Friday, January 31, 2020

Australia Movie Review Example | Topics and Well Written Essays - 500 words

Australia - Movie Review Example It also shows the conflict between the aboriginals and the Europeans. So the movie has been acted in the right country so as to portray the Australians character. In the movie Australia, the cultural landscape portrays very old houses, which have been traditionally built. Most of the houses been build using mud, and this makes the movie look like a traditional movie which was shot long time ago. There is the existence of ranches, which keep large head of cattle implying that the movie must have been shot to represent how the Australians lived a long time ago. The movie takes place in the Australia this is because of the physical appearance of the landscape. Australia is a country, which is known to having a very rugged landscape which is very mountainous. The tribunal Aborigine is a traditional culture which is used in the movie and was highly associated with the country of Australia. This serves as evidence that the movie was shot in the country of Australia. The movie also shows Nullah as an aboriginal child of a mixed race. Other products such as Scarlett and Rhett were also other products which were associated with the same country. The movie wants to show how the Australians lived long before. It also shows the lifestyle that they were living in which includes inheriting of property because the cows Maitland has were gained through inheritance. The beginning of the second world is also reflected in the movie. The culture is unfolded using artifacts, sociafacts and mentifacts. Some of the artifacts used are traditionally built houses, station sheds, white painted rocks tennis court and white painted rocks. This shows that the people of Australia relied mostly on traditionally built houses. There is a safe place set for the mission children, traditional dances; there is a school and highly ranked leaders this acts as a sociofacts in the movie. It shows that there were most protected missions

Thursday, January 23, 2020

Alternative Fuel for Airplane Essay -- Energy, Sustainable Fuel

One of the most significant current discussions in sustainable aviation is alternative fuel for airplane, which is a serious argument; however, big question is that efforts to produce a more sustainable fuel to power aircraft are technically and ethically feasible. This paper going to investigate and show there is no alternative fuel to power aircraft in this time. The fuel using by airplane is fossil fuel, which is Jet A1 by burning this fuel there are impact on the global warming the researcher investigate what is the problem with fossil fuel (Jet A1). As solve the fuel problem there are several alternatives have tested, that some of them are biofuel, Liquid Hydrogen, Fracking for Natural Gas and scher-Tropsch (F-T) fuels from fossil feedstocks. However to fund out the alternative fuel is sustainable .firstly defined term sustainability. There are numerous definitions for the word sustainable. White (2001, p.1) states that sustainability seeks to provide the best outcomes for the human and natural environments both now and into the indefinite future. In addition, Thompson and Sorvig( 2009) in their recent research paper found probably the simplest, widely used definition of sustainability is meeting the needs of today's population with-out diminishing the ability of future populations to meet their needs. The other hand Fresco and Kroonenberg (1992) states that the sustainability of natural ecosystems defined as the dynamic balance between natural inputs and outputs, modified by external events such as climatic change and natural disasters. (Bell and Morse, 2008) the researcher from all research fund out that the sustainability related what is human put the nature has to be try to have balance ever aspect and impact to natu... ...ccessful in aviation industry such as biofuel, Liquid Hydrogen, Fracking for Natural Gas and scher-Tropsch (F-T) fuels from fossil feedstocks. All the fuel has been test and some of the, has been used for long time but the all of the have got impact on environment and social which make unsustainable fuel. At last with those fuels CO2 emissions is not increasing and LH2 approximately putting three times the amount of water in the atmosphere than burning kerosene-type aviation fuel, which is water washes out of the atmosphere a lot faster than carbon dioxide that stays up for years. Fracking presses the water containing the tracking chemicals left underground to fill the spaces in the fractured rocks and may eventually flow into the local ground-water system, making it unsafe for drinking. This research show there is no alternative fuel in this time and technology.

