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| 1 | High intensity focused ultrasound in clinical tumor ablation显示文摘Recent advances in high intensity focused ultrasound(HIFU),which was developed in the 1940s as a viable thermal tissue ablation approach,have increased its popularity.In clinics,HIFU has been applied to treat a variety of solid malignant tumors in a well-defined volume,including the pancreas,liver,prostate,breast,uterine fibroids,and soft-tissue sarcomas.In comparison to conventional tumor/cancer treatment modalities,such as open surgery,radio-and chemo-therapy,HIFU has the advantages of non-invasion,non-ionization,and fewer complications after treatment.Over 100 000 cases have been treated throughout the world with great success.The fundamental principles of HIFU ablation are coagulative thermal necrosis due to the absorption of ultrasound energy during transmission in tissue and the induced cavitation damage.This paper reviews the clinical outcomes of HIFU ablation for applicable cancers,and then summarizes the recommendations for a satisfactory HIFU treatment according to clinical experience.In addition,the current challenges in HIFU for engineers and physicians are also included.More recent horizons have broadened the application of HIFU in tumor treatment,such as HIFU-mediated drug delivery,vessel occlusion,and soft tissue erosion(“histotripsy”).In summary,HIFU is likely to play a significant role in the future oncology practice. | Yu-Feng Zhou | 2011 | World Journal of Clinical Oncology2011,2,1: | 33 |
| 2 | Petawatt and exawatt class lasers worldwide显示文摘In the 2015 review paper‘Petawatt Class Lasers Worldwide’a comprehensive overview of the current status of highpower facilities of>200 TW was presented.This was largely based on facility specifications,with some description of their uses,for instance in fundamental ultra-high-intensity interactions,secondary source generation,and inertial confinement fusion(ICF).With the 2018 Nobel Prize in Physics being awarded to Professors Donna Strickland and Gerard Mourou for the development of the technique of chirped pulse amplification(CPA),which made these lasers possible,we celebrate by providing a comprehensive update of the current status of ultra-high-power lasers and demonstrate how the technology has developed.We are now in the era of multi-petawatt facilities coming online,with 100 PW lasers being proposed and even under construction.In addition to this there is a pull towards development of industrial and multi-disciplinary applications,which demands much higher repetition rates,delivering high-average powers with higher efficiencies and the use of alternative wavelengths:mid-IR facilities.So apart from a comprehensive update of the current global status,we want to look at what technologies are to be deployed to get to these new regimes,and some of the critical issues facing their development. | Colin N.Danson Constantin Haefner Jake Bromage Thomas Butcher Jean-Christophe FChanteloup Enam A.Chowdhury Almantas Galvanauskas Leonida A.Gizzi Joachim Hein David I.Hillier Nicholas W.Hopps Yoshiaki Kato Efim A.Khazanov Ryosuke Kodama Georg Korn Ruxin Li Yutong Li Jens Limpert Jingui Ma Chang Hee Nam David Neely Dimitrios Papadopoulos Rory R.Penman Liejia Qian Jorge J.Rocca andrey A.Shaykin Craig W.Siders Christopher Spindloe Sándor Szatmári Raoul M.G.M.Trines Jianqiang Zhu Ping Zhu Jonathan D.Zuegel | 2019 | High Power Laser Science and Engineering2019,7,3: | 33 |
| 3 | Petawatt class lasers worldwide显示文摘The use of ultra-high intensity laser beams to achieve extreme material states in the laboratory has become almost routine with the development of the petawatt laser. Petawatt class lasers have been constructed for specific research activities,including particle acceleration, inertial confinement fusion and radiation therapy, and for secondary source generation(x-rays, electrons, protons, neutrons and ions). They are also now routinely coupled, and synchronized, to other large scale facilities including megajoule scale lasers, ion and electron accelerators, x-ray sources and z-pinches. The authors of this paper have tried to compile a comprehensive overview of the current status of petawatt class lasers worldwide.The definition of ‘petawatt class' in this context is a laser that delivers >200 TW. | Colin Danson David Hillier Nicholas Hopps David Neely | 2015 | High Power Laser Science and Engineering2015,3,1: | 16 |
