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地铁暗挖工程不降水施工关键技术研究与应用

建筑技术 2024年第7期55卷 838-844页

作者：张志强韩静考孙青龙许昊韩瑞峰王林北京建工集团有限责任公司北京100055

在过去的50年,北京地铁暗挖工程主要以降水方案组织施工,使大量水资源流失。为保护地下水资源,北京连续出台了多项管控措施,对水资源进行了严格的限制和计量并征收水资源税。为响应北京市重大项目建设指挥部办公室提出的“在轨道交通工... 详细信息

在过去的50年,北京地铁暗挖工程主要以降水方案组织施工,使大量水资源流失。为保护地下水资源,北京连续出台了多项管控措施,对水资源进行了严格的限制和计量并征收水资源税。为响应北京市重大项目建设指挥部办公室提出的“在轨道交通工程建设中采用不降水(或少降水)施工,提高不降水(或少降水)施工技术水平”的要求。因此,开展暗挖工程不降水施工技术研究是必要和迫切的。本工程针对地铁暗挖工程不降水相关工法进行了深入广泛的调研,创新性地提出并实施了低净空下咬合桩施工技术和暗挖隧道机械化止水帷幕注浆施工技术,首次安全实现了地铁暗挖工程不降水施工,为后续不降水暗挖设计与施工提供参考。

关键词：不降水暗挖机械化止水帷幕注浆多功能注浆止水台车低净空下咬合桩塑性止水材料

Preparation and characterization of LiAl_xCo_yNi_(1-x-y)O_2 particles

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Particuology 2008年第4期6卷 252-257页

作者： Chen-Feng kao, kao-Heng Liu Department of Chemical Engineering, Cheng Kung University (NCKU), Tainan 70101, Taiwan, China Department of Chemical Engineering Cheng Kung University (NCKU) Tainan 70101 Taiwan China

Lithium-aluminum-cobalt-nickel oxide LiAlxCoyNi1xyO2 particles, generally used as cathode of lithium battery, were prepared by chemical coprecipitation from an aqueous solution of LiOH, Al(NO3)3, Co(NO3)2 and Ni(NO3)2 with NH4OH. XRD, SEM and FTIR were used to examine the effect of nickel content on the product. FTIR patterns showed that increase in nickel content decreased the absorption strength of the peak of spinel structure of the product, attributed to the occupation by nickel in the aluminum sites. Particle size and electrical properties of the lithium-aluminum-cobalt-nickel oxide (abbreviated as LACNO) particles were also determined.

关键词： LiAl_xCo_yNi_(1-x-y)O_2 Chemical coprecipitation Particle size Electrical properties

Cryptanalysis and improvement of controlled secure direct communication

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Chinese Physics B 2013年第6期22卷 203-205页

作者： kao Shih-Hung Hwang Tzonelih National Cheng Kung University Institute of Computer Science and Information Engineering

This paper points out that, due to a flaw in the sender＇s encoding, the receiver in Gao et al.＇s controlled quantum secret direct communication （CQSDC） protocol [Chin. Phys. 14 （2005）, No. 5, p. 893] can reveal ... 详细信息

关键词： quantum cryptography quantum communication

Soft tissue tuberculosis detected by next-generation sequencing:A case report and review of literature

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World Journal of Clinical Cases 2023年第3期11卷 709-718页

作者： Yan-Gai He Ya-Hui Huang Xiao-Lan Yi kao-Liang Qian Ying Wang Hui Cheng Jun Hu Yuan Liu Department of Infectious Diseases The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina Department of Orthopedics The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina

BACKGROUND Soft tissue tuberculosis is rare and insidious,with most patients presenting with a localized enlarged mass or swelling,which may be factors associated with delayed diagnosis and *** recent years,next-generation sequencing has rapidly evolved and has been successfully applied to numerous areas of basic and clinical research.A literature search revealed that the use of next-generation sequencing in the diagnosis of soft tissue tuberculosis has been rarely *** SUMMARY A 44-year-old man presented with recurrent swelling and ulcers on the left *** resonance imaging suggested a soft tissue *** lesion was surgically removed and tissue biopsy and culture were performed;however,no organism growth was ***,Mycobacterium tuberculosis was confirmed as the pathogen responsible for infection through next-generation sequencing analysis of the surgical *** patient received a standardized anti-tuberculosis treatment and showed clinical *** also performed a literature review on soft tissue tuberculosis using studies published in the past 10 *** This case highlights the importance of next-generation sequencing for the early diagnosis of soft tissue tuberculosis,which can provide guidance for clinical treatment and improve prognosis.

