Essays on Pressure

Right atrium temporarily carries deoxygenated blood from body tissues. It receives deoxygenated blood from the upper portion of the body via superior vena cava. In addition, deoxygenated blood from the lower portion of the body enters the right atrium via inferior vena cava. Upper portion of the body carries the head, neck, and other organs situated superior to the heart while lower portion carries legs and other body parts situated superior to the heart. As more blood enters the right atrium, it fills up. This makes its walls to contract causing pressure to build up. The pressure causes the

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- Pressure= 1000 x (0.5)5.6/5.6
Pressure=500 mb
Pressure=1000 x (0.5)8.85/5.6
Pressure=334.40 mb
Pressure=1000 x (0.5)11.2/5.6
Pressure=250 mb
Pressure= 1000 x (0.5)50/5.6
Pressure=2.05 mb
- The temperature of the upper stratosphere is greater than that of the lower stratosphere due to the presence of the ozone layer. It is here where ozone absorbs ultraviolet light, which triggers chemical reactions. These chemical reactions produce heat, a process which is not found in the lower stratosphere.
- Conduction is the transfer of heat through solid objects such as metal and wood when the molecules come in contact. Conversely,

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Chemistry

The system will start by using the procedure for normal capillary cycle. It will be allowed to run for five to ten minutes in order to stabilize. The process will start with evaporation of the refrigerant, taking heat from the low temperature part of the system and giving it out to the high temperature part of the system. The refrigerant must meet the requirement of having a vapor pressure of above one atmosphere at the refrigeration temperature but, not high pressure at the heat rejection temperature. We will take the wattmeter readings for the calculation of the power in

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1. Convergent-Divergent nozzle experiment
When the downstream pressure in a converging diverging nozzle reduces below a critical value, no further reduction in throat pressure or increase in mass flow rate occurs. Under this condition, the nozzle is said to be choked.

Pressure: U-Tube manometers to measure the pressures in the nozzle relative to atmospheric pressure.

• A water manometer is connected to the inlet pressure tap (P0-P1).
• Mercury manometers are connected to the throat (P0-P2) and downstream (P0-P3) pressure taps.
• Atmospheric pressure, P0, to be read on the barometer.
2. Objectives

The objective of this experiment is to find conditions that give choked flow. These conditions include;

• To find choke velocity, UC
• To find Critical Pressure Ratio, P2C/P0
• Compare to Theoretical Values for Isentropic Flow
Additionally, the results of this

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Volcanic Disasters in Modern and Ancient Times: A Comparison

This essay will address social issues concerned with the volcanic eruptions. As it is an interesting topic, I will be writing about two volcanic disasters. Firstly, I will discuss the A.D. 79 Eruption of Mount Vesuvius. Secondly, I will talk about the 2013 Eruption of Sumatra Volcano. Later, I will be making a comparison between the mentioned volcanic eruptions and the damage they caused.
The question is what causes volcanoes to erupt? An eruption starts when there is a pressure on magma chamber. This pressure forces magma to rise up through the conduit and come out

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Report on the ‘Ambassador’ and how to improve it

In contemporary times, there are several available nozzles, designed differently for firefighters use. However, getting the best design that would be effective in combating fire incidences is very significant to save lives and properties. The ‘Ambassador’ is a specialty fabricated automatic machine with hybrid capability to perform as an automatic pressure or a fixed gallonage nozzle. It is a very handy machine for firefighters in battling incidences of blaze outbreaks. The machine is fortified to automatically regulate flows in order to maintain on frequent basis tip pressure. This enables fire fighters handling the equipment to have effective range for

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Q1, Q2, Q3, Q4, and Q5 Essay

<Tutor>
<Department>

Q1. Anaphylaxis identification, management and prevention

Anaphylaxis is referred to as an allergic reaction encompassing anaphylactic shock as a severe manifestation of the said allergic reaction according to Sinclair (2010). The average number of the people believed to be at risk of the aforementioned condition is about 1 to 15% if exposed to certain allergens. Experts believe that the estimated figures vary depending on the definitions of reaction (allergyfacts.org.au, n.d.). During an anaphylactic attack, the patient’s body reacts badly to allergens causing by food, venom, medication, and or insect bite. The body has a natural defense mechanism that fights the

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(e) Estimate the average pressure loading on the pressure vessel and use the standard equations for thin-walled pressure vessels to make an estimate by hand calculation of the pressure vessel wall thickness required to give a Factor of Safety of not less than 2 using whichever of the two failure criteria gives the safer result.

