|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A life support-based comprehensive treatment regimen dramatically lowers the in-hospital mortality of patients with fulminant myocarditis: a multiple center study显示文摘Fulminant myocarditis(FM) has unacceptable high mortality. This study aimed to evaluate the therapeutic efficacy of a life support-based comprehensive treatment regimen(LSBCTR), a completely novel treatment regimen, for FM. A total of 169 FM patients recruited from January 2008 to December 2018 were divided into two groups: patients receiving LSBCTR(81 cases),which includes(i) mechanical life support(positive pressure respiration, intra-aortic balloon pump with or without extracorporeal membrane oxygenation),(ii) immunomodulation therapy using sufficient doses of glucocorticoids and immunoglobulins, and(iii) application of neuraminidase inhibitors, and those receiving conventional treatment(88 cases). The endpoints were in-hospital death and heart-transplantation. Of all the population, 44 patients(26.0%) died in hospitals. Inhospital mortality was 3.7%(3/81) for LSBCTR group and 46.6%(41/88) for traditional treatment(P<0.001). Early application of LSBCTR, mechanical life support, neuraminidase inhibitors, and immunomodulation therapy significantly contributed to reduction in in-hospital mortality. This study describes a novel treatment regimen for FM patients that dramatically reduces inhospital mortality. Its generalization and clinical application will efficiently save lives although further optimization is needed.This study offers an insight that virus infection induced inflammatory waterfall results in cardiac injury and cardiogenic shock and is the therapeutic target. | Sheng Li Shengyong Xu Chenze Li Xiao Ran Guanglin Cui Mengying He Kun Miao Chunxia Zhao Jiangtao Yan Rutai Hui Ning Zhou Yan Wang Jiangang Jiang Jing Zhang Daowen Wang | 2019 | Science China(Life Sciences)2019，62，3： | 43 |
| 2 | Urban Spatial Restructuring in Transitional Economy——Changing Land Use Pattern in Shanghai显示文摘For almost three decades, China has been undergoing significant transition from a planned economy to a market economy. Fast-paced economic growth and urbanization, interacting with market-oriented reforms in land re- sources allocation, have caused profound spatial restructuring of Chinese cities. This paper examines urban expansion and land use reconfiguration in Shanghai’s central city from 1979 to 2002, with a special focus on the effect of the adoption of the land-leasing system in 1988. The empirical research, which employs GIS-based spatial analysis tech- niques to explore land use data for multiple years, indicates fundamental changes in the spatial characteristics of urban development in Shanghai after this important land policy reform. | XU Jiangang LIAO Banggu SHEN Qing ZHANG Feng MEI Anxin | 2007 | Chinese Geographical Science2007，17，1： | 10 |
| 3 | Coordination of Urbanization and Water Ecological Environment in Shayinghe River Basin,China显示文摘During the rapid industrialization and urbanization of China,urban agglomeration in river basin areas raises the problems of over-use of water resources and pollution of the water environment.Related research in China has mainly focused on the conflicts among economic growth,urban expansion and water resource shortages within admin-istrative boundaries.However,water environments are much more dependent on their physical boundaries than their administrative boundaries.Consistent with the nature of water environment,this study aims at analyzing coordination relationships between urban development and water environment changes within physical river basin boundaries.We chose the Shayinghe River Basin,China,as our case study area which is facing serious challenges related to water en-vironment protection.Then we classified 35 county-level administrative units into upstream,midstream and down-stream regions based on their physical characteristics;analyzed the coordination degree of urban agglomeration using the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method;and constructed cooperative models using the Linear Programming (LP function) to simulate four scenarios of the coordination relationship be-tween urban population increase and water environment protection based on existing water resources and water pollu-tion data.The results show that the present coordinative situation in Shayinghe River Basin is not sustainable.In gen-eral,more than 50% administrative units are in the bad coordinative situation.In particular,the downstream region is under worse condition than the upstream and midstream regions.Cooperative models in scenario analyses indicate that the population scale set in existing urban master plannings is not coordinated with the water environment protection.To reach the goal of regional sustainable development,the total population needs to be controlled such that it will re-main at 4.5×10 7 or below by 2020 given the capacity of water environment. | ZHANG Xiang HU Hong XU Jiangang YIN Haiwei | 2011 | Chinese Geographical Science2011，21，4： | 7 |
| 4 | NiPS_(3)quantum sheets modified nitrogen-doped mesoporous carbon with boosted bifunctional oxygen electrocatalytic performance显示文摘Electrocatalysts for oxygen reduction reactions(ORR)and oxygen evolution reactions(OER)are highly crucial and challenging toward the energy storage and conversion technologies such as fuel cells,metal-air batteries and water electrolysis.To replace noble-metal based catalysts and boost catalytic performance of carbon-based materials,we initially develop the nickel,phospho rus,sulfur and nitrogen co-modified mesoporous carbon(NiPS_(3)@NMC)as a bifunctional oxygen electrocatalyst.The perfo rmance for ORR(half-wave potential at 0.90 V)and OER(10 mA cm^(-2)at 1.48 V)surpasses those of Pt/C coupled with IrO_(2)catalysts and most of the non-precious metal based bifunctional electrocatalysts reported in related literature.Moreover,the electrochemical durability is also confirmed by accelerated durability tests(ADTs)and long-term chronoamperometry(CA)tests.We demonstrated that the interfacial effect between NiPS_(3)quantum sheets(QS s)and NMC substrates by thermal activation contributed to the enhanced oxygen electrode bifunctionality with more active sites,due to the electrons-donating from nickel,phosphorus and sulfur elements and relatively enriched pyridinic type N.Such excellent overall performance highlights the potential application of NiPS3 QSs and NMC composites as the materials on energy conversion and storage. | Kai Huang Yuyang Xu Yanpeng Song Ruyue Wanga Hehe Wei Yuanzheng Long Ming Lei Haolin Tang Jiangang Guo Hui Wu | 2021 | Journal of Materials Science & Technology2021，，6： | 7 |
| 5 | The study on county accessibility in China: Characteristics and effects on population agglomeration显示文摘这份报纸计算了所有县的空间可接近性(城市,城市的区域) 在有费用的中国加权的距离方法。县可接近性的区域部门被进行,并且交通可接近性的关系和人口聚集在这份报纸被讨论。结果显示在中国的县可接近性有主要低的价值和圆层和 reverse-to-natural 坡度的分发结构。在中国在县可接近性和人口密度之间有明显的关联。与这些分析,处于不同交通条件和区域类型的人口移植的内部机制被表明,并且能提供有用建议到地区性的计划,交通计划和在中国的人的聪明的分发。 | WANG Zhenbo XU Jiangang FANG Chuanglin XU Lu QI Yi | 2011 | Journal of Geographical Sciences2011，21，1： | 6 |
| 6 | Predictors of post coronary artery bypass grafting atrial fibrillation显示文摘Objective: To investigate the incidence and relative risk factors of post coronary artery bypass grafting(post-CABG) atrial fibrillation(AF). Methods: 312 patients with CABG were reviewed and divided into an AF group and a non-AF group. Statistical analysis was used to compare the data between the two groups and screen for risk factors of post-CABG AF. Results: 103/312 (33.01%) patients developed post-CABG AF. Univariate analysis showed that patients in AF group compared with those in non-AF group were more likely to have advanced age (≥70 years), early postoperative withdrawal of β-blockers, hypertension, left atrial enlargement (≥40 mm), a history of AF, prolonged p-wave duration (≥120 ms) and increased number of grafts (≥3). Multivariate logistic regression analysis showed that advanced age (≥70 years), early postoperative withdrawal of β-blockers, hypertension, left atrial enlargement (≥40 mm) and a history of AF were highly related to post-CABG AF. Conclusion: The incidence of AF in patients following CABG was 33.01% in this study. Advanced age, early postoperative withdrawal of β-blockers, hypertension, left atrial enlargement and a history of AF were independent risk factors of post-CABG AF. | Tongtong Shen Qijun Shan Biao Yuan Bing Yang Chun Chen Dongjie Xu Minglong Chen Jiangang Zou Kejiang Cao | 2007 | Journal of Nanjing Medical University2007，21，3： | 5 |
| 7 | Geochemical 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 | 2020 | Journal of Arid Land2020，12，6： | 5 |
| 8 | Surface charge accumulation and preflashover characteristics induced by metal particles on the insulator surfaces of 1100 kV GILs under AC voltage显示文摘With the increase in the voltage and capacitance of gas-insulated transmission lines(GILs),the insulation failure of GIL has attracted more and more attention.Further understanding of the partial discharge(PD)and flashover characteristics of metal particles on the insulator surface,as well as the flashover mechanism,is necessary to reduce the failure rate and improve the reliability of the equipment.In this study,an ultra-high voltage(UHV)AC insulator PD test and measurement system based on the cross-reference pulse current(PC)and ultra-high frequency(UHF)methods were established.The PD development and flashover characteristics of 5 mm-long metal particles at different positions on the surface of a UHV AC insulator,as well as the surface charge accumulation,were studied.The results show that the discharge of millimetre-scale metal particles on the insulator surface under PD test conditions is relatively low(generally lower than 2PC),and it is difficult to be detected by the conventional PC and UHF methods due to their insufficient sensitivity.Moreover,it is found that the weak PDs of the millimetrescale metal particles will result in a charge accumulation on the insulator surface under AC voltage,which eventually will lead to the insulator flashover.The PDs of the UHV AC insulator before flashover are generally small,which will make it difficult for online monitoring systems to give an effective alarm before flashover. | Li Xing Liu Weidong Xu Yuan Chen Weijiang Bi Jiangang | 2020 | High Voltage2020，5，2： | 4 |
| 9 | Zoning assessment of water environmental supporting capacity for socioeconomic development in the Huaihe River Basin, China显示文摘在在 Huaihe 河盆(HRB ) 的 humanwater 关系中有实质的冲突。没有降级,完成持续经济开发在 HRB 的水环境,我们开发三维的水环境支持能力(WESC ) 基于水为环境带能力(WECC ) 建模,浇环境压力(WEP ) ,并且浇污染预防和控制能力(WPPC ) 。地理信息系统有分析层次过程方法和动态加权的求和的空间分析被使用。为为工业的合适的地点和为水的环境保护策略的几个建议被介绍。下列结果被获得。(1 ) 在 WECC 的空间差别是实质的;有高值的 WECC 地区的区域主要沿着 Huaihe 河的主要溪流位于南方方面。WEP 通常高,与在整个 HRB 的污染预防和控制的全面底层。WPPC 和 WEP 显示出由于有更高环境的污染的区域通常有经济开发的高水平的事实的高空间的重叠,并且因此为污染控制有一个强壮的能力。(2 ) 总的来说, WESC 在 HRB 是中等的。特别地,有高 WESC 价值的区域仅仅在 2010 说明 56.24% HRB。在 WESC 的不同差别也在位于南方与相比的区域之间存在在盆,和区域的北方在下游的区域与相比在在上游并且中流区域。(3 ) 因而根据为在 HRB 的工业 zoning 的指导,在南方并且在的区域下游并且有低 WEP 值和高 WECC 和 WPPC 的亚溪流,传统的工业应该基于严格的环境存取和污染排放标准被开发。当为沿着 HRB 的中流并且沿着整个 Yishusi 河盆,有高 WEP 价值,的区域工业重构并且工艺的升级被建议时。措施应该在被采取限制开发并且在盆的在上游的区域保护环境,它是喝水的关键来源,在沿着 South-to-North 水转向工程的线的东方线路,并且在生态地易碎的区域盆。,这将包括干净的水的实际存在的预备保证好环境功能同时令人满意调整,转变,并且升级工业结构的迫切需要。 | ZHOU Liang SUN Dongqi XU Jiangang | 2015 | Journal of Geographical Sciences2015，25，10： | 4 |
| 10 | Spatio-temporal Characteristics of Residential Land Growth in Hefei of Anhui Province, China显示文摘We used the maps of urban land-use in 1978, 1991, 1994, 2000 and 2004, and softwares such as ArcGIS, Fragstats to analyze the spatio-temporal process of urban residential space quantitatively. Some methods, such as di- rection analysis and landscape pattern analysis, were employed. The results show that: 1) the residential land grew very rapidly in Hefei from 1978 to 2004, and the increased land was distributed mainly in the central city zone surrounded by a moat; however, after 1994, it was distributed mainly outside the 1th Ring Road; 2) the expansion speeds were very different in different directions: there exists a fastest expansion of residential land in the directions of NE-NNE, SW and SSE, and a slowest one in the directions of E and SEE; 3) the residential land growth went through four stages: slow circular expansion in 1978-1991, 'axes + fan wings' expansion in 1991-1994, more rapid circular expansion in 1994-2000 and 'fan-wings' expansion in 2000-2004; 4) the expansion intensity was also different in all directions in the period of 1978 to 1994, and the most was in SW and then NW; and 5) there were more and more residential land area, and the spatial agglomeration was improved increasingly. | CHU Jinlong XU Jiangang GAO Shu | 2007 | Chinese Geographical Science2007，17，2： | 3 |
| 11 | Seasonal variations of night mesopause temperature in Beijing observed by SATI4显示文摘The data observed by a spectral airglow temperature imager (SATI) at Beijing National Observatory of Space Environment from July 23, 2008 to July 31, 2009 are used to study night mesopause temperature in Beijing. From variations of temperature at 87 and 94 km obtained from OH (6-2) and O2 (0-1) airglow spectra, temperature at night is shown lowest in the summer and highest in the winter. In summer, average temperature at 87 km is 173.9 K, lower than average temperature 180.1 K at 94 km. But in winter, average temperature at 87 km is 201.2 K, higher than average temperature 194.8 K at 94 km. The altitude of mesopause in Beijing is below 87 km in summer and above 94 km in winter. There are about 120-150 days when the mesopause locates below 87 km, which is in agreement with the results of SABER/TIMED. Variations of temperatures at 87 and 94 km are analyzed by harmonic method. Our results show that amplitudes of annual oscillation of temperature at 87 and 94 km are 17.5 and 7.8 K respectively. Amplitudes of semi-annual oscillation at 87 and 94 km are 1.6 and 5.3 K, which are smaller than those of annual oscil- lation. Although there are differences among different observations because of different locations and different instruments, our results are in general agreement with observation at similar latitude as Beijing. | XIONG JianGang WAN WeiXing NING BaiQi LIU LiBo WU BaoYuan HU LianHuan XU Tao | 2012 | Science China(Technological Sciences)2012，55，5： | 3 |
| 12 | Integrating the ecosystem service in sustainable plateau spatial planning:A case study of the Yarlung Zangbo River Basin显示文摘The Yarlung Zangbo River Basin(YZRB)is a key ecological protection area on the Qinghai-Tibet Plateau(QTP).Determination of the ecosystem service values(ESVs)can help recognize the benefits of sustainable management.It is gradually becoming the main path that constructs plateau spatial planning of integrating ecological protection,and achieves global sustainable development goals(SDGs)in China.In this paper,the spatio-temporal dynamic evolutions of the ESVs were estimated on the multiple scales of“basin,subbasin and watershed”from 1980 to 2015.The main factors influencing ESVs were explored in terms of physical geography,human activities,and climate change.It had been proposed that sustainable spatial planning including ecological protection,basin management,and regional development was urgent to set up.Our results show that the increase in wetland and forest and results in an increase of 9.4%in the ESVs.Attention should be paid to the reduction of water and grassland.Water conservation(WC),waste treatment(WT),and soil formation and conservation(SFC)are the most important ecosystem services in the YZRB.At present,the primary problem is to solve the ESVs decreasing caused by glacier melting,grassland degradation,and desertification in the upper reaches region.The middle reaches should raise the level of supply services.Regulation services should be increased in the lower reaches region on the premise of protecting vegetation.The ESVs in adjacent watersheds are interrelated and the phenomenon of“high agglomeration and low agglomeration”is obvious,existing hot-spots and cold-spots of ESVs.Additionally,when the altitude is 4500-5500 m,the temperature is 3-8°C,and the annual precipitation is 350-650 mm,ESVs could reach its maximum.A framework of sustainable plateau spatial planning could provide references to delimit the ecological protection red line,key ecological function zone,and natural resource asset accounting on the QTP. | CHE Lei ZHOU Liang XU Jiangang | 2021 | Journal of Geographical Sciences2021，31，2： | 3 |
| 13 | ^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 |
| 14 | Detecting sand-dust storms using a wind-profiling radar显示文摘Sand-dust storm is a type of disastrous weather, typically occurring in arid and semi-arid climates. This study selected a region in the hinterlands of the Taklimakan Desert, called the Tazhong region, as the experimental area to quantitatively estimate the particle concentrations of sand-dust storms using the boundary layer wind-profiling radar. We thoroughly studied the radar echo signals and reflectivity factor features during the sand-dust storms. The results indicate that(1) under sand-dust storm conditions, boundary layer wind-profiling radar cannot capture the complete information regarding horizontal wind velocity and direction, but it can obtain the backscattering intensity of sand-dust storms; and(2) during sand-dust storms particle size distributions in the surface layer closely resemble log-normal distributions, with sand-dust particles sizes of 90–100 μm accounting for the maximum particle probability. Retrieved particle size distributions at heights of 600, 800, and 1000 m follow log-normal distributions, and the expected value of particle diameter decreases gradually with increasing height. From the perspective of orders of magnitude, the retrieved results for particle number concentrations and mass concentrations are consistent with previous aircraft-detected results, indicating that it is basically feasible to use boundary layer wind-profiling radar to quantitatively detect the particle concentrations of dust storms. | WANG Minzhong MING Hu HUO Wen XU Hongxiong LI Jiangang LI Xingcai | 2017 | Journal of Arid Land2017，9，5： | 2 |
| 15 | Tpeak-Tend interval as a new risk factor for arrhythmic event in pa-tient with Brugada syndrome显示文摘Objective: To evaluate Tpeak- Tend ( Tp- e) interval in surface standard ECG as a new risk factor for arrhythmic event inpatient with Brugada syndrome. Methods: 23 male patients with Brugada syndrome and 20 male patients with paroxysmalsupraventricular tachycardia ( PSVT) as the control group were investigated in this study. Tp- e interval in surface standardECG was compared between BrS and PSVT patients. Results: Tp- e interval in BrS patients was significantly longer thanthat in PSVT patients ( 109.57±22.86 ms vs. 88.50±13.08ms, P<0.05) . There was significant difference in Tp- e interval be-tween 16 BrS patients with arrhythmic events ( including syncope, clinical ventricular fibrillation [ VF] and programmed elec-trical stimulation [ PES] - induced VF) and 7 BrS patients without arrhythmic events and PSVT patients ( 118.12±20.40ms vs.90.00±15.27ms, P<0.05; 118.12±20.40ms vs. 88.50±13.08ms, P<0.05). However, Tp- e interval was similar in BrS patients with-out arrhythmic events and PSVT patients (90.00±15.27ms vs 88.50±13.08ms, P>0.05). Conclusion: The prolongation of Tp- einterval could serve as a new noninvasive event predictor for arrhythmic events in patients with Brugada syndrome. | Jinfeng Wang Qijun Shan Bing Yang Minglong Chen Jiangang Zou Dongjie Xu Chun Chen Kejiang Cao | 2007 | Journal of Nanjing Medical University2007，21，4： | 2 |
