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      • Third Party Logistics Service Provider Selection : Application of the Improved Aggregate Cost Method

        Zheng-Zhong Ren 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.9

        During the process of enterprise management, those chemical enterprises usually adopt outsourcing, as they hand over the logistical work to the third party. Here, we call the third part the “logistics service provider”. In this paper, Chemical Enterprise A is set as an example to study the application of the optimizing selection for the third party logistics service provider, as well as its improvement of aggregate cost method. This paper is aimed at theory, practicality and operability, and hoping to choose the provider which can guarantee the cost is smallest by introducing the original provider model. Among all the aspects, this paper is persuasive. Meanwhile, due to the instability of the relevant data which are collected, the factors impacting upon the total cost are uncertain, thus their credibility is affected. Later, according to the actual demand of the logistics service provider as well as the Benefit-Cost Ratio in aggregate cost method, the qualitative method and the quantitative method are combined with each other, and then the cost can be reduced through Analytic Hierarchy Process. Moreover, the factors which are irrelevant to cost selection are reasonably transformed into the cost adjustment proportion, and an improved provider selection model is established. At last, by introducing the specific case of the third party logistics service provider of Chemical Enterprise A, the effectiveness in practical application of improving the provider selection model can be verified.

      • The Impact of Cultural Differences on Financial Quality in Cross-border Mergers and Acquisitions: A Case Study of SAIC Motor and Ssangyong Motor

        Jin, Zheng,Ren, Yanyan,Li, Guangyuan 한중경제문화학회 2016 한중경제문화연구 Vol.6 No.-

        This study discusses several issues which are very important in worldwide mergers and acquisitions, such as cultural differences, culture clashes, operating results and financial quality. A case of SAIC Motor's acquisition of Ssangyong Motor is examined. For this study, 20 financial ratios are used to calculate the financial quality of SAIC in the post-acquisition integration. The result shows that cultural differences possibly have a negative effect on post-acquisition integration and cultural clashes are the root cause of the financial quality plummet. The suggestions are also provided that top managers should pay much more attention to the negative effects of cultural clashes and strengthen cultural integration.

      • KCI등재

        A Comparable Study on the Microwave Absorption Properties of Al/Fe/Co Doped OMC/Paraffin Wax Composites

        Yanyan Ren,Hongfeng Li,Guanglei Wu,Le Yang,Chenhui Zheng,LIUDING WANG,Fang Ren,Hui Xing,HONGJING WU 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2016 NANO Vol.11 No.2

        Al/Fe/Co doped ordered mesoporous carbon (OMC) composites have been synthesized by a facile method, and the influence of dopant on the electromagnetic (EM) and microwave absorption properties was investigated in the frequency range of 2–18 GHz. Compared with Fe/Co– OMC composites, the Al–OMC nanocomposite played a great role in adjusting values and frequency dependence of complex permittivity, which gives rise to significant improved microwave absorption and reduced thickness of the corresponding paraffin wax composites. Reflection loss (RL) values less than -5 dB and -10 dB were obtained in the frequency range of 9.2–18 GHz and 10.7–14.7 GHz with a single thickness of 2.00 mm, respectively. Such enhanced EM wave absorption property of the Al–OMC/paraffin wax composite was ascribed to its superior impedance matching characteristic. Thin thickness, broadband absorption microwave absorbers with Al doped OMC nanocomposites were obtained.

      • KCI등재

        Serum Proteomics Analysis of Feline Mammary Carcinoma Based on Label-free and PRM Techniques

        Jia-San Zheng,Ren-Yue Wei,Zheng Wang,Ting-Ting Zhu,Hong-Ri Ruan,Xue Wei,Kai-Wen Hou,Rui Wu 대한수의학회 2020 Journal of Veterinary Science Vol.21 No.3

        Background: Feline mammary carcinoma is the third most common cancer that affects female cats. Objectives: The purpose of this study was to screen differential serum proteins in feline and clarify the relationship between them and the occurrence of feline mammary carcinoma. Methods: Chinese pastoral cats were used as experimental animals. Six serum samples from cats with mammary carcinoma (group T) and six serum samples from healthy cats (group C) were selected. Differential protein analysis was performed using a Label-free technique, while parallel reaction monitoring (PRM) was performed to verify the screened differential proteins. Results: A total of 82 differential proteins were detected between group T and group C, of which 55 proteins were down regulated and 27 proteins were up regulated. Apolipoprotein A-I, Apolipoprotein A-II (ApoA-II), Apolipoprotein B (ApoB), Apolipoprotein C-III (ApoC-III), coagulation factor V, coagulation factor X, C1q, albumen (ALB) were all associated with the occurrence of feline mammary carcinoma. Differential proteins were involved in a total of 40 signaling pathways, among which the metabolic pathways associated with feline mammary carcinoma were the complement and coagulation cascade and cholesterol metabolism. According to the Label-free results, ApoB, ApoC-III, ApoA-II, FN1, an uncharacterized protein, and ALB were selected for PRM target verification. The results were consistent with the trend of the label-free. Conclusions: This experimen is the first to confirm ApoA-II and ApoB maybe new feline mammary carcinoma biomarkers and to analyze their mechanisms in the development of such carcinoma in feline.

