cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Shanis Irsamayanti
Contact Email
shairsaa@gmail.com
Phone
+6282257213649
Journal Mail Official
journal.jmest@outlook.com
Editorial Address
Griyashanta A-37 RT 01 RW 12 Kel.Mojolangu Kec.Lowokwaru Malang
Location
Kota surabaya,
Jawa timur
INDONESIA
Journal of Marine-Earth Science and Technology
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : -     EISSN : 27745449     DOI : https://doi.org/10.12962/j27745449
Core Subject : Science,
Earth & Planetary Sciences Energy
In the fast-growing of science and technology of marine-earth related topics, we would like to launch a new international journal entitled MarineEarth Science and Technology Journal (JMEST). This journal is aimed as a media communication amongst scientists and engineers in the fields of marine and earth science and technology and will receive research and technical papers to be reviewed by our editors and reviewers. The JMEST issued three times a year and each issue consists of 5 (five) papers. The scope of the journal includes (but not limited to): Geology, Geophysics, Geochemistry, Atmospheric Science, Environmental Science, Hydrology, Geothermal, Marine Engineering, Marine Technology, Underwater Technology, Marine Renewable Energy
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Teknik Geologi dan Geologi Teknik
Articles 68 Documents
 2   3   4   5   6 
IDENTIFICATION ACTIVE POCKMARKS USING THE COMBINATION OF SIDE SCAN SONAR AND SUB-BOTTOM PROFILER Riyatna, Rifki Ade
Journal of Marine-Earth Science and Technology Vol. 3 No. 3 (2022): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v3i3.618

Abstract

It should be suitable for direct inclusion in abstracting services and should not normally be more than 300 words. Geohazards assessments are important before any engineering activity as they could block facilities and cause millions of dollars in losses. Pockmark as geohazards is often observed on the seabed with various amounts, especially on the clayey seabed sediments. Pockmarks indicate that the gas escapes from below the seabed. Pockmark may cause the jack-up rig to be slipped, pipeline free-span, and even blow out while drilling if it has a gas trap below. Side scan sonar and sub-bottom profiler as the geophysical method using acoustic wave can be used to investigate the active pockmarks. By using these two datasets, the distribution of active and inactive pockmarks can be achieved properly. So that hazards that may occur in engineering activities in the future can be prevented.
DESIGN OF AN EYE CLINIC SHIP WITH A HYBRID ELECTRIC ENERGY SOURCE FOR THE NUSA TENGGARA ISLANDS Triaditya, Charis Febriyan; Nasirudin, Ahmad
Journal of Marine-Earth Science and Technology Vol. 3 No. 2 (2022): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v3i2.622

Abstract

The World Health Organization reports that cataracts are responsible for up to 77.7% of visually impaired individuals in Southeast Asia, with Indonesia having the largest population of such individuals. Cataracts can grow faster in areas exposed to much exposure to ultraviolet rays, such as the Nusa Tenggara Islands, which cover 3 provinces, namely Bali, West Nusa Tenggara (NTB), and East Nusa Tenggara (NTT). The availability of ophthalmologists in NTB and NTT is still lacking. One ophthalmologist serves 261,969 people in NTB and 871,510 people in NTT. This condition contrasts the target distribution of ophthalmologists according to the 2017-2030 Roadmap for Management of Visual Impairment in Indonesia. The development of the shipping industry has had a negative impact on world carbon dioxide (CO2) emissions. The use of a multi-energy hybrid system is believed to be able to effectively reduce energy consumption and emissions from ships. So, in this study, an innovation in the design of an Eye Clinic Vessel with a hybrid electric energy source was designed using the Spiral Design method. This paper aims to obtain operational patterns, payload, main dimensions, technical calculations, lines plan, general arrangements, safety plans, and 3D models. The ship will serve 14 areas with a ratio of ophthalmologists with a population of more than 1:250,000. Two ships will be built, which will be divided into 2 routes, namely the North Route and the South Route. Each area will be served for one week, so 1 round trip of the Eye Clinic Ship takes around 52 days. This ship has a payload in the form of a minimum deck area for clinical facilities of 228.2 m2 and can accommodate 25 patients with a length overall (Loa) of 38.27 m; Width (B) 10 m; Height (H) 3 m; Draft (T) 1.8 m; and Service Speed (Vs) 13 knots. The ship uses 86 units of solar panels with 120 batteries to store electrical energy. This solar panel can save fuel usage up to 54%.
STUDY OF FAST PATROL BOAT MODELS WITH AND WITHOUT TUNNELS ON THE EFFECT OF RESISTANCE USING COMPUTATIONAL FLUID DYNAMICS S, Sutiyo; Munazid, Ali; Poundra, Gde A. Prabhawatya; Suwasono, Bagiyo
Journal of Marine-Earth Science and Technology Vol. 4 No. 1 (2023): April
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i1.586

