The physical property Essays

The physical property Essays The physical property Essay The physical property Essay In conclusion it was found that the stiffness of the specific sample of steel used was. Stiffness is the physical property of being hard to bend. It was assumed that the blade was made up of steel. According to engineeringtoolbox.com/young-modulus-d_773.html the psi value for the different types of steel at 21 ranges from 27-30. Assuming that the room temperature was approximately 21, and the type of steel was nickel steel, it can be said that the 28% difference between the actual and calculated values in this experiment is acceptable, since it was not known what specific compound of steel the hacksaw blade was made up of, or what the exact temperature of the room was. As seen on the graph, the stiffness was found when T^2 was graphed against X^3, and the slope was taken and then substituted into the equation. The second point on the graph was labeled as a random error, and the slope of the line did not take into consideration that point. The random error occurred most likely because of human error, more specifically, not being able to count exactly 5 oscillations. It is likely that 4 oscillations were counted and therefore there was a decrease in time when compared with other values. There were quite a few limitations in the procedure. First of all, it is nearly impossible to count exactly five oscillations. There is always a human error, because it is impossible to tell where exactly the oscillation starts, and where exactly it ends. Along with that, the human factor also affects the data, because it is impossible to start a timer at exactly where the oscillation starts, and at exactly where it ends. But it could be said that the delayed reaction time in the beginning and in the end cancel each other out. Another limitation was the fact that only the mass of the magnet was taken into account. Ideally, both the mass of the magnet, and the mass of the hacksaw blade sticking out from the clamp would be taken into account. The biggest limitation of all was not knowing what exact material the hacksaw blade was made up of. This in turn made it difficult to compare the experimental value to an actual value. Another limitation was not knowing the temperature of the room, because as temperature increases the stiffness of the steel decreases. There a number of ways these weaknesses can be addressed. First of all in order to be able to count an exact number of oscillations, a high quality video camera can be utilized. By slowing down the video it can be found with reference to the recording time, when one oscillation started and where it ended. In order to take into account the mass of part of the hacksaw blade; the whole blade would have to be weighed first and its length measured. A ratio can then be used according to how long the distance is from the clamp to the end of the blade, and then a mass can be of the specific part of the hacksaw blade. This is of course assuming that the mass of the hacksaw blade is spread out evenly. Next time, a specific compound of steel should be used; this in turn would allow the calculated values to be compared to the actual values. The temperature should also be recorded during the beginning and the end of the experiment, because that has to be taken into account when comparing to actual values. Young Modulus of Elasticity for Metals and Alloys. Engineering ToolBox. 08 Mar. 2009; www.engineeringtoolbox.com.

The Hunger Games Book One Review

The Hunger Games Book One Review In The Hunger Games, author Suzanne Collins has created a fascinating dystopian world. The Hunger Games is a compelling novel focusing on life in an authoritarian society in which young people must compete to the death in the annual Hunger Games. The main character, 16-year-old Katniss Everdeen, volunteers for the Hunger Games to keep her younger sister from being required to participate and her experiences and fight to survive are the heart of the book. Reading The Hunger Games can lead to interesting discussions about our own world and how reality shows, threats of war, authoritarian governments and obsession with fashion trends influence us daily. Due to the darkness of the story, it is best suited for teens and adults rather than tweens, although many younger kids have read the book or seen the movie or both. Panem: the World of the Hunger Games Trilogy While the creation of Panem is not fully fleshed out until the second book, we know that this authoritarian society was the result of a horrible disaster during the Dark Days, resulting in the establishment of twelve districts under the rule of the government in the Capitol. Peacekeepers and a local government are instituted in each district, but the rulers in the Capitol have strict control over everything and everyone in each district. Each district has its own specialty that benefits the Capitol, such as coal mining, agriculture, seafood, etc. Some districts provide the Capitol with energy or material goods and some provide the manpower to keep those in the Capitol in power. The people who live in the Capitol contribute little to their own sustenance and are concerned mainly with the latest fashions and amusements. The Hunger Games are an annual tradition directed by the Capitol rulers, not only to amuse the citizens  but also to preserve control over the districts by demonstrating the Capitols dominance. Each year, the twelve districts must send two representatives, a girl and a boy, to participate in the Hunger Games. These representatives are called â€Å"tributes† to make people believe that representing their district is an honor, even though each person lives in fear that someone they love will be chosen. And the entire nation must watch as these 24 tributes battle each other to the death until only one is left as the victor. Having a victor is important to a district - extra food and a few luxuries will be granted to the winners district. The government has created the ultimate reality show, complete with technological challenges and constant monitoring of the movements of the participants. Each citizen is required to watch the Games until their conclusion, which may take hours or days. Summary of the  Story Sixteen-year-old Katniss Everdeen has been providing for her family since her father’s death in a mining accident. She has done this by illegally hunting beyond the boundaries of District 12 and using the game she kills for food or for barter. Through her skill with a bow and her ability to track and snare rabbits and squirrels, her family has been able to survive. They have also survived because Katniss signs up for the tessera, a ration of grain that is given in exchange for placing your name in the lottery for the reaping, the ceremony that determines who will be the district’s representative in the Games. Everyone’s name goes in the lottery from the time they reach the age of 12 until they turn 18. Each time Katniss exchanges her name for the tessera, her chances of being the one whose name is called increase. Only it isn’t her name that is called it is her sister’s. Prim Everdeen is the one person that Katniss loves above all others. She is only 12, quiet, loving and on her way to being a healer. She would not be able to survive the reaping and Katniss knows this. When Prim’s name is called, Katniss immediately volunteers to take her place as a tribute from District 12 to the Hunger Games. Katniss knows that it is not only her own life on the line in the games, but that others will benefit as well if she is the victor and her skills as a hunter will give her an edge in the Games. But her life as a tribute becomes more complicated by the other tribute from District 12. Peeta Mellark, the baker’s son, is a boy that Katniss owes a favor because of a kindness that he showed her when she was most desperate and her family’s survival was at stake. And Katniss knows that now her survival will mean his death. Katniss is whisked away from her family and Gale, her best friend and hunting partner, to the Capitol, where she is prepped and primped to participate in the Games. She and Peeta are to be mentored by Haymitch, the only tribute that District 12 has had who was a winner of the Games. But Haymitch is a reluctant and seemingly inadequate mentor, so Katniss realizes she must rely on her own strengths in order to survive. As the first book of the trilogy, The Hunger Games is compelling reading and makes the reader want to read the next book immediately to find out what happens to Katniss and Peeta. Katniss is a strong character who solves her own problems and takes charge of her own life. Her struggles with her divided affections between two boys are realistically portrayed but not overwrought. And her tendency to inadvertently create problems can spark many conversations about whether she was right or wrong and whether she stayed true to who she is. Katniss is a character that readers will not soon forget. About the Author, Suzanne Collins With the Hunger Games trilogy, Suzanne Collins, award-winning author of the Underland Chronicles, brings her talents to a new trilogy aimed at a more mature audience than her books about Gregor, the Overlander. Collins was named one of Time Magazine’s 100 Most Influential People in 2010, an honor that was based on the popularity of the first two books in the Hunger Games trilogy. In its popularity and impact, the trilogy has been compared to other popular fantasy novels for young people, such as the Twilight series and the Harry Potter series. Collins’ experience as a television writer enables her to create stories that appeal to tweens and teens. Suzanne Collins also wrote the screenplay for the movie adaptations of The Hunger Games. Review and Recommendation The Hunger Games will appeal to teens, ages 13 and up. The 384-page book contains violence and strong emotions so younger tweens may find it disturbing. The writing is excellent and the plot propels the reader through the book at a rapid rate. This book has been chosen by Kansas State University to be given to all of the incoming freshmen to read so that they will all be able to discuss it throughout the campus and in their classes. It has also become assigned reading in many high schools. The book is rich in discussion points not only about governments, personal freedom, and sacrifice but also about what it means to be yourself and not submit to society’s expectations. For information on challenges to the book, see The Hunger Games Trilogy. (Scholastic Press, 2008. ISBN: 9780439023481) Edited March 5, 2016 by Elizabeth Kennedy Disclosure: A review copy was provided by the publisher. For more information, please see our  Ethics Policy.

