检索结果-南通市图书馆

Isolation and characterization of a thermophilic Bacillus shackletonii K5 from a biotrickling filter for the production of polyhydroxybutyrate

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2014年第7期26卷 1453-1462页

作者： Yong Liu Shaobin Huang Yongqing Zhang Fuqian Xu Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution co.trol College of Environment and EnergySouth China University of Technology State Key Laboratory of Pulp and Paper engineering South China University of Technology The Key Lab of Pollution co.trol and Eco.ystem Restoration in Industry Clusters Ministry of Education China The Key Laboratory of Environmental Protection and Eco.Remediation of Guangdong Regular Higher Education Institutions

Polyhydroxyalkanoates（PHAs） are aliphatic polyesters accumulated intracellularly by both Gram-negative and Gram-positive bacteria. However, co.pared to the PHAs of Gramnegative bacteria, few endotoxins（lipopolysaccharides, LPS）, which would be co.purified with PHAs and cause immunogenic reactions, are found in the PHAs produced by Gram-positive bacteria. A thermophilic Gram-positive bacterium K5, which exhibited good growth and polyhydroxybutyrate（PHB）-accumulating ability, has been isolated and characterized from a biotrickling filter designed for the removal of NOx from flue gas in a co.l-fired power plant in China. Based on the biochemical characterization and 16 S rRNA gene sequence（Genbank accession no. JX437933）, the strain K5 has been identified as Bacillus shackletonii, which has rarely been reported in the literature, and this report is the first time that B. shackletonii has been found to accumulate PHB. The strain K5 was able to utilize gluco.e as carbon source to synthesize PHB at a broad range of temperatures（from 35 to 50 °C）, and the ideal temperature was 45 °C. The strain K5 co.ld effectively yield PHB of up to 69.9% of its cell dry weight（CDW）（2.28 g/L） in flask experiments employing gluco.e as carbon source at 45 °C, followed by 56.8% and 52.3% of its CDW when using sodium succinate and glycerol as carbon source, respectively. For batch cultivation, the strain K5 was able to produce PHB of up to 72.6% of its cell dry weight（9.76 g/L） employing gluco.e as carbon source at 45 °C and pH 7.0.

关键词： Polyhydroxyalkanotes (PHAs) Lipopolysaccharide Thermophilic Polyhydroxybutyrate Bacillus shackletonii Batch cultivation

Laser-assisted synthesis of co.alt@N-doped carbon nanotubes deco.ated channels and pillars of wafer-sized silico. as highly efficient three-dimensional solar evaporator

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第10期32卷 3090-3094页

作者： Yiwei Zhao Haifeng Yuan Xiaofei Zhang Guobin Xue Jiebin Tang Yuke Chen Xiaoli Zhang Weijia Zhou Hong Liu State Key Laboratory of Crystal Materials Shandong UniversityJi’nan 250100China co.laborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research(iAIR)University of JinanJi’nan 250022China School of Materials Science and engineering Zhengzhou UniversityZhengzhou 450001China

The co.NCNTs/Si pillars with channels is assemble to a suitable pure water gathering device,which is applied in seawater desalination and sewage purification to produce pure water by utilizing solar ***-efficiency utilization of solar energy to generate water vapor is popular,recyclable,and environmentally friendly for seawater desalination and sewage purification,helping to alleviate the global water shortage ***,we report an efficient and simple method to prepare a threedimensional(3 D) evaporator for steam generation by harnessing the power of the *** evaporation is co.posed of one-dimensional(1 D) co.alt embedded and nitrogen doped carbon nanotubes(co.NCNTs) and 3 D silico. pillars array structure(Si pillars).The co.NCNTs/Si pillars shows a wide light absorption range provided by carbon nanotubes and a long light absorption path because of the silico. *** surface temperature of the sample rises rapidly in 1.5 min and exceed 80C under solar illumination of one *** water evaporation can be high as 1.21 kg m^(-2) h^(-1) under one sun irradiation(1 kW/m^(2)) with the energy efficiency up to 82.4%.This scalable co.NCNTs/Si pillars can prepare pure water from seawater and sewage,where the removal rate of ions in seawater and pollutants in sewage is similar to 100%.Based on our research,this multistage three-dimensional structure is a simple and efficient novel photothermal material for extensive seawater desalination and sewage purification.

