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41篇 您的检索式:作者名="Fengjiang"
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1Segregation analysis of hepatocellular carcinoma in a moderately high-incidence area of East China显示文摘AIM: To explore the mode of inheritance of hepatocellular carcinoma (HCC) in a moderately high-incidence area of East China.METHODS: A pedigree survey was conducted in 210 families (3315 individuals) ascertained through 210 HCC probands in Haimen, Jiangsu Province. Simple segregation analysis was conducted using SEGRANB software. The probability of ascertainment (π), segregation ratio (p), and the proportion of sporadic cases (x) were estimated. Complex segregation analysis was performed using the REGTL program of S.A.G.E.Models were fitted on the data of 3212 individuals that allowed for personal HBsAg status and variable age of onset in REGTL program.RESULTS: The estimate of segregation ratio was 0.191 by SEGRANB. The probability of ascertainment was 0.0266, and the proportion of sporadic cases was 0.465. The results of complex segregation analysis showed that Mendelian autosomal recessive inheritance of a major gene that influenced the age of onset distribution of HCC, provided the best fit to the data. In the best-fitting recessive model,the frequency of the disease allele was 0.11138. HBsAg seropositive status would significantly increase the risk of developing HCC.CONCLUSION: These results suggest that at least one major gene is involved in the genetic predisposition to develop HCC at an earlier age of onset. The seropositive HBsAg status can significantly increase the risk of developing HCC, which provides strong support for the interaction between genetic and environmental risk factors.Ru-LinCai WeiMeng Hong-YanLu Wen-YaoLin FengJiang Fu-MinShen 2003World Journal of Gastroenterology2003,9,11:10
2Processing of array sonic logging data with nulti-scale STC technique显示文摘开发新信号处理技术是合乎需要的因为有效地在地上凿穿的强壮的干扰下面提取反映的波浪指导了波浪。我们为分离和反映的波浪的速度(缓慢) 分析介绍了一个多尺度的外表方法并且在地上凿穿指导了波浪声学的记载。它特殊为声学的思考调查与极端长的来源接收装置间距为最新发达的工具被设计。这个新方法是双树建筑群小浪变换(DT 享特威) 和缓慢旅行时间连贯(STC ) 的联合方法。应用程序到 3D 当模特儿的有限差别(FD ) 模仿了数据,到域数组,声音的波形信号表明了这个方法的能力适当地在从指导波浪的严重干扰下面提取反映的波浪并且在时间频率域压制噪音。Tao Guo He Fengjiang Yue Wenzheng Chen Ping 2008Petroleum Science2008,5,3:9
3Modified technique for combined liver-small bowel transplantation in pigs显示文摘AIM: As the conventional combined liver-small bowel transplantation is complicated with many postoperative complications, the aim of this study was to describe a modified technique for the combined liver-small bowel transplantation with preservation of the duodenum, partial head of pancreas and hepatic biliary system in pigs.METHODS: Composite liver/small bowel allotransplantations were undertaken in 30 long-white pigs. The graft included liver, about 3 to 4 m proximal jejunum, duodenum and partial pancreatic head. Vessels reconstructions included subhepatic vena cava-vena cava anastomosis, aorta-aorta anastomosis and portal-splenic vein anastomosis.RESULTS: Without immunosuppressive treatment, the median survival time of the animals was 6 days (2 to 12days), and about 76.9 % (20/26) of the animals survived for more than 4 days after operation.CONCLUSION: The modified technique is feasible and safe for the composite liver/small bowel transplantation with duodenum and pancreas preserved in pigs. And also this technique can simplify the operation and decrease possible postoperative complications.Zhen-YuYin Xiao-DongNi FengJiang NingLi You-ShengLi Jie-ShouLi 2003World Journal of Gastroenterology2003,9,7:6
4The spatial pattern of farming and factors influencing it during the Peiligang culture period in the middle Yellow River valley, China显示文摘The Peiligang culture(ca.7000–5000 cal BC)is the earliest Neolithic culture in the middle Yellow River valley and represents the emergence of cereal farming in the region[1].It has long been considered representative of millet farming[2],which requires a dry field,a certain amount of rainfall,and minimal crop management,but new records reveal that mixed farming of millet and rice(Oryza sp.)took place during this period[3].Therefore,it is possibleCan Wang Houyuan Lu Wanfa Gu Naiqin Wu Jianping Zhang Xinxin Zuo Fengjiang Li Daojing Wang Yajie Dong Songzhi Wang Yanfeng Liu Yingjian Bao Yayi Hu 2017Science Bulletin2017,62,23:6
