检索结果-南通市图书馆

Multi-Rate Sampled-Data Control for a Class of Nonlinear Systems via Input-Lyapunov Matching 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

Multi-Rate Sampled-Data Control for a Class of Nonlinear Sys...

Dynamic simulation of GEH-IES with distributed parameter characteristics for hydrogen-blending transportation

第36届中国控制会议

作者： Jinping jia Weisheng chen hao Dai School of Mathematics and Statistics Xidian University School of Aerospace Science and Technology Xidian University

ISBN: (纸本)9781538629185

This paper studies the sampled-data control problem for a class of nonlinear systems. A multi-rate digital controller is designed by combining the input-Lyapunov matching approach and the multi-rate approach. The proposed control scheme ensures the stability of the closed-loop sampled-data system. Compared with emulated strategies, our controller has the form of series in power of sampling period, and preserves the stabilization property of the continuous-time controller at the sampling instants. These advantages will produce better control performance.

关键词： Multi-Rate Sampling Nonlinear System Sampled-Data System Input-Lyapunov Matching

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

Frontiers in Energy 2024年第4期18卷 506-524页

作者： Dengji ZHOU jiarui hao Wang XIAO chen WANG Chongyuan SHUI Xingyun jia Siyun YAN Key Laboratory of Power Machinery and Engineering of the Ministry of Education Shanghai Jiao Tong UniversityShanghai 200240China Sichuan Research Institute Shanghai Jiao Tong UniversityChengdu 610042China West Pipeline Company National Petroleum and Natural Gas Pipe Network Group Co.Ltd.Urumqi 830012China Institute of Intelligent Manufacturing Modern Industry Xinjiang UniversityUrumqi 830046China

For the purpose of environment protecting and energy saving,renewable energy has been distributed into the power grid in a considerable ***,the consuming capacity of the power grid for renewable energy is relatively *** an effective way to absorb the excessive renewable energy,the power to gas(P2G)technology is able to convert excessive renewable energy into ***-blending natural gas pipeline is an efficient approach for hydrogen ***,hydrogen-blending natural gas complicates the whole integrated energy system(IES),making it more problematic to cope with the equipment failure,demand response and dynamic ***,dynamic simulation of distribution parameters of gas-electricity-hydrogen(GEH)energy system,especially for hydrogen concentration,still remains a *** dynamics of hydrogen-blending IES is *** tackle the issue,an iterative solving framework of the GEH-IES and a cell segment-based method for hydrogen mixing ratio distribution are proposed in this *** typical numerical cases studying the conditions under which renewables fluctuate and generators fail are conducted on a real-word *** results show that hydrogen blending timely and spatially influences the flow parameters,of which the hydrogen mixing ratio and gas pressure loss along the gas pipeline are negatively correlated and the response to hydrogen mixing ratio is ***,the hydrogen-blending amount and position also have a significant impact on the performance of the compressor.

关键词： gas-electricity IES dynamic simulation hydrogen blending power to gas(P2G) renewable energy

Exfoliated Mg–Al–Fe layered double hydroxides/polyether sulfone mixed matrix membranes for adsorption of phosphate and fluoride from aqueous solutions

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 Environmental Sciences 2018年第8期30卷 63-73页

作者： Zhiqian jia Shuang hao Xiaoyu Lu Lab for Membrane Science and Technology College of Chemistry Beijing Normal University

Mg–Al–Fe layered double hydroxides（LDHs） were exfoliated and incorporated in polyether sulfone membranes for the removal of phosphate and fluoride for the first time. The exfoliation methods, coagulation bath, LDH amount, interfering ions, adsorption isotherm,desorption and reuse of the membranes were investigated. It was found that LDHs could be quickly exfoliated in formamide/N,N-dimethylformamide（DMF） solvent mixtures with sodium carboxymethyl cellulose as a stabilizer. The membranes displayed much higher adsorption capacity for phosphate（5.61 mg/g） and faster adsorption rate than the unexfoliated materials. With increased DMF content in the coagulation bath, the static and dynamic adsorption capacity rose. Interference from Cl-and SO4^（2-）（50 mg/L） on adsorption of phosphates was not apparent. The membranes displayed excellent reusability in dynamic adsorption/desorption. The membranes also showed high adsorption capacity for fluorides（1.61 mg/g）.

关键词： Layered double hydroxides Membrane Adsorption Phosphate Fluoride Exfoliation

Overexpression pattern,function,and clinical value of proteasome 26S subunit non-ATPase 6 in hepatocellular carcinoma

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Oncology 2025年第2期16卷 76-93页

作者： Sheng-Sheng Zhou Yu-Ping Ye Yi chen Da-Tong Zeng Guang-Cai Zheng Rong-Quan He Bang-Teng Chi Lei Wang Qian Lin Qin-Yan Su Yi-Wu Dang Gang chen jia-Liang Wei Department of Medical Oncology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Clinical Laboratory The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Pathology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Pathology Redcross Hospital of Yulin CityYulin 537000Guangxi Zhuang Autonomous RegionChina Department of Surgery Redcross Hospital of Yulin CityYulin 537000Guangxi Zhuang Autonomous RegionChina

BACKGROUND In recent years,many studies have shown that proteasome 26S subunit non-ATPase 6(PSMD6)plays an important role in the occurrence and development of malignant ***,there are no reports on the evaluation of the potential role of PSMD6 in hepatocellular carcinoma(HCC).AIM To comprehensively evaluate the overexpression pattern and clinical significance of PSMD6 in HCC *** This study integrated PSMD6 mRNA expression profiles from 4672 HCC and 3667 non-HCC tissues,along with immunohistochemical scores from 383 HCC and adjacent tissues,to assess PSMD6 overexpression in *** regularly interspaced short palindromic repeats knockout technology evaluated PSMD6’s essential role in HCC cell *** enrichment analysis explored the molecular mechanism of PSMD6 abnormalities in *** sensitivity analysis and molecular docking analysed the effect of abnormal expression of PSMD6 on the drug sensitivity of HCC *** The results of 41 external and two internal datasets showed that PSMD6 mRNA(SMD=0.26,95%CI:0.09-0.42,P<0.05)and protein(SMD=2.85,95%CI:1.19-4.50,P<0.05)were significantly overexpressed in HCC *** integrated analysis results showed that PSMD6 had a significant overexpression pattern in HCC tissues(SMD=0.40,95%CI:0.15-0.66,P<0.05).PSMD6 knockout inhibited HCC cell growth(chronos scores<-1).Functional enrichment implicated ribosome biogenesis and RNA *** enrichment of signalling pathways such as RNA degradation,ribosomes,and chemical carcinogenesis—reactive oxygen *** sensitivity analysis and a molecular docking model showed that high expression of PSMD6 was associated with the tolerance of HCC cells to drugs such as ML323,sepantronium bromide,and *** PSMD6 effectively distinguished HCC tissues(AUC=0.75,95%CI:0.71-0.79).CONCLUSION This study was the first to discover that PSMD6 was overexpressed in HCC ***6 is essential for the growth of HCC cell

关键词： Hepatocellular carcinoma Proteasome 26S subunit non-ATPase 6 Clustered regularly interspaced short palindromic repeats Ribosome biogenesis RNA splicing

Comparison of the Photo-thermal Energy Conversion Behavior of Polar Bear Hair and Wool of Sheep

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 Bionic Engineering 2017年第4期14卷 616-621页

作者： hao jia jiansheng Guo Jingjing Zhu Key Laboratory of Textile Science and Technology Ministry of Education College of Textiles Donghua University Shanghai 201620 China

The unique photo-thermal energy conversion property of polar bear hairs has long been regarded as an essential element to enable this creature to survive in extremely cold conditions. However, the relevant research was ineffectual to provide sufficient evidence of its solar energy harvesting property. In this paper, the properties of polar bear hairs were analyzed and compared systematically with those of domestic sheep wool through the measurements in the aspects of photo-thermal conversion effi- ciency, scanning electron microscope, fluorescence spectral and transmission of UV-visible spectra. Moreover, this study was much more focused on exploring ultraviolet utilization property of polar bear hair than previous research. The research results demonstrated that the photo-thermal property of polar bear hair was superior to those of wool fiber, especially in harvesting ultraviolet part. The potential benefits of this research lie in the development of bionic solar energy collective devices, especially in artificial solar energy collection fibers and textile products.

关键词： photo-thermal conversion efficiency polar bear hair sheep wool fiber ultraviolet utilization fluorescence spectra

Majorana zero mode in the vortex of an artificial topological superconductor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2017年第5期60卷 49-59页

作者： hao-Hua Sun Jin-Feng jia Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education) Department of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093China

Majorana fermion （MF）, an exotic particle that is identical to its own antiparticle, was recently found in solid matter as a quasiparticle excitation, the Majorana zero mode （MZM）, in the vortex of an artificial topological superconductor （TSC）. This artificial TSC, first proposed by Fu and Kane in 2008, is a heterostructure made of a topological insulator BiETe3 and an s-wave superconductor NbSe2. This paper will briefly review the experimental progresses based on the Bi2Te3/NbSe2 heterostructure. All evidences are self-consistent and reveal that the MZM exists in the center of vortex. Those experimental results are also supported by theory. This finding is a milestone in the research ofMajorana fermions in solid state physics and a starting point of MZM＇s application in topological quantum computation.

关键词： Majorana fermion Majorana zero mode topological superconductor heterostructure vortex

A Cellular Automata Based Verifiable Multi-secret Sharing Scheme Without a Trusted Dealer

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2017年第2期26卷 313-318页

作者： LI Meng YU jia hao Rong College of Computer Science and Technology Qingdao University Shandong Provincial Key Laboratory of Computer Network

We proposed a verifiable multi-secret sharing scheme without a *** use cellular automata,having the properties of linear computations and parallel computations,to construct our *** linear computational property makes it possible to build a scheme without the assistance of a trusted dealer,and the parallel computational property contributes to the high efficiency of the *** function is used to realize the verification of shares,which also makes our scheme more *** security of the scheme is also analyzed.

关键词： Multi-secret sharing Verifiability Trusted dealer Cellular automata Hash function

A New Kinetic Mode During the Austenite-to-Ferrite Transformation in Fe–Mn and Fe–Mn–Mo Alloys

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2020年第7期33卷 975-980页

作者： Cong-Yu Zhang hao chen jia-Ning Zhu Chi Zhang Zhi-Gang Yang Key Laboratory of Advanced Materials of Ministry of Education School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

The kinetics of isothermal austenite(γ)-to-ferrite(α) transformation at various temperatures in Fe-2 Mn and Fe-2 Mn-0.5 Mo(wt%) alloys is investigated via dilatometry experiments and phase-field *** was interestingly found that Mo addition has a marginal effect on the transformation *** the well-known partitioning and partitionless transformation modes,a new kinetic mode,in which interface migration is controlled by interfacial diffusion,was *** phase-field model with considering interfacial segregation could well predict the transformation kinetics and the kinetic mode transition.

关键词： transformation austenite ferrite

Yogurt Intake Reduces All-Cause and Cardiovascular Disease Mortality: A Meta-Analysis of Eight Prospective Cohort Studies

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2020年第6期26卷 462-468页

作者： GAO Xiang jia Hai-yi chen Guo-chong LI cheng-yue hao Mo Research Institute of Health Development Strategies Fudan UniversityShanghai(200032)China School of Public Health Xuzhou Medical UniversityXuzhou(221004)China School of Public Health and Management Weifang Medical UniversityWeifangShandong Province(261053)China Department of Epidemiologyand Population Health Albert Einstein College of MedicineNY(10461)USA

Objective:To assess the relationship between yogurt intake and mortality risk from prospective cohort ***:The PubMed,EMBASE,and Web of Science databases were searched for all records related to yogurt intake and mortality risk[all-cause or cardiovascular disease(CVD)or cancer mortality]before October 1,*** Newcastle-Ottawa Quality Scale was used to estimate the quality of all eligible *** results of the highest and lowest categories of yogurt intake in each study were collected and the effect size was pooled using a random effects *** dose-response analysis was calculated using the generalized least squares trend estimation ***:Eight eligible cohort studies were included in this *** were 235,676 participants in the 8 studies,and the number of deaths was 14,*** with the lowest category,the highest category of yogurt intake was not significantly related with all cause mortality[hazard ratio(HR)=0.93;95%confidence interval(CI):0.85,1.01],CVD mortality(HR=0.92;95%CI:0.81,1.03)and cancer mortality(HR=0.97;95%CI:0.83,1.12).These studies were homogenous,since the homogeneity test showed that I2 was 28.7%,15.1%and 11.8%,***,yogurt intake 200 g/d was significantly associated with a lower all-cause mortality(HR=0.88;95%CI:0.80,0.96)and CVD mortality(HR=0.87;95%CI:0.77,0.99)in the subgroup *** dose-response analysis showed that yogurt intake of 200 g/d was inversely associated with all-cause mortality(P=0.041,HR=0.95,95%CI:0.92,1.00)and CVD mortality(P=0.009,HR=0.92,95%CI:0.86,0.98),and all of which were linear relationship(P>0.05).Conclusions:This review provided the evidence regarding yogurt intake can reduce all-cause and CVD *** some positive findings were identified,more high-quality cohort studies and randomized controlled trials are warranted on a possible protective effect of yoghurt on health.

关键词： yogurt mortality cardiovascular disease cancer meta-analysis