Judul: Perencanaan Kawasan letusan Gunung Banda Api Berbasis Mitigasi di Kepulauan Banda, Provinsi Maluku
Abstrak: Indonesia merupakan negara kepulauan yang berada di ring of fire hal tersebut mebuat Indonesia rawan terhadap bencana gunung apa gempa bumi dan tsunami. Gunung Banda Api adalah salah satu gunung api Indonesia yang terletak di Kepulauan Banda. Kepulauaan terdiri dari pulau-pulau vulkanik yang saat ini menjadi destinasi wisata dalam tingkatan status vulkanologi dan berada dalam kawasan rawan bencana. Hal itu membuat Kepulauan Banda menjadi kawasan rawan bencana sehingga dibutuhkan perencanaan tata ruang. Tujuan penelitian ini adalah melakukan identifikasi, klasifikasi dan menyusun tata ruang berbasis mitigasi. Perencanaan tata ruang menggunakan metode analisis data spasial yang terkait dengan letusan gunung dan gempa bumi yang berada di Kepulauan Banda. Metode tersebut menghasilkan data spasial berupa tingkat kerentanan yang menjadi dasar pembuatan blockplan. Konsep dasar perencanaan mitigasi Kepulauan Banda memiliki prioritas utama untuk memperkecil tingkat resiko bencana. Hasil dari penelitian ini adalah jalur evakuasi pada saat terjadinya bencana serta dua model ruang evakuasi yaitu zona evakuasi meso dan zona evakuasi makro
Keyword: Gunung Banda Api, sistem mitigasi, perencanaan lanskap

Judul: Perencanaan Tata Ruang Kawasan Rawan Bencana Letusan Gunung Tangkuban Perahu Berbasis Mitigasi di Lembang Jawa Barat
Abstrak: Indonesia has many volcanoes in every island and known as the ring of fire area. Tangkuban Perahu is still an active volcano located in the Lembang City, Bandung Barat District. According to the eruption history of Tangkuban Perahu, the eruption could reach 5 km widely to whole of Lembang City. It makes Lembang city into a disaster-prone areas and that is why It needs an arrangement of urban space-based disaster. The objective of this research is to identify, classify and arrange Lembang districtbase of mitigation. The arrangement was done by analysis of spatial data with spatial that will result a vulnerability level for each areas. Then define a blockplan by modeling spatial.With mitigation as a base concept, an arrangement planning of urban space has highly priority to to minimize disaster risk. The result of this research is evacuation space model which are micro evacuation space, meso evacuation space, and macro evacuation space
Keyword: Bogor Agricultural University (IPB), the City Lembang, urban spatial arrangement, Tangkuban Perahu, volcanic eruptions, Disaster mitigation

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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