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Techno: Jurnal Penelitian
Published by Universitas Khairun
ISSN : 1978610X     EISSN : 25807129     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture
TECHNO: Jurnal Penelitian diterbitkan oleh Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Khairun, dua kali terbit dalam setahun dengan jumlah artikel dalam sekali terbit sebanyak 8 tulisan.
Arjuna Subject : -
Articles 169 Documents
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Interactive Multimedia Tutorial of Discovery Learning Model (iMTDLM); Improving Pre-Service Physics Teachers’ Pedagogical Competence Saprudin Saprudin; Nurdin Abdul Rahman; Fatma Hamid
TECHNO: JURNAL PENELITIAN Vol 11, No 2 (2022): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v11i2.5756

Abstract

This study aims to develop an interactive multimedia tutorial of discovery learning model (iMTDLM) and to examine its effect on the improvement of pedagogical competence and the ability of pre-service physics teachers (PPTs) in constructing lesson plans. This development research follows the ADDIE model (Analyze, Design, Develop, Implement dan Evaluate). The instruments used include a validation sheet for iMTDLM product, an instrument for assessing pedagogical competence, and an instrument for evaluating lesson plans. The implementation phase involved 9 PPTs who were taking the course Teaching Practice 1 at a university in the city of Ternate. The results of the study showed that the iMTDLM was successfully designed by combining the use of Adobe Director 11 and Filmora software. The use of the iMTDLM in the Teaching Practice 1 course yields a positive effect on the improvement of pedagogical competence and the PPTs’ ability to construct lesson plans.
Analysis of Trip Attraction Models in Morotai CBD (Central Business District) Fitro Darwis; Anggriyawan Djafar; Elfira Resti Mulya
TECHNO: JURNAL PENELITIAN Vol 11, No 2 (2022): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v11i2.5439

Abstract

The development of an area in land use can increase along with the increase in population in Morotai Island Regency, including the Morotai CBD area. In terms of urban transportation systems, generation and attraction have an important role in defining the development of a city, region, or area. The purpose of this research is to analyze of trip attraction modeling in the CBD area of Morotai. The concept of trip attraction modeling is analyzed using regression analysis, with various independent variables. The modeling analysis was carried out with the help of SPSS software using Stepwise multiple linear analysis methods. The results of the study show that the factors that influence the attraction of vehicle in the Morotai CBD area are : the number of visitors (X4), the ratio of visitors against the building area (X10), the ratio of employees against the number of rooms (X13), the number of rooms(X5), the ratio of employees against the building area (X11), as well as the ratio of employees against the number of rooms(X12). And from the results of linear regression analysis, the best transport attraction model was found to be Y 1 = 86.790 + 0.422X 4 – 558.735X 10 + 1.949X 13  for the motorcycle (SM) attraction model and Y 2 = 12.183 + 0.091X 5 – 26.265X 11 + 0.292X 12  for the light vehicle (KR) model.
The Effect of Container Type and Fermentation Period Towards Cocoa Beans Quality in Tidore Island Mustamin Anwar Masuku; Syamsul Bahri; Nurjanna Albaar; Irwan Makarunggala
TECHNO: JURNAL PENELITIAN Vol 11, No 2 (2022): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v11i2.5205

Abstract

The purpose of this study was to determine the effect of wooden box containers on the quality of fermented cocoa beans. The experimental design used was Completely Randomized Design (CRD) with one factor, namely the length of fermentation consisting of each treatment repeated 3 times so that 9 experiments were obtained. The results obtained are analyzed for variance and if there is a significant difference between treatments, the Dancen test will be carried out. By the results of the treatment and discussion, it can be concluded that after fermenting cocoa beans using wooden boxes, the results obtained were an increase in the fermentation index of dry cocoa beans on the 3rd to 5th days (0.243, 1.147 and 2.027). This number indicates a change in color from purple to brown. Furthermore, the yield of dry cocoa beans, the content of moldy beans, and the skin content were at quality levels B and C and the water content and fat content still met the requirements of SNI-2323-2008. Polyphenols as antioxidants are in the range of 0.06 - 0.08.  Based on this research it is also recommended that the fermentation process of beans use wooden boxes because it meets the requirements of the Indonesian National Standard for Cocoa Quality Number 2323-2008.
Crystal Structure and Magnetic Susceptibility of Iron Sand From Pangeo Village, Morotai Jaya Subdistrict as The Cathode of Lithium-Ion Batteries Rahim Achmad; Suryani Taib; Rohima Wahyu Ningrum
TECHNO: JURNAL PENELITIAN Vol 11, No 2 (2022): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v11i2.5562

Abstract

Morotai Island has a wealth of iron sand which is a natural resource in Morotai Jaya District, Pangeo Village. The utilization of iron sand is still for local community building materials. The purpose of this study was to determine the structure and magnetic susceptibility of iron sand as a basic material for cathode materials in the manufacture of lithium-ion batteries (LIB). The research sample was taken randomly, then it was prepared in the laboratory to obtain dry-phase iron sand. After being tested using an XRD tool, namely samples A, E, and I, it was found that there was a lot of Fe3O4 contained in iron sand. The diffraction peaks indicate Fe3O4 material with an inverse spinel structure. Sample A is the most crystalline compared to sample I. Sample E has the lowest diffraction peak pattern due to the dominant mineral hematite (Fe2O3) 70.31%. The value of the BSM test obtained the greatest magnetic susceptibility of 82867.54x10-8m3 /kg. The smallest is in sample J with a value of 13186.98 54x10-8m3 /kg because during synthesis it is slightly attracted by magnets and the color is not too black which mixes a lot with other materials. In addition, this relationship is directly proportional to sample E which contains the magnetic material Fe2O3 of the characterization of 70.31. The range of magnetic susceptibility values in samples A to L is in the interval (46 – 80,000) x 10-8m3/kg, and (20,000 - 110,000) x 10-8m3/kg. Based on this interval, both magnetic and mass susceptibility of each iron sand sample contained ilmenite (FeTiO3) particles in the antiferromagnetic group and magnetite (Fe3O4) in the ferromagnetic group.
Coconut Waste Pyrolysis Simulation Using Aspen Plus Software Muhammad Syukri Hasan; Widayat Widayat; Sri Widodo Agung Suedi
TECHNO: JURNAL PENELITIAN Vol 12, No 1 (2023): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v12i1.5263

Abstract

Currently, in the world are trying to substitute fossil energy for renewable energy. One of the renewable energy is biomass energy. Biomass is a renewable natural resource derived from biological nature. Biomass from palm shells has been successfully used by the Tembilahan PLTU as an effort to substitute coal. The results of technical evaluation and monitoring show operating parameters within normal limits. Palm shells are known to have a lower sulfur content than coal so that the emissions produced are less than coal. When viewed from the characteristics based on the analysis of proximate, ultimate and calorific value, it shows that the characteristics of biomass from coconut waste, especially coconut shells, are not significantly different from biomass from palm shells. This means that coconut shells can be considered as a renewable energy source. To improve the quality of the calorific value of biomass, a pyrolysis process is carried out to produce bio-charcoal. Modeling using Aspen Plus software has a difference average of less than 6%. Simulation results of coconut shell pyrolysis with maximum yield of bio-charcoal occurring at an operating temperature of 600°C which produces a total of 30.35% bio-charcoal, a calorific value (LHV) of 33.03 MJ/kg, and an ash content of 18.99%. While the simulation results of coconut shell pyrolysis with maximum syngas yield occurred at an operating temperature of 800°C which produced 82.43% syngas, high H2 49.67% and low CO2 2.90%.
Computational Chemistry: QSAR of Dental Disease Causing Streptococcus mutans Using Eugenol Derivative Compounds from Clove Essential Oil Muliadi Muliadi; Topan Setiawan; Ike Dwi Setiani; Nur Asbirayani Limatahu; Deasy Liestianty
TECHNO: JURNAL PENELITIAN Vol 12, No 1 (2023): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v12i1.5793

Abstract

Research on the activity of eugenol derived compounds as antimicrobials using the qualitative structure-activity relationship (QSAR) model has been conducted. Molecular structure modeling was executed computationally using the ChemDraw Ultra 12.0 program package. Geometry optimization was performed using AM1 semi-empirical method to stabilize structure with the least energy level. Calculations of hydrophobic, electronic, and steric descriptors were done using Gaussian-09 and Marvin Sketch 64 softwares. Statistical calculations was conducted through multiple linear regression method using the IBM SPSS 25 program. Statistical analysis was carried out based on the statistical requirements of several equation models so that the best equation model was obtained. The analysis with the QSAR equation model obtained that the model 1 equation presented the best results.
Look Up (Again) The Apophis Asteroid: Simulating and Visualizing Orbit Cahyo Puji Asmoro; Judhistira Aria Utama; Deni Karsa Sondana
TECHNO: JURNAL PENELITIAN Vol 12, No 1 (2023): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v12i1.5814

Abstract

The asteroid Apophis, first discovered in 2004 by American astronomers, is known to have a dangerous potential for planet Earth. Many early studies predict that in 2029 it will experience a close encounter and have a possible collision with the Earth at the next close encounter due to keyhole gravity. This research will explain how to carry out an orbit simulation using an orbit integrator to review this possibility and the evolution of the Apophis asteroid orbit over the next 500 years. The results of this study are expected to provide an understanding of simulating asteroid orbit from its orbital parameters and to build awareness of the threat of danger from small solar system objects such as asteroids, comets, and meteoroids.
Phytochemicals Screening and Antibacterial Activity of Teijsmaniadendron Holrungii from West Papua Sabir Sumarna; Muhammad Fajar Islam; Aslan Irunsah; Maria J. Sadsoeitoeboen; Kornela Irianti Mandatjan
TECHNO: JURNAL PENELITIAN Vol 12, No 1 (2023): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v12i1.5467

Abstract

Papua is an island with the highest flora biodiversity in the world. To date, the phytochemical content and antibacterial bioactivity of the Teijsmaniadendron holrungii plant from West Papua have never been reported. In this study, phytochemical screening and bioactivity tests of T. holrungii bark ethanol extract against E. coli and S. aureus bacteria were carried out. The results showed that T. holrungii bark ethanol extract contained alkaloids, flavonoids, steroids, and tannins. The inhibitory activity of bacterial growth increased with an increase in concentrations (w/v) of 5; 10; 20; 40; and 80%, with inhibitory zones of 14.5; 17; 18; 20; and 22 mm for E. coli bacteria and 4.5; 5.5; 6; 7.5; and 9.5 mm for S. aureus bacteria.
First Report of Genus Plumeria L. (1753) in Ternate Island as The Flora Ternate Database Suparman Suparman; Abdulrasyid Tolangara; Hasnah Ahmad; Wa Ode Risnawaty; Magfirah Rasyid
TECHNO: JURNAL PENELITIAN Vol 12, No 2 (2023): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v12i2.6594

Abstract

The genus Plumeria Tourn ex. Linn., family Apocynaceae Juss officially has 20 accepted species from around the world. The genus is native from Mexico to Caribbean; however, it was introduced to some part of world especially to tropical area. In this paper, we formally reported for the first time the data for the genus Plumeria in Ternate, North Maluku, Indonesia. The exploration research was conducted from March to June 2022 for around Ternate Island. All species of Plumeria spp are noted and collected from 21 villages as representative of five subdistricts in Ternate Island. Three accepted species namely Plumeria obtusa L., P. pudica Jacq., dan P. rubra L are validated in Ternate. All species are discovered as ornamental plant and cemetery marker. P. obtusa is the most common species found in many villages followed by P. rubra. This publication shares information about location, general utility, and key identification for every species
Anatomical and Agronomic Responses of Arabica Coffee Seedlings (Coffea arabica) to Addition of Nitrogen Distiana Wulanjari; Ketut Anom Wijaya; Budi Kriswanto
TECHNO: JURNAL PENELITIAN Vol 12, No 2 (2023): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v12i2.4242

Abstract

The role of nitrogen in plant growth is well known, but there have been few studies on the response of nitrogen fertilizers to changes in plant anatomy and agronomy. This study aims to observe the response of the tissue and organs of arabica coffee seedlings to adding nitrogen. Nitrogen is used in the urea fertilizer form. This research used a single factor of CRD with five replications. 4 levels were tried without urea fertilizer as a control (N1), dosage of urea fertilizer 15 g urea.plant-1 is equivalent to 6,9 g of nitrogen (N2), dosage of urea fertilizer 30 urea.plant-1 is equivalent to 13,8 g of nitrogen (N3), and dosage of urea fertilizer urea.plant-1 is equivalent to 20,7 g of nitrogen (N4). After application, the plants are incubated for 30 days to allow time for the fertilizer to be absorbed by the plants. The analysis result stated that the chlorophyll content was very significantly different, while other agronomic variables were not significantly different. Less adaptation period was thought to be the cause of the various agronomic variables being not significantly different. This is reinforced by the response that arises in plant tissue. The addition of urea fertilizer responded to the thickness of the mesophyll tissue, the size of the epidermal cells, and the regularity of the lower epidermal cells. The result of this research concluded that the response of plants to the treatment had not yet reached the organ level but was still at the tissue level.

Page 12 of 17 | Total Record : 169

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