Isaac Newton by James Gleick | Review

10 Apr 2018

6 (2,132 )

Trusha Patel   Isaac Newton by James Gleick Opinion Isaac Newton was the most famous scientist of his generation and one of the most recognizable physicists of all time. He accomplished amazing feats; he “pushed open a door that led to a new universe” (8). Some of his major achievements include the application of the law of gravity to the motion of planets, the ...

Click here to read more arrow

Forces in Skeletal Structure of the Arm

12 Mar 2018

11 (4,266 )

Bio Mechanics and Kinetics Task 1. Produce a labelled diagram showing the forces involved on the skeletal structure of a human arm as a weight is being held at a particular angle. Your report should use the principle of moments to fully describe all of the forces that are being applied at various points along the forearm through the muscle and tendons. (Assessment criteria 1.1, 1.2, ...

Click here to read more arrow

Vibrating Sample Magnetometer (VSM)

12 Mar 2018

4 (1,494 )

Robert Konstandelos   Operation A sample is made to oscillate using a vibrational unit extended on a rod. The sample is placed between two electromagnetic pieces which are used as the applied field for this this experiment. With the sample oscillating induces a voltage between the search coils which creates a signal to determine the magnetic properties of the sample. Reference coils are used ...

Click here to read more arrow

Measuring Concentration of Natural Gas in Air

12 Mar 2018

9 (3,272 )

Valentin Haemmerli Measuring concentration of natural gas in air using a catalytic bead sensor and a Wheatstone bridge circuit   Abstract. A vacuum system and a catalytic bead combustible gas sensor were used to calibrate and test an apparatus for measuring the concentration of natural gas in air. Total concentrations ranged between 0%-5% and total pressure from 0.5 bar to 1.5 bar. A Wheatstone ...

Click here to read more arrow

Crystal Growth and Nonlinear Optics

12 Mar 2018

8 (2,840 )

CHAPTER 1 INTRODUCTION TO CRYSTAL GROWTH AND NONLINEAR OPTICS 1.1 INTRODUCTION Crystal growth is regarded as an ancient subject, owing to the fact that the crystallization of salt and sugar were known to the ancient Indian and Chinese civilizations. The subject of crystal growth was treated as part of crystallography and never had an independent identity until the last century. It has a long history of evolution ...

Click here to read more arrow

The Inhibitory Effects of Low Power Radiofrequency

12 Mar 2018

8 (2,882 )

Inhibitory effects of low thermal radiofrequency radiation on physiological parameters of Zea mays seedlings grown Mihaela Răcuciu1, Cora Iftode2 and Simona MiclăuÅŸ3   Abstract. The inhibitory effects of low power radiofrequency field on physiological parameters of Zea mays plantlets developed from exposed seeds were obtained in present experiment. Identical biological samples of 30 Zea mays seeds with a uniform genophond were exposed to a continuous wave ...

Click here to read more arrow

Synthesis Techniques for Fabrication of Nanofibers

12 Mar 2018

7 (2,669 )

Chapter # 02 Synthesis Techniques Introduction The different synthesis techniques for fabrication of nanofibers and nanoparticles will be discussed briefly in this chapter. The selected techniques and the experimental procedure for the synthesis of the nanoparticles and composite nanofibers will be discussed in detail. Synthesis Techniques for Nanoparticles Synthesis method being used for the preparation of nanomaterials is one of the most important factors that affect ...

Click here to read more arrow

New Generation of a Mobile Primary Frequency Standard

12 Mar 2018

6 (2,149 )

New generation of a mobile primary frequency standard based on cold atoms S T Müller 1, J de Martin Júnior 1, R D Pechoneri 1, P Santa Catharina1, V S Bagnato2 and D V Magalhães1 Abstract. We have constructed a mobile primary frequency standard using intra-cavity cold cesium atoms and the first results shown the advantages of using this kind of system compared to cesium beam ...

Click here to read more arrow

Study of Ceramic Perovskites-type Oxides (ABO3)

12 Mar 2018

4 (1,589 )

2.0 LITERATURE REVIEW 2.1 Introduction Ceramic perovskites-type oxides (ABO3) have been studied extensively due to the high conductivity and low activation energy. Among of perovskite type-oxide, an investigation of cerate zirconate attracts great attention to the researcher. It is well known as ion conductor and good chemical stability at intermediate temperature. It properties give big impact for development in technological applications like fuel cells, solar cells, ...

Click here to read more arrow

Effect of Ionic Pollution on Aerosol Nucleation

12 Mar 2018

7 (2,442 )

EFFECT OF IONIC POLLUTION ON AEROSOL NUCLEATION AND CLOUD FORMATION ABSTRACT Atmospheric aerosol particles have a strong impact on the global climate and that is the main reason for many observed events of new aerosol formation being not understood. Forwarding, to explain these events one of the theory put is that the presence of ions can enhance the formation of aerosols in the atmosphere. This theory ...

Click here to read more arrow

Strategies to Produce Thermonuclear Plasmas

12 Mar 2018

7 (2,640 )

Elrica Degirmen What is the Joint European Torus and how does it work? The Joint European Torus, or JET, is a physics facility located in the Culham Centre for Fusion Energy in Oxfordshire. Plasma physicists and engineers there are producing thermonuclear plasmas under magnetic confinement in order to show that fusion energy is a reliable source of energy in the future. It is very ...

Click here to read more arrow

Field Programmable Gate Array based Digital Module

12 Mar 2018

8 (2,883 )

Field Programmable Gate Array based Digital Module for Laser Frequency Stabilization A.Rastogi1, N. Batra, S.De2, S.Panja and A. Sen Gupta   Introduction Frequency stabilized lasers are a crucial part in variety of atom-photon experiments such as atomic spectroscopy [1], laser cooling [2], probing the excited states of atoms [3] etc. Depending on the application, a stability in bandwidth from few MHz to sub Hz maybe required. ...

Click here to read more arrow

Polarisation of Light Investigation

12 Mar 2018

6 (2,291 )

Valentin Haemmerli   Abstract. An optical system consisting of a laser, a polariser, a quarter-wave plate, a prism, and a light detector connected to a multi-meter was used to find the transmission axes of the polariser and the quarter-wave plate, find the angle of polarisation of the laser relative to the optical axis and investigate the quality of the polariser and quarter-wave plate by ...

