Thursday, March 26, 2020
How to Write Hook For Essay and What to Consider
When it comes to essay writing, students often experience lots of struggles. The writing process might be challenging by itself, but it's not the only challenge students face. They also need to stick to a certain writing style, which means paying a lot of attention to the details. They also need to make their writing not simply informative but also interesting to read - and this means catching the readers' attention and holding it until the very end of an essay. The latter is nearly impossible to achieve without coming with a proper essay hook. What is a hook in an essay? A hook in essay is its first (or first two) sentences. It is a part of an introduction, so it has to relate to the essay in general. But what's even more important is that it has to catch the readers' attention at the same time. If a person who reads the first couple of sentences decides they want to continue reading, this means that the hook is written properly. Why is an essay hook so important? Before you start asking yourself "How to write a hook for an essay?", you probably might ask "Why do I need to write one?". Why catching the readers' attention so quickly is so important? Isn't an essay just a task my professor assigned? Wouldn't they be interested in reading it anyway? Sure, as it's about completing an assignment, your professor is definitely going to read this. But this still doesn't mean you shouldn't do your best to impress them with a hook. While the main goal of an essay is to give information about a certain topic, this still doesn't mean this essay should be dull and boring. Professors give you writing assignments not only because they want you to learn how to research, how to formulate your opinion, and how to defend it. They also want you to learn how to write compelling texts that can engage the audience. You might not need to write any academic papers once you graduate but there's still a chance you'll need to write something, be it articles, books, presentations, and cover letters. In any of those cases catching the readers' attention right from the start is crucial - so you'd better start learning how to do so while you're still in college. While first one or two sentences might not yet tell the readers what your essay is about, they do make an impression, even if it's the first one. This impression might change as they read the rest of your essay, but it might not as well. So work hard to create that good first impression. How to write a good hook for an essay? Now that you know why coming up with a strong hook is so important, you might be a bit more eager to learn how to make a hook for an essay. Of course, it isn't easy. There are different types of hooks - but before you even start choosing some of them, you need to know for sure what your essay is going to say. So ask yourself some questions first: Which type of essay do I need to write? Who's my audience? Which guidelines do I have? Am I able to choose a style or a tone or do I have specific requirements about that? What would the structure of my essay be? If you need to craft a serious essay, starting it with an anecdote hook wouldn't be appropriate. If you need to write a good hook for an analytical essay, choosing some personal facts not related to the topic won't do. That's why answering the questions listed above will make it much easier for you. Types of hooks If you look at hooks and attention grabbers examples, you'll see that all the hooks are different. To make it easier for you, we want to offer you a list of the most commonly used hooks. 1. Quotes An appropriate quote makes your essay look more sophisticated. However, not any essay should start with a quote. For example, if you check out argumentative essay hook examples, you'll see that many of them are quotes from certain authoritative and influential people. Such quotes also suit analytical essays well as they offer some interesting information from a relevant source. When it comes to essays about books, authors, stories, literature reviews, and so on, you can also use book quote as a hook. This will make your essay sound fresher. However, in any case, you should avoid quotes that are very common - otherwise, your writing might look cliche, not fresh. 2. Statistics Those, who want to learn how to write a good hook for an argumentative essay, might want to pay special attention to this part. Using statistical data as a hook helps to create interest. It also shows that you did your research well. Statistical data works best with essays that are research-heavy and serious. But it won't work with personal ones, literature ones, descriptive ones, etc. 3. Interesting facts One of the most common types of hooks. It works well with most of the essays and helps to surprise the readers with information that might be new and fresh to them. Of course, this information has to be relevant to essay's topic somehow. However, in some cases you might try stating a fact that doesn't seem to relate to your essay, tying it to the topic right after and surprising your readers even more. But remember to be very careful with this. 4. Misconception revealing People like to stick to their beliefs - but they also like to be taught something new. So when you start your essay with revealing that some of the common truths are actually false, you'll kill two birds with one stone. First, you'll provoke an emotional reaction in your readers. Second, you'll indeed teach many of them something new. 5. Questions If a question is constructed well enough and is provoking by its nature, it will help you hook the readers. They would want to read the rest of your essay to find the answer to that question. However, you should be careful here. Keep in mind that questions that can be answered "Yes" or "No" aren't very effective. Pick questions carefully as well: they should be provocative enough but not offensive, and encourage the readers to think critically. 6. Anecdotes Telling anecdotes isn't equal to making your essay look funny - as long as they are appropriate, of course. A properly chosen anecdote sets the right mood, making the readers react more positively to the rest of your essay as well. Just don't forget that this would work for essays that are more personal. Also, avoid using anecdotes in the admission essays - the admission board might appreciate them but also might not react to them well. Don't take a risk when the result is so important to you. 7. Scenes When you're writing a personal essay, a descriptive one, and so on, you can be a bit more creative. A good way to show your creativity is to create a picture with the help of your writing. This could be a scene where the events of an essay took place or some features of a character or a person you're writing about. 8. Thesises Sometimes it's also good to get straight to the point, especially if your essay's topic is serious. Stating your thesis in the first sentence is very effective if the thesis is formulated right. The readers would be interested in reading the rest of the essay to find out how did you come up with this idea. Now that you know which types of hooks exist, it would be much easier for you to choose a certain type to start your essay writing with. Take some time to think, come up with a few ideas, choose wisely - and you'll have an impressive essay hook faster than you imagined!
