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Jurnal Penelitian Hasil Hutan
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Articles 4 Documents
Search results for , issue " Vol 10, No 4 (1992): Jurnal Penelitian Hasil Hutan" : 4 Documents clear
PENGARUH PENGERJAAN AKHIR TERHADAP STABILITAS DlMENSI KAYU Balfas, Jamal
Jurnal Penelitian Hasil Hutan Vol 10, No 4 (1992): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16582.82 KB) | DOI: 10.20886/jphh.1992.10.4.70-75

Abstract

This study  was designed   to determine the ability  of six  commercial exterior finishes  (2 clear coats  and 4 opaque  coats)  in  protecting wood from   dimensional changes.   Two wood species,  jabon (Anthocephalus cadamba Miq.) and mangium (Acacia mangium Willd.)  were used in this study.   Samples were  seasoned to air-dry condition  (moisture content of 15-17%)and  then  divided into groups on the basis of treatments and groin orientation (radial and tangential).  Application of each exterior finish  was undertaken according to procedures  suggested by the finish  manufacturer. The  effectiveness of treatments to dimensionally  stabilize wood was determined by measurements of wood swelling within 72-hours  immersion and calculation of a.:d-.swelling efficiency (ASE). Results of observations made to this stage showed that the effect  of finishing on wood dimensional stability varied according  to wood species, grain orientation and type of finish  coat. Finishing had a greater dimensional stabilizing effect  on Jabon than mangium.  Reduction of swelling due to finishing was greater in tangential compared to radial boards.  The use of clear coats significantly gave less protection on wood stability than that of opaque coats.  Anti-swelling efficiency of all treatments markedly decreased with increasing period of  immersion.
PENGAWASAN ADMINISTRATIF TATA USAHA KAYU DI TPK DAN LOGPOND HPH DENGAN PROGRAM KOMPUTER Dwiprabowo, Hariyatno
Jurnal Penelitian Hasil Hutan Vol 10, No 4 (1992): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (18634.431 KB) | DOI: 10.20886/jphh.1992.10.4.42 - 56

Abstract

Ministry of forestry requires the forest  concession holders  to fill in   logs  administrative forms  containing  log records  to supervise Iogs  production and circulation  in forest  concessions. However, large .amount  of logs produced  has prevented  the provincial  forest  service and forest  district from conducting through examination on the documents turned in by concessionaries.In this study, a computer program intended to help accomplishing the task is created and tried out documents that must be filled  in at logyard and logpond of concession. Using simulated  logs data the program run on PC could find  some deviation in the documents presented in terms of logs statistics. 
STUDI KASUS KERAPATAN JALAN HUTAN DI DUA PERUSAHAAN HUTAN DI JAMBI Dulsalam, Dulsalam
Jurnal Penelitian Hasil Hutan Vol 10, No 4 (1992): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7793.78 KB) | DOI: 10.20886/jphh.1992.10.4.57 - 60

Abstract

A study on the forest  road densities  was carried out at two logging companies in Jambi in 1990.  The objective is to find  aut the information of forest  road densifies realized by the companies. Data on area cut and road constructed  during the latest ten years felltng  blocks (from 1980/1981 to 1989/1990) were coilected. The results of the  investigation reveal that.:1.   Annually, the length of forest.roods built by A and B logging companies ranged from 2,000  to 13,000 m with an average of 6.050 m. and from  7, 600 to 19.800 m with an average of 12, 733 m. respectively.2.  Forest  road density  of each felling block at A and B logging companies ranged from 2. 10 to 20 m/ha with an average of 8. 54 m/ha, and from 3.45  to 22 m/ha with anaverage of 10.02 m/ha, respectively.3.  The level of forest road density average in the two logging  companies was still bellaw those level based on Segebaden Formula.4.  It is suggested that log potential,  rood construction cost and skidding cost be taken info consideration in constructing ofrest road.
KAJIAN KONSUMSI ENERGI BEBERAPA JENIS PRODUK INDUSTRI KAYU Nurhayati, Tjutju
Jurnal Penelitian Hasil Hutan Vol 10, No 4 (1992): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9594.148 KB) | DOI: 10.20886/jphh.1992.10.4.61-65

Abstract

The purpose of this study is to identify the energy consumption fram PLN (state electric company) electricity, diesel fuel and wood waste per m3 production of several products of wood indutries. The products included in the study are plywood, jointing board, matches and chopstick wood working, housing component, particleboard, picture frame and sawntimber.The study revealed that energy consumption from PLN electricity per m3 productions for plywood was 149. 51 kwh, jointing board was 152.29 kw, sawntimber ranged from 34.25 to 55.87 kwh and wood working was 178.11 kwh. The consumptions of diesel fuel for plywood was 50. 97 liters, and sawntimber was 14.23 liters. The biomass energy consumption per m3 productions for picture frame was 0.08 m3 which gave the lowest figure while the highest was for jointing board, namely 0. 604 m3. the share of biomass energy per m3 productions was 82% of the total energy consumption.

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