Essays on Aluminum

Specific purpose: With this speech, the audience will: a) have a better understanding of the role of aluminum in deodorants/antiperspirants, b) understand the connection of aluminum to health problems, and c) know if we should worry about the use of deodorants/antiperspirants.

Introduction:

- Attention Getting Device: Who here happens to use deodorants or antiperspirants? Did you know that most deodorants and antiperspirants contain aluminum (Chameides)? Well, it just so happens that there exists a connection between aluminum and some serious health problems, such as breast cancer, Alzheimer’s disease and kidney problems (Watson). But, should you worry? - Thesis: ...

When designing various projects for a client, an engineer is concerned with different aspects of the design. For instance, the aesthetic value of the design is very important to the engineer. Other factors that concern the engineer are the durability of the product and the cost effectiveness in both the design and production processes. However, and without belittling the importance of these factors, safety is ultimately the major concern of the engineer. Safety as a factor is incorporated into all designs, for both the client and the environment (including other people who might not necessarily use the product but ...

Introduction

At first glance one would think that Philippe Starck’s iconic juicer was a spider-inspired piece of artwork due to the three long legs that supports what seems to be a rocket ship-shaped body. Surprisingly, the designer actually thought of the similar inspiration. The juicer is now considered as an icon of contemporary industrial design; it even earned its place in New York’s Museum of Modern Art. However, the juicer itself according to Starck was intended to be a conversation piece rather than a juicer. In 1989, Alessi originally approached the Italian designer to design a stainless steel ...

1. Introduction

Computer hard disk drives are storage devices for digital data. The digital data is stored on high-speed rotating magnetic surfaces. They are non-volatile and use the random access technique to access data stored on them. It consists of fast rotating discs which have magnetic surfaces onto which data is stored. They are permanently mounted on the computers and cannot be easily detached like floppy disks. It is known as hard disk drive as both the disk and the drive are contained inside the same unit. The costs of hard disk drives have fallen in the last few ...

Introduction

Proper selection of the material and manufacturing process to be used for a given application is crucial to the success of the manufacturing process. Material selection should be based on material suitability and the possibility of modifying the material to make it suitable for the application while the selection of the manufacturing process should be based on the material selected, the shape required, dimensions of the item being manufactured and the cost of production. A product design specification (PDS) is a crucial element of design that outlines the design and operating requirements and, therefore, facilitates the selection of suitable ...

Objective

Purpose of this laboratory is to inspect the effect of precipitation hardening in Aluminum and steel alloys. Theory Hardness is a property of a material which delineates resistance to permanent or plastic deformation. For metals, hardness is generally defined as the resistance to indentation. One way to attain hardness is to look into the effect of precipitation hardening. This type of hardening helps to detain the yield strength in the material. There are four methods used to test hardness of a material: Rockwell, Brinell, Vickers, and Knoop. The Rockwell hardness test measures the depth of indentation, while the other ...

Introduction

Thin films are in use since ages, and in old times people used to beat gold with hammers into thin films about less than one μm thickness and then used this thin film for gold coating of different stuffs. Thin films are used in many materials and do use them in daily life but are not aware of it. If one wax cars or paint homes that mean, they are applying a thin film.

Bulk Material VS thin film

Bulk materials are those materials that are mined. They are referred to as Bulk solid in mining and mineral industry. The material that can be ...

Fun Facts about Recycling

If one aluminum can is recycled, the energy saved will be enough to run the television for three hours! The total energy saved through recycled cans each year is enough to provide electricity to the city of Washington DC for a long span of 3.7 years.

Americans dispose 25,000,000 plastic bottles each hour.

Recycling one-tenth of the newspaper by every American would save 25 million trees in a year. We recycle 30 percent of the waste, while 75 percent of it is recyclable. Americans produced enough trash in 2009 which could circle the world 24 times! 4 pounds of trash is generated by an average person ...

DEVELOPMENT OF SYNTHETIC RUBBER IN WW II AMERICA

Japan bombed Pearl Harbor in 1941 an event which compelled the United States of America to join the war. This saw the country lose 97% of its natural rubber supply imported from the Far East and faced a severe rubber shortage. The situation was exacerbated by high need of rubber for military applications. Soldiers needed rubber for boots, gas masks, tanks, life rafts, vehicles, bombers, ships among others. Rubber was essential for victory to be achieved in the war. The high demand for rubber coupled with dwindling reserves forced the government to put together a task team of engineers ...

Alloy steels are basically carbon steels to which other metal alloys have been added so as to improve properties significantly. Three alloying compounds which are used in steel include manganese, chromium and nickel. The percentage of manganese present in steels ranges between 0.3% and 1.5%. It reduces effects of impurities gathered during the production process. It also works as a hardening agent, improves toughness and strength, non-magnetic properties and causes self-hardening to prevent abrasion. Chromium ranges between 0.3% and 4%. Its purpose is to improve wear, scaling resistance and oxidation. It also improves hardness and reduces ductility. Nickel ranges ...

Introduction

There has been a rise in the concern relating to how human activities are affecting the environment. Over the last number of years, issues relating to environmental destruction and pollution are a concern of almost every nation in the world. The increasing use and exploitation of natural resources are resulting in the development of unwanted consequences such as increasing waste, which is affecting the lives of many individuals. As such recycling is aimed at reducing the amount of waste products that is discharged into the environment. According to Hill (2003), recycling is the process of changing waste products into ...

Halogen Bulbs - Cellulose Insulation - Aluminum Ladders - Bamboo Fly Rods

Decision making is an important element that associated with an organization for their betterment and long run efficacy. There are basically two broad types of organizations are there known as manufacturing organizations and service oriented organizations, and both of the types of companies are delivering something extra and something new for their end users. In this part of the assignment, it is required to analyze the production system for the Halogen Bulbs, Aluminum Ladders, Cellulose Insulation and Bamboo Fly Roads. Apart from that, it is also required to analyze the most effective cost method that would be effective for ...

Introduction

Coordination complex usually consists of a metallic coordination center and can be surrounded by bound molecules. Thus these are known these coordination complexes are known as ligands as they bind several molecules strongly almost irreversibly. Coordination complexes therefore coordinate covalent bonds on the molecule. There is specific nomenclature for coordination complexes. Particularly, the donor atom is the ligand that is bonded to the central atom. Here we are making Aluminium acetylacetonate, Al(acac)3, also referred to as Al(acac)3, and the metal ion is the aluminum and the donor atoms are the acetylacetonate. If there are more ...

Introduction

Silver Ship Company designs and constructs marine equipment for different companies in the marine industry. The company also repairs marine equipment including boats for other companies in the industry. This paper focuses on the company`s strategy within the workboat and military boat industry. The paper highlights a brief history of the company, the executive summary, and recommendations in the long and short terms for the company.

Brief History

In 1985, Mike McCarthy started the Silver Ships Inc after he ended his career in the fishing industry. The fishing industry offered him a chance not only to develop a successful career ...

- Stress in the Thin Cylinder Subjected to Internal Pressure - Discussion on Lab Results I would like to start with the proverb “Err is Human”. All the scientific experiments conducted in the research lab are always subjected to the errors. Most of the errors are due to the human mistakes while taking the reading, and it was called as the parallax errors. This report may contain the certain types of errors. Now, we can analysis about Table 1 and Table 2. The table 1 speaks about pressure (N/MM 2) and gauge (ε). If a pressure increases the strain also increases. ...

Abstract

The purpose of this experiment was to determine the specific heat capacity of unknown substance and use the quantity to identify the substance. The specific heat capacities of the metals were determined to be 0.890 Jg-1K-1 and 0.361 Jg-1K-1. The metals were identified as aluminum and copper respectively. The percentage uncertainty in the determination of specific heat capacities of aluminum and copper were found to be 0.78% and 6.23% respectively. These errors were attributed to loss of heat in the atmosphere.

Introduction and Theory

The amount of heat absorbed or released by a substance is proportional to its mass and temperature differences ( ...

Introduction:

The main purpose of the experiment was to carry out a tensile test on A36 steel and 6064-T6 aluminum. The experiment aimed at determining yield strength, rupture strength, ultimate tensile strength, the modulus of elasticity, the ductility of the materials under test. In real life engineering applications the tensile test is one of the most important and useful test that can be utilized to determine the mechanical properties of a material. Different materials have different mechanical properties and hence have different engineering uses. In engineering, it is imperative to determine the mechanical properties of a material as it helps ...

