|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Reprogramming of ovine adult fibroblasts to pluripotency via drug-inducible expression of defined factors显示文摘在 enucleated 鸡蛋的体的房间的 Reprogramming 做了多丽,绵羊,在 1996 的第一个成功地克隆的哺乳动物。然而,绵羊的机制体的房间 reprogramming 还没被探讨了。而且,绵羊胚胎的茎(ES ) 细胞仍然不是可得到的,它限制精确修改基因的绵羊的产生。在这研究,我们报导体的房间能是的那只绵羊直接 reprogrammed 到导致的 pluripotent 用定义因素(Oct4, Sox2, c-Myc, Klf4, Nanog, Lin28, SV40 大 T 和 hTERT ) 的茎(iPS ) 房间。我们的观察显示从绵羊的体的细胞比从另外的种,在 iPS,细胞被报导了的体的细胞对改编更困难。我们证明绵羊 iPS 房间表示 ES 房间标记,包括碱的磷酸酶, Oct4, Nanog, Sox2, Rex1,阶段特定的胚胎的 antigen-1, TRA-1-60, TRA-1-81 和 E-cadherin。绵羊 iPS 房间展出了正常 karyotypes 并且能在 vitro 并且在 teratomas 区分进所有三细菌层。我们的学习可以帮助在绵羊揭示体的房间 reprogramming 的机制并且提供一个平台为绵羊 ES 房间探索文化条件。而且,绵羊 iPS 房间可以直接被用来产生精确修改基因的绵羊。 | Lei Bao Lixiazi He Jijun Chen Zhao Wu Jing Liao Lmgdun Rao Jiangtao Ren Hui Li Hui Zhu Lei Qian Yijun Gu Huimin Dai Xun Xu Jinqiu Zhou Wen Wang Chun Cui Lei Xiao | 2011 | Cell Research2011，21，4： | 32 |
| 2 | Spatio-temporal responses of cropland phenophases to climate change in Northeast China显示文摘我们用 SPOT-VGT 在东北中国调查了农田 phenophases 的回答到农业热条件的变化数据从 1990 ~ 2010 收集了的规范的差别植被索引(NDVI ) ten-day-composed 时间系列数据,观察庄稼 phenophases 和气候。首先, phenological 参数例如象成长季节的长度一样的 onset-of-growth , peak-of-growth 和 end-of-growth 的日期,从弄平的 NVDI 时间系列数据集被提取并且与观察庄稼 phenophases 显示出明显的关联,出发,包括幼苗的阶段,成熟和生长时期的长度。第二,主要热条件的时间空间的趋势(10 楮潴敲 ? 祢爠浥瑯 ? 敳獮湩 ? 愠 ? 敷汬愠 ? 桴 ? 敭整牯汯杯捩污搠瑡 ? 景愠物琠浥数慲畴敲愠摮瀠敲楣楰慴楴湯映潲 ? 的第一个日期 ?? 瑳瑡潩獮愠摮琠敨 ??????????????? 岑?? | LI Zhengguo TANG Huajun YANG Peng WU Wenbin CHEN Zhongxin ZHOU Qingbo ZHANG Li ZOU Jinqiu | 2012 | Journal of Geographical Sciences2012，22，1： | 14 |
| 3 | Generation of hircine-induced pluripotent stem cells by somatic cell reprogramming显示文摘 | Jiangtao Ren Yongjun Pak Lixiazi He Lei Qian Yijun Gu Hui Li Lingjun Rao Jing Liao Chun Cui Xun Xu Jinqiu Zhou Hakchol Ri Lei Xiao | 2011 | Cell Research2011，21，5： | 10 |
| 4 | Incipient mechanical fault detection based on multifractal and MTS methods显示文摘An incipient mechanical fault detection method, combining multifractal theory and Mahalanobis-Taguchi system (MTS), which is based on statistical technology, is proposed in this paper. Multifractal features of vibration signals obtained from machine state monitoring are extracted by multifractal spectrum analysis and generalized fractal dimensions. Considering the situation of mass samples of normal mechanical running state and few fault states, the feature parameters corresponding to different mechanical running states are further optimized by a statistical method, based on which incipient faults are subsequently identifi ed and diagnosed accurately. Experimental results proved that the method combining multifractal theory and MTS can be used for incipient fault state recognition effectively during the mechanical running process, and the accuracy of fault state identifi cation is improved. | Hu Jinqiu Zhang Laibin Liang Wei Wang Zhaohui | 2009 | Petroleum Science2009，6，2： | 8 |
| 5 | Integrated transcriptomic and metabolomic analyses of a wax deficient citrus mutant exhibiting jasmonic acid-mediated defense against fungal pathogens显示文摘Naturally,resistant crop germplasms are important resources for managing the issues of agricultural product safety and environment deterioration.We found a spontaneous mutant of‘Newhall’navel orange(Citrus sinensis Osbeck)(MT)with broad-spectrum protections against fungal pathogens in the orchard,postharvest-storage,and artificial inoculation conditions.To understand the defense mechanism of MT fruit,we constructed a genome-scale metabolic network that integrated metabolome and transcriptome datasets.The coordinated transcriptomic and metabolic data were enriched in two sub-networks,showing the decrease in very long chain fatty acid(by 41.53%)and cuticular wax synthesis(by 81.34%),and increase in the synthesis of jasmonic acid(JA)(by 95.23%)and JA-induced metabolites such as 5-dimethylnobietin(by 28.37%)in MT.Furthermore,cytological and biochemical analyses confirmed that the response to fungal