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| 1 | Ethylene tetramerization with a highly active and long-lifetime trinuclear diphenylphosphinoamine/Cr(III)/MAO catalyst显示文摘The synthesis and characterization of a novel trinuclear diphosphinoamine ligand 2 are reported. The ligand combined with Cr(III), activated with methylaluminoxane, lead to highly active and long-lifetime catalytic systems for the tetramerization of ethylene to form 1-octene. The effects of reaction temperature, reaction pressure, molar ratio of Al/Cr and bis(diphenylphosphino)amine/Cr on the catalytic activity and product selectivity were studied. Compared with its mononuclear analogue 1, ligand 2 showed a higher catalytic activity and longer lifetime for ethylene tetramerization in the presence of methylaluminoxane as cocatalyst. High molecular weight polyethylene was generated as a by-product with extremely broad molecular weight distributions. | JIANG Tao TAO YiQing GAO XiangLu MAO GuoLiang CHEN HongXia CAO ChenGang NING YingNan | 2012 | Chinese Science Bulletin2012，57，13： | 12 |
| 2 | A two-step lineage reprogramming strategy to generate functionally competent human hepatocytes from fibroblasts显示文摘Terminally differentiated cells can be generated by lineage reprogramming,which is,however,hindered by incomplete conversion with residual initial cell identity and partial functionality. Here, we demonstrate a new reprogramming strategy by mimicking the natural regeneration route, which permits generating expandable hepatic progenitor cells and functionally competent human hepatocytes. Fibroblasts were first induced into human hepatic progenitor-like cells (hHPLCs), which could robustly expand in vitro and efficiently engraft in vivo. Moreover, hHPLCs could be efficiently induced into mature human hepatocytes (hiHeps) in vitro, whose molecular identity highly resembles primary human hepatocytes (PHHs). Most importantly, hiHeps could be generated in large quantity and were functionally competent to replace PHHs for drug-metabolism estimation, toxicity prediction and hepatitis B virus infection modeling. Our results highlight the advantages of the progenitor stage for successful lineage reprogramming. This strategy is promising for generating other mature human cell types by lineage reprogramming. | Bingqing Xie Da Sun Yuanyuan Du Jun Jia Shicheng Sun Jun Xu Yifang Liu Chengang Xiang Sitong Chen Huangfan Xie Qiming Wang Guangya Li Xuehui LYU Hui Shen Shiyu Li Min Wu Xiaonan Zhang Yue Pu Kuanhui Xiang Weifeng Lai Peng Du Zhenghong Yuan Cheng Li Yan Shi Shichun Lu Hongkui Deng | 2019 | Cell Research2019，29，9： | 9 |
| 3 | Hepatic spheroids derived from human induced pluripotent stem cells in bio-artificial liver rescue porcine acute liver failure显示文摘Dear Editor,Acute liver failure(ALF)is a complicated disorder showing a nearly 80%mortality rate,and there is currently no effective medical solutions for ALF except liver transplantation.1 Bio-artificial liver(BAL)system is a device that consists of a bioreactor filled with hepatocytes,which could potentially rescue ALF patients by providing partial liver function until a suitable donor liver can be found or the native liver has self-regenerated. | Sitong Chen Jinglin Wang Haozhen Ren Yinan Liu Chengang Xiang Cheng Li Shichun Lu Yan Shi Hongkui Deng Xiaolei Shi | 2020 | Cell Research2020，30，1： | 9 |
| 4 | A Preliminary Study on Dynamics and Models of N,P,K Absorption for High-Yield Cotton显示文摘The field experiments were carried out to investigate the dynamics and models of N, P and K ab-sorption for the cotton plants with a lint of 3 000 kg ha-1 in Xinjiang. The main results were as follows: Thecontents of N, P2O5, K2O in cotton leaves, stems, squares and bolls decreased obviously with the time over thewhole growth duration and the falling extent was greater in high-yield cotton than in CK. Contents of N inleaves, squares and bolls, in particular in the leaves of fruit-bearing shoot was higher in high-yield