63 resultater (0,36816 sekunder)

Vis alle filtre

Mærke

Butik

Pris (EUR)

Nulstil filter

Produkter
Fra
Butikker

Prediction of Performance & Pollutant Emission from Pulverized Coal Utility Boilers - E Bar Ziv - Bog - Nova Science Publishers Inc - Plusbog.dk

Prediction of Performance & Pollutant Emission from Pulverized Coal Utility Boilers - E Bar Ziv - Bog - Nova Science Publishers Inc - Plusbog.dk

A three-step methodology was developed to provide reliable prediction of a coal''s behaviour in a utility boiler: (1) Extracting the combustion kinetic model parameters by combining experimental data from a pilot-scale test facility, Computational Fluid Dynamic (CFD) codes and an artificial neural network. While the combustion kinetic parameters used in the model code will not correspond to the combustion rate of a single particle of coal, these parameters do describe the combustion behaviour of a "macroscopic" sample of tested coal.(2) Validation of the combustion kinetic model parameters by comparing diverse experimental data with simulation results calculated with the same set of model parameters. (3) The model parameters are then used for simulations of full-scale boilers using the same CFD code. For operational engineering information needed by the utility operator, the authors apply the predicted results to EXPERT SYSTEM, a boiler supervision system developed by Israel Electric Corporation (IEC). Four different bituminous and sub-bituminous coals with known behaviour in IEC 550MW opposite-wall and 575MW tangential-fired boilers were used to show the adequacy of the methodology. The predictions are done with the CFD code, GLACIER, propriety of Reaction Engineering International (REI). Preconfigured GLACIER models of the test and full-scale furnaces were purchased from REI and validated by our group. This book includes a detailed description of the methodology, test furnace facility and an example of the experimental and predictive combustion results from the four coals used to test the methodology. In addition, two previously unknown coals are examined prior to their firing in the utility boilers and prediction of their behaviour and operational parameters in the two boilers carried out.

DKK 534.00
1

An Essential Guide to Electrical Conductivity and Resistivity - - Bog - Nova Science Publishers Inc - Plusbog.dk

An Essential Guide to Electrical Conductivity and Resistivity - - Bog - Nova Science Publishers Inc - Plusbog.dk

The book opens with experimental and theoretical data on the important structurally sensitive property of the molten oxide-chloride systems KCl (50 mol. %) -- PbCl2 (50 mol. %), CsCl (18.3 mol. %) -- PbCl2 (81.7 mol. %) and CsCl (71.3 mol. %) -- PbCl2 (28.7 mol. %) with PbO concentration reaching 20 mol.% in the temperature range of 764 -- 917 K. This compilation also reports on recent developments in the stabilisation, carbonisation, and activation of naturally grown biomass, their physical and chemical properties, and major applications in supercapacitors. A brief overview of the application areas of the electrical resistivity method, a non-destructive and inexpensive geophysical technique, as well as comprehensive and practical overview of its results in environmental and geotechnical projects, archeology and stone cultural heritage is presented.

DKK 718.00
1

Toxic Chemical Releases - - Bog - Nova Science Publishers Inc - Plusbog.dk

Toxic Chemical Releases - - Bog - Nova Science Publishers Inc - Plusbog.dk

This is an E-supplement to GAO-08-128, which was released on November 30, 2007. The Environmental Protection and Community Right-to-Know Act requires certain facilities to submit Toxics Release Inventory (TRI) reports to their respective states, which have a created range of TRI programs. In order to learn about states'' TRI activities, the authors conducted a survey of state TRI co-ordinators in the 50 states and the District of Columbia. This document presents selected results of their survey.

