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I Wayan Darmawan
Departemen Teknologi Hasil Hutan, Fakultas Kehutanan, Institut Pertanian Bogor, Kampus IPB Dramaga, Bogor 16680
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Journal : Prosiding University Research Colloquium

 1 
Research and Innovations in Products Quality Improvement of Short Rotation Woods for Industry 4.0 Wayan Darmawan
Prosiding University Research Colloquium Proceeding of The 8th University Research Colloquium 2018: Bidang Sosial Ekonomi dan Psikologi
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Juvenile portion of tree stem surrounding the pith is characterized by a progressive change in cell features and wood properties (Panshin and de Zeeuw 1980). In comparison with mature wood, juvenile wood is made of smaller and shorter fibers with thinner walls and larger microfibril angles, lower density, and lower strength properties (Clark et al. 2006; Gryc et al. 2011; Koubaa et al. 2005: Adamopoulus et al. 2007; Evans et al. 2000). It is well known that characteristics of juvenile wood contribute to undesirable solid wood properties. Juvenile wood is not substandard for products such as newsprint and quality printing paper (Zobel 1984). However, it may cause serious problems for quality products, especially veneer or solid wood products. This is due to its low bending strength and dimensional instability upon drying. Juvenile wood of black locust had on average significantly lower static bending strength (MOR, and MOE), dynamic strength, and toughness strength than the mature wood (Adamopoulus et al. 2007). One of the most serious problems in drying and utilization of young plantation grown conifers was warp in the form of twist, crook and bow (Kliger 2001; Johansson and Kliger 2002). One possible means to reduce the negative impact of juvenile wood is to select for an earlier transition age from juvenile to mature wood.
Manfaat Fungsional Produk Cocodus Olahan Limbah Handicraft sebagai Media Tanam Dumasari, D; Darmawan, Wayan; Budiningsih, Sulistyani
Prosiding University Research Colloquium Proceeding of The 8th University Research Colloquium 2018: Bidang Sosial Ekonomi dan Psikologi
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Pengembangan diversifikasi produk penting bagi pemberdayan pengrajin handicraft. Tujuan kegiatan ini ialah meningkatkan pengetahuan dan ketrampilan pengrajin handicraft berbahan limbah kelapa tentang kemanfaatan fungsional cocodust berhara sebagai media tanam. Mitra yang ditetapkan sebagai khalayak sasaran strategis ialah Kelompok Pengrajin Manunggal Karya di Purbalingga Wetan, Kabupaten Purbalingga, Jawa Tengah. Metode pendekatan yang dimanfaatkan mencakup penyuluhan, diskusi kelompok, pelatihan dan evaluasi. Pada akhir kegiatan terjadi peningkatan pengetahuan dan ketrampilan anggota mitra sehubungan dengan kemanfaatan fungsional cocodust berhara. Anggota mitra makin mengetahui dan trampil mengidentifikasi manfaat fungsional cocodust berhara sebagai media tanam alternatif bagi sayuran berumur pendek.
Research and Innovations in Products Quality Improvement of Short Rotation Woods for Industry 4.0 Darmawan, Wayan
Prosiding University Research Colloquium Proceeding of The 8th University Research Colloquium 2018: Bidang Sosial Ekonomi dan Psikologi
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Juvenile portion of tree stem surrounding the pith is characterized by a progressive change in cell features and wood properties (Panshin and de Zeeuw 1980). In comparison with mature wood, juvenile wood is made of smaller and shorter fibers with thinner walls and larger microfibril angles, lower density, and lower strength properties (Clark et al. 2006; Gryc et al. 2011; Koubaa et al. 2005: Adamopoulus et al. 2007; Evans et al. 2000). It is well known that characteristics of juvenile wood contribute to undesirable solid wood properties. Juvenile wood is not substandard for products such as newsprint and quality printing paper (Zobel 1984). However, it may cause serious problems for quality products, especially veneer or solid wood products. This is due to its low bending strength and dimensional instability upon drying. Juvenile wood of black locust had on average significantly lower static bending strength (MOR, and MOE), dynamic strength, and toughness strength than the mature wood (Adamopoulus et al. 2007). One of the most serious problems in drying and utilization of young plantation grown conifers was warp in the form of twist, crook and bow (Kliger 2001; Johansson and Kliger 2002). One possible means to reduce the negative impact of juvenile wood is to select for an earlier transition age from juvenile to mature wood.
Co-Authors A.A. Ketut Agung Cahyawan W Abigael Kabe Adi Santoso ADI SANTOSO Adi Santoso Alfira Ramadhani Putri Andi T. Lestari Bambang Hermansah Bayu Iswana Deded Sarip Nawawi Devi Armilasari Dodi Nandika Dumasari Dumasari, Dumasari Dumasari, D Efrida Basri Fauzan Fahrussiam Gérardin, Philippe Hiroshi Usuki I Kentut Pandit I.M. Sulastiningsih Ignasia Maria Sulastiningsih Imam Santosa Imam Wahyudi Indrawan, Imam Wahyudi Irsan ALIPRAJA Ismail, Rohmat Istie Rahayu Itan Iskova PURBA Jamaludin Malik Jamaludin Malik Khairunissa, Dhiya Laksono, Gilang Dwi Lina Karlinasari Lusita WARDANI Lusita WARDANI Lya Rochmawati Martha, Resa Masahiro Yoshinobu Muh. Yusram Massijaya Muh. Yusram Massijaya Muh. Yusram Massijaya Muh. Yusram Massijaya Muhamad Yusram Massijaya Muhammad Y Massijaya Naoki Okano Naresworo Nugroho Nur Alam Prihatini, Esti Remy Marchal Rita Kartika Sari Rumanintya Lisaria Putri Sabarna, Aqila Alya Nabila Sarah Augustina Sarah Augustina Shuhou Koseki Silmi Mariya Sofiaturizkiyah, Nurul Sulistyani Budiningsih Surdiding Ruhendi Surdiding RUHENDI Surdiding Ruhendi Surdiding Ruhendi Taiyo Okada Tobing, Gabriel Ulfa Adzkia Wahyuningtyas, Irma Widyana LUZA Yoichi Kojima Yusuf Sudo Hadi Yusup Amin