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183篇 您的检索式:作者名="YanKe"
    题名 作者 年代 出处 被引量
1Electrochemical behavior of zirconium in molten NaCl-KCl-K_2ZrF_6 system显示文摘The electrochemical reduction of Zr4+(complex) ions in NaCl-KCl-K2ZrF6 molten salt on Pt electrode was investigated using cyclic voltammetry and square wave voltammetry at 1023 K.Two cathodic reduction peaks related to Zr4+/Zr2+ and Zr2+/Zr steps were observed in the cyclic voltammograms.The result was also confirmed by square wave voltammetry.The diffusion coefficient of Zr4+(complex) ions at 1023 K in NaCl-KCl-K2ZrF6 melt,measured by cyclic voltammetry,is about 4.22×10-6 cm2/s.The characterization of the deposits obtained by potentiostatic electrolysis at different potentials was investigated by XRD,and the results were well consistent with the electrochemical reduction mechanism of Zr4+(complex) ions.WU Yanke XU Zhigao CHEN Song WANG Lijun LI Guoxun 2011Rare Metals2011,30,1:16
2Regeneration of commercial selective catalyst reduction catalysts deactivated by Pb and other inorganic elements显示文摘The regeneration of commercial SCR(Selective Catalyst Reduction) catalysts deactivated by Pb and other elements was studied.The deactivated catalyst samples were prepared by chemical impregnation with mixed solution containing K_2SO_4,Na_2SO_4,CaSO_4,Pb(NO_3)_2and NH_4H_2PO_4.A novel method combining Ethylenediaminetetraacetic acid disodium salt(EDTA-2Na) and H_2SO_4solution(viz.catalysts treated by dilute EDTA-2Na and H_2SO_4 solution in sequence) was used to recover the activity of deactivated samples,and the effect was compared with single H_2SO_4,oxalic acid,acetic acid,EDTA or HNO_3 solutions.The surface structure,acidity and reducibility of samples were characterized by N_2adsorption–desorption,inductively coupled plasma optical emission spectrometer(ICP-OES),scanning electron microscopy(SEM),X-ray diffraction(XRD),X-ray fluorescence(XRF),H-2-temperature programmed section(H_2-TPR),NH3-temperature programmed desorption(NH3-TPD) and in situ DRIFTS.Impurities caused a decrease of specific surface area and surface reducibility,as well as Br?nsted acid sites,and therefore led to severe deactivation of the SCR catalyst.The use of an acid solution alone possibly eliminated the impurities on the deactivated catalyst to some extent,and also increased the specific surface area and Br?nsted acid sites and promoted the surface reducibility,thus recovered the activity partially.The combination of EDTA-2Na and H_2SO_4 could remove most of the impurities and improve the activity significantly.The removal of Pb should be an important factor for regeneration.Due to a high removal rate for Pb and other impurities,the combination of EDTA-2Na and H_2SO_4 solutions provided the best efficiency.Yanke Yu Jinxiu Wang Jinsheng Chen Xinjiang He Yujing Wang Kai Song Zongli Xie 2016Journal of Environmental Sciences2016,28,9:11
3Comparation of the predictive value between ultrasonography and urodynamics for the efficacy of transurethral resection of prostate in benign prostatic hyperplasia patients显示文摘QI Jun YU Yong-jiang HUANG Tao XU Ding JIAO Yank KANG Jian CHEN Ya-Qin ZHU Yun-kai HUANG Yi-ran 2012Chinese Medical Journal2012,,9:8
4Effects of calcination temperature on physicochemical property and activity of CuSO4/TiO2 ammonia-selective catalytic reduction catalysts显示文摘CuSO4/TiO2 catalysts with high catalytic activity and excellent resistant to SO2 and H2 O,were thought to be promising catalysts used in Selective catalytic reduction of nitrogen oxides by NH3.The performance of catalysts is largely affected by calcination temperature.Here,effects of calcination temperature on physicochemical property and catalytic activity of CuSO4/TiO2 catalysts were investigated in depth.Catalyst samples calcined at different temperatures were prepared first and then physicochemical properties of the catalyst were characterized by N2 adsorption-desorption,X-ray diffraction,thermogravimetric analysis,Raman spectra,Fourier-transform infrared spectroscopy,X-ray photoelectron spectroscopy,temperature-pro grammed desorption of NH3,temperature-programmed reduction of H2 and in situ diffuse reflectance infrared Fourier transform spectroscopy.Results revealed that high calcination temperature had three main effects on the catalyst.First,sintering and anatase transform into rutile with increase of calcination temperature,causing a decrement of specific surface area.Second,decomposition of CuSO4 under higher calcination temperature,resulting in disappears of Br(?)nsted acid sites(S-OH),which had an adverse effect on surface acidity.Third,CuO from the decomposition of CuSO4 changed surface reducibility of the catalyst and favored the process of NH3 oxidation to nitrogen oxides(NOx).Thus,catalytic activity of the catalyst calcined under high temperatures(≥600℃)decreased largely.Yanke Yu Jiali Zhang Changwei Chen Chi He Jifa Miao Huirong Li Jinsheng Chen 2020Journal of Environmental Sciences2020,32,5:6
