Judul: Risk Analysis on the Hairtail Supply Chain Landed at Palabuhanratu Archipelago Fishery Port, Sukabumi
Abstrak: Aktivitas rantai pasok ikan layur di Pelabuhan Perikanan Nusantara Palabuhanratu tidak terlepas dari risiko. Analisis risiko pada rantai pasok ikan layur diharapkan dapat meminimumkan risiko yang mungkin terjadi. Tujuan penelitian ini adalah mengidentifikasi struktur rantai pasok ikan layur, menganalisis risiko pada rantai pasok ikan layur, dan merumuskan strategi dalam upaya meminimumkan risiko rantai pasok ikan layur. Penelitian ini menggunakan metode accidental sampling. Hasil penelitian menunjukkan bahwa terdapat dua pola aliran distribusi ikan layur di Palabuhanratu, Akar penyebab masalah yang dominan adalah masalah penanganan, yang menimbulkan empat jenis risiko yaitu risiko di atas kapal, risiko di dermaga, risiko di perusahaan ekspor (CV. Duta), dan risiko di pasar lokal, dengan tingkat risiko yang berbeda-beda. Strategi dalam upaya meminimumkan risiko rantai pasok ikan layur di Palabuhanratu ialah mengembangkan perikanan layur berkelanjutan, mengembangkan teknologi penanganan ikan layur yang baik dan efisien, menerapkan standar dan pelatihan kualitas nelayan menyediakan fasilitas gudang penyimpanan dingin (cold storage), membuat forum kerjasama nelayan layur, meningkatkan manajemen usaha dan kerjasama antar kelompok nelayan., Activities associated with the hairtail supply chain at the Palabuhanratu Archipelago Fishery Port are not risk-free. Analyzing the hairtail supply chain's risk is intended to help reduce potential dangers. This study's objectives were to define the hairtail supply chain's organizational structure, assess its risks, and develop solutions to reduce that chain's risk. Accidental sampling is the method used in this study. The findings indicated two distinct distribution patterns for hairtail at Palabuhanratu. The main source of the issue was handling issues, which led to different forms of risk with varying degrees: risk on board, risk at the dock, risk in export enterprises (CV. Duta), and risk in the local market. A sustainable hairtail fishery is being developed at Palabuhanratu to reduce risk in the hairtail supply chain, as are effective hairtail handling techniques, putting in place quality requirements and training for fishermen who provide cold storage facilities for warehouses (cold storage), offering a venue for hairtail fishermen to collaborate and enhance business management and intergroup cooperation.
Keyword: ikan layur, Palabuhanratu, rantai pasok, risiko

Judul: The Fishing Season and Catch Feasibility of Hairtail fish (Trichiurus spp) in Palabuhanratu Fishing Port.
Abstrak: Ikan layur (Trichiurus spp) merupakan ikan demersal ekonomis penting dan salah satu komoditas ekspor yang potensial di PPN Palabuhanratu, Sukabumi. Ikan layur di Teluk Palabuhanatu dominan ditangkap menggunakan alat tangkap pancing layur. Informasi mengenai musim penangkapan dianggap sebagai faktor penting agar kegiatan penangkapan ikan efektif dan efisien. Penelitian ini betujuan untuk mengetahui pola musim penangkapan ikan layur, Catch Per Unit Effort, kelayakan hasil tangkapan, dan korelasi antara panjang total dengan panjang mulut dan lebar bukaan mulut ikan layur. Penelitian ini menggunakan metode penelitian deskriptif dengan jenis penelitian studi kasus. Metode analisis data yang digunakan yaitu metode rata-rata bergerak, analisis CPUE, metode hubungan panjang berat, dan analisis regresi linear. Hasil penelitian menunjukkan pola musim ikan layur terdapat pada bulan April, Juni, Agustus, September, Oktober, dan November berdasarkan nilai indeks musim penangkapan. Catch Per Unit Effort (CPUE) tertinggi dari pancing layur tahun 2015-2019 terjadi pada tahun 2019 dan nilai CPUE bulanan tertinggi pada bulan Oktober. Ukuran rata-rata ikan layur lebih besar dari kali pertama matang gonad dan masuk kedalam kategori layak tangkap. Korelasi antara panjang total dan panjang mulut serta lebar bukaan mulut dapat dijadikan acuan dalam menentukan panjang dan lebar mata pancing yang digunakan dalam alat tangkap pancing layur., Hairtail fish (Trichiurus spp) is an economically important demersal fish and one of the potential export commodities in PPN Palabuhanratu, Sukabumi. Mostly, hairtails in Palabuhanratu Bay are caught by hand line. The information of hairtails season is considered as an important factor to make fish activities are more effective and efficient. Objectives of this research are to understanding about the hairtail fishing season, catch per unit effort (CPUE), the feasibility of catches and correlation between total length with mouth length and mouth opening width of hairtail fish. This research was applied descriptive methods with case study. Data analysis was used moving average, CPUE, fish lenght and weight relations methods, and linear regression analysis. The results of this research showed the fishing season occured in April, June, August, September, October, and November. The highest Catch Per Unit Effort (CPUE) value of hand line from 2015-2019 was in 2019 and the highest monthly CPUE values was in October. The average size of haitail fish is larger than length of maturity and into the category of worth catching. correlation between total length with mouth length and mouth opening width of hairtail fish can be use as a reference in determining the length and width of the hook which is used in fishing gear.
Keyword: CPUE, Layak Tangkap, Musim Ikan, Pelabuhanratu,  Pancing Layur, CPUE, fish season, hand line, Palabuhanratu, worth catching

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