Anthropology. Evolution Assignment Example | Topics and Well Written Essays - 750 words

Anthropology. Evolution - Assignment Example The holistic foundation provided by it and distinct characteristics of every culture makes it distinguishing criteria and allow other fields of anthropology to revolve around it. A critical analysis of all these subfields helps in understanding that these areas provide an individual account of human history belonging to same era. Where cultural anthropology provides a comparative analysis of cultures all around the globe, physical/ biological anthropology provides details of evolution that this culture and its followers have shown over the period of time. Similarly, evolution of linguistics is considered as an important tool of examining changes in culture as language is a distinct characteristic of every human society. On the other hand, archeology refers to examination of past and present cultures and their physical remains. All these fields when tied together provide a detailed yet multidimensional account of one particular era of human history. Another major tying element is the disciplinary holism of anthropology (Harris, 1997). This method allows anthropologists to question why all these subfields are tied together in anthropology. This inter-relational nature of anthropology asserts that this study is a system-oriented phenomenon. Therefore, changes in one part of the society helps in examining changes the other parts went through. Examining a relationship between environment and humans helps in understanding the changes culture went through over the period of time and its related consequences on other dimensions of anthropology. Question 2 There are various types of evidences that support the phenomenon of evolution that living beings have experienced over the course of time. Some of these evidences include biogeography, functional morphology, paleontology, comparative embryology, animal and plant breeding and other molecular evidences (University of Arizona, 1996). These evidences can be categorized into direct observation, homology, vestigial traits a nd compensatory design, and fossil fuel records accordingly (Coyne, 2009). Evidences obtained through biogeography were based on examination of fossil remains which indicated that organisms present in isolated areas bear nearly same characteristics as those present in the mainland. On the other hand, functional morphology was based on evidences derived through examination of vestigial organs. Despite non-functional nature of these organs, there are various species that contain vestigial organs like pelvic bones in whales and tailbones in humans. Fossils also provide a detailed account of morphology. They contain records of simple structures that have shown evolution over the period of time and have developed into complex structures with different transitional forms. Comparative embryology helps in examining similar traits in embryos of different species at early stages (University of Arizona, 1996). This notion supports the idea of homology in different species. Such homology can al so be supported through genetic evidences and similar construction of body parts in different species which further helps in identifying their common ancestors. As far as examination of animal and plant breeding is concerned, it supports the phenomenon of artificial selection that lead to differentiation between domesticated and wild living beings. Simple example of this concept can be domestic breeds of dogs, cats and pigeons that have common ancestors as the wild animals however they bear various distinct physical and behavioral characteristics. Question 3 There are various evidences that indicate humans being a typical primate. A primate is expected to have distinct characters that distinguish it from other

Two Techniqyes in Hospitals Laboratory Essay Example | Topics and Well Written Essays - 2000 words

