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Chinese Journal of Chemistry 2021年第5期39卷 1310-1318页

作者： Jingyu Zhao yarn li Ping Na School of Chemical Engineering and Technology Tianjin UniversityTianjin 300354China

We reported a facile and green hydrothermal strategy to tailor the carbon dots layer(CDL)and oxygen vacancies(Vo)modified on Ti0_(2),by using ascorbic acid as CDL precursor and Vo *** amorphous CDL was uniformly coated on the surface of the as prepared CDL@TiO_(2-x) composites by Ti-O-C *** the increase of carbon content,the amorphous CDL gradually became thicker,while the Vo concentration first increased and then decreased.1.5 CDL@TiO_(2-x) possessed the highest Vo *** the decoration of CDL and Vo,the photoreduction properties of CDL@TiO_(2-x) composites were significantly *** simulated solar light and visible light,the reaction rates of 1.5 CDL@TiO_(2-x) were 9.6 times and 216 times higher than that of pure Ti0_(2)/***,the results discovered that CDL and Vo influenced the properties of CDL@TiO_(2-x) composites in different *** primary function of CDL was to improve the utilization of solar light,and the enhancement of the charge transfer ability was decided by Vo and CDL *** work provides a new strategy for the modification of Ti0_(2) and sheds new light on the respective role of CDL and Vo when they coexist in the catalyst.

关键词： Carbon Oxygen vacancies Titanium dioxide Photocatalysis Chromium

Low-complexity transmit antenna selection algorithm for massive MIMO

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The Journal of China Universities of Posts and Telecommunications 2020年第5期27卷 63-68页

作者： li Xinmin li Guomin liu Yang Guo Tian li Pu li yarn School of Communication and Information Engineering Xi'an University of Science and TechnologyXi’an 710054China School of Electrical and Control Engineering Xi’an University of Science and TechnologyXi’an 710054China

Massive multiple input multiple output(MIMO)systems can increase capacity and reliability ***,extremely high hardware costs and computational complexity lead to the demand for reasonable antenna *** at the problem that the traditional antenna selection algorithm based on maximizing sum capacity has large complexity and worse bit error rate(BER)performance,a two-step selection algorithm is proposed,which selects a part of the antennas based on the norm-based antenna selection(NBS)firstly,and then selects the antenna based on maximizing capacity via convex *** simulation results show that the improved algorithm has better BER performance than the traditional *** the same time,it reduces computational complexity greatly.

关键词： massive MIMO transmit antenna selection convex optimization

Alizarin-TiO2 LMCT Complex with Oxygen Vacancies:An Efficient Visible light Photocatalyst for Cr(Ⅵ)Reduction

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Chinese Journal of Chemistry 2020年第11期38卷 1332-1338页

作者： Meichen li yarn li Jingyu Zhao Mingcheng li Yongchuan Wu Ping Na School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China School of Materials and Chemical Engineering Anhui Jianzhu UniversityHefeiAnhui 230601China School of Chemistry Biologyand Materials ScienceEast China University of TechnologyNonchangJiangxi 330013China

of main observation and conclusion The AL-P25 composites(AL=alizarin,P25=nano titanium dioxide)with oxygen vacancies were synthesized by a simple hydrothermal method and applied for the photoreduction of Cr(VI)under visible *** AL-P25 composites were characterized by scanning electron microscopy,X-ray diffraction,X-ray photoelectron spectroscopy analysis,Fourier transform infrared spectrometer,thermo-gravimetric analysis,UV-vis diffuse reflectance spectroscopy,photoluminescence spectroscopy and electron paramagnetic resonance *** results suggested that the AL-P25 composites were successfully prepared,and alizarin was linked to P25 via Ti—O—C ***-P25 composites represented excellent photoreduction efficiency on Cr(VI)under visible light,which was 99.4%after 60 min of ***,a photocatalytic mechanism of AL-P25 composites was proposed that ligand-metal charge transfer(LMCT)process between alizarin and P25 effectively enhances separation efficiency of photogenerated electrons and holes.

