Annals of WULS, Forestry and Wood Technology最新文献_第10页

Management of wood production residues as wholesome products - case study 木材生产残留物作为卫生产品的管理-案例研究

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-06-28 DOI: 10.5604/01.3001.0015.2380

M. Grotowska, P. Beer

引用次数: 0

Effect of the essential oils addition on the rate of bacterial cellulose surface overgrowth by mold fungi 精油添加量对霉菌细菌纤维素表面生长速率的影响

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-06-28 DOI: 10.5604/01.3001.0015.2372

Marcin Jałoweicki, I. Betlej

引用次数: 0

Colour stability of surface finishes on thermally modified beech wood 热改性山毛榉木材表面处理的颜色稳定性

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-06-28 DOI: 10.5604/01.3001.0015.2391

G. Slabejova, M. Smidriakova

{"title":"Colour stability of surface finishes on thermally modified beech wood","authors":"G. Slabejova, M. Smidriakova","doi":"10.5604/01.3001.0015.2391","DOIUrl":"https://doi.org/10.5604/01.3001.0015.2391","url":null,"abstract":"Colour stability of surface finishes on thermally modified beech wood. The paper deals with the influence of the type of transparent surface finish on the change of colour of the surfaces of native beech wood and thermally modified wood. At the same time, the colour stability of three surface finishes on the surfaces of native and thermally modified beech wood was monitored. Beech wood was thermally modified at temperature of 125 °C for 6 hours. The thermal treatment was performed in a pressure autoclave APDZ 240, by the company Sundermann s.r.o in Banská Štiavnica. Three various types of surface finishes (synthetic, wax-oil, water-based) were applied onto the wood surfaces. The colour of the surfaces of native wood and thermally modified wood was measured in the system CIELab before and after surface finishing; the coordinates L*, a*, b*, C*ab and h*ab were measured. From the coordinates measured before and after surface finishing, the differences were calculated and then the colour difference ∆E* was calculated. Subsequently, the test specimens with the surface finishes were exposed to natural sunlight, behind glass in the interior for 60 days. The surface colour was measured at specified time of the exposure (10, 20, 30, 60 days). The results showed that the colour of the wood surfaces changed after application of the individual surface finishes; and the colour difference reached a change visible with a medium quality filter up to a high colour difference. The wax-oil surface finish caused a high colour difference on native wood and on thermally modified wood as well. On native beech wood, the lowest colour difference after exposure to sunlight was noticeable on the synthetic surface finish. On the surface of wood thermally modified, after exposure to sunlight, the lowest colour difference was noticeable on the surface with no surface finish.\u0000\u0000","PeriodicalId":8020,"journal":{"name":"Annals of WULS, Forestry and Wood Technology","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83235853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Contamination with microscopic fungi measured by the concentration of ergosterol in dusts of various types of wood with different granulation 用不同造粒的不同类型木材的木屑中麦角甾醇的浓度测定微真菌的污染

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.2354

T. Szablewski, Lidia Szwajkowska-Michałek, Marta Pędzik, T. Rogoziński, Kinga Stupor-Szablewska

{"title":"Contamination with microscopic fungi measured by the concentration \u0000of ergosterol in dusts of various types of wood with different granulation","authors":"T. Szablewski, Lidia Szwajkowska-Michałek, Marta Pędzik, T. Rogoziński, Kinga Stupor-Szablewska","doi":"10.5604/01.3001.0015.2354","DOIUrl":"https://doi.org/10.5604/01.3001.0015.2354","url":null,"abstract":"Contamination with microscopic fungi measured by the concentration of ergosterol in dusts of various types of wood with different granulation. Dusts are a mixture of compounds generated both in the anthropogenic and natural environment and they are a by-product of combustion and abrasion or crushing of solid materials. Dust generated in wood industry plants as a result of mechanical wood processing is particularly dangerous. Wood dusts - both dispersed in the air inside a production plant and deposited - also contain the work environment's so-called biological agents. This term refers to microorganisms and the structures and substances produced by these organisms, which have an adverse effect on the human organism and may cause numerous diseases. The aim of this study was to determine the level of contamination with microscopic fungi of dusts from various types of wood depending on the granulation. The method of analysis of the chemical ergosterol marker was used here, the concentration of which is correlated with the number of mycoscopic fungi. On the basis of the study, it was found that dusts with finer granulation from deciduous wood are characterized by a higher concentration of ERG, i.e. a higher level of contamination with microscopic fungi. It is important information from the point of view of health and safety at work.\u0000\u0000","PeriodicalId":8020,"journal":{"name":"Annals of WULS, Forestry and Wood Technology","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77525805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The possibility to use a side-timber in glulam beams manufacturing for structural applications 在结构应用的胶合木梁制造中使用侧木的可能性

