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| 1 | Evolution of coordination degree of eco-economic system and early-warning in the Yangtze River Delta显示文摘根据长江三角洲( YRD )经济的 Landsat TM 数据在 1991 , 2001 和 2008 的地区,这篇文章,作为学习单位在这个区域拿 90 个县,造的空间数据转变模型,生态系统服务价值( ESV )和eco经济的系统( CDES )的协作度当模特儿。在 ArcGIS9.3 的帮助下,集体格子和向量数据为空间分析被处理了。ESV 和 CDES 索引在研究区域表明了在经济开发和 eco 环境系统和它的进化特征之间的关系。而且,这些索引也被用于功能的 zoning 和模式识别。一些结果能如下被显示出。自从 1991,第一,在 YRD 的陆地使用极大地变化了:城市的陆地区域首先从原来的稻土地,干燥陆地,草地,花园阴谋和另外的陆地增加了。第二, ESV 模型从 1991 ~ 2001 并且更慢证明了 YRD 生态的系统的恶化趋势降级趋势在 20012008 期间。另外,来自到城市的区域和干燥土地的水区域和稻地的陆地使用变换能引起大损坏到生态系统稳定,这被说明。第三,自从 1991,在 YRD 的中央、南部的部分的 GDP 在北部分比那高。在中央部分的 GDP 生长率在 19912001 期间在北部分比那高。在中央部分的这生长率在从 2001 ~ 2008 的 YRD 的南部、北的部分也比那高。第四, YRD 能以 CDES 被分成分区的 12 种类型索引。根据它在学习区域的 CDES 索引价值的空间特征,有位于中央部分的低 CDES 价值的 eco 经济的冲突区域用高 CDES 价值由协调 eco 的区域被包围。这说明核心圆周空间结构在 YRD 存在。在 19912001 期间, CDES 价值在学习区域暗示了 eco 经济的系统的会聚的恶化趋势;当它逐渐地在 20012008 期间走了入分叉的恶化和协作的共存时。最后,这份报纸在 YRD 分析了五个分区,包括开始降级的地区,开始同等的地区,连续地降级的地区,衰退协作的地区和支持协作的地区,基于 eco 经济的协作和进化模式。,并且由空间转变模型。 | WANG Zhenbo FANG Chuanglin CHENG Shaowen WANG Jing | 2013 | Journal of Geographical Sciences2013，23，1： | 24 |
| 2 | TiO2 nanosheets with exposed {001} facets for photocatalytic applications显示文摘TiO 2 nanosheets 与高度反应 { 001 } 方面({ 001 } 因为他们的唯一的性质, -TiO2) 在科技的地里吸引了大注意。在最近的年里,许多努力被作了综合 { 001 }-TiO2 并且在光催化探索他们的应用。在这评论,我们在准备总结最近的进步 { 001 } 用不同技术例如的 -TiO2 热水, solvothermal, alcohothermal,化学蒸汽免职(CVD ) ,和大音阶的第五音基于胶化的技术。而且,提高的效率 { 001 } 由碳材料,转变金属的表面免职,和做的非金属的修正的 -TiO2 被考察。然后,应用 { 001 } 在器官的染料的降级的 -TiO2-based 光催化剂,氢进化,二氧化碳(公司 2) 减小,细菌的消毒,和敏化染料的太阳能电池被总结。我们相信这 TiO 2 nanosheets 与上的全部评论 { 001 } 方面能进一步在联系的地里鼓舞研究人员。 | Chimmikuttanda Ponnappa Sajan Swelm Wageh Ahmed. A. Al-Ghamdi Jiaguo Yu Shaowen Cao | 2016 | Nano Research2016，9，1： | 19 |
| 3 | Bidding Strategy of a Virtual Power Plant Considering Carbon-electricity Trading显示文摘Virtual power plant(VPP)aggregates large amounts of distributed energy and controllable loads.The comprehensive consideration of carbon emissions and electricity transactions has great significance in improving the VPP operation’s economic efficiency.In this paper,the bidding strategy of the VPP by considering the carbon-electricity integration trading in an auxiliary service(AS)market is studied.First of all,the basic structure and operating features of the VPP are briefly introduced.Then,the bidding strategy model of carbon-electricity integration trading in an auxiliary service market is proposed and the corresponding objective function and the constraint conditions are also analyzed.Furthermore,the GAMS solver is utilized to give the optimal solution of the bidding strategy model.Finally,the effectiveness of the bidding strategy of a VPP based on the consideration of carbon-electricity integration trading is verified through simulation cases. | Dechang Yang Shaowen He Qiuyue Chen Dingqian Li Hrvoje Pandzic | 2019 | CSEE Journal of Power and Energy Systems2019，5，3： | 14 |
| 4 | Effect of various crop rotations on rice yield and nitrogen use efficiency in paddy–upland systems in southeastern China显示文摘To evaluate the effects of various rotation systems on rice grain yield and N use efficiency, a paddy–upland cropping experiment(2013–2016) was conducted in southeastern China. The experiment was designed using six different rice––winter crop rotations: rice–fallow(RF),rice–wheat(RW), rice–potato with rice straw mulch(RP), rice–green manure(Chinese milk vetch; RC–G), rice–oilseed rape(RO), and rice–green manure crop(oilseed rape with fresh straw incorporated into soil at flowering; RO–G) and three N rates, N0(0 kg N ha-1), N1(142.5 kg N ha-1), and N2(202.5 kg N ha-1). Average rice yields in the RF(5.93 t ha-1) rotation were significantly lower than those in the rotations with winter crops(7.20–7.48 t ha-1)under the N0 treatment, suggesting that incorporation of straw might be more effective for increasing soil N than winter fallow. The rice yield differences among the rotations varied