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Journal of Green Science and Technology
Published by Universitas Swadaya Gunung Jati
ISSN : 25981277     EISSN : 26213966     DOI : http://dx.doi.org/10.33603/jgst
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
Journal of Green Science and Technology (JGST) published since 2018 by Faculty of Engineering Universitas Swadaya Gunung Djati (UGJ) Cirebon with p-ISSN 2598-1277 and e-ISSN 2621-3966. JGST is a peer reviewed journal published triannualy in January, April, and September.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 121 Documents
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ANALYSIS OF CONSTRUCTION MANAGEMENT MAIN ROAD IN THE CISUMDAWU STA.21+200 – STA.22+825 TOLL ROAD PROJECT Prasetio, Iko; Anwar, Saihul
Journal of Green Science and Technology Vol 4, No 1 (2020): Journal of Green Science and Technology, Vol.4 No.1 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i1.2927

Abstract

Construction management is an attempt to use limited resources efficiently, effectively and timly in completing a project that has been palnned. There are 3 kinds of basic functions of construction management including planning, implementation, and control. Of three of these activities to control the resources on aproject that includes worker, equipment, material, money, and method.The research method used was qualitative research, as a way of collecting data on the study is how the study of the literature, interviews and direct observation in field. And this method is a method that is done to get a foundation theory in analyzing data, namely the analysis calculation of the volume of material, analysis of labor, analysis tool, method, method of Bar Chart S Curve and Critical Path Method.The location of the studies reviewed were Main Road in the Cisumdawu STA.21+200 ? STA.22+825 Toll Road Project , located on Pamatutan Hamlet Mulyasari ? Pasir Hamlet Margamukti, Sumedang. The results of this research is the budget plan costs  completed the construction of Main Road in the Cisumdawu STA.21+200 ? STA.22+825 Toll Road Project till the final stage more or less cost is Rp. 121.488.578.000 and analysis of the Critical Path Method (CPM) estimated completion of the Main Road in the Cisumdawu STA.21+200 ? STA.22+825 Toll Road Project takes 58 weeks (406 days).Keywords: Construction Management, Bar Chart, S Curve, Critical Path Method. 
THE EFFICIENCY OF CRUDE CORROSION INHIBITOR AND GAS CORROSION INHIBITOR BY USING CARBON STEEL 1018 WITH POLARIZATION METHOD ibrahim, puji astuti
Journal of Green Science and Technology Vol 4, No 2 (2020): Journal of Green Science and Technology, Vol.4 No.2 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i2.3467

Abstract

Carbon Steel 1018 is a low carbon steel having a carbon content (C) of 0.14-0.20% (<0.30% C). Low carbon steel is commercially known as mild steel. Corrosion is one way to prevent corrosion caused by the environment. Corrosion inhibitor are taken between the Crude Corrosion Inhibitor and Gas Corrosion inhibitor on Carbon Steel 1018 using the polarization method. Corrosion inhibitors work by making passive layers in the form of thin films or films on the surface of the material used as a barrier between metals and corrosive media. The analysis method used is polarization. Inhibition Efficiency Results obtained for Gas Corrosion Inhibitors (1A) at 10 ppm 96.86%, 20 ppm 59.74%, 30 ppm 74.48%. The Crude Corrosion Inhibitor (2A) results obtained inhibition efficiency for 10 ppm 99.57%, 20 ppm 77.69%, and 30 ppm 12.63%. The optimum value for the Gas Corrosion Inhibitor and Crude Corrosion Inhibitor is at 10 ppm at 96.86% and 99.57%. Keywords: carbon steel,crude corrosion inhibitor, corrosion , gas corrosion inhibitor, inhibitor
ANALYSIS OF PUBLIC TRANSPORT DEVELOPMENT IN METROPOLITAN CITY BASED ON ORIGIN-DESTINATION (CASE STUDY: METRO CAPSUL BANDUNG) Triyadani, Ade; Santoso, Idwan; Wibowo, Sony Sulaksono
Journal of Green Science and Technology Vol 4, No 1 (2020): Journal of Green Science and Technology, Vol.4 No.1 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i1.3017

