Judul: Perencanaan Lanskap Untuk Pelestarian Kawasan Sejarah Kesawan Medan
Abstrak: Kesawan terletak di Kecamatan Medan Barat, Medan, Provinsi Sumatera Utara. Kawasan ini merupakan cikal bakal berdirinya Kota Medan. Kesawan awalnya merupakan bagian dari wilayah perkebunan Deli. Kemudian, Kawasan Kesawan berkembang menjadi Pecinan setelah kantor perkebunan Deli dipindahkan ke Medan dari Labuhan Deli. Kawasan ini dicirikan oleh ruko-ruko Cina dan bangunan bergaya arsitektur kolonial. Perkembangan pesat Kota Medan belakangan ini mengancam perombakan dari kawasan bersejarah. Tujuan utama dari penelitian ini adalah untuk menyusun rencana lanskap untuk pelestarian dari Kawasan Kesawan. Tahapan penelitian meliputi persiapan, inventarisasi, analisis, sintesis, konsep, dan perencanaan. Analisis dilakukan untuk menentukan karakteristik dan mengidentifikasi signifikansi dari lanskap sejarah menggunakan kriteria Harris dan Dines (1998). Peta komposit hasil dari signifikansi digunakan untuk arahan tindakan pelestarian, konsep ruang, sirkulasi, dan tata bangunan. Tingkat signifikansi dipertimbangkan untuk membuat rencana pelestarian lanskap sejarah. Hasil akhir dari penelitian ini disajikan dalam rencana lanskap pelestarian sejarah Kesawan Medan
Keyword: Kesawan Medan, lanskap sejarah, pelestarian sejarah, perencanaan lanskap

Judul: Perencanam Lanskap Sunda Kalapa, Jakarta Utara Sebagai Kawasan W isata Sejarah
Abstrak: Perkembangan kota Jakarta dari waktu ke waktu sangatlah cepat, cehingga menyebabkan kota-kota tua banyak yang tergusur untuk dijadikan daerah baru yang lebih modern. Apabila hal tersebut tidak ditanggulangi secara dini maka keberadaan Kota lama Jakarta akan hilang. Hal inilah yang melatar belakangi untuk dilakukan tindakan perlindungan dan revitalisasi kawasan bersejarah Sund Kalapa. Adapun tujuan yang ingin dicapai dalam penelitian ini adalah membuat suatu proses perencanaan lanskap sejarah kawasan Sunda Kalapa, Jakarta Utara. Hal ini diharapkan selain menunjang nilai arsitektur bangunan bersejarah dan menambah nilai kualitas lingkungan, juga meningkatkan aktivitas wisata sejarah.
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Judul: Enhancement of photon absorbtion on BaxSr1-xTiO3 thin films semiconductor using photonic crystals.
Abstrak: In this research, has been conducted BaxSr1-xTiO3 (BST) thin films manufacturing for mole fraction x = 0.25, 0.35, 0.45, and 0.55; and concentration of 1 molar using chemical solution depositon (CSD) method. The materials, which are used in this research, are barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%], titanium isopropoxide [Ti(C12O4H28), 97.999%], gallium trioxide [Ga2O3], 2-methoxyethanol [H3COOCH2CH2OH, 99%] and 1 x 1 cm of transparent conductive oxide (TCO) glass as substrate. Two BST thin films are made that for BST thin films which are doped by 10% galium (BGST) as p-type layer and pure BST solution as n-type. BST solution is made by reacting barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%] and titanium isopropoxide [Ti(C12O4H28)] into 2-methoxyethanol solvent [H3COOCH2CH2OH, 99%] in accordance with mass gram for each x value. While, BGST solution is made in the same way as BST solution, plus adding gallium at 10% of the mass of BST. Once all materials are reacted, then vibrated using ultrasonic for 90 minutes, and followed by coating BGST / BST on the TCO substrate. Once the layer is formed, then annealed for 15 hours at temperature of 500 °C with increasing rate of 1.67 oC/minute. Characterizations of BST thin films with or without photonic crystals include the absorbance and transmittance in the visible light spectrum, as well as the electrical photoconductivity characterizations. From BST thin films without photonic crystals indicate that our thin films have light absorption area on almost the entire range of the visible light spectrum even to the infrared range with absorption value over than 67.6%, in addition, it can be seen that the maximum absorbance of BST thin films for all mole fractions lie in blue to green light spectrum region, 457 nm ≤ λ ≤ 570 nm and the minimum in yellow to red light spectrum region, 570 nm ≤ λ ≤ 678 nm. The largest absorbance is found at x = 0.25 with average absorbance value of 92.04% and maximum and minimum absorbance peaks at wavelength of 500.89 and 657.72 nm, respectively. At x = 0.35, average absorbance value decreased to 83.55% with maximum and minimum peaks at 505.73 and 613.68 nm, respectively. Then increased to 91.16% at x = 0.45 with maximum and minimum peaks at 506.04 and 618.56 nm, respectively. At x = 0.55, average absorbance value decreased to 80.12% with maximum and minimum peaks at 507.85 and 608.79 nm, respectively. Moreover, it can be seen that the addition of barium mole fraction leads to wider maximum absorbance or minimum transmittance peaks and narrower minimum absorbance or maximum transmittance peaks in the same range of the green and blue & red light spectrums, respectively. BST thin films with photonic crystals show increasing in absorption for all x values in the range of 3.04 into 13.33%. At x = 0.25, average absorbance percentage increased 3.96% from 92.4 into 95.68%, for x = 0.35 average percentage increased 7.07% into 89.45 from 83.55%. Furthermore, average absorbance of BST thin films at x = 0.45 increased 3.04% from 91.16 into 93.93% and x = 0.55 has
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