关键词： spectroscopy. composites visible

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粉煤灰冶炼硅铝铁合金可行性进展综述

铁合金 2020年第4期51卷 45-48页

作者：于波都兴红李雅茹邓洋洋邢鹏飞赵岩东北大学冶金学院辽宁沈阳110819

介绍了在对现有研究资料进行整合、总结的基础上,对粉煤灰冶炼硅铝铁合金的可行性进行了阐述。明确了该方法至今未能工业化的原因:反应机理不够明确;冶炼过程工艺参数(冶炼温度、冶炼时间、原料入炉方式及加料顺序)不系统。指出了今后... 详细信息

介绍了在对现有研究资料进行整合、总结的基础上,对粉煤灰冶炼硅铝铁合金的可行性进行了阐述。明确了该方法至今未能工业化的原因:反应机理不够明确;冶炼过程工艺参数(冶炼温度、冶炼时间、原料入炉方式及加料顺序)不系统。指出了今后为推进粉煤灰冶炼硅铝铁合金工业化要做的工作。

关键词：粉煤灰电热还原硅铝铁合金

Putative TBCC Domain-containing Protein Regulates Asexual and Pathogenesis of Phytophthora capsici

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Putative TBCC Domain-containing Protein Regulates Asexual an...

中国植物病理学会2023年学术年会

作者： GUO yarn QIU Xiang GUO Hengyuan WANG Huirong LAI Bingting li Fenqi OU Caihuan li linying liANG Qifu CHEN Qinghe Justice Norvienyeku Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests Ministry of EducationCollege of Plant ProtectionHainan University

Vegetable and fruit crop production is an economically viable industry that can provide stable employment for the global youth population,especially in rural and peri-urban areas in developing and middle-income economies ***,destructions caused by pathogenic microbes,particularly oomycete species,including Phytophthora capsici,the causal agent of Phytophthora blight disease in essential vegetables and fruit crops,including pepper,tomato,squash,watermelon,faba bean,among *** intrinsic and extrinsic molecular mechanisms that regulate the morphogenesis,pathogenesis,and broad host range characteristicin the filamentous and soil-borne phytophthora blight pathogen are yet to be fully ***,we deployed transcriptomics,functional genetics,phenotyping,and biochemical strategies to functionally characterize the contributions of a novel gene coding for a hypothetical protein containing the Tubulin binding cofactor C and acordingly annotated as PcTBCC in the physiopathological development of *** to other Tubulin-binding cofactors identified in the polycyclic phytophthora blight pathogen,transcriptomic examinations revealed a significant upregulation in the expression patterns of PcTBCC during pathogen-host *** phenotypic characterization of PcTBCC targeted genes replacement strains generated in this study using homologous recombination,and CRISPR-Cas9 technology showed that targeted disruption of PcTBCC has no significant adverse effects on the vegetative development of ***,we demonstrated that genetic deactivation of PcTBCC functions triggered a reduction in asexual sporulation,attenuated encystment,suppressed cysts,or zoospore release,and significantly(compromised the virulence of PcTBCC strains on *** susceptible pepper cultivar(HNUC0266).At the same time,we showed the PcTBCC gene defective strains generated in this study displayed moderate-high sensitivity towards cell wall stress-inducing osm

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新型混编支架的制备与径向支撑力学行为

中国组织工程研究 2025年第16期29卷 3440-3448页

作者：薛广明木合塔尔·克力木李洪新疆大学机械工程学院新疆维吾尔自治区乌鲁木齐市830047

背景:编织支架因良好的柔顺性被广泛应用于狭窄动脉的治疗,但在提供足够的径向支撑性能方面存在明显局限。目的:针对单一材料制成的编织支架存在径向支撑力不足的问题,采用不同力学参数的生物可降解材料混合编织支架,探究影响混编支架... 详细信息

背景:编织支架因良好的柔顺性被广泛应用于狭窄动脉的治疗,但在提供足够的径向支撑性能方面存在明显局限。目的:针对单一材料制成的编织支架存在径向支撑力不足的问题,采用不同力学参数的生物可降解材料混合编织支架,探究影响混编支架径向力学性能的影响因素。方法:在镁合金支架中引入铁合金纱线,采用有限元分析法对不同编织参数的混编支架进行参数化分析,通过与0.18 mm直径镁合金纱线制备的普通支架进行对比,评估其径向支撑力、径向回弹率和扩张不均匀性。结果与结论:①当铁合金纱线直径为0.18 mm和0.14 mm时,随着铁合金纱线数量的增多,混编支架的径向支撑力增加;此时,尽管直径0.14 mm铁合金纱线提供的径向支撑力小于同数量的0.18 mm铁合金纱线,但增加细铁合金纱线的数量可以达到与较粗铁合金纱线混编支架相媲美的径向支撑力。当铁合金纱丝直径为0.10 mm时,随着铁合金纱线数量的增加,混编支架的径向支撑力降低。②增大编织角度,混编支架的径向支撑力降低,但其径向回弹率和狗骨率得到了改善。通过降低编织角可以改善小直径铁合金纱线造成的支架径向支撑力不足。③结果显示,在镁合金支架中引入铁合金纱线,可以实现在不增加纱线直径的情况下精确地调整支架的径向力学性能,这不仅克服了单一材料支架的局限性,也为多材料支架的设计提供了新思路。

