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46篇 您的检索式:作者名="Yongheng Yang"
    题名 作者 年代 出处 被引量
1Paleostructural geomorphology of the Paleozoic central uplift belt and its constraint on the development of depositional facies in the Tarim Basin显示文摘Inclined eastward and consisting of the Hetianhe, Hetianhedong, Tazhong paleouplifts and Bachu paleoslope, the central paleouplift belt in the Tarim Basin was a large composite paleouplift and paleoslope belt with complicated palaeogeomorphic features during the Middle to early Late Ordovician. A number of paleostructural geomorphic elements have been identified in the paleouplift belt and surrounding areas, such as the high uplift belts, the faulted uplift platforms, the marginal slopes and slope break zones flanking the paleouplift belt, the surrounding shelf slopes or low relief ramps, the shelf slope break zones and deep basin plains. They exerted great influence on the development of paleogeography of the basin. The marginal slopes and slope break zones flanking the uplift belt constrained the formation and deposition of the high-energy facies including reefal and shoal deposits during the Late Ordovician, which comprise the major reservoirs of the Lower Paleozoic in the basin. Toward the end of the Ordovician, the Tazhong paleouplift hinged westward and became a westward-dipped nose as the southeastern margin of the basin was strongly compressed and uplifted. The tectono-paleogeomorphic framework of the central northern basin during the Early Silurian and the Late Devonian to Early Carboniferous changed remarkably in topography from the initial low in east and high in west to high in northeast and low in southwest. The major paleogeomorphic elements developed in these periods included the strong eroded uplift high, the uplift marginal slope, the gentle ramp of the depression margin and the depression belt. The sandstones of the lowstand and the early transgressive systems tracts were deposited along the uplift marginal slopes and the gentle ramps of the depressions comprise the prolific reservoirs in the basin. The study indicates that the distribution patterns of the unconformities within the basin are closely related to the paleogeomorphic features and evolution of the paleouplift belt. From the high uplift belt to the depression, we found the composed unconformity belts at the high uplift, the truncated and onlap triangular unconformity belts along the uplift marginal slopes, the minor angular unconformity or discontinuity belts along the transitional zones from the uplift marginal slopes to depression and the conformity belt in the central depression. The truncated and the onlap triangular unconformity belts are the favorable zones for the formation of stratigraphic trap reservoirs.LIN ChangSong YANG HaiJun LIU JingYan PENG Li CAI ZhenZhong YANG XiaoFa YANG YongHeng 2009Science China Earth Sciences2009,52,6:52
2Palaeogeomorphology and its control on the development of sequence stratigraphy and depositional systems of the Early Silurian in the Tarim Basin显示文摘The Silurian in the Tarim Basin was deposited on the basement deformed by the Caledonian tectonic movements at the end of the Late Ordovician. The development and distribution of sedimentary sequences of the Early Silurian have been clearly controlled by the palaeogeomorphology of the Late Ordovician. Based on unconformity characteristics and distribution of erosion, several zones can be differentiated including a high uplifted erosion zone, a transitional slope zone and a depression zone. The central and west Tabei Uplift zones show high angular unconformity and intense erosion. The Tarim Basin in the late Ordovician shows characteristics of higher in the west, lower in the east while higher in the south, lower in the north. The Early Silurian mainly developed transgressive and highstand systems tracts on the whole, while the lowstand systems tract only developed partly below the slope break. The palaeogeomorphology controlled the clastic source supply and deposit distribution. Braided delta system and tidal flat–estuary system were deposited. The duration of uplifting of the Tazhong paleouplift was longer than that of the Tabei paleo-uplift, and deposition was later. This led to the lower and middle members of the Kepingtage Formation missing in that area. As a