Phototherapy Radiometer with AS7262 Sensor

The phototherapy is a device used in hyperbilirubinemia therapy by using blue light radiation with ranges between 425nm-475nm. The effectiveness of hyperbilirubinemia therapy depends on the amount of energy emitted by light which expressed in μW/cm2. The purpose of this study is to develop a low-cost and high accuracy Phototherapy radiometer. Measurement of blue light irradiance using the AS7262 sensor which can measure the irradiance of visible light with a wavelength of 450nm, 500nm, 550nm, 570nm, 600nm, 650nm with relative responsiveness of 1 time at each wavelength. SD card memory is used to save measurement data of irradiance so that it can be processed later. Based on the blue light irradiance data collected the smallest error value is 0,40% at a distance of 10cm while the biggest error value is 9,01%  at a distance of 30cm. After testing the entire system, the device can be used according to its function and purpose

Efektifitas Herbisida Penokxulam Terhadap Pengendalian Gulma Dan Hasil Tanaman Padi (Oriza Sativa L.) Dengan Sistem Tanam Benih Langsung

This study aimed to determine the effectiveness of penoxulam herbicide in controlling weed and its effect on yield of rice (Oryza sativa L.) under direct seeding system. This study used a Randomized Block design with six treatments and carried out from Agusts - November 2014 in Tolai village, Torue Sub District, Moutong Parigi District. The treatments tested were the rates of active ingredient of penoksulam at 1.2 ml plot-1, 1.8 ml plot-1, 2.4 ml plot-1, 5.0 ml plot-1, 12.0 ml plot-1, and with no herbicide added (control). The experimental plots had a dimension of 4 m x 5 m each. The herbicide at the rates up to 12.0 ml plot-1 added at 3, 7 and 14 days after application only caused mild symptoms on the rice plants. The dominant weeds controlled by the herbicide included Fimbristylis miliacea, Echinochloa crusgalli, Ludwigia octovalvis, Monochoria vaginalis, Cyperus iria, Cyperus difformis, Leptochloa chinensis and Limnoharis. The effective rates of the herbicide that can increase the production was ranged from 1.2 ml plot-1 to 2.4 ml plot-1

Perbaikan Teknologi Produksi Benih Bawang Merah (Allium Cepa L.) melalui Pengaturan Jarak Tanam dan Pemupukan Kalium

The Study was aimed to observe optimal planting distance and potassium fertilizer to produce shallot in palu valley. The factorial Randomized Block Design (RAK) with two treatments was used. The first factor was the dosage of K fertilizer namelywithout KCl (control), 20 g KCl/m2, and 30 g KCl m-2. The second factor was planting distance with 3 standards: 15 x 10 cm, 15 x 15 cm, and 15 x 20 cm. The result of the study showed that the application of potassium fertilizer gave significant effects on plant height, number of leaves, number of tillers, number of tuber per clump, tuber weight per clump, and tuber weight per hectare. The highest amounts of plant height, number of tillers, number of tuber per clump, tuber weight per clump, and tuber weight per hectare were affected by the application of 20 g KCl m-2 ; 29.09 cm, 7.40 cloves, 32.22 g, and 11.35 ton ha-1, yet they did not give any significant effect on bulb diameter. On the other hand, planting distance treatment significantly affected plant height in 60 days after planting, number of tillers in 30 days after planting, bulb diameter, and tuber weight per clump, yet it did not give any significant effect on number of leaves, number of tuber per clump, and tuber weight per hectare. The interaction of potassium fertilizer application and planting distance did not give any significant effect on all the observed variables

Uji Viabilitas Benih Ketimun (Cucumis Sativus L) Hasil Perlakuan Penyerbukan Berbagai Serangga

The aim of the study was to test the cucumber seeds viability which was pollinated by different pollinators. Good seed viability is important to ensure the production. In fact successful of pollination will influence seed quality and production. This study was conducted in a completely randomized design (CRD) with one factor. Seeds used in this study were collected from previous experiment which was pollinated by different pollinators (insects, wind and human). We germinated 20 seeds per treatment. The result showed insects pollinated seeds are better than wind and human influenced. The density of the insects are not influenced the viability of the seeds. Germination rate, germination time, uniformity of seedlings is better in insect's pollinated seeds

Pengaruh Ukuran Umbi Dan Dosis Kalium Terhadap Pertumbuhan Dan Hasil Produksi Bawang Merah (Allium Ascalonicum L.) Varietas Lembah Palu