cotton thanin CK. Contents of P2O5 in squares and bolls and that of K2O in stems were higher in high-yield cotton than inCK during the whole growing period. The accumulations of N, P2O5 and K2O in the cotton plants could be de-scribed with a logistic curve equation. There was the fastest nutrient uptake at about 90 d for N, 92 d for P2O5and 85 d for K2O after emergence, respectively. Total nutrient accumulation of N, P2 O5 and K2O was 385.8,244.7 and 340.3 kg ha-1 , respectively. Approximately 12.5 kg N, 8.0 kg P2O5 and 11.1 kg K2O were neededfor producing 100 kg lint with the leaves and stems under the super high yield condition of 3 000 kg ha-1 inXinjiang. | WANGKe-ru LIShao-kun CAOLian-pu SONGGuang-jie CHENGang CAOSuan-zhu | 2003 | Agricultural Sciences in China2003，2，7： | 6 |
| 5 | Growth Characteristics and Kinetics of Niobium Carbide Coating Obtained on AISI 52100 by Thermal-reactive Diffusion Technique显示文摘Niobium carbide coating was produced by thermal-reactive diffusion technique on AISI 52100 steel in salt bath at 1 123 K, 1 173 K, and 1 223 K for 1, 2, 4, and 6 hours. The salt consisted of borax, sodium fl uoride, boron carbide, and niobium pentoxide. The presence of NbC phase on the steel surface was confi rmed by X-ray diffraction analysis. Microscopic observation showed that niobium carbide coating formed on the substrate was smooth and compact. There was a distinct and fl at interface between the coating and substrate. The micro-hardness of niobium carbide coating was 2892±145HV. The thickness of coating ranged from 1.6 μm to 14μm. The forming kinetics of niobium carbide coating was revealed. Moreover, a contour diagram derived from experimental data was graphed for correct selection of process parameters. Some mathematical equations were built for predicting the coating thickness with predetermined processing temperature and time. The results showed that these mathematical equations are very practical as well as the kinetics equation. | 严绍进 王洪福 SUN Qikun HE Peng PANG Chengang WANG Huachang WANG Ailing | 2014 | Journal of Wuhan University of Technology(Materials Science)2014，29，4： | 5 |
| 6 | Effect of Alkylaluminum Activators on Ethylene Trimerization Based on 2,5-DMP/Cr(III)/TCE Catalyst System显示文摘向 1-hexene 的乙烯 trimerization 有 2,5-dimethylpyrrole (2,5-DMP ) 的催化系统 /Cr (III )/alkylaluminum/tetrachloroethane (TCE ) 被调查。在催化活动和产品选择的各种各样的 cocatalysts 的效果被讨论。结果证明 triethylaluminum (茶) , trimethylaluminum (TMA ) , tri-n-hexylaluminum (TNHA ) 和 tri-isobutylaluminum (TIBA ) 都是为向 1-hexene 的乙烯 trimerization 的有效 cocatalysts。2,5-DMP/Cr (III )/TEA/TCE 催化系统为乙烯 trimerization 负担得起最好的结果,当减少副产品的水平时形成。有在催化周期的活跃 Cr 种类的 alkylaluminum 的一些特定的相互作用模式被建议在催化活动和 1-hexene 选择解释 cocatalyst 的效果。 | Jiang, Tao Ji, Rongxin Chen, Hongxia Cao, Chengang Mao, Guoliang Ning, Yingnan | 2011 | Chinese Journal of Chemistry2011，29，6： | 3 |
| 7 | Decorative near-infrared transmission filters featuring high-efficiency and angular-insensitivity employing ID photonic crystals显示文摘We present a new scheme for visibly-opaque but near-infrared-transmitting filters involving 7 layers based on one-dimensional ternary photonic crystals, with capabilities in reaching nearly 100% transmission efficiency in the near-infrared region. Different decorative reflection colors can be created by adding additional three layers while maintaining the near-infrared transmission performance. In addition, our proposed structural colors show great angular insensitivity up to ±60° for both transverse electric and transverse magnetic polarizations, which are highly desired in various fields. The facile strategy described here involves a simple deposit!on method for the fabrication, thereby having great potential in diverse applications such as image sensors, anti-counterfeit tag, and optical measurement systems. | Chengang Ji Chenying Yang Weidong Shen Kyu-Tae Lee Yueguang Zhang Xu Liu L.Jay Guo | 2019 | Nano Research2019，12，3： | 2 |
