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International Journal of Minerals,Metallurgy and Materials 2012年第7期19卷 642-650页

作者： hao Song bin liang li Lu Pan Wu Chun li Department of Metallurgical Engineering Sichuan University Chengdu 610065 China

The relationship between hydrolysis conditions and hydrous titania polymorphs obtained in a titanyl sulfate and sulfmic acid solu- tion was investigated by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, and high-resolution transmission electron micros- copy （HRTEM）. The results revealed that the feeding rate of the titanyl sulfate stock solution, the concentration of *** acid, and the seed dosage of mtile crystal could significantly affect the hydrolysis rate, thus influencing the titania crystal phase. Hydrous TiO2 in the form of rutile, anatase, or the mixture of both could be obtained in solutions of low titanium concentrations and 2.5wt% to 15wt% sulfuric acid at 100℃. When the hydrolysis rate of titanitma expressed by TiOa was more than or equal to 0.04 g/（***）, the hydrolysate was almost phase-pure anatase, while the main phase state was rutile when the hydrolysis rate was less than or equal to 0.01 g/（***）. With the hy- drolysis rate between 0.02 and 0.03 g/（***）, the hydrolysate contained almost equal magnitude ofrutile and anatase. It seems that although rutile phase is thermodynamically stable in very acidic solutions, anatase is a kinetically stable phase.

关键词： titanium dioxide titanyl sulfate sulfuric acid hydrolysis anatase rutile

Fabrication of NiTi Shape Memory Alloys with Graded Porosity to Imitate Human Long-bone Structure

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Journal of Bionic Engineering 2015年第4期12卷 575-582页

作者： Dan Zhou Yan Gao Ming Lai hao li bin Yuan Min Zhu School of Materials Science and Engineering South China University of Technology Guangzhou 510641 China

Replacement of damaged long bones is still a significant challenge in surgery. In the present study, a NiTi Shape Memory Alloy （SMA） constructed with graded porosity imitating human long bone structure was fabricated via a dedicated moulding procedure. The outer layer （porosity 14 %） and inner layer （porosity 52 %） of the bone-like graded NiTi alloy were found to be co-axial very well with the interface with a good metallurgical bonding. Moreover, the compression strength and elastic modulus of the graded-porosity NiTi SMAs were found to be 360.6 MPa and 6.7 GPa, respectively, which have been improved by its coaxiality compared with the one with poor coaxiality. The graded-porosity NiTi SMAs exhibit resembling mechanical performance as human long-bones, and are considered to be better implant candidates for long bone replacement.

关键词： NiTi SMA graded porosity long bone structure compressive strength recoverable strain

Ultralight and superelastic MXene/reduced graphene oxide aerogels for electromagnetic interference shielding

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Nano Research 2025年第1期18卷 1-9页

作者： Xinfeng Zhou Yang Dai Guoyao Yue Yiman Zhang Lulu li Zhong-Zhen Yu Peng Min hao-bin Zhang 21 State Key Laboratory of Organic-Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Beijing Key Laboratory of Advanced Functional Polymer Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Present address:BOE Technology Innovation Center BOE Technology Group Co.Ltd.Beijing 100176China Xi’an Modern Chemistry Research Institute Xi’an 710065China

lightweight aerogels feature multifunctionality and a high porosity,yet accompanied with poor structure recovery under large strain *** this work,we develop an air bubble-ice crystal dual template and annealing strategy to integrate low density and high resilience for the conductive transition metal carbides/nitrides(MXene)composite *** air bubbles and ice crystals synergistically exclude the nanosheets to the gas-liquid interfaces,thereby constructing unique Y-shaped junctions and robust *** annealing process greatly enhances the interlayer *** external load,the Yshaped structures prevent the stress concentration at the junctions by transferring the forces to the skeleton for maintaining structural *** addition,the wrinkled and thick cell walls,together with the enhanced interlayer interactions,endow the aerogel with exceptional structural stability and *** a result,the MXene/reduced graphene oxide(RGO)composite aerogels exhibit superelasticity with reversible compressive strains of up to 95%.In addition,the electron bridging effect of the RGO sheets affords the aerogel to deliver excellent electromagnetic interference shielding performance,as high as 46.3 dB at 2.5 ***,the remarkable reshapeability of the aerogels allows for precise regulation of structure and performance(33.5-75.1 dB)by a simple wetting compression *** summary,this work offers helpful inspirations for developing lightweight and superelasticity aerogels for extensive applications.

关键词： lightweight superelasticity MXene aerogel electromagnetic interference shielding reshapeability

Synthesis and Structure of a Novel Disulfide-Containing Aniline

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有机化学 2004年第Z1期24卷 278-页

作者： DENG,Shi-Ren WU,Lei WANG,hao ZHOU,bin li,Zao-Ying College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072

　　A novel disulfide-containing aniline, 8-dihydro-1H,4H-2,3,6,7-tetrathia-anthracen-9-ylamine (5) was *** single-crystal X-ray analysis of 4 indicates that the molecular has a non-planar structure, with its four sulfur atoms out of the plane of benzene ting. The designed molecular has the advantage of high theoretic specific capacity and reversibility,[1,2] when it is to be polymerized and used as the cathode material of the secondary lithium batteries.……

关键词： specific capacity lithium batteries cathode material

社群经济下互联网创业公司文化体系建设研究:以小米公司为例

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中国人力资源开发 2017年第10期34卷 99-109页

作者：郝旭光李彬李强对外经贸大学国际商学院北京第二外国语学院酒店管理学院北京正为远达管理顾问有限公司

移动互联网时代出现的社群经济是当下我国互联网经济的重要特征之一,一批优秀互联网创业公司开始重视社群经济,并在社群的驱动下开展企业各项管理工作。现有研究针对社群经济下互联网创业公司企业文化体系的特征及文化建设过程机制的研... 详细信息

移动互联网时代出现的社群经济是当下我国互联网经济的重要特征之一,一批优秀互联网创业公司开始重视社群经济,并在社群的驱动下开展企业各项管理工作。现有研究针对社群经济下互联网创业公司企业文化体系的特征及文化建设过程机制的研究还相对较少。本文通过文献回顾,发现社群经济与企业文化建设之间的理论关联,进而运用案例研究法,选择小米科技公司作为案例,深入剖析了小米公司的社群动力学机制,分析了社群驱动下小米公司的物质文化、制度文化与理念文化三个层次的企业文化特征,进而提出了小米公司企业文化建设的过程机制。本文进一步拓展了社群经济下的企业文化理论,并为互联网创业公司进行企业文化建设提供理论指导。

关键词：社群社群经济互联网创业公司企业文化

赤峰地区晚中生代火山岩锆石U-Pb年代学及地球化学特征

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大地构造与成矿学 2016年第6期40卷 1261-1274页

作者：郝彬宋江李朝柱杨欣德中国石油勘探开发研究院西北分院甘肃兰州730020 中国石油勘探开发研究院北京100083 延长石油集团研究院陕西西安710075 中国地质科学院地质力学研究所北京100081

内蒙古赤峰地区发育大面积的晚中生代火山岩,是我国东部巨型火山岩带的重要组成部分。锆石U-Pb定年结果显示,火山岩主要形成于晚侏罗世160~147 Ma和早白垩世132~129 Ma两个时期,早期以中酸性火山岩为主,晚期主要为酸性火山岩,局部夹少... 详细信息

内蒙古赤峰地区发育大面积的晚中生代火山岩,是我国东部巨型火山岩带的重要组成部分。锆石U-Pb定年结果显示,火山岩主要形成于晚侏罗世160~147 Ma和早白垩世132~129 Ma两个时期,早期以中酸性火山岩为主,晚期主要为酸性火山岩,局部夹少量的基性火山岩。晚侏罗世早期的安山岩SiO_2含量较低,MgO含量较高,可能是岩石圈地幔部分熔融的产物,流纹岩是安山质熔浆底侵导致下地壳发生部分熔融的产物。晚侏罗世晚期的流纹岩具有与A型花岗岩相似的地球化学特征,表明其形成于伸展构造背景下。早白垩世晚期的流纹岩属于钾玄岩系列,与同时代的玄武岩构成双峰式岩石组合,流纹岩来源于地壳的部分熔融。结合前人研究成果,认为赤峰地区晚中生代的两期火山活动都与蒙古–鄂霍次克缝合带的演化有关,它们分别形成于两次陆壳加厚之后的陆内伸展环境。

关键词：锆石U-Pb年龄岩石成因晚中生代构造背景赤峰地区

企业研发的投入与产出效率研究——基于投资者情绪“双刃剑”效应的视角

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华东经济管理 2018年第9期32卷 144-150页

作者：刘春玉郝丽斌山东大学管理学院山东济南250100

文章基于心理学中著名的机构(制度)理论,运用776家上市公司2011-2016年平衡面板数据,以指导企业研发投资的技术法则与机构法则为分析框架,研究投资者情绪在企业研发投资的投入与产出效率中所起的"双刃剑"效应;通过系统GMM和固定效应检验... 详细信息

