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41篇 您的检索式:作者名="Liu Suzhen"
    题名 作者 年代 出处 被引量
12-D P-wave velocity structure of lithosphere in the North China tectonic zone: Constraints from the Yancheng-Baotou deep seismic profile显示文摘We obtained the 2-D P-wave velocity structure of the lithosphere in the eastern North China Craton, Shanxi fault subsidence zone, and Yinchuan-Hetao fault subsidence zone by ray tracking technology based on six groups of clearly identified crustal phases and one group of lithospheric interface reflection phases from seismic recording sections of 21 shots along the 1300-km-long Yancheng-Baotou deep seismic wide-angle reflection/refraction profile. The results indicate significant differences between the lithospheric structure east and west of the Taihang Mountains, which is a gravity-gradient zone as well as a zone of abrupt change in lithospheric thickness and a separation zone of different rock components. East of the Taihang Mountains, the Mesozoic and Cenozoic lithospheric structure of the North China Craton has undergone strong reformation and destruction, resulting in the lithosphere thickness decreasing to 70–80 km. The North China Basin has a very thick Cenozoic sedimentary cover and the deepest point of crystalline basement is about 7.0 km, with the crustal thickness decreasing to about 31.0 km. The crystalline basement of the Luxi uplift zone is relatively shallow with a depth of 1.0–2.0 km and crustal thickness of 33.0–35.0 km. The Subei Basin has a thicker Cenozoic sedimentary cover and the bottom of its crystalline basement is at about 5.0–6.0 km with a crustal thickness of 31.0–32.0 km. The Tanlu fault is a deep fracture which cuts the lithosphere with a significant velocity structure difference on either side of the fault. The Tanlu fault plays an important role in the lithospheric destruction in the eastern part of the North China Craton. West of the Taihang Mountains, the crustal thickness increases significantly. The crust thickness beneath the Shanxi fault depression zone is about 46 km, and there is a low-velocity structure with a velocity of less than 6.1 km s?? in the upper part of the middle crust. Combined with other geophysical study results, our data shows that the lithospheric destruction at the Shaanxi-Shanxi fault depression zone and the Yinchuan-Hetao rift surrounding the Ordos block is non-uniform. The lithosphere thickness is about 80–90 km in the Datong-Baotou area, 75–137 km at the Dingxiang-Shenmu region, and about 80–120 km in the Anyang-Yichuan area. The non-uniform lithospheric destruction may be related to the ancient tectonic zone surrounding the Ordos block. This zone experienced multi-period tectonic events in the long-term process of its tectonic evolution and was repeatedly transformed and weakened. The weakening level is related to the interactions with the Ordos block. The continental collision between the Cenozoic India and Eurasia plates and N-E thrusting by the Qinghai Tibet Plateau block is causing further reformation and reduction of the lithosphere.DUAN YongHong LIU BaoJin ZHAO JinRen LIU BaoFeng ZHANG ChengKe PAN SuZhen LIN JiYan GUO WenBin 2015Science China Earth Sciences2015,58,9:14
2Deep seismic sounding data reveal the crustal structures beneath Zoigê basin and its surrounding folded orogenic belts显示文摘Songpan-Garze massif is located at the turning position of tectonics from the nearly west-east direction to the nearly north-south direction in the northeastern margin of Tibetan Plateau,with Zoigê basin in the centre of the massif.In this paper,we build a crustal structure model of Zoigê basin and its surrounding folded orogenic belts using the deep seismic sounding data in this region.We also discuss structures and properties of the basement in Zoigê basin,tectonic relations between Zoigê upland basin and its surrounding folded orogenic belts,crustal deformation and thickening in the northeastern margin of Tibetan Plateau,and decoupling and relaxing processes in the crust.The results indicate that a special 'Mesozoic basement' is formed of Triassic rocks with high density (2.65-2.75 g/cm3) and high velocity (5.6 km/s) in Zoigê basin.Songpan-Garze tectonic massif was transformed into two types of tectonic units with different crustal structures,i.e.,relatively stable Zoigê upland basin and active folded orogenic belts around the basin,in the course of the crustal material of Tibetan Plateau flowing eastward and obstructed by surrounding stable blocks.The thickening of the crust in the northeastern margin of Tibetan Plateau mainly occurred in the mid and lower crust,and the structure characterized by low velocities and multiple reflectors obviously appears in the folded orogenic belts around Zoigê basin.It implies that the mid and lower crust underwent a strong tectonic deformation in the folded orogenic areas.The thickness of