Výsledky vyhľadávania
Názov Effect of low-thermal treatment on the particle size distribution in wood dust after milling Aut.údaje Martin Júda ... [et al.] Autor Júda Martin (35%)
Spoluautori Sydor Maciej (5%)
Rogoziński Tomasz (5%)
Kučerka Martin 1980- (25%) UMBFP07 - Katedra techniky a technológií
Pędzik Marta (5%)
Kminiak Richard (25%)
Zdroj.dok. Polymers. Vol. 15, no. 4 (2023), pp. [1-17]. - Basel : Multidisciplinary Digital Publishing Institute, 2023 Kľúč.slová spracovanie dreva - wood processing bukové drevo tepelné spracovanie - heat treatment Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Švajčiarsko URL Link na plný text Kategória publikačnej činnosti ADC Číslo archívnej kópie 53000 Kategória ohlasu 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.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Fine dust after sanding untreated and thermally modified spruce, oak, and meranti wood Aut.údaje Maciej Sydor, Jerzy Majka ... [et al.] Autor Sydor Maciej (5%)
Spoluautori 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%)
Zdroj.dok. European journal of wood and wood products. Vol. 81, no. 6 (2023), pp. 1455-1464. - Berlin : Springer-Verlag, 2023 Kľúč.slová drevný prach brúsenie smrekové drevo dubové drevo Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Nemecko Anotácia 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 Kategória publikačnej činnosti ADC Číslo archívnej kópie 53499 Kategória ohlasu 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.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Nástroje a náradie na ručné opracovanie dreva Aut.údaje Martin Kučerka a kol. Autor Kučerka Martin 1980-
Vyd.údaje 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 Vydanie 1. vyd. ISBN 978-80-557-2097-5 Typ el. zdroja Elektronické dokumenty (listy, články, monografie) Poznámka Bibliografia Kľúč.slová drevo - wood spracovanie dreva - wood processing ručné opracovanie dreva - manual woodworking drevorezné nástroje - wood carving tools náradie - tools pracovné prostredie - work environment Form.deskr. CD-ROM - CD-ROM, vysokoškolské skriptá - college textbooks Jazyk dok. slovenčina Krajina Slovenská republika Systematika 674.02 674.03 73.023.1-035.3 621.715.2 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xkni - KNIHY Počet ex. 3, z toho voľných 1, prezenčne 1 Signatúra Lokácia Dislokácia Umiestnenie Info 391128 Univerzita Mateja Bela UK Univerzálna študovňa len prezenčne 391129 Univerzita Mateja Bela UK Referát absenčných výpožičiek vypož. (do 21.05.2024) 391130 Univerzita Mateja Bela UK Referát absenčných výpožičiek Názov Návrh a vyhotovenie názornej učebnej pomôcky pre vyučovací predmet Lesná ťažba, téma: Základy náuky o dreve Podnázov bakalárska práca Aut.údaje Dominika Brotková; školiteľ: Alena Očkajová Autor Brotková Dominika
Ďalší autori Očkajová Alena 1961- (Školiteľ (konzultant))
Korp. Univerzita Mateja Bela . Fakulta prírodných vied . Katedra techniky a technológií , Banská Bystrica, Slovensko Vyd.údaje Banská Bystrica , 2023. - 62 s. + 2 prílohy Kľúč.slová názorné učebné pomôcky - illustrative teaching aids didaktické autotesty - didactic self-tests lesná ťažba - logging drevo - wood Form.deskr. bakalárske práce - bachelor’s theses Jazyk dok. slovenčina Krajina Slovenská republika Systematika 37.091.64 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xk - Kvalifikačné práce Počet ex. 1, z toho voľných 0 Názov Návrhy pracovných námetov v predmete Technické praktiká (práca s drevom) Podnázov bakalárska práca Aut.údaje Romana Jobbová; školiteľ: Ján Stebila Autor Jobbová Romana
Ďalší autori Stebila Ján 1979- (Školiteľ (konzultant))
Korp. Univerzita Mateja Bela . Fakulta prírodných vied . Katedra techniky a technológií , Banská Bystrica, Slovensko Vyd.údaje Banská Bystrica , 2022. - 48 s. Kľúč.slová technické praktiká pracovné námety - work subjects drevo - wood obrábanie dreva technické vzdelávanie - technical education Form.deskr. bakalárske práce - bachelor’s theses Jazyk dok. slovenčina Krajina Slovenská republika Systematika 374.32 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xk - Kvalifikačné práce Počet ex. 1, z toho voľných 0, prezenčne 1 Názov Návrhy pracovných námetov v predmete Technické praktiká (práca s materiálom) Podnázov bakalárska práca Aut.údaje Ľubica Stanková; školiteľ: Ján Stebila Autor Stanková Ľubica
Ďalší autori Stebila Ján 1979- (Školiteľ (konzultant))
Korp. Univerzita Mateja Bela . Fakulta prírodných vied . Katedra techniky a technológií , Banská Bystrica, Slovensko Vyd.údaje Banská Bystrica , 2022. - 47 s. Kľúč.slová technické praktiká pracovné námety - work subjects drevo - wood technická tvorivosť technické vzdelávanie - technical education Form.deskr. bakalárske práce - bachelor’s theses Jazyk dok. slovenčina Krajina Slovenská republika Systematika 374.32 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xk - Kvalifikačné práce Počet ex. 1, z toho voľných 0, prezenčne 1 Názov Quantifying the finest particles in dust fractions created during the sanding of untreated and thermally modified beech wood Aut.údaje Jerzy Majka, Maciej Sydor ... [et al.] Autor Majka Jerzy (10%)
Spoluautori 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%)
Zdroj.dok. BioResources. Vol. 17, no. 1 (2022), pp. 7-20. - Raleigh : North Carolina State University, 2022 Kľúč.slová sitová analýza brúsenie dreva bukové drevo Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Spojené štáty URL Link na plný text Link na zdrojový dokument Kategória publikačnej činnosti ADC Číslo archívnej kópie 51418 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov The influence of thermal modification of oak, spruce and meranti blanks on surface roughness during sanding Aut.údaje Martin Kučerka ... [et al.] Autor Kučerka Martin 1980- (30%) UMBFP07 - Katedra techniky a technológií
Spoluautori Kminiak Richard (30%)
Krišťák Ľuboš (20%)
Rogozinski Tomasz (10%)
Pedzik Marta (10%)
Zdroj.dok. 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 Kľúč.slová hydrotermicky upravené drevo brúsenie povrchové úpravy dreva Form.deskr. príspevky v zborníku - proceedings papers Jazyk dok. angličtina Krajina Bulharsko Anotácia 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. Kategória publikačnej činnosti AFC Číslo archívnej kópie 52105 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov The effect of the granulometric composition of beech chips from a CNC machining center on the environmental separation technique Aut.údaje Martin Kučerka ... [et al.] Autor Kučerka Martin 1980- (30%) UMBFP07 - Katedra techniky a technológií
Spoluautori Očkajová Alena 1961- (25%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (25%)
Pędzik Marta (10%)
Rogozinski Tomasz (10%)
Zdroj.dok. Acta Facultatis Xylologiae Zvolen. Roč. 64, č. 1 (2022), s. 89-97. - Zvolen : Technická univerzita vo Zvolene, 2022 Kľúč.slová drevospracujúci priemysel drevo - wood ekológia - ecology Form.deskr. články - journal articles Jazyk dok. slovenčina Krajina Slovenská republika Anotácia 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 Kategória publikačnej činnosti ADN Číslo archívnej kópie 51836 Kategória ohlasu 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.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Indentation hardness and elastic recovery of some hardwood species Aut.údaje Maciej Sydor ... [et al.] Autor Sydor Maciej (20%)
Spoluautori Pinkowski Grzegorz (20%)
Kučerka Martin 1980- (20%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (20%)
Antov Petar (10%)
Rogoziński Tomasz (10%)
Zdroj.dok. Applied Sciences. Vol. 12, č. 10 (2022), pp. [1-14]. - Basel : Multidisciplinary Digital Publishing Institute, 2022 Kľúč.slová drevo - wood stromy - trees drevársky priemysel Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Švajčiarsko Anotácia 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 Kategória publikačnej činnosti ADC Číslo archívnej kópie 51834 Kategória ohlasu 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.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika