für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Bioreactors are the heart of any bioprocess operations. Currently there is a growing need for an efficient production of recombinant human therapeutic proteins worldwide. Most of the biotechnology based industries prefer Pichia pastoris as a host system for producing recombinant human therapeutic proteins because of the high cell density and product yield obtained from this particular species. This book explains the step by step approach for designing a bioreactor for producing recombinant human proteins through Pichia pastoris. The protein used in our study is only a model for this work. The novel design calculation methods presented in this book is very easy to learn and easy for the designers and students to design an efficient bioreactor for producing any proteins or enzymes in an industrial scale by only changing the few variables such as the empirical formula of the microbe and product of interest, operating conditions etc. ····· 10361101298
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Convective and microwave-vacuum drying are the two drying techniques which have been well implemented for the drying of foodstuffs since years. One interesting question is how the combination of those two drying techniques can help to improve the quality of dried foodstuffs. The combination of convective and microwave-vacuum drying was implemented with a new modular drying processor to dry red bell pepper and model food in such a way which could result in minimising the degradation of vitamin C. In three sets of combined processes, the products were convective dried up to 70 % (first set), 50 % or 40 % (second set) and 30 % (third set) of initial weight at first and followed by microwave-vacuum drying till 15 % w.b. moisture content. The determined convective drying curves were used to calculate the Fick`s and self diffusion coefficients of those foodstuffs to get an overview of the diffusional behaviour of water. These analyses would help food manufacturers for implementing proper drying technique to preserve red bell pepper for different processing requirements. At the same time model food could be used for proper evaluation of the degradation kinetics of vitamin C during drying. ····· 10361101242
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray By the grace of GOD, in this chatni we tried to present a line of action for investigators and researchers to adhere and follow to tackle the common and complex problems of daily life and of technical life. A student may find fuzzy logic/algorithm pictured with phenol/health/chesty reading biosorption,capacity,temerature akin and cadre feeling research oriented worthy style of salt taste in huuuge literature finishing towards adsorption, chemical technology and mass transfer band. One need to recognize the problem, then how to react to that problem is the main part to be established. Majority of problems are not solved because of not having been recognized well. A recognized problem is always solved to day or to mmorrow. We are presenting a way to look at the problems in a way that those problems become interesting and their solution, resolution, desolution and dissolution may be done again and again without any trouble. This is a template for writing write ups and finding stages for different actors to perform well and good for some time. The feed back for this knee of the bee is always welcomed. ····· 10361101083
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book entitled - Formulation variables of Transdermal Drug Delivery Systems: Gels Contains detailed formulation Study of drug release behaviour and rheological properties of gels. inclusion of ingredients such as hydroxy propyl cellulose,carboxy methyl ccellulose, sodium lauryl sulphate , tween etc plays a important role in drug release and formulation behaviour. The importance of ingredients can be understand only after the precise delivery of drug at a determined or predetermined rate. ····· 10361101049
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Biomedical shape memory alloys are required to have a superior corrosion resistance, biocompatibility and stable shape memory properties. Among many shape memory alloys, only NiTi alloys have been widely applied for biomedical applications, because they satisfy the above requirements. However, it has been pointed out that pure nickel is a toxic element and cause nickel hypersensitivity. It is preferable to develop absolutely safe nickel free titanium based shape memory alloys composed of non-toxic elements such as niobium for biomedical applications. In this book, the effect of molybdenum addition in Ti-Nb binary alloy was investigated. Two alloys with varying compositions namely alloy 1 (Ti-26at%Nb) and alloy 2 (Ti-26at%Nb-0.1at%Mo) were developed. After homogenization and cold rolling, samples of dimensions 30×3×0.86 mm were prepared using diamond cutting machine. The prepared samples were solution treated and then subjected to different tests to evaluate their properties. There is slight increase in micro-hardness (Hv) with increase in molybdenum. XRD spectra revealed the presence of two phases in the solution treated samples, -martensite (Ti4Nb) and retained austenite ( ). ····· 10361100852
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray India is the home to more than 500 flowering plants that can yield dyes. Though there is a large plant resource base, little has been exploited so far. An Introduction to FLORAL DYES provides a precise technical knowledge about some of these flowering plants along with the basic principles of extraction and application of the floral dye in Textile Industry and in Powder - Gulal Industry. These floral dyes are non toxic, non allergic to human skin, easily available and more economical. Some natural dye sources produce truly exquisite shades and are more economical to purchase than synthetic dyes. The process of extraction of dye is economically viable as the raw materials are available at low cost. This technology can be used in small scale Industry as well as in large scale Industry. ····· 10361100770
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Maize is one of the raw materials for the production of dextrose by hydrolyzing of the starch. Maize dextrose is widely used in many countries as a sweetener and immediate energy sources for pharmaceutical products and many other food products as a chief component. This book is based on the research conducted on the extraction of dextrose from Ethiopian Maize Variety (BH-660). The book has a critical approach for evaluating the potential target maize varieties for starch, germ oil, gluten and dextrose production. In addition to these, the book can be also used as a reference for food process and pharmaceutical engineers. ····· 10361100672
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In today s society, textile producers and manufacturers strive to use as little harmful chemicals as possible in their finishing of textiles. Though, producing a completely chemical free fabric is nearly impossible, many companies work actively to scan and evaluate alternatives to chemical substances that have a negative effect on the environment and the human health. This book is written by two students at The Swedish School of Textiles, as a last thesis in the bachelor degree of Textile engineering. The presented work is a task handed out by a Swedish company, concerning the crease resistant finishing of their bed linen. This final work is meant to provide the collaboration partner with a global scan of potential suppliers of resins for this particular finishing. To reassure the quality of the scan, obtained resins were treated on cellulosic weaves, and later on evaluated based on the demands the collaboration partner has for easy care treated textiles. The demands concerning the content of formaldehyde and the grade of smoothness appearance retained after ten washes were followed throughout the whole project. The work has been conducted at The Swedish School of Textiles. ····· 10361100292
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rubber-toughened nanocomposites (RTNC) consisting of a series of compatibilized polyamide 6 / polypropylene (PA6/PP) blends, polyethylene-octene elastomer (POE) and organophilic modified montmorillonite (organoclay) were produced by melt compounding followed by injection moulding. Polypropylene grafted maleic anhyride (PPgMA) was used as compatibilizer. The incorporation of organoclay significantly increased the stiffness and strength but at the expense of the toughness. Conversely, the incorporation of the POE increased the toughness, while the strength and stiffness decreased. The modulus and strength of the nanocomposites was not significantly affected by types of elastomer and their functionality and the blending sequence. However, the toughness of the nanocomposites toughened by maleated elastomer was higher than the unmaleated elastomer. Two steps method gave the best mechanical properties due to its good dispersion of the organoclays and elastomer in the matrix. XRD established that the organoclay was well dispersed (exfoliated) and preferentially embedded in the PA6 phase. ····· 10361100257
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Soap can remove water hardness ions (calcium and magnesium) from hard water in the form of insoluble `lime soaps`. Might it also form heavy metal soaps when added to an aqueous dispersion of contaminated soil Some researchers have studied the use of soap to remediate wastewaters contaminated with heavy metals, but there has been no work carried out on using it to wash them out of soil. This work shows that by carefully controlling the pH and temperature of the soapy wash water it is possible to form the heavy metal soaps. These soaps are insoluble in water and float to the surface where they can be skimmed off. This therefore provides a new, very simple, cost effective method of remediating soils contaminated with heavy metals. Whilst the results to date hold much promise there is still a significant amount of work that needs to be carried out to optimise the process this work will hopefully stimulate further research in this important field. ····· 1036199941
