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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第10期12卷 758-770页

作者： zi-han wang Jian ZHOU Department of Geotechnical Engineering Tongji University Shanghai 200092 China

As a new kind of technology in retaining structures, the characteristics of double-row piles are significantly affected by spatial effects. In this paper, double-row piles as a retaining structure are simulated numerically in three-dimension by finite element software PLAXIS 3D FOUNDATION. The behavior differences of piles in different positions around the foundation pit are analyzed. By changing the parameters, including the length-width ratio, the excavation depth, the distance between rows and the diameter of piles, the variations of the lateral deformation, the bending moment and the earth pressure around the piles are determined. The reasonable values of parameters and some suggestions with consideration of earth pressure are proposed for the design of double-row piles as a retaining structure. The results show that the lateral deformation and bending moment are the largest in the middle of long side of the foundation pit, which is identified as the most unfavorable position. It is indicated that the earth pressure between rows above pit bottom is close to active earth pressure, while the earth pressure between rows under pit bottom is close to static earth pressure. It is suggested that 1/2-2/3 of pile length, 0.6-1.2 m, 3d-6d, and 2d-2.5d be chosen as embedded depth of piles, diameter of piles, distance between rows, and distance between piles, respectively, where d is the pile diameter.

关键词： Double-row piles Retaining structure Spatial effect Finite element Earth pressure

Thermodynamic and experimental study of high-temperature roasting of blast furnace gas ash for recovery of metallic zinc and iron

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Journal of Iron and Steel Research International 2024年第1期31卷 108-120页

作者： zi-han wang Jing Guo han-jie Guo Bin Li School of Metallurgical Engineering University of Science and Technology BeijingBeijing100083China School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710055ShaanxiChina

A high-temperature reduction roasting method was used to achieve metallic iron and zinc recovery from blast furnace gas ash(BFA).The reduction processes for Zn-containing and Fe-containing oxides were analyzed in detail by using ther-modynamic equilibrium calculation and the principle of minimum free *** results showed that the main reaction in the system is the reduction of ZnFe_(2)_(4)and iron *** the full temperature range,iron oxides were more easily reduced than zinc *** of the amount of CO contained in the system,the reduction of ZnO to Zn was difficult to proceed below the boiling point(906℃)of *** the reduction temperature is below 906℃,the reduction process of zinc ferrate was ZnFe_(2)_(4)→ZnO;when the reduction temperature is above 906℃,its reduction process becomed ZnFe_(2)_(4)→ZnO→Zn(g).The metallization and dezincification rates of the BFA gradually increased with increasing reaction *** the C/O ratio increased,the metallization and dezincification rates first increased and then *** effect of reduction time on BFA reduction was similar to that of reaction temperature.

关键词： Blast furnace gas ash Thermodynamics zinc removal Iron reduction High-temperature reduction roasting Integrated utilization

Power-law Distribution and Scale-invariant Structure from the First CHIME/FRB Fast Radio Burst Catalog

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Research in Astronomy and Astrophysics 2023年第2期23卷 42-46页

作者： zi-han wang Yu Sang Xue Zhang Center for Gravitation and Cosmology College of Physical Science and TechnologyYangzhou UniversityYangzhou 225009.China Shanghai Frontier Science Research Center for Gravitational Wave Detection School of Aeronautics and AstronauticsShanghai Jiao Tong UniversityShanghai 200240China

We study the statistical property of fast radio bursts(FRBs) based on a selected sample of 190 one-off FRBs in the first CHIME/FRB *** power law models are used in the analysis,and we find the cumulative distribution functions of energy can be well fitted by bent power law and thresholded power law *** distribution functions of fluctuations of energy well follow the Tsallis q-Gaussian *** q values in the Tsallis q-Gaussian distribution are constant with small fluctuations for different temporal scale intervals,indicating a scale-invariant structure of the *** earthquakes and soft gamma repeaters show similar properties,which are consistent with the predictions of self-organized criticality systems.

关键词： methods statistical-radio continuum galaxies-catalogs

Laser interference fabrication of large-area functional periodic structure surface

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Frontiers of Mechanical Engineering 2018年第4期13卷 493-503页

作者： Lei wang zi-han wang Yan-Hao YU Hong-Bo SUN State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 China

Functional periodic structures have attracted significant interest due to their natural capabilities in regulating surface energy, surface effective refractive index, and diffraction. Several technologies are used for the fabrication of these functional structures. The laser interference technique in particular has received attention because of its simplicity, low cost, and high-efficiency fabrication of large-area, micro/nanometer-scale, and periodically patterned structures in air conditions. Here, we reviewed the work on laser interference fabrication of large-area functional periodic structures for antireflection, self-cleaning, and superhydrophobicity based on our past and current research. For the common cases, four-beam interference and multi-exposure of two-beam interference were emphasized for their setup, structure diversity, and various applications for antireflection, self-cleaning, and superhydrophobicity. The relations between multi-beam interference and multi-exposure of two-beam interference were compared theoretically and experimentally. Nanostructures as a template for growing nanocrystals were also shown to present future possible applications in surface chemical control. Perspectives on future directions and applications for laser interference were presented.

