Výsledky vyhľadávania
Názov Design and comparison of a suitable dust separation technique during the machining process in a CNC machining center Aut.údaje Martin Kučerka, Alena Očkajová ... [et al.] Autor Kučerka Martin 1980- (30%) UMBFP07 - Katedra techniky a technológií
Spoluautori Očkajová Alena 1961- (20%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (20%)
Rogoziński Tomasz (10%)
Sydor Maciej (5%)
Pędzik Marta (5%)
Giudice Valentina Lo (5%)
Todaro Luigi (5%)
Zdroj.dok. Annals of Warsaw University of Life Sciences - SGGW : forestry and wood technology. No. 122 (2023), pp. 99-107. - Varšava : Wydawnictwo SGGW, 2023 Kľúč.slová spracovanie dreva - wood processing obrábacie stroje Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Poľsko Anotácia Design and comparison of a suitable separation technique during the machining process in a CNC machining center. The paper deals with the issue of chip extraction from the milling process in a CNC machining center. The paper aimed to compare the particle size distribution of dust generated in the milling process of natural wood (beech, oak, and spruce) and MDF on a 5-axis CNC machining center. The particle size distribution was evaluated using sieve analysis of samples from the total weight of the captured dust. The results showed that the processing of natural wood is mainly characterized by the formation of coarse dust fractions (2 mm - 1 mm sieves), while the processing of MDF was associated with the formation of fine dust fractions with a size below 100 μm. Another of the objectives was to compare the separation values on the fractional separation curves of selected mechanical separators and filters with the size distribution of dust particles and to propose a suitable separation technique that meets the criteria of "best available technique" (BAT) in the processing of natural wood and MDF, as well as to point out the creation of and the production of harmful dust fractions, which arise mainly during the processing of MDF. We intended to assess whether the introduction of the given technology with the given material mix will also require modifications on the side of the extraction device. URL Link na zdrojový dokument Link na zdrojový dokument Kategória publikačnej činnosti ADE Číslo archívnej kópie 53500 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 ... [et al.]; rec. Miroslav Dado, Milan Bernát Autor Kučerka Martin 1980- (40%) UMBFP07 - Katedra techniky a technológií
Spoluautori Očkajová Alena 1961- (20%) UMBFP07 - Katedra techniky a technológií
Kvasnová Petra 1978- (20%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (20%)
Ďalší autori Dado Miroslav 1976- (Recenzent)
Bernát Milan (Recenzent)
Vyd.údaje Banská Bystrica : Vydavateľstvo Univerzity Mateja Bela - Belianum , 2023. - 102 s. Vydanie 1. vyd. ISBN 978-80-557-2097-5 Kľúč.slová drevorezné nástroje - wood carving tools náradie - tools ručné opracovanie dreva - manual woodworking ergonómia - human factors engineering - ergonomics pracovné prostredie - work environment Form.deskr. vysokoškolské skriptá - college textbooks Jazyk dok. slovenčina Krajina Slovenská republika Kategória publikačnej činnosti BCI Číslo archívnej kópie 54077 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov Long-term operation of pulse-jet filters for wood dust Aut.údaje Tomasz Rogoziński, Czesław Dembiński ... [et al.] Autor Rogoziński Tomasz (25%)
Spoluautori Dembiński Czesław (15%)
Potok Zbigniew (15%)
Očkajová Alena 1961- (15%) UMBFP07 - Katedra techniky a technológií
Kučerka Martin 1980- (15%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (15%)
