Wednesday, September 18, 2019
Dialectic of the Union Blockade during the Civil War Essay -- U.S. His
The Civil War in the United States from 1861 to 1865 serves as a dark reminder of how disjointed a nation can become over issues that persistently cause heated debate among party factions. Most students that have taken courses in American history understand the disadvantage possessed by the Confederate States of America as they fought against the powerful Union army for what they perceived as a necessary institution of slavery. Historians have debated over the effectiveness of the blockade and if it was important in creating the failures faced by the Confederate States of America. This debate has generated the contested question of ââ¬Å"Did the Union blockade succeed in the American Civil War?â⬠The blockade, whether considered a success or an absolute failure on the part of the Union, holds grand significance in the history of the United States. The increased development in the Unionââ¬â¢s naval department correlates directly with the necessity of possessing ships that cou ld withstand the threat of blockade running. This dialectic will focus on two opposing theses on the matter of how successful the Union blockade was in guaranteeing a victory for the Union. Within ââ¬Å"Reassessment of the Union Blockadeââ¬â¢s Effectiveness in the Civil War,â⬠M. Brem Bonner and Peter McCord make an argument for the success of the blockade by assessing statistical data comprised from the efforts of blockade-runners to breach the hindrance caused by the Union. The authors frequently employ the objecting side of the effectiveness argument when discussing the legality of the blockade and the successes some blockade-runners had in smuggling goods in and out of the Confederacy. On the opposing side of the argument, Daniel Oââ¬â¢Flaherty condemns the blockade as ineffecti... ...he historian who reviews the event. The Confederates were able to continue blockade running up until the conclusion of the war, while the Union strengthened its navy in order to compensate for the imbalance of ship maneuverability. If the blockade proved completely effective, the supplies Confederate soldiers possessed throughout the war would have unobtainable via blockade running. It would also distort the history of the Civil War to name the blockade as the main reason for the Southââ¬â¢s deterioration, when it only aided to existing problems leading to the conclusion to the war after the Southââ¬â¢s surrender. Works Cited Bonner, Michael Brem and Peter McCord. "Reassessment of the Union Blockade's Effectiveness in the Civil War." The North Carolina Historical Review (2011): 375-395. O'Flaherty, Daniel. "The Blockade that Failed." American Heritage 6.5 (1955).
Tuesday, September 17, 2019
Federal government of the United States Essay
1. Based on your own research on industrial/commercial and government purchasing, what are those elements that you consider to be unique to each? The difference is the two is the government has certain authority and rights that commercial enterprises do not have in my opinion. The government is not in the business in making a profit. There are certain price limits set by the government that can not be exceeded majority of the times when making purchases. In Federal Government contracting, specific regulatory authority is required for the Governmentââ¬â¢s agent to enter into the contract, and that agentââ¬â¢s bargaining authority is strictly controlled by statutes and regulations reflecting National policy choices and prudential limitations on the right of Federal employees to obligate Federal funds. Commercial purchases on the other hand , is mainly guided by profit motivations. Each commercial/private vendor represents itself and can obligate their purchases in its own manner. 2. What are the skill sets that a purchasing and supply management professional should possess or acquire to be successful in the exercise of the purchasing functions with commercial or Governmental organizations? The skill set that a purchasing, and supply management professional, should possess or acquire successful is, relationship/team building skills. The ability to deal with a client /vendor or manufacture and come to terms and or agreement, that will benefit both parties. I also think you should have some prior experience 2-4 years in purchasing or supply management . Lastly, holding a degree in business management, contract services or acquisition management should also be a necessary skill.
Monday, September 16, 2019
Administrative Ethics Paper Hcs/335
Administrative Ethics Paper HCS/335 November 5, 2012 Administrative Ethics Paper In todayââ¬â¢s world of technology patientââ¬â¢s face an ever challenging issue of protecting their privacy. One of the biggest areas infringing on a patientââ¬â¢s privacy would be the prescription health information that is being released by pharmacists and the way in which that information is used.Information is given to a wide variety of entities and to individuals, which raises enormous concern about the privacy rights of patients, especially considering the fact that the patient has not given consent for the release of this information. Legislative and judicial attention is being given on how to protect privacy identifiable information on prescription data and the harm that can be done by the release of this information. There is a lot of focus on exploring privacy issues with regard to personal health information (PHI), especially with the prescription drugs containing so much information. The computerized databases in a pharmacy collect a host of patient information including the patientââ¬â¢s address, the patientââ¬â¢s name, the date it was filled, the place it was filled, the patientââ¬â¢s gender and age, the prescribing physician, what drug was prescribed, the dosage, and how many pills. How a patientââ¬â¢s information is used once it is de-identified most likely doesnââ¬â¢t even cross anyoneââ¬â¢s mind because most patients donââ¬â¢t realize that anyone other than the pharmacist, the doctor, and the insurance company for processing the claim, are going to see it.There is a long list of companies and individuals that want the patient prescription PHI, including lawyers, educators, researches that are performing clinical trials, marketing purposes, government officials, and employers. The article, Somebodyââ¬â¢s Watching Me, lays the groundwork in legally developing the framework for protecting the privacy of patient prescription PHI, especi ally the information on de-identified PHI. There are 5 parts to the legal framework.Part 1 basically states why there is a need for federal legislation to step in to help protect both patient prescription PHI, and de-identified patient prescription PHI. Part II shows the process of how the information is collected and used. Part III talks about federal and state laws that are currently in existence to protect a patientââ¬â¢s privacy rights, with a focus on three state statutory attempts that would curb information being used for marketing purposes, and the Supreme Court and circuit court responses.Part IV looks at the existing laws regarding unauthorized disclosure of patient prescription PHI. This is a more intense look at all of the statutes, ethical guidelines, federal and state statutes and laws, and other option for protecting a patientââ¬â¢s privacy. Part V suggests having a federal statute allowing patients to control the use of their information for both patient prescr iption PHI, and de-identified PHI. Most people would think that de-identified PHI would be protected because it is encrypted before it is transferred to others not authorized to access the identifiable information.Unfortunately, there are ways such as geo-coding that allows others to re-identify the information. Even if a company sells the data information that they have and they state that personal information is not to be used by third parties, there is no guaranty that the purchaser will uphold the agreement. In todayââ¬â¢s technological society it is difficult to have a program that will continue to make re-identification impossible, especially if an individualââ¬â¢s privacy was once breached by re-identification. Encryptions are codes and codes are broken all the time.Moreover, encryption requires use of a key or cipher, which is used to lock and unlock the hidden data. Such a key is necessary to allow the hidden data to be viewed in an intelligible manner by those who ar e authorized to view it. However, there is always a risk that the encryption key might fall into the wrong hands, thereby allowing the information to be accessed by unauthorized viewers. There are many problems that could arise from a patientââ¬â¢s information landing into the hands of a stranger, a boss, an enemy, or any other individual that does not have permission to view that information.The Health Insurance Portability and Accountability Act (HIPAA) needs to take a hard look at the problems that exist with the identifiable patient prescription PHI, the de-identified patient prescription PHI, and the encrypted prescription PHI. These issues affect the entire population and can have a devastating impact on those that have their personal information get into the wrong hands. If there is an employee who has Aides and they donââ¬â¢t want other workerââ¬â¢s to know, it would be too easy for an employer to obtain that information.The arguments and facts that are used in the article support the proposed solution by stating the problems that arise without having laws in place to protect the privacy rights of patients. There are many ethical and legal issues when you are dealing with privacy rights, including the chances of getting sued by individuals for letting their information be obtained and used by others. Having privacy information released