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Search Results: 1 - 10 of 34658 matches for " Ying Tang "
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The Neural Mechanisms of Utility and Ethic in the Management Moral Decision Making  [PDF]
Zhiwen Tang, Ying Lin
Journal of Behavioral and Brain Science (JBBS) , 2015, DOI: 10.4236/jbbs.2015.54016
Abstract: The study aimed at investigating the neural mechanism of business moral decision-making. 15 participants were presented with a set of 96 dilemmas in business situation. Participants were required to decide between option 1 (more utilitarian decision for self benefit) and 2 (ethical decision for fairness or institution). ERPs were recorded to a slide displaying the letter 1 and 2 when subjects were deciding between options. The selection rate was calculated after the experiment as the behavior data. The business moral dilemmas prompted more ethical option. A larger P260 component was elicited in the left frontal lobe area when participants were deciding to act ethically. On the other hand, decisions on utilitarian aroused weaker emotional experience, as supported by the shorter LPC and smaller P260 amplitude.
The Influence Factors Analysis to Improve the Compatibility and the Mechanical Behavior of IPN, Gradient IPN and BaTiO3 Filled IPN  [PDF]
Yudi Guo, Dongyan Tang, Ying Wang
Materials Sciences and Applications (MSA) , 2012, DOI: 10.4236/msa.2012.39087
Abstract: Interpenetrating polymer network (IPN), gradient IPN and BaTiO3 filled IPN, composed of poly(ethylene glycol urethane) (PEGPU) and unsaturated polyester resin (UP) curing at room temperatures were prepared. Then the effect of soft/hard segment ratio in polyurethane (PU), component ratio of PU to UP in IPN, adding amount of BaTiO3 in filled IPN, the component sequences and interval times between each IPN for gradient IPN, on morphology and mechanical behavior of IPN and BaTiO3/IPN nanocomposites with different molecular weight of PU were studied systematically. Moreover, the investigation on the relationship between the morphologies and the mechanical properties indicated that the IPN with finer morphology exhibited an excellent consistency of the higher strengths and elongations.
Effects of Panax notoginseng saponins on mRNA expressions of interleukin-1β, its correlative factors and cysteinyl-aspartate specific protease after cerebral ischemia-reperfusion in rats
Ying-hong TANG
Zhong Xi Yi Jie He Xue Bao , 2007,
Abstract: Objective: To investigate the effects of Panax notoginseng saponins (PNS) on mRNA expressions of interleukin-1β (IL-1β), interleukin-1 receptor type Ⅰ (IL-1RⅠ), interleukin-1 receptor antagonist (IL-1ra), intercellular adhesion molecule-1 (ICAM-1), cysteinyl-aspartate specific protease-1 (caspase-1), caspase-3 and caspase-8 after cerebral ischemia-reperfusion in rats.Methods: Focal cerebral ischemia reperfusion in rats was induced by the method of nylon monofilament via the internal carotid artery. PNS was administered intraperitoneally respectively five minutes before cerebral ischemia and twelve hours after cerebral ischemia. After cerebral ischemia for two hours followed by reperfusion for twenty two hours, the mRNA expressions of IL-1β, IL-1RⅠ, IL-1ra, ICAM-1, caspase-1, caspase-3 and caspase-8 in brain tissue were determined by reverse transcription polymerase chain reaction assay.Results: After cerebral ischemia for two hours followed by reperfusion for twenty two hours, the mRNA expression levels of IL-1β, IL-1RⅠ, IL- 1ra, ICAM-1, caspase-1, caspase-3 and caspase-8 in brain tissue in the untreated group were obviously elevated as compared to those in the sham-operation group (P<0.05 or P<0.01). The mRNA expression levels of IL-1β, IL-1RⅠ, IL-1ra in brain tissue in the PNS group were lower than those in the untreated group, but higher than those in the sham-operation group, and without statistical differences as compared to those in the sham-operation group and in the untreated group (P>0.05). The mRNA expression level of caspase-3 in brain tissue in the PNS group was significantly lower than that in the untreated group (P<0.05), but PNS had no effect on the mRNA expression levels of ICAM-1, caspase-1 and caspase-8 in brain tissue.Conclusion: PNS can inhibit the mRNA expression of caspase-3, slightly inhibit the mRNA expressions of IL-1β and its correlative inflammatory factors in brain tissue. The protective effects of PNS on cerebral injury induced by ischemia-reperfusion may be related to inhibiting the mRNA expressions of caspase-3, IL-1β and its correlative inflammatory factors in brain tissue.
Multi-dimensional BSDE with Oblique Reflection and Optimal Switching
Ying Hu,Shanjian Tang
Mathematics , 2007,
Abstract: In this paper, we study a multi-dimensional backward stochastic differential equation (BSDE) with oblique reflection, which is a BSDE reflected on the boundary of a special unbounded convex domain along an oblique direction, and which arises naturally in the study of optimal switching problem. The existence of the adapted solution is obtained by the penalization method, the monotone convergence, and the a priori estimations. The uniqueness is obtained by a verification method (the first component of any adapted solution is shown to be the vector value of a switching problem for BSDEs). As applications, we apply the above results to solve the optimal switching problem for stochastic differential equations of functional type, and we give also a probabilistic interpretation of the viscosity solution to a system of variational inequalities.