5Auxiliary en-bloc liver-small bowel transplantation with partial pancreas preservation in pigs显示文摘AIM: The aim of this study was to describe an auxiliary combined liver-small bowel transplantation model with the preservation of duodenum, head of pancreas and hepatic biliary system in pigs. The technique, feasibility, security and immunosuppression were commented.METHODS- Forty outbred long-white pigs were randomized into two groups, and the auxiliary composite liver/small bowel allotransplantations were undertaken in 10 longwhite pigs in each group with the recipient liver preserved.Group A was not treated with immunosuppressive drugs while group B was treated with cyclosporine A and methylprednisolone after operation. The hemodynamic changes and amylase of body fluid (including blood, urine and abdominal drain) were analyzed.RESULTS: The average survival time of the animals was 10±1.929 d (6 to 25 d) in group A while more than 30 d in group B. The pigs could tolerate the hemodynamic fluctuation during operation and the hemodynamic parameters recovered to normal 2 h after blood reperfusion. The transient high amylase level was decreased to normal one week after operation and autopsy showed no pancreatitis.CONCLUSION: Auxiliary en-b/oc liver-small bowel transplantation with partial pancreas preservation is a feasible and safe model with simplified surgical techniques for composite liver/small bowel transplantation. This model may be used as a preclinical training model for clinical transplantation method, clinical liver-small bowel transplantation related complication research, basic research including immunosuppressive treatment, organ preservation, acute rejection, chronic rejection, immuno-tolerance and xenotransplantation.Zhen-YuYin Xiao-DongNi FengJiang NingLi You-ShengLi Xiao-MingWang Jie-ShouLi 2004World Journal of Gastroenterology2004,10,10:4
6Are polymorphisms of N-acetyltransferase genes susceptible to primary liver cancer in Luoyang, China?显示文摘AIM: To identify whether the polymorphisms of the Nacetyltransferase (NAT) genes are susceptible to primary liver cancer (PLC) in Luoyang, a PLC low-incidence area of China.METHODS: The NAT1 and NAT2 genotypes of 96 PLC cases and 173 controls were determined by PCR-RFLP.Both interaction between NAT1 or NAT2 and environmental risk factors were analyzed based on case control study.RESULTS: Compared to the control group, the frequencies of alleles NAT1*3, NAT1*4, NAT1*10, NAT1*14B and alleles NAT2*4, NAT2*6, NAT2*7 in PLC group showed no statistically significant difference (x2 = 2.61 and 4.16,respectively, both P>0.05). The frequencies of NAT1 genotypes NAT1*3/*3, NAT1*3/*4, NAT1*3/*10,NAT1*3/*14B, NAT1*4/*4, NAT1*4/*10, NAT1*4/*14B,NAT1*10/*10, NAT1*10/*14B, and NAT2 genotypes NAT2*4/*4, NAT2*4/*6, NAT2*4/*7, NAT2*6/*6,NAT2*6/*7 and NAT2*7/*7 also had no statistically significant difference between the two groups (x2 = 11.86 and 2.94respectively both, P>0.05). Neither the frequencies of rapid and slow NAT1 acetylators nor the frequencies of rapid and slow NAT2 acetylators were significantly different between the two groups (x2 = 0.598 and 0.44,respectively, both P>0.05). The interaction betweenNAT1*10 and occupational exposures was found significant with an odds ratio of 3.40 (x2 = 8.42, P = 0.004,OR 95%CI:1.03-11.22). But no interaction was found between NAT2 and any environmental risk factors.CONCLUSION: The polymorphisms of NAT1 and NAT2are not susceptible to PLC in Luoyang. Allele NAT1*10interacts with occupational exposures.Xiu-FengZhang Jian-ChaoBian Xiao-YanZhang Zhu-MeiZhang FengJiang Qi-MinWang Qi-JunWang Yan-YanCao Bo-MingTang 2005World Journal of Gastroenterology2005,11,10:3
7Effects of Zn, Zn-Al and Zn-P Additions on the Tensile Properties of Sn-Bi Solder显示文摘Effects of Zn, Zn-Al and Zn-P additions on melting points, microstructures, tensile properties, and oxidation behaviors of Sn-40 Bi lead-free solder were investigated. The experimental results show that the addition of these three types of elements can refine the microstructures and improve the ultimate tensile strength(UTS) of solder alloys. The fractographic analysis illustrates that ductile fracture is the dominant failure mode in tensile tests of Sn-40Bi-2Zn(SBZ)and Sn-40Bi-2Zn-0.005Al(SBZA) specimens, while brittle fracture is the controlled manner in Sn-40Bi-2Zn-0.005P(SBZP) and Sn-58 Bi solders. XPS analysis indicates that trace amounts of both Al and P additives in solder can improve the antioxidant capacity, whereas only the additive of Al in solder can reduce the thickness of oxidation film.Xiaojing Wang Yanlai Wang Fengjiang Wang Ning Liu Jianxin Wang 2014Acta Metallurgica Sinica(English Letters)2014,27,6:3
8Conductive photo-thermal responsive bifunctional hydrogel system with self-actuating and self-monitoring abilities显示文摘Despite enormous efforts in actuators,most researches are only limited to various actuation behaviors and demonstrations of soft materials.It has not yet been reported to capture and monitor its movement status in an invisible environment.Therefore,it is of great significance to develop a self-sensing and self-actuating dual-function hydrogel actuator system to realize real-time monitoring.Here,we report a bifunctional hydrogel system with self-actuating and self-monitoring abilities,which combines the functions of photothermal actuation and electrical resistance sensing into a single material.The bilayer tough conductive hydrogel synthesized by unconventional complementary concentration recombination and cryogenic freezing technique presents a dense conductive network and high-porosity structure,achieving high toughness at 190.3 kPa of tensile strength,high stretchability(164.3%strain),and the toughness dramatically(1,471.4 kJ·m^(−3)).The working mechanism of the monitoring and self-sensing system is accomplished through the integrated monitoring device of surface temperature–bending angle–electron current,to solve the problem of not apperceiving actuator motion state when encountering obstacles in an invisible environment.We demonstrated for the first time a photothermal actuator’s motion of a football player and goalkeeper to finish the penalty and a soft actuator hand,which can achieve the action of sticking to grab and release under photo-thermal actuation.When connected to the control closed circuit,the actuator realized closed-loop monitoring and sensing feedback.The development of bifunctional hydrogel systems may bring new opportunities and ideas in the fields of material science,circuit technology,sensors,and mechanical engineering.Neng Chen Yang Zhou Yinping Liu Yuanyuan Mi Sisi Zhao Wang Yang Sai Che Hongchen liu FengJiang Chen Chong Xu Guang Ma Xue Peng Yongfeng Li 2022Nano Research2022,15,8:3
9Study on 3D simulation of wave fields in acoustic reflection image logging显示文摘The borehole acoustic reflection imaging logging is a newly developed acoustic logging method that has attracted many interests. These converted and reflected waves for imaging are usually mixed up with borehole guided waves and therefore difficult to be clearly identified. To improve the downhole tool design and develop more sophisticate data processing and interpretation algorithms,studies on precisely numerical modeling of the wave fields in the acoustic reflection imaging logging are neces-sary and critical. This paper developed a parallelized scheme of 3D finite difference (3DFD) with non-uniform staggered grid and PML absorbing boundary to simulate the acoustic wave fields in isotropic and anisotropic formations. Applications of this scheme to the typical cases of isotropic and anisot-ropic formations and comparison with the results from published analytical solutions have demon-strated the validation and efficiency of the scheme. Higher accuracy and lower computation cost (3.5 times faster than the conventional schemes) have been achieved with this scheme for modeling such a complex wave fields of 60 dB dynamic range with higher frequency (10 kHz). This simulating program provides a quantitative analytical means for studying acoustic reflection imaging tool and development of the data processing and interpretation methods.TAO Guo,HE FengJiang,WANG Bing,WANG Hua & CHEN Ping State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum,Beijing 102249,China 2008Science China Earth Sciences2008,51,S2:2
