Relevant bibliographies by topics / Particle board industry

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Particle board industry'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Particle board industry"

1

Hasan Susaraie, Amir, and Mahtab Sayahi. "Study and recognition of the relationship between productivity pragmatics and quality of working life in Wood industry in Golestan province." Journal of Management and Accounting Studies 6, no. 01 (September 29, 2020): 1–8. http://dx.doi.org/10.24200/jmas.vol6iss01pp1-8.

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Objective: This study was aimed to investigate and identify components of productivity and its relationship with quality of working life in the particle board industry in Golestan province. Methodology: This research was performed as descriptive, surveying and correlational. After studying research literature and background, components and factors affecting productivity and quality of working life in chipboard industry were extracted and then chipboard industry was provided using the interview and documents of based on preliminary framework of the components extracted from the theoretical foundations. Statistical community of this study included all employees of particle board industry which were 360. Sample included employees of particle board industry in which sample size was determined using Kristy - Morgan table. Results: with regard to flexibility of labor productivity in Golestan province particle board factories and industries, finally in the estimation model, assuming other Factors to remain constant, 0.86 percent of changes from the dependent variable (overall productivity in Golestan particle board industries) are caused by changes in labor productivity in Golestan province particle board companies, in other words, if one percent improvement is created in labor productivity of particle board industry of the province, it will increase overall productivity of particle board industry of the province by 0.86 percent. Conclusion: Finally, As we know, quality of working life of employees is one of the main factors affecting labor productivity; the more quality level of labor’s working life is improved or upgraded, the more it will increase their labor productivity.
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Zvirgzds, Kristaps, Edgars Kirilovs, Silvija Kukle, and Uldis Gross. "Production of Particleboard Using Various Particle Size Hemp Shives as Filler." Materials 15, no. 3 (January 24, 2022): 886. http://dx.doi.org/10.3390/ma15030886.

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Research was performed into the use of hemp shive as a fast-growing and carbon-storing agricultural waste material in the production of particleboard for the construction industry. Hemp shives were acquired and prepared for board production with the use of milling and sieving to reach two target groups with 0.5 mm to 2 mm and 2 mm to 5.6 mm particle size ranges. The cold pressing method was used to produce hemp boards with Kleiberit urea formaldehyde resin as a binder. The boards were made as 19 mm thick single-layer parts with a density range of 300 ± 30 kg/m3, which qualifies them as low-density boards. Exploratory samples were made using milled hemp fibers with higher density. Additional components such as color pigments and wood finishes were added to test improved features over raw board samples. Tests were performed to determine moisture contents, density range, structural properties, and water absorption amounts. Produced board bending strength reached 2.4 MPa for the coarser particle group and thermal conductivity of 0.057 ± 0.002 W/(mK). The results were compared with existing materials used in the industry or in the development stage to indicate options of developed board applications as indoor insulation material in the construction industry.
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Saddikin, M., Hendri Nurdin, and Primawati Primawati. "Analysis Physical and Mechanical Of Particle Boards Raw Materials Nipah Fruit Fiber." Teknomekanik 2, no. 1 (June 2, 2019): 14–19. http://dx.doi.org/10.24036/tm.v2i1.2672.

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The raw materials of the timber industry, especially furniture, are increasingly difficult to obtain in the quantity and quality needed. The development efforts carried out were utilizing Nipah coir waste as a raw material for making particle boards. Particle boards are panel boards made of wood particles or materials containing lignocellulose. Nipah plants contain 27.3% lignin and 36.5% cellulose which has the potential to be used as raw material for particleboard production. This study aims to reveal the physical and mechanical properties of particleboards made from Nipah fruit fibre with adhesive using tapioca flour. The making of particle board is done with a ratio of 90%: 10%, 80%: 20%, 70%: 30%, 60%: 40%, by giving a pressure of 100 kg / cm2. Particle testing is carried out according to the JIS A 5908 standard (2003). From this study, the optimum results were obtained in variations of 60%:40%. The particle physical properties which have an average density value of 1.15 gr / cm3 and an average moisture content of 5.8%. While the mechanical properties obtained by the value of Modulus of Elasticity an average of 21,188.93 kg / cm2. This shows the particle board variations of 60%: 40% produced to meet the JIS A 5908 (2003) standard. Based on the analysis of the quality variations 60%: 40% of particle boards can be recommended as raw materials for interior furniture.
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Suroto, Suroto. "PENGARUH UKURAN DAN KONSENTRASI PEREKAT TERHADAP SIFAT FISIK DAN MEKANIK PAPAN PARTIKEL LIMBAH ROTAN." Jurnal Riset Industri Hasil Hutan 2, no. 2 (December 31, 2010): 18. http://dx.doi.org/10.24111/jrihh.v2i2.1143.

