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Journal of Rare Earths 2018年第7期36卷 733-738页

作者： Jun Wang si Chen Hao liu Wuke Li College of Chemistry Central China Normal University

Magnetic and temperature-responsive luminescent composites based on poly（N-isopropylacrylamide）,magnetic nanoparticles and Na9[EuW10O36] were fabricated. The composites were investigated by IR, UV,XRD, TGA, SEM and TEM. The prepared nanocomposites exhibit good superparamagnetic property and thermo-responsive switchable luminescence properties. The multifunctional nanocomposites can be separated by external magnetic field. Moreover, the nanocomposites exhibit an appreciable temperature response, and the red luminescence of the nanocomposites in solution can be controlled by the temperature stimuli. The hydrogel emits strong redluminescence in solution at 25 ℃,which can be seen by naked eyes. When the external temperature is 40 ℃, the red luminescence almost disappears in *** is expected that the multifunctional nanoparticles have potential applications in the field of biomedicine.

关键词： Magnetic Lanthanide Luminescence Thermosensitive Controllable Rare carths

Review of local mean decomposition and its application in fault diagnosis of rotating machinery

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Journal of Systems Engineering and Electronics 2019年第4期30卷 799-814页

作者： LI Yongbo si Shubin liu Zhiliang LIANG Xihui MIIT Key Laboratory of Dynamics and Control of Complex Systems Northwestern Polytechnical UniversityXi’an 710072China School of Mechanical and Electrical Engineering University of Electronic Science and Technology of ChinaChengdu 611731China Department of Mechanical Engineering University of ManitobaWinnipeg R3T 5V6Canada

Rotating machinery is widely used in the *** are vulnerable to many kinds of damages especially for those working under tough and time-varying operation *** detection of these damages is important,otherwise,they may lead to large economic loss even a *** signal processing methods have been developed for fault diagnosis of the rotating *** mean decomposition(LMD)is an adaptive mode decomposition method that can decompose a complicated signal into a series of mono-components,namely product functions(PFs).In recent years,many researchers have adopted LMD in fault detection and diagnosis of rotating *** give a comprehensive review of LMD in fault detection and diagnosis of rotating ***,the LMD is *** advantages,disadvantages and some improved LMD methods are ***,a comprehensive review on applications of LMD in fault diagnosis of the rotating machinery is *** review is divided into four parts:fault diagnosis of gears,fault diagnosis of rotors,fault diagnosis of bearings,and other LMD *** each of these four parts,a review is given to applications applying the LMD,improved LMD,and LMD-based combination methods,*** give a summary of this review and some future potential topics at the end.

关键词： local mean decomposition(LMD) signal processing gear rotor bearing

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石墨烯-硼烯共面异质结结构和性质计算研究

原子与分子物理学报 2025年第1期42卷 75-80页

作者：刘会彬刘品妍陈思雨李昕玥张震张孟华东理工大学上海200237

采用密度泛函理论系统研究了石墨烯和χ_(3)硼烯构造共面异质结的可行性、结构和性质.通过对体系能量的计算,找到了稳定的石墨烯-χ_(3)硼烯共面二维异质结体系,并对构造方式、电学和光学性质进行了详细地分析与讨论.研究发现异质结体... 详细信息

采用密度泛函理论系统研究了石墨烯和χ_(3)硼烯构造共面异质结的可行性、结构和性质.通过对体系能量的计算,找到了稳定的石墨烯-χ_(3)硼烯共面二维异质结体系,并对构造方式、电学和光学性质进行了详细地分析与讨论.研究发现异质结体系界面处以碳六元环和硼五元环头对头相连接.对电荷转移和态密度分析得出石墨烯与硼烯之间形成稳定共价键.该体系具有零带隙和金属性的性质,且可见光波段吸收性能优异,具有潜在应用价值.

关键词：硼烯石墨烯异质结密度泛函理论

Synthesis of novel chalcone derivatives and their stabilization effect of spiropyran in PMMA films

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Chinese Chemical Letters 2011年第9期22卷 1025-1028页

作者： Zheng Kai si Qing Zhang Min Zhao Xue Yuan Yuan Zhu Liang Ming Qiao Rong Sheng Yan gang liu School of Chemistry and Chemical Engineering Shanghai Jiaotong University Shanghai 200240 China

Three novel bis-chalcone derivatives with different alkyldioxy spacers were synthesized and dispersed into polymethyl methacrylate （PMMA） chloroform solution with 6-nitro-1＇-ethyl-3＇,3＇-dimethylspiro-2H-1-benzopyran-2,U-indoline （ESP） to prepare photochromic PMMA films in a facile way. After irradiation with 365 nm UV light, the photocrosslinking reaction between chalcone units was proved to retard the decolorization of merocyanine form of the photochromic spiropyran effectively, as results of the steric hindrance produced by photocycloaddition of chalcone groups. It has been found that the bis-chalcone molecule with the shortest spacer has the most effective stabilizing effect on retardation of decoloration of spiropyran. reserved.

