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101篇 您的检索式:作者名="Qiuxiang"
    题名 作者 年代 出处 被引量
1Cassava Genetic Transformation and its Application in Breeding显示文摘张鹏(相应作者)Jia Liu Qijie Zheng Qiuxiang Ma Kranthi Kumar Gadidasu Peng Zhang 2011Journal of Integrative Plant Biology2011,53,7:16
2Determination of metastable zone and induction time of analgin for cooling crystallization显示文摘The solubility, metastable zone width, and induction time of analgin for unseeded batch cooling crystallization in ethanol–aqueous system were experimentally determined. The solubility data could be well described by the van't Hoff equation model. The metastable zone width at various cooling rates was measured, and some parameters of nucleation kinetic were calculated using the Ny'vlt theory. Furthermore, the induction period of various temperatures and supersaturation ratios was also measured. According to classical nucleation theory, some nucleation parameters and interfacial energy was calculated through the induction time(t_(ind)) data. Homogeneous nucleation tended to occur when the supersaturation is high, whereas heterogeneous nucleation was more likely to occur when the supersaturation is low.Ling Zhou Zhao Wang Meijing Zhang Mingxia Guo Shijie Xu Qiuxiang Yin 2017Chinese Journal of Chemical Engineering2017,25,3:7
3Study on hydrostatic gas lubricated non-contacting mechanical seal显示文摘李双喜 Zhu Liang Cai Jining Zhang Qiuxiang Gao Jinji 2012High Technology Letters2012,18,4:6
4Synergistic graphene/aluminum surface plasmon coupling for zinc oxide lasing improvement显示文摘免费电子的集体摆动在材料的表面上产生电浆子。耳语画廊 microcavity 有效地从它的内部墙基于全部的思考在它的表面上限制轻地。当这些二种电磁波遇见对方时,多于在耳语画廊 microcavity 与 graphene 和艾尔 nanoparticles 的单层是涂的以后, 50 褶层和阀值被减少,从单个 ZnO microrod 的刺激排出物被提高。放射激光的表演的改进被归因于与 ZnO 激子 graphene/Al 表面电浆子联合的 synergistic 精力。放射激光的特征和联合机制系统地被调查。Qiuxiang Zhu Feifei Qin Junfeng Lu Zhu Zhu Haiyan Nan Zengliang Shi Zhenhua Ni Chunxiang Xu 2017Nano Research2017,10,6:6
5Vitality and wound-age estimation in forensic pathology:review and future prospects显示文摘Determining the age of a wound is challenging in forensic pathology,but it can contribute to the reconstruction of crime scenes and lead to arrest of suspects.Forensic scholars have tended to focus on evaluating wound vitality and determining the time elapsed since the wound was sustained.Recent progress in forensic techniques,particularly high-throughput analyses,has enabled evaluation of materials at the cellular and molecular levels,as well as simultaneous assessment of multiple markers.This paper provides an update on wound-age estimation in forensic pathology,summarizes the recent literature,and considers useful additional informa-tion provided by each marker.Finally,the future prospects for estimating wound age in foren-sic practise are discussed with the hope of providing something useful for further study.Na Li Qiuxiang Du Rufeng Bai Junhong Sun 2020Forensic Sciences Research2020,5,1:5
6Plasmon enhancement for Vernier coupled single-mode lasing from ZnO/Pt hybrid microcavities显示文摘开发单个模式操作并且改进放射激光以便保证 microlasers 和 nanolasers 的实际适用性的表演是必要的。在这份报纸,有 ZnO microcomb 的改变的 nanoscaled 空气差距的二六角形的 microteeth 被用来构造联合耳语画廊洞。这被做完成没有要求任何复杂或复杂的操作完成与 nanoscale 精确放,基于游标效果放射激光的一个稳定的单个模式。光获得和相应紫外放射激光表演通过结合磅 nanoparticles 的局部性的表面电浆子极大地被改进。ZnO/Pt 混合 microcavities 完成了单个模式与更高的方面模式抑制比率和更低的阀值放射激光的紧张的七倍的改进。导致了这改进的机制详细被描述了。Yueyue Wang Feifei Qin Junfeng Lu Jitao Li Zhu Zhu Qiuxiang Zhu Ye Zhu Zengliang Shi Chunxiang Xu 2017Nano Research2017,10,10:5
7Growth and Optical Applications of Centimeter-Long ZnO Nanocombs显示文摘Ultralong ZnO nanocombs have been synthesized on silicon substrates with a high growth rate of~7μm/s using a simple“thermal evaporation and condensation”method promoted by Cu catalysts.The lengths of the ZnO nanocombs range from several millimeters to more than one centimeter and the diameters of the branches are about 300 nm.The growth mechanism of the ultralong nanocombs and the catalytic behavior of the copper are discussed.The nanocombs were readily separated and their applications as optical polarizer and grating were investigated.The results show that the ultralong ZnO nanocombs can act as effective optical components in miniaturized integrated optics systems.Ke Yu Qiuxiang Zhang Jin Wu Lijun Li Yuʼe Xu Shaohua Huang Ziqiang Zhu 2008Nano Research2008,1,3:4
