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航空动力学报 2017年第5期32卷 1183-1194页

作者： YANG Ling ZHONG jing-jun HAN ji-ang Marine Engineering College Dalian Maritime University

The design methods of typical supersonic aircraft intakes and shock wave compression technology have been applied to ram-rotor,an attractive compression system.A ram-rotor is of a typical structure including the compression ramp,the throat and the subsonic diffuser;a scrampressor is similar to ram-rotor,the only difference is that scrampressor has no subsonic *** work was the continuation of the preparatory *** order to further study the effect of throat contraction ratio and strake stagger angle on the flow field and performance of a scrampressor,the flow field of a scrampressor with a three-dimensional flow path was numerically simulated with different throat contraction ratios and strake stagger *** results indicated that the optional aerodynamic performance of a scrampressor could be achieved with an adiabatic efficiency of 0.8413atotal pressure recovery coefficient of 0.8446,a total pressure ratio of 7.14 and a static pressure ratio of 5.17for a throat contraction ratio of 0.6 and a strake stagger angle of 12°.It was therefore concluded that an appropriate decrease in throat contraction ratio and an increase in strake stagger angle could help the comprehensive improvement of a scrampressor in performance.

关键词： scrampressor flow field aerodynamic performance throat contraction ratio strake stagger angle

A computer aided design method for car form and its application based on shape parameters

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Frontiers of Computer Science 2020年第6期14卷 123-139页

作者： Fan LIU Xiaomin ji Gang HU jing GAO School of Mechanical and Precision Instrument Engineering Xi’an University of TechnologyXi’an 710048China School of Art and Design Xi’an University of TechnologyXi’an 710054China School of Sciences Xi’an University of TechnologyXi’an 710054China

In the early design stage,automotive modeling should both meet the requirements of aesthetics and ***,a vehicle CAD(computer aided design)model that can be easily adjusted by feedbacks is *** on CE-Bezier surface,this paper presents a set of algorithms for parametric segmentation and fairing surface generation in a car *** model is defined by a simplified automotive template and relevant control points,shape parameters and segmentation parameters,which can be modified to alter the car form *** this model and the corresponding adjustment method,more than fifty various vehicle models are established in this research according to different *** two methods for calculating similarity index between car models are constructed,which are suitable for brand design trend analysis and modelling design decisionmaking.

关键词： CAD car form design parametric adjustment CE-Bezier surface form similarity

Spin–orbit stable dirac nodal line in monolayer B_(6)O

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Chinese Physics B 2022年第3期31卷 511-516页

作者： Wen-Rong Liu liang Zhang Xiao-jing Dong Wei-Xiao ji Pei-ji Wang Chang-Wen Zhang School of Physics and Technology Institute of SpintronicsUniversity of JinanJinan 250022China School of Physics and Physical Engineering Qufu Normal UniversityQufu 273100China

The two-dimensional(2D) materials with nodal line band crossing have been attracting great research interest. However, it remains a challenge to find high-stable nodal line structure in 2D systems. Herein, based on the first-principles calculations and theoretical analysis, we propose that monolayer B_(6)O possesses symmetry protected Dirac nodal line(DNL)state, with its Fermi velocity of 10^(6)m/s in the same order of magnitude as that of graphene. The origin of DNL fermions is induced by coexistence of time-reversal symmetry and inversion symmetry. A two-band tight-binding model is further given to understand the mechanism of DNL. Considering its robustness against spin–orbit coupling(SOC) and high structural stability, these results suggest monolayer B_(6)O as a new platform for realizing future high-speed low-dissipation devices.

关键词： monolayer B_(6)O Dirac nodal line two-band tight-binding model

Simulation of Interference Nanolithography of Second-Exciting Surface-Plasmon Polartions for Metal Nanograting Fabrication

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Chinese Physics Letters 2011年第1期28卷 205-207页

作者： liang Hui-Min WANG jing-Quan College of Science Hebei University of Engineering Handan 056038 Department of Physics Sichuan University Chengdu 610064

Second-exciting surface-polasmon-polariton （SPP） interference lithography （SE-SPPIL） designed by an improving attenuated total reflection （ATR） mode is suggested for fabricating metal nanograting. A metal film coated under a prism excites SPP first, and then the SPP energy transmits into another metal film and launches SPP again. An interlayer between two metal films is a thin resist coated on the second metal film. An interference nanopattern is formed in the resist when two SPP waves are launched symmetrically. After development, chemical or physical etching, the nanopattern is transferred into the metal film. A random thickness metal grating can be achieved as the thickness of the second metal film does not influence the interference pattern intensity. This scheme is promising for fabricating metal nanograting at low cost.

关键词： Condensed matter: electrical, magnetic and optical Optics, quantum optics and lasers Nanoscale science and low-D systems

Effects of surface impedance on current density in a piezoelectric resonator for impedance distribution sensing

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Applied Mathematics and Mechanics(English Edition) 2021年第5期42卷 677-688页

作者： jing LIU jianke DU ji WANG jiashi YANG Piezoelectric Device Laboratory School of Mechanical Engineering and MechanicsNingbo UniversityNingbo 315211Zhejiang ProvinceChina School of Digital Technology and Engineering Ningbo University of Finance and EconomicsNingbo 315175Zhejiang ProvinceChina Department of Mechanical and Materials Engineering University of Nebraska-LincolnLincolnNE 68588-0526U.S.A.

We study the relationship between the surface mechanical load represented by distributed acoustic impedance and the current density distribution in a shear mode piezoelectric plate acoustic wave resonator.A theoretical analysis based on the theory of piezoelectricity and trigonometric series is *** the specific and basic case when the surface load is due to a local mass layer,numerical results show that the current density concentrates under the mass layer and is sensitive to the physical as well as geometric parameters of the mass layer such as its location and *** provides the theoretical foundation for predicting the surface impedance pattern from the current density distribution,which is fundamental to the relevant acoustic wave sensors.

关键词： piezoelectric resonator sensor plate

Size-controlled chalcopyrite CuInS_2 nanocrystals:One-pot synthesis and optical characterization

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Science China Chemistry 2012年第7期55卷 1236-1241页

作者： PENG Shengjie liang Yanliang CHENG FangYi liang jing Key Laboratory of Functional Polymer Materials Ministry of EducationCollege of ChemistryNankai UniversityTianjin 300071China

Chalcopyrite ternary CulnS2 semiconductor nanocry stals have been synthesized via a facile one-pot chemical approach by using oleylamine and oleic acid as solvents. The as-prepared CuInS2 nanocrystals have been characterized by instrumental analyses such as X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS）, transmission electron microscopy （TEM）/high-resolution TEM （HRTEM）, energy-dispersive X-ray spectroscopy （EDS）, UV-vis absorption spectroscopy （UV-vis） and photoluminescence （PL） spectroscopy. The particle sizes of the CuInS2 nanocrystals could be tuned from 2 to 10 nm by simply varying reaction conditions. Oleylamine, which acted as both a reductant and an effective capping agent, plays an important role in the size-controlled synthesis of CulnS2 nanocrystals. Based on a series of comparative experiments under different reaction conditions, the probable formation mechanism of CulnS2 nanocrystals has been proposed. Furthermore, the UV-vis absorption and PL emission spectra of the chalcopyrite CulnS2 nanocrystals have been found to be adjustable in the range of 527-815 nm and 625-800 rim, respectively, indicating their potential application in photovoltaic devices.

关键词： CuInS2 nanocrystals one-pot synthesis optical property

Hydrothermal Synthesis, Crystal Structure, and Characterization of a Novel Terbium(Ⅲ) Coordination Polymer Bridged by 5-Sulfoisophthalate Trivalent Anions

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Chemical Research in Chinese Universities 2007年第2期23卷 123-126页

作者： YUAN ji-xin XIONG jing School of Chemistry and Materials Science Wenzhou University Wenzhou 325027 P. R. China

Hydrothermal reaction of terbium（ Ⅲ） chloride with 5-sulfoisophthalic acid monosodium salt and 1,10-phenanthroline（phen） at 415 K resulted in the formation of a novel coordination polymer, [ Tb （sip）（phen）（H2O） ],（sip =5-sulfoisophthalate trivalent anion） with a three-dimensional network structure. Each centrosymmetrically related pair of terbium ions axe linked by two sip anions, forming a binuclear unit, and each binuclear unit links to four adjacent tetranuclear units, extending a two-dimensional hybrid layer at crystallographic bc plane. On the other hand, every three-terbium ion is connected by three sip anions, generating a trinuclear ring, and the trinuclear ring connects six neighboring trinuclear rings to produce another two-dimensional layer at crystallographic ab plane. Moreover, each sip anion acts as a pontadentate bridge, interconnecting two different types of layers to yield a novel three-dimensional framework.

关键词： Hydrothermal synthesis Terbium Three-dimensional network 5-Sulfoisophthalate trivalent anion

Toxicity effects of disinfection byproduct chloroacetic acid to Microcystis aeruginosa: Cytotoxicity and mechanisms

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Journal of Environmental Sciences 2023年第7期129卷 229-239页

作者： jing Ye jiawei Ni Fuxiang Tian Xiyan ji Meifang Hou Yuanting Li Lei Yang Runxiang Wang Wenwu Xu liang Meng School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China School of Ecological Technology and Engineering Shanghai Institute of TechnologyShanghai 201418China School of Railway Transportation Shanghai Institute of TechnologyShanghai 201418China School of Environmental and Geographical Sciences Shanghai Normal UniversityShanghai 200234China

Chlorine-based disinfectants are widely used for disinfection in wastewater *** mechanism of the effects of chlorinated disinfection by-products on cyanobacteria was ***,the physiological effects of chloroacetic acid(CAA)on Microcystis aeruginosa(***),including acute toxicity,oxidative stress,apoptosis,production of microcystin-LR(MC-LR),and the microcystin transportation-related gene mcyH transcript abundance have been *** exposure resulted in a significant change in the cell ultrastructure,including thylakoid damage,disappearance of nucleoid,production of gas vacuoles,increase in starch granule,accumulation of lipid droplets,and disruption of cytoplasm ***,the apoptosis rate of *** increased with CAA *** production of MC-LR was affected by CAA,and the transcript abundance of mcyH *** results suggested that CAA poses acute toxicity to ***,and it could cause oxidative damage,stimulate MC-LR production,and damage cell *** study may provide information about the minimum concentration of CAA in the water environment,which is safe for aquatic organisms,especially during the global coronavirus disease 2019 pandemic period.

关键词： Disinfection by-products Microcystin Oxidative damage Ultrastructure characteristics Apoptosis

PREPARATION AND CHARACTERIZATION OF INCLUSION COMPLEXES OF TWO-ARM LINEAR AND FOUR-ARM STAR-SHAPED POLY(ε-CAPROLACTONE)S WITHα-CYCLODEXTRIN

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Chinese Journal of Polymer Science 2006年第3期24卷 245-252页

作者： Lu Wang jing-liang Wang 董常明 Department of Polymer Science ＆ Engineering School of Chemistry and Chemical Technology Shanghai Jiao Tong University Shanghai 200240 China

Both four-ann star-shaped poly（ε-caprolactone）（4sPCL） and two-ann linear PCL （2LPCL） were synthesized and their inclusion complexation with α-cyclodextrin （α-CD） were studied. The inclusion complexes （ICs） formed between the PCL polymers and α-CD were characterized by ^1H-NMR, DSC, TGA, WAXD, and FT-1R, respectively. Both branch ann number and molecular weight of the PCL polymers have apparent effect on the stoichiometry （CL：CD, mol：mol） of these ICs. All these analytical results indicate that the branch arms of the PCL polymers are incorporated into the hydrophobic α-CD cavities and their original crystalline properties are completely suppressed. Moreover, the inclusion complexation between two-ann linear or four-ann star-shaped PCL polymers and α-CD not only enhances the thermal stability of the guest PCL polymers but also improves that of α-CD.

关键词： Inclusion complexes Linear poly(ε-caprolactone) Star-shaped poly(ε-caprolactone) Thermal stability.

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美国公法域外适用机制及中国因应研究

海南大学学报（人文社会科学版） 2025年第1期43卷 195-206页

作者：田静南开大学法学院天津300071

公法域外适用衍生于国际体系的结构性演变,有着经济全球化下独特的政治、经济与意识形态背景。其在公法域外适用需求的显现、国家主权观念的转换、公法禁忌原则的突破以及法律形式的嬗变上,具备了一定的存在基础。但是近年来,囿于美国... 详细信息

公法域外适用衍生于国际体系的结构性演变,有着经济全球化下独特的政治、经济与意识形态背景。其在公法域外适用需求的显现、国家主权观念的转换、公法禁忌原则的突破以及法律形式的嬗变上,具备了一定的存在基础。但是近年来,囿于美国国际法理念的转变,其由原先对严格属地主义的固守转为对国家利益至上的推崇,因而在公法域外适用上愈发地恣意与专断,使公法域外适用存在严重的法律、外交和道德张力。为应对美国公法域外适用,中国须秉承防御与建设共进的思路。一方面,加强国际合作共同抗衡美国公法域外适用制度的滥用,同时健全中国的反制法律体系;另一方面,梳理总结美国多年来在公法域外适用过程中形成的丰富经验,在此基础上构建完善符合国际法基本原则的中国法域外适用制度。

关键词：域外适用管辖权效果原则公法禁忌

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