Judul: Characteristics of Working Area Aboard Mini Purse seiner at Larangan Fishing Port Tegal District
Abstrak: Kapal mini purse seine merupakan kapal yang dominan beroperasi di Kabupaten Tegal dan jumlahnya cenderung mengalami kenaikan. Kapal mini purse seine di PPP Larangan terdiri atas 44 kapal berukuran <10 GT dan 37 kapal berukuran ≥10 GT. Aktivitas kerja di kapal mini purse seine berukuran <10 GT membutuhkan 10 orang ABK dan 15-20 orang ABK untuk kapal berukuran ≥10 GT. Kecelakaan kerja di atas dek kapal memiliki tingkat kecelakaan yang tinggi dan sangat berkaitan dengan luasan area kerja di atas kapal. Tujuan penelitian yaitu mengidentifikasi aktivitas dan kebutuhan area kerja di atas kapal dengan mengidentifikasi luasan area kerja terpakai serta merumuskan kecukupan area kerja untuk aktivitas penangkapan. Teknik pengambilan sampel dilakukan dengan menggunakan teknik accidental sampling dengan jumlah sampel 2 untuk kapal <10 GT dan 3 untuk kapal ≥10 GT. Pengolahan data menggunakan perhitungan matematik. Analisis data yang digunakan adalah analisis deskriptif. Hasil penelitian menunjukkan working area pada kedua kelompok kapal mini purse seine pada saat kondisi setting masih jauh dari nilai yang cukup. Hal tersebut karena saat setting semua ABK berkumpul pada area yang sama yakni berada pada sisi kiri kapal, sehingga akan meningkatkan risiko kecelakaan kerja., Mini purse seiner are the dominant vessels were operating in Tegal Regency and the number of these vessels have been increasing. These vessels at Larangan fishing port consist of 44 vessels of <10 GT and 37 vessels of ≥10 GT. Working activities on vessels <10 GT requiring 10 crew members, while vessels of ≥10 GT needs 15-20 crew members. Work accidents above the deck of the vessels have a high accident rate and are closely related to the value of the working area. This research was intended with the aim of identifying activities and working area needs on the vessel by identifying the area of the used working area and formulating the adequacy of the work area for fishing activities.. The sampling technique using a accidental sampling method with total sample is two to vessels <10 GT and three to vessels ≥10 GT . The data processing using mathematical calculations. Data analysis used descriptive analysis metode. The results of this study showed that the value of working area of vessels when setting conditions still far from sufficient area value. This conditions occurred because all crew gather in the same area when setting steps was conducted. The area mentioned which is on the left side of the ship when lowering the fishing gear, this will certainly increase the risk of work accidents.
Keyword: Larangan fishing port, main dimention, purse seiner, vessel, working area

Judul: Perfomance of the Mini Purse Seine in the Morning and Evening at the Coastal Fishing Port Larangan Tegal Distrcit
Abstrak: Alat tangkap purse seine merupakan alat tangkap dominan yang ada di PPP Larangan. Waktu operasi penangkapan yang digunakan oleh nelayan terdiri atas dua yaitu penangkapan pagi dan penangkapan malam. Diantara dua metode penangkapan ini belum diketahui metode mana yang lebih efektif dalam melakukan kegiatan penangkapan, yang mana berpengaruh terhadap keberlanjutan perikanan sehingga diperlukan penelitian ini. Tujuan penelitian ini adalah mendeskripsikan perikanan purse seine, menghitung nilai produktivitas hasil tangkapan purse seine pada penangkapan pagi dan malam serta membandingkan tingkat efektivtas purse seine pada penangkapan pagi dan malam. Metode yang digunakan dalam penelitian ini yaitu metode observasi dan survei dengan analisis deskriptif, analisis produktivitas menurut Kepmen KP No.61 tahun 2014 dan analisis dekriptif efektivitas. Hasil penelitian menunjukkan bahwa kedua metode penangkapan purse seine menggunakan sistem one day fishing. Jenis hasil tangkapan utamanya yaitu ikan teri jawa, ikan kembung, ikan tembang, ikan peperek, cumi-cumi dan udang. Nilai produktivitas hasil tangkapan pagi yang sudah memenuhi standar hanya faktor produksi GT kapal dan trip penangkapan, sedangkan nilai produktivitas hasil tangkapan malam belum ada faktor produksi yang memenuhi standar. Penangkapan pagi lebih efektif dibandingkan dengan penangkapan malam dilihat dari nilai produktivitasnya., Purse seines are dominant fishing gear in Coastal Fishing Port Larangan. There are two methods that fishers use during fishing catch activity, in the morning and night. Between these two fishing methods, it is unknown which is more effective in carrying out fishing catch activities, which affects the sustainability of the fisheries, so this research is needed. This research aims to describe types and amounts of fish caught in purse seine, to compare productivity level and effectivities of fishing catch activity in morning and night. Data collection techniques included observation and survey with descriptive, productivity analysis by Kepmen KP No.61 of 2014 and descriptive analysis for effectivity. Fishing gear used is purse seine with one day trip. Fish caught using purse seine as the fishing gear were anchovy, mackerel, tembang, peperek, squid and shrimp. The morning catch’s productivity that has meet the standard is only the production factors GT ship and fishing trips, while the productivity value of evening catch has no production factors that meet the standard. Fishing catch activity in the morning was more effective than fishing catch activity at night compared to productivity level.
Keyword: catch, effectiveness, productivity, purse seine

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell