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食品工业科技 2008年第5期29卷 77-79页

作者：李芳良童张法麻昌爱南宁地区教育学院理工系广西南宁530001 广西大学化学化工学院广西南宁530004

采用计算机辅助回归正交设计的方法,对交联氧化淀粉的制备工艺进行了研究,通过回归正交设计,获得了相应的数学模型,预测出最佳工艺参数,并通过实验进行了验证。

关键词：回归正交设计交联氧化木薯淀粉制备

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微波辐射相转移催化合成十二烷基缩水甘油醚

化学试剂 2005年第1期27卷 54-56页

作者：农兰平李芳良王志辉茂名学院化工学院广东茂名525000 南宁地区教育学院化学系广西南宁530001

采用微波辐射技术,以四丁基溴化铵为相转移催化剂催化合成了十二烷基缩水甘油醚,研究了微波功率、辐射时间、反应物配比对反应产物收率的影响。实验结果表明,适当的微波辐射可以加速十二烷基缩水甘油醚的合成反应,而且产率高,操作简便。

关键词：十二烷基缩水甘油醚微波辐射相转移催化合成

Double [5]carbohelicene: facile synthesis, chiroptical properties,isomerization study, and lasing application

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Science China Chemistry 2025年第1期 233-240页

作者： Peipei liu Yantong li Meng-Xiang Wu Hao Kang Xiao-li Zhao lin Xu linlin liu Xiaodong li Junfeng fang Zhiwei fang Ya Cheng Hai-Bo Yang Huakang Yu Xueliang Shi State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University School of Physics and Optoelectronics South China University of Technology Institute of Polymer Optoelectronic Materials & Devices State Key Laboratory of Luminescent Materials & Devices South China University of Technology School of Physics and Electronic Science Engineering Research Center of Nanophotonics & Advanced Instrument Ministry of EducationEast China Normal University State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University

Double carbohelicenes have attracted considerable attention due to their aesthetic structures, distinct π-conjugation extension, inherent chirality, and intriguing optical and electronic properties. Herein, the concise de novo synthesis of a new double[5]carbohelicene 1 together with its chiroptical properties, isomerization process and lasing application is presented. 1 was synthesized by a simple protocol involving the formation of a 6,6′-bipentacene as the key intermediate. It is worth noting that1 existed as two diastereomers 1-PP/MM and 1-PM, which were successfully isolated and unambiguously confirmed by Xray crystallography. The optical resolution of the racemic 1-PP/MM was successfully achieved by chiral-phase highperformance liquid chromatography（HPLC）, and 1-PP and 1-MM were characterized by circular dichroism. Interestingly, it was found that 1-PP/MM could be completely isomerized to 1-PM upon heating, and the detailed thermodynamics and kinetics of the isomerization process were systematically investigated. 1-PM exhibited deep-red luminescence with emission maximum at 723 nm and fluorescence quantum yield as high as 32.95%. Consequently, we can showcase the lasing application of 1-PM by doping with epoxy resin to assemble a bottle microlaser spontaneously, which the lasing wavelength is 796.6 nm at a threshold of 0.8 m J cm-2. We believe that our studies, including the facile synthesis methodology, detailed isomerization studies, and lasing application, will shed some light on the design and synthesis of novel carbohelical systems with more functions.

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Deciphering the role of mtH2O2 in hepatic ischemia-reperfusion injury mechanisms with low-background super-resolution fluorogenic probe

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Science China Chemistry 2025年第01期 297-307页

作者： Bin fang limin Wang Haoqin li Jiaxin Zhang Yang Ding Pan Pan li Bo Peng Hua Bai lin li Frontiers Science Center for Flexible Electronics Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials &Engineering Northwestern Polytechnical University Institute of Flexible Electronics (IFE Future Technologies) Xiamen University

Hepatic ischemia-reperfusion injury（HIRI） is characterized by mitochondrial dysfunction and oxidative stress. Monitoring mitochondrial hydrogen peroxide（mtH2O2） levels in real-time through super-resolution imaging is crucial for elucidating its distribution in live cells and its mechanism of action during HIRI. However, low-background fluorogenic probes have been overlooked in the context of super-resolution imaging. In this study, we developed a low-background fluorogenic probe（MitoWG） with the potential for super-resolution morphology-correlated mitochondrial identification to track the fluctuates of mtH2O2in HIRI. Activation of the desirable fluorescence properties of the probe by mtH2O2was confirmed using structural illumination microscopy（SIM）, enabling high-quality mitochondrial imaging with exceptional specificity and *** in mtH2O2levels were successfully observed in both cellular and rat models of HIRI. Furthermore, we associated the decline in mitochondrial redox homeostasis with accelerated mtH2O2production during HIRI, which triggered mitophagy deficiency and led to cell death. In conclusion, Mito-WG possesses excellent photophysical and low-background properties for SIM imaging, making it a promising tool for mtH2O2tracking in HIRI research and clinical diagnosis.

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氮素浓度和水分对水稻土硝化作用和微生物特性的影响

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中国生态农业学报 2012年第9期20卷 1113-1118页

作者：栗方亮李忠佩刘明江春玉中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室南京210008 中国科学院研究生院北京100049

为了明确不同氮素浓度和水分对土壤硝化作用和微生物特性的影响,特别是高氮素浓度下的响应特异性,以红壤水稻土为供试土壤,设置4个硫铵用量水平[0(CK)、120 mg(N).kg-1(A1)、600 mg(N).kg-1(A2)、1 200 mg(N).kg-1(A3)],调节土壤水分为... 详细信息

为了明确不同氮素浓度和水分对土壤硝化作用和微生物特性的影响,特别是高氮素浓度下的响应特异性,以红壤水稻土为供试土壤,设置4个硫铵用量水平[0(CK)、120 mg(N).kg-1(A1)、600 mg(N).kg-1(A2)、1 200 mg(N).kg-1(A3)],调节土壤水分为饱和持水量(WHC)的40%、60%和80%,研究了短期内不同氮素浓度和不同水分条件下土壤硝化作用、微生物生物量碳和微生物功能多样性的变化。结果表明:在40%、60%和80%WHC水分条件时,硫铵A2、A3浓度处理土壤硝化率和硝化速率普遍较低,硫铵A1浓度处理硝化率和硝化速率随土壤含水量的升高而升高;同含水量时随硫铵用量的升高而显著降低。在40%、60%和80%WHC水分条件时,微生物生物量碳随硫铵浓度的升高而降低;同浓度硫铵用量水平时,微生物生物量碳的变化基本表现为:60%WHC>80%WHC>40%WHC。分析发现不同水分和硫铵处理之间存在交互作用。BIOLOG分析显示:不同氮素浓度和不同水分处理,60%WHC下A1处理的平均吸光值(AWCD)和Shannon、Simpson、McIntosh指数最大,其次为60%WHC的硫铵CK处理,而不同水分下硫铵A2、A3处理,其AWCD值和Shannon、Simpson、McIntosh多样性指数都较低,进一步说明过量施肥导致微生物活性降低。不同氮素浓度和水分条件下土壤微生物和生化性状不同,过量施用化肥后将有可能造成土壤微生物性状和生化功能衰减。

关键词：土壤水分硫铵用量硝化作用微生物生物量微生物群落特征

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求解浅水流动的分步有限元方法

水动力学研究与进展（A辑） 2004年第4期19卷 475-483页

作者：江春波梁东方李玉梁清华大学水利水电工程系北京100084

　本文将分步有限元的计算方法引入到浅水方程组的求解中。该方法起源于Taylor Galerkin(T G)方法,但数值稳定性优于T G法并具有三阶精度。由于计算中没有引入高阶的空间导数项,实现起来比Taylor Galerkin方法简单,适用于非线性和多维... 详细信息

　本文将分步有限元的计算方法引入到浅水方程组的求解中。该方法起源于Taylor Galerkin(T G)方法,但数值稳定性优于T G法并具有三阶精度。由于计算中没有引入高阶的空间导数项,实现起来比Taylor Galerkin方法简单,适用于非线性和多维问题的求解。计算模型中包含了零方程和双方程的紊流模型,可以根据需要选择。文中详细介绍了初始和边界条件的取法,并通过五个算例验证了计算模型的可靠性。

关键词：分步有限元浅水流动紊流模型

响应面分析法对黑绿豆水溶性多糖提取工艺的优化

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贵州农业科学 2011年第12期39卷 220-222,225页

作者：李芳亮高杨孙延芳赵立冬赵颖王锐辽宁工程技术大学理学院辽宁阜新123000 辽宁省阜新市科技局辽宁阜新123000

为了优化黑绿豆水溶性多糖(WPBM)的提取工艺,利用Box-Benhnken中心组合设计原理和响应面分析法,在单因素试验基础上,以WPBM提取率为响应值,选取液料比、提取时间和提取温度等3因素,研究各因素及其交互作用对WPBM提取率的影响。结果显示:... 详细信息

