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End-to-end Delay Analysis for Mixed-criticality WirelessHART Networks

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IEEE/CAA Journal of Automatica Sinica 2015年第3期2卷 282-289页

作者： Xi jin jintao Wang Peng zeng the Laboratory of Networked Control Systems Shenyang Institute of AutomationChinese Academy of Science University of Chinese Academy of Sciences Shenyang Institute of Automation Chinese Academy of Science

WirelessHART, as a robust and reliable wireless protocol, has been widely-used in industrial wireless sensoractuator networks. Its real-time performance has been extensively studied, but limited to the single criticality case. Many advanced applications have mixed-criticality communications, where different data flows come with different levels of importance or criticality. Hence, in this paper, we study the real-time mixedcriticality communication using WirelessHART protocol, and propose an end-to-end delay analysis approach based on fixed priority scheduling. To the best of our knowledge, this is the first work that introduces the concept of mixed-criticality into wireless sensor-actuator networks. Evaluation results show the effectiveness and efficacy of our approach. © 2014 Chinese Association of Automation.

关键词： Criticality (nuclear fission)

Physical properties of WSTi3515S burn-resistant titanium alloy

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Rare Metals 2016年第5期35卷 361-366页

作者： Yun-jin Lai ping-Xiang Zhang Xue-Min Zhang Xiang-Hong Liu Yong Feng Hong-Chao Kou Fan-Jiao Ma Wei-Dong zeng State Key Laboratory of Solidification Processing Northwestern Polytechnical University Western Superconducting Technologies Co. Ltd. School of Materials Science and Engineering Chang’an University

Development of burn-resistant titanium alloys is the most direct way of mitigating the ignition and propagation of titanium fires in jet engines. WSTi3515S alloy（Ti–35V–15Cr–0.3Si–0.1C） is a new high alloying beta type burn-resistant titanium alloy, belonging to Ti–V–Cr type alloys which have been made significant progress in engineering technology in the past 5 years. The physical properties of WSTi3515S burn-resistant titanium alloy such as the elastic properties and thermal properties were measured and analyzed in different conditions. The results show that both the Young＇s modulus and shear modulus of WSTi3515S alloy decrease slightly with the temperature increasing at the tested temperature range. The Poisson＇s ratio of WSTi3515S alloy is around 0.36. However, the thermal properties such as the specific heat, thermal diffusivity, thermal conductivity and thermal expansion increase with the temperature increasing, which results from the strengthening of lattice heat vibration at elevated temperature. And the room temperature density of WSTi3515S alloy is 5.295 gácm^（-3）.

关键词： Physical properties WSTi3515S alloy Extrusion Burn-resistant

Investigation on Effects of Mooring Line Fractures and Connector Failures for A Hybrid Modular Floating Structure System

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China Ocean Engineering 2022年第6期36卷 880-893页

作者： LIU Ya-qiong REN Nian-xin OU jin-ping School of Civil and Environmental Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China College of Civil Engineering and Architecture Hainan UniversityHaikou 570228China

The present work reports a Hybrid Modular Floating Structure(HMFS)system with typical malfunction *** effects of both fractured mooring lines and failed connectors on main hydrodynamic responses(mooring line tensions,module motions,connector loads and wave power production)of the HMFS system under typical sea con-ditions are comparatively *** results indicate that the mooring tension distribution,certain module motions(surge,sway and yaw)and connector loads(Mz)are significantly influenced by mooring line *** adjacent mooring line of the fractured line on the upstream side suffers the largest tension among the remaining mooring lines,and the case with two fractured mooring lines in the same group on the upstream side is the most dangerous among all cases of two-line failures in view of mooring line tensions,module motions and connector ***-fore,one emergency strategy with appropriate relaxation of a proper mooring line has been proposed and proved effective to reduce the risk of more progressive mooring line *** addition,connector failures substantially affect certain module motions(heave and pitch),certain connector loads(Fz and My)and wave power *** present work can be helpful and instructive for studies on malfunction conditions of modular floating structure(MFS)systems.

