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Cities Harbor the “Floating Population”

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China Today 2010年第10期59卷 21-23页

作者： hou RUILI staff reporter

THEY may love or hate it, approve its promise and generosity or resent its prejudice and miserliness, but migrant workers don’t hesitate to throw themselves into the embrace of the city; their longing to fall into

关键词：海港城市流动人口农民工

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SEEING THE UNSEEN

China Report ASEAN 2019年第8期4卷 28-29页

作者： hou Weili 不详

Humans around the world have been sharing common aspirations to learn about the mysterious moon throughout history. In Greek mythology, Selene was the goddess of the moon, reputed to drive a chariot across heaven. And... 详细信息

关键词： world learn about mysterious moon

A non-contact flexible pyroelectric sensor for wireless physiological monitoring system

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Science China(Information Sciences) 2022年第2期65卷 162-172页

作者： Jian HE Sen LI Xiaojuan hou Yongjun Zhou Hao LI Min CUI Tao GUO Xiangdong WANG Jiliang MU Wenping GENG Xiujian Chou Science and Technology on Electronic Test and Measurement Laboratory North University of China Science and Technology on Near-Surface Detection Laboratory China Institute of Sport Science

Recently, human physiological information wireless monitoring in real-time is particularly important in health analysis. As a solution, a non-contact wireless physiological monitoring system based on pyroelectric generator(Py G), whose core part consists of a wireless circuit processing module and a polyvinylidene fluoride(PVDF) film, has been successfully designed. Owing to the temperature change under the stimulation of an external heat source, the output voltage of the Py G self-powered flexible sensor increases with the heat source temperature variation in the range of 295–355 K. Furthermore, based on the natural temperature oscillation between the living body and surrounding environment, the sensor can realize human physiological information assessment, for example, temperature monitoring of the palms, fingers, respiratory heat signals from mouth or nose or non-contact spatial heat mapping recognition of finger movement via sensor array. On this basis, a portable wireless monitoring system was designed by integrating the intelligent sensor with a signal conditioning circuit, data conversion storage module, Bluetooth module,and power module. This system can acquire real-time human oral or nasal breathing signals in the personal mobile app to evaluate the physiological state of individuals. Additionally, the wireless monitoring system can be activated within 10 m, demonstrating the application of Py G sensors in remote data transmission.

关键词： non-contact pyroelectric generator human body heat environmental thermal energy wireless monitoring system

对浅埋煤层“短砌体梁”、“台阶岩梁”结构与砌体梁理论的商榷

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煤炭学报 2008年第11期33卷 1201-1204页

作者：侯忠杰西安科技大学能源学院陕西西安710054

基于砌体梁结构岩块平衡的几何条件,讨论了《矿山压力与岩层控制》教材中浅埋煤层开采岩层控制部分"短砌体梁"结构和"台阶岩梁"结构的概念.认为浅埋煤层顶板因为不满足砌体梁结构断裂岩块长度起码大于层厚2倍的平衡先决条件,因而不能形... 详细信息

基于砌体梁结构岩块平衡的几何条件,讨论了《矿山压力与岩层控制》教材中浅埋煤层开采岩层控制部分"短砌体梁"结构和"台阶岩梁"结构的概念.认为浅埋煤层顶板因为不满足砌体梁结构断裂岩块长度起码大于层厚2倍的平衡先决条件,因而不能形成砌体梁结构,而"短砌体梁"是"断裂岩块厚度与长度之比接近1"的砌体梁结构,故"短砌体梁"概念与砌体梁理论相矛盾;"台阶岩梁"的概念建立在不正确的假设之上,不恰当地应用了砌体梁理论的结论,将已失稳垮落的N岩块仍按砌体梁理论的"铰接"条件分析,因而"台阶岩梁"结构是不存在的.实际上只要视M岩块即"控制岩块"为岩梁建立模型即可.

关键词：浅埋煤层短砌体梁台阶岩梁砌体梁顶板结构

Synthesis of iron(Ⅲ)-doped nanostructure TiO_2/SiO_2 and their photocatalytic activity

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Rare Metals 2007年第6期26卷 565-571页

作者： CHEN Rufen ZHANG Lei SONG Xiuqin WEI YU hou Denglu College of Chemistry and Material Science Hebei Normal University Shijiazhuang Hebei 050016 China Key Laboralory of Advanced Film of Hebei Province Shijiazhuang Hebei 050016 China

Iron（Ⅲ）-doped nanostructure TiO2-coated SiO2 （TiO2/SiO2） particles were prepared using the layer-by-layer assembly technique and their photocatalytic property was studied. TiO2 colloids were synthesized employing the sol-gel method with TiChas a precursor. The samples were characterized by Fourier transform infrared spectroscopy （FTIR）, SEM, EDS, XPS, and XRD. The experimental results show that TiO2 nanopowders on the surface of SiO2 particles are well distributed, the amount of TiO2 is increased with the adding of coating layers, the pure anatase-TiO2 coating layers are synthesized at 500℃, and the photocatalytic activity of Fe^3＋-doped TiO2/SiO2 is higher than that of undoped TiO2/SiO2.