Click here to read more arrow

Medical Treatment Using Computed Tomography (CT)

12 Mar 2018

4 (1,492 )

Breast Plan Part One Treatment Site / Diagnosis: Left Breast Treatment Modality: 2 Dimensional tangential Type of Patient Data: Computed tomography and virtual simulation Technique: Isocentric Prescription Isodose: 40GY in 15# Part Two Computed tomography (CT) was employed as an imaging modality for this treatment. In general, CT is the standard imaging modality employed. This is due to the ability of CT to provide a 3 ...

Click here to read more arrow

Advantages of Metamaterials

12 Mar 2018

4 (1,453 )

Juan Castellanos   The future is here and you wouldn’t believe how far research has come. Through countless experiments and hard work scientists have expanded the limits on what we thought to be impossible via advances in metamaterials. These so called “metamaterials” are artificially constructed improvements over naturally occurring materials commonly used in inventions. These metamaterials are altered at a Nanoscopic scale to give ...

Click here to read more arrow

Effect of Zn Concentration on NiZnFe2O4 Nanoparticles

12 Mar 2018

9 (3,384 )

CHAPTER-7 EFFECT OF Zn CONCENTRATION ON MAGNETIC AND DIELECTRIC PROPERTIES OF NiZnFe2O4 NANOPARTICLES 7.1 INTRODUCTION Ni (1-x) Zn (x) Fe2O4 (x=0.2, 0.4 and 0.6) nanoparticles are synthesized by using coprecipitation method. Zinc is a known metal, its role is important in the modification of ferrite properties by redistribution over the tetrahedral and octahedral sites of the spinel lattice. Rath et al (2002) reported the effect of ...

Click here to read more arrow

Overview of the CO2 Laser

12 Mar 2018

6 (2,297 )

A visit to the CO2 laser on its golden anniversary YiÄŸit Uysallı,* Muhammad Rehan Chaudhry, Adnan Kurt** and Ali Serpengüzel*** Koç University, Microphotonics Research Laboratory, Department of Physics, Rumelifeneri Yolu, Sarıyer, Istanbul 34450 Turkey   Abstract CO2 laser is the high power laser which makes it unique in its own kind and we take honor in revisiting this industry workhorse on 50th year of its invention. ...

Click here to read more arrow

Magnetic Resonance Imaging: Overview and Applications

12 Mar 2018

8 (3,055 )

How does Magnetic Resonance imaging work and how can it influence the future? An Introduction to Magnetic Resonance Imaging[1][2][3]: Magnetic resonance imaging (MRI) is used as an accurate form of disease detection which is usually used to confirm a patients condition, as well as a method of looking at trauma to the brain, examples of which could be bleeding and swelling. Alongside these uses MRI can ...

Click here to read more arrow

Rotational Dynamics Experiment

12 Mar 2018

18 (7,082 )

Introduction: In this lab, we got to experiment with rotational dynamics. The definition of rotational dynamics would be; the study of forces and torques and their effect on motion, as opposed to kinematics (see ref. one). Instead of using the traditional symbols for velocity, acceleration, displacement, and theta; we use symbols for angular velocity, angular acceleration, and angular displacement. In this experiment we got to find ...

Click here to read more arrow

Non Equillibrium Green’s Function Technique

12 Mar 2018

12 (4,448 )

NON EQUILLIBRIUM GREEN’S FUNCTION TECHNIQUE USED FOR THE METAL-INSULATOR-METAL DIODES ANSHUMAN Electronics and Communication Dept. NIT Kurukshetra Abstract – In this paper theoretical analysis of NEGF method, including the transport equation and Poisson equation, is done followed by the derivation of an analytical model using NEGF tunnelling probability through any number of insulating layers. Numerical NEGF simulator are shown matching with the AF-TMM simulator results. ...

Click here to read more arrow

Defect Formation in Carbon-doped Cuprous Iodide

12 Mar 2018

15 (5,655 )

Hui Chen, Mu Gu*, Xiaolin Liu, Xuejun Guo, Bo Liu, Shiming Huang, Chen Ni Shanghai Key Laboratory of Special Artificial Microstructure Materials & Technology, School of Physics Science and Engineering, Tongji University, Shanghai 200092, P.R. China Guoying Zhang College of Science, China University of Mining and Technology, Xuzhou 221116, PR China First-principles calculations have been performed to investigate the carbon-doped cuprous iodide. From the calculated results, ...

Click here to read more arrow

Buoyancy of an Orange: Analysis

12 Mar 2018

5 (1,636 )

Joseph Wong Brendan Mullins Nathan Shoemaker Mike Dorazio Abdul Aldualeg Guillermo Venancio Buoyancy is the upward force from the water needed to stay afloat. Since pressure increases with depth, there is a higher pressure and the bottom of the volume of fluid than the top. The pressure difference results in a net force that will accelerate an object upward. The magnitude of the ...

Click here to read more arrow

Variability of Solar Activity Parameters

12 Mar 2018

4 (1,208 )

Chapter 7: Overall Conclusion and Future Prospect of Research In the present work, efforts have been given to get an idea of variability of solar activity parameters during the recent solar minimum period and also to understand the effect of the solar activity parameters at the F2 region of the ionosphere. As our dependence on technological systems operating in and through the outer reaches of our ...

Click here to read more arrow

Physics Behind the Dambuster’s Bouncing Bomb

12 Mar 2018

10 (3,836 )

Brookie Trant Introduction The Dambuster Raid and the bouncing bomb played a key role in WW2. The aim was to disrupt industrial productivity of Germany. The Raid was also a well-publicised success story when Britain was stretched to breaking point during the war. The bomb was used to destroy the Mohne and the Edersee Dams and flood the Ruhr Valley, thereby destroying a large ...

Click here to read more arrow

- - [thesis title] - - by - - E

12 Mar 2018

7 (2,520 )

Efthymios Stratis A thesis presented on the history of astronomy and the solar system, beginning with the birth of the solar system, and covering the geology, atmosphere, and moons of Mercury, Venus, Earth, Mars, Jupiter, Saturn, and Uranus. Glossary Asteroid. A very small planet ranging from 1,000 km to less than one km in diameter. Asteroids are found commonly around other larger planets. Atmosphere. ...