large-scale transgression occurred during the deposition period of the upper member of the Kepingtage Formation, sediment from the west of the basin was transported and deposited by tides and waves, forming tidal–marine debris systems above the uplift. Proximal alluvial fan and fan delta coarse clastic deposits developed in proximal uplift zone in the east and southeast of the basin, and braided delta put forward to the transitional zone between the edge of uplift and the sea. Large-scale tidal channel, sub-distributary channel and mouth bar of the delta front can form favorable reservoirs, and they are primary targets for oil and gas exploration. This research on sequence–depositional systems development and distribution controlled by palaeogeomorphology is significant in guiding the prediction of reservoir sandstones.Liu Jingyan Lin Changsong Cai Zhenzhong Zhu Yongfeng Yang Yongheng Peng Li Si Baoling Huang Zhen Li Huanpu Xu Yingcai Su Zhenzhen 2010Petroleum Science2010,7,3:13
3The U-Pb chronologic evidence and sedimentary responses of Silurian tectonic activities at northeastern margin of Tarim Basin显示文摘U-Pb ages of Devonian detrital zircons from Tabei Uplift have been determined through LA-ICP-MS test technology.The results revealed that most zircon ages concentrate on 460-414 Ma,especially around 436-423 Ma,indicating possible occurrences of strong tectonic events at the northern margin of Tarim Basin during that period.Combined with previous researches on the basin marginal orogenic belts,intense tectonic activities developed at the northeast margin of Tarim Basin and its obvious sedimentary responses in basin during the end of Ordovician to Early-Middle Silurian are discussed.These include(1) several unconformities within the Late Ordovician-Silurian,showing truncation,erosion,and onlap characteristics,which reflected the local uplift formed during the surrounding extrusion process;(2) the Silurian fluvial delta system from northeast to southwest in Keping,Yingmaili,Hade,and Caohu areas,which reflected the partial uplift at the northeast margin and provided clastic supply to basin;and(3) as indicated by heavy mineral analysis,the Silurian sediments came mainly from the recycles of orogenic belts provenance,which indicated the compress tectonic setting.In addition,a wide range of red mudstone layer distribution in the upper part of the Silurian may be closely related to the surrounding tectonic uplift and the rapid decline of sea levels.LIU JingYan YANG HaiJun YANG YongHeng CAI ZhenZhong LIU YongQuan RUI ZhiFeng SU ZhenZhen 2012Science China Earth Sciences2012,55,9:7
4Circular RNA circStag1 promotes bone regeneration by interacting with HuR显示文摘Postmenopausal osteoporosis is a common bone metabolic disorder characterized by deterioration of the bone microarchitecture,leading to an increased risk of fractures.Recently,circular RNAs(circ RNAs)have been demonstrated to play pivotal roles in regulating bone metabolism.However,the underlying functions of circ RNAs in bone metabolism in postmenopausal osteoporosis remain obscure.Here,we report that circ Stag1 is a critical osteoporosis-related circ RNA that shows significantly downregulated expression in osteoporotic bone marrow mesenchymal stem cells(BMSCs)and clinical bone tissue samples from patients with osteoporosis.Overexpression of circ Stag1 significantly promoted the osteogenic capability of BMSCs.Mechanistically,we found that circ Stag1 interacts with human antigen R(Hu R),an RNA-binding protein,and promotes the translocation of Hu R into the cytoplasm.A high cytoplasmic level of Hu R led to the activation of the Wnt signaling pathway by stabilizing and enhancing low-density lipoprotein receptor-related protein 5/6(Lrp5/6)andβ-catenin expression,thereby stimulating the osteogenic differentiation of BMSCs.Furthermore,overexpression of circ Stag1 in vivo by circ Stag1-loaded adeno-associated virus(circ Stag1-AAV)promoted new bone formation,thereby preventing bone loss in ovariectomized rats.Collectively,we show that circ Stag1 plays a pivotal role in promoting the regeneration of bone tissue via Hu R/Wnt signaling,which may provide new strategies to prevent bone metabolic disorders such as postmenopausal osteoporosis.Gaoyang Chen Canling Long Shang Wang Zhenmin Wang Xin Chen Wanze Tang Xiaoqin He Zhiteng Bao Baoyu Tan Jin Zhao Yongheng Xie Zhizhong Li Dazhi Yang Guozhi Xiao Songlin Peng 2022Bone Research2022,10,3:7
