Laboratory Techniques And Measurements Essay Examples

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Data Analysis And Experimental Uncertainty

1159 words - 5 pages Types of Uncertainty There are two basic kinds of uncertainties, systematic and random uncertainties. Systematic un- certainties are those due to faults in the measuring instrument or in the techniques used in the experiment. Here are some examples of systematic uncertainty: • If you measure the length of a table with a steel tape which has a kink in it, you will obtain a value which will appear to be too large by an amount equal to the loss in length resulting from the kink. On the other hand, a calibration error in the steel tape itselfâ€"an incorrect spacing of the markingsâ€"will produce a bias in one direction. • If you measure the period if a pendulum with a clock that runs... VIEW DOCUMENT
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Operations Performance Analysis

1694 words - 7 pages �PAGE � �PAGE �1� OP Analysis Organizational Performance AnalysisEleanor Baughman, Mayra Cosmeand AnnaMarie WilberUniversity of PhoenixSYS 540Josue OrracaMarch 19, 2007�Organizational Performance Analysis"Organizations can more readily monitor and reposition their operations in fast-paced, competitive environments, when their performance measurement systems provide them with relevant, timely, complete, and accurate information" (Jensen & Sage, 2000). Professor Orraca asked his class to compare and contrast two simulations... VIEW DOCUMENT
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Jensen's, Gardner's, and Sternberg's theories of applications in measurement of general mental ability in the workplace.

857 words - 3 pages According to Jensen (1998), the g factor is the highest-order common factor that can be extracted in a hierarchical factor analysis from a large battery of diverse tests of an assortment of cognitive abilities. Spearman thought of g as "mental energy" that could be applied to mental tasks (Jensen, 1998).According to Spearman, "individual differences in performance on any mental task result from two sources: differences in the amount of mental 'energy' that can be delivered to the specific 'engine' that mediates performance of the task, and differences in the efficiency of energy utilization by the 'engine.' The efficiency of the various 'engines' differs independently within the... VIEW DOCUMENT
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Animal Testing Essay

1017 words - 4 pages Animal Testing As history shows man has endured and overcome many diseases and illnesses. These diseases killed many people and caused many to suffer. Most of these diseases have been cured do to mans medical research. Medical research has improved people’s lives along with increased life expectancy greatly. These medical breakthroughs have helped mankind in many ways, but in order to achieve these advances in medicine many animals suffered through testing. These test done to animals have improved the lives of many humans who would have suffered themselves. The testing of laboratory animals is an acceptable form of medical research. Today laboratory animal testing has come a long way... VIEW DOCUMENT
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Introduction to measurement Essay

1754 words - 7 pages AbstractSuccess in lab depends on how students can make precise observations, measurements and write data. This experiment was aimed to make students get acquainted with mass and volume measurement. Five 150-ml beakers, a volumetric pipette, the graduated cylinder were tested in a different measures design to determine variation in mass and in volume. Also the experiment included the first-hand view of volume additives on example of volumes of acetone and water in different ratios. This experiment helped students to develop skills of measurement. The objectives of this laboratory were to acquaint with mass, volume measurement, also to learn to use laboratory equipment, notebook and... VIEW DOCUMENT
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Alphone Bertillon's System Essay

1304 words - 5 pages Alphonse Bertillon was born in Paris on April 24, 1853. He was the son of the distinguished physician, anthropologist, and physician, Louis Adolphe Bertillon (bookrags.com). Young Alphonse was seen as hopeless through his fathers eyes. He often suffered from migraine headaches, and nosebleeds, and was very shy and lacked social skills. However, the young Bertillon was not a complete loss, he was an intellectual who had a thirst for knowledge and shared his father's interest in statistics and anthropology (http://jimfisher.edinboro.edu). In the year 1875, Bertillon was conscripted into the french army. After several years of armed service Bertillon was discharged. With no higher education... VIEW DOCUMENT
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The use of anthropometric measurements to assess nutritional status: advantages and limitations of anthropometric measurements

3088 words - 12 pages Introduction 1.1 Assessment of nutritional status Anthropometric measurements can be considered the most commonly used methods of nutritional status, at both the individual and population levels. The measurements should characterize the composition of the human body at different degrees of nutrition under the standardized procedures and appropriate reference data. (Gibson, 2005; Willet, 1998; WHO, 1995; WHO 2000; WHO 2006). The measures of body elements assessed at individual level can be commonly used to represent individual's nutritional status directly. Furthermore, may help to distinguish between fat and fat free mass and can provide broaden information about, for example, protein... VIEW DOCUMENT
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The Impact of the Laboratory on Nineteenth-Century Medicine?

