Výsledky vyhľadávania
Názov Comparison of particles from the sanding process of spruce and oak on a narrow belt sander Aut.údaje Martin Kučerka ... [et al.] Autor Kučerka Martin 1980- (40%) UMBFP07 - Katedra techniky a technológií
Spoluautori Adamčík Lukáš (15%)
Júda Martin (15%)
Kminiak Richard (15%)
Očkajová Alena 1961- (15%) UMBFP07 - Katedra techniky a technológií
Zdroj.dok. Trieskové a beztrieskové obrábanie dreva : vedecký časopis. Č. 14 (2024), s. 135-142. - Zvolen : Technická univerzita vo Zvolene, 2024 ; Trieskové a beztrieskové obrábanie dreva medzinárodná vedecká konferencia Kľúč.slová brúsenie dreva smrekové drevo dubové drevo Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Slovenská republika Anotácia The paper deals with the microscopic analysis and comparison of particles from the sanding process of spruce and oak on a narrow belt sander. The values of all sizes obtained from the microscope measurements ranged over a wide range of all sizes between 3-1000 μm. Chips with sizes < 100.0-10.0 μm were the most prevalent, accounting for 50% and 47% of the total sizes present in the oak and spruce samples, respectively. The presence of chips <10.0 μm in size was present in oak samples 37% and in spruce samples 33% of the total number of chips. Chips of larger sizes were present in 13 % of the oak samples and 20 % of the spruce samples. The study of sizes below <10.0 μm showed that, based on medians, the most frequently occurring splinter size was 5.43 μm diameter for both species equally. In both samples, the sizes ranged from 3.43 to 9.71 μm. The study of dimensions below <100.0-10.0 μm showed that the most frequently occurring dimensions based on medians were chips with a diameter of approximately 30 μm for oak and chips with a diameter of approximately 28 μm for spruce. URL Link na zdrojový dokument Kategória publikačnej činnosti AFD Číslo archívnej kópie 54823 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ 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 Influence of spruce wood form on ignition activation energy Aut.údaje Jozef Martinka ... [et al.] Autor Martinka Jozef (25%)
Spoluautori Mózer Vladimír (25%)
Hroncová Emília 1977- (25%) UMBFP04 - Katedra životného prostredia
Ladomerský Juraj 1948- (25%) UMBFP04 - Katedra životného prostredia
Zdroj.dok. Wood Research. Roč. 60, č. 5 (2015), s. 815-822. - Bratislava : Výskumný ústav papiera a celulózy, Slovenský drevársky výskumný ústav, 2015 Kľúč.slová smrekové drevo spaľovanie smrekového dreva aktivačná energia spruce spruce wood combusting activation energy Jazyk dok. angličtina Krajina Slovenská republika Systematika 504 Kategória publikačnej činnosti ADN Číslo archívnej kópie 34749 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 spruce wood heat treatment on its thermal stability and burning process Aut.údaje Jozef Martinka ... [et al.] Autor Martinka Jozef (50%)
Spoluautori Hroncová Emília 1977- (30%) UMBFP04 - Katedra životného prostredia
Chrebet Tomáš (10%)
Balog Karol (10%)
Zdroj.dok. European journal of wood and wood products. Vol. 72, no. 4 (2014), pp. 477-486. - Berlin : Springer-Verlag, 2014 Kľúč.slová smrekové drevo tepelné spracovanie - heat treatment proces horenia combustion products fire risk thermal treatment of wood Jazyk dok. angličtina Krajina Spojené štáty Systematika 504 Anotácia This paper deals with the assessment of the influence of heat treatment of Norway spruce wood (Picea abies L.) on its thermal stability and burning process. Three types of samples were used for the research. The first group was comprised of untreated samples. The second group was comprised of samples heat treated according to the ThermoWood—Thermo-S thermal programme (maximum temperature during heat treatment is 190 C), and the third group was modified according to the ThermoWood—Thermo-D thermal programme (maximum temperature during heat treatment is 212 C). The influence of heat treatment on the burning process was assessed based on the heat release rate, effective heat of combustion and the yield of carbon monoxide. The influence of heat treatment on the thermal stability was assessed based on the resistant residue weight. Heat release rate, effective heat of combustion, yield of carbon monoxide and resistant residue weight were determined with a cone calorimeter for different heat flux densities. The results obtained prove that the spruce wood heat treatment has an important influence on the decrease of the maximum heat release rate and the increase of resistant residue weight. The results obtained further prove that the heat treatment has only a modest influence on the increase of the carbon monoxide yield, and its influence on the effective heat of combustion significantly depends on the heat flux density Kategória publikačnej činnosti ADC Číslo archívnej kópie 30536 Kategória ohlasu OSVALDOVA MAKOVICKA, Linda - GASPERCOVA, Stanislava - MITRENGA, Patrik - OSVALD, Anton. The influence of density of test specimens on the quality assessment of retarding effects of fire retardants. In Wood research. ISSN 1336-4561, 2016, vol. 61, no. 1, pp. 35-42.
