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Removal of phenol by Isochrysis galbana in seawater under varying temperature and light intensity

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Journal of Oceanology and Limnology 2020年第3期38卷 773-782页

作者： LI Hao MENG Fanping WANG Yuejie lin yufei Key Laboratory of Marine Environment and Ecology Ministry of EducationQingdao 266100China College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China National Marine Hazard Mitigation Service Ministry of Natural Resources of the People’s Republic of ChinaBeijing 100194China

Phenol is a common industrial chemical produced and transported worldwide ***,accidental spillage of phenol in the ocean causes an increasing *** are promising to remove phenol from marine ***,temperature and light intensity are two main factors that markedly influence biodegradation in marine *** this study,a marine golden alga Isochrysis galbana is selected to research the removal of phenol under different temperatures(10-30℃)and light intensities(0-240μmol/(m^2·s)).The results show that the most suitable temperature and light intensity for phenol removal are 20℃and 180μmol/(m2·s),respectively,and 100 mg/L of phenol can be completely removed by microalga in 24 h at these *** can also remove phenol under dark and low-temperature *** removal of phenol by *** at diverse temperatures and light intensities conform to first-order kinetics,and the process under dark conditions conform to zero-order ***,*** can be used in the in-situ bioremediation of polluted seawater by phenol.

关键词： phenol Isochrysis galbana temperature light intensity biodegradation

Online Probabilistic Assessment of Operating Safety for Multi-mode Engineering Systems based on Bayesian methods

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Online Probabilistic Assessment of Operating Safety for Mult...

Design and feasibility analysis of a graded harvesting end-effector with the function of soluble solid content estimation

第25届中国控制与决策会议

作者： yufei lin Maoyin Chen Donghua Zhou Department of Automation Tsinghua University

ISBN: (纸本)9781467355339

Operating safety has become more and more important in today’s engineering systems, since the systems become more and more complex. And it is crucial to develop strategies for online operating safety assessment. Although there have been some studies and researches on operating safety assessment, online assessment has not yet been paid sufficient attention, especially for multi-mode engineering systems. This paper proposes a probabilistic framework of online operating safety assessment for multi-mode engineering systems. First, a Gaussian mixture model （GMM） is used to characterize multiple operating modes. Then, based on a kind of definition of safety index （SI）, the SI for one single mode is calculated. A Bayesian method is then presented to calculate the posterior probabilities belonging to each operating mode with consideration of sample dependency.

关键词： Safety assessment Multi-mode engineering systems Bayesian method

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International Journal of Agricultural and Biological Engineering 2024年第5期17卷 239-246页

作者： yufei lin Hao Liang Junhua Tong Haoyu Shen Xiaping Fu Chuanyu Wu College of Mechanical Engineering Zhejiang Sci-Tech UniversityHangzhou 310018China Department of Agriculture and Biotechnology Wenzhou Vocational College of Science and TechnologyWenzhou 325006ZhejiangChina College of Mathematics and Computer Science Zhejiang A&F UniversityHangzhou 311300China Zhejiang Ocean University Zhoushan 316002ZhejiangChina

In response to the prevailing scarcity of labor and with the aim of augmenting the proportion of premium-quality fruits, a robotic grading end-effector system for harvesting was meticulously designed. The end-effector could measure the soluble solid content (SSC) of peaches during the harvesting process to evaluate the quality of the fruit, thereby facilitating real-time grading during harvesting. As comprising a harvesting component and an information-gathering segment, the end-effector system was optimized with the primary structural parameters of its adaptive fingers using a mathematical model of peach morphology. Also, the buffering materials for mitigating the pressure exerted by the adaptive fingers on the peaches were compared. Furthermore, feasibility analyses of the grasping actions were conducted based on the interaction forces between the adaptive fingers and the peaches. To grade the quality of peaches, SSC was used as an indicator to assess and grade the quality of the peaches. The spectra of peaches within the wavelength range of 590-1100 nm were collected, and a predictive model for SSC was developed. The correlation coefficients for the calibration set and prediction sets of the predictive model were 0.880 and 0.890, with corresponding root mean square errors of 0.370% and 0.357% Brix, respectively. In addition, a robustness and accuracy assessment was conducted using 30 peach samples, yielding a correlation coefficient of 0.936 and a standard error of 0.386% Brix between the predicted and measured values of SSC. The results confirm that the end-effector can measure the SSC of peaches during the collection process, providing novel concepts and theoretical foundations for real-time harvesting and grading.

关键词： robot harvesting graded end-effector soluble solids near-infrared spectroscopy

Application on Historical Sitcoms in Practical Teaching of the "Outline of Modern Chinese History"

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Application on Historical Sitcoms in Practical Teaching of t...

microRNAs-powerful repression comes from small RNAs

作者： yufei lin College of Marxism Bohai University

In order to give play to the important role of historical sitcoms in the practical teaching of the course of Outline of Modern Chinese History, this paper analyzes the current status of practical teaching of the Outline of Modern Chinese History and put forward the application process and application countermeasures. The application process includes: preliminary preparation, writing and creation, role assignment, and rehearsal performance. Applied countermeasures include: grasping the balance between "emotion" and "reason" in historical sitcoms, improving students’ ability to use and express historical knowledge, setting problems to guide teaching activities after historical sitcoms, and giving full play to the education of ideological and the human function of political education courses, adherence to the principle of moderation and integration with other teaching methods.

