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多功能生物材料蛛丝蛋白的一级结构特征和生物合成进展

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生物工程学报 2024年第3期40卷 687-704页

作者：林宝杨熊永吉陈惠宇韦晟楠任芃芃成骋何冰芳南京工业大学生物与制药工程学院江苏南京211800 南京工业大学药学院江苏南京211800

蜘蛛丝是已知复合性能最强的天然纤维,兼具极高的抗拉伸强度与韧性,有着“生物钢”之美誉,且具有优良的生物相容性和形状记忆性能,在生物医药、组织工程等多个领域有着巨大的应用潜力。蜘蛛丝由一类富有结构多样性的高分子蛛丝蛋白所组... 详细信息

蜘蛛丝是已知复合性能最强的天然纤维,兼具极高的抗拉伸强度与韧性,有着“生物钢”之美誉,且具有优良的生物相容性和形状记忆性能,在生物医药、组织工程等多个领域有着巨大的应用潜力。蜘蛛丝由一类富有结构多样性的高分子蛛丝蛋白所组成,天然蛛丝蛋白基因GC含量高、重复核心区氨基酸序列高度重复、特定氨基酸含量高以及分子量大等特点给其异源表达带来了较大的困难。本文重点阐述了蛛丝蛋白重复单元中重复核心区特征基序与其结构、纺丝性能和异源表达之间的相关性。对重组蛛丝蛋白的序列进行优化设计,结合异源表达策略,极大地促进了多功能蛛丝蛋白生物合成的发展。本综述可为重组蛛丝蛋白的理性设计与高效合成提供思路。

关键词：重组蛛丝蛋白序列设计表达策略结构特征分类

Meta photonic crystal paper devices

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Science China(Technological Sciences) 2020年第11期63卷 2464-2466页

作者： GUO MaoZe WANG YuQiu HE bingfang GAO BingBing School of Pharmaceutical Sciences Nanjing Tech UniversityNanjing 211816China College of Biotechnology and Pharmaceutical Engineering Nanjing Tech UniversityNanjing 211816China

With its unique properties of thin,porous,flexible and affordable,paper has been widely used as a multifunctional material in daily life since its invention[1].Commonly,paper is the most popular carrier for information transmission such as writing and ***,since the applications of paper has been broadened continuously,it has also shown great prospect in the field of biochemical ana・***-based analytical devices are easy to use,low cost,portable and disposable,thus playing an important role in the field of rapid detection[2].

关键词： has since such

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白蛾周氏啮小蜂工厂化生产及应用进展

中国森林病虫 2024年第1期43卷 17-21页

作者：宋丽威杜陈勇刘白璐陈存彬徐炳芳温玄烨长春市净月潭实验林场吉林长春130031 扶沟县森林病虫防治检疫站河南扶沟461300 漯河市林业事务服务中心河南漯河462000 国家林业和草原局生物灾害防控中心辽宁沈阳110034

白蛾周氏啮小蜂Chouioia cunea是美国白蛾Hyphantria cunea的优势天敌。20世纪80年代初,我国开始对白蛾周氏啮小蜂的人工繁育技术进行系统研究,成功研发出以柞蚕Antheraea pernyi蛹为中间寄主的工厂化生产技术。笔者介绍白蛾周氏啮小蜂... 详细信息

白蛾周氏啮小蜂Chouioia cunea是美国白蛾Hyphantria cunea的优势天敌。20世纪80年代初,我国开始对白蛾周氏啮小蜂的人工繁育技术进行系统研究,成功研发出以柞蚕Antheraea pernyi蛹为中间寄主的工厂化生产技术。笔者介绍白蛾周氏啮小蜂工厂化生产及林间应用涉及的生产设备、生产工艺、释放技术及应用现状,提出研究天敌复合体、测试常用农药对白蛾周氏啮小蜂安全性和优化林间释放技术等建议,以期最大限度地优化白蛾周氏啮小蜂生产工艺,为提高繁育效率和防治效果提供理论支撑。

关键词：周氏啮小蜂工厂化生产生物防治美国白蛾

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红枣红曲复合啤酒酿造工艺条件优化及品质评价

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中国酿造 2024年第5期43卷 175-179页

作者：王娅楠王丽玲宋兵芳浦云峰石兵魏劫塔里木大学食品科学与工程学院南疆特色农产品深加工兵团重点实验室新疆阿拉尔843300 新疆格麦迪酒业股份有限公司新疆阿克苏843200

该研究以红曲米、红枣和大麦芽为原料,研制红枣红曲复合啤酒,通过单因素和正交试验对其发酵工艺进行优化,并对其品质指标进行检测。结果表明,红枣红曲复合啤酒最佳发酵工艺为:红曲米添加量2%,红枣浆添加量15%,酵母接种量0.8 g/L,发酵时... 详细信息

该研究以红曲米、红枣和大麦芽为原料,研制红枣红曲复合啤酒,通过单因素和正交试验对其发酵工艺进行优化,并对其品质指标进行检测。结果表明,红枣红曲复合啤酒最佳发酵工艺为:红曲米添加量2%,红枣浆添加量15%,酵母接种量0.8 g/L,发酵时间7 d,发酵温度15℃。在此优化发酵条件下,制得的红枣红曲复合啤酒酒精度为9.1%vol,pH为4.55,总糖含量为9.9°Bx,总酸含量为5.12%,色度为28.50EBC,1,1二苯基-2-三硝基苯肼(DPPH)自由基清除率为60.93%,泡持性为137 s,感官评分为93分,酒体色泽呈亮红色,澄清透亮,杀口性强,具有红枣独特的香味,符合相关国家标准要求。

关键词：红枣红曲米啤酒酿造工艺优化品质评价

A FLOOD DISASTER INFORMATION SYSTEM AND ITS APPLICATION

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Journal of Geographical Sciences 1992年第2期 51-57页

作者： Chen Shupeng Wu bingfang LREIS Institute of GeographyCAS

This paper describes the conceptual framework and design characteristics of creating a Flood Disaster Information System(FDIS),and its application experiences in *** includes three parts of spatial database,application oriented models and user interface,which are developed based on natural environmental *** landform feature in the study area is just one of the *** database should be updated in *** primary experiences in creating and using FDIS are in processing remotely sensed data and collecting statistic data to update the database before flood peak periods,and using airborne radar to monitor the flooded areas during flooding *** the 1991 flood disaster in China,the system and related techniques were used on Huaihe River of central China and Taihu Lake region of east China for tracing the flood process and evaluating the loss of flood damage timely.

关键词： flood disaster information system Taihu Lake region

Constructing a 30m African Cropland Layer for 2016 by Integrating Multiple Remote sensing,crowdsourced,and Auxiliary Datasets

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Big Earth Data 2022年第1期6卷 54-76页

作者： Mohsen Nabil Miao Zhang bingfang Wu Jose Bofana Abdelrazek Elnashar State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of Sciences(AIRCAS)BeijingChina College of Resources and Environment University of Chinese Academy of Sciences(UCAS)BeijingChina Division of Agriculture Applications Soilsand Marine(AASMD)National Authority for Remote Sensing&Space Sciences(NARSS)CairoEgypt Faculty of Agricultural Sciences Catholic University of MozambiqueCuambaMozambique Department of Natural Resources Faculty of African Postgraduate StudiesCairo UniversityGizaEgypt

Despite its essential importance to various spatial agriculture and environmental applications,the information on actual cropland area and its geographical distribution remain highly uncertain over Africa among remote-sensing *** of the African regions has its unique physical and environmental limiting factors to accurate cropland mapping,which leads to high spatial discre-pancies among remote sensing cropland *** no dataset could cope with all limitations,multiple datasets initially derived from various remote sensing sensors and classification techniques must be integrated into a more accurate cropland product than individual ***,in the current study,four cropland products,produced initially from multiple sensors(***-8 OLI,Sentinel-2 MSI,and PROBA-V)to cover the period(2015-2017),were integrated based on their cropland mapping accuracy to build a more accurate cropland *** four cropland layers’accuracy was assessed at Agro-ecological zones units via an inten-sive reference dataset(17,592 samples).The most accurate crop-land layer was then identified for each zone to construct the final cropland mask at 30 m resolution for the nominal year of 2016 over *** a result,the new layer was produced in higher cropland mapping accuracy(overall accuracy=91.64%and cropland’s F-score=0.75).The layer mapped the African cropland area as 282 Mha(9.38%of the Continent area).Compared to earlier crop-land synergy layers,the constructed cropland mask showed a considerable improvement in its spatial resolution(30 m instead of 250 m),mapping quality,and closeness to official statistics(R^(2)=0.853 and RMSE=2.85 Mha).The final layer can be down-loaded as described under the“Data Availability Statement”section.