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Shavings rattan waste from the rattan industry can be made into particle board which the addition of glue and hot pressing. The various of the particle length compositions are, 100% of 1cm of size, mixture of 1cm and 3cm (50%,50%), 1cm and 5 cm (50%, 50%), 3 cm (100%), 3 cm and 5 cm (50%, 50%), and 5 cm (100%). Each of combination was added by 6% and 12% concentration of urea formaldehide glue (UF). All of the physical and mechanical test results are fulfil the Indonesian Standard of particle board (SNI.03-2105-2006). Those results are water content 12,36 – 12,49%, thickness increase value 12,25 – 14,15%, density 0,56 – 0,69 g/cm3, hardness 83 – 155 kg/cm2, broken strenght (MOR) 115 – 1306 kg/cm2, bending strenght (MOE) 547 – 6917 kg/cm2, The best result for Particle was shown in and 6% of the glue addition. The particle boards are classified as medium density board class which has 0,40 – 0,80 g/cm3 of density. Base on the density chriteria and the glue, the particle board can be use for parts of interior material such as cabinets, desks, bookcase, and etc. Key wood : particle board, rattan waste
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Mitu, Mahfuzara, Md Azharul Islam, Md Saidur Rahman, SM Feroz, Abdus Subhan Mollick, and Md Enamul Kabir. "Pyrolysis kinetic study on waste particle residue from particle board industry." Journal of the Indian Academy of Wood Science 16, no. 1 (April 22, 2019): 58–66. http://dx.doi.org/10.1007/s13196-019-00236-x.

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Fathanah, Umi, and Sofyana Sofyana. "Pembuatan Papan Partikel (Particle Board) dari Tandan Kosong Sawit dengan Perekat Kulit Akasia dan Gambir." Jurnal Rekayasa Kimia & Lingkungan 9, no. 3 (June 1, 2013): 138. http://dx.doi.org/10.23955/rkl.v9i3.783.

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The need of wood as one of raw materials in furniture industry keeps increasing. One of efforts to reduce wood consumption is to develop research by creating composite design from material that contains sellulose to be particle board. Particle board is one of material alternatives that can be wood substitute. The objective of this research is to investigate the effect of natural-adhesive-mixture composition (acacia bark and gambier) with oil-palm-empty bunch toward mechanical property of particle board. Characterization of particle board was carried out by undertaking mechanical property testing (tensile strength and compressive strength) under wet and dry conditions. Composition variations of adhesive and oil-palm-empty bunch were 30:70; 40:60; 50:50; 60:40; 70:30. Making process of particle board is carried out by mixing oil-palm-empty bunch and adhesive with addition of 2% para-formaldehyde and water as much of 10%. Furthermore, the mixture is compressed by using Hot Press at temperature of 150oC and pressure of 10 kg/cm2 for 15 minutes. The research result indicates that the higher the adhesive composition (either adhesives of acacia bark or gambier), particle board resulted is better. In dry condition, values of the tensile strength of particle boards that have acacia bark adhesive and gambier adhesive have range of 84.2 - 104 Kgf/cm2 and 83.4 - 81.5 kg/cm2, respectively. Whereas, values of compressive strength of particle boards that have adhesives of acacia bark and gambier are in the range of 6.8 - 10.5 kg/cm2 and 6.3 - 9.3 kg/cm2, respectively. The values of tensile strength and compressive strength are obtained on compositions of adhesive: oil-palm-empty bunch ≥ 40:60, and they have fulfilled satandard of SNI 03-2105-1996. The values of tensile strength and compressive strength of particle board in wet condition, either adhesives of acacia bark or gambier, have not fulfilled standard of SNI 03-2105-1996.Keywords: empty-bunch-oil palm, acacia bark, gambier, particle board, tensile strength
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Rofii, Muhammad Navis, Satomi Yumigeta, Shigehiko Suzuki, and Tibertius Agus Prayitno. "Effects of Shelling Ratio and Particle Characteristic on Physical Properties of Three-Layered Particleboard Made from Different Wood Species." Wood Research Journal 4, no. 1 (April 19, 2017): 25–30. http://dx.doi.org/10.51850/wrj.2013.4.1.25-30.