Conclusion

- The weight is calculated with accuracy of -0.22(%) for the empty vessel.
- The weight is calculated with accuracy of -0.05(%) for the filled vessel.
- The calculated stress is verified by its comparison with hand calculated membrane stress.
- Von Mises and

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‘Instructor’s Name’

Langston Hugh's poem "Harlem"
In 1951, the year in which Hughes’ ‘Harlem’ was published, the mood of the American Blacks was one of frustration and disappointment. To fully decipher the meaning of this poem it is important to understand the context in which it was written. Though slavery was outlawed after the civil war and many rights, like right to vote and own a property, were granted to the African Americans, racial prejudice that existed in the then society had relegated them to an inferior position than the Whites. The World War II was over and America had opposed

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Petroleum and natural gas originates from the remains of prehistoric plants and animals had settled in the seas alongside silt sand and rocks. These rocks and silt settled in layers in rivers and sea bottoms. This trapped the organic matter which did not rot as a due to lack of air within this environment (Thomas 2005). High pressure and high temperatures transformed these sand, mud and silt into rock which gradually transformed into petroleum. This is how petroleum and natural gas if formed. Coal on the other hand originates from the plants and other organic life forms which died

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Peer pressure can be seen as the control or influence people have on others especially people of the same age group. Contrary to the common notion that peer pressure can only impact negatively, peer pressure is often positive in some instances. As teenagers grow, they tend to be more attached to their social groupings as compared to their parents especially in terms of making choices and choosing solutions to certain issue. However, the determinant of whether peer pressure is positive or negative is majorly dependent on the end result. If the consequences are undesirable, it is considered negative peer

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This essay paper shows how the use and effective use of carbon dioxide as a fire protection system for the hazard of bulk hydrogen gas facility. This paper will provide the information on the advantages and disadvantages of using carbon dioxide as an agent for fighting fires resulting from the hazard of hydrogen.
Fire protection systems involving gases allow for the use of fire fighting agents such as carbon dioxide, wet chemicals or dry chemicals and foams. Carbon dioxide has been the most successful fire suppression agent that has been used for many years in many countries worldwide. It

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Vasovagal syncope is a condition that results in fainting mostly experienced by healthy people. The condition would be due to a fainting spell or response to an unpleasant trigger. It tends to occur when the heart rate or blood pressure reduce significantly. The low blood pressure could be due to a body reaction to a certain trigger such as the sight of blood or other extreme emotional distress. The Low blood pressure leads to reduced blood flow to the brain and subsequently ends in a brief loss of consciousness. The loss of consciousness attributable to the lack of blood

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Introduction to Wave

Wave motion is known as transfer and moving energy from one point to another, wave is also referred as oscillation or disturbance that travels along the matter or space. There are two categories of waves they include transverse and longitudinal waves. In longitudinal wave particles of the medium are displaced in a direction parallel to the energy transferred while in a transverse wave particles of the medium are displaced in a direction perpendicular to the direction of energy transferred (Hewitt & Paul, 35).
Waves can be moved along ropes across the surface of strings and water. Some waves can travel

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Managed Care refers to techniques used by organizations to reduce the cost of health care facilities and to improve its quality. There are several managed care contracting terms which need to be understood before they are used in the campaign. Few of these are listed below and explained.
- Balance Billing: The patient is expected to pay the physician for any charges over and above the insurance coverage. It is important for people to understand this in order to avoid confusions.
- Dependent: All individuals apart from the employees themselves, who qualify to benefit from a health care plan.

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Introduction

Fluid mechanics can be described as the application of laws of force to the concept of motion of fluids. The mechanically produced force is used to move a fluid form through a designated routed in order to perform a certain operation. This paper focuses on the centrifugal pump as an equipment that generates the force require to move a fluid through a route in relation to the monitoring and measuring fluid behavior.
The centrifugal pump is one of the widely used equipments in hydraulic systems. They operate on the centrifugal force principle. The principle requires that a force be

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Introduction

The name diamond owes its origin to Greece. The term is a corruption of the Greek term Adamas, which means the invincible or the unbreakable. In mineralogy, diamond refers to an allotrope of carbons, which is capable of transiting from one state to another. The carbon atoms within the mineral are arranged in a cubic-centered crystal known as the diamond lattice. The diamond mineral has the formula C and exists in Isometric-Hexoctahedral (cubic) crystal system. It is also essential to note that diamond exists in the space group C63/mmc.
Diamond exists in different varieties, as distinguished by their colors.

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Cause and effect analysis is a very important part in modern research. It is perhaps the most reliable research parameter currently available to man. Peer pressure is a major problem in modern society. Many young people are acting in peculiar way perhaps different from the ways they did previously. The following essay uses the cause effect analysis to analyze peer pressure. Under the cause the essay shall explore the behavior of a person before getting into a particular group. The essay will look into how the behavior of the person changes after they get into the group and why.

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A code can be defined as a law or regulation that specifies minimum standards to protect public health and safety like for example the codes of construction of buildings. A standard on the other hand can be defined as a set of technical definitions and guidelines that function as a set of instructions for manufacturers, designers, operators, or users of equipment. Codes and standards teach engineers of how best to meet health, environmental, safety and societal responsibilities (American Society for Mechanical engineers, 1984). It has been argued that many health and safety related problems can be avoided through the

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A stroke is a cerebrovascular event resulting in rapid functional cell death in local tissue. Strokes, also known as cerebrovascular accidents (CVA) are a major cause of disability globally (Doyle, Simon, & Stenzel-Poore, 2008) and occur due to a disturbance in the blood supply to the brain. This disturbance in cerebral blood flow commonly results in a period of ischemia, an interruption to the delivery of oxygen to the brain tissue. Focal ischemia due to occlusion of brain artery is the cause of more than 80 % of all strokes (Flynn, MacWalter, & Doney, 2008). The other

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Hypertension which is also known as high blood pressure is a condition in which the arteries have persistently elevated blood pressure. It is a dangerous disease that can lead to other illnesses such as heart failure and stroke and it can also lead to damaged organs. Although hypertension is a dreadful disease, it can be treated by lowering blood pressure to less than 140/90 or probably lower in certain circumstances (Hays, 2009, p. 212). Alongside that, it can also be treated by changing lifestyle factors or treating it medically. Hypertension is the biggest risk factor for cardiovascular disease which

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One of the main problems of classical mechanics is that of turbulent fluid flow. The reason for this is that there is the presence of thin no-slip boundary which requires a lot of meshpoints in order for the solution to be arrived. There is a research which has been arrived and researched upon which shows that with the use of slip boundary condition to be the model for friction to be achieved for the small skin, there is the possibility for predictive simulation for mean quantities. An example of such mean quantities is the drag and lift turbulent flow

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The rocks beneath have rich deposits of oil and gases that can be purified to supplement the energy requirements. Several researches are done to establish the sites with considerable quantities of oil or gas and sometimes the presence of both. Once this is established, a number of factors are considered in the underground environment to establish the safety precautions and the nature of the extraction procedure to be used. The principle behind oil and gas extraction relies on the accumulation of pressure in the underlying rocks. The processes are divided into three basic extraction levels, primary, secondary and enhanced

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Introduction

Food security exists when people have unconditional access to adequate food with the necessary nutrients to sustain healthy life styles. According to FAO, food security is different from famine even though both states have some close relationship. Population refers to the number of people in a particular area at specific time. Population growth in turn explains the rate at which the occupants of a certain area increase over a specific period of time, like a year. This paper will explain the link between food security and the rate of population growth in China by exploring the extent to which

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Majority of world birds use flight as their main means of locomotion. Flight is the only way that birds use to many the dynamics of its environment. Flight is in the help of birds in breeding, avoiding predators and feeding. The mechanics behind flights in birds is a complex mechanism, which involves various adaptations that and the utilization of wings by birds. The whole process of birds’ locomotion, hovering and landing is a unique mechanism that birds are adapted to facilitate their living. The basic mechanics of birds include lift, Drag, Gliding, Flapping and wing.