by year with the N input. In general, the grain yields in the RP and RO–G rotations –were respectively 11.6–28.5% and 14.80–37.19% higher than those in the RF in plots with N applied. Increasing the N rate may have tended to minimize the average yield gap between the RF and the other rotations; the yield gaps were 18.55%, 4.14%, and 0.23% in N0, N1, and N2, respectively. However, the N recovery efficiency in the RF was significantly lower than that in other rotations, except for 2015 under both N1 and N2 rates, a finding that implies a large amount of chemical N loss. No significant differences in nitrogen agronomic efficiency(NAE) and physiological efficiency(NPE) were found between the rotations with legume(RC–G) and non–legume(RO and RW) winter crops, a result that may be due partly to straw incorporation. For this reason, we concluded that the return of straw could reduce differences in N use efficiency between rotations with and without legume crops. The degree of synchrony between the crop N demand and the N supply was evaluated by comparison of nitrogen balance degree(NBD) values. The NBD values in the RP and RW were significantly lower than those in the other rotations under both N1 and N2 rates. Thus,in view of the higher grain yield in the RP compared to the RW under the N1 rate, the RP rotation might be a promising practice with comparable grain yield and greater N use efficiency under reduced N input relative to the other rotations. The primary yield components of the RF and RP were identified as number of panicles m-2 and numbers of kernels panicle-1, respectively. The NAE and NPE were positively correlated with harvest index, possibly providing a useful indicator for evaluating N use efficiency. | Song Chen Shaowen Liu Xi Zheng Min Yin Guang Chu Chunmei Xu Jinxiang Yan Liping Chen Danying Wang Xiufu Zhang | 2018 | The Crop Journal2018，6，6： | 13 |
| 5 | Measurement and Analysis of Thermal Conductivity of Rocks in the Tarim Basin,Northwest China显示文摘作为一个参数,那把岩石的热传播性质描述,热电导率为学习沉积的盆的热政体是不可缺少的,并且检索热电导率的高质量的数据是地热的相关研究的基础。光扫描方法这里被使用从 Tarim 盆,有在中国的丰富的烃潜力的最大的 intermontane 盆,和修正为可变的孔的碎屑状的岩石样品被做的水浸透测量 745 件练习核心样品的热传导性。所有测量的值,在这个区域与以前出版的数据结合了,是综合的讨论控制在盆影响岩石的热传导性的因素的分发特征和专业。我们的结果证明岩石的热电导率的价值通常从 1.500 ~ 3.000 W/m ? | LIU Shaowen FENG Changge WANG Liangshu LI Cheng | 2011 | Acta Geologica Sinica(English Edition)2011，85，3： | 10 |
| 6 | Distribution feature of terrestrial heat flow densities in the Bohai Basin,East China显示文摘Temperature logging curves at 8 boreholes and well-testing temperature data at 142 boreholes are used to determine geotemperature gradients in the Bohai Basin. The thermal conductivities of 86 rock samples are measured at laboratory and the effects of porosity and temperature are corrected to obtain conductivities in situ. Terrestrial heat flow densities at 76 wells are determined based on these data. The distribution of the heat flow indicates that the terrestrial heat flow in the Bohai Basin is relatively high with an average value of 65.8 mW/m2. This characteristic is caused by the tectonic evolution of the basin. During Cenozoic, the litho-sphere stretched intermittently and the crust thinned so that heat conducted from the mantle increased and formed thermal abnormity at depth beneath the basin. | WANG Liangshu LIU Shaowen XIAO Weiyong LI Cheng LI Hua GUO Suiping LIU Bo LUO Yuhui CAI Dongsheng | 2002 | Chinese Science Bulletin2002，47，10： | 10 |
| 7 | Receiver function analysis for seismic structure of the crust and uppermost mantle in the Liupanshan area, China显示文摘A portable broadband seismic array was deployed from the northeast Tibetan Plateau to the southwest Ordos block, China. The seismic structure of the crust and uppermost mantle of the Liupanshan area is obtained using receiver function analysis of teleseismic body waves. The crustal thickness and Poisson's ratios are estimated by stacking the weighted amplitudes of receiver functions. Our results reveal complex seismic phases in the Liupanshan area, implying intense deformation at the boundary between the Tibetan Plateau and the Ordos block. The average crustal thickness is 51.5 km in the northeast Tibetan Plateau, 53.5 km in the Liupan Mountain and 50 km in the southwest Ordos block, resulting in a concave Moho beneath the Liupan Mountain. The Poisson's ratio of the Liupanshan area varies between 0.27-0.29, higher than the value of 0.25-0.26 to the east and west of the Liupan Mountain, suggesting partial melting in the lower crust. The variance in Poisson's ratio across the Liupan Mountain indicates notable changes in the crustal composition and mechanical properties, which may be formed by the northeastward flow of the Tibetan lower crust during the India-Eurasia collision. | TONG WeiWei WANG LiangShu MI Ning XU MingJie LI Hua YU DaYong LI Cheng LIU ShaoWen LIU Mian Eric SanDvol | 2007 | Science China Earth Sciences2007，50，z2： | 9 |
| 8 | The relationship between concentration of growth hormone in serum and microangiopathy in patients with diabetes mellitus.显示文摘Therelationshipbetwenconcentrationofgrowthhormoneinserumandmicroangiopathyinpatientswithdiabetesmelitus.ChenMingsheng,YuWenbi... | Chen Mingsheng, Yu Wenbin, Hu Shaowen, et al. Clinical Laboratovy, Xijing Hospital, Xi’an 710032, China. | 1998 | Chinese Medical Journal1998，，1： | 9 |
| 9 | Supplemental magnolol or honokiol attenuates adverse effects in broilers infected with Salmonella pullorum by modulating mucosal gene expression and the gut microbiota显示文摘Background:Salmonella pullorum is one of the most harmful pathogens to avian species.Magnolol and honokiol,natural compounds extracted from Magnolia officinalis,exerts anti-inflammatory,anti-oxidant and antibacterial activities.This study was conducted to evaluate the effects of dietary supplemental magnolol and honokiol in broilers infected with S.pullorum.A total of 360 one-day-old broilers were selected and randomly divided into four groups with six replicates:the negative control group(CTL),S.pullorum-infected group(SP),and the S.pulloruminfected group supplemented with 300 mg/kg honokiol(SPH)or magnolol(SPM).Results:The results showed that challenging with S.pullorum impaired growth performance in broilers,as indicated by the observed decreases in body weight(P<0.05)and average daily gains(P<0.05),along with increased spleen(P<0.01)and bursa of Fabricus weights(P<0.05),serum globulin contents,and the decreased intestine villus height and villus/crypt ratios(P<0.05).Notably,supplemental magnolol and honokiol attenuated these adverse changes,and the effects of magnolol were better than those of honokiol.Therefore,we performed RNA-Seq in ileum tissues and 16S rRNA gene sequencing of ileum bacteria.Our analysis revealed that magnolol increased the α-diversity(observed species,Chao1,ACE,and PD whole tree)and β-diversity of the ileum bacteria(P<0.05).In addition,magnolol supplementation increased the abundance of Lactobacillus(P<0.01)and decreased unidentified Cyanobacteria(P<0.05)both at d 14 and d 21.Further study confirmed that differentially expressed genes induced by magnolol and honokiol supplementation enriched in cytokine-cytokine receptor interactions,in the intestinal immune network for IgA production,and in the cell adhesion molecule pathways.Conclusions:Supplemental magnolol and honokiol alleviated S.pullorum-induced impairments in growth performance,and the effect of magnolol was better than that of honokiol,which could be partially due to magnolol’s ability to improve the intestinal microbial and mucosal barrier. | Fang Chen Hao Zhang Encun Du Qiwen Fan Na Zhao Feng Jin Wei Zhang Wanzheng Guo Shaowen Huang Jintao Wei | 2022 | Journal of Animal Science and Biotechnology2022，13，1： | 9 |
