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mechanical Property and Microstructure of Cement Mortar with Carbonated Recycled Powder

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Journal of Wuhan university of Technology(Materials Science) 2024年第3期39卷 689-697页

作者：丁亚红张美香 YANG Xiaolin XU Ping SUN Bo guo shuqi Department of Civil eng.neering Henan Polytechnic UniversityJiaozuo 454150China College of Architectural eng.neering Xinyu UniversityXinyu 336500China

Carbonated recycled powder as cementitious auxiliary material can reduce carbon emissions and realize high-quality recycling of recycled *** this paper,microscopic property of recycled powder with three carbonation methods was tested through XRD and SEM,the mechanical property and microstructure of recycled powder mortar with three replacement rates were studied by ISO method and SEM,and the strengthening mechanism was *** results showed that the mechanical property of recycled powder mortar decreased with the increasing of replacement *** is suggested that the replacement rate of recycled powder should not exceed 20%.The strength index and activity index of carbonated recycled powder mortar were improved,in which the flexural strength was increased by 27.85%and compressive strength was increased by 20%at the *** powder can be quickly and completely carbonated,and the improvement effect of CH pre-soaking carbonation was the *** activity index of carbonated recycled powder can meet the requirements of Grade II technical standard for recycled *** results revealed the activation mechanism of carbonated recycled powder such as surplus calcium source effect,alkaline polycondensation effect and carbonation enhancement effect.

关键词： recycled powder carbonation activation compound carbonation activity index mechanical property microstructure

Biology of Hippo signaling pathway:Skeletal muscle development and beyond

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Journal of Integrative Agriculture 2024年第6期23卷 1825-1838页

作者： shuqi Qin Chaocheng Li Haiyan Lu Yulong Feng Tao guo Yusong Han Yongsheng Zhang Zhonglin Tang Xinjiang Characteristic Livestock Breeding and Reproduction Team College of Animal Science and TechnologyShihezi UniversityShihezi 832003China Lanzhou Veterinary Research Institute Chinese Academy of Agricultural SciencesLanzhou 730046China Kunpeng Institute of Modern Agriculture at Foshan Foshan 528226China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518124China

Global demand for farm animals and their meat products i.e.,pork,chicken and other livestock meat,is steadily *** the ongoing life science research and the rapid development of biotechnology,it is a great opportunity to develop advanced molecular breeding markers to efficiently improve animal meat production *** is an important study subject because of its crucial role in the regulation of organ *** recent years,with the increase of research on Hippo signaling pathway,the integrative application of multi-omics technologies such as genomics,transcriptomics,proteomics,and metabolomics can help promote the in-depth involvement of Hippo signaling pathway in skeletal muscle development *** Hippo signaling pathway plays a key role in many biological events,including cell division,cell migration,cell proliferation,cell differentiation,cell apoptosis,as well as cell adhesion,cell polarity,homeostasis,maintenance of the face of mechanical overload,*** influence on the development of skeletal muscle has important research value for enhancing the efficiency of animal husbandry *** this study,we traced the origin of the Hippo pathway,comprehensively sorted out all the functional factors found in the pathway,deeply analyzed the molecular mechanism of its function,and classified it from a novel perspective based on its main functional domain and mode of *** aim is to systematically explore its regulatory role throughout skeletal muscle *** specifically focus on the Hippo signaling pathway in embryonic stem cell development,muscle satellite cell fate determination,myogenesis,skeletal muscle meat production and organ size regulation,muscle hypertrophy and atrophy,muscle fiber formation and its transformation between different types,and *** roles in proliferation and regeneration are methodically summarized and analyzed *** summary and prospect of the Hippo signaling pathway within this a

关键词： Hippo skeletal muscle organ size myogenesis C2C12 livestock animals

Longitudinal waves in one dimensional non-uniform waveguides

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Theoretical & Applied Mechanics Letters 2011年第2期1卷 33-36页

作者： shuqi guo,~(1,a) Zhi Zhang,~2 and Shaopu Yang~3 1)Department of Mechanics,shijiazhuang tiedao university,shijiazhuang 050043,china. 2)school of Civil eng.neering,shijiazhuang tiedao university,shijiazhuang 050043,china 3)school of mechanical eng.neering,shijiazhuang tiedao university,shijiazhuang 050043,china shijiazhuang tiedao Univ Dept Mech Shijiazhuang 050043 Hebei Peoples R China shijiazhuang tiedao Univ Sch Civil Engn Shijiazhuang 050043 Hebei Peoples R China shijiazhuang tiedao Univ Sch Mech Engn Shijiazhuang 050043 Hebei Peoples R China

Wave approach is used to analyze the longitudinal wave motion in one dimensional non-uniform *** assumptions of constant wave velocity and no wave conversion,there exist four types of non-uniform rods and corresponding traveling wave solutions are *** obtained results indicate that the kinetic energy is preserved as a constant and the wave amplitude is inversely proportional to square root of the cross-sectional area of the *** certain condition,there exists a cut-off frequency for the rod with variation in geometric or material properties,below which waves do not propagate along the non-uniform *** the rod with arbitrary variable cross-section, the conclusions are similar if the wave frequency is high *** a series solution of the wave motion is presented.

关键词： longitudinal wave traveling solution cut-off frequency non-uniform rod

Refractive index sensing based on a twisted nano-kirigami metasurface

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Photonics Research 2024年第2期12卷 218-225页

作者： shuqi QIAO XIAOCHEN ZHANG QINGHUA LIANG YANG WANG CHANG-YIN JI XIAOWEI LI LAN JIANG SHUAI Feng HONGLIAN guo JIAFANG LI school of Science Minzu University of ChinaBeijing 100081China Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(Ministry of Education) Beijing Key Laboratory of Nanophotonics&Ultrafine Optoelectronic Systemsand School of PhysicsBeijing Institute of TechnologyBeijing 100081China Laser Micro/Nano Fabrication Laboratory School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081China

Plasmonic sensing technology has attracted considerable attention for high sensitivity due to the ability to effectively localize and manipulate *** this study,we demonstrate a refractive index(RI)sensing scheme based on open-loop twisted meta-molecule arrays using the versatile nano-kirigami *** sensing has the features of a small footprint,flexible control,and simple *** eng.neering the morphology of meta-molecules or the RI of the ambient medium,the chiral surface lattice resonances can be significantly enhanced,and the wavelength,intensity,and sign of circular dichroism(CD)can be flexibly *** the relation between the wavelength of the CD peak and the RI of the superstrate,the RI sensor achieves a sensitivity of 1133 nm/***,we analyze these chiroptical responses by performing electromagnetic multipolar decomposition and electric field *** study may serve as an ideal platform for applications of RI measurement and provide new insights into the manipulation of chiral light–matter interactions.

关键词： twisted chiral index

Two-stop-two-slip motions of a dry friction oscillator

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中国科学:技术科学 2010年第2期 209-209页

This paper presents the investigation on the two-stop-two-slip (TSTS) motions in a dry friction oscillator. Friction is a kind of dissipated force. Simple dry friction oscillator implies complicated stick-slip motions. Due to its nonlinear non-smooth characters, it is difficult to analyze the stick-slip motions. First, TSTS motion is analyzed in this paper. A closed form solution of the TSTS motions is presented. In addition, parameter domain for the motion is studied. In general, there are no explicit solutions to transcendental equation in the closed form solution. However, explicit solutions are possible for special cases. Moreover, Poincare map is structured to analyze the stability of the motions.

关键词： dry friction non-smooth dynamics stick-slip motion

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高速机车主动控制受电弓研究

铁道学报 2004年第4期26卷 41-45页

作者：郭京波杨绍普高国生北京交通大学机电工程学院北京100044 石家庄铁道学院机械工程分院河北石家庄050043

受电弓与接触网之间的振动问题,一直是制约电力机车提速的关键之一。本文对2种类型接触网的刚度进行了非线性最小二乘曲线拟合,并给出了统一的拟合公式,建立了3自由度弓网系统模型,采用最优控制策略,对不同运行速度下弓网间接触力进行... 详细信息

受电弓与接触网之间的振动问题,一直是制约电力机车提速的关键之一。本文对2种类型接触网的刚度进行了非线性最小二乘曲线拟合,并给出了统一的拟合公式,建立了3自由度弓网系统模型,采用最优控制策略,对不同运行速度下弓网间接触力进行主动控制。仿真结果表明,采用主动控制受电弓可以有效地抑制接触力的波动,控制效果较好。

关键词：受电弓接触网高速列车主动控制

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施工机械与车辆柴油机排放控制研究

同济大学学报（自然科学版） 2001年第12期29卷 1425-1428页

作者：赵金生吴利军祖炳洁冯国胜石家庄铁道学院机械工程分院河北石家庄050043

针对柴油机的有害气体排放 ,尝试着用排放后处理措施及燃油乳化等化学方法进行控制 ,并在 6 110A型柴油机上进行了台架试验 ,试验结果显示 ,NOx 等有害气体均有一定程度的降低 .

关键词：柴油机有害气体乳化燃料施工机械排放控制车辆

Longitudinal vibrations of arbitrary non-uniform rods

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Acta Mechanica Solida Sinica 2015年第2期28卷 187-199页

作者： shuqi guo Shaopu Yang Department of eng.neering Mechanics Shijiazhuang Tiedao University school of mechanical eng.neering Shijiazhuang Tiedao University

Free and steady-state forced longitudinal vibrations of non-uniform rods are investi- gated by an iteration method, which results in a series solution. The series obtained are convergent and linearly independent. Its convergence is verified by convergence tests, its linear independence confirmed by the nonzero value of the corresponding Wronski determinant. Then, the solution obtained is an exact one reducible to a classical solution for the case of uniform rods. In order to verify the method, two examples are presented as an application of the proposed method. The results obtained are equivalent to the method in literature. In contrast to the proposed method ca- pable of dealing with arbitrary non-uniform rods in principle, the method in literature is confined to work on special cases.

关键词： longitudinal vibration arbitrary non-uniform rod series solution convergence

The Research and Practice of Creative Construction Design in Graphics Courses Teaching

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The Research and Practice of Creative Construction Design in...