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| 1 | Water Requirements and Irrigation Scheduling of Spring Maize Using GIS and CropWat Model in Beijing-Tianjin-Hebei Region显示文摘Due to the over use of available water resources, it has become very important to define appropriate strategies for planning and management of irrigated farmland. In this paper, Beijing-Tianjin-Hebei (Jing-Jin-Ji) region was chosen as the case study area for its special political and economic status and its severe water problem. To achieve effective planning, the information about crop water requirements, irrigation withdrawals, soil types and climatic conditions were obtained in the study area. In the meantime, a GIS method was adopted, which extends the capabilities of the crop models to a regional level. The main objectives of the study are: 1) to estimate the spatial distribution of the evapotranspiration of spring maize; 2) to estimate climatic water deficit; 3) to estimate the yield reduction of spring maize under different rainfed and irrigated conditions. Based on the water deficit analysis, recommended supplemental irrigation schedule was developed using CropWat model. Compared to the rainfed control, the two or three times of supplemental water irrigated to spring maize at the right time reduced the loss of yield, under different scenarios. | FENG Zhiming LIU Dengwei ZHANG Yuehong | 2007 | Chinese Geographical Science2007,17,1: | 18 |
| 2 | 采用Fisher判别法对GIS中局部放电类型的识别(英文)显示文摘To monitor the condition of online power apparatus accurately and provide appropriate guidance on their maintenance,a fundamental ultra-high frequency(UHF) database of partial discharges corresponding to different types of defects is presented for the observation of insulation state of gas insulated switchgear(GIS).In order to imitate the defects in a GIS online,five types of typical partial discharge(PD) sources(i.e.floating metal,protrusion,bouncing particles,void in spacer,and particle on the surface of solid insulation) were designed and fabricated.A wideband UHF sensor and an amplifier were applied to obtain UHF signals.Based on the characteristics of the five different defects,nine meaningful parameters which were independent of the phase of the applied voltage were extracted from the PD samples and then discussed.In this paper,Fisher discriminant analysis(FDA),a pattern recognition algorithm,was applied for the purpose of classifying the defects.In this way,there was no need to set complicated parameters and kernel function,and the total discrimination accuracy of test samples was 97.6%.It indicates that based on the nine especial parameters,the typical defects in GIS can be identified exactly by means of FDA.Hence the analysis method could be possibly regarded as a universal classification method. | DING Dengwei GAO Wensheng LIU Weidong | 2013 | 高电压技术2013,39,4: | 9 |
| 3 | Analysis of Excitation Characteristics of Ultra High Frequency Electromagnetic Waves Induced by PD in GIS显示文摘The understanding of the excitation mechanism of ultra high frequency (UHF) electromagnetic waves (EW) is essential for ap- plying UHF method to partial discharge (PD) detection. Since the EW induced by PD in gas insulated switchgear (GIS) contains not only transverse electromagnetic (TEM) wave, but also high-order transverse electric (TE) and high-order transverse magnetic (TM) waves, we analyzed the proportions between the TEM wave and the high order waves, as well as the influence of the PD position on this proportion, using the finite different time domain (FDTD) method. According to the unique characteristics of the waves, they are separated only ap- proximately. It is found that the high-order mode is the main component, more than 70%, of the electric field around the enclosure of GIS, and that with the increasing distance between PD source and inner conductors, the low frequency ( below about 800 MHz) component of EW decreases, but the high frequency component (above 1 GHz) increases, meanwhile the proportion of high-order components in EW could reach 77% from 70%. It concluded that the closer the PD source to the enclosure is, the easier high order EW may be excited. | DING Dengwei GAO Wensheng YAO Senjing LIU Weidong HE Jiaxi | 2013 | 高电压技术2013,39,8: | 7 |