Abstract

Development of new mode of metro kapsul as mass transportation mode in Bandung with corridor plan from Station Hall to Tegallega and return to Station Hall with plan of 19 stop station which can give contribution to congestion problem and lack of public transportation service in Bandung city. This study aims to analyze the potential of demand with the data of origin - destination of the respondent in the corridor plan of the metro capsule in order to give a description of the movement in the origin-destination matrix, in analysis for potential demand used the modal movement assumption of private vehicles, public transport and pedestrian, The location of priority shelter at the beginning of development by using multicriteria analysis while for operational analysis is calculated some variables of capsule metro operating system (headways, frequencies, etc). The result of origin-destination matrix analysis is getting potential demand of metro capsule during weekdays on-peak of 3529 pass/hour, off-peak of 2116 pass/hour. The result of location priority stop location will get 6 (six) stop location recommended in ?Stasiun Bandung, Pasar Baru, Pasar Anyar, Taman Tegallega, ITC Kebon Kelapa and Alun-Alun Bandung?. From the operational results of metro capsule, obtained frequence of 20 Unit/jam, headways 3 minutes, the number of vehicles required 8 vehicles, on weekdays and weekends when on-peak and off-peak.
ANALYSIS OF THE EFFECT AMOUNT OF PLATE, DIAMETER PORT, AND WIDTH OF COMPRESSION ON INTERCOOLER PERFORMANCE IN PT INDONESIA POWER Prastyo, Elli
Journal of Green Science and Technology Vol 4, No 2 (2020): Journal of Green Science and Technology, Vol.4 No.2 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i2.3450

Abstract

This analysis to determine the performance of the intercooler based on actual data, and the intercooler's performance against design specifications changes using the NTU method. Variable design specifications in the study are the number of plates, compressed area, and port diameter values from intercooler specifications provided by the company. The results of the inter-device performance analysis of compatibility with the specifications required by the company amounted to 99.40%. The results of the first trial of the tool specifications point the compatibility value to increase to 99.98% by increasing the number of plates from 79 to 150 plates, reducing the compressed area value from 0.47 to 0.2 m and increasing the port diameter value from 0.2 to 0,5 m. The results of the trial 2 tool specification showed a decrease to 86.51% due to changes in variable variables, by the number of plates to 25, raising the compressed plate width to 0.5 meters and increasing the port diameter to 0.6 m. The highest overall heat transfer value on May 23-24 is 346.225,37  based on actual data calculation of Intercooler effectiveness. The lowest overall heat transfer value is 346.213,29  based on data calculation it occurred on 22 May 2019.
INTEGRATING FLOOD RISK INTO URBAN PLANNING IN INDONESIA Gumelar, Novid
Journal of Green Science and Technology Vol 4, No 1 (2020): Journal of Green Science and Technology, Vol.4 No.1 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i1.3147

Abstract

Flood is the disaster with the highest frequency occurrence in the world resulted in the greatest loss of both material and nonmaterial. This loss is exacerbated by the incidence of floods that occur in urban areas that have large population and asset values. Efforts to reduce the risk of urban flood disaster have been done, but this effort is still sectoral. This article examines how flood risks are integrated into urban spatial planning in Indonesia. The integration of floods in Indonesia is carried out with an environmental assessment approach in the development plan, with a Strategic Environmental Assessment/SEA (KLHS) attached to each development plan.
ANALYSIS QUALITATIVE ADDITION OF ADDITIVE SUBSTANCE TO PAPER MAKING PROCESS IN PAPER MACHINE 12 PT. X - KARAWANG ON PRODUCT QUALITY Solikha, Dian Farkhatus
Journal of Green Science and Technology Vol 4, No 2 (2020): Journal of Green Science and Technology, Vol.4 No.2 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i2.3460

Abstract

Paper is a tangible item of thin sheets which can be torn, rolled, folded, glued and crossed out. Paper is made to meet the needs of a very diverse life. The paper industry is one of the forest products industries which has a very important role in human life. There is almost no human activity that does not utilize this industrial commodity. In the process of making paper, in addition to the availability of Raw Materials there is also the use of additives. Additives are ingredients that are added to obtain certain desired characteristics of paper products. Some factors that influence the process of making paper are raw material, machine cleanliness, machine performance, human factors and additives. Additives are the main factors that influence the success of the papermaking process. There are two types of additives used in Paper Machine 12 PT.X-Karawang, namely functional additives and controlling additives. The effect of the addition of additives on Paper Machine 12 PT.X-Karawang namely, Dry Strength can increase the strength of the paper when used in dry conditions, Sizing Agent (Internal Sizing) functions to control liquid penetration, Surface Sizing Agent (Surface Sizing) functions to level the surface of the paper, Filler as filler, Dyes can give color to paper, OBA serves to increase the brightness of paper, Biocide functions to inhibit bacterial growth, Defoamer functions to prevent foam formation and Retention Aid can increase fiber retention.Keyword: Controlling Additives, Functional Additives, Paper, Paper Machine
RIVER CLIFF REINFORCEMENT EFFORTS BY APPLICATION OF COMBINATION OF DAM STONE, GABION, TETRAPOD, AND BAMBOO FLOW ALIGNER Wibowo, Dian Eksana; Purwantoro, Didik; Nayono, Satoto Endar; Wardhana, Indra Bayu; Prabowo, Yoga Bayu
Journal of Green Science and Technology Vol 4, No 1 (2020): Journal of Green Science and Technology, Vol.4 No.1 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i1.3152

Abstract

The purpose of research : (1) determine the ratio between the combination of retrofitting tetrapod-bamboo alignment-tetrapod   (FP1); bamboo flow aligner-tetrapod-bamboo flow aligner (FP2); Check Dam Stones-Gabion-Check Dam Stones (FP3); Gabion-Check Dam Stones-Gabion (FP4)? (2) The effectiveness of the combination of strengthening the tetrapod-bamboo aligner-tetrapod   (FP1); bamboo flow aligner-tetrapod-bamboo flow aligner (FP2); Check Dam Stones-Gabion-Check Dam Stones (FP3); Gabion-Check Dam Stones-Gabion (FP4)?Using the experimental method by creating a Labolatorium scale river model. Testing using clay and sand. The test model is a cliff without reinforcement and cliff with a combination of reinforcement between tetrapods; bamboo flow aligner; check Dam stones and Gabions. Testing by flowing water for 180 minutes/3 hours with a constant discharge of 7.07 liters/second, the installation of reinforcement is 51 cm apart.The results showed that (1) In general, the effect of the FP1 reinforcement installation was the variation of the combination that was considered the best in reducing scouring on the cliffs and riverbeds. (2) Variation of the combination of FP1, is more effective in reducing the scouring that occurs. At the beginning of the channel turns from STA 00-06 effectively used tetrapod installation, with scours that occur as big as -5 cm, in the middle of the STA channel 06-16 effectively using the installation of bamboo flow aligner, scours that occur as much as -1.5 cm, whereas at At the end of the turn, STA 17-24 used tetrapod installation, scouring by -3.8cm.Keyword: scouring, bamboo flow aligner, tetrapod.
ANALYSIS OF WATER SALINITY LEVEL OF FREQUENCY MOLTING IN VANNAMEI SHRIMP (LITOPENAEUS VANNAMEI) ABLATED Salsabiela, Mutiara Salsabiela
Journal of Green Science and Technology Vol 4, No 2 (2020): Journal of Green Science and Technology, Vol.4 No.2 (2020)
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i2.3436

Abstract

Media salinity is a masking factor that plays an important role in controlling the process of shrimp molting and osmoregulation. Both of them are ecophysiological factors for shrimp life, so it is necessary to know the optimum level or range of media salinity for each phase of the molting phase changes in the stage and osmoregulation phase. This study was conducted to examine the molting frequency of adult L. vannamei which was ablated and cultivated at various levels of salinity. This research was carried out for 60 days. This study uses experimental laboratory methods with a systematic randomized design (RAS) with 4 treatments and 3 replications in each treatment. The treatments tested were salinity with S1 treatments (10 ppt, 289.20 mOsm / l postmolt H2O isosmotic), S2 (15 ppt, 432.80 mOsm / l H2O initial intermolt isosmotic), S3 (25 ± 1 ppt, 725, 15 mOsm / l H2O isosmotic final intermolt) and S4 (29 ± 1 ppt, 820.10 mOsm / l H2O isosmotic molt). Data were analyzed with ANOVA. Meanwhile, the difference in effect between treatments was obtained through Duncan's multiple area test. ANOVA results showed that various levels of isoosmotic media salinity at various molting phases had an influence (p <0.05) on molting frequency. The best value of molting frequency was in the S4 treatment (29 ± 1 ppt) (close to isoosmotic molt) 10 times. In the maintenance of L. vannamei which is affixed, it should pay attention to the needs of isoosmotic media, namely media with a salinity of 25 ± 1-29 ± 1 ppt (final intermolt isoosmotic range / premolt to molt). the difference in effect between treatments was obtained through Duncan's multiple region test. ANOVA results showed that various levels of isoosmotic media salinity at various molting phases had an influence (p <0.05) on molting frequency. The best value of molting frequency is in the treatment of S4 (29 ± 1 ppt) (close to isoosmotic molt) 10 times. In the maintenance of L. vannamei which is affixed, it is better to pay attention to the needs of isoosmotic media, ie media with a salinity of 25 ± 1-29 ± 1 ppt (final intermolt isoosmotic range / premolt to molt). the difference in effect between treatments was obtained through Duncan's multiple region test. ANOVA results showed that various levels of isoosmotic media salinity at various molting phases had an influence (p <0.05) on molting frequency. The best value of molting frequency is in the treatment of S4 (29 ± 1 ppt) (close to isoosmotic molt) 10 times. In the maintenance of L. vannamei which is affixed, it is better to pay attention to the needs of isoosmotic media, ie media with a salinity of 25 ± 1-29 ± 1 ppt (final intermolt isoosmotic range / premolt to molt). The best value of molting frequency was in the S4 treatment (29 ± 1 ppt) (close to isoosmotic molt) 10 times. In the maintenance of L. vannamei which is affixed, it is better to pay attention to the needs of isoosmotic media, ie media with a salinity of 25 ± 1-29 ± 1 ppt (final intermolt isoosmotic range / premolt to molt). The best value of molting frequency is in the treatment of S4 (29 ± 1 ppt) (close to isoosmotic molt) 10 times. In the maintenance of L. vannamei which is affixed, it is better to pay attention to the needs of isoosmotic media, ie media with a salinity of 25 ± 1-29 ± 1 ppt (final intermolt isoosmotic range / premolt to molt). Keyword : Salinity, Osmoregulation, Molting, L. vannamei, Ablation. 
THE SURVIVAL OF NORTH KANOMAN CITY VILLAGE AS AN ART AND CULTURAL VILLAGE IN CIREBON CITY Jafar Mukhlis; Mira Lestira Hariani; Muhfidlatul Qira&#039;ati
Journal of Green Science and Technology Vol 5, No 2 (2021): VOL 5, NO 2 (2021): JOURNAL OF SCIENCE AND TECHNOLOGY VOL. 5 NO. 2 SEPTEMBER 202
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v5i2.6041