8Measuring cotton water status using water-related vegetation indices at leaf and canopy levels显示文摘Drought is one of the major environmental threats in the world. In recent years, the damage from droughts to the environment and economies of some countries has been extensive, and drought monitoring has caused widespread concerns. Remote sensing has a proven ability to provide spatial and temporal measurements of surface properties, and it offers an opportunity for the quantitative assessment of drought indicators such as the vegetation water content at different levels. In this study, sites of cotton field in Shihezi, Xinjiang, Northwest China were sampled. Four classical water content parameters, namely the leaf equivalent water thickness (EWT leaf ), the fuel moisture content (FMC), the canopy equivalent water thickness (EWT canopy ) and vegetation water content (VWC) were evaluated against seven widely-used water-related vegetation indices, namely the NDII (normalized difference infrared index), NDWI 2130 (normalized difference water index), NDVI (normalized difference vegetation index), MSI (moisture stress index), SRWI (simple ratio water index), NDWI 1240 (normalized difference water index) and WI (water index), respectively. The results proved that the relationships between the water-related vegetation indices and EWT leaf were much better than that with FMC, and the relationships between vegetation indices and EWT canopy were better than that with VWC. Furthermore, comparing the significance of all seven water-related vegetation in- dices, WI and NDII proved to be the best candidates for EWT detecting at leaf and canopy levels, with R 2 of 0.262 and 0.306 for EWT leaf-WI and EWT canopy -NDII linear models, respectively. Besides, the prediction power of linear regression technique (LR) and artificial neural network (ANN) were compared using calibration and validation dataset, respectively. The results indicated that the performance of ANN as a predictive tool for water status measuring was as good as LR. The study should further our understanding of the relationships between water-related vegetation indices and water parameters.QiuXiang YI AnMing BAO Yi LUO Jin ZHAO 2012Journal of Arid Land2012,4,3:4
9Plasmon-enhanced ZnO whispering-gallery mode lasing显示文摘Chunxiang Xu Feifei Qin Qiuxiang Zhu Junfeng Lu Yueyue Wang Jitao Li Yi Lin Qiannan Cui Zengliang Shi Arumugam Gowri Manohari 2018Nano Research2018,11,6:4
10Blautia producta displays potential probiotic properties against dextran sulfate sodium-induced colitis in mice显示文摘Blautia has attracted attention because of its potential efficacy in ameliorating host energy metabolism and inflammation.This study aims to investigate the influences of Blautia producta D4 on colitis induced by dextran sulfate sodium(DSS)and to reveal the underlying mechanisms.Results showed that B.producta D4 intervention significantly relieved body weight loss,and suppressed the elevation of pro-inflammatory cytokines(including interleukin-6(IL-6),tumor necrosis factor-α(TNF-α),and interleukin-1β(IL-1β))and excessive oxidative stress(myeloperoxidease(MPO)activity,superoxide dismutase(SOD)activity,glutathione peroxidase(GSH-Px)activity,and malondialdehyde(MDA)level)in colitis mice.Moreover,the concentrations of tight junction proteins(occludin,claudin-1,and ZO-1)related to the intestinal barrier were obviously elevated,and colitis-related TLR4/NF-κB pathway activation was remarkably inhibited after B.producta D4 intervention.The intestinal microbial disorder was evidently ameliorated by increasing the relative abundance of Clostridium sensu stricto 1,Bifidobacterium,GCA-900066225,Enterorhabdus,and reducing the relative abundance of Lachnospiraceae NK4A136 group.In conclusion,oral administration of B.producta D4 could ameliorate DSS-induced colitis by suppressing inflammatory responses,maintaining the intestinal barrier,inhibiting TLR4/NF-κB pathway,and regulating intestinal microbiota balance.These results are conducive to accelerate the development of B.producta D4 as a functional probiotic for colitis.Bingyong Mao Weiling Guo Shumao Cui Qiuxiang Zhang Jianxin Zhao Xin Tang Hao Zhang 2024Food Science and Human Wellness2024,13,2:3
