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All Journal Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul)
Krisdianto Krisdianto
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Perubahan Struktur Anatomi Kayu akibat Pemanasan dengan Microwave Wood Anatomical Changes due to Microwave Heating Krisdianto Krisdianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 2 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.393 KB) | DOI: 10.51850/jitkt.v2i2.306

Abstract

Microwave technology has been developed for wood material in the last few decades. The aim of micro waving wood material is to solve the problem of wood processing, such as drying time and permeability. During microwave radiation, the wood structure has been changed microscopically as well as macroscopically. Microscopic modification includes ruptured of ray cell parenchyma tissue, breakage of pit aspiration and open tylosis blockade in vessels. While, macroscopic modification includes checks radially
The Effect of Microwave Heating on Permeability of Bamboo Krisdianto Krisdianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 6, No 2 (2008): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.184 KB) | DOI: 10.51850/jitkt.v6i2.242

Abstract

Bamboos are plants of enormous importance to the rural people in several regions of Asia. In spite of its many excellent properties; bamboo is liable to biological deterioration. Therefore, a preservative treatment is regarded as necessary. Many methods have been developed to increase the durability of bamboo. However, most of the methods take a long time and in most cases the vessels do not take enough liquid to preserve the surrounding fibres and parenchyma. This study is aimed to observe the effect of microwave heating on bamboo permeability. The study evaluates the moisture content reduction, resin uptake and saturation as well as resin distribution.The result shows that microwave heating is able to reduce the moisture content reduction of both round and split bamboo up to 93% in about 3 minutes. The microwave heating increases the resin uptake of microwave treated bamboo up to 3 ~ 5 times. The resin saturation also improves to about 2.5 ~ 3 times (before curing) and about 4 ~ 5 times (after curing). Resin penetrates mostly through radial checks that occur during drying. Microwave heated samples shows more blackened area in ground parenchyma tissue than non-treated samples, which indicates that the resin was distributed more evenly. It is concluded that microwave heating leads to improve of bamboo permeability. It is recommended that further research be carried out to establish a microwave regime for optimal bamboo permeability.
Struktur Anatomi Tiga Jenis Batang Rotan Anatomical Properties of Three Rattans Culm Krisdianto Krisdianto; Jasni Jasni
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 3, No 2 (2005): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (824.973 KB) | DOI: 10.51850/jitkt.v3i2.288

Abstract

 Rattan is one of the monocotyl species, which is economically important. Rattan culm is used for furniture, souvenir and housewares. Indonesian rattan varies accordingly, but only about 30% of them have been developed. This paper describes anatomical structure of three rattan species to get information about its utilization. Three rattan species namely Balubuk (Calamus burchianus Becc.), Lilin (Calamus javensis Bl.) and Tretes (Calamus heteroideus Bl.) were used as samples. Macroscopically, anatomical structure was observed on massive rattan culm, while microscopically was observed from microtome-sectioned samples. Fibre dimension was observed from macerated samples. All anatomical quantities were compared to those of Manau rattan, since its utilization has been known. The metaxylem diameter of those three rattans was bigger than that of Manau rattan, so that those rattans were less durable than Manau. Fibre of rattan studied was shorter and thinner than that of Manau, as a result their strength were lower than that of Manau rattan. As their strength were less than Manau, the utilization of these three species was not recommended to work on direct forces
Seni Musik Tifa Sebagai Media Pembelajaran Sejarah Afrika-Papua Di Rusunawa Banjarbaru Tanto Budi Susilo; Krisdianto Krisdianto; Tetti Novalina Manik; Thresye Thresye
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 3, No 3 (2024)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ilung.v3i3.11943

Abstract

Tulisan ini, bagian program pengabdian masyarakat; dengan judul “Podcast: Seni sebagai media pembelajaran sains” tiga tahun lalu. Berikut ini ulasannya; tifa atau Jimbe (bahasa Mali, djembe: kumpul) merupakan instrumen musik modern dan/atau kontemporer yang berasal dari negara Jamaica, Amerika Tengah. Instrumen ini mengandung memori dan simbolisasi penindasan bangsa Mali-Afrika Barat, dihinakan, dihewankan dan diperbudak oleh bangsa Spanyol, di benua Amerika, era kolonialisasi (abad 15-17), sebelum pindah kuasa ke Inggris (abad 17-19). Adalah dia, manusia Afrika Barat menyuarakan dan mengekspresikan sedihnya di atas drum, bedug atau djembe/kendang. Era milinialisasi, Si Mali, Si Jimbe hadir kembali untuk menghibur, untuk menuntun perasaan bangsa manusia dengan nada tersendiri dan unik. Terdapat tiga nada pada jimbe; nada tinggi ada di bagian tepi jimbe, sedang ada di bagian agak tengah jimbe dan rendah ada di bagian tengah jimbe. Patitur jimbe terletak pada cara drummer memainkan dengan kecepatan dan variatif. Metode Structural Equation Modelling (SEM) digunakan untuk mengetahui persepsi mahasiswa terhadap performance lagu Tifa Afrika, sebagai berikut; sangat mengerti (14,8%), mengerti (56,5%), kurang mengerti (28,2%) dan tidak mengerti (0,5%). Diharapkan seni musik dapat digunakan sebagai media untuk pembelajaran sain sosial dan sain natural.
Co-Authors Jasni Jasni Susilo, Tanto Budi Tetti Novalina Manik Thresye Thresye