Market assessment overview

Market assessment, refined with analysis disaggregated from a national level to the regional level and to specific market applications, resulted in more accurate and detailed market estimates. The development of an integrated set of computer simulations, coupled with refined market data, allowed progress in the ability to evaluate the worth of solar thermal parabolic dish systems. In-depth analyses of both electric and thermal market applications of these systems are described. The following market assessment studies were undertaken: (1) regional analysis of the near term market for parabolic dish systems; (2) potential early market estimate for electric applications; (3) potential early market estimate for industrial process heat/cogeneration applications; and (4) selection of thermal and electric application case studies for fiscal year 1981

Irrigation market for solar thermal parabolic dish systems

The potential size of the onfarm-pumped irrigation market for solar thermal parabolic dish systems in seven high-insolation states is estimated. The study is restricted to the displacement of three specific fuels: gasoline, diesel and natural gas. The model was developed to estimate the optimal number of parabolic dish modules per farm based on the minimum cost mix of conventional and solar thermal energy required to meet irrigation needs. The study concludes that the potential market size for onfarm-pumped irrigation applications ranges from 101,000 modules when a 14 percent real discount rate is assumed to 220,000 modules when the real discount rate drops to 8 percent. Arizona, Kansas, Nebraska, New Mexico and Texas account for 98 percent of the total demand for this application, with the natural gas replacement market accounting for the largest segment (71 percent) of the total market

Note on: "Domain wall universe in the Einstein--Born--Infeld theory" Phys. Lett. B 679 (2009) 160

The interaction between bulk and dynamic domain wall in the presence of a linear / non-linear electromagnetism make energy density, tension and pressure on the wall all variables, depending on the wall position. In [1] this fact seems to be ignored.Comment: 4 pages, 1 figur

KritiK EpistEmologi Tafsir KontEmporEr (Studi Atas Kritik Jama>l Al-Banna> Terhadap Beberapa Pemikir Al-Qur\u27an Kontemporer)

This preliminary article explains the Jamal al-Banna\u27s epistemological critique on Qur\u27anic exegesis in his book entitled Tafsir al-Qur\u27an Baina al-Qudama ‘wa al-muhditsin. Recent development of Qur\u27anic studies has witnessed some progressive Islamic thinkers, those who have made such a new color on the study of the Qur\u27an. Starts from a brief description on the contemporary trend of Qur\u27anic studies, this article aims to explain Jamal al-Banna\u27s criticism on several Qur\u27anic thinkers, including Amin al-Khuli, Muh ammad Syahrur, Mohammed Arkoun, Nasr Hamid Abu Zaid, and Orientalist views on the Qur\u27an. It finally deals with an offer from Jamal al-Banna in the context of a new paradigm in the study of the Qur\u27an

Analisis Perubahan Luas Tutupan Lahan Bervegetasi terhadap Penyerapan Gas Co2 di Kota Pontianak

Tutupan lahan bervegetasi merupakan bagian penting bagi kehidupan masyarakat di wilayah perkotaan, peningkatan jumlah penduduk Kota Pontianak berdampak pada pengalihfungsian lahan bervegetasi menjadi area terbangun sehingga mengurangi luas tutupan lahan bervegetasi kota. Penelitian ini bertujuan untuk: (1) menginterpretasi Perubahan luas tutupan lahan bervegetasi di Kota Pontianak pada tahun 2002, 2007, dan 2012; (2) mengestimasi kemampuan luas tutupan lahan bervegetasi dalam penyerapan emisi karbon dioksida di Kota Pontianak pada tahun 2002, 2007, dan 2012; (3) memprediksi luas tutupan lahan bervegetasi dan kemampuan vegetasi dalam menyerap emisi karbon dioksida pada tahun 2017. Metode yang digunakan dalam penelitian ini adalah interpretasi citra Landsat ETM 7 tahun 2002, 2007, dan 2012. Pengolahan awal meliputi subset image terhadap citra Landsat ETM 7. Pengolahan tahap lanjut adalah melakukan klasifikasi terbimbing terhadap citra Landsat ETM 7 kemudian melakukan recoding terhadap hasil klasifikasi citra. Sedangkan untuk perhitungan emisi CO2 mengacu pada nilai serapan karbon dioksida untuk masing-masing tipe vegetasi yang dikeluarkan oleh Prasetyo tahun 2002. Analisis dilakukan untuk melihat Perubahan tutupan lahan Kota Pontianak antara tahun 2002, 2007, dan 2012. Hasil prediksi yang diperoleh selama kurun waktu 15 tahun (tahun 2002-2017) telah terjadi Perubahan luas tutupan lahan bervegetasi di wilayah Kota Pontianak dengan penurunan terbesar terdapat pada lahan vegetasi dengan kelas pohon yaitu terjadi penurunan sebesar 1.109,08 ha, dengan semakin berkurangnya luas tutupan lahan bervegetasi mengakibatkan menurunnya kemampuan ruang hijau dalam menyerap gas CO2 selama kurun waktu 15 tahun sebesar 666.050,91 CO2 ton/tahun yaitu dari 731.662,89 CO2 ton/tahun menjadi 37201,03 CO2 ton/tahun