Facilitator:

Scientific techniques refer to procedures that are informed by technical or logical postulates in developing practical mechanisms or systems. Scientific principles refer to methods based on empirical and measurable facts for measuring and investigating a particular phenomenon. Scientific principles and techniques therefore are strategies and techniques used to investigate a phenomenon, validate facts, or reject a thesis based on empirical and measurable facts (Jarrett 2009, p. 219). In engineering, scientific methods determine the quality and level of material used for the final assembly stage.

Scientific principles and techniques are essential in promoting research in different areas of engineering. Engineers ...

Introduction

Alum is a double salt that is obtained from aluminum. It is used in pickling process and the dying of various fabrics by recycling aluminum useful products can be obtained from previous material generally regarded as refuse.

Materials

Aluminum foil, aqueous solution of KOH Procedure Dissolve aluminum foil in hot aqueous solution of KOH. The solution will acidify until a precipitate will be recovered (alum) Re-crystallize the precipitate to eliminate impunities. Results Group 1 - Na + O2→Na2O2 - Na2O2 +2H2O→H2O2+2NaOH - Cesium would be more reactive than sodium.

Group 2

- 2Mg + O2→2MgO - Magnesium oxide + water →Mg( ...

Conceptual Design

The trailer should not demand excessive propelling power due to the limited amount of power available. Consequently, it should be extremely light, which means that it should be made from light materials of high strength so that it will be comprised of as few components as possible. Nevertheless, it should provide the required mechanical strength to carry enough goods equal to the carrying capacity of a human being. The design should also consider the quality and aesthetic aspects of the trailer. ...

Introduction

Wind energy has been in use as far back as 3000 B.C., when sailors in Egypt utilized this energy to move their boats. Today, wind energy is hailed as an important source of energy and is tapped in various regions around the world. Its importance stems from two factors: (1) it is renewable and (2) it is a clean source of energy that does not generate environmentally harmful emissions. To harness wind energy, a wind turbine is used. A turbine converts the kinetic energy of the wind into ...

Calculations and Analysis

Analysis questions from lab: Part 1 Which side of the pan balance is lifted as you poured in the water? Was the solid cylinder forced up by the buoyant force of the water?

The left side; yes, slightly.

What happened to the left pan as you added water to the hollow cylinder? What can you say about the volume of the water you added to the hollow cylinder and the volume of the water (in the beaker) displaced by the solid cylinder? According to Archimedes' principle, should these volumes be the same? As water was added to the hollow cylinder, the left side of ...

Please type your name here

Please type your instructor name here Introduction Alcoa Inc., whose ticker symbol is Alcoa, was incorporated in September 1888. Alcoa is essentially into frivolous metals, merchandises and solutions. Alcoa extensively offers both its technology as well as expertise in the field of automotive and aerospace transportation, construction, home appliances and packaging, defence applications across all three modes of transport, and finally to the oil and gas industry. Alcoa also produces primary aluminium in the form of a miner of bauxite as well as refiner of alumina. Alumina, Primary Metals, Global Rolled Products and Engineered Products and Solutions are the ...

Problem statement

The knowledge on how materials behave or fail when subjected to different conditions is of critical importance in the engineering field. This knowledge will ensure that there is appropriate selection of material for diverse working conditions. Thus, it is paramount to establish the features that are associated with unique classification of material. In this experiment, the behaviors of A36 steel and the aluminum when subjected to impact loading are investigated. To compare these two materials, the amount of energy required to break a respective piece are compared.

Procedure

Equipment: Tinius Olsen machine, Pair of thongs Material: A36 steel and the ...

Literature Review on Carbon Fibers

This paper sums up a literature review on a unique and astounding development in the field of Science, known as carbon fibers. Although, they were discovered during late 1800s for the first time, their true potential was not realized until mid 20th century, and even today, researchers are experimenting over new areas of application for carbon fibers. The paper will further discuss; different areas of application, the composition, structure and characteristics of the carbon fibers used, along with a list of merits and demerits of using carbon fiber in place of a traditional alternative in modern engineering.

Carbon fibers ...

Abstract

Motorsports or motorsport which involves motorized vehicles is considered fun on wheels. However, the sport is more than meets the eye. Motorsport and hill climbing are the riskiest pursuits, and require the highest degree of courage and conviction to pursue this sport. This paper defined and described motorsports, and dwelled at length on the developmental history of motorsports, particularly auto racing or car racing. Starting from the manufacture of the first gasoline-fueled automobiles, and first organized contest on 28th April 1887, every stage of development such as the period up to 1950, and thereafter till date has been included. ...