Click here to read more arrow

RES Subglacial Mapping for Extraterrestrial Colonization

12 Mar 2018

4 (1,515 )

RES Subglacial Mapping Used to Assess Extraterrestrial Colonization Eric Phelan Successful colonization of another planet involves countless variables being addressed prior to mission launch. Water, being essential to sustaining human life, must be available in sizable quantities in order to establish a fruitful, long-term colony. But even with water filtration systems operating at one hundred percent efficiency, a viable native source of water must be identified ...

Click here to read more arrow

Theories of Black Holes

12 Mar 2018

4 (1,396 )

Zhiting Liu The Black Hole The first impression of a black hole may be heard like a dark and a very horrible hole. It was a big planet that you cannot ignore. It is the object that have a very strong gravitational, even the light cannot escape. When the Schwarzschild radius of the star is tiny, even the light vertical emitting to the surface ...

Click here to read more arrow

Experiment to Determine the Coefficient of Friction

12 Mar 2018

7 (2,700 )

Student Name: Ahmad Raza Summary: This experiment has two aims. The first aim of this experiment is to determine the coefficient of friction on an inclined plane by using various materials tray. Secondly, to verify that the force have already found which were required to move a body on an inclined plane. We have provided apparatus to do this experiment that include stainless steel plane, load ...

Click here to read more arrow

Health Dangers of Cell Phones and Ethical Selling

12 Mar 2018

5 (1,962 )

Karabo Dhlamini Table of Contents Research Question Introduction Hypothesis Definition of Electromagnetic radiation Definition of Concept Advantages of Mobile Phones Disadvantages of Mobile Phones Conclusion Glossary Bibliography Acknowledgements No table of figures entries found. Research Question In conjunction with the various health issues associated with society and its use of mobile phones, is it ethical for retailers to sell this device without informing ...

Click here to read more arrow

Conditions for Equilibrium Experiment

12 Mar 2018

4 (1,476 )

Laboratory Report Tricia Desierto, Luis Diaz, Karhen Estella, Gabrielle Beatrix Francisco Department of Biological Science College of Science, University of Santo TomasEspaña, Manila, Philippines Abstract The object is said to be in a state of equilibrium, when the forces acting upon an object are balanced. There were four activities done in the experiment. In the first activity the equilibrant force was determined. The second activity, unknown ...

Click here to read more arrow

Intelligent Transmit Power Control

12 Mar 2018

7 (2,511 )

The Intelligent Transmit Power Control In Expanding The Limitation Of Range For Bluetooth Communication For Indoor Navigation System Jamilah Binti Mohamed   INTRODUCTION As time goes by, the technology is grown up very fast. The technology is created and invented according to the necessities of consumers. In addition, there have many scientist did researched and experiment to find the solutions for our problems in ...

Click here to read more arrow

Sensing of Human Blood Group by SPR Based Sensors

12 Mar 2018

8 (3,173 )

Contents- Introduction Basic of Surface Plasmon P and S polarized light waves Properties of Surface Plasmon Waves Transverse Electric and Transverse Magnetic Waves Dispersion Relation for Surface Plasmon Principle Total Internal Reflection N-Layer Model and Fresnel’s Relation Evanescent Waves Resonance Condition Minimum of Reflectance at Resonance Drude Model For free electron gas Angular Interrogation and Wavelength Interrogation Performance parameters for SPR based ...

Click here to read more arrow

New Ternary Fe-Ni-Cu Invar Alloys Preparation

12 Mar 2018

8 (2,931 )

Preparation and Characterization of New Ternary Fe-Ni-Cu Invar alloys S Ahmada, A B Ziya[1], a, A Ibrahimb, S Atiqb, N Ahmada and F Bashirc   Abstract. Six alloys of Fe65Ni35-xCux(x= 0, 0.2, 0.6, 1, 1.4, 1.8 at.%) have been prepared by conventional arc-melting technique and characterized by utilizing in-situ X-ray diffraction (XRD) technique and differential scanning calorimetry (DSC) at a range from room temperature to 773 ...

Click here to read more arrow

Porous Silicon p-type with Different Current Density

12 Mar 2018

9 (3,284 )

Photoluminescence and Band Energy Gap For Porous Silicon p-type with Different Current Density and Different Etching Time 1Mohammed Jabbar Hussein, *1W. Mahmood Mat Yunus, 2Halimah Mohamed Kamari 3Josephine Liew Ying Chyl,   Abstract Photoluminescence (PL) for porous silicon lead to studied by many researcher .this phenomenon which has application in many devices. Porous silicon can be used in the optoelectronic devices and sensor. Therefore, the study to ...

Click here to read more arrow

Beam Behaviour and Magnetic Field of K500 Scc

12 Mar 2018

5 (1,712 )

Vinay Singh#, A Dutta, A Agarwal, C Das, B Naik, Z A Naser, S Paul, U Bhunia, J Pradhan, J Debnath Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064 Abstract The extraction of the beam from the K500 Superconducting Cyclotron in Kolkata is posing a great challenge. After getting the internal beam, lots of effort was made to extract the beam and thereafter various experiments ...

Click here to read more arrow

Analysis of Optical Imaging Technologies

12 Mar 2018

7 (2,435 )

PAI is a relatively new imaging modality which displays optical absorption contrast with a high resolution at depths of up to a few centimetres. Tissue is illuminated using short laser pulses and ultrasound waves are generated within the tissue upon optical absorption. An image is formed of the optical absorption contrast based on the arrival times and amplitudes of the acoustic waves (Wang 2009, Lai and ...

Click here to read more arrow

Helicopter Toy Parts and Material Analysis

12 Mar 2018

6 (2,237 )

Table of Contents 1. Introduction 2. Selection Process of Suitable Materials 3. Potential Failure of Product 4. Sustainable Engineering Aspects of Selected Materials 5. Practical materials evaluation Helicopter Base Heli Pipe Helicopter Case Helicopter Rotor 6. Conclusion 7. References 1. Introduction Now-a-days all over the world use of technology has been increased more than demands. In all aspects technology is surrounded us. Such use of technology ...