Lift

The flowing of air

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With the high pressure and fast-paced lives that people live, it leads to many family and job responsibilities. The major causes of stress include money, work and economy. There are also stress-related habits that are unhealthy and they include eating unhealthy foods and overeating. The technological innovations and the demands from the daily life lead to stress. All people have to live with stress but if it not controlled well it has profound effects on the body and the mind. Individuals need to gain control of their lives and develop mental strength to curb stress coming from different areas

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Individuals in a Free-Living Environment

Individuals in a Free-Living Environment
The objective of the study was to provide information on the effects on blood pressure of following a DASH (Dietary Approaches to Stop Hypertension) diet program in a free-living environment without any adjustments in a person’s behavior and lifestyle (Malloy-McFall, Barkley, Gordon, Burziminski and Glickman, 2010, p. 15). To test their hypothesis, the researchers used a controlled study design, whereby one sample group followed the DASH diet as the control continued with their normal diet. The study sample comprised 20 participants (n=20), who were classified into two groups, DASH and the control sample.

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Introduction

Fire sprinkler also referred to as sprinkler head is the component of a fire sprinkler system that discharges water any time there is a fire or rather when a fire has been detected. This comes even when the increase in temperature as the fire sprinkler system is actively used in fire protection. The system consists of a water supply system that provides adequate pressure and flow rate of a water distribution piping system where the sprinkler is connected. Fire sprinklers have been recorded to control fires in buildings that are fully fitted with fire sprinklers. The fire sprinkler also

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who have had an ischemic stroke

BACKGROUND

Prolonged lowering of a patient’s blood pressure after a stroke occurs has been observed to reduce the risk of recurrent stroke. Additionally, the inhibition of the renin-angiotensin system in with regard to high-risk patients has also managed to reduce the rate of subsequent cardio vascular events, which includes stroke related complications. However, the effect of lowering a patient’s blood pressure using a renin-angiotestin system inhibitor such as Telmisartan, soon after an ischemic stroke has occurred has not yet been clearly established.
According to previous research studies and statistics retrieved from WHO,

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reinforced with Aluminium glassy alloys

Engineering

The effects of mixing time, sintering temperature, sintering time and pressure on mechanical properties of a metal matrix composite (MMC) reinforced with Aluminium glassy alloys

Introduction

Metal Matrix Composites (MMCs) are an important class of engineering materials because they can continually be adapted to suit the needs of manufacturing and newly available technology. MMCs using aluminium as a basic ingredient can be designed to meet particular needs for high performance materials. Duralumin™ was the first aluminium alloy demonstrating the ability to result in a material with very high temperature strength after solution treatment and aging (

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Sufficient sleep is a key component to physical fitness

Sleeping is a doing word that is used to explain a situation where a human being or living creature is in a state where the activities of the body are in a rest, so that one is left dormant i.e., unable to think and act. A good sleep is therefore a key towards a healthy life. Take a look at day to day activities that are aimed at achieving some set of objectives; one has to do multiple activities at a go. The same activities are not considerate on the human body parts that contribute to coordination of the

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A Concise Study and Proposed Computer Applications

Introduction
Venice is one of the most prosperous cities in all of Europe. Its wetland setting and breath-taking water infrastructure are perfectly extraordinary. The city stands on 118 small islands, even though its buildings are believed floating on water or anchored to the seafloor by unknown mechanism. A couple of centuries ago, evident consequences happened due to subsidence and sea level increased substantially. At the rate of 2 millimeter per year, the city sinks gradually. However, not until 1966 when a major flood occurred, the water rises above 1.9 meters. Due to this sudden calamity, the Italian government made

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Mechanism of hydraulic systems in aircrafts

Hydraulic system in aircrafts consists of a system in which liquid under pressure is utilized to transmit energy. The power from the engine is converted by the hydraulic systems to hydraulic power. Several hydraulic systems existing in an aircraft include the landing gear, brakes doors and control boosters. According to Roskam (2000), some of the components that are part of the hydraulic system include hydraulic fluid reservoir, accumulators, hydraulic pumps, valves, and lines for distribution and controls located in the cockpit to operate the different functions of the hydraulic system.
The hydraulic system has an actuating cylinder that functions

