Judul: Analisis disparitas pembangunan antar wilayah di Kabupaten Sambas
Abstrak: Disparitas pembangunan antar wilayah seringkali menjadi permasalahan serius dan apabila tidak dieleminir secara bertahap dapat menimbulkan permasalahan yang lebih kompleks (seperti masalah kependudukan, sosial, ekonomi, politik dan lingkungan) serta dalam konteks makro sangat merugikan proses pembangunan yang ingin dicapai sebagai suatu bangsa yang utuh. Oleh sebab itu diperlukan pemahaman mengenai faktor-faktor penyebab terjadinya disparitas pembangunan antar wilayah. Faktor-faktor tersebut antara lain meliputi faktor biofisik/karakteristik wilayah (sumberdaya alam), sumberdaya buatan (ketersediaan sarana dan prasarana sosial-ekonomi), sumberdaya manusia, sumberdaya sosial, karakteristik struktur ekonomi wilayah, dan kebijakan pemerintah daerah. Dengan mengetahui faktor-faktor penyebab disparitas tersebut diharapkan dapat dikembangkan kebijakan dan strategi dalam rangka mengurangi tingkat disparitas yang terjadi. Bertolak dari hal tersebut di atas, maka penelitian ini bertujuan: (1) menentukan tingkat perkembangan/hirarki wilayah; (2) mengidentifikasi sektor unggulan pada tiap wilayah kecamatan; (3) menentukan tipologi dan karakteristik wilayah; (4) mengetahui tingkat disparitas pembangunan antar wilayah (kecamatan dan wilayah pengembangan), dan; (5) mengetahui faktor-faktor yang menyebabkan terjadinya disparitas pembangunan antar wilayah di Kabupaten Sambas.
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Judul: Analisis spasial disparitas pembangunan antar wilayah di provinsi Sumatera Barat
Abstrak: The phenomenon of disparity areas have become commonplace in the development of an area for various reasons. Development of region in the province of West Sumatra by naked eye there is a disparity in the region indicated. The objectives of this research are 1) determine the amount of disparity in development between regions, 2) identify the sectors held by each district / city; 3) determine the level of development and regional characteristics; 4) analyze the factors that cause disparities in development among regions; 5) to formulate strategies to address the problem of regional development disparities. Analytical methods used are Williamsons Index, Theill Index, Location Quotient Index, Shift Share Analysis, Scalogram Method, Entropy Index, Physical Analysis, Klassen Typology, Factor Analysis, Multiple Regression, and SWOT analysis. The analysis showed there are gaps in the province of West Sumatra which occurs predominantly among areas within the territory of the border region. Dominant sector in the district are agriculture, while in urban areas is service sector. The main factor that caused the region is an indicator of economic inequality and population indicators. The strategies that can be used to overcome the inequality are in development of other sectors of the economy of the agricultural sector and the optimization of the center point of growth and service center region.
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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