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2711.汽车零部件装配中的智能推荐系统
[汽车制造业] [2014-08-06]
关键词:智能推荐系统;汽车零部件;汽车
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2712.在食用菌栽培基于ZigBee技术的综合环境监测系统
[水利、环境和公共设施管理业] [2014-08-06]
The existing wired monitoring systems for edible fungus cultivation has some shortcomings such as complex wiring,unsatisfied function,low automatic level and so on.This paper developed a composite environment monitoring system for edible fungus cultivation based on wireless sensor network with ZigBee technology.Through a star wireless sensor network topology,this system acquired the temperature and humidity of cultivation environment,as well as thegrowing image of edible fungus.Meanwhile,according to the growing nature of edible fungus,a control strategy for cultivation environment was developed and integrated in the system.The proposed composite environment monitoring system provided a good solution for edible fungus cultivation industry.
关键词:食用菌栽培;环境监测;控制策略;ZigBee
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2713.光致发光纳米传感器
[专用设备制造业,计算机、通信和其他电子设备制造业] [2014-08-06]
In addition to the advantages of rapid response, small displaced volume, and high spatial resolution that are common to all nanoscale optical devices, luminescence-based nanosensors can also leverage the intrinsic environmental sensitivity of fluorophores/phosphors and the phenomenon of energy transfer. Their compatibility with standard microscopes and other imaging devices makes them even more attractive for biological and biomedical applications. The reduction in size does, however, also involve some loss of performance, particularly in longevity. In this chapter, the fundamental properties and basic scaling laws of nanoscale fluorescence-based sensors will be discussed, followed by a review of examples of nanosensors and an outlook of the future of these promising devices.
关键词:纳米光学器件;生物医学;纳米传感器;荧光/磷光体
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2714.解剖病理学演变:新策略和新趋势
[专用设备制造业,医药制造业] [2014-08-06]
Science advances both by conceptual leaps and by improved observational and analytic tools. Mechanism and function in biological systems can best be understood in the context of the complex microen-vironments in which they occur, and for this purpose morphologic analysis can be critical. The technological advances in cell and tissue imaging described in this book are currently finding application in a wide variety of basic, translational, and clinical biomedical studies. We have chosen some specific approaches that illustrate the various categories of imaging methodologies available. Many other ways of applying modern morphology-based interrogation of cells and tissues have already been described and are continuously evolving. This chapter provides examples of some of these. On the clinical front, radiologists have embraced new imaging technique to a greater extent than have pathologists. This chapter discusses some of the factors responsible for this, and suggests that pathology and radiology are converging towards a more holistic approach to diagnostic imaging.
关键词:生物系统;生物医学;病理学;放射学
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2715.无机纳米粒子和纳米材料的基础上钛(Ti)在医学中的应用
[医药制造业] [2014-08-06]
Nanomedicine is a relatively new field of science and technology. By interacting with biomolecules, therefore at nanoscale, nanotechnology opens up a vast field of research and application. Current and potential applications of nanotechnology in medicine range from research involving diagnostic devices, drug delivery vehicles to enhanced gene therapy and tissue engineering procedures. Its advantage over conventional medicine lies on its size. Operating at nanoscale allows to exploit physical properties different from those observed at microscale such as the volume/surface ratio. This allows drugs of nanosize be used in lower concentration and has an earlier onset of therapeutic action. It also provides materials for controlled drug delivery by directing carriers to a specific location. Inorganic nanomedicine is likely to remain one of the most prolific fields of nanomedicine, which refers to the use of inorganic or hybrid (inorganic-inorganic or inorganic-organic) nanomaterials (ESfMs) and nanoparticles (INPs) to achieve innovative medical advances for body parts implantation, drug and gene discovery and delivery, discovery of biomarkers, and molecular diagnostics. Among the most promising INMs being developed are metal, silica, dendrimers, organic-inorganic hybrids, ceramics (e.g. ZrO_2, TiO_2, Al_2O_3, etc.) and bioinorganic hybrids. Metal NP contrast agents enhance magnetic resonance imaging and ultrasound results in biomedical applications of in vivo imaging. Hollow and porous INMs have been exploited for drug and gene delivery, diagnostic imaging, and photothermal therapy. Biomolecular inorganic nanohybrids and nanostructured biomaterials have been exploited for targeted imaging and therapy, drug and gene delivery, and regenerative medicine. Potential uses for fluorescent quantum dots (QDs) include cell labeling, biosensing, in vivo imaging, bimodal magnetic-luminescent imaging, and diagnostics. Biocompatible QD conjugates have been used successfully for sentinel lymph node mapping, tumor targeting, tumor angiogenesis imaging, and metastasis cell tracking. This article outlines present developments and future prospects for the use of Ti-based NPs and NMs in experimental in vivo and in vitro studies and in engineering nanodevices and biosensors for clinical and investigative use in diagnosis and therapy in diverse fields of medical sciences, such as oncology, infection control, orthopedics, dentistry, dermatology, genetics, cardiology, ophthalmology, etc. Toxicological considerations of these INPs and INMs are also discussed.
