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Title Effect of low-thermal treatment on the particle size distribution in wood dust after milling Author info Martin Júda ... [et al.] Author Júda Martin (35%)
Co-authors Sydor Maciej (5%)
Rogoziński Tomasz (5%)
Kučerka Martin 1980- (25%) UMBFP07 - Katedra techniky a technológií
Pędzik Marta (5%)
Kminiak Richard (25%)
Source document Polymers. Vol. 15, no. 4 (2023), pp. [1-17]. - Basel : Multidisciplinary Digital Publishing Institute, 2023 Keywords spracovanie dreva - wood processing bukové drevo tepelné spracovanie - heat treatment Form. Descr. články - journal articles Language English Country Switzerland URL Link na plný text Public work category ADC No. of Archival Copy 53000 Repercussion category ČAVLOVIĆ, Anka Ozana - BEŠLIĆ, Ivan - PERVAN, Stjepan - PREKRAT, Silvana. Characteristics of thermally modified hardwood dust in determining workers’ occupational exposure. In BioResources. ISSN 1930-2126, 2023, vol. 18, no. 2, pp. 3923-3937.
LEE, Seng Hua - ANTOV, Petar - KRISTAK, Lubos - REH, Roman - LUBIS, Muhammad Adly Rahandi. Application of wood composites III. In Applied sciences. ISSN 2076-3417, 2023, vol. 13, no. 11, pp. 1-4.
VARELA, Alejandro - CASTILLO-RUIZ, Francisco J. - ARBIZU-MILAGRO, Julia - TASCON, Alberto. The influence of moisture on the sieving performance of lignocellulosic biomass. In Biofuels, bioproducts and biorefining. ISSN 1932-104X, 2023, vol. 17, no. 6, pp. 1708-1723.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika Title Fine dust after sanding untreated and thermally modified spruce, oak, and meranti wood Author info Maciej Sydor, Jerzy Majka ... [et al.] Author Sydor Maciej (5%)
Co-authors Majka Jerzy (5%)
Hanincová Luďka (5%)
Kučerka Martin 1980- (25%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (20%)
Krišťák Ľuboš (10%)
Pędzik Marta (5%)
Očkajová Alena 1961- (20%) UMBFP07 - Katedra techniky a technológií
Rogoziński Tomasz (5%)
Source document European journal of wood and wood products. Vol. 81, no. 6 (2023), pp. 1455-1464. - Berlin : Springer-Verlag, 2023 Keywords drevný prach brúsenie smrekové drevo dubové drevo Form. Descr. články - journal articles Language English Country Germany Annotation Airborne wood dust poses health and safety risks in the construction and furniture industry. The study verified whether the thermal modification affects the share of fine wood dust particles (< 10 μm) generated during spruce, oak, and meranti wood sanding. The experimental research involved nine material variants, including three wood species in three states: untreated, thermally modified at 160 °C, and thermally modified at 220 °C). To collect at least 200 g of each dust sample, a belt sander with P80 sandpaper and a belt speed of 10 m/s was used, along with a dust collector. The collected dust was then separated into fractions using a set of sieves with aperture sizes of 2000, 1000, 500, 250, and 125 μm. A laser particle sizer was employed to measure the sizes of dust particles in the under-sieve fraction (dust with particle sizes smaller than 125 μm). The under-sieve fraction was decomposed into three subfractions, with particle sizes: <2.5, 2.5-4.0, and 4.0–10 μm. Surprisingly the results indicate that sanding dust from thermally modified wood generates a lower average mass share of potentially harmful fine particle fractions than dust from untreated wood. Oak dust contained a higher mass share of fine particles compared to the spruce and meranti dust samples. Dust from thermally modified oak and meranti wood had a lower content of harmful particle fractions than dust from untreated wood. The average mass shares of these dust fractions for modified wood at 160 and 220 °C showed no statictically significant differences (p < 0.05). Conversely, spruce dust had a low content of fine fractions because spruce particles exhibit a more irregular elongated shape. The study considered the extreme temperatures of 160 and 220 °C used in the thermal modification of wood. Therefore, the above statements are assumed to be valid for all intermediate thermo-modification temperatures. URL Link na zdrojový dokument Public work category ADC No. of Archival Copy 53499 Repercussion category DADO, Miroslav - SCHWARZ, Marian - SALVA, Jozef - JANKOVIC, Richard - HNILICA, Richard. Comparison of the declared and simulated real-use noise data during wood sanding using a hand-held power sander. In Acoustics. ISSN 2624-599X, 2023, vol. 5, no. 4, pp. 1136-1147.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika Title Nástroje a náradie na ručné opracovanie dreva Author info Martin Kučerka a kol. Author Kučerka Martin 1980-