| 8 | High-sensitivity, high-spatial-resolution distributed strain sensing based on a poly(methyl methacrylate) chirped fiber Bragg grating显示文摘In this study,a high-sensitivity,high-spatial-resolution distributed strain-sensing approach based on a poly(methyl methacrylate)chirped fiber Bragg grating(CFBG)is proposed and experimentally demonstrated.Linearly chirped FBGs in a polymer optical fiber provide an alternative to the silica fiber owing to the lower Young’s modulus,which can yield a higher stress sensitivity under the same external force.According to the spatial wavelength-encoded characteristic of the CFBG,a fully distributed strain measurement can be achieved by optical frequency-domain reflectometry.Through time-/space-resolved short-time Fourier transform,the applied force can be located by the beat frequency originated from the space-induced time delay and measured by the differential frequency offset originated from the strain-induced dispersion time delay.In a proof-of-concept experiment,a high spatial resolution of 1 mm over a gauge length of 40 mm and a strain resolution of 0.491 Hz/μεwere achieved. | Chengang Lyu Ziqi Liu Ziqiang Huo Chunfeng Ge Xin Cheng Haw-Yaw Tam | 2020 | Photonics Research2020，8，7： | 2 |
| 9 | A series of novel bisphosphinoamine ligands:Synthesis,characterization and application in ethylene tetramerization显示文摘A series of novel N-halogen-substituted-aryl bisphosphinoamine ligands were synthesized and characterized by elemental analysis,1H NMR and mass spectrometry.The combination of these ligands with Cr(Ⅲ) and activation by methylaluminoxane leads to highly active catalytic systems for the tetramerization of ethylene to form 1-octene.The catalytic activities and product selectivi-ties depend on the aryl ring substituents and the reaction conditions.We found that the location and size of the substituents are important in determining the catalytic activity and selectivity toward 1-octene.This trend is similar to that observed for their alkyl-substituted analogues. | JIANG Tao CHEN HongXia CAO ChenGang MAO GuoLiang NING YingNan | 2010 | Chinese Science Bulletin2010，55，33： | 2 |
| 10 | Structure and Luminescence Characteristics of Europium Activated Strontium Silicates Sr(Eu,Bi)SiO_3 and Sr(Eu,Bi)_2SiO_4显示文摘Sr2SiO4∶Eu 3+ ,Bi 3+ and SrSiO 3∶Eu 3+ ,Bi 3+ samples were synthesized at high temperature and high pressure. The effect of high pressure on the structure and luminescence properties of the samples were studied. As a comparison, the samples were also prepared by the method of sol-gel at high temperature and atmospheric pressure. The SrSiO 3∶Eu 3+ ,Bi 3+ prepared at atmosphere has a hexagonal phase structure; in the pressure range of 2 34-4 10 GPa, it is transformed into a pseudo-orthorhombic structure(monoclinic), and in the pressure range of 4 10-4 15 GPa, the structure change of Sr 2SiO 4∶Eu 3+ , Bi 3+ has not been observed, it maintains the monoclinic structure of the samples synthesized at an atmospheric pressure. High pressure makes the luminescence properties of the samples changed obviously. The intensity and the relative quantum luminescent efficiency decrease, the half-width increases obviously and the red shift occurs. The changes of the luminescence properties result from the pressure-induced changes of the crystal structures. | YANGJing-hai GONGJie FANHou-gang ZHANGYong-jun YANGLi-li CHENGang | 2003 | Chemical Research in Chinese Universities2003，19，4： | 2 |
| 11 | THE SMOOTHNESS AND DIMENSION OF FRACTAL INTERPOLATION FUNCTIONS显示文摘In this paper, we investigate the smoothness of non-equidistant fractal interpolation functions We obtain the Holder exponents of such fractal interpolation functions by using the technique of operator approximation. At last, We discuss the series expressiong of these functions and give a Box-counting dimension estimation of “critical” fractal interpohltion functions by using our smoothness results. | CHENGANG | 1996 | Applied Mathematics(A Journal of Chinese Universities)1996，11，4： | 2 |
