Surface Research Papers Samples For Students

XX century was characterized with the significant technological progress, which has improved the life of people. Numerous products and services became available, labor and domestic life became easier and more comfortable. However, waste problem is the other side of the technological progress. The solid, liquid and gas waste are formed, and thus land, natural water and air quality degrade. Therefore, in XXI century the research efforts are dedicated to development of methods for sustainable use of water, gas, and solid resources.
Wastewater polluted with dye residuals originate from textile, leather and food industry. These industries produce goods that are ...

Abstract

The study of tiny particles and their applications have emerged as an important area of research in recent years. In particular, magnetic nanoparticles have attracted considerable attention due to their unique properties that make the particles useful in numerous applications. Accordingly, the present review investigates the synthesis, characterization, and biomedical applications of magnetic nanoparticles. The introduction section examines recent advances in nanotechnology and explains the significance of magnetic nanoparticles in scientific research. The section on results and discussion presents the findings of various researchers with a focus on the magnetic properties, synthesis, characterization, and biomedical applications of magnetic nanoparticles. ...

Introduction

In 1975, two planetary exploration missions named Vikings 1 and 2 were launched to study the surface and atmosphere of Mars. These two missions were launched with only a few weeks apart from each other; the first on August 20, 1975 while the second on September 9 of the same year. Both of the missions had two parts: a lander and an orbiter. The plan of the missions was that as the orbiter orbits around Mars taking pictures and other data, the lander studies the Martian surface from the ground. With the program’s total budget of a staggering 1 billion dollars, ...

Fig 1: NDRC Techniques

Introduction

Non-Disruptive Road Crossings are manuals which outline unifying and standardizing measures of Road Engineering Practices. The significant objective of the project is to enhance the management, planning, design, construction, maintenance, and operation of all roads and related infrastructures to ensure a safe and uniform operational and structural capacity throughout the road network in Dubai. The complexity in road construction and to some point other engineering projects leaves very little to be argued about on their significance with respect to the influence they have on the environment. It is a fact that projects like roads, bridges, and dams ...

Peace that people enjoy nowadays uninterrupted is, of course, not a new phenomenon. However, what is interesting is that the humanity has lived only several hundred years without warring for whatever reason could bring large armies face-to-face in a lethal confrontation for questionable reasons. Besides soldiers, the brute force of conflicts, the main tools of war have always been weapons indicating the state of technological advancement of nations, being the litmus paper and the benchmarks of progress. Thousands years ago, there was no such concept as a long-lasting peace, and the weaponry was a lot more different than it currently is, being used ...

Introduction

The photoelectric effect can be defined as an ejection or emission of electrons a metallic surface as a response to a light incident. Energy within an incident light is taken in by electrons inside the metallic surface. This provides the electrons with the necessary to be emitted from the metal’s surface. There have been many discoveries by many scientists such as Einstein and Maxwell who have identified different experiments of justifying the photoelectric effect. This experiment is the simplest and most convincing and direct proof of the photons existence as well as electromagnetic radiation and light’s ‘corpuscular’ nature. Therefore, this ...

Abstract

Figure skaters graciously glide over ice and perform intricate aerobatics, speed skaters achieve incredible velocities over ice, and thousands of persons each year stumble in ice as they first try out this practice for leisure. This paper reviews the scientific concepts and laws that make ice skating possible, as well as the factors that influence performance and ice skates design.

Introduction

Ice skating, gliding along an ice surface using keel-like runners known as ice skates [1], is a sport practiced by many solely for recreational purposes, while others engage in it as an inherent part of other sports, such as ...

Water Supplies in Sun Valley, AZ

Sun Valley is located in Arizona. It is situated along interstate 40. It is 31.56 square miles. Sun Valley has different water supply options. Some of these options are groundwater, surface water and reclaimed water. Groundwater is water found beneath the ground. They are usually in rocks and pores of the soil. Sun Valley is supplied by Arizona’s water supply. Groundwaters that supply Sun Valley are aquifers and wells. Main aquifers in Arizona are stream alluvial and basins fill. Ground water can also be sourced from sedimentary rock. Basin Fills are of three type’s namely carefree formation, ...

