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Effect of Bi/Si Ratio of BiBSi Glass on Its Structure, Properties and Laser Sealing Shear Strength for Vacuum Glazing

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 13-24页

作者： LIU Wei JIAO Jinxu LUO Dusha ZHOU Junjie SHI Lifen wang Weiwei LI Changqing wang peng XIONG Dehua LI Hong State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China Silica-Based Materials Laboratory of Anhui Province CNBM Research Institute for Advanced Glass Materials Group Co.LtdBengbu 233018China State Key Laboratory of Advanced Technology for Float Glass CNBM Research Institute for Advanced Glass Materials Group Co.LtdBengbu 233018China

The low-melting glass of Bi2O_(3)-B2O_(3)-SiO_(2)(BiBSi)system was used for the first time for laser sealing of vacuum *** the condition of constant boron content,how the structure and properties vary with Bi/Si ratio in low-melting glass was *** addition,the relationships between laser power,low-melting glass solder with different Bi/Si ratios and laser sealing shear strength were *** results show that a decrease in the Bi/Si ratio can cause a contraction of the glass network of the low-melting glass,leading to an increase of its characteristic temperature and a decrease of its coefficient of thermal *** laser sealing,the copper ions in the low-melting glass play an endothermic role.A change in the Bi/Si ratio will affect the valence state transition of the copper ions in the low-melting *** absorbance of the low-melting glass does not follow the expected correlation with the Bi/Si ratio,but shows a linear correlation with the content of divalent copper *** greater the concentration of divalent copper ions,the greater the absorbance of the low-melting glass,and the lower the laser power required for laser *** shear strength of the low melting glass solder after laser sealing was tested,and it was found that the maximum shear strength of Z1 glass sample was the highest up to 2.67 MPa.

关键词： Bi2O_(3)-B2O_(3)-SiO_(2)(BiBSi) Bi/Si ratio low-melting glass laser sealing vacuum glazing

Dramatical enhancement of circular dichroism in chiral hybrid perovskites via carboxylic hydrogen bond engineering

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Science China Chemistry 2025年

作者： Hang Li Xinling Li peng wang Tingting Zhu Ruiqing Li Huang Ye Yaru Geng Hongliang Dai Junhua Luo State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences University of Chinese Academy of Sciences Fujian College University of Chinese Academy of Sciences College of Chemistry Fuzhou University College of Chemistry and Materials Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of EducationJiangxi Normal University

Chiral hybrid perovskites （CHPs） have been regarded as promising candidates for developing chiroptoelectronics ***,circular dichroism （CD）,as one of the most important characteristics to evaluate the chiroptical activity,remains at a comparatively low level in CHPs compared to other chiral materials,which hinders the successful applications of CHPs in stateof-the-art ***,exploring new methods for enhancing CD in CHPs is urgently needed and remains ***,enhanced CD response has been successfully realized via constructing carboxylic hydrogen bonding in chiralachiral mixed cations perovskites （R/S-PPA）2（ABA）PbBr5（2R/2S）(PPA=1-phenylpropylamine,ABA=4-aminobutyric acid).Compared with the prototype （R/S-PPA）PbBr3（1R/1S）,2R/2S provide intimate connections between organic units and inorganic parts via carboxylic hydrogen bonding N–H···O bridge,contributing new chirality transfer paths.A larger inorganic skeletons’helicity in 2R/2S predicts a high degree of chirality ***,2R/2S exhibit significantly enhanced CD response with an anisotropy factor amplified by an order of ***,bright blue circularly polarized luminescence applications are achieved in 2R/*** work systematically investigates the correlation between CD and hydrogen bonding interaction in CHPs,meanwhile providing a new avenue to develop the application potential of chiral materials in chiroptoelectronics.

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14种市售麻椒鸡的品质及风味分析

食品工业科技 2025年第1期46卷 302-316页

作者：刘聪刘欣王鹏徐幸莲王寅李建超南京农业大学肉品质量控制与新资源创制全国重点实验室江苏南京210095 江苏立华食品有限公司江苏常州213200

为明确麻椒鸡产品的品质特性及风味特征,本研究以14种不同品牌的市售麻椒鸡(以A~N字母表示)作为研究对象,测定了其色泽、质构、剪切力、电子鼻、挥发性风味物质和电子舌,并结合感官评价进一步探究感官评价指标与仪器分析指标之间的相关... 详细信息

为明确麻椒鸡产品的品质特性及风味特征,本研究以14种不同品牌的市售麻椒鸡(以A~N字母表示)作为研究对象,测定了其色泽、质构、剪切力、电子鼻、挥发性风味物质和电子舌,并结合感官评价进一步探究感官评价指标与仪器分析指标之间的相关性。结果表明:14种麻椒鸡鸡胸的硬度范围为1742.81~4587.54 g,剪切力范围为14.41~35.07 N;鸡腿的硬度范围为797.09~3389.61 g,剪切力范围为7.70~26.34 N。电子鼻评价结果显示,14种麻椒鸡的主要挥发性气味成分为氮氧化合物、无机硫化物、有机硫化物和短链烷烃。气相色谱-离子迁移谱(GCIMS)显示,麻椒鸡风味的形成是鸡肉本身带有的香气和香辛料赋予香气整体协调的结果,14种麻椒鸡中共鉴定出77种挥发性化合物,结合正交偏最小二乘判别分析(OPLS-DA)发现,丁醛、芳樟醇、α-蒎烯、丙烯酸乙酯、α-松油醇、2-庚酮、1-辛烯-3-醇等26种物质为麻椒鸡产品的特征风味物质。电子舌评价结果显示,鲜味和咸味对麻椒鸡的滋味贡献较突出。相关性分析结果表明,感官评价中的总体喜爱度与丁醛、芳樟醇、α-蒎烯、丙烯酸乙酯、α-松油醇、2-庚酮、1-辛烯-3-醇、W5S、W1W、W2W、W1S、咸味、L^(*)和b^(*)值等指标呈现极显著正相关(P<0.01)。本研究可以为麻椒鸡产品风味品质的研究与调控、原辅料的选择、麻椒鸡产品工业化水平的提升提供参考。

关键词：麻椒鸡风味特征气相色谱-离子迁移谱品质特性相关性

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Willmore Surfaces in Spheres via Loop Groups Ⅳ: On Totally Isotropic Willmore Two-Spheres in S^(6)

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Chinese Annals of Mathematics,Series B 2021年第3期42卷 383-408页

作者： peng wang College of Mathematics&Informatics FJKLMAAFujian Normal UniversityQishan CampusFuzhou 350117China

In this paper the author derives a geometric characterization of totally isotropic Willmore two-spheres in S^(6), which also yields to a description of such surfaces in terms of the loop group language. Moreover, applying the loop group method, he also obtains an algorithm to construct totally isotropic Willmore two-spheres in S^(6). This allows him to derive new examples of geometric interests. He first obtains a new, totally isotropic Willmore two-sphere which is not S-Willmore(i.e., has no dual surface) in S^(6). This gives a negative answer to an open problem of Ejiri in 1988. In this way he also derives many new totally isotropic, branched Willmore two-spheres which are not S-Willmore in S^(6).

关键词： Totally isotropic Willmore two-spheres Normalized potential Iwasawa decompositions

An analytical analysis for the mechanical performance of fully-grouted rockbolts based on the exponential softening model

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International Journal of Mining Science and Technology 2022年第5期32卷 981-995页

作者： Zhongwen Yue Akang Li peng wang peng wang Department of Mechanics and Civil Engineering China University of Mining and Technology-BeijingBeijing 100083China Pan-China Construction Group Co. Ltd.Beijing 100070China

This paper presented a novel bond-slip model to better reveal the mechanical behavior of the bolt-grout interface for fully-grouted rockbolts under tensile loads by considering the non-linear response in the softening *** exponential decay function is adopted for describing the non-linear response in the softening *** on the improved bond-slip model,the corresponding analytical solutions for the interfacial shear stress and the axial force of the bolt under different loading stages are ***,the validity of this proposed model was verified by comparing with the experimental *** results show that compared with the linear softening model,the proposed model is more suitable for predicting the mechanical performance of fully-grouted ***,a series of parametric studies are conducted to explore the effect of model parameters on the mechanical properties of fully-grouted *** results indicate that compared with the anchor length,the bolt diameter and the bond strength of the bolt-grout interface have a significance influence on the ultimate load of bolt,especially for the elastic and softening ***,it can be found that using the linear softening model maybe overestimates the supporting performance of grouted bolt,resulting in an unsafe design for bolt.

关键词： Fully-grouted rockbolts Non-linear response Bond-slip model Anchor length Analytical solutions

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高克重土工织物在围填海堤防工程中的应用

水利技术监督 2025年第1期 253-254,286页

作者：王鹏孙正上海交通建设总承包有限公司上海浦东200136

本研究目的是评估高克重土工织物在填海造地工程中的防护效果,旨在提升堤防抵御风浪冲击的能力。通过对比分析法,结合上海国际航运中心洋山深水港区的实际工程,研究不同克重土工织物的性能,总结了施工关键点。研究结果表明,650g/m^(2)... 详细信息

本研究目的是评估高克重土工织物在填海造地工程中的防护效果,旨在提升堤防抵御风浪冲击的能力。通过对比分析法,结合上海国际航运中心洋山深水港区的实际工程,研究不同克重土工织物的性能,总结了施工关键点。研究结果表明,650g/m^(2)复合土工布在频繁风浪条件下表现最佳,有效降低了工程的安全风险和成本。本研究的意义在于为类似堤防加固工程提供了实践经验和参考。

关键词：填海造地高克重复合土工织物堤防加固

Perturbation to Noether Symmetry and Noether adiabatic Invariants of Discrete Mechanico-Electrical Systems

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Chinese Physics Letters 2011年第4期28卷 8-11页

作者： wang peng College of Physics and Electronic Engineering Xinjiang Normal UniversityUrumqi 830054 Shanghai Institute of Applied Mathematics and Mechanics Shanghai UniversityShanghai 200072

Perturbation to Noether symmetry of discrete mechanico-electrical systems on an uniform lattice is ***,Noether theorem of a system is ***,the criterion of perturbation to Noether symmetry of the system is *** on the definition of adiabatic invariants,Noether adiabatic invariants of the system are ***,An example is given to support these results.

关键词： adiabatic Noether invariants

A Characterization of the Ejiri Torus in S^5

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Acta Mathematica Sinica,English Series 2016年第9期32卷 1014-1026页

作者： peng wang Department of Mathematics Tongji University Shanghai 200092 P. R. China

We conjecture that a Willmore torus having Willmore functional between 2π2 and 2π2 √3 is either conformally equivalent to the Clifford torus, or conformally equivalent to the Ejiri torus. Ejiri＇s torus in S5 is the first example of Willmore surface which is not conformally equivalent to any minimal surface in any real space form. Li and Vrancken classified all Willmore surfaces of tensor product in S n by reducing them into elastic curves in S3, and the Ejiri torus appeared as a special example. In this paper, we first prove that among all Willmore tori of tensor product, the Willmore functional of the Ejiri torus in S5 attains the minimum 2π2 √3, which indicates our conjecture holds true for Wilhnore surfaces of tensor product. Then we show that all Willmore tori of tensor product are unstable when the co-dimension is big enough. We also show that the Ejiri torus is unstable even in S5. Moreover, similar to Li and Vrancken, we classify all constrained Wilhnore surfaces of tensor product by reducing them with elastic curves in S3. All constrained Willmore tori obtained this way are also shown to bc unstable when the co-dimension is big enough.

关键词： Willmore functional Ejiri's Willmore torus surfaces of tensor product elastic curves,constrained Willmore surfaces

Response surface method using grey relational analysis for decision making in weapon system selection

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Journal of Systems Engineering and Electronics 2014年第2期25卷 265-272页

作者： peng wang peng Meng Baowei Song School of Marine Science and Technology Northwestern Polytechnical University

A proper weapon system is very important for a na- tional defense system. Generally, it means selecting the optimal weapon system among many alternatives, which is a multiple- attribute decision making （MADM） problem. This paper proposes a new mathematical model based on the response surface method （RSM） and the grey relational analysis （GRA）. RSM is used to obtain the experimental points and analyze the factors that have a significant impact on the selection results. GRA is used to an- alyze the trend relationship between alternatives and reference series. And then an RSM model is obtained, which can be used to calculate all alternatives and obtain ranking results. A real world application is introduced to illustrate the utilization of the model for the weapon selection problem. The results show that this model can be used to help decision-makers to make a quick comparison of alternatives and select a proper weapon system from multiple alternatives, which is an effective and adaptable method for solving the weapon system selection problem.

关键词： weapon system multiple-attribute decision making(MADM) response surface method (RSM) grey relational analysis(GRA).