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IPTEK The Journal for Technology and Science
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 08534098     EISSN : 20882033     DOI : -
Core Subject : Science,
Computer Science & IT
IPTEK The Journal for Technology and Science (eISSN: 2088-2033; Print ISSN:0853-4098), is an academic journal on the issued related to natural science and technology. The journal initially published four issues every year, i.e. February, May, August, and November. From 2014, IPTEK the Journal for Technology and Science publish three times a year, they are in April, August and December in online version.
Arjuna Subject : -
Articles 12 Documents
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Search results for , issue "Vol 31, No 1 (2020)" : 12 Documents clear
The Suitability Evaluation of Procurement Information Systems to the Needs of Users and Management Using Human, Organization, Technology-Fit (HOT-Fit) Framework Cahyono, Dwi; Suryani, Erma
IPTEK The Journal for Technology and Science Vol 31, No 1 (2020)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (530.298 KB) | DOI: 10.12962/j20882033.v31i1.6326

Abstract

Management Information System (MIS) in government institutions was a crucial thing in supporting good services to the community. The established MIS often provided less optimum benefits since the MIS development did not go through a good planning and was not supported by a clear IT Masterplan so that an evaluation of the MIS implementation is needed, especially from 3 (three) main aspects, including aspects of Human, Organization and Technology. The procurement unit of Malang City has a MIS for procurement submission called siBaja which has been established since 2016. This study aimed to evaluate the suitability of siBaja to the needs of users and management using Human, Organization, Technology-Fit (HOT-Fit) framework with some modifications.To obtain the data, a survey method was used by distributing questionnaires to the application users.The data analysis model used was SEM-PLS by using SmartPLS 3.0 software. This study found that the implementation of siBaja was not fully fit for the relationship between Human-Technology that was indicated by the absence of a significant effect between US variable and SQ variable with a significance value of 0.899 at α = 0.05 and was not fully fit for the relationship between Organization-Technology factor which was characterized by the absence of a significant effect between SC variable and IQ variable with a significance value of 0.221 at α = 0.05.
Designing An Automatic Microcontroller-based Drying Machine of Coffee Beans Derisma Derisma; Afdholli Putra; Dodon Yendri
IPTEK The Journal for Technology and Science Vol 31, No 1 (2020)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.309 KB) | DOI: 10.12962/j20882033.v31i1.5375

Abstract

This research was aimed to create an automatic microcontroller-based coffee beans drying machine without the support of sunlight to produce SNI-standardized coffee beans with small content of water or amounted to 12%. The designed machine consists of a tube-shaped container with 50 cm length and 11 cm radius, soil moisture sensor, DS18B20 temperature sensor, heater, motor DC, relay 2 channel and arduino uno microcontroller. The drying works when soil moisture sensor detects 12% of water content from big coffee beans. The drying process is done by applying heater to dry the coffee beans and the motor DC is used as the rotator of the container to evenly dry the coffee beans. The temperature of the drying container is around 51oC-55oC because the surface of coffee beans will be damaged if the temperature is above 55oC. When the water content of coffee beans is low or equal to 12%, the drying process is terminated. The drying process of heavy coffee beans (1kg) with 25.34% of initial water content takes 60 minutes with 11.74% of final water content as the result, While the drying process with the help of sunlight required approximately 310 minutes with 11.83% of final water content. It has been proved that the drying with machine was faster compared to the drying process through sunlight.

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