Study on efficiency of agricultural products circulation in Shandong Province Based on DEA method

YU Zhi-hua,Han xue,Quan xiao-yan 한국유통과학회 2013 한국유통과학회 학술대회 논문집 Vol.2013 No.-

To reduce the cost of agricultural products circulation, and to improve circulation efficiency has important significance for Shandong Economic restructuring and development pattern. Based on the research on agricultural products trading market of Shandong Province, we built the DEA model, and conduct an empirical analysis on Shandong Province markets of agricultural products circulation efficiency, and then Puts forward the following countermeasures to improve the efficiency of agricultural products circulation of Shandong Province: Firstly, the trading market scientific planning, integration of existing resources and rational and efficient use; Secondly , Should be appropriate to expand the scale of construction; Third ,improve the management capacity and level of Technology.

Green Business Development Models and Strategies of Shandong Province

YU Zhi hua 한국유통과학회 2017 KODISA ICBE (International Conference on Business Vol.2017 No.-

The Construction Project of Building an ecological province and Yellow and blue economic zone has effectively promoted the development of commercial, but also has a higher and more urgent requirement for the province of green commercial development. On the base of summarizing the green business development model of Shandong Province, explored the direction of green business development and corresponding countermeasures, which in order to provide a theoretical basis for the economic growth mode transformation of Shandong Province.

Expression Vectors for Human-mouse Chimeric Antibodies

Hua Xiong,Yu Liang Ran,Jin Liang Xing,Xiang Min Yang,Yu Li,Zhi Nan Chen 한국생활환경학회 2005 BMB Reports Vol.38 No.4

DEVELOPMENT OF CHINA LIGHT-DUTY VEHICLE TEST CYCLE

Yu Liu,Zhi Xin Wu,Hua Zhou,Han Zheng Nan Yu,Xiao Pan An,Jing Yuan Li,Meng Liang Li 한국자동차공학회 2020 International journal of automotive technology Vol.21 No.5

Driving cycles provide a basis for vehicle development and calibration and also serves as the foundation for energy consumption and emissions certification of vehicles. This paper presents the China Light-Duty Vehicle Test Cycle (CLTC) developed by the China Automotive Technology & Research Center (CATARC). First, the important steps and technical routes toward the CLTC development process are summarized. Second, the specific CLTC development process is presented in detail, including the data acquisition and data analysis procedures, weighting factor development and driving cycle construction. Then, the main driving characteristics of the New European Driving Cycle (NEDC), the Worldwide Harmonized Light-Duty Vehicles Test Cycle (WLTC), the Federal Test Procedure (FTP-75), the CLTC and the actual collected data are compared. The CLTC has low average speed, a high idle speed ratio and more frequent acceleration and deceleration characteristics. Finally, 70 vehicles are t ested based on the NEDC, WLTC, and CLTC according to their legislative procedures in the vehicle emission laboratories of the CATARC and the manufacturers. The results show that the CLTC’s fuel consumption is much higher than that of the NEDC and WLTC, and CLTC can effectively reflect the actual fuel consumption of users.

A damage localization method based on the singular value decomposition (SVD) for plates

Zhi-Bo Yang,Jin-Tao Yu,Shao-Hua Tian,Xue-Feng Chen,Guan-Ji Xu 국제구조공학회 2018 Smart Structures and Systems, An International Jou Vol.22 No.5

Boundary effect and the noise robustness are the two crucial aspects which affect the effectiveness of the damage localization based on the mode shape measurements. To overcome the boundary effect problem and enhance the noise robustness in damage detection, a simple damage localization method is proposed based on the Singular Value Decomposition (SVD) for the mode shape of composite plates. In the proposed method, the boundary effect problem is addressed by the decomposition and reconstruction of mode shape, and the noise robustness in enhanced by the noise filtering during the decomposition and reconstruction process. Numerical validations are performed on plate-like structures for various damage and boundary scenarios. Validations show that the proposed method is accurate and effective in the damage detection for the two-dimensional structures.

Efficient hole injection in blue organic light-emitting devices by using a double hole injection layer to improve chromaticity and electrical characteristics

Hua-Ping Lin,Fan Zhou,Xiao-Wen Zhang,Dong-Bin Yu,Jun Li,Liang Zhang,Xue-Yin Jiang,Zhi-Lin Zhang 한국물리학회 2011 Current Applied Physics Vol.11 No.3

A double hole injection layer consisting of Ag_2O//MoO_x was applied to a 4,40-bis (2,2-diphenylvinyl)-1,10-biphenyl-based blue organic light-emitting device (OLED). The hole current injection of the devicewas improved and the performance of the blue OLED was enhanced. We have observed that the insertion of such double layer leads to a striking improvement in chromaticity and electrical characteristics. This device showed much better chromaticity and less current-induced color shift as compared to the corresponding single hole injection layer counterparts. Using this strategy, a striking improvement in the electrical properties with lower driving voltage, higher power efficiency and a weak current-induced fluorescence quenching was achieved. This could be explained by the fact that an interlayer of Ag_2O//MoO_x provided a stepped energy level which greatly facilitated hole injection and hence enhanced injection current. The result is verified by using the J―V curves of ‘only’ devices and further explained with the help of Fowler-Nordheim (F-N) tunneling theory.