文章基于心理学中著名的机构(制度)理论,运用776家上市公司2011-2016年平衡面板数据,以指导企业研发投资的技术法则与机构法则为分析框架,研究投资者情绪在企业研发投资的投入与产出效率中所起的"双刃剑"效应;通过系统GMM和固定效应检验,实证研究发现:第一,企业对投资者情绪的迎合可以缓解研发投资对于内源性资金与研发路径的依赖,从而降低融资约束,便利突破式创新,表现为投资者情绪对企业研发投资的积极促进效应。第二,企业对投资者情绪迎合而作出的研发投资,却具有较低的产出效率,表现为投资者情绪在创新决策中的消极误导效应。结论说明培育稳定繁荣资本市场与正视"逆市场"研发投资的重要意义。

关键词：研发投资投资者情绪融资约束创新绩效

Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： bin Xie Yuanhui Guo Yun Chen hao Zhang Jiawei Xiao Maoxiang Hou Huilong liu li Ma Xin Chen Chingping Wong State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

Activation of adult endogenous neurogenesis by a hyaluronic acid collagen gel containing basic fibroblast growth factor promotes remodeling and functional recovery of the injured cerebral cortex

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Neural Regeneration Research 2025年第10期20卷 2923-2937页

作者： Yan li Peng hao Hongmei Duan Fei hao Wen Zhao Yudan Gao Zhaoyang Yang Kwok-Fai So Xiaoguang li Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina China Rehabilitation Science Institute China Rehabilitation Research CenterBeijing Key Laboratory of Neural Injury and RehabilitationBeijingChina Center of Neural Injury and Repair Beijing Institute for Brain DisordersBeijingChina Beijing Key Laboratory for Biomaterials and Neural Regeneration School of Engineering MedicineBeihang UniversityBeijingChina Guangdong-HongKong-Macao Institute of CNS Regeneration Ministry of Education CNS Regeneration Collaborative Joint LaboratoryJinan UniversityGuangzhouGuangdong ProvinceChina Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory) GuangzhouGuangdong ProvinceChina Department of Ophthalmology and State Key Laboratory of Brain and Cognitive Sciences The University of Hong KongHong Kong Special Administration RegionChina Center for Brain Science and Brain-Inspired Intelligence Guangdong-HongKong-Macao Greater Bay AreaGuangzhouGuangdong ProvinceChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Biomedical Engineering School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina

The presence of endogenous neural stem/progenitor cells in the adult mammalian brain suggests that the central nervous system can be repaired and regenerated after ***,whether it is possible to stimulate neurogenesis and reconstruct cortical layers II to VI in non-neurogenic regions,such as the cortex,remains *** this study,we implanted a hyaluronic acid collagen gel loaded with basic fibroblast growth factor into the motor cortex immediately following traumatic *** findings reveal that this gel effectively stimulated the proliferation and migration of endogenous neural stem/progenitor cells,as well as their differentiation into mature and functionally integrated ***,these new neurons reconstructed the architecture of cortical layers II to VI,integrated into the existing neural circuitry,and ultimately led to improved brain *** findings offer novel insight into potential clinical treatments for traumatic cerebral cortex injuries.

关键词： adult endogenous neurogenesis basic fibroblast growth factor-hyaluronic acid collagen gel cortical remodeling functional recovery migration motor cortex injury neural circuits neural stem cells newborn neurons proliferation

A cellulose-based lithium-ion battery separator with regulated ionic transport and high thermal stability for extreme environments

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Nano Research 2025年第1期18卷 315-322页

作者： Kun-Peng Yang Song Xie Zi-Meng Han hao-Cheng liu Chong-Han Yin Wen-bin Sun Zhang-Chi ling Huai-bin Yang De-Han li Qing-Fang Guan Shu-Hong Yu Department of Chemistry New Cornerstone Science LaboratoryInstitute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

Separators play a critical role in lithium-ion ***,the restrictions of thermal stability and inferior electrical performance in commercial polyolefin separators significantly limit their applications under harsh ***,we report a cellulose-assisted self-assembly strategy to construct a cellulose-based separator massively and *** an ultrahigh ionic conductivity in electrolytes of 3.7 mS·cm^(-1) and the ability to regulate ion transport,the obtained separator is a promising alternative for high-performance lithium-ion *** addition,integrated with high thermal stability,the cellulose-based separator endows batteries with high safety at high temperatures,greatly expanding the application scenarios of energy storage devices in extreme environments.

关键词： lithium-ion batteries bio-inspired materials battery separators cellulose nanofiber ultrahigh ionic conductivity high safety