Issue data Banská Bystrica : Vydavateľstvo Univerzity Mateja Bela - Belianum : Univerzita Mateja Bela v Banskej Bystrici, Fakulta prírodných vied , 2023. - 1 elektronický optický disk (CD-ROM) : fotogr., il., tab., 13 cm Issue 1. vyd. ISBN 978-80-557-2097-5 Type of el. source Elektronické dokumenty (listy, články, monografie) Note Bibliografia Keywords drevo - wood spracovanie dreva - wood processing ručné opracovanie dreva - manual woodworking drevorezné nástroje - wood carving tools náradie - tools pracovné prostredie - work environment Form. Descr. CD-ROM - CD-ROM, vysokoškolské skriptá - college textbooks Language Slovak Country Slovak Republic systematics 674.02 674.03 73.023.1-035.3 621.715.2 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xkni - BOOKS Copy count 3, currently available 1, at library only 1 Call number Location Sublocation Umiestnenie Info 391128 Univerzita Mateja Bela Universal reading room In-Library Use Only 391129 Univerzita Mateja Bela Department of absent lending vypož. (until 21.05.2024) 391130 Univerzita Mateja Bela Department of absent lending Title Návrh a vyhotovenie názornej učebnej pomôcky pre vyučovací predmet Lesná ťažba, téma: Základy náuky o dreve Subtitle bakalárska práca Author info Dominika Brotková; školiteľ: Alena Očkajová Author Brotková Dominika
Another authors Očkajová Alena 1961- (Školiteľ (konzultant))
Corporation Univerzita Mateja Bela . Fakulta prírodných vied . Katedra techniky a technológií , Banská Bystrica, Slovensko Issue data Banská Bystrica , 2023. - 62 s. + 2 prílohy Keywords názorné učebné pomôcky - illustrative teaching aids didaktické autotesty - didactic self-tests lesná ťažba - logging drevo - wood Form. Descr. bakalárske práce - bachelor’s theses Language Slovak Country Slovak Republic systematics 37.091.64 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xk - Kvalifikačné práce Copy count 1, currently available 0 Title Návrhy pracovných námetov v predmete Technické praktiká (práca s drevom) Subtitle bakalárska práca Author info Romana Jobbová; školiteľ: Ján Stebila Author Jobbová Romana
Another authors Stebila Ján 1979- (Školiteľ (konzultant))
Corporation Univerzita Mateja Bela . Fakulta prírodných vied . Katedra techniky a technológií , Banská Bystrica, Slovensko Issue data Banská Bystrica , 2022. - 48 s. Keywords technické praktiká pracovné námety - work subjects drevo - wood obrábanie dreva technické vzdelávanie - technical education Form. Descr. bakalárske práce - bachelor’s theses Language Slovak Country Slovak Republic systematics 374.32 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xk - Kvalifikačné práce Copy count 1, currently available 0, at library only 1 Title Návrhy pracovných námetov v predmete Technické praktiká (práca s materiálom) Subtitle bakalárska práca Author info Ľubica Stanková; školiteľ: Ján Stebila Author Stanková Ľubica
Another authors Stebila Ján 1979- (Školiteľ (konzultant))
Corporation Univerzita Mateja Bela . Fakulta prírodných vied . Katedra techniky a technológií , Banská Bystrica, Slovensko Issue data Banská Bystrica , 2022. - 47 s. Keywords technické praktiká pracovné námety - work subjects drevo - wood technická tvorivosť technické vzdelávanie - technical education Form. Descr. bakalárske práce - bachelor’s theses Language Slovak Country Slovak Republic systematics 374.32 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xk - Kvalifikačné práce Copy count 1, currently available 0, at library only 1 Title Quantifying the finest particles in dust fractions created during the sanding of untreated and thermally modified beech wood Author info Jerzy Majka, Maciej Sydor ... [et al.] Author Majka Jerzy (10%)
Co-authors Sydor Maciej (10%)
Pędzik Marta (10%)
Antov Petar (10%)
Krišťák Ľuboš (10%)
Kminiak Richard (10%)
Kučerka Martin 1980- (30%) UMBFP07 - Katedra techniky a technológií
Rogoziński Tomasz (10%)
Source document BioResources. Vol. 17, no. 1 (2022), pp. 7-20. - Raleigh : North Carolina State University, 2022 Keywords sitová analýza brúsenie dreva bukové drevo Form. Descr. články - journal articles Language English Country United States of America URL Link na plný text Link na zdrojový dokument Public work category ADC No. of Archival Copy 51418 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika Title The influence of thermal modification of oak, spruce and meranti blanks on surface roughness during sanding Author info Martin Kučerka ... [et al.] Author Kučerka Martin 1980- (30%) UMBFP07 - Katedra techniky a technológií
Co-authors Kminiak Richard (30%)
Krišťák Ľuboš (20%)
Rogozinski Tomasz (10%)