into the wrong hands can be detrimental to a patient. A manager in a health care environment should be there to support and help bring laws into place that protects both the patient and the organization. REFERENCESSmith, C. (2012) Somebodyââ¬â¢s Watching Me: Protecting Patient Privacy in Prescription Health Information, Vermont Law Review, retrieved from the University of Phoenix Library on November 4, 2012. Kendall, D. Protecting Patient Privacy in the Information Age retrieved from http://www. hlpronline. com/kendall. pdf Thacker, S. , (2003) HIPAA Privacy Rule and Public Health CDC, retrieved from http://w ww. cdc. gov/mmwr/preview/mmwrhtml/m2e411a1. htm ââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬â [ 1 ]. David Colarusso, Note, Heads in the Cloud, A Coming Storm: The Interplay of Cloud Computing, Encryption and the Fifth Amendmentââ¬â¢sProtection Against Self-Incrimination, 17 B. U. J. Sci & TECH. L. 69, 78-80 (2011)(describing the details of symmetric key encryption and public key encryption) [ 2 ]. Id. at 789 (describing how a cipher or key renders plaintext unreadable gibberish). [ 3 ]. Robert D. Fram, Margaret Jane Radin & Thomas P. Brown, Altred States: Electronic Commerce and Owning the Means of Value Exchange, 1999 STAN. TECH. L. REV. 2, 15-16 (1999) (outlining the risks of cryptography, including the possibility that encryption keys may not always be kept secret. )
Sunday, September 15, 2019
Radical
INTRODUCTION Jawaharlal Nehru was born on 14 November 1889. He died on 27 May 1964. He was an Indian statesman who was the first (and to date the longest-serving) prime minister of India, from 1947 until 1964. One of the leading figures in the Indian independence movement, Nehru was elected by the Congress Party to assume office as independent India's first Prime Minister, and re-elected when the Congress Party won India's first general election in 1952. As one of the founders of the Non-aligned Movement, he was also an important figure in the international politics of the post-war era.He is frequently referred to as Pandit Nehru (ââ¬Å"panditâ⬠being a Sanskrit and Hindi honorific meaning ââ¬Å"scholarâ⬠or ââ¬Å"teacherâ⬠) and, specifically in India, as Panditji (with ââ¬Å"-jiâ⬠being a honorific suffix). The son of a wealthy Indian barrister and politician, Motilal Nehru, Nehru became a leader of the left wing of the Indian National Congress when still fai rly young. Rising to become Congress President, under the mentorship of Mahatma Gandhi, Nehru was a charismatic and radical leader, advocating complete independence from the British Empire.In the long struggle for Indian independence, in which he was a key player, Nehru was eventually recognized as Gandhi's political heir. Throughout his life, Nehru was also an advocate for Fabian socialism and the public sector as the means by which long-standing challenges of economic development could be addressed by poorer nations. PERSONAL LIFE AND EDUCATION Jawaharlal Nehru was born to Motilal Nehru (1861ââ¬â1931) and Swaroop Rani (1863ââ¬â1954) in a Kashmiri Pandit family. Nehru was educated in India and Britain. In England, he attended the independent boy's school, Harrow and Trinity College, Cambridge.During his time in Britain, Nehru was also known as Joe Nehru. On 8 February, 1916, Nehru married seventeen year old Kamala Kaul. In the first year of the marriage, Kamala gave birth t o their only child, Indira Priyadarshini. Life and career Nehru raised the flag of independent India in New Delhi on 15 August 1947, the day India gained Independence. Nehru's appreciation of the virtues of parliamentary democracy, secularism and liberalism, coupled with his concerns for the poor and underprivileged, are recognized to have guided him in formulating socialist policies that influence India to this day.They also reflect the socialist origins of his worldview. He is sometimes referred to as the ââ¬Å"Architect of Modern Indiaâ⬠. His daughter, Indira Gandhi, and grandson, Rajiv Gandhi, also served as Prime Ministers of India. Successor to gandhi On 15 January 1941 Gandhiji said, ââ¬Å"Some say Pandit Nehru and I were estranged. It will require much more than difference of opinion to estrange us. We had differences from the time we became co-workers and yet I have said for some years and say so now that not Rajaji but Jawaharlal will be my successor. â⬠Finaly earsNehru had led the Congress to a major victory in the 1957 elections, but his government was facing rising problems and criticism. Disillusioned by intra-party corruption and bickering, Nehru contemplated resigning but continued to serve. The election of his daughter Indira as Congress President in 1959 aroused criticism for alleged nepotism, although actually Nehru had disapproved of her election, partly because he considered it smacked of ââ¬Å"dynastiesâ⬠; he said, indeed it was ââ¬Å"wholly undemocratic and an undesirable thingâ⬠, and refused her a position in his cabinet.Indira herself was at loggerheads with her father over policy; most notably, she used his oft-stated personal deference to the Congress Working Committee to push through the dismissal of the Communist Party of India government in the state of Kerala, over his own objections. Nehru began to be frequently embarrassed by her ruthlessness and disregard for parliamentary tradition, and was ââ¬Å"hurt â⬠by what