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Study on the Physical and Dissociation Properties of Disulfur Dichloride under Electric Fields

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Chinese Journal of Structural Chemistry 2019年第8期38卷 1241-1250页

作者： QU Ying-Fei LIU Yu-Zhu YINWen-Yi Zhang qi-hang ABULIMITI Bumaliya Nanjing University of Information Science&Technology Nanjing210044China Jiangsu Collaborative Innovation Center on AtmosphericEnvironment and Equipment Technology Nanjing210044China College of Physics and Electronic Engineering XinjiangNormal UniversityUrumqi830054China

Disulfur dichloride is a hazardous substance, which is irritating to the eyes. It is significant to study the physical and dissociation properties under external electric fields. The bond length, energy, dipole moment, orbital energy level distribution, infrared spectra and dissociation properties of disulfur dichloride molecule under different external fields are obtained by using the density functional theory at the B3LYP/6-311++G(d, p) basis set level. In addition, ultraviolet-visible absorption spectra of the molecule in different electric fields are studied with configuration interaction-single excitation(CIS)/6-311++G(d, p) method. According to the results, it has been found that as the electric field exerted along the positive direction of the z-axis increases, the two sulfur-chlorine(S-Cl) bond lengths become longer and tend to break, while the sulfur-sulfur(S-S) bond length becomes shorter and the energy gap decreases. The infrared spectrum and ultraviolet-visible absorption spectra both exhibit red shift under electric field. Moreover, by scanning the potential energy surface of disulfur dichloride about S-Cl bond, the dissociation barrier decreases with the increase of positive electric field. When the external electric field arrives at 0.040 atomic units, the barrier disappears, meaning the dissociation of disulfur dichloride. The present results offer an important reference to further study of disulfur dichloride.

关键词： disulfur dichloride density functional theory external electric field spectra dissociation

The Comparison between Chinese and English Business News and Its Applicaton in E-C Translation

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The Comparison between Chinese and English Business News and...

作者： qi hang 天津财经大学

学位级别：硕士

本文基于Halliday语言元功能理论,主位理论及以Danes为主的主位推进理论,目的在于对英汉经济新闻篇章主位结构特点及主位推进模式进行全面分析,进而总结英汉经济新闻各自的语篇组织结构,语篇衔接手段以及探究语类和语言在形成诸位结构... 详细信息

本文基于Halliday语言元功能理论,主位理论及以Danes为主的主位推进理论,目的在于对英汉经济新闻篇章主位结构特点及主位推进模式进行全面分析,进而总结英汉经济新闻各自的语篇组织结构,语篇衔接手段以及探究语类和语言在形成诸位结构中所发挥的重要性。为了实现研究目的,本文首先对主位结构发展史、Halliday的主位结构理论和Danes的主位推进模式理论进行了全面系统的阐述。选出的英汉平行性经济新闻文章语料,分别来自The New York Times,China Daily(From November 2006 thru April 2007)和参考消息、21世纪经济报道和国际先驱导报(2006年11月至2007年4月)。然后应用Halliday主位结构理论和Danes的主位推进模式对英汉经济新闻文章的语篇组织结构进行对比分析,探寻两者之间的相同点和不同点。分析从以下几个方面着手:作主位的不同成分、典型主位、主位推进模式及其在英汉新闻翻译中的应用。通过仔细地对语料的分析,我们得出英汉两种语言在同一种语类的情况下,有共同点;但两种不同语系的差别,使它们的不同点也得到体现。但是如果对述位作进一步的研究,我们将对主位的了解更多。

关键词：主位主位结构主位推进模式

基于数字孪生的室内外一体化建模仿真研究与验证

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电信工程技术与标准化 2024年第8期37卷 22-28页

作者：齐航董江波马力鹏席思雨孙伟王文硕中国移动通信集团设计院有限公司北京100080

面对日趋复杂的网络架构,数字孪生技术将成为精准预测网络性能的有效手段之一。本文提出了一种基于数字孪生的室内外一体化建模仿真方法,通过结合使用建筑信息模型和地理信息系统技术,将室内外环境融合并实现场景孪生,萃取出无线信道特... 详细信息

面对日趋复杂的网络架构,数字孪生技术将成为精准预测网络性能的有效手段之一。本文提出了一种基于数字孪生的室内外一体化建模仿真方法,通过结合使用建筑信息模型和地理信息系统技术,将室内外环境融合并实现场景孪生,萃取出无线信道特性并完成区域网络性能预测。最后通过将预测结果与实测结果进行对比,验证了基于数字孪生的室内外一体化建模方案对网络覆盖预测性能有显著提升作用。

