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Dual-channel mechano-phosphorescence:a combined locking effect with twisted molecular structures and robust interactions

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Light(Science & Applications) 2024年第4期13卷 738-746页

作者： Zongliang Xie Zhu Mao hailan wang Yuxin Xiao Xiayu Zhang Tao Yu Zhongfu An Wei Huang Frontiers Science Center for Flexible Electronics Xi’an Institute of Flexible Electronics&Xi’an Institute of Biomedical Materials and EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’an 710072China. Research&Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518100China. Shenzhen Institutes of Advanced Electronic Materials Shenzhen 518100China. Key Laboratory of Flexible Electronics&Institute of Advanced Materials Nanjing Tech University30 South Puzhu RoadNanjing 211816China

Organic mechanoluminescence materials,featuring dual emission and ultralong phosphorescence characteristics,exhibit significant potential for applications in real-time stress sensing,pressure-sensitive lighting,advanced security marking techniques,and material breakage ***,due to immature molecular design strategies and unclear luminescence mechanisms,these materials remain rarely *** this study,we propose a valuable molecular design strategy to achieve dual-channel *** introducing the arylphosphine oxide group into a highly twisted molecular framework,enhanced intra-and intermolecular interactions could be achieved within rigid structures,leading to dual-channel mechanoluminescence with greatly promoted ultralong *** investigations reveal the substantial boosting effect of intra-and intermolecular interactions on mechanoluminescence and ultralong phosphorescence properties by locking the highly twisted molecular *** work provides a concise and guiding route to develop novel smart responsive luminescence materials for widespread applications in material science.

关键词： channel luminescence locking

Fuzzy C-Means Algorithm Based on Density Canopy and Manifold Learning

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Computer Systems Science & Engineering 2024年第3期48卷 645-663页

作者： Jili Chen hailan wang Xiaolan Xie Guangxi Key Laboratory of Embedded Technology and Intelligent System Guilin541006China College of Information Science and Engineering Guilin University of TechnologyGuilin541004China

Fuzzy C-Means(FCM)is an effective and widely used clustering algorithm,but there are still some *** the number of clusters must be determined manually,the local optimal solutions is easily influenced by the random selection of initial cluster centers,and the performance of Euclid distance in complex high-dimensional data is *** solve the above problems,the improved FCM clustering algorithm based on density Canopy and Manifold learning(DM-FCM)is ***,a density Canopy algorithm based on improved local density is proposed to automatically deter-mine the number of clusters and initial cluster centers,which improves the self-adaptability and stability of the ***,considering that high-dimensional data often present a nonlinear structure,the manifold learning method is applied to construct a manifold spatial structure,which preserves the global geometric properties of complex high-dimensional data and improves the clustering effect of the algorithm on complex high-dimensional ***-Mallows Index(FMI),the weighted average of homogeneity and completeness(V-measure),Adjusted Mutual Information(AMI),and Adjusted Rand Index(ARI)are used as performance measures of clustering *** experimental results show that the manifold learning method is the superior distance measure,and the algorithm improves the clustering accuracy and performs superiorly in the clustering of low-dimensional and complex high-dimensional data.

关键词： Fuzzy C-Means(FCM) cluster center density canopy ISOMAP clustering

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稀土钇生物浸出研究进展

生物学杂志 2024年第3期41卷 61-68页

作者：颜琳琳汪海兰肖春桥方云武汉工程大学环境生态与生物工程学院教育部绿色化工过程重点实验室武汉430205

综述稀土钇(Y)在自然界的赋存状态及分布情况、主要的化学提取与生物提取方法,并从稀土钇生物浸出(微生物吸附、微生物代谢物浸取)、稀土钇对微生物的影响等方面探讨稀土钇与微生物之间的关系。生物法提取稀土钇前景广阔,但仍然面临着... 详细信息

综述稀土钇(Y)在自然界的赋存状态及分布情况、主要的化学提取与生物提取方法,并从稀土钇生物浸出(微生物吸附、微生物代谢物浸取)、稀土钇对微生物的影响等方面探讨稀土钇与微生物之间的关系。生物法提取稀土钇前景广阔,但仍然面临着优势浸矿菌株匮乏、矿物-微生物互作机制尚不明确等诸多问题,在此基础上进一步提出建立高通量浸矿微生物筛选和功能菌种快速识别方法、加强微生物与钇在分子水平上的相互作用机制和微生物对钇元素的选择性浸出研究、推广微生物代谢产物生物浸取,优化原位浸提工艺技术等建议,期望能对我国钇资源的设计开发提供参考。

关键词：稀土钇生物浸出微生物吸附微生物代谢物

基于中低温相变材料的管壳式储热单元传热性能数值分析

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储能科学与技术 2024年第10期13卷 3376-3387页