10Generalized Switched-Capacitor Step-up Multilevel Inverter Employing Single DC Source显示文摘In this paper,a new generalized step-up multilevel DC-AC converter is proposed,which is suitable for applications with low-voltage input sources,such as photovoltaic power generation and electric vehicles.This inverter can achieve a high voltage gain by controlling the series-parallel conversion of the DC power supply and capacitors.Only one DC voltage source and a few power devices are employed.The maximum output voltage and the number of output levels can be further increased through the switched-capacitor unit’s extension and the submodule cascaded extension.Moreover,the capacitor voltages are self-balanced without complicated voltage control circuits.The complementary operating mechanism between each pair of switches simplifies the modulation algorithm.The inductiveload ability is fully taken into account in the proposed inverter.Additionally,a remarkable characteristic of the inverter is that the charging and discharging states among different capacitors are synchronous,which reduces the voltage ripple of the frontend capacitors.The circuit structure,the working principle,the modulation strategy,the capacitors and losses analysis are presented in detail.Afterwards,the advantages of the proposed inverter are analyzed by comparing with other recently proposed inverters.Finally,the steady-state and dynamic performance of the proposed inverter is verified and validated by simulation and experiment.Yaoqiang Wang Kaige Wang Gen Li Fengjiang Wu Kewen Wang Jun Liang 2022CSEE Journal of Power and Energy Systems2022,8,2:2
11Controllable generation of large-scale highly regular gratings on Si films显示文摘The application of femtosecond laser-induced periodic surface texturing has significant potential in medicine,optics,tribology,and biology,among other areas.However,when irradiated by a large intense laser spot,the periodic structures usually exhibit an uncontrollable regularity,forming bifurcated patterns,thus limiting their widespread application.Irregularity originates from numerous independent branching seeds.The usual solution to this problem is to utilize the quasi-direct laser writing technique,that is,by limiting the laser beam size(diameter of<10 wavelengths)and scanning the beam or samples using 2D translation stages.Herein,we demonstrate an optical localization-induced nonlinear competition mechanism to solve this problem,which occurs at a fluence nearly one order of magnitude below the ablation threshold.Owing to the low intrinsic absorption of silicon and ultralow applied fluence,this mechanism ensures the self-selection of a single seed to initiate an array of bifurcated-free gratings under stationary irradiation with a large laser spot(diameter>100 wavelengths).Surprisingly,some unconventional complex patterns,such as radial,annular,and spiral gratings,can also be easily produced by structured light fields with unprecedented regularity.Their diameters reach up to>500μm.Moreover,we can artificially control the initial seeding structure to further improve the regularity of the gratings,defined by dispersion in the ripple orientation angle in their 2D Fourier transform.As a result,the regularity in our experiments produced by a large laser spot is even higher than that scanned by a tiny beam.Controllable and highly regular ripples are beneficial to the structural coloring effects because they arise from the light diffraction by subwavelength gratings.Jiao Geng Xiaoguo Fang Lei Zhang Guangnan Yao Liye Xu Fengjiang Liu Weiwei Tang Liping Shi Min Qiu 2021Light(Advanced Manufacturing)2021,2,3:2
12Population dynamics and habitat use of the Black-necked Crane (Grus nigricollis) in the Yarlung Tsangpo River basin, Tibet, China显示文摘Background:The Black-necked Crane (Grus nigricollis)is an internationally threatened crane living on the plateau, mainly in winter, in the Yarlung Tsangpo River basin in Tibet,western China. In the past five years,some economic development projects have been conducted in this area,posing potential threats to the wintering populations of the cranes and their habitats. Therefore, the current population dynamics of wintering Black-necked Cranes and habitat suitability in the Yarlung Tsangpo River basin were investigated. Methods: Twenty counties were surveyed using the line transect method in December 2017 and January 2018, and we recorded the location,flock size,number of individuals,habitat types and presence of human disturbance in which they occurred.We compared the results from the middle wintering period in this survey with those from 2014. Results: The highest number of cranes recorded was 8291,and the results showed