The Research .3

Cooking Pans: The Basic Requirements ...3 Composite Materials ..4

Nonstick Pans 4

Prioritizing High Heat Capability ..4

Conclusions 5

Introduction This research paper discusses the respective properties and qualities of cooking pans made from copper, iron, stainless steel, aluminum and composite materials, including those with non-stick (usually Teflon) interior surface coatings, to find what is the safest and best material to use for cooking food on a high heat setting, and to assess any dangers inherent in the materials discussed.

The Research

Cooking Pans: The Basic Requirements. According to Chu (2005), the purpose of the cooking pan is to efficiently impart the heat energy from the ...

Physics practical report: determining the range of a radiation and the energy content

Introduction Most of the radiations emitted by sources usually emanate from radioactive isotopes. These isotopes may be naturally radioactive or the emission may be induced by an external source of energy. Natural isotopes are mainly elements whose atomic mass exceeds 208. For this reason, the atomic size is very large creating an aspect of imbalance in charge within the atom. The highly positively charged nucleus does not feel the same magnitude of negative charge effect from the electron cloud surrounding the nucleus. This makes the nucleus to disintegrate naturally to release some energy as it scales down the number ...

On the 27th September 2013, it was reported in the news that mining company BHP Billiton Limited had put on hold its expected project of expansion of the Olympic Dam owing to a challenge of resources. This brought to the fore the issue of competitive challenges in the company which is regarded as one of the biggest mining company in Australia and indeed, in the whole world. As a consequence, this paper seeks to analyze the company BHP Billiton Limited, also listed in the Australian Securities Exchange, with a view to exposing the competitive challenges that the company faces ...

How Apple Inc. adds Value to its Customers

Apple Company manufactures a variety of mobile phone tools in the United States. Mobile phones are devices that consumers use to communicate with friends and family from all parts of the world. The use of mobile phones for communication makes the product universal because communication takes place across the globe. The organization manufactures a product known as iPhone that has numerous uses other than communication. The firm created the product secretly during the purple project; Steve the director of the institution, selected ten thousand employees to work on this project as he guided them through various stages (Miser, 2013). ...

Abstract

Gone are the days when a Smartphone was considered a thing for the elite. Today, the ownership of a Smartphone is almost becoming a norm, with everybody bracing the craze for the Smartphone. Apparently, the Apple Inc. products are sparking a serious showdown with what Samsung is innovating. The two giants in the industry are battling it out in an endeavor to come up with groundbreaking technology in the world of telecommunications. When Samsung Galaxy SIII hit the market, the potential consumers watched with awe as the organization launched what they considered indisputable quality. It would take long before ...

The reusing of materials in their original or changed forms, commonly known as recycling, has been promoted by environmentalists as the solution to our environmental problems for several years now. Yet, the process has not been adopted on a large enough scale so as to have a sizeable impact. Recycling has been known to reduce energy consumption, save on investments and space utilized in the creation of landfills, reduces air, water and land pollution, generates jobs, and helps to conserve natural wildlife habitats. In order to be able to save the environment and prevent it from degrading further, recycling ...

Background information

TV is viewed as an important component in most households. Watching television is one of the most affordable forms of entertainment. People get updated on the current affairs in their country and around the globe through televisions. Advertisements, marketing and other types of advertisement are seen between commercial breaks; hence TV is very valuable in marketing. There is an increased craze of individuals over TV and having the best signal quality is also a must for many of them (David, 2004). Therefore having an antenna connection in your house is a must. In order to have best TV receptions ...

Alzheimer’s disease

Alzheimer’s disease is the most common type of dementia. Dementia is a term used to describe a variety of conditions and diseases that occur when the nerve cells in the brain degenerate or function abnormally. The degeneration of neurons results into changes in memory, behavior and cognitive functions. Alzheimer’s disease causes changes that eventually impair the ability of an individual to carry out bodily functions like walking and swallowing. The disease may ultimately lead to death. Early symptoms of the disease include gradual drop in the ability to recall new information. This is due to the disruptions ...