he saw as an assertiveness with no purpose other than to stake out an identity independent of her father.Although the Pancha Sila (Five Principles of Peaceful Coexistence) was the basis of the 1954 Sino-Indian treaty over Tibet, in later years, Nehru's foreign policy suffered through increasing Chinese antagonism over border disputes and Nehru's decision to grant asylum to the Dalai Lama. After years of failed negotiations, Nehru authorized the Indian Army to annex Goa from Portugal in 1961. While increasing his popularity, Nehru received criticism for opting for military action. In the 1962 elections, Nehru led the Congress to victory yet with a diminished majority.Opposition parties ranging from the right-wing Bharatiya Jana Sangh and Swatantra Party, socialists and the Communist Party of India performed well. In a matter of months, the border disputes with China turned into open conflict. Nehru assumed that as former victims of imperialism (India being a colony it self) they shared a sense of solidarity, as expressed in the phrase ââ¬Å"Hindi-Chini bhai bhaiâ⬠(Indians and Chinese are brothers). He was dedicated to the ideals of brotherhood and solidarity among developing nations.Nehru, credulously, did not believe that one fellow Socialist country would attack another; and in any event, he felt secure behind the impregnable wall of ice that is the Himalayas. Both proved to be severe miscalculations of China's intentions and military capabilities. Following reports of his intention to confront Chinese occupation of the disputed areas ââ¬â summarised in a memorable statement that he had asked the Army to ââ¬Å"throw them (Chinese) outâ⬠ââ¬â China launched a pre-emptive attack.In a matter of days, a Chinese invasion of northeastern India exposed the weaknesses of India's military as Chinese forces came as far as Assam. Widely criticized for his government's insufficient attention to defence, Nehru was forced to sack the def ence minister Krishna Menon and seek U. S. military aid. Nehru's health began declining steadily, and he was forced to spend months recuperating in Kashmir through 1963. Some historians attribute this dramatic decline to his surprise and chagrin over the invasion of India by the Chinese, which he perceived as a betrayal of trust.Upon his return from Kashmir in May 1964, Nehru suffered a stroke and later a heart attack. He died in the early hours of 27 May 1964. Nehru was cremated in accordance with Hindu rites at the Shantivana on the banks of the Yamuna River, witnessed by hundreds of thousands of mourners who had flocked into the streets of Delhi and the cremation grounds. LEGACY As India's first Prime minister and external affairs minister, Jawaharlal Nehru played a major role in shaping modern India's government and political culture along with sound foreign policy.He is praised for creating a system providing universal primary education, reaching children in the farthest corner s of rural India. Nehru's education policy is also credited for the development of world-class educational institutions such as the All India Institute of Medical Sciences, Indian Institutes of Technology, and the Indian Institutes of Management. In addition, Nehru's stance as an unfailing nationalist led him to also implement policies which stressed commonality among Indians while still appreciating regional diversities.This proved particularly important as post-Independence differences surfaced since British withdrawal from the subcontinent prompted regional leaders to no longer relate to one another as allies against a common adversary. While differences of culture and, especially, language threatened the unity of the new nation, Nehru established programs such as the National Book Trust and the National Literary Academy which promoted the translation of regional literatures between languages and also organized the transfer of materials between regions. In pursuit of a single, un ified India, Nehru warned, ââ¬Å"Integrate or
Saturday, September 14, 2019
Analysis Of Hydrocarbon Essay
Abstract In the analysis the solid-phase microextraction (SPME) and capillary gas chromatography/mass spectrometry (GC/MS) was developed for the identification of volatile compounds (hydrocarbon) in fuel. The samples was used is (kerosene, diesel, thinner and petrol) and one unknown. After the analyte was extracted by SPME in 20min, it directly injected to the GCMS with desorption time 80sec.After the analysis was done, the result was stated at table 4.1, the unknown was identified as a petrol because the hydrocarbon presence in the unknown is the same with the hydrocarbon compound in the petrol sample. Aromatic hydrocarbon was presence in both sample petrol and unknown. Alkanes hydrocarbon was presence in other sample. Objective The objectives of this experiment are to perform sample preparation by SPME and to identify the components of hydrocarbon in common fuel using SPME-GC-MS. Introduction Solid phase microextraction, a simple, effective adsorption/desorption technique, eliminates the need for solvents or complicated apparatus for concentrating volatile or nonvolatile compounds in liquid samples or headspace. SPME is compatible with analyte separation/detection by gas chromatography or HPLC, and provides linear results for wide concentrations of analytes. By controlling the polarity and thickness