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Boundedness of parammetric Marcinkiewicz integrals on weighted Hardy spaces

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Applied Mathematics(A Journal of Chinese Universities) 2015年第3期30卷 253-262页

作者： SHI xian-liang SUN jie College of Mathematics and Computer Science Key Laboratory of High Performance Computing and Stochastic Information Processing (HPCSIP) (Ministry of Education of China) Hunan Normal University

In this paper, several new results on the boundedness of parammetric Marcinkiewicz integrals on the weighted Hardy spaces and the weak weighted Hardy spaces are established.

关键词： parammetric Marcinkiewicz integral weight function weighted Hardy space weak weighted Hardy space

Wheel tracking methods to evaluate moisture sensitivity of hot-mix asphalt mixtures

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Frontiers of Structural and Civil Engineering 2016年第1期10卷 30-43页

作者： jie han Harihar Shiwakoti Department of Civil Environmental and Architectural Engineering the University of Kansas Lawrence KS 66044 USA Virginia Department of Transportation 1401 E. Broad St. Richmond VA 23219 USA

Existing test methods to determine moisture sensitivity in hot-mix asphalt （HMA） mixtures are time consuming and inconsistent. This research focused on wheel tracking devices to evaluate moisture sensitivity. The Asphalt Pavement Analyzer （APA） and the Hamburg Wheel Tracking Device （HWTD） were used for this research. Compacted cylindrical samples were fabricated using a Superpave Gyratory compactor. This study selected two most commonly used mixtures, SM-12.5A with PG 64-22 binder in overlay projects and SM-19A mixtures with PG 64-22 binder for major modification projects at Kansas Department of Transportation. Test results show that APA tests could induce stripping in most samples without any anti-stripping agent, which could be identified visually. However, APA results did not indicate any stripping inflection point while the HWTD results showed stripping inflection points, which are important to identify stripping potential of mixtures. The APA results show that wet tests are severe at lower temperatures. The HWTD results show improvement in the performance using anti-stripping agents at later stage. The HWTD test is more effective as a rapid test method in case of determining moisture sensitivity. Laboratory results from this study should be verified and correlated with field performance.

关键词： hot-mix asphalt moisture sensitivity rutting wheel tracking test

Implementation procedure for the generalized moving Preisach model based on a first order reversal curve diagram

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Rare Metals 2009年第4期28卷 355-360页

作者： han Yong ZHU jie State Key laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China

First order reversal curves （FORC） of nanocomposite Nd2Fe14B/Fe3B magnetic materials were measured to attain a FORC diagram, which characterizes reversible magnetization, irreversible magnetization, and magnetic interactions in a hysteresis system. Then, generalized mov- ing Preisach model （GMPM） was implemented based on the FORC diagram. Reversible and irreversible magnetizations shown in FORCs and a FORC diagram were used as an input of GMPM. Coupling interaction between reversible and irreversible magnetizations was added when calculating reversible magnetization. Meanwhile, irreversible magnetic moments＇ interaction was approximately represented by mean field interaction. The result shows that the simulated main curves mostly coincide with the experimental curves.

关键词： FORC diagram Preisach model reversible magnetization irreversible magnetization magnetic interactions

Fe_(0.02)/Ag_(x)-ZnO复合材料的合成及其光催化活性

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陕西科技大学学报 2025年第1期43卷 88-100页

作者：王远港王有杰孙铖赵显一渤海大学化学与材料工程学院辽宁锦州121013 锦州晨晟科技有限公司辽宁锦州121013

采用水热合成法及煅烧法,制备了不同掺杂量的Fe_(0.02)/Ag_(x)-ZnO复合材料,并考察了各催化剂对RhB光催化降解活性.机理分析表明,Fe掺杂进ZnO,Fe^(3+)可以形成陷阱捕获e-,导致ZnO的导带下方形成一个Fe掺杂能级,促使缩短了ZnO的带隙,扩... 详细信息

采用水热合成法及煅烧法,制备了不同掺杂量的Fe_(0.02)/Ag_(x)-ZnO复合材料,并考察了各催化剂对RhB光催化降解活性.机理分析表明,Fe掺杂进ZnO,Fe^(3+)可以形成陷阱捕获e-,导致ZnO的导带下方形成一个Fe掺杂能级,促使缩短了ZnO的带隙,扩大了光谱响应范围;Ag的掺入促使部分电子(e^(-))跃迁到Ag单质上,减小了禁带宽度,降低了电子跃迁所需的能量,抑制了e^(-)-h^(+)的复合,Fe_(0.02)/Ag_(x)-ZnO样品的新费米能级低于Fe-ZnO和ZnO的导带能级,导致其界面处的电荷分离;进一步研究Fe_(0.02)/Ag_(x)-ZnO复合材料对染料罗丹明B(Rhodamine B,RhB)的光催化降解性能和循环使用性能.结果表明,Fe_(0.02)/Ag_(x)-ZnO复合材料可作为一种稳定、高效且可循环的光催化剂材料并用于污水处理,拓展了Fe_(0.02)/Ag_(x)-ZnO复合材料的应用.