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Wood waste materials such as flakes, particles, sawdust, planer shaving, which are residues from furniture industry can be utilized to manufacture many composites such as particleboard. The most commonly used particleboard has three layers: two face layers and one core layer. The face layers consist of fine particles and the core layer is made of coarse particles.This study aimed to show the effect of shelling ratio and particle characteristic on physical properties of three-layer particleboard with high density core and different particles on surface layers. The materials used in this study were hinoki (Chamaecyparis obtusa) strand and knife-milled Douglas-fir (Pseudotsuga manziesii) as surface layers and hammer-milled matoa (Pometia sp.) as core layer. The wood particles were collected from a wood company. Adhesive used was MDI resin (methylene diphenyl diisocyanate) with 6 % content in mat preparation. The pressing conditions were: temperature 180°C, pressure 3 MPa and pressing time 5 min. The target density was 0.72 g/cm3 with board size of 340 mm x 320 mm x 10 mm. Factors used in this study were layer structure according to board shelling ratio and particle characteristic. The parameters of this study were density, moisture content, thickness swelling, water absorption, linear expansion and vertical density profile.The results of this study indicate that all boards meet the requirements of JIS A 5908-2003. Higher shelling ratio of surface layers resulted in higher physical performance of three-layer particleboard. In terms of particle type, hinoki strands showed the best performance in board density and linear expansion, while Douglas-fir particle showed the best performance in moisture content, thickness swelling and water absorption. Improvement of physical properties of particleboard with high density wood particles in core layer can be conducted by adding surface layer with higher quality wood particles such as hinoki strands or Douglas-fir particles. Compared to Douglas-fir particles, hinoki strands as surface layers contribute to higher enhancement of three-layer particleboard with matoa as the core layer.
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Bubeník, Jan, and Jiří Zach. "Hygrothermal Behaviour of Inorganic Binder-Based Board Materials." Solid State Phenomena 321 (July 26, 2021): 157–64. http://dx.doi.org/10.4028/www.scientific.net/ssp.321.157.

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Currently, the use of board materials as a material intended for the dry construction of building structure cladding in the building industry has become widespread. The most common types of board materials include wood-based boards (particle, fibre, laminated / plywood, oriented strand boards [OSB]), cement-bonded particleboards and gypsum plasterboards or gypsum fibre boards. In the case of board materials based on inorganic binders, these are most often represented by boards in which the fillers used are bonded by plaster or cement. Wood can then be used as filler, which is predominantly an assortment of inferior-quality trees or comes from a short rotation coppice, treated by various technological processes. Microstructure and material composition have the greatest influence on the physical and mechanical properties of the boards. The use of the boards in the internal or external environment is determined by their individual properties. Another indicator for the possible use of boards is the form of moisture with which the board comes into contact after installation into the structure. For the external environment, the boards have to withstand mainly liquid moisture; in contrast, in an internal environment, the boards come into contact mainly with air humidity. The diffusion properties of the individual products are also crucial for the overall design and use of the boards for structure cladding.
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Ishak, Azizul, Siti Rafedah A. Karim, and Hashim W. Samsi. "Mechanical and Physical Properties of Particle Board Made from Silaned and NaOH Modified Kelampayan (Neolamarckia cadamba) Particles." Advanced Materials Research 812 (September 2013): 169–74. http://dx.doi.org/10.4028/www.scientific.net/amr.812.169.

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The objective of this study is to determine the mechanical and physical properties of Particleboard made from modified particle of Kelampayan (Neolamarckia cadamba). The particles were modified with Silane and Sodium Hydroxide (NaOH) by soaked the particle for 24 hours with different ratio ( Kelampayan + Silane, Kelampayan + NaOH, and Kelampayan + Silane + NaOH). The result showed that the mechanical and dimensional stability of the treated wood were improved. Particleboard made from 0.8 mesh particles treated with Silane and NaOH were highest value of bending strength modulus of rapture (MOR) 22.89MPa, modulus of elasticity (MOE) 3916.88MPa and Internal Bond properties 0.48214 MPa whereby particleboard made from 0.5 mesh particles treated by Silane were highest value for bending strength (MOR) 15.75MPa, MOE 2905.34 and Internal Bond properties 0.5748MPa.Outcome of this proposed research will provided valuable databases to the wood based industry to use Kelampayan as an alternative raw material in their down streams production such as particleboard, medium-density board and chipboard manufacturing.
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Nurdin, Hendri, Waskito Waskito, Anna Niska Fauza, Batu Mahadi Siregar, and Bagdaulet Kenzhaliyevich Kenzhaliyev. "The investigation of physical dan mechanical properties of Nipah-based particle board." Teknomekanik 6, no. 2 (December 12, 2023): 94–102. http://dx.doi.org/10.24036/teknomekanik.v6i2.25972.