Zdroj.dok. Annals of Warsaw University of Life Sciences - SGGW : forestry and wood technology. No. 121 (2023), pp. 61-65. - Varšava : Wydawnictwo SGGW, 2023 Kľúč.slová filtrácia - filtration textília drevný prach Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Poľsko Anotácia Long-term operation of pulse-jet filters for wood dust. The study specifies the value of flow resistance and separation efficiency of filter material during long-term use in pulse-jet filters for wood dust. The experiments were carried out for one type of material working in two different filtration installations in one furniture factory. The bags were obtained from the installations after working for 67, 133 and 272 days, respectively. All tests were performed on the pilot-scale test stand under identical filtration conditions. Studies have shown that long-term filter material use increases airflow resistance and improves filtration efficiency. The range of these changes depends on the operating conditions of the pulse-jet filters. The obtained results made it possible to determine the properties of the long-term use of filter materials in various filtration conditions. URL Link na zdrojový dokument Link na zdrojový dokument Kategória publikačnej činnosti ADE Číslo archívnej kópie 53505 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 Vybrané výsledky riešenia projektu KEGA so zameraním na oblasť bezpečnosti práce pre ručné strojné zariadenia v interakcii človek - stroj Aut.údaje Martin Kučerka, Alena Očkajová, Richard Kminiak Autor Kučerka Martin 1980- (40%) UMBFP07 - Katedra techniky a technológií
Spoluautori Očkajová Alena 1961- (30%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (30%)
Zdroj.dok. Technika a vzdelávanie : časopis zameraný na technické vzdelávanie v základných, stredných, i na vysokých školách, na oblasť základného a aplikovaného výskumu, aplikáciu informačných technológií vo výučbe odborných predmetov. Roč. 12, č. 2 (2023), s. 55-59. - Banská Bystrica : Vydavateľstvo Univerzity Mateja Bela - Belianum, 2023 Kľúč.slová projekty - projects ergonómia - human factors engineering - ergonomics výskumné výsledky bezpečnosť a ochrana zdravia pri práci - BOZP - bezpečnosť práce - occupational safety elektrické ručné náradie Form.deskr. články - journal articles Jazyk dok. slovenčina Krajina Slovenská republika URL Link na plný text Kategória publikačnej činnosti BDF Číslo archívnej kópie 53749 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 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 Sustainable manufacturing process in context of wood machining by milling Aut.údaje Alena Očkajová ... [et al.] Autor Očkajová Alena 1961- (34%) UMBFP07 - Katedra techniky a technológií
Spoluautori Kminiak Richard (33%)
Kučerka Martin 1980- (33%) UMBFP07 - Katedra techniky a technológií
Zdroj.dok. Production of engineering materials. Pp. 92-99. - Zielona Góra : Uniwersytet Zielonogórski, 2022 / Bydałek Adam ; Stryjski Roman ; EMSET 2021 Engineering materials : safety - environment - technology Kľúč.slová trvalá udržateľnosť spotreba energie - energy consumption experimentálny výskum Form.deskr. príspevky v zborníku - proceedings papers Jazyk dok. slovenčina Krajina Poľsko Kategória publikačnej činnosti AFC Číslo archívnej kópie 51837 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov The dust separation efficiency of filter bags used in the wood‐based panels furniture factory Aut.údaje Czesław Dembiński, Zbigniew Potok ... [et al.] Autor Dembiński Czesław (20%)
Spoluautori Potok Zbigniew (20%)
Kučerka Martin 1980- (15%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (15%)
Očkajová Alena 1961- (15%) UMBFP07 - Katedra techniky a technológií
Rogoziński Tomasz (15%)
Zdroj.dok. Materials. Vol. 15, no. 9 (2022), pp. [1-14]. - Basel : Multidisciplinary Digital Publishing Institute, 2022 Kľúč.slová separácia drevný prach filtrácia - filtration Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Švajčiarsko URL Link na zdrojový dokument Kategória publikačnej činnosti ADC Číslo archívnej kópie 51690 Kategória ohlasu REH, Roman - KRISTAK, Lubos - ANTOV, Petar. Advanced eco-friendly wood-based composites. In Materials. ISSN 1996-1944, 2022, vol. 15, no. 23, pp. 1-5.
ZHOU, Xihe - LI, Xiaoxu - CUI, Zhongwen - WU, Lin - ZHOU, Handong - LU, Xiaoning. Combustible wood dust explosions and impacts on environments and health - a review. In Environmental research. ISSN 0013-9351, 2023, vol. 216, art. no. 114658, pp. 1-17.
SATINOVA, Viktoria - HLAVAC, Pavol - IZDINSKY, Jan - REINPRECHT, Ladislav. Rot evaluation in spruce logs and rot reflection into dimensions of chips for particleboards. In Acta facultatis xylologiae Zvolen. ISSN 1336-3824, 2022, vol. 64, no. 2, pp. 5-16.
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.
