检索结果-南通市图书馆

CHINA'S REFORM JOURNEY

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Beijing Review 2024年第30期67卷 18-20页

作者： michael Zakkour Beijing Review U.S.-based consulting firms 5 New Digital China BrightStar

The outlook for China's future prosperity,progress and harmony is *** a period where the country had to navigate a global pandemic,significant geopolitical dynamics,and changes to a society dependent on modern technologies for commerce,community and nation-building,the future looks bright and we can and should look to recent history for proof of ***'s reform and opening-up era officially began in *** to that point,China was overwhelmingly rural,mainly isolated from the rest of the world and the global economy,and its economy had largely stalled.

关键词： harmony proof global

Bonding for a Better Tomorrow Youth festival serves as precious avenue for Chinese and African youth to understand each other, develop lasting relationships

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

ChinAfrica 2024年第8期16卷 56-57页

作者： michael MUDAVADI House of 4 Kenya

The 8th China-Africa Youth Festival was a precious opportunity to not only learn about Chinese culture but also to explore the rich tapestry of cultures of different African *** had the chance to talk to young leaders from across the continent,fostering new bonds and connections that can potentially benefit everyone involved in the *** cultural exchange not only broadened our understanding but also paved the way for collaboration and enduring friendships that could be good for personal development.

关键词： everyone precious African

REBOUND AND RESILIENCE

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Beijing Review 2024年第11期67卷 18-19页

作者： michael Zakkour U.S.-based consulting firms 5 New Digital and China BrightStar

The Chinese economy has made real strides toward renewed long-term *** internal and external headwinds,China is on a path of focused,strategic,long-term recovery and *** Chinese economy managed to grow 5.2 percent in ... 详细信息

关键词： spite economy winds

THE GREAT‘OVERCAPACITY’DEBATE

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Beijing Review 2024年第21期67卷 16-17页

作者： michael Zakkour U.S.-based consulting firms 5 New Digital and China BrightStar

Modern China and its wealthwere initially forged in the country's factories,making virtually every category of consumer and industrial product that the rest of the world wanted and for which global companies sought a ... 详细信息

关键词： companies solution. initially

Past, Present and Future: A Role for Liquid Biofuels in Transitioning to Net Zero?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Resources 2024年第5期15卷 107-124页

作者： David michael Mousdale Beò carta Ltd. Glasgow United Kingdom

Over the last decade, the uptake rate of first-generation biofuels (ethanol and biodiesel) has decelerated as low blend limits have increased only slowly and extreme volatility in oil prices has limited investment in biofuels production infrastructure. Concerns over the environmental impacts of large-scale biofuels production combined with tariff barriers have greatly restricted the global trade in biofuels. First-generation biofuels produced either by fermentation of sugars from maize or sugarcane (ethanol) or transesterification of triglycerides (biodiesel) presently contribute less than 4% of terrestrial transportation fuel demand and techno-economic modelling foresees this only slowly increasing by 2035. With internal combustion and diesel engines widely anticipated as being phased out in favour of electric power for motor vehicles, a much-reduced market demand for biofuels is likely if global demand for all liquid fuels declines by 2050. However, second-generation, thermochemically produced and biomass-derived fuels (renewable diesel, marine oils and sustainable aviation fuel) have much higher blend limits;combined with policies to decarbonise the aviation and marine industries, major new markets for these products in terrestrial, marine and aviation sectors may emerge in the second half of the 21st century.

关键词： Biofuels Ethanol Biodiesel Renewable Diesel Sustainable Aviation Fuel Biomass

Erectile dysfunction in chronic kidney disease:From pathophysiology to management

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Nephrology 2015年第3期4卷 379-387页

作者： Eirini Papadopoulou Anna Varouktsi Antonios Lazaridis Chrysoula Boutari michael doumas 2nd Propaedeutic Department of Internal Medicine Aristotle University

Chronic kidney disease(CKD) is encountered in millions of people worldwide,with continuously rising incidence during the past decades,affecting their quality of life despite the increase of life expectancy in these *** of sexual function is common among men with CKD,as both conditions share common pathophysiological causes,such as vascular or hormonal abnormalities and are both affected by similar coexisting comorbid conditions such as cardiovascular disease,hypertension and diabetes *** estimated prevalence of erectile dysfunction reaches 70% in end stage renal disease ***,sexual dysfunction remains under-recognized and under-treated in a high proportion of these patients,a fact which should raise awareness among clinicians.A multifactorial approach in management and treatment is undoubtedly required in order to improve patients' quality of life and cardiovascular outcomes.