| 12 | Bacterial diversity in the sediments collected from the Shikoku Basin显示文摘Diversity of bacteria was studied in deep-sea sediments from the Shikoku Basin in the Northwest Pacific Ocean by PCR, RFLP and sequence analysis of 16S rDNA and comparing with Genbank database. Based on the RFLP profile generated, 77 clones from the 16S rDNA library were divided into 27 types. Phylogenetic analysis showed that the 27 independent clones fell into four groups: Proteobac-teria (62.96%), Chloroflexi (14.81%), Planctomycetes (14.81%) and Acidobacteria (7.41%). Among all sequenced clones, 6 were related to the sulfur or sulfate metabolism bacteria and the results also demonstrated that some bacteria in deep-sea sediments had relation to matter-energy circulation. | MUChunhua BAOZhenmin CHENGang HUJingjie HAOLujiang QIZizhong LIGuangxue | 2005 | Acta Oceanologica Sinica2005，24，3： | 2 |
| 13 | Electrochemical oxygen evolution reaction efficiently boosted by selective fluoridation of FeNi3 alloy/oxide hybrid显示文摘Performance boosting of hybrid metal oxide and metal alloy catalyst is crucial to the water electrolysis for hydrogen generation. Herein, a novel concept of selective fluoridation of metal alloy/oxide hybrid is proposed to boost their catalytic performance for the oxygen evolution reaction(OER). A well-recognized OER catalyst system of FeNi3 alloy/oxide embedded in nitrogen-doped porous nanofibers(FeNiO/NCF) is employed as a proof of concept, and it is selectively fluoridated by transforming the metal oxide to metal fluoride(FeNiF/NCF). The crystal structure and surface chemical state transformation are well supported by the spectroscopic analysis and the improved electrochemical performance for OER can be well correlated to the phase and structure change. Specifically, FeNiF/NCF can drive the benchmark current density of 10 mA cm-2 at 260 mV with a Tafel slope of 67 mV dec-1, about 70 mV less than that of FeNiO/NCF.Increased catalytic kinetics, rapid charge transfer ability, high catalytic efficiency and stability are also probed by electrochemical analysis. The high surface area and roughness are found mainly generated via the high-temperature annealing for the metal alloy/metal oxide formation, and the low-temperature fluoridation process intrinsically contributes to the active structure formation. It is an efficient and universal approach to increase the catalytic performance of metal alloy/oxide for energy-relevant catalytic reactions. | Meng Zha Chengang Pei Quan Wang Guangzhi Hu Ligang Feng | 2020 | Journal of Energy Chemistry2020，29，8： | 2 |
| 14 | Promotion of the efficient metabolic maturation of human pluripotent stem cell-derived hepatocytes by correcting specification defects显示文摘 | Dongxin Zhao Song Chen Shuguang Duo Chengang Xiang Jun Jia Mina Guo Wei Lai Shichun LU Hongkui Deng | 2013 | Cell Research2013，23，1： | 2 |
| 15 | Fragmentation regularities of cephalosporin drugs by means of electrospray ionization quadrupole time-of-flight mass spectrometry(用电喷雾四极杆飞行时间质谱研究头孢类药物的质谱裂解规律)[J]显示文摘 | WANGLing(王玲) WANGYing-wu(王英武) CHENGang(陈刚) etal | | J Jilin Univ (Sci Ed)0，，： | 1 |
| 16 | Causal Links between Foreign Direet Investment and Trade in China 显示文摘 | Xiaming Liu Chengang Wang Yingqi Wei | 2001 | China Economic Review2001，，12： | 1 |
| 17 | Determinants of Bilateral Trade Flows in OECD Countries: Evidence from Gravity Panel Data Models显示文摘 | Chengang Wang Yingqi Wei Xiaming Liu | 2010 | The World Economy2010，，： | 1 |
| 18 | StudyonextractionofantioxidantmaterialfromLotusleafdietaryfiber[J]显示文摘 | CHENGang(陈钢) SUWei(苏伟) DUJiajing(杜佳善) etal | | 食品工业科技0，，： | 1 |
| 19 | Transplantation of endothelial progenitor cells transferred by vascular endothelial growth factor gene for vascular regeneration of ischemic flaps显示文摘 | Yi Chengang Xia Wei Zheng Yan | 2006 | J Surg Res2006，135，1： | 1 |
| 20 | 显示文摘 | CHENGang WENZhi-yu WENZhong-quan etal(陈刚 温志渝 温中泉 等) | | 光学学报0，，： | 1 |
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