Click here to read more arrow

History of Albert Einstein

12 Mar 2018

9 (3,452 )

Reiyyan Tariq Nizami Albert Einstein - The Political Activist behind the Physicist   Albert Einstein is a name known by nearly every child who has the luxury of learning about science and physics. Throughout the world he is known for his remarkable work in physics where he developed the theory of relativity. However most know him for his infamous mass – energy equivalence formula ...

Click here to read more arrow

Analysis of SIF Intrinsic Dynamics

12 Mar 2018

9 (3,348 )

Abstract. It was recently found that spectral solar incident flux (SIF) as a function of the ultraviolet wavelengths exhibit 1/ftype power-law correlations. In this study, an attempt was made to explore the SIF intrinsic dynamics versus a wider range of wavelengths, from 115.5nm to 629.5nm. It seemed that the intermittency of SIF data set was very high and the revealed DFA-n exponents were very close to ...

Click here to read more arrow

Ultrasound Imaging Systems

12 Mar 2018

7 (2,493 )

1.1 INTRODUCTION An ultrasound scans also known as ultrasonography. Ultrasound will form the image by scanning using the high frequency sound waves. This device suitable to evaluate some part inside of the body. In physics, ultrasound is a sound with a frequency humans cannot hear. In diagnostic sonography, the ultrasound is usually between 2 and 18 MHz. (Anon 2012) 2.0 THE ULTRASOUND IMAGING SYSTEM Figure ...

Click here to read more arrow

Optical and Surface Studies of α-Al2O3 Powders

12 Mar 2018

10 (3,939 )

X-Ray Diffraction, Optical and surface studies of α-Al2O3 powders synthesized via single step solution combustion method ABSTRACT α-Al2O3 powders were synthesized at 500 ⁰C via solution combustion synthesis (SCS) technique using urea as an organic fuel. The sample was characterized by X- ray diffraction (XRD), Optical spectroscopy and X-ray photoelectron spectroscopy (XPS) without any further thermal treatment. XRD study reveals that sample crystallized directly in the ...

Click here to read more arrow

Applications of Hard X-ray Photoelectron Spectroscopy

12 Mar 2018

6 (2,385 )

Applications of Hard X-ray Photoelectron Spectroscopy to bulk materials Jingru Chi ABSTRACT X-ray Photoelectron Spectroscopy is a powerful, relevant and non-destructive method for studying atoms, molecules and surfaces [1]. However, investigations are limited to atoms, molecules and surfaces since low energy electrons limit the depth resolution, resulting in three-dimensional bulk state cannot be detected. Hard X-ray Photoelectron Spectroscopy (HAXPES) with high kinetic energy ...

Click here to read more arrow

OPV Cell Fabrication

12 Mar 2018

8 (3,120 )

To fabricate the inverted OPV cells with the structure of ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag, the ITO was first coated onto a glass substrate. The ITO coated glass substrate was then cleaned by ultra-sonication in detergent solution, deionized water, acetone and isopropanol sequentially for 10 minutes each. After that, the pre-cleaned and pre-patterned ITO substrate was exposed to a UV-ozone treatment for 10 more minutes. A solution of ZnO was ...

Click here to read more arrow

Nanostructure Optical Biosensors

12 Mar 2018

9 (3,513 )

5.1 Mach–Zehnder nanowire biosensor for detection of E.coli Silica nanowires [208] offer several advantages over other types of nanowires since they are based on materials used in the most important photonic and opto-electronic applications within the visible and the near-infrared ranges and as a result their optical properties are familiar [209]. Light guided along the optical nanowire leaves a large fraction of the guided field outside ...

Click here to read more arrow

Highly Homogeneous Copper Ferrite Nanoparticles Production

12 Mar 2018

4 (1,212 )

SUMMARY AND CONCLUSION A simple and economical route has been prepared for producing three series of highly homogeneous copper ferrite nanoparticles. The ferrite sample was prepared by conventional oxide ceramic method.The ferrite system formed isCuFe2-2yAl2yO4(where y=0.0, 0.05, 0.15 & 0.25). The effect of aluminum content on structural, electrical and magnetic properties was studied. The microstructural properties of the prepared samples are investigated using X-ray diffraction, Scanning ...

Click here to read more arrow

Mn0.5Zn0.5Fe2O4 Nano-material: Hydrothermal Synthesis

12 Mar 2018

4 (1,443 )

Title: Hydrothermal synthesis and photocatalytic application of Mn0.5Zn0.5Fe2O4 nano-material for degradation of Reactive Blue H5R dye In the proposed research work Mn0.5Zn0.5Fe2O4 nano material will be synthesized using hydrothermal technique for the degradation of reactive blue H5R dye. The chlorides of manganese, iron and zinc will be used for the synthesis of the Mn0.5Zn0.5Fe2O4 nano material. Then synthesized material will be used in water treatment for ...

Click here to read more arrow

Dispersion Properties of the Propagation of Linear Waves

12 Mar 2018

10 (3,757 )

ABSTRACT In electron-positron plasmas some of the plasma modes are decoupled due to the equal charge to mass ratio of both species. The dispersion properties of the propagation of linear waves in degenerate electron–positron magnetoplasma are investigated. By using the quantum hydrodynamic equations with magnetic fields of the Wigner–Maxwell system, we have obtained a set of new dispersion relations in which ions’ motions are not considered. ...

Click here to read more arrow

Scattering of Light

12 Mar 2018

9 (3,213 )

Callum Lim Contents 1. Rayleigh scattering 1.1 Mid-day 1.2 Sunrise and sunset 1.3 Night-time 2. Mie scattering 2.1 Clouds 3. Pollution 3.1 Light pollution 3.2 Haze 4. Personal reflections 5. Conclusion 6. Bibliography 1. Rayleigh scattering When a beam of light travels through particles which are smaller than its wavelength, it is possible these particles scatter the light beam in a process known as ...

Click here to read more arrow

Theories of Friction

12 Mar 2018

4 (1,554 )

Keith Tan   Friction According to the Encyclopaedia of Britannica, a friction is a force created by rubbing and can slow things down and then ultimately stop them. It is a kind of force that resists the sliding or rolling of one solid object over another. (Encyclopaedia of Britannica, 2014) Frictional forces, such as the traction needed to walk without slipping, may be beneficial; but they also ...

Click here to read more arrow

Chaotic Curiosity or Curios Chaos

12 Mar 2018

7 (2,458 )

Abhishek Tiwari The word science comes from “scientia”, Latin word for knowledge. Webster’s dictionary defines science as “the knowledge covering the general truths of the operations of general laws, especially as obtained and tested through the scientific method and concerned with the physical world”. In a layman’s interpretation science is a systematic way to obtain the knowledge about the mystifying secrets of Mother Nature ...

Click here to read more arrow

Quantum Mechanics Using Back-of-the-envelope Calculations

12 Mar 2018

7 (2,689 )

YIP Chung On     INTRODUCTION Calculations in quantum mechanics are very often lengthy and mathematically involved, and some problems are impossible to get an analytical solution. Our goal, rather than obtaining an exact solution, we try to analyze a problem in quantum mechanics using dimensional analysis and provide a back-of-the-envelope estimate. We choose the ground state problem of a harmonic-quartic oscillator ...

Click here to read more arrow

Open Source Software for Creating 3D Visuals

12 Mar 2018

5 (1,875 )

An open Source Software for creating 3D Visuals and example for possibility of using Smartphone for Physics Education Abstract There are many students who cannot understand concepts and ideas in physics only with plane static diagrams. The understanding of processes, dynamic phenomena or geometric relations can be enhanced with the use of computer animations POV-Ray is a freely available 3D rendering open source package which has ...

Click here to read more arrow

Curvature of the Universe: Analysis

12 Mar 2018

13 (4,984 )

Introduction 1.1 Reviewing of General Relativity 1.1.1 Metric Tensor The equation which describes the relationship between two given points is called metric and is given by Where interval of space-time between two neighboring points, connects these two points and are the components of contra variant vector. Through the function, any displacement between two points is dependent on the position of them in coordinate system. ...

Click here to read more arrow

Analysis of S-d Exchange Interactions in Dilute Cu-mn Alloys

09 Mar 2018

4 (1,465 )

Phenomenological analysis of the s-d exchange interactions in dilute Cu-Mn alloys at helium temperatures AL-Jalali, M. A.   Abstract: The S-d exchange interactions in dilute Cu-Mn alloys was studied on concentration ( C ) varying between 10.5 and 2081.8 ppm of Mn in Cu within the ( 0.03K – 4.2K ) temperature range. Using electrical resistivity data on those alloys, the s-d exchange integral ...

Click here to read more arrow

Velocity of Sound Experiment

09 Mar 2018

8 (2,973 )

Experiment no. 7: Velocity of Sound Laboratory Report Von Dela Rosa, Anna De Vera, Tricia Desierto, Department of Biological Science College of Science, University of Santo Tomas España, Manila, Philippines Abstract Three activities were done in the experiment to demonstrate and further analyze the velocity of sound. In the first activity, the velocity of sound in air and in glass tube was computed. In the second ...

Click here to read more arrow

Monte Carlo Simulation of Transmission Experiement

09 Mar 2018

7 (2,489 )

Fluid Densitometer Design based on Transmission and Scattering Gamma Ray Method using Monte Carlo Approach R.Wirawan, M. Djamal, A.Waris, G. Handayani, H.J. Kim   Abstract. Non-destructive testing is one method in the material testing that was applied and developed for many purposes in the industrial field. Gamma spectrometer is a one method that can be applied for the fluid densitometer. It was studied the potential of the ...

Click here to read more arrow

Deformation Effects: Energy Gap in LDA and GW Approximation

09 Mar 2018

8 (2,911 )

Theoretical calculations and experimental measurements indicating the importance of many-body effects in reduced dimensional systems. We performed ab initio calculations based on density functional theory and many-body perturbation theory in the GW approximation. To illustrate our results, we consider a (8; 0) single wall carbon nanotube and by solving the Bethe-Salpeter equation calculate the macroscopic dielectric function ϵ for both the undeformed and deformed nanotubes. The radial deformation is ...

Click here to read more arrow

Solar Radio Emissions: Investigating Reactivated Prominences

09 Mar 2018

9 (3,221 )

Madeleine Eve Andrew Johnston Solar Radio Emissions in Investigating Reactivated Prominences Literature Review Abstract Astronomical objects that have a changing magnetic field can produce radio waves, which are the longest waves in the electromagnetic spectrum. By studying the radio waves emitted by the Sun, astronomers can acquire information about its composition, structure and motion. This aim of the present project is to use solar ...

Click here to read more arrow

Multiferroics: Explanation of Types and Plants

09 Mar 2018

10 (3,760 )

Chapter 2 Multiferroics 2.1 Introduction to Multiferroics: H. Schmid used the term multiferroic for the first time in 1994. Those materials which combine multiple ferroic properties such as ferromagnetism, ferroelectricity and ferroelasticity are known as multiferroics. Simultaneous coexistence of at least two ferroic properties takes place in the same phase in multiferroics. It has the feasibility of exhibiting coupling between ferroelectricity and magnetism which is known ...

Click here to read more arrow

Detection of Impurities in Nd Doped Phosphate Laser Glass

09 Mar 2018

7 (2,479 )

Detection of the impurities in Nd doped phosphate laser glass by x-ray fluorescence technique Atul Kumar*, M. P. Kamath, A. S. Joshi, P. A. Naik, P. D. Gupta Laser Plasma Division A. K. Singh, M. K. Tiwari Indus Synchrotrons Utilization Division Raja Ramanna Centre for Advanced Technology, Indore 452013, M.P., India *Email: [email protected] Introduction: The advances in laser glass composition and manufacturing have enabled ...

Click here to read more arrow

Factors That Affect Resistance and Electric Power

09 Mar 2018

5 (1,964 )

A report into the electricity practical investigation and problems Samerah Mansha Abstract: This experiment was regarding electricity and its features. The experiment determines factors that affect resistance and electric power. The results showed that by increasing the number of bulbs within the electric circuits affected both electric power and resistance value in both series and parallel circuits. Introduction: The scope of the investigation was ...

Click here to read more arrow

Higher Dimensional Black Hole Corrected Tunneling Radiation

09 Mar 2018

7 (2,500 )

Corrected tunneling radiation of a higher dimensional black hole and generalized second law S. S. Mortazavi[*]1, A. Farmany1, H. Noorizadeh2, V. Fayaz1, H. Hosseinkhani1   Abstract Study the quantum gravitational effects on a higher dimensional horizon, the semiclassical s-wave tunneling radiation of black holes are calculated. It is shown that quantum gravitational effects correct the semiclassical radiation of the horizon space time. Within this ...