关键词： Cropland mapping synergy mapping land cover accuracy assessment multisource data fusion

Electrochemical Reaction Mechanism of Phenacetin at a Carboxylated Multiwall Carbon Nanotube Modified Electrode and Its Analytical Applications

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Chemical Research in Chinese Universities 2014年第6期30卷 905-909页

作者： ZHANG Jinlei LAN Cuiling SHI bingfang LIU Fang ZHAO Dandan TAN Xuecai Department of Chemistry and Life Science Baise University Baise 533000 t~ R. China" School of Chemistry and Chemical Engineering Guangxi University for Nationalities Nanning 530008 P. R. China

A novel type of carboxylated multiwalled carbon nanotube modified electrode（c-MWCNTs/GCE） was constructed and the electrochemical properties of phenacetin（PHE） at it were studied. In a buffer solution of 0.1 mol/L HAc-NaAc（pH=5.3）, PHE exhibited a couple of quasi-reversible redox peaks and an anodic peak in the poten- tial range of 0.2--1.2 V at c-MWCNTs/GCE. The peak current was proportional to the concentration of PHE in the range of 4.0× 10^-6_ 1.0 × 10^-4 mol/L with a detection limit of 1.0× 10^-6 mol/L（S/N=3）. The c-MWCNTs/GCE showed excellent repeatability and stability and the electrochemical reaction mechanism of PHE was proposed. This method was used to determine the content of PHE in medical tablets and the recovery was determined to be 96.5%--104.2% by means of a standard addition method.

关键词： Carboxylated multiwalled carbon nanotube Modified electrode Phenacetin

Remote sensing-based global crop monitoring: experiences with China’s CropWatch system

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International Journal of Digital Earth 2014年第2期7卷 113-137页

作者： bingfang Wu Jihua Meng Qiangzi Li Nana Yan Xin Du Miao Zhang Institute of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijingChina

Monitoring the production of main agricultural crops is important to predict and prepare for disruptions in food supply and fluctuations in global crop market ***’s global crop-monitoring system(CropWatch)uses remote sensing data combined with selected field data to determine key crop production indicators:crop acreage,yield and production,crop condition,cropping intensity,crop-planting proportion,total food availability,and the status and severity of *** are combined to analyze the balance between supply and demand for various food crops and if needed provide early warning about possible food *** data processing is highly automated and the resulting products provide new kinds of inputs for food security *** paper presents a comprehensive overview of CropWatch as a remote sensingbased system,describing its structure,components,and monitoring *** paper also presents examples of monitoring results and discusses the strengths and limitations of the CropWatch approach,as well as a comparison with other global crop-monitoring systems.

关键词： CropWatch crop monitoring remote sensing crop production

工业装置蒽醌加氢钯催化剂活性下降原因分析及处理措施探讨

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化学推进剂与高分子材料 2024年第5期22卷 17-21,49页

作者：杨盟飞毛义田李帅超刘冰放冯彬白立光赵晓东黎明化工研究设计院有限责任公司河南洛阳471000 山东恒通化工股份有限公司山东郯城276100

简单介绍了过氧化氢生产工艺,重点介绍了可能造成钯催化剂活性下降的原因,如工作液水分高、氧化铝粉覆盖、钯催化剂结块等,通过增加工作液除水设备、增加活性氧化铝旁滤系统、使用高性能钯催化剂等工艺调整措施,可以使钯催化剂活性逐渐... 详细信息

简单介绍了过氧化氢生产工艺,重点介绍了可能造成钯催化剂活性下降的原因,如工作液水分高、氧化铝粉覆盖、钯催化剂结块等,通过增加工作液除水设备、增加活性氧化铝旁滤系统、使用高性能钯催化剂等工艺调整措施,可以使钯催化剂活性逐渐恢复。

关键词：过氧化氢蒽醌法钯催化剂活性下降