Two Techniqyes in Hospitals Laboratory - Essay Example This paper summarizes each of these methods and provides examples of their relevance to biomedical research and clinical medicine. Flow Cytometry Analytical flow cytometry (AFC) is used to assess the biochemical composition of cells using an optical scanner in the assessment of individual cells as they are screened individually at a rapid rate (approximately 100 cells per second) through an optical scanner (Boddy et al 2001; Givan 2001). This methodology permits quantitative measurements of molecular components within each cell individually (Davey & Kell 1996; Givan 2001). An important medical use of AFC is the identification of specific strains of infectious bacteria in infected cells obtained from patient biopsy (Boddy et al 2001). Once the pathogen is identified, AFC is also used in therapeutic assessment of antibiotics on the clinical course of infection by examining patient cells by AFC post-treatment. In this regard, AFC is an important biomedical tool in the assessment of para meters of clinical sensitivity and resistance of specific bacterial strains to specific therapeutic regimens (Davey & Kell, 1996). In addition, AFC can be used to measure the cellular DNA and protein concentration and the activity of specific enzymes (Roederer 2001). The capability of AFC to assess molecular content within individual cells involves the use of fluorescence measurements to characterize the biochemical components of cells. In this technique, fluorescent probes are applied to specific cell molecules which are then assessed via the detection of optical excitation patterns emitted by these optically labeled cell components. (Shapiro 2003). These optical excitation patterns emitted by the fluorescently labeled cell components can be used to pinpoint specific types of molecules and to quantitate their concentrations within the cell (Shapiro 2003). This accuracy is facilitated by the standardization of controlled flow by means of hydrodynamic focusing methods (Shapiro 2003). Further analytical sophistication can be achieved by the use of multiple optical beams and two channel detectors to detect two different cellular signals at the same time in the same scan while providing a high sensitivity (Zhong et al 2005). Labeled nanoparticles are also be utilized as probes in the molecular assessment of cell composition (Zhong et al 2005). In addition to biochemical composition, AFC can be used to assess cell proliferation by means of accurately identifying cell cycle composition of dividing mitotic cells. This assessment can be carried out in individual cells (Pozaroski & Darzynkiewicz 2004). This method requires the DNA binding dye propidium iodide (Shapiro 2003). DNA and protein content can be assessed simultaneously in individual cells by means of bivariate analysis and comparisons between normal cells and tumor cells (Pozaroski & Darzynkiewicz 2004). This technique also permits the evaluation of cell viability on an individual basis and can distinguish ce ll death resulting from apoptosis versus necrotic mechanisms (Bertho et al 2000). Apoptosis results in a characteristic cell fragmentation into small apoptotic bodies containing fragmented DNA segments; this process can be detected by AFC and distinguished from plasma membrane degradation which is characteristic of necrotic cell death mechanisms. Cell viability measurements are an important component of disease assessment with regard to the identification of pathogenic mechanisms that may cause cell

Philosophies of Socrates, Plato, and Aristotle Essay Example for Free

Philosophies of Socrates, Plato, and Aristotle Essay The philosophies of Socrates, Plato, and Aristotle had different points of-view but they were also similar in some ways. For example, all three philosophers had their own thoughts on the subject of justice and government. Socrates belief on this matter was that democracy was an unwise form of government. He thought that the electing of the people was unfair justice. Plato had some of the same beliefs. He believed that government should only have rulers who had the intelligence and education appropriate for the matter. His thoughts were that a job should be done only by those who are best suited for it. To him aristocracy was a perfect form of government. The point of Socrates philosophies were to make people think about the questions he would often ask. The reason for these questions being asked were to have people to their own thoughts and opinions toward life. He did not think a person with the right mind should follow the steps of their ancestors. Instead of going around asking questions, Plato, another philosopher, would write his own conversations with imaginerary people. These conversations would cover much of the same topics that Socrates had tried to cover earlier. These topics mostly dealt with life such as government, opinions toward justice and how people really viewed education. Aristotle also had his own theories towards his belief of the right government. He wanted his results to show happiness among the people. Hed mainly collect information from studying living creatures and observing their living habits. He would do this so that he could see what brought them happiness. His opinion toward life was that all people should live a fair and happy life. After many attempts of forming the perfect government , his facts allowed him to believe that a perfect government could be formed only by those who have a middle class. The middle class would consist of those who were not rich yet not poor. Both Aristotle and Plato had different thoughts on the division of the government. Aristotle claimed to believe that a government should consist  of many classes for the protection of the people and the state. While Plato disagreed and thought that dividing of power was unfair and cruel. In his mind, he felt that those in the lower class could never have the chance to get any higher in life. Though all three philosophers felt that the government should be based on the equalness of all the people, they all had different views on what equality really meant. These philosophers all had their own way of gathering information and passing it through the minds of others.

Biography On Julius Caesar :: essays research papers

Julius Caesar A Man of Great Stature Julius Caesar was a strong leader of the Romans who changed the course of the history for the Roman world decisively and irreversibly. With his courage and strength, he created a strong empire and guided the empire for almost 20 years. His life was short, but had many adventures. I will tell of some of this man’s remarkable life. He did many things, therefore, I will only discuss a few. His name, part of his reign, one of his greatest battles, and his death will be told. Julius Caesar was born on the 13th day of the month Quintilis (now July) in the year of 100 B.C. His full name was Gaius Julius Caesar, the same as his father's name. Gaius was his given name and Julius was his surname. Caesar was the name of one branch of the Julian family. Its original meaning was "hairy.† Caesar's family was not prominent, but they claimed to be descended from Venus as well as the kings of Alba Langa. In spite of that fiction, Caesar was well connected through his relatives and received some important government assignments during his youth. Julius Caesar was the dictator of Rome from 61-44 BC. At the time of his birth, Rome was still a republic and the empire was only beginning. Caesar made his way to be considered a head of Rome by 62 BC, but many of the senate felt him a dangerous, ambitious man. The senate did their best to keep him out of consulship. He finally became consul in 59 BC. In Caesar, they saw only the threat of a king, a word that was l inked with the word â€Å"tyrant† that is cruel or unjust rule. One of Caesar’s greatest victories in battle was just after he had gained control over the lands of Bituriges, Vercingetorix. He started to lead his army to the Boii oppidum of Gorgobina, another city under his control. On the way, he stopped his troops at Vellaundunum, oppidum of the Senones, and set up siege. He did not want to leave any enemies behind him who might get in the way of the grain deliveries and supply. The Carnutes, one of Rome’s enemies, had just heard of the siege at Vellaundunum. They gathered troops to Garrison Cenabum, the Carnutes stronghold. Caesar’s army camped out right in front of the fort. Biography On Julius Caesar :: essays research papers Julius Caesar A Man of Great Stature Julius Caesar was a strong leader of the Romans who changed the course of the history for the Roman world decisively and irreversibly. With his courage and strength, he created a strong empire and guided the empire for almost 20 years. His life was short, but had many adventures. I will tell of some of this man’s remarkable life. He did many things, therefore, I will only discuss a few. His name, part of his reign, one of his greatest battles, and his death will be told. Julius Caesar was born on the 13th day of the month Quintilis (now July) in the year of 100 B.C. His full name was Gaius Julius Caesar, the same as his father's name. Gaius was his given name and Julius was his surname. Caesar was the name of one branch of the Julian family. Its original meaning was "hairy.† Caesar's family was not prominent, but they claimed to be descended from Venus as well as the kings of Alba Langa. In spite of that fiction, Caesar was well connected through his relatives and received some important government assignments during his youth. Julius Caesar was the dictator of Rome from 61-44 BC. At the time of his birth, Rome was still a republic and the empire was only beginning. Caesar made his way to be considered a head of Rome by 62 BC, but many of the senate felt him a dangerous, ambitious man. The senate did their best to keep him out of consulship. He finally became consul in 59 BC. In Caesar, they saw only the threat of a king, a word that was l inked with the word â€Å"tyrant† that is cruel or unjust rule. One of Caesar’s greatest victories in battle was just after he had gained control over the lands of Bituriges, Vercingetorix. He started to lead his army to the Boii oppidum of Gorgobina, another city under his control. On the way, he stopped his troops at Vellaundunum, oppidum of the Senones, and set up siege. He did not want to leave any enemies behind him who might get in the way of the grain deliveries and supply. The Carnutes, one of Rome’s enemies, had just heard of the siege at Vellaundunum. They gathered troops to Garrison Cenabum, the Carnutes stronghold. Caesar’s army camped out right in front of the fort.