关键词： Photochromism Chalcone Spiropyran Photocycloaddition Slabilization effect

Effect of trace si on MgO·Al_(2)O_(3)inclusion in ultra-low-carbon steel

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Journal of Iron and Steel Research International 2021年第4期28卷 402-412页

作者： Lei Cao De-li Shang Xin-gang Ai Peng-liang Jin Yuan-you Xiao Guo-cheng Wang Chun-wei liu School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051LiaoningChina State Key Laboratory of Metal Material for Marine Equipment and Application Anshan 114051LiaoningChina

There are four types of Mg–Al–si–O inclusions observed in the Mg-treated Al-deoxidized ultra-low-carbon steel con-taining trace si,including siO_(2),2MgO·siO_(2),3Al_(2)O_(3)·2siO_(2),and 2MgO·Al_(2)O_(3)·5siO_(2)and their composite *** FactSage,the phase relationship of Mg–Al–si–O system at 1473–2073 K was calculated using FactSage software,and the change in si content can change the stable region range of different Mg–Al–si–O-based *** on the types of inclusions observed experimentally,the formation pathways of inclusions were predicted and a kinetic model was established to describe the formation process of the xMgO·yAl_(2)O_(3)–Mg–Al–si–O and xAl_(2)O_(3)·ysiO_(2)–Mg–Al–si–O inclusions.

关键词： Magnesium treatment Al deoxidation Mg–Al–si–O-based inclusion Trace si Ultra-low-carbon steel

Essential role of MALAT1 in reducing traumatic brain injury

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Neural Regeneration Research 2022年第8期17卷 1776-1784页

作者： Na Wu Chong-Jie Cheng Jian-Jun Zhong Jun-Chi He Zhao-si Zhang Zhi-gang Wang Xiao-Chuan Sun Han liu Department of Neurosurgery the First Affiliated Hospital of Chongqing Medical UniversityChongqingChina Department of Neurosurgery Qilu Hospital of Shandong University(Qingdao Campus)QingdaoShandong ProvinceChina

As a highly evolutionary conserved long non-coding RNA,metastasis associated lung adenocarcinoma transcript 1(MALAT1)was first demonstrated to be related to lung tumor metastasis by promoting *** investigate the role of MALAT1 in traumatic brain injury,we established mouse models of controlled cortical impact and cell models of oxygen-glucose deprivation to mimic traumatic brain injury in vitro and in *** results revealed that MALAT1 silencing in vitro inhibited endothelial cell viability and tube formation but increased *** MALAT1-deficient mice,endothelial cell proliferation in the injured cortex,functional vessel density and cerebral blood flow were *** analyses and RNA pull-down assays validated enhancer of zeste homolog 2(EZH2)as a downstream factor of MALAT1 in endothelial ***-1,the Notch homolog 1(NOTCH1)agonist,reversed the MALAT1 deficiency-mediated impairment of *** together,our results suggest that MALAT1 controls the key processes of angiogenesis following traumatic brain injury in an EZH2/NOTCH1-dependent manner.

关键词： angiogenesis controlled cortical impact EZH2 Jagged-1 LncRNA MALAT1 NOTCH1 oxygen-glucose deprivation traumatic brain injury vascular remodeling

Experimental Analysis on Influence of Temperature and Bolted Torque to DC Contact Resistance of Terminal Connector in UHV Valve Hall

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CSEE Journal of Power and Energy Systems 2020年第4期6卷 858-866页

作者： Jiajun si Xiaoming Rui Jingchao Wang Bin liu Shengchun liu School of Energy Power and Mechanical Engineering North China Electric Power UniversityBeijing 102206China China Electric Power Research Institute Beijing 100192China

The overheating problems of terminal connectors severely threaten the operation of ultra-high voltage projects and cause enormous losses of economy,so a higher currentcarrying reliability of the connectors has an important engineering significance with the development of transmission *** this paper,a bivariate mathematical model of contact resistance as functions of temperature and tightening torque was deduced based on the large current temperature rise *** perform such analysis,four typical terminal connectors,namely:overlapping terminal of aluminum plates,overlapping terminal of copper plates,overlapping terminal of plates with clad layer and overlapping terminal of copper rod with aluminum clamp,were chosen for the *** changing rules of DC resistance with different tightening torques and different currents were *** the empirical formula of contact resistance was ***,temperature calculations of different terminal connectors were realized to verify the effectiveness of the bivariate mathematical model.