infection in MT was independent of wax deficiency and was correlated with the levels of jasmonates,and the expression of plant defensin gene PDF1.2.Results of exogenous application of MeJA and JA inhibitors such as propyl gallate proved that JA-mediated defense contributes to the strong tolerance against pathogens in MT.Our results indicated that jasmonate biosynthesis and signaling are stimulated by the fatty acid redirection of MT,and participate in the tolerance of pathogenic fungi. | Yizhong He Jingwen Han Runsheng Liu Yuduan Ding Jinqiu Wang Li Sun Xiaoming Yang Yunliu Zeng Weiwei Wen Juan Xu Hongming Zhang Xiang Yan Zhaoxing Chen Zuliang Gu Hong Chen Huanqing Tang Xiuxin Deng Yunjiang Cheng | 2018 | Horticulture Research2018，5，1： | 8 |
| 6 | Comparative analysis of modern and ancient buried Phoebe zhennan wood:surface color,chemical components,infrared spectroscopy,and essential oil composition显示文摘We compared the chemical components and essential oils of ancient buried Zhennan(Phoebe zhennan)wood with those in samples from living trees.After removal of the carbon layer the recovered Zhennan exhibited a dark green color,which differed from the yellow color of the living samples.Low molecular weight components(including hot-water and toluene-alcohol extractives),hemicellulose,and 1 % Na OH solubility in the recovered wood were greatly degraded.Degradation of cellulose was minor.Moreover,the ancient wood had somewhat more klason lignin than the modern wood.Fourier transform infrared(FTIR) analysis gave further evidence on the differences in chemical components.According to the GC–MS results,naphthalene derivatives were detected in the essential oils from both the modern and recovered wood.The delicate fragrance of the modern and recovered wood may be attributed to the aromatic constituents as identified by GC–MS. | Jiulong Xie Jinqiu Qi Xingyan Huang Ni Zhou Yao Hu | 2015 | Journal of Forestry Research2015，26，2： | 8 |
| 7 | Emissions of automobiles fueled with alternative fuels based on engine technology:A review显示文摘Diversi?cation of alternative fuels for automobiles is not only an actual situation,but also a development trend.Whether the alternative fuels are clean is an important issue.Emissions of automobiles fueled with natural gas(NG),methanol,ethanol,biodiesel,dimethyl ether(DME)and polyoxymethylene dimethyl ethersare investigated and reviewed based on engine technology and fuel properties.Compared to gasoline,NG/gasoline bi-fuel and NG automobiles have higher brake thermal ef?ciencies(BTE)and produce less HC,CO and PM emissions,while moreCompared to diesel,NG/diesel dual fuel automobiles have lower BTE and emit lower soot andbut higher HC and CO emissions.Methanol and ethanol blending in gasoline can obviously reduce the HC,CO and PM emissions of spark ignition(SI)automobiles.Methanol or ethanol blending in diesel may prolong the ignition delay,shorten the combustion duration and improve the BTE,resulting in lower soot emissions.However,the HC,CO andof methanol or ethanol diesel blend fuels are uncertain due to low cetane number,high latent heat of vaporization.Most biodiesel has higher viscosity,distillation temperature,cetane number and oxygen content than diesel.Soot emission of biodiesel is lower than that of diesel,whileis higher.Both DME andnot contain Ce C bonds and their blend with diesel can prohibit the formation of soot.high cetane number and low viscosity,resulting in better ignitability and spray quality respectively.shortens both the ignition delay and the combustion duration,improves the BTE,and increases the temperature in the diffusion combustion phase,leading to a higher NOx emission. | Yisong Chen Jinqiu Ma Bin Han Peng Zhang Haining Hua Hao Chen Xin Su | 2018 | Journal of Traffic and Transportation Engineering(English Edition)2018，5，4： | 5 |