| 10 | Intelligent Manufacturing for the Process Industry Driven by Industrial Artificial Intelligence显示文摘Based on the analysis of the characteristics and operation status of the process industry,as well as the development of the global intelligent manufacturing industry,a new mode of intelligent manufacturing for the process industry,namely,deep integration of industrial artificial intelligence and the Industrial Internet with the process industry,is proposed.This paper analyzes the development status of the existing three-tier structure of the process industry,which consists of the enterprise resource planning,the manufacturing execution system,and the process control system,and examines the decision-making,control,and operation management adopted by process enterprises.Based on this analysis,it then describes the meaning of an intelligent manufacturing framework and presents a vision of an intelligent optimal decision-making system based on human–machine cooperation and an intelligent autonomous control system.Finally,this paper analyzes the scientific challenges and key technologies that are crucial for the successful deployment of intelligent manufacturing in the process industry. | Tao Yang Xinlei Yi Shaowen Lu Karl HJohansson Tianyou Chai | 2021 | Engineering2021，7，9： | 8 |
| 11 | Target delineation and dose prescription of adaptive replanning intensity-modulated radiotherapy for nasopharyngeal carcinoma显示文摘Dear Editor,Intensity-modulated radiotherapy(IMRT)has a distinct advantage of high conformity and is an appropriate tech-nique for treating nasopharyngeal carcinoma(NPC).Pre-vious studies have demonstrated that anatomical changes in the external contour,shape,and location of the target and critical structures are significant and result in dosi-metric changes[1,2].Patients’quality of life and clini-cal outcomes might be improved by IMRT replanning[3].Therefore,replanning strategies should be consid-ered instead of single-planning strategies throughout the entire course of radiotherapy.However,there are sub-stantial controversies on(1)the appropriate time for tar-get redelineation,(2)how to modify the target volumes,and(3)how to evaluate the modified plans.The present study provides a new perspective in replanning with regard to these three aspects. | Dehuan Xie Wanqin Cheng Shaowen Lv Rui Zhong Lei Wang Jiang Hu Mingli Wang Shaomin Huang Yong Su Yunfei Xia | 2019 | Cancer Communications2019，39，1： | 7 |
| 12 | Clinical antiangiogenic effect of recombinant adenovirus-p53 combined with hyperthermia for advanced cancer显示文摘Objective:To assess the safety and clinical antiangiogenic effect of recombinant adenovirus-p53(rAd-p53)combined with hyperthermia plus or not plus radiotherapy in advanced cancer.Methods:Expression of Vascular epithelial growth factor(VEGF)after intratumoral injection of rAd-p53was assayed by immunohistochemistry(IHC)imaging.Forty-four patients with advanced cancer were enrolled into this clinical study.The patients were intratumorally injected with rAd-p53(Gendicine)at a dose of 1×1012vp once a week,with a total of 4-54(mean 7.7)times.Total of 4-29(mean 8.5)times of hyperthermia was given to the patients.Among the 44 patients,30 patients were concurrently added with radiotherapy of a total dose 30-76 Gy/15-38 f/3-8 w(mean 58 Gy).Results:Before and after intratumoral injection of rAd-p53,the VEGF IHC positive cell scores were 2.80and 1.50,respectively(P=0.031).The treatment of rAd-p53 combined with hyperthermia plus or not plus radiotherapy in advanced cancer achieved CR rate of 13.60%(6/44),and PR rate of 29.6%(13/44),and thus the effective rate was 43.2%.In addition to 6 patients with CR,19 patients(19/38,50.0%)had low density area(LDA)of more than 50%area on CT image within tumor indicating tumor tissue necrosis.Conclusions:Our data indicate that rAd-p53 inhibits VEGF expression and angiogenesis,and promotes tumor necrosis and shrinkage induced by hyperthermia plus or not plus radiotherapy in advanced cancer. | Xiaofan Li Shaowen Xiao Yongheng Li Shanwen Zhang | 2013 | Chinese Journal of Cancer Research2013，25，6： | 6 |