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The process of weathering deals with the breaking down of minerals, soils and rocks as well as synthetic materials as a result of contact with the atmosphere, biological entities and water. Weathering is slightly different from erosion, because it does not involve movement. Erosion involves the movement of water, wind, snow or other agents across minerals or rocks. Weathering simply takes place “in situ.” There are two significant types of weathering, chemical and physical. Each can involve a biological component, but the difference is that physical weathering has to do with soils and rocks breaking down as a result

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Introduction

Hypertension, commonly referred to as high blood pressure, is a medical condition which comprises of incessantly elevated blood pressure in the arteries. Hypertension may cause damage to the organs and several illnesses including renal failure, heart failure, heart attack or stroke. According to (Luehr, Hayes, Johnson & Burke (2012), close to 30% of the adult American (U.S.) population have hypertension. Majority of these people are those over 65 years. This means that nearly 66.9 million U.S. citizens have hypertension. This number is predicted to rise as the number of those above 65 years continues to rise. Poor adherence to medication

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Experimental Results

Where the gravitational acceleration g=9.81ms2

The formulas that were employed in the writing of this report included the following,

Es1=Es2, where Es=y+V22g Eq. 1
Velocity, V=qy;where q=QB Eq. 2
coefficient of contraction, cc=yx Eq. 3
velocity head=V22g.m Eq. 4
Momentum theory:0.5ρgy12-Fg-0.5ρgy22=ρqV2-ρqV1 Eq. 5
Froude Number; Fr=Vgxy Eq. 6
Conjugate equation; y4=y32×[1+8Fr32-1] Eq. 7

Calculations: Part 1

For detailed calculations refer to the appendix.
Q=7.948×10-4m3s;q=9.947×m2s; V1=0.071ms; V2=0.09ms
Velocity head1=2.57×10-4m; velocity head2=4.13×10-4m
Es1=Es2. Therefore, we have;
0.125y23-0.018y22+6.317×10-7=0,∴y2=0.006 m; cc=y2x=0.0080.01=0.8

Calculations: Part 2

Detailed calculations are to be found in the appendix.
V3=0.711ms; V4=0.343ms;0.5ρgy12-Fg-0.5ρgy22=ρqV2-ρqV1
Therefore, Fg=85.59 Nm; Fh=0.5×1000×9.81×0.141-0.012=84.17

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Abstract

This dissertation paper is based on the development of the equations used for the design of CFA piles and more specific on granular soils. Tests that may be used in obtaining the required geotechnical parameters used in the designing of the equations are also reviewed. The tests based approaches are to allow contractors and designers to come up the best piles required for a certain project due to the parameters identified. Assumptions and errors resulting in the equation design are also covered. Present. Step-by-step method formulations of equations that are used for designing CFA piles are presented.

Key WordsCFA, drilled displacement piles, CPT, PDT and testing.

Dissertation style

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Engineering

Abstract
Continuous Flight Augers (CFA) require special expertise to construct but done properly they are economical and very successful for areas with inconsistent load carrying capacities. Examples include using CFA pilings for guard rails, highway reinforcement, highway junction improvements and buildings. The CFA pilings are similar to driven and bored piles but offer different advantages when working in good to marginal soils and in projects where the load capacity needs vary. An auger with a hollow tube is used to bore the hole and then when the auger tip reaches the final depth concrete is added as the auger

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Pressure has over the time has been an important aspect in the thermal sterlialization of food . This is an alternative thermal process of food preservation which is highly effective(PATS) .The (PAT) is important in that it releases the diplicinic acid also known as the (DPA) from the individual endospores. It also rehydrates the core of the endospores and allows the process of the spore inactivation. A good combination can include 200 to 800 mpa which will also be at one hundred and twenty degrees, this combination can effectively eliminate any resistant spores of the organism Clostridium Botulinum. At

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The term, ‘Bureaucracy’ refers to an administrative body that administers institutions and system of a country. Members of this body are not elected like politicians but they have ample rights, duties, powers and responsibilities. Bureaucracy plays very significant role in making and administering of policies that run the government as well as the country. The whole system of any country or a society needs to be regulated in order to function smoothly and this is one of several responsibilities of bureaucracy. This paper intends to discuss bureaucracy and several other related aspects of the subject matter.
I run an

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