Judul: Studi peramalan ekspor furniture Indonesia
Abstrak: The world demand for wood working product that increases continually and wood processing technology that is getling more advanced are a good condition promote really efficient wood utiliition. Currently, one of wood industries substansial that becomes export back bone contributing foreign exchange is furniture. Government predicted that the gowth of furniture product export and handycraft in 2007 were 10-15%. Opportunity to increase the export is still high, but attention to design, quality and supply consistency need to be talen in to account. Therefore, based on information mentioned forecasting study of furniture export from Indonesia needs to be done to produce a model that can be used to estimate fimiture export dynamics. Purposes of this study are (1) to forecast or estimate dynamics of furniture export from Indonesia based on the model produced, (2) to investigate the factors influencing furniture export.
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Judul: Export Performance and Estimation Export Demand Function of Indonesian Wooden Furnitures
Abstrak: Nilai ekspor wooden furnitures Indonesia pada tahun 2007 adalah USD 1.5 miliar dan menurun menjadi USD 1.1 miliar pada tahun 2018, suatu penurunan sebesar 31.9% atau 3.4% per tahun, di sisi lain pada periode yang sama pertumbuhan ekspor wooden furnitures dunia meningkat sebesar 5.8% atau 0.5% per tahun. Oleh karena itu penelitian ini bertujuan menganalisis kinerja ekspor wooden furnitures Indonesia dan mengestimasi fungsi permintaan ekspor wooden furnitures Indonesia oleh dunia agar mengetahui pertumbuhan ekspor dalam rangka mengembangkan industri wooden furnitures Indonesia di masa depan. Kinerja ekspor dianalisis menggunakan Constant Market Share (CMS) untuk mengukur dinamika pertumbuhan ekspor wooden furnitures Indonesia. Estimasi fungsi permintaan ekspor produk wooden furnitures dianalisis dengan regresi panel data. Tiga macam pendekatan yang digunakan dalam mengestimasi model dalam panel data yaitu model pooled (Pooled Least Square), model efek tetap (Fixed Effect), dan model efek acak (Random Effect). Hasil penelitian menunjukkan pertumbuhan ekspor produk wooden furnitures Indonesia pada periode 2007-2018 menurun dengan tajam terutama disebabkan oleh menurunnya faktor daya saing, diikuti oleh faktor komposisi komoditas dan faktor distribusi pasar. Efek positif pertumbuhan standar yang merefleksikan peningkatan ekspor dunia tidak cukup besar untuk mengatasi penurunan ekspor tersebut. Fungsi permintaan ekspor produk wooden furnitures Indonesia dapat diestimasi menggunakan model efek tetap dengan nilai elastisitas harga relatif, elastisitas pendapatan, dan adjusted R2 berturut-turut -0.45, 0.8, dan 0.99. Variasi permintaan ekspor wooden furnitures Indonesia dapat dijelaskan dengan sangat baik. Kata kunci: CMS, fungsi permintaan ekspor, kinerja ekspor, regresi panel data, The export value of Indonesian wooden furnitures in 2007 was USD 1.5 billion and decreased to USD 1.1 billion in 2018, a decreased of 31.9% or 3.4%/year. On the other hand, the growth of global wooden furnitures export increased by 5.8% or 0.5%/year in the same period. This study aims to analyze export performance and estimate export demand function of Indonesia wooden furnitures that would be used for policy development of Indonesia wooden furnitures industry. Export performance was analyzed using Constant Market Share (CMS) and estimation export demand function was analyzed using panel data regression. Three types of approaches were used in estimating models in panel data, which were pooled least square model, fixed effect model, and random effect model. The results showed that the export performance of wooden furnitures in 2007-2018 sharply declined mainly due to the decline in competitiveness, followed by commodity composition effect and market distribution effect. The positive effect of global market growth reflects an increase of Indonesia export but it was not large enough to overcome the decline of export. The export demand function of Indonesian wooden furnitures can be estimated using fixed effect model. The values of relative price elasticity, income elasticity and adjusted R2 were found to be -0,45, 0,8, and 0,99, respectively. The variations in export demand of Indonesian wooden furnitures could be explained very well. . Keywords: CMS, export demand function, export performance, panel data regression
Keyword: CMS, Export Demand Function, Panel Data Regression, Export Performance

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