5Hardening Effect on Machined Surface for Precise Hard Cutting Process with Consideration of Tool Wear显示文摘During hard cutting process there is severe thermodynamic coupling effect between cutting tool and workpiece, which causes quenching effect on finished surfaces under certain conditions. However, material phase transformation mechanism of heat treatment in cutting process is different from the one in traditional process, which leads to changes of the formation mechanism of damaged layer on machined workpiece surface. This paper researches on the generation mechanism of damaged layer on machined surface in the process of PCBN tool hard cutting hardened steel Cr12 Mo V. Rules of temperature change on machined surface and subsurface are got by means of finite element simulation. In phase transformation temperature experiments rapid transformation instrument is employed, and the effect of quenching under cutting conditions on generation of damaged layer is revealed. Based on that, the phase transformation points of temperature under cutting conditions are determined. By experiment, the effects of cutting speed and tool wear on white layer thickness in damaged layer are revealed. The temperature distribution law of third deformation zone is got by establishing the numerical prediction model, and thickness of white layer in damaged layer is predicted, taking the tool wear effect into consideration. The experimental results show that the model prediction is accurate, and the establishment of prediction model provides a reference for wise selection of parameters in precise hard cutting process. For the machining process with high demanding on surface integrity, the generation of damaged layer on machined surface can be controlled precisely by using the prediction model.YUE Caixu LIU Xianli MA Jing LIU Zhaojing LIU Fei YANG Yongheng 2014Chinese Journal of Mechanical Engineering2014,27,6:3
6Power Electronics:The Enabling Technology for Renewable Energy Integration显示文摘The markedly increased integration of renewable energy in the power grid is of significance in the transition to a sustainable energy future.The grid integration of renewables will be continuously enhanced in the future.According to the International Renewable Energy Agency(IRENA),renewable technology is the main pathway to reach zero carbon dioxide(CO_(2))emissions by 2060.Power electronics have played and will continue to play a significant role in this energy transition by providing efficient electrical energy conversion,distribution,transmission,and utilization.Consequently,the development of power electronics technologies,i.e.,new semiconductor devices,flexible converters,and advanced control schemes,is promoted extensively across the globe.Among various renewables,wind energy and photovoltaic(PV)are the most widely used,and accordingly these are explored in this paper to demonstrate the role of power electronics.The development of renewable energies and the demands of power electronics are reviewed first.Then,the power conversion and control technologies as well as grid codes for wind and PV systems are discussed.Future trends in terms of power semiconductors,reliability,advanced control,grid-forming operation,and security issues for largescale grid integration of renewables,and intelligent and full user engagement are presented at the end.Zhongting Tang Yongheng Yang Frede Blaabjerg 2022CSEE Journal of Power and Energy Systems2022,8,1:3
7The chromosome-level Stevia genome provides insights into steviol glycoside biosynthesis显示文摘Stevia(Stevia rebaudiana Bertoni)is well known for its very sweet steviol glycosides(SGs)consisting of a common tetracyclic diterpenoid steviol backbone and a variable glycone.Steviol glycosides are 150–300 times sweeter than sucrose and are used as natural zero-calorie sweeteners.However,the most promising compounds are biosynthesized in small amounts.Based on Illumina,PacBio,and Hi-C sequencing,we constructed a chromosome-level assembly of Stevia covering 1416 Mb with a contig N50 value of 616.85 kb and a scaffold N50 value of 106.55 Mb.More than four-fifths of the Stevia genome consisted of repetitive elements.We annotated 44,143 high-confidence protein-coding genes in the high-quality