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.2334

Jakub Kawalerczyk, Marcin Kuliński, D. Dziurka, R. Mirski

引用次数: 2

Effect of thermomechanical densification of pine wood (Pinus sylvestris L.) on cutting forces and roughness during milling 松材热机械致密化对铣削切削力和粗糙度的影响

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.2330

Barbara Białowąs, K. Szymanowski

引用次数: 0

A systemic model of furniture meant for stimulating development of a child based on educational aids from M. Montessori 一个系统的家具模型，旨在促进儿童的发展，以蒙台梭利的教育辅助为基础

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.2327

E. Dobrowolska, I. Błaszczak, A. Mielnik, E. Lisiecka

{"title":"A systemic model of furniture meant for stimulating development of a child \u0000based on educational aids from M. Montessori","authors":"E. Dobrowolska, I. Błaszczak, A. Mielnik, E. Lisiecka","doi":"10.5604/01.3001.0015.2327","DOIUrl":"https://doi.org/10.5604/01.3001.0015.2327","url":null,"abstract":"In furniture design, understood as a kind of evolutionary process, there is room for designer’s \u0000creativity, but not in the sense traditionally accepted in the psychology of creation. The creativity of the designer \u0000shapes the products of the evolutionary algorithm but does not replace them. This can be illustrated by the \u0000genesis of any design, such as furniture that stimulates the development of the child. The Montessori pedagogy \u0000leaves a lot of room for new designs of Montessorian teaching aids. The Montessori didactic material forms a \u0000logically structured whole. It enables the child to move out of experience and sensual cognition; it serves not \u0000only the development of the intellect but also the education of the whole personality. The Montessorian materials \u0000take into account the child’s stage of development, corresponding to a given sensitive phase and the very logic of \u0000things, so that the child, while learning, can embrace larger cognitive sequences, arouse a sense of aesthetics, \u0000motivation, curiosity and interest, thus triggering various forms of activity.\u0000\u0000","PeriodicalId":8020,"journal":{"name":"Annals of WULS, Forestry and Wood Technology","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86479822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Structure and cutting properties of WC-Co composites obtained by the SPS - Spark Plasma Sintering method SPS -火花等离子烧结法制备WC-Co复合材料的结构和切削性能

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.2356

J. Wachowicz, Jeremi Gos, J. Wilkowski

{"title":"Structure and cutting properties of WC-Co composites obtained by the SPS - Spark Plasma Sintering method","authors":"J. Wachowicz, Jeremi Gos, J. Wilkowski","doi":"10.5604/01.3001.0015.2356","DOIUrl":"https://doi.org/10.5604/01.3001.0015.2356","url":null,"abstract":"Functional properties of WCCo composites obtained by the SPS – Spark Plasma Sintering method. The rapid development of the furniture market results in the need to produce tools with increasingly better properties which make it possible to increase the efficiency of the production. One of the prospective paths of development for blades intended for cutting wood-based materials are carbides made using the Spark Plasma Sintering method. It makes it possible to produce sinters with submicron or even nanometric WC grain size in a very short time and without the need for using inhibitors. As a result of the specific heating conditions, this method makes it possible to obtain a material having high parameters in comparison with the material produced using conventional methods. \u0000This study aimed to determine the degree of wear of SPS tools compared to commercially available blades (of similar chemical composition). The results of research testing the basic properties (hardness, density, microstructure) of WCCo composites, obtained using the innovative SPS method, are included in the study. The quality of the produced tools and the intensity of wear of the blades made using the SPS method were evaluated. The results were compared to commercially available blades. The wear of individual blades was evaluated based on the machining of three-layer particleboard.\u0000\u0000","PeriodicalId":8020,"journal":{"name":"Annals of WULS, Forestry and Wood Technology","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79530217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sliding angle of repose and pickup velocity of chosen types of chipped wood 所选类型木屑的滑动休止角和拾取速度

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.2355

S. Trofimov, T. Rogoziński

引用次数: 0

Dissemination of algorithms for decision-making aiding in the design of furniture and other products made of lignocellulosic materials in the scientific literature 在科学文献中传播决策算法，帮助设计家具和其他由木质纤维素材料制成的产品

Annals of WULS, Forestry and Wood Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.2333

A. Jasińska, M. Sydor

引用次数: 0