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36篇 您的检索式:作者名="Yu Jiangang"
    题名 作者 年代 出处 被引量
1Phytoplankton community structure and environmental parameters in aquaculture areas of Daya Bay,South China Sea显示文摘Environmental characteristics and phytoplankton community structure were investigated in two aquaculture areas in Dapeng Cove of Daya Bay,South China Sea,between April 2005 and June 2006.Phytoplankton abundance ranged between 5.0 and 8877.5 cells/mL,with an average of 751.8 cells/mL.The seasonal cycle of phytoplankton were demonstrated by frequent oscillations,with recurrent high abundances from late spring to autumn and a peak stage in late winter.Diatoms were the predominant phytoplankton group,accounting for 93.21%of the total abundance.The next most abundant group was the dinoflagellates,which made up only 1.24%of total abundance. High concentrations of Alexandrium tamarense(Lebour) Balech with a maximum of 603.0 cells/mL were firstly recorded in this area known for high rates of paralytic shellfish poisoning(PSP) contamination.Temperatures and salinities were within the suitable values for the growth of phytoplankton,and were important in phytoplankton seasonal fluctuations.The operation of the Daya Bay Nuclear Power Station(DNPS) exerts influences on the phytoplankton community and resulted in the high abundances of toxic dinoflagellate species during the winter months.Dissolved inorganic nitrogen(DIN) and dissolved silicate(DSi) were suffcient,and rarely limited for the growth of phytoplankton.Dissolved inorganic phosphorus(DIP) was the most necessary element for phytoplankton growth. The enriched environments accelerated the growth of small diatoms,and made for the shift in predominant species from large diatom Rhizosolenia spp.to chain-forming diatoms such as Skeletonema costatum,Pseudo-nitzschia spp.and Thalassiosira subtilis.WANG Zhaohui ZHAO Jiangang ZHANG Yujuan CAO Yu 2009Journal of Environmental Sciences2009,21,9:44
2Chinese Stroke Association guidelines for clinical management of cerebrovascular disorders: executive summary and 2019 update of clinical management of cerebral venous sinus thrombosis显示文摘Aim Cerebral venous sinus thrombosis(CVST)is a less common cerebrovascular disease that predominantly affects young patients.The incidence of CVST is 2-5/10000000/year,accounting for 0.5%-1%of all stroke.To reduce mortality and morbidity associated with CVST,Chinese Stroke Association commissioned the authors to write the current guideline on the management of CVST.Methods PubMed(MEDLINE),CNKI and Wanfang database were searched for studies related to CVST from 1 January 1990 to 31 July 2019.Data were synthesised by evidence tables.Each recommendation was fully discussed by the writing group members and reviewed by Chinese Stroke Association Stroke Fellow Committees.Levels of evidence grading algorithm of Chinese Stroke Association was used to grade each recommendation.results This guideline mainly focuses on the diagnostic evaluation,therapeutic strategies and secondary prevention of CVST.CT/CTV and MRI/MRV are recommended in the initial imaging evaluation of patients with suspected CVST.Anticoagulation therapy with low-molecular weight heparin should be initiated in patients with CVST immediately.After the acute stage,warfarin is recommended for 3-6 months to prevent the recurrence of CVST and other venous thromboembolic events.Conclusions The guideline summarises the current evidence regarding the management of CVST,and provides references for diagnosis,treatment and secondary prevention of CVST in China.Yuhua Fan Jian Yu Hongbing Chen Jian Zhang Jiangang Duan Dapeng Mo Wenhao Zhu Bo Wang Fubing Ouyang Yicong Chen Linfang Lan Jinsheng Zeng Chinese Stroke Association Stroke Council CVST Guideline Writing Committee 2020Stroke & Vascular Neurology2020,5,2:14
3Comparison of different cooling methods for extending shelf life of postharvest broccoli显示文摘This study aimed to investigate and compare the effects of vacuum cooling,cooling water and cold room methods on the shelf life of broccoli.The experiments were divided into four groups:vacuum cooling(A),ice-water cooling(B),cold room cooling(C)and control.The cooling rate and changes of weight loss,respiratory rate,chlorophyll,vitamin C,reducing sugar content and sensory properties were measured at intervals of five days.The results indicated that vacuum cooling was the most effective method for extending the shelf life of postharvest broccoli in terms of cooling rate,respiration rate,chlorophyll,vitamin C,reducing sugar and sensory properties.Moreover,spraying the broccoli with water during the vacuum cooling process resulted in a significant reduction in weight compared with the other two cooling methods and did not reduce the quality of the broccoli.Consequently,vacuum cooling treatment can be applied to broccoli after harvest in the field to maintain quality during transportation and storage.Additionally,the application of water spraying during vacuum cooling can considerably reduce the negative influence caused by vacuum cooling.Ding Tian Liu Fen Ling Jiangang Kang Mengli Yu Jingfen Ye Xingqian Liu DongHong 2016International Journal of Agricultural and Biological Engineering2016,9,6:5
4Geochemical baseline determination and contamination of heavy metals in the urban topsoil of Fuxin City,China显示文摘Urban topsoil is the most frequent interface between human society and natural environment.The accumulation of heavy metals in the urban topsoil has a direct effect on residents'life and health.The geochemical baseline of heavy metals is an objective description of the general level of heavy metals in the urban topsoil.Meanwhile,the determination of geochemical baseline is necessary for regional environmental management,especially in coal cities prone to heavy metal pollution.Heavy metal pollution has become an environmental problem in Fuxin City,China for a long time.To establish the geochemical baseline of heavy metals in the topsoil of Fuxin City and to evaluate the ecological risk of the topsoil,we collected 75 topsoil samples(0–20 cm)and analyzed the concentrations of Cu,Ni,Zn,Pb,Cr,Cd,Hg and As through X-ray fluorescence spectrometry,atomic absorption spectrometry and inductively coupled plasma optical emission spectrometry.We determined the geochemical baseline of heavy metals in the topsoil of Fuxin City by using iteration removal,box-whisker plot,cumulative frequency curve and reference metal normalization;evaluated the contamination risk and ecological risk of the topsoil by using the baseline factor index,Nemerow index and Hakanson potential ecological risk index;and identified the source category of heavy metals in the topsoil by using a pedigree clustering heatmap.Results showed that the geochemical baseline values were 42.86,89.34,92.23,60.55,145.21,0.09,0.08 and 4.17 mg/kg for Cu,Ni,Zn,Pb,Cr,Cd,Hg and As,respectively.The results of Nemerow index and Hakanson potential ecological risk index indicated that the urban topsoil in the study area was slightly contaminated and suffering low potential ecological risk.The main contaminated areas dominated in the middle part and northeast part of the study area,especially in the western Haizhou Strip Mine.The result of baseline factor index indicated that Hg and Cd were the major pollution elements.Using a pedigree clustering heatmap,we divided the sources of these heavy metals into three types:type I for Ni and Cr,largely represented the enrichment of heavy metals from natural sources;type II for Cu,Pb,Zn,Cd and As,mainly represented the enrichment of heavy metals from anthropogenic sources;and type III for Hg,represented the form of both natural and anthropogenic inputs.ZHANG Hua YU Miao XU Hongjia WEN Huan FAN Haiyan WANG Tianyi LIU Jiangang 2020Journal of Arid Land2020,12,6:5