Flame Test Lab Write-Up

Sydney Schell October 18th, 2012 Identifying Metallic Components Introduction: Spectroscopy is the study of the electromagnetic radiation emitted or absorbed by the atoms and molecules. A photon in short is light. Atoms produce light by putting energy in, the electron then becomes excited and goes up an energy level, the electron then falls back down to its ground state, and out comes a photon (light). The electromagnetic spectrum contains color that we can and cannot see.The color blue has the highest energy with shorter wavelengths and a higher frequency while the color red has the lowest amount of energy with long wavelengths and a shorter frequency. Hypothesis: If you observe the characteristic emission spectra of several gases and metallic ions then you can identify the metallic component(s) of an unknown substance based on flame color. Materials: * Samples of the following metallic salts * Calcium chloride * Copper chloride * Iron chloride * Lithium chloride * Potassium chlorid e * Sodium chloride * Strontium chloride * Unknown 1 * Unknown 2 Bunsen burner and accessories * Safety goggles * Lab apron * Splints soaked overnight in distilled water * 250 mL beaker half full of distilled water Procedures: 1. Place the end of one of the popsicle sticks soaked in a solution into the flame. Note color(s) of the flame and the duration of each color. Immerse the wooden splint in the distilled water to fully extinguish it, and then discard it in the trash. Record your results. 2. Repeat step 4 for each of the remaining salts. 3. Repeat step 4 for each of the unknown metals and predict the identity of the unknown metals.Repeat any of the known metals to help with this prediction. **Wash hands thoroughly before leaving the lab. ** Some of the salts used are poisonous or irritating to the skin. Keep your hands away from your mouth until after you have washed them and have let the laboratory. Results/Data Collection/Analysis: The calcium chloride had a pretty average wav elength and turned the fire green. For some reason CuCl and NaCl both burned orange, coming in with the second lowest energy. Iron chloride had a â€Å"sparky† appearance that lasted for approximately six seconds and it was concluded that it had a high energy.Lithium chloride burned a pinkish color. Potassium chloride had a high energy and produced a purple flame. Strontium chloride had the lowest energy which was determined by red color of its flame. Unknown 1 was strontium chloride and unknown 2 was calcium chloride. The unknowns were found by comparing their flame colors to the known substances. Formula| Metal| Color Observed| Duration(sec)| CaCl2 | Calcium Chloride| Green| N/A| CuCl| Copper Chloride| Orange| N/A| FeCl3| Iron Chloride| Sparkle| 6 sec| LiCl| Lithium Chloride| Pink| N/A| KCl| Potassium Chloride| Purple| N/A| NaCl| Sodium Chloride| Orange| 30 sec|SrCl2| Strontium Chloride| Red| N/A| Unknown 1| Strontium Chloride| Red| 8 sec| Unknown 2| Calcium Chloride| Green | N/A| Questions: 1. What was (were) the identity of the metal ion(s) in the unknown solutions? Give evidence. -Unknown 1 proved to be strontium chloride because they shared the same flame color. Unknown 2 turned out to have a green flame which matched it up with calcium chloride. 2. Predict the flame color if metallic ions of copper and strontium were mixed. -Strontium and copper together should make a red orange or orange red depending on what the dominate color is. 3.Based on the flame colors in the experiment, which single element would most likely be used to produce yellow fireworks? Why? -Iron would most likely be used to make yellow fireworks based on the sparks it has originally have a tannish/yellow color to them. 4. Why do the metals give off light? -When the metals are rammed into heat they react and produce light. 5. Which of the flames that you observed gave off the most energy? -Potassium chloride gave off the most energy and one could tell based on its purple flame. 6 . Why do some of the samples give off more than one color flame? When an electron goes through its excited sate it changes color but when it falls back down to its ground state then it goes back to its original color. Conclusion/Discussion: The hypothesis was supported because once I found out the color flame produced by all the solutions; I could match the unknowns with the known substances. We worked to slowly when we did the lab so we had to use second hand data. Also, lighting the Bunsen burner on fire was not the best idea. Why are the flames of no two gases exactly the same color? -Different gasses have a different amount of electrons on different energy levels.

Advantage of Cng over Petrol and Diesel Cars Essay

What are the advantage of CNG over petrol and diesel engine? Answer: CNG engines create less pollution than petrol and diesel engines. As it is using compress natural gas power develops more than the others and also develops more torque in the engine. which leads to give a lower fuel consumption. | | | The Advantages of Compressed Natural Gas The Environmentally Clean Advantage | Compressed natural gas is the cleanest burning fuel operating today. This means less vehicle maintenance and longer engine life.| | CNG vehicles produce the fewest emissions of any motor fuel.| | Dedicated Natural Gas Vehicles (NGV) have little or no emissions during fueling. In gasoline vehicles, fueling emissions account for at least 50% of a vehicle’s total hydrocarbon emissions.| | CNG produces significantly less pollutants than Petrol & Diesel.| | Tailpipe emissions from gasoline operated cars release carbon dioxide, which contributes to global warming. This is greatly reduced with natural gas.| The Maintenance Advantage | Some fleet operators have reduced maintenance costs by as much as 40% by converting their vehicles to CNG.| | Intervals between tune-ups for natural gas vehicles are extended 30,000 to 50,000 miles.| | Intervals between oil changes for natural gas vehicles are dramatically extended–anywhere from 10,000 to 25, 000 additional miles depending on how the vehicle is used.| | Natural gas does not react to metals the way gasoline does, so pipes and mufflers last much longer.| The Performance Advantage | Natural gas gives the same mileage as Petrol in a converted vehicle.| | Dedicated CNG engines are superior in performance to Petrol engines.| | CNG has an octane rating of 130 and has a slight efficiency advantage over Petrol.| | Because CNG is already in a gaseous state, CNG Vehicles have superior starting and drivability, even under severe hot and cold weather conditions.| | CNG Vehicles experience less knocking and no vapor locking.| The CNG Cost Advantage | Natural gas is cheaper per equivalent gallon than Petrol (an average of 50% less than Petrol).| The Safety Advantage | Surveys indicate that CNGVehicles are as safe or safer than those powered by other fuels. A 1992 Australian Gas Assocition survey of more than 8,000 vehicles found that with more than 278 million miles traveled, CNG Vehic le injury rates per vehicle mile traveled were 34% lower than the rate for Petrol Vehicles. There were no fatalities reported–even though these vehicles were involved in over 1,800 collisions.| The Financial Incentive Advantage | Some States offers a 50% investment tax credit for each vehicle converted to natural gas. This 50% credit on state income tax features a three-year, carry-forward option.| | A federal tax deduction is also available for the cost of conversion.| CNG Conversions Converting a Petrol-Powered car to CNG requires only minor engine modifications. To learn more about converting your car, please contact a certified CNG conversion technician. What are the major benefits of natural gas as a transportation fuel? EconomicsOn a gallon-equivalent basis, natural gas costs an average of 50 to 60 percent less than Petrol and Diesel. Natural gas is a clean-burning fuel that reduces vehicle maintenance. Many CNG Vehicle owners report that oil changes are needed only every 15,000 Km. Standard spark plugs last as long as 60,000 Km. Natural gas, unlike liquid fuels, cannot be siphoned from a vehicle. Fuel theft is an on-going concern of fleet managers. Vehicles can be â€Å"fast filled† in five to six minutes using compressed gas stored in cascades of natural gas cylinders or fueled overnight on a â€Å"timed fill† basis in about five to eight hours. Many private fleet fueling stations use a combination of fast fill and timed fill. | EmissionsNatural gas is the cleanest burning alternative fuel. Exhaust emissions from CNG Vehicles are much lower than those from equivalent Petrol-powered vehicles. For instance, CNG Vehicle emissions of carbon monoxide are approximately 70 percent lower, no n-methane organic gas emissions are 89 percent lower, and oxides of nitrogen emissions are 87 percent lower. In addition to these reductions in pollutants, CNG Vehicles also emit significantly lower amounts of greenhouse gases and toxins than do Petrol vehicles. Dedicated CNG Vehicles produce little or no evaporative emissions during fueling and use. For Petrol vehicles, evaporative and fueling emissions account for at least 50 percent of a vehicle’s total hydrocarbon emissions. Dedicated CNG Vehicles also can reduce carbon dioxide exhaust emissions by almost 20 percent. Exposure to the levels of suspended fine particulate matter found in many U.S. cities has been shown to increase the risk of respiratory illness. Diesel exhaust is under review as a hazardous air pollutant. Natural gas engines produce only tiny amounts of this matter. Greenhouse GasesPer unit of energy, natural gas contains less carbon than any other fossil fuel, and thus produces lower CO2 emissions per vehicle mile traveled. While natural gas vehicles (CNG Vehicles) do emit methane, another principle greenhouse gas, any slight increase in methane emissions would be more than offset by a substantial reduction in CO2 emissions compared to other fuels. CNG Vehicles also emit very low levels of carbon monoxide (approximately 70 percent lower than a comparable Petrol vehicle) and volatile organic compounds. Although these two pollutants are not themselves greenhouse gases, they play an important role in helping to break down methane and some other greenhouse gases in the atmosphere, and thus increase the global rate of methane decomposition.SafetyVehicles that run on clean burning natural gas are as safe as vehicles operating on traditional fuels such as Petrol. In fact, many school transportation managers choose natural gas to power their school buses because compressed natural gas, unlike Petrol, dissipates into the atmosphere in the event of an accident. Petrol pools on the ground creating a fire hazard. In the US a survey was taken of more than 8,000 vehicles that cumulatively traveled approximately 278 million miles from 1987-1990. The survey found that the injury rate for CNG Vehicles per vehicular mile traveled (VMT) was 37 percent lower than the rate for Petrol-powered fleet vehicles and 34 percent lower than the entire population of registered Petrol vehicles. In addition to the lower injury rate, no deaths were recorded for the CNG Vehicles in the survey. In contrast the deaths associated with the Petrol fleet vehicles surveyed came to 1.28 deaths per 100 million VMT. The US national average was 2.2 deaths per 100 million VMT for all U.S. Petrol vehicles. There are two fundamental reasons for this excellent CNG Vehicle safety record: the structural integrity of the CNG Vehicle fuel system and the physical qualities of natural gas as a fuel. The fuel storage cylinders used in CNG Vehicles are much stronger than gasoline fuel tanks. The design of CNG Vehicle cylinders are subjected to a number of federally required â€Å"severe abuse† tests, such as heat and pressure extremes, gunfire, collisions and fires. While fuel storage cylinders are stronger than Petrol fuel tanks, the composite material used to encase the tanks are fundamentally more susceptible to physical damage than metals under abusive conditions. For this reason, composite materials on CNG Vehicle cylinders must always be properly handled and protected. Incidents involving natural gas cylinder ruptures revealed that some form of chemical attack or physical damage to the composite overwrap on the cylinder was involved. CNG Vehicle fuel systems are â€Å"sealed,† which prevents any spills or evaporative losses. Even if a leak were to occur in an CNG Vehicle fuel system, the natural gas would dissipate into the atmosphere because it is lighter than air. Natural gas has a high ignition temperature, about 650  º C, compared with about 350  º C for Petrol. It also has a narrow range of flammability; that is, in concentrations in air below about 5 % and above about 15 %, natural gas will not burn. The high ignition temperature and limited flammability range make accidental ignition or combustion of natural gas unlikely. Natural gas is not toxic or corrosive and will not contaminate ground water. Natural gas combustion produces no significant aldehydes or other air toxins, which are a concern in gasoline and some other alternative fuels. The natural gas delivery system also has an excellent — and proven — safety record. According to statistics from the U.S. Department of Transportation, the 1.9 million Km natural gas transmission and distribution system is the safest way to transport energy in the United States. CNG Vehicles use the same energy that has safely and comfortably heated homes and cooked meals for more than 100 years.Where are CNG Vehicles used now? Approximately 100,000 CNG Vehicles are on U.S. roads today. CNG Vehicles have a long-established record in Europe, Canada, New Zealand and Australia, as well. Italy has been using natural gas as a vehicular fuel since the 1940s, with more than 350,000 CNG Vehicles. In Canada, nearly 20,000 CNG Vehicles operate with a network of 220 public fueling stations. Argentina has 680,000 CNG Vehicles, and Russia has more than 30,000. Worldwide, nearly two million CNG Vehicles are in use, in countries now including Uzbekistan, Venezuela, Mexico, the Philippines and Indonesia. How do CNG Vehicles work? The only major difference between a Petrol vehicle and an CNG Vehicle is the fuel system. Natural gas is compressed to between 3,000 and 3,600 pounds per square inch (200 bar) and is stored on board the vehicle in cylinders installed in the rear, undercarriage, or on the roof. When natural gas is required by the engine, it leaves the cylinders, passes through a master manual shut-off valve and travels through a high-pressure fuel regulator located in the engine compartment. The natural gas is injected at atmospheric pressure through a specially designed natural gas mixer where it is properly mixed with air. Natural gas then flows into the engine’s combustion chamber and is ignited to create the power required to drive the vehicle. Special solenoid-operated valves prevent the gas from entering the engine when it is shut off.What about the vehicle’s power? Petrol vehicles converted to natural gas are subject to a small power loss when running on natural gas; however, vehicles designed specifically to run on natural gas will have no loss of power and may even have greater power and efficiency. Natural gas