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微波裂解废菌袋生物油的稳定性研究

可再生能源 2014年第4期32卷 493-498页

作者：赖志彬王宇迪王质斌王静李麒龙 Roger Ruan 林向阳福州大学生物科学与工程学院福建福州350108 南昌大学生物质转化教育部工程研究中心江西南昌330047 Department of Bioproducts and biosystems engineering University of Minnesota St. PaulMN 55108USA

文章对废菌袋快速微波裂解制取的生物油进行了储存稳定性试验研究,对在不同存储期和不同存储条件下的生物油进行理化性质评价,并采用气质联用技术对其进行定量分析。经过储存后的生物油的水分、黏度和残渣率均有提高,酸性增强,芳香度增... 详细信息

文章对废菌袋快速微波裂解制取的生物油进行了储存稳定性试验研究,对在不同存储期和不同存储条件下的生物油进行理化性质评价,并采用气质联用技术对其进行定量分析。经过储存后的生物油的水分、黏度和残渣率均有提高,酸性增强,芳香度增加。GC-MS分析表明,生物油储存过程中酚类和芳香杂环类化合物含量增加,醇类、酮类、有机酸和酯类化合物含量均有提高。

关键词：生物油储存稳定性微波裂解

Selenium containing macrocycles:transformation between Se-N/Se-S/Se-Se bonds

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Science China Chemistry 2017年第9期60卷 1191-1196页

作者： Shaobo Ji Hicham El Mard Mario Smet Wim Dehaen Huaping Xu Key Laboratory of Organic Optoelectronics and Molecular engineering Department of ChemistryTsinghua UniversityBeijing 100084China Department of Chemistry University of LeuvenCelestijnenlaan 20OFB-3001 Heveriee(Leuven)Belgium

Macrocycles possess potential applications in supramolecular chemistry and biosystems. Thus development of new kinds of macrocycles is of significance. Herein, novel macrocycles containing Se-Se/Se-S bonds were synthesized via transformation between selenium related dynamic covalent bonds. A monomer containing two ebselen moieties was synthesized (M1). The Se-N bonds in M1 were reduced by dithiothreitol, forming Se-S linked dimer (D1). To realize the transformation from Se-S bonds to Se-Se bonds, guest molecules were added as template, triggering the formation of Se-Se linked dimer (D2). The formation of these two new kinds of macrocycles was determined by H-1 NMR and Se-77 NMR, and the necessity of guest molecules was also confirmed. The introduction of ebselen moieties and Se-S bonds or Se-Se bonds into macrocycles may endow it with new responsiveness and bioactivities, as well as new types of host-guest chemistry.

关键词： macrocycles, selenium, dynamic covalent bonds

Cell-type continuous electromagnetic radiation system generating millimeter waves for active denial system applications

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Defence Technology（防务技术） 2022年第10期18卷 1895-1913页

作者： Sun-Hong Min Ohjoon Kwon Matlabjon Sattorov Seontae Kim In-Keun Baek Seunghyuk Park Ranjan Kumar Barik Anirban Bera Dongpyo Hong Seonmyeong Kim Bong Hwan Hong Chawon Park Sukhwal Ma Minho Kim Kyo Chul Lee Yong Jin Lee Han Byul Kwon Young Joon Yoo Sang Yoon Park Gun-Sik Park Korea Institute of Radiological and Medical Sciences(KIRAMS) Seoul01812South Korea Institute for Basic Science Center for Axion and Precision Physics ResearchDaejeon34141South Korea Center for THz-Driven Biomedical Systems Department of Physics and AstronomyCollege of Natural SciencesSeoul National UniversitySeoul08826South Korea Center for Applied Electromagnetic Research Advanced Institute of Convergence TechnologySuwonGyeonggi-do16229South Korea R&D Department Seoul-TeracomInc.Suwon16229South Korea Mechatronics R&D Center Samsung Electronics Co.Ltd.Hwasung18448South Korea Hanwha Corporation Gumi730-030South Korea Council of Scientific and Industrial Research Central Electronics Engineering Research InstitutePilani333031India Home Economics Education/biosystems and Biomedical Sciences Korea UniversitySeoul02841South Korea Current affiliation of Seontae Kim:Young IN ACE 1 F60Anyangcheondong-roDongan-guAnyang-siGyeonggi-do14042South Korea.