Friday, March 6, 2020
Chicago vs. Turabian (3 Key Questions)
Chicago vs. Turabian (3 Key Questions) Chicago vs. Turabian (3 Key Questions) There are many referencing systems used in academic writing. And many of these systems look similar at first glance. But possibly the most confusing are ââ¬Å"Chicagoâ⬠and ââ¬Å"Turabianâ⬠style referencing. How do they differ? And does it matter which one you use? Let us explain. 1. What Are Chicago and Turabian Referencing? When people refer to ââ¬Å"Chicago referencing,â⬠they mean the citation style set out in The Chicago Manual of Style. Sometimes known as CMoS for short, this style guide is published by the University of Chicago Press and aimed at professional scholars and publishers. ââ¬Å"Turabian referencing,â⬠meanwhile, refers to the citation style set out in Kate L. Turabianââ¬â¢s Manual for Writers of Research Papers, Theses, and Dissertations. But this is actually a simplified version of the citation style in CMoS, aimed specifically at students and focused on academic writing. Style manuals published by the University of Chicago Press. 2. How Do Chicago and Turabian Differ? In practice, there are no real differences between ââ¬Å"Chicagoâ⬠and ââ¬Å"Turabianâ⬠referencing. You can see this if you look at the examples of Turabian and Chicago book citations from the CMoS site: Chicago 1. Zadie Smith, Swing Timeà (New York: Penguin Press, 2016), 315ââ¬â16. Turabian 2. Katie Kitamura, A Separation (New York: Riverhead Books, 2017), 25. As you can see, the format here is identical in each case. The same is true for other source types. There are some differences between the two style guides as a whole. But these simply reflect the Turabian style guideââ¬â¢s focus on students rather than publishers. As such, the Turabian guide: Is significantly shorter than the full CMoS due to not including information about preparing book manuscripts and journal articles for publication Contains a section on how to write and structure a research paper Features less information on grammar, spelling, and word usage Turabian is therefore much better if you are looking for specific advice on writing a college paper rather than a general style guide. 3. Which Referencing System Should I Use? The Chicago and Turabian style guides are tailored to different audiences, so you may want to use the one most suited to your needs. However, both style guides recommend the same approach to referencing sources, so it does not make a difference from this perspective. In other words, advice on how to cite a source in Chicago referencing will also apply to Turabian referencing. And advice on Turabian referencing will apply to Chicago style, too. The more important question is which version of Chicago/Turabian referencing youââ¬â¢re using: Notes and bibliography style, which requires referencing sources in footnotes as well as giving publication information in a bibliography. Authorââ¬âdate style, which uses in-text citations plus a reference list. As a general rule, footnote referencing is more common in the humanities, while authorââ¬âdate referencing is used in the physical and social sciences. However, make sure to check your schoolââ¬â¢s style guide or ask a professor if you are not 100% sure about which approach to use in your work.
