|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of Laser Power on the Cladding Temperature Field and the Heat Affected Zone显示文摘H13 powder is cladded on steel P20(base)by continuous CO2 laser,and the influence of technological parameters such as the laser power is analyzed.The 3-D model of synchronous powder feeding is built under Gauss heat source.The simulative results in the heat affected zone are compared with the experimental ones,and the average errors of width and depth are 15% and 4.5%,respectively.It is found that the simulative results provide basic data for investigating of laser cladding further. | LUO Fang YAO Jian hua HU Xia xia CHAI Guo-zhong | 2011 | Journal of Iron and Steel Research(International)2011,18,1: | 25 |
| 2 | Microstructure and Mechanical Properties of C/C-ZrC-SiC Composites Fabricated by Reactive Melt Infiltration with Zr,Si Mixed Powders显示文摘To meet the increasing demand for advanced materials capable of operation over 2000℃for future thermal protection systems application,C/C—ZrC—SiC composites were fabricated by reactive melt infiltration(RMI) with Zr,Si mixed powders as raw materials.The structural evolution and formation mechanism of the C/C—ZrC -SiC composites were discussed,and the mechanical property of the as-prepared material was investigated by compression test.The results showed that after the RMI process,a special structure with ZrC-SiC multi-coating as outer layer and ZrC-SiC-PyC ceramics as inner matrix was formed.ZrC and SiC rich areas were formed in the composites and on the coating surface due to the formation of Zr-Si intermetallic compounds in the RMI process.Mechanical tests showed that the average compression strength of the C/C-ZrC-SiC composites was 133.86 MPa,and the carbon fibers in the composites were not seriously damaged after the RMI process. | Xin Yang Zhean Su Qizhong Huang Xiao Fang Liyuan Chai | 2013 | Journal of Materials Science & Technology2013,29,8: | 25 |
| 3 | Comparison of FP-7 and S-2 Ahmed glaucoma valve implantation in refractory glaucoma patients for short-term follow-up显示文摘背景 Ahmed 绿内障阀门(AGV ) 被用于十年,但是关于在中国绿内障病人的 AGV 的功效没有详细报告。试图比较在中国倔强的绿内障 patients.Methods 病人降低 S-2 聚丙烯和 PF-7 硅酮 AGV 培植的功效和副作用的 intraocular 压力(IOP ) 的这研究被划分成 S-2 模型 AGV 组和 FP-7 模型 AGV 组。完全、合格的外科的成功率, IOP 的变化,使用的反绿内障药的数字和手术后的复杂并发症被记录, analyzed.Results 一般水准后续时间在二个组之间是可比较的。IOP 被减少从(37.9_ | BAI Yu-jing LI Yi-qing CHAI Fang YANG Xue-jiao ZHANG Yi-chong WEI Yan-tao HUANG Jing-jing GE Jian ZHUO Ye-hong | 2011 | Chinese Medical Journal2011,,8: | 14 |
| 4 | Simulation research on a minimum root-mean-square error rotation-fitting algorithm for gravity matching navigation显示文摘Gravity/inertial combination navigation is a leading issue in realizing passive navigation onboard a submarine. A new rotation-fitting gravity matching algorithm, based on the Terrain Contour Matching (TERCOM) algorithm, is proposed in this paper. The algorithm is based on the principle of least mean-square-error criterion, and searches for a certain matched trajectory that runs parallel to a trace indicated by an inertial navigation system on a gravity base map. A rotation is then made clockwise or counterclockwise through a certain angle around the matched trajectory to look for an optimal matched trajectory within a certain angle span range, and through weighted fitting with another eight suboptimal matched trajectories, the endpoint of the fitted trajectory is considered the optimal matched position. In analysis of the algorithm reliability and matching error, the results from simulation indicate that the optimal position can be obtained effectively in real time, and the positioning accuracy improves by 35% and up to 1.05 nautical miles using the proposed algorithm compared with using the widely employed TERCOM and SITAN methods. Current gravity-aided navigation can benefit from implementation of this new algorithm in terms of better reliability and positioning accuracy. | WANG HuBiao WANG Yong FANG Jian CHAI Hua ZHENG Hui | 2012 | Science China Earth Sciences2012,55,1: | 12 |
