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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu dan Teknologi Hasil Hutan Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Penelitian Hasil Hutan Cannarium (Jurnal Ilmu-ilmu Pertanian) Journal of Degraded and Mining Lands Management Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Teknik Sipil Indonesian Journal of Chemistry Jurnal Penelitian Sosial dan Ekonomi Kehutanan Gorontalo Journal of Forestry Research Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Jamu Indonesia Jurnal Penelitian Hasil Hutan Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society Jurnal Sylva Lestari Makara Journal of Science Jurnal Ilmu Kehutanan Indonesian Journal of Jamu Jurnal Penelitian Hasil Hutan
Lina Karlinasari
Department Of Forest Products, Faculty Of Forestry And Environment, IPB University, Darmaga Campus, Bogor 16680, West Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences Other

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Journal : Jurnal Ilmu dan Teknologi Hasil Hutan

 1 
The aim of this study was to evaluate dynamic modulus of elasticity (MOEdyn) of woods after tested those natural durability. Field tests by grave yard test were applied to prove the natural durability of jackfruit and mangium woods in ground contact. The method of non-destructive testing based on ultrasonic wave propagation was carried out to define ultrasonic velocity than that used for evaluating MOEdyn. The result showed that ultrasonic velocity of jackfruit and mangium woods decreased 3% and Lina KARLINASARI; Ina RITA; Istie Sekartining RAHAYU
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 2 No. 1 (2009): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The aim of this study was to evaluate dynamic modulus of elasticity (MOEdyn) of woods after tested those natural durability. Field tests by grave yard test were applied to prove the natural durability of jackfruit and mangium woods in ground contact. The method of non-destructive testing based on ultrasonic wave propagation was carried out to define ultrasonic velocity than that used for evaluating MOEdyn. The result showed that ultrasonic velocity of jackfruit and mangium woods decreased 3% and 0.5%, respectively after field test. There was a significant difference of MOEdyn value between before and after natural durability testings
Pangsor (Ficus callosa WILLD) and kecapi (Sandoricum kucape MERR) are usually planted in garden and rural forest. The objective of this study was to determine its specific gravity (SG), maximum crushing strength (σc//), longitudinal modulus elasticity (EL), and Poisson’s ratio (n).  The compression test  was conducted referring to  ASTM D143-94(2000) using UTM Instron 3369 which is equipped with two biaxial clip on extensometers.  The result showed that vertical and horizontal position of wood i Lusita WARDANI; Effendi Tri BAHTIAR; Ignasia Maria SULASTININGSIH; Atmawi DARWIS; Lina KARLINASARI; Naresworo NUGROHO; Surjono SURJOKUSUMO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