Improving the Efficiency of Airport Surface Operations

Improving the Efficiency of Airport Surface Operations
Air travel has seen an increase in the number of people using it as the preferred means of movement across countries or continents. Over the years, there have been many changes in technical and tactical issues affecting the airports. The ability of an airport to adapt to the changing demands in the airline industry either renders it as a modern and suitable airport or an airport that is not a favorite of many people. Many factors can be used to consider the severity of an airport in terms of adapting to these changes. ...

Introduction3

Statistics.3
Offshore oil drilling4
Effects on the environment.7
Recommended solutions10
Conclusion.13

Works Cited14

Abstract
Today, the United States has over 5600 offshore gas and oil platforms; there are also over 27,000 miles of pipeline in the Gulf of Mexico area alone. This shows the extent to which offshore oil drilling occurs in the United States. In other developed parts of the world, the situation is the same. Oil is a product on high demand; this facilitates efforts in extracting it form its deposits deep in the sea floor. The retrieval requires the use of sophisticated equipment ...

Sinkholes; Made by nature or humans?

Abstract
Sinkholes seem to swallow the earth and everything sitting on the surface. Some sinkholes are small and have relatively no effect on humans or property. Some sinkholes are very large and will leave ga[ing holes in the landscape. Sometimes these large sinkholes will devour a road and cause harm to the humans who live, work, and travel where the sinkhole is located. For example, a series of sinkholes and a landslide occurred simultaneously in Harbor, Oregon. This sinkhole was a combination of nature and human activity. Many sinkholes are caused by human activity that nature decides to ...

Abstract

The main aim of this study is to conduct a research about the artificial methods of storing water in California while considering all the financial characteristics. This research will include two artificial (Manmade) methods of storing water in the state of California which will include; surface water such as Cisterns, Dams and aqueduct. Underground water will include pipelines, aquifers, canals and reservoirs.

Introduction

California’s water management system is arguably among the most innovative and complex artificial methods of storing water in the world. In California, colossal amounts of water are confined, stored, and then delivered through manmade features to serve ...

(Teacher)

Sinkholes are a problem across the globe, especially in urban areas. Sinkholes can cause damage to roads, collapse structures, and destroy property. The biggest way to prevent a sink hole is to learn what factors are included in the formation a sinkhole is, how a sinkhole forms, and wheatther or not the sinkhole was naturally formed or if humans created the situation that caused the sinkhole in the first place. While it is not possible to actually prevent natural sinkholes, there are several ways that sinkholes which are created from human activity may be prevented, or at least ...

Immunogenic cell death: the role of SAGE

Immunogenic cell death: the role of SAGE

Introduction

Millions of cells are always being removed in the human body not only to regulate and coordinate the body’s biochemical pathways but also to keep the cells healthy. This particular systematic removal of cells occurs through a selective mechanism called cell death or apoptosis process. Apoptosis is not a new concept in the understanding of the biological workings of the body. This homeostatic death of body cells has been defined as a tolerogenic or a non-immunogenic event for many [1]. However, new discoveries have unearthed the existence of a different concept ...

Immunogenic Cell Death: The Role of RAGE

Introduction
Millions of cells are always being removed in the human bodyin order to regulate biological pathways and keep cells healthy through a particular mechanism called cell death or apoptosis. Through apoptosis, such homeostatic death of cells has been defined as a tolerogenic or a non-immunogenic event for many years [1]. However, during the past few years, scientists have discovered the occurrence of a different concept of cell death – immunogenic cell death (ICD), where the death of a cell stimulates a response from the immune system against antigens of a dead cell, and this mechanism of cell death may ...

A Review Paper on Tribological and Mechanical Properties of Ternary Nitride based Coatings

Chauhan, K. V., & Rawal, S. K. (2014). A Review Paper on Tribological and Mechanical Properties of Ternary Nitride based Coatings. Procedia Technology, 14, 430-437. doi:10.1016/j.protcy.2014.08.055
http://www.sciencedirect.com/science/article/pii/S2212017314000917
The paper reviews the nanotribological researches that are required to create basic understanding of the interracial phenomena on the lesser scale in the nanostructured polymers employed in the storage if magnetic systems and for other commercial applications. In many fields of the electromagnetic and coating applications such as the use in the automobile and the aircraft sectors, the wear and the friction of the moving parts is a critical aspect to be put ...

INTRODUCTION TO GEOGRAPHIC INFORMATION SYSTEMS

Q1.