of the coating on the fiber, maintaining consistent sampling time, and adjusting several other extraction parameters, an analyst can ensure highly consistent, quantifiable results from low concentrations of analytes. Analyses of volatile or semivolatile organic environmental pollutants,flavor or fragrance components, and many other samples usually begin with concentrating the analytes of interest through liquid-liquid extraction, purge-and-trap, headspace, or various other techniques. These procedures typically require excessive time, complicated equipment, and/or extravagant use of organic solvents. Solid phase microextraction, or SPME,* an adsorption/desorption technique developed at the University of Waterloo (Ontario, Canada), eliminates the need for solvents or complicated apparatus for concentrating volatile or nonvolatile compounds in liquid samples or headspace. SPME provides linear results over wide concentrations of analytes (1-4), is compatiblewith any packed column or capillary gas chromatograph or gas chromatograph-mass spectrometer system, and can be used with split/splitless or direct/packed injectors. An SPME/HPLC interface allows the technique to be combined with analysis by HPL C, expanding the applications for the extraction technique to detection of surfactants in water, pharmaceuticals in biological fluids, and many other analyses. An analytical process typically consists of several discrete steps: sampling, sample preparation, separation, quantification and data analysis. For example, in the analysis of semivolatile components in water, the target analytes are first extracted into an organic solvent. The resulting solution is then introduced into an analytical instrument for separation, quantification, and possible identification. Each of these steps affects the precision, accuracy and speed of the analysis. Although multi-dimensional techniques such as gas chromatography/mass spectrometry (GC/MS) have improved separation and quantification, the preparation step is still time consuming and often uses a significant volume of organic. SPME was developed to simplify the preparation step. SPME is a microextraction technique, which means that the amount of extraction solvent is very small compared to the sample volume. As a result, exhaustive removal of analytes to the extracting phase does not occur, rather an equilibrium is reached between the sample matrix and the extracting phase. To make this approach practical, the extracting phase is permanently attached to rods made out of various materials. In most of the cases, the extracting phase is a polymeric organicà phase that is cross-linked and permanently attached to the rod. In one configuration, the rods consist of an optical fiber made of fused silica, which is chemically inert. A polymer layer is used to protect the fiber against breakage. Two common polymers used are poly (dimethylsiloxane) and polyacrylate. Poly (dimethylsiloxane) behaves as a liquid,which results in rapid extraction compared to polyacrylate, which is a solid. The silica rods have a typical diameter of 100ââ¬â200 micrometers and a film thickness ranging from 10ââ¬â100 microns. When the coated fiber is placed into an aqueous matrix (Figure 1), the analyte is transferred from the matrix into the coating. The extraction is considered to be complete when the analyte has reached an equilibrium distribution between the matrix and fiber coating. The equilibrium condition can be described as: n = Kfs Vf Vs Co Kfs Vf Vs when n is the amount extracted by the coating Kfs is the distribution coefficient between the fiber coating and the sample matrix, Vf is the volume of the fiber coating, Vs is the volume of the sample, and C0 is the initial concentration of analyte in the sample. FIGURE 4.1: Microextraction with SPME. SPME passively extracts organic compounds and concentrates them onto a thin, fused-silica ï ¬ ber coated with a stationary-phase material. The component in sample was identified by comparing with the mass spectra library. The quality of a component must taken 90% and above. There are three different extraction modes for SPME: I.à Direct: Fiber is placed in the water or air sample and the analytes are adsorbed onto or absorbed into the ï ¬ ber coating directly from the sample matrix. II.à Headspace: Sample of soil or water is placed in a vial. The SPME ï ¬ ber is placed in the air directly above the water or soil, and analytes partition from the sample matrix through the air to the ï ¬ ber coating. The air in the vial serves as a barrier between the SPME ï ¬ ber and the sample matrix to protect the SPME ï ¬ ber and eliminate fouling by high molecular-weight compounds and other non-volatile interferences in the sample media. III.à Membrane: uses a membrane to protect the SPME ï ¬ ber from heavily contaminated samples that may damage the ï ¬ ber. Figure 4.2: Schematic diagram of the headspace SPME apparatus. Sample: Unleaded petrol, diesel, paint thinner, kerosene and unknown. Apparatus: SPME holder with 100 à ¼m polydimethylsiloxane (PDMS) fibre. Instrument: Gas chromatograph (Agilent Technologies 5890 Series II) Equipped with HP 5971A mass selective detector and a 30m x 0.25à ¼ x 250 à ¼m HP 5 ââ¬â MS capillary column and glass vials with septum. Procedure Instruments Set up Injector temperature : 250 oC Detector temperature : 300 oC Carrier gas flow rate : 30 ml/s Column temperature : 60 oC to 170oC at 10oC/min 1. The fiber (PDMS) was conditioned in the GC injection port at 250oC for at least 10 minutes to removed contaminations. 