Essays on Junction

Introduction

In the modern day, competition has led organizations to re-evaluate their strategies and identify new approaches to enhance their competitiveness. The need to improve the competitiveness of businesses has to the identification of efficiency improvement measures to enhance efficiency that leads to increased productivity and profitability of the organization. Junction Hotel is strategically located and it has operated for a long period. However, with the changing trends in the business environment, there is an increasing need to enhance their efficiency strategies to enhance their competitiveness in the business environment. Organizations adopt strategic approaches through effective management of human resource ...

A proposal in partial fulfillment of the requirements for the degree of

Introduction Wheat (Triticum sp.), an extensively adapted crop, is one of the primitive and primary staple food crops in the world. Wheat is cultivated from temperate; dry to irrigated or rain-fed areas, to warm, humid or cold conditions. Such a high adaptability is attributed to its intricate genome (Acevedo et al., 2002). Wheat cultivation covers more land area compared to other commercial crops and endures to be an essential food grain for humans (Curtis, 2002). Estimations reveal that by 2050, the population of the world will reach 9.1 billion (34 percent greater than today); correspondingly, the food requirement and ...

Muscle contraction is a very important activity that enables an organism perform various bodily movements and flexible actions, in response to nerve stimuli. Muscle fibers are multinucleated long cylindrical cells that have an outer membrane called sarcolemma, and are mainly composed of contractile elements called myofibrils (Dougherty, 2016). Myofibrils are made up of repeating units called sarcomeres. Sarcomeres in turn are composed of (thin) actin and (thick) myosin protein filaments called myofilaments (Dougherty, 2016). The muscle fiber structure and organization is shown in Fig 1.

Contraction Mechanism – Sliding Filament Theory

According to the sliding filament theory, during contraction myosin filaments remain constant in length, ...

Human Physiology ECG Laboratory Report

Abstract This is a practical experiment on ECG concerning human physiology. The experiment intends to achieve one primary goal: equip the learner with vital skills pertinent in making rational decisions anchored on scientifically proven facts. I chose to study participants from both sexes with varying levels of nutritional statuses and physical activities. We recorded the foods consumed by each participant. The results indicated that those who took caffeinated drinks positively correlated to emission of rapid ECG signals demonistrated by the ECG readings.

Introduction

The heart is a fundamental organ in sustaining life. It contracts at regular and perpetual intervals throughout ...

ENGL 303-005: Technical Writing

Feasibility Study on Solutions to efficiently power an electrical vehicle Abstract “Feasibility Study on Solutions to Efficiently Power and Charge Electrical Vehicles” The future of electric vehicles needs to shift toward the use of solar charging stations which can increase the feasibility of electric vehicles outside of urban areas. The solar powered charging stations can revolutionize the way the world views vehicles powered by renewable energy sources. These solar stations can be placed in rural areas which can allow the drivers to store and charge their vehicle, which will minimize the prevalence of vehicles being stranded without access to ...

Polymers cells are the next-generation class of photovoltaic since they promise realization of light weights, mechanically flexible, larger area devices. The room temperature solution processing can be used in fabricating these devices. High-efficiency conversion power of about 10% has recently been obtained in tandem polymer cells (Huo et al., 2015). In single-junction, it’s achievable through lowering the density state to a level lower than the electron acceptor and the conduction band of the semi-conductor. Photovoltage is electromotive force obtained by a photosensitive material due to inducing radiant energy; photovoltaic relates electric current produced at a junction of two ...

Use of Fossil Fuels for Power Generation and the Need for Renewable Energy

According to Nelson (2011), more than 85% of the world’s energy consumption, which is estimated at 520 exajoules, is generated through the burning of fossil fuels such as petroleum, natural gas and coal (p.19). Electric power generation from non-renewable sources will, unequivocally, result in their exhaustion and creation of a major energy crisis. For this reason, it appears primordial to shift in a greater scale to alternate power generation, such as solar, wind, hydroelectric, etc. Amongst these, Sorensen (2011) explains that though hydroelectric power does represent one of the major forms of power generation, its growth is stagnant ...

