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Journal of Research and Technology
Published by Universitas NU Sidoarjo
ISSN : 24605972     EISSN : 24776165     DOI : -
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering
Journal of Research and Technology published since 2015 contains a collection of a selected articles from the results of research and study of literature which is relevant to industrial , chemical, and environment engineering. Target readers of the Journal of Research and Technology are scientists, academics, and practitioners from various fields of industry.
Arjuna Subject : -
Articles 454 Documents
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PENGARUH POROSITAS PACKING STEEL WOOL TERHADAP PRESSURE DROP DIDALAM PACKED BED COLUMN PADA DISTILASI CAMPURAN ETANOL-AMIL-ALKOHOL-AIR Trisna Kumala Dhaniswara; Tri Widjaja; Ali Altway
Journal of Research and Technology Vol. 2 No. 1 (2016): JRT Volume 1 No 1 Jun 2016
Publisher : 2477 - 6165

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Abstract

Inventories of petroleum fuels are increasingly depleted and will someday run out. These shortcomings can be overcome by using alternative fuels, such as ethanol. Based on this, it is necessary to research and development of ethanol as a fuel. One way is with a separation in a packed distillation column. This study aims to assess the mass transfer phenomena that occur in the process of distilling a mixture of ethanol-water-amyl alcohol packed in column. In addition, this study aims to optimize temperature and reflux to obtain the highest levels of ethanol. This research method uses packed bed distillation system with the batch process. Feed used is synthetic ethanol, water, and solvent. Solvent used were amyl alcohol. Doing distillation with heating temperature is maintained. Distillation is done in the packing of stainless steel wool. Research carried out in a batch process with a variable temperature of 79°C; 84°C; 91°C; and porosity packing 20%; 30%; 40%; 50%; 60%; 70%; 80%.
IMPORTANCE PERFORMANCE ANALYSIS (IPA) APPLICATION FOR EXTERNAL EVALUATION OF ORGANISATION’S MISSION STATEMENT PERFORMANCE Gogor Arif Handiwibowo
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
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Abstract

One of strategic formulation result is organization’s mission statements. In the implementation, organization’s mission statements are distributed and implemented in organization activities. Evaluation is needed to describe the evaluation of all organization activities based on mission statements. Overall, evaluation is needed to ensure the alignment of formulation to implementation. Importance Performance Analysis (IPA) method is proposed to evaluate the achievement of organization’s mission statements from external perspective. This method is implemented evaluate part of mission statements at MMT-ITS Department from the students’ perspective. The evaluation analyze the gap between importance and performance level of the mission statements.
ANALISIS REMOVAL SCALING SILIKA PADA JALUR RE-INJEKSI BRINE PEMBANGKIT LISTRIK ENERGI PANAS BUMI DENGAN MENGGUNAKAN ASAM FLUORIDA Adhi Setiawan; Deris Eko Saputro; Agung Nugroho
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
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Abstract

Silica scale formation on the brine re-injection lines of geothermal power plants can lead to serious problems because it increased pressure drop and failure of the safety devices. One of the most effective methods to solve the problem is acidification of silica scaling using hydroflouric acid (HF). HF has a unique characteristic that is highly reactive with SiO2, easily obtained in the market and cheap. The use of HF can increase the rate of material corrosion in re-injection lines material. The use of HF should be adjusted to the appropriate concentration so it can dissolve silica scale optimally without shortening its life service. The concentration of HF used in the experiment were 5, 10, and 15% wt. The results showed that the optimum concentration of HF in dissolving silica at 15%. This is due to its ability to dissolve the crust mostly greatest than most other concentration that is equal to 21% of the total dissolved silica. The rate of corrosion on the material re-injection line with a concentration of 15% is equal to 0.647 mm/y and provide about 4.63 years life time of pipe.
PEMILIHAN INVESTASI KELUARGA UNTUK MENINGKATKAN EKONOMI KECIL DAN MENENGAH DENGAN MENGGUNAKAN AHP Misbahul Munir
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
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Abstract

Financial management has an important role in a small family. Many mistakes made in the conduct of investment by a family, it rose doubts in investing. It is necessary to understand to many criterias, so it can be determined the type of investment that appropriate with the family financial conditions. The method used in this research is the Analytic Hierarchy Process (AHP). AHP is used in order to reduce subjectivity of decision-makers. The alternatives in this study are Savings, Gold Investment, Stocks, Insurance, and Property. To optimize the family's investment, it is necessary to make a ranking priority. The ranking was based on five criterias: Economic of Family, Benefit Investment, Operational, Legal, and Syariah Aspect. Based on the alternatives andcriteria and also sub-criteria, the decision of hierarchical model were created. According to experts, the comparison between four criterias and sub-criterias were assessed. The comparison was then tested for consistency. Data were processed using Expert Choice software version 11. The final result is priority ranking of the purchasing property investment with a weight point of 0,313.
ANALYTIC HIERARCHY PROCESS (AHP) UNTUK PENENTUAN RANGKING PENGGUNAAN LAHAN Anita Theresia Kurniawati; Misbahul Munir
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
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Abstract