作者：王海岚张晓宇国建鸿赵勇陈卓王一波北京建筑大学电气与信息工程学院中国科学院电工研究所

针对管壳式相变储热单元换热效率低的问题，设计一种带有径向矩形翅片的复合盐管壳式相变储热单元，进行数值模拟并与实验研究对比验证，然后选择适当的性能指标分析模拟结果。采用ANSYS FLUENT进行三维瞬态仿真，改变换热流体入口温度... 详细信息

针对管壳式相变储热单元换热效率低的问题，设计一种带有径向矩形翅片的复合盐管壳式相变储热单元，进行数值模拟并与实验研究对比验证，然后选择适当的性能指标分析模拟结果。采用ANSYS FLUENT进行三维瞬态仿真，改变换热流体入口温度及储热单元翅片间距进行储热过程的数值计算，对相变材料温度变化、传热过程及熔化情况进行对比分析。结果表明：提高换热流体温度和缩小翅片间距是有效的强化换热手段。在本设计中，换热流体水与相变材料复合盐CH3COONa·3H2O—KCl相变温差每增加5℃，相变材料熔化速率分别提升54.98%、34.67%、23.92%、18.13%、14.45%，潜热储热速率分别提升61.56%、45.79%、35.15%、27.04%、22.31%，速率提升效果均逐渐减弱。翅片间距每缩短10mm，相变材料熔化速率分别提升32.37%、41.26%、38.66%，储热量随之减少6.40%、11.95%、6.55%，储能密度降低0.53%、10.97%、1.57%，实际应用中需综合换热能力、成本等方面选择合适的翅片间距。研究结果为实际工程中储热单元的设计优化提供理论支持。

关键词：数值模拟相变储热管壳式储热单元中低温相变材料强化换热

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非沥青基非固化橡胶防水涂料的开发与研究

中国建筑防水 2024年第5期 13-17页

作者：王海澜王梓诺郑志杰孙壮远大洪雨(唐山)防水材料有限公司河北唐山301505

制备了一种红色非沥青基非固化橡胶防水涂料。试验结果表明,添加40%的C9加氢石油树脂作为涂料的骨架材料,选用30%的低倾点环烷油,并添加3%的SBS弹性体改性剂、6%的SBR颗粒、2%的氧化聚乙烯蜡、20%的重钙和5%的氧化铁红,制得的非沥青基... 详细信息

制备了一种红色非沥青基非固化橡胶防水涂料。试验结果表明,添加40%的C9加氢石油树脂作为涂料的骨架材料,选用30%的低倾点环烷油,并添加3%的SBS弹性体改性剂、6%的SBR颗粒、2%的氧化聚乙烯蜡、20%的重钙和5%的氧化铁红,制得的非沥青基非固化橡胶防水涂料具有优异的物理性能,与HDPE防水卷材具有优异的复合效果。

关键词：非沥青基非固化橡胶防水涂料涂卷复合 HDPE防水卷材相容性

Recent Development of Photodeformable Crystals:From Materials to Mechanisms

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Research 2021年第1期2021卷 1059-1084页

作者： Cheng Huang Rongjuan Huang Simin Zhang Haodong Sun hailan wang Beibei Du Yuxin Xiao Tao Yu Wei Huang Frontiers Science Center for Flexible Electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SIFE)&Shaanxi Institute of Biomedical Materials and Engineering(SIBME)Northwestern Polytechnical University(NPU)127 West Youyi RoadXi’an 710072China Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)30 South Puzhu RoadNanjing 211816China Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts and Telecommunications9 Wenyuan RoadNanjing 210023China

Photodeformable materials are a class of molecules that can convert photon energy into mechanical energy,which have attracted tremendous attention in the last few *** to their unique photoinduced deformable properties,including fast lightresponse and diverse mechanical behaviors,photodeformable materials have exhibited great potential in many practical applications such as actuators,photoswitches,artificial muscles,and *** this review,we sort out the current state of photodeformable crystals and classify them into six categories by molecular structures:diarylethenes,azobenzenes,anthracenes,olefins,triarylethylenes,and other *** distinct light-responsive mechanisms,photocyclization,trans-cis isomerization,and photodimerization,are revealed to play significant roles in the molecular *** corresponding photodeformable behaviors such as twisting,bending,hopping,bursting,and curling,as well as the potential applications,are also ***,the challenges and prospective development directions of photodeformable crystals are highlighted.

