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| 1 | Simulating and validating the effects of slope frost heaving on canal bed saturated soil using coupled heat-moisture-deformation model显示文摘The lining canals in seasonal frozen soil areas can be severely damaged by frost heaving.The freezing and thawing contributes to the continual change of the temperature field and moisture field beneath lining canal,which will seriously affect the safe operation of the canal.In order to study the frost heaving damage mechanism of lining canal and to solve the associated engineering problems,the permafrost body was regarded as an elastomer,and a three-field,coupled,partial differential equation describing the temperature,moisture and deformation fields for a saturated two-dimensional canal bed was derived and established based on the Harlan model.The coupling equations were discretized using the finite element method in space and the finite difference method in time.The parameters were simplified appropriately based on compliance with the actual conditions and were simulated using finite element software.The results of a sample simulation showed that the simulated results and test results were basically consistent with variation laws,which proved the correctness of the numerical simulation theory and solution methods and the reliability of the calculation.The model can simulate the water,heat and deformation issues in the side slope of saturated canal bed soil in a seasonally frozen area and forecast freezing damage in the canals. | Wang Enliang Fu Qiang Liu Xingchao Li Tianxiao Li Jinling | 2017 | International Journal of Agricultural and Biological Engineering2017，10，2： | 3 |
| 2 | A compact 3D block cutting and contact searching algorithm显示文摘The geometry relation and the contact point-pairs detection between two three dimensional(3D) objects with arbitrary shapes are essential problems involved in discontinuous computation and computational geometry. This paper reported a geometry relation judgment and contact searching algorithm based on Contact Theory. A contact cover search algorithm is proposed to find all the possible contact cover between two blocks. Two blocks can come to contact only on these covers. Each contact cover can define a possible contact point-pair between two blocks. Data structure and flow chart are provided, as well as some examples in details.Contact problems involving concave blocks or parallel planes are considered to be very difficult in past and are solved by this algorithm. The proposed algorithm is compacted and applicable to the discontinuous computation, such as robotic control, rock mass stability, dam stability etc. A 3D cutting and block searching algorithm is also proposed in this study and used to search the outer boundary of the 3D entrance block when 3D concave blocks are encountered. The 3D cutting and block searching algorithm can be also used to form the block system for jointed rock. | LIN XingChao LI Xu WANG XiaoGang WANG YuJie | 2019 | Science China(Technological Sciences)2019，62，8： | 2 |
| 3 | The First High-quality Reference Genome of Sika Deer Provides Insights into High-tannin Adaptation显示文摘Sika deer are known to prefer oak leaves,which are rich in tannins and toxic to most mammals;however,the genetic mechanisms underlying their unique ability to adapt to living in the jungle are still unclear.In identifying the mechanism responsible for the tolerance of a highly toxic diet,we have made a major advancement by explaining the genome of sika deer.We generated the first high-quality,chromosome-level genome assembly of sika deer and measured the correlation between tannin intake and RNA expression in 15 tissues through 180 experiments.Comparative genome analyses showed that the UGT and CYP gene families are functionally involved in the adaptation of sika deer to high-tannin food,especially the expansion of the UGT family 2 subfamily B of UGT genes.The first chromosome-level assembly and genetic characterization of the tolerance to a highly toxic diet suggest that the sika deer genome may serve as an essential resource for understanding evolutionary events and tannin adaptation.Our study provides a paradigm of comparative expressive genomics that can be applied to the study of unique biological features in non-model animals. | Xiumei Xing Cheng Ai Tianjiao Wang Yang Li Huitao Liu Pengfei Hu Guiwu Wang Huamiao Liu Hongliang Wang Ranran Zhang Junjun Zheng Xiaobo Wang Lei Wang Yuxiao Chang Qian Qian Jinghua Yu Lixin Tang Shigang Wu Xiujuan Shao Alun Li Peng Cui Wei Zhan Sheng Zhao Zhichao Wu Xiqun Shao Yimeng Dong Min Rong Yihong Tan Xuezhe Cui Shuzhuo Chang Xingchao Song Tongao Yang Limin Sun Yan Ju Pei Zhao Huanhuan Fan Ying Liu Xinhui Wang Wanyun Yang Min Yang Tao Wei Shanshan Song Jiaping Xu Zhigang Yue Qiqi Liang Chunyi Li Jue Ruan Fuhe Yang | 2023 | Genomics, Proteomics & Bioinformatics2023，21，1： | 1 |
