Kamara Sheku (30 results)

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Paperback. Condition: new. Paperback. Dissolved organic carbon (DOC) levels in aquatic systems are influenced by various factors ranging from anthropogenic perturbations (e.g. land-use systems) to natural processes related to weather phenomena. It is estimated that up to 30 % of the total DOC in streams is contributed by terrestrial leaf litter alone. In the present study, leaf litter-derived DOC from terrestrial (Quercus robur) and aquatic (Phragmites australis) plants was used to study the impact of leaf-litter decomposition products on the aquatic macrophytes Ceratophyllum demersum and Lemna minor. Photosynthetic oxygen release, marker enzymes of the antioxidative system, glutathione redox dynamics and growth rate were used as testing parameters. The results indicate that leaf-litter DOC has the potential to impact the tested aquatic macrophytes by imposing oxidative stress, slowing down photosynthesis and reducing growth rate. However, elevated enzyme activities and overexpressed glutathione reductase gene provided protection against lipid peroxidation. Species-specific phenotypic plasiticity was manisfested by both macrophytes, with a potential by C. demersum to acclimate, depending on the source of DOC.Given the magnitude of the effects observed on the macrophytes at environmentally realistic DOC concentrations, especially on growth rate reduction, it is suggested that both allochthonous and autochthonous leaf litter has the potential to structure aquatic ecosystems. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

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Hardback. Condition: New. Fundamentals of Additive Manufacturing for the Practitioner Discover how to shift from traditional to additive manufacturing processes with this core resource from industry leadersFundamentals of Additive Manufacturing for the Practitioner delivers a vital examination of the methods and techniques needed to transition from traditional to additive manufacturing. The book explains how traditional manufacturing work roles change as various industries move into additive manufacturing and describes the flow of the typical production process in additive manufacturing. Detailed explorations of the processes, inputs, machine and build preparation, post-processing, and best practices are included, as well as real-world examples of the principles discussed within.Every chapter includes a problems and opportunities section that prompts readers to apply the book's techniques to their own work. Diagrams and tables are distributed liberally throughout the work to present concepts visually, and key options and decisions are highlighted to assist the reader in understanding how additive manufacturing changes traditional workflows. Readers will also benefit from the inclusion ofA thorough introduction on how to move into additive manufacturing, including the identification of a manufacturing opportunity and its characteristicsAn exploration of how to determine if additive manufacturing is the right solution, with descriptions of the origins of additive manufacturing and the current state of the technologyAn examination of the materials used in additive manufacturing, including polymers, composites, metals, plasters, and biomaterialsA discussion of choosing an additive manufacturing technology and processPerfect for mechanical engineers, manufacturing professionals, technicians, and designers new to additive manufacturing, Fundamentals of Additive Manufacturing for the Practitioner will also earn a place in the libraries of technical, vocational, and continuing education audiences seeking to improve their skills with additive manufacturing workflows.

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Hardcover. Condition: new. Hardcover. Fundamentals of Additive Manufacturing for the Practitioner Discover how to shift from traditional to additive manufacturing processes with this core resource from industry leadersFundamentals of Additive Manufacturing for the Practitioner delivers a vital examination of the methods and techniques needed to transition from traditional to additive manufacturing. The book explains how traditional manufacturing work roles change as various industries move into additive manufacturing and describes the flow of the typical production process in additive manufacturing. Detailed explorations of the processes, inputs, machine and build preparation, post-processing, and best practices are included, as well as real-world examples of the principles discussed within.Every chapter includes a problems and opportunities section that prompts readers to apply the books techniques to their own work. Diagrams and tables are distributed liberally throughout the work to present concepts visually, and key options and decisions are highlighted to assist the reader in understanding how additive manufacturing changes traditional workflows. Readers will also benefit from the inclusion ofA thorough introduction on how to move into additive manufacturing, including the identification of a manufacturing opportunity and its characteristicsAn exploration of how to determine if additive manufacturing is the right solution, with descriptions of the origins of additive manufacturing and the current state of the technologyAn examination of the materials used in additive manufacturing, including polymers, composites, metals, plasters, and biomaterialsA discussion of choosing an additive manufacturing technology and processPerfect for mechanical engineers, manufacturing professionals, technicians, and designers new to additive manufacturing, Fundamentals of Additive Manufacturing for the Practitioner will also earn a place in the libraries of technical, vocational, and continuing education audiences seeking to improve their skills with additive manufacturing workflows. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

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Condition: Sehr gut. Zustand: Sehr gut | Seiten: 40 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar.