Pangsor (Ficus callosa WILLD) and kecapi (Sandoricum kucape MERR) are usually planted in garden and rural forest. The objective of this study was to determine its specific gravity (SG), maximum crushing strength (σc//), longitudinal modulus elasticity (EL), and Poisson’s ratio (n).  The compression test  was conducted referring to  ASTM D143-94(2000) using UTM Instron 3369 which is equipped with two biaxial clip on extensometers.  The result showed that vertical and horizontal position of wood in the trees statistically significant influenced on SG and σc//.  Horizontal position in Pangsor wood affected its EL, but the other position in both species were not significantly different.  There were poor correlations between SG with EL and σc//.   Poisson’s ratio value of both woods were in a range 0.0045 – 0.275 for longitudinal-radial direction (nLR), and 0.0151 – 0.1289 for longitudinal-tangensial direction (nLT).   Keywords :    Longitudinal Modulus of Elasticity, Maximum Crushing Strength, Poisson’s Ratio, Pangsor wood, Kecapi wood
The use of modern devices and human activity today have increased noise problem. The applicaton of acoustic panels in building construction could be as an alternative to overcome this problem. The purpose of this study was to investigate acoustical properties of sound absorption coefficient and sound transmission loss from wood wool or excelsior board. Three fast growing species, sengon (Paraserianthes falcataria), african wood (Maesopsis eminii), and mangium (Acacia mangium) lumbers were proces Lina KARLINASARI; Dede HERMAWAN; Akhiruddin MADDU; Bagus MARTIANTO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The use of modern devices and human activity today have increased noise problem. The applicaton of acoustic panels in building construction could be as an alternative to overcome this problem. The purpose of this study was to investigate acoustical properties of sound absorption coefficient and sound transmission loss from wood wool or excelsior board. Three fast growing species, sengon (Paraserianthes falcataria), african wood (Maesopsis eminii), and mangium (Acacia mangium) lumbers were processed to obtain wool particles. Two different categories of board density and types of resins were used in this study. Sound absorption coefficient was determined using the impedance tube method, while that for the determination of transmission loss based on the reverberation room method. The results showed that the board density of 0.8 g/cm3 had good sound absorption for low and high frequencies compared with board of 1.0 g/cm3. In the medium frequencies those boards reflected the sound. Wood wool cement bonded board was good in sound absorption for high frequency. In the range low to high frequencies, the boards with isocyanate adhesive were good in transmission loss value compared with cement bonded boards. Meanwhile, the boards with density of 1.0 g/cm3 possessed transmission loss value higher than board of 0.8 g/cm3.   Keywords:     acoustic panel, wood wool board, fast growing species, sound absorption, transmission loss
Co-Authors Adi Widyanto Adisti Permatasari Putri Hartoyo Adrin, Adrin Adzkia, Ulfa Agus Kholik Akhiruddin Maddu Akrom, Akrom Alfira Ramadhani Putri Aminuyati Anas Miftah Fauzi Andi Sukendro Anita Firmanti Arif Kurnia Wijayanto Arinana Arinana Aris Purwanto Asep Denih Ati Dwi Nurhayati Atmawi Darwis Atmawi DARWIS Augustin, Elfira Bagus MARTIANTO Baihaqi, Hans Budi Hadi Narendra Davinsy, Rynaldi Decsa Medika Hertanto Dede Hermawan Dede J Sudrajat Deded Sarip Nawawi Deviro, Sonya Okta Dikhi Firmansyah Diposani, Diva Putri Djiono Djiono Djoko Santoso Djoko Santoso Dodi Nandika Dwi Premadha Lestari Effendi Tri Bahtiar Erizal Eti Rohaeti Evalina Herawati Fengky Satria Yoresta Fitta Setiajiati Fredisa, Yoga Gunawan Santosa Gustian Rama Putra Gustian Rama Putra Hans Baihaqi Hari Wijayanto Hasanuddin Hasanuddin Hendra Kurniawan Heni Habibah I Nyoman Jaya Wistara I Wayan Darmawan Ignasia Maria Sulastiningsih Ina RITA Irmanida Batubara Iskandar Z Siregar ISKANDAR ZULKARNAEN SIREGAR Istie Rahayu Jeki, Jeki Kaswanto, Regan L. Leonard D D Liliefna Lestari, Dwi Premadha Lucia Dhiantika Witasari Lucia Dhiantika Witasari, Lucia Dhiantika Lusita WARDANI M. Farouq Iksan Machfud Machfud Madani, Hilmi Naufal mahdi mubarok Maryam Jamilah Maya Rahmawati Maya Rahmawati, Maya Merry Sabed Merry Sabed Mohammad Muslich Muhammad F Ikhsan Murodif, Atfal Naresworo Nugroho Nelly Anna Nelly Anna Nur Alam Nurul Asmarani Damayanti Rahardjo Putri, Lora Septrianda Rachmayanti, Yanti Reza Ro'isatul Umma Rifana, Haikal Zaky Rima Vera Ningsih Rita Rahmawati S.Pd. M Kes I Ketut Sudiana . Satriawan, Handi Siti Badriyah Rushayati So, Kristianto Wibison Solly Aryza Sri Mulatsih Sri Wilarso Budi Sucahyo Sadiyo Sulistyono Sulistyono Sulistyono Supriyanto Supriyanto Surjono Surjokusumo Surjono Surjokusumo Surjono Surjokusumo Surjono Suryokusumo Suryokusumo, Surjono Tarcisius Rio Mardikanto Tedi Yunanto Telnoni, Sipora Petronela TR. Mardikanto TR. Mardikanto, TR. Trisna PRIADI Trisni Untari Dewi Ulfa Adzkia Ulfa Adzkia Ulfah Juniarti Siregar Widiatmaka Yanti Rachmayanti Yudi Chadirin Yusup Amin