TODARO, Luigi - RITA, Angelo - CETERA, Paola - D'AURIA, Maurizio. Thermal treatment modifies the calorific value and ash content in some wood species. In Fuel. ISSN 0016-2361, 2015, vol. 140, pp. 1-3.
YUN, Hong - TU, Dengyun - LI, Kaifu - HUANG, Jun - OU, Lifang. Variation and correlation of heat-treated wood's crystalline structure and impact toughness. In Bioresources. ISSN 1930-2126, 2015, vol. 10, no. 1, pp. 1487-1494.
HOVANEC, Michal - PÍĽA, Ján - KORBA, Peter - PAČAIOVÁ, Hana. Plant simulation as an instrument of logistics and transport of materials in a digital factory. In Nase More. ISSN 0469-6255, 2015, vol. 62, pp. 187-192.
HOVANEC, Michal - SINAY, Juraj - KAMENICKÝ, Lukáš - SKŘEHOT, Petr - FRANTIŠEK, Hrozek. Evaluation of practical application of plant simulation in the form of experiments. In Nase More. ISSN 0469-6255, 2015, vol. 62, pp. 193-199.
OSVALDOVÁ MAKOVICKÁ, Linda - OSVALD, Anton - KAČÍKOVÁ, Danica. Char layer of various tree parts from selected coniferous wood. In Advanced materials research. ISSN 1022-6680, 2014, vol. 1001, pp. 276-281.
GALLA, Stefan - MAJLINGOVA, Andrea - SUCHOMEL, Jozef. Fire safety aspects of wood as a renewable energy source. In Advanced materials research. ISSN 1022-6680, 2014, vol. 1001, pp. 312-317.
MITTEROVÁ, Iveta - ZACHAR, Martin - RUŽINSKÁ, Eva - MAJLINGOVÁ, Andrea. Ignitability of unprotected and retardant protected samples of spruce wood. In Advanced materials research. ISSN 1022-6680, 2014, vol. 1001, pp. 330-335.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Analýza zrnitosti piliny z procesov pílenia suchého smrekového a dubového dreva Aut.údaje Martin Kučerka, Alena Očkajová Autor Kučerka Martin 1980- (50%) UMBFP07 - Katedra techniky a technológií
Spoluautori Očkajová Alena 1961- (50%) UMBFP07 - Katedra techniky a technológií
Zdroj.dok. Trieskové a beztrieskové obrábanie dreva 2014 : zborník prednášok, IX. medzinárodná vedecká konferencia, Zvolen, 11. - 13. september 2014. S. 105-110. - Zvolen : Technická univerzita, 2014 / Dzurenda Ladislav ; Banski Adrián ; Delijski Nencho ; Goglia Vladimír ; Orlowski Kazimierz A. ; Rousek Miroslav ; Siklienka Mikuláš ; Barcík Štefan ; Očkajová Alena 1961- ; Trieskové a beztrieskové obrábanie dreva 2014 medzinárodná vedecká konferencia Kľúč.slová pílenie trieska piliny zrnitosť smrekové drevo dubové drevo Jazyk dok. slovenčina Krajina Slovenská republika Systematika 630 Kategória publikačnej činnosti AFD Číslo archívnej kópie 30542 Kategória ohlasu KOLEDA, Pavol - KOLEDA, Peter. Optical measurements of sawdust dimensions. In Wood research. ISSN 1336-4561, 2016, vol. 61, no. 3, pp. 505-512.