Wednesday, February 19, 2020
International Operational and Logistical Strategies Essay
International Operational and Logistical Strategies - Essay Example They include: 1) Integrating all system transactions with a similar system 2) Sharing common data and practices across the entire business enterprise 3) Production of relevant information that can be used during the process of making decisions. There are a number of benefits associated with Enterprise Resource Planning and they include: Automation of business processes which enhances performance. For instance, the system indicates the consequences of all the decisions. Reduces costs by reducing levels of inventory within the business processes. Ensures free flow of information among all business processes. Improves communication throughout the organization. ERP systems that are highly customized can deliver better opportunities for competitive advantage. Improves the relationship between the organization and its stakeholders. Provides easier import and export of data. ERP has a number of components that enable it work properly and improve performance among different business processe s. ... However, there are a number of disadvantages associated with such systems. They include: High costs of switching to and from ERP systems Creates unnecessary dependencies Requires extensive training which may have high cost implications Unsuitable for production planning and supply chain management 2. Supply Chain and Application of supply chain and logistical tools and techniques This section gives an analysis of the operations management of Apple Inc with regards to it production, marketing, supply chain management and sale of its products. An assessment of the company will be done with respect to its background information, history and the types of goods and services that it sells in the industry that it operates. The supply chain characteristics of the firm will also be highlighted and evaluated so as to offer postulations on what ought to be done so as to increase its profitability (Apple Inc, 2012). Aspects relating to its competitive advantage in the global business, production processes and customer satisfaction will be highlighted. This means that the technology used and commitment to quality and excellence will as also be assessed. This is aimed at ascertaining the operational planning of the company with regard to major organizational models that enhance efficacy and success. History and Background of Apple Inc. Apple Inc. was initially called Apple Computer Inc, it is an internationally recognized company that produces and sells computers, computer software and other forms of consumer electronics such as iPods, iPads and iPhones. The firm is diversified and offers mobile communication and media devices as well as selling related software. It is an American corporation with its headquarters in Cupertino, California. The company has over 250 retail
Tuesday, February 4, 2020
How, if at all, are 'Thatcherism' and 'New Labour' interrelated Essay
How, if at all, are 'Thatcherism' and 'New Labour' interrelated - Essay Example He was the first serious politician of the left to appreciate the legacy of Mrs. Thatcher and was able, unlike his predecessors, to operate in the post-Thatcher world. Blair identified where the new centre was and quickly occupied it, leading to many branding him as a ââ¬Ëcloset Toryââ¬â¢. However, we have to decide whether he merely stripped down socialism to make it acceptable in post-Thatcher Britain or whether he has taken certain social democratic values and added them to a variant of free market neo-liberalism that was prevalent in Thatcherism. Although there seems to be a significant continuation of policy in many areas, this may have been necessary for Labour to win back lost electoral ground by pursuing a large degree of conformation to the highly successful Thatcherite campaigns. It is therefore necessary to compare Thatcherite and New Labour policies before we can say how interrelated the two ideologies are. Is the ââ¬ËThird Way merely a more compassionate version of Thatcherism or is it a new ideology, combining traditional social democratic values with neo-liberal tendencies that have grounded themselves in British politics? Free trade ideology developed out of Adam Smithââ¬â¢s distinctive contribution to the eighteenth-century European Enlightenment and reached its apogee in the Liberalism of William Gladstone, and so forth. (3) The importance of Thatcherism, therefore, lay not in the novelty of its ideas but in the context of their operation in the late 1970s and 1980s. Thatcherism as an ideology stood for a limited but firm government, the rolling back of the welfare state, the end of consensus politics and a staunchly anti-European and independent attitude on many vital issues. (Adams 1998, p. 95) The question of just how successful the Thatcher revolution was in making Britain a better place is a matter of fierce controversy. How
Monday, January 27, 2020
Removal of TBP From Aqueous Phase