Pedzik Marta (10%)
Source document Proceedings : eleventh international scientific and technical conference Innovations in forest industry and engineering design INNO 2022. Pp. 113-122. - Sofia : University of Forestry, 2022 ; Innovations in forest industry and engineering design INNO 2022 medzinárodná vedecká a technická konferecia Keywords hydrotermicky upravené drevo brúsenie povrchové úpravy dreva Form. Descr. príspevky v zborníku - proceedings papers Language English Country Bulgaria Annotation Products made of thermally treated wood have different requirements for the quality of the created surface, depending on their application area. While we can make do with a milled surface for tiling and flooring, we have more sophisticated products such as garden furniture, etc. that require final surface sanding. The article focuses on the effect of thermal modification on the quality of the ground surface. It compares the surface quality of the ground surface of native woods oak, spruce and meranti with their thermally treated variants at temperatures of 160°C, 180°C, 200°C and 220°C. Quality is examined on a surface sanded with a belt sander with 80-grit sandpaper. It points to the fact that the process of a thermal modification slightly impairs the quality of the ground surface. However, when evaluating a surface on a larger scale, the quality of the created surface is influenced mainly by the "natural roughness of the wood" by the opening of anatomical elements of the wood, which are the primary source of increased roughness. Public work category AFC No. of Archival Copy 52105 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ Title The effect of the granulometric composition of beech chips from a CNC machining center on the environmental separation technique Author info Martin Kučerka ... [et al.] Author Kučerka Martin 1980- (30%) UMBFP07 - Katedra techniky a technológií
Co-authors Očkajová Alena 1961- (25%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (25%)
Pędzik Marta (10%)
Rogozinski Tomasz (10%)
Source document Acta Facultatis Xylologiae Zvolen. Roč. 64, č. 1 (2022), s. 89-97. - Zvolen : Technická univerzita vo Zvolene, 2022 Keywords drevospracujúci priemysel drevo - wood ekológia - ecology Form. Descr. články - journal articles Language Slovak Country Slovak Republic Annotation The aim of the paper is to determine the granulometric composition of chip removed from the beech lumber milling process using a CNC machining center SCM Tech Z5 in the range of commonly used technical and technological parameters under standard conditions of feed speed: v(f) = 1 divided by 5 m.min(-1) and the thickness of the removed layer: e = 1, 3 and 5 mm. Another goal of the paper was to select a suitable separation technique that would be sufficient to effectively capture the largest possible dispersion of fractions in the beech lumber milling process. Granulometric analysis showed that under the given conditions in the milling process the largest proportion of coarse and medium coarse fraction is formed and particles with a size smaller than 32 mu m are not formed. For this reason, it is our recommendation to choose a combination of dry mechanical separators together with fabric filters, as mechanical separators are able to capture mainly larger particle fractions. Fabric filters would serve to trap any finer particles, thus saving the user from greater wear of the coarse and medium coarse fractions, which would increase the wear of the filter cloth to an increased extent. URL Link na plný text Public work category ADN No. of Archival Copy 51836 Repercussion category KOLEDA, Pavol - KOLEDA, Peter - HRČKOVÁ, Mária - JÚDA, Martin - HORTOBÁGYI, Áron. Experimental granulometric characterization of wood particles from CNC machining of chipboard. In Applied sciences. ISSN 2076-3417, 2023, vol. 13, no. 9, pp. 1-15.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika Title Indentation hardness and elastic recovery of some hardwood species Author info Maciej Sydor ... [et al.] Author Sydor Maciej (20%)
Co-authors Pinkowski Grzegorz (20%)
Kučerka Martin 1980- (20%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (20%)
Antov Petar (10%)
Rogoziński Tomasz (10%)