| 5 | Homoeologous cloning of ω-secalin gene family in a wheat 1BL/1RS translocation显示文摘Wheat 1BL/1RS translocations are widely planted in China as well as in most of the wheat producing area in the world for their good qualities of disease resistance and high yield. 1BL/1RS translocations are however poor in bread making, partially caused by a family of small monomeric proteins, ω-secalins, which are encoded by genes on 1RS. Based on published sequence of a rye ω-secalin gene we designed a pair of primers to cover the whole mature protein coding sequence. A major band could be amplified from 1BL/1RS translocations but not from euploid wheat. Using this primer set we conducted PCR amplification by using high fidelity Pfu polymerase on the genomic DNAs and cDNAs purified from a 1BL/1RS translocation Lankao 906. Sequencing analysis indicated that this gene family contains several mem- bers of 1150 bp, 1076 bp, 1075 bp, 1052 bp and 1004 bp genes, including two pseudogenes and three active genes. The gene transcripts were differentially expressed in developing seeds. | Jian Fang CHAI Xu LIU Ji Zeng JIA | 2005 | Cell Research2005,15,8: | 10 |
| 6 | Ant Colony Clustering Algorithm for Underdetermined BSS显示文摘 | HE Xuansen WANG Fang CHAI Wenbiao WU Liangmin | 2013 | Chinese Journal of Electronics2013,22,2: | 7 |
| 7 | Vertical Distribution of Soil Carbon, Nitrogen, and Phosphorus in Typical Chinese Terrestrial Ecosystems显示文摘Characterization of the vertical distribution of soil organic carbon(C), nitrogen(N), and phosphorus(P) may improve our ability to accurately estimate soil C, N, and P storage. Based on a database of 21 354 records in 74 long-term monitoring plots from 2004 to 2013 in the Chinese Ecosystem Research Network(CERN), we built fitting functions to quantify the vertical distribution of soil C, N, and P(up to 100 cm depth) in the typical Chinese terrestrial ecosystems. The decrease of soil C, N, and P content with depth can be well fitted with various mathematical functions. The fitting functions differed greatly between artificial(agriculture) and natural(desert, forest, and grassland) ecosystems, and also differed with respect to soil C, N, and P content. In both the artificial and natural ecosystems, the best fitting functions were exponential functions for C, quadratic functions for N, and quadratic functions for P. Furthermore, the stoichiometric ratios of soil C, N, and P were ranked in descending order: grassland > forest > agriculture > desert, and were also associated with climate. This study is the first to build the fitting functions for the profile distribution of soil C, N, and P in China at a national scale. Our findings provide a scientific basis to accurately assess the storage of C, N, and P in soils at a large scale, especially for the integrative analysis of historical data. | CHAI Hua YU Guirui HE Nianpeng WEN Ding LI Jie FANG Jiangping | 2015 | Chinese Geographical Science2015,25,5: | 7 |
| 8 | Microstructures and tensile properties of submerged friction stir processed AZ91 magnesium alloy显示文摘6 mm thick AZ91 casting alloy plates were subjected to normal friction stir processing(NFSP,in air)and submerged friction stir processing(SFSP,under water),and microstructures and tensile properties of the experimental materials were investigated.After FSP,the coarse microstructures in the as-cast condition are replaced by fine and equiaxed grains and the network-like eutecticβ-Mg_(17)Al_(12)phases disappear and are changed into particles pinned at the grain boundaries.SFSP results in further grain refinement in comparison with NFSP,and the average grain sizes of the NFSP and SFSP alloys are 8.4±1.3 and 