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Directed Acyclic Graph Blockchain for Secure Spectrum Sharing and Energy Trading in Power IoT

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China Communications 2023年第5期20卷 182-197页

作者： zixi zhang Mingxia zhang Yu Li Bo Fan Li Jiang School of Automation Guangdong-HongKong-Macao Joint Laboratory for Smart Discrete Manufacturing(Guangdong University of Technology)Guangzhou 510006China Chongqing Key Laboratory of Intelligent Perception and BlockChain Technology (Chongqing Technology and Business University)Chongqing 40067China Beijing Key Laboratory of Traffic Engineering College of Metropolitan Transportation(Beijing University of Technology)Beijing 100124China

Peer-to-peer(P2P)spectrum sharing and energy trading are promising solutions to locally satisfy spectrum and energy demands in power Internet of Things(IoT).However,implementation of largescale P2P spectrum sharing and energy trading confronts security and privacy *** this paper,we exploit consortium blockchain and Directed Acyclic Graph(DAG)to propose a new secure and distributed spectrum sharing and energy trading framework in power IoT,named spectrum-energy chain,where a set of local aggregators(LAGs)cooperatively confirm the identity of the power devices by utilizing consortium blockchain,so as to form a main ***,the local power devices verify spectrum and energy micro-transactions simultaneously but asynchronously to form local spectrum tangle and local energy tangle,***,an iterative double auction based micro transactions scheme is designed to solve the spectrum and energy pricing and the amount of shared spectrum and energy among power *** analysis and numerical results illustrate that the developed spectrum-energy chain and the designed iterative double auction based microtransactions scheme are secure and efficient for spectrum sharing and energy trading in power IoT.

关键词： power Internet of Things(IoT) spectrum sharing energy trading security and privacy consortium blockchain Directed Acyclic Graph(DAG) iterative double auction

Robust hydrogel adhesives for emergency rescue and gastric perforation repair

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Bioactive Materials 2023年第1期19卷 703-716页

作者： Jing Yu Yanyang Qin Yuxuan Yang Xiaodan Zhao zixi zhang Qiang zhang Yaqiong Su Yanfeng zhang Yilong Cheng School of Chemistry Xi’an Jiaotong UniversityXi’an710049China Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of StomatologyXi’an Jiaotong UniversityXi’an710049China Department of Dermatology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an Jiaotong UniversityXi’an710061China

Development of biocompatible hydrogel adhesives with robust tissue adhesion to realize instant hemorrhage control and injury sealing,especially for emergency rescue and tissue repair,is still ***,we report a potent hydrogel adhesive by free radical polymerization of N-acryloyl aspartic acid(AASP)in a facile and straightforward *** delicate adjustment of steric hindrance,the synergistic effect between interface interactions and cohesion energy can be achieved in PAASP hydrogel verified by X-ray photoelectron spectroscopy(XPS)analysis and simulation calculation compared to poly(N-acryloyl glutamic acid)(PAGLU)and poly(N-acryloyl amidomalonic acid)(PAAMI)*** adhesion strength of the PAASP hydrogel could reach 120 kPa to firmly seal the broken organs to withstand the external force with persistent stability under physiological conditions,and rapid hemostasis in different hemorrhage models on mice is achieved using PAASP hydrogel as physical ***,the paper-based Fe^(3+)transfer printing method is applied to construct PAASP-based Janus hydrogel patch with both adhesive and non-adhesive surfaces,by which simultaneous wound healing and postoperative anti-adhesion can be realized in gastric perforation model on *** advanced hydrogel may show vast potential as bio-adhesives for emergency rescue and tissue/organ repair.

关键词： Adhesive hydrogel Hydrogen bond Amino acid Emergency rescue Gastric perforation repair

Application of Urban Green Stormwater Infrastructure in Wetland Park Construction

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Journal of Landscape Research 2020年第6期12卷 1-5,8页

作者： zhang zixi MENG Jin Tianjin Chengjian University Tianjing 300384China

The positive role of urban green stormwater infrastructure(GIS)and wetland park construction in the process of“sponge city”construction is analyzed by expounding the connotation and problems of“sponge city”*** the analysis of relevant cases,the realization approaches of combing different types of GIS with wetland park landscape design are interpreted,and it is pointed out that different types of GIS can guide the further practice of“sponge city”construction.

关键词： Sponge city Green stormwater infrastructure(GIS) Wetland park Stormwater management

Injectable Self‑Healing Adhesive pH‑Responsive Hydrogels Accelerate Gastric Hemostasis and Wound Healing

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Nano-Micro Letters 2021年第5期13卷 118-134页

作者： Jiahui He zixi zhang Yutong Yang Fenggang Ren Jipeng Li Shaojun Zhu Feng Ma Rongqian Wu Yi Lv Gang He Baolin Guo Dake Chu Department of Gastroenterology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anPeople’s Republic of China Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of StomatologyXi’an Jiaotong UniversityXi’an 710049People’s Republic of China Department of Dermatology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine and Surgical Engineering Research Center of Shaanxi Province First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anPeople’s Republic of China Department of Experimental Surgery Xijing HospitalFourth Military Medical UniversityXi’anPeople’s Republic of China Department of Pathology Tangdu HospitalFourth Military Medical UniversityXi’anPeople’s Republic of China