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Since the first energy crisis in the early 1970s, much research has been devoted to the development of efficient systems that would enable the absorption and conversion of solar light into useful chemical energy sources. Hydrogen generated from renewable sources of energy has the potential to replace fossil fuels in the future, whereas renewable hydrogen production is not popular yet because the cost is still high. This thesis investigates the use of layered perovskite type materials as photocatalysts for visible light driven water splitting. This treatise focuses on the synthesis and characterization of photocatalysts which are suitable for production of hydrogen from solar light irradiation in photoreactor. ····· 1036199444
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In recent years, nanocomposite materials have been the subjects of intensive research due to their unique properties and numerous potential applications in heterogeneous catalysis, high-k dielectric materials, optical wave guides, paints, antibacterial agent, and fillers for thin paper. Manipulation of their sizes, shapes, microstructures, surface activity, and surface areas is crucial to improving their characteristic properties: catalytic activity, photoactivity, chemical durability, and their optical and thermal properties. The properties of final product strongly depend on the properties of these composites. Unfortunately, large scale economic industrial production of the composites is hampered by three main factors: (i) the use of high-cost and hazardous alkoxides (TEOS or TMOS) in the sol-gel synthesis (ii) the use of expensive autoclaves for the hydrothermal treatment, and (iii) long synthesis period (up to 7 days, in some cases). In this book, we report rapid, versatile, controllable, reproducible, and economical approaches to synthesizing nanocomposites with desired properties. The final products are superior alternative for large scale/industrial economic production. ····· 1036199357
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book describes the principles and construction plans of grey water treatment chains for the different treatment options. The main aim is to sensitizing and encouraging national, regional and municipal water and environmental sanitation authorities and agencies to integrate grey water management into their development policies and programmers. The book consists of five chapters. Chapter one includes general introduction about grey water definition, characterization, uses, and recycling. Chapter two summarizes the different grey water treatment methodologies. Chapter three presents case studies for the application of grey water treatment systems in some developing countries. Chapter four deals with the evaluation of different grey water treatment systems produced commercially worldwide based on an evaluation strategy according to specific ranking system. In chapter five, a description for a newly developed cost effective treatment system designed and executed by R&D TECH is shown. As an outcome form the work, we designed software to be used for cost analysis of the different grey water treatment systems and will be included with the book. ····· 1036199090
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Magnetically Assisted Fluidized Bed (MAFB) is a novel technology where an external magnetic field interacts with magnetically susceptible particles. The magnetic field creates two types of forces: external and interparticle forces. The magnetic field decays linearly from bottom to top, having its maximun at distributor plate. A mathematical model based on interaction of ideal dipoles is proposed to account for the interparticle magnetic force. Alginate beads, containing ferromagnetic powder, are used as discrete phase and tap water as the fluidizing media. Experiments of pressure drop, bed expansion, mixing-segregation, and selective magnetic separation in a cylindrical and rectangular columns are tested. The fluid dynamics and particle motion are simulated by Computational Fluid Dynamics (CFD) and Particle Discrete Method (DPM), respectively. The CFD uses the SIMPLE method to integrate the volume-averaged Navier-Stokes equations and the DPM is based on the Newton equation of motion. A FORTRAN code, named AZTECA, is developed to simulate all experiments, handling almost 4,000 particles in a 2-D layer. The data post-processing is done with a Visual Basic code, named BOLITAS. ····· 1036198758
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Large scale nonlinear programming (NLP) has proven to be an e ective framework for obtaining pro t gains through optimal process design and operations in chemical engineering. The focus of both academia and industry on larger and more complicated problems requires further development of numerical algorithms which can provide improved computational e ciency. The primary purpose of this book is to develop e ective problem formulations and an advanced numerical algorithms for e cient solution of these challenging problems. In this book, we develop an advanced parallel solution strategy for nonlinear programming problems. The e ectiveness of this modern tool is demonstrated on a wide range of chemical problem classes including air separation unit, water network, and heat-integrated distillation columns. ····· 1036198697