2.8±0.8µm,respectively.XRD results reveal that the intensity ofβ-Mg_(17)Al_(12)diffraction peaks in the SFSP specimen decreases compared with NFSP.Due to significant grain refinement,the tensile strength and elongation of the SFSP AZ91 alloy are increased from 262 MPa and 18.9%for the NFSP material to 282 MPa and 25.4%,and the tensile strength(282 MPa)is nearly three times that of the BM(105 MPa).SFSP is an effective approach to refine the grain size and enhance the tensile properties of AZ91 casting alloy. | Fang Chai Datong Zhang Yuanyuan Li | 2015 | Journal of Magnesium and Alloys2015,3,3: | 7 |
| 9 | 分级凝胶电解质调控Zn^(2+)配位隧道助力无枝晶锌负极显示文摘本文采用离子交联的方法,制备了高离子限域和氢键增强的单宁酸改性海藻酸基复合凝胶电解质.其中,单宁酸中的酚羟基和海藻酸钠中的羧基可以分别与锌离子进行配位和螯合,有效降低Zn^(2+)溶剂化壳层周围结合水分子的活性,通过增强的离子限域效应抑制了副反应和枝晶的生成,实现了锌的均匀沉积.利用该凝胶电解质组装的Zn/NH_(4)V_(4)O_(10)全电池搁置5d后,在2 A g^(-1)下循环200圈的容量保持率高达97.25%.同时,由于单宁酸中的羰基和海藻酸钠、水分子中的羟基之间形成强分子间氢键相互作用,电池在0℃低温下的循环稳定性也得到明显提升.此外,单宁酸中的酚羟基也可与钒基离子螯合,抑制循环过程中钒的溶解,为抑制钒基正极溶解和提高钒基电池小电流密度下的循环稳定性提供了新的解决方案. | Bingyao Zhang Liping Qin Yun Fang Yizhao Chai Xuesong Xie Bingan Lu Shuquan Liang Jiang Zhou | 2022 | Science Bulletin2022,67,9: | 6 |
| 10 | Association between polymorphism rs6983267 and gastric cancer risk in Chinese population显示文摘AIM: To explore the association between single nucleotide polymorphisms (SNPs) at 8q24 and gastric cancer risk. METHODS: A case-control investigation including 212 gastric cancer patients and 377 healthy controls was conducted. The genotypes of SNPs (rs6983267, rs7008482 and rs10808555) were examined and established through polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Multivariate logistic regression models were used to evaluate the association between SNPs and gastric cancer. RESULTS: The genotype frequencies of rs6983267 in gastric cancer patients were obviously different from those in the control (P = 0.005). GT genotype of rs6983267 was associated with an increased risk of gastric cancer compared with GG genotype (adjusted odds ratio = 2.01, 95% confidence interval: 1.28-3.14). Further stratified analysis indicated that rs6983267 GT genotype facilitated the risk of gastric cancer of non-cardiac and intestinal type (OR: 2.638, 95% CI: 1.464-4.753; OR: 1.916, 95% CI: 1.166-3.150, respectively). CONCLUSION: This study demonstrates for the first time that rs6983267 is involved in susceptibility to gastric cancer, although further large-sample investigations are still needed. | Yi Guo Jing Fang Yan Liu Hai-Hui Sheng Xiao-Yan Zhang Hai-Na Chai Wei jin Ke-Hao Zhang Chang-Qing Yang Heng-jun Gao | 2011 | World Journal of Gastroenterology2011,17,13: | 5 |
| 11 | Tumor-targeting efficacy of a BF211 prodrug through hydrolysis by fibroblast activation protein-α显示文摘BF211, bufalin (BF ) 衍生物,比 BF,但是与潜在的 cardiotoxicity 展出更强壮的反癌症活动。成纤维细胞激活蛋白质 --(FAP ) 膜界限朊酶被联系癌的成纤维细胞明确地表示,因此被用于 anticancer 代理人的选择交货。在这研究,我们使用了基于 FAP 的 prodrug 策略综合 dipeptide (Z-Gly-Pro ) 结合了 BF211 prodrug 命名 BF211-03。BF211-03 是由 recombinant 人 FAP (rhFAP ) 的 hydrolyzed 并且由人的结肠癌 HCT-116 或人的胃的癌症 MGC-803 异种皮移植的 homogenates 劈开。相反, BF211-03 在血浆并且在 FAP 否定的正常纸巾的 homogenates 显示出好稳定性,例如心和肾。在有 FAP 表示的底层的 HCT-116 和 MGC-803 房间, BF211-03 显示了一在比到40褶层的有约 30 的 BF211 ,更大的 IC 50珍视的 vitro cytotoxicity 更低,而在有 FAP 的高水平的人的乳癌 MDA-MB-435 房间表达式, BF211-03 和 BF211 之间的 IC 50值差别是小的(近似4褶层)。尽管对肿瘤房间的 BF211-03 的 cytotoxicity 被化学装饰戏剧性地减少,它被 rhFAP 或肿瘤 homogenate 在 BF211-03 的劈开以后恢复。在 HCT-116 忍受肿瘤的裸体老鼠,加倍 BF211-03 的剂量,与肿瘤生长上的 BF211,引起的更少重量损失,而是出现类似的禁止的效果相比。我们的结果建议 BF211-03 在忍受肿瘤的裸体老鼠在肿瘤纸巾和展览反肿瘤活动被变换成活跃 BF211。指向 FAP 的 BF211-03 显示肿瘤选择并且可能作为一个指向的代理人有用在癌症为使用改进细胞毒素的自然产品的安全侧面治疗。 | Xiao-ping CHAI Guang-long SUN Yan-fen FANG Li-hong HU Xuan LIU Xiong-wen ZHANG | 2018 | Acta Pharmacologica Sinica2018,39,3: | 5 |
| 12 | Over-expression of aldehyde dehydrogenase-2 protects against H2O2-induced oxidative damage and apoptosis in peripheral blood mononuclear cells显示文摘 | Xiu-ying HU Qin FANG Ji-shi WANG Jian-qiong XIE Bai-sheng CHAI Fang-qiong LI Xin CUI Yuan YANG | 2011 | Acta Pharmacologica Sinica2011,32,2: | 5 |