关键词：慢性肾脏病患者治疗方法临床分析

Insights into optimizing exosome therapies for acute skin wound healing and other tissue repair

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Medicine 2024年第2期18卷 258-284页

作者： Tianjing Sun Mo Li Qi Liu Anyong Yu Kun Cheng Jianxing Ma Sean Murphy Patrick michael McNutt Yuanyuan Zhang Department of Emergency Affiliated Hospital of Zunyi Medical UniversityZunyi563003China Department of Nephrology Affiliated Hospital of Zunyi Medical UniversityZunyi563003China Division of Pharmacology and Pharmaceutical Sciences School of PharmacyUniversity of Missouri-Kansas CityKansas CityMO64108USA Department of Biochemistry Wake Forest University School of MedicineWinston-SalemNC27157USA Wake Forest Institute of Regenerative Medicine Wake Forest School of MedicineWinston-SalemNC27109USA

Exosome therapy holds great promise as a novel approach to improve acute skin wound *** review provides a comprehensive overview of the current understanding of exosome biology and its potential applications in acute skin wound healing and ***,small extracellular vesicles secreted by various stem cells,have emerged as potent mediators of intercellular communication and tissue *** advantage of exosome therapy is its ability to avoid potential risks associated with stem cell therapy,such as immune rejection or stem cells differentiating into unwanted cell ***,further research is necessary to optimize exosome therapy,not only in the areas of exosome isolation,characterization,and engineering,but also in determining the optimal dose,timing,administration,and frequency of exosome ***,optimization of exosome therapy is critical for the development of more effective and safer exosome-based therapies for acute skin wound healing and other diseases induced by cancer,ischemia,or *** review provides valuable insights into the potential of exosome therapy and highlights the need for further research to optimize exosome therapy for clinical use.

关键词： exosomes stem cells therapeutic impact skin wound healing

A review of control strategies used for morphing aircraft applications

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 Aeronautics 2024年第4期37卷 436-463页

作者： Muhammed S.PARANCHEERIVILAKKATHIL Jafar S.PILAKKADAN Rafic M.AJAJ Mohammadreza AMOOZGAR Davood ASADI Yahya ZWEIRI michael I.FRISWELL Department of Aerospace Engineering Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Department of Aerospace Engineering Advanced Research and Innovation Center(ARIC)Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Department of Mechanical Materials&Manufacturing EngineeringUniversity of NottinghamNottingham NG72RDUK Department of Aerospace Engineering Adana Alparslan Turkes Science and Technology UniversityTurkey College of Engineering Swansea UniversitySwansea SA18ENUK

This paper reviews the various control algorithms and strategies used for fixed-wing morphing aircraft applications. It is evident from the literature that the development of control algorithms for morphing aircraft technologies focused on three main areas. The first area is related to precise control of the shape of morphing concepts for various flight conditions. The second area is mainly related to the flight dynamics, stability, and control aspects of morphing aircraft. The third area deals mainly with aeroelastic control using morphing concepts either for load alleviation purposes and/or to control the instability boundaries. The design of controllers for morphing aircraft/wings is very challenging due to the large changes that can occur in the structural, aerodynamic, and inertial characteristics. In addition, the type of actuation system and actuation rate/speed can have a significant effect on the design of such controllers. The aerospace community is in strong need of such a critical review especially as morphing aircraft technologies move from fundamental research at a low Technology Readiness Level(TRL) to real-life applications. This critical review aims to identify research gaps and propose future directions. In this paper, research activities/papers are categorized according to the control strategy used. This ranges from simple Proportional Integral Derivative(PID) controllers at one end to complex robust adaptive controllers and deep learning algorithms at the other end. This includes analytical, computational, and experimental studies. In addition, the various dynamic models used and their fidelities are highlighted and discussed.

关键词： Control strategies Morphing aircraft Shape morphing Flight dynamics Aeroelasticity

Correcting distortions of thin-walled machined parts by machine hammer peening

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2024年第6期37卷 439-453页

作者： Aitor MADARIAGA Mikel CUESTA Gorka ORTIZ-DE-ZARATE Eneko SAENZ-DE-ARGANDONA Denis SORIANO michael B.PRIME Pedro Jose ARRAZOLA Department of Materials University of ManchesterOxford RoadManchester M139PLUnited Kingdom Mechanical and Industrial Production Department Faculty of EngineeringMondragon UnibertsitateaArrasate 20500Spain Los Alamos National Laboratory Los AlamosNew MexicoUSA

Thin-walled aerostructural components frequently get distorted after the machining *** to correct distortions or eventually rejecting parts significantly increases the *** paper proposes a new approach to correct distortions in thin-walled components by strategically applying hammer peening on target surfaces of a machined *** alloy 7475-T7351 was chosen for this *** study was divided in two ***,the residual stresses(RS)induced by four different pneumatic hammer peening conditions(modifying the stepover distance and initial offset)were characterised in a test coupon,and one of the conditions was selected for the next *** the second stage,a FEM model was used to predict distortions caused by machining in a representative ***,the RS induced by hammer peening were included in an FEM model to define two hammer peening strategies(varying the coverage area)to analyse the capability to reduce *** workpieces were machined and then treated with the simulated hammer peening strategies for experimental *** in the test coupon showed that pneumatic hammer peening can generate high compressive RS(-50 to350 MPa)up to 800 lm depth,with their magnitude increasing with a reduced stepover *** of hammer peening over 4% of the surface of the representative workpiece reduced the machininginduced distortions by 37%,and a coverage area of 100% led to and overcorrection by a factor of *** confirms that hammer peening can be strategically applied(in target areas and changing the percentage of coverage)to correct low or severe distortions.

关键词： Aeronautics Machining,Hammer Peening Aluminium alloy Distortions Residual Stress