11Thermodynamic properties of metamizol monohydrate in pure and binary solvents at temperatures from(283.15 to 313.15) K显示文摘The thermodynamic properties of metamizol monohydrate in pure solvents(methanol,ethanol,n-propanol and isopropanol) and two binary mixed solvent systems including(methanol+ethanol) and(methanol+isopropanol) were measured from 283.15 K to 313.15 K by gravimetric method under atmospheric pressure thought as 0.1 MPa.The modi fied Apelblat equation,the CNIBS/R-K equation,the Hybrid model and the NRTL model were used to correlate the solubility of metamizol monohydrate,respectively.The results show that the solubility of metamizol monohydrate in all the tested solvents increases with the rising temperature which means that it has temperature dependence.What's more,the effects of solvent components of the binary solvent mixtures on solubility were discussed,it illustrates that the increasing of the molar fraction of methanol gives the system a greater dissolving power.Furthermore,according to the NRTL model,the enthalpy,the Gibbs energy and the entropy of the mixing process were also obtained and discussed.Mingxia Guo Qiuxiang Yin Chang Wang Yaohui Huang Yang Li Zaixiang Zhang Xia Zhang Zhao Wang Meijing Zhang Ling Zhou 2017Chinese Journal of Chemical Engineering2017,25,10:3
12Surface plasmon interference pattern on the surface of a silver-clad planar waveguide as a sub-micron lithography tool显示文摘A new sub-micron photolithography tool has been realized by utilizing the interference of surface plasmon waves(SPWs) on the near surface of a silver(Ag)-clad ultraviolet(UV) planar waveguide.A laser beam with a wavelength of 325 nm was incident into the waveguide core,and suffered a series of total internal reflections on the interfaces between the waveguide core and the cladding layers.The incident light and the reflected light induced two beams of SPWs traveling in contrary directions,which interfered with each other and formed a standing wave as a sub-micron photolithography tool.A near-field scanning optical microscope(NSOM) was employed to measure the intensity distribution of the stationary wave field of the near surface of the Ag layer of the waveguide,anastomosed with theoretical values acquired by use of finite difference time domain(FDTD) simulations.And with this sub-micron photolithography tool a SMG with a period of 79.3 nm,in good agreement with the theoretical value of 80.1 nm,was inscribed on the surface of a self-processing hybrid SiO2/ZrO2 solgel film for the first time.ZHU QiuXiang HU CanDong WANG WenJie HE Miao ZHOU Jun ZHAO LingZhi PENG ZhiXiang LI ShuTi ZHU Ning ZHANG Yong 2011Science China(Physics,Mechanics & Astronomy)2011,54,2:3
13Analysis of sensitivity and specificity:precise recognition of neutrophils during regeneration of contused skeletal muscle in rats显示文摘In this report,we applied the TissueFAXS 200 digital pathological analysis system to rapidly and accurately identify neutrophils during regeneration of contused skeletal muscle,and to provide information for follow-up studies on neutrophils to estimate wound age.Rat injury model was established,and skeletal muscle samples were obtained from the control group and contusion groups at 1,1.5,2,3,4,and 6 h,as well as at 1,3,5,and 15 d post-injury(n紏5 per group).The expression of nuclei and neutrophils was detected by hematoxylin and eosin(HE)staining and immunohistochemical(IHC)staining.A total of 20 injury site areas of 0.25mm^(2)(0.5mm0.5mm)were then randomly selected at all time points.A TissueFAXS 200 digital pathological analysis system was used to identify the positive and negative numbers.Knowledge of