| 4 | CBERS-02 Application Assessment显示文摘As the successor of CBERS-01, CBERS-02 was launched successfully on 21October 2003 and transmitted its first downlink data the next day. According to the OBT (On Board Test) outline, CRESDA cooperated with CAST and many remote sensing organizations in China in implementing the test of the satellite payloads, ground processing system and data application. In this paper, the test is briefly illustrated in three parts: Ⅰ. Satellite Parameters Test (especially the test for payloads), Ⅱ. Payload Image Quality Assessment, and Ⅲ. Data Application Assessment. The results of the test show that the image quality of CBERS-02 is much improved over CBERS-01 and will continue to play a more important role in the society and economic development of China. | GUO Jianning YU Jin MIN Xiangjun LI Xingchao HOU Minghui | 2004 | 空间科学学报2004，24，z1： | 0 |
| 5 | Enhanced room-temperature Naþionic conductivity in Na_(4.92)Y_(0.92)Zr_(0.08)Si_(4)O_(12)显示文摘Developing cost-effective and reliable solid-state sodium batteries with superior performance is crucial for stationary energy storage.A key component in facilitating their application is a solid-state electrolyte with high conductivity and stability.Herein,we employed aliovalent cation substitution to enhance ionic conductivity while preserving the crystal structure.Optimized substitution of Y^(3+)with Zr^(4+)in Na_(5)YSi_(4)O_(12) introduced Naþion vacancies,resulting in high bulk and total conductivities of up to 6.5 and 3.3 mS cm^(-1),respectively,at room temperature with the composition Na_(4.92)Y_(0.92)Zr_(0.08)Si_(4)O_(12)(NYZS).NYZS shows exceptional electrochemical stability(up to 10 V vs.Naþ/Na),favorable interfacial compatibility with Na,and an excellent critical current density of 2.4 mA cm^(-2).The enhanced conductivity of Naþions in NYZS was elucidated using solid-state nuclear magnetic resonance techniques and theoretical simulations,revealing two migration routes facilitated by the synergistic effect of increased Naþion vacancies and improved chemical environment due to Zr^(4+)substitution.NYZS extends the list of suitable solid-state electrolytes and enables the facile synthesis of stable,low-cost Naþion silicate electrolytes. | Aikai Yang Kai Yao Mareen Schaller Enkhtsetseg Dashjav Hang Li Shuo Zhao Qiu Zhang Martin Etter Xingchen Shen Huimin Song Qiongqiong Lu Ruijie Ye Igor Moudrakovski Quanquan Pang Sylvio Indris Xingchao Wang Qianli Ma Frank Tietz Jun Chen Olivier Guillon | 2023 | eScience2023，3，6： | 0 |
| 6 | Effective method for isolating liquid endosperm and improved procedure for subsequent DNA extraction in Brassica napus显示文摘 | Jun LI Shihang FAN Xingchao SUN Zhiyong HU Jing LIU Xiaoyi ZHU Ming ZHENG Fengming SUN Hongli YANG Liang ZHANG Linbin DENG Hongfang LIU Wei HUA | 2016 | Oil Crop Science2016，1，2： | 0 |
| 7 | The Application Achievements And Perspective Of CBERS Series Satellite Imagery显示文摘Since the first China-Brazil Earth Resources Satellite(CBERS-1), launched in 1999,the CBERS data has been applied in many fields extensively.Remarkable social and economic benefits have been achieved. This article presents the application achievements during the past nine years, and gives a perspective for the future.All these applications demonstrate that the CBERS data has been an important data source for resources investigation | Li Xingchao Qi Xueyong Lu Yilin | 2009 | Aerospace China2009，10，1： | 0 |
| 8 | Integrated global analysis in spider flowers illuminates features underlying the evolution and maintenance of C_(4) photosynthesis显示文摘The carbon concentrating mechanism—C_(4) photosynthesis—represents a classic example of convergent evolution,but how this important trait originated and evolved remains largely enigmatic.The spider flower Gynandropsis gynandra is a valuable leafy vegetable crop and medicinal plant that has also been recognized as a C_(4) model species.Here we present a high-quality chromosome-scale annotated genome assembly of G.gynandra through a combination of Oxford Nanopore Technology(ONT),HiFi and Hi-C technology.The 17 super-scaffolds cover 98.66% of the estimated genome(997.61 Mb),with a contig N50 of 11.43 Mb and a scaffold N50 of 51.02 Mb.Repetitive elements occupy up to 71.91% of its genome,and over half are long terminal repeat retrotransposons(LTR-RTs)derived from recent bursts,contributing to genome size expansion.Strikingly,LTR-RT explosion also played a critical role in C_(4) evolution by altering expression features of photosynthesis-associated genes via preferential insertion in promoters.Integrated multiomics analyses of G.gynandra and the ornamental horticulture C3 relative Tarenaya hassleriana reveal that species-specific whole-genome duplication,gene family expansion,recent LTR–RT amplification,and more recent tandem duplication events have all facilitated the evolution of C_(4) photosynthesis,revealing uniqueness of C_(4) evolution in the Cleome genus.Moreover,high leaf vein density and heat stress resilience are associated with shifted gene expression patterns.The mode of C_(3)-to-C_(4) transition found here yields new insights into evolutionary convergence of a complex plant trait.The availability of this reference-grade genomic resource makes G.gynandra an ideal model system facilitating efforts toward C4-aimed crop engineering. | Wei Zhao Jun Li Xingchao Sun Qiwei Zheng Jing Liu Wei Hua Jun Liu | 2023 | Horticulture Research2023，10，8： | 0 |
| 9 | A novel medium-entropy(TiVNb)_(2)AlC MAX phase:Fabrication,microstructure,and properties显示文摘Medium-or high-entropy materials have great potential for applications due to their diverse compo-sitions and unexpected physicochemical properties.Herein,a novel medium-entropy(TiVNb)_(2)AlC was synthesized via hot pressing at 1400℃from three individual M_(2)AlC(M=Ti,V,Nb)MAX phases.The microstructure of(TiVNb)_(2)AlC was characterized from the microscale to the atomic scale by scanning electron microscope microscopy(SEM),scanning transmission electron microscopy(STEM),and energy dispersive spectroscopy(EDS).The results showed that Ti,V,and Nb atoms were fully solid-soluble in the M-sites of the M_(2)AlC MAX phase.Compared with three individual MAX phases,the thermal conduc-tivity of(TiVNb)_(2)AlC was reduced greatly in the temperature range of 293-1473 K,and its mechanical properties(including Young’s modulus,Vickers hardness,and bending strength)were all increased due to the solid solution strengthening and electronic mechanism. | Guangqi He Yi Zhang Pei Yao Xingchao Li Ke Ma Jun Zuo Meishuan Li Changsheng Liu Jingjun Xu | 2023 | Journal of Materials Science & Technology2023，，6： | 0 |
| 10 | Ecological and Low-carbon Technology in Urban Decentralized Treatment and Reclamation of Wastewater显示文摘China's water shortage situation is grim.Deep exploration of non-traditional water resources and relief of contradiction between China's economic development and water resources shortage is the only way to ensure the sustainable development of China.Urban sewage treatment and reclamation is a more stable and widely used method of non-traditional water resources development and utilization.However,urban centralized reclaimed water treatment faces many problems such as high transportation cost and difficulty in laying reusing pipe network.Relatively speaking,decentralized reclaimed water treatment technology has obvious advantages and is gradually getting more attention.In this research,three types of wastewater treatment process featured with urban decentralized low-carbon ecological technology have been mainly introduced.In addition,the operating data of relevant domestic and foreign engineering cases were analyzed from the perspectives of treatment effect,energy consumption level,applicable scale and occupied area,etc.This study considers that these three new sewage processes based on the principle of ecological engineering have the advantages of compact structure,small footprint,low water consumption,stable effluent quality,beautiful appearance and large applicable scale,and are worthy of researching and importing. | YIN Wenchao LIU Yongwang YI Wenting LU Xingchao ZHAO Xin ZHAO Li | 2018 | Journal of Landscape Research2018，10，3： | 0 |
| 11 | Oxidation behavior of non-stoichiometric(Zr,Hf,Ti)C_(x) carbide solid solution powders in air显示文摘Multi-component solid solutions with non-stoichiometric compositions are characteristics of ultra-high temperature carbides as promising materials for hypersonic vehicles.However,for group IV transition-metal carbides,the oxidation behavior of multi-component non-stoichiometric(Zr,Hf,Ti)C_(x)carbide solid solution has not been clarified yet.The present work fabricated four kinds of(Zr,Hf,Ti)C_(x)carbide solid solution powders by free-pressureless spark plasma sintering to investigate the oxidation behavior of(Zr,Hf,Ti)C_(x)in air.The effects of metallic atom composition on oxidation resistance were examined.The results indicate that the oxidation kinetics of(Zr,Hf,Ti)C_(x)are composition dependent.A high Hf content in(Zr,Hf,Ti)C_(x)was beneficial to form an amorphous Zr-Hf-Ti-C-0 oxycarbide layer as an oxygen barrier to enhance the initial oxidation resistance.Meanwhile,an equiatomic ratio of metallic atoms reduced the growth rate of(Zr,Hf,Ti)O_(2)oxide,increasing its phase stability at high temperatures,which improved the oxidation activation energy of(Zr,Hf,Ti)C_(x). | Huilin LUN Yi ZENG Xiang XIONG Ziming YE Zhongwei ZHANG Xingchao LI Haikun CHEN Yufeng LIU | 2021 | Journal of Advanced Ceramics2021，10，4： | 0 |