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The excessive use of wood as a raw material in furniture industries has raised environmental concerns that have attracted the attention of many individuals. Consequently, various innovations have been explored in developing alternative materials for the furniture industry. One promising resource that has the potential to be developed as a raw material for furniture applications is Nipah palm husk. Nipah palm husk is classified as an agricultural waste that is barely used within society and industries. Hence, in this study, Nipah palm husk will be utilized as the primary material to fabricate particle board by involving tapioca as an adhesive. This research aimed to investigate the effect of tapioca concentrations on water absorption, modulus elasticity, modulus of rupture, and screw-holding strength of the produced Nipah palm husk particleboard. The results of this study showed that the particle board produced with a 40% tapioca adhesive concentration exhibited the most favorable physical and mechanical properties with a water absorption rate of 25%, an elastic modulus of 21188.93 kg/cm2, a modulus of rupture of 55.53 kg/cm2, and a screw holding power of 7.53 kg. The findings indicated that Nipah-based particle board has the potential to be developed as an alternative for the furniture industry.
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Dissertations / Theses on the topic "Particle board industry"

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Van, Rooyen Petrus Mynhardt. "Is it feasable to increase the medium density fibreboard manufacturing capability in South Africa?" Thesis, Port Elizabeth Technikon, 2004. http://hdl.handle.net/10948/255.

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Medium density fibre (MDF) board is used in various applications in the building-, furniture- and casket industry. The market is shared by solid wood and other flat panels, such as particle board and plywood. The market in South Africa forms part of the global market. Therefore it is possible to import MDF. The demand for MDF is driven by the building industry, the Consumer Price Index (CPI) and the exchange rate. The CPI is an indication of the consumer’s willingness to purchase furniture or to invest in property with subsequent growth in the building industry. The 2002 market in SA is 500 000m3 for particle board and 110 000m3 for MDF. The imported boards during this same period were particle board 10 000m3 and 22 194m3 for MDF. The extrapolated expected imports for 2003 would be 12 362m3 and 35 045m3 for particle board and MDF respectively. According to the empirical study the market increase for particle board and MDF, for 2003, will be 18%. That means that the particle board market will increase to 590 000m3 and the MDF market to 130 000m3. The 2002 production capacity was 648 000m3 (particle board) and 155 000m3 for MDF. The Sonae factory in White River can produce either particle board or MDF and this influences the production capacities. According to various International databases the requirements for SA in 2020 will be 984 000m3 for particle board and 569 000m3 for MDF. Quick calculation show a shortfall of 414 000m3 for MDF in 2020 when compared to 2002 production capacity. First mover advantage will give the mover the major market share in SA. The demand will be there. All the above calculations have been done without taking the 2010 World Football event in SA into consideration. The question is – all the current players are almost on par to make it happen. The company with the burning desire to make it work will find the finance and will have the controlling market share.
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Taylor, Jack Arnold 1926. "The structural use of particleboard." Monash University, Dept. of Civil Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/7722.

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Saewang, Kittiphot, and 王順生. "The International Competitiveness of Thailand's Particle Board Industry." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/35106028476259263183.

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碩士
國立高雄大學
國際企業管理碩士學位學程
102
In this study, we evaluated and performed an international comparison of the international competitiveness of the Thai particleboard industry. We used the 1961–2012 statistical database of the Food and Agriculture Organization and the China Particleboard Industry International Competitiveness Influencing Factors written by Yan. We compared Thailand with Canada, Germany, and China. We used Porter’s diamond model of international market share, factor conditions, demand conditions, firm strategy, structure, and rivalry, and related and supporting industries. We then connected the roles of chance and government to analyze the Thai particleboard industry. We believe that the overall international competitiveness of the particleboard industry of Thailand is increasing rapidly because Thailand has an advantage over other countries in factor conditions. The development of the industry may become export-oriented.
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Books on the topic "Particle board industry"

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Echeverría, Sergio Vidaurre. Tecnología y perspectivas de tableros de partículas tipo waferboards, flakeboards y OSB. Santiago, Chile: Instituto Forestal, División Regional, 1987.

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National Register of Foreign Collaborations (India), India. Dept. of Scientific & Industrial Research., and India. Ministry of Science and Technology., eds. Technology in Indian resin bonded fibre and particle boards industry: A status report prepared under the National Register of Foreign Collaborations. New Delhi: Govt. of India, Dept. of Scientific & Industrial Research, Ministry of Science and Technology, 1992.

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Zhi, Xu, and North Central Forest Experiment Station (Saint Paul, Minn.), eds. Regional impacts of technical change: The case of structural particleboard in the United States. St. Paul, Minn: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1992.

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(Canada), Northern Forestry Centre, H.A. Simons (International) Ltd., and Canada-Alberta Forest Resource Development Agreement., eds. Improving fibre utilization in the aspen structural panelboard industry. Edmonton, Alta: Canadian Forestry Service, Northern Forestry Centre, 1986.

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Spelter, Henry. Capacity, production, and manufacturing of wood-based panels in North America. Madison, WI (One Gifford Pinchot Dr., Madison 53705-2398): U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1994.

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Spelter, Henry. Review of wood-based panel sector in United States and Canada. Madison, Wis: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1997.

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Spelter, Henry. Capacity, production, and manufacturing of wood-based panels in North America. Madison, Wis: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1994.

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Spelter, Henry. Review of wood-based panel sector in United States and Canada. Madison, WI (One Gifford Pinchot Dr., Madison 53705-2398): U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1997.

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B, McKeever David, Durbak Irene, and Forest Products Laboratory (U.S.), eds. Review of wood-based panel sector in United States and Canada. Madison, WI (One Gifford Pinchot Dr., Madison 53705-2398): U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1997.

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Spelter, Henry. Review of wood-based panel sector in United States and Canada. Madison, WI (One Gifford Pinchot Dr., Madison 53705-2398): U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1997.

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Book chapters on the topic "Particle board industry"

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Barbu, Marius C., Jörg Hasener, and Gregor Bernardy. "Modern Testing of Wood-Based Panels, Process Control, and Modeling." In Research Developments in Wood Engineering and Technology, 90–130. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4554-7.ch003.

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The fast development of the wood-based panels industry during the last decades resulted in a substantially increased production capacity of manufacturing lines. The utilization of advanced manufacturing systems created a large output of different panel types with a production of more than 1,000 m3 per day on at least 300 days within a year. Therefore, it is important to take into account the new requirements for an on-line control of the manufacturing process. Only on-line Non-Destructive Testing (NDT) technologies are able to survey, detect, and forecast the quality of the raw materials, level of production parameters, and development of the panel properties. Main parameters like moisture content, resination level, mat area weight, thickness, and density profile influence the final properties of the panels. For over a decade there has been no other choice to control these and other process parameters than NDT methods using microwave (water content), IR (moisture and color), X-ray (mat and board area weight and density profile), ultrasound (blisters or density variation), etc. The determination of the effective resin content on the wood particle or the density, temperature, and moisture development during the hot pressing are further requirements for the future production units. The on-line measurement of free formaldehyde remaining after resin curing and other volatile substances from wood and resin seems to be a further subject of major interest. The intelligent implementation and integration, use, and understanding of on-line NDT methods in wood panel manufacturing is a big challenge that includes a better understanding of the overall process and its limits, an updated state of the art of knowledge, as well as an open and continuous dialog between the equipment producers, board manufactures, and users that could be another important key for the development of an environmentally friendly modern wood-based panel industry in the world.
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Field, Alexander J. "From Priorities Unemployment to Labor Shortage." In The Economic Consequences of U.S. Mobilization for the Second World War, 181–259. Yale University Press, 2022. http://dx.doi.org/10.12987/yale/9780300251029.003.0005.

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This chapter investigates how shortages of materials and subassemblies, aggravated by producer hoarding, drove the priorities unemployment that was a signature feature of production during the first half of U.S. participation in the war. After 1943, severe labor shortage and a secondary product composition effect added to the mix. Throughout the war, these strains periodically caused productive capacity to remain idle, sometimes for extended periods. The chapter then looks at the 1943 minutes of the meetings of the War Production Board. It also considers the push for national service legislation, which was seen by advocates as a move in the direction of more equal sacrifice and as a partial solution to labor shortages and high turnover in industry. Moreover, the chapter studies the manpower policies of the Selective Service System.
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Conference papers on the topic "Particle board industry"

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Guest, D. A. "Recycle, Reuse and Disposal of Paper and Board." In Products of Papermaking, edited by C. F. Baker. Fundamental Research Committee (FRC), Manchester, 1993. http://dx.doi.org/10.15376/frc.1993.2.1141.

