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POWER-AWARE ROUTING BASED ON DSR FOR MOBILE AD HOC NETWORKS

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Journal of Electronics(China) 2007年第2期24卷 167-173页

作者： Huang jingbo Hong Peilin li Jinsheng Department of Electronic Engineering and Information Science University of Science and Technology of China Hefei 230027 China

Energy consumption is a crucial design concern in Mobile Ad hoc NETworks (MANETs) since nodes are powered by batteries with limited energy, whereas Dynamic Source Routing (DSR) protocol does not take the energy limitation of MANET nodes into account. This paper proposes an energy-saving routing algorithm based on DSR: Power Aware Routing protocol based on DSR (PAR-DSR). The design objective of PAR-DSR is to select energy-efficient paths. The main features of PAR-DSR are: (1) Nodes use the Signal Attenuation Rate (SAR) to conduct power control operations; (2) Minimum path cost as metric to balance the traffic and energy consumption of wireless nodes. The simulation results show that PAR-DSR can greatly reduce the energy consumption of MANET nodes. The average node lifetime of PAR-DSR is 50%-77% longer than that of DSR.

关键词： Ad hoc Energy consumption Cost function Signal Attenuation Rate (SAR) PowerAware Routing based on Dynamic Source Routing (PAR-DSR)

Design, Synthesis, Antifungal Activities and SARs of （R）-2-Aryl-4,5-dihydrothiazole-4-carboxylic Acid Derivatives

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Chinese Journal of Chemistry 2015年第11期33卷 1269-1275页

作者： jingbo liu Yuxin li Youwei Chen Xuewen Hua Yingying Wan Wei Wei Haibin Song Shujing Yu Xiao Zhang Zhengming li State Key Laboratory of Elemento-Organic Chemistry Collaborative Innovation Center of Chemical Science DQG Engineering ( Tianjin) Nankai University Tianjin 300071 China

Based on the structure of natural product 2-aryl-4,5-dihydrothiazole-4-carboxylic acid, a series of novel （R）-2-aryl-4,5-dihydrothiazole-4-carboxylic acid derivatives were designed and synthesized. Their structures were characterized by ^1H NMR, ^13C NMR and HRMS. The single crystal structure of compound 9b was determined by X-ray diffraction analysis. The antifungal activities were evaluated for the first time. The bioassay results indicated that most compounds exhibited moderate to good antifungal activities. The antifungal activities of compound 13a （against Cercospora arachidicola Hori）, 13d （against Alternaria solani）, and 16e （against Cercospora arachidieola Hori） were 61.9%, 67.3% and 61.9%, respectively, which are higher than those of the commercial fungicides chlorothalonil and carbendazim. Moreover, compound 13d exhibited excellent antifungal activities against 7 kinds of the fungi tested （66.7%, 77.3%, 63.0%, 87.9%, 70.0%, 70.0% and 80.0% at 50 μg/mL）. Therefore, 13d can be used as a new lead structure for the development of antifungal agents.

关键词： (R)-2-aryl-4,5-dihydrothiazole-4-carboxylic acid synthesis antifungal activity structure-activity relationship

Ultrafast growth of high-quality large-sized GaSe crystals by liquid metal promoter

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Nano Research 2022年第5期15卷 4677-4681页

作者： Zuxin Chen Quan Chen Zebing Chai Bin Wei Jun Wang Yanping liu Yumeng Shi Zhongchang Wang jingbo li Institute of semiconductors South China Normal UniversityGuangzhou 510631China School of Materials Sun Yat-Sen UniversityGuangzhou 510275China School of Electrical Engineering and Automation Wuhan UniversityWuhan 430000China School of Physics and Electronics Hunan Key Laboratory for Super-microstructure and Ultrafast ProcessCentral South University932 South Lushan RoadChangsha 410083China Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China International Iberian Nanotechnology Laboratory(INL) 4715–330 BragaPortugal

Growth of high-quality large-sized crystals using the traditional chemical vapor transport(CVT)or vertical Bridgman(VB)technique is costly and time-consuming,limiting its practical industrial ***,we propose an ultrafast crystal growth process with low energy consumption and capability of producing crystals of excellent quality,and demonstrate that large-sized GaSe crystals with a lateral size of 0.5 to 1 cm can be obtained within a short period of 5 min.X-ray diffraction(XRD)and scanning transmission electron microscopy(STEM)studies clearly indicate that the as-grown crystals have a good *** further show the potential application of the resulting GaSe crystals,we fabricate the few-layer GaSe-based photodetector,which exhibits low dark current of 21 pA and fast response of 34 ms under 405 nm *** proposed technique for rapid crystal growth could be further extended to other metallenes with low-melting point,such as Bi-,Sn-,In-,Pb-based crystals,opening up a new avenue in fulfilling diverse potential optoelectronics applications of two-dimensional(2D)crystals.

