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| 1 | Voltage regulation in LV grids by coordinated volt-var control strategies显示文摘The increasing penetration level of photovoltaic(PV)power generation in low voltage(LV)networks results in voltage rise issues,particularly at the end of the feeders.In order to mitigate this problem,several strategies,such as grid reinforcement,transformer tap change,demand-side management,active power curtailment,and reactive power optimization methods,show their contribution to voltage support,yet still limited.This paper proposes a coordinated volt-var control architecture between the LV distribution transformer and solar inverters to optimize the PV power penetration level in a representative LV network in Bornholm Island using a multi-objective genetic algorithm.The approach is to increase the reactive power contribution of the inverters closest to the transformer during overvoltage conditions.Two standard reactive power control concepts,cosu(P)and Q(U),are simulated and compared in terms of network power losses and voltage level along the feeder.As a practical implementation,a reconfigurable hardware is used for developing a testing platform based on real-time measurements to regulate the reactive power level.The proposed testing platform has been developed within PVNET.dk project,which targets to study the approaches for large PV power integration into the network,without the need of reinforcement. | Miguel JUAMPEREZ Guangya YANG Søren Bækhøj KJÆR | 2014 | Journal of Modern Power Systems and Clean Energy2014，2，4： | 10 |
| 2 | Experimental small bowel preservation using Polysol: A new alternative to University of Wisconsin solution, Celsior and histidine-tryptophan-ketoglutarate solution?显示文摘AIM: To evaluate the potential of Polysol, a newly developed preservation solution, in cold storage of small bowel grafts, compared with the current standards, University of Wisconsin solution (UW), Celsior and histidine-tryptophan-ketoglutarate solution (HTK). METHODS: Male Wistar rats were used as donors. Small bowels were retrieved, flushed and then stored in the respective 4 solutions for 18 h at 4℃. Functional integrity of the grafts was evaluated by isolated reperfusion with oxygenated Krebs-Henseleit buffer at 37℃ for 30 min in all 4 groups. RESULTS: Polysol preservation exhibited the highest tissue ATP concentration and the lowest release of LDH. Malondialdehyde, an index for tissue lipid peroxidation, was also the lowest in Polysol. Tissue oxygen consumption was significantly higher in Polysol than in the others. Of interest, UW-storage promoted 10-fold higher apoptosis than in the others. Moreover, electron microscopy revealed that the mucosal villi/micro-villi formation and the cell organelles, including mitochondria, were both significantly better preserved in Polysol, while deleterious alterations were apparent in the others, most notably in UW. Although Celsior and HTK exhibited the better trend of results than UW in some parameters, but could not reach the over-all superiority to UW.CONCLUSION: Cold storage using Polysol resulted in significantly better integrity and function of small bowel grafts than UW. Hence, Polysol may be a novel alternative for the small bowel preservation. | Lai Wei Koichiro Hata Benedict Marie Doorschodt Reinhard Büttner Thomas Minor René H Tolba | 2007 | World Journal of Gastroenterology2007，13，27： | 9 |
| 3 | Voltage rise mitigation for solar PV integration at LV grids Studies from PVNET.dk显示文摘Solar energy from photovoltaic(PV)is among the fastest developing renewable energy systems worldwide.Driven by governmental subsidies and technological development,Europe has seen a fast expansion of solar PV in the last few years.Among the installed PV plants,most of them are situated at the distribution systems and bring various operational challenges such as power quality and power flow management.The paper discusses the modelling requirements for PV system integration studies,as well as the possible techniques for voltage rise mitigation at low voltage(LV)grids for increasing PV penetration.Potential solutions are listed and preliminary results are presented. | Guangya YANG Francesco MARRA Miguel JUAMPEREZ Søren Bækhøj KJÆR Seyedmostafa HASHEMI JacobØSTERGAARD Hans Henrik IPSEN Kenn H.B.FREDERIKSEN | 2015 | Journal of Modern Power Systems and Clean Energy2015，3，3： | 5 |
| 4 | The endosomal-lysosomal system: from acidification and cargo sorting to neurodegeneration显示文摘The endosomal-lysosomal system is made up of a set of intracellular membranous compartments that dynamically interconvert,which is comprised of early endosomes,recycling endosomes,late endosomes,and the lysosome.In addition,autophagosomes execute autophagy,which delivers intracellular contents to the lysosome.Maturation of endosomes and/or autophagosomes into a lysosome creates an unique acidic environment within the cell for proteolysis and recycling of unneeded cellular components into usable amino acids and other biomolecular building blocks.In the endocytic pathway,gradual maturation of endosomes into a lysosome and acidification of the late endosome are accompanied by vesicle trafficking,protein