关键词： DC contact resistance empirical parameter large current temperature rise test terminal connector UHV converter station

Minimally-invasive treatment of communicating hydrocephalus using a percutaneous lumboperitoneal shunt

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第4期12卷 293-297页

作者： Lu JIA Zhong-xin ZHAO Chao YOU Jia-gang liu si-qing HUANG Min HE Pei-gang JI Jie DUAN Yi-jun ZENG Guo-ping LI Department of Neurosurgery West China Hospital of Sichuan University Chengdu 610041 China Department of Neurosurgery Dujiangyan Renmin Hospital of Sichuan Province Dujiangyan 611830 China

Objective:To investigate the clinical value of a minimally-invasive treatment of communicating hydrocephalus using a percutaneous lumboperitoneal (LP) ***:The clinical and long-term follow-up data of 256 patients suffering from communicating hydrocephalus and undergoing percutaneous LP shunt during 1998 to 2008 were retrospectively ***:After the follow-up,which lasted 6 months to 10 years,219 cases of communicating hydrocephalus recovered well (ventricular size returned to normal and symptoms completely disappeared),25 cases were brought under control (ventricle size reduced by 50% and symptoms partially abated),and 12 cases showed no obvious *** obese subjects needed modifications of the shunt due to the obstruction of the abdominal end following wrapping,and one subject underwent extubation as the subject was unable to tolerate stimulation of the cauda *** effectiveness of shunting was 91.40% and the probability of shunt-tube obstruction,which occurs predominantly in the abdominal end,was only 5.85%,far lower than that of ventriculoperitoneal (VP) *** subjects had a history of infection following VP ***:LP shunting is minimally invasive and effective in treating communicating hydrocephalus,with fewer complications.

关键词： Communicating hydrocephalus Percutaneous lumboperitoneal shunt Cerebrospinal fluid

An immunological storm for cancer therapy: 2018 Nobel Prize in Physiology or Medicine

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Science Bulletin 2018年第24期63卷 1608-1610页

作者： si-Yang liu Yi-Long Wu Guangdong General Hospital School of MedicineSouth China University of Technology

Immunotherapy with checkpoint inhibitors (CPIs)is a new approach to cancer therapy that harnesses and enhances the innate abilities of the immune system to recognize and fight *** has become a breakthrough in the history of cancer treatment and is of epoch-making significance [1 ]. In the past century,Nobel Prize has been awarded to the advances in immunology for 15 *** year,it won for the 16th *** *** from the University of Texas MD Anderson Cancer Center and Japanese immunologist Tasuku Honjo were awarded the 2018 Nobel Prize in Physiology or Medicine,for their great contributions to the discovery of the CTLA-4 and PD-1 and the development of promising cancer therapy by inhibition of negative immune *** research shows how different strategies to inhibit the brakes on the immune system can be used in the treatment of cancer,which became a landmark in the history of cancer therapy.

关键词： Immunotherapy checkpoint inhibitors cancer

simultaneous removal of NO and SO_2 from dry gas stream using non-thermal plasma

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Journal of Environmental Sciences 2007年第11期19卷 1393-1397页

作者： YU Qi YANG Hong-min ZENG Ke-si ZHANG Zhen-wei YU gang College of Chemical Engineering Wuhan University of Science and Engineering Wuhan 430073 China Department of Power Engineering Nanjing Normal University Nanjing 210042 China Department of Man-Machine and Environment Engineering College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

In order to investigate the feasibility of sequential removal NO and SO2 using non-thermal plasma and adsorbent simultaneously, the removal of NO and SO2 from dry gas stream （NO/SO2/N2/O2） with very little O2 using non-thermal plasma was investigated using a coaxial dielectric barrier discharge. Comparative experiments were carried out in the dry gas stream with and without Ar respectively at O2 concentration of 0.1%. The results showed that NO could be removed remarkably and it would be enhanced in the presence of Ar in the dry gas stream. It seems that SO2 could not be removed unless there is Ar in the dry gas stream. The mechanism of removal of NO and SO2 in the dry gas stream was discussed.

关键词： NO SO2 non-thermal plasma dry gas stream simukaneous removal