关键词： Laser process Carbon nanotubes Silico. pillars Photothermal co.version water evaporation

Realizing simultaneously excellent energy storage and discharge properties in AgNbO_(3)based antiferroelectric ceramics via La^(3t)and Ta^(5+)co.substitution strategy

在线全文

学校读者我要写书评

暂无评论

Journal of Materiomics 2023年第2期9卷 410-421页

作者： Yuqi Zhou Shuaibing Gao Jie Huang Meng Shen Shenglin Jiang Yunbin He Qingfeng Zhang Hubei Key Lab of Ferro&Piezoelectric Materials and Devices School of Materials Science&EngineeringHubei UniversityWuhan430062China School of Physics and Electronic Science Hubei UniversityWuhan430062China School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan430074China

AgNbO_(3)based antiferroelectric(AFE)ceramics have large maximum polarization and low remanent polarization,and thus are important candidates for fabricating dielectric ***,their energy storage performances have been still large difference with those of lead-based AFEs because of their room-temperature ferrielectric(FIE)*** this study,novel La^(3+)and Ta^(5+)co.substituted AgNbO_(3)ceramics are designed and *** introduction of La^(3+)and Ta^(5+)decreases the tolerance factor,reduces the polarizability of B-site cations and increases local structure heterogeneity of AgNbO_(3),which enhance AFE phase stability and refine polarization-electric field(PeE)***,adding La^(3+)and Ta^(5+)into AgNbO_(3)ceramics causes the decrease of the grain sizes and the increase of the band gap,which co.tribute to increased *** a co.sequence,a high reco.erable energy density of 6.79 J/cm3 and large efficiency of 82.1%,which exceed those of many recently reported AgNbO_(3)based ceramics in terms of overall energy storage properties,are obtained in(Ag0.88La0.04)(Nb0.96Ta0.04)O_(3)***,the discharge properties of the ceramic with discharge time of 16 ns and power density of 145.03 MW/cm3 outperform those of many lead-free dielectric ceramics.

关键词： AgNbO_(3)antiferroelectrics Grain sizes Tolerance factor Energy storage Discharge properties

Energy Demand for 21st Century and Present PV co.t Analysis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Demand for 21st Century and Present PV Cost Analysis

60keV质子辐照对TiNi记忆合金薄膜马氏体相变的影响

第十五届国际光伏科学与工程大会

作者： Dilip C.Ghimire Sudip Adhikari Sunil Adhikary Hideo Uchida Masayoshi Umeno Department of Electrical and Electronic engineering Chubu University 1200 Matsumoto-cho Kasugai 487-8501 Japan Department of Electronics and Information engineering Chubu University 1200 Matsumoto-cho Kasugai 487-8501 Japan

The energy demand of 21 century is significantly high due to the increase of world population and the advancement in science and technology. Most of the energy demand of the world has been fulfilled by fossil fuels and nuclear power. The excessive use of fossil fuels has caused the environmental problems in many co.ntries of the world. The oil crisis of the 1970s co.pled with the co.tinual decline of fossil fuels reserves made us aware that alternative sources of renewable energy are necessary in order to ensure the world’s energy needs of the immediate future. Photovoltaic (PV) energy is attractive and reliable among the alternative energy sources, and widespread use of it co.ld fulfill the future energy demand without having environmental problems. As a clean energy technology, PV energy can indeed promote sustainable eco.omic development. Nevertheless, most of the primary energy still depends on fossil fuels and current utilization of renewable energy is negligibly small, except for hydropower. There is a forecast that the world primary energy supply in 2030, will increase to over 1.5 times as much as that in 2000 due to the world eco.omic growth and population increase. In addition, energy demand in developing co.ntries will increase significantly. In addition to the energy crisis problem, the massive co.sumption of fossils fuels with its resulting co.emissions has caused the problem of global warming. The purpose of our research is to illustrate estimated long-term co.t of a PV module and a thermal energy system powered by fossil fuels.

关键词： World energy demand PV energy PV co.t

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

强激光与粒子束 2004年第11期16卷 1473-1476页

作者：王治国祖小涛雷雨莫华强傅永庆电子科技大学应用物理系四川成都610054 Department of engineering University of Cambridge Trumpington Street

　利用磁控溅射的方法在氧化后的单晶Si基片上制备了TiNi形状记忆合金薄膜,利用示差扫描量热法和原位X射线衍射研究了薄膜的马氏体相变特征。通过60keV质子注入(辐照)薄膜样品研究了H+离子对合金薄膜马氏体相变特征的影响,结果表明氢离... 详细信息

　利用磁控溅射的方法在氧化后的单晶Si基片上制备了TiNi形状记忆合金薄膜,利用示差扫描量热法和原位X射线衍射研究了薄膜的马氏体相变特征。通过60keV质子注入(辐照)薄膜样品研究了H+离子对合金薄膜马氏体相变特征的影响,结果表明氢离子注入后引起了马氏体相变开始Ms和结束点Mf以及逆马氏体相变开始As和结束温度Af的下降,而对R相变开始Rs和结束温度Rf影响不大。掠入射X射线衍射表明H+离子注入后有氢化物形成。H+离子注入形成的氢化物是引起相变点的变化的主要因素。

关键词： TiNi形状记忆合金薄膜 H离子注入马氏体相变示差扫描量热仪 X射线衍射

碳配额市场下以乙醇胺溶液进行碳捕集的电厂的优化竞标和运行:基于强化学习的Sarsa时间差分算法的解决方案

在线全文

学校读者我要写书评

暂无评论

engineering 2017年第2期 230-249页

作者：李子昂丁正桃王美宏 School of Electrical and Electronic engineering The University of Manchester Department of Chemical and Biological engineering The University of Sheffield

对于处在碳配额市场条件下以乙醇胺(MEA)进行碳捕集的燃煤电厂,本文应用了基于强化学习的Sarsa时间差分算法为其自行搜寻一种统一的竞标和运行策略。电厂的决策者的目的被定义为最大化电厂寿命下的贴现累计利润。其中,我们引入以下两个... 详细信息

对于处在碳配额市场条件下以乙醇胺(MEA)进行碳捕集的燃煤电厂,本文应用了基于强化学习的Sarsa时间差分算法为其自行搜寻一种统一的竞标和运行策略。电厂的决策者的目的被定义为最大化电厂寿命下的贴现累计利润。其中,我们引入以下两个限制条件:一是碳捕集的高能耗和电力生产之间的权衡;二是碳排放交易市场中竞得的碳配额数量与电力生产导致的实际碳排放量的近似相等。本文给出了三个案例方便研究。第一个案例中,我们展示了Sarsa算法将收敛到一个确定且优化的竞标和运行策略。第二个案例中,相互独立设计的运行和竞标策略与统一设计的运行和竞标策略相互比较,以表明加入了随时间变化、市场导向的碳捕集水平后,Sarsa算法将有助于电厂决策者获得更高的贴现累计利润。第三个案例则引入了处在同一碳配额市场的另一电厂作为原电厂的竞争对手。两家电厂设置了相同的发电和二氧化碳捕集设备,但新电厂采用不同的策略获得利润。比较两家电厂的贴现累计利润,结果表明:采用Sarsa学习算法、找到统一的竞标和运行策略的原电厂会更具竞争力。

关键词：电厂燃烧后碳捕集化学吸收碳配额市场决策优化强化学习

Environmental benefits for a geothermal power plant with co.(2) reinjection:case study of the Kizildere 3 U1 geothermal power plant

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Energy Storage and Saving 2023年第4期2卷 631-638页

作者： María Dolores Mainar-Toledo Ural Halaçoglu Hakan Alp Sahiller Tugrul Hazar Claudio Zuffi Maryori Díaz-Ramírez Giampaolo Manfrida Research Centre for Energy Resources and co.sumption(CIRCE) Zaragoza50018Spain CIRCE Institute University of ZaragozaZaragoza50009Spain Zorlu Enerji Istanbul34394Türkiye Department of Industrial engineering University of FlorenceFirenze50134Italy

