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Preparation and Characterization of Carbon Microspheres From Waste Cotton Textiles By Hydrothermal Carbonization

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Journal of Renewable Materials 2019年第12期7卷 1309-1319页

作者： Yongfang Zhang wensheng hou Hong Guo Sheng Shi Jinming Dai College of Textile Engineering Taiyuan University of TechnologyTaiyuan030024China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan030024China

Carbon microspheres were prepared from waste cotton fibers by hydrothermal carbonization(HTC)with the addition of copper sulphate in this *** important influence factors,temperature,concentration of copper sulphate,resident time were explored *** smooth and regular carbon microspheres could be formed at 330°C with 0.15 wt%copper sulphate after 6 h from waste cotton *** crystal structures of cotton fibers were destructed in a short resident time with 0.15 wt%copper sulphate from SEM images and XRD patterns of solid *** strategy provides a new,mild and efficient method to prepare carbon microspheres from waste cotton fibers by *** spectra verified that the abundant functional groups existed on the surface of synthesized carbon *** XPS and element analysis results,the copper sulphate participated in the forming process of carbon microspheres *** presence of copper sulphate in the carbon microspheres provided a possibility for the application in antibacterial ***,the catalytic mechanism of copper sulphate on the hydrolysis and carbonization of waste cotton fibers were also *** conclusion,the copper sulphate is an efficient agent for preparing carbon microspheres by HTC from waste cotton fibers.

关键词： Carbon microsphere waste cotton fiber copper sulphate hydrothermal carbonization

Detection of kinematics parameters of index finger movement with high-speed video camera

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仪器仪表学报 2008年第2期29卷 240-243页

作者： hou wensheng Jiang Yingtao Wu Xiaoying Zheng Xiaolin Zheng Jun Ye Yihong Department of Biomedical Engineering Chongqing University Chongqing 400044 China Department of Electrical and Computer Engineering University of Nevada Las Vegas NV 89154 USA Computer Science Department Queens College City University of New York Flushing NY 11367 USA

Synergic movement of finger's joints provides human hand tremendous dexterities,and the detection of kinematics parameters is critical to describe and evaluate the kinesiology functions of the *** present work is the attempt to investigate how the angular velocity and angular acceleration of the joints of index finger vary with respect to time during conducting a motor task.A high-speed video camera has been employed to visually record the movement of index finger,and miniaturized(5-mm diameter) reflective markers have affixed to the subject's index finger on the side close to thumb and dorsum of thumb at different joint *** images have been reviewed frame by frame to get the coordinate values of each joint,and the angular displacements,angular velocities and angular acceleration can be obtained with triangle *** experiment results show that the methods here can detect the kinematics parameters of index finger joints during moving,and can be a valid route to study the motor function of index finger.

关键词：运动学参数食指移动高速摄影机角速度协同作用

NaOH/Urea Swelling Treatment and Hydrothermal Degradation of Waste Cotton Fiber

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Journal of Renewable Materials 2020年第6期8卷 703-713页

作者： Lixia Gao Sheng Shi wensheng hou Shuhua Wang Zhifeng Yan Chao Ge College of Textile Engineering Taiyuan University of TechnologyJinzhong030600China Jihua 3542 Textile Company Limited Xiangyang441000China

In this study,waste cotton fabric was used as cellulose raw material and pretreated in aqueous NaOH/urea solution system to investigate the effect of NaOH/urea pretreatment solution on the hydrolysis of cotton *** cotton fiber was pretreated with different conditions of aqueous NaOH/urea solution,and the pretreated cotton fiber was hydrolyzed under the same conditions as the original cotton *** results of characterization analysis showed that water retention value of pretreated cotton fiber was higher than that of unpretreated ***,the cotton fiber presented both a convoluted structure and a coarser surface,XRD results suggested that the crystallinity degree of cellulose decreased dramatically,more cellulose II appeared,and the hydrogen bond is *** the different pretreatment conditions,the pretreatment effect was the best when the reaction temperature was 0°C,the solid-liquid ratio was 2:50,and the NaOH/urea ratio was 7:*** hydrolysis experiments of pretreated and unpretreated cotton fibers showed that when the hydrothermal temperature was 230°C,the heat preservation was 2 h,and the hydrochloric acid concentration was 5 wt.%,the glucose yield reached 29.99%.H+could catalyze the hydrolysis of cotton fiber more effectively due to damage to crystal structure and hydrogen bonds.