关键词： laser interference four-beam interference multi-exposure of two-beam interference additive fabrication

Molecular mechanism for the unusual enhancement of the second-step chemiluminescence production from the carcinogenic tetrabromohydroquinone and H2O_(2)

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Journal of Environmental Sciences 2024年第7期141卷 330-342页

作者： zi-han wang Chun-Hua Huang Zhi-Sheng Liu Li Mao Ben-Zhan Zhu State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of Environment and Resources University of Chinese Academy of SciencesBeijing 100049China

We have found recently that two-step intrinsic hydroxyl radical(·OH)-dependent chemiluminescence(CL)could be produced by carcinogenic tetrahaloquinone and H_(2)O_(2).However,the first-step CL was too fast to clearly detect the stepwise generation of·OH and CL,and to distinguish the exact dividing point between the first-step and second-step *** we found that,extremely clear two-step intrinsic CL could be produced by the relative slow reaction of tetrabromohydroquinone(TBHQ)with H_(2)O_(2),which was directly dependent on the two-step·OH ***,the second-step,but not the first-step CL production of TBHQ/H_(2)O_(2)(CRET donor)was markedly enhanced by fluorescein(a typical xanthene dye,CRET acceptor)through a unique chemiluminescence resonance energy transfer(CRET)*** novel CRET system of TBHQ/H_(2)O_(2)/fluorescein was successfully applied for the sensitive detection of TBHQ with the detection limit as low as 2.5μmol/*** findings will help to develop more sensitive and highly efficient CL or CRET systems and specific CL sensor to detect the carcinogenic haloquinones,which may have broad environmental applications.

关键词： Two-step chemiluminescence Bromohydroquinone Hydrogen peroxide Hydroxyl radical CRET

Propagation of shaped beam through uniaxially anisotropic chiral slab

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Chinese Physics B 2020年第11期29卷 380-385页

作者： Ming-Jun wang Jia-Lin Zhang Hua-Yong Zhang zi-han wang School of Automation and Information Engineering Xi’an University of TechnologyXi’an 710048China School of Electronics and Information Engineering Anhui UniversityHefei 230039China School of Chemistry and Chemical Engineering Anhui UniversityHefei 230039China School of Physics and Telecommunications Engineering Shaanxi University of TechnologyHanzhong 723001China

A general solution is obtained to a canonical problem of the reflection and refraction of an arbitrary shaped beam by using a uniaxially anisotropic chiral *** reflected,internal as well as refracted shaped beams are expanded in terms of cylindrical vector wave functions,and the expansion coefficients are determined by using the boundary conditions and method of moments *** two typical examples,the normalized field intensity distributions are evaluated for a fundamental Gaussian beam and Hermite-Gaussian beam,and some propagation properties,especially the negative refraction phenomenon,are discussed briefly.

关键词： shaped beam uniaxially anisotropic chiral slab reflection and refraction negative refraction phenomenon

Atypical Takotsubo cardiomyopathy presenting as acute coronary syndrome:A case report

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World Journal of Clinical Cases 2022年第29期10卷 10772-10778页

作者： zi-han wang Jia-Rong Fan Gao-Yu Zhang Xian-Lun Li Lin Li Beijing University of Chinese Medicine Graduate SchoolBeijing 100029Chaoyang DistrictChina Department of Integrative Cardiology China-Japan Friendship HospitalBeijing 100029Chaoyang DistrictChina

BACKGROUND Takotsubo cardiomyopathy(TS)is a rare acute cardiac disease with clinical features,symptoms,and electrocardiographic manifestations similar to those of acute myocardial *** present the case of a patient with TS caused by a pheochromocytoma,which was confirmed by the postoperative ***,we present the patient’s subsequent management,treatment,and *** SUMMARY A 64-year-old woman was admitted to the hospital with episodic chest pain and palpitations,electrocardiogram(ECG)findings suggestive of high lateral wall myocardial infarction,echocardiogram showing left ventricular wall segmental motion abnormalities,and elevated levels of the myocardial marker *** patient underwent coronary angiography,which revealed unobstructed blood flow without obvious *** their hospitalization,the patient had paroxysmal elevation of blood pressure accompanied by palpitations and profuse sweating,with elevated blood catecholamine levels during *** computerized tomography of the adrenal glands revealed the presence of a nodule in the right adrenal,which was resected and determined to be an adrenal ***,the diagnosis of pheochromocytoma-induced atypical TS was *** patient had an uneventful postoperative *** Cardiologists should consider pheochromocytoma in patients with *** detection allows timely intervention,benefiting patients.