Rio Tinto Alcan is an Aluminium producing company based in Canada. However, its scope as a company and hence operation grounds are not limited to Canada. The company has eliminated all geographical barriers expanding its wings to becoming an international company. Alcan has operations in many countries across the globe and recruits thousands of workers worldwide in a diverse range of operations. The company is renowned as the top aluminum manufacturer across the globe in terms of annual revenue and volume (Surhone, Timpledon, & Marseken, 2010). According to research, the company operates in more than 40 countries thus enabling it ...

Environmental Protection

Environmental protection is a habit that one can develop in order to save the atmosphere. As defined in the Business Dictionary, “Environmental protection are the policies and procedures aimed at conserving the natural resources, preserving the current state of natural environment and, where possible, reversing its degradation.” Our environment since the past years has been facing drastic changes resulting in improvements and destructions of the natural resources. For all the natural resources to last longer we need to work towards environmental protection and help in saving the world for future. As a matter of fact, we humans are using ...

Abstract

The experiment is aimed at constructing a step-up transformer. This is due to the type of materials being used and the number of rolls that the wire is rolled on the U-shaped material. This can easily be related to the alternating current that is tapped from one source to the other. This current can easily be measured in respect to the size of the voltage that is alternated in between the primary transformer and that of the secondary transformer. The number of coils in the primary material is two; the other secondary coil has four coils. The material used ...

Experiment 5: Vectors and Static Equilibrium of Forces

INTRODUCTION: In physics, the subject of statics deals with the description of conditions of force system that is necessary to maintain the state of equilibrium of engineering structure. When a body is in equilibrium, the resultant of all forces acting on it is zero. Main condition for static equilibrium is that the vector sum of all the forces acting on a body must be zero. In this report equilibrium was discussed by carrying out an experiment. For an analysis of a vector quantity like force vector operations like vector addition and subtraction are required and in this experiment this ...

Cover letter

[insert your details] [insert your details] [insert the recepient’s details] [insert the recepient’s details]

February 2nd 2014

I am pleased to submit my manuscript entitled “Hepatitis B immunization in newborns.” Myname is [Fill in your name ]. I am submitting this manuscript for review This paper is on the safety of vaccines used in Hepatitis B imunization. Several vaccines have been found to contain substances that once in the system of the infants may cause diseases such as lymphoblastic leukemia. This paper focuses on critiquing a journal article by Francois et al (2005): Vaccine Safety Controversies and the Future of ...

According to the Council on Tall Building and Urban Habitat, The Burj Khalifa is the world’s tallest building based on height to top, height to highest occupied floor, and height to architectural top. The building is a multi-use Burj Dubai development tower with an approximate total area of 460,000 meters squared. It includes parking facilities, shopping malls, entertainment centers, offices, hotel, and residential (AL-KODMANY 2013, p. 12). The decision to construct this building was initiated by government’s idea to diversify from an oil-based economy to one that is tourism and service oriented. It is 828 meters ...

Illustrative Essay: Americans are not a Wasteful People

Abstract Keywords: Illustrative Essay: Americans are not a Wasteful People

Introduction

The United States of America is one amongst the world’s leading developed countries. The States are highly industrialized and its citizens enjoy benefits of innovation, technology, health care and high standards of living. However, being a high income and high industry country the USA produces a large amount of waste as well. Reports are published about the high waste generation per person per year, and USA ranks the top most in these statistics. However, such statistics do not paint the complete picture of the waste production and management ...

Electronic devices may be deemed the crowning achievement of decades-long scientific efforts in their own right, signifying the human quest for ultimate comfort. People are so used to utilizing electronic devices in their everyday activities that they seem to have become inseparable from their life. Of course, there is no denying they do a lot to facilitate human lives by connecting people, updating on the latest news, revealing weather broadcast, allowing watching movies, to name only a number of benefits. While used by many, electronic gadgets do not necessarily mean they pose no threat to human health. One should ...

Business Case for Branching into Additive Manufacturing

Introduction Our company is a global conglomerate involved in manufacturing automobile and aircraft parts. Our products are of extremely high quality, and are used by major automobile and aircraft companies of the world. Components produced by our company are used by automobile and aircraft manufacturers when producing new cars and aircraft, and also as spare parts for maintenance. The aim of this brief would be to convince the Board of Directors of our company to open a production line using additive manufacturing so that the company remains abreast of technology and responsive to rapid changes in customer preferences.

Additive Manufacturing: Process in Brief

Additive ...

