OALib Journal期刊

ISSN: 2333-9721




2017 ( 175 )

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2015 ( 2395 )

2014 ( 3654 )


匹配条件: “YANG Hai-tao” ,找到相关结果约76929条。
Constructivism and Evolutionism: The Tactic of Government’s Behavior in the Institutional Transition
Hai-tao YANG,Jie FANG
Canadian Social Science , 2008,
Abstract: The process of institutional transition was deeply influenced by the government’s behavior, which is the fundamental element in institutional transition analysis. The origin of government’s different behavior comes from philosophy and two conventions in economics. The rationalism leads to constructivism and the empiricism leads to evolutionism, these conventions in economics cause different government’s behavior in the institutional transition. After analyzing these differences, we make a conclusion that the government should pay attention to special initial conditions and compromise two conventions in economics, and then select appropriate tactic for the regional economic development. Key words: Constructivism, Evolutionism, Institutional transition, Government’s behavior Résumé: Le processus de transition institutionnelle a été profondément influencée par le comportement du gouvernement, qui est un élément fondamental dans l’analyse de la transition institutionnelle. L’origine des comportements différents du gouvernement réside dans la philosophie et deux conventions économiques. Le rationalisme conduit au constructivisme et l’empirisme à l’évolutionnisme. Ces conventions de l’économie entra nent les comportements gouvernementaux différents dans la transition institutionnelle. Après l’analyse de ces différences, on arrive à la conclusion que le gouvernement devrait prêter attention aux conditions spéciales initiales et faire un compromis pour les deux conventions économiques, et puis choisir la tactique appropriée du développement économique régional. Mots-Clés: constructivisme, évolutionnisme, transition institutionnelle, comportement gouvernemental
Porosity Calculation of Tight Sand Gas Reservoirs with GA-CM Hybrid Optimization Log Interpretation Method  [PDF]
Ya-Nan Duan, Bao-Zhi Pan, Xue Han, Hai-Tao Zhang, Xiao-Ming Yang
Journal of Geoscience and Environment Protection (GEP) , 2014, DOI: 10.4236/gep.2014.23013

Tight sand gas reservoirs are our country’s fairly rich unconventional natural gas resources, and their exploration and development is of prime importance. Sulige Gas Field which located in the northern Ordos Basin is tight sand gas reservoirs. It is typically featured by low porosity and low permeability, and the error of porosity calculation by traditional methods is larger. Multicomponent explanation model is built by analyzing the thin slice data, and the objective function is got according to the concept of optimization log interpretation method. This paper puts the Genetic Algorithm and the Complex Algorithm together to form the GA-CM Hybrid Algorithm for searching the optimal solution of the objective function, getting the porosity of tight sandstone gas reservoirs. The deviation got by this method is lesser compared with the core porosity, with a high reliability.

Oxidation of Trichloroethylene in Water with Permanganate

TIAN Lu,YANG Qi,SHANG Hai-tao,SHANG Hai-tao,

环境科学 , 2009,
Abstract: 以水中常见的氯代烃污染物三氯乙烯(TCE)为目标污染物,以自制的高锰酸钾溶液为氧化剂,探讨了不同条件下高锰酸钾对TCE的去除效果.结果表明,在30℃、高锰酸钾浓度为0.276 g.L-1的条件下,反应时间为30 min时,TCE的去除率就可达到100%.高锰酸钾对TCE的去除符合一级反应动力学方程,速率常数为0.142 9 min-1,半衰期t1/2为4.85 min.TCE的去除速率随高锰酸钾浓度的增大而增大并呈线性关系,随反应温度的升高而增大,受pH值和离子强度的影响较小.
Hai-Zhou Yang,Hai-Tao Gao,Xu-Hong Yang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536808040567
Abstract: In the title compound, C34H20Cl2N4O4, the two quinazoline heterocyclic systems and the adjacent chlorobenzene rings are not coplanar, but oriented at dihedral angles of 66.66 (13) and 52.48 (12)°, respectively. The quinazoline ring systems are nearly planar, with dihedral angles between the planes of the two rings of 5.43 (16) and 3.40 (14)°, and are oriented at dihedral angles of 79.73 (13) and 83.52 (13)° with respect to the adjacent benzene ring between them. Intermolecular C—H...O hydrogen bonds contribute to the stability of the structure. In addition, weak π–π stacking interactions [centroid-to-centroid distances = 3.872 (1) and 3.876 (1) ] are observed in the crystal structure.

YANG Yu-Pu,OU Hai-Tao,

自动化学报 , 2002,
Abstract: A combinative algorithm of reinforcement learning and genetic algorithm is proposed in this paper and is applied to self-organized control of the traffic signals. The reinforcement learning focuses on the optimization of intersection's traffic flow which modifies the split of traffic signal cycle, while the genetic algorithm intends to introduce a global optimization criterion to each of the local learning processes which modifies the cycle itself of traffic signals. This approach overcomes the drawbacks in existing control method such as huge data transfer and communication, accurate traffic model and so on.
Anti-spam system design based on improved DMTP undercloud computing platform

LIU Hai-tao,YANG Jie,
,阳 洁

计算机应用研究 , 2012,
Abstract: This paper proposed an improved DMTP differentiated mail transfer protocol according to the problem that the SMTA intangible categorized in DMTP, and combined this improved DMTP with cloud computing. Then it designed an overall architecture of anti-spam system and described the work flow of mail delivery in the system in detail. By differentiating sender's category and integrating results from the cloud, the proposed system can effectively restrain the spam spread. Finally, it referenced an Eucalyptus-based anti-spam system.
Bis{6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(iminomethylene)]diphenolato(1.5 )-κ4O,N,N′,O′}erbium(III)
Hai-Tao Xia,De-Fu Rong,Ying-Ying Zhang,Shu-Ping Yang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809001421
Abstract: In the title compound, [Er(C18H22.5N2O4)2], the Er atom is located on a twofold rotation axis and is eight-coordinated by four O atoms and four N atoms from two symmetry-related 6,6′-dimethoxy-2,2′-(ethane-1,2-diyldiiminodimethylene)diphenolate(1.5 ) ligands. Due to disorder of one phenolate H atom with half-occupation, the overall charge of one tetradentate ligand is 1.5. The ligand molecules are stabilised by intramolecular N—H...O and O—H...O hydrogen bonds and are linked into a chain parallel to the a axis by a C—H...O hydrogen bond. Neighbouring chains are connected by van der Waals forces, resulting in a three-dimensional network.
Bis{6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(iminomethylene)]diphenolato(1.5 )-κ4O,N,N′,O′}praeseodymium(III)
Hai-Tao Xia,Yu-Fen Liu,Shu-Ping Yang,Da-Qi Wang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809001500
Abstract: The title compound, [Pr(C18H22.5N2O4)2], is isotypic with its Er and Tb analogues. All interatomic distances, angles and the hydrogen bond geometry are very similar for the three structures..
Ethyl 2-diethylamino-4-oxo-3,5-diphenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidine-7-carboxylate
Hai-Tao Gao,Li Li,Fang Ye,Yang-Gen Hu
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536811052883
Abstract: In the title compound, C25H26N4O3, the two fused pyrrolo[3,2-d]pyrimidine rings form a dihedral angle of 3.7 (2)°. The two substituent phenyl rings are twisted with respect to the pyrrole and pyrimidine rings, making dihedral angles of 57.2 (2) and 69.0 (2)°, respectively. The ethyl and ethoxy groups are disordered over two positions; the site occupancies are 0.53 (1) and 0.47 (1) for ethyl, and 0.63 (1) and 0.37 (1) for ethoxy. The crystal packing features C—H...O hydrogen bonds.
Bis{6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(iminomethylene)]diphenolato(1.5 )-κ4O,N,N′,O′}terbium(III)
Hai-Tao Xia,Yu-Fen Liu,Shu-Ping Yang,Da-Qi Wang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809001494
Abstract: The title compound, [Tb(C18H22.5N2O4)2], is isotypic with its Pr and Tb analogues. All interatomic distances, angles and the hydrogen bond geometry are very similar for the three structures.

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