关键词：编织支架生物可降解材料镁合金铁合金支架结构径向支撑性能狗骨率有限元分析

伊利石^(40)Ar-^(39)Ar年龄的统计分析与成藏期

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地球科学 2022年第2期47卷 479-489页

作者：王龙樟王立云李季肖娇静郭威沈奥徐乔王娅茹中国地质大学海洋地质资源湖北省重点实验室湖北武汉430074 中国地质大学地质过程与矿产资源国家重点实验室湖北武汉430074 中国地质大学材料与化学学院湖北武汉430078

为了确定鄂尔多斯盆地苏里格气田的成藏年代,通过提取砂岩储层中的黏土质填隙物,分离分级成<0.5、0.5~1.0、1.0~2.0μm的分样品,进行伊利石激光阶段加热^(40)Ar‐^(39)Ar定年.等时线年龄是自生伊利石与碎屑伊利石的混合年龄.通过趋势分... 详细信息

为了确定鄂尔多斯盆地苏里格气田的成藏年代,通过提取砂岩储层中的黏土质填隙物,分离分级成<0.5、0.5~1.0、1.0~2.0μm的分样品,进行伊利石激光阶段加热^(40)Ar‐^(39)Ar定年.等时线年龄是自生伊利石与碎屑伊利石的混合年龄.通过趋势分析和回归分析分别获得极小的趋势年龄和极小的回归年龄,该年龄比较接近自生伊利石年龄.测试结果表明,伊利石的等时线年龄介于160.9~232.0 Ma之间,为自生伊利石与碎屑伊利石的混合年龄.采用数理统计方法获得极小趋势年龄和极小回归年龄分别为151.7 Ma和152.4 Ma,该年龄比较接近自生伊利石年龄,代表了热流体活动和油气成藏时间.

关键词： ^(40)Ar-^(39)Ar法伊利石油气成藏时间等时线年龄统计分析油气地质

基于全基因组关联分析研究粪肠球菌发酵食品分离株的耐药性

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微生物学报 2019年第1期59卷 113-122页

作者：孙雅如李伟程余中节王旭李敏王佼张和平钟智内蒙古农业大学乳品生物技术与工程教育部重点实验室农业农村部奶制品加工重点实验室内蒙古呼和浩特010018

【目的】研究15株分离自自然发酵食品的粪肠球菌(Enterococcus faecalis)和1株粪肠球菌模式株对15种(1种β-内酰胺类和14种非β-内酰胺类)抗生素的耐药性,并通过菌株耐药表型与基因型的关联分析找到粪肠球菌潜在的耐药基因。【方法】利... 详细信息

【目的】研究15株分离自自然发酵食品的粪肠球菌(Enterococcus faecalis)和1株粪肠球菌模式株对15种(1种β-内酰胺类和14种非β-内酰胺类)抗生素的耐药性,并通过菌株耐药表型与基因型的关联分析找到粪肠球菌潜在的耐药基因。【方法】利用微量肉汤稀释法检测试验菌株对15种抗生素的耐药性,运用Scoary软件进行表型与基因型的关联分析。【结果】16株粪肠球菌对卡那霉素、万古霉素、利奈唑胺和红霉素100%敏感;对其余11种抗生素均表现出不同程度的耐药,其中对克林霉素为100%耐药。基因组关联分析发现了9个功能基因与5种抗生素(氯霉素、环丙沙星、甲氧苄啶、新霉素和四环素)存在显著相关关系,其中基因FAM000296和FAM005768与氯霉素、甲氧苄啶和环丙沙星的耐药性有关。进一步分析发现基因FAM000296和FAM005768同被注释为Sec G,但基因FAM005768与基因FAM000296相比在3′端丢失了21个碱基。【结论】分离自自然发酵食品的粪肠球菌对多种抗生素具有耐药性,其基因组中携带有潜在的耐药基因。因此,对分离自自然发酵食品的粪肠球菌需要进行全面的安全性评估后方可考虑应用。