2. Approximately 5 mL of unleaded petrol was added in a glass vial and place the vial on a hot plate. The sample was heated to 50oC. 3. The SPME fiber was exposed to the headspace of the vial for 20 minutes and the temperature was constant at 50oC. 4. The fiber was withdraw into the needle and pulled out from the vial and immediately injected into GC-MS with desorption time 80 seconds. 5. Using the mass spectra library, the major component compound in each sample was identified using the mass spectra library. 6. Step 2 until 5 were repeated for other sample. Discussion The solid phase microextraction process is shown in Figure 4.3. 1cm length of fused silica fiber, coated with a polymer, is bonded to a stainless steel plunger and installed in a holder that looks like a modified microliter syringe. The plunger moves the fused silica fiber into and out of a hollow needle. To use the unit, the analyst draws the fiber into the needle, passes the needle through the septum that seals the sample vial, and depresses the plunger, exposing the fiber to the sample or the headspace above the sample. Organic analytes adsorb to the coating on the fiber. After adsorption equilibrium is attained, usually in 2 to 30 minutes, the fiber is drawn into the needle, and the needle is withdrawn from the sample vial. Finally, the needle is introduced into the gas chromatograph injector, where the adsorbed analytes are thermally desorbed and delivered to the GC column, or into the SPME/HPLC interface. Results compare very favorably to results for other sample preparation. Figure 4.3: Solid Phase Microextraction In SPME, equilibria are established among the concentrations of an analyte in the sample, in the headspace above the sample, and in the polymer coating on the fused silica fiber. The amount of analyte adsorbed by the fiber depends on the thickness of the polymer coating and on the distribution constant for the analyte. Extraction time is determined by the length of time required to obtain precise extractions for the analytes with the highest distributionà constants. The distribution constant generally increases with increasing molecular weight and boiling point of the analyte. Selectivity canà be altered by changing the type of polymer coating on the fiber, or the coating thickness, to match the characteristics of the analytes of interest. In general, volatile compounds require a thick coating, and a thin coating is most effective for adsorbing/desorbing semivolatile analytes. Desorption of an analyte from an SPME fiber depends on the boiling point of the analyte, the thickness of the coating on the fiber, and the temperature of the injection port. Nonpolar analytes are most effectively extracted with a nonpolar fiber coating and polar analytes are most effectively extracted with a polar coating, just as nonpolar or polar analytes are most effectively analyzed on a gas chromatography column of like polarity. In SPME however, because only 1cm of fiber is exposed to the sample matrix, the fiber coating must be either nonpolar or strongly polar in nature. The small differences in stationary phase polarity that are useful in gas chromatography (a 5% diphenylsiloxane/95% dimethylsiloxane phases versus a 100% dimethylsiloxane phase, for example) will not produce appreciable selectivity differences in SPME. The polydimethylsiloxane (PDMS) is the non- polar stationary phase that has been used in this experiment. The ââ¬âR groups are all ââ¬âCH3, giving a liquid that is relatively nonpolar. In general, polar fibers are used for polar analytes and nonpolar fibres for non-polar analytes. Before proceed the analysis, the sample must be heated to make the sample attach to the fibre. The fibre was put into the vial that contains the sample. The vial was heated by using the water bath at 500C this was done because if the temperature was not strictly controlled, the components of interest from t he sample that we wanted to collect will not be able to obtain. We controlled the temperature by adding cold water inside the water bath system if the temperature goes high, reduced the amount of water, and also increased the hot plateââ¬â¢s temperature if the temperature goes low than 500C.Before placing the fibre into the sample vial through its septum, the fibre was first injected into the injection port of the GCMS at temperature of 2500C for 10 minutes so that any interferences and contaminants can be effectively removed. By doing this, we actually want to make sure that no impurities existed on the fibre. Thus, we can be sure that we are actuallyà injecting pure vapor of sampleââ¬â¢s components obtained from exposing the fibre to the headspace of the vial. After the extraction time was completed, we transferred the fibre immediately to injection port for injection purpose, as we did not want any of the components of sample that we collected to be disappeared into the surrounding. After the extraction time was completed, we transferred the fibre immediately to injection port for injection purpose, as we did not want any of the components of sample that we collected to be disappeared into the surrounding. After 80 