5Mapping and validation of a dominant salt tolerance gene in the cultivated soybean(Glycine max) variety Tiefeng 8显示文摘Salt is an abiotic stress factor that strongly affects soybean growth and production. A single dominant gene has been shown to confer salt tolerance in the soybean cultivar Tiefeng 8.The objective of the present study was to genetically map the salt-tolerance gene in an F2:3population and a recombinant inbred line(RIL) population derived from a cross between two cultivated soybeans, Tiefeng 8(tolerant) and 85-140(sensitive). The F2:3families and RILs were treated with 200 mmol L-1Na Cl to evaluate salt tolerance. The F2:3population showed 1(42 tolerant): 2(132 segregating): 1(65 sensitive) segregation, indicating a single dominant gene for salt tolerance in Tiefeng 8. A sequence-characterized amplified region(SCAR) marker from a previously identified random amplified polymorphic DNA(RAPD)marker and four insertion/deletion polymorphism(In Del) markers were developed within the mapping region. Using these markers along with SSR markers, the salt-tolerance gene was mapped within 209 kb flanked by SCAR marker QS08064 and SSR marker Barcsoyssr_3_1301 on chromosome 3. Three markers that cosegregated with the salt tolerance gene and SCAR marker QS08064 were used to genotype 35 tolerant and 23 sensitive soybean accessions. These markers showed selection efficiencies of 76.2% to94.2%. The results indicate that these markers will be useful for marker-assisted breeding and facilitating map-based cloning of the salt tolerance gene in soybean.Rongxia Guan Jiangang Chen Jinghan Jiang Guangyu Liu Ying Liu Lei Tian Lili Yu Ruzhen Chang Li-juan Qiu 2014The Crop Journal2014,2,6:5
6Profiling and bioinformatics analysis of differentially expressed circular RNAs in human intervertebral disc degeneration显示文摘The functional changes of nucleus pulposus (NP) cells are considered to be the initiating factors of intervertebral disc degeneration (IDD), and the differentially expressed circRNAs in NP cells may play an important role in the process of IDD. To identify circular RNAs (circRNAs) associated with human IDD, we isolated the NP cells from human degenerated and non-degenerated intervertebral disc and identified NP cells by microscopy and cell proliferation. CircRNA microarray expression profiles were obtained from NP cells of degenerated and non-degenerated intervertebral disc and further validated by quantitative reverse transcription PCR (qRTPCR). The expression data were analyzed by bioinformatics. Microarray analysis identified 7294 circRNAs differentially expressed in degenerated human IDD NP cells. Among them, 3724 circRNAs were up-regulated and 3570 circRNAs were down-regulated by more than 2 folds. After validating by qRT-PCR, we predicted the possible miRNAs of the top dysregulated circRNAs using TargetScan, and miRanda. Furthermore, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that the most modulated circRNAs regulate the viability, degradation, apoptosis and oxidative stress in NP cells, and the possible mechanism underlying IDD was discussed. These results revealed that circRNAs may play a role in IDD and might be a promisi ng can didate molecular target for gene therapy.Shunmin Wang Jingchuan Sun Haisong Yang Weiguo Zou Bing Zheng Yu Chen Yongfei Guo Jiangang Shi 2019Acta Biochimica et Biophysica Sinica2019,51,6:4
7Polymer nanodisks by collapse of nanocapsules显示文摘It is an important challenge to make disk-like polymeric nanostructures. Herein we report a facile method for preparing polymer nanodisks by self-collapse of nanocapsules self-assembled from a statistical copolymer after partial hydrolysis. We find that partial hydrolysis of the statistical copolymer is crucial for the formation of nanodisks as it affords a suitable rigidity for the membrane of nanocapsules. The nanodisk structure has been confirmed by transmission electron microscopy(TEM), scanning electron microscopy(SEM) and atomic force microscopy(AFM) studies with a thickness of 6.3±0.2 nm. Overall, our results demonstrated a new method for making disk-like nano-objects.Jiangang Xiao Yu Hu Jianzhong Du 2018Science China Chemistry2018,61,5:3