| 8 | Safety prognostic technology in complex petroleum engineering systems: progress, challenges and emerging trends显示文摘Oil and gas facilities used in the petroleum industry can be considered as complex dynamic systems in that they require different types of equipment with various causal relationships among components and process variables under monitoring.As the systems grow increasingly large,high speed,automated and intelligent,the nonlinear relations among these process variables and their effects on accidents are to be fully understood for both system reliability and safety assurance.Failures that occur during the process can both cause tremendous loss to the petroleum industry and compromise product quality and affect the environment.Therefore,failures should be detected as soon as possible,and the root causes need to be identified so that corrections can be made in time to avoid further loss,which relate to the safety prognostic technology.By investigation of the relationship of accident causing factors in complex systems,new progress into diagnosis and prognostic technology from international research institutions is reviewed,and research highlights from China University of Petroleum(Beijing) in this area are also presented.By analyzing the present domestic and overseas research situations,the current problems and future directions in the fundamental research and engineering applications are proposed. | Zhang Laibin Hu Jinqiu | 2013 | Petroleum Science2013，10，4： | 5 |
| 9 | Wavelength-switchable vortex beams based on a polarization-dependent microknot resonator显示文摘We experimentally demonstrated a method of generating continuously wavelength-switchable optical vortex beams(OVBs) in an all-fiber laser. A polarization-dependent microknot resonator(MKR) functions as comb filter and accounts for the narrow linewidth(0.018 nm) of multiwavelength channels. The wavelength interval corresponds to the free spectral range of the MKR. We exploit a fused SMF–FMF(single mode fiber–few mode fiber) mode coupler to obtain broadband mode conversion and successfully achieve multiwavelength switchable OVBs. As far as we know, this is the first report about identical multiwavelength vortex beams with topological charges of 1. It has been verified that each channel of the vortex beams preserves the same orbital angular momentum(OAM) properties through their clear spiral interferograms. Multiwavelength vortex beams with identical OAM properties are desirable for multiplexing, exchanging, and routing to further improve the capacity of optical fiber transmission. | JINQIU ZHENG Ao YANG TENG WANG XIANGLONG ZENG NING CAO MEI LIU FUFEI PANG TINGYUN WANG | 2018 | Photonics Research2018，6，5： | 5 |
| 10 | Application of an Improved ISODATA Method to Pipeline Leak Detection显示文摘Increasingly serious leak problem in pipeline transportation has not only affected the operation of pipelines but also caused loss of precious resource and environmental damage. Based on the analysis of the occurrence of negative pressure waves and the unsupervised learning of pattern recognition, the Interactive Self-organizing Data Analysis Technique Algorithm (ISODATA) method was used to classify the negative pressure waves and then the states of pipelines could be determined. K_L transformation was used to eliminate the correlativity of feature parameters and to reduce the dimensionality of feature vector space to speed up calculation. Experimental results validated the accuracy and practical value of this method. | Hu Jinqiu Zhang Laibin Wang Zhaohui Liang Wei | 2007 | Petroleum Science2007，4，2： | 4 |