Overexpression of Astrocyte Elevated Gene-1 (AEG-1) in Cervical Cancer and its Correlation with Angiogenesis

Yu, Jian-Qin,Zhou, Qing,Zhu, Hua,Zheng, Fei-Yun,Chen, Zhi-Wen Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.6

Objectives: To explore the expression of astrocyte elevated gene-1 (AEG-1) in cervical cancer and analyze its correlation with microvascular density (MVD), nuclear factor kappaB (NF-kB p65) and vascular endothelial growth factor (VEGF). Materials and Methods: Immunohistochemical MaxVision method was adopted to detect the expression level of AEG-1, NF-kB p65 and VEGF in 45 samples of invading cervical cancer and 12 samples of cervicitis from The First Affiliated Hospital of Wenzhou Medical University. Tumor microvascular endothelial marker CD34 combined with Weidner was used to determine the MVD in cervical cancer tissue. The positive expression and staining conditions of AEG-1, NF-kB p65 and VEGF in cervical cancer tissues were observed under a light microscope. Correlations between expression of AEG-1 protein and those of NF-Kb p65 and VEGF, as well as MVD, were analyzed using Pearson correlation. Results: The expression levels of AEG-1 were $0.186{\pm}0.043$ in cervical cancer and $0.051{\pm}0.002$ in chronic cervicitis (p<0.01). Moreover, expression of AEG-1 was related to vascular invasion and lymphatic metastasis of cervical cancer (p<0.01), but not with age of the patients, differentiation degree, tumour size, pathological type and parametrial infiltration (p>0.05). Pearson correlation analysis showed that the expression of AEG-1 was linked with NF-kB p65 (r=0.501, p=0.000), VEGF (r=0.718, p=0.000) as well as MVD in cervical cancer tissue (r=0.815, p=0.000). Conclusions: AEG-1 is highly expressed in cervical cancer and promotes angiogenesis, which might be related to the fact that AEG-1 activating the signal pathway of NF-kB could up-regulate the level of VEGF expression.

A New Microtiter Plate-based Screening Method for Microorganisms Producing Alpha-amylase Inhibitors

Zhi-Hua Feng,Yuan-Shan Wang,Yu-Guo Zheng 한국생물공학회 2011 Biotechnology and Bioprocess Engineering Vol.16 No.5

Alpha-amylase inhibitors are widely used by the pharmaceutical and agricultural industries, such as the treatment of diabetes and obesity and insect controller. Here, we developed a colorimetric method to screen for α-amylase inhibitor producing strains or mutants with higher α-amylase inhibitor productivity. This method relies on absorbance changes at 402 nm that are due to the inhibition of α-amylase catalyzed hydrolysis of 2-Chloro-4-nitrophenyl-4-O-β-D-galactopyranosyl-maltoside by α-amylase inhibitors. The assay can be performed on a microtiter plate, making it simple and convenient. Using this method,α-amylase inhibitor producing strains and mutants with higher α-amylase inhibitor productivity can be rapidly screened. One strain, ZJB-08196, with the highest α-amylase inhibition was isolated and identified as Actinoplanes utahensis, and one mutant with higher acarbose production was obtained by screening 3,000 variants using this method.

Bayesian forecasting approach for structure response prediction and load effect separation of a revolving auditorium

Zhi Ma,Chung-Bang Yun,Yan-Bin Shen,Feng Yu,Hua-Ping Wan,Yao-Zhi Luo 국제구조공학회 2019 Smart Structures and Systems, An International Jou Vol.24 No.4

A Bayesian dynamic linear model (BDLM) is presented for a data-driven analysis for response prediction and load effect separation of a revolving auditorium structure, where the main loads are self-weight and dead loads, temperature load, and audience load. Analyses are carried out based on the long-term monitoring data for static strains on several key members of the structure. Three improvements are introduced to the ordinary regression BDLM, which are a classificatory regression term to address the temporary audience load effect, improved inference for the variance of observation noise to be updated continuously, and component discount factors for effective load effect separation. The effects of those improvements are evaluated regarding the root mean square errors, standard deviations, and 95% confidence intervals of the predictions. Bayes factors are used for evaluating the probability distributions of the predictions, which are essential to structural condition assessments, such as outlier identification and reliability analysis. The performance of the present BDLM has been successfully verified based on the simulated data and the real data obtained from the structural health monitoring system installed on the revolving structure.

A high performance of BPhen-based white organic light-emitting devices with a dual-emitting layer and its electroluminescent spectral property

Hua-Ping Lin,Fan Zhou,Jun Li,Xiao-Wen Zhang,Dong-Bin Yu,Liang Zhang,Xue-Yin Jiang,Zhi-Lin Zhang 한국공업화학회 2011 Journal of Industrial and Engineering Chemistry Vol.17 No.4

This work demonstrated the fabrication of white organic light-emitting devices (WOLEDs) using a dual emitting layer (d-EML) consisting of blue and ‘white’ emitters. In this d-EML system, the blue emitter not only emits but also assists the incomplete energy transfer. More importantly, it behaves as an effective trapping site for holes, which contributes to the efficient recombination of electron–hole pairs. The d-EML was constructed between the hole-transmitting layer (HTL) and the electron-transmitting layer (ETL) of Alq3 and BPhen. The thickness of the blue emitter used in the d-EML devices has an important effect on chromaticity and efficiency. Through the optimization of device structure, the reasonable white emission with Commission Internationale de L’Eclairage (CIE) color coordinates of (0.33, 0.33) and little color shift was obtained. The device showed an applicable luminance with its maximum luminance of 22,874 cd/m2 at a driving voltage of 16 V. The maximum luminance efficiency was achieved 8.10 cd/A,and the maximum power efficiency was reached 5.07 Lm/W. The result is explained with the help of the excitons generation and diffusion theory. According to the theory of excitons generation and diffusion,an equation has been set up which concerns electroluminescent spectra to the thickness of the two emitters and to the exciton diffusion length.