1598 words - 6 pages The laboratory had an influential impact on nineteenth century medicine. It saw technological advances such as the microscope allowing the observation of cells and micro-organisms and the way minute cells were formed and appeared. The practice of medicine allowed hospitals to seek advice and improve diagnosis by the study of body parts and the workings of the body such as the study and discovery of the digestive system. Education was progressed with students having to pass laboratory tests before attending hospitals for clinical training in many parts of Europe by the end of the nineteenth century. What the period saw was grace to an abundance and change from theory to fact through careful... VIEW DOCUMENT
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Improving the Accuracy of Satellite-Derived Data

810 words - 3 pages In this research we are aiming at improving the accuracy of satellite-derived data through developing a novel technique for vicarious calibration. The technique uses an optical sensor with enhanced traceability to the SI units. The spectrometer, together with supporting equipment, will be mounted on-board a remote controlled helicopter as an efficient and low cost remote sensing tool. The on-board instruments are controlled using a mini-computer that is connected with a ground-based computer through remote network connection, so real time measurements can be observed and controlled on the ground by the operator. The spectrometer, that is required to be a palm-size detector, is operating in... VIEW DOCUMENT
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Cell volume lab Essay

536 words - 2 pages Method and Materials:We calibrated the conductivity sensor by measuring the conductivity when distilled water and 1.1% NaCl (338mOsm/kg) is added. We made sure that the conductivity probe correctly attached to the right insert on the SW500 Interface which is connected to the computer.We took small beaker to the front of the room and we filled it ¾ full with the prepared solution. We opened "Lab Group" folder. We then opened "Laboratory 2" folder. We clicked on the sensor. We then opened the calibration section of the program. We placed the conductivity probe first into distilled water and then... VIEW DOCUMENT
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Should Animals be used in invasive Laboratory techniques in psychological research

1525 words - 6 pages A submission to the Australian Psychological SocietyTraditionally, humans were believed to be created in the image of God and to have dominance over animals. This ideology stems from the bible and the belief that a greater value is put on the lives of humans than to those of animals. This submission shall explore the problems that stem from these beliefs, such as invasive techniques and the sacrifice of animals in psychological research. Bowd and Shapiro (1993) defined invasiveness as, to not only cause physical but also emotional harm to animals. Initially this... VIEW DOCUMENT
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Chemistry of the Stratosphere

995 words - 4 pages There are several techniques used to investigate the chemistry of thestratosphere. The first of these is monitoring which involvesanalysing the air using spectroscopy. Given that ozone absorbs in theinfra-red and ultra-violet regions of the spectrum, the concentrationon ozone in a sample can be calculated form the strength of itsabsorption (figure1). This has to be carried out at different timesand in different conditions to ensure any decrease is not due tonatural fluctuations.[IMAGE]Figure 1 - Ozone Distribution in the AtmosphereOnce the molecules present in the stratosphere are identified,laboratory measurements can be carried out to investigate thereactivity of the molecules... VIEW DOCUMENT
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Biology: Separation of Proteins

1150 words - 5 pages Biology: Separation of Proteins Lab Report 1: Separation of Proteins Abstract/Summary: “Proteins account for more than 50% of the dry weight of most cells, and they are instrumental in almost everything organisms do” (Campbell, 1999). The significance of proteins to the continuation of our biological systems is undeniable, and a study of how to quantify proteins seems an appropriate introduction to our studies of biology. In order to study proteins we must first know how to separate then quantify the amount using basic principles of experimental design such as a standard curve. In this experiment we wish to quantify the amount of previously extracted protein by measuring the... VIEW DOCUMENT
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Falsifiabiliyt Paper

537 words - 2 pages FALSIFIABILITY PAPER � PAGE \* MERGEFORMAT �1� Falsifiability PaperSociological researchers take the data that is accumulated during testing to analyze it in order to study their hypothesis. There are four common techniques used during sociological testing such as the observational study, the case study, the survey, and the experiment. One scientific method, also known as an experiment, is used to compare the facts, data, and information provided after testing, by using either dependent variables in an opened atmosphere or independent variables in a closed atmosphere.The two different styles of experimenting are known as field... VIEW DOCUMENT
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Forensic Science

3430 words - 14 pages Forensic Science The word Forensic comes from the Latin forensus, meaning of the forum.1 In ancient Rome, the forum was where lawmaking debates were held, but it was also where trials were held just like modern day courthouses. From that, forensic science has come to mean the application of the natural and physical science to the motion of matters within a legal context2. Forensic Science can be viewed as a tripartite structure consisting of a Collection, which pertains to the science investigation, Examination, which pertains to the medical investigation and, Presentation, which pertains to the courts. A forensic case will involve all aspects of... VIEW DOCUMENT
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Forensic science.

2904 words - 12 pages The word Forensic comes from the Latin forensus, meaning of the forum.1 In ancient Rome, the forum was where lawmaking debates were held, but it was also where trials were held just like modern day courthouses. From that, forensic science has come to mean the application of the natural and physical science to the motion of matters within a legal context2. Forensic Science can be viewed as a tripartite structure consisting of a Collection, which pertains to the science investigation, Examination, which pertains to the medical investigation and, Presentation, which pertains to the courts. A forensic case... VIEW DOCUMENT
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Forensic Science

2690 words - 11 pages forensic scienceThe word Forensic comes from the Latin forensus, meaning of the forum.1 Inancient Rome, the forum was where lawmaking debates were held, but it was alsowhere trials were held just like modern day courthouses. From that, forensicscience has come to mean the application of the natural and physical science tothe motion of matters within a legal context2. Forensic Science can be viewed asa tripartite structure consisting of a Collection, which pertains to the scienceinvestigation, Examination, which pertains to the medical investigation... VIEW DOCUMENT
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Accurately Predicting the Focal Length For Four Lens Systems

1786 words - 7 pages Abstract: We attempted to accurately predict the focal length for four lens systems: a 100 mm lens, a 200 mm lens, a compound lens system, and an unknown lens. This was done by using an optics track with a mounted light and displayed image, and measurement of the location of image in full focus after movement of a white display plate set up after the lens system. The best value of f100 was determined to be from unweighted computations, with a value of f100=(0.096±0.0004) m, with a percent error of 3.6%, a fractional error of 0.4%, and a discrepancy of 9.1σ. The best value of f200 was determined to be from weighted calculations, giving a value of f200 =(0.206±0.001) m, with a percent error of... VIEW DOCUMENT
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Operation management

2051 words - 8 pages 1.0 INTRODUCTION:For organization to be effective it should manage its way of doing things by systemizing it based on Management standards, these standard are called TQM (Total Quality management).These standards make sure about everything and everyone in whole organization.TQM is a management philosophy that seeks to:Improve the organization effectiveness, flexibility competitiveness and profitability.Provide a non-threatening work climate where employees can maximize their contribution.All organization strive to systematically manage the... VIEW DOCUMENT
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Quantum Limited Particle Sensing in Optical Tweezers

691 words - 3 pages The application of the radiation pressure force for the trapping of atoms and neutral particles was pioneered by Arthur Ashkin \cite{ashkin70s}. This was followed by a plethora of seminal experiments utilizing the radiation pressure force \cite{ashkin80}, for example in the displacement and levitation in air and water of micron-sized particles \cite{ashkin-levitate}, and together with Steve Chu, for the development of a stable three-dimensional atom cooling and trapping experiment using frequency-detuned counter-propagating laser beams \cite{chu-MOT}. In particular, the demonstration of {\it optical tweezers} \cite{ashkin-tweezer}, based largely on the transverse gradient force of a single... VIEW DOCUMENT
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Psychological Tests

2527 words - 10 pages Psychological Tests The primary motivation for the development of the major tests used today was the need for practical guidelines for solving social problems. The first useful intelligence test was prepared in 1905 by the French psychologists Alfred Binet and Théodore Simon. The two developed a 30-item scale to ensure that no child could be denied instruction in the Paris school system without formal examination. In 1916 the American psychologist Lewis Terman produced the first Stanford Revision of the Binet-Simon scale to provide comparison standards for Americans from age three to adulthood. The test was further revised in 1937 and 1960, and today the Stanford-Binet remains one of... VIEW DOCUMENT
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Structural Identification Of Unreinforced Masonry Structures