5The seasonal variations in the significant wave height and sea surface wind speed of the China's seas显示文摘Long-term variations in a sea surface wind speed(WS) and a significant wave height(SWH) are associated with the global climate change, the prevention and mitigation of natural disasters, and an ocean resource exploitation,and other activities. The seasonal characteristics of the long-term trends in China's seas WS and SWH are determined based on 24 a(1988–2011) cross-calibrated, multi-platform(CCMP) wind data and 24 a hindcast wave data obtained with the WAVEWATCH-III(WW3) wave model forced by CCMP wind data. The results show the following.(1) For the past 24 a, the China's WS and SWH exhibit a significant increasing trend as a whole, of3.38 cm/(s·a) in the WS, 1.3 cm/a in the SWH.(2) As a whole, the increasing trend of the China's seas WS and SWH is strongest in March-April-May(MAM) and December-January-February(DJF), followed by June-July-August(JJA), and smallest in September-October-November(SON).(3) The areal extent of significant increases in the WS was largest in MAM, while the area decreased in JJA and DJF; the smallest area was apparent in SON. In contrast to the WS, almost all of China's seas exhibited a significant increase in SWH in MAM and DJF; the range was slightly smaller in JJA and SON. The WS and SWH in the Bohai Sea, the Yellow Sea, East China Sea, the Tsushima Strait, the Taiwan Strait, the northern South China Sea, the Beibu Gulf, and the Gulf of Thailand exhibited a significant increase in all seasons.(4) The variations in China's seas SWH and WS depended on the season. The areas with a strong increase usually appeared in DJF.ZHENG Chongwei PAN Jing TAN Yanke GAO Zhansheng RUI Zhenfeng CHEN Chaohui 2015Acta Oceanologica Sinica2015,34,9:5
6The Interdecadal Changes of South Pacific Sea Surface Temperature in the Mid-1990s and Their Connections with ENSO显示文摘The characteristic changes of South Pacific sea surface temperature anomalies(SSTAs) for the period January 1979 to December 2011, during which the 1990s Pacific pan-decadal variability(PDV) interdecadal regime shifts occurred, were examined. Empirical Orthogonal Function(EOF) analysis was applied to the monthly mean SSTA for two sub-periods: January 1979 to December 1994(P1) and January 1996 to December 2011(P2). Both the spatial and temporal features of the leading EOF mode for P1 and P2 showed a remarkable difference. The spatial structure of the leading EOF changed from a tripolar pattern for P1(EOF-P1) to a dipole-like pattern for P2(EOF-P2). Besides, EOF-P1(EOF-P2) had significant spectral peaks at 4.6 yr(2.7 yr). EOF-P2 not only had a closer association with El Nin o-Southern Oscillation(ENSO), but also showed a faster response to ENSO than EOF-P1 based on their lead-lag relationships with ENSO. During the development of ENSO, the South Pacific SSTA associated with ENSO for both P1 and P2 showed a significant eastward propagation. However, after the peak of ENSO, EOF-P1 showed a stronger persistence than EOF-P2, which still showed eastward propagation. The variability of the SSTA associated with the whole process of ENSO evolution during P1 and the SSTA associated with the development of ENSO during P2 support the existence of ocean-to-atmosphere forcing, but the SSTA associated with the decay of ENSO shows the phenomenon of atmosphere-to-ocean forcing.LI Gang LI Chongyin TAN Yanke BAI Tao 2014Advances in Atmospheric Sciences2014,31,1:5