关键词：电子跃迁费米能级禁带宽带光催化

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Geosynthetics used to stabilize vegetated surfaces for environmental sustainability in civil engineering

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Frontiers of Structural and Civil Engineering 2017年第1期11卷 56-65页

作者： jie han Jun GUO Department of Civil Environmental and Architectural Engineering the University of Kansas Lawrence KS 66044 USA

Geosynthetics, factory-manufactured polymer materials, have been successfully used to solve many geotechnical problems in civil engineering. Two common applications are earth stabilization and erosion control. Geosynthetics used for earth stabilization include but are not limited to stabilized slopes, walls, embankments, and roads. Geosynthetics used for erosion control are mostly related to slopes, river channels and banks, and pond spillways. To enhance environmental sustainability, vegetation has been increasingly planted on the facing or surfaces of these earth structures. Under such a condition, geosynthetics mainly function as surficial soil stabilization while vegetation provides green appearance and erosion protection of earth surfaces. Recently, geosynthetic or geosynthetic-like material has been used to form green walls outside or inside buildings to enhance sustainability. Geosynthetics and vegetation are often integrated to provide combined benefits. The interaction between geosynthetics and vegetation is important for the sustainability of the earth and building wall surfaces. This paper provides a review of the current practice and research in the geosynthetic stabilization of vegetated earth and building surfaces for environmental sustainability in civil engineering with the emphases on geosynthetic used for erosion protection, geosynthetic-stabilized slopes, geosynthetic-stabilized unpaved shoulders and parking lots, and geosynthetic-stabilized vegetated building surfaces.

关键词： erosion geosynthetic stabilization sustainability vegetation

Fractal Growth of Giant Amphiphiles in Langmuir-Blodgett Films

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Chinese Journal of Polymer Science 2022年第6期40卷 556-566页

作者： Wei-jie Wang xian Xu Yu Shao Jian-Wen Liao han-Xin Jian Bing Xue Shu-Guang Yang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-dimension MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationCenter for Soft Matter Science and EngineeringCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

Fractal structures have attracted considerable scientific interest,and fractal geometry is an effective tool to study the complicated structure and dynamic processes,such as dilation symmetry of disorder structure,percolation,gelation,and metal-insulator ***,we summarized our findings of fractal growth of giant amphiphiles in Langmuir-Blodgett(LB)*** amphiphiles composed of polyhedral oligomeric silsesquioxanes(POSS)derivatives and poly(ethylene oxide)(PEO),with structural diversities of POSS head modification,POSS head number,PEO chain length,are precisely *** effect of molecular structures and operation parameters on the fractal growth patterns are discussed,in addition,other fractal growth patterns in LB films and in Langmuir films are included,aiming to understand the basic molecular principle of fractal growth in LB system.

关键词： Fractal growth Langmuir-Blodgett(LB)film Langmuir film Giant amphiphiles Poly(ethylene oxide)(PEO)crystallization

Product Rotational Polarization in the Li+HF(v=0,j=0)Reaction and Its Isotopic Variants

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Chinese Physics Letters 2011年第8期28卷 72-75页

作者： CHENG jie YUE xian-Fang Department of Physics and Information Engineering Jining UniversityJining 273155

Product rotational polarization in the title reactions is investigated by employing the quasi-classical trajectory *** accurate ground 12A'potential energy surface[***.107(1997)10085]and a collision energy of 110 meV are adopted in these *** commonly used rotational alignment parameter A0(2)and the three angular distributions P(θr),P(φr),and P(θr,φr)(θr andφr being the polar angles of the product angular momentum)are computed in the *** to gain insight into the product rotational alignment and *** is found that the product rotational angular momentum prefers not only to align perpendicular to the reagent relative velocity vector k but also orientate along the negative y axis,which is successfully interpreted by an impulsive *** isotope mass effect on the product rotational polarization is also revealed and discussed.

关键词： method rotational angular

Prognostic risk factors for stroke-associated pneumonia

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Neural Regeneration Research 2010年第20期5卷 1592-1595页

作者： jie han Department of Neurology First Affiliated Hospital of Dalian Medical UniversityDalian 116011Liaoning ProvinceChina

Stroke impacts patient＇s quality of life,but most stroke patients die of complications,such as pulmonary infections,rather than the original ***-associated pneumonia（SAP）is a common complication of acute stroke,but the risk factors are poorly *** can significantly affect neurological recovery after stroke and markedly prolong the hospital *** present study analyzed the risk factors for SAP to improve prevention and treatment ***,diabetes mellitus,states of consciousness,nasal feeding,gastric mucosa protective drugs,and prophylactic use of antibiotics are risk factors for *** addition,smoking,cardiovascular disease,stroke location and properties,and dehydrating agents are associated with SAP,but are not risk factors.

关键词： stroke pneumonia correlation risk retrospective analysis

Advances in nanomaterials for treatment of hypoxic tumor

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National Science Review 2021年第2期8卷 134-150页

作者： Mei-Zhen Zou Wen-Long Liu han-Shi Chen Xue-Feng Bai Fan Gao Jing-jie Ye han Cheng xian-Zheng Zhang The Institute for Advanced Studies Key Laboratory of Biomedical Polymers of Ministry of Education & Department of ChemistryWuhan University School of Chemistry and Materials Science South-Central University for Nationalities

The hypoxic tumor microenvironment is characterized by disordered vasculature and rapid proliferation of tumors, resulting from tumor invasion, progression and metastasis. The hypoxic conditions restrict efficiency of tumor therapies, such as chemotherapy, radiotherapy, phototherapy and immunotherapy,leading to serious results of tumor recurrence and high mortality. Recently, research has concentrated on developing functional nanomaterials to treat hypoxic tumors. In this review, we categorize such nanomaterials into(i) nanomaterials that elevate oxygen levels in tumors for enhanced oxygen-dependent tumor therapy and(ii) nanomaterials with diminished oxygen dependence for hypoxic tumor *** elevate oxygen levels in tumors, oxygen-carrying nanomaterials, oxygen-generating nanomaterials and oxygen-economizing nanomaterials can be used. To diminish oxygen dependence of nanomaterials for hypoxic tumor therapy, therapeutic gas-generating nanomaterials and radical-generating nanomaterials can be used. The biocompatibility and therapeutic efficacy of these nanomaterials are discussed.

关键词： nanomaterials hypoxic tumor tumor therapy oxygen