Wednesday, January 15, 2020

Principles of Marketing Essay

The course content includes a study of the relationship between marketing and society, nature and functions of marketing, marketing management processes, marketing tools, the markets, and the consumers. Course Objectives The main goal of the course is to provide an overview of the basic principles underlying modern marketing theory and practice. It will provide participants with an understanding of the analysis that is necessary for taking marketing decisions, and the wide range of factors (and interactions of those factors) that need to be considered in the design of a marketing program. Students should come away with this course with an understanding of the marketing system and its role within the Malaysian economy and within an individual firm by studying how products and services are planned, priced, promoted, and distributed in order to satisfy consumers’ wants. Learning Outcomes Upon completion of the course, students should be able to: ? define and apply knowledge of the key marketing concepts. ? explain how marketing decisions are influenced by environment, trends and developments. ? discuss the factors influencing consumer behavior. Please dress decently and appropriately (according to university’s dress codes) when attending classes. ? Group projects ; Assignments There will be group projects and assignments. For group project, work together with your group members and at the end of the project your group members will assess your contribution to the project. You are expected to do a group presentation before submission of written copy during the semester. Assignments will be uploaded in UNIEC. In class assignments must be submitted on the specified date otherwise you may be penalized for late submission. If you encounter any problem to submit assignments on the specific date, you are required to inform the lecturer within 2 days of the specified date. For any type written assignments given, the format of the paper should be as follows: ? A cover page with your details – Name, Student ID and Sections ( as registered in CMS) ? Font: Time New Roman , size 12 with 1. 5 spacing ? Include a reference page for every assignment that you submitted. ? Forums Students are required to participate in ALL 3 forums posted by the Course Leader and marks will be assigned based on the quality of the discussion. ? Accessing/ Checking UNIEC Virtual It is utmost important for students to access and check their UNIEC Virtual for any updates and information pertaining to the course regularly throughout the semester. Ignorance is NO EXCUSE. Examination Format Final examination will be a three hours-examination. The exam will evaluate your level of understanding and knowledge acquired in this course. The question formats may consist of multiple choice, true-false, short essays, and case-based problems. Week Topics Covered Overview 1 2 3 4 Topic 1: Marketing: Managing Profitable Customer Relationship Topic 2: The Marketing Environment and the Marketing Information Topic 3: Consumer Markets and Consumer Buyer Behavior Topics/Activities Remarks/ Deadlines Introduction. Class activities: – Getting to know. – Overview of course plan. Marketing: Managing Profitable Customer Relationship ? Definitions of marketing ? Basic concepts of marketing ? Evolutions of marketing ? Relationship marketing ? Marketing strategy and the marketing mix ? Marketing Challenges in the future Read. The Marketing Environment and Marketing Information ? Company’s Microenvironments ? Company’s Macroenvironments ? Marketing research process Read: Forum 1 ? Kotler: Chapter 3 ; 4 ? Real Marketing 4. 2 ‘Tracking consumers on the Web: Smart targeting or a little creepy’. p 151 Class activities: ? Discuss reading materials Topic 2 ? Discuss ‘Prius: Leading a Wave of Hybrids’ case Consumer Markets and Business Market ? Consumer Buying Behavior ? Consumer Decision-making Process ? Factors Affecting Consumer Buying Behavior ? The Organizational Market ? The Organizational Buying Process.