the crust is about 50 km in Zoigê basin and the folded orogenic belts at the both southern and northern sides of Zoigê basin.The 'Mountain root' cannot be identified.It is inferred that during the later orogenic period the eastwards flowing deep materials moved clockwise along the relatively relaxing southern side around the eastern tectonic knot under the obstructing of surrounding rigid massifs,and it resulted in the strong stretching action of the folded orogenic belts around Zoigê basin.JIA ShiXu,ZHANG XianKang,ZHAO JinRen,WANG FuYun,ZHANG ChengKe,XU ZhaoFan,PAN JiShun,LIU Zhi,PAN SuZhen & SUN GuoWei Geophysical Exploration Center,China Earthquake Administration,Zhengzhou 450002,China 2010Science China Earth Sciences2010,53,2:11
3Response of sediment yield to vegetation restoration at a large spatial scale in the Loess Plateau显示文摘The impact of vegetation coverage on erosion and sediment yield in the Loess Plateau has been extensively studied,but the research has been primarily based on observations from slope runoff plots or secondary forest regions;the scaling method remains unresolved when it is applied at a large spatial scale,and it is difficult to apply to regions with severe soil and water loss given the predominance of herbs and shrubs.To date,there is little data on the quantitative impact of changes to vegetation on sediment concentration at a large spatial scale.This paper is based on vegetation information from remote sensing images,measured rainfall and sediment data over nearly 60 years,and results from previous runoff and sediment variation research on the Yellow River.We introduce the concepts of a sediment yield coefficient and the percentage of effective vegetation and erodible area,analyze the impact of different vegetation conditions on the flood sediment concentration and sediment yield,and evaluate the effect of rainfall intensity on sediment yield under different vegetation conditions at the watershed scale.We propose models to evaluate the impact of vegetation on sediment yield in the loess gully hilly region,which are based on remote sensing data and support an application at a large spatial scale.The models can be used to assess sediment reduction that results from the current significant improvement of vegetation in the Loess Plateau.LIU XiaoYan YANG ShengTian DANG SuZhen LUO Ya LI XiaoYu ZHOU Xu 2014Science China(Technological Sciences)2014,57,8:11
4North China sub-craton lithospheric structure elucidated through coal mine blasting显示文摘We present a super-range seismic observation along the >1300-km-long profile passing through the Yinchuan basin and the Ordos block from the blasting point towards the southeast triggered by a large-(dynamite) scale coal blast in the Ningxia Hui Autonomous Region's Helan Mountain (yielded a profile). The seismic wave information from the uppermost mantle reflecting different depths was obtained by the China continental seismic survey. Pn refracted waves from the uppermost mantle were effectively traced up to 500 km and beyond. The stable dynamic and kinematic characteristics of the Pn wave-group indicate that the uppermost mantle below the Ordos block is a gently changing structure with a weak positive gradient. If Pm1, Pm2 waves are considered as the wave groups from the upper mantle, there may be distinct structural strata in the upper-mantle structures with average velocities of 7.70―7.80 km/s and 8.10―8.20 km/s, respectively. Based on the travel-time curve feature of Pm1, Pm2 waves, there may be a certain layer with a reverse velocity between the M1 and M2 interfaces. The depth range indicated by them is about 110―120 km and 200―220 km. These phenomena basically reflect the structural features of the upper-mantle lithosphere in this region. The information obtained may provide meaningful references for surveying North China craton lithospheric structures, as well as under-standing the shapes and structures of different spherical layers within the upper-mantle.ZHAO JinRen ZHANG XianKang WANG FuYun ZHANG ChengKe ZHANG JianShi LIU BaoFeng PAN SuZhen 2009Chinese Science Bulletin2009,54,4:7
5Effect of ZnO nanoparticles on anti-aging properties of polyurethane coating显示文摘Polyurethane nano-coatings were prepared by adding nano-concentrates with nanometer zinc oxide (nano-ZnO) to polyurethane coating. The dispersion state of nanoparticles was observed by TEM images. SEM observation and FT-IR analysis indicate that the nano-coating with 1% ZnO nanoparticles can retain better morphological structure than the nano-coating with 5% ZnO nanoparticles after 500 h accelerated aging. It is known from XPS analysis that the anti-oxidation properties of polyurethane coating are enhanced by 1% ZnO nanoparticles through the nano-network and destroyed by 5% ZnO nanoparticles due to the strong light catalysis. A small change in capacitances of nano-coatings with 1% ZnO nanoparticles before and after accelerated aging indicates that 1% ZnO nanoparticles improve the corrosion resistance of coating, while a large increase in capacitances of nano-coating with 5% ZnO nanoparticles before and after accelerated aging demonstrates that 5% ZnO nanoparticles damage the corrosion resistance of coating.WANG ZhenYu LIU FuChun HAN EnHou KE Wei LUO SuZhen 2009Chinese Science Bulletin2009,54,19:6