| 4 | 中国1961-2010年气象干旱的时空规律——基于SPEI和Intensity analysis方法的研究显示文摘利用中国752个气象站降水、气温资料,选择标准化降水蒸散发指数SPEI为干旱指标,采用Intensity analysis方法,从时间间隔、干旱等级变化和转换三个层面分析了1961-2010年中国气象干旱变化规律。结果表明:1961-2010年中国气象干旱的变化速率趋于上升,总变化面积由60%上升至80%以上,1980-1990年代、1990年代至21世纪初两个时间段的年平均变化相对于整个时间段较快。1960-1980年代干旱变化较为平缓,1960-1970年代干旱等级的转换主要以中等以下的干旱等级之间的转换为主导;1970-1980年代以无干旱与轻微、中等和严重干旱等级之间的相互转换为主导。1980年代至21世纪初干旱有加重的趋势,1980-1990年代以无干旱向极端干旱的转换为主导;1990年代至21世纪初中等以下的干旱向严重和极端干旱的转变成为了主导,而严重干旱则以向极端干旱转换为主导,极端干旱以向中等干旱转换为主导。 | 栗健 岳耀杰 潘红梅 叶信岳 | 2014 | 灾害学2014,29,4: | 15 |
| 5 | Effect of low intensity pulsed ultrasound on expression of TIMP-2 in serum and expression of mmp-13 in articular cartilage of rabbits with knee osteoarthritis显示文摘Objective:To study the effect of low intensity pulsed ultrasound(LIPUS) on the expression of tissue inhibitor of metalloproteinase-2(TIMP-2) in the serum and expression of matrix metallopeptidase 13(MMP-13) in the articular cartilage cells of rabbits with knee osteoarthritis(OA).Methods:Inner patellar ligament defect method was used to establish the model of knee OA.Four weeks after the modeling,the arterial blood was drawn from the ear of each rabbit,while ELISA was employed to detect the expression of TIMP-2 in the serum.The chondrocytes were separated from animals in each group and then cultured in vitro.All rabbits were divided into control group,OA model group and OA + LIPUS group.Cells in the control and OA groups were not treated,while cells in the OA+ LIPUS group were treated with LIPUS(40 mW/cnr.1 time/day).Cells were collected 7 d later and the RNA and total protein were extracted respectively.Real-time PCR and Western blotting were employed to analyze the expression of MMP-13 in chondrocytes at the mRNA and protein level,respectively.Results:The success rate of establishment of OA model was 83%.The results of ELISA showed that the content of TIMP-2 in the serum of animals with OA was 22.3%,lower than the one in the control group(P<0.05).Compared with the normal control group,the expression of TIMP-2in the OA model group was significantly increased,while the expression of MMP-13 was significantly increased(P<0.05).After the stimulation of LIPUS,the expression of TIMP-2 and MMP-13 was close to the one in the normal control group.Conclusions:The inner patellar ligament defect method is a mature method to establish the rabbit OA model,with high success rate.The expression of serum TIMP-2 in the OA model group is significantly decreased.LIPUS can up-regulate TIMP-2 and down-regulate MMP-13. | Jing-Bo Ji Xue-Fu Li Lei Liu Guang-Zhong Wang Xin-Feng Yan | 2015 | Asian Pacific Journal of Tropical Medicine2015,8,12: | 14 |
| 6 | Choledochojejunostomy with an innovative magneticcompressive anastomosis:How to determine optimalpressure?显示文摘AIM: To investigate the optimal magnetic pressure and provide a theoretical basis for choledochojejunostomy magnetic compressive anastomosis(magnamosis).METHODS: Four groups of neodymium-iron-boron magnets with different magnetic pressures of 0.1, 0.2, 0.3 and 0.4 MPa were used to complete the choledochojejunostomy magnamosis. Twenty-six young mongrel dogs were randomly divided into five groups: four groups with different magnetic pressures and 1 group with a hand-suture anastomosis. Serum bilirubin levels were measured in all groups before and 1 wk, 2 wk, 3 wk, 1 mo and 3 mo after surgery. Daily abdominal X-ray fluoroscopy was carried out postoperatively to detect the path and the excretion of the magnet. The animals were euthanized at 1 or 3 mo after the operation, the burst pressure was detected in each anastomosis, and the gross appearance and histology were compared according to the observation.RESULTS: The surgical procedures were all successfully performed in animals. However, animals of group D(magnetic pressure of 0.4 MPa) all experienced complications with bile leakage(4/4), whereas half of animals in group A(magnetic pressure of 0.1 MPa) experienced complications(3/6), 1 animal in the manual group E developed anastomotic stenosis, and animals in group B and group C(magnetic pressure of 0.2 MPa and 0.3 MPa, respectively) all healed well without complications. These results also suggested that the time required to form the stoma was inversely proportional to the magnetic pressure; however, the burst pressure of group A was smaller than those of the other groups at 1 mo(187.5 ± 17.7 vs 290 ± 10/296.7 ± 5.7/287.5 ± 3.5, P < 0.05); the remaining groups did not differ significantly. A histologic examination demonstrated obvious differences between the magnamosis groups and the hand-sewn group.CONCLUSION: We proved that the optimal range for choledochojejunostomy magnamosis is 0.2 MPa to 0.3 MPa, which will help to improve the clinical application of this technique in the future. | Fei Xue Hong-Chang Guo Jian-Peng Li Jian-Wen Lu Hao-Hua Wang Feng Ma Ya-Xiong Liu Yi Lv | 2016 | World Journal of Gastroenterology2016,22,7: | 14 |