Endoscopic mucosal resection(EMR)and endoscopic submucosal dissection(ESD)are well-established therapeutics for gastrointestinal neoplasias,but complications after EMR/ESD,including bleeding and perforation,result in additional treatment morbidity and even threaten the lives of ***,designing biomaterials to treat gastric bleeding and wound healing after endoscopic treatment is highly desired and remains a ***,a series of injectable pH-responsive selfhealing adhesive hydrogels based on acryloyl-6-aminocaproic acid(AA)and AA-g-N-hydroxysuccinimide(AA-NHS)were developed,and their great potential as endoscopic sprayable bioadhesive materials to efficiently stop hemorrhage and promote the wound healing process was further demonstrated in a swine gastric hemorrhage/wound *** hydrogels showed a suitable gelation time,an autonomous and efficient self-healing capacity,hemostatic properties,and good *** the introduction of AA-NHS as a micro-cross-linker,the hydrogels exhibited enhanced adhesive strength.A swine gastric hemorrhage in vivo model demonstrated that the hydrogels showed good hemostatic performance by stopping acute arterial bleeding and preventing delayed bleeding.A gastric wound model indicated that the hydrogels showed excellent treatment effects with significantly enhanced wound healing with type I collagen deposition,α-SMA expression,and blood vessel *** injectable self-healing adhesive hydrogels exhibited great potential to treat gastric wounds after endoscopic treatment.

关键词： Injectable self-healing hydrogel Adhesive hydrogel Gastric hemostasis Gastric wound healing Endoscopic treatment

Application of Fractional order PID Control in Photovoltaic Integrated Distribution Network

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Application of Fractional order PID Control in Photovoltaic ...

Research on ADRC of Double Buck Inverter

作者： Rongjiang Tang Hejin Xiong zixi zhang School of Automation Wuhan University of Technology

When photovoltaic power generation is connected to the grid,the inverter merges the energy of the photovoltaic panel into the grid in the form of power,and the controller is required to control the DC side voltage after comparing with the maximum power tracking voltage of the photovoltaic system and tracking the DC side *** on the application of traditional PID control in the photovoltaic power generation system,we use fractional order PID to compare with ***,simulation analysis verifies that fractional order PID has better dynamic and static characteristics,adaptability and robustness.

关键词： Photovoltaic grid connection Fractional order PID Traditional PID Simulation

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Research on ADRC of Double Buck Inverter

作者： zixi zhang Hejin Xiong Rongjiang Tang School of Automation Wuhan University of Technology

The traditional double buck full bridge inverter adopts the hysteresis current control mode,and the current is in the half *** of its no bridge arm through,high voltage utilization and high efficiency,it is widely *** on the disturbance caused by power supply fluctuation,external noise and system parameter change,this paper proposes an auto disturbance rejection control（ADRC） *** simulation results show that the ADRC strategy can make the double buck full bridge inverter have good waveform tracking performance,good robustness,stability and high accuracy.

关键词： Double buck full bridge inverter PID ADRC Robustness Stability 1

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我国死刑复核程序之审视

黑龙江工业学院学报（综合版） 2017年第5期17卷 90-96页

作者：张子希中央财经大学法学院北京昌平102200

我国死刑复核权自2007年1月1日起统一收归最高人民法院后,积极地发挥着"纠错"与"限制死刑"等功能。但不能否认的是当下死刑复核制度尚存在诸多不足,如审理方式的非公开性、辩护律师的参与度不足、检察院对死刑复核监督的难以进行、被告... 详细信息

我国死刑复核权自2007年1月1日起统一收归最高人民法院后,积极地发挥着"纠错"与"限制死刑"等功能。但不能否认的是当下死刑复核制度尚存在诸多不足,如审理方式的非公开性、辩护律师的参与度不足、检察院对死刑复核监督的难以进行、被告人获得救济不能的问题等等,都严重限制了死刑复核作用的发挥,试通过对我国死刑复核现状的探究,提出对于死刑复核制度完善的意见。

关键词：死刑复核制度审理方式有效辩护检查监督司法救济

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诗性思维与写作教学

科教导刊 2020年第19期 143-144页

作者：张子西黔南民族师范学院贵州都匀558000

诗性思维是一种想象力极为发达的思维,早期的神话故事便是诗性思维的产物。在当代高中语文写作教学中,诗性思维能够让学生更好的解读课文,学习写作中的技巧。能够更好地适应各种写作文体的创作,对于文章的虚构性描写有很大的作用。同时... 详细信息

诗性思维是一种想象力极为发达的思维,早期的神话故事便是诗性思维的产物。在当代高中语文写作教学中,诗性思维能够让学生更好的解读课文,学习写作中的技巧。能够更好地适应各种写作文体的创作,对于文章的虚构性描写有很大的作用。同时,诗性思维还能培养学生的创新精神,对其成长有重要意义。

关键词：诗性思维想象力创新精神写作

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《行政许可法》适用范围限缩的原因与对策

河南教育学院学报（哲学社会科学版） 2009年第5期28卷 76-80页

作者：张子喜河南教育学院法律与经济系

《行政许可法》在施行中适用范围被逐步限缩。其原因主要包括:在理论上,我国对行政审批与行政许可的含义认识不统一;在法律规范性文件中,行政许可与行政审批的内涵与外延没有统一;《行政许可法》对行政许可设定界限不明确;不符合《行政... 详细信息

《行政许可法》在施行中适用范围被逐步限缩。其原因主要包括:在理论上,我国对行政审批与行政许可的含义认识不统一;在法律规范性文件中,行政许可与行政审批的内涵与外延没有统一;《行政许可法》对行政许可设定界限不明确;不符合《行政许可法》的行政许可事项为了继续存在被排除在该法的适用范围之外。为了解决这一问题,应当加强理论研究,统一对行政许可与行政审批的认识,通过立法或通过法律解释明确行政许可与行政审批的关系,防止二者被不合理地割裂。

关键词：行政许可行政审批《行政许可法》适用范围