In urban spatial planning, the Local Government prioritizes land use to support planning development. The use of available land in an area must be adjusted to the function. So far, sometimes in an area the use of available land in an area does not fit with its function. Therefore, in this research will be determined the priority and ranking of land use by using Analytic Hierarchy Process (AHP). Ranking is based on four aspect criterias: social demography, economic, spatial and regional plan (RTRW), and environmental aspect. Based on the alternatives and criteria and also subcriteria, the decision hierarchy model is made. Then it will be assessed for the comparison between criterias and subcriterias and their consistency value. The result is achieved by using Expert Choice software version 11 and analysis, it showed that the main priority of land allocation in Sidoarjo regency was used as agricultural land (31.9%).
PEMANFAATAN GELOMBANG MIKRO DALAM EKSTRAKSI ANTOSIANIN DARI KULIT BUAH NAGA SEBAGAI PENGGANTI RHODAMIN B UNTUK SEDIAAN PEWARNA BIBIR ALAMI Arief Adhiksana; Andi Jumardi; Kusyanto; Rina Andriani
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
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Abstract

Today, microwave can be used in various chemical processes. The advantage of microwaves is able to deliver energy directly to the material. One of microwave application is the extraction process of natural materials. Microwaves can be used to reduce extraction process time of the anthocyanin from the dragon fruit skin. This research aims to determine the solvent extracted effect to the anthocyanin extraction of dragon fruit skin using microwaves. The solvent used was 95% ethanol, 85% ethanol, 75% ethanol, 95% ethanol –citric acid, 85% ethanol -acids and 75% - citric acid ethanol to the anthocyanin extraction results of dragon fruit skin extracted using microwaves. The consumption of microwave power is 400 watt with 50 gram of dragon fruits skin. Then, anthocyanin extracts are mixed with supporting materials to be made as lipstick and proposed for topical and favorite test. The best yield can be obtained by using ethanol-citric acid solvent at 25,031%.
KARAKTERISTIK BIODIESEL DENGAN MENGGUNAKAN ETANOL KONSENTRASI RENDAH Erlinda Ningsih; Suparto
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
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Abstract

Biodiesel is produce by transesterification process using alcohol and the most alcohol used in biodiesel manufacturing is methanol. Methanol is made from non-renewable material. Whereas, ethanol made from renewable materials and the price of pure ethanol is expensive. So, research to produce biodiesel with low ethanol concentration was conducted. This research was aimed to know the mole ratio of oil toward ethanol and the best reaction time in this biodiesel production. The mole ratios of oil toward ethanol used were 1:12, 1:14, 1:16 and the time reactions were one, two, and three hours. This research was started by heating the oil to temperature 60oC, then adding ethanol solution and NaOH and being reacted into several variations of time. After that, the separating and washing process were executed. From the analysis result, the biodiesel produced is appropriate with the requirements of SNI 04-7182-2006.
ALKALINE PRETREATMENT DAN PROSES SIMULTAN SAKARIFIKASI-FERMENTASI TERHADAP KADAR ETANOL DARI SERABUT KELAPA Era Devi Istihaji; Joko Budiarto; Lisa Mastura; Rianthy Juniar; Muhammad Cahyo; Dedy Irawan
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
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Abstract

This mature coconut fibers utilized have traditionally been handcrafted with low economic value and mostly just be a waste. In this study, coconut fibers used as materials for bioethanol. A total of 100 grams of fibers delignified by using NaOH solution with a concentration variation of 1%, 1.5%, 2%, 2.5% and 3%, which was created earlier. Delignification carried out for 90 minutes at a temperature of 90°C and the stirring rotation of 150 rpm. Then the results of delignification rinsed and fibers are fermented for 7 days simultaneously using 15% Saccharomyses cerevisiae, Trichoderma sp 10% and 5% Aspergillus niger. Fermented then filtered and distilled liquid to be taken. The results were analyzed using GC distillation and obtained the best results with ethanol concentration of 213.12 mg / mL and the resulting yield of 2.69%.
PENGENDALIAN PERSEDIAAN MATERIAL UNTUK MEMENUHI SISTEM PRODUKSI MAKE TO ORDER MENGGUNAKAN MATERIAL REQUIREMENT PLANNING (MRP) Nur Rahmawati; Ayu Aimmatus Sholichah
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
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Abstract

CV. Dua Putra is a manufacturing company that categorized as a low medium enterprice. This company produces shoes such as futsal shoes, running shoes, casual, and also kids shoes. This company still using traditional inventory planning where component of their product will be bought when the stock is out. As a consequence there often be exceed and also run out of inventory in the storage. This research is aimed to plan material inventory for Airpro futsal on CV. Dua Putra. The method that is used in this reseach is Material Requirement Planning (MRP). Based on MRP result, the time required to complete demand in september is 34 days, 34 days for demand in October, and 23 days for demand in November.
NUTRITIONAL STATUS OF PREGNANT WOMEN IN RELATION TO THE PREVALENCE OF INFANT LOW BIRTH WEIGHT (LBW) (Case Study in Sugihwaras, Bojonegoro during 2017) Fitriana Ikhtiarinawati Fajrin
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
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Abstract

This study aims to analyse the relationship of nutritional status of pregnant women with the prevalence of LBW. A quantitative study with the descriptive analytic design was conducted using cross-sectional approach in primary health care (Puskesmas) Sugihwaras, Bojonegoro.The subject of this study is all babies with Low Birth Weight (LBW) at Puskesmas Sugihwaras Bojonegoro. Hence, the sampling technique was total sampling. Data was collected using secondary data instrument such as medical record and mother-child healthreport (KIA) from Puskesmas Sugihwaras. Nutritional status of pregnant women was assessed based on measurement of Mid-upper Arm Circumference. The spearman rank correlation test showed that there is a significant correlation (p-value <0,05)between nutritional status of pregnant mother with the prevalence of LBW in Puskesmas of Sugihwaras, Bojonegoro.

Page 24 of 46 | Total Record : 454

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