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Search Results: 1 - 10 of 32644 matches for " Huang Shihong "
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Foreign Exchange Reserves Demand Model Based on Chinese Government Utility Maximization and Analysis of Chinese Foreign Exchange Reserves  [PDF]
Shihong Zeng
Modern Economy (ME) , 2011, DOI: 10.4236/me.2011.23039
Abstract: At the end of 2010 China’s foreign exchange reserve reached $2847.34 billion, the author designs the maximum government utility function when consider the China government buys a part foreign exchange if company earns, it means that the China government will increase Ren-Min-Bi Yuan. And it will cause inflation. The inflation will cause disutility to government. Finally it gets the optimal fuction. VAR Regress finds the fitted value and actual value of foreign exchange reserves is nearly equal within 99.8%. The thesis gets the long term equilibrium relation of the nature logarithm of variables by VEC model, which are foreign exchange reserves, standard error of export, marginal propensity to import, the opportunity cost for foreign exchange reserves, marginal output to export. Using the sample datas in China 1980-2006 and VEC, we can find that (1) the government-holding foreign exchange reserves has positive correlation with the export standard error, (2) the government-holding foreign exchange reserves has positive correlation with the marginal propensity to import. The data and regression method are all different, but all have the positive correlation between the foreign exchange reserves and export standard error.
Bank Non-Performing Loans (NPLS): A Dynamic Model and Analysis in China  [PDF]
Shihong Zeng
Modern Economy (ME) , 2012, DOI: 10.4236/me.2012.31014
Abstract: In this paper we report on a utility function (loss function) and model that we designed by using optimal control theory based on previous studies. we found that: (1) the Hamiltonian multiplier of the bank NPLs growth rate in the model was obtained using the negative derivitive of the utility (defined as loan function minus non-performing loan function) with respect to the NPLs multiplied by a factor which expresses the rate of change in NPLs over time with respect to the NPLs, the formula is λN=(1/δ)(-vmNm-1)=(1/δ)U'; (2) the model determines the equilibrium value of the saddle point of the bank NPLs; (3) the model can explain the NPLS phenomenon in the Chinese banking system as mainly significant in the state owned banks (SOBS); (4) The paper supports the following hypothesis by considering the situation in China: the equilibrium value of the bank NPLs is dependent on micro-economic factors but influenced by macro-economic factors.
Benefits and Drawbacks of China’s Top-Down Innovation Campaign in Tertiary Science Education  [PDF]
Shihong Xu
Creative Education (CE) , 2017, DOI: 10.4236/ce.2017.81005
Abstract:
This paper presents an analysis on China’s innovative education reform in the tertiary science education from the background of a top-down innovative campaign to its purposes, reasons, effects and challenges. Under the heading of innovation and entrepreneurship education, changes happen in perspectives of educational ideology and practice, involving a wide range of policy backups, learning modes, curriculum reconstruction, teaching ability building, and entrepreneurship supervision improvement, etc. Conclusions show that the top-down innovation campaign is changing the old fabric of knowledge and skill based teaching and learning mode into a practice and innovation based teaching and learning reform. Students and teachers can enjoy a group of stimulant policies, from workload accounting of academic advisors to awarded credits for traditional courses, from scholarship recommendation and quality evaluation to postgraduate selection, from exempting learning and assessment to IE credit replacement, together with the overall arrangement of talent training. However, challenges come from curriculum reconstruction, interdisciplinary cooperation, teaching contents and pedagogy, which reflects the drawbacks of a top-down model of innovation.
On mechanisms of nucleation of ice crystals by aerodynamic cooling
On Mechanisms of Nucleation of Ice Crystals by Aerodynamic Cooling

Huang Shihong,Qian Changguo,Wang Weimin,Li Ruxiang,
Huang Shihong
,Qian Changguo,Wang Weimin,Li Ruxiang