has a 130 octane rating, compared with 87 to 96 octane rating of Petrol.How much energy does Compressed Natural gas release compared to petrol? A direct answer to your question is that the energy content of natural gas (CNG) is about 47 MJ/kg or 40 MJ/m3. (gross heating value). The values for a typical petrol are 60 MJ/kg and 44 MJ/liter. Another comparison on an energy basis is that 1 kg of CNG is equivalent to about 1.33 liter of petrol or 1.22 liter of diesel. Or on a volume basis 1 m3 of CNG is equivalent to about 1.10 L of petrol or 1.0 L of diesel. When making comparisons you may also need to take into account the relative energy efficiency of the engines that use the various fuels. Generally engines that are designed for natural gas fuel are slightly more efficient than a similar petrol engine (because they can run at a higher compression ratio). The CNG and diesel engines of similar size will have a much the same thermal efficiency.What is the miles per gallon equivalent of natural gas compared to gasoline? If the CNG Vehicle is an original Equipment Manufacturer (OEM) model, it will have been designed to make the most of the excellent properties of Natural Gas – eg it will have a higher compression ratio than the petrol model and different ignition timing – and you could expect to see an improvement in performance and fuel consumption on an energy basis. This might be about 5% or more. Of course you might then drive faster, and not have any advantage. If the car has been converted from Petrol to CNG and you can choose to run on either fuel (ie a bi-fuel vehicle) then it is not possible to make the most of the higher octane rating of the CNG. In this case the change in fuel consumption will depend very much on the vehicle and engine design and on the conversion equipment used and how it is tuned. In this case you might expect an increase of possibly 5% in consumption. However the tune may be optimized to a particular power and speed range and if you can hit this you might get a small improvement. There may be more scope to achieve this on a high capacity engine with reserves of power. On a smaller engine there may be a noticeable drop in power and your consumption could increase if you try to match the old on-road performance.Cylinders in Accidents A pressurized gas cylinder is probably the strongest component on the vehicle. Vehicles that totally destroyed in collisions show the only discernible component being the intact gas cylinder. It is unlikely that cylinders will rupture due to collision impact.Regarding the danger of fire from leaking cylinders, all we have is the experience to date that indicates that such an event is unlikely to occur. In North America there was a problem with leaking type 4 designs from a particular manufacturer, but there has never been an ensuing fire. The risk of fire from leaking cylinders must be low since there are well over a million CNG vehicle installations worldwide that have not experienced such problems.It is worth pointing out that natural gas is lighter than air and in the unlikely event of a leak from piping or container the gas will dissipate upwards quite quickly. In the case of petrol and LPG the vapors given off is heavier than air and will tend to pool near the ground. This is where there is a strong risk of some ignition source. In general terms diesel ranks high in terms of safety, but most people rank Natural Gas next.What are the factors which affect the fuel efficiency of CNG? In the first place let us list the energy content of the fuels you mention. Using units of MJ per kilogram, the net heating values of petrol, diesel, LPG and CNG are about 45, 43, 46, and 44; the net heating value does not include the heat in the water vapor of the combustion products. If you look up the gross heating values – which do include this, the values are different (higher). So the differences between the fuels are not large. But the values will also vary quite a lot depending on the composition of the fuel – particularly for CNG and LPG.We now need to consider the way in which different engines use the fuels – in particular the efficiency. The engine thermal efficiency is a function of many different factors but perhaps the most important one is the engine compression ratio. The higher the compression ratio the higher is the theoretical and also the actual efficiency. The maximum compression ratio (CR) different fuels can tolerate in fact defines the ef ficiency. Since diesel used in a compression ignition engine can operate at say 14:1 the diesel will be expected to have the highest efficiency – lets say 40% as an upper limit. The next highest efficiency in the fuels comes from CNG, which can operate at say 12:1. with an efficiency of say 35%. It is possible to run an engine on CNG at 14:1 but that is the very upper limit. We would not expect to be able to run petrol and LPG engines at much more than 9:1 and an efficiency of about 30%. These efficiencies are the upper limits and at full load – in normal operation they will be lower than the values quoted, but in much the same proportion. The main reason for the differences is the variation in limiting CR for the different fuels. So here is a starting point for a discussion of the differences in efficiency.As far as fuel energy comparisons go (and this does not take into account the different engine efficiencies), 1 kg of CNG is equivalent to about 1.33 liters of petrol or 1.22 liters of diesel – but of course occupies a greater volume. Or 1 cubic meter of CNG at atmospheric pressure is equivalent to 1.10 liters of petrol and 1.00 liters of diesel.Note that there are a lot of other factors that we have not considered – for example the diesel engine will be much heavier than the other engines, and the Petrol fuels will need pressure vessels to contain them. Having established how much energy you get from the different fuels and how efficiently th e different engines can use the fuels, you will be able find out how much they cost and then work out a cost per km or mile. In many countries CNG will come out as best value and that diesel will be next, followed by LPG and then petrol. But prices do vary a great deal. Incidentally if you have a petrol engine that has been converted to use CNG you will not achieve the high efficiency quoted above because the compression ratio will be fixed at the level required for petrol – you will only get the benefit of higher efficiency in an OEM.What are the economics of small vehicle conversion? In very general terms the smaller the vehicle the longer is the payback period for the cost of conversion. This is because the fuel consumption – and therefore savings – for the smaller vehicles is lower, and at the same time the cost of conversion does not go down much with vehicle size. The cost of the fuel control system stays much the same and the price of a smaller storage cylinder will not be much lower (and in a small vehicle it is more difficult to find a space for the cylinder).It may be difficult to justify the conversion on an economic basis, but this does depend on annual mileage. Do a rough sum on the basis of saving half (or whatever the price differential is in your area) of your fuel costs in a year. You should expect better than a three year payback on the basis of economics.Environmental benefits and lower maintenance costs will be small.Check where you would be able to find space for the storage cylinder which must be sized to meet commuter needs. And of course allow something for the satisfaction of knowing that you are lowering your output of hydrocarbon emissions.Is driving around with cylinders full of gas under pressure dangerous? Thick-walled reinforced aluminum cylinders, steel cylinders or 100% composite materials are used to store compressed natural gas (CNG) as a vehicle fuel. These cylinders are manufactured and tested in compliance with strict regulations, and have withstood severe abuse testing under conditions far more stringent than tanks designed for storing gasoline. Natural gas vehicles submitted to test crashes up to 52 miles per hour, which have been totally destroyed, but show little or no damage to the compressed gas cylinders (CNG). Bonfire and dynamite tests push cylinders to temperature and pressures exceeding specified limits showing that compressed natural gas (CNG) cylinders are durable and safe. Of course, as with all fuel systems, these cylinders are not indestructible and should be inspected periodically to ensure that no surface damage has occurred.In which countries are natural gas vehicles popular? Natural gas as a vehicle fuel has a long and established record in Europe, Canada, New Zealand, Australia, and in the U.S.A. Other countries are recognizing the benefits of CNG Vehicle’s, and plan to expand the use of CNG Vehicle.In Europe, Italy has been using natural gas as a vehicle fuel since the 1920’s and has about 370,000 CNG Vehicle’s. The Italians have a network of 280 filling stations to support their use of compressed natural gas (CNG). Russia has about 75,000 CNG Vehicle’s and a fuelling network of some 250 stations. Outside of these countries, there are now several thousand CNG Vehicle’s in Europe and a slowly growing fuelling station infrastructure.Argentina has 700,000 CNG Vehicle’s – the largest fleet in the world – and is converting more than 3,000 vehicles a month and has over 950 fuelling stations in operation and more than 100 under development. Venezuela has a national CNG Vehicle programmers and will be ins talling 60 fuelling stations and converting vehicles.Canada has about 36,000 vehicles converted to natural gas, and the government-supported NGV programmer has created a number of incentives. The Canadian government provides cash incentives for fleets to convert their vehicles, and hopes to use CNG for 10% of the entire country’s future vehicle fuel requirements.In the U.S.A. there are now about 68,000 vehicles fuelled on natural gas. Natural gas vehicles have been in use there since the late 1960s, but comparative prices with gasoline and state-of-the-art technologies are only now making natural gas economically and technologically competitive with gasoline vehicles. There are about 1,200 private and public refueling stations.What are the conversion factors for natural gas? Methane values are fixed and can be found in any chemical handbook, while the composition of natural gas varies with source and time so try to find a local value. Approximately, 1kg CNG is equivalent to about 1.33 liters (L) of petrol or 1.22 L diesel. And 1 cu meter of CNG is equivalent to about 1.10 L of petrol or 1.00 L diesel.