Abstract

Indonesia as an archipelago countries demand modern boats for marine security, resulting in a surge in the development of past patrol vessels. The investigation in this study focused on designs with and without a tunnel at the bottom to determine which design provided the least resistance. CFD offer realistic findings for comparing the problems encountered by two distinct kinds of fast patrol boats. The computation the use of no tunnel, the use of a tunnel on fast patrol boat reduced resistance by an average of 5.4%. According to the results of the CFD simulations, using a tunnel may greatly reduce the high pressure at the bottom in interactions with the flow of water. The utilization of using tunnel is a solution that may be employed more successfully for fast patrol boat operation
MICROPLASTIC CHARACTERISTIC FOUND IN GASTROINTESTINAL TRACT OF PELAGIC AND DEMERSAL FISHES IN TUBAN, EAST JAVA Hidayati, Dewi; F, Fauziah; A, Aunurohim; Ashuri, Nova Maulidina; Setiawan, Edwin; Mulyadi, Yeyes; Syahroni, Nur; Joesidawati, Marita Ika; S, Suwarsih
Journal of Marine-Earth Science and Technology Vol. 4 No. 1 (2023): April
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i1.648

Abstract

Regular monitoring of microplastics contamination in marine biota have been concerned in the world, since its tiny size can be swallowed direct or indirectly and lead health problems. Tuban waters is the one of Indonesia's coastal and marine fisheries areas with high risk of microplastic pollution due to their highly anthropogenic activities. We investigated the microplastic in the digestive tracts of pelagic and demersal fishes in Tuban sea waters.  Microplastic in fish sample guts were observed under microscope and the type of polymer were examined using FT-IR. This study reveals that number of microplastic in digestive tract of pelagic fishes were higher than demersal fishes. The dominant form was fiber (62%) with black color and dominant size ranging from 100-500 um (72%). The types of polymers found were polyethylene and polyamide.
DESIGNING A BOAT HOTEL (BOTEL) FOR MARINE TOURISM ON TABUHAN ISLAND, BANYUWANGI REGENCY, EAST JAVA H, Hasanudin; Nasirudin, Ahmad; Saputra, Aditya Dwi
Journal of Marine-Earth Science and Technology Vol. 4 No. 1 (2023): April
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i1.675

Abstract

Tabuhan Island is one of the tourist islands in Banyuwangi Regency, which in 2020 was proclaimed by the Banyuwangi Regency government to become an international tourist destination. One of the efforts needed to make an international-class destination is to complete tourist objects with good infrastructure. One of the infrastructures that need to be completed is resorts and hotels. Design of Boat Hotel Catamaran (Botel Catamaran) is innovated with facilities equivalent to a 3-star hotel following the Ministry of Tourism and Creative Economy standards. This selection uses general dimension design parameters, which are then used in extensive travel and Botel facilities. Based on the calculations, the converted resistance of the engine has met the required power of 156 Hp. In addition, the calculation of the displacement-weight difference also showed a result of <9%, meeting the small ship margin requirement. The trim calculation also met SOLAS regulations with a result of 0% LWl < trim < 0.5% LWl. The freeboard calculation also met NCVS regulations with a result of Fb<(H-T). The tonnage calculation showed GT<500 GT, allowing the application of NCVS regulations. Finally, the comfort calculation (MSI) met the applicable ISO regulations. With these standardized calculation results, the engine is expected to operate optimally and safely. It was found that this ship has the final main dimensions, namely LoA = 29.26 m; Lpp = 28 m; B = 11.5 m; Height = 4 m; T=1.1m; B1 = 2.77; S = 6 m2 with a total of 6 rooms with a size of 30 m2 each and has been equipped with a restaurant and lounge. Then, the outline plan, general plan, and 3D model are drawn.
DIMENSIONAL ANALYSIS AND EXPERIMENTAL DESIGN FOR PREDICTING THE CALCULATION OF THE VALUE OF THE TORQUE COEFFICIENT ON PROPELLER B-SERIES, CASE STUDY OF B3-50 AND B5-80 Adietya, Berlian Arswendo; Indiaryanto, Mahendra; S, Sutiyo; Kusuma, Cahya
Journal of Marine-Earth Science and Technology Vol. 3 No. 3 (2022): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v3i3.581

Abstract

Experimental design is a fairly old method of statistically analyzing an experimental prediction. This is used to replace a fairly old system as well, namely in the form of a trial and error method. Because with this method the response results approach from a study can be predicted statistically. In this study, we will calculate some torque values of a propeller on a displacement ship type. Where the ship's operational displacement ship runs on a Froude number below 0.25, for that the Wageningen B-series propeller type is very suitable for this ship. Furthermore, dimensional analysis is carried out with variables that affect propeller performance and uses multivariate combination calculations. The results of the study show the regression equation between the KQ values of the B-series propeller data and the regression formula with the equation Y = 0.9916x + 0.000835 with the value of R2 being 0.9931. so we try to apply an experimental design method to be validated with the polynomial results of the B-series propeller on blades 3 to 6, so that the statistical method of this experimental design is up-to-date in propulsion design calculations.
EFFECT OF CATAMARAN HULL TYPE ON OCEAN WASTE COLLECTION BEHAVIOR Sugianto, Erik; Zamzami, Rifqi Akmal; Winarno, Arif; Prasutiyon, Hadi
Journal of Marine-Earth Science and Technology Vol. 3 No. 3 (2022): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v3i3.590

Abstract

In this paper an attempt has been made to assess how effective waste-collecting use catamaran ship with conveyor in the front. Numerical investigation based on Reynolds Averaged Navier Stokes (RANS) for predicting the flow pattern characteristics, velocity contour, and ship resistance. The focus of the present study is the impact of catamaran ship hull front shape on waste collection in calm water through the numerical methods. The three variations of the front of the hull used are symmetrical hull type, inner flat, and outer flat. It is done using speed variations of 1 to 4 knots. The results show inner flat hull catamaran has the smallest total resistance value than others. In addition, analysis of the flow pattern in front of catamaran shows that outer flat hull catamaran is the easiest to make waste closer to conveyor. From analysis of velocity contours shows that outer flat hull catamaran also has fastest to make the waste close to conveyor.
SHIP LIGHTWEIGHT ESTIMATION AT CONCEPT DESIGN STAGE: CASE OF INDONESIA SINGLE ENDED RO-RO FERRIES Dewanto, Christoforus Chandra; Nasirudin, Ahmad
Journal of Marine-Earth Science and Technology Vol. 3 No. 3 (2022): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v3i3.697

Abstract

In recent years there have been many crossing vessels, especially those designed and built domestically. At the concept design stage, designers generally use the parent ship design method to determine the main dimension by taking one example of a reference ship with specifications close to the owner's requirements. However, this will be an obstacle if the existing ship specifications are unavailable, so designers must be able to perform initial calculations, especially predictions of the Lightweight (LWT). This paper introduces empirical formulas that utilize regression analysis to estimate LWT of Indonesia Single Ended Ro-Ro ferries. The formula of LWT based on Gross Tonnage (GT) requirements are presented.
INTEGRATION ANALYSIS OF DRONE MULTI SENSOR-GNSS-LIDAR-CAMERA FOR 3D MAPPING (CASE STUDY: PT GARAM, PAMEKASAN, MADURA) Imani, Daud Wahyu; Cahyadi, Mokhamad Nur; Farid, Imam Wahyu; Mardianto, Ronny
Journal of Marine-Earth Science and Technology Vol. 4 No. 1 (2023): April
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i1.699

Abstract

Every year salt was carried out by PT Garam twice whereas the previous process used the method of terrestrial and manual calculations with sacks. Therefore, a map of salt production is needed using the Global Navigation Satellite System (GNSS) and Inertial Measurement Unit (IMU) sensor navigation system to increase the data's accuracy level. Unmanned Aerial Vehicle applications for the purpose of obtaining geometric documentation results and for capturing textures that characterize object structures. (Adamopoulos, 2020). LiDAR can classify based on the number of image acquisitions processed in the software, utilizing photogrammetric, and structural science principles from Motion technology. (Fernández, Hernandez et.al 2015) LiDAR Acquisition process that enables the creation of point clouds, three-dimensional models, and Digital Surface Models with high accuracy. (Barba, et al. 2019). A three-dimensional model makes it easy for users to choose a virtual position on the map, has good accuracy in interpreting the map, and displays a more real shape. LiDAR has a disadvantage in the form of coordinate data positions that have local references. (Cahyadi., et al. 2019). Unmanned Aerial Vehicle (UAV) technology has the advantage of efficiency in the cost and time of data collection. These researchers use multi-sensor technology GNSS, LiDAR, and Drones to map the stockpile of salt on open land and in warehouses. makes it easy to calculate the area of salt land and calculate the volume of salt production. This was done for PT GARAM to meet the community's needs and monitor the amount of salt production. This data can be used as a reference for digital asset inventory and the system can be applied to optimize the salt industry. The drones used in this study are the DJI Matrice 300 and the Low-Cost Drone Tarot Iron Man 650. Both types of drones are used to measure land and salt volume. The end product of the research is in the form of data generated in the form of a point cloud to calculate the salt stockpile volume and the elevation level of the salt land area
IDENTIFICATION OF GROUNDWATER POTENTIAL USING GEOGRAPHIC INFORMATION SYSTEMS AND REMOTE SENSING (CASE STUDY: MOJOKERTO REGENCY) Sulle, Beata Alpha Christina; Sunaryo, Dedy Kurnia; Yulianandha, Adkha
Journal of Marine-Earth Science and Technology Vol. 4 No. 1 (2023): April
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v4i1.700

Abstract

The impact of the drought problem in Mojokerto Regency resulted in thousands of people having access to clean water. So, it is necessary to plan the utilization of groundwater resources well. Therefore, more serious handling is needed in an effort to overcome the problem of groundwater supply. One of them is the availability of groundwater potential maps. This study aims to determine the identification of aquifer potential and groundwater potential in Mojokerto Regen cy in 2020. This research uses SPO T - 7 satellite imagery to see vegetation density using the NDVI method and uses 5 parameters, namely rainfall, soil texture, rock type/geology, slope, and land use. This study used the AHP method in determining the priority weight value of each parameter. Based on the results of the study, the results were obtained with 3 classifications with the largest area being an area with mode rate groundwater potential of 52,621.285 Ha and the smallest area being an area with low groundwater potential of 2,426.327 Ha. Previous research identified groundwater potential using the NDVI method with Landsat 8 imagery which has a resolution of 30 meters. Therefore, this research is expected to produce better vegetation density by using SPOT-7 imagery to obtain more detailed groundwater potential, because the resolution of the image SPO T -7 is 6 meters. So that this research can be considered in efforts to process the potential of groundwater resources in Mojokerto Regency

Page 4 of 7 | Total Record : 68

 2   3   4   5   6 

Filter by Year

2020 2025


Reset
Filter By Issues
All Issue Vol. 6 No. 1 (2025): April Vol. 5 No. 3 (2024): December Vol. 5 No. 2 (2024): September Vol. 5 No. 1 (2024): April Vol. 4 No. 3 (2023): December Vol. 4 No. 2 (2023): September Vol. 4 No. 1 (2023): April Vol. 3 No. 3 (2022): December Vol. 3 No. 2 (2022): September Vol. 3 No. 1 (2022): April Vol. 2 No. 3 (2021): December Vol. 2 No. 2 (2021): September Vol. 2 No. 1 (2021): April Vol. 1 No. 1 (2020): December More Issue