The cell-type continuous electromagnetic radiation system is a demonstration device capable of generating high-power millimeter electromagnetic waves of a specific wavelength and observing their effects on living *** irradiates a biological sample placed in a 30×30×50 cm^(3)cell with electromagnetic waves in the 3.15-mm-wavelength region(with an output of≥1 W)and analyzes the temperature change of the sample.A vacuum electronic device-based coupled-cavity backward-wave oscillator converts the electron energy of the electron beam into radiofrequency(RF)energy and radiates it to the target through an antenna,increasing the temperature through the absorption of RF energy in the *** system causes pain and ultimately reduces combat power.A cell-type continuous electromagnetic radiation system consisting of four parts—an electromagnetic-wave generator,a highvoltage power supply,a test cell,and a system controller—generates an RF signal of≥1 W in a continuous waveform at a 95-GHz center frequency,as well as a chemical solution with a dielectric constant similar to that of the skin of a living *** increase of 5°C lasting approximately 10 s was confirmed through an experiment.

关键词： Millimeter waves Terahertz waves Coupled-cavity backward wave oscillator(CCBWO) Cell-type continuous electromagnetic radiation Active denial system(ADS) Directed-energy weapon(DEW)

Kinematic and Aerodynamic Modelling of Bi- and Quad-Wing Flapping Wing Micro-Air-Vehicle

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Advances in Aerospace Science and Technology 2016年第3期1卷 83-101页

作者： Harijono Djojodihardjo Alif Syamim S. Ramli Surjatin Wiriadidjaja Azmin Shakrine Mohd Rafie Aerospace engineering Department Faculty of Engineering Universiti Putra Malaysia Serdang Malaysia

A generic approach to model the kinematics and aerodynamics of flapping wing ornithopter has been followed, to model and analyze a flapping bi- and quad-wing ornithopter and to mimic flapping wing biosystems to produce lift and thrust for hovering and forward flight. Considerations are given to the motion of a rigid and thin bi-wing and quad-wing ornithopter in flapping and pitching motion with phase lag. Basic Unsteady Aerodynamic Approach incorporating salient features of viscous effect and leading-edge suction are utilized. Parametric study is carried out to reveal the aerodynamic characteristics of flapping bi- and quad-wing ornithopter flight characteristics and for comparative analysis with various selected simple models in the literature, in an effort to develop a flapping bi- and quad-wing ornithopter models. In spite of their simplicity, results obtained for both models are able to reveal the mechanism of lift and thrust, and compare well with other work.

关键词： Bi-Wing Ornithopter Flapping Wing Aerodynamics Flapping Wing Ornithopter Micro Air Vehicle Quad-Wing Ornithopter

深黄伞形霉与黑曲霉混合固态发酵麸皮积累油脂

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工业微生物 2022年第2期52卷 17-24页

作者：郑潇冯豪于洁王子硕周化岚 Sarman Oktovianus Gultom 张建国上海理工大学健康科学与工程学院食品科学与工程研究所上海200093 Department of Agricultural and biosystems engineering Papua University Manokwari Papua Barat Indonesia

深黄伞形霉是一种富油丝状真菌,油脂含量可达86%。并且深黄伞形霉油脂中富含油酸,亚油酸和γ-亚麻油酸等不饱和脂肪酸。黑曲霉是食品安全性好的工业微生物菌株,可高效产出纤维素酶、纤维二糖酶、木聚糖酶、淀粉酶、糖化酶、果胶酶等多种... 详细信息

深黄伞形霉是一种富油丝状真菌,油脂含量可达86%。并且深黄伞形霉油脂中富含油酸,亚油酸和γ-亚麻油酸等不饱和脂肪酸。黑曲霉是食品安全性好的工业微生物菌株,可高效产出纤维素酶、纤维二糖酶、木聚糖酶、淀粉酶、糖化酶、果胶酶等多种酶,用来水解多种食品废弃物。因此将深黄伞形霉和黑曲霉混合以麸皮为底物进行固态发酵,促进麸皮中糖的释放以及油脂产量的提高,并且优化了固态发酵的条件,结果表明固态发酵的最适初始水分含量为75%、最适接菌量为107 CFU/g麸皮、最适孢龄为7 d、最适菌种比例为黑曲霉∶深黄伞形霉=1∶1,在此条件下可获得59.04 mg/g麸皮的油脂产量。本研究为利用生物质积累油脂提供了思路。