sorting and targeted degradation of some sorted cargo.Two opposing sorting systems are operating in these processes:the endosomal sorting complex required for transport(ESCRT)supports targeted degradation and the retromer supports retrograde retrieval of certain cargo.The endosomal-lysosomal system is emerging as a central player in a host of neurodegenerative diseases,demonstrating potential roles which are likely to be revealed in pathogenesis and for viable therapeutic strategies.Here we focus on the physiological process of endosomal-lysosomal maturation,acidification and sorting systems along the endocytic pathway,and further discuss relationships between abnormalities in the endosomal-lysosomal system and neurodegenerative diseases,especially Alzheimer’s disease(AD). | Yong-Bo Hu Eric B Dammer Ru-Jing Ren Gang Wang | 2015 | Translational Neurodegeneration2015，4，1： | 4 |
| 5 | Synthesis, Crystal Structure and Calculated β Value of a Tetrahedral Zinc (II) Complex——Zn(2-NH_2py)_2Br_2显示文摘A new zinc(II) complex, Zn(2-NH2py)2Br2 (py=pyridine), has been synthesized, and its molecular structure has been confirmed by IR, elemental analysis and -ray crystal structure analysis. Its space group is P21/n with Mr=413.43 (C10H12Br2N4Zn), a=7.435(2), b=12.865(3), c=14.186(4)? b=94.08(2)? V=1353.5(5) 3, Z=4, Dc=2.029 g/cm3, F(000)=328, ?2.378mm-1, R=0.0283, wR=0.0501. The total observed reflections with I≥2?I) were 5314, of which the independent reflections were 3106. The complex structure contains a distorted tetrahedron formed by four atoms coordinated to zinc atom, namely two bromide atoms and two nitrogen atoms. The two ZnBr bond lengths within one molecule, 2.3763(6) and 2.4002(5)? respectively, are not equal; and so are the two ZnN bond lengths, which are 2.031(2) and 2.044(2)?respectively. The calculation results using PM3 method through MOPAC software package in Chem 3D show that its first molecular hyperpolarizability b value is 5.210-30esu, which is comparable with that of p-nitroaniline. No bulk SHG effect has been detected due to the centrosymmetric space group. | REN Peng a SU Nan-Bing a QIN Jin-Gui a Michael W. Day b CHEN Chuang-Tianc ( aDepartment of Chemistry, Wuhan University, Wuhan 43007, China) ( bBeckman Institute, California Institute of Technology, Pasadena, CA91125, USAQ ) ( cBeijing R & D Center | 2002 | Chinese Journal of Structural Chemistry2002，21，1： | 3 |
| 6 | Hemangiopoietin, a novel human growth factor for the primitive cells of both hematopoietic and endothelial cell lineages显示文摘 | Liu,YJ Lu,SH Xu,B Yang,RC Ren,Q Liu,B Lu,M Yan,FY Han,ZB Han,ZC | 2005 | 中国生物学文摘2005，19，3： | 2 |
| 7 | Supply Contracts with Financial Hedging显示文摘 | Caldentey René Haugh Martin B | 2009 | Operations Research2009，，1： | 2 |
| 8 | A new Upper Carboniferous stem-orthopteran (Insecta) from Ningxia (China)显示文摘 | Olivier Béthoux Jun-Jie Gu Dong Ren | 2012 | Insect Science2012，19，2： | 2 |
| 9 | Immunisation against PCV2 structural protein by DNA vaccination of mice显示文摘 | Ren S K Annette M B Tine H F | 2004 | Vaccine2004，22，： | 1 |
| 10 | Optimization of pulse-field gel electrophoresis for subtyping of Legionella pneumophila 显示文摘 | ZHOU H J REN H Y ZHU B Q | 2010 | Appl Environ Microbiol2010，76，5： | 1 |
| 11 | Large piezoelectric effect in Pb-free ceramics显示文摘 | LIU W F REN X B | 2009 | Phys Rev Lett2009，103，25： | 1 |
| 12 | Electrical characteristics of proton-irradiated Sc2O3 passivated AlGaN/GaN high electron mobility transistors显示文摘 | Luo B Jihyun Kim Ren F et al | 2003 | Appl Phys Lett2003，82，93： | 1 |
| 13 | Numerical simulation of forced convection heat transfer in porous plate channels using thermal equilibrium and nonthermal equilibrium models显示文摘 | Jiang P X Ren Z P Wang B X | 1999 | Numical Heat Transfer(part A)1999，35，： | 1 |
| 14 | Improved morphology for ohmic contacts to AlGaN/GaN high electron mobility transistors using WSix or W-based metallization显示文摘 | LUO B REN F FITCH R C | 2003 | Appl Phys Lett2003，82，22： | 1 |
| 15 | Structural finite element model updating using ambient vibration test results显示文摘 | Jaishi B Ren W X | 2005 | Journal of Structural Engineering2005，131，4： | 1 |
| 16 | A novel drought-inducible gene,A TAF1,encodes a NAC family protein that negatively regulates the expression of stress-responsive genes in Arabidopsis显示文摘 | LU P L CH EN N Z AN R SU Z QI B S REN F CHEN J WANG X C | 2007 | Plant Molecular Biology2007，63，2： | 1 |
| 17 | The effect of estrogen receptor genotype on litter size and placental traits at term in F2 crossbred gilts 显示文摘 | Van Rens B T de Groot P N Van Der L T | 2002 | Theriogenology2002，57，6： | 1 |
| 18 | Temperature-Dependent Photoluminescence of ZnO Nanorods Prepared by a Simple Solution Route显示文摘 | Lv Y Z Zhang Y H Li C P Ren L R Guo L Xu H B Ding L Yang C L Ge W K and Yang S H | 2007 | Luminescence2007，，： | 1 |
| 19 | Effects of polarons and bipolarons on spin polarized transport in an organic device 显示文摘 | Zhang Y B Ren J F Hu G C Xie S J | 2008 | Organic Electronic2008，9，： | 1 |
| 20 | Reduction of MTT by flavonoids inthe absence of cells 显示文摘 | PENG L WANG B REN P | 2005 | Colloids Surf B Biointerfaces2005，45，2： | 1 |
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