| 13 | Consensus on the digestive endoscopic tunnel technique显示文摘With the digestive endoscopic tunnel technique(DETT), many diseases that previously would have been treated by surgery are now endoscopically curable by establishing a submucosal tunnel between the mucosa and muscularis propria(MP). Through the tunnel, endoscopic diagnosis or treatment is performed for lesions in the mucosa, in the MP, and even outside the gastrointestinal(GI) tract.At present, the tunnel technique application range covers the following:(1)Treatment of lesions originating from the mucosal layer, e.g., endoscopic submucosal tunnel dissection for oesophageal large or circular early-stage cancer or precancerosis;(2) treatment of lesions from the MP layer, per-oral endoscopic myotomy, submucosal tunnelling endoscopic resection, etc.; and(3) diagnosis and treatment of lesions outside the GI tract, such as resection of lymph nodes and benign tumour excision in the mediastinum or abdominal cavity. With the increasing number of DETTs performed worldwide, endoscopic tunnel therapeutics, which is based on DETT, has been gradually developed and optimized. However, there is not yet an expert consensus on DETT to regulate its indications, contraindications, surgical procedure, and postoperative treatment.The International DETT Alliance signed up this consensus to standardize the procedures of DETT. In this consensus, we describe the definition, mechanism,and significance of DETT, prevention of infection and concepts of DETTassociated complications, methods to establish a submucosal tunnel, and application of DETT for lesions in the mucosa, in the MP and outside the GI tract(indications and contraindications, procedures, pre-and postoperative treatments, effectiveness, complications and treatments, and a comparison between DETT and other operations). | Ning-Li Chai Hui-Kai Li En-Qiang Linghu Zhao-Shen Li Shu-Tian Zhang Yu Bao Wei-Gang Chen Philip WY Chiu Tong Dang Wei Gong Shu-Tang Han Jian-Yu Hao Shui-Xiang He Bing Hu1 Bing Hu2 Xiao-Jun Huang Yong-Hui Huang Zhen-Dong Jin Mouen A Khashab James Lau Peng Li Rui Li De-Liang Liu Hai-Feng Liu Jun Liu Xiao-Gang Liu Zhi-Guo Liu Ying-Cai Ma Gui-Yong Peng Long Rong Wei-Hong Sha Pateek Sharma Jian-Qiu Sheng Shui-Sheng Shi Dong Wan Seo Si-Yu Sun Gui-Qi Wang Wen Wang Qi Wu Hong Xu Mei-Dong Xu Ai-Ming Yang Fang Yao Hong-Gang Yu Ping-Hong Zhou Bin Zhang Xiao-Feng Zhang Ya-Qi Zhai | 2019 | World Journal of Gastroenterology2019,25,7: | 5 |
| 14 | In situ observation of C_(60)(C(COOH)_(2))_(2) interacting with living cells using fluorescence microscopy显示文摘The interactions between nanoparticles and living cells were investigated by an imaging technique of fluorescence microscopy. For this pur- pose, the C60 derivative C60(C(COOH)2)2, a thera- peutic agent for degeneration diseases of central nervous system, was synthesized, purified and characterized. Its interaction with the living cell and penetration of the cellular membrane were in situ studied using the real time imaging technique, and its potential cytotoxicity was also examined by flow cy- tometry. The results indicate that C60(C(COOH)2)2 can easily enter cells, and is mainly located in cytoplasm by fluorescein labeling. Furthermore, C60(C(COOH)2)2 can carry the molecule that cannot cross cellular membranes into cells, because fluo- rescein compound itself cannot enter the cell or ad- here to membrane. At concentrations ranging from 1×10?2 to 1×102 mg/L, C60(C(COOH)2)2 does not show any detectable cytotoxicity. | YE Chang CHEN Chunying CHEN Zhen MENG Huan XING Li JIANG Yaxin YUAN Hui XING Gengmei ZHAO Feng ZHAO Yuliang CHAI Zhifang FANG Xiaohong HAN Dong CHEN Long WANG Chen WEI Taotao | 2006 | Chinese Science Bulletin2006,51,9: | 4 |