1857 words - 7 pages Introduction D+ was the grade that the ASCE gave to America’s infrastructures in their 2013 Report Card. This grade is assigned based on eight criteria: capacity, condition, funding, future need, operation and maintenance, public safety, resilience, and innovation. According to the grading scale used, the infrastructures are in “poor to fair condition and mostly below standard, with many elements approaching the end of their service life” [1]. Although it is a slight improvement from the last Report Card, this grade shows that America’s aging infrastructures are failing to keep pace with the current needs of the country. This problem is particularly apparent in older cities, comprised of... VIEW DOCUMENT
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Quality Management Organizations

541 words - 2 pages Quality Management Organizations 1Quality Management OrganizationsWilliam MeyerThere are many different quality management organizations spread throughout the United States. These organizations operate on different levels, both nationally and locally. Regardless of the level in which these organizations operate, there mission is to ensure that U.S organizations strive to meet the highest levels of quality and award those that achieve excellence in quality.The National Institute of Standards and Technology operates on a national level and is an... VIEW DOCUMENT
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Fracture and Fatigue of Amorphous Metals

2587 words - 10 pages Introduction A metallic or amorphous metal is one that lacks a traditional crystalline atomic structure and is instead composed of a microstructure that looks more like a liquid than a solid. As a liquid metal is cooled from the melt, the atoms typically rearrange from a random orientation, typical of a liquid, to a highly structured, lower energy crystalline lattice-type structure. Figure 1.1 a shows the typical crystalline structure of CuZr. Figure 1.1 b shows the same material in a glassy, amorphous arrangement. Figure 1.1 c shows the temperature versus potential energy for the CuZr system. The black data points show the potential energy of the system as the temperature of the... VIEW DOCUMENT
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Nissan VSS-From-Instrument Cluster Investigation

1743 words - 7 pages ROSTRA PRECISION CONTROLS Nissan VSS-from-instrument cluster investigation Executive Summary: On the Nissan Frontier/Titan applications, VSS is obtainable from a single wire in the instrument cluster and the Controller Area Network (CAN). The instrument cluster VSS wire is not always pre-installed because, in this case, it is not part of a safety critical system; it only used for accessories. Inside the instrument cluster, the VSS generating circuit is configured to be a “open collector/drain”. This means the circuit switches between the GND and Open Circuit (Hi-Z) states. This circuit configuration is not able to be reliably detected in all cases by the current 57A-02360... VIEW DOCUMENT
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The Function of Pharmacokinetics

1057 words - 4 pages Pharmacokinetic has evolved over the years from being a graphic science to a systematic and is frequently used in the current clinical studies. Scientists are progressively being conscious and willing to collect relevant pharmacokinetic data by using the in vitro studies. In vitro studies will allow the safer and more predictable studies compared and results compare to in vivo studies. Interpretation of toxic side effects of all the medications can be studied via pharmacokinetics in vitro analysis. Pharmacokinetics describes what the body does to the drug, as opposed to pharmacodynamics which describes what the drug does to the body. Pharmacokinetic information is required to utilize and... VIEW DOCUMENT
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Light Intensity

942 words - 4 pages By looking at Table A in the microscopic light results, it can be seen that the results would obey the inverse square law. This was because as the distance increases the light intensity of the microscopic light decreases. The graphs that demonstrate the inverse square law can be seen in figure 1 and 3. Thus, it is evident that the relationship between light intensity varies inversely with the square of the distance holds truth in real-life situations and or under laboratory conditions. The reason for this was because figure 1 was tested in the dark room (under laboratory) whilst figure 3 was tested with other sources of lights (real-life situation) such as sunlight. Therefore, the results... VIEW DOCUMENT
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Osseous surgey for crown lenghtening.a 6 month clinical study

5601 words - 22 pages 1288 Volume 75 • Number 9 Osseous Surgery for Crown Lengthening: A 6-Month Clinical Study David E. Deas,* Alan J. Moritz,* Howard T. McDonnell,* Charles A. Powell,* and Brian L. Mealey* Case Series Background: Despite the fact that surgical crown lengthening is a commonly performed treatment, little is known about the specific surgical endpoints of the procedure or the stability of the newly attained crown height over time. Recent clinical reports have ranged across a spectrum... VIEW DOCUMENT
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The change in enthalpy for the combustion of magnesium metal

1139 words - 5 pages The change in enthalpy for the combustion of magnesium metal Abstract ======== Hess’s law of heat summation states that the value of DH for a reaction is the same whether it occurs directly or as a series of steps. This principle was used to determine the change in enthalpy for a highly exothermic reaction, the combustion of magnesium metal. Enthalpy changes for the reactions of Mg in HCl (aq) and MgO (s) in HCl (aq) were determined experimentally, then added to that for the combustion of hydrogen gas to arrive at a value of –587 kJ/mol Mg. Compared with the accepted value of –601.8 kJ/mol Mg, our experimental error was 2.46%. Introduction In this investigation the change in enthalpy... VIEW DOCUMENT
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Measurement of Time Spent Communicating.