seconds of injection, the fibre was pulled out from the injection port. The 80 seconds period is known as desorption time. The factors that effects on determining desorption times are carrier gas linear flow and temperature. These factors will influence the carryover experience on the fibre. There are several factors that effects on precision of the fibre such as condition of the fiber, GC injector (fibre positioning), desorption time, sample volume, agitation, extraction time and temperature. During the experiment, there were source of error occurred such as personal and methods error. For example, when heated, the temperature was not maintained at 50oC. Besides, the fibre was not quickly injected into the GC-MS which can cause the sample to vaporize and in the end the analytes disappear. To get the best result, ensuring the fibre and sample is heated longer and maintain the temperature at 50oC so that the compounds of sample can attached and coated to the fibre. SPME has several important advantages compared to traditional sample preparation techniques. The advantages of SPME discuss. The SPME method for semivolatile analysis consists of inserting the fiber device into the aqueous sample matrix, pushing the plunger to expose the fiber, retracting the fiber into the needle when equilibrium has been reached, and finally introducing the fiber into the analytical instrument. During desorbtion of the analyte, the polymeric phase is cleaned and therefore ready for reuse. The absence of solvent in SPME is an important feature, as it is not only environmentally friendly but makes the separation faster, which increases throughput and allows for the use of simpler instruments. Another importantà feature of SPME is its small size, which is convenient for design. Another important feature of SPME is its small size, which is convenient for designing portable devices for field work. Since the amount of extracting phase is small, the equilibrium of the system is not disturbed and can therefore be studied. Very small objects can be studied with miniature fibers, such as a single flower or even a single cell. The sensitivity and limit of determination is comparable to techniques that rely on liquid extraction. Although only a small portion of analyte is extracted from the matrix, all extracted analytes are transferred to the analytical instrument. This is in contrast to liquid extractions, where the majority of analyte is transferred from a given sample to the organic phase but only a small portion (1/100 or 1/1000) of the extracted analyte is introduced to the analytical instrument. The analyte if the sample non volatile the other extraction method can achieve by placing the SPME fiber directly into the aqueous sample. Conclusion In conclusion, since hydrocarbon is volatile compound, the extraction procedure by placing the SPME fiber in the headspace above the sample can extract the analyte and directly injected to the GCMS, the components in the sample can be identified using the GCMS where we can compare the obtained spectra with the instrumentââ¬â¢s library. From the experiment we are successfully determine the compounds that present in the thinner, kerosene, diesel and petrol. The hydrocarbons that present in unknown are similar to those in kerosene because it is quite similar in chromatography diagram.Besides, the sample are not quality so that the result that we obtain is not accurate a bit because of oftenly used. Recommendations 1. Washing the injector properly so that, no contaminate will occurred. References 1. http://www.sciencedirect.com/science 2. www.geocities.com/hpgc/chem700/spmenotes.pdf
Friday, September 13, 2019
China Outbound Travel Trend Essay Example | Topics and Well Written Essays - 1500 words
China Outbound Travel Trend - Essay Example This research will begin with the statement that the sustainable China`s economic growth, the implementation of the opening up policy by the Chinese government and the overall increase of the government income have had a significant positive impact on the tourism industry in China. China`s citizens have continually travelled abroad for various reasons that have not only had a bearing on the country`s travelling trends but has also affected other industries as well. The general increase in people`s personal incomes and setting up of favourable travelling policies have attracted many people to travel abroad in China making the country dominate Asia's travel trends in the first half of 2015 according to the recent trends in air travel. The trend also possesses a high position in world trade and provides a win-win situation for both consumers and producers. The journey to the growth of China`s travelling trends dates far back in 1997 when the Chinese government allowed its citizens to us e their expenses freely to go abroad. The travel market has since then had significant growth with the number of China`s residents going abroad reaching 16.6 million in the year 2002. This proved China as the fastest growing travelling market and hence a potential tourism market in the world. The improvement trend has since then continued to grow and in 2012 the Chinese expenditure on outbound travel was noted to surpass the Americans spending. By 2014, China was noted to have made 98 million overseas visits that translate to a consumption of 128 billion.