关键词： historical sitcoms outline of modern Chinese history practical teaching application countermeasures

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Science China(Life Sciences) 2009年第4期52卷 323-330页

作者： MA Cong, LIU yufei & HE lin 535 LSA, Division of Cell and Developmental Biology, MCB Department, University of California at Berkeley, Berkeley, CA 94720-3200 535 LSA Division of Cell and Developmental Biology MCB Department University of California at Berkeley Berkeley CA 94720-3200 USA

microRNAs (miRNAs) encode a novel class of small, non-coding RNAs that regulate gene expression post-trancriptionally. miRNAs comprise one of the major non-coding RNA families, whose diverse bio- logical functions and unusual capacity for gene regulation have attracted enormous interests in the RNA world. Over the past 16 years, genetic, biochemical and computational approaches have greatly shaped the growth of the field, leading to the identification of thousands of miRNA genes in nearly all metazoans. The key molecular machinery for miRNA biogenesis and silencing has been identified, yet the precise biochemical and regulatory mechanisms still remain elusive. However, recent findings have shed new light on how miRNAs are generated and how they function to repress gene expression. miRNAs provide a paradigm for endogenous small RNAs that mediate gene silencing at a genome-wide level. The gene silencing mediated by these small RNAs constitutes a major component of gene regu- lation during various developmental and physiological processes. The accumulating knowledge about their biogenesis and gene silencing mechanism will add a new dimension to our understanding about the complex gene regulatory networks.

关键词： miRNA RNAi gene silencing mRNA degradation

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基于分束器的光学偏振保真传输

华东师范大学学报（自然科学版） 2024年第4期 47-56页

作者：林雨菲谢微华东师范大学精密光谱科学与技术国家重点实验室上海200241

光的偏振作为光的基本禀性之一,在光信号获取分析应用中至关重要.光学分束器作为搭建探测光路/光学系统的常规元件,其对光偏振信息的保真传输效果会极大地影响整个探测系统的偏振检测能力.通过光学透反射理论分析,基于光学分束器设计出... 详细信息

光的偏振作为光的基本禀性之一,在光信号获取分析应用中至关重要.光学分束器作为搭建探测光路/光学系统的常规元件,其对光偏振信息的保真传输效果会极大地影响整个探测系统的偏振检测能力.通过光学透反射理论分析,基于光学分束器设计出了同时满足反射保偏和透射保偏功能的光路.实验证明该光路的偏振保真度高达95%以上.此光路设计方案具有成本低、调节灵活、功能性强等特点,为偏振光的分析和应用提供了更多的可能性.

关键词：光学分束器偏振信息光路设计

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模糊三支概念簇的理论与实践

重庆邮电大学学报（自然科学版） 2023年第1期35卷 40-48页

作者：徐伟华林玉飞西南大学人工智能学院重庆400039

三支概念簇刻画的是具有家族相似性的三支概念集合。三支概念簇中的三支概念包含了对象共同具有和共同不具有的属性,但三支概念不能表达模糊的信息,不能解决模糊形式背景下的问题。将模糊三支概念分析和现代范畴理论相结合,提出了模糊... 详细信息

三支概念簇刻画的是具有家族相似性的三支概念集合。三支概念簇中的三支概念包含了对象共同具有和共同不具有的属性,但三支概念不能表达模糊的信息,不能解决模糊形式背景下的问题。将模糊三支概念分析和现代范畴理论相结合,提出了模糊三支概念簇;讨论了模糊三支概念簇的基本性质和运算方法;提出了一个在模糊形式背景下利用模糊三支概念簇查找相似对象的算法,将所提出的算法应用到新型冠状病毒感染疑似病例检索,取得了符合实际的实验结果。经过分析可知,模糊三支概念簇的应用场景更加广泛。

关键词：三支概念簇现代范畴理论模糊三支概念分析信息检索模糊三支概念簇

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清代中后期女袄结构比例解析

丝绸 2019年第5期56卷 73-78页

作者：林郁菲吴继辉范莉北京服装学院服装艺术与工程学院北京100029

为探究清代汉族女袄的结构比例规律,以北京服装学院民族服饰博物馆馆藏28件清代中后期女袄藏品实物为研究对象,选取1件对收藏标本进行系统化测量与结构图复原,选取27件对收藏标本进行图像、数据资料综合整理,对上述28件标本进行结构比... 详细信息

为探究清代汉族女袄的结构比例规律,以北京服装学院民族服饰博物馆馆藏28件清代中后期女袄藏品实物为研究对象,选取1件对收藏标本进行系统化测量与结构图复原,选取27件对收藏标本进行图像、数据资料综合整理,对上述28件标本进行结构比例的归纳分析,结果表明:在女袄整体廓形比例中黄金分割比例(1︰1.618)、■、■、2︰3比例应用较多;在女袄衣身比例中■和1︰1比例应用较多;在女袄袖部比例中3︰7、9︰16、1︰1.618比例应用较多。研究表明:服装设计是整体考虑的,经典女袄这一传统服装的美遵循一定内在结构的比例规则。

关键词：清代中后期女袄结构比例形制特点服装设计

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对杉本博司《剧院》中摄影哲学的思考

艺术科技 2022年第20期35卷 145-148页

作者：林玉菲上海大学上海200040

技术性影像的发明使人类文化发生了重大转折,人类甚至仍然处于经历的过程中。摄影早已不再是一种单纯的技术手段,而成为一种复杂的艺术形式。杉本博司将摄影实践提升到了意识的层面,他的摄影作品不仅仅是影像,还包含了哲学性的思考。文... 详细信息

技术性影像的发明使人类文化发生了重大转折,人类甚至仍然处于经历的过程中。摄影早已不再是一种单纯的技术手段,而成为一种复杂的艺术形式。杉本博司将摄影实践提升到了意识的层面,他的摄影作品不仅仅是影像,还包含了哲学性的思考。文章主要研究杉本博司《剧院》系列的创作背景及哲学思想,并分析其给人们带来的思考和启示。

关键词：摄影哲学技术与艺术杉本博司