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A Review on the Development of Processing Techniques for the Production and Casting of Al-Alloy and Metal Matrix Composite Material
Liquid metallurgy is a cost-effective way to produce aluminium (Al) alloy products. Alloying and reinforcing in aluminium-matrix is the most practiced one in the liquid metallurgical technique, especially for mass production. Numerous developments have been observed in this technique over the past decade. This paper reviews most of the developments in processing techniques, along with providing basic information and parameters. Also, the shortcomings of each process have been significantly summarized, and potential research opportunities have been discussed. The developments in the batch and mass liquid metallurgical technique for Al have been discussed. The latest development recommendation for processing parameters and techniques to reduce the cost and time of production has been studied in detail. Based on the literature review and various published patents, the most relevant technique is a bottom-feeding continuous casting technique to produce metal matrix composites and aluminium alloys.
Journal Article
Producing great sound for film and video : expert tips from preproduction to final mix
\"Make your film and video projects sound as good as they look with this popular guide. Learn practical, timesaving ways to get better recordings, solve problems with existing audio, create compelling tracks, and boost your filmmaking to the next level! In this fourth edition of Producing Great Sound for Film and Video, audio guru Jay Rose revises his popular text for a new generation of filmmakers. You'll find real world advice and practical guidelines for every aspect of your soundtrack: planning and budgeting, field and studio recording, editing, sound effects and music, audio repair and processing, and mixing. The combination of solid technical information and a clear, step-by-step approach has made this the go-to book for producers and film students for over a decade. This new edition includes: - Insights and from-the-trenches tips from film and video professionals - Advice on how to get the best results from new equipment including DSLRs and digital recorders - Downloadable diagnostics and audio examples you can edit on your own computer - Instruction for dealing with new regulations for wireless mics and broadcast loudness - Techniques that work with any software or hardware - An expanded \"How Do I Fix This?\" section to help you solve problems quickly - An all new companion website (www.GreatSound.info) with audio and video tutorial files, demonstrations, and diagnostics Whether you're an aspiring filmmaker who wants rich soundtracks that entertain and move an audience, or an experienced professional looking for a reference guide, Producing Great Sound for Film and Video, Fourth Edition has the information you need\"-- Provided by publisher.
Book
In Vitro Gas Production Techniques: Preservation Methods and Challenges in Ruminant Research – A Review
gas production techniques (IVGPTs) are crucial in animal nutrition research for evaluating the fermentative characteristics and nutritional value of feed ingredients and diets. Gas production (GP) is a key parameter in fermentation. Rumen fluid (RF) and faeces (FA) are the primary sources of microbial inoculum for fermenting microorganisms. The storage methods used for these inocula present both advantages and disadvantages. Traditionally, rumen cannulation was used to collect RF samples. However, researchers are exploring better alternative methods, such as stomach tube (ST) collection, which offers comparable statistical power and feasibility to cannulation. However, this approach is also challenging due to animal stress and saliva contamination, which emphasize the need for more representative sampling methods. Using rumen fluid from slaughtered animals offers an ethical approach, with the advantages of cost and availability. FA provides a viable alternative, especially for hindgut fermentation studies; however, in ruminants, differences in the microbial compositions of FA and RF need to be considered. These differences may in turn affect the GP rates and fermentation kinetics. Storage of microbial inocula can standardise
studies, ensuring repeatability and reliability. The use of cryoprotectants such as glycerol and dimethyl sulfoxide (DMSO) may help to preserve microbial activity during the freezing-thawing process, as they help promote bacterial recovery. This review provides an overview of the two main inocula used in IVGPTs and their preservation methods, highlighting both their advantages and limitations.
Journal Article
Digital imaging in popular cinema
This book discusses how digital imaging can mimic, transform, shape and generate both fantastical and mundane objects and phenomena from scratch, and how our cultural ideas about digital imaging can influence meaning within a film, a scene or even a single shot.