Click here to read more arrow

Orr-sommerfeld Stability Analysis of Two-fluid Couette Flow

09 Mar 2018

15 (5,828 )

ORR-SOMMERFELD STABILITY ANALYSIS OF TWO-FLUID COUETTE FLOW WITH SURFACTANT V.P.T.N.C.Srikanth BOJJA1* , Maria FERNANDINO1, Roar SKARTLIEN2   ABSTRACT In the present work, the surfactant induced instability of a sheared two fluid system is examined. The linear stability analysis of two-fluid couette system with an amphiphilic surfactant is carried out by developing Orr-Sommerfeld type stability equations along with surfactant transport equation and the system of ...

Click here to read more arrow

Applications of Ultrasound in Medicine

09 Mar 2018

6 (2,345 )

AB Assessment - Using Waves Introduction Ultrasound is a sound wave with an oscillating pressure wave with frequencies ranging from 20 kHz until approximately 200 MHz. These frequencies are not audible to humans. Ultrasonic devices are used to detect objects and measure the distance between them. Ultrasound has been more frequently used in medical imaging displaying the patient an object in their body or just generally ...

Click here to read more arrow

Atomic Short Range Order (SRO) in Ni20Pd80 Alloy

09 Mar 2018

10 (3,707 )

An Experimental and Theoretical Study of the Atomic Short Range Order (SRO) in Ni20Pd80 Alloy ------------------------------------------------------------------   Abstract The behavior of atomic short range order (SRO) has been investigated in a polycrystalline alloy of Ni20Pd80 at different temperatures by using diffuse X-ray scattering intensities. The ordering energies and the atomic SRO-parameters (α1) have been calculated by using the electronic theory of ordering in the pseudopotential approximation ...

Click here to read more arrow

Forecasting Ensemble Empirical Mode Decomposition

09 Mar 2018

4 (1,388 )

Introduction This chapter introduces the background of time series and the importance of forecasting. The motivation behind the project is elaborated and finally the aims and objectives are given. 1.1 Background Time series can be defined as a sequence of observations or measurements that are taken at equally spaced timed interval (Xu, 2012). Hence, it is a stochastic process and can be expressed as (Xu, 2012): x(t) = xi; ...

Click here to read more arrow

Theory of Two Magnetically Coupled RLC Circuits

09 Mar 2018

7 (2,626 )

CHAPTER 3 In many physical situations coupling can be created between two or more oscillatory systems. For instance, two pendulum clocks which are mounted on the same wall will be coupled by the flexing of the wall as each swing. Similarly, electronic devices frequently contain several tuned circuits that may be deliberately coupled by another circuit element, or even accidentally by stray fields. In all these ...

Click here to read more arrow

Expressions for Velocity of Sound in Different Media

09 Mar 2018

8 (3,053 )

VELOCITY OF SOUND WAVE IN STRINGS: The velocity, V of a sound wave in strings is given by the expression. V= , = mass per unit length or linear density = Where r =radius of the wire, = density of material of the string or wire and T = tension VELOCITY OF SOUND WAVE IN SOLIDS The velocity, V of a sound ...

Click here to read more arrow

Mechanisms for Optical Limiting

09 Mar 2018

9 (3,497 )

Chapter 2 2.1. Reverse Saturable Absorption In the mid 1960s shortly after the invention of the laser, many researchers were investigating dyes for potential application to Q-switching of the laser cavity. For this application, dyes were sought that would bleach to transparency under intense illumination (saturable absorbers). Guiliano and Hess [2a] in 1967 were investigating vat dyes and their modified cousins and noted some examples that ...

Click here to read more arrow

Flow in Pipe Network Analysed Using Hardy Cross Method

09 Mar 2018

5 (1,672 )

Table of Contents 1.0 Introduction 2.0 Procedure for Hardy Cross method: 3.0 Flow in Pipe Network analysed using Hardy Cross method 4.0 Advantages 5.0 Conclusion 6.0 References 1.0 Introduction Piping networks have quite a wide range of practical applications, from water and gas distribution systems to air conditioning installations. Although simple problems, such as for instance, a single branch connecting two reservoirs, may be solved analytically, ...

Click here to read more arrow

Monochromatic and Dichromatic Light Wavelength Measurement

09 Mar 2018

10 (3,791 )

Monochromatic and Dichromatic Light Wavelength Measurement using Michelson Interferometer Alireza Safaripour[1] The current paper studies the theory, operation and applications of Michelson interferometer. After the introduction of the working concepts of the interferometer, the theory behind measuring the wavelength of monochromatic and dichromatic light using this interferometer is presented as two samples of its application. Furthermore, these measurements are performed on a simple Michelson ...

Click here to read more arrow

Car Accidents: Causes, Statistics and Prevention

09 Mar 2018

6 (2,158 )

Introduction Cars today play a vital role in our lives. They bring ease and satisfaction to our lives, because these vehicles help us transport from one place to another without exerting so much effort on it. Wherever you desire to go cars are the fast and easiest solution for your problems. Plus it’s mostly used in our daily activities, transportation from home to school safely, going ...

Click here to read more arrow

Determination of the Focal Length of a Convex Lens

09 Mar 2018

17 (6,436 )

Shaikh Ilyas AIM: To determine the focal length of converging lens and it’s radius of curvature. HYPOTHESIS: The relationship between u and v and the focal length f for a convex lens is given by . Where f is the focal length, u is the distance between the object and the lens v is the distance between the image and the lens. Real and ...

Click here to read more arrow

Luminescence in Low-dimensional Nanostructures

09 Mar 2018

7 (2,424 )

NANO AU RSY Luminescence in Low-dimensional Nanostructures: Quantum Confinement Effect, Surface Effect Whenever the carrier localization, at least in one spatial direction, becomes comparable or smaller than the de Broglie wavelength of carriers, quantum mechanical effects occur. In this limit the optical and electronic properties of the material change as a function of the size and the system is called a nanostructure. As the ...