ABSTRACT

In the vibrating beam experiment, an aluminum cantilever beam was made to vibrate. An accelerometer transducer was used to convert the mechanical vibrations into a signal that was fed into an oscilloscope via a power supply. The oscilloscope mapped the signal into a sine curve and displayed it on the screen. The oscillations’ decay curve was studied and the beam’s damping ratio was determined. The decay curve’s logarithmic decrement was used to determine the beam’s damping ratio and its natural frequency. The beam’s damping ratio was observed to be underdamped at a damping ratio of ...

Introduction

The term LASER is an abbreviation for “Light Amplification by Stimulated Emission of Radiation”. These are special devices that produce light that can be directed towards an object, and is monochromatic and coherent. These special characteristics are used in designing a laser device that is widely used for industrial purpose as well as in medicine . In the US, about 500,000 to 700,000 health care workers are involved in the use of medical lasers .

History and Progress of Lasers

The history of lasers dates back to 1916, when Albert Einstein discussed the possibility of stimulating radiant energy based on Niels Bohr’s theory ...

Aluminium is produced from bauxite. Al2O3. This is referred to as Alumina, or aluminium oxide is extracted from the ore. After the extraction, electrolytic reduction process is used to transform Alumina to Aluminium. From every two tonnes of alumina, one tonne of aluminium is produced. The bauxite consists of ferrous oxide, titanium oxide, earth silicon, and alumina, approximately 40 to 60%. Bayer process is used to separate pure aluminium from bauxite (Habashi 16). This process involves heating the ore in an autoclave that contains caustic soda. Cooling then takes place, in order to separate the solid residue that is ...

Alcoa has been reporting an increase in its profits for the past three years like in the year 2010 the revenue announced was $210 billion a 14% increase from the year 2009. This steady increase has continued to be announced up to the year 2012. The company credits this increase to an increased demand for aluminum in worldwide, an increase demand for their products and also an increase in the value of their products. Alcoa has mainly financed its growth through the sale of its assets though at prices below market. This many analysts believe is the main reason ...

Introduction

This lab experiments was to see how light travels through the pin hole camera to form images. This was achieved through a number of steps. The basic functional principle of a pin-hole camera is that, when a shutter is opened-in this case a small pin hole, light that bounces off objects and is directed through the hole, an image is formed on a screen that is on the other side of the hole. However, this image appears to be inverted. Since the pin hole is very small, the light rays that pass through it will not overlap. This is ...

INTRODUCTION

Rio Tinto is a combination of predecessor companies formed by investors in 1873 and 1905. Due to such an extensive knowledge and experience in the mining industry, the organization is regarded as one of the finest and leading global mining and metal company. Being a global mining and metal company, the organization focuses highly on the exploration and processing of Earth’s finest mineral resources with an aim to maximize the shareholder’s value. In order to do so, the organization has the right people for the job and resources to provide the world with minerals and metals. Some ...

Innovation refers to the development of new ways to do things thus creating new requirements and standards. It defers from invention because invention refers to the creation of a new idea. Innovation does not involve coming up with a new idea, but it involves developing a new way to perform a task. The new way to do the task should be better than the old way. Innovation differs from improvement in that improvement is performing the task in the same way better, but innovation requires accomplishing the same task in a better more efficient new way. This report is ...

Recycling is the process of reusing materials for another purpose. This can be the repurposing of materials, the production of new materials from old materials, or taking the waste products from an industry and using them for another purpose. This paper will explore the practice of recycling.

History

Evidence of recycling goes back to the time of Plato (400 BC). Archeological digs reveal the reuse of materials such as pottery, ash, and broken tools. In re-industrial times, the recycling of scrap metal and even the recycling of wool was prevalent. Ash from wood and coal fires was used in brickmaking. ...

Alcan Inc. is a market leader in production of fabricated aluminum, primary aluminum, and specialty packaging. The company operates globally with over 50,000 workers with annual revenues of approximately $23 billion (Dube, Bernier & Roy, 2009). As a market leader, Alcan has contributed to the design of fuel-efficient technologies in engineering sophisticated and novel concepts in aluminum production. The company’s Information Technology (IT) department is considered the motivation towards efficiency and innovation, through the setting of new principles for information sharing, exchange, and delivery (Dube et al., 2009). The following paper aims at describing and assessing Alcan Inc., in relation to its IT infrastructure. The topics discussed include: description of the current IT operating technology, technology deployment, effectiveness, and contribution to the company and customers; It tactics and strategies; technology barriers; and applications and systems for business continuity. ...

