|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | How many sutures in the southern Central Asian Orogenic Belt:Insights from East Xinjiang-West Gansu(NW China)?显示文摘How ophiolitic mèlanges can be defined as sutures is controversial with regard to accretionary orogenesis and continental growth.The Chinese Altay,East junggar,Tianshan,and Beishan belts of the southern Central Asian Orogenic Belt(CAOB) in Northwest China,offer a special natural laboratory to resolve this puzzle.In the Chinese Altay,the Erqis unit consists of ophiolitic melanges and coherent assemblages,forming a Paleozoic accretionary complex.At least two ophiolitic melanges(Armantai,and Kelameili) in East Junggar,characterized by imbricated ophiolitic melanges,Nb-enriched basalts,adakitic rocks and volcanic rocks,belong to a Devonian-Carboniferous intra-oceanic island arc with some Paleozoic ophiolites,superimposed by Permian arc volcanism.In the Tianshan,ophiolitic melanges like Kanggurtag,North Tianshan,and South Tianshan occur as part of some Paleozoic accretionary complexes related to amalgamation of arc terranes.In the Beishan there are also several ophiolitic melanges,including the Hongshishan,Xingxingxia-Shibangjing,Hongliuhe-Xichangjing,and Liuyuan ophiolitic units.Most ophiolitic melanges in the study area are characterized by ultramafic,mafic and other components,which are juxtaposed,or even emplaced as lenses and knockers in a matrix of some coherent units.The tectonic settings of various components are different,and some adjacent units in the same melange show contrasting different tectonic settings.The formation ages of these various components are in a wide spectrum,varying from Neoproterozoic to Permian.Therefore we cannot assume that these ophiolitic melanges always form in linear sutures as a result of the closure of specific oceans.Often the ophiolitic components formed either as the substrate of intra-oceanic arcs,or were accreted as lenses or knockers in subduction-accretion complexes.Using published age and paleogeographic constraints,we propose the presence of (1) a major early Paleozoic tectonic boundary that separates the Chinese Altay-East Junggar multiple subduction systems of the southern Siberian active margin from those of the northern Tarim;and (2) a major Permian suture zone that separates the Tianshan-Beishan from the northern active margin of the Tarim Craton.These new observations and interpretations have broad implications for the architecture and crustal growth of central Asia and other ancient orogens as well. | Wenjiao Xiao Chunming Han Wei Liu Bo Wan Ji'en Zhang Songjian Ao Zhiyong Zhang Dongfang Song Zhonghua Tian Jun Luo | 2014 | Geoscience Frontiers2014，5，4： | 31 |
| 2 | Prevalence and risk factors of urinary incontinence in Fuzhou Chinese women显示文摘Background We randomly sampled a healthy community to evaluate the prevalence and associated risk factors of urinary incontinence. Methods The survey was performed in Fuzhou, China. Of women over twenty years of age in the city, 3.0% were randomly selected and 4684 evaluated by Bristol Female Urinary Tract Symptoms Questionnaire. Results Of the women in Fuzhou, 19.0% had urinary incontinence. The prevalence of stress incontinence, urge incontinence and mixed incontinence was 16.6% (n=777), 10.0% (n=468), 7.7% (n=360) respectively. The prevalence of the three types of urinary incontinence increased significantly with age (P<0.01). In multiple logistic models, age (OR, 1.3, 95%CI, 1.1-1.4), vaginal delivery (3.0, 1.9-4.7), parity >2 (2.1, 1.5-2.9), hypertension (2.7, 1.4-5.6), constipation (2.6, 1.8-3.8), alcohol consumption (4.7, 1.1-20.2), episiotomy (1.7, 1.4-2.0), higher body mass index (BMI, 1.8, 1.5-2.2) and unskilled worker (0.7, 0.5-0.8) were potential risk factors for stress incontinence. Urge incontinence was associated with age (OR, 1.3, 95%CI, 0.9-1.3), menopause (1.6, 1.1-2.4), Caesarean delivery (0.2, 0.1-0.5), parity >2 (2.6, 1.8-3.8), constipation (2.3, 