genome.Genome evolution analysis suggested that Stevia and sunflower diverged~29.4 million years ago(Mya),shortly after the whole-genome duplication(WGD)event(WGD-2,~32.1 Mya)that occurred in their common ancestor.Comparative genomic analysis revealed that the expanded genes in Stevia were mainly enriched for biosynthesis of specialized metabolites,especially biosynthesis of terpenoid backbones,and for further oxidation and glycosylation of these compounds.We further identified all candidate genes involved in SG biosynthesis.Collectively,our current findings on the Stevia reference genome will be very helpful for dissecting the evolutionary history of Stevia and for discovering novel genes contributing to SG biosynthesis and other important agronomic traits in future breeding programs.Xiaoyang Xu Haiyan Yuan Xiaqing Yu Suzhen Huang Yuming Sun Ting Zhang Qingquan Liu Haiying Tong Yongxia Zhang Yinjie Wang Chunxiao Liu Lei Wu Menglan Hou Yongheng Yang 2021Horticulture Research2021,8,1:2
8Single-cell RNA sequencing reveals Nestin+active neural stem cells outside the central canal after spinal cord injury显示文摘Neural stem cells(NSCs)in the spinal cord hold great potential for repair after spinal cord injury(SCI).The ependyma in the central canal(CC)region has been considered as the NSCs source in the spinal cord.However,the ependyma function as NSCs after SCI is still under debate.We used Nestin as a marker to isolate potential NSCs and their immediate progeny,and characterized the cells before and after SCI by single-cell RNA-sequencing(scRNA-seq).We identified two subgroups of NSCs:the subgroup located within the CC cannot prime to active NSCs after SCI,while the subgroup located outside the CC were activated and exhibited the active NSCs properties after SCI.We demonstrated the comprehensive dynamic transcriptome of NSCs from quiescent to active NSCs after SCI.This study reveals that Nestin+cells outside CC were NSCs that activated upon SCI and may thus serve as endogenous NSCs for regenerative treatment of SCI in the future.Muya Shu Xiaoyu Xue Hu Nie Xianming Wu Minghan Sun Lianyong Qiao Xing Li Bai Xu Zhifeng Xiao Yannan Zhao Yongheng Fan Bing Chen Jixiang Zhang Ya Shi Yaming Yang Falong Lu Jianwu Dai 2022Science China(Life Sciences)2022,65,2:2
9Lineage tracing reveals the origin of Nestin-positive cells are heterogeneous and rarely from ependymal cells after spinal cord injury显示文摘Nestin is expressed extensively in neural stem/progenitor cells during neural development, but its expression is mainly restricted to the ependymal cells in the adult spinal cord. After spinal cord injury(SCI), Nestin expression is reactivated and Nestinpositive(Nestin;) cells aggregate at the injury site. However, the derivation of Nestin;cells is not clearly defined. Here, we found that Nestin expression was substantially increased in the lesion edge and lesion core after SCI. Using a tamoxifen inducible CreER(T2)-loxP system, we verified that ependymal cells contribute few Nestin;cells either to the lesion core or the lesion edge after SCI. In the lesion edge, GFAP+astrocytes were the main cell type that expressed Nestin;they then formed an astrocyte scar.In the lesion core, Nestin;cells expressed αSMA or Desmin, indicating that they might be derived from pericytes. Our results reveal that Nestin;cells in the lesion core and edge came from various cell types and rarely from ependymal cells after complete transected SCI, which may provide new insights into SCI repair.Xiaoyu Xue Muya Shu Zhifeng Xiao Yannan Zhao Xing Li Haipeng Zhang Yongheng Fan Xianming Wu Bing Chen Bai Xu Yaming Yang Weiyuan Liu Sumei Liu Jianwu Dai 2022Science China(Life Sciences)2022,65,4:2