关键词：数字孪生室内外一体化建模射线跟踪建筑信息模型地理信息系统

Anti-pruritic and anti-inflammatory effects of natural verbascoside through selective inhibition of temperature-sensitive Ca2+-permeable TRPV3 channel

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中国药理学与毒理学杂志 2019年第10期 909-910页

作者： qi hang SUN Xiao-ying WU Han QU Ya-xuan WANG Ke-wei Department of Pharmacology School of Pharmacy Qingdao University

OBJECTIVE To investigate the molecular mechanism underlying the action of natural verbascoside used as traditional herbal medicine for anti-itch and antiinflammation therapy. METHODS To confirm the inhibitory effect of verbascoside on transient receptor potential(TRP) channels, we performed the whole-cel patch clamp recordings of transiently transfected h TRPs-HEK293 cells. To examine the inhibitory effect of verbascoside on TRPV3 activation-induced itch, thymic stromal lymphopoietin(TSLP) release and proinflammatory response, we adopted a pretreatment by intradermal injection of verbascoside into the mouse neck 30 min before injection of TRPV3 agonist carvacrol into the same site. We counted the bouts of scratching behavior in mice for 30 min and performed q-PCR and Western blotting assay to measure the expression levels of TSLP, inflammatory factors such as tumor necrosis factor(TNF)-α and interleukin(IL)-6 from lysates of mouse neck skin tissues. RESULTS We found that natural verbascoside selectively inhibits TRPV3 in dose-dependent manner over other TRP channels including TRPV1, TRPV4, TRPA1 and TRPM8 channels. Verbascoside attenuates the acute scratching behavior and the release of pruritic mediator TSLP and inflammatory factors TNF-α and IL-6 induced by TRPV3 agonist carvacrol. CONCLUSION Natural verbascoside specifically inhibits TRPV3 channel and alleviates pruritus and inflammation via the channel inhibition. Our observations not only provide a mechanistic explanation for the action of natural verbascoside as herbal medicine used for anti-itch and anti-inflammation therapy, but also demonstrate that specific inhibition of TRPV3 may represent therapeutic strategy for potential treatment of pruritus or dermatitis.

关键词： TRPV3 verbascoside carvacrol pruritus

Global Positioning Scheme via Quantum Teleportation

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Chinese Physics Letters 2023年第11期40卷 18-24页

作者：李有泉吕丽花朱启航 Chern Institute of Mathematics Nankai UniversityTianjin 300071China School of Physics Zhejiang UniversityHangzhou 310058China Collaborative Innovation Center of Advanced Microstructure Nanjing UniversityNanjing 210093China

Quantum teleportation scheme is undoubtedly an inspiring theoretical discovery as an amazing application of quantum physics,which was experimentally realized several years *** the purpose of quantum communication via this scheme,an entangled ancillary pair shared by Alice and Bob is the essential ingredient,and a quantum memory in Bob’s system is necessary for him to keep the quantum state until the classical message from Alice ***,the quantum memory remains a challenge in both technology and *** we show that quantum teleportation provides fresh perspectives in terms of an alternative scheme for global positioning *** to fixed locations of Bob and Charlie,Alice can determine her relative position by comparing quantum states before and after teleporting around via Bob and Charlie *** may open up a new scene in the stage of the application of quantum physics without quantum memories.

关键词： quantum scheme rational

First-principles study of stability of point defects and their effects on electronic properties of GaAs/AlGaAs superlattice

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Chinese Physics B 2022年第3期31卷 434-443页

作者： Shan Feng Ming Jiang qi-hang qiu Xiang Hua Peng Hai-Yan Xiao Zi-Jiang Liu Xiao-Tao Zu Liang qiao School of Physics University of Electronic Science and Technology of ChinaChengdu 610054China Department of Physics Lanzhou City UniversityLanzhou 730070China

When the GaAs/AlGaAs superlattice-based devices are used under irradiation environments, point defects may be created and ultimately deteriorate their electronic and transport properties. Thus, understanding the properties of point defects like vacancies and interstitials is essential for the successful application of semiconductor materials. In the present study, first-principles calculations are carried out to explore the stability of point defects in GaAs/Al_(0.5)Ga_(0.5)As superlattice and their effects on electronic properties. The results show that the interstitial defects and Frenkel pair defects are relatively difficult to form, while the antisite defects are favorably created generally. Besides, the existence of point defects generally modifies the electronic structure of GaAs/Al_(0.5)Ga_(0.5)As superlattice significantly, and most of the defective SL structures possess metallic characteristics. Considering the stability of point defects and carrier mobility of defective states,we propose an effective strategy that AlAs, GaAs, and AlGaantisite defects are introduced to improve the hole or electron mobility of GaAs/Al_(0.5)Ga_(0.5)As superlattice. The obtained results will contribute to the understanding of the radiation damage effects of the GaAs/AlGaAs superlattice, and provide a guidance for designing highly stable and durable semiconductor superlattice-based electronics and optoelectronics for extreme environment applications.