Benefits of Green Schools in Kuwait

CHAPTER 1: INTRODUCTION Kuwait is a country located in the Middle East, which is a region characterized by severe water shortages as its located in the middle of a desert. Also, nearly all the electrical energy consumed in Kuwait is generated from fossil fuels such as natural gas and diesel. This situation poses several challenges. For example, the lack of enough clean water for domestic use could lead to serious problems such as waterborne diseases, such as cholera or typhoid. Also, water shortages can affect businesses such as agriculture and hospitality businesses. On the other hand, over reliance on ...

Iran’s nuclear program is one of the most controversial issues that concern many nations, especially its neighboring Arab countries, Turkey, and Israel. Iran agreed to repudiate its ownership of weapons of mass destruction that includes chemical and biological weapons through various treaties. Iran has also ratified the NPT or the Nuclear Non-Proliferation Treaty (Federation of American Scientist), which made Iran’s nuclear program a subject to IAEA’s verification. Iran’s nuclear program was initially cancelled right after the revolution in 1979, but it was revived during the latter part of war with Iraq in 1988. It has ...

Introduction

The Wide-Band Code Division Multiple Access (W-CDMA) is a third generation handset system that achieves high data transmission by utilizing a wider spectrum frequency. Issues that arise in handsets such as a low spectral growth and maintenance of modulation accuracy require a low adjacent channel leakage power ratio (ACLR) especially in the case of the W-CDMA handset systems. High linearization in the portable W-CDMA systems can be improved by increasing the gain compression point that creates the AM-AM distortion. As such this can be achieved by using an on-chip linearizer. A new on-chip active bias circuit can be used ...

Abstract

This is a practical experiment on ECG with regards to human physiology. The experiment was intended to achieve one primary goal: equip the learner with vital skills pertinent in making rational decisions anchored on scientifically proven facts. The alchemist recruited study participant from both sexes with varying levels of nutritional statuses and physical activities. The foods consumed by each participant were recorded. The results indicated that those who took caffeinated drinks positively correlated to emission of rapid ECG signals demonistrated by the ECG readings.

Introduction

The heart is a fundamental organ in sustaining life. It contracts at regular and perpetual ...

Market Research Plan

Before a company decides on the manner of delivering a new product to its market, it has to conduct a market research so that it can define some of the ways in which it can maximize the implication of the launch. The business entity of focus in this paper is a fashion apparel store called Diva Junction. This firm plans to introduce a new product in the form of sun dresses in preparation for the approaching summer. The business has been in existence for about five years and despite this experience in the market, the product is has been ...

Oedipus, the King of These in Sophocles’ Oedipus Rex is guilty of both incest and patricide. The proof of Oedipus’ guilt can be found in what vague description of what he knew about Laius and Jocasta. As a man who knew about the oracle’s prophecy, he should have exercised caution when he was confronted by an old man. Oedipus’ failure to connect the dots is deliberate since people could have been able to decipher that the individual who was responsible for the death of Laius was Oedipus who makes his entrance into Thebes two days after the junction ...

The North Sea Petroleum Province is made up of Northern and Central North Sea. This is the greatest oil producing region in the world. It has been, for the last 30 years, playing a major role as Britain’s resource base and a contributor to the country’s wealth. This region also touches Norway and the Shetland Islands which are part of the Northern arms of the Late Jurassic system. This report gives an account of much of what is already known about Petroleum geology, Palaeogeography and tectonostratigraphic development of the Upper Jurassic, Middle Jurassic and the Lower Cretaceous rocks in ...

- Linear and Non-linear devices A linear electrical component is an electrical element that has a linear relationship between current and voltage in a circuit. Examples include resistors, capacitors and inductors. Non-linear electrical elements do not have a linear relationship between the current and voltage. An example is a diode where the current is a non-linear function of the voltage. The load line analysis is a graphical analysis of the characteristics of non-linear electronic circuits to show the constraints that is placed on the non-linear devices by the rest of the circuit. Using a simple diode (a non-linear electronic device) to explain the ...

The nervous system can be divided into two groups: the central nervous system (CNS), which comprises of the brain the spinal cord, and the peripheral nervous system (PNS), which consists of the nerves. Nervous tissue consists of two types of cells: the nerve cells and supporting glial cells (or simply glia). Glia have different types and outnumber nerve cells. In the CNS, astrocytes provide structural support for neurons, regulate the extracellular concentrations of neurotransmitters and ions, and facilitate information transfer at synapses. Radial glia is critical in the development of the nervous system. Both astrocytes and radial glia can ...

Introduction

Alternative renewable energy continues to grow popularity because of the upsetting climate change caused by greenhouse gases, exhaustion of non-renewable energy resources and rising global demand for energy. Renewable resources of electricity production are vital progress and are fundamentally motivated by cost. Solar energy is clean and profuse that is why it is the best among the available substitutes. The modern solid-state photovoltaic (PV) technology began in 1954 upon the discovery of silicon (Si) diodes photovoltaic effect . Crystalline Si and a wide range of thin film solar cells, which are inorganic, are the prevailing photovoltaic technologies employed nowadays . ...

Introduction 3

Background on Report 3 Current Technologies Photovoltaic (PV) Solar Technology 5 Concentrated Solar Power (CSP) 8 Solar Heating and Cooling (SCH) Technology 10 Analysis and Recommendation 11 Conclusion 12 Figures and Tables Figure 1: Diagram of a P-N junction in a Photovoltaic Cell 6 Figure 2: A Typical Parabolic Through CSP System 9 Figure 3: Wakiki Shore Apartments in Honolulu, Hawaii 11

Used in Contemporary Society

Introduction The use of fossil fuels results in combustion gases which contribute to global warming. Furthermore, these combustion gases result in air pollution which is detrimental to the ...

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TA’s Name: ABSTRACT This laboratory report examines a two-part experiment carried. The first experiment was carried out to test both the Kirchhoff’s loop and junction rule. The results of the experiment have been presented in the report. Using the results collected the loop and junction. The second part of the experiment involved determining the Kirchhoff’s loop and junction rule. The maximum power transfer equation has been derived in the report.

Objectives

The object of the experiment is to test both the Kirchhoff’s loop and junction rule. The experiment was also aimed at determining how maximum ...

Why Nations Faillooks to the past as well as today’s world in order to answer the age old question of why some nations prosper while others fail. Historically some countries’ citizens are considered wealthy, their nations in rich material goods, education and freedoms while and others are perceived a generally poor, or divided by lines of wealth and poverty. It is obvious by looking at more universal factors of culture, weather, and geography that countries with similar external and internal factors can enjoy, or suffer different circumstances. North and South Korea and East and West Germany are evidence ...

INTRODUCTION

In recent times, there has been an intense exploration of the Tunneling field effects transistors. This is because it has been discovered to have the potential to offer a way out of many concerns, especially the power concerns, in nanoelectronics. “Graphene nanoribbon was recently discovered and has been deemed ideal for tunneling FETs,” [1]. For graphene nanoribbons tunneling transistors, the subthreshold swing has been investigated to be a nonlinear function of temperature. The graphene nanoribbon has been declared as the best candidate for tunneling field effect transistor owing to its compatibility with planar processing, direct and narrow band gap, and low ...

- Introduction Solar cells function by converting solar light energy into electricity. It functions on the basis of the photovoltaic effect. “Photo” stands for light and “voltaic” means electricity (light–electricity). A solar cell is capable of providing DC current. This DC current can be used to light bulbs and power DC motors. Rechargeable batteries also use this DC current, which can be utilized later on when the sun is not available. Also, these batteries, when fully charged, are portable and can be used wherever and whenever you want them (De Vos, 1980). Solar cells are comparable ...

Aims and Objective

The highways part aims to provide the student the basic understanding of highways design construction. An understanding of highway design construction needs an understanding of the practices associated with the rote selection is the traffic flows, vehicular behavior, and highway capacity, and also other environment. It is also aims the student to provide the basic understanding of the pavement and the traffic signals.

