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Search Results: 1 - 10 of 16414 matches for " Yanhong Su "
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Formation of drug-loaded electrospun twin fibers
Jing Zeng,YanHong Kang,GuiTian Su
Chinese Science Bulletin , 2012, DOI: 10.1007/s11434-012-4977-6
Abstract: Electrospinning is a well-known process for producing submicrometer fibers, which have wide applications in many fields, especially in tissue engineering scaffolds and drug-delivery systems. This paper presents the formation of drug-loaded electrospun twin fibers. The correlations between the twin fiber formation and the polymer materials or the loaded drugs were studied by using poly(l-lactide) and poly(l-lactide-co-glycolide) as electrospinning materials, and rifampin and paclitaxel as loaded drugs. Scanning electron microscopy showed that the formation of twin fibers is significantly affected by the loaded drug but not the polymer material. A possible reason for twin fiber formation was analyzed.
Combination of Aromatase Inhibitors with Metronomic Capecitabine: A New Chemoendocrine Treatment for Advanced Breast Cancer  [PDF]
Wei Shi, Xinyue Wang, Xiwen Bi, Wen Xia, Jiajia Huang, Yanhong Su, Zhangzan Huang, Zhongyu Yuan
Journal of Cancer Therapy (JCT) , 2019, DOI: 10.4236/jct.2019.102011
Abstract: Purpose: Endocrine therapy is one of the main treatment options for hormone receptor (HR)-positive advanced breast cancer (ABC). However, whether the combination of endocrine therapy with chemotherapy is practicable and more effective than endocrine therapy alone remains unknown. The aim of this study was to investigate the clinical efficacy of the aromatase inhibitors (AIs) combined with metronomic capecitabine to provide the clinical evidence for further research in patients with HR-positive ABC. Methods: Data from 407 patients with HR-positive ABC were retrospectively analyzed. A total of 305 patients were given AIs alone, and 102 patients were given AIs plus capecitabine as first-line treatment. Progression-free survival (PFS) was the primary endpoint. Results: The median follow-up for all patients was 47.0 months (range, 3 - 119 months). The median overall survival (OS) and PFS were 52.0 months and 24.2 months, respectively. The median PFS in the combination group was significantly longer than that in the AIs group (22.0 months vs. 14.0 months, p = 0.002). Additionally, patients in the
Factors Hindering P.E. Teaching Development in Chinese Universities and the Corresponding Strategies  [PDF]
Yanhong Jing
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.47030
Abstract: Through analyzing the shortages and strengths of P.E. development in our country’s universities, the factors that affect P.E. development in universities include: teaching management level; teaching guiding ideology; the curriculum setting and teaching pattern; the quality of the P.E. teachers; the teaching environment and so on, and some corresponding development strategies based on these analysis are proposed, so as to provide some theories bases to support P.E. teaching and development in our country’s university to educate more high-quality students out of the P.E. teaching system of high education.
Review of Contemporary Researches on Physical Education Teachers from a Sociological Perspective  [PDF]
Yanhong Jing
Advances in Physical Education (APE) , 2016, DOI: 10.4236/ape.2016.63024
Abstract: Dramatic changes in education occurred to the western communities during the late 20th century when a considerable number of education reforms were carried out, in which teachers played an essential role. In the issue of education reform, there is significant similarity between contemporary China and western communities. Based on sociological perspective, this article reviews literature of mainstream researches on physical education teachers in the past three decades and summarizes three hot research areas: P.E. teachers’ profession development, work environment and their marginalization.
Study on the Improvement of Fresh Electricity Suppliers Cold Chain Logistics Service Quality  [PDF]
Yanhong Liu
Journal of Service Science and Management (JSSM) , 2016, DOI: 10.4236/jssm.2016.96050
Abstract:
Improvement of service quality in cold chain logistics of fresh electricity suppliers has great significance to reduce logistics costs, get access to vast number of customer groups and enhance core competitiveness. This paper uses SIPOC (Suppliers, Input, Process, Output, Customers) model to draw the fresh electricity suppliers cold chain logistics service flow chart, by using the fishbone diagram to analyze the influential factors based on the mastery of fresh electricity suppliers cold chain logistics service flow. Finally, this paper puts forward 6 measures to improve the fresh electricity suppliers cold chain logistics service quality: to strengthen staff training and improve service awareness; to improve logistics equipment and develop cold chain technology; to improve the material supply and meet customer demand; to optimize the distribution route and develop the intelligent logistics; to carry out lean management and reduce logistics cost; to make cold chain logistics service quality management system and strengthen quality control and supervision.
Research on Business Model Innovation of Logistics Enterprises  [PDF]
Yanhong Liu
Modern Economy (ME) , 2016, DOI: 10.4236/me.2016.714150
Abstract: At present, the business model innovation has become the mainstream of enterprise innovation; logistics enterprises must carry out the business model innovation in the face of environment change. Firstly, this paper analyzes the evolution and connotation of business model and lays theoretical foundation. Secondly, it analyzes the influence of environmental change on the logistics enterprises business model. Finally, it puts forward 5 kinds of logistics enterprise business model innovation: cross-border business model, mutually beneficial business model, open business model, supply chain integration services business model and multiple platform business model. These provide a reference for the logistics enterprises to carry out the business model innovation.
Joint Contract under Inequity Aversion  [PDF]
Guangxing WEI, Yanhong QIN
Journal of Service Science and Management (JSSM) , 2009, DOI: 10.4236/jssm.2009.23018
Abstract: The standard contract theory adopts the traditional hypothesis of pure self-interest. However, a series of game experiments have proven that people are not any self-interest but also inequity averse. Then, how will the inequity aversion influence the optimal contract for multiple agents? This paper attempts to obtain new theoretical insights by incorporating inequity aversion into the standard frame of optimal contract design. The optimal contract under relatively weak inequity aversion is found to be the relative joint contract, by which payment to each independent agent increases with his own output and others’ and agents with higher output will be paid more, while what under strong, even very strong, inequity aversion is the egalitarian joint contract, by which payment to each independent agent is always equal and hence agents with lower output will not be paid less. Moreover, it is shown that the inequity aversion results in incen-tive efficiency losses as agents with inequity aversion will suffer disutility in face of unfair allocation. Consequently, the principal has to pay additional inequity rent and risk compensation for inequity aversion to the agents, which both are the incentive efficiency losses resulted from inequity aversion and have never been explored by the standard contract theory, besides information rent and risk compensation for asymmetric information, which both have been probed in the standard contract theory deeply. In this way, this paper designs the optimal contracts for multiple agents with more realistic assumptions and hence can explain real economic behaviors more properly.
The Empirical Study on the Relationship between Listed Companies’ Private Placement and Operating Performance
—Based on the Empirical Data from 2009 to 2014
 [PDF]