关键词： Waste cotton fibers NaOH/urea pretreatment hydrolyze recycling and reusing

Bone Fracture Reduction Surgery-aimed Bone Connection Robotic Hand

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Journal of Bionic Engineering 2021年第2期18卷 333-345页

作者： Jianxing Yang Yan Xiong Xiaohong Chen Yuanxi Sun wensheng hou Rui Chen Shandeng Huang Long Bai State Key Laboratory of Mechanical Transmission Chongqing UniversityChongqing 400044China Department of Orthopedic Daping HospitalArmy Medical UniversityChongqing 400042China Key Laboratory of Biorheological Science and Technology Ministry of EducationBioengineering CollegeChongqing UniversityChongqing 400044China NoahTron Intelligence Medtech(Hangzhou)Co. Ltd.Hangzhou 310051China

Bone connection with robot is an important topic in the research of robot assisted fracture reduction *** the method to achieve bone-robot connection in current robots,requirements on reliability and low trauma can not be satisfied at the same *** this paper,the design,manufacturing,and experiments of a novel Bone Connection Robotic Hand(BCRH)with variable stiffness capability are carried out through the bionics research on human hand and the principle of particle ***’s variable stiffness characteristic is a special connection between“hard connection”and“soft connection”,which is different from the existing *** maximizes the reliability of bone-robot connection while minimizes trauma,meets the axial load requirement in clinical practice,and effectively shortens the operating time to less than 40 s(for mode 1)or 2 min(for mode 2).Meanwhile,a theoretical analysis of bone-robot connection failure based on particle jamming is carried out to provide references for the research in this paper and other related studies.

关键词： bone fracture reduction surgery surgical robot bone-robot connection robot assisted surgery orthopedic surgery

The RUBY reporter for visual selection in soybean genome editing

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aBIOTECH 2024年第2期5卷 209-213页

作者： Li Chen Yupeng Cai Xiaoqian Liu Weiwei Yao Shuiqing Wu wensheng hou State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Ministry of Agriculture Key Laboratory of Soybean Biology(Beijing) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Current systems to screen for transgenic soybeans(Glycine max)involve laborious molecular assays or the expression of fluorescent markers that are difficult to see in soybean ***,a visual system for early screening of transgenic plants would increase the efficiency of crop improvement by genome *** RUBY reporter system,which consists of three genes encoding betalain biosynthetic enzymes,leading to the accumulation of purple pigment in transgenic tissue,has been employed in some plants and dikaryon ***,we assessed the RUBY reporter for visual verification during soybean *** show that RUBY can be expressed in soybean,allowing for visual confirmation of transgenic events without the need for specialized *** with visible accumulation of purple pigment in any tissue were successfully transformed,confirming the accuracy of the RUBY system as a visual *** also assessed the genetic stability of the transgene across generations,which can be performed very early,using the cotyledons of the ***-free seedlings have a distinct green color,facilitating the selection of genome-edited but transgene-free soybean seedlings for *** the RUBY system,we quickly identified a transgene-free Gmwaxy mutant in the T1 *** system thus provides an efficient and convenient tool for soybean genome editing.

关键词： Soybean RUBY Visual reporter Genome editing Biotechnology

See the color,see the seed:GmW1 as a visual reporter for transgene and genome editing in soybean

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The Crop Journal 2023年第1期11卷 311-315页

作者： Li Chen Shan Yuan Yupeng Cai Weiwei Yao Qiang Su Yingying Chen Jialing Zhang wensheng hou National Center for Transgenic Research in Plants Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Ministry of Agriculture Key Laboratory of Soybean Biology(Beijing) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

A fast and efficient recognition method of transgenic lines will greatly improve detection efficiency and reduce *** this study,we successfully identified the transgenic soybean plants by the *** isolated a GmW1 gene encoding a flavonoid 3'5'-hydroxylase from a soybean cultivar ZH42(purple flower).We found that purple flowers occurred in the overexpression lines in the Jack and Williams 82 backgrounds(white flower).All plants with purple flowers were positive,and this trait seems stably inherited in the *** have also obtained the editing plants,which were classified into three types according to the different flower colors *** analyzed the phenotype and the homozygous types of the T_*** also found that a correspondence between flower color and stem *** study provides a visible color reporter on soybean *** can be quickly and early to identify the transgenic soybean plants by stem color of seedlings,which substantially reduces the amount of labor and cost.

