检索结果-南通市图书馆

Practical Privacy-Preserving ROI Encryption System for Surveillance Videos Supporting Selective Decryption

在线全文

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第12期141卷 1911-1931页

作者： Chan Hyeong Cho Hyun min song Taek-Young Youn Department of Cyber Security Dankook UniversityYonginGyeonggi-Do16890Republic of Korea

With the advancement of video recording devices and network infrastructure,we use surveillance cameras to protect our valuable *** paper proposes a novel system for encrypting personal information within recorded surveillance videos to enhance efficiency and *** proposed method leverages Dlib’s CNN-based facial recognition technology to identify Regions of Interest(ROIs)within the video,linking these ROIs to generate unique *** IDs are then combined with a master key to create entity-specific keys,which are used to encrypt the ROIs within the *** system supports selective decryption,effectively protecting personal information using surveillance ***,the system overcomes the limitations of existing ROI recognition technologies by predicting unrecognized frames through *** research validates the proposed technology through experimental evaluations of execution time and post-processing techniques,ensuring comprehensive personal information *** for setting the thresholds used in this process are also *** the proposed method could serve as an effective solution to security vulnerabilities that traditional approaches fail to address.

关键词： Privacy de-identification selective decryption surveillance video

Tracking Control of Hypersonic Vehicle with Input Saturation Based on Adaptive Back-Stepping Method 36

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tracking Control of Hypersonic Vehicle with Input Saturation...

Recent Advances of Electrocatalyst and Cell Design for Hydrogen Peroxide Production

第36届中国控制会议

作者： SUN Jing-guang song Shen-min Department of Control Science and Engineering Harbin Institute of Technology

ISBN: (纸本)9781538629185

This thesis studies the tracking control problem of hypersonic vehicle subject to model parameter uncertainties, external disturbance and input saturation. Firstly, the feedback linearization for longitudinal model of hypersonic vehicle is reasonably decomposed into subsystems that include velocity and altitude subsystem. Secondly, the auxiliary system is introduced to design the anti-saturation adaptive back-stepping controller using dynamic surface control（DSC） technique and compensating signals, which not only avoids the explosion of complexity in the back-stepping design, but also removes the effect of the error caused by the first-order filter. Finally, Lyapunov theory is used to prove the stability of the designed controller strictly, and the numerical simulation of the longitudinal model of the hypersonic vehicle is carried out, which further confirms the robustness and effectiveness of the designed control scheme.

关键词： hypersonic vehicle back-stepping method tracking control input saturation

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Nano-Micro Letters 2023年第6期15卷 270-303页

作者： Xiao Huang min song Jingjing Zhang Tao Shen Guanyu Luo Deli Wang Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China Hubei Key Laboratory of Processing and Application of Catalytic Materials College of Chemistry and Chemical EngineeringHuanggang Normal UniversityHuanggang 438000People’s Republic of China

Electrochemical synthesis of H_(2)O_(2) via a selective two-electron oxygen reduction reaction has emerged as an attractive alternative to the current energy-consuming anthraquinone process. Herein, the progress on electrocatalysts for H_(2)O_(2) generation, including noble metal, transition metalbased, and carbon-based materials, is summarized. At first, the design strategies employed to obtain electrocatalysts with high electroactivity and high selectivity are highlighted. Then, the critical roles of the geometry of the electrodes and the type of reactor in striking a balance to boost the H_(2)O_(2) selectivity and reaction rate are systematically discussed. After that, a potential strategy to combine the complementary properties of the catalysts and the reactor for optimal selectivity and overall yield is illustrated. Finally, the remaining challenges and promising opportunities for highefficient H_(2)O_(2) electrochemical production are highlighted for future studies.

关键词： Electrochemical synthesis H_(2)O_(2) Oxygen reduction reaction Electrocatalyst

The preparation and performance of lignin-based activated carbon fiber adsorbents for treating gaseous streams

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2017年第3期11卷 328-337页

作者： min song Wei Zhang Yongsheng Chen Jinming Luo John C. Crittenden Key Laboratory of Energy Thermal Conversion and Control (ministry of Education) School of Energy and Environment Southeast University Nanjing 210096 China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental Engineering East China University of Science and Technology Shanghai 200237 China Brook Byers Institute for Sustainable System School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta GA 30332-0595 USA