Abstract

Cities are the result of social interactions that form a community and produce culture. cultural resilience as a term that describes the extent to which a person's cultural strength in overcoming regional developments. Cirebon City as a City of Culture is inseparable from the history and culture of the past that form the characteristics of its own people. The City Village that still survives today is the North Kanoman Village, which is in the Kanoman Palace area. Cultural and artistic traditions are still maintained from generation to generation so that the characteristics of local wisdom are well preserved, so it is necessary to study the survival of the North Kanoman village in changing the development of a modern city. This study aims to determine the adaptation of the local wisdom of North Kanoman Village as an art and culture village in Cirebon City in an effort to maintain its existence as an art village in the midst of urban development. The output of this research is the modeling of the resilience of North Kanoman Village. The research uses a qualitative approach through qualitative descriptive analysis techniques. In this study, the method used is to use open interviews to examine and understand the attitudes, views, feelings and behaviors of individuals or groups of people. Based on the results of the study, it was found that the phenomenon of survival and adaptation methods were carried out by the North Kanoman community, this adaptation was closely related to changes in attitudes that occurred in the community. The synergy between the community and cultural leaders occurs in how to maintain culture and art for the younger generation from urban modernity and the era of digitalization. By adapting, the people of North Kanoman Village try to survive and continue their lives.Keywords: Survival, Urban Village, City Development, Local Wisdom, Arts and Culture
DETERMINATION OF THE FASTEST ROUTE FOR FIRE TRUCKS IN CIREBON CITY BASED ON DISTANCE, TIME, CONGESTION AND LAND USE Mira Lestira Hariani; Yackob Astor
Journal of Green Science and Technology Vol 5, No 1 (2021): JOURNAL OF SCIENCE AND TECHNOLOGY VOL. 5 NO. 1 MARCH 2021
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v5i1.4905

Abstract

Fire fighter performance can be represented by the speed of handling the fire case, where greatly influenced by the travel speed of the fire trucks to the fire location. This study aims to determine the fastest route for fire trucks in Cirebon City based on the travel distance, time, congestion and land use. The method used in this study is by applying the Geographic Information System (GIS) model in identifying several variables that affect the travel speed of fire trucks. In this study, several alternative routes were determined from the fire station (Harjamukti fire station and Bima fire station) to the location of fire (Harjamukti Market) and then calculated the travel time on each alternative route by considering travel distance, time, congestion and land use. The results showed that the fastest travel time for fire trucks in Cirebon City was largely influenced by the travel distance. However, in conditions of high traffic flow, a route with a longer distance but does not cross a congested road segment can produce a faster travel time when compared to a shorter route but crosses congested roads. The fastest route from the Bima fire station to Harjamukti market is route 1 (2,854 m) in the morning, route 3 (3,019 m) in the afternoon and evening. Meanwhile, the fastest route from the Harjamukti fire station to Harjamukti Market is Route 1 (2,069 m) in the morning, afternoon and evening because it has the shortest distance.

Page 5 of 13 | Total Record : 121

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