Guoxi Wang, Yanhong Li
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.310009
Abstract: After the generation of private placement system, it is popular with the securities market and listed companies, it has become one of the main channels for enterprises to carry out equity refinancing, domestic scholars’ studies mainly focus on the purchase discount, big shareholders’ profit transfer problems, and problems with the company’s short-term effect, articles about private placement and operate performance are not enough, conclusions are also different, so it is very necessary for the empirical study on the relationship between listed companies’ private placement and performance by using the private placement experience of western countries and combining the reality of the capital market’s development of China. In this paper, by using factor analysis method and using Chinese A-share listed companies who have implemented private placement in 2010 as the samples, through calculating the samples’ comprehensive performance score from 2009 to 2014 and its average ranking non-parametric test, the results show that whether in the short or long term, private placement has a negative effect on companies performance, but the effect is not significant in statistics, the results will be more of reference value and practical significance, this paper will be beneficial for investors, the market regulator and the private placement’s follow-up study.
Influence of Preparation Technology on the Structure and Phase Composition of MoSi2-Mo5Si3/SiC Multi-coating for Carbon/Carbon Composites

Xin Yang,Yanhong Zou,Qizhong Huang,Zhean Su,Mingyu Zhang,Xin Chang,Zhiyong Xie,

材料科学技术学报 , 2010,
Abstract: Oxidation protective MoSi2-Mo5Si3/SiC multi-coatings for carbon/carbon composites were prepared by chemical vapor reaction and slurry-sintering method. The influence of preparation technology on the structure and phase composition of the coating was investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analyses, and then their relationship was discussed. The results indicate that the Si/Mo ratio of the slurry and sintering processing were two main factors that significantly affected the structure and phase composition of the multi-coating. Appropriate sintering process and relatively high Si/Mo ratio were essential for preparing the multi-coating with dense structure and favorable phase composition. After being sintered at 1723 K for 2 h and with the Si/Mo ratio of the slurry being 4.5 (weight ratio), a dense structure accompanied by favorable phase composition of the coating can be obtained. When heat treated at 2373 K for 1 h, this coating became more compact and continuous. Oxidation tests (performed at 1623 and 1823 K) demonstrated that both of these two obtained multi-coatings exhibited better anti-oxidation property than single layer SiC coating.
A Cost Model of Partial Postponement Strategy of the Single-Period Product under Stochastic Demand
Yanhong Qin
Research Journal of Applied Sciences, Engineering and Technology , 2012,
Abstract: The target of our study is to set a new cost model to solve the partial postponement problem by adding penalty cost parameter of shortage under stochastic demand. By doing this, we hope the new model can be better applied to real conditions. Postponement is an important strategy to achieve mass customization and it has been adopted by many companies to improve production operation, inventory and logistics management and supply chain operation, but the postponed activity will cause additional costs at the same time. There have been many literatures trading off between the relative cost and the postponement benefits of product manufacture, and our paper is to solve the similar problem.
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