| 7 | High intensity focused ultrasound: A noninvasive therapy for locally advanced pancreatic cancer显示文摘The noninvasive ablation of pancreatic cancer with high intensity focused ultrasound(HIFU) energy is received increasingly widespread interest. With rapidly temperature rise to cytotoxic levels within the focal volume of ultrasound beams, HIFU can selectively ablate a targeted lesion of the pancreas without any damage to surrounding or overlying tissues. Preliminary studies suggest that this approach is technical safe and feasible, and can be used alone or in combination with systemic chemotherapy for the treatment of patients with locally advanced pancreatic cancer. It can effectively alleviate cancer-related abdominal pain, and may confer an additional survival benefit with few significant complications. This review provides a brief overview of HIFU, describes current clinical applications, summarizes characteristics of continuous and pulsed HIFU, and discusses future applications and challenges in the treatment of pancreatic cancer. | Feng Wu | 2014 | World Journal of Gastroenterology2014,20,44: | 14 |
| 8 | Anti-plane Analysis of a Circular Hole withThree Unequal Cracks in One-dimensionalHexagonal Piezoelectric Quasicrystals显示文摘This paper employes variable function method and the technique of conformal mappingto discuss the anti-plane problem of a circular hole with three unequal cracksin a one-dimensional (1D) hexagonal piezoelectric quasicrystal. Based on the piezoelectricityfundamental equations of quasicrystal materials and the symmetry of1D hexagonal quasicrystal and its linear piezoelectricity effect, 1D hexagonal quasicrystalcontrol equations of anti-plane problem are derived. Applying Cauchyintegral formula, the analytical expressions for the crack tip filed intensity factorsare presented with the assumption that the crack are electrical impermeable andelectrical permeable. With the variation of the hole-size and the crack length, someof the new model of crack are obtained. In the absence of the electric load, theresults match with the classical ones. The numerical results indicate the effects ofgeometric parameters on the field intensity factors. It is verified that the horizontalcrack length and the circle radius can easily promote crack growth. Researchon such issues will provide reliable theoretical value for the engineering materialspreparation and application. | | 2016 | 工程数学学报2016,33,2: | 13 |
| 9 | A decision-making model of development intensity based on similarity relationship between land attributes intervened by urban design显示文摘The paper presents a dynamic model intervened by urban design for the decision-making of land development intensity, which expresses the inherent interaction mechanism between lands based on the evaluation of land attributes and their similarity relationship. Each land unit is described with several factors according to their condition and potential for development, such as land function, accessibility, historical site control, landscape control, and so on. Then, the dynamic reference relationship between land units is established according to the similarity relationship between their factors. That means lands with similar conditions tend to have similar development intensities, which expresses the rule of the spontaneous urban development. Therefore, the development intensities of the pending lands can be calculated by the confirmed ones. Furthermore, the system can be actively intervened by adjusting the parameters according to urban design or planning intentions. And the reaction of the system offers effective support and reference for reasonable decision. The system with multiple intervention input is not only a credible tool for deriving development intensities, but also a platform to