10The leaf extract of crofton weed(Eupatorium adenophorum)inhibits primary root growth by inducing cell death in maize root border cells显示文摘The extract of crofton weed(Eupatorium adenophorum) inhibits seed germination and weed growth;however,the physiological mechanisms underlying the effect of crofton weed extract on the modulation of seedling growth and root system development remain largely unclear.In this study,we investigated the effects of the leaf extract of crofton weed(LECW) on primary root(PR) growth in maize seedlings.Treatment with LECW markedly inhibited seed germination and seedling growth in a dose-dependent manner.Physiological analysis indicated that the LECW induced reactive oxygen species(ROS) accumulation in root tips,thereby leading to cell swelling and deformation both in the root cap and elongation zone of root tips,finally leading to cell death in root border cells(RBCs) and PR growth inhibition.The LECW also inhibited pectin methyl esterase(PME) activity,thereby decreasing the RBC number.Taken together,our results indicated that the LECW inhibited PR growth by inducing ROS accumulation and subsequent cell death in RBCs.The present study provides a better understanding of how the LECW modifies root system development and provides insight for evaluating the toxicity of crofton weed extracts in plants.Jinhu Ma Xinxin Feng Xiaohuan Yang Yongheng Cao Weifeng Zhao Liangliang Sun 2020Plant Diversity2020,42,3:2
11Facile synthesis and electrochemical properties of MnO_2/carbon nanotubes显示文摘The poor electrical conductivity of MnO_2 limits its use as an electrode material.To overcome this limitation,we report an easy and rapid approach to deposit nanosized MnO_2 onto multi-wall carbon nanotubes functionalized with hydroxyl groups(MWCNTs-OH) by chemical reduction of KMnO_4 with MnSO_4 in aqueous solution under ambient conditions.Characterization with XRD and TEM reveals that the obtained MnO_2/MWCNTs-OH composite is nanocrystalline and partially covered by MnO_2 nanosheets with a thickness of 1-3 nm at a MnO_2 loading of 20 wt%.Cyclic voltammetry(CV) and galvanostatic charge-discharge measurements reveal that the MnO_2/MWCNTs-OH composite with a MnO_2 loading of 20 wt% has a relatively high specific capacitance of 234 F/g at a scan rate of 2mV/s and exhibits good cycling stability.Furthermore,the oxygen reduction reaction(ORR) shows that MnO_2/MWCNTs-OH composite may have potential applications as a non-noble metal electrocatalyst in fuel cells and metal-air batteries.Yang Lv Huanqiao Li Yan Xie Shushuang Li Jia Li Yongheng Xing Yujiang Song 2014Particuology2014,12,4:2
12The constituents of core competencies and firm performance: evidence from high-technology firms in china显示文摘Yonggui Wang Hing-Po Lo Yongheng Yang 2004Journal of Engineering and Technology Management2004,,4:1
13On the Development of Public-Private Partnerships in Transitional Economics: An Explana- tory Framework 显示文摘Yongheng Yang 2013Public Administration Review2013,,2:1
14Long noncoding RNA PVT1 promotes tumor growth and predicts poor prognosis in patients with diffuse large B-cell lymphoma显示文摘Dear Editor,Diffuse large B-cell lymphoma(DLBCL)is the most common and aggressive subtype of non-Hodgkin lymphoma(NHL),accounting for about 40%of all NHL cases[1].Lacking symptoms at early time and efficient therapeutic methods made DLBCL one of the most life-threatening types of hematopoietic malignancy[2,3].Therefore,identifying novel therapeutic biomarker for early detection and prognosis prediction is urgently needed.Ruifeng Yang Tingting Shao Manmei Long Yongheng Shi Qiang Liu Linhua Yang Ming Zhan 2020Cancer Communications2020,40,10:1
15An Integrated Framework for Customer Value and Customer-relationship-management Performance: A Customer-based Perspective from China 显示文摘Wang Yonggui Hing Po Lo Renyong Chi Yongheng Yang 2004Managing Service Quality2004,14,23:1
16An integrated framework for customer value and customer-relationship management performance:a customer-based perspective from China显示文摘Yonggui Wang Lo Hing Po Chi Renyong Yang Yongheng 0,,2:1
17Distribution of natural and anthropogenic thallium in the soils in an industrial pyrite slag disposing area 显示文摘Yang Chunxia Chen Yongheng Peng Ping an 2005The Science of the Total Environment2005,341,:1
18An Inte-grated Framework for Service Quality,Customer Value,Satisfaction:Evidence from China’s TelecommunicationIndustry显示文摘Wang Yinggui Lo Hing-Po Yang Yongheng 2004Information Systems Frontiers2004,,4:1
19Synthesis and optical properties of halogen-doped ZnO phosphor显示文摘Zhenwei Tao Xibin Yu Xiaoyan Fei Jie Liu Yongheng Zhao Honge Wu Guangqian Yang Shiping Yang Liangzhun Yang 2008Materials Letters2008,,17:1
20An integrated framework for customer value and customerrelationship management performance:A customer-based perspective from china显示文摘Wang Yonsgui Lo Hing Po Chi Renyong Yongheng Yang 2004Managing Service Quality2004,114,23:1
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