five professional medical workers were considered the gold standard to measure the false positive rate(FPR),false negative rate(FNR),sensitivity,specificity,and area under the curve(AUC)of receiver operating characteristic(ROC)curves.As a result,with a staining area of neutrophils from 8 μm^(2) to 15 μm^(2),the FPR was 4.28%–12.14%,the FNR was 12.42%–64.08%,the sensitivity was 35.92%–87.58%,the specificity was 87.86%–95.72%,the Youden index was 0.316–0.754,the accuracy was 82.80%–88.30%,and the AUC was 0.771–0.826.The AUC was largest when the cut-off value of the staining area was 12 mm^(2).Our results show that this software-based method is more accurate than the human eye in evaluating neutrophil infiltration.Based on the sensitivity and specificity,neutrophils can be accurately identified during regeneration of contused skeletal muscle.The TissueFAXS 200 digital pathological analysis system can also be used to optimize conditions for different cell types under various injury conditions to determine the optimal cut-off value of the staining area and provide optimal conditions for further study.Furthermore,it will provide evidence for forensic pathology cases.Jiajia Niu Guoshuai An Zhen Gu Peng Li Qiqing Liu Rufeng Bai Junhong Sun Qiuxiang Du 2022Forensic Sciences Research2022,7,2:2
14Lignin characteristics in soil profiles in different plant communities in a subtropical mixed forest显示文摘Aims Lignin is generally considered as an important indicator of soil organic carbon(SOC)storage and dynamics.to evaluate the effects of plant communities and soil depth on soil lignin is critical to better understand forest carbon cycling.Methods We compared lignin content and chemical signature in three soil depths of four major plant communities in a subtropical forest,which located in the north part of Wuling Mountains,China.Lignin was measured using CuO oxidation method.Important Findings Both lignin content and its biochemical signature in plant litter varied among communities.However,these differences were mostly no longer exist in the upper soil layers.Lignin chemistry in soils inherited some of the biochemical signature of lignin in litter,but in a diminished magnitude.these results suggest that different plant communities had similar decomposition process with vary-ing rates,caused diminished differences in lignin content and its biochemical signature.Lignin content decreased with soil depth,but the biochemical signature of lignin was not significantly dif-ferent among soil layers for all communities,which suggests that vertical movement of lignin within the soil profile is very likely a key process causing this similar biochemical signature.these results emphasized the important roles of lignin inputs and soil eluviation in shaping lignin characteristics and distribution in forest soils,which pinpoint the urgent need to consider hydrological processes in studying forest soil carbon cycling.Xinggang Wang Qiuxiang Tian Qianxi Li Chang Liao Mei He Feng Liu 2018Journal of Plant Ecology2018,11,4:2
15Molecular Isolation of the M Gene Suggests That a Conserved-Residue Conversion Induces the Formation of Bisexual Flowers in Cucumber Plants显示文摘Li Zheng Huang Sanwen Liu Shiqiang Pan Junsong Zhang Zhonghua Tao Qianyi Shi Qiuxiang Jia Zhiqi Zhang Weiwei Chen Huiming Si Longting Zhu Lihuang Cai Run 2009Genetics2009,,4:2
16Novel sol-gel material for fabrication of a long period waveguide grating filter as a precise thermometer显示文摘A new kind of organic-inorganic hybrid HfO 2/SiO 2 sol-gel material with a large thermo-optic coefficient and a wide linear tunable temperature range has been developed for fabrication of a long period waveguide grating (LPWG) filter,whose parameters were optimized and designed by using finite difference time domain (FDTD) simulations.The LPWG filter,a periodic rectangle-corrugated grating structure,was easily fabricated with soft-lithography technique.At a temperature range from 19°C to 70°C,the fabricated LPWG filter element demonstrated a high temperature sensitivity of about 6.5 nm/°C and a wide linear tunable temperature range of 51°C,so that it can be used as a precise thermometer.Our results are useful for the designs of LPWG filters for the implementation of a wide range of thermo-optic functions.WANG Xin LI XiaoChan ZHANG Tao HU CanDong ZHU QiuXiang CHEN SiHai LI Yun XU Jia HE Miao NIU QiaoLi ZHAO LingZhi LI ShuTi ZHANG Yong 2011Science China(Physics,Mechanics & Astronomy)2011,54,11:2
