Chemical monitoring

Xem 1-20 trên 71 kết quả Chemical monitoring
  • This book provides a comprehensive compilation of chapters in air quality modelling, monitoring, exposure, health and control. The book consists of two volumes. Air Pollution – Monitoring, Modelling and Health mainly consist of chapters describing pioneering research findings in air quality monitoring, modelling, exposure and health; Air Pollution – Monitoring, Modelling, Health and Control comprises research findings on air quality monitoring, modelling, exposure, health and control.

    pdf264p orchid_1 25-09-2012 47 16   Download

  • The chemical sensor plays an essential role in the fields of environmental conservation and monitoring, disaster and disease prevention, and industrial analysis. A typical chemical sensor is a device that transforms chemical information in a selective and reversible way, ranging from the concentration of a specific sample component to total composition analysis, into an analytically useful signal.

    pdf0p cucdai_1 16-10-2012 27 11   Download

  • The EU Water Framework Directive (2000/60/EC) is probably the most significant legislative instrument in the water field that was introduced on an international basis for many years. It moves towards integrated environmental management with key objectives to prevent any further deterioration of water bodies, and protect and enhance the status of aquatic ecosystems and associated wetlands. It aims to promote sustainable water consumption and will contribute to mitigating the effects of floods and droughts.

    pdf487p phoebe75 01-02-2013 21 9   Download

  • This document focuses on the batch manufacture of organic chemicals in multipurpose plants and addresses the manufacture of a wide range of organic chemicals although not all of them are explicitely named in ANNEX 1 of the Directive. The list is not conclusive but includes, e.g. dyes and pigments, plant health products and biocides, pharmaceutical products (chemical and biological processes), organic explosives, organic intermediates, specialised surfactants, flavours, fragrances, pheromones, plasticisers, vitamins, optical brighteners and flame- retardants.

    pdf0p cao_can 29-12-2012 32 7   Download

  • Scale-up in Chemical Engineering: The first part details the theoretical principles, introducing the subject for readers without a profound prior knowledge of mathematics. All this is illustrated by 20 real-world examples, while 25 exercises plus solutions new to this edition practice and monitor learning.

    pdf0p 61204392 22-10-2014 10 5   Download

  • To elucidate the chemical interactions underlying the role of metallothioneins (MTs) in reducing the cytotoxicity caused by MeHg(II), we monitored in parallel by electronic absorption and CDspectroscopies the stepwise addition of MeHgCl stock solution to mammalian Zn7-MT1 and the isolated Zn4 -aMT1 and Zn3 -bMT1 fragments. The incor-poration of MeHg + into Zn7-MT and Zn3-bMT entails total displacement of Zn(II) and unfolding of the protein. However, both features are only partial for Zn4 -aMT.

    pdf6p dell39 03-04-2013 14 4   Download

  • January 2012 saw the completion of the U.S. Army’s Chemical Materials Agency’s (CMA’s) task to destroy 90 percent of the nation’s stockpile of chemical weapons. CMA completed destruction of the chemical agents and associated munitions stored at six of eight continental U.S. storage facilities as well as chemical weapons deployed overseas, which were transported to Johnston Atoll, southwest of Hawaii, and demilitarized there. The remaining 10 percent of the nation’s chemical weapons stockpile is stored at two remaining continental U.S.

    pdf193p xunu1311 02-11-2012 17 3   Download

  • Temperature measurement and control are vital in many industrial processes. Accurate control of the temperature is essential in nearly all chemical processes. In some applications, an accuracy of around 5-10~ may be acceptable. There are also some industrial applications which require better than 4-1 ~ accuracy.

    pdf233p cusonson 21-01-2010 121 54   Download

  • Composites are engineered or naturally occurring materials made from two or more constituent materials with significantly different physical or chemical properties which remain separate and distinct within the finished structure. Basically, they can be categorized into two major types, i.e., structural composites with outstanding mechanical properties and functional composites with various outstanding physical, chemical or electrochemical properties. They have been widely used in a wide variety of products, e.g.