| 13 | Influence of Tourists′ Environmental Tropisms on Their Attitudes to Tourism and Nature Conservation in Natural Tourist Destinations: A Case Study of Jiuzhaigou National Park in China显示文摘People′s environmental tropism has an effect on their understanding of tourism-nature relationship,and also influences their attitudes to natural resources utilization and environmental protection.Taking Jiuzhaigou National Park of China as a study case,the authors conducted some quantitative analyses with the tools of SPSS 16.0 and LISREL 8.7,to explore the influence of tourists′ environmental tropism on their attitudes to tourism and nature conservation in the natural tourist destination.Three hypotheses and the theoretic model of influences of tourists′ environmental tropism on their attitudes to tourism and nature conservation have been tested and accepted based on the Structural Equation Model analysis on survey data collected in Jiuzhaigou National Park of China.Some conclusions were drawn as follows: 1) tourists′ human-prioritized concept influences their cognition to tourism-nature relationship.This concept has a positive influence on their supportive attitudes to tourism,but a negative influence on their attitudes to nature conservation;2) tourists′ human-nature coordination concept has a positive influence on their supportive attitudes to both tourism and nature conservation,especially to the latter.This paper generally proves that human′s environmental tropism does have an influence on their attitudes to tourism and nature conservation in natural tourist destinations. | CHENG Shaowen ZHANG Jie LU Shaojing XU Feifei ZHANG Honglei | 2011 | Chinese Geographical Science2011，21，3： | 5 |
| 14 | Parametric study of turbine NGV blade lean and vortex design显示文摘The effects of blade lean and vortex design on the aerodynamics of a turbine entry nozzle guide vane(NGV) are considered using computational fluid dynamics. The aim of the work is to address some of the uncertainties which have arisen from previous studies where conflicting results have been reported for the effect on the NGV. The configuration was initially based on the energy efficient engine turbine which also served as the validation case for the computational method. A total of 17 NGV configurations were evaluated to study the effects of lean and vortex design on row efficiency and secondary kinetic energy. The distribution of mass flow ratio is introduced as an additional factor in the assessment of blade lean effects. The results show that in the turbine entry NGV, the secondary flow strength is not a dominant factor that determines NGV losses and therefore the changes of loading distribution due to blade lean and the associated loss mechanisms should be regarded as a key factor. Radial mass flow redistribution under different NGV lean and twist is demonstrated as an addition key factor influencing row efficiency. | Zhang Shaowen David G.Mac Manus Luo Jianqiao | 2016 | Chinese Journal of Aeronautics2016，29，1： | 5 |
| 15 | An equivalence canonical form of a matrix triplet over an arbitrary division ring with applications显示文摘We in this paper give a decomposition concerning the general matrix triplet over an arbitrary divisionring F with the same row or column numbers. We also design a practical algorithm for the decomposition of thematrix triplet. As applications, we present necessary and suficient conditions for the existence of the generalsolutions to the system of matrix equations DXA = C1, EXB = C2, F XC = C3 and the matrix equation AXD + BY E + CZF = Gover F. We give the expressions of the general solutions to the system and the matrix equation when thesolvability conditions are satisfied. Moreover, we present numerical examples to illustrate the results of thispaper. We also mention the other applications of the equivalence canonical form, for instance, for the compressionof color images. | WANG QingWen van der WOUDE J. W. YU ShaoWen | 2011 | Science China Mathematics2011，54，5： | 4 |