GIS has been given several meanings over the years in various disciplines and areas of study. Interestingly, all these definitions of GIS attest to the uniqueness of spatial data since geographic locale is an essential peculiarity of strategies, plans, policies, and activities. Below is a sum up definition: GIS can be defined as a computer-based methodology and technology used to collect, analyze, model, manage, and present geographical information or data for a vast dimension of applications (Tyler pg. 210)

Components of GIS

People- Individuals are by far the most fundamental part of a GIS. The procedures and task definitions that are ...

If someone has made an invention to make life easier or to alleviate one’s living condition then the security of the patent for that invention is needed. According to the World Intellectual Property Organization, a patent is an exclusive right of a person for producing something that offers a new solution to a problem. Furthermore, a patent provides the maker with protection for their invention, and this protection usually lasts for 20 years. One privilege of a person who has a patented invention is that the invention cannot be sold, distributed, used or commercially made without the inventor’s consent. This right is usually enforced ...

1. ABSRACT

The purpose of this experiment was two-fold. Firstly it was to synthesize shape-controllable Copper Oxide (Cu2O) under alkaline conditions by using hydrothermal methodology. Secondly it was to measure and evaluate its application for photocatalytic degradation of direct blue dye 53 also commonly known as Direct Blue 53 or Evans Blue. Materials used for the first step were Cu2O and the two reactants, CuCl2.2H2O and NaOH. The temperature during the hydrothermal process was raised from 80°C to 140°C. Two products were synthesized: a) the Cu2O nanorod and b) a mixture of Cu2O nanorod and Cu2O nanocubes.

Hydrothermal temperature was found to ...

The paper is dedicated to the study of ecological balance and possible reasons that could lead to the consequent change of the world climate. In particular, two groups of hypotheses are analyzed. The first group deals with reasons that are conditioned by the changes in the energy received by the Earth from the Sun. The possible changes in the Sun itself and in the dust clouds that can affect the way the energy is taken by the planet are considered. The second group of hypotheses is dedicated to the changes in CO2 level and possible consequences it can lead ...

Other Details

Abstract
There has been an increasing concern among the scientific and geographical communities that the changes currently occurring in the climate are induced by humans. Scientists are also concerned about the ability of humans and other species to adapt to these changes. Indeed, there is an on-going debate about whether humans and other species should adapt to the change or mitigate it. With rapidly rising temperatures around the globe, the chances of sustainability are decreasing. Climate changes as a result of natural forces such as the earth’s rotation around the sun, and changes in the intensity of radiation ...

Abstract

Different physical and ecological events along the Gulf of Mexico allows the toxic phytoplankton – red algae to become dominant. The phosphorus-rich nutrient supply encourages phytoplankton succession. The objective of the paper is to study the background of red algae, and why the downstream red tides have only increased over the last couple of decades. The toxic red tides are seen in similar coastal habitats of the western boundary currents China, New Zealand, Japan, and South Africa.

Introduction

The Gulf of Mexico is looked at as a marginal sea as it is linked to the major oceans and the procedures that occur ...

This study revealed that Kevlar and Kevlar/wool fabric thermal properties. The effect of fabric physical properties on thermal comfort was analyzed. The tests conducted on moisture management techniques were: sweating guarded hot plate (SGHP), moisture management tester, and surface tester. A conclusion for the paper is given which recommends the use of Kevlar and Kevlar/wool in the textile industry. The report examines the different thermal properties of Kevlar A363 and Kevlar/wool in an effort to determine which fabric is best suited for different weather conditions. In addition, the tests carried out shows clearly the difference in thermal properties of ...

Disturbing trends in the climatic condition of the Arctic led to scientists researching this area. Upon close scrutiny the fascinating greening of the Arctic has been observed. From the space, using Normalized Difference Vegetation Index (NDVI), which is an index of vegetation greenness, the circumpolar changes in the tundra vegetation are observed. The NDVI records of the last 29 years were gathered and the Maximum NDVI was derived. According to studies the MaxNDVI was usually observed in August due to many factors such as CO2 fluxes, above-ground biomass, total eco-system production etc. Many other biophysical properties also cause the ...

Abstract

Global warming remains by far the biggest challenge humans have faced in this century. It affects the entire planet although not the entire plane is to be blamed for it. The emission of greenhouse gases and particularly carbon dioxide has been at all-time peak in this century especially the last half of the century. Studies show that the current concentration of carbon dioxide in the atmosphere is about 385 ppm, up from 285 ppm prior to industrialization. This has sparked an unstoppable change in the climate patterns in the world. The changes are mostly with regard to the precipitation ...