关键词： Takotsubo cardiomyopathy Acute coronary syndromes Pheochromocytoma Diagnose Prognosis Case report

Discovery of CCDC188 gene as a novel genetic target for human acephalic spermatozoa syndrome

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Protein & Cell 2024年第9期15卷 704-709页

作者： Jing wang Hui-Juan Jin Yi Lu zi-han wang Teng-Yan Li Lan Xia Hong-Jun Li Bin-Bin wang Su-Ren Chen Department of Medical Genetics and Developmental Biology School of Basic Medical SciencesCapital Medical UniversityBeijing 100069China Key Laboratory of Cell Proliferation and Regulation Biology Ministry of EducationDepartment of BiologyCollege of Life SciencesBeijing Normal UniversityBeijing 100875China Graduate School Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100005China Department of Urology Peking Union Medical College HospitalBeijing 100005China Center for Genetics National Research Institute of Family PlanningBeijing 100081China NHC Key Laboratory of Reproductive Health Engineering Technology Research(NRIFP) Beijing 100081China

Dear Editor,Male infertility is a widespread health problem and affects approximately 6%–8%of the male population(Jiao et al.,2021).Acephalic spermatozoa syndrome(ASS),a rare but severe type of teratozoospermia,is ch... 详细信息

关键词： infertility finally

Molecular solid solution of lanthanide-titanium-oxo clusters with enhanced photocatalytic hydrogen evolution

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Science China Chemistry 2024年第2期67卷 529-535页

作者： Rong Chen Chao-Long Chen Hui Zhang zi-han wang Fu-Li Sun Ming-Hao Du Gui-Lin Zhuang Cheng wang La-Sheng Long Lan-Sun Zheng Xiang-Jian Kong Collaborative Innovation Centre of Chemistry for Energy Materials State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China College of Chemical Engineering Zhejiang University of TechnologyHangzhou310032China

Molecular solid solutions of metal clusters containing different metal centers with well-defined structures can accurately regulate the HOMO-LUMO gap,but are rarely ***,a series of colorless lanthanide-titanium-oxo clusters Ln_(2)Ti_4(μ_(2)-O)_(2)(μ_(3)-O)_4(Piv)_(10)(THF)_(2)(Ln_(2)Ti_4,Ln = Eu,Gd,Tb,and Ce,HPiv = pivalic acid) were synthesized by the reaction of pivalic acid with Ln(Ac)_(3) and titanium *** light yellow crystal of cluster solid solutions Eu_(2)Ti_(4-x)Cd_(x),containing a mixture of Eu_(2)Ti_4 and Eu_(2)Ti_(3)Cd,was obtained by in situ doping Cd^(2+) and S^(2–).Eu_(2)Ti_(3.92)Cd_(0.08) displays efficient photocatalytic hydrogen evolution activity without a co-catalyst,which is up to 2.6 times that of Eu_(2)Ti_*** time-resolved transient absorption spectroscopy and spin-polarized density functional calculations showed that the enhanced photocatalytic performance of Eu_(2)Ti_(4-x)Cd_(x) can be attributed to the narrower HOMO-LUMO gap and lower LUMO position than that of Eu_(2)Ti_*** studyprovides an in situ doping method to realize the simple preparation of cluster solid solution.

关键词： molecular solid solution lanthanide-titanium-oxo clusters photocatalytic hydrogen evolution

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Eosinophilic fasciitis difficult to differentiate from scleroderma:A case report

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World Journal of Clinical Cases 2023年第13期11卷 3092-3098页

作者： Tian-Yi Lan zi-han wang Wei-Ping Kong Jin-Ping wang Nan Zhang Di-Er Jin Jing Luo Qing-Wen Tao Ze-Ran Yan Graduate College Beijing University of Chinese MedicineBeijing 100029China Traditional Chinese Medicine Department of Rheumatism China-Japan Friendship HospitalBeijing 100029China

BACKGROUND Eosinophilic fasciitis(EF)is a rare connective tissue disease that can cause swelling and sclerosis of the extremities,and special attention is needed to differentiate EF from systemic *** or omission markedly delays treatment of EF,and severe skin sclerosis in advanced stages can cause joint contracture and tendon retraction,worsening the patient's prognosis and quality of *** SUMMARY We report a case of EF in a young woman diagnosed by tissue biopsy,confirming the difficulty of differential diagnosis with *** Focusing on skin manifestations,completing tissue biopsy and radiography can help diagnose EF *** should enhance their understanding of the differences between EF and scleroderma,and early diagnosis and standardized treatment can improve the prognosis of patients with EF.

关键词： Eosinophilic fasciitis Scleroderma Biopsy Diagnose Prognosis Case report