17Study on gas–liquid flow characteristics in stirred tank with dual-impeller based on CFD-PBM coupled model显示文摘Study on gas–liquid flow in stirred tank with two combinations of dual-impeller(six-bent-bladed turbine(6BT)+six-inclined-blade down-pumping turbine(6 ITD),the six-bent-bladed turbine(6BT)+six-inclinedblade up-pumping turbine(6ITU))was conducted using computational fluid dynamics(CFD)and population balance model(PBM)(CFD-PBM)coupled model.The local bubble size was captured by particle image velocimetry(PIV)measurement.The gas holdup,bubble size distribution and gas–liquid interfacial area were explored at different conditions through numerical simulation.The results showed that the 4 mm bubbles accounted for the largest proportion of 33%at the gas flow rates Q=0.76 m^(3)·h^(-1) and 22%at Q=1.52 m^(3)·h^(-1) for combined impeller of 6BT+6ITU,while the bubbles of 4.7 mm and 5.5 mm were the largest proportion for 6BT+6ITD combination,i.e.25%at Q=0.76 m^(3)·h^(-1) and 22%at Q=1.52 m^(3)·h^(-1),respectively,which indicated that 6BT+6ITU could reduce bubble size effectively and promote gas dispersion.In addition,the gas holdup around impellers was increased obviously with the speed compared with gas flow rate.So it was concluded that 6ITU impeller could be more conductive to the bubble dispersion with more uniform bubble size,which embodied the advantages of 6BT+6ITU combination in gas–liquid mixing.Songsong Wang Qiuxiang Bu Deyu Luan Ying Zhang Longbin Li Zhaorui Wang Wenhao Shi 2021Chinese Journal of Chemical Engineering2021,34,10:2
18Selective preparation of light aromatic hydrocarbons from catalytic fast pyrolysis vapors of coal tar asphaltene over transition metal ion modified zeolites显示文摘The catalytic cracking of coal tar asphaltene(CTA)pyrolysis vapors was carried out over transition metalion modified zeolites to promote the generation of light aromatic hydrocarbons(L-ArHs)in a pyrolysisgas chromatography/mass spectrometry(Py-GC/MS)micro-reactor system.The effects of ultra stable Y(USY),Co/USY and Mo/USY on the selectivity and yield of L-ArHs products and the extent of deoxygenation(Edeoxygenation),lightweight(Elightweight)from CTA pyrolysis volatiles were investigated.Results showed that the yields of L-ArHs are mainly controlled by the acid sites and specific surface area of the catalysts,while the deoxygenation effect is determined by theirs pore size.The Eligltweight of CTA pyrolysis volatiles over USY is 9.65%,while the Edeoxygenation of CTA pyrolysis volatiles over Mo/USY reaches 20.85%.Additionally,the modified zeolites(Mo/USY and Co/USY)exhibit better performance than USY on L-ArHs production,owing to the synergistic effect of metal ions(Mo,Co)and acid sites of USY.Compared with the non-catalytic fast pyrolysis of CTA,the total yield of L-ArHs obtained over USY(4032 mg·kg^(-1)),Co/USY(4363 mg·kg^(-1))and Mo/USY(4953 mg·kg^(-1))were increased by 27.03%,38.19%and 54.78%,respectively.Furthermore,the possible catalytic conversion mechanism of transition metal ion(Co and Mo)modified zeolites was proposed based on the distribution of products and the characterizations of catalysts.Yongqi Liu Qiuxiang Yao Ming Sun Xiaoxun Ma 2021Chinese Journal of Chemical Engineering2021,34,7:2
