Method for a Solution to Some Class of Quasi-Static Problems in Linear Viscoelasticity Theory, as Applied to Problems of Linear Torsion of a Prismatic Solid
Latif Kh. Talybly, Mehriban A. Mamedova
Abstract: Two theorems that reduce solutions of the general quasi-static problem of linear viscoelasticity theory to a solution of the corresponding problem of elasticity theory are proved. These theorems hold if one of the following conditions is satisfied: 1) the material is close to a mechanically uncompressible material; 2) the mean stress is zero; 3) the shift and volume hereditary functions are equal. The theorems provide free direct and inverse transforms between solutions of viscoelasticity and elasticity problems, which makes them convenient in applications. They have been applied to solutions of problems on the pure torsion of a prismatic viscoelastic solid with an arbitrary simply connected cross section. Some examples describing the obtained results have been considered.
Keywords: viscoelasticity, quasi-static problems, exact solutions, torsion problems.
Pages: 343 – 356 | Full PDF Paper
Kong Hoong Lem
Abstract: The complexity of the deformation equation increases exponentially with the order of approximation. Consequently, implementing the Laplace homotopy analysis method (LHAM) under high deformation order can be very computationally costly and lengthy and even cause computational paralysis in cases. Here, the LHAM is modified in a reinitiated manner where the low order results are initiated for further approximation using truncated Maclaurin expansions. This modified approach manages to avoid high order approximation but still promises accurate approximate series solution. This approach greatly improves the efficiency of LHAM in solving integral equations.
Keywords: Laplace transform, homotopy analysis method (HAM), integral equations.
Pages: 357 – 366 | Full PDF Paper
Mohamed Ismail and Nany Abd El-kader
Abstract: The economic census is a national project for many countries of the world because of its importance in constructing comprehensive frameworks for all enterprises and economic activities, databases for different economic activities and estimation the national accounts at the country level. The growing role of unregulated economic activities whose data is unavailable in the business records stresses the necessity of economic census. This study comes as a part of preparatory work conducted by the Central Agency for Public Mobilization and Statistics (CAPMAS) for the fourth Egyptian economic Census to be held in 2013. In addition, the study reflects the CAPMAS’ interest in applying scientific methodologies and benefitting from international experiences in implementing the next stages of the EC. The study describes the basic features of the economic census including; the concept of the census, objectives, periodicity and coverage and methodology. The study also reviews results of the United Nations survey about the features of the economic censuses in different countries of the world in 2006. Finally, the study sheds light on Egyptian pilot survey and economic census 2013.
Keywords: CAPMAS, Egyptian economic census 2013, Pilot survey, UN survey (2006).
Pages: 367 – 375 | Full PDF Paper
A Study on the Emission of Pollutants by Vehicles Produced by Different Companies: A Case Study in Dhaka Metropolitan City
Md. Abu Sayem
Abstract: Air pollution is the introduction into the atmosphere of chemicals, particulates, or biological materials that cause discomfort, disease, or death to humans, damage other living organisms such as food crops, or damage the natural environment or environment. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone due to air pollution has long been recognized as a threat to human health as well as to the Earth’s ecosystems. A substance in the air that can be adverse to humans and the environment is known as an air pollutant. In our study, we consider the characteristics such as year of manufacturing, types of makers, types of model, vehicle’s weight, odometer readings and different pollutants (i.e., CO, CO2, HC, AFR & Lambda) produced by different vehicle’s. From the analysis it is observed that CO and CO2 is the most influencing environmental components.
Keywords: Atmosphere, Environment, Planet Earth, Earth’s ecosystems, Air pollution, AFR, Lambda, Odometer Readings.
Pages: 376 – 399 | Full PDF Paper
Abstract: The purpose of this research is to innovate TQM to be a real business management and enlarge its advantages. Why could TQM make Japan as No.1? TQM had a lot of advantages. We can find the real advantages of TQM by comparing it with traditional management models. We find the first advantage of TQM is “TQM can satisfy both internal value and external value.” The second advantage of TQM is “TQM manages not only results but also processes and origins.” The third advantage of TQM is “TQM manages not only entity value but also virtual value.” TQM had those advantages. But its central system was always around quality and those advantages could not be employed all over the business. How can we research the real central system of business management? Japanese analogized QC to company-wide including total function, total process, and total department. They created dispersed and passive inspiration in many dimensions, The methodology adopted is to lean the QC-analogized functions, processes, and departments in order to find their respective true meanings. In the practice of leaning, departments become internal entity value, functions become external virtual value, and processes become timing value. The result is that lean TQM becomes TVM (total value management). The advantages of TVM over TQM are: (1) satisfying business purposes, (2) merging other management models, such as IE, and VA/VE, (3) going from Red Ocean Strategy to Blue Ocean Strategy, and (4) elevating from building paths to overseeing the full view. If you practice TVM, you should win in many domains. Just winning by 1%, you should be No.1.
Keywords: Lean TQM, TVM, entity value, virtual value, timing value.
Pages: 400 – 411 | Full PDF Paper
Abstract: When considering various interconnected internal and external factors as well as the volatility of macroeconomic variables from China, Europe, the United States, and other economies, obvious synergies appear through the transmission channels of international trade, international investment, and international finance, promoting policies of transnational relevance. China’s economic interaction with the world economy has been significantly strengthened through a system of two-way feedback. In the context of economic globalization and economic interdependence, how can Chinese policies be better coordinated with those of other countries, and how can China fully embrace the role of bilateral and multilateral power? What is the interaction mechanism and transmission of the Chinese business cycle in relation to the global business cycle, and what are the resulting policy implications? This paper investigates the evolution and nature of macroeconomic interdependence between China and other major players in the world economy in order to analyze China’s global economic role and aims to answer these questions theoretically and empirically.
Keywords: “One Belt And One Road”(OBAOR), economic transformation, business cycle transmission, China’s role, policy implications.
Pages: 412 – 425 | Full PDF Paper