Judul: Pengaruh Struktur Vegetasi terhadap Iklim Mikro dikawasan Kota Tangerang
Abstrak: Pertumbuhan penduduk kota Tangerang yang terus meningkat berpengaruh pada pembangunan fisik kota. Pembangunan ini menyebabkan ruang terbuka hijau semakin berkurang karena telah dirubah menjadi ruang terbangun. Luas ruang terbuka hijau kota Tangerang saat ini kurang dari 30 persen. Ruang terbuka hijau sangat penting perananya untuk menjaga kondisi iklim mikro. Ruang terbuka hijau terdiri atas vegetasi pohon, semak dan rumput. Setiap struktur tanaman yang berbeda memberikan pengaruh yang berbeda terhadap iklim mikro di sekitarnya. Penelitian ini bertujuan untuk mengetahui pengaruh struktur vegetasi terhadap iklim mikro (suhu dan kelembaban) pada land use yang berbeda-beda seperti, RTH kota, perumahan, CBD, dan industri dengan menggunakan alat heavy weather. Hasil penelitian ini menunjukkan bahwa struktur vegetasi pohon mampu menurunkan suhu (32.46 -34.87 0C) lebih tinggi dibandingkan dengan semak (33.38 -38.47 0C), dan rumput (33.60-39.16 0C) serta meningkatkan kelembaban lebih tinggi yaitu pohon (57.50-69.67 persen), dibandingkan dengan semak (54.23-66.17 persen) dan rumput (48.65-63.99 persen). Faktor-faktor yang mempengaruhi iklim mikro yaitu faktor lingkungan, aktivitas kawasan dan jenis vegetasi yang ada pada setiap land use tersebut.
Keyword: Heavy Weather, iklim Mikro, Kenyamanan, Land use, Struktur vegetasi

Judul: Pengaruh Struktur Vegetasi terhadap Iklim Mikro di Kawasan Kota Bekasi
Abstrak: The development of a city impacts to the land diversion from green open land into land used, so that the proportion of green open spaces become more diminish. The green open spaces have an important role to control the micro-climate, that provide cosiness for the people who live in there. Green open spaces consists of vegetation structure of the trees, shrubs and grasses. Each of the vegetation structure gives the different effect on the surrounding microclimate. The aim of this study is to determine the influence of the vegetation structure (trees, shrubs and grasses) on microclimate (temperature and humidity) in the different land used such as RTH city, residential, Central Bussiness Distric (CBD) and the industry by using measuring device of temperature and humadity is heavy weather. The result of this study stated that the structure of the trees vegetation is able to reduce the temperature by 0.64-3.97 ° C hinger than other vegetation structure so that the planting of trees a lot quantities at RTH is recommended because its function is very effective in the amelioration of climate. The factors that influence the microclimate are environmental factors, activity area and the type of vegetation that exist in each of the land used.
Keyword: Heavy Weather, land use, microclimate, vegetation structure

Judul: Separation of Neodymium from U3Si2/Al Fuel Plate for Burn-Up Determination
Abstrak: Neodymium is a common fission product produced in nuclear fission reactions. Neodymium in this study was chosen as a burn-up indicator for U3Si2/Al fuel element plates because the neodymium isotope is a stable fission product with a fairly high yield. Some procedures were carried out to separate neodymium, starting with the separation of cesium isotopes (137Cs, 134Cs) through the precipitation method, then separation of uranium isotopes (235U, 238U) and plutonium isotopes (239Pu, 238Pu) with Dowex 1x8 ion exchange resin, and separation of neodymium (Nd), samarium (Sm), as well as cerium (Ce) with Dowex 1x4 ion exchange resin. The Cs recovery reached 99.95%. The U and Pu isotopes resulting from the separation are subjected to an electrodeposition process and the weight of each isotope can be measured with an alpha spectrometer. The separation results of Nd from Sm and Ce have been proven using an XRF spectrometer. The neodymium isotopes separation was corrected using the standard addition method, and an average total Nd content of 2.4 ppm was obtained in the PEB U3Si2/Al bottom solution. It is hoped that this separation method can be applied in determining burn-up of nuclear fuel.
Keyword: neodymium, burn-up indicator, U3Si2/Al fuel plate