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The current emphasis on the environment and its impact on recycling is placed into context with an introduction of how life cycle analysis and assessment techniques will play an increasing role in determining the direction of industrial development and legislation. The review is based around the subjects identified by European Paper industry experts on recycling and recycling research as being the most critical to the long term development of the industry. These are the characterisation of the changes which occur to fibres and their surfaces on recycling; the influence of chemicals on water quality and production efficiency; the fundamentals of flotation deinking and recycling models. In addition a section on alternative uses for waste paper is included. Recent reviews on the effects of recycling on paper properties are summarised and an explanation for the apparent anomalies and differences given. Results on post paper manufacturing treatment on recycle potential are also included. The information on the effect of chemicals on recycling is sparse and tends to be empirical. The greatest effects are on paper strength and brightness where bleaches or brightening agents are used. The chemicals which dissolve also have a detrimental effect on process additive efficiency and add to effluent treatment and discharge costs. The deinking section is subdivided into – a brief review of the chemistries and drying methods of inks and toners and their influence on particle size on repulping; the chemistry of the repulping process; the flotation process. The influences of chemicals on flotation and the fundamental phenomena which occur during the process are described. Models for assessing age distribution and product properties at various levels of recycling are explored. In addition the build up of materials within a recycling loop is examined along with the energy balance of recycling compared with manufacture from virgin materials. Alternative uses of wastepaper considered include energy generation, composting and as a raw material for a variety of applications. None of these are likely to become major uses, competitive with wastepaper used for paper and board production in the near future. It is concluded that there are various studies of a fundamental nature which need to be completed to advance the technology of recycling. Greater emphasis on the supply side of wastepaper would also yield industrial benefit.
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Li, Alice K., Vincent McDonell, Max Venaas, Gregor A. Waldherr, and Hai Lin. "Design and Evaluation of a Fiber Optic Sensor for Particle and Concentration Monitoring in a Contaminated Flow Rig." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91077.

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Abstract Optimizing safety and efficiencies is vital to turbomachinery design in the aerospace industry. However, aircraft engines subject to ingestion of airborne particle mixtures of unknown size and concentration have undergone unpredictable malfunction and power losses. Premature damage could be caused by increased erosion rates from mixtures with abrasive material. Similarly, corrosion rates could also increase for mixtures with corrosive material. Further, ingestions with melting points below the combustion exit temperature do melt, adhere to turbine blades, and thereby produce clogs and power losses. Additional blockage could be caused by accumulation of material of fluctuating volumes on blades and vanes. Such malfunction can be prevented by providing these engine systems with an on-board sensor capable of defining the particle size and size distribution and determining instantaneous and cumulative ingestion rates. This study demonstrates the methods used in the design of a fiber optic sensor to size the ingested material and measure its distribution and concentration directly in an engine’s flow path. A high-velocity, high-temperature contamination rig has been designed and built for testing the sensor and evaluating its functionality under engine conditions. Durability tests will be conducted to determine sensor lifespan and assess feasibility of incorporation in current turbomachinery for aircraft protection. Contaminant particle distribution and flow patterns in pipe cross section were studied through laser diffraction and light scattering, to enhance understanding of changes in sensor upon particle impingement.
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Zouaghi, Ayyoub, Noureddine Zouzou, and Lucien Dascalescu. "Effect of travelling wave electric field on fine particles motion on an electrodynamic board." In 2017 IEEE Industry Applications Society Annual Meeting. IEEE, 2017. http://dx.doi.org/10.1109/ias.2017.8101701.

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Kushwaha, Radha, Vinod Khadkikar, and Bashar Zahawi. "An Approach for Combined AC-DC On-Board Fast Charging using Three-Port Partial Power Conversion." In 2023 IEEE Industry Applications Society Annual Meeting (IAS). IEEE, 2023. http://dx.doi.org/10.1109/ias54024.2023.10406546.

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Jimmim, Ashraful Alam, Md Takvir Alam Khan, and Md Ashiqur Rahman. "Fabrication and characterization of low density particle boards from pseudo-stem of banana plant." In DISRUPTIVE INNOVATION IN MECHANICAL ENGINEERING FOR INDUSTRY COMPETITIVENESS: Proceedings of the 3rd International Conference on Mechanical Engineering (ICOME 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5044310.

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Garcia, Gregory, Ward D. Rummel, Francisco Gonzalez, and Lawrence H. Strouse. "Quantitative Nondestructive Evaluation of Railroad Tank Cars." In 2011 Joint Rail Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/jrc2011-56019.

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A rulemaking issued by the Department of Transportation (DOT) revises Hazardous Materials Regulations (HMR) to replace the hydrostatic pressure test with appropriate nondestructive evaluation (NDE) methods. The rule change is contained in Federal Register 49 Code of Federal Regulations (CFR) Part 180.509, “Requirements for inspection and test of specification tank cars,” paragraph (e) “Structural integrity inspection tests” [1]. The CFR authorizes liquid penetrant (PT), magnetic particle (MT), radiography (RT), ultrasonic (UT), and optically aided visual testing (VT) as allowable NDE methods for structural integrity inspections and tests. Other NDE methods may be allowed under special exemption issued by the Federal Railroad Administration (FRA) Office of Safety. Also included under the requirements of 49 CFR Part 179.7 is the need to qualify not only NDE personnel, but the procedures used to perform NDE reliably. In order to be effective, federal regulations require that the NDE methods have a proven sensitivity and reliability for finding the type and size of flaws likely to cause a tank car failure. In the early 1970s, an internationally accepted quantitative approach that assesses the probability of detection (POD) was developed for the National Aeronautics and Space Association (NASA) and was published in NASA CR-2369, February 1974 [2]. Transportation Technology Center, Inc. (TTCI), under contract with the FRA, and along with industry participation, uses the NASA approach to determine the POD for various NDE methods used in the inspection of railroad tank car circumferential butt welds (girth seam welds), fillet welds, and leak test samples. The emergence of a damage tolerance approach to determine inspection intervals for an engineered structure — in this case a railroad tank car — requires the quantification of the detectable flaw size for the NDE methods used during inspection. Damage tolerance techniques have initiated an evolution in NDE understanding, methods, and requirements. National Transportation Safety Board safety recommendations R-92-21 through R-92-24 address the suggested process of performing reliable inspection of railroad tank cars based on a damage tolerance approach [3]. NDE quantification using the POD approach is a key measure of NDE effectiveness and is integral to damage tolerance requirements. TTCI, working with the FRA, Railroad Tank Car Industry and D&W Enterprises (A NDE consulting company providing expertise in the area of NDE POD), has developed baseline POD curves for the allowed NDE methods. Initial evaluations were performed on the inspection of tank car circumferential butt welds. Subsequent efforts focused on butt welds, longitudinal fillet welds and leak test samples requiring inspection under the CFR. This paper reports quantitative results obtained during this research effort that address system safety and risk analysis during handling and transportation of railroad tank cars carrying hazardous materials.
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Ahlgren, Fredrik, Maria E. Mondejar, Magnus Genrup, and Marcus Thern. "Waste Heat Recovery in a Cruise Vessel in the Baltic Sea by Using an Organic Rankine Cycle: A Case Study." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43392.

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Maritime transportation is a significant contributor to SOx, NOx and particle matter emissions, even though it has a quite low CO2 impact. New regulations are being enforced in special areas that limit the amount of emissions from the ships. This fact, together with the high fuel prices, is driving the marine industry towards the improvement of the energy efficiency of current ship engines and the reduction of their energy demand. Although more sophisticated and complex engine designs can improve significantly the efficiency of the energy systems in ships, waste heat recovery arises as the most influent technique for the reduction of the energy consumption. In this sense, it is estimated that around 50% of the total energy from the fuel consumed in a ship is wasted and rejected in fluid and exhaust gas streams. The primary heat sources for waste heat recovery are the engine exhaust and the engine coolant. In this work, we present a study on the integration of an organic Rankine cycle (ORC) in an existing ship, for the recovery of the main and auxiliary engines exhaust heat. Experimental data from the operating conditions of the engines on the M/S Birka Stockholm cruise ship were logged during a port-to-port cruise from Stockholm to Mariehamn over a period of time close to one month. The ship has four main engines Wärtsilä 5850 kW for propulsion, and four auxiliary engines 2760 kW used for electrical consumers. A number of six load conditions were identified depending on the vessel speed. The speed range from 12–14 knots was considered as the design condition, as it was present during more than 34% of the time. In this study, the average values of the engines exhaust temperatures and mass flow rates, for each load case, were used as inputs for a model of an ORC. The main parameters of the ORC, including working fluid and turbine configuration, were optimized based on the criteria of maximum net power output and compactness of the installation components. Results from the study showed that an ORC with internal regeneration using benzene would yield the greatest average net power output over the operating time. For this situation, the power production of the ORC would represent about 22% of the total electricity consumption on board. These data confirmed the ORC as a feasible and promising technology for the reduction of fuel consumption and CO2 emissions of existing ships.
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Phipps, Jonathan. "Invited Perspective: Current and Potential Use of Highly Fibrillated Cellulose in the Paper and Board Industry." In Advances in Pulp and Paper Research. Pulp & Paper Fundamental Research Committee (FRC), Manchester, 2022. http://dx.doi.org/10.15376/frc.2022.1.249.