DKK 405.00
1

The Temporary Assistance for Needy Families (TANF) - - Bog - Nova Science Publishers Inc - Plusbog.dk

The Temporary Assistance for Needy Families (TANF) - - Bog - Nova Science Publishers Inc - Plusbog.dk

This book is a compilation of CRS reports on the Temporary Assistance for Needy Families (TANF) block grant in the United States. TANF was formed in the Personal Responsibility and Work Opportunity Reconciliation Act of 1996, and it imparts federal grants to all 50 states, the District of Columbia, the territories and American Indian tribes for a variety of benefits, services, and activities to combat the effects of childhood economic disadvantage. Some frequently asked questions regarding TANF are addressed is conjunction with recommendations for the future.

DKK 1034.00
1

U.S. Air Force Bombers - - Bog - Nova Science Publishers Inc - Plusbog.dk

U.S. Air Force Bombers - - Bog - Nova Science Publishers Inc - Plusbog.dk

The United States'' existing long-range bomber fleet of B-52s, B-1s, and B-2s are at a critical point in their operational life span. With the average age of each airframe being 50, 28, and 20 years old, respectively, military analysts are beginning to question just how long these aircraft can physically last and continue to be credible weapon systems. This book focuses on the sustainment and modernisation of U.S. Air Force bombers, the sustainment of U.S. global leadership and provides a brief assessment of the January 2012 defence strategic guidance.

DKK 722.00
1

Fatigue & Fracture of Short Fibre Composites Exposed to Extreme Temperatures - Gangadhara Prusty - Bog - Nova Science Publishers Inc - Plusbog.dk

Fatigue & Fracture of Short Fibre Composites Exposed to Extreme Temperatures - Gangadhara Prusty - Bog - Nova Science Publishers Inc - Plusbog.dk

Fibre-reinforced composites have been used for more than 50 years and are still evolving in terms of material integrity, manufacturing process and its performance under adverse conditions. The advent of graphite fibres from polyacrylonitrile organic polymer has resulted in a high performance material, namely carbon based composites, performing better in every respect than glass fibre-reinforced plastic (GFRP). However, glass fibres are still in high demand in wide applications, where the cost takes precedence over performance. This book examines the complex issues surrounding the fatigue, fracture and durability of GFRP-CSM.

DKK 534.00
1

Friction Stir Welding (FSW) - - Bog - Nova Science Publishers Inc - Plusbog.dk

Friction Stir Welding (FSW) - - Bog - Nova Science Publishers Inc - Plusbog.dk

The opening chapter provides a comprehensive insight into dissimilar materials joined by FSW technology. FSW parameters such as tool design, tool pin offset, rotational speed, welding speed, tool tilt angle and position of workpiece material in the fixture for dissimilar materials are summarized. In the next chapter the author confirms the emission of particles in the nanorange during FSW of the most commonly used aluminium alloys, AA 5083 and AA 6082, which are originated from the aluminium alloy itself, due to friction of the welding tool against the workpiece. In the closing chapter, feasibility to join 2.5 mm thick AA5052 aluminium alloy and 1.4 mm thick high strength steel, DP590, by conventional FSW process (FSW) and TIG-assisted HFSW process (HFSW) is studied through couple experimental and numerical analysis. A comparative study in joining of dissimilar materials by conventional FSW and HFSW processes is performed to realize the effect of different welding parameters on the growth of IMC layer thickness.

DKK 624.00
1

Diabetes in Women - - Bog - Nova Science Publishers Inc - Plusbog.dk

Diabetes in Women - - Bog - Nova Science Publishers Inc - Plusbog.dk

Diabetes is a unique condition for women. When compared with men, women have a 50 percent greater risk of diabetic coma, a condition brought on by poorly controlled diabetes and lack of insulin. Women with diabetes have heart disease rates similar to men, but more women with diabetes die from a first heart attack than do men with diabetes. Diabetes also poses special challenges during pregnancy. This new book discusses and presents topical data on the effects of diabetes in women, such as: diabetes mellitus in pregnant women and birth outcomes, assessing bone condition in women with Type 2 diabetes, depression and cardiovascular disease in women with diabetes, and others.

DKK 718.00
1

Bankruptcy Exemptions - - Bog - Nova Science Publishers Inc - Plusbog.dk

Bankruptcy Exemptions - - Bog - Nova Science Publishers Inc - Plusbog.dk

When debtors file for bankruptcy protection under Title 11 of the U.S. Code, they may exempt the value of certain property; in many cases, this includes their homestead. In practical terms, to the extent that the property''s value does not exceed the allowed exemption amount, the debtor may keep the property rather than its becoming part of the bankruptcy estate and thereby being available to satisfy creditors. This book surveys the homestead exemption laws of the 50 states and the District of Columbia with an emphasis on the amount of the exemptions and the extent to which debtors may choose between federal and state exemptions.

DKK 633.00
1

Design & Realization of a Generator Test Bench Working with a Diesel & Biodiesel Blend - Zied Driss - Bog - Nova Science Publishers Inc - Plusbog.dk

Design & Realization of a Generator Test Bench Working with a Diesel & Biodiesel Blend - Zied Driss - Bog - Nova Science Publishers Inc - Plusbog.dk

In this book, the authors are interested in the design and the implementation of a generator test bench that works with a diesel-biodiesel mixture. The goal is to introduce and test the effect of biodiesel addition in carburant. To do this, the authors started their work through the development of an appropriate design. After completing the preparation of the test bench, the authors installed all the necessary instruments. With this equipment, the overall characteristics of the generator running for the first time with diesel and then with different proportions of biodiesel, capping at 50% were studied. This work is of great importance because it solves the ecological problems mainly related to the toxic rejection of conventional fuels.

DKK 1034.00
1

Exercise & Health Research - - Bog - Nova Science Publishers Inc - Plusbog.dk

Exercise & Health Research - - Bog - Nova Science Publishers Inc - Plusbog.dk

In the last 50 years significant numbers of men and women take little exercise in the course of their occupation. The computer keyboard, the rise of private transport, the world by television, household ''labour saving'' devices mean that with the minimal of physical effort people work and play. The benefits of doing regular exercise include a reduced risk of: heart disease, stroke, bowel cancer, breast cancer, osteoporosis, and obesity. In addition, many people feel better in themselves during and after exercise. Regular exercise is also thought to help ease stress, anxiety, and mild depression. This new book presents recent significant research from around the world dealing with various aspects and impacts of exercise as related to health.

DKK 890.00
1

Regulation of Vitamin A Homeostasis by the Stellate Cell (Vitamin A-Storing Cell) System - Mayako Morii - Bog - Nova Science Publishers Inc -

Regulation of Vitamin A Homeostasis by the Stellate Cell (Vitamin A-Storing Cell) System - Mayako Morii - Bog - Nova Science Publishers Inc -

Vitamin A-storing cells in the liver exist in the space between parenchymal cells and liver sinusoidal endothelial cells of the hepatic lobule, and store 50-80% of vitamin A in the whole body as retinyl palmitate in lipid droplets in the cytoplasm. In physiological conditions, these cells play pivotal roles in the regulation of vitamin A homeostasis. In pathological conditions such as hepatic fibrosis or liver cirrhosis, hepatic stellate cells lose vitamin A, and synthesise a large amount of extracellular matrix components including collagen, proteoglycan, glycosaminoglycan, and adhesive glycoproteins. Morphology of these cells also changes from the star-shaped stellate cells to that of fibroblasts or myofibroblasts. This book discusses and presents research on vitamin A-storing cells.

DKK 534.00
1

Chitosan - Vikas Rana - Bog - Nova Science Publishers Inc - Plusbog.dk

Chitosan - Vikas Rana - Bog - Nova Science Publishers Inc - Plusbog.dk

Chitosan is the deacetylated form of chitin. Generally, the substance becomes soluble in dilute acids when the degree of deacetylation is more than 50%. The solubility of chitosan in dilute acids is often needed to be modified when specific drug release properties have to be tailored into the dosage form. The available toxicological data on chitosan and its modified forms appears to indicate its safety for oral use because high doses have been found to be tolerated well in rodents and rabbits. However, its local action as a haemostatic together with its ability to activate macrophages and cause cytokine release may require a careful assessment of its safety for parenteral use. This book offers the dynamics of chitosan''s detailed composition.

