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All Journal Efisiensi : Kajian Ilmu Administrasi Jurnal Riset Industri Hasil Hutan Jurnal Riset Teknologi Industri

Dwi Harsono

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Author-ID : 434817

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 9 Documents Claim Missing Document

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SIFAT FISIS DAN MEKANIS BATANG KELAPA (Cocos nucifera L.) DENGAN PROSES PEMADATAN Dwi Harsono
Jurnal Riset Industri Hasil Hutan Vol 7, No 2 (2015)
Publisher : Kementerian Perindustrian

This study aims to determine the physical and mechanical properties of coconut trunks based on 4 factors of acacia bark extract concentrations (0%, 10%, 15%, 20%) and the percentage of reduction in thickness (0%, 30%, 40%, 50%). The results showed that the average value of coconut wood moisture content is not compacted relatively higher compare to the average levels of condensed water. The average value of the coconut wood density was not relatively lower compared to the average density of the compacted. The average value of MOR and MOE coconut wood once compacted experience increased with coconut wood are not compressed. But all the values MOR coconut wood on this study is classified into strong wood class V. From the results of this study concluded that the process of compacting the coconut wood and soaking treatment using the extract of acacia bark may increase the value of physical and mechanical properties of coconut wood. Coconut wood compaction technology can be utilized as a substitute for wood raw materials but can not be used to hold the load.Keywords : coconut wood, physical properties, mechanical properties

The Characteristics of Bamboo Charcoal Derived from Bambusa vulgaris Schrad and Arundinaria gigantea (Walter) Muhl Growing in Different Types of Habitats Ratri Yuli Lestari, M.Env.; Dwi Harsono; Nazarni Rahmi
Jurnal Riset Industri Hasil Hutan Vol 10, No 1 (2018)
Publisher : Kementerian Perindustrian

Altitude is one of the factors that affect the growth of bamboo. Bamboo species used in this study was Bambusa vulgaris and Arundinaria gigantea. The objectives of this study are to investigate the effect of altitude to the characteristics of bamboo charcoal harvested from three different altitudes (Lumpangi, Banjarbaru/Martapura, Marabahan). Parameters tested in this study were moisture content, ash content, volatile matter, fixed carbon and calorific value. The result showed that altitute significantly affected the characteristics of bamboo charcoal. Bamboo charcoal from Banjarbaru/Martapura had the best characteristics than the charcoal produced from other locations. The moisture content, ash content, volatile matter, fixed carbon and calorific value of B. vulgaris were 0.77 %; 3.49 %; 8.63 %; 87.11 % and 7,331.05 kal/g. The moisture content, ash content, volatile matter, fixed carbon and calorific value of A. gigantea were 0.19 %; 12.46 %; 4.48 %; 87.11 % and 6,640.69 kal/g, respectively.

SIFAT FISIS DAN MEKANIS PURUN BAJANG SEBAGAI SUBSTITUSI PURUN DANAU DAN PURUN TIKUS Dwi Harsono
Jurnal Riset Industri Hasil Hutan Vol 5, No 2 (2013)
Publisher : Kementerian Perindustrian

The problem faced by purun craftsmen is the reduced of purun raw material which commonly used such as purun danau and purun tikus. Hence it tends to utilized purun bajang which lesser known but potential used as a raw material purun craft. The research aims to obtain the information on the physical and mechanical properties of purun bajang compared with purun tikus and purun danau as substituted of purun tikus and purun danau.The research conclude that purun bajang’s performance is almost same as another commercial purun in terms colour and impression touch, but purun bajang relative slippery than purun tikus and purun danu. Purun bajang can be used as material substitution of commercialized purun tikus and purun danau, but it is noteworthy because of the tensile strength which it have very low tensile strength. Purun bajang can be used as woven material after drying process without any pulverization because it cause increasingly fragile tensile strength.Keywords: purun, physical properties, mechanical properties

SIFAT FISIS DAN MEKANIS BATANG KELAPA (Cocos nucifera L.) DARI KALIMANTAN SELATAN Dwi Harsono
Jurnal Riset Industri Hasil Hutan Vol 3, No 1 (2011)
Publisher : Kementerian Perindustrian

The aim to of this research is to know characters physical and mechanical characteristics of coconut wood based on 3 growth places (highland, coast and swamps) and the position of the coconut wood (tip, middle, and base). Besides that, to support the growth and the spreading of wood processing industry in South Borneo. They are two treatment factors that are used, the variation of growth places (highland, coast and swamps) and the variation of wood position (tip, middle, and base). Every combination of the treatments are repeated three times. The best Physical and mechanical characteristics of coconut wood is from highland and in the base part of the wood. The coconut wood can be used for structural wood.Keywords: coconut wood, physical characteristics, mechanic characteristics

PEMANFAATAN BATANG KELAPA DAN KAYU KARET SEBAGAI BAHAN BAKU GLULAM A Sulaiman; Dwi Harsono
Jurnal Riset Industri Hasil Hutan Vol 4, No 2 (2012)
Publisher : Kementerian Perindustrian

The research of coconut and rubber wood utilization as raw material for glulam has been done. This research aims to optimize the function of rubber wood and palm stem by the incorporation of technology and adhesion to wood products in the form of building construction materials. In addition, knowing the physical and mechanical properties of glulam based on three variations of the type of timber (rubber wood, coconut, coconut stem wood + rubber), and various number of layers (5 layers, 6 layers, and 7 layers). Each combination treatment was repeated three times. The best mechanical physical properties of glulam for type of rubber wood, with 7 layers. Keywords : glulam, coconut wood, rubber wood, characters physical, characters mechanic

SIFAT FISIS DAN MEKANIS ANYAMAN BAMBAN (Donax canniformis) DENGAN BAHAN STABILISATOR PEG 1000 DAN TANIN KULIT AKASIA Dwi Harsono
Jurnal Riset Industri Hasil Hutan Vol 7, No 2 (2015)
Publisher : Kementerian Perindustrian

Bamban (Donax canniformis) is one of the biological resources that grow in the swampy areas and has been used by the community as a raw material in the form of woven handicrafts. Bamban bark that used as raw material woven texture is hard and the surface was very slippery so hard to make. This study was conducted to determine the nature of the characteristics of stem Bamban and determine the effectiveness of the stabilizers PEG 1000 and tannin from extract acacia bark in improving the quality of physical and mechanical properties strands of Bamban. Treatments include immersion with PEG 1000 and acacia bark tannins for 2 hours. Results of the study the effectiveness of treatments of soaking the material stabilizers PEG 1000 and tannins from extract acacia bark all of them can improve the physical and mechanical properties of raw material of Bamban woven handicraft and make it easier for artisans in the process of weaving due to the treated material can make more limp strands of Bamban and not to stiff, in addition to making the product brighter and more attractive.Keywords : bamban, physical properties , mechanical properties

Co-Authors A Sulaiman Desi mustika Amaliah Fitri Yuliati Hamlan Ihsan Miyono Miyono Nazarni Rahmi Ratri Yuli Lestari, M.Env. Sri Hidayati

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