Removal of TBP From Aqueous Phase ABSTRACT PUREX process involves the use of 30% TBP in Dodecane to extract the fissile materials. However, due to mutual solubility some amount of TBP gets transferred into the aqueous phase. This transferred TBP leads to many environmental problems. Removal of this TBP from aqueous phase is of prime concern which can be done by contacting it with an organic diluent. UNIFAC and Uniquac methods have been used to describe Liquid Liquid equilibrium (LLE) in TBP-Diluent-HNO3 system. Uniquac and UNIFAC Group interaction parameters have been founded to fit the experimental data. Various metal nitrates are also present in the organic phase. These metal nitrates affect the solubility of TBP in aqueous phase. Metal nitrates like Sodium and Calcium nitrate have also been incorporated in model to find out interaction parameters in the presence of metal nitrates like Sodium and Calcium. The obtained parameters will be useful in predicting LLE for the above system and will aid in safe disposal of nuclear w aste. INTRODUCTION Reprocessing of the used nuclear fuel has always been carried out to reduce the volume of high level radioactive waste and also for their safe disposal. The plutonium uranium extraction (PUREX) process is widely used for reprocessing. This process uses 30% Tri-n-butyl phosphate (TBP) in an inert paraffinic diluent for the separation of uranium and plutonium from the aqueous phase containing nitric acid. Mutual solubility of aqueous and the organic phase leads to the transfer of certain finite amount of TBP in aqueous phase. This transferred TBP decomposes very slowly in the presence of water and nitric acid by hydrolysis to lower organo-phosphate acids at normal operating temperatures leading to many environmental problems. Removal of such dissolved TBP is of direct interest in reprocessing processes as this would enable manifold evaporation of aqueous stream without harming the environment. Various metal elements are also present in the highly radioactive liquid waste solution in ni trate form. The salting out of TBP takes place in the presence of these inorganic nitrates in the aqueous phase. Studies in the presence of various metal nitrates will aid in efficient removal of TBP from aqueous phase. In order to predict the extent to which TBP could be removed from aqueous phase, a model must be developed to predict the phase behaviour. Such models can be used for designing remediation projects. Estimation of activity coefficients of the mixtures is important for predicting the phase behaviour In order to predict the extent of mass transfer, chemical compositions of the two-phase system at equilibrium needs be predicted first. Investigators have used various models to predict the LLE. Cheng et al. have calculated the thermodynamic equilibrium constant for the system HNO3-TBP-n-C7H16.The activity coefficient of nitric acid was calculated using Pitzerââ¬â¢s equation and those of the components in organic phase was derived from experimental data. Ding et al. have calculated the activity coefficient for 20 binary and 7 ternary systems composed of nC6H14, nC7H16, nC8H18, C6H6, cy-C6H6, CCl4, CHCl3, (C4H9)3PO4 and UO2(NO3)2.2((C4H9)3PO4) using head-space gas chromatography. The results are compared with Scatchard-Hilderbald, NRTL and UNIQUAC models. Li et al. has calculated the Vapor-Liquid and Vapor-Liquid-Liquid equilibria of 19 tributyl phosphate systems. Aqueous phase activity coefficients are calculated using Pitzerââ¬â¢s equation. UNIFAC method is used for correlating and predicting the data in organic phase. All the above authors have done work on the systems in the absence of metal nitrates. Intera ction parameters for systems in the presence of metal nitrates have not been reported yet. The objective of the present work to find the UNIFAC and Uniquac group interaction parameters regressed for the experimental data for three systems. These systems comprise of TBP-diluent-HNO3, TBP-diluent-HNO3-NaNO3, TBP-diluent-HNO3-Ca(NO3)2. These parameters will aid in predicting the equilibrium and calculating the number of stages for designing the equipment to remove dissolved TBP. LIQUID LIQUID EXTRACTION EQUILIBRIA The organic phase consists of (1) diluent (NPH), (2) TBP, (3) TBP.HNO3 The dissolution of TBP in NPH and HNO3 can be represented by eq 1and eq 2. xTBPorg (TBP)x org(1) TBPorg + H+aq + NO3-aq HNO3.TBPorg (2) where the subscripts aq and org denote the species in the aqueous and organic phase. The thermodynamic equilibrium constant for reaction (2) can be calculated as a HNO3.TBP(org) a 3 (3) K == a H+(aq) a NO3-(aq) a TBP(org)a2à ±HNO3 a 2 x3 à ³3 K = (4) mà ±2 à ³Ã ±2 x2 à ³2 where a is the thermodynamic activity, x is the mole fraction of the component in the organic phase and à ³ is the corresponding activity coefficient. mà ± is the mean molality concentration of electrolyte in the aqueous phase and à ³Ã ± is the mean ionic activity coefficient of corresponding electrolytes. Similar procedure as described by Chen et al has been used to predict the LLE with one extraction reaction. Mean ionic activity coefficient of electrolytes Pitzer equation is used to calculate the mean ionic coefficient of HNO3 in all the cases and of Ca(NO3)2, NaNO3 in the presence of metal nitrates. lnà ³Ã ± = Aà à ¤+ m (5) where b=1.2, à ±=2, AÃâ°Ã ¸ = 0.391. I is the ionic strength of solution. The Pitzer parameters for HNO3, NaNO3 and Ca(NO3)2 are listed in Table 1. Activity Coefficients of components in organic phase can be estimated using UNIFAC and Uniquac equation. UNIFAC EQUATION In a multi-component mixture, the UNIFAC equation for the activity coefficient of component i is given by Equation 3.1. ln à ³i = ln à ³iC +ln à ³iR (6) The combinatorial part of the UNIFAC model considers the shape and the size of the molecules in the mixture. ln à ³iC = 1 ââ¬â Ji + ln Ji ââ¬â 5qi( ln (Ãâ°Ã ¸i /ÃËi )+ 1 ââ¬â (Ãâ°Ã ¸i /ÃËi ) ) (7) where, Ji = ( Ãâ°Ã ¸i /xi) The molecule volume fraction Ãâ°Ã ¸i , and the molecule surface area fraction ÃËi , are given by respectively, Ãâ°Ã ¸i = xi*ri/âËâj xj*rj and ÃËi = xi*qi/âËâj xj*qj (8) In Equations (3.3), relative molecular volume rs, and relative molecule surface area q, are given by ri = âËâk à ½k(i)* Rk and qi = âËâk à ½k(i)* Qk (9) The quantity vk is the number of subgroups of type k in a molecule of species i. ri is the relative molecular volume and qi is the relative molecular surface area. Group parameters Rk and Qk are reported by Fredenslund et al. The residual part of the activity coefficient is given by Equation 10. ln à ³iR = âËâk à ½k(i )[ ln à ââ¬Å"k ââ¬â ln à ââ¬Å"k(i) ] (10) where, k denotes each group in the mixture à ½k(i ) is the number of groups of type k in molecule i à ââ¬Å"k is the group residual activity coefficient à ââ¬Å"k(i) is the residual activity coefficient of group k in a reference solution containing only molecules of type i. The group residual activity coefficient is found by Equation 11. ln à ââ¬Å"k = Qk [ 1- ln(âËâm ÃËm ÃËmk) âËâm (ÃËm ÃËkm /âËân ÃËn ÃËnm ) ] (11) where, Qk is a group surface area parameter ÃËm is the area fraction of group m ÃËmn is the group energy of interaction parameter ÃËmn = exp(-amn + bmn/T) (12) Where, amn and bmn is the group-interaction parameter. T is the temperature Group assignment as proposed by Chen et al. has been followed. C7H16, TBP and TBP.HNO3 has been broken down into groups CH3, CH2, (CH2O)3PO, HNO3.(CH2O)3PO. Group volume and surface parameters for above groups have been reported by Cheng et al. The UNIQUAC model thus consists of two terms: a combinatorial or entropic term, a residual or enthalpic term. The combinatorial and the residual terms are identical to the terms used in the traditional UNIQUAC equation. The combinatorial, entropic term is ln à ³iC = ln(Ãâ°Ã ¸i/xi) +1 (Ãâ°Ã ¸i/xi) ââ¬â (z/2)*qi [ ln(Ãâ°Ã ¸i/ÃËi) + 1- (Ãâ°Ã ¸i/ÃËi) ] (13) z = 10 is the co-ordination number. xi is the mole fraction, Ãâ°Ã ¸i is the volume fraction, ÃËi and is the surface area fraction of component i. Ãâ°Ã ¸i = xi*ri/âËâj xj*rj and ÃËi = xi*qi/âËâj xj*qj (14) ri and qi are volume and surface area parameters for component i. The residual, enthalpic term is ln à ³iR = qi [ 1 ââ¬â ln( âËâk ÃËkÃËki) âËâk ÃËkÃËik/(âËâl ÃËlÃËlk) (15) The parameter ÃËki is given by ÃËki = exp(-uki-uii/T) (16) uki and uii are interaction energy parameters. Uniquac r and q parameters for C7H16, TBP and TBP.HNO3 have been reported by Li et al. RESULTS AND DISCUSSION EQUILIBRIUM PREDICTION. The following equations can be used to predict equilibrium x1 + x2 + x3 = 1 (17) x20 = (x2 + x3)/( x1 + x2 + x3) (18) x3 à ³3 K = (19) mà ±2 à ³Ã ±2 x2 à ³2 à ³2 and à ³3 values have been calculated using UNIFAC and Uniquac equation. Knowing equilibrium constant K, mà ± calculated mole fractions can be found out., The group interaction parameters are regressed by Least Square Technique to minimize the error between experimental and calculated mole fraction values. The obtained regressed group interaction values in the absence of metal nitrates, in the presence of NaNO3 and Ca(NO3)2 using Uniquac and UNIFAC have been listed in Table. The standard absolute deviation of components in the organic phase is listed in table. The experimental and calculated values of mole fractions have been reported graphically in fig CONCLUSION The experimental mole fraction data were correlated using UNIFAC and Uniquac model. The Uniquac and UNIFAC group interaction parameters are capable of predicting mole fraction for TBP-Diluent-HNO3 in the absence and presence of metal nitrates. Thus these can be effectively used to predict the equilibrium for the removal of dissolved TBP in Nuclear engineering. UNIFAC gives a better prediction as compared to Uniquac in all the cases LIST OF TABLES Pitzer parameters for calculation of mean ionic activity coefficient Uniquac Group interaction parameters in the absence of metal nitrates Unifac Group interaction parameters in the absence of metal nitrates Uniquac Group interaction parameters in the presence of Sodium metal nitrate Unifac Group interaction parameters in the presence of sodium nitrate Uniquac Group interaction parameters in the presence of calcium metal nitrate Unifac Group interaction parameters in the presence of calcium nitrate Standard absolute deviations between predicted and experimental mole fraction of extracted complexes Table 1. Pitzer parameters for calculation of mean ionic activity coefficient Components à ²o à ²o HNO3 0.1119 0.3206 0.001 NaNO3 0.0068 0.1783 -0.0007 Ca(NO3) 0.2108 1.409 -0.02014 Table 2. Uniquac Group interaction parameters in the absence of metal nitrates a (m,n) NPH TBP HNO3.TBP NPH 0 2.05741 0.679624 TBP -3.04549 0 -1.1645 HNO3.TBP -1.03328 1.143979 0 b (m,n) NPH TBP HNO3.TBP NPH 0 1.007842 0.999125 TBP 0.983532 0 1.095824 HNO3.TBP 0.993173 1.019649 0 Table 3. Unifac Group interaction parameters in the absence of metal nitrates a (m,n) CH2 CH3 (CH2O)3PO HNO3(CH2O)3PO CH2 0 0 2.56180892 -48.1996 CH3 0 0 2.56180892 -48.1996 (CH2O)3PO -5.15816 -5.15816 0 -6.13375 HNO3(CH2O)3PO -2.57271 -2.57271 34.781685 0 b (m,n) CH2 CH3 (CH2O)3PO HNO3(CH2O)3PO CH2 0 0 0.997309 1.126187 CH3 0 0 0.997309 1.126187 (CH2O)3PO 1.016819 1.016819 0 1.131422 HNO3(CH2O)3PO 1.015345 1.015345 0.890301 0 Table 4. Uniquac Group interaction parameters in the presence of Sodium metal nitrate a (m,n) NPH TBP HNO3.TBP NPH 0 -1.82623 6.863001 TBP 0.87821 0 0.552002 HNO3.TBP 1.380676 2.272663 0 b (m,n) NPH TBP HNO3.TBP NPH 0 0.990771 1.019671 TBP 0.999592 0 0.998537 HNO3.TBP 1.001281 1.004269 0 Table 5. Unifac Group interaction parameters in the presence of sodium nitrate a (m,n) CH2 CH3 (CH2O)3PO HNO3(CH2O)3PO CH2 0 0 0.742770 -0.6378 CH3 0 0 0.742770 -0.6378 (CH2O)3PO 1.096426 1.096426 0 -0.373895 HNO3(CH2O)3PO 0.748111 0.748111 -0.20966206 0 b (m,n) CH2 CH3 (CH2O)3PO HNO3(CH2O)3PO CH2 0 0 1.000835 1.005434 CH3 0 0 1.000833 1.005434 (CH2O)3PO 0.99968 0.999688 0 1.004477 HNO3(CH2O)3PO 1.000817 1.000818 1.003927 0 Table 6. Uniquac Group interaction parameters in the presence of Calcium metal nitrate a (m,n) NPH TBP HNO3.TBP NPH 0 0.3249 -0.4026 TBP 0.95221 0 -1.40706 HNO3.TBP 1.168545 1.39797 0 b (m,n) NPH TBP HNO3.TBP NPH 0 0.997878 0.99529 TBP 0.999836 0 0.99200 HNO3.TBP 1.00058 1.000138 0 Table 7. Unifac Group interaction parameters in the presence of calcium nitrate a (m,n) CH2 CH3 (CH2O)3PO HNO3(CH2O)3PO CH2 0 0 5.9429 2.14979 CH3 0 0 5.9429 2.14979 (CH2O)3PO 2.6932 2.6932 0 -2.59369 HNO3(CH2O)3PO 3.8889 3.8889 3.8740 0 b (m,n) CH2 CH3 (CH2O)3PO HNO3(CH2O)3PO CH2 0 0 0.9839 0.99622 CH3 0 0 0.9839 0.99622 (CH2O)3PO 0.99447 0.99447 0 1.011186 HNO3(CH2O)3PO 0.990612 0.990612 0.990633 0 Table 8. Standard absolute deviations between predicted and experimental mole fraction of extracted complexes. System Ãâ x (Uniquac) Ãâ x (Unifac) HNO3/TBP/Diluent 0.016 0.0051 HNO3/TBP/Diluent/NaNO3 0.0435 0.0429 HNO3/TBP/Diluent/Ca(NO3)2 0.015 0.0051
Sunday, January 19, 2020
According to Paul Cezanne Essay
Paul Cezanneââ¬â¢s paintings are regarded today as being of considerable importance to the development of modern art. Cezanneââ¬â¢s use of colour as tone and his heavy interest in the formal elements of composition paved the way for artists following on from him to question what they were perceiving and their ability to visually represent what they saw through painting. This essay will be examining the influence that Paul Cezanne had on Cubism and how this elevated the picture into an autonomous object rather than a mere representation of nature. The French Post-Impressionist painter Paul Cezanne, although heavily ignored by the mainstream art sphere centered within Paris, had a considerable impact on Cubism as he laid out the fundamental ideas from which the cubists would create their works. One of the main key points that was central to the cubists was faceting, this reduction of form within the external world and transforming them to geometrical facets, ââ¬ËNature should be treated as cylinders, spheres and cones.ââ¬â¢. See more: Examples of satire in adventures of huckfinn essay Cezanneââ¬â¢s manner of depicting reality with inaccuracy and multiple viewpoints divorced itself from the laws of perceptive construction and allowed him to interpret what he saw in a subjective way, he wasnââ¬â¢t interested in merely imitating what he saw onto the canvas but rather to re-think the conventions which restrict traditional painting. A clear departure from traditional painting as a representational phenomenon has taken place, itââ¬â¢s no longer mimetic of nature or reality but rather holds its own reality within itself and painting and art in general is made autonomous through Cezanneââ¬â¢s unique approach. Where other painters saw transient effects of light Cezanne had the ability to perceive geometric structures and thus from his search for underlying structure of composition came Cubism and then Abstraction. In the impressionist movement, and other predecessors to cubism and post-impressionism, artists werenââ¬â¢t concerned in dealing with matters of inner meaning within their paintings, they were simply responding to what they saw which in turn gave little for the viewer to think about. It is here that we see Cezanneââ¬â¢s more conceptual manner of depicting reality by breaking things into obscure shapes and abstracted form, he projects his inner emotion and consciousness onto the canvas to represent a state of mind, ââ¬ËThe painterââ¬â¢s idea cannot be conceived apart from the means he uses, for it is meaningful only so far as it is embodied in those means, and the deeper his idea the more complete they must be. I am unable to distinguish between my feelings for life and my way of transposing it. A painting must carry all its meanings within itself, and impose it on the viewer before he identifies the subject matter.