vaser vibration amplification of sound energy at resonance
báo cáo hóa học: " Incidence of Raynaud''''s phenomenon in relation to hand-arm vibration exposure among male workers at an engineering plant a cohort study" doc
Ngày tải lên :
20/06/2014, 00:20
... exposure, where information was collected about the onset of hand-arm vibration exposure, exposure, duration of exposure per day and number of years of such exposure Hand-arm vibration dose was in ... saw vibration International archives of occupational and environmental health 1998, 71(7):493-498 ISO : Mechanical vibration - Measurement and evaluation of human exposure to hand-transmitted vibration ... investigator and data collector of the exposure measurements, participated and contributed substantial in the analysis and in the interpretation of data, RL discussed and con- Table 2: Hand-arm vibration...
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Báo cáo hóa học: " Solvability of boundary value problems with Riemann-Stieltjes Δ-integral conditions for second-order dynamic equations on time scales at resonance" pptx
Ngày tải lên :
20/06/2014, 22:20
... resonance Mathematicians have provided more theory of resonance from equations For the case where ordinary differential equation is at resonance, most studies have tended to the equation x″(t) ... Section 2) The effect of resonance in a mechanical equation is very important to scientists Nearly every mechanical equation will exhibit some resonance and can, with the application of even a very ... L, 0) = Thus, the conditions of Theorem 2.4 are satisfied, that is, the operator equation Lx = Nx admits at least one solution in Dom L ∩ Therefore, BVPs (1.1) has at least one solution in C [0,...
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Báo cáo hóa học: " Research Article Solvability for Two Classes of Higher-Order Multi-Point Boundary Value Problems at Resonance" doc
Ngày tải lên :
21/06/2014, 22:20
... Journal of Mathematical Analysis and Applications, vol 189, no 2, pp 575–584, 1995 B Liu and J Yu, “Solvability of multi-point boundary value problem at resonance III,” Applied Mathematics and ... value problem at resonance, ” Journal of Mathematical Analysis and Applications, vol 195, no 1, pp 148–159, 1995 11 S Lu and W Ge, “On the existence of m-point boundary value problem at resonance ... at least one solution in Cn−1 0, provided that n−1 i < 1/2 The proof of Theorem 2.4 is similar to the proof of Theorem 2.2, and we omit it Next we give two examples to demonstrate the applications...
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Báo cáo hóa học: " Research Article Unbounded Perturbations of Nonlinear Second-Order Difference Equations at Resonance Ruyun Ma" ppt
Ngày tải lên :
22/06/2014, 19:20
... Applications, vol 39, no 2, pp 207–215, 2000 [7] D Bai and Y Xu, “Nontrivial solutions of boundary value problems of second-order difference equations,” Journal of Mathematical Analysis and Applications, ... problems,” Journal of Mathematical Analysis and Applications, vol 308, no 1, pp 380–391, 2005 [5] R P Agarwal and D O’Regan, “Boundary value problems for discrete equations,” Applied Mathematics Letters, ... → R To prove that (1.6) has at least one solution, it suffices, according to the Leray-Schauder continuation method [3], to show that the possible solutions of the family of equations Δ2 u(t −...
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Sound and vibration analysis of compliant piezoelectric enabled structures
Ngày tải lên :
16/09/2015, 17:13
... investigated the bending vibration of ACLD-treated composite plates as well as the torsional vibration of a shaft A one-dimensional mathematical model for determining the mechanical responses of beams ... displacements of base plate at any section of the sandwich portion are related to those of constraining layer by making use of the governing equations of motion of a viscoelastically damped sandwich plate ... bi-layer plate 195 6.6.1 Excitations of the bi-layer plate 196 6.6.2 Pressure field radiated from the bi-layer plate 197 6.6.3 Application Examples 208 6.7 Remarks 209 Chapter Vibration response of an...
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THE AMPLIFICATION OF CONFINED SOUND (CONFINED ACOUSTIC PHONONS) BY ABSORPTION OF LASER RADIATION IN a CYLINDRICAL QUANTUM WIRE WITH AN INFINITE POTENTIAL
Ngày tải lên :
30/10/2015, 20:58
... tests of the Bessel function of the first kind, is the length of the quantum wire exp β(εF − εα − THE AMPLIFICATION OF CONFINED SOUND BY 123 The formula of the amplification of confined sound ... Using properties of Bessel function, fourier transformation, some approximation methods and realizing calculations, we obtain the coefficient of the amplification of confined sound (confined acoustic ... dependence of the rate of confined acoustic phonon on acoustic wave vector and on the frequency of laser 124 NGUYEN DINH NAM, NGUYEN QUANG BAU, NGUYEN VU NHAN radiation We see that the amplification of...
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Báo cáo y học: "Monte Carlo Commissioning of Low Energy Electron Radiotherapy Beams using NXEGS Software"
Ngày tải lên :
03/11/2012, 10:05
... generates with a given set of commissioning data are robust against variations in random number generator initialization To make this investigation tractable, we confine our attention to simulations ... minimum set of data for each electron beam energy and open applicator size The user supplies data specifying the geometry and composition of the applicator, absolute output factors in water at several ... generates particles at the sampling plane, located at the top surface of the applicator (The applicator itself is included in simulation during dose calculation in the phantom/patient.) Commissioning...
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Designing & evaluating an English reading test for the non-majors of Civil Engineering at Haiphong private university
Ngày tải lên :
07/11/2012, 14:12
... 5.Design of the study The study is composed of three parts: *Part I is the presentation of basic information such as the rationale, the scope of the study, the aims of the study, the methods of the ... Chapter two: Methodology 2.1.A quantitative study 2.2.The selection of participants 2.3.The materials 2.4.Methods of data collection and data analysis 2.5.Limitations of the research Summary Chapter ... use of authentic texts and real world tasks may be developed.’ (Mc Namara, 2000: 16) One of its distinguishing feature that supersedes other types of tests is that besides systemic features of...
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Designing an esp syllabus for the second-year students of library study at the national teachers training college
Ngày tải lên :
07/11/2012, 14:36
... Furthermore, students at University of Cultures are of higher level of English proficiency than that of the students at NTTC And the target students at NTTC are lower in comparison with that at universities ... get that kind of information it is essential to ask questions about the target situation and attitudes towards that situation of the participants in the learning process Hutchinson and Waters ... Halliday (1997: 4) states that the concept of cohesion is a semantic one, it refers to relations of meaning that exist within the text and that define it as a text It is clear that cohesion is expressed...
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An english-vietnamese cross-cultural study of keeping face at the first encounter
Ngày tải lên :
07/11/2012, 14:54
... encounter 25 Situation a To business partner of higher status in the office b To their business partner of equal status in the office C To their business partner of lower status in the office PPSs ... occupation? (He/she is at your age and the same gender) a He/She is of higher status: b He/She is of equal status: c He/She is of lower status: To a business partner who is of higher status, ... business partner of equal and lower status This means that a business partner of higher status is paid more attention and achieves more respect than a business partner of equal or lower status This...
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Incorporating english cultural elements into english training with the comparing - contrasting approach: A case of tourism students at haiphong community college part 3
Ngày tải lên :
07/11/2012, 15:06
... study will improve current situation of English culture learning of Tourism students at HCC 1.3 Scope of the study The focus of the study is on the corporation of English cultural elements into ... aspect that occasionally emerges as a topic of discussion is the relationship between knowledge of a foreign language and knowledge of the culture It is likely that the question of “culture” is often ... and that cultural patterns are interrelated and tended mutually to support need satisfaction * Goal = Exploration- The student can evaluate a generalization about the target culture in terms of...
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PHÂN TÍCH DAO ĐỘNG HỆ TRỤC CHÍNH TÀU THỦY BẰNG PHƯƠNG PHÁP PHẦN TỬ HỮU HẠN * VIBRATION ANALYSIS OF PROPULSION SYSTEM OF SHIP BY FINITE ELEMENT METHOD
Ngày tải lên :
09/04/2013, 12:58
... Mechanical Vibrations, Wiley, Massachusetts 1995 William T.Thomson: Theory of Vibration with Applications, Prentice Hall, 1982 M Géradin/D.Rixen: Mechanical Vibrations, Wiley, 1994 C.T.Sun, Y.P.LU: Vibration ... Wiley, 1994 C.T.Sun, Y.P.LU: Vibration Damping of Structural Elements, Prentice Hall Englewood Cliffs, NJ 07632, 1984 Kelley , S.G: Fundamentals of Mechanical Vibration, NJ, 2001 J S Carlton: Marine ... and Propulsion System, Bulterworth Heineman, 1998 Loyd's Register: "Rules and Regulations for The Classification of Ships", January 1995 Trần Cơng Nghị (chủ biên) - Ngơ Thị Kiều Nhi: Rung Động Tàu,...