大气科学进展 , 1994,
Abstract: The investigation of mechanisms of nucleation of ice crystals by aerodynamic cooling produced by supersonic airflow is carried out. Three processes are considered to be the principal causes for aerodynamic cooling and nucleation of ice crystals. They are: adiabatic cooling in supersonic airflow, cooling at the cores of vortices around the edge of airflow and entrapment of ambient stationary air into supersonic airflow. It is thermodynamically confirmed that the temperature lowering in supersonic flow depends on the Mach number M there and stagnant pressure Po at a certain stagnant temperature To. The temperature will decrease by more than 6oC as M increases by 0.1. The influence of Po on cooling is shown through the variation of mass flow rates, which increase with Po.Experiments in laboratory have shown that ice-forming rate produced by supersonic airflow increases from 1011 to 1012 /g as M increases from 1.10 to 1.84 at Po= 5 and 6 atm, and increases from 4.3 × 1011 to 10.3 × 1012 /g as the mass flow rate increases from 3.5 to 5.7 g / s and increases from 1.5 to 5.0 atm at M = 1.80 and To= 25oC. In field experiments the ice concentrations of 50 to 200 per liter in about 2000 m3 were measured when air of about 0.5 g were spurted at a Mach number of M = 1.8 into supercooled fog with temperatures between -0.5oC and -4.6oC. These results are compatible with the prediction of aerodynamics.The snapshot taken in experiments represents the detailed structures of vortex motion around a supersonic airflow.
Real Options Literature Review  [PDF]
Shihong Zeng, Shuai Zhang
iBusiness (IB) , 2011, DOI: 10.4236/ib.2011.31007
Abstract: After 30 years of discussion and research, the academic community has established a complete theoretical system of real options and provided an excellent framework for the use of real options theory in the investment appraisal of high-tech projects. An option is an entitlement without any obligation and it has been used to describe a variety of management decisions in business investment. The description of management is effective and proper. Due to the introduction of real options theory, there has been a major breakthrough in the investment area. Project evaluation is the core content of bank credit risk assessment and business evaluation. The core content never changes from the investment evaluation framework to the credit risk evaluation framework. The project evaluation meets various needs of subject s in different ways. In this paper, the importance of real options is analyzed and the literature is reviewed
Literature Review of Carbon Finance and Low Carbon Economy for Constructing Low Carbon Society in China  [PDF]
Shihong Zeng, Shuai Zhang
Low Carbon Economy (LCE) , 2011, DOI: 10.4236/lce.2011.21003
Abstract: The purpose of the research is that China develops low-carbon economy and strengthens low-carbon economy research by learning other countries experiences, which literatures in the papers introduced. The principal results of the paper is that the paper done up right literatures review of carbon finance and low carbon economy. The major contribution is that the paper finds that China is facing the challenges of the global carbon finance problem and the lack of its pricing power. The conclusions is that we need to increase our academic research on carbon finance to solve China’s lagging in carbon finance construction and know how to construct development system.
Study on the Development of the Chip Information Industry Based on Moore’s Law  [PDF]
Guowang Zeng, Shihong Zeng
Journal of Computer and Communications (JCC) , 2017, DOI: 10.4236/jcc.2017.514004
Abstract: Chips are the carriers of ICs (integrated circuits). As a result of design, manufacturing, and packaging and testing processes, chips are typically wholly independent entities intended for immediate use. According to known data, one unit of chip output can drive up to ten units of output in the electronic information industry and 100 units of GDP (Gross Domestic Product). The Chip Information Industry is a strategic industry in most developed countries in Europe and North America. The development of the Chip Information Industry is related to national economies and personal livelihoods. Moore discovered a certain trend after analyzing data: in general, every newly produced chip has twice the capacity of the previous generation, and it takes 18 to 24 months for the next generation to be subsequently invented. This trend has come to be known as Moore’s Law. It applies not only to the development of memory chips but also to the evolutionary paths of processor capability and disk drive storage capacity. Moore’s Law has become the basis of performance prediction in several industries. However, since 2011, the size of silicon transistors has been approaching its physical limit at the atomic level. Due to the nature of silicon, additional breakthroughs in the running speed and performance of silicon transistors are severely limited. Elevated temperature and leakage are the two main sources that invalidate Moore’s Law. To counter these issues, This paper analyzes specific problems challenges in the Chip Information Industry, including the development of carbon nanotube chips and fierce competition in the international Chip Information Industry. In addition, this paper undertakes a critical analysis of the Chinese Chip Information Industry and countermeasures to Chinese Chip Information Industry development.
Ultra-narrow Linewidth Fiber Laser with Self-injection Feedback Based on Rayleigh Backscattering
Tao Zhu,Shihong Huang,Leilei Shi,Lei Gao,Wei Huang,Baomei Zhang
Physics , 2014,
Abstract: A single longitudinal mode fiber laser with ultra-narrow linewidth based on self-injection feedback by using the linewidth compress mechanism of Rayleigh backscattering (RBS) are proposed and demonstrated. Since the linewidth of RBS is narrower than that of the incident light in optical fibers and they have the same centre wavelength, the RBS can act as a mechanism to compress the linewidth of the incident light in fiber ring laser. In addition, more RBS signal could be collected to help further compress the laser linewidth besides the free spectral range is expanded when the self-injection feedback method is used. Our experimental results show that the side-mode suppression ratio of our laser is up to 75dB and the laser linewidth could be low to ~130Hz.
Influence of Urban Aerosols with Humidity Effect on Temperature during Daytime
考虑湿度影响的城市气溶胶粒子白天温度效应

Li Zihu,Yang Jun,Huang Shihong,
李子华
,杨军,黄世鸿

大气科学 , 2000,
Abstract: Based on detailed calculations of aerosol heating rates, the effects of relative humidity and aerosol concentration on temperature field in diurnal boundary layer are studied by use of an unsteady one-dimensional numerical model Results show that increases of relative humidity and aerosol loading have the same temperature effects in PBL with cooling near the surface and warming aloft, thereby increasing the boundary layer stability
Influence of Relative Humidity on Shortwave Radiative Properties of Atmospheric Aerosol Particles
相对湿度对大气气溶胶粒子短波辐射特性的影响

Yang Jun,Li Zihua,Huang Shihong,
杨军
,李子华,黄世鸿

大气科学 , 1999,
Abstract: Based on Mie scattering theory and ground-based measurements of aerosoIs inChongqing;; detailed calculations are performed to study the influence of relative humidity on shortwaveradiative properties of aerosol particles. Then the heating rate in PBL is determined by means oftwo-stream approximation and the adding method. Results show that the influences of relative humidi-ty changed from 65% to 95% on the aerosol shortwave radiative properties can be compared with theinfluences of multiple change of aerosol partictes total number.
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