Geothermal power plants(GPP)with high non co.densable gases(NCG)co.tent geothermal fluid have shown to be environmental impacting relating to their energy production,which co.ld be critical if no co.rective actions are *** GPP of Kizildere 3 U1,located in Türkiye(Denizli),in where the geothermal fluid co.tains high percentage of co.(2),99%of the NCG fraction,which represents the 3%of the geothermal fluid mass,is taken as a relevant case study to implement a new innovation co.sisting of NCG reinjection to reduce the amount of NCGs released to the *** order to calculate the present environmental impacts which the plant is causing(baseline);and the potential reduction of environmental impacts which can be achieved with the innovation(reinjection),a life cycle assessment(LCA)calculation were *** data were co.lected for all the relevant stages of the energy co.version cycle and co.plemented where necessary with seco.dary data from other geothermal power plants *** main results of the baseline environmental assessment show that the co.struction phase is the most impacting phase due to the materials used in the power plant building co.struction,electrical generation equipment and distributed machinery and infrastructures;the effects in the operation phase are dominated by the geothermal fluid *** this sense,the application of co.(2) reinjection at the Turkish site into the reservoir will prevent the emission of 1,700 tons⋅year􀀀1 in the pilot site and 10%of the total emissions released along the life span of the GPP.

关键词： Life cycle assessment Geothermal energy Non-co.densable gases Reinjection co.(2)emissions avoided

Bimetal-organic-framework derived co.iO_3 mesoporous micro-prisms anode for superior stable power sodium ion batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Materials 2018年第8期61卷 1057-1066页

作者： Zhen-Dong Huang Ting-Ting Zhangi Hao Lu Jike Yang Ling Bai Yuehua Chen Xu-Sheng Yang Rui-Qing Liu Xiu-Jing Lin Yi Li Pan Li Xianming Liu Xiao-Miao Feng Yan-Wen Ma Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing University of Posts & Telecommunications Nanjing 210023 China Advanced Manufacturing Technology Research Centre Department of Industrial and Systems Engineering Hong Kong Polytechnic University Hong Kong China co.lege of Chemistry and Chemical engineering Luoyang Normal University Luoyang 471022 China

Durability, rate capability, capacity and tap density are paramount performance metrics for promising anode materials, especially for sodium ion batteries. Herein, a carbon free mesoporous co.iO3 micro-prism with a high tap density （1.8 gcm^-3） is newly developed by using a novel co.Ti- bimetal organic framework （BMOF） as precursor. It is also interesting to find that the co.Ti-BMOF derived carbon-free mesoporous co.iO3 micro-prisms deliver a superior stable and more powerful Na^＋ storage than other similar reported titania, titanate and their carbon co.posites. Its achieved ca- pacity retention ratio for 2,000 cycles is up to 90.1% at 5 A g^-1.

关键词： sodium ion batteries anode materials metal-organic framework co.alt titanate mesoporous materialssodium ion batteries anode materials metal-organic framework co.alt titanate mesoporous materials

Single-layered non-interleaved spin-insensitive metasurfaces for wavefront engineering

在线全文

学校读者我要写书评

暂无评论

Chinese Optics Letters 2023年第1期21卷 32-37页

作者： Ata Ur Rahman Khalid Naeem Ullah 韩遇 Urooj Asghar 袁小聪冯甫 Nanophotonics Research Center Shenzhen Key Laboratory of Micro-Scale Optical Information Technology&Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518000China co.lege of Physics and Optoelectronics engineering Shenzhen UniversityShenzhen 518000China Beijing engineering Research Center for Mixed Reality and Advanced Display School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China Department of Physics Forman Christian College-UniversityLahore 54600Pakistan

Metasurfaces,two-dimensional(2D)or quasi-2D arrays of dielectric or metallic meta-atoms,offer a co.pact and novel platform to manipulate the amplitude,phase,and polarization of inco.ing wavefronts in a desired manner by engineering the geometry of *** polarization co.trol,spin-insensitive metasurfaces have attracted significant attention due to the robustness of circular polarization against the beam misalignment and multi-path *** now,several efforts have been made to realize polarization-insensitive metasurfaces for circularly polarized(CP)wavefront manipulation;however,these metasurfaces only co.sider the cross-polarization channels and keep the co.polarization channels *** metasurfaces cannot be co.sidered truly spin-insensitive,as one has to carefully choose the analyzer at ***,by co.bining the polarization-insensitive geometric phase and engineered propagation phase,we propose a spin-insensitive design principle based on metasurfaces that can perform identical functionality(on co.and crosspolarization channels)irrespective of the handedness of incident/transmitted *** a proof of co.cept,we design and numerically realize two types of spin-insensitive wavefront engineering devices:(1)spin-insensitive meta-hologram and(2)spin-insensitive beam deflector with power splitting *** proposed work is expected to open up new avenues for developing spin-independent metasurfaces-based devices.

关键词： metasurface spin-insensitivity meta-hologram beam splitter