activate urban design conception. Above all, the system as a socio-technical tool integrates the optimization of form, function and environment, and embodies the principle of impersonality, justice and flexibility in the decision of land development intensity. | WANG JianGuo1, ZHANG Yu2 & FENG Han3 1 School of Architecture, Southeast University Key Laboratory for Urban and Architectural Heritage Conservation, Ministry of Education, Nanjing 210096, China 2 School of Architecture, Southeast University, Nanjing 210096, China 3 Faculty of Architecture, Delft University of Technology, 2628 CR Delft, Netherlands | 2010 | Science China(Technological Sciences)2010,53,7: | 12 |
| 10 | Strain and kinematic vorticity analysis of the Louzidian low-angle ductile shear detachment zone in Chifeng,Inner Mongolia,China显示文摘The Louzidian low-angle ductile shear detachment zone at the south of Chifeng is a SE-dipping, low-angle normal fault system. It is composed mainly of ductile shear zone, ductile-brittle shear zone and brittle fault zone. The ductile shear zone consists of, from bottom to top, mylonitic rocks, protomylonites and mylonites. Finite strain measurement of feldspar strain markers from those rocks using the Rf /φ method shows that strain intensities (Es) of the mylonite at core of the ductile shear zone (Es=0.65-0.96) are higher than those of the mylonitic rocks close to the granite intrusions (Es=0.59-0.62) and of the protomylonites at top of the ductile shear zone (Es= 0.47-0.70), and the strain types of the protomylonites and mylonties are elongate strain and plane-flattening strain, respectively. The kinematic vorticity values (Wk) estimated by the Polar Mohr diagram and the Rigid Grain Net range from 0.81 to 0.90 with an average of 0.85 for the protomylonites, and from 0.53 to 0.80 with 0.66 on average for the mylonites; Wk values of the extensional crenulation cleavage, i.e., C′, estimated by C′ method range from 0.63 to 0.37 with an average of 0.50. The angles between the maximum principal stress and shearing direction determined using the Maximum effective moment criterion evolved from 61° to 69° and to 75°, and finally normal to shearing direction. The results of strain and kinematic vorticity measurements suggest that high strain corresponds to low kinematic vorticity. Kinematic vorticity measurements show that the Louzidian low-angle ductile shear detachment zone is a result of a combination of simple-dominated general shearing at the early stage and pure-dominated general shearing at the late stage. All these, together with isotope geochronology and regional tectonic background, suggest that the Louzidian ductile shear detachment zone resulted from a combination of crust extension and magma intrusion. The model of simple shear at the early stage and pure shear at the late stage in the formation of metamorphic core complex has probably general significance. | LI JianBo WANG Tao OUYANG ZhiXia | 2010 | Science China Earth Sciences2010,53,11: | 12 |
| 11 | A new approach toward object-based change detection显示文摘Object-based change detection has been the hotspot in remote sensing image processing.A new approach toward object-based change detection is proposed.The two different temporal images are unitedly segmented using the mean shift procedure to obtain corresponding objects.Then change detection is implemented based on the integration of corresponding objects’ intensity and texture differences.Experiments are conducted on both panchromatic images and multispectral images and the results show that the integrated measure is robust with respect to illumination changes and noise.Supplementary color detection is conducted to determine whether the color of the unchanged objects changes or not when dealing with multispectral images.Some verification work is carried out to show the accuracy of the proposed approach. | ZHANG Guo1,2,LI Yang1 & LI ZhiJiang3 1 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China 2 Satellite of Surveying and Mapping Application center,State Bureau of Surveying and Mapping,Beijing 100830,China 3 School of Printing and Packaging,Wuhan University,Wuhan 430079,China | 2010 | Science China(Technological Sciences)2010,53,S1: | 11 |
