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- 저자 : Xingyou Zhang (검색결과 5 건)
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Xingyou Zhang,Bo Chen,Fei Wang,Xin Wang,Yan Cheng,Guanglei Li 대한전기학회 2019 Journal of Electrical Engineering & Technology Vol.14 No.5
Connecting neighbor microgrids into a multi-microgrids system (MMS) is one of research hotspots in the field of microgrids. This paper analyzes difference of distributed generators configuration and load types among each microgrid in a MMS. A method to evaluate the influence of dynamic behaviors and energy exchange behaviors on power supply reliability of microgrids in a MMS is proposed in this paper. A reliability assessment algorithm which takes account of connectivity ability among microgrids and intermittence characteristics of distributed energy, different load type and energy exchange behavior is also proposed in this paper. Since the proposed model can characterize dynamic behavior of microgrids in a MMS, the proposed method is of great significance for design and operation of a MMS.
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Xingyou Huang,Xiaowu Yang,Fuhai Geng,Hua Zhang,Qianshan He,Lingbing Bu 한국광학회 2010 Current Optics and Photonics Vol.14 No.3
A micro-pulse LIDAR system (MPL) was employed to measure the aerosol over Pudong, Shanghai from July 2008 to January 2009. Based on Fernald method, aerosol optical variables such as extinction coefficient were retrieved and analyzed. Results show that aerosol exists mainly in low layers; aerosol loading reaches its maximum in the afternoon, and then decreases with time until its minimum at night. Most of the aerosol concentrates in the layer below 3 km, and optical extinction coefficient in the layer below 2 km contributes 84.25% of that below 6 km. Two extinction coefficient peaks appear in the near surface layer up to 500 m and in the level around 1000 m. Aerosol extinction coefficient shows a seasonal downward trend from summer to winter.
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Effects of Additives on Nutrients and Fermentation Quality of Alfalfa Silage
Xiaoqing Zhang,Qizhong Sun,Xingyou Li,Xiaoxia Li 한국초지조사료학회 2009 한국초지조사료학회 학술대회논문집 Vol.2009 No.08
Two-year-old, full flower aohan alfalfa (Medicaga sativa cv. aohan) was chosen to evaluate the silage effect by using different additives of Qingbao Ⅱ , Caihe and Yishengkang. Result indicated that additives increased CP content (P<0.05) and decreased CF, ADF and NDF content significantly (P<0.05). Lactic acid content in additives treatments were significantly higher (P<0.01) than control. These result showed that additives improved silage fermentation quality, reduced cellulose contents and improved silage nutritive value. Among three treatments, Caihe and Yishengkang were priority to Qingbao Ⅱ on the effect of promoting the desired lactic acid fermentation.
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Detection of Water Cloud Microphysical Properties Using Multi-scattering Polarization Lidar
Jiaming Xie,Xingyou Huang,Lingbing Bu,Hengheng Zhang,Farhan Mustafa,Chenxi Chu 한국광학회 2020 Current Optics and Photonics Vol.4 No.3
Multiscattering occurs when a laser transmits into dense atmosphere targets (e.g. fogs, smoke or clouds), which can cause depolarization effects even though the scattering particles are spherical. In addition, multiscattering effects have additional information about microphysical properties of scatterers. Thus, multiscattering can be utilized to study the microphysical properties of the liquid water cloud. In this paper, a Monte Carlo method was used to simulate multi-scattering transmission properties of Lidar signals in the cloud. The results showed the slope of the degree of linear polarization (SLDLP) can be used to invert the extinction coefficient, and then the cloud effective size (CES) and the liquid water content (LWC) may be easily obtained by using the extinction coefficient and saturation of the degree of linear polarization (SADLP). Based on calculation results, a microphysical properties inversion method for a liquid cloud was presented. An innovative multiscattering polarization Lidar (MSPL) system was constructed to measure the LWC and CES of the liquid cloud, and a new method based on the polarization splitting ratio of the Polarization Beam Splitter (PBS) was developed to calibrate the polarization channels of MSPL. By analyzing the typical observation data of MSPL observation in the northern suburbs of Nanjing, China, the LWC and CES of the liquid water cloud were obtained. Comparisons between the results from the MSPL, MODIS and the Microwave radar data showed that, the microphysical properties of liquid cloud could be retrieved by combining our MSPL and the inversion method.
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Qian Liu,Zhou Long,Xingyou Dong,Teng Zhang,Jiang Zhao,Bishao Sun,Jingzhen Zhu,Jia Li,Qingqing Wang,Zhenxing Yang,Xiaoyan Hu,Longkun Li 생화학분자생물학회 2017 Experimental and molecular medicine Vol.49 No.-
Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are confirmed to be expressed in bladder interstitial Cajal-like cells (ICC-LCs), but little is known about their possible role in cystitis-associated bladder dysfunction. The present study aimed to determine the functional role of HCN channels in regulating bladder function under inflammatory conditions. Sixty female wild-type C57BL/6J mice and sixty female HCN1-knockout mice were randomly assigned to experimental and control groups, respectively. Cyclophosphamide (CYP)-induced cystitis models were successfully established in these mice. CYP treatment significantly enhanced HCN channel protein expression and Ih density and significantly altered bladder HCN1 channel regulatory proteins. Carbachol (CCH) and forskolin (FSK) exerted significant effects on bladder ICC-LC [Ca2+]i in CYP-treated wild-type (WT) mice, and HCN1 channel ablation significantly decreased the effects of CCH and FSK on bladder ICC-LC [Ca2+]i in both naive and CYP-treated mice. CYP treatment significantly potentiated the spontaneous contractions and CCH (0.001–10 μM)-induced phasic contractions of detrusor strips, and HCN1 channel deletion significantly abated such effects. Finally, we demonstrated that the development of CYP-induced bladder overactivity was reversed in HCN1 / mice. Taken together, our results suggest that CYP-induced enhancements of HCN1 channel expression and function in bladder ICC-LCs are essential for cystitis-associated bladder hyperactivity development, indicating that the HCN1 channel may be a novel therapeutic target for managing bladder hyperactivity.
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