Click here to read more arrow

Investigating the Accuracy of the Air-column Length

09 Mar 2018

5 (1,986 )

1.0 Introduction (max 500 words) Sound is a vibration that transmits as a typically audible mechanical wave of displacement and pressure through a medium such as water or air (Wikipedia, 2015). A pressure disturbance that travels through a medium (particle to particle interaction) is called a sound wave. Particles become disturbed, causing one to exert a force to the adjacent particle; hence particles are disturbed from ...

Click here to read more arrow

Effects of South West Monsoon (SWM) on Cloud Cover and Shape

09 Mar 2018

8 (2,872 )

INTRODUCTION An investigation of the cloud shape stability and the cloud covering is presented on the immediate pre and post south-west monsoon (SWM) commencement. The study focuses on Sri Lankan region bounded by longitude 700E-950E & latitude 00-200N during the months April, May & June in the years 2012 and 2013. Monsoon onset is a remarkably abrupt event and has established the criterion to determine the ...

Click here to read more arrow

Time Series Space Phase Qualitative Analysis and Application

09 Mar 2018

7 (2,614 )

  Dan CHICEA1 and Silviu REI2 ABSTRACT: In a coherent light scattering experiment using a laser beam and a cuvette containing a suspension the interference field has a boiling speckle aspect. Using a detector and a data acquisition system a time series can be recorded. A possible definition for the space phase of a time series is defined. The distribution of the velocities and ...

Click here to read more arrow

Introduction to Atmospheric Modelling

09 Mar 2018

10 (3,970 )

Yazdan M.Attaei ABSTRACT An atmospheric model is a computer program that produces meteorological information for future times at given locations and altitudes. Within any modern model is a set of equations, known as the primitive equations, used to predict the future state of the atmosphere [2]. These equations (along with the ideal gas law) are used to evolve the density, pressure, and potential temperature ...

Click here to read more arrow

Friction Experiment: Design and Results

09 Mar 2018

6 (2,058 )

EXPERIMENT 37 Friction I. Introduction Whatever action you do whether it is walking, driving, or when any two surfaces meet there is friction between them. Friction opposes the applied force to an object and opposes the motion of an object. In many of the labs in this course we try to minimize it or neglect it in the lab, but it is there. When we use ...

Click here to read more arrow

Quantum Phase Transition Between U(5) and O(6) Limits

09 Mar 2018

9 (3,450 )

Critical Exponents of Quantum Phase Transition Between U(5) and O(6) Limits of Interacting Boson Model Abstract In this paper, Landau theory for phase transitions is shown to be a useful approach for quantal system such as atomic nucleus. A detailed analysis of critical exponents of ground state quantum phase transition between U(5) and O(6) limits of interacting boson model is presented. Keywords: Landau theory, quantum phase ...

Click here to read more arrow

Synthesis of Strontitum Hexaferrites Nanoparticals

09 Mar 2018

9 (3,334 )

ABSTRACT The SrFe12O19 is hard magnetic material (hexa-ferrite) with magneto plum bite structure . It has attract much attention in past few decades due to their Scientific & Technological applications & in the frequency rages of microwave to radio frequency. Due to used for high frequency application in multilayer chip inductor. This is due to high magneto crystalline anisotropy , High curie temperature, High Electrical resistivity ...

Click here to read more arrow

Analysis of the Doppler Effect

09 Mar 2018

7 (2,603 )

Assignment 3: topics and themes in physics- oscillations and waves Doppler radar A Doppler radar is specialized radar that uses the Doppler Effect to produce data about an objects velocity at a given distance. Doppler radar works by bouncing microwave signals at the desired target and then listening to its reflection, then the returning frequency is analysed to see how it has changed from the original ...

Click here to read more arrow

TIRF Microscopy for Counting Molecules

09 Mar 2018

4 (1,567 )

Robert Konstandelos How TIRF microscopy has enhanced the way single molecules are counted in the bacterial flagellar motor Abstract: The counting of individual molecules is important in order to establish how many molecules there are in a particular system. TIRF microscopy is one method to count molecules. The bacterial flagellar motor is a complex system in which motility protein B molecules can be counted ...

Click here to read more arrow

Ultra High Temperature Ceramics for Thermal Protection

09 Mar 2018

9 (3,573 )

Recent Developments in Oxidation Resistance and Fracture Toughness of Ultra High Temperature Ceramics for Thermal Protection Systems Katrin Abrahams (Dated: February 3, 2015) For safer and faster space vehicles a reduction of the tipradius of the leading edges is inevitable. This leads to temperatures exceeding 2200 °C which the used material has to withstand. ZrB2/SiC and HfB2/SiC have suitable properties, but the oxidation resistance ...

Click here to read more arrow

The Ranque-Hilsch Vortex Tube

09 Mar 2018

9 (3,289 )

David Newson Abstract The Ranque-Hilsch vortex tube is a simple mechanical device often used for refrigeration in industrial manufacturing as it requires only a supply of compressed gas. Despite having no moving parts the vortex tube is able to separate the compressed gas into two separate streams – one hot and one cold - with temperatures observed in the range of -5 to 55. ...

Click here to read more arrow

Galileo Orbiter/probe Mission to the Jupiter System

09 Mar 2018

4 (1,587 )

It was 1610 when Galileo Galilei observed four satellites orbiting Jupiter [1]. This radical discovery challenged the early consensus that all celestial objects orbit the earth and changed our understanding of our solar system forever [1]. Since then, many intriguing findings contributed to the motivation for the Galileo mission, including the massive size and energy demonstrated by Jupiter [1]. Its huge gravity significantly affects its satellites ...

Click here to read more arrow

Spring Oscillation to Find the Spring Constant

09 Mar 2018

6 (2,242 )

Title: Using a spring oscillation to find the spring constant. The aim of my report is to find the K (spring constant) by measuring the time of 10 complete oscillations with the range of mass of 0.05kg up to 0.3kg. It was been demonstrated by the lecturer and also the following instruction that I’ve been given. This experiment will show and prove that with this method, ...