Introduction

Building simulation methods should focus on the effect that occurs between convective heat repulsion between external air circulation and the given wall surfaces. This study will take a closer look on the effects of heat transfer on a brick surface. A tetrahedral mesh will be used to scertain for the effects that are caused on the walls. A brick wall is known for its thermal characteristic of absorbing heat. Therefore, this thermal property will also be studied in this study. Most authors have attributed this norm to behavior of the different correlations that are used to estimate the exact value of ...

Global scenario and California

Global scenario and California
Water is a precious nonrenewable resource. It is limited in quantity and serves the entire humanity, and all living beings on earth. A man can survive without water for only three days. Many problems on earth are attributed to increasing population and water scarcity is one of them. The exponential growth of the human population not only endangers other living things on earth but also deprives them of essential requirements like clean water, clean air, and a safe habitat to live. Water as a resource is under threat because it is contaminated, misused, wasted, and lost in ...

Sun plays crucial role in the life of the Earth. The entire organic world of our planet is obliged to the Sun for its existence. It is not only the source of light and heat, but also the original source of many other types of energy (oil, coal, water, wind). Since people appeared on the Earth, they began using the sun's energy. According to archaeological data, it is known that housing preference was given to quiet places, closed from the cold winds and open to the sun's rays.
Perhaps the earliest known solar system can be considered the ...

Introduction

Water degradation is the contamination of water (inland water that’s not saline) with materials or substances that result in the water being unfit for human, plant or animal use. Pollution may occur from chemicals, fecal waste, pesticides, sediments, petroleum or heated substances. Water sources that have been polluted are unfit for fishing, swimming, and the water is unfit for human consumption. Water quality degradation is, as a result, diffuse contaminants at the source with the spatial as well as the temporal variability that’s associated with the sources (Intergovernmental Panel on Climatic Change, 2007). It is more difficult to ...

The decrease in world’s petroleum and oil supply has led the nations to look for alternate sources of energy. As a result of this short-supply, unconventional gas reserves are gaining importance as alternative source of crude oil, where the unconventional gas reserves are estimated to contribute to 45% of the US gas production by the year 2035. Large-scale extraction of unconventional natural gas has resulted in the development of new and untested extraction technology such as hydraulic fracturing or hydrofracking, which is expected to develop rapidly in the next few decades near human settlements and pose a health hazard (Adgate, ...

Introduction: What if the countries are not cooperating to protect the ozone layer?

Thesis: Because of the industrial advancements, emissions of non-degradable substances known as CFCs have infiltrated the ozone layer. While there are specific measures that have been taken to reduce these emissions, countries must cooperate in a bid to protect the ozone layer.
I. The CFCs and their impact on the ozone.

II. Measures already taken.
- Cessation of CFC emissions since 1995 by the developed countries.
III. Production Paragraph.
- Developing countries that are still producing too much cfcs are likely to reduce emissions due to their effects.
IV. Conclusion.
- Countries need to ...

[Professor’s name appears here]
[Date appears here]

Geothermal energy (GE): An Introduction
Geothermal energy can be termed as a heat found inside the Earth. This type of heat is an uncontaminated, renewable fuel resource that supplies the energy needs of millions of people in the USA as well as all over the world for various utilizations and applications. Though domains like hot springs are more noticeable and are generally the first source of GE resources, the heat underneath the earth is accessible universally, and the scientists are able to utilize in a wide variety of circumstances.
...

Volcanism refers to the eruption of magma or molten rock, or hot water and steam, including volcanoes, pyroclastic fragments, geysers, as well as fumaroles on top of the surface of a planet (Encyclopedia Britannica 1). A volcano refers to the vent through which gases and magma are discharged. When a planet loses its internal heat it results to volcanism. When a rock that is close to the surface becomes hot sufficiently enough to melt, it results to a volcano being formed.
On the Earth, volcanism often occurs in association with plate boundaries. Where two plates move apart, for instance at mid-ocean volcanic ...