| 4 | Enhanced photodynamic therapy of mixed phase TiO2(B)/anatase nanofibers for killing of HeLa cells显示文摘光力学的治疗(太平洋夏季时间) 是使用使药具有感光性有选择地使用治疗指向地点的一个过程,被证明了是为可以发展成癌症的癌症和条件的安全治疗。缩放 Nano 的 TiO < 潜水艇 class= “ a-plus-plus ” > 2 为紫外轻驾驶太平洋夏季时间被认为是潜在的 photosensitizer。在这研究, TiO 的四种类型<潜水艇class=“ a-plus-plus ”> 2 nanofibers 从质子 tri-titanate 被准备( H <潜水艇class=“ a-plus-plus ”> 2 T <潜水艇class=“ a-plus-plus ”> 3 O <潜水艇class=“ a-plus-plus ”> 7 ) nanofiber 。同样获得的 nanofibers 为太平洋夏季时间杀死 HeLa 房间作为有效 photosensitizers 被表明。MTT 试金和流动 cytometry (FCM ) 被执行评估 biocompatibility, apoptotic 房间的百分比,和房间生存能力。同样准备的 TiO 的 non-cytotoxicity < 潜水艇 class= “ a-plus-plus ” > 当紫外照耀不在时的 2 nanofibers 也被表明了。在紫外轻照耀下面, TiO < 潜水艇 class= “ a-plus-plus ” > 2 nanofibers,特别地混合阶段 nanofibers,比 Pirarubicin (THP ) 显示了高得多的杀死房间的效率,它是普通的药导致 HeLa 房间的 apoptosis。我们归功于混合阶段 nanofibers 的高 cellkilling 效率到在 TiO 之间的 bandgap 边比赛和稳定的接口 < 候补选手 class= “ a-plus-plus ” > 2 (B) 和锐钛矿在单个 nanofiber 分阶段执行,它能禁止 photogenerated 电子和洞的再结合。这支持费用分离和转移过程和罐头生产负责杀死 HeLa 房间的更多的反应的氧种类(ROS ) 。 | Shuchao Zhang Dongjiang Yang Dengwei Jing Hongwei Liu Long Liu Yi Jia Meihua Gao Liejin Guo Ziyang Huo | 2014 | Nano Research2014,7,11: | 6 |
| 5 | A Complete Embryonic Developmental Table of Microhyla fissipes(Amphibia,Anura,Microhylidae)显示文摘Access to embryonic developmental stages is essential basic work for understanding how organisms develop. In this study, seven egg clutches(range 209–564 eggs) of ornamented pygmy frog Microhyla fissipes(Amphibia, Anura, Microhylidae) were obtained from seven breeding pairs in laboratory. One egg clutch of them was observed for the embryonic development, and the staging table of normal development was constructed based on morphological and physiological characteristics. Forty-five developmental stages were defined for M. fissipes, and two major developmental periods were designated: 1) early embryonic development period(stages 1–28), from fertilization to operculum completion stage, lasted for 82.6 hours at water temperature(WT) 23–25℃; 2) larval development period(stages 29–45), from operculum completion to tail complete absorption stage, took 38 days at WT 22–26.5℃, showing that the embryos of this species develop rapidly. In addition, the tadpoles were transparent, which is similar to those in field. These characteristics suggest that M. fissipes would be a good model to study developmental biology, adaptive mechanisms from aquatic to terrestrial phases, environmental toxicology, and human disease. | Shouhong WANG Lanying ZHAO Lusha LIU Dengwei YANG Janak Raj KHATIWADA Bin WANG Jianping JIANG | 2017 | Asian Herpetological Research2017,18,2: | 5 |
| 6 | Ginger polysaccharide UGP1 suppressed human colon cancer growth via p53,Bax/Bcl-2,caspase-3 pathways and immunomodulation显示文摘In previous study,we got a purified ginger polysaccharide UGP1 and verified its significant antitumor activities on colon cancer HCT116 cells.In this article,we aimed to illustrate the underlying mechanism of UGP1 exerted antitumor activities on colon cancer by using in vitro cell models and in vivo animal models.The results demonstrated that UGP1 could induce S-phase cell cycle arrest,up-regulate the expression of Bax and p53,down-regulate the expression of Bcl-2,and activate the downstream protein caspase-9 and caspase-3,which was related to intrinsic apoptosis pathway on HCT116 cells.Moreover,UGP1 significantly stimulated RAW264.7 cell proliferation and secretion activity.Similarly,UGP1 inhibited tumor proliferation on tumor-bearing mice,increased the expression of p53 and the ratio of Bax/Bcl-2,enhanced the secretion of pro-inflammatory cytokines TNF-α,IL-2,IL-6 and decreased the secretion of pro-tumor cytokines TGF-βand b FGF in serum.In conclusion,it indicated that the UGP 1 could sup press human colon cancer growth by inducing apoptosis via the regulation of p53,caspase-3,and Bax/Bcl-2 ratio-dependent pathway and regulating immune system activity.Thi s investigation provided basic theoretical mechanism of ginger polysaccharideexerted antitumor activities,and contributed to develop a possible functional food or adjuvant agent for prevention or treatment of colon cancer. | Yanfang Qian Chenying Shi Chen Cheng Dengwei Liao Junping Liu Guitang Chen | 2023 | Food Science and Human Wellness2023,12,2: | 4 |
| 7 | Identification and Categorization of Climate Change Risks显示文摘The scientific evidence that climate is changing due to greenhouse gas emission is now incontestable, which may put many social, biological, and geophysical systems in the world at risk. In this paper, we first identified main risks induced from or aggravated by climate change. Then we categorized them applying a new risk categorization system brought forward by Renn in a framework of International Risk Governance Council. We proposed that 'uncer-tainty' could be treated as the classification criteria. Based on this, we established a quantitative method with fuzzy set theory, in which 'confidence' and 'likelihood' , the main quantitative terms for expressing uncertainties in IPCC, were used as the feature parameters to construct the fuzzy membership functions of four risk types. According to the maximum principle, most climate change risks identified were classified into the appropriate risk types. In the mean time, given that not all the quantitative terms are available, a qualitative approach was also adopted as a complementary classification method. Finally, we get the preliminary results of climate change risk categorization, which might lay the foundation for the future integrated risk management of climate change. | ZHANG Yuchong WU Shaohong DAI Erfu LIU Dengwei YIN Yunhe | 2008 | Chinese Geographical Science2008,18,3: | 2 |
| 8 | Research on the typical partial discharge using the UHF detection method for GIS显示文摘 | Gao Wensheng Ding Dengwei Liu Weidong | | 0,,4: | 1 |
| 9 | Screening of Broad-spectrum Resistance Resources against Rice Bacterial Leaf Streak显示文摘[Objectives] Rice materials with broad-spectrum resistance against several pathogenic strains of Xanthomans oryzae pv. Oryzicola( Xooc) at multiple growth stages were screened,in order to provide reliable resistance sources for variety breeding against rice bacterial leaf streak. [Methods] A total of 1 100 rice lines with rich genetic background were offered as selective objects,and highly susceptible cultivar Jingang 30 was used as the control. Inoculation was carried out with five strong pathogenic strains of Xooc through acupuncture method at various growth stages for resistance identification. [Results] Fourteen disease-resistant materials were obtained through preliminary screening,accounting for 1. 27% of the total materials. Nine materials moderately resistant to bacterial leaf streak were obtained via secondary screening,accounting for 0. 82% of the total materials. Besides,three of them( RL6,RL9 and RL14) were resistant to a number of pathogenic strains of Xooc at three growth stages. In particular,RL16 presented broad-spectrum resistance to multi-strains with high resistance levels. Six of them( RL2,RL4,RL5,RL8,RL11 and RL12) were resistant to single strain at single growth stage. [Conclusions] The obtained three materials have broad-spectrum resistance to bacterial leaf streak at multiple growth stages,which can be served as an important source to cultivate disease-resistant rice varieties. RL6 maintains high broad-spectrum resistance at all growth stages,which can be used as a prior resistance source for rice variety breeding. Six materials obtained with resistance against bacterial leaf streak at particular growth stages can be used as candidate resistance sources. | Hong Dengwei Zhao Yan Luo Dengjie Shi Lijun Li Rongbai Liu Fang | 2017 | Plant Diseases and Pests2017,8,3: | 1 |
| 10 | In- vestigation of the evaluation of the PD severity and verifi- cation of the sensitivity of partial-discharge detection using the UHF method in GIS显示文摘 | GAO Wensheng DING Dengwei LIU Weidong | 2014 | IEEE Transactions on Power Delivery2014,29,1: | 1 |
| 11 | Expression of a wild eggplant ribosomal protein L13a in potato enhances resistance to Verticillium dahliae显示文摘 | Liu Yang Chao Xie Wang Li Ruijie Zhang Dengwei Jue Qing Yang | 2013 | Plant Cell, Tissue and Organ Culture (PCTOC)2013,,3: | 1 |
| 12 | Photocatalytic hydrogen production over Na2Ti204 (OH)2 nanotube sensitized by CdS nanoparticles 显示文摘 | Xing Chanjuan Jing Dengwei Liu Maochang | 2009 | Materials Research Bulletin2009,44,2: | 1 |
| 13 | Investigation of sensitivity of the ultra-high frequency partial-discharge detection technology for micro-crack in epoxy insulator in GIS显示文摘The ultra-high frequency(UHF)method has been widely used in a gas-insulated system(GIS)for partial-discharge detection,and many achievements have been realised.In addition,many studies based on artificial defects have been made to confirm its validity.Therefore,the UHF method is generally believed to be sufficiently effective for GIS monitoring.However,in practical application,the authors find that for some micro-crack discharge in GIS insulator,the UHF method has low sensitivity.To fully study the characteristics of the micro-crack discharge in the GIS insulator,an experiment is conducted in this study using an actual post insulator with a micro-crack defect.The current signal based on IEC 60270 standard and the radio-frequency electromagnetic signal is simultaneously measured for thorough analysis.The results show that some submillimetre crack defects may occur in the GIS insulator.Its discharge is mainly presented as glow discharge,and the discharge signal frequency usually cannot reach the UHF band;thus,it cannot be effectively detected by the UHF method.This study provides complementary information to the applicability of the UHF method and inspires further study of the GIS insulator and its monitoring technology. | Jiangrong Cheng Yang Xu Dengwei Ding Weidong Liu | 2020 | High Voltage2020,5,6: | 1 |
| 14 | Risk evasion contract design for distribution utility based on incentives theory 显示文摘 | Dengwei Duan Junyong Liu Jiguang Wu | 2004 | IEEE International Conference on Electric Utility Deregulation Restructuring and Power Technologies April 20042004,,: | 1 |
| 15 | Investigation of the evaluation of the PD severity and ver- ification of the sensitivity of partial-discharge detection using the UHF method in GIS显示文摘 | GAO Wensheng DING Dengwei LIU Weidong | 2014 | IEEE Transaction on Power Delivery2014,29,1: | 1 |
| 16 | A Network Security Risk Assessment Method Based on a B_NAG Model显示文摘Computer networks face a variety of cyberattacks.Most network attacks are contagious and destructive,and these types of attacks can be harmful to society and computer network security.Security evaluation is an effective method to solve network security problems.For accurate assessment of the vulnerabilities of computer networks,this paper proposes a network security risk assessment method based on a Bayesian network attack graph(B_NAG)model.First,a new resource attack graph(RAG)and the algorithm E-Loop,which is applied to eliminate loops in the B_NAG,are proposed.Second,to distinguish the confusing relationships between nodes of the attack graph in the conversion process,a related algorithm is proposed to generate the B_NAG model.Finally,to analyze the reachability of paths in B_NAG,the measuring indexs such as node attack complexity and node state transition are defined,and an iterative algorithm for obtaining the probability of reaching the target node is presented.On this basis,the posterior probability of related nodes can be calculated.A simulation environment is set up to evaluate the effectiveness of the B_NAG model.The experimental results indicate that the B_NAG model is realistic and effective in evaluating vulnerabilities of computer networks and can accurately highlight the degree of vulnerability in a chaotic relationship. | Hui Wang Chuanhan Zhu Zihao Shen Dengwei Lin Kun Liu MengYao Zhao | 2021 | Computer Systems Science & Engineering2021,38,7: | 0 |
| 17 | Evaporation and drying characteristics of the sessile ferrofluid droplet under a horizontal magnetic field显示文摘In this study,the evaporation characteristics and drying patterns of various sessile ferrofluid droplets on certain substrate under horizontal magnetic fields of controlled intensities are reported.The effects of droplet concentration and magnetic field intensity on the duration of each evaporation stage and drying patterns of droplets have been systematically investigated.It turned out that a plateau appears at the initial stage of evaporation in the absence of magnetic field and it was found that the plateau value is positively correlated with the concentration of ferrofluid droplets.Under the external magnetic field,the evaporation time of droplets decreases,the stage of contact line retreat extends,the stage of late pinning mode shortens,and the deposition area of ferrofluid droplet decreases compared to that of without magnetics field.The deposition area increases gradually and becomes more uniform with the increase of magnetic field.The decrease