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Identification of FXPRLamide Family Neuropeptides from the Japanese Oak Silkworm,Antheraea yamamai Using Immunocytochemistry Methods

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Agricultural Sciences in China 2006年第12期5卷 944-951页

作者： wei zhao-jun LAI Juan-hong zhao Yuan Department of Biotechnology Hefei University of Technology Hefei 230009 P.R.China The Sericultural Research Institute Chinese Academy of Agricultural Sciences Zhenjiang 212018 P.R.China

In the present study, zooblooting, ELISA, and whole-mount immunocytochemistry methods were used to identify the FXPRLamide family neuropeptides from the Japanese oak silkworm, Antheraea yamamai. The results showed that the genomic DNA from A. yamamai showed positive bands after being hybridized with the fragment of DH-PBAN cDNA from Samia cynthia ricini, which was labeled with [α-32p]-dCTP. The SG showed highest FXPRLamide peptides titer in neural organs. Using an antiserum against Helicoverpa armigera PBAN, PBAN-like immunoreactivity was detected in the SG and TG of A. yamamai by whole-mount immunocytochemistry, and there were three cluster cells in the SG which shows positive PBAN-like immunoreactivity. The titers of FXPRLamide peptides immunoreactivity in the hemolymph were kept at a steady level. During pupation, the titer was increased promptly, but then decreased to a low level after the early pupal stage. The above-mentioned results demonstrate the existence of FXPRLamide family peptides in A. yamamai, but its function needs to be further investigated in the future.

关键词： Antheraea yamamai FXPRLamide family neuropeptides immunocytochemistry identification

Effects of the Specific Area and the Thermal Stability of a Polymer on the Catalytic Activities of Polymer Immobilized Co-Pd Catalysts by SAMI

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Chemical Research in Chinese Universities 2001年第4期17卷 439-444页

作者： WU Shi-hua wei wei ZHU Chang-ying HUANG wei-ping ZHANG Shou-min ZHENG Xiu-cheng ZHANG Shu-hong zhao wei-jun Department of Chemistry Naikai UniversityTianjin 300071P.R.China

Co-Pd bimetallic catalysts immobilized with four kinds of resins with different specific areas were prepared by means of the solvated metal atom impregnation (SMAI) method. The results of the XRD and the magnetic measurement showed that as the specific area of the resin increased, the particle sizes of Co and Pd on the catalysts with the same metal content decreased, so the catalytic activity of the catalysts for the hydrogenation of diacetone alcohol as well as the reduction of oxygen on the fuel cell electrode increased. Below 140 , the conversion of diacetone alcohol increased as the reaction temperature increased, and above 140 , the conversion decreased because of the rupture of the resin.

关键词： Cobalt-palladium catalyst Diacetone alcohol hydrogenation Fuel cell electrode

Description of Concrete Durability Damage Process

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Wuhan University Journal of Natural Sciences 2006年第3期11卷 653-656页

作者： CHEN Yueshun wei jun zhao Xiaolong School of Civil Engineering and Mechanics Huazhong University of Science and Technology Wuhan 430074Hubei China

Based on the damage mechanics, the concrete damage grade of relative stable environment in measurable spatial is constructed in this paper, and the concrete damage evolving model and corresponding failure rule is constructed based on the damage grade fore-defined. Therefore, the concrete health status and the residual life-span can be assessed according to the mea,sured damage grade. It is propitious to drive the development of concrete durability assessment and life-span forecast. Its feasibility of concrete damage process description and health assessment is validated with the exampie in this paper, in which the damage state is described with the ultrasound velocity attenuation, and the freeze-thaw process is regarded as the concrete durability degradation influeneing factor to reflect the concrete durability degradation process.

关键词： concrete durability damage life-span assessment health monitoring ultrasonic velocity

爆破振动对龙首矿露天转地下安全顶柱稳定性影响研究

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爆破 2024年第2期41卷 75-85,126页

作者：赵尔丞魏昭君沈彦丞刘吉祥李菊红张春阳田小龙兰州有色冶金设计研究院有限公司兰州730000 中共甘肃省白银市委党校白银730900 中国市政工程西北设计研究院有限公司兰州730000 武汉理工大学资源与环境工程学院武汉430070

为了探索爆破振动影响下龙首矿露天转地下开采安全顶柱的稳定性演化规律,结合矿区现状建立了对应的三维数值模型,通过计算获取了安全顶柱最危险截面位置,随后以最上部中段开采为例构建了最危险截面位置的二维数值计算模型。根据爆破参... 详细信息