7A new method for evaluating the drought tolerance of upland rice cultivars显示文摘Worldwide, approximately 27 million ha of rice are grown in upland rather than paddy fields, and is subject to drought stress. To counter this stress, it is desirable to breed new rice cultivars with improved drought tolerance. For breeding purposes, especially for breeding upland rice, it is desirable to develop a simple and accurate method to evaluate rice drought tolerance. We describe a new method that can be used to evaluate efficiently the drought tolerance degree(DTD) of upland rice cultivars, and call it the DTD method.DTD is defined as the mean of the ratios of green leaf length to total leaf length of the top three leaves in every rice seedling after drought treatment, and thus takes values from zero to one. To test whether the DTD method works effectively to evaluate drought tolerance of upland rice cultivars, we determined the DTD values of 13 upland rice cultivars showing varying degrees of drought tolerance in drought-tolerance trials. The idrl-1 mutant, which displayed the strongest drought tolerance of the 13 cultivars as identified by drought-tolerance trials under severe drought stress, had the highest DTD value and297-28, displaying the weakest drought tolerance, had the lowest DTD value. Further analyses of water potential, survival rate, panicles per plant, spikelets per panicle, seed setting rate, yield per plant, and contents of proline, chlorophyll, and malondialdehyde(MDA) indicated that DTD values are in general correlated with the values of these traits,making this new method useful for assessing the drought tolerance of upland rice cultivars.These results show that the DTD method is a simple, direct and relatively accurate evaluation method for drought-tolerance breeding of upland rice.Xiaofeng Zu Yanke Lu Qianqian Wang Peifeng Chu Wei Miao Huaqi Wang Honggui La 2017The Crop Journal2017,5,6:5
8The Influence of El Ni?o on MJO over the Equatorial Pacific显示文摘In this paper, the influence of El Ni?o event on the Madden-Julian Oscillation(MJO) over the equatorial Pacific is studied by using reanalysis data and relevant numerical simulation results. It is clearly shown that El Ni?o can reduce the intensity of MJO. The kinetic energy of MJO over the equatorial Pacific is stronger before the occurrence of the El Ni?o event, but it is reduced rapidly after El Ni?o event outbreak, and the weakened MJO even can continue to the next summer. The convection over the central-western Pacific is weakened in El Ni?o winter. The positive anomalous OLR over the central-western Pacific has opposite variation in El Ni?o winter comparing to the non-ENSO cases. The vertical structure of MJO also affected by El Ni?o event, so the opposite direction features of the geopotential height and the zonal wind in upper and lower level troposphere for the MJO are not remarkable in the El Ni?o winter and tend to be barotropic features. El Ni?o event also has an influence on the eastward propa- gation of the MJO too. During El Ni?o winter, the eastward propagation of the MJO is not so regular and unanimous and there exists some eastward propagation, which is faster than that in non-ENSO case. Dynamic analyses suggest that positive SSTA(El Ni?o case) affects the atmospheric thickness over the equatorial Pacific and then the excited atmospheric wave-CISK mode is weakened, so that the intensity of MJO is reduced; the combining of the barotropic unstable mode in the atmosphere excited by external forcing(SSTA) and the original MJO may be an important reason for the MJO vertical structure tending to be barotropic during the El Ni?o.CHEN Xiong LI Chongyin TAN Yanke 2015Journal of Ocean University of China2015,14,1:3
9A New Cultivation-Evolution Technology of Accident Immune Function for a Petrochemical Enterprise显示文摘为在一家石油化学的企业在生产事故上开发一个有免疫力的函数的目的,预防机制的一条新耕作进化途径被分析关于有免疫力的缺乏症候群的各种各样的因素建议,由指免疫,基因算法和相关概念在药science.Accident免疫系统申请了高度危险的石油化学的企业,它由它的生产系统的安全 Organand 安全组织组成,典型地是为有免疫力的功能的进化耕作进步,新 Bimmune 房间在几层的家以后被产生屏蔽,克隆膨胀, receptored iting ,在石油化学的企业在工作事故的免疫系统组织。有有高本能的一个 B 有免疫力的房间,一个功利性的函数作为解决方案作为目标函数和有免疫力的抗体在工业为 accident-immunity.Taking 锁住事故的抗原,作者 scarried 外面为在抗原和抗体之间的本能的预言的一张计算图。Yang Zhenhong Zhang Xuhua Wang Xiangyao Wang Zhihu Liu Yank Zhang Xuan 2007China Petroleum Processing & Petrochemical Technology2007,9,1:3