Learning Outcomes

This case study is to aims to give the student an experience of completing the exercise. The highway route selection, carriage stand, and the pavement design. This allow the student to become proficient in skills to ...

Does market Democracy offer an attractive reconciliation between Classical Liberalism and High Liberalism?

A market democracy is also known as democratic capitalism or capitalist democracy. This is defined as a social, political and economic system that is a tripartite kind of arrangement. It is an economy that is market and democratically based. Here, the government gives economic incentives through fiscal policies and free markets. On the other hand, classical liberalism is defined as an ideology and philosophy that belongs to the liberalism school of thought. It emphasizes secure freedom of individuals that has a limited kind of government. In this kind of liberalism, the government does not have much power or control. The power is ...

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Part 1. Solar Panel History

The history of Solar panels takes it beginning from the 7th Century B.C. Now, the energy sector of economy has the greatest impact on our lives. Power supply is the basis of the normal functioning of any production, and, consequently, the entire human civilization. Heat and light homes, work machines and units in production, traffic and rural suffering - all these many faces of Energy. Various technological advances have already become part of life for us, but they are possible only when adequate and affordable energy supply, due to the development of alternative energy sources, ...

Question 1

The cerebellum is an essential part of the neuromuscular system in that it plays major roles in the timing of muscular activities and the smooth progression of one muscular movement to the next. The summary of how this is done is that it sequences all the muscular activities necessary for a particular movement, and then makes corrective adjustments as necessary when the movement is being executed so that they conform to the motor impulses being generated by the cerebral cortex and other significant parts of the central nervous system (Ganong, 2005). For instance, for an individual holding a cup and ...

Kirchhoff’s Laws are fundamental in the analysis of electrical and electronic circuits. They describe the behavior of linear circuits accurately, and work well with approximations in other types of systems as well, making them extremely useful (“Electrical Principles”, 2013). Further, they are more popular and widely used than Maxwell’s equations, from which they can be derived. This is because Maxwell’s equations are very complex and involve brute Mathematics to solve even simple circuits, while the Kirchhoff’s laws are relatively much easier to use in most cases.

There are two laws which were given by Kirchhoff:

1) Kirchhoff’s Current law (KCL) 2) Kirchhoff’ ...

Lab Report: Common Emitter Amplifier

Acronyms and Abbreviations AC Alternate Current BJT bipolar-junction-transistor DC Direct Current mA milliAmps

PNP Positive-Negative-Positive

Q point Quiescent Point RF Radio Frequencies Lab Report: Common Emitter Amplifier

Introduction

A laboratory was conducted to evaluate the characteristics of a common emitter amplifier. The configuration is a bipolar-junction-transistor (BJT). Transistors allow current to flow from positive to negative states or from negative to positive states. A transistor board was supplied for the experiment. Five activities were done during the lab: a DC analysis, An AC analysis gain at midband (with bypass capacitor in circuit), AC analysis gain at midband (with no ...

Abstract

Researchers from the University of Washington and Fred Hutchinson Cancer Research published a study in Nature based to demonstrate the identification of immunological role of a class of cytotoxic T cells in genital herpes. They identified the cells to be CDT cells that primarily exist in the skin of genital region and mucosa. These cells inhibit the recurrence of genital herpes. Since they suppress the replication of the HSV-2 virus, at the site of recurrence they also prevent symptoms in the patient.

Genital herpes is a sexually transmitted disease affecting more than 24 million people in the US and 60-80 million ...

The field of study that is under examination and will be a major highlight of this press release is the discipline of biological chemistry. The main are of research and study regarding this discipline will focus on human genetics with an objective of revealing the techniques that implement successful gene manipulation in human beings via the use of specialized technology to aid in achieving this scientific operation I intend to tackle the queries regarding conducting this experimental approach is viable and will be successful. The research and study I will be conducting is aimed at investigating whether gene knockout ...