| 12 | An overview of design for CSNS/RCS and beam transport显示文摘The China Spallation Neutron Source (CSNS) is the first accelerator-based pulsed neutron source in China. Its accelerators are made up of an 80 MeV H- linac, a Rapid Cycling Synchrotron (RCS) and two beam transport lines. RCS accumulates and accelerates protons to the design energy of 1.6 GeV, and extracts high energy beam to strike the target. The overview of RCS is presented, and the key problems of the physics design are discussed. The two beam transport lines, from linac to RCS and from RCS to the target, are also introduced. | WANG Sheng AN YuWen FANG ShouXian HUANG Nan LIU WeiBin LIU YuDong QIN Qing QIU Jing WANG Na XU Gang XU ShouYan YU ChengHui | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,S2: | 11 |
| 13 | Value of early diagnosis of sepsis complicated with acute kidney injury by renal contrast-enhanced ultrasound显示文摘BACKGROUND The incidence of acute kidney injury(AKI)in patients with sepsis is high,and the prognosis of patients with septic AKI is poor.The early diagnosis and treatment of septic AKI is of great significance in improving the prognosis of patients with sepsis.AIM To explore the value of contrast-enhanced ultrasound(CEUS),serum creatinine(Scr),and other indicators in the early diagnosis of septic AKI.METHODS Ninety patients with sepsis during hospitalization at Tongji Hospital of Tongji University were recruited as subjects.Each patient was recorded with relevant basic data,clinical indicators,and CEUS results.The patients were divided into AKI group and non-AKI group according to the results of renal function diagnosis after 48 h.On the 7th day,the renal function of the non-AKI group was re-evaluated and the patients were further divided into AKI subgroup and non-AKI subgroup.The differences of the indicators in different groups were compared,and the diagnostic value of each indicator and their combination for septic AKI was analyzed.RESULTS Systemic inflammatory response score(2.58±0.75),blood lactic acid(3.01±1.33 mmol/L),Scr(141.82±27.19μmol/L),blood urea nitrogen(4.41±0.81mmol/L),and rise time(10.23±2.63 s)in the AKI group were higher than those in the non-AKI group.Peak intensity(PI)(10.78±3.98 dB)and wash in slope(WIS)(1.07±0.53 dB/s)were lower than those in the non-AKI group.The differences were statistically significant(P<0.05).The PI(12.83±3.77 dB)and WIS(1.22±0.68 dB/s)in the AKI subgroup were lower than those in the non-AKI subgroup,and the differences were statistically significant(P<0.05).The area under curve(AUC)of Scr for the diagnosis of septic AKI was 0.825 with a sensitivity of 56.76% and a specificity of 100%.The AUCs of WIS and PI(0.928 and 0.912)were higher than those of Scr.Their sensitivities were 100%,but the specificities were 71.70% and 75.47%.The AUC of the combination of three indicators for the diagnosis of septic AKI was 0.943,which was significantly higher than the AUC diagnosed by each single indicator.The sensitivity was 94.59%,and the specificity was 81.13%.CONCLUSION The combination of Scr,PI,and WIS can improve the diagnostic accuracy of septic AKI.PI and WIS are expected to predict the occurrence of early septic AKI. | Xiu-Yan Wang Yan-Ping Pang Tian Jiang Shuo Wang Jiang-Tao Li Bao-Min Shi Chen Yu | 2019 | World Journal of Clinical Cases2019,7,23: | 10 |
| 14 | Observed Trends in Various Aspects of Compound Heat Waves across China from 1961 to 2015显示文摘Based on combined thresholds of daily maximum and minimum temperatures, a compound heat wave is defined,and then changes in multiple aspects of such heat waves in China are estimated between 1961 and 2015. Our results intriguingly indicate that severe compound heat waves in northern China are characterized by excessively high intensity within short duration, while long duration determines great disaster-causing potential of severe events in the south. In the past few decades, large areas of China have experienced longer, stronger, and more frequent compound heat waves. Northern China has witnessed dramatic intensity increases, with a maximum amplification over 5°C decade^(–1); while remarkable lengthening in duration has been mostly recorded in the south, with a maximum trend over 1day decade^(–1). The spatial extent affected by compound heat waves has significantly expanded since the 1960 s, with the largest expanding rate over 6% decade^(–1) detected in North China and Northeast China. These systematic assessments serve to deepen our understanding of observed changes in compound heat waves across China, and may further shed some light on future adaptations and mitigations against an increasingly warming climate. | Yi LI Yihui DING Weijing LI | 2017 | Journal of Meteorological Research2017,31,3: | 10 |
