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| 1 | Gait Study and Pattern Generation of a Starfish-Like Soft Robot with Flexible Rays Actuated by SMAs显示文摘 | Shixin Mao Erbao Dong Hu Jin Min Xu Shiwu Zhang Jie Yang Kin Huat Low | 2014 | Journal of Bionic Engineering2014,11,3: | 26 |
| 2 | Cropland redistribution to marginal lands undermines environmental sustainability显示文摘Cropland redistribution to marginal land has been reported worldwide;however,the resulting impacts on environmental sustainability have not been investigated sufficiently.Here we investigated the environmental impacts of cropland redistribution in China.As a result of urbanization-induced loss of high-quality croplands in south China(~8.5 t ha^(-1)),croplands expanded to marginal lands in northeast(~4.5 t ha^(-1)) and northwest China(~2.9 t ha^(-1)) during 1990-2015 to pursue food security.However,the reclamation in these low-yield and ecologically vulnerable zones considerably undermined local environmental sustainability,for example increasing wind erosion(+3.47%),irrigation water consumption(+34.42%),fertilizer use(+20.02%) and decreasing natural habitats(-3.11%).Forecasts show that further reclamation in marginal lands per current policies would exacerbate environmental costs by 2050.The future cropland security risk will be remarkably intensified because of the conflict between food production and environmental sustainability.Our research suggests that globally emerging reclamation of marginal lands should be restricted and crop yield boost should be encouraged for both food security and environmental benefits. | Wenhui Kuang Jiyuan Liu Hanqin Tian Hao Shi Jinwei Dong Changqing Song Xiaoyong Li Guoming Du Yali Hou Dengsheng Lu Wenfeng Chi Tao Pan Shuwen Zhang Rafiq Hamdi Zherui Yin Huimin Yan Changzhen Yan Shixin Wu Rendong Li Jiuchun Yang Yinyin Dou Wenbin Wu Liqiao Liang Bao Xiang Shiqi Yang | 2022 | National Science Review2022,9,1: | 13 |
| 3 | Robust adaptive matched field processing with environmental uncertainty显示文摘在为被动声纳的沿岸的区域的安静目标的察觉和本地化上的主要挑战是复杂声学的繁殖和表面上的大声的轮船干扰的流行。适应的匹配的地处理能提供能力给空表面干扰,而是失配在之间计算并且由于环境无常驾驶向量的实际数组,和目标和干扰的运动能显著地导致数组获得的损失。为了处理环境失配和目标的问题,运动,一个柔韧的运动赔偿算法和一个系统策划因为适应的匹配的地处理被开发了。试验性的数据的数字模拟和分析证明柔韧的 AMFP 计划能大声压制表面干扰并且改进为在水下的弱移动的性能在复杂的浅水里指向的察觉。 | YANG Kunde MA Yuanliang ZHANG Zhongbing ZOU Shixin | 2006 | Chinese Journal of Acoustics2006,25,2: | 9 |
| 4 | Theoretical study of the N—H···O red-shifted andblue-shifted hydrogen bonds显示文摘Theoretical calculations are performed to study the nature of the hydrogen bonds in complexes HCHO···HNO, HCOOH···HNO, HCHO···NH3, HCOOH···NH3, HCHO···NH2F and HCOOH···NH2F. The geomet- ric structures and vibrational frequencies of these six complexes at the MP2/6-31+G(d,p), MP2/6-311++G(d,p), B3LYP/6-31+G(d,p) and B3LYP/6-311++G(d,p) levels are calculated by standard and counterpoise-corrected methods, respectively. The results indicate that in complexes HCHO···HNO and HCOOH···HNO the N—H bond is strongly contracted and N—H···O blue-shifted hydrogen bonds are observed. While in complexes HCHO···NH3, HCOOH···NH3, HCHO···NH2F and HCOOH···NH2F, the N—H bond is elongated and N—H···O red-shifted hydrogen bonds are found. From the natural bond orbital analysis it can be seen that the X—H bond length in the X—H···Y hydrogen bond is controlled by a balance of four main factors in the opposite directions: hyperconjugation, electron density redistribu- tion, rehybridization and structural reorganization. Among them hyperconjugation has the effect of elongating the X—H bond, and the other three factors belong to the bond shortening effects. In complexes HCHO···HNO and HCOOH···HNO, the shortening effects dominate which lead to the blue shift of the N—H stretching frequencies. In complexes HCHO···NH3, HCOOH···NH3, HCHO···NH2F and HCOOH···NH2F where elongating effects are dominant, the N—H···O hydrogen bonds are red-shifted. | YANG Yong ZHANG WeiJun PEI ShiXin SHAO Jie HUANG Wei GAO XiaoMing | 2007 | Science China Chemistry2007,50,1: | 6 |
| 5 | GOOD p-ARY QUASIC-CYCLIC CODES FROM CYCLIC CODES OVER F_p+vF_p显示文摘This paper introduces a Gray map from(Fp + uFp)n to Fp2n,and describes the relationship between codes over Fp + vFp and their Gray images.The authors prove that every cyclic code of arbitrary length n over Fp + vFp is principal,and determine its generator polynomial as well as the number of cyclic codes.Moreover,the authors obtain many best-known p-ary quasic-cyclic codes in terms of their parameters via the Gray map. | Minjia SHI Shanlin YANG Shixin ZHU | 2012 | Journal of Systems Science & Complexity2012,25,2: | 5 |
| 6 | Is the quality of female auditors really better? Evidence based on the Chinese A-share market显示文摘Unlike previous studies in which a single index was used to measure audit quality, this study establishes a new comprehensive index to measure audit quality via Discretionary Accrual, as estimated by Jones' basic model(1991) and Audit Opinions. The former is used to measure the quality of financial statements, and the latter is used to measure the auditors' independence in the mainstream international literature. We examine whether and how an auditor's gender affects the quality of his or her audits under the framework of empathy theory and gender role socialization theory. Using a large sample of 9861 auditor-firm-year observations from Chinese A-share–listed companies from 2011 to 2015, we find that the audit quality of signed auditors shows significant gender differences: these significant gender differences differ from the findings of previous studies that female auditors could provide a higherquality audit than male auditors; that is, in our study the audit quality of the male auditors exceeds that of the female auditors. After distinguishing the positive and negative directions of the Discretionary Accrual, we find no significant gender differences in audit quality between male and female auditors when the earnings had been adjusted upward by the client; that is, female and male auditors had the same audit risk perception. However, when the client adjusted earnings downward, which indicates a lower audit risk for theauditor, the audit quality of female auditors was significantly lower than that of the male auditors. After controlling for the age and position of the auditors,we also find that the gender differences in the auditors' audit quality decreased significantly or even disappeared when the auditor's age exceeded 45 years and/or their position was manager or above. These results are consistent with the empathy theory and gender role socialization theory. | Shixin Yang Yunguo Liu Qiongdan Mai | 2018 | China Journal of Accounting Research2018,,4: | 4 |
| 7 | Automatic segmentation of foveal avascular zone based on adaptive watershed algorithm in retinal optical coherence tomography angiography images显示文摘The size and shape of the foveal avascular zone(FAZ)have a strong positive correlation with several vision-threatening ret inovascular diseases.The identification,segmentation and analysis of FAZ are of great significance to clinical diagnosis and treatment.We presented an adaptive watershed algorithm to automatically extract F AZ from retinal optical coherence tomography angiography(OCTA)images.For the traditional watershed algorithm,'over-segmentation'is the most common problem.FAZ is often incorrectly divided into multiple regions by redundant'dams'.This paper analyzed the relationship between the'dams'length and the maximum inscribed circle radius of FAZ,and proposed an adaptive watershed algorithm to solve the problem of'over-segmentation'.Here,132 healthy retinal images and 50 diabetic retinopathy(DR)images were used to verify the accuracy and stability of the algorithm.Three ophthal-mologists were invited to make quan titative and qualitative evaluations on the segmentation results of this algorithm.The quantitative evaluation results show that the correlation coffi-cients between the automatic and manual segmentation results are 0.945(in healthy subjects)and 0.927(in DR patients),respectively.For qualitative evaluation,the percentages of'perfect segmentation'(score of 3)and'good segmentation'(score of 2)are 99.4%(in healthy subjects)and 98.7%(in DR patients),respectively.This work promotes the application of watershed algorithm in FAZ segmentation,making it a useful tool for analyzing and diagnosing eye diseases. | Jian Liu Shixin Yan Nan Lu Dongni Yang Chunhui Fan Hongyu Lv Shuanglian Wang in Zhu Yuqian Zhao Yi Wang Zhenhe Ma Yao Yu | 2022 | Journal of Innovative Optical Health Sciences2022,15,1: | 3 |
| 8 | Reliability model of organization management chain of South-to-North Water Diversion Project during construction period显示文摘In order to analyze the indispensability of the organization management chain of the South-to-North Water Diversion Project (SNWDP), two basic forms (series connection state and mixed state of both series connection and parallel connection) of the organization management chain can be abstracted. The indispensability of each form has been studied and is described in this paper. Through analysis of the reliability of the two basic forms, reliability models of the organization management chain in the series connection state and the mixed state of both series connection and parallel connection have been set up. | Feng Jingchun Zhou Yang Hong Yuzhen Zhao Shixin Ren Xiaoqiang | 2008 | Water Science and Engineering2008,1,4: | 3 |
| 9 | HARNACK ESTIMATES FOR WEAK SOLUTIONS OF EQUATIONS OF NON-NEWTONIAN POLYTROPIC FILTRATION显示文摘An intrinsic Harnack estimate and some sup-estimates are established for nonnegative weak solutions of equations of non-Newtonian polytropic filtration ut -div(|Dum |p-2Dum) =0, m(p- 1) < 1, m>0, p> 1. | YANG SHIXIN | 2001 | Chinese Annals of Mathematics,Series B2001,22,1: | 2 |
| 10 | Blue-shifted and red-shifted hydrogen bonds:Theoretical study of the CH3CHO… NH3 complexes显示文摘 | WEUUN ZHANG SHIXIN PEI | 2005 | Journal of Molecular Structure:THEOCHEM2005,732,: | 1 |
| 11 | SREBP-1c overexpression induces triglycerides accumulation through increasing lipid synthesis and decreasing lipid oxidation and VLDL assembly in bovine hepatocytes显示文摘 | Xinwei Li Wentao Yang Chong Xiao Shixin Fu Qinghua Deng Hongyan Ding Zhe Wang Guowen Liu Xiaobing Li | 2014 | Journal of Steroid Biochemistry and Molecular Biology2014,,: | 1 |
| 12 | Intercarrier interference cancellation of OFDM for timevarying channels 显示文摘 | Yang Lan Ming Chen Cheng Shixin | 2004 | In Proc of IEEE Globecom2004,,1: | 1 |
| 13 | Effect of carrier-frequency offset on the performance of grouporthogonal multicarrier CDMA systerns显示文摘 | Yang Wei Liu Junying Cheng Shixin | 2006 | Signal Processing2006,86,: | 1 |
| 14 | Phase-separated bienzyme compartmentalization as artificial intracellular membraneless organelles for cell repair显示文摘Implanting artificial organelles in living cells is capable of correcting cellular dysfunctionalities for cell repair and biomedical applications. In this work, phase-separated bienzyme-loaded coacervate microdroplets are established as a model of artificial membraneless organelles in endothelial dysfunctional cells for the cascade enzymatic production of nitric oxide(NO) with a purpose of correcting cellular NO deficiency. We prepared the coacervate microdroplets via liquid-liquid phase separation of oppositely charged polyelectrolytes, in which glucose oxidase/horseradish peroxidase-mediated cascade reaction was compartmented. After the coacervate microdroplets were implanted in NO-deficient dysfunctional cells, the compartments maintained a phase-separated liquid droplet structure, which facilitated a significant enhancement of NO production in the dysfunctional cells. The recovery of NO production was further exploited to inhibit clot formation in blood plasma located in the cell suspension. This demonstrated a proof-of-concept design of artificial organelles in dysfunctional cells for cell repair and anticoagulation-related medical applications. Our results demonstrate an approach for the construction of coacervate droplets through phase separation for the generation of artificial membraneless organelles, which can be designed to provide an array of functionalities in living organisms that have the potential to be used in the field of cell engineering and medical therapy. | Yanwen Zhang Shixin Wang Yuling Yan Xiaoxiao He Zefeng Wang Shaohong Zhou Xiaohai Yang Kemin Wang Jianbo Liu | 2023 | Science China Chemistry2023,66,3: | 0 |