of friction force which is due to the decrease of the number of nanoparticles at the contact line under external magnetic field is the main reason for the observed phenomena.We found that the coffee ring and the uniform deposition inside the droplet will be destroyed when the magnetic field intensity is higher than a critical value.Our work has a significant reference value for the evaporation of sessile magnetic fluid droplets under the applied magnetic field,especially when the drying pattern needs to be precisely controlled,such as in spray or biomedicine. | Zhaonan Liu Jiandong Zhou Yang Li Xin Zhuo Xiujuan Shi Dengwei Jing | 2022 | Fundamental Research2022,2,2: | 0 |
| 18 | Theoretical study on flow and radiation in tubular solar photocatalytic reactor显示文摘In this paper,based on the mixture flow model,an optimized six-flux model is first established and applied to the tubular solar photocatalytic reactor.Parameters influencing photocatalyst distribution and radiation distribution at the reactor outlet,viz.catalyst concentration and circulation speed,are also analyzed.It is found that,at the outlet of the reactor,the optimized six-flux model has better performances(the energy increase by 1900%and 284%,respectively)with a higher catalyst concentration(triple)and a lower speed(one third). | Qingyu WEI Yao WANG Bin DAI Yan YANG Haijun LIU Huaijie YUAN Dengwei JING Liang ZHAO | 2021 | Frontiers in Energy2021,15,3: | 0 |
| 19 | CRISPR-detector:fast and accurate detection,visualization,and annotation of genome-wide mutations induced by genome editing events显示文摘The leading-edge CRISPR/CRISPR-associated technology is revolutionizing biotechnologies through genome editing.To track on/off-target events with emerging new editing techniques,improved bioinformatic tools are indispensable.Existing tools suffer from limitations in speed and scalability,especially with whole-genome sequencing(WGS)data analysis.To address these limitations,we have developed a comprehensive tool called CRISPR-detector,a web-based and locally deployable pipeline for genome editing sequence analysis.The core analysis module of CRISPR-detector is based on the Sentieon TNscope pipeline,with additional novel annotation and visualization modules designed to fit CRISPR applications.Co-analysis of the treated and control samples is performed to remove existing background variants prior to genome editing.CRISPR-detector offers optimized scalability,enabling WGS data analysis beyond Browser Extensible Data file-defined regions,with improved accuracy due to haplotype-based variant calling to handle sequencing errors.In addition,the tool also provides integrated structural variation calling and includes functional and clinical annotations of editing-induced mutations appreciated by users.These advantages facilitate rapid and efficient detection of mutations induced by genome editing events,especially for datasets generated from WGS.The web-based version of CRISPR-detector is available at http://gffzz984746bd41ee48d7skfqnnw0opowb6v00.ffgz.tsg.suse.edu.cn/crispr-detector,and the locally deployable version is available at http://gffzz188fe103f8f1460askfqnnw0opowb6v00.ffgz.tsg.suse.edu.cn/hlcas/CRISPR-detector. | Lei Huang Dan Wang Haodong Chen Jinnan Hu Xuechen Dai Chuan Liu Anduo Li Xuechun Shen Chen Qi Haixi Sun Dengwei Zhang Tong Chen Yuan Jiang | 2023 | Journal of Genetics and Genomics2023,50,8: | 0 |
| 20 | Corrigendum to“CRISPR-detector:fast and accurate detection,visualization,and annotation of genome-wide mutations induced by genome editing events”[Journal of Genetics and Genomics(2023)563-572]显示文摘This corrigendum clarifies information in the article“CRISPR-detector:fast and accurate detection,visualization,and annotation of genomewide mutations induced by genome editing events”by Huang et al.(2023).In the figure legend of Fig.S1,the sentence“CRISPR-detector failed to report insertions larger than 72 bp while CRISPResso2 failed to report insertions larger than 53 bp.”should be corrected into“CRISPR-detector failed to report deletions larger than 71 bp while CRISPResso2 failed to report deletions larger than 53 bp.” | Lei Huang Dan Wang Haodong Chen Jinnan Hu Xuechen Dai Chuan Liu Anduo Li Xuechun Shen Chen Qi Haixi Sun Dengwei Zhang Tong Chen Yuan Jiang | 2023 | Journal of Genetics and Genomics2023,50,10: | 0 |