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| 1 | Hydrogen Production with High Evolution Rate and High Yield by Immobilized Cells of Hydrogen-producing Bacteria Strain B49 in a Column Reactor显示文摘To improve the hydrogen evolution rate in continuous hydrogen production of a novel fermentative hydrogen producing bacteria strain B49 (AF481148 in EMBL), 4 % immobilized cells by polyvinyl alcohol boric acid method, with the addition of a small amount of calcium alginate in a column reactor obtain hydrogen yield of 2.31 mol H2/mol glucose and hydrogen evolution rate of 1435.4 ml/L culture·h respectively at medium retention time of 2.0 h with a medium containing 10g glucose/L. Moreover, as the cell density in gel beads is increased to 8%, hydrogen yield and hydrogen evolution rate for 10g glucose/L are 2.34 mol H2/mol glucose and 2912.4 ml/L culture·h respectively at medium retention time of 1.0 h, and for molasses wastewater COD of 7505.9 mg/L hydrogen production potential of 205.6 ml/g COD and hydrogen evolution rate of 2057.7 ml/L culture·h at hydraulic retention time of 0.75 h are observed. In the continuous culture pH value keeps around 3.9 by self regulating. | 任南琪 Wang Xiangjing Xiang Wensheng Lin Ming Li Jianzheng Guo Wanqian | 2002 | High Technology Letters2002，8，4： | 6 |
| 2 | Characterization of a LAL-type regulator NemR in nemadectin biosynthesis and its application for increasing nemadectin production in Streptomyces cyaneogriseus显示文摘Nemadectin, a macrocyclic lactone antibiotic, is produced by Streptomyces cyaneogriseus ssp. noncyanogenus. A methoxime derivative of nemadectin, moxdectin, has been widely used to control insect and helminth in animal health. Despite the importance of nemadectin, little attention has been paid to the regulation of nemadectin biosynthesis, which has hindered efforts to improve nemadectin production via genetic manipulation of regulatory genes. Here, we characterize the function of nemR, the cluster-situated regulatory gene encoding a LAL-family transcriptional regulator, in the nemadectin biosynthesis gene cluster of S. cyaneogriseus ssp. noncyanogenus NMWT1. NemR is shown to be essential for nemadectin production and found to directly activate the transcription of nemA1-1/A1-2/A2, nemC and nemA4/A3/E/D operons, but indirectly activate that of nemG and nemF. A highly conserved sequence 5′-TGGGGTGKATAGGGGGTA-3′(K=T/G) is verified to be essential for NemR binding.Moreover, four novel targets of NemR, including genes encoding an SsgA-like protein(TU94_12730), a methylmalonyl-CoA mutase(TU94_19950), a thioesterase of oligomycin biosynthesis(TU94_22425) and a MFS family transporter(TU94_24835)are identified. Overexpression of nemR significantly increased nemadectin production by 79.9%, in comparison with NMWT1,suggesting that nemR plays an important role in the nemadectin biosynthesis. | Chuang Li Hairong He Jiabin Wang Hui Liu Haiyan Wang Yajie Zhu Xiangjing Wang Yanyan Zhang Wensheng Xiang | 2019 | Science China(Life Sciences)2019，62，3： | 6 |
| 3 | Application of nanotechnology in a silver/graphite contact material and optimization of its physical and mechanical properties显示文摘By applying nanotechnology, a new type of silver/graphite (AgC) electrical contact was fabricated and characterized. The AgC coating powders were obtained through high-energy ball milling and reducer liquid spraying-coating method. The as-prepared powders were examined by transmission electron microscope (TEM), scanning electron microscope (SEM), and X-ray diffraction (XRD). The results show that the thickness of graphite flakes milled for 10 h is about 50-60 nm and the AgC coating powders exhibit flocculent structure with quite fine and homogeneous internal rnicropores.XRD implies that the average crystalline size of silver in coating powders is about 50 nm. The mechanical and physical properties of this newly developed AgC contact made from the above-mentioned nanocrystalline powders by traditional powder metallurgy technique were measured. Compared with its counterparts made from other techniques, the properties of this new AgC contact have been optimized. High sm-face energy and high-energy interfaces of the nanocrystalline AgC coating powders provide powerful driving force for sintering densification. Moreover, the flocculent structure of the powders is also an important factor to acquire fine density ratio. | YUHaifeng LEIJingxuan MAXueming ZHULihui LUYao XIANGJing WENGWei | 2004 | Rare Metals2004，23，1： | 5 |