547 words - 2 pages The amount of time we spend communicating is outstanding. There have been multiple studies to find the actual amount of our waking lives spent communicating, and the percentage of time we spend in each division of communication. The article, "Measurement of Time Spent Communicating," is the result of a communication study of employees of a research and development laboratory. The study was based on two techniques: direct observation, and questionnaires. How much time do people spend VIEW DOCUMENT
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Research methods in Psychology.

1927 words - 8 pages Research Methodology.Research involves two steps: Generating scientific hypothesis & testing hypohtesis.Generating Hypothesis:Hypothesis: a statement that can be tested - about the topic of interestEg: Adolescents tend to be more moodier than children or adultsHow to generate hypothesis: by general observationIt also helps to be very familiar with the relevant scientific literatureResearch Methodology:Literature: previously published books and articles about the topic of interestOften the most imp source of SCIENTIFIC HYPOTHESES,... VIEW DOCUMENT
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Physiology of the Circulatory System AP Biology

1246 words - 5 pages AbstractThis laboratory's purpose was to show us how to determine one's blood pressure and the different factors that affect blood pressure and pulse on a person while testing one's own fitness level. After 15 seconds of exercise, my pulse had risen to 196 beats per minute. By doing this, we saw how resting required the heart to beat less because les oxygen was needed and that during exercise, more oxygen is needed, therefore the heart must pump faster. The factors on the blood pressure were a reclining pressure compared to the pressure immediately after rising. In this, I had a 10 mmHg increase. Relations between... VIEW DOCUMENT
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Regulatory Issues Impacting Development of an Emergency Preparedness and Management Plan

1744 words - 7 pages The development of an Emergency Preparedness and Management Plan is complex. There is not a single format to base the plan. Each plan is dissimilar according to the facility that the plan was developed. Each facility is composed of different structural components, machinery, chemicals, and equipment. These subtle differences can mean diverse regulations and standards that must be incorporated into the Emergency Preparedness and Management Plan. Compliance must be achieved when developing the plan. Regulations and standards are written and enforced by several state and federal agencies (Dunlap, n.d.). Some of these agencies include the Federal Emergency Management Agency (FEMA), the... VIEW DOCUMENT
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Adiponectin: a Novel Indicator of Malnutrition and Inflammation in Hemodialysis Patients.

2384 words - 10 pages Objective Protein-Energy malnutrition (PEM) and inflammation are common and overlapping conditions in hemodialysis patients which are associated with increased risk of morbidity and mortality. Adiponectin is an adipocytokine which is exclusively produced by adipose tissue. Few studies in hemodialysis patients have demonstrated that serum levels of adiponectin were significantly higher in malnourished patients compared to well-nourished ones. The aim of this study was to further elucidate the association between serum adiponectin levels and the nutritional–inflammation status of hemodialysis patients. Design. Observational comparative study. Setting and Subjects 80 patients on stable... VIEW DOCUMENT
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Radio-frequency Plasmas

845 words - 3 pages Observations of bi-Maxwellian and single Maxwellian electron energy distribution functions in a capacitively coupled radio-frequency plasmas by laser Thomson scattering M. A. Mansour ElSabbagh,a) M.D. Bowden, K. Uchino, and K. Muraoka Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan ~Received 20 November 2000; accepted for publication 19 February 2001! Electron energy distribution functions in low-pressure capacitively coupled radio-frequency argon discharges were... VIEW DOCUMENT
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The Mystery of the Pyramids

5114 words - 20 pages Why ask why the Great Pyramid was built? Because it is the most massive building on the planet, at least twice the volume and thirty times the mass of the Empire State Building. Because it is aligned to the true cardinal points of the compass even though no compass is known to have existed at its time of construction. Because its masonry which weighs up to seventy tons is joined to the fiftieth of an inch. Because its casing stones were polished to the standard of modern optical work. Why was such an enormous undertaking, combined with such incredible accuracy, deemed necessary for the construction of a mere tomb and funerary ornament to a dead king who never occupied it? It is an... VIEW DOCUMENT
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Theory X

