Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Simulator sickness when performing gaze shifts within a wide field of view optic flow environment: preliminary evidence for using virtual reality in vestibular rehabilitation
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài:Simulator sickness when performing gaze shifts within a wide field of view optic flow environment: preliminary evidence for using virtual reality in vestibular rehabilitation
For over four decades there has been continuous progress in adaptive optics technology, theory, and systems development. Recently there also has been an explosion of applications of adaptive optics throughout the fields of communications and medicine in addition to its original uses in astronomy and beam propagation. This volume is a compilation of research and tutorials from a variety of international authors with expertise in theory, engineering, and technology.
With advantages such as high strength, high stiffness, high chemical resistance, light weight…composite tubes are widely applied in urban construction and petroleum industry. In this report, the authors used the displacement method to study the mechanical behavior (stress, strain…) of an infinite hollow cylinder made of composite material under unsteady, axisymmetric plane temperature field. In the numerical calculations, we mainly studied the influence of time and volume ratio of the particle on the displacement and thermoelastic stress of a cylinder made of Titanium /PVC composite.
The nation’s six synchrotron light sources, five neutron sources, and highfield
magnet laboratory are uniquely valuable resources that contribute to the
development of new products and processes, create jobs, enhance the skill level
of the U.S. scientific community, and increase U.S. competitiveness. Because of
the high cost of building and operating these facilities,1 only a limited number
can be funded and they must be made widely available.
Discriminative feature-based methods are widely used in natural language processing, but sentence parsing is still dominated by generative methods. While prior feature-based dynamic programming parsers have restricted training and evaluation to artiﬁcially short sentences, we present the ﬁrst general, featurerich discriminative parser, based on a conditional random ﬁeld model, which has been successfully scaled to the full WSJ parsing data.
The combination of these components providQs sufficiQnt generality, conveniQnga, and efficiency to implement a broad range of linguistic models; in addition to a wide spectrum of transformational grammars, Gilder-type phrase structure grammar [ 6 ] and l e x i g a l functional grammar .
Saad Ibrahim has over 30 years of diversified experience in the Petroleum Industry in Western Canada and internationally, including projects in Libya, Yemen, Kazakstan, Venezuela and Argentina, with special expertise in reservoir engineering with emphasis on field development planning, evaluation of depletion strategies and production optimization of a wide spectrum of oil and gas fields.
Digital Systems Design and Prototyping: Using Field Programmable Logic and Hardware Description Languages, Second Edition covers the subject of digital systems design using two important technologies: Field Programmable Logic Devices (FPLDs) and Hardware Description Languages (HDLs). These two technologies are combined to aid in the design, prototyping, and implementation of a whole range of digital systems from very simple ones replacing traditional glue logic to very complex ones customized as the applications require.
In a ﬁeld-eﬀect transistor (FET), the width of a conducting channel in a semiconductor and, therefore, its current-carrying capability, is varied by the application of an electric ﬁeld (thus, the name ﬁeld-eﬀect transistor). As such, a FET is a “voltage-controlled” device. The most widely used FETs are Metal-Oxide-Semiconductor FETs (or MOSFET). MOSFET can be manufactured as enhancement-type or depletion-type MOSFETs. Another type of FET is the Junction Field-Eﬀect Transistors (JFET) which is not based on metal-oxide fabrication technique.
Quality control is a standard which certainly has become a style of living. With the improvement of technology every day, we meet new and complicated devices and methods in different fields. Quality control explains the directed use of testing to measure the achievement of a specific standard. It is the process, procedures and authority used to accept or reject all components, drug product containers, closures, in-process materials, packaging material, labeling and drug products, and the authority to review production records to assure that no errors have occurred....
Carbon nanotubes are one of the most intriguing new materials with extraordinary properties being discovered in the last decade. The unique structure of carbon nanotubes provides nanotubes with extraordinary mechanical and electrical properties. The outstanding properties that these materials possess have opened new interesting researches areas in nanoscience and nanotechnology. Although nanotubes are very promising in a wide variety of fields, application of individual nanotubes for large scale production has been limited....
Diesel engines, also known as CI engines, possess a wide field of applications as energy converters because of their higher efficiency. However, diesel engines are a major source of NOX and particulate matter (PM) emissions. Because of its importance, five chapters in this book have been devoted to the formulation and control of these pollutants. The world is currently experiencing an oil crisis. Gaseous fuels like natural gas, pure hydrogen gas, biomass-based and coke-based syngas can be considered as alternative fuels for diesel engines.
This book, which presents- standing work from leading researchers HRI includes a wide spectrum of leading
ics, is an attempt to capture and present some of the important contributions of HRI a volume. I hope that this book will bring benefits to both experts and novices and professional Vide an insight into the exciting field of HRI.
The book embraces a wide spectrum of problems falling under the concepts of "Quantum optics" and "Laser experiments". These actively developing branches of physics are of great significance both for theoretical understanding of the quantum nature of optical phenomena and for practical applications.
The purpose of this book is to provide an up-to-date view of latest research advances in the design of efficient small-scale energy harvesters through contributions of internationally recognized researchers. The book covers the physics of the energy conversion, the elaboration of electroactive materials and their application to the conception of a complete microgenerator, and is organized according to the input energy source.
The mechanical removal of chips from the workpiece is called material removal. If the number of cutting edges and their macro-geometry and orientation are known, the operation is called a cutting process. These cutting processes play a major role in manufacturing because of their wide field of applications. Many different materials with a wide variety of shapes can be machined by cutting. Both roughing for high productivity and finishing to meet high precision demands can be achieved by cutting. ...
The industrial discharge carries various types of contaminants to the river, lake and
groundwater. The quality of freshwater is very important as it is highly consumed by
human for drinking, bathing, irrigation and etc. The presence of contaminants from
industrial contaminant within the water may reduce the yield of crops and the growth of
plant and it will harmful to the aquatic living organism too.
For new information to be valuable it must, of course, actually be new information. If
new cost estimation or accounting procedures simply confirm existing beliefs, they have little
likelihood of contributing to changes in decision-making, and thus little likelihood of adding
value. Environmental accounting techniques will be most valuable when they correct beliefs
that are biased or when they focus on issues subject to high degrees of uncertainty.
A focus in much of the environmental accounting literature is on the failure to quantify
environmental benefits and costs.
Rolling bearings are machine elements found in a wide field
of applications. They are reliable even under the toughest conditions
and premature failure is very rare.
The first sign of rolling bearing damage is primarily unusual
operating behaviour of the bearings. The examination of
damaged bearings reveals a wide and varied range of phenomena.
Inspection of the bearings alone is normally not enough to
pinpoint the cause of damage, but rather the inspection of the
mating parts, lubrication, and sealing as well as the operating
and environmental conditions.