Abstract

Gastroesophageal reflux disease (GERD) is due to weakening of the lower esophageal sphincter tone and is thought to be one of the most common disorders of the gastrointestinal system (Harrison’s, 2008). The loss of tone in the lower esophageal sphincter (LES) allows gastric contents to flow backwards into the esophagus (Kahrilas, 2013), causing damage to the normal esophageal mucosa. Simple measures, such as lifestyle changes can be employed to try and live with the condition, but usually the treatment is medical with various drugs to make the pH of the gastric acid less acidic as to lessen the ...

Introduction

Tectonic Plate refers to a massive, slab of solid rock that is irregularly shaped, and it is composed of both oceanic and continental lithosphere.

Definitions

Mid-Ocean Ridge refers to an underwater mountain range that forms due to plate tectonics. This structure is formed through two tectonic processes, ridge-push and slab pull that cause the spreading at mid-ocean ridges. Basin and Range topography refers to structure that is characterized by sudden changes in sloping and is alternating in between the narrow chains of faulted mountain and flat arid basins or valleys. They are formed by crustal extension or extensional tectonics. ...

Introduction

Accurate temperature measurement is a very vital and common requirement in every industrial instrumentation process. It is however very difficult to achieve this objective. Unless the techniques used to measure temperature are proper and effective, massive reading inaccuracies can occur leading to the accumulation of useless data. This is where the thermocouple comes into play. This device is a temperature sensor that is widely used in all corners of the globe. It has very many favorable characteristics and these include: high inherent accuracy; wide temperature range suitability; high reliability; great application versatility, fast thermal response and relatively low cost. The thermocouple ...

Ahmad Al-Obaidly

Abstract—In this experiment, a hand dynamometer was used to measure the grip strength of a subject. The forearm muscles were engaged in an activity, and the grip recorded. The electromyogram (EMG) activity was related to the grip strength by making a graph of the maximum grip strength against area under the EMG activity’s absolute integral during the contraction of muscle. Data was recorded from the dominant and non-dominant forearms of the subject and the electrical activity of each forearm compared to its diameter. Prolonged grip strength was also recordings and forearm EMG activity made to determine fatigue rate in both ...

A condition affecting the system of veins in legs with venous hypertension resulting in different pathologies that involve swelling, ulcerations, pain, skin changes, and edema is called chronic venous insufficiency (Eberhardt and Raffetto, 2005). It is necessary to understand normal venous function and anatomy to analyze the venous insufficiencies pathology. The peripheral venous system serves as a conduit returns blood into the heart and as a reservoir where blood is stored. Appropriate operation of the peripheral venous system is dependent on a series of muscle pumps and valves (Eberhardt and Raffetto, 2005). Blood entering the venous system of lower extremities has ...

Abstract

An operational amplifier – OP-AMP is a circuit device that amplifies buffers or attenuates the input signal depending on the configuration. Amplified signal means that the output is greater than the input. This means the gain is larger than one. A buffered output means that the magnitude of input is equal to the output; only that the input has been delayed. An attenuated signal implies that the gain magnitude is less than unity. In this paper, amplification using an op-amp will be investigated. Inverting and non-inverting configurations will be connected and tested. Input waveforms and output waveforms will be compared. It ...

Lab Report (Kirchhoff’s Laws)

Introduction This lab experiment was intended to learn and apply Kirchhoff’s Rules in calculating the current and voltages in a circuit. To achieve this, a circuit is built consisting of resistors that are in parallel and series which will aid to test the different aspects of Kirchhoff’s Rule.

The simplest circuit is that which can be reduced to an equivalent circuit having a single resistance

and a single voltage source. Many circuits are not simple and require the use of Kirchhoff’s

Laws to determine voltage, current, or resistance.

Objectives: forecast by Kirchhoff’s Laws.

Theory:

A junction is a point in a circuit where more than three wires join or where a current gets divided. A loop is a path which is closed by two ...