| 12 | Clinical features and prognostic factors of primary intracranial malignant fibrous histiocytoma:A report of 8 cases and a literature review显示文摘Objective: Primary intracranial malignant fibrous histiocytoma(MFH) is rare. We describe the detailed clinical features of 8 cases and fully review the literature to evaluate several prognostic factors. Methods: Eight patients with pathologically confirmed primary intracranial MFH were retrospectively reviewed. We searched Pub Med for relevant articles with the term 'intracranial malignant fibrous histiocytoma'. Results: Of the 8 patients, 4 were men and 4 were women. Three patients had received previous radiotherapy. The age of the patients ranged from 19 to 69 years, with a median age of 48 years. Most tumors could be totally resected; and only 1 tumor was subtotally resected. Six patients received postoperative radiotherapy and 3 patients received postoperative chemotherapy. Most patients died within the first year after surgery; and only 1 patient was still alive on the date of the last follow-up. We reviewed the literature and included a total of 46 patients in the Kaplan-Meier survival analysis. Young patients(less than 30 years old) seemed to have a better prognosis and survival rate than older patients(more than 30 years old)(log-rank test, P = 0.008).However, sex(P = 0.675), extent of resection(P = 0.934), postoperative radiotherapy(P = 0.592), and postoperative chemotherapy(P = 0.424) did not affect patient prognosis.Conclusions: The prognosis of MFH is usually poor, and most patients die within the first year after surgery. Younger MFH patients(less than 30 years old) seem to have a better prognosis and improved survival compared to older patients. | Peng Li Qiangyi Zhou Zhijun Yang Zhenmin Wang Shiwei Li Xingchao Wang Bo Wang Fu Zhao Pinan Liu | 2016 | Translational Neuroscience and Clinics2016，2，3： | 0 |
| 13 | Post-traumatic cerebrospinal fluid rhinorrhea associated with craniofacial fibrous dysplasia:Case report and literature review显示文摘Objective: Fibrous dysplasia(FD) is an unusual developmental abnormality of the skeleton. When facial and cranial bones are involved in FD, it is termed craniofacial fibrous dysplasia(CFD). Although several reports have reported that CFD has a tendency for spontaneous cerebrospinal fluid(CSF) leakage, there have been no related English-language case reports. We present the first case of post-traumatic CSF rhinorrhea associated with CFD. Methods: A 30-year-old man presented with CSF rhinorrhea after a mild head trauma. Computed tomography cisternogram located a defect in the posterior wall of the right frontal sinus. Imaging examination also showed the evident expansion of multiple skull bones, spinal scoliosis, and multiple local enlargements of ribs.Without café-au-lait cutaneous spots and endocrine abnormalities, polyostotic FD was diagnosed instead of Mc Cune-Albright syndrome(MAS). The patient underwent craniotomy fistula repair surgery. The excised bone was contoured to be thinner to increase the cranial cavity. The patient recovered well and CSF leakage did not recur.But during a nineteen-month follow up, sight in the patient's left eye was decreased.MAS was suspected. Unfortunately the patient refused to take the proposed decompression surgery and laboratory tests of serum hormones. Conclusions: CFD, if the wall of the paranasal sinus is involved and the cranial cavity is decreased, may increase the risk of CSF rhinorrhea after head trauma.Expectant management is recommended in asymptomatic CFD patients even in the presence of optic nerve compression. As MAS may cause more problems, it should be precluded before polyostotic FD is diagnosed. | Peng Li Qiangyi Zhou Zhijun Yang Zhenmin Wang Shiwei Li Xingchao Wang Bo Wang Fu Zhao Pinan Liu | 2016 | Translational Neuroscience and Clinics2016，2，3： | 0 |
| 14 | Rotation errors in numerical manifold method and a correction based on large deformation theory显示文摘Numerical manifold method (NMM) is an effective method for simulating block system, however, significant errors are found in its simulation of rotation problems. Three kinds of errors, as volume expansion, stress vibration, and attenuation of angular velocity, were observed in the original NMM. The first two kind errors are owing to the small deformation assumption and the last one is due to the numerical damping. A large deformation NMM is proposed based on large deformation theory. In this method, the governing equation is derived using Green strain, the large deformation iteration and the open-close iteration are combined, and an updating strategy is proposed. The proposed method is used to analyze block rotation, beam bending, and rock falling problems and the results prove that all three kinds of errors are eliminated in this method. | Ning ZHANG Xu LI Qinghui JIANG Xingchao LIN | 2019 | Frontiers of Structural and Civil Engineering2019，13，5： | 0 |
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