关键词：粪肠球菌抗生素耐药性关联分析发酵食品

Improving interlaminar fracture toughness of flax fiber/epoxy composites with chopped flax yarn interleaving

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Science China(Technological Sciences) 2015年第10期58卷 1745-1752页

作者： li Yan WANG Di MA Hao School of Aerospace Engineering and Applied Mechanics Tongji University Key Laboratory of Advanced Civil Engineering Materials Ministry of Education Tongji University

In this research, unidirectional flax fabrics reinforced epoxy laminates were intedeaved with randomly oriented chopped flax yarns at various yarn lengths and contents. Mode I interlaminar fracture toughness of the laminates was evaluated via Double Cantilever Beam （DCB） tests. The results showed that Mode I interlaminar fracture toughness increased with the introduction of the chopped yarns. With moderate yarn length and content, the best toughening effect （31% improvement in Mode I inter- laminar fracture toughness） was achieved. It was observed with the aid of Scanning Electronic Microscopy （SEM） that the in- troduction of the chopped yarns resulted in more tortuous in-plane crack propagation paths as well as the ＂trans-layer＂ phe- nomenon and fiber bridging effect of both the unidirectional yams and the chopped yams. These hindered the growth of the crack and led to more energy dissipation during delamination progress. Excessive yam length or content would induce unstable crack propagation and thus weakened the toughening improvement. No remarkable change was found in the tensile properties and the Charpy impact strength for the interleaved laminates, which indicated that this interleaving method was effective on interlaminar toughening without sacrificing the comprehensive mechanical properties of the laminates.

关键词： natural fiber reinforced composites interlaminar fracture toughness interlaminar toughening interleaving fiberbridging trans-layer effect

Calotropis gigantea Fiber‑Based Sensitivity‑Tunable Strain Sensors with Insensitive Response to Wearable Microclimate Changes

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Advanced Fiber Materials 2023年第4期5卷 1378-1391页

作者： Junze Zhang Jing liu Zeyu Zhao Weiwei Sun Gaojuan Zhao Jingge liu Jianchu Xu Yuling li Zekun liu Yi li Gang li National Engineering Laboratory for Modern Silk College of Textile and Clothing EngineeringSoochow UniversitySuzhou 215123China Jiangsu Advanced Textile Engineering Technology Center Nantong 226007China Honghe Center for Mountain Futures Kunming Institute of BotanyChinese Academy of SciencesHonghe CountyYunnan 654412China Key Laboratory of Textile Science and Technology Ministry of EducationDonghua UniversityShanghai 201620China Department of Materials University of ManchesterOxford RoadManchester M139PLUK Botnar Research Center University of OxfordOld RoadHeadington OX37LDOxfordUK

Wearable tensile strain sensors have attracted substantial research interest due to their great potential in applications for the real-time detection of human motion and health through the construction of body-sensing *** devices,however,are constantly demonstrated in non-real world scenarios,where changes in body temperature and humidity are ignored,which results in questionable sensing accuracy and reliability in practical *** this work,a fabric-like strain sensor is developed by fabricating graphene-modified Calotropis gigantea yarn and elastic yarn(***)into an independently crossed structure,enabling the sensor with tunable sensitivity by directly altering the sensor *** sensor possesses excellent breathability,allowing water vapor generated by body skin to be discharged into the environment(the water evaporation rate is approximately 2.03 kg m^(-2) h^(-1))and creating a pleasing microenvironment between the sensor and the skin by avoiding the hindering of perspiration *** importantly,the sensor is shown to have a sensing stability towards changes in temperature and humidity,implementing sensing reliability against complex and changeable wearable *** wearing the sensor at various locations of the human body,a full-range body area sensing network for monitoring various body movements and vital signs,such as speaking,coughing,breathing and walking,is successfully *** provides a new route for achieving wearing-comfortable,high-performance and sensing-reliable strain sensors.

关键词： Wearable strain sensor Functionalized Calotropis gigantea fiber Wearable microclimate Graphene coating Tunable sensitivity