Source document Applied Sciences. Vol. 12, č. 10 (2022), pp. [1-14]. - Basel : Multidisciplinary Digital Publishing Institute, 2022 Keywords drevo - wood stromy - trees drevársky priemysel Form. Descr. články - journal articles Language English Country Switzerland Annotation The purpose of the study was to measure the Brinell hardness (HB) of six wood species and evaluate the ability to recover the depth of the imprint (self-re-deformation). Straight-grain clear samples of ash, beech, alder, birch, iroko, and linden wood were prepared. Measurements were made in the three main reference timber cross-sections: radial (R), tangential (T), and axial/longitudinal (L) and with two measuring loads of 30 kG and 100 kG (294.2 N and 980.7 N). The tested wood species could be classified into hard (ash, beech), medium-hard (alder, birch, iroko), and soft (linden) wood species. The HBs of each tested wood species differed in the cross-sections, i.e., side hardness (R, T) and end hardness (L). Higher HB values were obtained at 100 kG load in all species and all three cross-sections. The lowest influence of the measurement force value on the HB value was revealed for the soft wood species (linden: 107–118%). This influence was visible for the other five medium-hard and hard wood species, ranging from 125% to 176%. The percentage of temporary imprint in total imprint depth (x/H) varied from 12 to 33% (linden 12–18%—the lowest self-re-deformation ability; beech 25–33%—the highest self-re-deformation ability). The results of this study underline that the higher the density of the wood, the higher the Brinell hardness, and, simultaneously, the greater the measurement force used, the higher the Brinell hardness measured. The ability of self-re-deformation in wood’s R and T cross-sections depends on the wood density and the measuring force used. In contrast, this ability only depends on the wood density in the L cross-section. Those observations imply that the compaction of the cell structure during side compression is mainly non-destructive, while the longitudinal deformation of the cell structure (the buckling of cell walls and fracture of ends of the cells) is to a great degree destructive and irreversible. These results can be used in the construction and furniture sectors, especially when designing products and planning the woodworking of highly loaded wood floors and furniture elements. URL Link na plný text Public work category ADC No. of Archival Copy 51834 Repercussion category BAUFLEUR, Andressa Midori Yamauchi - STANGERLIN, Diego Martins - FERREIRA, Matheus Rafael - PARIZ, Elisangela - RODOLFO JUNIOR, Francisco - PAULA, Edgley Alves de Oliveira - DE MELO, Rafael Rodolfo. Effect of acetylation on technological characteristics of Jacaranda copaia wood : part 1 - physical and mechanical properties. In Nativa (Sinop). ISSN 2318-7670, 2022, vol. 10, no. 2, pp. 277-282.
ATANASOV, Valentin - KOVATCHEV, Georgi - TODOROV, Tihomir. Study of the influence of basic process parameters on the roughness of surfaces during wood milling. In 10th Hardwood conference proceedings, Sopron, 12th-14th October 2022 [online]. Sopron : University of Sopron press, 2022, pp. 242-250 [cit. 2022-10-20]. ISBN 978-963-334-446-0. Dostupné na: https://doi.org/10.35511/978-963-334-446-0
WARCHOLINSKI, Bogdan - GILEWICZ, Adam. Surface engineering of woodworking tools, a review. In Applied sciences (Basel). ISSN 2076-3417, 2022, vol. 12, no. 20, pp. 1-19.
MILLANIYAGE, Kuluni - KOTLAREWSKI, Nathan - WALLIS, Louise - TAOUM, Assaad - NOLAN, Gregory. Janka Hardness evaluation of plantation-grown eucalyptus nitens for engineered flooring applications. In Buildings. ISSN 2075-53,9, 2022, vol. 12, no. 11, pp. 1-14.
ATANASOV, Valentin - KOVATCHEV, Georgi - TODOROV, Tihomir. Influence of main parameters of the milling process on the roughness when processing solid wood of meranti. In Pro ligno. ISSN 1841-4737, 2023, vol. 19, no. 2, pp. 3-10.
ŽIGON, Jure - STRAŽE, Aleš. Vpliv vlažnosti na mikrotrdoto smrekovine, določeno z vtiskanjem. In Les [online]. 2023, vol. 72, no. 1, pp. 5-16 [cit. 2023-09-06]. ISSN 2590-9932. Dostupné na: https://doi.org/10.26614/les-wood.2023.v72n01a01
KOCZAN, Grzegorz. Probing measurements of the Meyer hardness index of radial, tangential and cross section of various types of wood. In Annals of Warsaw university of life sciences SGGW : forestry and wood technology. ISSN 1898-5912, 2023, no. 121, pp. 21-27.
ATANASOV, Valentin - KOVATCHEV, Georgi - TODOROV, Tihomir. Study of the influence of basic process parameters on the roughness of surfaces during milling of scots pine wood. In Acta facultatis xylologiae Zvolen. ISSN 1336-3824, 2023, vol. 65, no. 2, pp. 89-98.
MILLANIYAGE, Kuluni - KOTLAREWSKI, Nathan - WALLIS, Louise - TAOUM, Assaad. Engineered flooring from low-density plantation hardwood : evaluation of long-term in-service trials. In Wood and fiber science. ISSN 0735-6161, 2024, vol. 56, no. 1, pp. 24-42.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika