Judul: Aplikasi sistem pakar untuk pengembangan ekspor kayu lapis Indonesia
Abstrak: Ekspor memegang peranan penting bagi pengembangan ekonomi nasional. por Sasaran Repelita VI untuk pertumbuhan eksnon migas adalah sebesar 16.5 persen. Salah satu upaya dalam memenuhi target tersebut adalah melalui pengembangan ekspor kayu olahan, dimana salah satu komoditas favorit kayu olahan untuk ekspor adalah kayu lapis. Penelitian ini bertujuan untuk mengidentifikasi variabel-variabel yang berperan dalam pengembangan pemasaran ekspor kayu lapis Indonesia, serta menganalisa dan memformulasikan secara kualitatif potensi dan permasalahan pengembangan eskpor kayu lapis dalam bentuk sistem pakar yang fleksibel penggunaannya. Model ESPLYED (Expert System for Plywood Export Development) direkayasa dengan menggunakan alat pengembang Personal Consultant Plus, yang bekerja dalam bahasa LISP (Language Intelligent System Personal). Metode representasi model adalah metode frame, metode representasi logika dan metode kaidah produksi. Penanganan untuk kondisi yang bersifat pasti dilakukan dengan kaidah modus ponens dan modus tollens, dan penanganan untuk kondisi yang mengandung ketidakpastian dilakukan dengan penambahan nilai faktor kepastian (certainty factor). Metode pengendalian model berdasarkan penggabungan metode backward chaining dan forward chaining, dan metode penelusuran kaidah dila- kukan berdasarkan metode tree search with pruning. ...
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Judul: Analisis Daya Saing dan Faktor-Faktor yang Memengaruhi Ekspor Kayu Lapis Indonesia
Abstrak: Indonesia memiliki sumber daya alam yang melimpah dengan ketersediaan kayu hasil hutan dari lahan yang luas, sehingga sangat berpotensi untuk mengembangkan ekspor hasil hutan. Kayu lapis merupakan salah satu komoditas ekspor yang memiliki potensi untuk dikembangkan. Penelitian ini bertujuan untuk menganalisis daya saing dan faktor-faktor yang mempengaruhi ekspor kayu lapis Indonesia ke 7 negara tujuan utama selama periode 2013-2020. Metode yang digunakan adalah RCA, EPD, X-Model serta regresi data panel. Hasil penelitian menunjukkan bahwa kayu lapis Indonesia memiliki daya saing yang kuat di 7 negara tujuan, dan memiliki potensi pengembangan pasar ekspor kayu lapis yang relatif optimis dan potensial. Hasil estimasi dari pendekatan regresi data panel menunjukkan GDP riil negara tujuan, nilai tukar, harga ekspor, jarak ekonomi, dan pertumbuhan populasi memiliki pengaruh yang signifikan terhadap ekspor kayu lapis Indonesia., Indonesia has abundant natural resources with the availability of wood from forest products from a large area, so it has the potential to develop forest product exports. Plywood is one of the export commodities that has the potential to be developed. This study aims to analyse the competitiveness and factors that influence Indonesia’s plywood exports to 7 main destination countries during the period 2013-2020. The methods used are RCA, EPD, X-Model and panel data regression. The results show that Indonesian plywood has strong competitiveness in 7 destination countries, and has the potential to develop a relatively optimistic and potential export market. The estimation results from the panel data regression approach show that the real GDP of the destination countries, exchange rate, export prices, economic distance, and population growth has a significant influence on Indonesia’s plywood exports.
Keyword: EPD, panel data, plywood, RCA, X-Model

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