为了探索爆破振动影响下龙首矿露天转地下开采安全顶柱的稳定性演化规律,结合矿区现状建立了对应的三维数值模型,通过计算获取了安全顶柱最危险截面位置,随后以最上部中段开采为例构建了最危险截面位置的二维数值计算模型。根据爆破参数和等效弹性边界的计算,得到掏槽眼、辅助眼和周边眼传递到开挖轮廓面上的爆破荷载峰值。将爆破荷载等效到开挖面后,开展了针对安全顶柱稳定性的数值计算。结果表明:每段延期爆破都产生了位移和振速峰值,且距离爆破位置最近的安全顶柱内监测点位移最大;以爆破作业位置为中心,振动速度向四周岩体球形扩散。根据爆破振速与岩石损伤判据,安全顶柱总体处于无损伤或轻微损伤状态。此外,最大主应力低于岩体抗拉强度,安全顶柱未形成明显地拉裂破坏塑性区。总体上来说,安全顶柱的设计厚度能够满足露天转地下开采需要。然而与数值模型相比,实际地质条件更为复杂,随着开采继续,仍需观察和监测安全顶柱的变化,从而确保其稳定性。

关键词：露天转地下开采安全顶柱爆破振动数值模拟稳定性演化规律

Progress and prospects of chiral nanomaterials for biosensing platforms

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Rare Metals 2024年第6期43卷 2469-2497页

作者： Yu-Cheng Ouyang Bong-jun Yeom Yuan zhao wei Ma School of Food Science and Technology State Key Laboratory of Food Science and ResourcesJiangnan UniversityWuxi 214122China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnanUniversityWuxi214122China Department of Chemical Engineering Hanyang UniversitySeoul04763RepublicofKorea

Chiral nanomaterials have distinct chiroptical properties of preferential interactions to circularly polarized ***-based biosensors have emerged for detection of biomolecules,ions and cells in recent *** review provides an extensive overview of biosensors based on chiral nanomaterials,starting with approaches to chiral nanomaterials construction in terms of fabrication *** of chiral nanomaterials and their biosensor applications is presented for different material types,with special emphasis on the role and importance of material properties and signal generation in *** assessed the technological prospects of the emerging fields of chiral construction,circularly polarized luminescence,Raman optical activity and so on along with their current *** venues for future research on chiral nanomaterials in fabrication,biosensing,disease diagnosis and treatment are also presented in the review.

关键词： Chiral nanomaterials Circular dichroism Biosensors

Aerodynamic/stealth design of S-duct inlet based on discrete adjoint method

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Applied Mathematics and Mechanics(English Edition) 2024年第4期45卷 725-746页

作者： jun DENG Ke zhao Lin ZHOU wei ZHANG Bowen SHU Jiangtao HUANG Zhenghong GAO School of Aeronautics Northwestern Polytechnical UniversityXi’an 710072China Aerospace Technology Institute of China Aerodynamic Research and Development CenterMianyang 621000Sichuan ProvinceChina

It is a major challenge for the airframe-inlet design of modern combat aircrafts,as the flow and electromagnetic wave propagation in the inlet of stealth aircraft are very *** this study,an aerodynamic/stealth optimization design method for an S-duct inlet is *** upwind scheme is introduced to the aerodynamic adjoint equation to resolve the shock wave and flow *** multilevel fast multipole algorithm(MLFMA)is utilized for the stealth adjoint equation.A dorsal S-duct inlet of flying wing layout is optimized to improve the aerodynamic and stealth *** the aerodynamic and stealth characteristics of the inlet are effectively ***,the optimization results are analyzed,and it shows that the main contradiction between aerodynamic characteristics and stealth characteristics is the centerline and crosssectional *** S-duct is smoothed,and the cross-sectional area is increased to improve the aerodynamic characteristics,while it is completely opposite for the stealth *** radar cross section(RCS)is reduced by phase cancelation for low frequency *** method is suitable for the aerodynamic/stealth design of the aircraft airframe-inlet system.

关键词： S-duct inlet aerodynamic/stealth optimization design discrete adjoint upwind scheme multilevel fast multipole algorithm(MLFMA)

Risk identification and safety assessment of human-computer interaction in integrated avionics based on STAMP

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Journal of Systems Engineering and Electronics 2024年第3期35卷 689-706页

作者： zhao Changxiao LI Hao ZHANG wei DAI jun DONG Lei School of Safety Science and Engineering Civil Aviation University of ChinaTianjin 300300China Shenzhen Dajiang Innovation Technology Co. Ltd.Shenzhen 518057China Key Laboratory of Civil Aircraft Airworthiness Technology Civil Aviation Administration of ChinaTianjin 300300China

To solve the problem of risk identification and quantitative assessment for human-computer interaction(HCI)in complex avionics systems,an HCI safety analysis framework based on system-theoretical process analysis(STPA)and cognitive reliability and error analysis method(CREAM)is *** can identify unsafe control actions and find the causal path during the interaction of avionics systems and pilot with the help of formal verification tools *** common performance conditions(CPC)of avionics systems in the aviation environment is established and a quantitative analysis of human failure is carried *** the head-up display(HUD)system interaction process as an example,a case analysis is carried out,the layered safety control structure and formal model of the HUD interaction process are *** the interactive behavior“Pilots approaching with HUD”,four unsafe control actions and35 causal scenarios are identified and the impact of common performance conditions at different levels on the pilot decision model are *** results show that HUD's HCI level gradually improves as the scores of CPC increase,and the quality of crew member cooperation and time sufficiency of the task is the key to its *** case analysis,it is shown that STPACREAM can quantitatively assess the hazards in HCI and identify the key factors that impact safety.

关键词： avionics human-computer interaction(HCI) safety assessment system-theoretic accident model and process human reliability analysis

Al-modified yolk-shell silica particle-supported NiMo catalysts for ultradeep hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene:Efficient accessibility of active sites and suitable acidity

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Petroleum Science 2024年第1期21卷 654-666页

作者： Ke Yu wei-Min Kong Zhen zhao Ai-jun Duan Lian Kong Xi-Long Wang State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang 110034LiaoningChina

Yolk-shell SiO2 particles(YP)with center-radial meso-channels were fabricated through a simple and effective ***-containing YP-supported NiMo catalysts with different Al amounts(NiMo/AYP-x,x=Si/Al molar proportion)were prepared and dibenzothiophene(DBT)and 4,6-dimethyl-dibenzothiophene(4,6-DMDBT)were employed as the probes to evaluate the hydrodesulfurization(HDS)catalytic *** as-prepared AYP-x carriers and corresponding catalysts were characterized by some advanced characterizations to obtain deeper correlations between physicochemical properties and the HDS *** average pore sizes of series AYP-x supports are above 6.0 nm,which favors the mass transfer of organic *** cavity between the yolk and the shell is beneficial for the enrichment of S-containing compounds and the accessibility between reactants and active *** embedded into the silica framework could facilitate the formation of Lewis(L)and Brønsted(B)acid sites and adjust the metal-support interaction(MSI).Among all the as-synthesized catalysts,NiMo/AYP-20 catalyst shows the highest HDS *** improved HDS activity of NiMo/AYP-20 catalyst is attributed to the perfect combination of excellent structural properties of the yolk-shell mesoporous silica,enhanced acidity,moderate MSI,and good accessibility/dispersion of active components.

关键词： Al-containing yolk-shell silica particles Accessibility Acidity Metal-support interaction Hydrodesulfurization

Theoretical Exploration of Alloying Effects on Stabilities and Mechanical Properties ofγʹPhase in Novel Co–Al–Nb-Base Superalloys

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Acta Metallurgica Sinica(English Letters) 2024年第7期37卷 1238-1248页

作者： Guan-Cheng Gu zhao-Jing Han Ze-Yu Chen zhao-Xuan Li Sheng-Bao Xia Zheng-Ning Li Hua Jin wei-wei Xu Xing-jun Liu Shenzhen Research Institute of Xiamen University School of Aerospace EngineeringXiamen UniversityXiamen361005China Institute of Materials Genome and Big Data Harbin Institute of TechnologyShenzhen518055China

The new developedγ/γʹCo–Al–Nb-base alloys show great potentials as high-temperature ***,finding appropriate compositions to improve performance of alloys still poses a great challenge to the development of Co–Al–Nb-base *** by the lack of alloying effects on fundamental properties of criticalγʹphase,we systematically performed a theoretical investigation on the effect of alloying elements TM(TM:Ti,V,Cr,Zr,Mo,Ta,W,Re,and Ru)on phase stabilities and mechanical properties of L1_(2)-typeγʹ(Co,Ni)_(3)(Al,Nb).By analyzing the stability ofγʹphase with respect to its competitive B2 and D0_(19) phases,the results shown that Ti,V,and Cr enhance the L1_(2) stability and widen the L1_(2)–D0_(19) energy barrier,in which V yields the maximum *** analysis of electronic structure indicated that the alternation of valence electrons at fermi level would be the atomic origin for doping TM inγʹ*** calculated results of mechanical properties shown that V and Cr are expected to be optimal dopant for enhancing the strength and the ductility ofγʹ*** addition of Ta is also beneficial for enhancing the strength at the slight expense of ductility ofγʹ*** drawing the mechanical maps,the preferred composition range for the phases with desired properties is roughly demarcated in theory for the multi-addition of V/Cr and V/Ta inγʹ*** findings would be useful for optimizing the performance of novelγ/γʹCo–Al–Nb-base superalloys.

关键词： Co-Al-Nb-base superalloys γ/γʹdual-phase Phase stability Mechanical properties First-principle methods