19Effect of Dangfei Liganning capsule(当飞利肝宁胶囊) on liver X receptor α/steroid regulatory element binding protein-1/fatty acid synthase signal pathway in rats with metabolic-associated fatty liver disease显示文摘OBJECTIVE: To study the mechanism of Dangfei Liganning capsule(当飞利肝宁胶囊) in the treatment of rats with metabolic associated fatty liver disease(MAFLD). METHODS: Totally 48 specific pathogen free SpragueDawley male rats were randomly divided into normal Group, model group, Dangfei Liganning high, moderate, and low-dose groups and Essentiale group which were fed with high fat diet for 8 weeks, and gavage and molding were carried out simultaneously. Dangfei Liganning high, middle and low-dose group were given 0.27, 0.135 and 0.0675 g·kg-1·d-1 respectively by gavage, Essentiale group was given 0.123 g·kg-1·d-1 by gavage, the same amount of distilled water was given by gavage in the normal group and the model group. The rats were weighed at the 0th week, 2nd week, 4th week, 6th week and 8th weekend respectively. The rats were sacrificed at the end of the 8th week. Serum levels of alanine aminotransferase(ALT), alanine aminotransferase(AST),triglyceride(TG), total cholesterol(CHO), high-density lipoprotein cholesterol(HDL-C), low-density lipoprotein (LDL-C), total protein(TP), albumin(Alb), globulin(GLB), total bilirubin(TBIL), direct bilirubin(DBIL), tumor necrosis factor-α(TNF-α) and interleukin-6(IL-6) were measured. The levels of liver tumor necrosis factor-α(TNF-α), interleukin-6(IL-6) and liver pathology [hematoxylin and eosin(HE) staining, oil red O staining] were detected. The expression levels of liver X receptor α(LXRα), steroid regulatory element binding protein-1(SREBP-1) and fatty acid synthase(FAS) were detected by immunohistochemistry, Western blot and reverse transcription-polymerase chain reaction reverse transcription-polymerase chain reaction. RESULTS: From the beginning to the 8th week, the growth rate of body weight in the Dangfei Liganning highdose group was slower than all other groups. There was no significant difference in ALB level in all groups(P > 0.05). Compared with the model group, the levels of ALT, AST, LDL-C, TG, CHO, TP, GLB, TBIL, DBIL, IL-6, TNF-α were significantly decreased and HDL-C were significantly increased in Dangfei Liganning high-dose group(P < 0.01, < 0.05). HE and oil red O staining showed that the fatty lesions in rat liver were alleviated, while the expressions of LXRα, SREBP-1, FAS m RNA and protein were significantly decreased(P < 0.01). CONCLUSIONS: Dangfei Liganning capsule can slow down the increase of body weight of MAFLD rats, reduce the levels of transaminase, Lipid and inflammatory factors in MAFLD rats, promote the synthesis of liver protein and bile metabolism, and improve the liver fatty lesion of MAFLD rats, among which the Dangfei Liganning highdose group is more effective. The mechanism of action may be through blocking LXR-SREBP-1-FAS signal pathway.LI Xiaoling SUN Fengxia SHANG Zimeng ZHANG Yingxue LI Jie ZHANG Qiuxiang 2022Journal of Traditional Chinese Medicine2022,42,6:2
20A synergy establishment by metal-organic framework and carbon quantum dots to enhance electrochemical water oxidation显示文摘Available online Integrating transition metal centered MOFs with conductive materials is a feasible route to enhance electron transfer efficiency of materials.Herein,a composite porous structure CQDs_(10)@NiFe-MOF-A was fabricated via introducing carbon quantum dots(CQDs)into porous NiFe-MOF.The CQDs would make partial loss of lattice in MOF during its growth,leading to the composite building block with the coexistance of crystalline region and amorphous region.The calcining treatment would produce an ultrathin protective layer as well as some lattice collapse.The synergy effect between NiFe ions effectively regulated electronic structure of metal active sites,and successful grafting of CQDs to NiFe-MOF significantly improved electrical conductivity.As expected,the catalyst exhibited outstanding OER performances with high mass activity of 91.6 A/g at overpotential of 300 mV and robust durability of 10,000 cycles in 1 mol/L KOH,which outperformed that of noble catalyst IrO_(2)of 25.2 A/g.The strategy paves a feasible and effective avenue for the non-noble metal catalysts.Qiuxiang Mou Xuan Wang Zhenhang Xu Pnur Zul Erlei Li Pingping Zhao Xinghai Liu Houbin Li Gongzhen Cheng 2022Chinese Chemical Letters2022,33,1:2
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