6Reference Gene Selection for qRT-PCR Normalization in Iris germanica L.显示文摘Quantitative real-time PCR(qPCR)is an effective and widely used method to analyze expression patterns of target genes.Selection of stable reference genes is a prerequisite for accurate normalization of target gene expression by qRT-PCR.In Iris germanica L.,no studies have yet been published regarding the evaluation of potential reference genes.In this study,nine candidate reference genes were assessed at different flower developmental stages and in different tissues by four different algorithms(GeNorm,NormFinder,BestKeeper,and RefFinder).The results revealed that ACT11(Actin 11)and EF1α(Elongation factor 1 alpha)were the most stable reference genes in different tissues,whereas TUA(Tubulin alpha)and UBC9(Ubiquitin-protein ligase 9)were the most stable ones in different flower developmental stages.UBC9 and ACT11 were the most stable reference genes in all of the tested samples,while the SAMDC(S-Adenosylmethionine decarboxylase)showed the least stability.Finally,to validate the suitability of the selected reference genes,the relative expression level of IgTPS(beta-caryophyllene synthase)was assessed and highlighted the importance of suitable reference gene selection.This work constitutes the first systematic evaluation of potential reference genes in I.germanica and provides guidelines for future research on gene function and molecular mechanisms on I.germanica and related species.Yinjie Wang Yongxia Zhang Qingquan Liu Liangqin Liu Suzhen Huang Haiyan Yuan 2021Phyton-International Journal of Experimental Botany2021,90,1:3
7ZmGRAS11,transactivated by Opaque2,positively regulates kernel size in maize显示文摘Although the genetic basis for endosperm development in maize(Zea mays)has been well studied,the mechanism for coordinating grain filling with increasing kernel size remains elusive.Here,we report that increased kernel size was selected during modern breeding and identify a novel DELLA-like transcriptional regulator,ZmGRAS11,which positively regulates kernel size and kernel weight in maize.We find that Opaque2,a core transcription factor for zein protein and starch accumulation,transactivates the expression of Zm GRAS11.Our data suggest that the Opaque2-Zm GRAS11 module mediates synergistic endosperm enlargement with grain filling.Ye Li Shuai Ma Qianqian Zhao Di Lv Baobao Wang Ke Xiao Jiameng Zhu Suzhen Li Wenzhu Yang Xiaoqing Liu Haiyang Wang Xiaojin Zhou Rumei Chen 2021Journal of Integrative Plant Biology2021,63,12:3
8The clinical and genetic characteristics in children with mitochondrial disease in China显示文摘Mitochondrial disease was a clinically and genetically heterogeneous group of diseases, thus the diagnosis was very difficult to clinicians. Our objective was to analyze clinical and genetic characteristics of children with mitochondrial disease in China. We tested 141 candidate patients who have been suspected of mitochondrial disorders by using targeted next-generation sequencing(NGS), and summarized the clinical and genetic data of gene confirmed cases from Neurology Department, Beijing Children's Hospital, Capital Medical University from October 2012 to January 2015. In our study, 40 cases of gene confirmed mitochondrial disease including eight kinds of mitochondrial disease, among which Leigh syndrome was identified to be the most common type, followed by mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes(MELAS). The age-of-onset varies among mitochondrial disease, but early onset was common. All of 40 cases were gene confirmed, among which 25 cases(62.5%)with mitochondrial DNA(mtDNA) mutation, and 15 cases(37.5%) with nuclear DNA(nDNA) mutation. M.3243A>G(n=7)accounts for a large proportion of mtDNA mutation. The nDNA mutations include SURF1(n=7),PDHA1(n=2),and NDUFV1,NDUFAF6, SUCLA2, SUCLG1, RRM2 B, and C12orf65, respectively.Fang Fang Zhimei Liu Hezhi Fang Jian Wu Danmin Shen Suzhen Sun Changhong Ding Tongli Han Yun Wu Junlan Lv Lei Yang Shufang Li Jianxin Lv Ying Shen 2017Science China(Life Sciences)2017,60,7:2
9The 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
10Hypoxia-Inducible Erythropoietin Signaling in Squamous Dysplasia and Squamous Cell Carcinoma of the Uterine Cervix and Its Potential Role in Cervical Carcinogenesis and Tumor Progression显示文摘Geza Acs Paul J. Zhang Cindy M. McGrath Peter Acs John McBroom Ahmed Mohyeldin Suzhen Liu Huasheng Lu Ajay Verma 2003The American Journal of Pathology2003,,6:2