The objective of this research was to study the effect of tuber size and rates of K fertilizer on the growth and yield of shallot (var. Lembah Palu). The site of this research was in Guntarano village, Tanantovea Sub District of Donggala District. This research began from June 2013 to August 2013. A randomized block design was used in this research which used two factors namely tuber size and rates of Kalium. The tuber size consisted of two levels, small tuber (U1= 1.7-2.3g tuber-1) and large tuber (U2= 2.4-3.0 g tuber-1). The K fertilizer consisted of four rates i.e. 100 kg ha-1 K2O (K1), 150 kg ha-1 K2O (K2), 200 kg ha-1 K2O (K3), and 250 kg ha-1 K2O (K4). The research treatments were replicated three times. This research showed that the tuber size significantly affected all growth and yield parameters except plant height. The large tubers resulted in better growth than the small tubers. While K rates showed significant effect on all growth and yield parameters except shoot numbers. The K fertilizer applied at the rate of 100 kg ha-1 and 250 kg ha-1 showed greater yield than the others. There was an interaction effects between tuber size and the rates of K fertilizer for all growth and yield parameters, except leaf number, shoot number and tuber diameter. The small tuber size applied with 100 kg K ha-1 and the large tuber size applied with 250 kg K ha-1 vindicated greater growth and production of shallot plant (var. Lembah Palu)

Reliability Study of the Liquid Target Chamber for 18F Production at the BATAN’s Cyclotron Facilities

The liquid target chamber for 18F production at the Cyclotron Division, Centre for Radioisotopes and Radiopharmaceuticals (PRR) of the National Nuclear Energy Agency of Indonesia (BATAN) has been analysed for its reliability in enduring high pressures and heat transfer requirements during proton beam bombardment as well as the recommended irradiation parameters for effective 18F production. The target chamber was subject to house the 18O-enriched water bombarded with high energy proton beam to produce 18F. A range of SRIM-computer simulations have also been conducted to calculate the ranges of several energetic proton beams (of up to 20 MeV) into pure water target. A study of radioactive impurities which might be produced from the proton-irradiated chamber’s materials was also included based on some references. Due to concern over the heat produced during target irradiation, a heat transfer analysis - particularly for the target’s cavity - was also included in the presented studies to obtain a brief preliminary calculation of the heating impacts prior to irradiation tests. The calculation was performed for various proton beam currents and energies of up to 30 μA and 20 MeV respectively. It was found that the chamber was reliable for production of 18F from proton irradiated-18O enriched-water target by maintaining the chamber’s pressure of up to 3.6 bar if the proton beam current was kept below 16 μA for all energies or the proton beam energy was kept to or below 10 MeV for any employed beam currents. The overall heat transfer coefficient was also found to depend on the power deposited into the water target. Received: 25 June 2010; Revised: 20 March 2011; Accepted: 08 April 201

AJIAN PUPUK ORGANIK CAIR LENGKAP DOSIS RENDAH PADA SISTEM BUDIDAYA TANPA OLAH TANAH TERHADAP PERTUMBUHAN GULMA DAN HASIL JAGUNG

The research aim was to identify the effect of liquid organic fertilizer at low dosage on weeds growth and corn yield in no tillage agriculture. The research was conducted in farmer’s land in Donggala Regency, and in the laboratory of agricultural Faculty of  Tadulako University from May 2007 to  September 2007. The research used a Randomized Block Design in a Factorial experiment with three replicates.  Two factors applied were no tillage agriculture and complete liquid fertilizer. The first factor included no tillage (TOT), TOT + mulch, TOT + glysofat, and TOT+mulch+glysofat.  The second factor consisted of no fertilizer, complete liquid fertilizer at 1/3 recommended dosage (1 L ha-1), complete liquid fertilizer at 2/3 recommended dosage (2 L ha-1), and complete liquid fertilizer at equal to recommended dosage (3 L ha-1).  The research results showed that there was no interaction effect on weeds dry weight ha-1, dry kernel yield ha-1, 100 kernel weight, kernel number per cob, and cob length.  The NJD of weeds changed from broad leave weeds group of  Alternanthera sessilis (L.) DC to teky weeds of  Cyperus rotundus L. The no tillage+mulch+ glisofat treatment resulted in the lowest weeds dry weight of 20.556 g, the highest dry kernel yield of 4,338 ton ha-1, and 100 kernel weight of 34.876 g

Evaluasi Pelaksanaan Pemeriksaan Pajak Restoran sebagai Upaya Optimalisasi Penerimaan Pajak Restoran Kota Administrasi Jakarta Barat

Regional tax is one of the sources of local revenue used in regional development. Restaurant tax is one of the types of regional tax. In the context of optimization revenue from tax restaurant, the efforts is do tax auditon restaurant business. The tax audit aimed to know and optimize the revenue from tax restaurant in West Jakarta Administration City. This research aims to evaluate the implementation of tax restaurant audit which do by Suku Dinas Pelayanan Pajak West Jakarta Administration City and know the impact from the audit of tax restaurant revenue. The results of this research shows that the procedure tax audit of tax restaurant has been done according to the standar precedure. The impact from tax audit of tax restaurant shows that the level of revenue from tax audit is very small if seen from specified target