Tuesday, January 7, 2020

Potassium-Argon Dating Methods K-Ar and Ar-Ar Dating

The potassium-argon (K-Ar) isotopic dating method is especially useful for determining the age of lavas. Developed in the 1950s, it was important in developing the theory of plate tectonics and in calibrating the geologic time scale. Potassium-Argon Basics Potassium occurs in two stable isotopes (41K and 39K) and one radioactive isotope (40K). Potassium-40 decays with a half-life of 1250 million years, meaning that half of the 40K atoms are gone after that span of time. Its decay yields argon-40 and calcium-40 in a ratio of 11 to 89. The K-Ar method works by counting these radiogenic 40Ar atoms trapped inside minerals. What simplifies things is that potassium is a reactive metal and argon is an inert gas: Potassium is always tightly locked up in minerals whereas argon is not part of any minerals. Argon makes up 1 percent of the atmosphere. So assuming that no air gets into a mineral grain when it first forms, it has zero argon content. That is, a fresh mineral grain has its K-Ar clock set at zero. The method relies on satisfying some important assumptions: The potassium and argon must both stay put in the mineral over geologic time. This is the hardest one to satisfy.We can measure everything accurately. Advanced instruments, rigorous procedures and the use of standard minerals ensure this.We know the precise natural mix of potassium and argon isotopes. Decades of basic research has given us this data.We can correct for any argon from the air that gets into the mineral. This requires an extra step. Given careful work in the field and in the lab, these assumptions can be met. The K-Ar Method in Practice The rock sample to be dated must be chosen very carefully. Any alteration or fracturing means that the potassium or the argon or both have been disturbed. The site also must be geologically meaningful, clearly related to fossil-bearing rocks or other features that need a good date to join the big story. Lava flows that lie above and below rock beds with ancient human fossils are a good—and true—example. The mineral sanidine, the high-temperature form of potassium feldspar, is the most desirable. But micas, plagioclase, hornblende, clays, and other minerals can yield good data, as can whole-rock analyses. Young rocks have low levels of 40Ar, so as much as several kilograms may be needed. Rock samples are recorded, marked, sealed and kept free of contamination and excessive heat on the way to the lab. The rock samples are crushed, in clean equipment, to a size that preserves whole grains of the mineral to be dated, then sieved to help concentrate these grains of the target mineral. The selected size fraction is cleaned in ultrasound and acid baths, then gently oven-dried. The target mineral is separated using heavy liquids, then hand-picked under the microscope for the purest possible sample. This mineral sample is then baked gently overnight in a vacuum furnace. These steps help remove as much atmospheric 40Ar from the sample as possible before making the measurement. Next, ​the mineral sample is heated to melting in a vacuum furnace, driving out all the gas. A precise amount of argon-38 is added to the gas as a spike to help calibrate the measurement, and the gas sample is collected onto activated charcoal cooled by liquid nitrogen. Then the gas sample is cleaned of all unwanted gasses such as H2O, CO2, SO2, nitrogen and so on until all that remains are the inert gasses, argon among them. Finally, ​the argon atoms are counted in a mass spectrometer, a machine with its own complexities. Three argon isotopes are measured: 36Ar, 38Ar, and 40Ar. If the data from this step is clean, the abundance of atmospheric argon can be determined and then subtracted to yield the radiogenic 40Ar content. This air correction relies on the level of argon-36, which comes only from the air and is not created by any nuclear decay reaction. It is subtracted, and a proportional amount of the 38Ar and 40Ar are also subtracted. The remaining 38Ar is from the spike, and the remaining 40Ar is radiogenic. Because the spike is precisely known, the 40Ar is determined by comparison to it. Variations in this data may point to errors anywhere in the process, which is why all the steps of preparation are recorded in detail. K-Ar analyses cost several hundred dollars per sample and take a week or two. The 40Ar-39Ar Method A variant of the K-Ar method gives better data by making the overall measurement process simpler. The key is to put the mineral sample in a neutron beam, which converts potassium-39 into argon-39. Because 39Ar has a very short half-life, it is guaranteed to be absent in the sample beforehand, so its a clear indicator of the potassium content. The advantage is that all the information needed for dating the sample comes from the same argon measurement. Accuracy is greater and errors are lower. This method is commonly called argon-argon dating. The physical procedure for 40Ar-39Ar dating is the same except for three differences: Before the mineral sample is put in the vacuum oven, it is irradiated along with samples of standard materials by a neutron source.There is no 38Ar spike needed.Four Ar isotopes are measured: 36Ar, 37Ar, 39Ar, and 40Ar. The analysis of the data is more complex than in the K-Ar method  because the irradiation creates argon atoms from other isotopes besides​ 40K. These effects must be corrected, and the process is intricate enough to require computers. Ar-Ar analyses cost around $1000 per sample and take several weeks. Conclusion The Ar-Ar method is considered superior, but some of its problems are avoided in the older K-Ar method. Also, the cheaper K-Ar method can be used for screening or reconnaissance purposes, saving Ar-Ar for the most demanding or interesting problems. These dating methods have been under constant improvement for more than 50 years. The learning curve has been long and is far from over today. With each increment in quality, more subtle sources of error have been found and taken into account. Good materials and skilled hands can yield ages that are certain to within 1 percent, even in rocks only 10,000 years old, in which quantities of 40Ar are vanishingly small.