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The use of Phanerochaete chrysosporium,Trichoderma harzianum and Trichoderma viride for biogas production

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Studies in Fungi 2020年第1期5卷 368-380页

作者： Mahmoud YA-g Awadalla OA Estafanous AN Etawy wa Tanta University Faculty of ScienceBotany and Microbiology DepartmentMycology Research Lab.Tanta 31527Egypt Agriculture Microbiology Department SoilWater and Environment Research InstituteAgriculture Research CenterCairoEgypt

The expanding cost of ordinary fuel in urban zones requires the investigation of other vitality *** exploitation of agricultural wastes for biogas production could protect our environment and can also solve emerging energy crises *** chrysosporium,Trichoderma virdie and Trichoderma harzianum were used to ferment rice straw and cattle dung for production of compost and *** yield was determined using displacement technique,using acidified water(1 N H_(2)SO_(4))to prevent solubilization of carbon dioxide contained in the *** results showed that the highest rate of biogas and methane were recorded with treated rice straw mixed with cattle dung where the amount of production from the total gas was 51.84 of biogas and 37.86 of methane per Liter(L)/Kilogram(Kg)of fermented ***,the results showed that the consumed biogas and methane related to volatile solids gave the highest amount with untreated rice straw(86.32 and 56.72 L/Kg respectively)followed by treated rice straw and untreated and treated mixtures of rice straw and cattle dung *** results also showed that the highest bacterial count was obtained from fungi treated rice straw mixed with cattle dung(125×10^(3)cells/g)followed by treated rice straw(32×10^(3)cells/g).This study confirms that ***,*** and *** significantly speed up the process of aerobic and anaerobic fermentation of rice straw in respect to biogas and methane production.

关键词： Aerobic fermentation Anaerobic fermentation Methane Rice straw

A building-based data capture and data mining technique for air quality assessment

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Frontiers of Environmental Science & Engineering 2011年第4期5卷 543-551页

作者： Ni SHENg U wa TANg Faculty of Management and Administration Macao University of Science and TechnologyMacaoChina Department of Civil and Environmental Engineering University of MacaoMacaoChina Dirccao dos Servicos de Proteccao Ambiental MacaoChina

Recently,a building-based air quality model system which can predict air quality in front of individual buildings along both sides of a road has been *** the Macao Peninsula as a case study,this paper shows the advantages of building-based model system in data capture and data *** with the traditional grid-based model systems with input/output spatial resolutions of 1-2 km,the building-based approach can extract the street configuration and traffic data building by building and therefore,can capture the complex spatial variation of traffic emission,urban geometry,and air *** non-homogeneous distribution of air pollution in the Macao Peninsula was modeled in a highspatial resolution of 319 receptors·km^(-2).The spatial relationship among air quality,traffic flow,and urban geometry in the historic urban area is *** study shows that the building-based approach may open an innovative methodology in data mining of urban spatial data for environmental *** results are particularly useful to urban planners when they need to consider the influences of urban form on street environment.

关键词： traffic air pollution spatial distribution high resolution geographic information system

转录组和代谢组分析盐度对盐单胞菌合成羟基四氢嘧啶的影响

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水生生物学报 2024年第7期48卷 1193-1204页

作者：张蔓邢江娃朱德锐李永臻青海大学医学部基础医学研究中心西宁810016

为了明确不同盐度对Halomonas campaniensis XH26合成羟基四氢嘧啶(5-hydroxyectoine,5-HE)代谢通路和基础代谢的影响,研究采用无NaCl作为对照组,以12%、14%和16%NaCl浓度梯度作为高盐组。利用转录组测序和液质联用技术(LC-MS)分析了***... 详细信息

为了明确不同盐度对Halomonas campaniensis XH26合成羟基四氢嘧啶(5-hydroxyectoine,5-HE)代谢通路和基础代谢的影响,研究采用无NaCl作为对照组,以12%、14%和16%NaCl浓度梯度作为高盐组。利用转录组测序和液质联用技术(LC-MS)分析了*** XH26在不同NaCl浓度条件下的差异表达基因和差异代谢物,并利用qPCR对与Ectoine和5-HE合成密切相关的差异基因的表达量进行了相对定量分析验证。结果显示,5-HE合成量在高盐组间随盐梯度先增加后降低,并在14%NaCl浓度时达到最高。转录组结果显示,在186个KEgg代谢通路中,差异表达基因在ABC转运蛋白、双组分系统、鞭毛组装等通路中高度富集。筛选到与5-HE合成代谢相关的7个关键基因表达存在差异,包括lysC、ectA、ectB、ectC、ectD、doeC和doeD。qPCR验证结果与转录组学分析结果基本一致。代谢组分析共发现了1159个差异代谢物,主要富集在氨基酸代谢、辅因子-维生素代谢和碳水化合物等代谢通路。研究还筛选出了显著差异的相容性溶质,包括四氢嘧啶、羟基四氢嘧啶和甜菜碱。研究分析了菌株*** XH26的耐盐特性及盐适应机制,初步明确了5-HE产量及合成基因簇表达随盐度变化的规律,为高产5-HE的野生菌的优化和基因工程菌的构建提供了理论基础。

关键词：转录组学代谢组学盐单胞菌羟基四氢嘧啶

维普期刊数据库博看期刊

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无线传感器网络分布式同步协议

西安电子科技大学学报 2016年第4期43卷 105-110,134页

作者：王晶张帅高丹王营冠中国科学院上海微系统与信息技术研究所无线传感网与通信重点实验室上海201899

针对无线传感器网络同步问题,提出分布式时间同步和分布式数据同步的解决方法.前者要求簇头网络进行局部信息交互,并采用低通滤波技术去除噪声干扰;后者为节点提供网络数据均值,要求簇头网络执行比例一致性算法,簇头在迭代过程中引入簇... 详细信息

针对无线传感器网络同步问题,提出分布式时间同步和分布式数据同步的解决方法.前者要求簇头网络进行局部信息交互,并采用低通滤波技术去除噪声干扰;后者为节点提供网络数据均值,要求簇头网络执行比例一致性算法,簇头在迭代过程中引入簇内节点数量.实验结果表明,分布式时间同步具备抗噪声能力,该算法在前期收敛速度最快.网格状网络和随机网络实验表明,分布式时间同步和分布式数据同步的通信开销非常低,它们的收敛速度均高于普通数据同步.

关键词：无线传感器网络同步分簇通信开销收敛速度

Stability Analysis of PLL Influenced by Control Loops in grid-connected Converters Under Fault Disturbance

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CSEE Journal of Power and Energy Systems 2020年第2期6卷 239-248页

作者： Yushuang Liu Meng Huang Xiaoming zha Herbert Ho-Ching Iu School of Electrical Engineering and Automation Wuhan UniversityWuhan 430000China School of Electrical Electronic and Computer EngineeringThe University of Western AustraliaCrawley WA 6009Australia

When the power grid suffers from grid faults that cause phase disturbances,the grid-connected converter becomes destabilized by the interaction between the phase-locked loop(PLL)and the control *** this paper,the stability of the PLL affected by the control loop under transient grid faults is ***,the equivalent model of the PLL under the influence of the control loop is ***,different response processes of PLLs under the ground fault with various control parameters are qualitatively ***,a small-signal model is proposed to assess the stability of the PLL under different control loop *** system poles can be calculated to show the physical origin of the ***,simulations of a three-phase 21-level modular multilevel converter(MMC)built in PSCAD and a down-scale experiment is performed to verify the parameter influence of the control loop on the PLL.

关键词： Control loop grid-connected MMC ground fault phase-locked loop transient stability

嗜热链球菌grx02化学限定增殖培养基及变温培养策略的研究

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中国乳品工业 2024年第2期52卷 5-11,19页

作者：彭奎耀关成冉瓦云超顾瑞霞扬州大学江苏省乳品生物技术与安全控制重点实验室江苏扬州225000

文章研究了能够促进嗜热链球菌grx02生长的化学限定培养基成分、浓度及其变温培养方法。通过单一成分扣除实验确定化学限定培养基的碳源、氨基酸、维生素矿物质等营养成分的组成,进一步通过单因素实验,对化学限定培养基组分浓度、变温... 详细信息

文章研究了能够促进嗜热链球菌grx02生长的化学限定培养基成分、浓度及其变温培养方法。通过单一成分扣除实验确定化学限定培养基的碳源、氨基酸、维生素矿物质等营养成分的组成,进一步通过单因素实验,对化学限定培养基组分浓度、变温培养方法进行优化,以提高嗜热链球菌grx02的活菌数。结果表明,嗜热链球菌grx02化学限定增殖培养基由1种碳水化合物、16种氨基酸、6种维生素、3种矿物质、4种无机盐、2种有机盐组成;培养初始温度、延滞末期及对数末期温度分别为39、37、39℃。最终嗜热链球菌grx02生物量达到1.40,较优化前提高了1.63倍,活菌数达到9.04 log CFU/mL。可为嗜热链球菌生产及其代谢与功能研究提供参考。

关键词：嗜热链球菌化学限定培养基变温培养

Advances in photothermal conversion of carbon dioxide to solar fuels

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能源化学:英文版 2023年第8期83卷 62-78,I0004页

作者： wa.gao Yinwen Li Dequan Xiao Ding Ma College of Bioscience and Resources Environment Beijing University of AgricultureBeijing 102206China College of Chemistry and Molecular Engineering and College of Engineering Peking UniversityBeijing 100871China Center for Integrative Materials Discovery Department of Chemistry and Chemical and Biomedical EngineeringUniversity of New HavenWest HavenCT 06516USA

Converting carbon dioxide(CO_(2)) into useful fuels or chemical feedstocks is important for achieving peak carbon emission and carbon ***,photothermal catalysis has been extensively studied and applied due to its advantages over traditional heat-driven *** this review,we focus on photothermal catalysis of thermodynamically uphill reactions that convert CO_(2)into value-added *** first introduce the fundamentals of photothermal catalysis for CO_(2)reduction,including the definition and classification of photothermal catalysis,followed by their photothermal conversion *** structure design of different types of photothermal catalysts is *** superior performance of photothermal catalytic conversion of CO_(2)is illustrated and discussed,including improved CO_(2)activation,tunable selectivity towards different solar fuel products,and resistance to sintering and ***,the perspectives and challenges in this cutting-edge field are presented with the aim of advancing understanding of the underlying mechanisms and inspiring rational design of photothermal catalysts for highly efficient solar-to-fuel conversion.

关键词： Solarenergy Photothermal catalysis CO_(2)reduction Catalyst design Performance improvement

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针对α网的最优线性约束转换方法

西安电子科技大学学报 2015年第5期42卷 183-187,212页

作者：张丽赵良煦王寿光汪成英浙江工商大学信息与电子工程学院浙江杭州310018

针对不可控影响子网为α网的一类Petri网,提出了将给定的广义互斥约束转换成最优允许线性约束的方法.该方法首先获得了该网的不可控影响子网;其次,提出了转换后的禁止库所集集合的求解算法;最后,根据禁止库所集集合构造了"逻辑或"形式... 详细信息

针对不可控影响子网为α网的一类Petri网,提出了将给定的广义互斥约束转换成最优允许线性约束的方法.该方法首先获得了该网的不可控影响子网;其次,提出了转换后的禁止库所集集合的求解算法;最后,根据禁止库所集集合构造了"逻辑或"形式的最大允许线性约束.并且通过一个例子,说明了该方法的有效性.

关键词： Petri网离散事件系统禁止状态不可控变迁

Application of Shear wave Elastography and Contrast-Enhanced Ultrasound in Transrectal Prostate Biopsy

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Current Medical Science 2022年第2期42卷 447-452页

作者： gao-wa SHAREN Jun zhaNg Department of Ultrasound Affiliated Hospital of Inner Mongolia Medical UniversityHohhot010050China Department of Urology Affiliated Hospital of Inner Mongolia Medical UniversityHohhot010050China

Objective To explore the clinical value of ultrasound shear wave elastography(SWE)and contrast-enhanced ultrasound(CEUS)in transrectal prostate *** A total of 54 patients(average age:67.79±12.01 years)in the experimental group underwent transrectal prostate biopsy under the guidance of SWE,while 46 patients(average age:69.22±11.54 years)in the control group underwent transrectal prostate biopsy guided by *** There were a total of 451 needles,with an average of 8.35±1.67 needles per patient in the experimental group,and a total of 462 needles,with an average of 10.04±1.33 needles per patient in the control *** difference in puncture times between the two groups was statistically significant(Pwas no significant difference in the positive detection rate,sensitivity or specificity between the two groups(P>0.05),but there was a significant difference in the diagnostic accuracy between the two groups(Pgnificantly higher in the experimental group than in benign prostatic hyperplasia(Pg characteristic curve(ROC)analysis showed that the area under the ROC curve(AUC)of E_(mean)was 0.752(S.E.=0.072,95%CI=0.611-0.894,P=0.007),and the best cutoff value was 47.005 *** In summary,both SWE-and CEUS-guided transrectal prostate biopsy can help find the focus and guide the puncture,and improve the positive detection rate.

关键词： prostate puncture ultrasonic shear wave elastography contrast-enhanced ultrasound biopsy analysis