Book
Sustainability Challenges of Phosphorus and Food: Solutions from Closing the Human Phosphorus Cycle
The Green Revolution has led to a threefold growth in food production in the last 50 to 75 years, hut increases in crop production have required a concurrent increase in the use of inorganic phosphorus as fertilizer. A sustainable phosphorus supply is not assured, though, and food production depends on mineral phosphorus supplies that are nonrenewable and are being depleted. Phosphorus is effectively a nonsubstitutable necessity for all life. Because mineral phosphorus deposits are not distributed evenly, future phosphorus scarcity may have national security implications. Some projections show economically viable mineral reserves becoming depleted within a few decades. Phosphorus-induced food shortages are therefore a possibility, particularly in developing countries where farmers are more vulnerable to volatile fertilizer prices. Sustainable solutions to such future challenges exist, and involve closing the loop on the human phosphorus cycle. We review the current state of knowledge about human phosphorus use and dependence and present examples of these sustainable solutions.
Journal Article
Recent trends in biochar production methods and its application as a soil health conditioner: a review
Interest in biochar production from organic waste has been growing in recent years due to its broad applicability, availability, and smoother production. Biochar production techniques are being continuously modernized to improve the production rate and quality. Though numerous methods have been reported in the recent past, a systematic classification of the same is yet to be explored. Based on the advancement of the techniques being employed for biochar production and modification of conventional methods, we have categorized all major techniques of biochar production into two primary classes. In the traditional approach, ancient methods and conventional pyrolysis techniques (Slow and Fast pyrolysis) are included, whereas, in modern approaches, several advanced technologies such as Gasification, Torrefaction, Hydrothermal carbonization, Electro-modification, along with modified traditional methods (Flash pyrolysis, Vacuum pyrolysis, and Microwave pyrolysis) are comprised. Further, the systematic review was intended to evaluate various types of feedstocks (agricultural biomass, forest/woody biomass, aquatic biomass, urban waste, and paper waste) with their potential to produce biochar. It was observed that the feedstock containing high cellulose was found to be helpful in improving the overall properties of biochar, including enhanced adsorptive action and retention of nutrients.
Journal Article
Metal Additive Manufacturing: A Review
This paper reviews the state-of-the-art of an important, rapidly emerging, manufacturing technology that is alternatively called additive manufacturing (AM), direct digital manufacturing, free form fabrication, or 3D printing, etc. A broad contextual overview of metallic AM is provided. AM has the potential to revolutionize the global parts manufacturing and logistics landscape. It enables distributed manufacturing and the productions of parts-on-demand while offering the potential to reduce cost, energy consumption, and carbon footprint. This paper explores the material science, processes, and business consideration associated with achieving these performance gains. It is concluded that a paradigm shift is required in order to fully exploit AM potential.
Journal Article
An Overview on the Big Players in Bone Tissue Engineering: Biomaterials, Scaffolds and Cells
Presently, millions worldwide suffer from degenerative and inflammatory bone and joint issues, comprising roughly half of chronic ailments in those over 50, leading to prolonged discomfort and physical limitations. These conditions become more prevalent with age and lifestyle factors, escalating due to the growing elderly populace. Addressing these challenges often entails surgical interventions utilizing implants or bone grafts, though these treatments may entail complications such as pain and tissue death at donor sites for grafts, along with immune rejection. To surmount these challenges, tissue engineering has emerged as a promising avenue for bone injury repair and reconstruction. It involves the use of different biomaterials and the development of three-dimensional porous matrices and scaffolds, alongside osteoprogenitor cells and growth factors to stimulate natural tissue regeneration. This review compiles methodologies that can be used to develop biomaterials that are important in bone tissue replacement and regeneration. Biomaterials for orthopedic implants, several scaffold types and production methods, as well as techniques to assess biomaterials’ suitability for human use—both in laboratory settings and within living organisms—are discussed. Even though researchers have had some success, there is still room for improvements in their processing techniques, especially the ones that make scaffolds mechanically stronger without weakening their biological characteristics. Bone tissue engineering is therefore a promising area due to the rise in bone-related injuries.
Journal Article
Highly Anisotropic Steel Processed by Selective Laser Melting
For additive manufacturing of metals, selective laser melting can be employed. The microstructure evolution is directly influenced by processing parameters. Employing a high energy laser system, samples made from austenitic stainless steel were manufactured. The microstructure obtained is characterized by an extremely high degree of anisotropy featuring coarse elongated grains and a 〈001〉 texture alongside the build direction during processing. Eventually, the anisotropy of the microstructure drastically affects the monotonic properties of the current material.
Journal Article