Every commercial aircraft is fundamentally designed for safety, passenger acceptance, fuel efficiency and airport compatibility among other important features. Numerous challenges face all current passenger aircrafts, for instance the conventional wing consists of a number of moving parts which increase the weight of the plane and are difficult to adjust and maintain. The current control surfaces also increase turbulence and drag since the smooth flow of air is disrupted, and the aircraft cannot adapt to different flight stages and conditions. Design architectures such as the vertical ...

In the city dump of even middle-sized city or town it is annually accumulated hundreds of thousands of tons of household waste. Decaying, they poison the air, soil, groundwater, and thus become a serious threat to the environment and humans. That is why the one who saves the day become effective, non-waste, and most importantly clean technology industrial waste processing systems. Throughout the world, processing and recycling of household waste are becoming increasingly important issue. This mainly concerns densely populated major cities, where the annual accumulated millions of cubic meters of all kinds of garbage. Steaming dump heap of ...

ConvinienceSmooth aluminum surface of the laptop is incredibly pleasant to touch. It is not easily soiled and easily cleaned with a simple cloth. Ergonomic keyboard is equipped with a backlight, which can automatically adjust brightness depending on room lighting. This feature provides a better autonomy. The touchpad with a glass surface supports multi-touch and gestures. It is easy to get used to, so after a day of use, you completely forget what a computer mouse and why it is needed. PerformanceA decent dual-core i5-5250U able to accelerate, at short intervals, up to 2.7 GHz, and the default frequency of ...

Acid rains have been in the mid of attentions since the Rio Earth Summit. This is an example where anthropogenic impact combines with the nature forces. “Acid rain” is a broad term referring to a mixture of wet and dry deposition (deposited material) from the atmosphere containing higher than normal amounts of nitric and sulfuric acids” (What is Acid Rain?). Originating from the large number of causes acid rain “is created when sulfur dioxide and nitrogen oxides are discharged from industrial plants that burn fossil fuels like coal, oil, and natural gas. These compounds react with water, oxygen, and ...

Anderson Air Force Base – Guam is a military port based in the United States of America located approximately 4 miles northeast of Yigo. Along with the Naval Base of Guam, they were placed under the Joint Region Marianas on the late 2009 that was in October. Anderson Air Force Base was established in 1944 as North Field and was a posthumous recognition in the name of the late of Brigadier General James Roy Andersen (Mulligan and Gibbs 2005). This base was built to serve as a bomber forward operating locations of the United States Air Force, which provides back-up ...

Literature review

Heat transfer and friction characteristics in a square duct roughened by various shaped ribs on one wall [Aliaga, b, 1994]. Liquid crystal thermograph is used to measure local and average heat transfer coefficient of ribbed surface. The ribs height to duct hydraulic diameter ratio is fixed to 0.1. The rib pitch to height ratio varies from 8 to 15 and Reynolds number spans from 8000 to 20,000[Aliaga, b, 1994]. The experiment consists of heat transfer test and pressure test. The test experiment consists of 750mm long smooth duct followed by a rib-roughened section of equal length. Plexiglas ...

Essay 1

1) The concerns made by the author of this article have to do with the environmental impact of creating artificial snow and maintaining snow solid without melting. Maintaining the snow for indoor or outdoor skiing games requires a lot of energy. For example, Dubai, despite being located in a region with a desert-like environment, maintains a 22,500 square meters snow-covered area for sports. It is estimate that about 1000MWh of energy are used annually to maintain the building at a temperature below the freezing point. The fact that the electricity is generated from natural gas means greenhouse gases ...

(Name of the class) (City, State)

Introduction

TLC or Thin-layer chromatography refers to a technique that is applied in the separation of mixtures that are not volatile (Reich & Schibli, 2007). The process is done on a sheet of plastic, glass, or aluminum foil that has been coated using a thin layer of material that is adsorbent such as aluminum oxide, silica gel and cellulose (Sherma & Fried, 2003; University of Colorado, 2014). This adsorbent layer is referred to as the stationary phase. The sample is usually applied using a capillary tube on the plate, and the sample is taken up the ...