Paperback. Condition: new. Paperback. Dissolved organic carbon (DOC) levels in aquatic systems are influenced by various factors ranging from anthropogenic perturbations (e.g. land-use systems) to natural processes related to weather phenomena. It is estimated that up to 30 % of the total DOC in streams is contributed by terrestrial leaf litter alone. In the present study, leaf litter-derived DOC from terrestrial (Quercus robur) and aquatic (Phragmites australis) plants was used to study the impact of leaf-litter decomposition products on the aquatic macrophytes Ceratophyllum demersum and Lemna minor. Photosynthetic oxygen release, marker enzymes of the antioxidative system, glutathione redox dynamics and growth rate were used as testing parameters. The results indicate that leaf-litter DOC has the potential to impact the tested aquatic macrophytes by imposing oxidative stress, slowing down photosynthesis and reducing growth rate. However, elevated enzyme activities and overexpressed glutathione reductase gene provided protection against lipid peroxidation. Species-specific phenotypic plasiticity was manisfested by both macrophytes, with a potential by C. demersum to acclimate, depending on the source of DOC.Given the magnitude of the effects observed on the macrophytes at environmentally realistic DOC concentrations, especially on growth rate reduction, it is suggested that both allochthonous and autochthonous leaf litter has the potential to structure aquatic ecosystems. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.

Condition: New. 2008. Paperback. . . . . .

Hardback. Condition: New. Fundamentals of Additive Manufacturing for the Practitioner Discover how to shift from traditional to additive manufacturing processes with this core resource from industry leadersFundamentals of Additive Manufacturing for the Practitioner delivers a vital examination of the methods and techniques needed to transition from traditional to additive manufacturing. The book explains how traditional manufacturing work roles change as various industries move into additive manufacturing and describes the flow of the typical production process in additive manufacturing. Detailed explorations of the processes, inputs, machine and build preparation, post-processing, and best practices are included, as well as real-world examples of the principles discussed within.Every chapter includes a problems and opportunities section that prompts readers to apply the book's techniques to their own work. Diagrams and tables are distributed liberally throughout the work to present concepts visually, and key options and decisions are highlighted to assist the reader in understanding how additive manufacturing changes traditional workflows. Readers will also benefit from the inclusion ofA thorough introduction on how to move into additive manufacturing, including the identification of a manufacturing opportunity and its characteristicsAn exploration of how to determine if additive manufacturing is the right solution, with descriptions of the origins of additive manufacturing and the current state of the technologyAn examination of the materials used in additive manufacturing, including polymers, composites, metals, plasters, and biomaterialsA discussion of choosing an additive manufacturing technology and processPerfect for mechanical engineers, manufacturing professionals, technicians, and designers new to additive manufacturing, Fundamentals of Additive Manufacturing for the Practitioner will also earn a place in the libraries of technical, vocational, and continuing education audiences seeking to improve their skills with additive manufacturing workflows.