关键词： TiO2 coating SiO2 particle nanostructure layer-by-layer assembly doping photocatalytic activity

Gradient-crosslinked hydrogel microdome pattern for multilevel chromatic encryption

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Science China Chemistry 2023年第12期66卷 3567-3575页

作者： Jing Xue Yu Wang Tailong Zhang Kaixuan Li Florian Vogelbacher Yu Zhang Xiaoyu hou Zixin Zhu Yang Tian Yanlin Song Mingzhu Li Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Bionic Materials and Interface Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China Beijing Key Laboratory for Optical Materials and Photonic Devices Department of ChemistryCapital Normal UniversityBeijing 100048China

In the realm of modern cryptography and anti-counterfeiting,innovative approaches are crucial to encode sensitive information *** responsive structural colors have garnered significant interest due to their feature-rich spectra and high sensitivity to external ***,high costs and complex processing involved in integrating the various delicate microstructures have impeded their widespread *** this study,we present a straightforward multilevel chromatic encryption scheme utilizing direct-writing gradient-crosslinked *** solvent-responsive structural color of each microdome,arising from the synergistic effect of total internal reflections and interference,is adjusted independently across the entire visible *** microdome functions as a signal recording unit,enabling multilevel color variations through a solventdependent development *** approach facilitates the encoding of enhanced information into a single *** demonstrate the efficacy of our method for advanced applications,we have prepared a collection of solvent-dependent multilevel codes for algorithm cryptography,showcasing its potential for high-level anti-counterfeiting and high-density optical data storage.

关键词： oxygen inhibition structural color direct writing encryption storage capacity

Long-term storage of lipid-like nanoparticles for mRNA delivery

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Bioactive Materials 2020年第2期5卷 358-363页

作者： Pengxuan Zhao Xucheng hou Jingyue Yan Shi Du Yonger Xue Wenqing Li Guangya Xiang Yizhou Dong Division of Pharmaceutics&Pharmacology College of PharmacyThe Ohio State UniversityColumbusOH43210United States School of Pharmacy Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Department of Biomedical Engineering The Ohio State UniversityColumbusOH43210United States The Center for Clinical and Translational Science The Ohio State UniversityColumbusOH43210United States The Comprehensive Cancer Center The Ohio State UniversityColumbusOH43210United States Dorothy M.Davis Heart&Lung Research Institute The Ohio State UniversityColumbusOH43210United States Department of Radiation Oncology The Ohio State UniversityColumbusOH43210United States

Lipid-like nanoparticles(LLNs)have been extensively explored for messenger RNA(mRNA)delivery in various biomedical ***,the long-term storage of these nanoparticles is still a challenge for their clinical *** this study,we investigated a series of conditions for the long-term storage of LLNs with encapsulation of *** evaluated the stability of LLNs with different concentrations of cryoprotectants(sucrose,trehalose or mannitol)under the conditions of freezing or lyophilization *** in vitro and in vivo mRNA delivery studies,we identified the optimal storage condition,and found that the addition with 5%(w/v)sucrose or trehalose to LLNs could remain their mRNA delivery efficiency for at least three months in the liquid nitrogen storage condition.

关键词： Lipid-like nanoparticles mRNA delivery Long-term storage

Construction of Minimal Surfaces with Special Type Ends

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Journal of Mathematical Research and Exposition 2010年第6期30卷 997-1008页

作者： Zhong Hua hou Zhan Chang ZHANG Chuan Guang LIANG School of Mathematical Sciences Dalian University of TechnologyLiaoning 116024P.R.China

We proved that there exists a family of complete oriented minimal surfaces in R3 with finite total curvature-4nπ,each of which has 0 genus and two ends,and both of the ends have winding order n,where n ∈ N,and discu... 详细信息

关键词： minimal surface total curvature end winding order.

Stimulate Economic Vitality

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China Today 2015年第2期64卷 51-53页

作者： hou RUILI

CHINA’s economy is going through profound changes,the country’s economic development having entered a"new normal,"according to the Central Economic Work Conference(CEWC)that convened in December *** decades of high growth,the Chinese economy has now entered a period of medium-to-high *** emphasis of its development has shifted from quantity and speed to quality and efficiency,and that of its restructuring to improving rather than expanding production ***

关键词：经济发展活力激发中国经济经济工作