Two types of lignin-based carbon fibers were prepared by electrospinning method. The first was activated with Fe304 （LCF-Fe）, and the second was not activated with Fe3O4 （LCF）. Gas phase adsorption isotherms for toluene on LCF-Fe and LCF were studied. The gas phase adsorption isotherm for 0% RH showed LCF-Fe have about 439 mg/g adsorption capacity which was close to that of commercially available activated carbon （500 rag/g）. The Dubinin-Radushkevich equation described the isotherm data very well. Competitive adsorption isotherms between water vapor and toluene were measured for their RH from 0 to 80%. The effect of humidity on toluene gas-phase adsorption was predicted by using the Okazaki et al. model. In addition, a constant pattern homogeneous surface diffusion model （CPHSDM） was used to predict the toluene breakthrough curve of continuous flow-packed columns containing LCF-Fe, and its capacity was 412 mg/g. Our study, which included material characterization, adsorption isotherms, kinetics, the impact of humidity and fixed bed performance modeling, demonstrated the suitability of lignin-based carbon fiber for volatile organic compound removal from gas streams .

关键词： lignin carbon fiber electrospinning toluene humidity

Simultaneous determination of indapamide,perindopril and perindoprilat in human plasma or whole blood by UPLC-MS/MS and its pharmacokinetic application

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2018年第5期8卷 333-340页

作者： Yi Tao Sheng Wang Lei Wang min song Taijun Hang Department of Pharmaceutical Analysis China Pharmaceutical University Jiangsu Jiayi Pharmaceutical Co. Ltd.

Simple and sensitive methods were developed for the determination of indapamide, perindopril and its active metabolite perindoprilat in human plasma or whole blood by hyphenated ultra-performance li- quid chromatography-mass spectrometry （UPLC-MS/MS）. lndapamide-d3, perindopril-d4 and perindoprilat-d4 were used as the internal standards. The separation was performed on a Thermo BDS Hypersil C18 column （4.6 mm × 100 mm, 2.4 μm） for indapamide and perindopril simultaneously following a protein precipitation pretreatment of the biosamples. The separation of perindoprilat was achieved independently on a phenomenex PFP column （4.6 mm × 150 mm, 5 μm）. All the analytes were quantitated with positive electrospray ionization and multiple reactions monitoring mode. The assay exhibited a linear range of 1-250 ng/mL for indapamide, 0.4-100 ng/mL for perindopril and 0.2-20 ng/mL for perindoprilat. The methods were fully validated to meet the requirements for bioassay in accuracy, precision, recovery, reproducibility, stabilities and matrix effects, and successfully applied to the pharmacokinetic study of perindopril tert-butylamine/indapamide compound tablets in Chinese healthy volunteers and the comparative pharmacokinetic study between plasma and whole blood.

关键词： Indapamide Perindopril Perindoprilat Pharmacokinetics LC-MS/MS

Surface reconstruction enabled o-PdTe@Pd core-shell electrocatalyst for efficient oxygen reduction reaction

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第8期35卷 314-318页

作者： min song Qian Zhang Tao Shen Guanyu Luo Deli Wang Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074China

Palladium-based alloy catalysts have been employed as one of the potential candidates for oxygen reduc-tion reaction(ORR),but the dissolution of transition metal hinders their ***,structure or-dered PdTe intermetallic with Pd shell(o-PdTe@Pd)are synthesized via an electrochemical etching driven surface reconstruction *** surface reconstruction could tune the electronic structure,weaken the adsorption energy of reaction intermediates on o-PdTe@Pd,resulting in enhanced electrocatalytic ac-tivity for *** mass activity of o-PdTe@Pd is about 3.3 and 2.7 times higher than that of Pd/C in acid and alkaline,***,the half-potentials for ORR decay only about 44 mV and 12 mV after 30 k cycles accelerated durability test in acid and alkaline media,*** enhanced dura-bility originates from the resistance of Te atoms dissolve in the ordered PdTe intermetallic core and the core-shell *** assembled in a Zn-air battery,o-PdTe@Pd electrode delivers a higher specific capacity(794 mAh/g)and better cycling stability than Pt/C.

关键词： Surface reconstruction Core-shell structure Intermetallic Oxygen reduction reaction Tellurium

Building a greener future—Progress of the green building technology in the “13th Five-Year Plan” of China

在线全文

学校读者我要写书评

暂无评论

Building Simulation 2022年第10期15卷 1705-1707页

作者： min song Xue Liu Shan Hu Quan Wen Da Yan The Administrative Center for China's Agenda 21 Beijing 100038China Building Energy Research Center School of ArchitectureTsinghua UniversityBeijing 100084China

The building sector plays an important role in energyconservation and carbon neutrality in *** the Building Energy Research Center of TsinghuaUniversity,carbon dioxide(CO_(2))emissions account for38%of the total emissions,of which 16%and 22%arecontributed by building construction and operation,respectively(Hu et al.2022),Hence,promoting greenbuildings is proposed as an effective solution to the keyproblems of building industry development,including lowlabor productivity,high consumption of building materials,and high COz emissions in construction and *** are environmentlly responsible and resource-efficient throughout their life cycle from siting,design,andconstruction to operation,maintenance,renovation,*** aim to use energy,water,and otherresources ficiently,while protecting occupant health andimproving productivity,adopting eco-friendly materials,and reducing the production of waste and pollution.

关键词： Building emissions construction

[Na(DB18-C-6)(H2O)2][Na(DB18-C-6)(SCN)2]：Two-Di-mensional Network Complex Assembled by π-π Stacking Interactios,Hydrogen Bonds and Electrostatic Interactions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2002年第5期20卷 424-426页

作者： De‐Zhong Zhu Xing‐min song Jian‐min Dou Ying Liu Da‐Qi Wang Department of Chemistry Liaocheng Teacher's College Liaocheng 252000

A novel two‐dimensional network dibenzo‐18‐crown‐6 (DB18‐C6) complex: [Na (DB18‐C‐6) (H 2 O) 2 ] [Na (DB18‐C‐6) (SCN) 2 ] has been isolated and characterized by elemental, IR and X‐ray diffraction analysis. The crystal structure belongs to monoclinic, space group P 2 1 /c with cell dimensions a = 1.06178(7), b = 1.40243(8), c = 3.03496(19) nm, β = 90.4220(10)°, V = 4.5292(5) nm 3 , Z=4, D calcd =1.351 g/ cm 3 , F (000) = 1936, R 1 = 0.0369, wR 2 = 0.0821. The most interesting feature in this structure is that complex cation and complex anion form a two‐dimensional network via τ‐τ stacking interactions, hydrogen bonds and electrostatic interactions.

关键词： τ‐τ stacking interactions hydrogen bonds crown ether DB18‐crown‐6 crystal structure

Effects of insulin aspart and metformin on gestational diabetes mellitus and inflammatory markers

在线全文

学校读者我要写书评

暂无评论

World Journal of Diabetes 2023年第10期14卷 1532-1540页

作者： Yan Wang min song Bang-Ruo Qi Department of Obstetrics and Gynecology Sanya Women and Children’s Hospital Managed by Shanghai Children’s Medical CenterSanya 572099Hainan ProvinceChina

BACKGROUND Gestational diabetes mellitus(GDM)refers to hyperglycemia caused by insulin resistance or insufficient insulin secretion during *** with GDM have a high risk of pregnancy complications,which can adversely affect both maternal and fetal ***,early diagnosis,treatment and monitoring of GDM are *** recent years,a new treatment scheme represented by insulin aspart combined with metformin has received increasing *** To explore the effects of insulin aspart combined with metformin on patients with GDM and inflammatory *** From April 2020 to September 2022,124 patients with GDM in Sanya Women and Children’s Hospital Managed by Shanghai Children’s Medical Center were collected and analyzed *** control group(CG)comprised 62 patients treated with insulin aspart alone,and 62 patients treated with insulin aspart and metformin formed the observation group(OG).Before and after treatment,improvement of blood-glucose-related indexes[fasting blood glucose(FBG),2-h postprandial glucose(2h PG)and hemoglobin A1c(HbA1c)],serum related factor[serum homocysteine(Hcy)],serum inflammatory cytokines[tumor necrosis factor(TNF)-α,interleukin(IL)-6 and C-reactive protein(CRP)]were compared between the two *** clinical efficacy,adverse pregnancy outcomes and incidence of pregnancy complications were compared between the two *** After treatment,the levels of FBG,2h PG,HbA1c,Hcy,TNF-α,IL-6 and CRP in both groups were significantly decreased(Pmin are effective for treatment of GDM,which can reduce blood-glucoserelated indexes,Hcy and serum inf

关键词： Insulin aspart Metformin Gestational diabetes mellitus Efficacy Homocysteine Tumor necrosis factor-α Interleukin-6 C-reactive protein