8^99Tc^m-HYNIC-TOC SPECT/CT显像在胰腺神经内分泌肿瘤患者诊断和随访中的临床应用显示文摘目的确定^99Tc^m-联肼尼克酰胺(HYNIC)-酪氨酸3-奥曲肽(TOC)SPECT/CT显像在疑似神经内分泌肿瘤的胰腺肿块评价及胰腺神经内分泌肿瘤患者随访中的价值。方法回顾性分析了184例行^99Tc^m-HYNIC-TOCSPECT/CT显像的患者。所有患者分为2组,组1评价该显像对胰腺可疑肿块的诊断效能(n=140),组2术后随访是否有复发及转移(n=44)。比较注射显像剂后2h的显像结果与最终病理诊断结果及临床随访结果,随后分析肿瘤与本底的比值(TBR)和肿瘤分级的关系。结果组1中,67.9%(95/140)的患者诊断为神经内分泌肿瘤,包括85例神经内分泌瘤和10例神经内分泌癌。^99Tc^m-HYNIC-TOCSPECT/CT显像诊断神经内分泌肿瘤的灵敏度、特异性和准确性分别为81.1%、84.4%和82.1%。唐军(译) Junyan Xu Yi Li Xiaoping Xu Jiangang Zhang Yingjian Zhang Xianjun Yu Dan Huang 2018中华核医学与分子影像杂志2018,38,12:3
9Landing site topographic mapping and rover localization for Chang’e-4 mission显示文摘This paper presents the techniques and results of landing-site topographic mapping and rover localization using orbital,descent and rover images in the Chang’e-4 mission.High-resolution maps of the landing site are generated from orbital and descent images.Local digital elevation models and digital orthophoto maps with 0.02 m resolution are generated at each waypoint.The location of the lander is determined as(177.588?E,45.457?S)using festure-matching techniques.The cross-site visual localization method is routinely used to localize the rover at each waypoint to reduce error accumulation from wheel slippage and IMU drift in dead reckoning.After the first five lunar days,the rover travels 186.66 m from the lander,according to the cross-site visual localization.The developed methods and results have been directly utilized to support the mission’s operations.The maps and localization information are also valuable for supporting multiple scientific explorations of the landing site.Zhaoqin LIU Kaichang DI Jian LI Jianfeng XIE Xiaofeng CUI Luhua XI Wenhui WAN Man PENG Bin LIU Yexin WANG Sheng GOU Zongyu YUE Tianyi YU Lichun LI Jia WANG Chuankai LIU Xin XIN Mengna JIA Zheng BO Jia LIU Runzhi WANG Shengli NIU Kuan ZHANG Yi YOU Bing LIU Jiangang LIU 2020Science China(Information Sciences)2020,63,4:3
10Cadmium accumulation in different rice cultivars and screening for pollution-safe cultivars of rice显示文摘Hui Yu Junli Wang Wei Fang Jiangang Yuan Zhongyi Yang 2006Science of the Total Environment2006,,2:2
11Stimuli-responsive photofunctional materials for green and security printing显示文摘Information recording on paper has always been the most important approach to keep records of human activity and to spread civilization.With the progress of science and technology,paper with different functions should be exploited to conform to the increasing demands in various scenarios.In one aspect,traditional paper can only be used once,and using large amounts of paper causes deforestation,additional solid waste treatment,environmental pollution,and high energy consumption.Consequently,the development of rewritable paper that is environment-friendly,low cost,and can save resources is significant for green printing.In the other aspect,information leakage brings security issues,which may lead to severe consequences,such as war outbreak,economic loss,social problems,and so on.Therefore,the development of security printing has also attracted wide interests.Stimuli-responsive photofunctional materials that have reversible variations in absorption or emission in response to changes in the external environmental have a great potential for the achievement of green and security printing.To date,much progress has been made in these research areas.This paper lists different smart materials that respond to various external stimuli,such as light,water,pH,heat,and metal ions,and summarizes the recent advances towards green and security printing.Also,we discuss the current challenges and future directions in this rapidly growing research field.It is expected that this review article will stimulate and guide future studies for the advanced green and security printing.Yun Ma Yaxin Yu Jiangang Li Shujuan Liu Wei Huang Qiang Zhao 2021InfoMat2021,3,1:2