Thursday, September 12, 2019
International Hospitality Industry Essay Example | Topics and Well Written Essays - 3750 words
International Hospitality Industry - Essay Example The data were collected through in-depth, semi-structured interviews and a review of archival data (Web sites, employee handbooks, newsletters, departmental forms) during 1998, 1999, and 2001. Key contacts included Gord Ahrens, former Director Employee Experience (1998, 1999) and his successor, Kirby Brown (2001). Understanding Human Resource Management: A Framework Within this section four distinct conceptions of HRM are presented: traditional HRM; integrative HRM; strategic HRM; and universal HRM. While empirical support for each of these perspectives exists, due in large measure to their degree of inter-relatedness, emerging research provides compelling support for the universal perspective. Storey (1992) explains that the concept of human resource management has attracted enormous attention and stimulated significant debate among academics and practitioners. (McGunnigle P., Jameson S., 2000, pp.403-421) Traditional HRM Traditional HRM (THRM) has its roots in personnel management. Its focus is on worker productivity through discrete HR practices such as selection, job design, and incentive pay practices (Bamberger and Meshoulam, 2000). Empirical THRM research has tended to focus on the link between these practices and various human behaviour and productivity variables (e.g. turnover, job satisfaction, labour costs). Support for this perspective has been found (see for example, Hackman and Oldham, 1980; Guzzo et al., 1985; McEvoy and Cascio, 1985; Weitzman and Kruse, 1990; Cutcher-Gershenfeld, 1991). It is also not always clear what effect first level outcomes (i.e. reduced labour costs) have on second level outcomes (e.g. product quality, sales, profits). Integrative HRM Integrative human resource... Within this section four distinct conceptions of HRM are presented: traditional HRM; integrative HRM; strategic HRM; and universal HRM. While empirical support for each of these perspectives exists, due in large measure to their degree of inter-relatedness, emerging research provides compelling support for the universal perspective. Storey (1992) explains that the concept ofà human resource management has attracted enormous attention and stimulated significant debate among academics and practitioners.à (McGunnigle P., Jameson S., 2000, pp.403-421)Traditional HRM Traditional HRM (THRM) has its roots in personnel management. Its focus is on worker productivity through discrete HR practices such as selection, job design, and incentive pay practices (Bamberger and Meshoulam, 2000). Empirical THRM research has tended to focus on the link between these practices and various human behaviour and productivity variables (e.g. turnover, job satisfaction, labour costs). Support for this pe rspective has been found (see for example, Hackman and Oldham, 1980; Guzzo et al., 1985; McEvoy and Cascio, 1985; Weitzman and Kruse, 1990; Cutcher-Gershenfeld, 1991). It is also not always clear what effect first level outcomes (i.e. reduced labour costs) have on second level outcomes (e.g. product quality, sales, profits).Integrative HRM Integrative human resource management (IHRM) is also interested in the impact of various human resource practices, but focuses on their ââ¬Å"congruencyâ⬠(Beer et al., 1985).
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