关键词： Mycobacterium tuberculosis Soft tissue infection Next-generation sequencing Extrapulmonary tuberculosis Diagnosis Case report

Experimental Investigation of Capacity Control Scheme on System Performance for a Machine Tool Cooler

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Chinese Journal of Mechanical Engineering 2011年第3期24卷 333-339页

作者： WANG fujen CHANG Tongbou kao Jianwei LEE Haochung Department of Refrigeration Air Conditioning and Energy Engineering Chin-Yi University of Technology Taiehung 411 Taiwan China Department of Mechanical Engineering Southern Taiwan University Tainan 710 Taiwan China Energy and Environment Research Laboratories Industrial Technology Research Institute Hsinchu 310 Taiwan China

Highly accurate manufacture in machining industry can only be obtained with precise temperature control of the coolant （oil or water）.Machine tool with more accurate,stable and advanced the precision of the working component cannot be developed without appropriate ***,the machine tool coolers are facing the control hunting of cooling temperature and the dramatic variation of heat load in high-accuracy *** main objective of this study is to evaluate the influence of the hot-gas by-pass scheme and suction regulation for capacity control of a machine tool cooler *** this study,experimental investigation on both hot-gas by-pass scheme and suction valve regulation for capacity control has been *** of using capillary tube and thermostatic expansion valve along with different capacity control scheme have been investigated extensively in an environmental testing *** performance and power consumption of the cooler system have been measured and analyzed as well by comparing with different opening percentage of throttling valve under specific coolant *** experimental results reveal that the power consumption will reduce slightly by capacity control using the hot-gas by-pass scheme but the coefficient of performance （COP） of the overall system will *** coolant temperature will result in higher compressor power consumption as *** conducting suction valve regulating for capacity control,energy-saving at 10%-12% can be obtained by using thermostatic expansion valve under different evaporator *** also reveals that suction valve regulation along with adequate choice of thermostatic expansion valve can provide alternative choice for steady capacity control and substantial *** proposed cooler systems with different capacity control schemes are not only more cost-effective than inverter driven system,but also can perform energy-saving and precise temperature control specific for high-accur

关键词： machine tool cooler hot-gas by-pas suction regulation capacity control

Biochemical Models for S-RNase-Based Self-Incompatibility

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Molecular Plant 2008年第4期1卷 575-585页

作者： Zhi-Hua Hua Allison Fields Teh-hui kao Intercollege Graduate Degree Program in Plant Biology The Pennsylvania State University University Park PA 16802 USA Department of Biochemistry and Molecular Biology The Pennsylvania State University University Park PA 16802 USA Present address: Department of Genetics University of Wisconsin Madison WI 53706 USA

S-RNase-based self-incompatibility （SI） is a genetically determined self/non-self-recognition process employed by many flowering plant species to prevent inbreeding and promote outcrosses. For the Plantaginaceae, Rosaceae and Solanaceae, it is now known that S-RNase and S-locus F-box （two multiple allelic genes at the S-locus） determine the female and male specificity, respectively, during SI interactions. However, how allelic products of these two genes interact inside pollen tubes to result in specific growth inhibition of self-pollen tubes remains to be investigated. Here, we review all the previously proposed biochemical models and discuss whether their predictions are consistent with all SI phenomena, including competitive interaction where SI breaks down in pollen that carries two different pollen S-alleles. We also discuss these models in light of the recent findings of compartmentalization of S-RNases in both incompatible and compatible pollen tubes. Lastly, we summarize the results from our recent biochemical studies of PiSLF （Petunia inflata SLF） and S-RNase, and present a new model for the biochemical mechanism of SI in the Solanaceae. The tenet of this model is that a PiSLF preferentially interacts with its non-self S-RNases in the cytoplasm of a pollen tube to result in the assembly of an E3-like complex, which then mediates ubiquitination and degradation of non-self S-RNases through the ubiquitin-26S proteasome pathway. This model can explain all SI phenomena and, at the same time, has raised new questions for further study.

关键词： S-RNase-based self-incompatibility (SI) Biochemical Models

Global Mittag-Leffler stability for fractional-order coupled systems on network without strong connectedness

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Science China(Information Sciences) 2020年第3期63卷 184-194页

作者： Xin MENG Yonggui kao Hamid Reza KARIMI Cunchen GAO School of Mathematical Sciences Ocean University of China Department of Mechanical Engineering Politecnico di Milano Department of Mathematics Harbin Institute of Technology (Weihai)

This study investigates the global Mittag-Leffler stability(MLS) problem of the equilibrium point for a new fractional-order coupled system(FOCS) on a network without strong connectedness. In particular, an integer-order coupled system is extended into the FOCS on a complex network without strong connectedness. Based on the theory of asymptotically autonomous systems and graph theory, sufficient conditions are derived to ensure the existence, uniqueness, and global MLS of the solutions of this FOCS on a network. Finally, a numerical example is provided to demonstrate the validity and potential of the proposed method for studying the MLS of FOCSs.

关键词： global Mittag-Leffler stability fractional-order coupled system connectedness

Genetic Tabu Search for the Multi-Objective Knapsack Problem

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Tsinghua Science and Technology 2003年第1期8卷 8-13页

作者： Vincent Barichard Jin-kao Hao LERIA Faculty of Sciences University of AngersLERIA Faculty of Sciences University of Angers 2 Boulevard Lavoisier 49045 Angers Cedex 01 France 2 Boulevard Lavoisier 49045 Angers Cedex 01 France

We introduce a hybrid algorithm for the 01 multidimensional multi-objective knapsack problem. This algorithm, called GTS MOKP, combines a genetic procedure and a tabu search operator. The algorithm is evaluated on 9 ... 详细信息

关键词： hybrid algorithm genetic tabu search search space

Responses of phytoplankton and its satellite bacteria to exogenous ethanol

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Journal of Oceanology and Limnology 2023年第1期41卷 203-214页

作者： Rediat ABATE Buce Hanoch HETHARUA Vishal PATIL Daner LIN Demeke KIFLE Junrong LIANG Changping CHEN Lin SUN Shuh-Ji kao Yonghong BI Bangqin HUANG Yahui GAO Key Laboratory of Algal Biology Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China School of Life Sciences Xiamen UniversityXiamen 361102China Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem College of Environment&EcologyXiamen UniversityXiamen 361102China State Key Laboratory of Marine Environmental Sciences Xiamen UniversityXiamen 361101China Department of Zoological Sciences Addis Ababa UniversityAddis AbabaPO Box 1176Ethiopia

The response of phytoplankton and its satellite bacteria to various concentrations(0.01%-10%v/v)of ethanol is *** elucidate the effect of ethanol,single-strains of phytoplankton(SSP)culture,pure strains of satellite bacteria isolated from nonaxenic SSP cultures,and Escherichia coli were *** indicate that ethanol could promote the growth and photo synthetic efficiency(F_(v)/F_(m))of S SP at 0.01%and the growth of satellite bacteria at 0.01%-1%.Nevertheless,ethanol inhibited the growth and F_(v)/F_(m)of SSP at 0.1%-1%,and killed bacteria and SSP at 10% *** investigation on a satellite bacterium(Mameliella alba)revealed that ethanol promotes growth by serving as a growth stimulant rather than a metabolic carbon *** 16 S rRNA gene amplicon indicated that all nonaxenic S SP cultures harbor distinct satellite bacteria communities where the SSP culture of Skeletonema costatum,Phaeodactylum tricornutum,and Dunaliella bardawil were dominated by bacteria genera of Marivita(~80%),Dinoroseobacter(~47%),and Halomonas(~87%),respectively,indicating that every SSP cultures have their own distinct satellite bacterial *** bacteria family Rhodobacteraceae was dominant in the two marine diatoms,whereas Halomonadaceae was dominant in the saline green *** to their respective controls,the supply of 0.5% ethanol to SSP cultures promoted the growth of the satellite bacteria but did not cause a significant difference in species composition of satellite ***,a low concentration of ethanol can promote the growth of bacteria in a non-selective *** study enriched our knowledge about the effect of ethanol on aquatic microbes and provided a baseline for basic and applied biotechnological re search in the aquatic environment in the future.

关键词： aquatic microbes bacteria diversity ethanol effect growth inhibition growth stimulation