1.4-3.7), foetal birthweight (1.7, 1.1-2.4), episiotomy (1.4, 1.1-1.8), higher BMI (1.5, 1.2-2.0) and unskilled worker (0.7, 0.5-0.9). Conclusions The prevalence of urinary incontinence and its subtypes in Chinese women is lower than that of occidental women. In China, age, vaginal delivery, parity, hypertension, constipation, alcohol consumption, episiotomy, higher BMI are potential risk factors for stress incontinence. Urge incontinence is associated with age, menopause, Caesarean delivery, parity, constipation, foetal birthweight, episiotomy, higher body mass index. | SONGYan-feng ZHANGWen-ju SONGJian XUBo | 2005 | Chinese Medical Journal2005，，11： | 26 |
| 3 | Anatomy of composition and nature of plate convergence: Insights for alternative thoughts for terminal India-Eurasia collision显示文摘The pattern and timing of collision between India and Eurasia have long been a major concern of the international community. However, no consensus has been reached hitherto. To explore and resolve the disagreements in the Himalayan study,in this paper we begin with the methodology and basic principles for the anatomy of composition and nature of convergent margins,then followed by an effort to conduct a similar anatomy for the India-Eurasia collision. One of the most common patterns of plate convergence involves a passive continental margin, an active continental margin and intra-oceanic basins together with accreted terranes in between. The ultimate configuration and location of the terminal suture zone are controlled by the basal surface of the accretionary wedge, which may show fairly complex morphology with Z-shape and fluctuant geometry. One plausible method to determine the terminal suture zone is to dissect the compositions and structures of active continental margins. It requires a focus on various tectonic elements belonging to the upper plate, such as accretionary wedges, high-pressure(HP)-ultra-high-pressure(UHP) metamorphic rocks, Barrovian-type metamorphic rocks and basement nappes, together with superimposed forearc basins.Such geological records can define the extreme limits and the intervening surface separating active margin from the passive one,thus offering a general sketch for the surface trace of the terminal suture zone often with a cryptic feature. Furthermore, the occurrence of the cryptic suture zone in depth may be constrained by geophysical data, which, in combination with outcrop studies of HP-UHP metamorphic rocks, enables us to outline the terminal suture zone. The southern part of the Himalayan orogen records complicated temporal and spatial features, which are hard to be fully explained by the classic 'two-plate-one-ocean' template,therefore re-anatomy of the compositions and nature for this region is necessitated. Taking advantage of the methodology and basic principles of plate convergence anatomy and synthesizing previous studies together with our recent research, we may gain new insights into the evolution of the Himalayan orogeny.(1) The Yarlung-Zangbo ophiolite is composed of multiple tectonic units rather than a single terminal suture zone, and a group of different tectonic units were juxtaposed against each other in the backstop of the Gangdese forearc.(2) The Tethyan Himalayan Sequence(THS) contains mélanges with typical block-in-matrix structures, uniform southwards paleocurrents and age spectra of detrital zircons typical of Eurasia continent. All of these facts indicate that the THS belonged to Eurasia plate before the terminal collision, emplaced in the forearc of the Gangdese arc.