| 15 | CTCF acetylation at lysine 20 is required for the early cardiac mesoderm differentiation of embryonic stem cells显示文摘The CCCTC-binding factor(CTCF)protein and its modified forms regulate gene expression and genome organization.However,information on CTCF acetylation and its biological function is still lacking.Here,we show that CTCF can be acetylated at lysine 20(CTCF-K20)by CREB-binding protein(CBP)and deacetylated by histone deacetylase 6(HDAC6).CTCF-K20 is required for the CTCF interaction with CBP.A CTCF point mutation at lysine 20 had no effect on self-renewal but blocked the mesoderm differentiation of mouse embryonic stem cells(mESCs).The CTCF-K20 mutation reduced CTCF binding to the promoters and enhancers of genes associated with early cardiac mesoderm differentia-tion,resulting in diminished chromatin accessibility and decreased enhancer-promoter interactions,impairing gene expression.In summary,this study reveals the important roles of CTCF-K20 in regulating CTCF genomic functions and mESC differentiation into mesoderm. | Shixin Gong Gongcheng Hu Rong Guo Jie Zhang Yiqi Yang Binrui Ji Gang Li Hongjie Yao | 2022 | Cell Regeneration2022,11,1: | 0 |
| 16 | SIX1对肿瘤瓦氏效应的转录调控显示文摘文章简介恶性肿瘤不仅是一种基因病,也是一种能量代谢性疾病。即使在氧供应充分的条件下,肿瘤细胞也主要以糖酵解获取能量,称之有氧糖酵解或'Warburg效应'。目前,'Warburg效应'作为肿瘤的一个典型标志已被广泛认可. | Ling Li Yingchun Liang Lei Kang 刘阳 高山 Siyu Chen Ying Li Wenye You Qian Dong Tian Hong Zhifeng Yan Shuai Jin 王涛 Wei Zhao Haixing Mai Jun Huang Xiao Han Quanbo Ji Qi Song Chao Yang Shixin Zhao 徐小洁 叶棋浓 | 2019 | 科学新闻2019,0,2: | 0 |
| 17 | A tandem asymmetric oxidation-oxa-Michael sequence for dearomatization ofβ-naphthols显示文摘A catalytic asymmetric hydroxylative dearomatization reaction has been disclosed,and the products can smoothly transform into spiroannulation adducts by simply treated with a base under mild conditions.Novel in-situ generated magnesium catalytic methods are developed by application of combinational ligands.Related concise transformaitons of the spiroannulation adducts have been carried out. | Linqing Wang Haiyong Zhu Tianyu Peng Yingfan Xu Yanzhe Hou Shixin Li Shiming Pang Hailong Zhang Dongxu Yang | 2022 | Chinese Chemical Letters2022,33,9: | 0 |
| 18 | CAPACITY IMPROVEMENT OF MULTICARRIER DS-CDMA SYSTEM WITH ANTENNA ARRAY显示文摘An antenna array based base station receiver for multicarrier Direct Sequence Code Division Multiple Access (DS-CDMA) system is proposed. The main advantage of the receiver is that the spatial diversity is achieved by combining signals of array elements. Based on the detailed analysis of multiuser interference and noise characteristics, the performance of the proposed receiver is analyzed. Theoretical analysis shows significant performance improvement in terms of system capacity due to the use of antenna arrays compared with the conventional single antenna multicarrier DS-CDMA approach. Simulation results confirm the theoretical analysis. | Yang Wei Li Shiming Tan Zhenhui Cheng Shixin | 2006 | Journal of Electronics(China)2006,23,2: | 0 |
| 19 | THE DISTRIBUTION FUNCTIONS FOR THE LINEAR COMPLEXITY OF PERIODIC SEQUENCES显示文摘Linear complexity is an important standard to scale the randomicity of stream ciphers. The distribution function of a sequence complexity measure gives the function expression for the number of sequences with a given complexity measure value. In this paper, we mainly determine the distribution function of sequences with period over using Discrete Fourier Transform (DFT), where and the characteristics of are odd primes, gcd and is a primitive root modulo The results presented can be used to study the randomness of periodic sequences and the analysis and design of stream cipher. | Yang Minghui Zhu Shixin | 2012 | Journal of Electronics(China)2012,29,3: | 0 |
| 20 | 具单项反应的电泳模型定常问题解的存在唯一性显示文摘应用上下解方法及单调迭代技巧证明了具单项反应的电泳模型定常问题解的存在唯一性. | Yang Shixin (Dept.of Math.,Xiamen Univ., Xiamen 361005) | 1997 | 厦门大学学报(自然科学版)1997,36,1: | 0 |