Download or read book Measurement of Wood Moisture Content Above Fiber Saturation Point by Electrical Resistance written by Zhangjing Chen and published by . This book was released on 1993 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Resistance of Wood with Special Reference to the Fiber Saturation Point written by James Edson Myer and published by . This book was released on 1926 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electric Moisture Meters for Wood written by William Lanpheer James and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Probe for Accurate Determination of Moisture Content of Wood Products in Use written by John E. Duff and published by . This book was released on 1966 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Moisture Content Measurements in Wood and Wood Based Materials Advancements in Sensor Calibration and Low Moisture Content Regime written by Nitin Shukla and published by . This book was released on 2014 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood is a major structural material used in the construction of residential and commercial buildings. In situ and continuous measurement of moisture in a wood element of the building envelope is critical in preventing the occurrence of moisture related damages to the building structure, and also helps in determining the thermal and energy performance of the system. Moisture content of a wood assembly may serve as an indicator of the effectiveness and potential condensation-related damage to the adjoining thermal insulation layers in the building envelope. Typically, the moisture content in a wood component is determined by measuring the electrical resistance across a pair of metallic pin sensors, with correlation or calibration between resistance and moisture content already established for the studied wood species. As the wood dries from fiber saturation point (FSP) to equilibrium moisture content (EMC), the resistance typically increases by 4 orders of magnitude from hundreds of k? to G?. Typical resistance measurement instrumentation schemes such as voltage divider and multimeters are often incapable to cover this wide dynamic range of resistance. To further complicate the measurements, low EMC values of 5 %-10 % range correspond to very high resistances in the range of M?-G?, a regime that has remained challenging to measure because of lower current and leakage issues. To circumvent these issues, we developed an instrumentation methodology based on a simple voltage divider circuit in combination with a data-logger with reference resistors selected in such a manner to maximize the dynamic range of the measurement with sufficient accuracy and resolution for higher resistance range. The results showed significant improvements in the dynamic range and resolution for the MC measurements.
Download or read book Control of Moisture Content and Shrinkage of Wood written by and published by . This book was released on 1951 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Springer Handbook of Wood Science and Technology written by Peter Niemz and published by Springer Nature. This book was released on 2023-04-01 with total page 2064 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook provides an overview on wood science and technology of unparalleled comprehensiveness and international validity. It describes the fundamental wood biology, chemistry and physics, as well as structure-property relations of wood and wood-based materials. The different aspects and steps of wood processing are presented in detail from both a fundamental technological perspective and their realisation in industrial contexts. The discussed industrial processes extend beyond sawmilling and the manufacturing of adhesively bonded wood products to the processing of the various wood-based materials, including pulp and paper, natural fibre materials and aspects of bio-refinery. Core concepts of wood applications, quality and life cycle assessment of this important natural resource are presented. The book concludes with a useful compilation of fundamental material parameters and data as well as a glossary of terms in accordance with the most important industry standards. Written and edited by a truly international team of experts from academia, research institutes and industry, thoroughly reviewed by external colleagues, this handbook is well-attuned to educational demands, as well as providing a summary of state-of-the-art research trends and industrial requirements. It is an invaluable resource for all professionals in research and development, and engineers in practise in the field of wood science and technology.
Download or read book Wood Microbiology written by Robert A. Zabel and published by Academic Press. This book was released on 2020-03-04 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood Microbiology, Second Edition, presents the latest advances in wood decay and its prevention. Coverage includes classification of fungi and bacteria, factors affecting growth and survival, fungal metabolism, and wood chemistry. There are also chapters that focus on the anatomical aspects, chemical changes, and ultrastructural effects of wood decay. Additionally, this book discusses major issues associated with wood decay, detecting decay, and how to take protective action against it. This is a one-stop reference resource for wood scientists, wood processing and preserving professionals, foresters and forest pathologists, as well as students of forestry, and wood science and technology courses. It is authored by two leading experts with over 80 years of experience working with timber durability. Provides updated taxonomy and classification of decay groups Presents detailed descriptions of anatomical, chemical, and ultrastructural aspects of wood decay Includes discussions on major issues associated with decay, how to detect decay and preventative measures
Download or read book Preservation Treatment of Wood by Pressure Methods written by James Donald MacLean and published by . This book was released on 1952 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Wood Science and Technology written by Franz F.P. Kollmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern forest products research had its start hardly fifty years ago. Today we are in a position to apply the title "wood science" to the field of wood technology that is based on scientific investigation, theoretical as well as experimental. It is this research that fosters new uses for wood as a raw material and that creates the foundation for new industries for the manufacture of wood-base materials such as plywood, laminated products, particle and fiber board and sand wich construction. Wood technology in its broadest sense combines the disciplines of wood anatomy, biology, chemistry, physics and mechanical technology. It is through this interdisciplinary approach that progress has been made in wood seasoning, wood preservation methods, wood machining, surfacing and gluing, and in the many other processes applied in its utilization. In 1936 the senior author published a book entitled, "Technologie des Holzes", which was a first approach to a universal reference book on wood technology. The first edition of Volume I of the Textbook of Wood Technology, co-authored by H. P. BROWN, A. J. P AN SHIN , and C. C. FORSAITH, was published in 1948. An indication of the rapid development of this field can be gained from the fact that the second edition of "Technologie des Holzes und der Holzwerkstoffe", completely revised, was needed by 1951. It contains 2233 pages compared with the 764 pages of the 1936 edition.
Download or read book Preservative Treatment of Wood by Pressure Methods written by J. D. MacLean and published by . This book was released on 1952 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preservative Treatment of Wood by Pressure Methods written by James Donald MacLean and published by . This book was released on 1960 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Forest Service Research Note FPL written by and published by . This book was released on 1963 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 1924 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Limited Evaluation of Physical and Mechanical Properties of Nepal Alder Grown in Hawaii written by C. C. Gerhards and published by . This book was released on 1964 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Heat Pump Assisted Wood Drying written by Vasile Minea and published by CRC Press. This book was released on 2018-08-06 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses conventional as well as unconventional wood drying technologies. It covers fundamental thermophysical and energetic aspects and integrates two complex thermodynamic systems, conventional kilns and heat pumps, aimed at improving the energy performance of dryers and the final quality of dried lumber. It discusses advanced components, kiln energy requirements, modeling, and software and emphasizes dryer/heat pump optimum coupling, control, and energy efficiency. Problems are included in most chapters as practical, numerical examples for process and system/components calculation and design. The book presents promising advancements and R&D challenges and future requirements.
Download or read book Effect of Loading Rate on the Edgewise Compressive Strength of Corrugated Fiberboard written by Russell Charles Moody and published by . This book was released on 1966 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
