检索结果-南通市图书馆

Chinese Journal of Cancer 2011年第2期30卷 85-95页

作者： David Turnbull Victorian Eco-innovation Lab (VEIL) Architecture Faculty University of Melbourne

Bacteria,pigs,rats,pots,plants,words,bones,stones,earrings,diseases,and genetic indicators of all varieties are markers and proxies for the complexity of interweaving trails and stories integral to understanding human movement and knowledge assemblage in Southeast Asia and around the *** human movement and knowledge assemblage is central to comprehending the genetic basis of disease,especially of a cancer like nasopharyngeal *** problem is that the markers and trails,taken in isolation,do not all tell the same *** movement and knowledge assemblage are in constant interaction in an adaptive process of co-production with genes,terrain,climate,sea level changes,kinship relations,diet,materials,food and transport technologies,social and cognitive technologies,and knowledge strategies and *** carcinoma is the outcome of an adaptive process involving physical,social,and genetic components.

关键词：知识传播人体运动遗传标记运输技术鼻咽癌社会代理创新

Robust adaptive repetitive control for unknown linear systems with odd-harmonic periodic disturbances

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2022年第12期65卷 186-203页

作者： Edi KURNIAWAN Hendra G.HARNO Hai WANG Jalu A.PRAKOSA Bernadus H.SIRENDEN Harry SEPTANTO Hendra ADINANTA Akif RAHMATILLAH Research Center for Photonics National Research and Innovation Agency faculty of Science and Technology Sanata Dharma University Discipline of Engineering and Energy Murdoch University Research Center for Electronics National Research and Innovation Agency 5. Research Center for Smart Mechatronics National Research and Innovation Agency 6. Research Center for Hydrodynamics Technology National Research and Innovation Agency faculty of Science and Technology Airlangga University

This article presents a novel tracking control strategy for unknown linear systems perturbed by odd-harmonic periodic disturbances that combine adaptive and repetitive control methods. The proposed control strategy results in a robust adaptive odd-harmonic repetitive controller(RA-OHRC). Direct adaptive control with a robust adaptation law is utilized to accurately track the desired trajectory, ensuring the boundedness and convergence of the tracking error. An internal-model-based repetitive controller is added to compensate for periodic disturbances with odd-harmonic components. The boundedness and the convergence of the tracking error are verified through the Lyapunov-based stability analysis. The effectiveness of the proposed RA-OHRC scheme can be demonstrated using the simulation studies involving a servomotor model,which achieves accurate reference tracking, excellent disturbance rejection capability, and robustness against uncertainties.

关键词： repetitive control direct adaptive control odd-harmonic frequencies periodic disturbances unknown linear systems

同方期刊数据库

Development of high volume rice husk ash alumino silicate composites

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2010年第5期17卷 654-659页

作者： Ubolluk Rattanasak Prinya Chindaprasirt Prasert Suwanvitaya Department of Chemistry and Center for innovation in Chemistry Faculty of Sciences Burapha University Department of Civil Engineering Faculty of Engineering Khon Kaen University Department of Civil Engineering Faculty of Engineering Kasetsart University

The development of high volume rice husk ash （RHA） alumino silicate composites （ASC） was studied. RHA was used as the source of silica and aluminium in the ASC. The mass ratios of RHA：Al（OH）3 of 70：30 to 99：1 were tested. The results indicate that the obtained ASC mortars are not stable and disintegrate in water. Boric acid was introduced to the mixture to overcome this problem. Stable ASC mortars with high RHA：Al（OH）3 mass ratios of 90：10 to 97.5：2.5 were obtained with the use of boric acid and 115oC curing. The compressive strength of the mortar of 20 MPa was gained. The immersion test indicates that high volume RHA ASC mortars show good resistance in 3vol% H2SO4 solution, but is slightly less durable in 5wt% MgSO4 solution.

关键词： composite materials rice husk ash aluminium hydroxide boric acid alumino silicates sulphate attack

Deposition processes and properties of coatings on steel fasteners——A review

在线全文

学校读者我要写书评

暂无评论

Friction 2019年第5期7卷 389-416页

作者： Ping Ping CHUNG James WANG Yvonne DURANDET Department of Mechanical and Product design Engineering Faculty of Science Engineering and Technology Swinburne University of Technology

Mechanical fastening is widely used in joining metals, particularly in automotive, aerospace, building and construction industries. However, the main concern on mechanical fastening is the issue of corrosion. An effective way to prolong the service life of steel fasteners is to apply protective coatings onto these components. This paper reviews and compares a few common coating deposition techniques, i.e., electroplating, hot-dip galvanizing, ion vapour deposition and mechanical plating, in terms of their characteristics. Compositional and microstructural properties including morphology and porosity, corrosion resistance performance and frictional performance of the coatings formed by each process are discussed in details. Hydrogen embrittlement, a premature failure often occurred on high strength steel fasteners, is also reviewed. The key results of recent studies of various metallic coatings on fasteners are presented to provide a fundamental understanding of the evolving topics, and the research gaps have been identified for further investigation.

关键词： zinc coating steel fasteners frictional characteristics corrosion performance mechanical plating electroplating

Discussion on Road Traffic Problems and “Public Transport Priority” Policy in the Macao Peninsula

在线全文

学校读者我要写书评

暂无评论

World Journal of Engineering and Technology 2020年第4期8卷 631-641页

作者： Ziwei Huang faculty of innovation and design The City University of Macao Macao China

The roads on the Macao Peninsula are famous for their short, fast, and small features. At the same time, due to the protection of historical and cultural sites, the road network system is mostly based on the planning and design of the previous road network system. Although the planning of the contemporary road network system is quite unique, it has not been considered to the contemporary transporting needs of the citizens of Macao. At the same time, the complexity of the road network makes zonings unobvious functional and mixes urban functions in the region. Therefore, through field surveys, the relevant data of the Macao Transport Bureau (DSAT) is combined to find out the current problems of the road traffic on the Macao Peninsula and analyze the strategy of optimizing the “public transport priority” public transportation prove system. At Last, regarding the citizen as the core and find out the relationship between passengers and the public transportation system to explore the future development direction of the road traffic planning and design of the Macao Peninsula will become the main direction of this study.

关键词： The Macao Peninsula Road Traffic Public Transport Priority Government Policy

Research on the Status Quo of Waterfront Space Construction on the Macao Peninsula

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

Journal of Building Construction and Planning Research 2021年第4期9卷 292-312页

作者： Yiyang Li Luyang Tao Yichen Feng faculty of innovation and design City University of Macao Macao China

Waterfront space is an important part of waterfront cities, and it carries the functions of ecological protection, tourism and urban landscape. As a city built on an island, Macao has abundant waterfront space. However, due to the geographical location, cultural and historical reasons, the waterfront space of Macao has a development gap in the use of urban waterfront space. The internal reasons for the differences in the waterfront space construction in which regions of the island are more perfect are the issues to be studied in this article. It is hoped that through the study of the current situation of Macao’s local waterfront space infrastructure construction, the main points that affect advanced cases will be sorted out. From the location, industry, and infrastructure, find out its enlightenment to other waterfront spaces in Macao that are relatively backward in construction.

关键词： Macao Waterfront Space Infrastructure

Stereocomplexation and Mechanical Properties of Polylactide-bpoly(propylene glycol)-b-polylactide Blend Films: Effects of Polylactide Block Length and Blend Ratio

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

Chinese Journal of Polymer Science 2017年第11期35卷 1391-1401页

作者： Dutchanee Pholharn Onanong Cheerarot Yodthong Baimark Biodegradable Polymers Research Unit Department of Chemistry and Center of Excellence for Innovation in ChemistryFaculty of Science Mahasarakham University

In the present work, poly（propylene glycol）（PPG） was block copolymerized to form polylactide-poly（propylene glycol）-polylactide （PL-PPG-PL） triblock copolymers for preparing flexible stereocomplex PL （scPL） blend films. The scPL blend films were prepared by solution blending of poly（L-lactide）-PPG-poly（L-lactide）（PLL-PPG-PLL） and poly（D-lactide）- PPG-poly（D-lactide）（PDL-PPG-PDL） triblock copolymers before film casting. The influences of PL end-block lengths （2 ×10^4 and 4×10^4 g/tool） and blend ratios （75/25, 50/50 and 25/75 W/W） on the stereocomplexation and mechanical properties of the blend films were evaluated. From DSC and WAXD results, the 50/50 blend films had complete stereocomplexation. Phase separation between the scPL and PPG phases was not observed from their SEM images. The tensile stress and elongation at break increased with the sterecomplex crystallinities and PL end-block lengths. The PPG middle-blocks enhanced elongation at break of the scPL films. The results showed that the PL-PPG-PL triblock structures did not affect stereocomplexation of the PLL/PDL block blending. In conclusion, the phase compatibility and flexibility of the scPL films were improved by PPG block copolymerization.

关键词： Stereocomplex Polylactide Poly(propylene glycol) Block copolymers Mechanical properties

Characterization of MnWO_4 with flower-like clusters produced using spray pyrolysis

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 2009年第B9期19卷 100-104页

作者： Somchai THONGTEM Surangkana WANNAPOP Titipun THONGTEM Department of Physics and Materials Science Faculty of ScienceChiang Mai University Department of Chemistry and Center for innovation in Chemistry Faculty of ScienceChiang Mai University

MnWO4 (huebnerite) with flower-like clusters of nano-plates was produced from the solutions containing MnCl2·4H2O and Na2WO4·2H2O by the 300 ℃ spray pyrolysis. The phase was detected by X-ray diffraction (XRD) and selected area electron diffraction (SAED), and is in accordance with the results characterized using energy dispersive X-ray (EDX) analysis. The flower-like clusters of nano-plates were characterized using scanning and transmission electron microscopes (SEM and TEM), and their parallel lattice planes using a high resolution transmission electron microscope (HRTEM). Vibration spectra of the huebnerite structured products were characterized using Raman and Fourier transform infrared (FTIR) spectrometers. Their photoluminescence (PL) emissions are in the same spectral region at 405-412 nm.

关键词：喷雾热分解高分辨透射电子显微镜表征产品集群傅立叶变换红外光谱 X射线衍射选区电子衍射

Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon(C. melo) by fruit heating

在线全文

学校读者我要写书评

暂无评论

Horticultural Plant Journal 2022年第2期8卷 215-220页

作者： Yuichi Matsumoto Mako Tsunamoto Center for Education and Research in Agricultural innovation Faculty of AgricultureSaga UniversitySaga 8470021Japan

Wild species of the genus Cucumis, such as C. anguria, are resistant to various melon(C. melo) diseases such as Fusarium wilt race 1.2 and are anticipated as genetic resources of melon. However, in the interspecific crosses between C. anguria and melon, the abortion of the embryos was observed in the early growth stage and could not be regenerated even when cultured. Therefore, for embryo rescue, it is necessary to promote embryo growth during abortion occurrence. This study investigated the effects of fruit heating on embryo growth in interspecific hybrids of C. anguria and melon. In the heating device, the minimum night temperature around the fruit was maintained above 21.5 °C. The ovule grain area of C. anguria × MR-1 with fruit heating was significantly enlarged compared to that without fruit-heating. It was also significantly enlarged compared with the ovule grain area of C. anguria self-pollination. Although, in C. anguria × MR-1 without fruit-heating, no embryo was observed until 10 days after pollination(DAP), and pre-embryos were observed at 13 DAP. Conversely, in C. anguria × MR-1 with fruit-heating, pre-embryos were even observed at 10 DAP. These results suggest that the possibility of embryo or ovule culture regeneration has increased due to embryo growth promotion.

关键词： Cucumis anguria L. Interspecific cross Melon Night temperature Ovule area

Silica gel-assisted solvothermal production of CdS,Cu_xS (x=1,2) and ZnS with different morphologies

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 2009年第B9期19卷 105-109页

作者： Titipun THONGTEM Chalermchai PILAPONG Somchai THONGTEM Department of Chemistry and Center for innovation in Chemistry Faculty of ScienceChiang Mai University Department of Physics and Materials Science Faculty of ScienceChiang Mai University

CdS, CuxS (x=1, 2) and ZnS with different morphologies were produced by the solvothermal reactions of M(CH3COO)2·2H2O (M=Cd, Cu and Zn) and NH2CSNH2 in hexane with and without silica gel as a hard template at 200 ℃ for 24 h. The product phases were detected using X-ray diffraction (XRD). Different morphologies were characterized using a scanning electron microscope (SEM). The existence of silica gel in modeling morphologies of the sulfides was characterized using Fourier transform infrared (FTIR) spectrometer. Raman spectra of different products show the vibrations at the same wavenumbers, although they are composed of different morphologies. Photoluminescence (PL) emissions of the corresponding phases with different morphologies are at the same values, but their intensities are increased by template adding.

关键词：硫化锌溶剂热形貌硅胶 CdS 傅里叶变换红外光谱硫化物形态扫描电子显微镜