(3) The Greater Himalayan Crystalline Complex(GHC) and Lesser Himalayan Sequence(LHS) comprise complex components including eclogites emplaced into the GHC and the upper part of the LHS. Judging from the fact that HP-UHP metamorphic rocks are exhumed and emplaced in the upper plate, the GHC and the upper part of the LHS where eclogite occur should be assigned to the upper plate, lying above the terminal subduction zone surface. It is the very surface along which the continuous subduction of the India subcontinent occurred, therefore acting as the terminal, cryptic suture. From the suture further southward, the bulk rock associations of the LHS and Sub-Himalayan Sequence(Siwalik) show little affinity of mélange, probably belonging to the foreland system of the India plate. By the anatomy of tectonic features of all the tectonic units in the Himalayan orogen as well as the ages of the subduction-accretion related deformation, we conclude that the terminal India-Eurasia collision occurred after 14 Ma, the timing of the metamorphism of the eclogites emplaced into the upper plate. The development of rifts stretching in N-S direction in Tibet and tectonic events with the transition from sinistral to dextral movements in shear zones, such as the Ailaoshan fault in East Tibet, can coordinately reflect the scale and geodynamic influence of the India-Eurasia convergence zone.By conducting a detailed anatomy of the southern Himalayas, we propose a new model for the final collision-accretion of the Himalayan orogeny. Our study indicates that the anatomy of structures, composition, and tectonic nature is the key to a better understanding of orogenic belts, which may apply to all the orogenic belts around the world. We also point out that several important issues regarding the detailed anatomy of the structures, compositions and tectonic nature of the Himalayan orogeny in future. | XIAO WenJiao AO SongJian YANG Lei HAN ChunMing WAN Bo ZHANG Ji'En ZHANG ZhiYong LI Rui CHEN ZhenYu SONG ShuaiHua | 2017 | Science China Earth Sciences2017，60，6： | 20 |
| 4 | Accretionary processes and metallogenesis of the Central Asian Orogenic Belt:Advances and perspectives显示文摘As one of the largest Phanerozoic orogens in the world,the Central Asian Orogenic Belt(CAOB)is a natural laboratory for studies of continental dynamics and metallogenesis.This paper summarizes the research progresses of the accretionary processes and metallogenesis of the CAOB since the Peopled Republic of China was founded,and puts forward the prospect for future research.During the early period(1950s-1970s),several geological theories were applied to explain the geological evolution of Central Asia.In the early period of China's reform and opening-up,the plate tectonics theory was applied to explain the evolution of the northern Xinjiang and Xingmeng regions,and the opinion of subduction-collision between Siberian Kazakhstan and China-North Korea-Tarim plates was proposed.The idea of the Solonker-Yanbian suture zone was established.In the 1990s,the study of the CAOB entered a period of rapid development.One school of scholars including geologists from the former Soviet Union proposed a multi-block collision model for the assemblage of the CAOB.In contrast,another school of scholars,led by a Turkish geologist,Celal Sengor,proposed that the Altaids was formed through the growth and strike-slip duplicates of a single island arc,and pointed out that the Altaids is a special type of collisional orogen.During this period,Chinese geologists carried out a lot of pioneering researches on ophiolites and high-pressure metamorphic rocks in northern China,and confirmed the main suture zones accordingly.In 1999,the concept of'Central Asian metallogenic domain'was proposed,and it became one of the three major metallogenic domains in the world.Since the 21st century,given the importance for understanding continental accretion and metallogenic mechanism,the CAOB has become the international academic forefront.China has laid out a series of scientific research projects in Central Asia.A large number of important scientific research achievements have been spawned,including the tectonic attribution of micro-continents,timing and tectonic settings of ophiolites,magmatic arcs,identification and anatomy of accretionary wedges,regional metamorphism-deformation,(ultra)high-pressure metamorphism,ridge subduction plume-plate interaction archipelagic paleogeography and spatio-temporal framework of multiple accretionary orogeny,continental growth accretionary metallogenesis,structural superposition and transformation etc.These achievements have made important international influences.There still exist the following aspects that need further study:(1)Early evolution history and subduction initiation of the Paleo-Asian Ocean;(2)The accretionary mechanism of the extroversion Paleo-Asian Ocean;(3)The properties of the mantle of the Paleo-Asian Ocean and their spatiotemporal distribution;(4)The interaction between the Paleo-Asian Ocean and the Tethys Ocean;(5)Phanerozoic continental growth mechanism and its global comparison;(6)Accretionary metallogenic mechanism of the Central Asian metallogenic domain;and(7)Continental transformation mechanism. | Wenjiao XIAO Dongfang SONG Brian FWINDLEY Jiliang LI Chunming HAN Bo WAN Ji'en ZHANG Songjian AO Zhiyong ZHANG | 2020 | Science China Earth Sciences2020，63，3： | 16 |
| 5 | Convolution without multiplication:A general speed up strategy for CNNs显示文摘Convolutional Neural Networks(CNN)have achieved great success in many computer vision tasks.However,it is difficult to deploy CNN models on low-cost devices with limited power budgets,because most existing CNN models are computationally expensive.Therefore,CNN model compression and acceleration have become a hot research topic in the deep learning area.Typical schemes for speeding up the feed-forward process with a slight accuracy loss include parameter pruning and sharing,low-rank factorization,compact convolutional filters and knowledge distillation.In this study,we propose a general acceleration scheme that replaces the floating-point multiplication with integer addition.To this end,we propose a general accelerate scheme,where the floating point multiplication is replaced by integer addition.The motivation is based on the fact that every floating point can be replaced by the summation of an exponential series.Therefore,the multiplication between two floating points can be converted to the addition among exponentials.In the experiment section,we directly apply the proposed scheme to AlexNet,VGG,ResNet for image classification,and Faster-RCNN for object detection.The results acquired from ImageNet and PASCAL VOC show that the proposed quantized scheme has a promising performance,even with only one item of exponential.Moreover,we analyzed the eciency of our method on mainstream FPGAs.The experimental results show that the proposed quantized scheme can achieve acceleration on FPGA with a slight accuracy loss. | CAI GuoRong YANG ShengMing DU Jing WANG ZongYue HUANG Bin GUAN Yin SU SongJian SU JinHe SU SongZhi | 2021 | Science China(Technological Sciences)2021，64，12： | 5 |
| 6 | Deep Structure and Metallogenic Processes of the Altai-Junggar-Tianshan Collage in Southern Altaids显示文摘The Altai-Junggar-Tianshan collage in southern Altaids is an important metallogenic domain in Central Asia that contain world-class copper-iron-nickel deposits.As an accretionary-type metallogenic system,the metallogenic processes of the Altai-Junggar-Tianshan collage is essential in understanding the genetic mechanism of ore deposits in general.Here in this paper we present a brief introduction to the project on the western part of the Southern Altaids,entitled'The deep structure and metallegenic processes of the North China accretionary metallogenic systems'.This project mainly focuses on the deep structure and metallogenic background of the Altai-Junggar-Tianshan collage by integrated studies from field geology,structural mapping,geochemistry and geophysical exploration.Multiple new geological and geophysical methods will be applied to make transparency of the Kalatongke and Kalatage ore clusters.This will update our understanding of the geodynamic processes of metallogenesis and lead to the development and foundation of new metallogenic theories in accretionary orogens. | XIAO Wenjiao SONG Dongfang HAN Chunming WAN Bo ZHANG Jien AO Songjian ZHANG Zhiyong | 2019 | Acta Geologica Sinica(English Edition)2019，93，5： | 2 |
| 7 | An Outbreak of the SARS-CoV-2 Omicron Variant BA.1—Zhuhai City,Guangdong Province,China,January 13,2022显示文摘On January 13,2022,Zhuhai CDC received a notification that a coronavirus disease 2019(COVID-19)case was found in the fever clinic in nearby Zhongshan City.Zhuhai CDC promptly carried out large-scale population screening in three nearby counties.A total of 4 COVID-19 cases were found in Nanping County.34 cases were screened from close contacts,and 2 cases were reported from close contacts in other cities of Guangdong Province.The 20 cases were sequenced by Guangdong CDC and identified as the variant of concern(VOC)/Omicron variant BA.1.Since January 14,Zhuhai has carried out 8 rounds of nucleic acid screening for COVID-19 in the county where the cases occurred.Four large-scale nucleic acid screening tests for COVID-19 were conducted across the city,and no new community cases were reported after January 15. | Feng Ruan Xuebao Zhang Songjian Xiao Xihe Ni Xiling Yin Zhongwen Ye Guorong Chen Tingting Zhu Zeling Chen Gang Yao Long Chen Sichen Huang Huitao Huang Yi Zhou Heyan Wu Hui Huang Kejing Zhu Shanzi Huang Xiaoou Tang Min Kang Bosheng Li Wenhua Mei | 2022 | China CDC weekly2022，4，30： | 2 |
| 8 | Geochronology and Geochemistry of Early Permian Mafic-Ultramafic Complexes in the Beishan Area, Xinjiang, NW China: Implications for Late Paleozoic Tectonic Evolution of the Southern Altaids 显示文摘 | Ao Songjian Xiao Wenjiao Han Chunming | 2010 | Gondwana Research2010，18，： | 1 |
| 9 | Giant cell turnout of bone:the long-term results of treatment by curettage and bone graft显示文摘 | Zhen W Yantian H Songjian L | 2004 | J Bone Joint Surg(Br)2004，86，2： | 1 |
| 10 | Giant-cell tumour of bone:the long-term results of treament by curettage and bone graft显示文摘 | Zhen W Yaotian H Songjian L | 2003 | J BoneJoint Surg(Br)2003，86，： | 1 |
| 11 | Giant-cell tumour of bone:The long-term results of treatment by eurettage and bonegraft显示文摘 | Zhen W Yaotian H Songjian L | 2004 | J Bone Joint Surg(Br)2004，86，3： | 1 |
| 12 | Geochronology and geochemistry of Early Permian mafie ultramafic complexes in the Beishan area,Xinjiang,NW China:Implications for Late Paleozoic tectonic evolution of the southern Altaids显示文摘 | Ao Songjian Xiao Wenjiao Han Chunming Mao Qigui Zhang Jien | | 0，，： | 1 |
| 13 | Giant cell tumour of bone: the long- term rsults of treatment by curettage and bone graft显示文摘 | Zhen W Yaotian H Songjian I | 2004 | J Bone Joint Surg(Br)2004，86，2： | 1 |
| 14 | Giant cell tumor of bone:The long term results of treatment by curettage and bone graft显示文摘 | Zhen W Yaotian H Songjian L | 2004 | J Bone Joint Surg (Br)2004，86，2： | 1 |
| 15 | Giant cell tumor of bone:The long term results of treatment by curettage and bone graft显示文摘 | Zhen W Yaotian H Songjian L | 2004 | J Bone Joint Surg (Br)2004，86，2： | 1 |
| 16 | Lead and Cadmium Synergistically Enhance the Expression of Divalent Metal Transporter 1 Protein in Central Nervous System of Developing Rats显示文摘 | Chengwu Gu Songjian Chen Xijin Xu Liangkai Zheng Yan Li Kusheng Wu Junxiao Liu Zongli Qi Dai Han Gangjian Chen Xia Huo | 2009 | Neurochemical Research2009，，6： | 1 |
| 17 | Giant cell tumour of bone:the long-term results of treatment by curettage and bone graft显示文摘 | Zhen W Yaotian H Songjian L | 2004 | J Bone Joint Surg(Br)2004，86，2： | 1 |
| 18 | Giant-cell tumor of bone; the long-term results of treatment by curettage and bone graft显示文摘 | Zhen W Yaotian H Songjian L | 2004 | J Bone Joint Surg(Br)2004，86，： | 1 |
| 19 | Giant-cell tumour ofbone: the long-term results of treatment by curettage andbone graft 显示文摘 | Zhen W Yaotian H Songjian L | 2004 | J Bone Joint Surg Br2004，86，2： | 1 |
| 20 | Giant cell tumor of bone:The long term results of treatment by curettage and bone graft显示文摘 | Zhen W Yaotian H Songjian L | | 0，，02： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员