关键词： first-principles calculations GaAs/Al_(0.5)Ga_(0.5)As superlattice point defects electronic properties

Bio-inspired barnacle cement coating of biodegradable magnesium alloy for cerebrovascular application

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Rare Metals 2024年第10期43卷 5164-5185页

作者： hang Li Fei Wang Xiao-Jing Sun Liu-Jie qi Jing-An Li Mujahid Iqbal Shao-Kang Guan School of Material Science and Engineering Zhengzhou University Henan Key Laboratory of Advanced Magnesium Alloy&Key Laboratory of Materials Processing and Mold (Ministry of Education) Zhengzhou University Department of Physics University of Agriculture Faisalabad

Ischemic stroke is increasing worldwide, and stent intervention has gradually become one of the effective treatments. Owing to its good mechanical properties and biocompatibility, biodegradable Mg-Zn-Y-Nd alloy(ZE21B) has good application prospects in vascular ***, too fast degradation and delayed endothelialization are the bottleneck problem to limit its further application. In this study, the bio-inspired coating barnacle cement cp19k is constructed on ZE21B surface through electrostatic spraying to improve the corrosion resistance and pro-endothelialization ability. The coating was evaluated through electrochemistry, static immersion corrosion,in vitro blood experiments and cell experiments. Cp19k effectively improved the corrosion resistance of the substrate ZE21B, reduced the degradation rate, improved endothelial cell proliferation and migration capabilities,inhibited smooth muscle cells proliferation and regulated contractile phenotype, inhibited macrophage adhesion,regulated macrophage M2 phenotype, and reduced the expression of inflammatory factor of TNF-a and inhibited fibroplasia in vivo. Our data indicated that the barnacle cement cp19k coating had potential application on the surface modification of Mg alloy cerebrovascular stent.

关键词： Barnacle cement cp19k Biodegradable magnesium alloy Cerebrovascular stent M2 phenotype Pro-endothelialization

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面向专网的信息能源协同关键技术研究

移动通信 2024年第8期48卷 96-101页

作者：席思雨董江波马力鹏王文硕韩同欢孙伟齐航中国移动通信集团设计院有限公司北京100080

随着双碳战略的落地,移动网络方案不仅要实现依据业务变化的特点进行网络方案的制定与优化,也需要结合能耗与业务需求多种目标,进行精准规划及优化,从而在提升网络建设投资精准度的同时实现绿色低碳网络,因此提出了一种基于NP-MAPPO算... 详细信息

随着双碳战略的落地,移动网络方案不仅要实现依据业务变化的特点进行网络方案的制定与优化,也需要结合能耗与业务需求多种目标,进行精准规划及优化,从而在提升网络建设投资精准度的同时实现绿色低碳网络,因此提出了一种基于NP-MAPPO算法的端网协同优化方案,通过同时降低组网环境中基站及终端的能耗实现绿色组网方案,根据得到的奖励值收敛曲线,所提算法相较于IPPO及MADDPG能探索到更高的奖励值,相较于MAPPO能更快地达到收敛。

关键词：信息能源协同端网协同 NP-MAPPO 绿色组网

Humidity and temperature sensor based on GOQDs-PVA coated tapered no-core fiber combined with FBG

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Optoelectronics Letters 2020年第6期16卷 428-432页

作者： CHENG qi-hang Zhang Ai-ling PAN Hong-gang LI Wen SUN Ce Tianjin Key Laboratory of Film Electronic and Communication Devices Engineering Research Center of Communication Devices and TechnologyMinistry of EducationSchool of Electrical and Electronic EngineeringTianjin University of TechnologyTianjin 300384China

A simple structure optical fiber sensor for relative humidity(RH) and temperature measurement is proposed and verified in this paper, which is based on graphene oxide quantum dots and polyvinyl alcohol(GOQDs-PVA) composite coated tapered no-core fiber(NCF) combined with a fiber Bragg grating(FBG). FBG is insensitive to humidity and sensitive to temperature, which is used to compensate temperature of the sensor. Experimental results show this sensor has humidity sensitivity of 143.27 pm/%RH ranging from 30%RH to 80%RH and the temperature sensitivity of 9.21 pm/℃. The proposed sensor has advantages of simple structure, good repeatability, and good stability, which is expected to be used in both RH and temperature measurement in biological and chemical fields.

关键词： NCF red Humidity and temperature sensor based on GOQDs-PVA coated tapered no-core fiber combined with FBG PVA