ââ¬â¢. This parallel of representing nature and self by use of facets and high-keyed colour (colour as a subjective device) is something thatââ¬â¢s echoed throughout the works of the cubists, specifically the initial stages of this movement. It seems from this point onwards the painting has become a picture object, itââ¬â¢s removed from the shallow confines of our perception and begins to contribute to reality by adding other aspects and elements, ââ¬Ë He was, in fact, the first Post-Impressionist to make, as did the Pointillists and eventually the cubists, as structural analysis of nature, producing an art of the mind concerned with emotional apprehension of formal qualities in mountains, women or onions and totally unconcerned with the evanescent effects of light, shade and atmosphere.ââ¬â¢ . This manner of painting had seeped into the consciousness of Pablo Picasso and George Braque, although they had obviously added their own elements to form their own individual styles Ceza nne had laid out the basis from which the cubists could build upon. Although Cubism can be categorised into three key phases: Analytical, Hermetic and Synthetic, it is all somewhat representational of reality. Pushed and stretched to its very limits reality has been distorted and forms are no longer instantly apparent, the viewer must project apart of themselves in order to make sense of what is happening within the painting. From the painters view the cubists applied an aspect of analysis in their paintings by which forms became increasingly fragmented, this way of depicting objects, landscapes and people was similar to Cezanneââ¬â¢s work in the way he represented nature. He was looking beyond the mere surface and impressions which met his gaze and focussed on the inner structures that made up things around him, this of course implies careful consideration and a process of analysis. This is something which resonated with Picassoââ¬â¢s work and contributed to his painting Demoiselles dââ¬â¢ Avingon 1908, ââ¬ËHe took his cue in this partly from Cezanneââ¬â¢s efforts to fashion a way of painting that would lay bare ââ¬â or at least open up for exploration by the viewer ââ¬â the complex process of pictorial representationââ¬â¢. Upon looking at the works of Picassoââ¬â¢s Demoiselles dââ¬â¢ Avingon 1908 and even George Braqueââ¬â¢s Houses at Lââ¬â¢Estaque 1908, we can indicate a clear influence that is derived from Cezanneââ¬â¢s style of this alignment of nature and the artist. In Braqueââ¬â¢s painting we note a visible colour palette which has been simplified and the use of structure that has been used in order to re-create nature, all of which is comparable to Cezanneââ¬â¢s painting Mont Sainte-Victoire 1902-04. However, Braque has accentuated certain elements resulting in a more systematic , clean and simplified style, ââ¬ËYet unlike Cezanne, Braque pushes the juxtaposition of different perspectives to the point of contradiction, and underscores it with a quite arbitrary distribution of light and shade; rooflines fail to meet walls, spaces and solids are elided, buildings are stacked up against one another like playing cards, and in the absence of a horizon the landscape is compress ed into the space of a low relief.ââ¬â¢. (FOOTNOTE: Movements in Modern Art Cubism, David Cottington, pg. 22)We notice a clear direction towards further abstraction in terms of form and colour and as cubism progresses these abstractions are further emphasised until reality is barely visible and only signals and indications of things are implied to the viewer. In addition, Picassoââ¬â¢s painting held similar elements of Cezanneââ¬â¢s style and although his painting Demoiselles dââ¬â¢ Avingnon is regarded as more of a proto-cubist artwork in a way it planted the seeds of his style which would later blossom and carry the cubist movement. He is still referencing Cezanne in terms of geometric shapes, limited colours, the fusions between negative and positive shapes and also the arbitrary use of light as he sees fit. Moving away from Demoiselles dââ¬â¢ Avingnon and focussing on Cottage and Trees (La Rue-des-Bois) 1908, again we see a direct correlation in terms of style to Cezanneââ¬â¢s and even Braqueââ¬â¢s painting Houses at Lââ¬â¢Estaque, in terms of subject matter itââ¬â¢s quite similar; fragmented shapes are used to signify a landscape with houses and contorted trees, however this use of shapes is further abstracted from that of Cezanneââ¬â¢s and Braqueââ¬â¢s and again we see the use of colour being completely redundant in terms of imitating the world. The painting has become a complex of invented forms, singular viewpoints, accurate proportions and visual representation are no longer necessary, ââ¬ËPicasso independently emphasises each elemnt ââ¬â volume, line, plane, light and shade ââ¬â even at the expense of compositional unity. The effect is to maximise the dynamic effect of the painting.