OALib Journal期刊

ISSN: 2333-9721




2019 ( 12 )

2018 ( 116 )

2017 ( 120 )

2016 ( 112 )


匹配条件: “Guo” ,找到相关结果约31421条。
The Quasi-Static Approximation of Heat Waves in Anisotropic Thermo-Elastic Media  [PDF]
Shaohua Guo
Applied Mathematics (AM) , 2010, DOI: 10.4236/am.2010.15054
Abstract: The equilibrium equations of anisotropic media, coupled to the heat conduction equations, are studied here based on the standard spaces of the physical presentation, in which an new thermo-elastic model based on the second law of thermodynamics is induced. The uncoupled heat wave equation for anisotropic media is deduced. The results show that the equation of heat wave is of the properties of dissipative waves. In final part of this paper, we discuss the propagation behaviour of heat waves for transversely isotropic media.
A Second-Order Eigen Theory for Static Electromagnetic Fields  [PDF]
Shaohua Guo
Journal of Modern Physics (JMP) , 2010, DOI: 10.4236/jmp.2010.12015
Abstract: The static electromagnetic fields are studied here based on the standard spaces of the physical presentation, and the modal equations of static electromagnetic fields for anisotropic media are deduced. By introducing a set of new potential functions of order 2, several novel theoretical results were obtained: The classical potential functions of order 1 can be expressed by the new potential functions of order 2, the electric or magnetic potentials are scalar for isotropic media, and vector for anisotropic media. The amplitude and direction of the vector potentials are related to the anisotropic subspaces. Based on these results, we discuss the laws of static electromagnetic fields for anisotropic media.
A Comparative Study on Consumer Right to Privacy in E-Commerce  [PDF]
Meirong Guo
Modern Economy (ME) , 2012, DOI: 10.4236/me.2012.34052
Abstract: The number of electronic commerce (e-commerce) transactions has grown extraordinarily with widespread Internet usage. The right to privacy is particularly important in e-commerce. Recently, the privacy protection for consumer transactions has become more and more important in e-commerce. This paper aims to develop the study on the legislation of e-commerce consumer rights protection. It is a comparative study on relevant regulations of the right to privacy in European Union, the United States, and Japan. The most representative policy might be the Data Protection Directive in the EU, which not only regulates the principle for e-commerce consumer right to privacy protection, but also lays out specific criteria to be abided. The current status and existing problems in China are also analyzed and some suggestions are made to improve the legal system of right to privacy. The paper identifies directions for the future development of the privacy protection from a legal perspective.
Japanese New Patent Law: Lessons for China  [PDF]
Meirong Guo
Beijing Law Review (BLR) , 2012, DOI: 10.4236/blr.2012.33018
Abstract: In this paper, I systematically analyze the new Japanese Patent Law and make a comparative study on Chinese and Japanese Patent Law to shed a new light on the improvement of the legal system of intellectual property in China. To begin with, I review the historical development of Japanese Patent Law and the modern patent legal system in Japan. Next, the aim and contents of the latest revision of Japanese Patent Law are described. I also pay close attention to the issues remaining unresolved. Regarding the problems faced by Chinese Patent Law, I identify the lessons that China could learn from Japanese New Patent Law. Finally, I suggest that there are still some unresolved issues in Chinese Patent Law even after learning from the new Japanese Patent Law.
A Quick Method for Judging the Feasibility of Security-Constrained Unit Commitment Problems within Lagrangian Relaxation Framework  [PDF]
Sangang Guo
Energy and Power Engineering (EPE) , 2012, DOI: 10.4236/epe.2012.46057
Abstract: Generally, the procedure for Solving Security constrained unit commitment (SCUC) problems within Lagrangian Relaxation framework is partitioned into two stages: one is to obtain feasible SCUC states; the other is to solve the economic dispatch of generation power among all the generating units. The core of the two stages is how to determine the feasibility of SCUC states. The existence of ramp rate constraints and security constraints increases the difficulty of obtaining an analytical necessary and sufficient condition for determining the quasi-feasibility of SCUC states at each scheduling time. However, a numerical necessary and sufficient numerical condition is proposed and proven rigorously based on Benders Decomposition Theorem. Testing numerical example shows the effectiveness and efficiency of the condition.
The Application of Ontology in Semantic Discovery for GeoData Web Service  [PDF]
Mingwu Guo
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.53B2121

GeoData Web service is an important way to achieve the integration and sharing of heterogeneous geospatial data at present. However, due to the complexity of GeoData and no sematic supporting Webservice discovery, it is very hard for data users to accurately find the GeoData WebService they really want. In order to make it easy for users to quickly and accurately find the GeoData Web Service they want in semantic level, this article firstly, constructs MetaData Ontololy, and uses MetaData Ontology to describe the related semantic information for GeoData Web Service. Then it comes up with a new way of computing the degree of semantic similarity among concepts based on Ontology. Finally, it realizes the automatic discovery for GeoData Web Service based on semantic matching. The experiment result shows that the way in this article can dramatically improve the accuracy and intelligence of GeoData Web Service discovery.

Primes in Arithmetic Progressions to Moduli with a Large Power Factor  [PDF]
Ruting Guo
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.37A003

Recently Elliott studied the distribution of primes in arithmetic progressions whose moduli can be divisible by highpowers of a given integer and showed that for integer a≥2 and real number A>0. There is a B=B(A)>0 such that


holds uniformly for moduli \"\" that are powers of a. In this paper we are able to improve his result.

Frequency Measurement of Transient Oscillatory on LABVIEW  [PDF]
Haichao Guo
Journal of Power and Energy Engineering (JPEE) , 2014, DOI: 10.4236/jpee.2014.24090
Abstract: Due to the sensitivity of the frequency measurement of power system transient oscillatory signal with respect to noise signal, a new measurement method based on Wavelet Transform and Windowed Fourier Transform is proposed. An analysis using LabVIEW on oscillatory signal containing various noise components is carried on and it is shown that the proposed method can detect the oscillatory frequency more accurately and quickly.
Finite Type Transcendental Entire Functions Whose Buried Points Set Contains Unbounded Positive Real Interval  [PDF]
Feng Guo
Advances in Pure Mathematics (APM) , 2014, DOI: 10.4236/apm.2014.45027

Let fμ(z)=z·ep(z)+μ with p(z)

The Optimal Hedging Ratio for Contingent Claims Based on Different Risk Aversions  [PDF]
Jianhua Guo
Open Journal of Business and Management (OJBM) , 2019, DOI: 10.4236/ojbm.2019.72030
Abstract: Based on utility theory, this paper firstly combined different utility functions with risk aversion coefficient and constructed different kinds of optimizing problems for hedgers to hedge for stochastic-payment-typed contingent claim, and then, by the aid of dynamic programming theory, effective multi-stage hedging strategy is proposed for different risk-averse hedgers. Lastly, the research results that the optimal hedging ratios for three kinds of utility functions are equivalent and do not relate to the risk aversion coefficient.


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