Test your trademark knowledge - Emphasis

Test your trademark knowledge Test your trademark knowledge How much attention do you pay to trademarks? Mistakenly use one to refer to a generic product, and you can land yourself with a letter from the company concerneds trademark lawyers, and the need to write embarrassing apologies. While its OK to tweak trademarks slightly to bring them into line with standard English (for example More Than, rather than MORE THN), its not OK to use a trademarked name to describe a product not made by that company. In some cases, the horse has already bolted Hoover is now almost synonymous with vacuum cleaner, for example, regardless of the brand. But use Thermos to describe a vacuum flask not made by Thermos and youre on dodgy ground. Take our quiz to see how trademark-aware you are. For each item, decide whether its a current trademark, a lapsed trademark or a red herring. To make it more difficult, weve written them all with an initial capital. After you submit your answers, youll get an explanation of each one. JacuzziCurrently trademarkedPreviously trademarked but now genericNever trademarkedCokeCurrently trademarkedPreviously trademarked but now genericNever trademarkedHot DogCurrently trademarkedPreviously trademarked but now genericNever trademarkedAspirinCurrently trademarkedPreviously trademarked but now genericNever trademarkedLycraCurrently trademarkedPreviously trademarked but now genericNever trademarkedTetra PakCurrently trademarkedPreviously trademarked but now genericNever trademarkedEscalatorCurrently trademarkedPreviously trademarked but now genericNever trademarkedBiroCurrently trademarkedPreviously trademarked but now genericNever trademarkedHeroinCurrently trademarked Previously trademarked but now genericNever trademarkedTannoyCurrently trademarkedPreviously trademarked but now genericNever trademarkedMopedCurrently trademarkedPreviously trademarked but now genericNever trademarkedPortalooCurrently trademarkedPreviously trademarked but now genericNever trademarked *Note: all answers accurate at the time of writing