关键词： Hybrid Modular Floating Structure(HMFS)system mooring line fractures connector failures hydrodynamic responses emergency strategy

Naringin Inhibits Colorectal Carcinogenesis by Inhibiting Viability of Colorectal Cancer Cells

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Chinese Journal of Integrative Medicine 2023年第8期29卷 707-713页

作者： zeng Juan-ni TAN jin-yu MO Li Department of Anus-Intestines the Second Affiliated Hospital of Hunan University of Chinese MedicineChangsha(410008)China

Objective To explore the therapeutic effect of naringin on colorectal cancer(CRC)and the related *** Cell counting kit-8(CCK-8)assay and annexin V-FITC/PI assay were used to detect the effect of naringin(50–400µg/mL)on cell proliferation and apoptosis of CRC cells,*** scratch wound assay and transwell migration assay were used to assess the effect of naringin on CRC cell ***-week-old male nude mice were injected with HCT116 cells subcutaneously to establish the tumor xenograft *** was injected intraperitoneally at 50 mg/(kg·d),with solvent and 5-fluorouracil treatment as *** width and length of the tumors were measured and recorded every 6 days,and tumor tissues were photographed and weighed on the last day of the 24-d observation *** staining for caspase-3,proliferating cell nuclear antigen and TUNEL assay were used to evaluate the effect of naringin on cell proliferation and apoptosis in tumor *** body weight,food and water intake of mice were recorded,and the major organs in different treatment groups were weighed on the last day and stained with hematoxylin and eosin for histological ***,the routine blood indicators were *** CCK-8 and annexin V-FITC/PI results confirmed that naringin(100,200,and 400µg/mL)could inhibit proliferation and promote *** scratch wound assay and transwell migration assay results confirmed the inhibitory activity of naringin against CRC cells *** vivo results demonstrated the inhibitory effect of naringin on tumor growth with good *** Naringin inhibited colorectal carcinogenesis by inhibiting viability of CRC cells.

关键词： apoptosis colorectal cancer migration naringin proliferation tumor

Regulation of the photogenerated carrier transfer process during photoelectrochemical water splitting:A review

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Green Energy & Environment 2021年第4期6卷 479-495页

作者： Yaping Zhang Yuyu Bu Lin Wang jin-ping Ao Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices School of MicroelectronicsXidian UniversityXi'an710071China

Photoelectrochemical(PEC)water splitting is considered as an ideal technology to produce *** carrier migration is one of the most important roles in the whole process of PEC water *** includes bulk transfer inside of the photoelectrode and the exchange at the solid-liquid *** energy barriers during the migration process lead to the dramatic recombination of photogenerated hot carrier and the reducing of their redox ***,an applied bias voltage should be provided to overcome these energy barriers,which brings the additional loss of *** researches indicate that some methods for the regulation of photogenerated hot carrier,such as p-n junction,unique transfer nanochannel,tandem nanostructure and Z-Scheme transfer structure et al.,show great potential to achieve high-efficient PEC water overall splitting without any applied bias *** to now,many reviews have summarized and analyzed the methods to enhance the PEC or photocatalysis water splitting from the perspectives of materials,nanostructures and surface modification ***,few of them focus on the topic of photogenerated carrier transfer regulation,which is an important and urgent developing *** this reason,this review focuses on the regulation of photogenerated carriers generated by the photoelectrodes and summarizes different advanced methods for photogenerated carrier regulation developed in recent *** comments and outlooks are also provided at the end of this review.

关键词： PEC water Splitting Photogenerated carrier migration Charge transfer regulation Energy band engineering Solid-liquid interface modification

Compressed SNR-and-Channel Estimation for Beam Tracking in 60-GHz WLAN

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China Communications 2015年第6期12卷 46-58页

作者： GAO Bo ZHANG Changming jin Depeng zeng Lieguang State Key Laboratory on Microwave and Digital Communications Department of Electronic Engineering Tsinghua University

Signal-to-noise ratio （SNR） and channel estimations are critical for 60-GHz communications to track the optimal trans- mission and reception beam pairs. However, the excessive pilot overhead for the estima- tions severely reduces system throughput in fast-rotation scenarios. In order to address this problem, we firstly demonstrate the potential sparseness property of 60-GHz channel in beam tracking; subsequently, via exploiting this property, we propose a novel compressed SNR-and-channel estimation. The estimation is conducted in a three-stage fashion, includ- ing the unstructured estimation, nonzero-tap detection, and structured estimation with non- zero-tap location. Numerical simulations show that, in the case of substantial reduction of the pilot overhead, the proposed estimator still reveals a significant improvement in terms of estimation performance over the scheme in IEEE 802.1 lad. Furthermore, it is also demon- strated that the proposed SNR and channel estimators can approach the lower bounds in sparse channels so long as SNR exceeds 8 dB.