DKK 494.00
1

Perchlorate Formation in Electrochemical Water Disinfection - Wido Schmidt - Bog - Nova Science Publishers Inc - Plusbog.dk

Perchlorate Formation in Electrochemical Water Disinfection - Wido Schmidt - Bog - Nova Science Publishers Inc - Plusbog.dk

Electrochemical water treatment is a simple method to generate disinfecting agents. Several companies offer special cell technologies for water disinfection. It has been found that besides active chlorine for disinfection, by-products such as chlorate and perchlorate may be formed. Systematic studies using laboratory cells, semi-technical and technical cells confirm this. Mixed oxide and boron doped diamond anodes were used in laboratory-scale and semi-technical experiments which were conducted under drinking water conditions at temperatures between 10 and 30°C and at current densities between 50 and 500 A m-2. The results of these studies show a perchlorate formation potential. This book presents and discusses current research in the study of perchlorate formation in electrochemical water disinfection.

DKK 633.00
1

Drinking Among Female Victims of Intimate Partner Violence - Sonya B Norman - Bog - Nova Science Publishers Inc - Plusbog.dk

Drinking Among Female Victims of Intimate Partner Violence - Sonya B Norman - Bog - Nova Science Publishers Inc - Plusbog.dk

As many as 1/3 of women in the general population and 50% of women seen in primary care experience abuse by an intimate partner during adulthood. The consequences of having experienced intimate partner violence (IPV) are quite alarming. Female IPV victims represent one of the largest traumatised populations in the United States. Over 60% of women who present to domestic violence shelters meet criteria for posttraumatic stress disorder. Alcohol use among female victims of IPV is common in the form of heavy, moderate or episodic drinking and appears to be both an outcome of and a risk factor for trauma. This book reviews the problems commonly associated with IPV, psychosocial treatments designed to help IPV victims, and research regarding the relationship between drinking and IPV.

DKK 633.00
1

Health Assessments of Chemicals & Contaminants - - Bog - Nova Science Publishers Inc - Plusbog.dk

Health Assessments of Chemicals & Contaminants - - Bog - Nova Science Publishers Inc - Plusbog.dk

The Environmental Protection Agency (EPA) has not conducted a recent evaluation of demand for Integrated Risk Information System (IRIS) toxicity assessments with input from users inside and outside EPA. The health effects information in IRIS provides fundamental scientific information EPA needs to develop human health risk assessments. Specifically, EPA issued a needs assessment report in 2003, which estimated that 50 new or updated IRIS toxicity assessments were needed each year to meet users'' needs. This book determines the extent to which EPA has evaluated demand for IRIS toxicity assessments from users inside and outside EPA; EPA''s process for nominating and selecting chemicals for IRIS toxicity assessment and strategies for addressing any unmet agency needs when IRIS toxicity assessments are not available, applicable, or current.

DKK 890.00
1

Federal Helium Program - - Bog - Nova Science Publishers Inc - Plusbog.dk

Federal Helium Program - - Bog - Nova Science Publishers Inc - Plusbog.dk

The federal government has been extensively involved in the production, storage, and use of helium since the early part of the twentieth century. The federal helium program is currently managed by the Department of the Interior''s BLM. During the 1960s and early 1970s, Interior purchased about 34 billion cubic feet of crude helium for conservation purposes and to meet federal helium needs, such as for the space program and scientific research. Crude helium is a gas of 50 to 85 percent helium. While some of this helium was used to meet federal needs, most of it was retained in storage. The funds used to purchase this helium became a debt owed by the program. This book examines urgent issues facing BLM''s storage and sale of helium reserves and perspectives of users.

DKK 890.00
1

Youth in the Adult Criminal Justice System - - Bog - Nova Science Publishers Inc - Plusbog.dk

Youth in the Adult Criminal Justice System - - Bog - Nova Science Publishers Inc - Plusbog.dk

Since the world''s first juvenile court was founded in Chicago, our legal system has recognised a separate mandate to rehabilitate youth with an approach that is different than adults. Today, all 50 states and the District of Columbia and the federal government have two distinct systems for dealing with adults and juveniles, and corrections systems kept pace by developing different systems for dealing with the youth. While the majority of youth arrested for criminal acts are prosecuted in state juvenile justice systems, a significant proportion of youth are handled by adult criminal justice agencies. This book examines the issues, impacts and options facing corrections when they manage youth in the adult system, with a focus on raising awareness of these issues, and finding the best ways to curb juvenile delinquency in correctional settings.

DKK 890.00
1

Recent Advances in Eye Research - - Bog - Nova Science Publishers Inc - Plusbog.dk

Recent Advances in Eye Research - - Bog - Nova Science Publishers Inc - Plusbog.dk

Retinitis pigmentosa (RP) is a human disease characterised by loss of photoreceptor cells, especially rods, leading to visual disturbance and eventually blindness. Effective treatments for controlling RP remain unavailable. Infectious keratitis is a visual threatening eye condition of the cornea that can cause severe visual loss if not appropriately managed in a timely manner. Only 50% of the eyes will enjoy good visual recovery if antibiotic treatment is delayed. Causative pathogens include bacteria, virus, fungus, protozoa and parasites. A number of risk factors have been identified for microbial keratitis, including contact lens wear, recent ocular surgery or ocular trauma, ocular surface disease, dry eyes, eyelid deformities, corneal sensation impairment, chronic use of topical steroids and immunocompromised states. This book discusses the prevalence, symptoms and treatment options of eye disorders.

DKK 1079.00
1

Climatic Effects Created by Atmospheric Greenhouse Gases - Alexander Y Galashev - Bog - Nova Science Publishers Inc - Plusbog.dk

Climatic Effects Created by Atmospheric Greenhouse Gases - Alexander Y Galashev - Bog - Nova Science Publishers Inc - Plusbog.dk

The temperature on the Earth has exceeded the trend by 0.6 degrees for the last three decades and by 0.74 degrees for the last century. In 50 years a condition of deep cold snap will occur, and new warming will begin only in the beginning of the XXII century. It is connected with the approach of the next 200-years global warming cycle. Thus, forecasts concerning the change of climate are relatively inconsistent. Measures on stabilisation of the climate appear extremely expansive. This book discusses one of the natural phenomena that previously have not been included in the scope of problems related to the greenhouse effect. In this work attention is drawn to the clusterisation of greenhouse gases occurring in the troposphere due to the rapid decrease of temperature commensurate with altitude increase.

DKK 534.00
1

Manufacturing Extension Partnership Program - - Bog - Nova Science Publishers Inc - Plusbog.dk

Manufacturing Extension Partnership Program - - Bog - Nova Science Publishers Inc - Plusbog.dk

The Hollings Manufacturing Extension Partnership (MEP) program is a national network of centers established by the Omnibus Trade and Competitiveness Act. The programs objectives are to enhance productivity and technological performance and to strengthen the global competitiveness of target manufacturing firms, namely small and medium-sized U.S.-based firms. Under this program, National Institute of Standards and Technology (NIST) partners with 60 nonfederal organizations called MEP centers. The centers, located in 50 states and Puerto Rico, help target firms develop new customers and expand capacity, among other things. NIST awards federal funding to centers under annually renewed cooperative agreements, subject to the centers providing matching funds and receiving a positive performance evaluation. This book describes, over the past 5 years, how NIST spent federal MEP program funds and examines the basis for NISTs cooperative agreement award spending.

