Judul: Flood Control at Bekasi City Using Fuzzy Approach
Abstrak: Salah satu permasalahan lingkungan di Kota Bekasi adalah banjir. Banjir di Kota Bekasi hampir terjadi setiap tahun. Salah satu aspek yang ada dalam banjir adalah menentukan debit banjir rencana. Model yang dapat digunakan untuk menentukan debit banjir rencana ada banyak dan beragam tergantung lokasi yang diteliti. Tujuan studi ini adalah menelusuri model-model penentuan debit banjir rencana. Tujuan lainnya adalah menggunakan teknik pengambilan keputusan berdasarkan pengetahuan para pakar untuk menentukan model yang tepat untuk dipakai. Penentuan debit banjir rencana dimulai dari Sungai Cileungsi di Bogor yang merupakan titik elevasi tertinggi hingga Sungai Bekasi yang berada di tengah Kota Bekasi. Penentuan debit banjir rencana menggunakan 3 model, yaitu Model Rasional, Model Der Weduwen, dan Model Hidrologi DAS. Hasilnya secara berurutan yaitu 994 m3/dtk, 846 m3/dtk, dan 1.050 m3/dtk. Pertimbangan para pakar yang didapat dari wawancara diolah dengan metode fuzzy inference system di mana pertimbangan tersebut diolah menurut akurasi dan kepraktisan pengunaannya di Kota Bekasi. Hasilnya berdasarkan kesesuaian paling tinggi hingga terendah secara berurutan, yaitu Model Rasional, Model Hidrologi DAS, dan Model Der Weduwen.
Keyword: banjir, debit banjir rencana, fuzzy inference system, pemilihan model, Sungai Bekasi

Judul: Perencanaan Lanskap Berbasis Mitigasi Banjir di Kecamatan Jatiasih Kota Bekasi
Abstrak: Banjir merupakan suatu fenomena alam yang sering terjadi di Indonesia. Bencana ini terjadi akibat kelebihan air yang tidak tertampung lagi oleh jaringan drainase sehingga membuat genangan yang merugikan. Salah satu daerah yang sering terkena banjir adalah Kecamatan Jatiasih. Oleh karena itu diperlukan perencanaan lanskap berbasis mitigasi banjir di Kecamatan Jatiasih, Kota Bekasi. Tujuan dari penelitian ini adalah meminimalisir dampak yang disebabkan oleh banjir. Metode yang dilakukan pada penelitian ini ada 5 tahap, yaitu tahap persiapan, inventarisasi, analisis, sintesis, dan perencanaan. Analisis yang dilakukan adalah analisis legalitas, kerawanan bencana banjir, kerentanan terhadap bencana banjir, dan risiko bencana banjir. Hasil analisis menyatakan bahwa Kecamatan Jatiasih didominasi kerawanan sedang sebesar 38,10%, kerentanan sangat tinggi sebesar 59,44%, dan berisiko tinggi terhadap bencana banjir sebesar 40,48%. Berdasarkan hasil analisis tersebut selanjutnya dikembangkan konsep perencanaan dengan konsep dasar mitigasi bencana banjir secara alami. Konsep ini kemudian dikembangkan menjadi rencana lanskap. Rencana lanskap disusun berdasarkan rencana tata ruang, aktivitas, evakuasi, fasilitas, sirkulasi, dan vegetasi., Flood is a natural phenomenon that occurs frequently in Indonesia. This disaster occurred as a result of excess water that was no longer accommodated by the drainage network, thus creating an adverse puddle. One area that is often affected by annual floods is in Jatiasih District. Therefore, a landscape planning based on flood mitigation is needed in Jatiasih District, Bekasi City. The purpose of this research is to minimize the impact caused by flooding. The method used in this study consists of 5 phases starting from preparation, inventory, analysis, synthesis, and landscape planning. The analysis carried out is sensitivity analysis, analysis of vulnerability, and flood risk analysis. The results of the analysis stated that Jatiasih District is dominated by medium sensitivity of 38.10%, very high vulnerability of 59.44%, and high risk of flood disaster of 40.48%. Based on the results of the analysis then developed a planning concept with the basic concept of natural flood disaster mitigation. This concept was later developed into a landscape plan. Landscape plans are prepared based on spatial plans, activities, evacuation, facilities, circulation, and vegetation.
Keyword: flood, mitigation, landscape planning

Judul: Characteristic of chili drying (Capsicum annum L.) as a natural dyeing cosmetic
Abstrak: Chilli (Capsicum sp.) contains carotenoids, which are a group of natural pigments consist of red, orange or yellow color. Carotenoids can be dissolved in lipid so that they can be applied to oil-based cosmetic ingredients. Therefore, chilli is potential to be developed as cosmetic colorants. However, pungency of red chili needs to be removed because it is irritating and it provides stinging sensation to skin. Red chilli was investigated as a potent material for a cosmetic colourant in this research because it has a nice uniform red color and has a pungency level less than cayenne pepper. The purpose of this research was to investigate the influence of blanching on drying characteristics of red chilli using a tray dryer, determine the proper time of chili blanching in sodium bisulfite solution, examine color changes stability of red chili powder as a cosmetic dye, and analyze the effect of oleoresin extraction on color and pungency level of red chili powder. The results showed that blanching could affect the drying characteristics. Blanching the chilli for 9 minutes prior drying could speed up the drying rate of chilli and thus the drying time, therefore, the chilli achieved the desired moisture content fast. Sodium bisulfite solution of 0.2%, used as the blanching media, could maintain the color well. However, longer time of blanching might cause several pigments soluble in the blanching media. Blanching the chilli for 9 minutes was able to maintain red color after the stability tested and after extraction of oleoresin. Therefore, blanching red chilli in a solution of 0.2% sodium bisulfite for 9 minutes prior drying is concluded as the best treatment to retain the color of red chilli powder
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