Switching Game of Backward Stochastic Differential Equations and Associated System of Obliquely Reflected Backward Stochastic Differential Equations
Ying Hu,Shanjian Tang
Mathematics , 2008,
Abstract: This paper is concerned with the switching game of a one-dimensional backward stochastic differential equation (BSDE). The associated Bellman-Isaacs equation is a system of matrix-valued BSDEs living in a special unbounded convex domain with reflection on the boundary along an oblique direction. In this paper, we show the existence of an adapted solution to this system of BSDEs with oblique reflection by the penalization method, the monotone convergence, and the a priori estimates.
Multi-Dimensional Backward Stochastic Differential Equations of Diagonally Quadratic generators
Ying Hu,Shanjian Tang
Mathematics , 2014,
Abstract: The paper is concerned with adapted solution of a multi-dimensional BSDE with a "diagonally" quadratic generator, the quadratic part of whose $i$th component only depends on the $i$th row of the second unknown variable. Local and global solutions are given. In our proofs, it is natural and crucial to apply both John-Nirenberg and reverse H\"older inequalities for BMO martingales.
Optimization of clear liquid fermentation condition for ethanol production from Canna edulis Kerl  [PDF]
Ying Shen, Qing-li Tang, Tian-Xiang Wu
Natural Science (NS) , 2010, DOI: 10.4236/ns.2010.22019
Abstract: In this paper, clear liquid fermentation condition for ethanol production from Canna edulis Kerl with orthogonal design was studied. We have studied five factors that influenced clear liquid fermentation condition for ethanol production from Canna edulis Kerl by the single-factor test. The five factors were α-amylase amount, glu-coamylase amount, pH, nitrogen and auxiliary materials amount. Selected the best amounts of α-amylase, glucoamylase, pH, nitrogen source and auxiliary materials by means of the singe- factors test. And then, we used the Orthogonal test to optimize the fermentation process. The study showed that the best fermentation condi-tions were α-amylase amount 7 u/g C.eduli, glu-coamylase amount 145u/g C. edulis, pH 4.4 and the amount of urea 0.08%, 1% of rice bran as auxiliary materials. The rate of alcohol which was produced by the best fermentation conditions is 21.5% that increased by 1.3% than the rate of alcohol by the single-factor test.
Progress and Prospect of Extreme Climate Events in Arid Northwest China  [PDF]
Xiangling Tang, Xin Lv, Feng Xue, Ying He
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.41004
Abstract:

Extreme climate events have significant influences on ecological systems and social economic systems. The global climate is becoming warmer and warmer, so extreme climate events will probably increase in both frequency and intensity, and the Northwest arid region of China is situated in the middle latitudes, all of which combine to make this area be come the most sensitive region to global climate change. For this reason, based on home and broad literature of research in extreme climate events, this paper mainly discusses those scientific problems which are waiting for resolved and we should strength work that those need research in future from extreme climatic events concept, their change regular, the discussion of theory reasons, and review from mode and simulate, as well as sum up some research results related ex treme climatic change.

The Effects of TiO2 Particle Size on the Properties of PTFE/TiO2 Composites  [PDF]
Fuchuan Luo, Ying Yuan, Bin Tang, Jun Yang, Shuren Zhang
Journal of Materials Science and Chemical Engineering (MSCE) , 2017, DOI: 10.4236/msce.2017.57007
Abstract:
TiO2 filled polytetrafluoroethylene (PTFE) composite were fabricated for microwave circuit applications. PTFE/TiO2 composites were prepared by cold pressing and hot treating. The particle size of TiO2 varied from 5 μm to 11 μm.TiO2 powders with different sizes were prepared by the solid state ceramic route. The effects of TiO2 particle size on the microstructure, density, moisture absorption, thermal conductivity and microwave dielectric properties of PTFE/TiO2 composites were investigated. The density showed an increasing trend as the TiO2 particle size increased, while the dielectric loss (tanδ) and moisture absorption decreased with the increase of TiO2 particle size. The dielectric constant (εr) and thermal conductivity (λ) decreased up to D50 = 6.5 μm and then sharply increased. Good properties with values of εr = 6.8, tanδ = 0.0012 and λ = 0.533 W?m?1?K?1 were obtained in PTFE/TiO2 composites when the particle size of TiO2 was 11 μm.
Effects of CaTiO3 Loading on the Properties of PTFE/TiO2 Composites  [PDF]
Bin Tang, Fuchuan Luo, De Zhou, Ying Yuan, Shuren Zhang
Journal of Materials Science and Chemical Engineering (MSCE) , 2017, DOI: 10.4236/msce.2017.57006
Abstract:
In this paper, a detailed study was carried out on the PTFE reinforced with TiO2 and CaTiO3. The filler content of ceramic powder was a fixed value of 61 wt% and the content of CaTiO3 in PTFE matrix varied from 0 wt% to 16 wt% with a step size of 4 wt%. The effects of CaTiO3 loading on the density, moisture absorption, thermal expansion, microstructure and microwave dielectric properties were investigated. As CaTiO3 loading content increased from 0 wt% to 16 wt%, the thermal expansion initially displayed a sharp increase, and showed a slight enhancement when the content of CaTiO3 exceeded 12 wt%. The density experienced a continuous decrease with the addition of CaTiO3. The moisture absorption displayed a steady increase with the increasing CaTiO3 loading amount. The changing of dielectric constant (εr) and loss tangent (tanδ) were similar to that of the moisture absorption in a manner. Good dielectric properties with values of εr = 11.60, tanδ = 0.002 were obtained in the PTFE matrix with 16 wt% CaTiO3 and 45 wt% TiO2.
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