The contribution of Alfred Wegener

William C. McCullough
LAIS 370 History of Science
Colorado School of Mines
Abstract
This paper discusses the role of Alfred Wegener in the discovery of the Plates tectonics theory. It is believed that the modern day plate tectonics theory is an advancement of continental drift theory which was discovered by Wegener. The study will seek to explore his efforts and contribution to modern science and how he has helped to shape the world.

Overview

Plate tectonics also known as continental drift theory describes that the earth was at one time many years back a super continent whereby ...

Introduction

Laser technologies are used in different fields such as instrumentation, micro manufacturing, medicine, imaging and communications. Application of lasers to micro manufacturing is known to have a number of benefits which include capability of remote processing, noncontact processing, no tool wear, automation and the possibility of machining brittle and hard materials. The use of laser processes for specific manufacturing processes has been around for decades. However, the share of micro applications within the whole laser market was a minor one, with laser welding and cutting dominating the laser application sector. With the increase in miniaturization and higher integration of consumer products, ...

Introduction

The restoration of the Sistine Chapel, perhaps one of the most famous examples of western art by Michelangelo began in 1965 as an initiative by Deoclecio Redig de Campos, who would later become the Vatican Museums’ general director in 1971. The scientific aspects arising in this project would be handled by Fabrizio Mancinelli as well as Gianluigi Colalucci, Maurizio Rossi, Bruno Baratti and Giorgio Bonetti master restorers. The cleaning of these frescoes would include only the depictions of the scenes with Jesus and Moses in the fifteenth-century paintings. At this time, the two 16th century frescoes located at the ...

Geology of Mars

Similar to Earth, all of the planets, including Mars, are defined by geologic processes. Of course, these geologic processes and conditions differ among the planets depending on various factors, such as the relative distance to the sun, composition of the planet, vulnerability to impacts and collisions, etc. Of all the planets, Mars is the closest to Earth-like conditions (Head 1).
On the surface of Mars, as well as all of the telluric planets, the most abundant minerals are silicates. On Mars, the origins of most of the silicates are of basaltic to andesitic basaltic. On its surface, the main ...

Abstract

Global warming is a concept which is still developing in the modern times due to the continuing studies and researches regarding its natural cause and effects. Global warming is a term used to describe the rise of the average temperature of the earth which is experienced for only a century. Global warming and climate change could also refer to the current changes in the climate system of the earth as well as its effect on the ecosystem and on humans. The common cause of global warming and climate change is the great increase in the amount of greenhouse gases ...

Stratospheric Ozone Depletion

Ozone depletion is a natural phenomenon of the earth’s stratosphere due to the presence of free radicals that are from natural causes such as volcanic activity. However, as man evolved, he discovered his environment and built industries during the industrial revolution. These industries emitted tones of pollutants into the atmosphere, including compounds Ozone Depleting Substances. The continuous use of CFCs also contributes to the effect significantly. The worst case of ozone depletion ever recorded happened in 2006, during winter and early spring in Antarctica. That sounded a loud alarm to environmental scientists, political leaders and civil organizations come ...

Abstract

This paper describes the chemical reactor with a fluidized bed of catalyst, its advantages and disadvantages. The works also includes design elements and technologies of creation of the fluidized bed. The separate section describes the observed similarity of the behavior of the liquid in the fluidized bed. The conclusion describes the main spheres of application of the chemical reactor. During the study, it was concluded that this type of chemical reactor is widespread due to the large number of advantages that largely compensate the disadvantages. In general, it is difficult to name the industry, where the fluidized bed is ...

Introduction

Water pollution is a term that refers to the contamination of water in water bodies. These water bodies include the oceans, lakes, rivers, aquifers, and groundwater. Ideally, water pollution occurs when pollutants are discharged in a direct or indirect way into the water bodies without appropriate measures of treatment to eradicate them (Goel 14). Some of these pollutants are categorized as chemicals, as well as, other foreign substances that are deemed to be detrimental to the general plant, animal and human health. Precisely, some of these substances include fertilizers, pesticides that are evolved from the runoffs in the agricultural field and ...

The Native Americans that can be found in North America have their myths explaining how they were created and the reason as to why they occupy certain regions in America. Moreover, these myths are seen to be very different from each other and have different concepts and ideologies. The reason as to why there is no unified body associated with the mythologies is due to the different tribal groups that make up the Native Americans (Birrell, 1993). The tribes have their own creation stories in relation to how the world came into being, the appearance of people, and the ...

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. Typically, ...