关键词： GaSe ultrafast growth photodetector liquid metal

Vertically standing PtSe_2 film: a saturable absorber for a passively mode-locked Nd:LuVO_4 laser

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Photonics Research 2018年第7期6卷 750-755页

作者： lili TAO XIAOWEN HUANG JUNSHAN HE YAJUN LOU LONGHUI ZENG YONGHUI li HUI LONG jingbo li liNG ZHANG YUEN HONG TSANG School of Materials and Energy Guangdong University of Technology Department of Applied Physics The Hong Kong Polytechnic University Laboratory of All-Solid-State light Sources Institute of Semiconductors Chinese Academy of Sciences

The novel vertically standing Pt Se2 film on transparent quartz was prepared by selenization of platinum film deposited by the magnetron sputtering method, and an Nd:Lu VO4 passively mode-locked solid-state laser was realized by using the fabricated Pt Se2 film as a saturable absorber. The X-ray diffraction pattern and Raman spectrum of the film indicate its good crystallinity with a layered structure. The thickness of Pt Se2 film is measured to be 24 nm according to the cross-section height profile of the atomic force microscope image. Highresolution transmission electron microscopy images clearly demonstrate its vertically standing structure with an interlayer distance of 0.54 nm along the c-axis direction. The modulation depth(ΔT) and saturation fluence(Φs)of Pt Se2 film are measured to be 12.6% and 17.1 μJ∕cm2, respectively. The obtained mode-locked laser spectrum has a central wavelength of 1066.573 nm, with a 3 d B bandwidth of 0.106 nm. The transform limited pulse width of the mode-locked laser was calculated to be 15.8 ps. A maximum average output power of 180 m W with a working repetition rate of 61.3 MHz is obtained. To the best of our knowledge, this is the first report of the generation of ultrafast mode-locked laser pulses by using layered Pt Se2 as a saturable absorber.

关键词：磁控溅射法通信技术理论研究发展现状

Tunable Schottky barrier width and enormously enhanced photoresponsivity in Sb doped SnS2 monolayer

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Nano Research 2019年第2期12卷 463-468页

作者： Junchi liu Xiao liu Zhuojun Chen lili Miao Xingqiang liu Bo li liming Tang Keqiu Chen Yuan liu jingbo li Zhongming Wei Xidong Duan Department of Applied Physics School of Physics and Electronics Hunan University Changsha 410082 China Hunan Key Laboratory of two dimensional materials Department of Applied Physics School of Physics and Electronics Hunan University Changsha 410082 China State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences & College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences Beijing 100083 China Hunan Key Laboratory of two dimensional materials State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China

Doping, which is the intentional introducti on of impurities into a material, can improve the metal-semiconductor interface by reducing Schottky barrier width. Here, we prese nt high-quality two-dime nsional SnS2 nano sheets with well-controlled Sb dopi ng concen tration via direct vapor growth approach and following micromechanical cleavage process. X-ray photoelectro n spectroscopy (XPS) measureme nt dem on strates that Sb contents of the doped samples are approximately 0.22%, 0.34% and 1.21%, respectively, and doping in duces the upward shift of the Fermi level with respect to the pristi ne SnS2. Tran smissio n electro n microscopy (TEM) characterizatio n exhibits that Sb-doped SnS2 nano sheets have a high-quality hexagonal symmetry structure and Sb element is uniformly distributed in the nano sheets. The phototra nsistors based on the Sb-doped SnS2 mono layers show n-type behavior with high mobility which is one order of magn itude higher than that of pristi ne SnS2 phototra nsistors. The photorespo nsivity and exter nal quantum efficiency (EQE) of Sb-S nS2 mono layers phototra nsistors are approximately three orders of magnitude higher than that of pristine SnS2 phototransistor. The results suggest that the method of reducing Shottky barrier width to achieve high mobility and photoresp on sivity is effective, and Sb-doped SnS2 mono layer has significant potential in future nanoelectronic and optoelectronic applications.

关键词： two-dimensional doping Schottky barrier width SnS2 optoelectronics

2022年泸定M_(s) 6.8级地震发震构造与鲜水河断裂带强震迁移规律

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地质论评 2024年第3期70卷 975-995页

作者：钟永生李敬波王国洪颜照坤周吉谦王多福郑良忠张聚源吴明亮西部矿业股份有限公司西宁810008 中国地质大学(武汉)地球科学学院武汉430074 东华理工大学地球科学学院南昌330013

2022年9月5日12时52分在四川甘孜州泸定县发生Ms6.8级地震,震源深度16 km。这是继2014年康定地震后,发生在鲜水河断裂带上的又一次强震。笔者等通过已有文献资料,结合鲜水河断裂带南段野外地质调查,统计了滑动速率及历史地震资料,并总... 详细信息