11Electromagnetic stimulation of the acoustic emissionfor fatigue crack detection of the sheet metal显示文摘Jin Liang Yang Qingxin Liu Suzhen 2010IEEE Transactions on Applied Superconductivity2010,20,3:1
12Cavitation Erosion Behavior of CrMnN Duplex Stainless Steel in Distilled Water and 3% NaCl Solution显示文摘The cavitation erosion (CE) behavior of CrMnN ferrite-austenite duplex stainless steel in distilled water and 3% NaCl solution was investigated by using a magnetostrictive-induced CE facility. The damaged surfaces were observed by scanning electron microscope (SEM). It was found that the CE resistance of CrMnN steel was higher than that of 0Cr13Ni5Mo steel. The mass loss rate of CrMnN steel in distilled water was similar to that in 3% NaCl except at the early stage of CE. The failure mode of ferrite phase was brittle fracture, which had adverse effect on the resistance to CE, while the failure of austenite phase was a ductile failure in CrMnN steel. The excellent resistance to CE was related to the good mechanical properties of austenitic phase and the consumption of CE energy by plastic deformation involving slip and twinning.Suzhen LUO, Yugui ZHENG, Wei LIU, Heming JING, Zhiming YAO and Wei KEState Key Laboratory for Corrosion and Protection, Institute of Metai Research, Chinese Academy of Sciences, Shenyang 110016, China 2003Journal of Materials Science & Technology2003,19,4:1
13Electromag- netic stimulation of the acoustic emission for fatiguecrack detection of the sheet metal 显示文摘Jin Liang Yang Qingxin Liu Suzhen 2010IEEE Transactions on Applied Superconductivity2010,20,3:1
14A parameter free filled function for unconstrained global optimization显示文摘Suzhen Ma Yongjian Yang Huaqun Liu 2009Applied Mathematics and Computation2009,,10:1
15Impact of alkali and heat pretreatment on the pathway of hydrogen production from sewage sludge显示文摘Due to the presence of various types of hydrogen-producing bacteria and numerous organics such as protein and carbohydrate,sewage sludge is a potential material for biological hydrogen production.In this study,two batch tests were carried out to investigate the impact of alkali and heat pretreatment on the pathway of hydrogen production from sewage sludge.The results showed that the heat treatment had a stronger lethal effect on bacteria than the alkali treatment,and could effectively kill hydrogen-consuming bacteria.The heat treatment was more suitable for enriching acidophilic hydrogen-producing bacteria,while the alkali treatment was more suitable for enriching basophilic hydrogen-producing bacteria.A maximum hydrogen production of 10.32 mL/g-COD from alkali pretreated sludge was obtained at an initial pH of 11;while a maximum hydrogen production of 8.94 mL/g-COD from heat pretreated sludge was obtained at an initial pH of 5.Hydrogen production in alkali conditions (pH>9) from alkali pretreated sludge mainly depended on the fermentation of protein by protein-utilizing bacteria;whereas hydrogen production in acidic conditions (pH<6) from heat pretreated sludge mainly depended on the fermentation of carbohydrate by glucose-utilizing bacteria.WEI SuZhen XIAO BenYi LIU JunXin 2010Chinese Science Bulletin2010,55,8:1
16A parameter free filled function for unconstrained global optimization 显示文摘Suzhen Ma Yongjian Yang Huaqun Liu 2010Applied mathematics computation2010,,215:1
17Evolution of technology management system based on self-organization theory显示文摘Industrial and academic interest in how to effectively manage technology resources is increasing as it becomes more and more important.Effective managing of technology resources depends on technology management system,and thus understanding how such system evolves becomes an ongoing research topic.Based on the self-organization theory,this paper constructs an evolution model of technology management system.The simulation results show that the evolution of each of the technology management subsystem is affected by the knowledge growth rate of its own,and it is also affected by the coupling and synergy relationship with other subsystems.Moreover,the coupling and synergy relationship can make the speed of evolution higher than the knowledge growth rate of the subsystem itself.WU Weiwei MA Qian LIU Yexin YANG Ying YUE Suzhen 2021Journal of Systems Engineering and Electronics2021,32,6:1
18Electromagnetic stimulation of the acoustic emission for fatigue crack detection of the sheet metal显示文摘Jin Liang Yang Qingxin Liu Suzhen 0,,03:1
19Electroma- gnetic stimulation of the acoustic emission for fatigue crack detection of the sheet metal显示文摘Jin Liang Yang Qingxin Liu Suzhen 2010IEEE Transac-tions on Applied Superconductivity2010,20,3:1
20Dynamic modeling of magnetic system constructed with giant magnetostrictive thin film using element free galerkin method显示文摘Qingxin Yang Haiyan Chen Suzhen Liu 0,,04:1
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