Introduction

This research paper discusses the phenomenon of earthquakes – the geography and distribution of where they occur, and the explanations of the forces and processes involved. The theory explains why they occur more in some places than others and describes related phenomena including volcanic activity.

The Research

The accepted theory of the cause of most earthquakes cites the continuous movements of huge sections of the earth’s crust (known as the lithosphere), which comprises tectonic plates (Earthquakes and Plate Tectonics” 1977), which are further classified as either oceanic or continental plates, dependent on their location on the Earth’s surface: beneath the ...

Every planet in the solar system has its special features, which make them unique in comparison to other planets. For example, Mars is famous for iron compounds; Saturn is famous for its rings etc.
Venus is the second planet from the Sun. It is the sixth largest planet in the solar system. The orbit of the planet is the most circular among others (Nineplanets.org). This means that the orbit of the planet resembles a circle and not an ellipsis like Earth’s one. Many scientists call Venus the Earth’s sister planet because both of them have many similar ...

A moon can be defined as a natural satellite that rotates all round the planets. Moons usually vary in their sizes with every planet being bigger than its moon. However, there are several moons which are bigger than Pluto planet and only two moons that are larger than Mercury. Mercury and Venus don’t have any moons while the earth has just one moon (Space Today Online). The earth’s moon is one of the largest natural satellites with 2,160 miles diameter. This moon is much closer to the earth than the rest and can be seen through the ...

Oil and natural gas are the two primary types of fossil fuels that the world relies on for energy and also for various other products. Crude oil and gas are mined beneath the earth’s surface where they formed a long time ago. The products origin can be traced back to the remains of animals and plants that existed millions of years ago as marine life. The living materials die and sink to the sea floor where they pile on top of each other. The successful conversion of the remains into oil or gas is only possible if the ...

The continental landscape features are reflected with analogous features on the ocean basins. Plains, Plateaus, volcanic cones, rolling hills, mountains, and valleys are found underwater in the oceans just like on land. However, research reveals that the largest mountains found beneath ocean waters are higher as compared to those on the continent. Also, the plains found under water are more extensive and flatter than those on the dry land.

The Shape of the Land

The ocean basins can be referred to that surface of the Earth that extends towards the sea from the margins of the continent. Ocean basins are usually submerged in the ...

Reflection and Refraction

As air is the most essential resource for our survival, the light is the most important phenomenon for our perception. Although being a pretty complex phenomenon, the behavior of light in our everyday interactions can be simplified and approximated to the geometrical optics. In this field of physics, the light propagation is described in terms of rays. The rays come through the wave fronts (being tangent to them) and are an effective approximation because usually light moves in straight lines. The rays are linear in homogenous media; they can bend or be curved if the refractive index of the ...

Investigating how light intensity will affect the rate of photosynthesis, with the help of DCPIP, in Spinach leaves.

The aim of this experiment is to find out how the rate of change of light intensity affect the photosynthesis in spinach leaves.
Successful farming of food crops is very essential for both the nutritional and financial health of a nation. Governments of almost every nation invest land and labour to crop farming, as much as is possible, keeping in mind the other needs of a country. But, however, due to many reasons the maximum crop yield possible is not always achieved.
For the production of a healthy crop certain conditions are necessary. The primary among these conditions are ...

Global warming is a problem that is actively discussed nowadays. Very often new hypotheses appear about its impact on the Earth and human beings. At first, we need to classify the information available, to create a clear understanding of global warming effect on our planet.
Global warming is the increase in the medium annual temperature of the Earth's atmosphere and oceans, because of much variety of reasons (increasing the concentration of gases in the Earth's atmosphere, solar variability or volcanic activity, etc.) (Haugen 14). Sometimes we use definition "greenhouse effect", but there is some differences between this two concepts. Greenhouse ...

B1.Nowadays the development of a culturing technique to populate scaffolds is the greatest challenge in the field of tissue engineering. In this work, it will be shown how the spinner flask dynamic cell cultures should be used to populate hydroxyapatite microcarriers (HA-MC) for bone tissue engineering [B1].

Introduction:

B3 In bone tissue engineering, the most widely used scaffold materials is Calcium phosphate ceramics (e.g., hydroxyapatite and tricalcium phosphate), and that due to their special properties, they are osteoinductive and osteoconductive [1–4].
B2 So far a vast variety of shapes and sizes have been developed, and it’s proved that the ...