关键词： 60-GHz communications beamtracking channel estimation SNR estimation sparse channel

The　effect　of　magnetic　field-free　space　on　the　acoustic　behavior　of　budgerigars(Me-lopsittacus　undul

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Acta Seismologica Sinica(English Edition) 1998年第4期11卷 487-493页

作者： jin-Chang Jiang (1) Hai-Qiang jin (2) Yun-Fang Lin (2) Hao Chen (1) Xin-Yu Yang (1) Xiao-ping zeng (2) Xun Zhou (2) 1. Institute of Biophysics Academia Sinica 100101 Beijing China 2. Institute of Geophysics China Seismological Bureau 100081 Beijing China

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Ｔｈｅｅｆｆｅｃｔｏｆｍａｇｎｅｔｉｃｆｉｅｌｄ－ｆｒｅｅｓｐａｃｅｏｎｔｈｅａｃｏｕｓｔｉｃｂｅｈａｖｉｏｒｏｆｂｕｄｇｅｒｉｇａｒｓ（Ｍｅ－ｌｏｐｓｉｔｔａｃｕｓｕｎｄｕｌａｆｕｓ）ＪＩＮ－ＣＨＡＮＧＪＩＡＮＧ１）（蒋锦昌），ＨＡＩ－ＱＩＡＮＧＪ...

关键词： effect magnetic The Me-lopsittacus budgerigars space the field-free

Distributed Dispatch of Multiple Energy Systems Considering Carbon Trading

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CSEE Journal of Power and Energy Systems 2023年第2期9卷 459-469页

作者： Yue Xiang Mengqiu Fang Junyong Liu pingliang zeng ping Xue Gang Wu College of Electrical Engineering Sichuan UniversityChengdu 610065China School of Automation Hangzhou Dianzi UniversityHangzhou 310018China State Grid Sichuan Technical Training Center Chengdu 610072China State Grid Sichuan Economic Research Institute Chengdu 610065China

As an integrated carrier of energy production,transmission,distribution,conversion,storage,and utilization,multiple energy systems(MESs)have significant low-carbon *** paper proposes a hierarchical distributed dispatch model of MESs considering carbon trading,which is composed of the lower autonomous operation level of each MES and the upper coordinated control *** carbon emission sources are considered,including combined heat and power(CHP)units,gas boilers,and power to gas(P2G)*** transactive control(TC)mechanism is used to solve the model by introducing a virtual price *** the case study based on a 3-MES system,the effectiveness of the proposed distributed method is proved by comparison with a centralized ***,the impacts of different carbon prices on MESs with different resource endowments are analyzed from the aspects of scheduling results,carbon emissions,clean energy consumption rate,and comprehensive operating costs.

关键词： Carbon trading distributed optimal dispatch transactive control multiple energy systems

Nonlinear Dynamics in a New Double Chain-Model of DNA

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Communications in Theoretical Physics 2001年第12期36卷 737-742页

作者： KONG De-Xing LOU Sen-Yue zeng jin Department of Applied Mathematics Shanghai Jiao Tong University Shanghai 200030 China Department of PhysicsShanghai Jiao Tong UniversityShanghai 200030China Department of Applied Mathematics Shanghai Jiao Tong University Shanghai 200030 China

We investigate the mechanics ofa new double chain-model of DNA. The model consists of two long elastic homogeneous strands (or rods), which represent two polynucleotide chains of the DNA molecule, connected with each other by an elastic membrane (or some linear springs) representing the hydrogen bonds between the base pairs of the two chains. The nonlinear dynamical equations are derived and some solitary wave solutions are discussed. By the way,our model can be regarded as the mechanical model of cubic nonlinear Klein-Gordon equation and 4-field equation.

关键词： double chain-model of DNA, nonlinear dynamics, solitary wave solutions