LI, Kun - LI, Yukai - CONG, Rui - XU, Zheng - ZHANG, Lei - LIU, Libing - ZHANG, Song. State feedback control promotes transition efficiency of bag filters. In International journal of control automation and systems. ISSN 1598-6446, 2024, vol. 22, no. 1, pp. 323-332.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Assessment of the mass and surface area of the scots pine (Pinus sylvestris L.) needles Aut.údaje Monika Sporek, Kazimierz Sporek ... [et al.] Autor Sporek Monika (20%)
Spoluautori Sporek Kazimierz (20%)
Stebila Ján 1979- (15%) UMBFP07 - Katedra techniky a technológií
Kučerka Martin 1980- (15%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (15%)
Lubis Muhammad Adly Rahandi (15%)
Zdroj.dok. Applied Sciences. Vol. 12, no. 16 (2022), pp. [1-13]. - Basel : Multidisciplinary Digital Publishing Institute, 2022 Kľúč.slová ihly borovica lesná (Pinus Sylvestris L.) laboratórne merania Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Švajčiarsko Anotácia The assessment of the surface area of all leaves from a tree crown is regarded as one of the key parameters in scaling ecophysiological processes, such as growth, carbon budget, and water management. The purpose of this study was to investigate the variation of the mass and surface area of Scots pine needles, obtained from trees growing in the same habitat conditions but at different stock densities, therefore occupying different biosocial positions. The mass of needles and the leaf area index (LAI) were determined for an even-aged 33-year-old Scots pine stand located at a fresh mixed coniferous forest site in southwest Poland (50 320 N; 17 420 E). The needles, collected from all the sample trees, were subjected to a biometric analysis to determine the total mass of needles from each tree, the mass of 1000 needle pairs, the number of needles per crown, and the needle length distribution. Based on the actual measurements, we derived allometric equations for finding the fresh mass (FMN) and the surface area of the needles (SN), using the diameter at breast height (DBH) as an independent variable. The relationships between the mass of the needles and the DBH were significant (p < 0.0001), and so were those between the surface area of the needles and the DBH (p < 0.001). The fresh mass of needles for the tree stands varied from 6458 kg ha1 to 11,102 kg ha1. The LAI was in the range of 3.2 to 5.4 m2 m2. The mean value of the LAI for the Scots pine stand was 4 m2 m2. Further studies are required and more algorithms need to be developed for the quantitative assessment of the LAI in Scots pine trees, using a larger number of sample trees with more varied biometric features. URL Link na zdrojový dokument Kategória publikačnej činnosti ADC Číslo archívnej kópie 52018 Kategória ohlasu 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.
SAPUTRA, Suroto Hadi - FERNANDES, Andrian - MAHARANI, Rizki. Effect of combustion method on the yield, specific gravity, and color of oleoresin of Dipterocarpus grandiflorus. In AIP conference proceedings : the second international conference of lignocellulose : 2nd ICONLIG, Bogor, 24th-25th November 2022 [online]. 2023, vol. 2973, no. 1, pp. 1-7 [cit. 2024-04-15]. ISSN 1551-7616. Dostupné na: https://doi.org/10.1063/5.0184803
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Influence of heat treatment of wood on chip size during milling Aut.údaje Martin Kučerka, Alena Očkajová, Richard Kminiak Autor Kučerka Martin 1980- (34%) UMBFP07 - Katedra techniky a technológií
Spoluautori Očkajová Alena 1961- (33%) UMBFP07 - Katedra techniky a technológií
Kminiak Richard (33%)
Zdroj.dok. Trieskové a beztrieskové obrábanie dreva : vedecký časopis. Č. 13 (2022), s. 161-168. - Zvolen : Technická univerzita vo Zvolene, 2022 ; Trieskové a beztrieskové obrábanie dreva medzinárodná vedecká konferencia Kľúč.slová termodrevo frézovanie - milling drevný prach Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Slovenská republika Anotácia The aim of the paper is to determine and compare the particle size analysis of chips resulting from the milling process of natural and heat-treated oak and spruce wood at different temperatures (160 °C, 180 °C, 200 °C and 220 °C). The individual percentages were divided according to the mesh size of the sieves into a coarse fraction using a mesh size of 2 mm and 1 mm, a medium coarse fraction with a mesh size of 0.5 mm and 0.250 mm and a fine fraction with a mesh size of 0.125 mm; 0.08 mm; 0.063 mm; 0.032 mm and the bottom of the screening machine, depending on the type of wood and the treatment temperature. When milling oak, the highest proportion of fine particles was recorded at a treatment temperature of 220 °C - 13.18 %. In this way, we can state that the milling showed the effect of a decrease in the mechanical properties of wood with increasing treatment temperature, which is more brittle. The percentage of the finest particles in spruce wood increases with increasing treatment temperature, from 0.53 % in the milling of natural wood to 11.29 % in the milling of heat-treated wood at 220 °C. URL Link na zdrojový dokument Kategória publikačnej činnosti AFD Číslo archívnej kópie 52022 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