关键词：深黄伞形霉黑曲霉固态发酵油脂产量脂肪酸

Integrated analysis of high-throughput sequencing data shows abscisic acidresponsive genes and miRNAs in strawberry receptacle fruit ripening

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Horticulture Research 2019年第1期6卷 1583-1595页

作者： Dongdong Li Wangshu Mou Rui Xia Li Li Christopher Zawora Tiejin Ying Linchun Mao Zhongchi Liu Zisheng Luo College of biosystems engineering and Food Science Key Laboratory of Agro-Products Postharvest Handling Ministry of Agriculture and Rural AffairsZhejiang Key Laboratory for Agri-Food ProcessingZhejiang University310058 HangzhouP.R.China Department of Cell Biology and Molecular Genetics University of MarylandCollege ParkMD 20742USA State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources South China Agricultural University510642 GuangzhouP.R.China

The perception and signal transduction of the plant hormone abscisic acid(ABA)are crucial for strawberry fruit ripening,but the underlying mechanism of how ABA regulates ripening-related genes has not been well *** employing high-throughput sequencing technology,we comprehensively analyzed transcriptomic and miRNA expression profiles simultaneously in ABA-and nordihydroguaiaretic acid(NDGA,an ABA biosynthesis blocker)-treated strawberry fruits with temporal *** results revealed that ABA regulated many genes in different pathways,including hormone signal transduction and the biosynthesis of secondary *** factor genes belonging to WRKY and heat shock factor(HSF)families might play key roles in regulating the expression of ABA inducible genes,whereas the KNOTTED1-like homeobox protein and Squamosa Promoter-Binding-like protein 18 might be responsible for ABA-downregulated ***,20 known and six novel differentially expressed miRNAs might be important regulators that assist ABA in regulating target genes that are involved in versatile physiological processes,such as hormone balance regulation,pigments formation and cell wall ***,degradome analysis showed that one novel miRNA,Fa_novel6,could degrade its target gene HERCULES1,which likely contributed to fruit size determination during strawberry *** results expanded our understanding of how ABA drives the strawberry fruit ripening process as well as the role of miRNAs in this process.

关键词： straw analysis likely

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果园风送喷雾精准控制方法研究进展

农业工程学报 2018年第10期34卷 1-15页

作者：翟长远赵春江 Ning Wang John Long 王秀 Paul Weckler 张海辉西北农林科技大学机械与电子工程学院杨凌712100 国家农业信息化工程技术研究中心北京100097 Department of biosystems and Agricultural engineering Oklahoma State UniversityStillwaterOK 74078USA 农业部农业物联网重点实验室杨凌712100 陕西省农业信息感知与智能服务重点实验室杨凌712100

果园风送喷雾技术与装备正在朝着精准化和智能化方向发展。果园喷雾控制对象主要为喷施药量和风力供给量,二者需要协同精准调控,其按需调控的前提是果园靶标精准探测。该文从果园靶标探测方法、喷施药量控制方法、风力调控方法 3个方面... 详细信息

