Search results

Records found: 7  
Your query: Author Sysno/Doc.kind = "^umb_un_auth 0227797 xpca^"
  1. TitleFine dust after sanding untreated and thermally modified spruce, oak, and meranti wood
    Author infoMaciej 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
    LanguageEnglish
    CountryGermany
    AnnotationAirborne 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.
    URLLink na zdrojový dokument
    Public work category ADC
    No. of Archival Copy53499
    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
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
  2. TitleInfluence of spruce wood form on ignition activation energy
    Author infoJozef Martinka ... [et al.]
    Author Martinka Jozef (25%)
    Co-authors Mózer Vladimír (25%)
    Hroncová Emília 1977- (25%) UMBFP04 - Katedra životného prostredia
    Ladomerský Juraj 1948- (25%) UMBFP04 - Katedra životného prostredia
    Source document Wood Research. Roč. 60, č. 5 (2015), s. 815-822. - Bratislava : Výskumný ústav papiera a celulózy, Slovenský drevársky výskumný ústav, 2015
    Keywords smrekové drevo   spaľovanie smrekového dreva   aktivačná energia   spruce   spruce wood combusting   activation energy  
    LanguageEnglish
    CountrySlovak Republic
    systematics 504
    Public work category ADN
    No. of Archival Copy34749
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
    unrecognised

    unrecognised

  3. TitleAnalýza zrnitosti piliny z procesov pílenia suchého smrekového a dubového dreva
    Author infoMartin Kučerka, Alena Očkajová
    Author Kučerka Martin 1980- (50%) UMBFP07 - Katedra techniky a technológií
    Co-authors Očkajová Alena 1961- (50%) UMBFP07 - Katedra techniky a technológií
    Source document 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
    Keywords pílenie   trieska   piliny   zrnitosť   smrekové drevo   dubové drevo  
    LanguageSlovak
    CountrySlovak Republic
    systematics 630
    Public work category AFD
    No. of Archival Copy30542
    Repercussion category 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.
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    unrecognised

    unrecognised

  4. TitleThe influence of spruce wood heat treatment on its thermal stability and burning process
    Author infoJozef Martinka ... [et al.]
    Author Martinka Jozef (50%)
    Co-authors Hroncová Emília 1977- (30%) UMBFP04 - Katedra životného prostredia
    Chrebet Tomáš (10%)
    Balog Karol (10%)
    Source document European journal of wood and wood products. Vol. 72, no. 4 (2014), pp. 477-486. - Berlin : Springer-Verlag, 2014
    Keywords smrekové drevo   tepelné spracovanie - heat treatment   proces horenia   combustion products   fire risk   thermal treatment of wood  
    LanguageEnglish
    CountryUnited States of America
    systematics 504
    AnnotationThis 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
    Public work category ADC
    No. of Archival Copy30536
    Repercussion category 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.
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
    unrecognised

    unrecognised

  5. TitleVplyv horenia na chemické a mikroskopické zmeny smrekového dreva
    Author infoFrantišek Kačík ... [et al.]; rec. Miroslava Netopilová, Peter Horbaj, Danica Kačíková
    Author Kačík František (20%)
    Co-authors Giertlová Zuzana (20%)
    Marková Iveta 1971- (20%)
    Osvald Anton (20%)
    Čunderlík Igor (20%)
    Another authors Netopilová Miroslava (Recenzent)
    Horbaj Peter (Recenzent)
    Kačíková Danica (Recenzent)
    Issue dataZvolen : Technická univerzita vo Zvolene , 2001. - 85 s.
    Issue1. vyd.
    ISBN80-228-1034-7
    Keywords horenie   smrekové drevo   burning   spruce wood  
    LanguageSlovak
    CountrySlovak Republic
    systematics 54
    Public work category BAB
    No. of Archival Copy34557
    Repercussion category 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.
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
  6. TitleThe changes of lignin in burning of spruce wood
    Author infoF. Kačík, I. Marková, A. Osvald
    Author3 (33%)
    Co-authors Marková Iveta 1971- (33%) FP04
    3 (33%)
    Source documentCellulose Chemistry and Technology. Roč. 33, č. 3-4 (1999), s. 267-275. - Bucuresti : Editura Academei Romane, 1999
    Keywords infračervené spektroskopy - infrared spectroscopes   smrekové drevo   infrared spektroscopes   spruce wood  
    LanguageEnglish
    CountryRomania
    systematics 665.94
    AnnotationThe 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
    Public work category ADC
    No. of Archival Copy28130
    Repercussion categoryTUREKOVÁ 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.
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    unrecognised

    unrecognised

  7. TitleZmeny v chemickom zložení smrekového dreva po jeho tepelnom zaťažení
    Author infoIveta Marková, Anton Osvald, František Kačík
    Author Marková Iveta 1971- (34%) UMBFP04 - Katedra životného prostredia
    Co-authors Osvald Anton (33%)
    Kačík František (33%)
    Source documentSPBI SPEKTRUM. Roč. 2, č. 1 (1999), s. 30-34. - Ostrava : Sdružení požárního a bezpečnostního inženýrství se sídlem VŠB - TU Ostrava, 1999
    Keywords smrekové drevo   termická degradácia   spruce wood  
    LanguageSlovak
    CountrySlovak Republic
    systematics 665.94
    Public work category ADE
    No. of Archival Copy28132
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    unrecognised

    unrecognised



  This site uses cookies to make them easier to browse. Learn more about how we use cookies.