| 11 | Electrodeposition:Synthesis of advanced transition metal-based catalyst for hydrogen production via electrolysis of water显示文摘Developing lower-cost and higher-effective catalyst to support hydrogen(H_(2))production by electrochemical water-splitting has been recognized as a preferred strategy to drive the clean energy utilization.As a credible technology for the synthesis of functional materials,electrodeposition has attracted widespread attention,especially suitable for non-noble transition metal-based catalysts(TMCs).Recently,lots of researchers have been devoted to this hot research direction with plentiful achievements,however,a comprehensive review towards this area is still missing.Hence,we summarize the past research progress,presents the technical characteristics of electrodeposition from the viewpoint of fundamental theory and influence factors for the electrochemical deposition behavior,and introduce its application in various of TMCs with versatile nanostructures and compositions.Except a deeper and more comprehensive cognition of electrodeposition,we further discuss the catalyst’s optimized hydrogen evolution reaction(HER),oxygen evolution reaction(OER)performance as well as overall water splitting that combined with the synthetic process.Finally,we conclude the technical advantages towards electrodeposition,propose challenge and future research directions in this promising field.This timely review aims to promote a deeper understanding of effective catalysts obtained via electrodeposition strategy,and provide new guidance for the design and synthesis of future catalysts for hydrogen production. | Ruopeng Li Yun Li Peixia Yang Dan Wang Hao Xu Bo Wang Fan Meng Jinqiu Zhang Maozhong An | 2021 | Journal of Energy Chemistry2021，30，6： | 4 |
| 12 | Chinese herbal medicine compound Yi-Zhi-Hao pellet inhibits replication of influenza virus infection through activation of heme oxygenase-1显示文摘As a leading cause of respiratory disease, influenza A virus(IAV) presents a pandemic threat in annual seasonal outbreaks. Given the limitation of existing anti-influenza therapies, there remains to be a requirement for new drugs. Compound Yi-Zhi-Hao pellet(CYZH) is a famous traditional Chinese medicine(TCM) used in the clinic, whose formula has been recorded in Complication of National Standard for Traditional Chinese Medicine to treat common cold. In this study, we found that CYZH exhibited a broad-spectrum anti-influenza activity and inhibited the expression of viral RNA and proteins in vitro. Mechanistically, CYZH had no inhibitory activities against viral protein hemagglutinin and IAV RNA-dependent RNA polymerase. Instead, it induced activation of erythroid 2-related factor 2(Nrf2) and nuclear factor kappa B(NF-κB), which subsequently upregulated heme oxygenase-1(HO-1) expression.Also, CYZH protected cells from oxidative damage induced by reactive oxygen series. In conclusions,CYZH inhibits IAV replication in vitro, at least partly by activating expression of the Nrf2/HO-1 pathway. | Jinqiu Yin Linlin Ma Huiqiang Wang Haiyan Yan Jin Hu Wen Jiang Yuhuan Li | 2017 | Acta Pharmaceutica Sinica B2017，7，6： | 4 |
| 13 | The Effect of Body Pitching on Leg-Spring Behavior in Quadruped Running显示文摘In this paper we investigated how the running speed would affect the dynamics of body pitching, and whether body inertiais important for animals. Passive trotting of spring-mass model and passive bounding of spring-beam model were studied atdifferent speeds for different sets of body parameters respectively. Furthermore, different body inertias were used in bounding.We found that running speed exerts effect on leg performance by means of centrifugal force. The centrifugal force can be understoodas an enhancement to the natural frequency of the spring-mass system. The disadvantage of body pitching may beoffset by the great increase in centrifugal force at high speed. The results also reveal that body mass distribution might not be themain reason for the difference in maximal running speeds of different animals. | Qi Deng, Shigang Wang, Qinghua Liang, Jinqiu Mo School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China | 2010 | Journal of Bionic Engineering2010，7，3： | 4 |
| 14 | A NEW METHOD OF MOVING OBJECT DETECTION AND SHADOW REMOVING显示文摘This paper presents an adaptive method of objects and shadows detection in video streams. Models of background are firstly set up and adaptively updated in Hue Saturation Intensity (HSI) color space to detect motion regions. Then, detection errors are dealt with by motion continuity and velocity consistency. Finally, cast shadows are removed by the generic properties of luminance, chrominance and gradient density. Experimental results and their evaluation are presented to verify the effectiveness of this new method. | Hu Fuyuan Zhang Yanning Yao Lan Sun Jinqiu | 2007 | Journal of Electronics(China)2007，24，4： | 3 |