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A safe and reliable delivery of food has emerged as one of the major industrial concerns of our time.some 30 percent of food losses in developing countries are the direct result of improper food packaging. Contamination of food products by pathogenic bacteria has emerged as a serious public concern. Bacteria such as Listeria monocytogenes, Bacillus cereus, Escherichia coli (O157:H7), Staphylococus aureus, Salmonella typhimurium, and Shigella sonnei are identified as the most potent pathogens associated with food borne illnesses. Inherent antibacterial properties and film-forming ability of starch-saponin mix make it ideal for use as an antimicrobial packaging material. The results have clearly shown that a release rate of the saponin from the films can be modified by changing the composition of the initial casting solution. The maximum antimicrobial activities and tensile strength of the films increased with an increase in an amount of the saponin in the casting solution. ····· 1036198672
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The pyrolysis process consists of the thermal degradation of biomass feedstock, in the absence of oxygen/air, leading to the formation of solid (charcoal), liquid (tar and other organics) and gaseous products (methane, ethane, carbon monoxide, etc). Pyrolysis can be used as an independent process for the production of useful energy (fuels) and/or chemicals. It also occurs as the first step in gasification or combustion process. An understanding of the chemical processes and transport mechanisms of biomass pyrolysis is important for many applications including optimization of boilers and large scale furnaces, estimating the dominant design variable in pyrolysis reactor and gasifier. This book focuses on modeling and simulation studies of pyrolysis of biomass particles. Dominant design variables are identified for pyrolysis process through sensitivity analysis. The models on pyrolysis of biomass are corrected, updated, and also new models are proposed by incorporating the shrinkage effect. The results are very useful for the design of pyrolysis reactor and gasifier. This book is suitable for students in all engineering discipline. It will also be helpful to research scientist. ····· 1036198452
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Fuzzy Logic (FL) has emerged as a method challenging stochastic methods in modelling uncertainty. Here deterministic, stochastic and FL methods for the assessment of spare capacity of pharmaceutical high purity water systems (HPW) are compared with the goal of finding the most appropriate method of modelling uncertainty for industrial use. The results provide evidence which suggests that stochastic methods are superior to FL in simulating uncertainty in chemical plant utilities including HPW systems in typical cases whereby extreme events, for example peaks in demand, or day-to-day variation rather than average values are of interest. The average output or other statistical measures may, for instance, be of interest in the assessment of workshops. Furthermore the results indicate that the stochastic model should be used only if found necessary by a deterministic simulation. Consequently, this work concludes that either deterministic or stochastic methods should be used to simulate uncertainty in chemical plant utility systems and by extension some process system because extreme events or the modelling of day-to-day variation are important in capacity extension projects. ····· 1036198403
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray To screen amine solvents for application in CO2 capture from coal-fired power plants, the equilibrium CO2 partial pressure and liquid film mass transfer coefficient were characterized for CO2-loaded and highly concentrated aqueous amines at 40 100 °C over a range of CO2 loading. Promising solvents with large CO2 capacity, fast mass transfer rate and moderately high heat of absorption were identified. A rigorous thermodynamic model was developed for a selected amine solvent in the framework of the Electrolyte Nonrandom Two-Liquid model using the vapor-liquid-equilibrium and liquid speciation data. The lab-scale mass transfer rate data was represented with a rate-based model created in Aspen Plus®, in which the reaction rate was described with activity-based termolecular mechanism. The rate-based model can be used for design and simulation of large-scale CO2 capture process. ····· 1036198272
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The use of surfactants in Home and Personal Care products (HPC) is of vital importance due to their wide range of application. Surfactants are the major player in HPC because of their ability in wetting, spreading, dispersing, sticking, solubilization and dissolution. It is then clear that most of the challenges and/or opportunities towards benign (green) surfactant will automatically affect the HPC industry directly or indirectly. Therefore, It is worthy understanding the perspective and views of each of the stakeholders and representatives appearing in the supply chain of the surfactants in order to explore and better understand opportunities and challenges for greener products and how green chemistry can be applied to improve their sustainability.The book presents the views from the stakeholders of Surfactant supply chain which are Suppliers of raw material for surfactants, manufactures and formulators of HPCs, retailers, consumers, NGOs, trade association and water treatment companies. The comparison between developed (UK) and developing countries (TZ) is also discussed. ····· 1036192608