40+ Amazing Gifts for Writers (That Your Friend Will Love)

40+ Amazing Gifts for Writers (That Your Friend Will Love) 40+ Amazing Gifts for Writers That Will Help You "Win" Christmas 'Twas the night before Christmas, when all through Reedsy, the writers were stirring, to make gift-giving easy.That’s right, Christmas is around the corner! We know from personal experience just how hard it is to shop for authors, so we put in the hard work for you and created this guide of usual and unusual gifts for writers in your lives. It’s split into four sections (differentiated by price points) for easy access.We hope that it helps you during the annual holiday crunch. Simply browse below to find the perfect gift for your writer friends - or even for yourself. Merry Christmas shopping, everyone!Below $101. â€Å"Jane Austen† Socks ($9)(Image: Stata)Is there anything cooler in the world than Mrs. Weasley’s clock? (For the Muggles out there, it’s a clock that lets you know where the people in your life are at any given moment in time, which isn’t stalkerish at all.) Well, we have good news for you: it now exists! Built by Stata, it use s technology and GPS and relay your loved ones’ coordinates on a clock face that has such options as â€Å"Home,† â€Å"Friends,† â€Å"Out,† â€Å"Transit,† â€Å"Airport,† â€Å"Lost,† and â€Å"Hospital.† There’s no â€Å"Mortal Peril† option yet - at least not until Voldemort actually pays us a visit in our Muggle world.41. Writing workshops ($120-$500)A writing workshop is literally the gift that will keep on giving, as the knowledge that participants gain from it will benefit them in the long-run.   It’s a great way to encourage writers, both amateur and experienced. Check out these online writing courses below to see if one of them could make the perfect Christmas gift:Catapult24PearlStreetWriter’s Digest UniversityGotham Writers Community42. Subscription to Kindle Unlimited ($120)Two words: unlimited reading. Kindle Unlimited gives its members the freedom to explore over 1 million titles, thousands of audiobooks, and any magazine. This might be the only thing better than a Kindle - although this subscription paired with a Kindle wouldn’t be too shabby, either.These items have been chosen independently by the team at Reedsy, but if you buy something through our post, we may get a small share of the sale. If you have any suggestions for other great gifts for writers, please share them in the comments below!

World war 1 Essay Example | Topics and Well Written Essays - 500 words

World war 1 - Essay Example he abrupt cause of the war was entrenched in the conclusions reached by statesmen and generals during the July Crisis of 1914, which saw the assassination of Archduke Franz Ferdinand of Austria and his wife by an irredentist Serb (Ferguson 1-11). The conflict came after a long and complicated series of diplomatic collision between the Great Powers including France, British Empire, Italy, Austria-Hungarian Empire, Germany and Russia over colonial and European concerns in the decade before 1914 that had precipitated a high tension. Consequently, these diplomatic collisions can be traced to amendments in the balance of power in Europe since 1867. The more abrupt cause for the war was tensions over territory in the Balkans. Russia and Serbia competed with Austria-Hungary for territory and power in the region and they pulled the rest of the Great Powers into the collisions through their various coalitions and treaties. In November 1912 Russia, mortified by its incapacity to support Serbia during the Bosnia crisis of 1908, announced a major reconstruction of its military (Harrison 30-45). The start of World War I has exceedingly been attributed to imperialism. Countries such as France and British Empire amassed great wealth in the late 19th century through direct control over foreign trade in foreign resources, territories, markets and people. Further empires, Austria-Hungary, Russia, Italy and Germany held high hopes of controlling foreign trade too. Their humiliated dreams and United Kingdom guidelines of strategic omission precipitated tensions. Furthermore, the limits to natural resources in many European nations began to gradually change trade balance, and made national industries hunt for new territories rich in natural resources. Profit-making interests contributed considerably to Anglo-German competition during the scuttle for tropical Africa. This was the landscape of the sharpest disagreement between particular German and British money-making interests.

Judge Making the Decision Case Study Example | Topics and Well Written Essays - 750 words

Judge Making the Decision - Case Study Example If the court discovers it does not have jurisdictional rights to hear the case it will not be accepted or it will eventually be dismissed. The requirements stand thus: No divorce shall be granted unless the plaintiff has resided in this state for sixty (60) days immediately preceding the time of filing the complaint, or the marriage was solemnized in this state and the plaintiff has resided in this state from the time of the marriage until the filing of the complaint. A married person who at the time of filing a complaint for divorce resides in this state is a resident although his spouse may reside elsewhere. A divorce may be filed in the district court of the county in which either party resides. (Wyoming Statutes - Title 20 - Chapters: 20-2-104, 20-2-107 and 20-2-108). The Complaint for Divorce must declare the appropriate Wyoming grounds upon which the divorce is being sought. The appropriate lawful ground will be that which the parties agree upon and can substantiate, or that which the filing spouse desires to prove to the court. The divorce grounds are as follows: To obtain a No-Fault divorce the plaintiff must allege Irreconcilable differences in the marital relationship. To obtain a divorce based upon Fault, the plaintiff must allege that defendant is incurably insane and the insane person has been confined in a mental hospital of this state or of another state or territory for at least two (2) years immediately preceding the commencement of the action for divorce. (Wyoming Statutes - Title 20 - Chapters: 20-2-104, 20-2-105) Here, plaintiff merely alleges a homosexual affair. Assuming arguendo that the allegations are true, they amount to nothing more than a charge of adultery which is not grounds for divorce in this state. Furthermore, plaintiff has not alleged in her complaint the requisite jurisdictional predicates for this court to take jurisdiction of this matter. She merely alleges that the parties own land in this state. The record reflects no reason for this court to presume that the plaintiff resides in this state or that she has for the past sixty days. Accordingly, and based upon the foregoing the complaint is dismissed without prejudice.