KOLEDA, Pavol - HRČKOVÁ, Mária. Zisťovanie farby termicky modifikovaného dreva pomocou programu Matlab. In Acta Facultatis technicae. ISSN 1336-4472. 2017, roč. 22, č. 2, s. 9-16.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov Vplyv horenia na chemické a mikroskopické zmeny smrekového dreva Aut.údaje František Kačík ... [et al.]; rec. Miroslava Netopilová, Peter Horbaj, Danica Kačíková Autor Kačík František (20%)
Spoluautori Giertlová Zuzana (20%)
Marková Iveta 1971- (20%)
Osvald Anton (20%)
Čunderlík Igor (20%)
Ďalší autori Netopilová Miroslava (Recenzent)
Horbaj Peter (Recenzent)
Kačíková Danica (Recenzent)
Vyd.údaje Zvolen : Technická univerzita vo Zvolene , 2001. - 85 s. Vydanie 1. vyd. ISBN 80-228-1034-7 Kľúč.slová horenie smrekové drevo burning spruce wood Jazyk dok. slovenčina Krajina Slovenská republika Systematika 54 Kategória publikačnej činnosti BAB Číslo archívnej kópie 34557 Kategória ohlasu KAČÍKOVÁ, Danica. Alterations of selected characteristics of spruce and larch wood after radiating thermal source loading. In Acta Facultatis Xylologiae. ISSN 1336-3824, 2007, vol. 49, no. 1, pp. 53-59.
ZACHAR, Martin - SKROVNÝ, Rastislav. The influence of the radiant heat on the thermal degradation of specimens of spruce. In Acta Facultatis Xylologiae. ISSN 1336-3824, 2007, vol. 49, no. 1, pp. 61-68.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov The changes of lignin in burning of spruce wood Aut.údaje F. Kačík, I. Marková, A. Osvald Autor 3 (33%)
Spoluautori Marková Iveta 1971- (33%) FP04
3 (33%)
Zdroj.dok. Cellulose Chemistry and Technology. Roč. 33, č. 3-4 (1999), s. 267-275. - Bucuresti : Editura Academei Romane, 1999 Kľúč.slová infračervené spektroskopy - infrared spectroscopes smrekové drevo infrared spektroscopes spruce wood Jazyk dok. angličtina Krajina Rumunsko Systematika 665.94 Anotácia The paper deals with isolated lignins analysis from thermally degraded spruce wood. On the TAPPI and dioxan lignins basis, the separate layers have been compared, indicated according to the temperature intervals in the samples being investigated Kategória publikačnej činnosti ADC Číslo archívnej kópie 28130 Kategória ohlasu TUREKOVÁ Ivana - HARANGOZÓ Jozef - MARTINKA Jozef. Influence of retardants to burning lignocellulosic materials. In Research papers : Faculty of materials science and technology Slovak University of Technology in Trnava. ISSN 1338-0532, 2011, vol. 19, no. 30, pp. 115-123.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov Zmeny v chemickom zložení smrekového dreva po jeho tepelnom zaťažení Aut.údaje Iveta Marková, Anton Osvald, František Kačík Autor Marková Iveta 1971- (34%) UMBFP04 - Katedra životného prostredia
Spoluautori Osvald Anton (33%)
Kačík František (33%)
Zdroj.dok. SPBI SPEKTRUM. Roč. 2, č. 1 (1999), s. 30-34. - Ostrava : Sdružení požárního a bezpečnostního inženýrství se sídlem VŠB - TU Ostrava, 1999 Kľúč.slová smrekové drevo termická degradácia spruce wood Jazyk dok. slovenčina Krajina Slovenská republika Systematika 665.94 Kategória publikačnej činnosti ADE Číslo archívnej kópie 28132 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