为了优化黑绿豆水溶性多糖(WPBM)的提取工艺,利用Box-Benhnken中心组合设计原理和响应面分析法,在单因素试验基础上,以WPBM提取率为响应值,选取液料比、提取时间和提取温度等3因素,研究各因素及其交互作用对WPBM提取率的影响。结果显示:WPBM的最佳提取条件为液料比48mL/g、提取温度87℃、提取时间97min,在此条件下,黑绿豆WPBM实际提取率16.004%,与理论预测值(16.226%)的相对误差仅为1.37%。

关键词：多糖黑绿豆响应面提取工艺

Efficient and Stable Photoassisted lithium‑Ion Battery Enabled by Photocathode with Synergistically Boosted Carriers Dynamics

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Nano-Micro Letters 2025年第3期17卷 440-454页

作者： Zelin Ma Shiyao Wang Zhuangzhuang Ma Juan li Luomeng Zhao Zhihuan li Shiyuan Wang Yazhou Shuang Jiulong Wang fang Wang Weiwei Xia Jie Jian Yibo He Junjie Wang Pengfei Guo Hongqiang Wang State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi’an 710072People’s Republic of China State Key Laboratory of Solidification Processing School of Materials Science and Engineering DepartmentNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China Research and Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518063People’s Republic of China Key Laboratory of Applied Surface and Colloid Chemistry Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringNational Ministry of EducationShaanxi Normal UniversityXi’an 710119People’s Republic of China

Efficient and stable photocathodes with versatility are of significance in photoassisted lithium-ion batteries(PliBs),while there is always a request on fast carrier transport in electrochemical active *** work proposes a general approach of creating bulk heterojunction to boost the carrier mobility of photocathodes by simply laser assisted embedding of plasmonic *** employed in PliBs,it was found effective for synchronously enhanced photocharge separation and transport in light charging ***,experimental photon spectroscopy,finite difference time domain method simulation and theoretical analyses demonstrate that the improved carrier dynamics are driven by the plasmonic-induced hot electron injection from metal to TiO_(2),as well as the enhanced conductivity in TiO2 matrix due to the formation of oxygen vacancies after Schottky *** from these merits,several benchmark values in performance of TiO2-based photocathode applied in PliBs are set,including the capacity of 276 mAh g^(−1)at 0.2 A g^(−1)under illumination,photoconversion efficiency of 1.276%at 3 A g^(−1),less capacity and Columbic efficiency loss even through 200 *** results exemplify the potential of the bulk heterojunction strategy in developing highly efficient and stable photoassisted energy storage systems.

关键词： Photoassisted lithium-ion batteries Bulk heterojunction Carrier dynamics TiO2 nanofiber Plasmonic metal nanocrystals

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和谐社会中建筑与自然环境的关系

中外建筑 2007年第5期 67-68页

作者：李方良杨勇湖南省泰格林纸集团技术中心

无论是在遥远的古代还是在科技空前发展的今天,建筑可以取代自然环境而成为现代人类生活的庇护者,却不能改变人类对自然界的依赖。环境是发展的自身要素之一,发展一旦破坏了人类生存的物质环境就不能持续发展了。

关键词：自然环境和谐发展水乳交融

褐蘑菇提取物对四氧嘧啶型糖尿病小鼠降血糖活性研究

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天然产物研究与开发 2010年第2期22卷 323-325页

作者：刘莹刘政黄静李芳亮辽宁工程技术大学理学院辽宁阜新123000

本文通过对褐蘑菇提取物的降血糖作用研究,旨在开发降血糖药物新资源。试验数据显示褐蘑菇提取物能显著降低四氧嘧啶所制备的糖尿病小鼠血糖浓度。褐蘑菇提取物高、中、低剂量组对糖尿病小鼠的降糖率分别是16.9%,20.2%和15.1%.阳性对照... 详细信息

本文通过对褐蘑菇提取物的降血糖作用研究,旨在开发降血糖药物新资源。试验数据显示褐蘑菇提取物能显著降低四氧嘧啶所制备的糖尿病小鼠血糖浓度。褐蘑菇提取物高、中、低剂量组对糖尿病小鼠的降糖率分别是16.9%,20.2%和15.1%.阳性对照组的降糖率是25.1%.褐蘑菇提取物中剂量组降糖效果要优于高、低剂量组。

关键词：褐蘑菇提取物降血糖糖尿病