ââ¬â¢. The emancipation of pictorial elements of line and colour elevated the painting to the picture object, as these elements no longer needed to be used objectively to depict the reality in which we are all submitted to, rather the artists can form the basis of a painting from reality and meet it halfway through his use of representing the internal reality which he is mentally experiencing. Cezanne used a process of analysis and reflection in creating his work which then influenced the cubists to constitute their own individual reality and project it onto the canvas. The result being fragmented geometric shapes which accentuate certain elements of figures, subjective and limited use of colour and an overall less naturalistic representation of what is directly being observed, this in turn helped painters like the cubists to re think what they were painting and also to think of what painting in general could be.
Friday, January 10, 2020
Enviromental Issues
These are a few of many environmental issues that are faced in the Coastal Plains, the Western Cordillera, and the Arctic today. The Coastal Plains has many issues that need to be addressed. The Coastal Plains is a flat, low-lying area of land which is beside the sea coast.It stretches smoke along the Ignited States and Mexico. It varies in climate depending on the region. For example in the north, it is defined by snowy and cold winters although in the summer it is hot and humid. In the southern part of the coastal plains it is sub-tropical, which means the winters are usually mild and warm. One of the many environmental issues in the Coastal Plains is urban sprawl (overpopulation). The Texas plains has expanded in population by 1 19% from 1970-90. The consequences of this are a large amount of carbon oxide being emitted into the atmosphere caused by cars and factories.This also contributes to the climate change in the planet and global warming. Along with this, sea levels are risin g and tropical storms/hurricanes are becoming more apparent. A solution to this issue is less usage of cars. If we could use fewer cars and start using more public transportation such as bikes and buses, we could put less carbon dioxide into the environment. We can't fix the overpopulation issue but at least bringing awareness could possibly make a difference. Overall, the Coastal Plains is a beautiful area that needs to have these issues fixed or bringing more awareness to the public.The Western Cordillera is a region in North America with environmental issues that can affect us greatly in the future. The Western Cordillera goes along the west coast of North America. It contains numerous mountains that haven't been worn down by erosion. The climate is usually mild but mostly it is very wet. The issues the Western Cordillera is climate change and clear cutting. Climate change affects this region by impacting future water resources. The jack of snow caused by climate change could mak e water more scarce in the future.Clear cutting is also a severe issue. Clear cutting is when you cut down an entire forest until nothing is left. Consequently, salmon bearing streams are also affected too. The solutions the water issue is less uses of personal transportation. By using fewer cars we can reduce the amount of greenhouse gases and which equals slower effects of global warming. The clear cutting issue can be fixed by regulating what trees can be cut. Cutting the old trees instead of the new growth could help the environment.However, the economy situation would make these possible solutions a challenge to follow. The Arctic could negatively change the Earth if we don't fix the severe issues that are happening at this moment. The Arctic region is a combination of lowlands and mountains. The climate is very severe since because it is not close to the equator. Summers are very short and winter dominates most months. Iron socially, the arctic is a desert because of the littl e amount of precipitation. The Arctic has been very vulnerable to effects of global warming.The Arctic temperatures were raised more than twice than usual over the past century. This can lead to higher sea levels which could possibly be a disaster. Another thing that can happen is the extinction of Arctic animals. With less ice in the region, polar bears have a harder time finding food to eat and then they unfortunately die of starvation. The solution to this issue isn't really possible. Again, using less fossil fuel could possibly help. Possibly bringing awareness about the issue could bring public pressure to the government to do something.However, until that would happen, we can only see the effects climate change has on this region In conclusion, the Coastal Plains, the Western Cordillera, and the Arctic have serious environmental issues that can permanently change the world. The one thing that all of these regions have in common is that they are all effected by climate change/g lobal warming. We can't necessarily stop it but we can do our part to help these regions by not overly using personal transportation and emitting a lot of greenhouse gases into the atmosphere. Overall, these regions can negatively affect us unless we do something to change it.
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