      • SCISCIE

        Dy(III) Single-Ion Magnet Showing Extreme Sensitivity to (De)hydration

        Ren, Min,Pinkowicz, Dawid,Yoon, Minyoung,Kim, Kimoon,Zheng, Li-Min,Breedlove, Brian K.,Yamashita, Masahiro American Chemical Society 2013 Inorganic Chemistry Vol.52 No.15

        <P>A new mononuclear dysprosium(III)-cucurbit[6]uril complex has been synthesized and characterized structurally and magnetically. It exhibits single-ion magnet (SIM) behavior with two slow magnetic relaxation processes, which are very sensitive to the solvation degree of the sample. Depending on the amount and type of the solvent in the structure, it is possible to switch the slow magnetic relaxation of this compound between the temperature-independent and temperature-dependent regimes.</P><P>A new mononuclear dysprosium(III)-cucurbit[6]uril complex has been synthesized and characterized structurally and magnetically. It exhibits single-ion magnet (SIM) behavior with two slow magnetic relaxation processes, which are very sensitive to the solvation degree of the sample. Depending on the amount and type of the solvent in the structure, it is possible to switch the slow magnetic relaxation of this compound between the temperature-independent and temperature-dependent regimes.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/inocaj/2013/inocaj.2013.52.issue-15/ic400430q/production/images/medium/ic-2013-00430q_0012.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ic400430q'>ACS Electronic Supporting Info</A></P>

      • SCISCIESCOPUSKCI등재

        Evaluation of Ni Film Interfacial Energy Release Rate on Titanium and Stainless Steel Substrates

        Ren, F. Z.,Zhao, W. Z.,Zhou, G. S.,Ju, X. H.,Zheng, M. 대한금속학회 2002 METALS AND MATERIALS International Vol.8 No.2

        An expression including the effect of residual stress on the interfacial energy release rate is proposed for peeling experiments according to the energy-balance argument. The influence of residual stress on the external work is also contained in the expression. Two numerical methods are employed to evaluate the values of the work expenditure G_db, which is the actual energy dissipated during bending of the peel arm near the peel front. The peeling method is employed to test the interfacial energy release rates, G, for Ni films on Titanium and stainless steel substrates. The results indicate that the value of G for Ni films on stainless steel substrate is about 5.47-6.03 N/m, while 5.23-6.71 N/m for Ni films on titanium substrate; the interfacial energy release rates, G, do not depend on the residual stress in film, film thickness nor peel angle. The effect of residual stress in film on peel strength P/h is also discussed.

      • SCOPUSSCIEKCI등재

        Risk Factors of Rehemorrhage in Postoperative Patients with Spontaneous Intracerebral Hemorrhage : A Case-Control Study

        Ren, Yanming,Zheng, Jun,Liu, Xiaowei,Li, Hao,You, Chao The Korean Neurosurgical Society 2018 Journal of Korean neurosurgical society Vol.61 No.1

        Objective : Rehemorrhage is the most severe complication of postoperative patients with spontaneous intracerebral hemorrhage. The aim of the present study was to assess independent predictors of rehemorrhage and find the possibility of preventing rehemorrhage in postoperative patients with spontaneous intracerebral hemorrhage (sICH). Methods : Medical records of 263 postoperative patients with sICH from our Hospital were reviewed. The relationships between rehemorrhage and parameters were examined by univariate and multivariate analyses. The parameters include time from onset to surgery, hematologic paremeters, neuroimaging characteristics, level and variability of systolic blood pressure, medical histories, operation duration, and blood loss. In addition, relationship between rehemorrhage and clinical outcome were analyzed by using multivariate analyses. Results : Thirty-five (13.31%) patients experienced rehemorrhage after operation. Multivariate analyses indicated that the following factors were independently associated with rehemorrhage : history of diabetes mellitus (odds ratio [OR], 2.717; 95% confidence interval [CI], 1.005-7.346; p=0.049), and midline shift (for every 1 mm increase, OR, 1.117; 95% CI, 1.029-1.214; p=0.009). Rehemorrhage was an independent risk factor of poor functional outcome (OR, 3.334; 95% CI, 1.094-10.155; p=0.034). Conclusion : Our finding revealed that history of diabetes mellitus and admission midline shift were possibly associated with rehemorrhage in postoperative patients with sICH.

      • KCI등재

        Exploring the oral microflora of preschool children

        Wen Ren,Qun Zhang,Xuenan Liu,Shuguo Zheng,Lili Ma,Feng Chen,Tao Xu,Baohua Xu 한국미생물학회 2017 The journal of microbiology Vol.55 No.7

        The oral cavity is one of the most important and complicated habitats in our body and supports diverse microbial communities. In this study, we aimed to determine the bacterial diversity and composition of various oral micro-niches. Samples were collected from supragingival plaque, saliva, and tongue coating from 10 preschool children (30 samples total). 16S rRNA gene pyrosequencing dataset generated 314,639 clean reads with an average of 10,488 ± 2,787 reads per sample. The phyla Firmicutes, Proteobacteria, Actinobacteria, Bacteroidetes, and Fusobacteria were predominant, accounting for more than 90% of the total sequences. We found the highest α diversity, microbial richness, and evenness in plaque, compared with saliva and tongue coating. Plaque was also distinguished from saliva and tongue coating by phylogenetic distances (weighted UniFrac). Taxa with different relative abundances were further identified, confirming the existence of microbial differences across the three niches. Core microbiomes were defined of each niche; however, only a small proportion of operational taxonomic units (8.07%) were shared by the three niches. Coaggregation between Actinomyces spp. and Streptococcus spp. and other correlations among periodontal pathogens, such as Prevotella, Fusobacteria, Capnocytophaga, and Tannerella, were shown by a co-occurrence network. In summary, our study provides a framework of oral microbial communities in the population of preschool children as a baseline for further studies of oral diseases related to microbes.

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