| 16 | Spatio-temporal Dynamic Simulation of Land use and Ecological Risk in the Yangtze River Delta Urban Agglomeration,China显示文摘Rapid urbanization leads to dramatic changes in land use patterns,and the land use/cover change(LUCC)can reflect the spatial impact of urbanization on the ecological environment.Simulating the process of LUCC and predicting the ecological risk future changes can provide supports for urban ecological management.Taking the Yangtze River Delta Urban Agglomeration(YRDUA),China as the study area,four developmental scenarios were set on the basis of the land use data from 2005 to 2015.The temporal land use changes were predicted by the integration of the system dynamic and the future land use simulation(SD-FLUS)model,and the geographically weighted regression(GWR)model was used to identify the spatial heterogeneity and evolution characteristics between ecological risk index(ERI)and socio-economic driving forces.Results showed that:1)From 2005 to 2015,the expansion of construction land(7670.24 km^(2))mainly came from the occupation of cultivated land(7854.22 km2).The Kappa coefficient of the SD-FLUS model was 0.886,indicating that this model could be used to predict the future land use changes in the YRDUA.2)Gross domestic production(GDP)and population density(POP)showed a positive effect on the ERI,and the impact of POP exceeded that of GDP.The ERI showed the characteristics of zonal diffusion and a slight upward trend,and the high ecological risk region increased by 6.09%,with the largest increase.3)Under different developmental scenarios,the land use and ecological risk patterns varied.The construction land is increased by 5.76%,7.41%,5.25%and 6.06%,respectively.And the high ecological risk region accounted for 12.71%,15.06%,11.89%,and 12.94%,correspondingly.In Scenario D,the structure of land use and ecological risk pattern was better compared with other scenarios considering the needs of rapid economic and ecological protection.This study is helpful to understand the spatio-temporal pattern and demand of land use types,grasp the ecological security pattern of large-scale areas,and provide scientific basis for the territory development of urban agglomeration in the future. | WANG Xiao CHE Lei ZHOU Liang XU Jiangang | 2021 | Chinese Geographical Science2021，31，5： | 2 |
| 17 | Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers显示文摘Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers.To apply it to a working transformer,people need to determine how to inject the excitation signal and measure the response signal for windings that bear a rated voltage and current.In this study,a method to obtain the frequency response curve online is proposed.It uses the principle of magnetic field coupling to inject a frequency sweep signal into the windings through a Rogowski coil.Another Rogowski coil sensor placed at the root of a high-voltage bushing is used to measure the response current signal.Experiments on a 72.5 kV bushing show that metal accessories of the bushing have no influence on the injection or the measurement.The feasibility of this method was verified by experiments on charged 110/35/10 kV transformers at a factory and a working 35 kV transformer in a power station.The results show that it is safe to install the Rogowski coil at the root of the high-voltage bushing.The excitation signal can be injected into live windings and the response signal is measurable.Strong electromagnetic power frequency noise can be reduced and the frequency response curve can be measured online. | Yangchun Cheng Jiangang Bi Wenzhi Chang Yuan Xu Xiaohua Pan Xianwei Ma Shuai Chang | 2020 | High Voltage2020，5，3： | 2 |
| 18 | Hoist safety risk assessment model research显示文摘 | YI Jiangang CAI Xin XU Jingcai | 2011 | Advanced Materials Research2011，，： | 1 |
| 19 | Monte Carlo simulation of photon migration path in turbid media显示文摘 | Wang Jiangang Wang Guiying Xu Zhizhan | 2008 | Chin Opt Lett2008，6，7： | 1 |
| 20 | Dynamic modeling and analysis of Z-source converter: derivation of AC small signal mod- el and design-oriented analysis显示文摘 | LIU Jingbo HU Jiangang XU Longya | 2007 | IEEE Transactions on Power Electronics2007，22，5： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员