Click here to read more arrow

Dangers With Living in Close Proximity to Power Lines

09 Mar 2018

7 (2,503 )

Research Task: ASSESSMENT OF DANGERS ASSOCIATED WITH LIVING IN CLOSE PROXIMITY TO POWER LINES GAËLLE ROBERTSON   Introduction There have been several deliberations about the biological effects of exposure to electric and magnetic fields (EMF) and their possible detrimental effects on the health of humans and animals over the years. Illnesses attributed to power lines include abnormal heart pulses, leukaemia, cancers, miscarriages, birth defects, ...

Click here to read more arrow

Light Trapping Properties of Solar Cells

09 Mar 2018

5 (1,977 )

Abstract In this paper, we have investigated the light trapping properties of solar cells based on one-dimensional photonic crystal (1DPC) by using finite difference time domain (FDTD) method. Light trapping is essential for thin film solar cells due to the limited absorption in long wavelength range. Here, we used different types of solar cell structures and to explore their photonic ray theories (electric field propagation) and ...

Click here to read more arrow

Time Travel through HOLE Teleportation

09 Mar 2018

5 (1,711 )

Kishan Majethia   Abstract- Time travel as its name suggest is movement of an object over time constraining its motion over space. By constraining the motion of an object in space it can be forced to move the object in time. Thus time travel is nothing but movement of an object from one location to another (over time) without interfering through intermediate medium. ...

Click here to read more arrow

Fusion Power for Sustainable Development

09 Mar 2018

7 (2,704 )

Introduction Sustainable energy is about using energy wisely and using energy generated from clean sources and clean technologies. This approach is first step to ensuring we have sustainable energy and technologies for present and future generations. Being efficient with our energy will reduce our household and business energy bills, reduce the amount of energy we need to produce in the first place and cut energy related ...

Click here to read more arrow

Comparison of Specific Heat Capacity of Different Metals

09 Mar 2018

9 (3,576 )

Samerah Mansha   Aim The aim of this investigation was to measure the specific heat capacity (SHC) of various different metals such as aluminum, iron and brass of different volumes to find out if they all have the same SHC or different. Additionally, insulation was used to measure how efficient insulation was against heat loss. Hypothesis Previous research in background information states that there should be ...

Click here to read more arrow

Investigation in Acoustics of Wine Glasses

09 Mar 2018

14 (5,450 )

Authored by Nikhil Dhanjee Collaborated by Joshua Lee and Drew Nuttall-Smith Introduction Resonance is extremely important in engineering and structural design. It directly relates to the way buildings, bridges and other structures sway with disturbance. In the case of wine glasses used in the Glass Harmonica invented in 1761 by Benjamin Franklin, varying the ...

Click here to read more arrow

Interaction of Electromagnetic Radiation: Quantum Structures

09 Mar 2018

7 (2,689 )

Preparation and Characterisation of Quantum Dot Infrared Photo Detector and Its Application in Night Vision Devices Submitted by Mangala Gowri M   Focus of the study during this period was to understand interaction of electromagnetic radiation with quantum structures. Interband transition and intraband transition are two types of transition possible in semiconductors. Intraband transitions are unique for the quantum semiconductor structures. Intraband transitions between the quantized ...

Click here to read more arrow

Semi Empirical Formula For Neutrinoless Double Beta Decay

09 Mar 2018

16 (6,353 )

Abstract A Semi empirical formula for both phase space factor and Nuclear Matrix Element (NME) is developed for neutrinoless double beta decay, and the formula is used to compute the neutrinoless double beta decay half lives. The computed half lives for neutrinoless double beta decay are compared with the corresponding experimental values and with those predicted by QRPA model. The semi empirical formula predictions are found ...

Click here to read more arrow

Effect of Bone Marrow Composition Changes With Age

09 Mar 2018

4 (1,326 )

PROJECT TOPIC: INVESTIGATION INTO THE EFFECT OF BONE MARROW COMPOSITION CHANGES WITH AGE BETWEEN THE TWO GENDERS ON FINE STRUCTURE ANALYSIS (FINESA) TECHNIQUE A short 100 word lay-person summary– The project is about the investigation into the bone marrow composition changes with age between the two genders and its effect on the structure MRI technique fineSA. It utilizes MR to excite the rectangular prism shape volume ...

Click here to read more arrow

Preparation and Application of Nanomaterials

09 Mar 2018

5 (1,952 )

2 -1 Introduction During the last ten years, nanoscience and nanotechnology have advanced rapidly in many aspects such as preparation and application of nanomaterials. A broad range of nanomaterials has been developed for varieties of applications ranging from microelectronics circuits, food science, medicines to aerospace exploration. Laser ablation in liquid Nanostructures such as particles, wires, and tubes have become the focus of intensive research owing ...

Click here to read more arrow

Properties of Cytosinium Hydrogen Selenite

09 Mar 2018

8 (3,136 )

Growth, Optical, Thermal and Mechanical Properties of Cytosinium hydrogen selenite: A Novel Nonlinear Optical Single Crystal P. Jaikumar, S. Sathiskumar, T. Balakrishnan and K. Ramamurthi   Abstract A novel nonlinear optical single crystal of cytosinium hydrogen selenite was successfully grown from aqueous solution by slow evaporation method at room temperature. The unit cell parameters of the grown crystal were estimated by single crystal X- ray ...

Click here to read more arrow

Graphene: Development and Applications

09 Mar 2018

3 (1,162 )

Number of carbon atoms packed in a two-dimensional (2D) grid cells as flat single layer give the graphene. This is a key building block for graphitic materials of all sizes. It can be enclosed in fullerenes (0D), rolled into 1D nanotubes or stacked into three dimensional graphite. A serious step forward in the study of graphene was when Andre Geim and Kostya Novoselov from Manchester extracted ...

Click here to read more arrow

Quantum Optical Model Nonintegrability & Quantum Fluctuation

09 Mar 2018

5 (1,921 )

Nonintegrability and quantum fluctuations in a quantum optical model Nilakantha Mehera and S. Sivakumarb   Abstract Integrability in quantum theory has been defined in more than one ways. Recently, Braak suggested that a quantum system is integrable relating the number of parameters required to specify the eigenstates and the number degrees of freedom (both discrete and continuous). It is argued that the dependence of ...

Click here to read more arrow
Get in Touch With us

Get in touch with our dedicated team to discuss about your requirements in detail. We are here to help you our best in any way. If you are unsure about what you exactly need, please complete the short enquiry form below and we will get back to you with quote as soon as possible.