    pdf0p greengrass304 18-09-2012 40 19   Download

  • Soft sensors are a valuable tool in many different industrial fields of application, including refineries, chemical plants, cement kilns, power plants, pulp and paper industry, food processing, nuclear plants, urban and industrial pollution monitoring, just to give a few examples.

    pdf40p thachsaudoi 22-12-2009 62 14   Download

  • Difficulty in addressing contamination in low permeability soils may be alleviated to some degree by controlled pneumatic or hydraulic fracturing of the soil. However, engineered hydraulic fractures generally cannot be spaced more closely than about 5 feet, which means that chemical oxidants must still penetrate a substantial thickness of low permeability soil to come into contact with the contamination. Deep soil mixing with large diameter drill augers is the most effective method currently available to increase contact between adsorbed contaminants and the oxidants.

    pdf408p cao_can 29-12-2012 28 11   Download

  • No evidence of a difference in content of nutrients and other substances between organically and conventionally produced crops and livestock products was detected for the majority of nutrients assessed in this review suggesting that organically and conventionally produced crops and livestock products are broadly comparable in their nutrient content.

    pdf448p ut_hai_can 29-12-2012 24 10   Download

  • Market and banking supervisors and regulators are in the process of stepping up their monitoring of the ETF market. Work is underway nationally and internationally on assessing how recent innovations in this area can add to financial system risks, what incentives underpin them, and what potential flaws there might be in current risk practices. The interaction of ETF regulatory frameworks with recent innovations as well as the scope for regulatory arbitrage across regions and markets is also being examined.

    pdf25p doipassword 01-02-2013 33 8   Download

  • Weather natural hazards, the environment and climate change are of concern to all of us. Especially, it is essential to understand how human activities might impact the nature. Hence, monitoring, research, and forecasting is of the outmost importance. Furthermore, climate change and pollution of the environment do not obey national borders; so, international collaboration on these issues is indeed extremely important.

    pdf0p namde01 11-04-2013 41 8   Download

  • This book is about the distribution and abundance of different types of organism, and about the physical, chemical but especially the biological features and interactions that determine these distributions and abundances. Unlike some other sciences, the subject matter of ecology is apparent to everybody: most people have observed and pondered nature, and in this sense most people are ecologists of sorts. But ecology is not an easy science.

    pdf759p phoebe75 01-02-2013 19 7   Download

  • Understand the importance of tools such as quality assurance project plans to effective monitoring of environmental chemicals. • Describe the elements of a quality assurance project plan. • Describe the elements in the development of data quality objectives. • Define quality assurance and quality control.

    pdf10p nguyenvanquan037 07-01-2011 37 6   Download

  • Within the overall transport process, attenuation processes may cause movement of the chemical to differ from that of the bulk flowing groundwater, for example dispersion, sorption and chemical or biological degradation of the chemical. Such attenuation processes potentially act to mitigate the impact of chemicals and are a function of both the specific chemical and geologic domain. Indeed, attenuation may vary significantly between individual chemicals and within different geological settings.

    pdf44p cao_can 29-12-2012 18 6   Download

  • This pattern has two main implications. First, if we take loan size as a proxy for the poverty of customers (smaller loans roughly imply poorer customers), microfinance banks appear to serve many customers who are substantially better-off than the customers of nongovernmental organizations. Second, banks will have an easier time earning profits (assuming that a large fraction of the cost of making loans is due to fixed costs).

    pdf50p taisaovanchuavo 23-01-2013 21 6   Download

  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Article Series: Communications from the division "Environmental Chemistry and Ecotoxicology" of the German Chemical Society (GDCh) Statements and reports of the working groups "Environmental Monitoring" and "Soil Chemistry and Soil Ecology"

    pdf8p dauphong11 06-02-2012 28 5   Download

  • Selection of chemical markers is crucial for the quality control of herbal medicines, including authentication of genuine species, harvesting the best quality raw materials, evaluation of post- harvesting handling, assessment of intermediates and finished products, and detection of harmful or toxic ingredients. Ideal chemical markers should be the therapeutic components of herbal medicines. However, for most herbal medicines, the therapeutic components have not been fully elucidated or easily monitored.

    pdf16p thangbienthai 17-11-2012 42 5   Download

Đồng bộ tài khoản