12Design and experimental study of a planetary gearing mechanism based on twice unequal amplitude transmission ratio显示文摘To obtain the optimal seedling taking trajectory,this study proposed the adjustment of the total transmission ratio curve by using human-computer interaction.On the basis of this design method,a planetary non-circular gear mechanism was designed that can realize the twice unequal amplitude transmission ratio to meet the seedling harvesting requirements.The cubic non-uniform B-spline curve was used to fit the twice unequal amplitude transmission ratio curve,and the transmission ratio was freely distributed in two levels.The seedling pick-up mechanism was designed by controlling the seedling taking track and the corresponding attitude directly through the local section of the total transmission ratio,and the gear pitch curve was directly controlled by the transmission ratio.The kinematics model of the seedling pick-up mechanism was also established.Furthermore,the influence of the total transmission ratio on the seedling picking track,the ratio of the wave crest to the amplitude,and the mechanism parameters were discussed.A human-computer interactive optimization software was developed using Matlab,and a set of optimal parameters for the seedling pick-up mechanism was obtained to meet the transplanting requirements.By using the Adams software,the virtual prototype simulation of the seedling pick-up mechanism was completed,and the idle experiment for the track and attitude of the prototype was conducted through high-speed camera technology.The theoretical,simulated,and experimental trajectories were consistent with each other.Results revealed that the success rate of the seedling picking exceeded 90%when the rotation speeds were 40 r/min,50 r/min,and 60 r/min,and the qualified rate of the matrix decreased with the increase in rotating speed.Moreover,the number of damaged plants increased with the increase in rotating speed.The experimental results showed that the seedling pick-up mechanism designed using the proposed method demonstrated a good effect and met the required seedling picking performance.Jiangang Liu Gaohong Yu Zhipeng Tong Yao Hua 2022International Journal of Agricultural and Biological Engineering2022,15,1:1
13Improving the prediction of human microRNA target genes by using ensemble algorithm显示文摘Xingqi Yan Tengfei Chao Kang Tu Yu Zhang Lu Xie Yanhua Gong Jiangang Yuan Boqin Qiang Xiaozhong Peng 2007FEBS Letters2007,,8:1
14Nonlinear Time Series Forecasting of RBF Neural Network Based on Genetic Algorithm显示文摘GUO Lanping YU Jianning ZHANG Jiangang QI Yujuan ZHANG Xudong 2011Journal of Hebei Normal University2011,35,3:1
15Pellet Injection Research on the HT-6M and HT-7 tokamaks显示文摘Yu Yang Yi Bao Jiangang Li 1999Nuclear Fusion1999,39,11:1
16Finite element analysis of the concrete gravity debris dam by impact effect of the massive stone in the debris flow 显示文摘YU Xianbin CHEN Xiaoqing CHEN Jiangang 2014Electronic Journal of Geotechnical Engineering2014,,4:1
17Loss of liver kinase B1 causes planar polarity defects in cochlear hair cells in mice显示文摘Yuqin Men Aizhen Zhang Liwen Zhang Yecheng Jin Zhishuo Wang Jing Zhao Xiaolin Yu Jian Zhang Jiangang Gao 2016Frontiers of Medicine2016,10,4:1
18Access to Highly Active and Thermally Stable Iron Procatalysts Us- ing Bulky 2- 11-(2, 6-Dibenzhydryl-4-Methylphenylimino) Ethyl] -6- Pyridine Ligands 显示文摘Yu Jiangang Liu Hao Zhang Wenjuan 2011Chem Commun2011,47,11:1
19Synthesis, charac terization and ethylene polymerization behavior of nickel di- halide complexes bearing bulky unsymmetrical alpha-diimine ligands显示文摘Liu Hao Zhao Weizhen Yu Jiangang 2012Catal Sci Technol2012,2,2:1
20MicroRNA-21 down-regulates the expression of tumor suppressor PDCD4 in human glioblastoma cell T98G显示文摘Yang Chen Wei Liu Tengfei Chao Yu Zhang Xingqi Yan Yanhua Gong Boqin Qiang Jiangang Yuan Maosheng Sun Xiaozhong Peng 2008Cancer Letters2008,,:1
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