Judul: Sistem Peringatan Dini (Early Warning System) dalam Upaya Pencegahan Kebakaran Hutan (Studi Kasus di KPH Madiun Perum Perhutani Unit II Jawa Timur
Abstrak: Negative impact and losses from of forest fires lead to a need of fire preventionfrom earlier i.e. time within determination of fire prevention. Human factors are the main cause of the forest fires in Indonesia. Therefore determining fire fire prone areas could be done by using variables that contribute to forest fires, such as the accessibility towards the forest, forest distance between settlements, and potential conflict areas. Prone areas to forest fires could be determained by how society's perception on the existence of KPH Madiun and Early Warning System. This study is done by analyzing the data accessibility and the level of perception, to determine prone areas to forest fires. Analyze on forest prone areas then use to determine the risk of fires on the area; high level, moderate, or low level. The results showed that from 120 respondents in four villages the low level fire risk is found in Kaliabu and Kebonagung Villages. While, high and medium level is found Mojorayung and Sobrah Villages.
Keyword: early warning system, determination prone areas, forest fires

Judul: Sistem Peringatan Dini dalam Kegiatan Pencegahan Kebakaran Hutan di KPH Kuningan, Jawa Barat
Abstrak: Kebakaran hutan memberikan dampak negatif yang cukup besar oleh karena itu diperlukan suatu tindakan pencegahan sejak awal. Salah satu kegiatan pencegahannya yaitu menentukan daerah rawan kebakaran hutan. Tingkat persepsi masyarakat berdasarkan penelitian di beberapa desa di KPH Kuningan terhadap sistem peringatan dini tergolong tinggi untuk Desa Cihanjaro, tergolong sedang untuk Desa Simpayjaya dan tergolong rendah untuk Desa Kawungsari. Menurut aksesbilitasnya, Desa Kawungsari memiliki akses paling tinggi dengan hutan. Ada beberapa variabel penyebab kebakaran hutan antara lain : jarak antara pemukiman penduduk dengan hutan, aksesbilitas menuju hutan, dan potensi daerah terjadi konflik. Penentuan daerah rawan kebakaran hutan dapat dilihat melalui tingkat persepsi masyarakat terhadap keberadaan KPH Kuningan dan sistem peringatan dini dalam kegiatan pencegahan kebakaran hutan.
Keyword: Forest fires, Early warning system, Determination prone areas, Silviculture, Warning system, Forset fire preventive action

Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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