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Biodiesel has been a promising alternative clean fuel to fossil fuels, which reduces the emissions that are released by fossil fuels and possibly reduce the energy crisis caused by the exhaustion of petroleum resources in the near future. Biodiesel is replacing diesel as an alternative fuel for internal combustion engines. In this study biodiesel blend B20 and ULSD (B0) were combusted to investigate how the engine conditions influence the emission concentrations of H2, CO, CH4, CO2, N2 and morphological data of particulate matter. From our results under varied tested conditions we have incurred that, for low H2 emissions, B20 combustion under low temperatures and high pressures is preferred. For low CO emissions, B20 combustion under high temperatures and pressures is preferred. For low N2 emissions, ULSD combustion under low temperatures and high pressures is preferred. For low CH4 emissions, ULSD combustion under low temperatures and high pressures is preferred. For low CO2 emissions, ULSD combustion under low temperatures and low pressures is preferred. ····· 1036192530
für 59.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the wake of energy crisis, the alternatives for energy sources are much demanded. the use of herbs and plants in food industry has a long history. the disversity among the components of the plants has resulted in their use in many applications including flavors and medicine. The conventional methods for the extraction of essential oils such as Hydrodistillation (HD)and soxhlet in which the essential oils are evaporated by heating a mixture of water and plant materials followed by the liquefaction of the vapors in a condenser. These methods suffers from several disadvantages including losses in the volatile compounds, long extraction time and degradation of some components through thermal process.Microwave heating has an incontestable place in analytical and organic laboratory practices. In this book, microwave-assisted hydrodistillation (MAHD)was used to extract an essential oil from ginger. Results were compared with conventional hydrodistillation method. Results show that MAHD faster in extraction time, yield and costs compared with HD method. ····· 1036192448
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Plant phenolics represent a huge number of natural compounds that are of great interest and importance nowadays due to their various pharmacological activities. The aqueous methanolic extract of Acacia Saligna was applied on Polyamide 6S and eluted with water and water/ethanol mixtures with gradual increase in concentration. The successive extraction of plant afforded the isolation of sixteen phenolic compounds, among them Catechin, 7-O-Galloyl-Catechin, Myricetin-3-O- -L-arabinopyranoside, Quercetin-3-O- -D-glucopyranoside, Quercetin-3-O- -L-arabinopyranoside, Apigenin-7-O- -D-glucopyranoside and Luteolin-7-O- -D-glucopyranoside which isolated for the first time from Acacia Saligna. Today, the main thrust aspect in the selection of products is safety. The best product selection must take into account non-toxic and safer starting materials as well as finished products. Whereby, the investigation showed that the dyeing and antimicrobial finishing of chrome-tanned leather with Acacia saligna leaves extract will provide an anti-candidal finishing for different leather products with good mechanical properties and fastness properties. ····· 1036192271
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book gives a general overview on the epoxidation process of cottonseed oil. Several methods of epoxidation are available but conventional chemical method is adopted for large scale production. This book also focused on the finding of the potential utility of epoxidized cottonseed oil and developing newer means for its widespread applications. Vegetable oil finds sustainable and renewable source of raw material. The unsaturation present in cottonseed oil can be chemically modified to a value added product by a reaction called epoxidation . Due to the high reactivity of the oxirane ring epoxides can also act as a raw material for synthesis of variety of chemicals such aspolyols, glycols, olefinic compounds, lubricants, plasticizer and stabilizer for polymers and their demand is increasing day by day. Apart from this the kinetics of reaction and thermodynamic properties like enthalpy, entropy, activation energy, and Gibb s free energy were studied at optimized reaction condition. The application of synthesized epoxidized oil was also studied over the epoxy system. Thus an attempt had been made to increase the economic value of the cottonseed oil by converting into epoxidized oil ····· 1036192241· 1 · ::::: · 5 ·· 6 ·· 7 ·· 8 ·· 9 ·· 10 ·· 11 · ::::: · 13 ·
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