2035 words - 8 pages Undergraduate Courses The faculty of technology offers M.Sc programs; the swedish name of the degree is "Civilingenjör". 666 students are annually accepted in four disciplines: M: Mechanical engineering (150) D: Computer science and engineering (120) Y: Applied physics av Electrical engineering (180) I: Industrial engineering and Management (216) The nominal time for the M.Sc. program is 4,5 years. The first three years mainly consist of compulsory courses in basic subjects. After two and a half years the students make a choice between different specializations (profiles), where some... VIEW DOCUMENT
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localization

1551 words - 6 pages Qualitative and Quantitative Research: How to Choose the Best DesignGreg L. LowhornRegent UniversityIntroductionIt is often difficult to choose between quantitative and qualitative research design. At times, a researcher may choose a design because he or she is more familiar with one method or the other or a colleague recommends a particular design. However, our research will be more helpful if we make our decision based on well-considered, suitable design rather than simply choosing a design that is more familiar or comfortable to the researcher. The purpose of this... VIEW DOCUMENT
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paper

1257 words - 5 pages Prevention Individuals in the laboratory must follow the standard operating procedures for analyzing samples. Laboratories require that no more than one piece of evidence should be opened at a time. Limiting the number of samples opened at a time will prevent cross contamination. The work station or area and utensils should also be cleaned between use with 10% bleach or 70% ethanol. An argument the defense may make during trial is that the DNA sample from the suspect somehow got into the evidence sample. To eliminate any doubt regarding contamination, the known standards should be handled in a separate time and place than the evidence samples. Instrumentation protocols for DNA... VIEW DOCUMENT
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Counterproductive Workplace Competition Part II: Problem Analysis Paper

522 words - 2 pages AbstractIt is important to frame a problem that you are attempting to solve in order to provide clear and concise understanding of the problem and its symptoms. By framing, or identifying the problem, we are better able to distinguish the symptoms, create multiple choices for solutions, and define measurements of success in problem resolution. By answering several key questions surrounding the problem, Team B will offer measurements to determine if problem is solved, a possible solution to the problem, and alternate options for problem solving. Our information comes from work experience and internet research.Counterproductive Workplace CompetitionPart II: VIEW DOCUMENT
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Usefulness and Reliability of Information Provided By Corporations

1685 words - 7 pages An ongoing concern in financial reporting is the usefulness and reliability of information provided by corporations. The financial accounting standard board defines usefulness as the information that is useful for the users in decision making (FASB, 2011). Reliability is inferred when the information is verified, objective, and can be relied on. Therefore, Statement of Financial Accounting Standards No. 157 standardizes the valuation and disclosure of fair value for assets and liabilities in order to achieve both usefulness and reliability. The reasoning for the hierarchy was due to the inconsistency in previous definitions and guidance (FASB, 1992). Introduction to Fair Value... VIEW DOCUMENT
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The History of physics.

1326 words - 5 pages Physics began when man first started to study his surroundings. Early applications of physics include the invention of the wheel and of primitive weapons. The people who built Stone Henge had knowledge of physical mechanics in order to move the rocks and place them on top of each other. It was not until during the period of Greek culture that the first systematic treatment of physics started with the use of mechanics. Thales is often said to have been the first scientist, and the first Greek philosopher. He was an astronomer, merchant and mathematician, and after visiting Egypt he is said to have originated the science of deductive geometry. He also discovered theorems of elementary... VIEW DOCUMENT
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Geological Investigation

1322 words - 5 pages Geological investigation is the first step towards the completion of a building and is considered as the most important step as it identifies the feasibility of an area for construction and determines how the foundations and preventive measurements to be set up for the building. According to Sadhi (2012), one-third of the construction projects are delayed and half of over-tender cost on road projects are due to inadequate geological investigation or poor interpretation of the data. According to Ferrer Geological Consulting (n.d.), geological investigation is mandatory to ensure an adequate design of maximum safety concern and optimum economy benefit to be made and saving on the geological... VIEW DOCUMENT
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Carbon Emissions and Socioeconomic Issues