| 4 | The Role of the Kurtosis Metric in Evaluating the Risk of Occupational Hearing Loss Associated with Complex Noise—Zhejiang Province,China,2010−2019显示文摘Summary What is already known about this topic?Occupational noise-induced hearing loss(NIHL)has been the second most common occupational disease in China.Noise energy is the main risk factor for occupational NIHL.Evidence shows the temporal structure of noise(as indicated by kurtosis metric)contribute to the development of NIHL.However,the role of the kurtosis metric in evaluating the risk of occupational NIHL associated with complex noise has been rarely reported. | Meibian Zhang Xiangjing Gao Wei Qiu Xin Sun Weijiang Hu | 2021 | China CDC weekly2021，3，18： | 4 |
| 5 | Release characteristics of alkali and alkaline earth metallic species during biomass pyrolysis and steam gasification process显示文摘 | JIANG L HU S XIANGJ SU S SUN L S XU K YAO Y | 2012 | Bioresour Technol2012，116，： | 1 |
| 6 | Effects ofdifferent pretreatment methods on fermentation types and dominnantbacteria for hydrogen production 显示文摘 | REN Nanqi GUO Wanqiang WANG Xiangjing | 2008 | International Journal ofHydrogen Energy2008，33，： | 1 |
| 7 | Adaptive Control of a Nonlinear Aeroelastic System显示文摘 | Li D XiangJ Guo S | 2011 | Aerospace Science and Technology2011，15，5： | 1 |
| 8 | Biohydrogen Production rate from ethanol-type fermentation of molasses in an expanded granular sludge bed (EGSB) reactor显示文摘 | GUO Wanqian REN Nanqi WANG Xiangjing | 2008 | Int J Hydrogen Energy2008，33，19： | 1 |
| 9 | Beta(2)-adrenoceptoragonistclenbuterolreducesinfarctsizeandmyocardialapoptosisaftermyo-cardialischaemia/reperfusioninanaesthetizedrats显示文摘 | ZhangQ XiangJ WangX etal | 2010 | BrJPhar-macol2010，160，6： | 1 |
| 10 | Coke deposition and characterization on titanium silicalite-1 catalyst in cyclohexanone ammoximation显示文摘 | Zhang Xiangjing Wang Yan Xin Feng | 2006 | Applied Catalysis A:General2006，307，： | 1 |
| 11 | Optimized operational parameters of a pilot scale membrane bioreactor for high - strength organic wastewater treatment 显示文摘 | Ren Nanqi Chen Zhaobo Wang Xiangjing Hu Dongxue Wang Aijie | 2005 | International Biodeterioration and Biodega''adation2005，56，4： | 1 |
| 12 | Progressont~eatingcerebrovascularischemiareperfusioninjury[J]显示文摘 | XIANGJ | | 广东医学0，，： | 1 |
| 13 | Moisture determination in hygroscopic drug substances by near infrared spectroscopy 显示文摘 | XIANGJ Z PATRICAI H MATTHEW W B | 1998 | J Pharm Biom Anal1998，17，2： | 1 |
| 14 | Reversal of P-glycoprotein-mediated multidrug resistance in vitro by milbemycin compounds in adriamycin-resistant human breast carcinoma (MCF-7/adr) cells显示文摘 | Wensheng Xiang Aili Gao Hongsheng Liang Changyu Li Jiguo Gao Qing Wang Bao Shuang Ji Zhang Yijun Yan Xiangjing Wang | 2010 | Toxicology in Vitro2010，，6： | 1 |
| 15 | Biohydrogenproduction from ethanol- type fermentation of molasses in anexpanded granular sludge bed (EGSB) reactor显示文摘 | Guo Wanqian Ren Nanqi Wang Xiangjing | 2008 | InternationalJournal of Hydrogen Energy2008，33，19： | 1 |
| 16 | Effects of different pretreatment methods on fermentation types and dominant bacteria for hydrogen production显示文摘 | REN Nanqi GUO Wanqian WANG Xiangjing | 2008 | International Journal of Hydrogen Energy2008，33，16： | 1 |
| 17 | Visual Saliency Based on Scale-Space Analysis in the Frequency Domain 显示文摘 | LI Jian Martin D L AN Xiangjing | 2013 | IEEE Transactions on Pattern Analysis and Machine Intelligence(S0162-8828)2013，35，4： | 1 |
| 18 | Biohydrogen production from ethanol-type fermentation of molasses in an expanded granular sludge bed (EGSB) reactor显示文摘 | GUO Wanqian REN Nanqi WANG Xiangjing | 2008 | International Journal of Hydrogen Energy2008，33，19： | 1 |
| 19 | Influence of gaseous end-products inhibition and nutrient limitations on the growth and hydrogen production by hydrogen-producing fermentative bacterial B49显示文摘 | Wang Xiangjing Ren Nanqi Xiang Wensheng | | 0，，06： | 1 |
| 20 | Genomic characterisation of a lentogenic Newcastle disease virus strain HX01 isolated from sick pigs in China显示文摘 | Shengli Chen Huafang Hao Xinglong Wang Enqi Du Haijin Liu Tao Yang Yangkun Liu Xiangjing Fu Peng Zhang Zengqi Yang | 2013 | Virus Genes2013，，2： | 1 |
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