Buch. Condition: Neu. Neuware - Fundamentals of Additive Manufacturing for the PractitionerDiscover how to shift from traditional to additive manufacturing processes with this core resource from industry leadersFundamentals of Additive Manufacturing for the Practitioner delivers a vital examination of the methods and techniques needed to transition from traditional to additive manufacturing. The book explains how traditional manufacturing work roles change as various industries move into additive manufacturing and describes the flow of the typical production process in additive manufacturing. Detailed explorations of the processes, inputs, machine and build preparation, post-processing, and best practices are included, as well as real-world examples of the principles discussed within.Every chapter includes a problems and opportunities section that prompts readers to apply the book's techniques to their own work. Diagrams and tables are distributed liberally throughout the work to present concepts visually, and key options and decisions are highlighted to assist the reader in understanding how additive manufacturing changes traditional workflows. Readers will also benefit from the inclusion of\* A thorough introduction on how to move into additive manufacturing, including the identification of a manufacturing opportunity and its characteristics\* An exploration of how to determine if additive manufacturing is the right solution, with descriptions of the origins of additive manufacturing and the current state of the technology\* An examination of the materials used in additive manufacturing, including polymers, composites, metals, plasters, and biomaterials\* A discussion of choosing an additive manufacturing technology and processPerfect for mechanical engineers, manufacturing professionals, technicians, and designers new to additive manufacturing, Fundamentals of Additive Manufacturing for the Practitioner will also earn a place in the libraries of technical, vocational, and continuing education audiences seeking to improve their skills with additive manufacturing workflows.

Hardcover. Condition: Brand New. 224 pages. 10.10x7.20x0.70 inches. In Stock. This item is printed on demand.

Hardcover. Condition: new. Hardcover. Fundamentals of Additive Manufacturing for the Practitioner Discover how to shift from traditional to additive manufacturing processes with this core resource from industry leadersFundamentals of Additive Manufacturing for the Practitioner delivers a vital examination of the methods and techniques needed to transition from traditional to additive manufacturing. The book explains how traditional manufacturing work roles change as various industries move into additive manufacturing and describes the flow of the typical production process in additive manufacturing. Detailed explorations of the processes, inputs, machine and build preparation, post-processing, and best practices are included, as well as real-world examples of the principles discussed within.Every chapter includes a problems and opportunities section that prompts readers to apply the books techniques to their own work. Diagrams and tables are distributed liberally throughout the work to present concepts visually, and key options and decisions are highlighted to assist the reader in understanding how additive manufacturing changes traditional workflows. Readers will also benefit from the inclusion ofA thorough introduction on how to move into additive manufacturing, including the identification of a manufacturing opportunity and its characteristicsAn exploration of how to determine if additive manufacturing is the right solution, with descriptions of the origins of additive manufacturing and the current state of the technologyAn examination of the materials used in additive manufacturing, including polymers, composites, metals, plasters, and biomaterialsA discussion of choosing an additive manufacturing technology and processPerfect for mechanical engineers, manufacturing professionals, technicians, and designers new to additive manufacturing, Fundamentals of Additive Manufacturing for the Practitioner will also earn a place in the libraries of technical, vocational, and continuing education audiences seeking to improve their skills with additive manufacturing workflows. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.

Hardcover. Condition: new. Hardcover. Fundamentals of Additive Manufacturing for the Practitioner Discover how to shift from traditional to additive manufacturing processes with this core resource from industry leadersFundamentals of Additive Manufacturing for the Practitioner delivers a vital examination of the methods and techniques needed to transition from traditional to additive manufacturing. The book explains how traditional manufacturing work roles change as various industries move into additive manufacturing and describes the flow of the typical production process in additive manufacturing. Detailed explorations of the processes, inputs, machine and build preparation, post-processing, and best practices are included, as well as real-world examples of the principles discussed within.Every chapter includes a problems and opportunities section that prompts readers to apply the books techniques to their own work. Diagrams and tables are distributed liberally throughout the work to present concepts visually, and key options and decisions are highlighted to assist the reader in understanding how additive manufacturing changes traditional workflows. Readers will also benefit from the inclusion ofA thorough introduction on how to move into additive manufacturing, including the identification of a manufacturing opportunity and its characteristicsAn exploration of how to determine if additive manufacturing is the right solution, with descriptions of the origins of additive manufacturing and the current state of the technologyAn examination of the materials used in additive manufacturing, including polymers, composites, metals, plasters, and biomaterialsA discussion of choosing an additive manufacturing technology and processPerfect for mechanical engineers, manufacturing professionals, technicians, and designers new to additive manufacturing, Fundamentals of Additive Manufacturing for the Practitioner will also earn a place in the libraries of technical, vocational, and continuing education audiences seeking to improve their skills with additive manufacturing workflows. This item is printed on demand. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.