756 words - 3 pages Cutting down carbon emissions significantly at a date set in the future by many nations that consistently report high income to majority of their population and high carbon emissions as a result of robust economic activities that result in industrial production of goods made available for consumption by other dependent industries which includes the service sector and general population consumption might have made most of the high-income, high-carbon emission nations to take an initial step towards prioritizing their efforts to address the concerns raised about the negative human health and wellbeing impacts that may be caused by global warming and climatic changes in the future which might... VIEW DOCUMENT
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AN EXPERIMENT TO FIND THE ACOUSTIC IMPEDANCE OF PARAFFIN AND WATER

1905 words - 8 pages An experiment to find the acoustic impedance of paraffin and water Abstract The speed of sound through paraffin and water was measured, and came close to the generally expected value. The speed in was calculated as 1458.36±16.2ms^(-1) in water and 1212±23.7ms^(-1) in paraffin. Then the density of these two liquids was measured, and combined with the speed of sound to find the acoustic impedance. . The acoustic impedance of water was 1575±29kgm^(-2) s^(-1) and the acoustic impedance of paraffin was 1066.6±32kgm^(-2) s^(-1) . To check that these values were correct the reflection coefficient of a boundary between paraffin and water was calculated using the acoustic impedances of the liquid,... VIEW DOCUMENT
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Distance Protection Algorithm for Three Terminal Transmission Lines Using Local Measurement

1420 words - 6 pages When a short-circuit fault occurs on a transmission line, it should be located rapidly and correctly in order to repair the faulted section, minimize the transmission line outage time, and restore power delivery as soon as possible. Therefore, development of a robust and accurate fault location technique under various fault conditions is a highly important research area. In some low power densities areas, utilities are connected to an existing transmission line using a tapped line because of economic advantages. Such a configuration of transmission lines presents great difficulty in the task of fault location when the fault resistance is not negligible due to the infeed currents from... VIEW DOCUMENT
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The Benefits Of Dr. Josef Mengele’s Research

1282 words - 5 pages The Benefits of Dr. Josef Mengele's Research Humanity has prospered for years because of the discoveries of the medical community. Many of the discoveries have been results of laboratory experiments on animals. While some of this research has not always been pleasant for the animals, the discoveries uncovered significantly compensate for the countless lives lost during the research. During the Holocaust at the concentration camp at Auschwitz different kinds of subjects were used for experimentation. Dr. Josef Mengele, the camp doctor, focused his work on living humans. The results found... VIEW DOCUMENT
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Organic Synthesis of Aspirin Chemistry Formal Lab.

1385 words - 6 pages Experiment Four: Organic Synthesis of AspirinAbstractThe purpose of this experiment is to synthesize a common organic product called acetylsalicylic acid (aspirin), and to become familiar with the optimum conditions needed for successful yields. Aspirin is produced from an acid catalyzed reaction between salicylic acid with acetic anhydride. The crystalline aspirin is synthesized and purified by recrystallization, although there is not a hundred percent yield due to sources of error.IntroductionAspirin is a medicine commonly found in households around the world. It also is one of the least expensive and most useful drugs in the market. A Chemist named Felix... VIEW DOCUMENT
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The Progress and Setbacks in the Development of Commercial Nuclear Fusion

2160 words - 9 pages In modern, first-world countries it is difficult to imagine life without the benefits of electricity. Yet this luxury often puts a strain on the human race’s financial and environmental responsibilities. For the nearly 1.2 billion people worldwide (The World Bank) without electricity nuclear fusion represents one of the most efficient potential energy sources being developed this century. The chemical properties of the fuel being manipulated by fusion technology promise an energy return far greater than what is needed to initialize a reaction. Theoretically this could provide power so cheap to manufacture that reactors could be run almost endlessly and the product sold for pennies. Though... VIEW DOCUMENT
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Protein Thermal Stability

2442 words - 10 pages Proteins are amazing chemical polymers. They serve a myriad of functions such as providing nutrition in the form of their constitutive amino acids as well as energy. They serve as reactants and enzymes in chemical reactions. Proteins contribute to the texture, viscosity and water holding capacity of foods that contain them. Proteins can be toxins or allergens or hormones, and they serve as transporters for vital molecules such as oxygen in the blood stream (Coultate 1984). These polymers have evolved to play a role in very specific physiological functions and this chemical reactivity can be used for very unique applications beyond a proteins evolutionary scope. A protein’s... VIEW DOCUMENT