2022年9月5日12时52分在四川甘孜州泸定县发生Ms6.8级地震,震源深度16 km。这是继2014年康定地震后,发生在鲜水河断裂带上的又一次强震。笔者等通过已有文献资料,结合鲜水河断裂带南段野外地质调查,统计了滑动速率及历史地震资料,并总结了近代鲜水河断裂带强震迁移规律,对认识鲜水河断裂带活动特征及未来地震危险性具有重要意义。主要得出以下几点认识:①鲜水河断裂带各段滑动速率差异较大,以乾宁为界,从NW至SE段整体上呈现出“先减速后加速”的滑动特点;②泸定地震发震构造磨西断裂,为一次左旋走滑事件;③川滇地区近代历史强震活跃期具有“跳跃性”迁移的特点。自1981年道孚地震后,鲜水河断裂带断进入相对平静期,持续了33 a。自2014年康定地震发生,鲜水河断裂带再次进入地震活跃期;④鲜水河断裂带的强震破裂并非单次地震的“贯通型”模式,而是多次地震的渐进式。断层间相互作用尤其是大地震的发生对断裂带强震复发间隔具有重大影响,相同断裂带的强震也会对后续地震的发生概率产生变化。

关键词：鲜水河断裂带泸定地震复发间隔强震迁移规律地震活跃期

Tissue adhesive,ROS scavenging and injectable PRP-based‘plasticine’for promoting cartilage repair

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Regenerative Biomaterials 2024年第1期3卷 94-107页

作者： Shiao li Dawei Niu Haowei Fang Yancheng Chen Jinyan li Kunxi Zhang jingbo Yin Peiliang Fu Department of Orthopedics Shanghai Changzheng HospitalNaval Medical UniversityShanghai 200003P.R.China Department of Polymer Materials School of Materials Science and EngineeringShanghai UniversityShanghai 200444P.R.China

Platelet-rich plasma(PRP)that has various growth factors has been used clinically in cartilage ***,the short residence time and release time at the injury site limit its therapeutic *** present study fabricated a granular hydrogel that was assembled from gelatin microspheres and tannic acid through their abundant hydrogen *** microspheres with the gelatin concentration of 10wt%and the diameter distribution of 1-10 lm were used to assemble by tannic acid to form the granular hydrogel,which exhibited elasticity under low shear strain,but flowability under higher shear *** viscosity decreased with the increase in shear ***,the granular hydrogel exhibited self-healing feature during rheology ***,granular hydrogel carrying PRP not only exhibited well-performed injectability but also performed like a‘plasticine’that possessed good *** granular hydrogel showed tissue adhesion ability and reactive oxygen species scavenging *** hydrogel carrying PRP transplanted to full-thickness articular cartilage defects could integrate well with native cartilage,resulting in newly formed cartilage articular fully filled in defects and well-integrated with the native cartilage and subchondral *** unique features of the present granular hydrogel,including injectability,plasticity,porous structure,tissue adhesion and reactive oxygen species scavenging provided an ideal PRP carrier toward cartilage tissue engineering.

关键词： cartilage regeneration granular hydrogel gelatin tannic acid PRP

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块状玻璃应力光程差测试方法

中国建材科技 2024年第S1期33卷 130-133页

作者：罗浩李靖波张旭海范影强仵小曦彩虹集团(邵阳)特种玻璃有限公司湖南邵阳422000

本文探讨了采用EXICOR-GEN双折射测量系统评测块状玻璃应力的方法,包括样块加工工艺、样块表面粗糙度、波纹度等性能对测试结果的影响。为避免探究结果的偶然性,在相同的条件下,通过制备并测试大量的样品进行实验数据验证和实验结果复现... 详细信息

本文探讨了采用EXICOR-GEN双折射测量系统评测块状玻璃应力的方法,包括样块加工工艺、样块表面粗糙度、波纹度等性能对测试结果的影响。为避免探究结果的偶然性,在相同的条件下,通过制备并测试大量的样品进行实验数据验证和实验结果复现,重点解决了用于平板玻璃应力测试的双折射测量系统能否用于块状玻璃应力测试和怎样测的问题,最后根据前期的实验结果初步制定了块状玻璃应力光程差测试加工管控标准和定性评价标准。

关键词：玻璃应力光程差双折射

Rationale for the use of multifunctional drugs as neuroprotective agents for glaucoma

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Neural Regeneration Research 2012年第4期7卷 313-318页

作者： Jiahua Fang Fagang Jiang jingbo li Yanhua Zhu Department of Ophthalmology Jingzhou First Hospital Yangtze University Jingzhou 434000 Hubei Province China Department of Ophthalmology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 Hubei Province China

Glaucoma, the leading cause globally of irreversible blindness, is a neurodegenerative disease characterized by progressive retinal ganglion cell death. To date, no drug has been shown to prevent the retinal ganglion cell loss associated with glaucoma. Multiple mechanisms lead to ganglion cell death in glaucoma, suggesting that a neuroprotectant that has a single mode of action, like memantine, would have a limited positive effect at slowing down ganglion cell death. Conversely simultaneously targeting several factors may be the best therapeutic approach to improve outcomes Multifunctional drugs are fast gaining acceptance as a strategy for the treatment of complex disorders of the central nervous system, such as Parkinson＇s disease, Alzheimer＇s disease and other progressive neurodegenerative diseases. In this paper, we review the current literature on multifunctional drugs and propose a rationale for the use of multifunctional drugs in glaucomatous optic neuropathy.

关键词： multifunctional drugs glaucoma neuroprotection neurodegenerative disease retinal ganglion cells reviews