关键词： behaviors bending directions

种鸡场鸡毒支原体不同免疫程序抗体消长规律的研究

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家禽科学 2024年第1期46卷 23-27,I0007,I0008页

作者：张鹏丁爱君王怀娜来庆梅王海兰郭龙宗李玉燕山东益生种畜禽股份有限公司山东烟台265508

鸡毒支原体病(MG)是养殖场的常发病之一,随着种鸡规模化养殖的迅速发展、饲养密度增大,导致该病的感染率、发病率呈逐年上升趋势,目前该病成为影响鸡苗产品质量的重要疾病。疫苗免疫是肉种鸡场防控MG的较为普遍而且有效的方法。规模化... 详细信息

鸡毒支原体病(MG)是养殖场的常发病之一,随着种鸡规模化养殖的迅速发展、饲养密度增大,导致该病的感染率、发病率呈逐年上升趋势,目前该病成为影响鸡苗产品质量的重要疾病。疫苗免疫是肉种鸡场防控MG的较为普遍而且有效的方法。规模化养殖场常采用MG活苗和灭活疫苗结合的免疫程序,本研究跟踪评估某父母代种鸡群F-36株活苗+MG油苗、6/85株活苗+MG油苗、TS-11株活苗+MG油苗、TS-11株活苗四种不同免疫方式的抗体滴度,建立无MG野毒感染鸡群的正常抗体基线。

关键词：鸡毒支原体鸡慢性呼吸道病免疫程序抗体酶联免疫吸附试验

Fertilizer drawn forward osmosis as an alternative to 2nd pass seawater reverse osmosis: Estimation of boron removal and energy consumption

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Frontiers of Environmental Science & Engineering 2021年第6期15卷 433-445页

作者： hailan wang Baoyu Gao Li’an Hou Ho Kyong Shon Qinyan Yue Zhining wang Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityJinan 250100China School of Civil and Environmental Engineering University of TechnologySydney(UTS)Broadway NSW 2007Australia

Agriculture is the largest consumer of *** seawater is an important alternative water source for sustainable ***,some issues of the current desalination technology hinder its use for agriculture irrigation,including low boron removal and high energy *** study systematically explored the feasibility of employing fertilizer drawn forward osmosis(FDFO)as an alternative to 2nd pass reverse osmosis(RO)by considering the boron removal performance and specific energy consumption(SEC).Different operating conditions were investigated,such as the boron and NaCl concentrations in feed solution(FS),draw solution(DS)concentration,pH,the volume ratio of FS to DS,membrane orientation,flow rate,and operating *** results indicated that a low boron concentration in FS and high DS pH(pH=11.0)decreased the boron solute flux,and led to low final boron concentration in the *** other operating conditions had negligible influence on the final DS boron ***,a lower flow rate and higher specific water flux with certain permeate water volumes were conducive to reducing the SEC of the FDFO ***,our study paves a new way of using FDFO in irrigation,which avoids the phytotoxicity and human health risk of *** results show the potential of FDFO as an alternative to 2nd pass RO for irrigation water production.

关键词： Fertilizer drawn forward osmosis(FDFO) Boron removal Specific energy consumption(SEC) Seawater reverse osmosis(SWRO) Irrigation water production

A Wnt10a-Notch signaling axis controls Hertwig’s epithelial root sheath cell behaviors during root furcation patterning

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International Journal of Oral Science 2024年第3期16卷 425-435页

作者： Kai Sun Miao Yu Jiayu wang Hu Zhao Haochen Liu hailan Feng Yang Liu Dong Han Department of Prosthodontics Peking University School and Hospital of Stomatology&National Center for Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesBeijingChina Chinese Institute for Brain Research BeijingChina

Human with bi-allelic WNT10A mutations and epithelial Wnt10a knockout mice present enlarged pulp chamber and apical displacement of the root furcation of multi-rooted teeth,known as taurodontism;thus,indicating the critical role of Wnt10a in tooth root ***,the endogenous mechanism by which epithelial Wnt10a regulates Hertwig’s epithelial root sheath(HERS)cellular behaviors and contributes to root furcation patterning remains *** this study,we found that HERS in the presumptive root furcating region failed to elongate at an appropriate horizontal level in K14-Cre;Wnt10a^(fl/fl)mice from post-natal day 0.5(PN0.5)to *** assays and immunofluorescent staining of cyclin D1 revealed significantly decreased proliferation activity of inner enamel epithelial(IEE)cells of HERS in K14-Cre;Wnt10a^(fl/fl)mice at PN2.5 and *** staining of E-Cadherin and acetyl-α-Tubulin demonstrated that the IEE cells of HERS tended to divide perpendicularly to the horizontal plane,which impaired the horizontal extension of HERS in the presumptive root furcating region of K14-Cre;Wnt10a^(fl/fl)***-seq and immunofluorescence showed that the expressions of Jag1 and Notch2 were downregulated in IEE cells of HERS in K14-Cre;Wnt10a^(fl/fl)***,after activation of Notch signaling in K14-Cre;Wnt10a^(fl/fl)molars by Notch2 adenovirus and kidney capsule grafts,the root furcation defect was partially *** together,our study demonstrates that an epithelial Wnt10a-Notch signaling axis is crucial for modulating HERS cell proper proliferation and horizontal-oriented division during tooth root furcation morphogenesis.

关键词： Wnt10a Notch impaired