| 15 | Nanoscale zero-valent iron supported on biochar for the highly efficient removal of nitrobenzene显示文摘The application of nanoscale zero-valent iron (nZVI) in the remediation of contaminated groundwater or wastewater is limited due to its lack of stability, easy aggregation and iron leaching. To address this issue, nZVI was distributed on oak sawdust-derived biochar (BC) to obtain the nZVI/BC composite for the highly efficient reduction of nitrobenzene (NB). nZVI, BC and nZVI/BC were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). For nZVI/BC, nZVI particles were uniformly dispersed on BC. nZVI/BC exhibited higher removal efficiency for NB than the simple summation of bare nZVI and BC. The removal mechanism was investigated through the analyses of UV-Visible spectra, mass balance and XPS. NB was quickly adsorbed on the surface of nZVI/BC, and then gradually reduced to aniline (AN), accompanied by the oxidation of nZVI to magnetite. The effects of several reaction parameters, e.g., NB concentration, reaction pH and nZVI/BC aging time, on the removal of NB were also studied. In addition to high reactivity, the loading of nZVI on biochar significantly alleviated Fe leaching and enhanced the durability of nZVI. | Gaoling Wei Jinhua Zhang Jinqiu Luo Huajian Xue Deyin Huang Zhiyang Cheng Xinbai Jiang | 2019 | Frontiers of Environmental Science & Engineering2019，13，4： | 3 |
| 16 | Optimization for microwave-assisted direct liquefaction of bamboo residue in glycerol/methanol mixtures显示文摘Bamboo residues were liquefied in a mixture of glycerol and methanol in the presence of sulfuric acid using microwave energy. We investigated the effects of liquefaction conditions, including glycerol/methanol ratio, liquefaction temperature, and reaction time on the conversion yield. The optimal liquefaction conditions were under the temperature of 120 °C, the reaction time of 7 min, the glycerol–methanol–bamboo ratio of 8/0/2(W/W), and the microwave power of 300 W. Maximum conversion yield was 96.7 %. The liquid products were separated into two contents(water soluble part and precipitate part) by addition of a sufficient amount of water. By Fourier transform infrared(FT-IR), the water soluble content mainly contained glycerol and its derivate and carbohydrate degradation products, and the precipitate content was mainly lignin derivatives. | Jiulong Xie Jinqiu Qi Chungyun Hse Todd F.Shupe | 2015 | Journal of Forestry Research2015，26，1： | 3 |
| 17 | Effects of characteristic inhomogeneity of bamboo culm nodes on mechanical properties of bamboo fiber reinforced composite显示文摘Dendrocalamus farinosus and Phyllostachys heterocycla bamboo logs were subjected to a novel treatment process for the preparation of bamboo fiber mats(BFMs), and the obtained BFM were used to fabricate bamboo fiber reinforced composite(BFRC). We studied the mechanical properties of the BFRCs manufactured from the mats with and without bamboo nodes. The presence of nodes in BFM greatly reduced tensile strength,compressive strength, modulus of elasticity, and modulus of rupture of the BFRCs, while the BFRCs fabricated from BFMs with nodes possessed higher horizontal shear strength. Therefore, the nodes in bamboo culms were an important factor in the uniform distribution of mechanical properties, and BFMs should be homogeneously arranged to reduce the impact of nodes on the mechanical strengths of BFRCs. | Jinqiu Qi Jiulong Xie Wenji Yu Simin Chen | 2015 | Journal of Forestry Research2015，26，4： | 3 |