| 16 | Chromosomal microarray analysis vs.karyotyping for fetal ventriculomegaly:a meta-analysis显示文摘Background:Chromosomal abnormalities are important causes of ventriculomegaly(VM).In mild and isolated cases of fetal VM,obstetricians rarely give clear indications for pregnancy termination.We aimed to calculate the incidence of chromosomal abnormalities and incremental yield of chromosomal microarray analysis(CMA)in VM,providing more information on genetic counseling and prognostic evaluation for fetuses with VM.Methods:The Chinese language databases Wanfang Data,China National Knowledge Infrastructure,and China Biomedical Literature Database(from January 1,1991 to April 29,2020)and English language databases PubMed,Embase,and Cochrane Library(from January 1,1945 to April 29,2020)were systematically searched for articles on fetal VM.Diagnostic criteria were based on ultrasonographic or magnetic resonance imaging(MRI)assessment of lateral ventricular atrium width:≥10 to<15 mm for mild VM,and≥15 mm for severe VM.Isolated VM was defined by the absence of structural abnormalities other than VM detected by ultrasonography or MRI.R software was used for the meta-analysis to determine the incidence of chromosomal abnormalities and incremental yield of CMA in VM,and the combined rate and 95%confidence interval(CI)were calculated.Results:Twenty-three articles involving 1635 patients were included.The incidence of chromosomal abnormalities in VM was 9%(95%CI:5%-12%)and incremental yield of CMA in VM was 11%(95%CI:7%-16%).The incidences of chromosomal abnormalities in mild,severe,isolated,and non-isolated VM were 9%(95%CI:4%-16%),5%(95%CI:1%-11%),3%(95%CI:1%-6%),and 13%(95%CI:4%-25%),respectively.Conclusions:Applying CMA in VM improved the detection rate of abnormalities.When VM is confirmed by ultrasound or MRI,obstetricians should recommend fetal karyotype analysis to exclude chromosomal abnormalities.Moreover,CMA should be recommended preferentially in pregnant women with fetal VM who are undergoing invasive prenatal diagnosis.CMA cannot completely replace chromosome karyotype analysis. | Yan Sun Weiyuan Zhang Zhiwen Wang Likui Guo Shaowen Shi | 2022 | Chinese Medical Journal2022，，3： | 3 |
| 17 | Satellite-based Observational Study of the Tibetan Plateau Vortex:Features of Deep Convective Cloud Tops显示文摘In this study, an east-moving Tibetan Plateau vortex(TPV) is analyzed by using the ERA-5 reanalysis and multi-source satellite data, including FengYun-2 E, Aqua/MODIS and CALIPSO. The objective is to demonstrate:(i) the usefulness of multi-spectral satellite observations in understanding the evolution of a TPV and the associated rainfall, and(ii) the potential significance of cloud-top quantitative information in improving Southwest China weather forecasts. Results in this study show that the heavy rainfall is caused by the coupling of an east-moving TPV and some low-level weather systems [a Plateau shear line and a Southwest Vortex(SWV)], wherein the TPV is a key component. During the TPV's life cycle, the rainfall and vortex intensity maintain a significant positive correlation with the convective cloud-top fraction and height within a 2.5?radius away from its center. Moreover, its growth is found to be quite sensitive to the cloud phases and particle sizes. In the mature stage when the TPV is coupled with an SWV, an increase of small ice crystal particles and appearance of ring-and U/V-shaped cold cloud-top structures can be seen as the signature of a stronger convection and rainfall enhancement within the TPV. A tropopause folding caused by ageostrophic flows at the upper level may be a key factor in the formation of ring-shaped and U/V-shaped cloud-top structures. Based on these results, we believe that the supplementary quantitative information of an east-moving TPV cloud top collected by multi-spectral satellite observations could help to improve Southwest China short-range/nowcasting weather forecasts. | Yi-Xuan SHOU Feng LU Hui LIU Peng CUI Shaowen SHOU Jian LIU | 2019 | Advances in Atmospheric Sciences2019，36，2： | 3 |