LIST OF FIGUTES 3

LIST OF TABLES 3
1. ELECTRO DISCHARGE MACHINING – EDM 4
1.1 Introduction 4
1.2 History of Electro Discharge Machining Process 5
1.3 Detailed Explanation of how the process works 6
1.4 Uses/applications of the Electro Discharge Machining Process 8
1.4.1 Prototype production 8
1.4.2 Coinage die making 8
1.4.3 Small hole drilling 8
1.4.4 Metal disintegration machining 9
1.5 Examples of products produced by Electro Discharge Machining Process 9
1.6 Advantages of Electro Discharge Machining Process 9
1.7 Limitations of Electro Discharge Machining Process 10
2. ...

Venus: Location, Size, Composition and Features

(Author’s Full Name)
(Institution Name)

Introduction

Venus is the second planet from the sun in our solar system. Its orbital day lasts for approximately 225 Earth days, and it does not have a moon or any other similar satellite orbiting around it. It is the brightest and the most easily recognizable astral body from the Earth, after the Moon. Named after the Roman Goddess of love and fertility and often linked with femininity in popular culture and mythology, this paper examines the physical description, unique features and the significance in the solar system of the planet Venus.

Venus is ...

Name1Name:Teacher Name:Title: Global Warming and Saving The PlanetDate: Global Warming and Saving The Planet Global warming is currently the greatest threat to our planet. Global warming is increase in the temperature of the earth’s surface due to emission of carbon-di-oxide, methane, water vapor, ozone, etc. It has the greater impact on the climatic changes, rise in the sea level, cyclones, etc. The surface temperature of our planet increased rapidly in the past century. Scientists found that 0.5 degree temperature has risen since 1990 and it is continuing in the increasing rate. It is mainly due to the increase ...

Introduction

This research paper discusses the phenomenon of earthquakes – the geography and distribution of where they occur, and the explanations of the forces and processes involved. The theory explains why they occur more in some places than others and describes related phenomena including volcanic activity.

The Research

The accepted theory of the cause of most earthquakes cites the continuous movements of huge sections of the earth’s crust (known as the lithosphere), which comprises tectonic plates (Earthquakes and Plate Tectonics” 1977), which are further classified as either oceanic or continental plates, dependent on their location on the Earth’s surface: beneath the ...

Abstract

With the advancement in technology, there are many ways in which technology have been applied in the military. The success of any war is dependent on the advancement of the tools and weaponry that has been applied and also dependent on the technology that has been applied. Information technology has infiltrated in the military and has been a contributing factor in the enhancement of technology that has been used. The weapons and the strategies for undertaking mass destruction are now dependent on information technology. This is evident in the way weapons of mass destruction make use of technology in order ...

1. Introduction
Nano is derived from the Greek word, Nanos, meaning extremely small. Nanotechnology, as the name indicates, is the science and technology of preparation, characterization and application of matter in the size range of a billionth of a meter (1 x 10-9). Nanotechnology can be used to manipulate atoms and molecules, creating new materials and machines with greatly improved qualities as compared to those of their precursor materials. This is achieved by constructing layers of atoms or molecules through various fabrication methods such as solution processing, melt processing, in-situ deposition etc. In addition to functioning as nano-scale devices, nanoparticles ...

Physics of the Landing

Curiosity rover which is the size of a small car a one tone robot landed on mars safely and it was declared as one of the most difficult and daring attempted interplanetary missions costing one point six billion dollars. The rover which is six wheeled was lowered on three nylon tethers to the surface of the Martian. The tethers were suspended from a sky crane hovering air borne with retro rockets. This is one of the most advanced planetary activity currently carried out by the engineers of physics of landing and it has took the world by surprise since many people did ...

Seismic Surveying: The Cost-Benefits of Carrying out 3D Seismic Reflection Surveys for Reservoir Delineation and 4D Seismic Reflection Surveys for Reservoir Management

Introduction

Many oil and gas companies regardless of their size, whether small or large, have heavily put reliance on 3-D seismic data to effectively and accurately delineate fields and thus discover new reserves. A 3-D survey has turned out to be more effective than a 2-D survey in exploration project. In a 3-D survey, one is able to study the structures and composition of the various layers underneath and therefore, being able to put on the correct gadgets to work. ...