果园风送喷雾技术与装备正在朝着精准化和智能化方向发展。果园喷雾控制对象主要为喷施药量和风力供给量,二者需要协同精准调控,其按需调控的前提是果园靶标精准探测。该文从果园靶标探测方法、喷施药量控制方法、风力调控方法 3个方面对现有研究进展进行综述,阐述了基于光电感知、超声波传感、激光雷达、图像、光谱和电子鼻技术探测果树位置、冠层外形轮廓、冠层体积、冠层内部结构、枝叶稠密程度、病虫害程度等特征信息的技术方法;分析了喷施药量调控方法中管道总药量控制方法在管道设计、混药方式、药液流量控制策略方面技术和产品化上取得的巨大突破,以及喷头药量独立控制方法研究方面获得的大量成果;综述了果园风送喷雾风速风量需求理论原则、风场雾场建模方法、风力调控方法与调控装备研究进展,指出了其基本理论原则、建模调控方法等科学问题还有待深入探索。同时,还分析了目前研究在果园靶标探测方法、喷施药量调控方法和风送喷雾风力调控方法中面临的困难和挑战,主要包括冠层稠密程度和病虫害程度高效感知方法探索、靶标风力需求普适模型构建、风场建模风力按需调控方法研究和精准喷雾技术与系统集成开发。最后指出了果园风送喷雾精准控制方法未来发展方向:1)果园靶标冠层枝叶稠密程度和病虫害程度在线探测方法将成为新的研究热点;2)果园风送喷雾风速风量供给需求理论原则、风场快速模拟仿真和风力调控方法与装备是未来重要研究方向;3)随着高新科技的涌现,科研院所和公司有望在果园喷雾药量和风力调控系统优化设计及精准喷雾机系统集成研发方面获得更大发展。

关键词：农业机械喷雾果园靶标探测变量技术风力调控

基于荧光光谱分析秸秆深埋还田黑土剖面DOC组分结构变化特征

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光谱学与光谱分析 2022年第10期42卷 3243-3248页

作者：匡恩俊迟凤琴张久明徐明岗 Gilles Colinet 宿庆瑞郝小雨朱宝国黑龙江省黑土保护利用研究院黑龙江省土壤环境与植物营养重点实验室黑龙江哈尔滨150086 中国农业科学院农业资源与农业区划研究所北京100081 Department of biosystems engineering(BIOSE) Gembloux Agro-Bio Tech of Universitéde LiègeJean BruBelgium 黑龙江省农业科学院佳木斯分院黑龙江佳木斯154007

以黑土为研究对象,分析不同深度玉米秸秆还田(0~2,3~10,11~20,21~30和31~40 cm)后可溶性有机碳(DOC)的荧光特性差异,探讨秸秆深还田后腐殖化程度的变化特征。结果表明:秸秆还田可提高土壤DOC的含量。三维荧光光谱特征表明,土壤DOC的荧... 详细信息

以黑土为研究对象,分析不同深度玉米秸秆还田(0~2,3~10,11~20,21~30和31~40 cm)后可溶性有机碳(DOC)的荧光特性差异,探讨秸秆深还田后腐殖化程度的变化特征。结果表明:秸秆还田可提高土壤DOC的含量。三维荧光光谱特征表明,土壤DOC的荧光组分均为2种,CK~T4处理分别为类腐殖质物质组分(Ex/Em=250~275/455 nm)和类色氨酸物质组分(Ex/Em=225~237/340~350 nm),而T5处理分别为类腐殖质物质组分(Ex/Em=250~275/455 nm)和类酪氨酸物质组分(Ex/Em=225/304 nm),还田31~40 cm深度有较小的自生成分,且腐殖化系数最高。土壤DOC组分C1的荧光强度有随着秸秆还田深度的加深而增大的趋势,C2组分则呈波动性的状态,荧光强度先增强再减弱。土壤DOC受自生源和外生源共同作用(FI>1.4,0.6

关键词：秸秆还田土壤深度土壤DOC 三维荧光光谱 PARAFAC分析

A pyridoxal-based chemosensor for visual detection of copper ion and its application in bioimaging

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Chinese Chemical Letters 2014年第9期25卷 1230-1234页

作者： Cai-Xia Yin Li-Jun Qu Fang-Jun Huo Key Laboratory of Chemical Biology and Molecular engineering of Ministry of Education Institute of Molecular ScienceShanxi University Research Institute of Applied Chemistry Shanxi University

A pyridoxal-based chemosensor was synthesized by reacting hydrazine hydrate and pyridoxal hydrochloride in ethanol and characterized by NMR and ESI-MS. The optical properties of the compound were investigated in a methanol： HEPES solution. The compound displayed selectivity for Cu2＋, as evidenced by a colorless to yellow color change, which was characterized using UV-vis spectroscopy. The fluorescence of the compound can be quenched only by Cu2＋, accompanying by a color change from blue to colorless. Furthermore, it can be used in bioimaging.

关键词： Pyridoxal-based Copper ion Chemosensor Bioimaging