| 18 | Dynamic analysis of a rotating tapered cantilever Timoshenko beam based on the power series method显示文摘The mathematical modeling of a rotating tapered Timoshenko beam with preset and pre-twist angles is constructed. The partial differential equations governing the six degrees, i.e., three displacements in the axial, flapwise, and edgewise directions and three cross-sectional angles of torsion, flapwise bending, and edgewise bending, are obtained by the Euler angle descriptions. The power series method is then used to investigate the natural frequencies and the corresponding complex mode functions. It is found that all the natural frequencies are increased by the centrifugal stiffening except the twist frequency, which is slightly decreased. The tapering ratio increases the first transverse,torsional, and axial frequencies, while decreases the second transverse frequency. Because of the pre-twist, all the directions are gyroscopically coupled with the phase differences among the six degrees. | Xiaodong YANG Shaowen WANG Wei ZHANG Zhaohong QIN Tianzhi YANG | 2017 | Applied Mathematics and Mechanics(English Edition)2017，38，10： | 3 |
| 19 | Geothermal investigation of the thickness of gas hydrate stability zone in the north continental margin of the South China Sea显示文摘The exploration of unconventional and/or new energy resources has become the focus of energy research worldwide,given the shortage of fossil fuels.As a potential energy resource,gas hydrate exists only in the environment of high pressure and low temperature,mainly distributing in the sediments of the seafloor in the continental margins and the permafrost zones in land.The accurate determination of the thickness of gas hydrate stability zone is essential yet challenging in the assessment of the exploitation potential.The majority of previous studies obtain this thickness by detecting the bottom simulating reflectors(BSRs) layer on the seismic profiles.The phase equilibrium between gas hydrate stable state with its temperature and pressure provides an opportunity to derive the thickness with the geothermal method.Based on the latest geothermal dataset,we calculated the thickness of the gas hydrate stability zone(GHSZ) in the north continental margin of the South China Sea.Our results indicate that the thicknesses of gas hydrate stability zone vary greatly in different areas of the northern margin of the South China Sea.The thickness mainly concentrates on 200–300 m and distributes in the southwestern and eastern areas with belt-like shape.We further confirmed a certain relationship between the GHSZ thickness and factors such as heat flow and water depth.The thickness of gas hydrate stability zone is found to be large where the heat flow is relatively low.The GHSZ thickness increases with the increase of the water depth,but it tends to stay steady when the water depth deeper than 3 000 m.The findings would improve the assessment of gas hydrate resource potential in the South China Sea. | WANG Yanmin LIU Shaowen HAO Feifei ZHAO Yunlong HAO Chunyan | 2017 | Acta Oceanologica Sinica2017，36，4： | 3 |
| 20 | A Megatheropod Tooth from the Early Cretaceous of Fusui, Guangxi, Southern China显示文摘A nearly complete right maxillary or left dentary tooth(NHMG 10858) from the Lower Cretaceous Xinlong Formation of the Napai Basin, Fusui County, Guangxi, southern China, is described. The tooth is large in size, with a CBL of 37 mm. Given the geological age and its crown morphology, including the size, it is most likely that the tooth belongs to a carcharodontosaurid. The recovered specimen represents one of the largest theropod teeth hitherto reported from the Early Cretaceous of Asia. | MO Jinyou HUANG Chaolin XIE Shaowen Buffetaut ERIC | 2014 | Acta Geologica Sinica(English Edition)2014，88，1： | 3 |
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