| 18 | Single lithium-ion channel polymer binder for stabilizing sulfur cathodes显示文摘Lithium-sulfur batteries have great potential for high-performance energy-storage devices,yet the severe diffusion of soluble polysulfide to electrolyte greatly limits their practical applications.To address the above issues;herein we design and synthesize a novel polymer binder with single lithium-ion channels allowing fast lithium-ion transport while blocking the shuttle of unnecessary polysulfide anions.In situ UV-vis spectroscopy measurements reveal that the prepared polymer binder has effective immobilization to polysulfide intermediates.As expected,the resultant sulfur cathode achieves an excellent specific capacity of 1310 mAh g^-1 at 0.2 C,high Coulombic efficiency of 99.5%at 0.5 C after 100 cycles and stable cycling performance for 300 cycles at 1 C(1 C=1675 mAg^-1).This study reports a new avenue to assemble a polymer binder with a single lithium-ion channel for solving the serious problem of energy attenuation of lithium-sulfur batteries. | Chaoqun Niu Jie Liu Tao Qian Xiaowei Shen Jinqiu Zhou Chenglin Yan | 2020 | National Science Review2020，7，2： | 3 |
| 19 | Water level variation characteristics under the impacts of extreme drought and the operation of the Three Gorges Dam显示文摘Under the influence of a climate of extreme drought and the Three Gorges Dam (TGD) operation, the water levels in the middle and lower reaches of the Yangtze River in 2006 and 2011 changed significantly compared with those in the extreme drought years of 1978 and 1986. To quantitatively analyze the characteristics of water level variations in 2006 and 2011, a new calculation method was proposed, and the daily water level and discharge from 1955-2016 were collected in this study. The findings are as follows: in 2006 and 2011, the water level in the dry season significantly increased, but that in the flood season obviously decreased compared with the levels in 1978 and 1986. Here, we described this phenomenon as “no low-water-level in dry season, no high-water-level in flood season”. Based on the calculation method, the contributions of climate variability and the Three Gorges Dam operation to water level variations in the middle and lower reaches of the Yangtze River were calculated, and the contributions indicated that climate variability was the main reason for the phenomenon of “no low-water-level in diy season, no high-water-level in flood season” instead of flood peak reduction in the flood season and drought runoff implementation in the dry season, which are both induced by TGD. | Yuanfang CHAI Yitian LI Yunping YANG Sixuan LI Wei ZHANG Jinqiu REN Haibin XIONG | 2019 | Frontiers of Earth Science2019，13，3： | 3 |
| 20 | Insight into the reaction mechanism of sulfur chains adjustable polymer cathode for high-loading lithium-organosulfur batteries显示文摘Small molecules with adjustable sulfur atoms in the confined structure were acted as precursor for the synthesis of polymer cathodes for lithium-organosulfur batteries.Among them,poly(diallyl tetrasulfide)(PDATtS)delivered a high capacity of 700 mAh g^(-1),stable capacity retention of 85%after 300 cycles,high areal capacity~4 m Ah cm^(-2) for electrode with up to 10.3 mg cm^(-2) loading.New insight into the reaction mechanism of PDATtS electrode that radicals arisen from the homolytic cleavage of S-S bond in PDATtS reacted with Li+to generate thiolates(RSLi)and insoluble lithium sulfides(Li_(2)S)or lithium disulfide(Li_(2)S_(2))was clearly verified by in-situ UV/Vis spectroscopy,nuclear magnetic resonance(NMR)studies and density-functional theory(DFT)calculations.Therefore,based on the unique reaction mechanism,problems of rapid capacity fading due to the formation of soluble polysulfide intermediates and their serious shuttle effect in conventional lithium-sulfur(Li-S)batteries was totally avoided,realizing the dendrite-free lithium sulfur batteries.This study sets new trends for avenues of further research to advance Li-S battery technologies. | Jinqiu Zhou Xi Zhou Yawen Sun Xiaowei Shen Tao Qian Chenglin Yan | 2021 | Journal of Energy Chemistry2021，30，5： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员