Abstract

This paper adequately and sufficiently dwells into the concept and usage of cooling systems in computers. It talks about the advents which have been made in the cooling technology right from the very starting to the modern times. It discusses and elaborates on the different kinds and types of cooling systems available and their respective advantages and potential, if any, disadvantages.

Cooling Systems in Computers

According to Moore’s Law the number of transistors on a chip will double approximately every two years. Since 1965 this law has stood the test of the times and consequently the performances of computers have increased while their ...

4. Methodology As this experiment is considered as an improvement to the previous experiments, the other cars that might appear on these pictures were controlled by removing any other cars that appear on these pictures, except the approaching one. Then on the opposite lane, pictures of one or two cars were added to act as distracters. By this method, the road was transformed from an empty road, to either mild or high busy road creating another factor that can be tested (Traffic Density factor). This factor can be acted as more realistic (see figure 4.1). Figure 4.1 ...

Cut Off Region of a Transistor

The transistor goes into the cutoff region when the base current (IB) is equal to zero. The collector leakage current ICEO under such conditions is quite low due to the effect of thermally-generated carriers. This means that ICEO can be neglected in the circuit analysis such that VCE will be equal to VCC. During the cutoff region, both the base-collector and the base emitter junctions are reverse biased. Subscript CEO means a representation of the collector to emitter with the base open. This is represented in the circuit below.

Saturation Region of a Transistor

Forward biasing of the base-emitter junction increases the base current. Consequently, ...

1.0 Introduction

On 11th December, 2005 a series of explosions occurred at Buncefield oil storage depot leading to massive losses in both commercial and residential property therefore this report addresses the case study of Buncefield; it also explains and gives reasons for the mitigation measures I recommend that the public and private sector organizations can employ to avoid a re-occurrence of such an incident. Some of the measures are: control and safety systems for petroleum storage, land use planning and control of societal risks around major hazard site, protection against loss of containment and also constant review on the maintenance and replacement policy ...

Myasthenia gravis

Myasthenia gravis is an autoimmune disease characterized by the production of antibodies, which are directed against nicotinic acetylcholine postsynaptic receptors located at the neuromuscular junction. This leads to a gradual decrease in the number of acetylcholine receptors at the postsynaptic neuromuscular junction. There are two different variants of myasthenia gravis, which include the ocular myasthenia gravis and the generalized form of myasthenia gravis. The result of the reduction in the number of acetylcholine receptors lead to a concomitant reduction in the muscle strength (Paul, 2000). However, there is recovery of the muscle strength resting it for some time (Kulkantrakon & Jarungkiatkul, 2010), ( ...

CHAPTER 2: FIRE SPREAD

Chapter 2: Fire spread 2.1 Introduction The chapter discusses aspects of fire spread so as to understand spread of fire, fire transfer, and how fire moves or escapes. Most fires spread quickly in buildings because of the presence of combustible materials like furniture, and flammable gases. Controlling of fire spread is easy in the first stage also referred to as the insipient fire. Nevertheless, fire can move swiftly and even reach higher speed limits in the presence of assistant factors found in gaps or penetration inside a building. Internally, spread of fire is common in obscured spaces, ...

Definition and history of stomach cancer

Stomach cancer also called gastric cancer is a disease that is characterized by the uninhibited proliferation of abnormal cells in the tissues lining the stomach. These cells are abnormal in the sense that genetic mutations render them autonomous hence they are not under the control of growth regulating signals. Gastric cancer used to be the second most prevalent cancer but sharp declines have been seen in its rate in the developed countries especially over the second half of the last century, for instance it is the fourteenth most common malignancy in the United States. However, the same cannot be said ...

a) Explain why the effort of hormonal (Endocrine ) control tends to be slow whereas nervous control is usually very fast.

Endocrine control is normally slower when compared to nervous control majorly because hormones once released by the endocrine gland have to travel via the circulation to reach their target receptors on the effector organ which generally takes more time. Meanwhile, information relayed by nerves is in form of impulses (that is, action potentials generated due to electrical excitation produced by a change in the charge across the surface membrane of the neuron evoked by the stimuli) that simply travel along the ...