关键词:纳米技术;纳米无机;钛(Ti);二氧化钛(的TiO_2);生物医学
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2716.机会和障碍的大型生物质利用:一个研讨会总结:化学科学与工程领域中的作用
[电力、热力、燃气及水生产和供应业] [2014-08-06]
Over the past two years, the federal government has released several reports highlighting the importance of biomass as a potential source of economic growth and energy independence. In January 2011, for example, the Congressional Research Service issued a report titled Agriculture-Based Biofuels: Overview and Emerging Issues that reviewed the evolution of the U.S. biofuels sector and the role that federal policy has played in shaping its development. In August, 2011, the Department of Energy (DOE) released 2011 U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry, which detailed U.S. biomass feedstock potential nationwide. The report examined the nation's capacity to produce a billion dry tons of biomass resources annually for energy uses without impacting other vital U.S. farm and forest products, such as food, feed, and fiber crops. Then in April 2012, the White House Office of Science and Technology Policy issued the National Bioeconomy Blueprint, a large portion of which described the importance of biomass as a source of energy and chemicals for manufacturing.
关键词:生物质能;能源利用;农业;化工
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2717.系统级碳风险评估的软件框架的最后科学/技术报告的发展
[水利、环境和公共设施管理业] [2014-08-06]
The overall purpose of this project was to identify, evaluate, select, develop, and test a suite of enhancements to the GoldSim software program, in order to make it a better tool for use in support of Carbon Capture and Sequestration (CCS) projects. The GoldSim software is a foundational tool used by scientists at NETL and at other laboratories and research institutions to evaluate system=level risks of proposed CCS projects.
关键词:空气污染;系统级碳风险评估;软件框架
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2718.生物膜的膜生物反应器硅胶包封水再生
[电力、热力、燃气及水生产和供应业] [2014-08-06]
Habitat systems for long-term resource recovery must be reliable, safe and highly efficient, while providing potable water, oxygen, and edible biomass. Water makes up a large portion of the daily mass input into habitat systems. Considerations for water recycling technologies include shelf life, resupply-return logistics, maintenance time, power requirements, and footprint. Water recovery via physicochemical processes is limited by resupply, which can be alleviated by incorporation of an autonomous bioregenerative core, utilizing innate metabolic activity of cells to recover useable water from various wastestreams. Major components of bioregenerative core systems include plant/crop production systems and microbial bioreactors. One of the microbial bioreactor technologies currently under consideration for use within closed loop water recovery systems is the membrane-aerated bioreactor (MABR). Although many advancements have been made regarding the optimization of MABR biotechnologies, problems that persist include: slow startup time, shock loading/reduction of processing efficiency, uncontrolled detachment of sessile bacteria, and the ability to control microniche community formation for degradation of complex wastestreams. To improve bioreactor design in these areas, we have demonstrated a technique linking advanced cell immobilization to hollow fiber membrane bioreactor. Porous silica immobilization of cells (biosilification) is a biocompatible, optically transparent encapsulation method used for high quality thin film deposition. Results indicate that encapsulated membrane-bound cells within biofilms are viable, retain their morphology, are metabolically active, and are physically trapped following biosilification. The resultant thin silica membrane is evenly distributed over the biofilm surface, reducing molecular diffusion limitations, and reinforcing the matrix.
关键词:水回收;生化;化学反应器;膜;生物质能
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2719.中国嘉陵江流域重庆段在桑树抗旱性应用于植被恢复工程的研究
[电力、热力、燃气及水生产和供应业] [2014-08-06]
To examine possible effects of soil water conditions in summer in Chongqing section of Jialing River Basin on mulberry trees, we grew potted mulberry in a greenhouse under three soil water regimes designed to simulate normal irrigation (CK), moderate drought stress (T1) and extraordinary drought stress (T2).The results showed the following.1) With drought stress increasing, the heights, base diameters and root biomass all decreased significantly.The root/shoot ratio, specific root area and root activity of mulberry on the whole showed an increasing trend as drought stress increasing.The leaf water potential of mulberry after drought stress on the whole decreased significantly compared with CK; 2)With the elongation of treatment time, the heights, base diameters root biomass and root/shoot ratios of mulberry in the three treatment groups still increased to different degrees.The root activity of mulberry in each treatment group first increased and then decreased basically, but still maintained a higher level compared with CK, moreover, the leaf water potential of mulberry also decreased gradually on the whole.We concluded that under drought stress conditions the growth of mulberry will be inhibited in a way, but the plant can actively improve its absorption ability by some ways, thereby maintaining its normal physiological metabolism, accordingly demonstrating strong drought resistance.
关键词:桑树;抗旱性;植被恢复工程;生物质能
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2720.国家级与能源有关的二氧化碳排放量,2000-2010
[水利、环境和公共设施管理业] [2014-08-06]
The overall size of a state, as well as the available fuels, types of businesses, climate, and population density, play a role in both total and per capita emissions. Additionally, each statefs energy system reflects circumstances specific to that state. For example, some states are located near abundant hydroelectric supplies, while others contain abundant coal resources. This paper presents a basic analysis of the factors that contribute to a state's carbon dioxide profile. This analysis neither attempts to assess the effect of state policies on absolute emissions levels or on changes over time, nor does it intend to imply that certain policies would be appropriate for a particular state.
关键词:空气污染;空气污染监测;二氧化碳;国家级