DKK 671.00
1

Potential Impacts of Northeast Refinery Reduction - - Bog - Nova Science Publishers Inc - Plusbog.dk

Potential Impacts of Northeast Refinery Reduction - - Bog - Nova Science Publishers Inc - Plusbog.dk

Reduction in refining activity in the Northeast, as reflected in recently announced plans to idle over 50% of the regional refining capacity, is likely to impact supplies of petroleum products. The transition period as supply sources shift could be problematic for Ultra-Low Sulfur Diesel (ULSD), gasoline, and jet fuel supplies. Prolonged uncertainty over the coming months with regard to the disposition and operation of important logistical assets such as pipelines, ports and storage would compound adjustment challenges. Reduced short-term product supply flexibility due to longer delivery times and potential transportation bottlenecks for sources outside the region could also increase price volatility. This book explores potential developments of Northeast refinery reductions with a focus on alternative supply options; available pipeline capacity, implications for regional transportation fuels markets, heating oil supply and prices in the Northeast, and fuel security for the military.

DKK 821.00
1

Medicaid & Treatment for People with Substance Abuse Problems - - Bog - Nova Science Publishers Inc - Plusbog.dk

Medicaid & Treatment for People with Substance Abuse Problems - - Bog - Nova Science Publishers Inc - Plusbog.dk

People with substance abuse problems often depend on Medicaid to pay for treatment. Health Care Reform, as specified in the Patient Protection and Affordable Care Act of 2010, will increase the importance of Medicaid as a payment system for chemical dependency care. Now entering its second 50 years, Medicaid is a unique partnership of federal and state agencies financing health care services for low income people. This book is an invaluable resource for patients, family members, clinicians, administrators, and policy-makers concerned about ways to pay for addiction treatment. Written by national experts, the book summarises the provisions of Medicaid of most relevance to substance abuse treatment, reviews the pertinent history of this complex and ever changing program, and describes key findings from numerous "natural experiments" such as the implementation of Medicaid managed behavioural health care as well as cutbacks in Medicaid coverage.

DKK 1132.00
1

National Strategy for Influenze Pandemic - - Bog - Nova Science Publishers Inc - Plusbog.dk

National Strategy for Influenze Pandemic - - Bog - Nova Science Publishers Inc - Plusbog.dk

In the last century, three influenza pandemics swept the globe. In 1918, the first pandemic (sometimes referred to as the Spanish Flu) killed over 500,000 Americans and more than 20 million people world-wide. One-third of the U.S. population was infected, and average life expectancy was reduced by 13 years. Pandemics in 1957 and 1968 killed tens of thousands of Americans and millions across the world. Scientists believe that viruses from birds played a role in each of those outbreaks. Today, we face a new threat. A new influenza strain -- influenza A (H5N1) -- is spreading through bird populations across Asia, Africa, and Europe, infecting domesticated birds, including ducks and chickens, and long-range migratory birds. The first recorded appearance of H5N1 in humans occurred in Hong Kong in 1997. Since then, the virus has infected over 200 people in the Eastern Hemisphere, with a mortality rate of over 50 percent.

DKK 1034.00
1

Mexico - Maria L Castro - Bog - Nova Science Publishers Inc - Plusbog.dk

Mexico - Maria L Castro - Bog - Nova Science Publishers Inc - Plusbog.dk

Mexico''s economic, political and societal issues have become major points of interest to countries all over the globe. Mexico is the second leading market for U.S. exports after Canada, and is the third most important source of U.S. imports after Canada and China. The United States is Mexico''s most important customer by far, receiving about 80% of Mexico''s exports, including petroleum, automobiles, auto parts, and winter vegetables, and providing about 50% of Mexico''s imports. The United States is the source of over 60% of foreign investment in Mexico, and the primary source of important tourism earnings. Mexico is also the leading country in Latin America in terms of U.S. investment, with the total stock of U.S. investment being about $85 billion in 2006. This book presents in-depth analyses of such issues such as foreign policy, political reform, and overall economic developments.

DKK 890.00
1