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MAKING A CHART OF THE ENERGY CONSUMPTION IN H.C.M. CITY
Ngày tải lên :
22/07/2013, 01:27
... PLAN MAKING A CHART OF THE ENERGY CONSUMPTION IN H.C.M CITY INTRODUCTION OF GOAL • In new basic program of English 11.Unit 11 “sources of energy Part D writing: describing information from the chart ... neighbour to take the notes of the amount of energy they spent (water, electricity, ,oil,coal…) in a module of time or looking for from many different areas (survey, geothermatics, environment, factories) ... groups present their ways to and their charts in front of the class and share the best way to the web site of the resources file of City education service ACTIVITIES All Ss.in each group should...
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EVALUATION OF THE REAL SITUATION OF IMPORT ACTIVITIES OF VIETNAM ENERGY DEVELOPMENT SUPPORT JOINT STOCK COMPANY FROM 2009 TO 2011. PROBLEMS AND SOLUTIONS.
Ngày tải lên :
24/07/2013, 09:11
... April, 2012 NATIONAL ECONOMICS UNIVERSITY FACULTY OF FOREIGN LANGUAGES ENGLISH FOR BUSINESS DEPARTMENT VO THI KHANH CHI EVALUATION OF THE REAL SITUATION OF IMPORT ACTIVITIES OF VIETNAM ENERGY DEVELOPMENT ... situation of import activities of the company will be evaluated in detail in the next chapter 16 Võ Thị Khánh Chi – CQ503823 – Business English 50B CHAPTER III: EVALUATION OF THE REAL OPERATION OF ... effect is seemed to be necessary and practical That’s the reason why I chose “Evaluation of the real situation of import activities of Vietnam energy development support joint stock company from...
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SOME SOLUTIONS FOR THE DEVELOPMENT OF CONSUMER LENDING AT TECHCOMBANK HOANG QUOC VIET
Ngày tải lên :
25/07/2013, 11:20
... questions: What is consumer loans and its related features? What is the current situation of consumer loans at Techcombank Hoang Quoc Viet? And what are the reasons for existing limitations? Luu ... retail group Especially at this time, Vietnam is a destination of corporate banking, retail giant corporations • Element of law: The State has enacted legislation with the aim at developing a sustainable ... The orientation of the branch: expanding, strengthening and improving the operational efficiency of the office agency To attract more customers, the branch concentrates to the expansion of lending...
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Implications of building energy standard for sustainable energy efficient design in buildings
Ngày tải lên :
05/09/2013, 14:58
... country? What is the status of energy standards for building at national level in your country (mandatory, mixed/voluntary, proposed and none)? Furthermore, on implementation: What training/educational ... could be attributed to lack of building energy policy, government interest in energy conservation and inadequate information about the usefulness of building energy standards for building energy ... international donor agencies, but if this support does not cover the implementation period, prospects are rather negative Building energy standards are a set of procedures and regulations that prescribe...
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Sustainability of an energy conversion system in Canada involving large-scale integrated hydrogen production using solid fuels
Ngày tải lên :
05/09/2013, 14:58
... average for at lease five indicators: availability, adaptability, material rate, energy rate and location This observation is linked to the lack of maturity of the technologies related to these ... network of mining and distribution Energy rate: Rate at which energy can be supplied by the element or process [4,62,67,68] A value of denotes a high energy supply rate and a low energy supply rate ... dairy cattle or 970,000 poultry) are not financially feasible with electricity prices below CAD 0.14 per kWh or without off-farm inputs Incorporating off-farm organic material at a rate of 25% of...
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Investigation of thermal effect on exterior wall surface of building material at urban city area
Ngày tải lên :
05/09/2013, 15:28
... heat (total heat/solar radiation) of each material was calculated and analyzed (Figure 10) Figure 10 Normalized heat (total heat/solar radiation) using average heat of convection (qconv), heat ... average of solar radiation The total heat results showed that the amount of heat would increase the ambient temperature and ultimately contribute to UHI The highest normalized heat (total heat/Sr) of ... Measurement of albedo and analysis of its influence the surface temperature of building roof materials Energy Build 2005, 37, 295-300 [10] Wong N.H Chen Y Tropical Urban Heat Islands: Climate, buildings...
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