| 15 | Numerical analysis of mode locking in multi-core photonic crystal fiber显示文摘With linearly coupled nonlinear Schrodinger equations,numerical analysis has been performed on the mode locking forming procedure of a fiber laser in the linear cavity configuration.The fiber is Yb-doped multi-core photonic crystal fiber and semiconductor saturable absorber mirror(SESAM) is adopted as the nonlinear transmission element to start mode locking.Because of the noise randomness,initial pulse would be picked out by SESAM in one or more cores which makes the multi-core mode locking quite different from single-core one.The two situations are compared and fully discussed.Mode locking in multi-core photonic crystal fiber laser can be realized only if the couple coefficient between the cores and the temporal overlap between the pulses in different cores are large enough. | FANG XiaoHui HU MingLie LI YanFeng CHAI Lu WANG QingYue | 2010 | Chinese Science Bulletin2010,55,18: | 4 |
| 16 | Enhanced mechanical property and tunable dielectric property of SiC_(f)/SiC-SiBCN composites by CVI combined with PIP显示文摘The SiBCN matrix via chemical vapor infiltration(CVI)or/and polymer infiltration pyrolysis(PIP)technologies was orderly introduced to SiC_(f)/SiC composites to optimize the mechanical property and electromagnetic(EM)shielding effectiveness simultaneously.The BN interface with the thickness of 350 nm was designed to obtain a little stronger interface bonding.The flexural strength of SiC_(f)/SiC-SiBCN composites reached 545.45±29.59 MPa thanks to the crack deflection between the CVI SiC and CVI SiBCN,as well as CVI SiBCN and PIP SiBCN matrix because of the modulus difference between them.The fracture toughness(KiC)with the value of 16.02±0.94 MPa·m^(1/2) was obtained owing to the extension of crack propagation path.The adverse effect of stronger interface bonding was eliminated by the design of matrix microstructure for SiC_(f)/SiC-SiBCN composites.The thermal conductivity in the thickness direction was 7.64 W·(m·K)^(-1) at 1200℃and the electric resistivity decreased to 1.53×10^(3) Ω·m.The tunable dielectric property was obtained with the coordination of wave-absorption CVI SiBCN matrix and impedance matching PIP SiBCN matrix,and the total shielding effectiveness(SE_(T))attained 30.01 dB.It indicates that the SiC_(f)/SiC-SiBCN composites have great potential to be applied as structural and functional materials. | Chaokun SONG Yongsheng LIU Fang YE Laifei CHENG Pengfei ZHANG Nan CHAI | 2021 | Journal of Advanced Ceramics2021,10,4: | 4 |
| 17 | Selective feeding of bay scallop Argopecten irradians on phytoplankton community revealed by HPLC analysis of phytopigments in Bohai Sea, China显示文摘Understanding the feeding selectivity on phytoplankton by shellfi sh is currently a big challenge. In order to investigate the feeding behavior of bay scallop ( Argopecten irradians ) on phytoplankton, we compared its compositions of phytopigments in digestive glands with those in the surrounding seawater, and conducted fi ve consecutive investigations between July and November 2016 in a bay scallop culture area along coast of Qinghuangdao City, northwest of the Bohai Sea, China. Phytopigments in four-size fractionated phytoplankton of seawater (micro-(20-200 μm);nano(L)-[10-20 μm];nano(S)-[2.7-10 μm], and pico-[<2.7 μm]) and digestive glands of A . irradians were examined to investigate the selective feeding of A . irradians . Results show that fucoxanthin and peridinin constituted the major part of taxonomically diagnostic carotenoids (TDCs) in the micro- and nano(L)-phytoplankton in seawater. Compared with total phytoplankton biomass of seawater (TPB, sum of the four sizes), a substantial decrease of fucoxanthin proportion to total DCs in digestive glands was observed while that of peridinin, 19′-butanoyloxyfucoxanthin, alloxanthin