关键词： Soybean GmW1 Color Transgenic lines Genome editing

Soybean hairy roots produced in vitro by Agrobacterium rhizogenes-mediated transformation

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The Crop Journal 2018年第2期6卷 162-171页

作者： Li Chen Yupeng Cai Xiujie Liu Chen Guo Shi Sun Cunxiang Wu Bingjun Jiang Tianfu Han wensheng hou National Center for Transgenic Research in Plants Institute of Crop Science Chinese Academy of Agricultural Sciences Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing) Institute of Crop Science Chinese Academy of Agricultural Sciences

Soybean is one of the world's most important oil and protein crops. Efficient transformation is a key factor for the improvement of soybean by genetic modification. We describe an optimized protocol for the Agrobacterium rhizogenes-mediated transformation of soybean and the induction of hairy root development in vitro. Cotyledons with 0.5-cm hypocotyls were cut from 5-day-old seedlings and used as explants. After infection and co-cultivation,hairy roots were produced in induction culture medium after 10–12 days. Using this method, 90%–99% of the infected explants of five different cultivars produced hairy roots within one month. Observations using reporter constructs showed that 30%–60% of the hairy roots induced were transformed. Based on high transformation efficiency and short transformation period, this method represents an efficient and rapid platform for study of soybean gene function.

关键词： Agrobacterium rhizogenes Hairy root Protocol Soybean Transformation

Design of a virtual reality rehabilitation system for upper limbs that inhibits compensatory movement

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Medicine in Novel Technology and Devices 2022年第1期13卷 102-109页

作者： Bowen Xiao Lin Chen Xin Zhang Zengyong Li Xiaoyu Liu Xiaoying Wu wensheng hou Key Laboratory of Biorheological Science and Technology of Ministry of Education Chongqing UniversityChongqing400044China Chongqing Medical Electronics Engineering Technology Research Center Chongqing UniversityChongqing400044China Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijing100083China National Research Center for Rehabilitation Technical Aids Beijing100176China

Stroke is currently the main cause of death and disability among the elderly in our *** to medical research,a considerable number of patients with physical disabilities can be recovered through rehabilitation ***,traditional motor rehabilitation is a continuous,repeated and slow process,and patients tend to feel bored and lose motivation for *** this paper,we developed a virtual reality rehabilitation system based on Kinect,which is a vision capture sensor,for patients with movement disorders who are at or above Brunnstrom Stage III and have certain motor *** the management platform of the system,physician can obtain the patient's personal information,formulate and adjust the training *** can control the role in the virtual scene through Kinect sensor,and complete the training action according to the *** system collects the user's motion data in real time and detect the *** system will adaptively evolve to guide the patient to self-correct the compensatory *** the training,the system will evaluate the patients based on the their training *** experiments are also carried out to verify the accuracy of the range of motion and the effectiveness of virtual *** is proved that the virtual reality upper limb rehabilitation training system studied in this paper is reliable,stable,and can guide users to complete the training action and improve the rehabilitation effect.

关键词： Kinect Virtual reality Compensatory pattern Assessment

Genomic dissection of widely planted soybean cultivars leads to a new breeding strategy of crops in the post-genomic era

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The Crop Journal 2021年第5期9卷 1079-1087页

作者： Xinpeng Qi Bingjun Jiang Tingting Wu Shi Sun Caijie Wang Wenwen Song Cunxiang Wu wensheng hou Qijian Song Hon-Ming Lam Tianfu Han MARA Key Laboratory of Soybean Biology(Beijing) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences The Chinese University of Hong KongShatinHong KongChina Soybean Genomics and Improvement Lab USDA-ARSBeltsvilleMD 20705USA

Soybeans specially the widely planted cultivars have been dramatically improved in agronomic performance and is well adapted to local planting environments after long-time domestication and *** the unique genomic features of popular cultivars will help to understand how soybean genomes have been modified through *** re-sequenced 134 soybean cultivars that were released and most widely planted over the last century in *** analyses established that these cultivars comprise two geographically distinct sub-populations:Northeast China (NE) versus the HuangHuai-Hai River Valley and South China (HS).A total of 309 selective regions were identified as being impacted by geographical *** HS sub-population exhibited higher genetic diversity and linkage disequilibrium decayed more rapidly compared to the NE *** study the association between phenotypic differences and geographical origins,we recorded the vegetative period under different growing conditions for two years,and found that clustering based on the phenotypic data was closely correlated with cultivar geographical *** iteratively calculating accumulated genetic diversity,we established a platform panel of cultivars and have proposed a novel breeding strategy named "Potalaization"for selecting and utilizing the platform cultivars that represent the most genetically diversity and the highest available agronomic performance as the "plateau"for accumulating elite loci and traits,breeding novel widely adapted cultivars,and upgrading breeding *** addition to providing new genomic information for the soybean research community,the "Potalaization"strategy that we devised will also be practical for integrating the conventional and molecular breeding programs of crops in the post-genomic era.

关键词： Soybean Widely planted cultivars Genomic re-sequencing Breeding strategy