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The use of microfibrillated cellulose (MFC) in the paper industry has become established following many years of development by both academic and industrial researchers. Commercial installations typically use mechanical disintegration techniques such as refiners and grinders to convert aqueous suspensions of pulp fibres into a material consisting of fibrils and fibre fragments with diameters ranging from the nanometre to the micron scale. MFC suspensions of a few percent solids content show very high viscosity at low shear rates, but also very significant shear thinning behaviour, rapid viscosity recovery after shear and high filtration resistance. MFC added to paper furnishes at up to 5% by weight functions as a strength additive, enabling increases in mineral filler content, improvements in paper properties, reductions in weight and cost savings across a wide range of paper and board grades. As a complementary technology to pulp refining, addition of MFC offers process flexibility as well as improved wet web strength and runnability, reduced air permeability and increased z-direction strength. Although the fine fibrils of MFC do not dewater easily on their own, when added at low levels to paper their effect on machine drainage can be managed without loss of paper machine speed. In recent years, MFC has attracted much interest as a coating material. Layers or films of pure MFC show near-zero air permeability, high resistance to oil and grease and an effective barrier to organic vapours and oxygen. Mixtures of mineral particles and as little as 15% MFC provide an effective surface for water-intensive printing techniques such as flexography and inkjet. Application of MFC suspensions after the wet line of a papermachine has been demonstrated as a practical solution to obtain coatings, exploiting the rheological behaviour of the MFC to achieve excellent holdout onto a poorly-consolidated sheet, and using the vacuum and press sections of the machine to remove excess water. Further development and commercialisation of this technology, together with low cost MFC production and improved product characterisation, should ensure the continued growth of its use in the paper and board industry.
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Martínez Marín, Jesús Ezequiel, Andrea Trilles Segura, and Ivette Fuentes Molina. "The impact of covid-19 on shipping industry studying economic factors." In Maritime Transport Conference. Universitat Politècnica de Catalunya. Iniciativa Digital Politècnica, 2022. http://dx.doi.org/10.5821/mt.11012.

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The aim of this paper is to analyse the impact of COVID-19 on shipping industry using a multiple-regression econometric model based on Ordinary Least Squares. The model has considered Valencia Containerised Freight Index as the dependent variable. Several exogenous variables will be included in the model to estimate their partial effect, ceteris paribus on the endogenous one, such as economic and maritime casuistry. Coronavirus, known as a global pandemic, had a strong impact on world economies during 2020. As a result, this paper is focused on analysing COVID-19 impact on shipping industry. Therefore, it is going to be studied economic effects of pandemic for shipping companies in order to show how they managed this new scenario. On the other hand, human factor from maritime perspective will be mentioned in order to consider central effects on seafarers and how they felt during pandemic on board. As maritime transport represents 90% of global trade, this research wants to analyse why freight prices were constantly growing during months. Using quarterly cross- sectional database, we study three possible regressions, achieving an increase on goodness-of-fit statistic in each one. Despite of having a limited database, Spanish imports, Spanish E-commerce growth and Gross weight of goods handled in main Spanish ports have turned highly significant to explain rises on Valencian freight prices.
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Cicciarelli, Bradley A., David L. Davidson, Edward H. Hart, and P. Robert Peoples. "CFD Analysis of the Behavior of Airborne Allergens in Carpeted and Uncarpeted Dwellings." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1557.

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There is considerable concern today over indoor air quality (IAQ). The factors that influence IAQ may be numerous, and there is considerable research aimed at quantifying these factors. This research is of particular interest to industries that manufacture products used in residential and commercial dwellings, such as the carpet industry. With respect to carpet, there are various opinions about its role in IAQ, but little quantitative data. Much of the quantitative data that does exist either ignores or makes crude assumptions about the influence of fluid dynamics on the experimental observations. In this paper we discuss our use of Computational Fluid Dynamics (CFD) to model the transient behavior of airborne particles in dwellings with and without carpeted floors to quantify the impact of floor covering on IAQ. In particular, we discuss the theoretical considerations that are required to construct an accurate and practical CFD model that captures the correct fluid and particle dynamics, and present and summarize CFD predictions that account for the effects of HVAC systems, room geometry and virtual objects, such as people moving about the dwelling. In addition to getting the fluid and particle dynamics correct, there are two additional aspects of this problem that will be discussed. First, in order to draw reasonable conclusions about IAQ, a large number of simulations are required to capture the wide range of realistic dwelling conditions of interest. In order to perform these simulations in a timely manner, the process of building and meshing the geometry, specifying all relevant room conditions, conducting the simulation and interrogating the results has been automated by constructing a Digital Expert for the problem, wherein the user can automatically complete these tasks with little CFD expertise and no intervention. Second, it is essential to communicate the results of these simulations to lay audiences — the wide range of people interested in IAQ, including school boards, politicians and other government officials. We have developed a means of generating “Hollywood grade” animations that are more realistic in appearance than conventional CFD animations, and consequently more appealing and more readily understandable, but that reflect the correct fluid and particle dynamics. We believe that the integration of CFD with realistic animation capability will see greater applicability as our society becomes increasingly dependent on technology and decreasingly technically literate.
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