and 19′-hexanoyloxy-fucoxanthin showed an obvious increase when those pigments were mainly confi ned to micro-sized phytoplankton (20-200 μm). However, zeaxanthin and prasinoxanthin were mainly confi ned to nano(s)- and pico-phytoplankton, of which the proportions in digestive glands were usually lower in TPB. The contribution of lutein to total DCs in digestive glands (with an average of 7.23%) increased compared with TPB of seawater (with an average of 0.63%) during all fi ve sampling times. | JIANG Tao WANG Longhua ZHANG Fuchong FANG Xiao LU Lin ZHANG Jihong WANG Wei QU Keming CHAI Chao | 2019 | Journal of Oceanology and Limnology2019,37,5: | 4 |
| 18 | Clinical significance of pain in patients with chronic heart failure显示文摘 | GAN Qian ZHANG Feng-ru ZHOU Qing-fen DAI Li-ying LIUYe-hong CHAI Xi-chen WU Fang SHEN Wei-feng | 2012 | Chinese Medical Journal2012,,18: | 4 |
| 19 | Degradation research of protective coating on AZ91D Mg alloy components via simulated contamination显示文摘Accelerated environmental(hygrothermal)exposure experiments are performed on organic paints coated on commercial die-cast AZ91D Mg alloys to investigate the effects of contamination on blistering.Specifically,artificial human perspiration spray is used to contaminate the substrate surface.Blistering occurred only for paints that are spread on surfaces with the perspiration present.More blisters gradually form at longer test times,and the volume of blistering increases.Scanning electron microscopy indicates that blistering is initiated by contamination and/or substrate corrosion at the interface of the organic paints and the substrate.Blistering is characterized for two samples exposed to the hygrothermal environments for various times,and is found to be initially empty in the early stages.Hydrophilic chloride contaminants from the perspiration lead to in situ adhesion loss.Simultaneously,the paints volume expands,and the associated compressive stress causes it to bulge.After long-term test exposure,chloride anions corrode the substrate under the films,and MgO,Mg(OH)_(2),and Mg_(2)(OH)_(3)Cl corrosion products fill the blisters.Finally,a model of blistering evolution is discussed. | Bao-sheng Liu Ya-fei Kuang Yue-sheng Chai Da-qing Fang Min-gang Zhang Ying-hui Wei | 2016 | Journal of Magnesium and Alloys2016,4,3: | 3 |
| 20 | Smart Travel Based on Space-Time Behavior Study显示文摘In view of the significant demands and development trends of urbanization during the 12 th Five-Year Plan period, 'smart city' has attracted wide attention as an advanced city development concept in China. Under the circumstance of rapid urbanization, traffic congestion and accessibility defi ciency become major challenges to many Chinese cities, as transportation and travel are closely related to the effi ciency of a city's operation and the quality of people's life. As essential part of smart city planning and management, smart travel offers an effective behavior planning countermeasure to reduce the amount of urban traffi c and optimize the space-time distribution of travels and provides an effective technology to enrich the theories and methodologies of urban and transportation planning. Orienting at the practical demand of citizens and focusing on their travel behavior, this paper carries out a discussion on the smart travel framework based on space-time behavior study and analyzes smart travel planning and its policy route from multiple perspectives, including a prediction on travel demand, transportation planning, public policy-making, and urban planning. What's more, the paper suggests travel services for citizens based on space-time behavior analysis, such as providing personalized information, smart decision-making support, and individual behavior planning. | Chai Yanwei Shen Yue Ta Na Qian Fang | 2015 | China City Planning Review2015,24,1: | 3 |