that the cranes were mainly distributed in Lhaze, Namling, Samzhubze, and Lhunzub.A total of 577 and 495 flocks were recorded in the early and middle wintering periods, respectively. In the early wintering period,there were signi ficant differences in the number of individuals across the di fferent habitats,with crop stubble land and plowed land representing more than 30% of the total habitat utilization.In the middle wintering period, there were also signi ficant differences in the number of individuals, and the utilization of crop stubble land represented over 60% of the total. Conclusions: Wintering Black-necked Cranes mainly fed on spilled grains in stubble habitat after harvest. In the middle wintering period, some of the farmlands were plowed and irrigated,which resulted in food shortages in these areas,and the cranes tended to gather in mixed flocks of large size instead of as a single family.There were still considerable regional wintering populations decreases in Quxu,Nedong,and Sakya in 2018 compared with 2014,and these decreases were mainly due to some recently emerging threats,including farmlands being converted into areas of greenhouse cultivation,highway and railway construction, river dredging,the rapid development of the manufacturing and mining industries,and the lack of protection of important wintering sites.Ru Jia Tian Ma Fengjiang Zhang Guogang Zhang Dongping Liu Jun Lu 2019Avian Research2019,10,3:2
13Connexin 43 Reverses Malignant Phenotypes of Glioma Stem Cells by Modulating E‐Cadherin显示文摘Shi‐CangYu Hua‐LiangXiao Xue‐FengJiang Qing‐LiangWang YanLi Xiao‐JunYang Yi‐FangPing Jiang JieDuan Jian‐YongJiang Xian‐ZongYe Sen‐LinXu Yang‐HongXin Xiao‐HongYao Jian‐HongChen Wei‐HuaChu WeiSun BingWang Ji MingWang XiaZhang Xiu‐WuBian 2012STEM CELLS2012,,2:1
14Diffusion bonding of copper alloy to stainless steel with Ni and Cu interlayer 显示文摘 Wang Fengjiang Li Xiaoquan 2000Transactions of Nonferrous Metals Society of China (English Edition)2000,10,1:1
15Micro-scale opto-thermo-mechanical actuation in the dry adhesive regime显示文摘Realizing optical manipulation of microscopic objects is crucial in the research fields of life science,condensed matter physics,and physical chemistry.In non-liquid environments,this task is commonly regarded as difficult due to strong adhesive surface force(~µN)attached to solid interfaces that makes tiny optical driven force(~pN)insignificant.Here,by recognizing the microscopic interaction mechanism between friction force—the parallel component of surface force on a contact surface—and thermoelastic waves induced by pulsed optical absorption,we establish a general principle enabling the actuation of micro-objects on dry frictional surfaces based on the opto-thermo-mechanical effects.Theoretically,we predict that nanosecond pulsed optical absorption with mW-scale peak power is sufficient to tameµN-scale friction force.Experimentally,we demonstrate the two-dimensional spiral motion of gold plates on micro-fibers driven by nanosecond laser pulses,and reveal the rules of motion control.Our results pave the way for the future development of micro-scale actuators in non-liquid environments.Weiwei Tang Wei Lyu Jinsheng Lu Fengjiang Liu Jiyong Wang Wei Yan Min Qiu 2021Light(Science & Applications)2021,10,10:1
16Diffusion bonding of copper alloy to stainless steel with Ni and Cu interlayer显示文摘Yu Zhishui Wang Fengjiang 2000Transactions of Nonferrous Metals Society of China (English Edition)2000,10,1:1
17Multireflected enhancement of fourth harmonic DUV laser generation at 266 nm显示文摘Zhuang Fengjiang Ye Ning Huang Chenghui 0,,24:1
18Gypsum (CaSO4 2H/O) Scaling on Polybenzimidazole and Cellulose Acetate Hollow Fiber Membranes under Forward Osmosis显示文摘SiCong Chen JinCai Su FengJiang Fu 2013Membranes2013,26,3:1
19纳滤-膜蒸馏集成工艺用于超纯水生产的中试研究显示文摘电子级超纯水在半导体制造中用量很大,目前超纯水生产以“预处理+反渗透(RO)+电除盐(EDI)”为主单元的长流程工艺为主。在此基础上,提出了一种以中空纤维纳滤(HFNF)和平板真空多效膜蒸馏(VMD)替代EDI之前所有工艺段的短流程生产工艺,把超纯水生产工艺从原长流程的12个以上工艺段减少至6个以下。研究结果表明,以HFNF+VMD作预处理的产水电导率低于4μS/cm,完全满足EDI的进水要求;在出水水质不变的情况下,短流程生产工艺减少了工艺段,超纯水产水量提高了44.6%,进而可以降低设备投资,而且使维护变得简单且经济;更重要的是短流程生产工艺故障风险位点减少,超纯水工艺和水质更加稳定。高永钢 解保雷 苏成龙 史志伟 FU Fengjiang 2023工业水处理2023,43,6:1
20Copolymer syntheses of mesoporous silica with periodic 50 to 300 Angstorm pores显示文摘ZHAODong - yuan FENGJiang - lin 1998Science1998,279,:1
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