检索结果-南通市图书馆

Journal of Systems Science and Systems Engineering 2020年第5期29卷 590-608页

作者： c.k.M.LEE W.c.TAI kam k.H.NG Department of Industrial and Systems Engineering The Hon g Kong Polytechnic UniversityHung HornHong Kong SARChina School of Mechanical and Aerospace Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore

The current healthcare system in Hong kong is experiencing pressure due to constrained resources,with dramatic increases in inpatient services queue lengths,dissatisfaction with the working environment,unacceptable workforce arrangements and high turnover rate of hospital *** maintain the robustness of the healthcare system and a sustainable inpatients flow,the Food and Health Bureau launched a public-private partnership programme to utilise the resources of the public and private *** research investigates the potential for extension of the programme and further enhancing the sustainability of the long-term inpatient services under a mixed public-private healthcare policy via system dynamic *** findings show that an increase of human resources in public hospitals does not substantially improve inpatient flow rate ***,the results from the system dynamic approach provide insights into the expansion of the service areas of the programme and suggest increasing the number of referrals to private hospitals.

关键词： System dynamic models scenario analysis inpatient transferral mixed public-private healthcare system

Generalized passivity-based chaos synchronization

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2010年第8期31卷 1009-1018页

作者： c.k.AHN Faculty of the Division of Electronics and control Engineering Wonkwang University

In this paper, a new passivity-based synchronization method for a general class of chaotic systems is proposed. Based on the Lyapunov theory and the linear matrix inequality （LMI） approach, the passivity-based controller is presented to make the synchronization error system not only passive but also asymptotically stable. The proposed controller can be obtained by solving a convex optimization problem represented by the LMI. Simulation studies for the Genesio-Tesi chaotic system and the Qi chaotic system are presented to demonstrate the effectiveness of the proposed scheme.

关键词： passivity-based synchronization linear matrix inequality (LMI) chaotic systems Lyapunov theory

在线全文

学校读者我要写书评

暂无评论

后苏联空间

俄罗斯东欧中亚研究 2006年第2期 91-94页

作者： k.c.哈吉耶夫[俄] 常玢（译）

在俄罗斯对外政策中，独联体各国家，也就是人们习惯上称之为俄罗斯近邻的原苏联各加盟共和国是其优先考虑的地缘政治方向。后苏联空间在经济、国防和民族安全等重要领域形成一个特殊的范围。这个空间正面临对生产核武器、生化武器、制... 详细信息

在俄罗斯对外政策中，独联体各国家，也就是人们习惯上称之为俄罗斯近邻的原苏联各加盟共和国是其优先考虑的地缘政治方向。后苏联空间在经济、国防和民族安全等重要领域形成一个特殊的范围。这个空间正面临对生产核武器、生化武器、制造工业、基因和生态危机有用的原料和工艺的严重流失。毫不夸张地说，俄罗斯的前途在许多方面取决于它在这一空间的作用、地位及其对这一空间影响的性质和程度。

关键词：原苏联俄罗斯对外政策政治方向生化武器制造工业生态危机空间影响独联体核武器

9p亚端粒微小缺失是致病性突变还是正常遗传变异?(英文)

在线全文

学校读者我要写书评

暂无评论

北京大学学报（医学版） 2006年第1期38卷 92-93页

作者： c. TEcHAkITTIROJ k.c. kIM1 H. ANDERSSON Marilyn M. LI Human Genetics Program Hayward Genetics Center Human Genetics Program Hayward Genetics CenterDepartment of Pediatrics Tulane University Health Science Center 1430 Tulane Avenue New Orleans LA 70112 USA Human Genetics Program Hayward Genetics CenterDepartment of Pediatrics Tulane University Health Science Center 1430 Tulane Avenue New Orleans LA 70112 USAPeking University Center of Medical Genetics Beijing 100083 China

We report an apparently benign familial 9p subtelomere deletion identified using chromosome-arm-specific subtelomere probes in a patient with multiple congenital anomalies. Our experience demonstrated that the discovery of a subtelomeric deletion and/or duplication does not always guarantee the identification of the etiology for the patient’s phenotype and a positive finding with subtelomere probes should always be followed by parental study with the same probe in order to distinguish a disease causing alteration from a benign familial polymorphism.

关键词：染色体缺失原位杂交荧光畸形突变变异遗传学 9p亚端粒微小缺失致病性突变

Autodesk Inventor 9 : an introduction

在线全文

学校读者我要写书评

暂无评论

2004年

作者： Ron k.c. cheng.

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

如何增进你的人际关系

如何增进你的人际关系

On the complementarity of Absorption and McD Spectroscopy

1983年

作者： k.c.英格兰姆新光书店编

来源：汇雅图书（南通市图书馆... 评论

在线全文

汇雅图书（南通市图书馆）

学校读者我要写书评

暂无评论

Journal of Rare Earths 1998年第3期16卷 45-51页

作者： Binnemans, k. Gorller-Walrand, c Univ of Leaven Heverlee Belgium

The use of magnetic circular dichroism(McD) spectroscopy for probing the 4f n configuration of trivalent lanthanide ions is explored. The technique is compared with optical absorption spectroscopy. McD is valuable for the detection of degenerate crystal field levels in uniaxial crystals and for observing transitions not resolved in the absorption sepctrum, for the study of the site symmetry and for checking the reliability of crystal field and intensity parameters. On the other hand, selection of the samples has to be done more carefully than for absorption spectroscopy, because an McD spectrum can only be recorded in an isotropic direction.

关键词： Rare earths Lanthanides Magnetic circular dichroism Zeeman effect Optical absorption

Role of Ag microalloying on glass forming ability and crystallization kinetics of ZrcoAgAlNi amorphous alloy

在线全文

学校读者我要写书评

暂无评论

chinese Physics B 2021年第1期30卷 471-476页

作者： A Surendar k Geetha c Rajan M Alaazim Department of Pharmacology Saveetha Dental College and HospitalSaveetha Institute of Medical and Technical SciencesChennaiIndia cSE Excel Engineering CollegePallakapalayamKomarapalayam637303India IT K S Rangasamy College of Technology TiruchengodeNamakkalTamil Nadu 637215India Faculty of Engineering Universitas Muhammadiyah Surakarta(UMS)Indonesia

Bulk metallic glasses(BMGs) with new chemical compositions(ZrcoAgAlNi) were fabricated and the effects of Ag minor addition on the glass forming ability(GFA) and crystallization kinetics were studied. The x-ray diffraction(XRD) test was applied to identify the amorphousness of BMGs or possible crystalline phases. Using differential scanning calorimeter(DSc), the thermal stability and crystallization kinetics under a non-isothermal condition at the different heating rates were studied. considering the heating rate dependency of glass transition and crystallization kinetics, the activation energy was evaluated and measured for the mentioned processes. It was revealed that the rise in Ag content led to the decrease in activation energy for glass transition, while the activation energy for crystallization increased. The thermal stability and GFA were also studied and it was found that the Ag addition strongly affected the inherent features of BMGs. With the increase in Ag content, the atomic mobility and structural rearrangement changed in the material and consequently, the GFA and thermal stability were significantly improved.

关键词： bulk metallic glass materials design crystallization kinetics glass forming ability

Grain refinement in low SFE and particle-containing nickel aluminium bronze during severe plastic deformation at elevated temperatures

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2021年第23期82卷 57-68页

作者： c.J.Barr k.Xia Department of Mechanical Engineering University of MelbourneVictoria3010Australia DMTc Ltd. 24 Wakefield St.HawthornVIC3122Australia

The influence of particle size and morphology on grain refinement in low stacking fault energy(SFE)alloys was studied by comparing the grain structures in single-and multi-phase Al-bronze(AB)alloys following equal channel angular pressing(EcAP)between 350 and 500℃.In particular,nickel aluminium bronze(NAB)was chosen as it contained both coarse and fine rounded particles,as well as a lamellar phase which evolved during *** refinement in the single-phase alloy was achieved through dynamic recrystallisation initiated at deformed twin *** contrast,different mechanisms were observed in the particle-containing *** around the coarseκⅡparticles(~5μm)was promoted through particle stimulated nucleation(PSN),whereas recrystallisation in the region of the fineκⅣ(~0.4μm)was delayed due to the activation of secondary *** refinement in areas of the lamellarκⅢshowed significant variation,depending on the lamellar orientation relative to the shear plane of *** the lamellae deformed,numerous high angle grain boundaries were generated between fragments and served as nucleation sites for recrystallisation,while PSN occurred around spheroidised *** spreading of theκⅢparticles by EcAP then enhanced the total area of recrystallised grains.

关键词： Equal channel angular pressing copper alloys Grain refinement Stacking fault energy Severe plastic deformation

Green indoor optical wireless communication systems:Pathway towards pervasive deployment

在线全文

学校读者我要写书评

暂无评论

Digital communications and Networks 2021年第3期7卷 410-444页

作者： c.Jenila R.k.Jeyachitra Department of Electronics and communication Engineering National Institute of TechnologyTiruchirappalli620015India

The Optical Wireless communication(OWc)offers the high capacity of optical fiber communication with the flexibility of wireless *** it works in the optical region of the ElectroMagnetic(EM)spectrum,it guarantees safety and security which are critical in radio and microwave frequency *** principal objective of this paper is to analyze the indoor OWc systems on these guaranteed features,and safety and security are jointly denoted by the term *** high obstacle impermeability of optical signals and their directivity strengthen the security of indoor OWc data *** confidentiality and authenticity of optical wireless data can also be preserved with the Quantum key Distribution(QkD).This paper provides a technological overview and a review of literature about the OWc system that helps to identify the challenges in the path of a ubiquitous deployment of green wireless communication *** advancements in the sources and detectors are discussed together with the coding,modulation and multiplexing techniques for making highly robust OWc *** ubiquitous deployment of green OWc necessitates the development of optical transmitters and receivers,performance enhancement techniques,incorporation of uplink and energy harvesting abilities,and safety and security enhancement ***,a special emphasis is placed on these aspects and their challenges towards the green ***,the paper explores some significant indoor applications based on the OWc that have great impacts on the Next Generation Networks(NGN)and the Internet of Things(IoT).

关键词： Data rate Energy efficiency Green communication Infrared communication Optical wireless communication Visible light communication