| 15 | Synchronous estimation of DTM and fractional vegetation cover in forested area from airborne LIDAR height and intensity data显示文摘We proposed a method to separate ground points and vegetation points from discrete return,small footprint airborne laser scanner data,called skewness change algorithm.The method,which makes use of intensity of laser scanner data,is especially applicable in steep,and forested areas.It does not take slope of forested area into account,while other algorithms consider the change of slope in steep forested area.The ground points and vegetation points can be used to estimate digital terrain model(DTM) and fractional vegetation cover,respectively.A few vegetation points which were classified into the ground points were removed as noise before the generation of DTM.This method was tested in a test area of 10000 square meters.A LiteMapper -5600 laser system was used and a flight was carried out over a ground of 700―800 m.In this tested area,a total number of 1546 field measurement ground points were measured with a total station TOPCON GTS-602 and TOPCON GTS -7002 for validation of DTM and the mean error value is -18.5 cm and the RMSE(root mean square error) is ±20.9 cm.A data trap sizes of 4m in diameter from airborne laser scanner data was selected to compute vegetation fraction cover.Validation of fractional vegetation cover was carried out using 15 hemispherical photographs,which are georeferenced to centimeter accuracy by differential GPS.The gap fraction was computed over a range of zenith angles 10° using the gap light analyzer(GLA) from each hemispherical photograph.The R2 for the regression of fractional vegetation cover from these ALS data and the respective field measurements is 0.7554.So this study presents a method for synchronous estimation of DTM and fractional vegetation cover in forested area from airborne LIDAR height and intensity data. | BAO YunFei1,2,CAO ChunXiang1,ZHANG Hao1,CHEN ErXue3,HE QiSheng1,2,HUANG HuaBing1,LI ZengYuan3,LI XiaoWen1,4 & GONG Peng1 1 State Key Laboratory of Remote Sensing Science,jointly sponsored by the Institute for Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University,Beijing 100101,China 2 Graduate University of the Chinese Academy of Sciences,Beijing 100049,China 3 Institute of Forest Resource Information Technique,the Chinese Academy of Forestry,Beijing 100091,China 4 Research Center for Remote Sensing and GIS,Department of Geography and Beijing Key Laboratory for Remote Sensing of Environment and Digital Sites,Beijing Normal University,Beijing 100875,China | 2008 | Science China(Technological Sciences)2008,51,S2: | 10 |
| 16 | A MATHEMATICAL MODEL FOR RESERVOIR SEDIMENTATION AND FLUVIAL PROCESSES显示文摘This paper consists of two parts: mechanism of non-equilibrium transport of non-uniform sediment and its application in the mathematical model. Based on a statistic approach of sediment transport proposed by the authors, a 1 - D equation of non-e- quilibrium transport for various size group of sediment particles is developed. Then equations to predict change of sediment concentration and the corresponding changes in size distribution of suspended load and bed material are also derived. The conception that changes in size distribution are interrelated to sediment-carrying capacity is expounded. These results reveal the essence of sediment transport of non-uniform sediment particles. In the second part a mathematical model incorporating the mentioned equations to compute deposition and scouring in reservoirs as well as the fluvial processes of river channels has been developed. Verification of the model agrees well with field data. | Han Qiwei and He Mingmin (Senior Research Engineers, Dept. of Sedimentation Eng. Inst. of Water Conservancy and Hydroelectric Power Research.) (The English text is abridged, altered and edited by Ding Lianzhen) | 1990 | International Journal of Sediment Research1990,5,2: | 10 |
| 17 | Spatial Characteristics and Controlling Factors of the Strikeslip Fault Zones in the Northern Slope of Tazhong Uplift, Tarim Basin: Insight from 3D Seismic Data显示文摘The detailed characteristics of the Paleozoic strike-slip fault zones developed in the northern slope of Tazhong uplift are closely related to hydrocarbon explorations. In this study, five major strike-slip fault zones that cut through the Cambrian-Middle Devonian units are identified, by using 3D seismic data. Each of the strike-slip fault zones is characterized by two styles of deformation, namely deeper strike-slip faults and shallower en-echelon faults. By counting the reverse separation of the horizon along the deeper faults, activity intensity on the deeper strike-slip faults in the south is stronger than that on the northern ones. The angle between the strike of the shallower en-echelon normal faults and the principal displacement zone(PDZ) below them is likely to have a tendency to decrease slightly from the south to the north, which may indicate that activity intensity on the shallower southern en-echelon faults is stronger than that on the northern ones. Comparing the reverse separation along the deeper faults and the fault throw of the shallower faults, activity intensity of the Fault zone S1 is similar across different layers, while the activity intensity of the southern faults is larger than that of the northern ones. It is obvious that both the activity intensity of the same layer in different fault zones and different layers in the same fault zone have a macro characteristic in that the southern faults show stronger activity intensity than the northern ones. The Late Ordovician décollement layer developed in the Tazhong area and the peripheral tectonic events of the Tarim Basin have been considered two main factors in the differential deformation characteristics of the strike-slip fault zones in the northern slope of Tazhong uplift. They controlled the differences in the multi-level and multi-stage deformations of the strike-slip faults, respectively. In particular, peripheral tectonic events of the Tarim Basin were the dynamic source of the formatting and evolution of the strike-slip fault zones, and good candidates to accommodate the differential activity intensity of these faults. | HAN Xiaoying TANG Liangjie DENG Shang CAO Zicheng | 2020 | Acta Geologica Sinica(English Edition)2020,94,2: | 9 |
| 18 | NUMERICAL STUDY ON THE EFFECTS OF SEA SURFACE TEMPERATURE ON TROPICAL CYCLONE INTENSITY-PART I:NUMERICAL EXPERIMENT OF THE TROPICAL CYCLONE INTENSITY RELATED TO SST显示文摘In the context of a model of tropical cyclone intensity based on an improved meso-scaleatmospheric model, numerical simulation is performed of the track and intensity variation oftropical cyclones (TC) arising from sea surface temperature (SST) variation over a specified searegion. Evidence suggests that the model is capable of modeling quite welt the track and intensityof TC: SST variation leads to an abrupt change in the cyclone intensity: the response of thecyclone to the abrupt SST change lasts 8—12 h. | 端义宏 秦曾灏 顾建峰 李永平 | 1998 | Acta meteorologica Sinica1998,12,2: | 9 |
| 19 | STUDY ON REVENUE SHARING CONTRACT IN VIRTUAL ENTERPRISES显示文摘Member enterprises engaged in a virtual enterprise are prone to shirk both productive efforts and risks because their efforts are unobservable to any other member enterprises. How to design a revenue sharing contract to prevent the member enterprises from free riding is one of the most important issues to be considered to cut down risks that virtual enterprises may meet. Based on the work of profit sharing in partnerships and the research on revenue sharing in supply chains and joint ventures, we propose a model of the revenue sharing contract aimed at coordinating a virtual enterprise composed of n risk-averse member enterprises where every member enterprise performs different tasks and contributes distinct core resources. We characterize the optimal productive efforts, risk-taken and incentive intensity in the revenue sharing contract, and indicate that improving the evaluation precision of productive efforts and selecting weakly risk-averse member enterprises with close power are the key factors to the success of VEs. | Jian CHEN Jianfeng CHEN | 2006 | Journal of Systems Science and Systems Engineering2006,15,1: | 9 |
| 20 | 一种基于SFIM和IHS变换的图像融合算法显示文摘提出了一种基于SFIM和IHS变换的图像融合算法,利用SFIM模型的光谱保持优势,在IHS变换的基础上,只对与光谱特性不相关的I分量进行SFIM运算,理论分析和实验结果表明该算法既能显著保持光谱特性,又不存在频率分解和重建过程,同时有效融入了空间细节信息,计算简洁、实时性好,融合性能高效、高速,对于光照条件与物理特性相似的图像及需要快速交互处理和实时可视化的融合系统具有良好的启发意义和实用价值。 | 何贵青 齐敏 赵海涛 魏梦绮 郝重阳 | 2008 | 西北工业大学学报2008,26,1: | 8 |