10Experimental investigation of a Portevin-Le Chatelier band in Ni–Co-based superalloys in relation toγ’precipitates at 500℃显示文摘The macroscopically localized deformation behaviors of Ni–Co-based superalloys with differentγ’precipitate content were investigated at 500?C and 1×10-4 s-1 via an in situ method namely,digital image correlation(DIC).The DIC results showed that the serrated flow of the stress–strain curves was accompanied by localized deformation of the specimens.The fracture morphology was characterized mainly by transgranular fracture with numerous dimples in the lowγ’content alloy,and intergranular fracture with large fracture section in the highγ’content alloy.The Portevin–Le Chatelier(PLC)effect occurred in the investigated Ni–Co-based superalloys.Furthermore,the localized deformation of the highγ’content alloy was more severe than that of the lowγ’content alloy,and the band width was slightly larger.Moreover,for the first-time ever,a special propagation feature,namely±60?zigzag bands characterized by head-to-tail connections,was observed in the highγ’content alloy.Yanke Liu Yulong Cai Chenggang Tian Guoliang Zhang Guoming Han Shihua Fu Chuanyong Cui Qingchuan Zhang 2020Journal of Materials Science & Technology2020,47,14:2
11Chemical compositions and extinction coefficients of PM 2.5 in peri-urban of Xiamen, China, during June 2009–May 2010显示文摘Fuwang Zhang Lingling Xu Jinsheng Chen Yanke Yu Zhenchuan Niu Liqian Yin 2011Atmospheric Research2011,,:2
12Phase asynchrony between flare index and sunspot activity显示文摘In this paper,the relative phase relationship between flare index and sunspot activity(sunspot numbers and sunspot areas) is investigated.It is found that(i) the flare index and sunspot activity are asynchronous in phase space at all period scales,and the former lags behind the latter,which implies our results are supported for the integral response model;(ii) their diferent definitions and physical meanings may be a major reason for their phase asynchrony between them,and the solar flare activity favor to be related to the magnetic complex rather than magnetic strength.TANG YanKe DENG LinHua 2013Science China(Physics,Mechanics & Astronomy)2013,56,10:2
13Scoring the collective effects of SNPs: association of minor alleles with complex traits in model organisms显示文摘It has long been assumed that most parts of a genome and most genetic variations or SNPs are non-functional with regard to reproductive fitness.However,the collective effects of SNPs have yet to be examined by experimental science.We here developed a novel approach to examine the relationship between traits and the total amount of SNPs in panels of genetic reference populations.We identified the minor alleles(MAs)in each panel and the MA content(MAC)that each inbred strain carried for a set of SNPs with genotypes determined in these panels.MAC was nearly linearly linked to quantitative variations in numerous traits in model organisms,including life span,tumor susceptibility,learning and memory,sensitivity to alcohol and anti-psychotic drugs,and two correlated traits poor reproductive fitness and strong immunity.These results suggest that the collective effects of SNPs are functional and do affect reproductive fitness.YUAN DeJian ZHU ZuoBin TAN XiaoHua LIANG Jie ZENG Chen ZHANG JieGen CHEN Jun MA Long DOGAN Ayca BROCKMANN Gudrun GOLDMANN Oliver MEDINA Eva RICE Amanda D. MOYER Richard W. MAN Xian YI Ke LI YanKe LU Qing HUANG YiMin HUANG Shi 2014Science China(Life Sciences)2014,57,9:2
14Evaluation of antioxidant and immuno-enhancing activities of Purslane polysaccharides in gastric cancer rats显示文摘Yunqiao Lia Yanke Hub Shaojun Shi 2014International Journal of Biological Macromolecules2014,,68:1
15Motor Neuron Degeneration Promotes Neural Progenitor Cell Proliferation, Migration, and Neurogenesis in the Spinal Cords of Amyotrophic Lateral Sclerosis Mice显示文摘LiyingChi YanKe ChunLuo BaolinLi DavidGozal BalaramanKalyanaraman RugaoLiu 2009STEM CELLS2009,,1:1
16Effect of steroidal saponin from Yucca schidigera extract on ruminal microbes 显示文摘Wang Y McAllister T A Yanke LJ 2000J Appl Microbiol2000,88,:1
17Surgical management of osteochondritis dissecans of the knee显示文摘Erickson BJ Chalmers PN Yanke AB 0,,:1
18A new algorithm of knowledge mining in factor space显示文摘BAO Yanke RU Huiying JIN Shengjun 2014Journal of Liaoning Technical University (Natural Science)2014,33,8:1
19Contact versus immersion freezing of freely sus- pended droplets by bacterial ice nlei显示文摘Levin Z Yank S A 1983Appl Meteoro1983,22,:1
20Evaluation of corona plasma techniques for industrial applications: HPPS and DC/AC systems显示文摘WINANDS G J J YANK P NAIR S A 2005Plasma Processes and Polymers2005,2,3:1
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