cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Ahmad Shulhany
Contact Email
ahmad.s@untirta.ac.id
Phone
+62254-376712
Journal Mail Official
teknika@untirta.ac.id
Editorial Address
Jl. Jendral Sudirman KM 03, Cilegon 42435
Location
Kab. serang,
Banten
INDONESIA
Teknika: Jurnal Sains dan Teknologi
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 1693024X     EISSN : 26544113     DOI : http://dx.doi.org/10.36055/tjst
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
Teknika: Jurnal Sains dan Teknologi merupakan jurnal peer-reviewed dalam Bahasa Indonesia di bidang keteknikan, diantaranya bidang teknik sipil, bidang teknik mesin, bidang teknik industri, bidang teknik kimia, bidang teknik metalurgi, dan bidang teknik elektro.
Arjuna Subject : -
Articles 318 Documents
 28   29   30   31   32 
Factors that influence the implementation time of bridge projects Sholihin, Rohmat Agus; Suroso, Agus; Amin, Mawardi
Jurnal Teknika Vol 20, No 1 (2024): Available Online in June 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i1.24552

Abstract

Delays are common in project implementation, even in bridge construction projects. It is important to analyze the causes of these delays so that service providers and construction parties can take appropriate measures to overcome the problem. These measures can help reduce the costs associated with delays. The research aims factors that influence the performance of bridge project implementation times, and to find alternative solutions to resolve these factors. The research uses a quantitative method. Primary data is obtained through questionnaires distributed to respondents among bridge construction practitioners on three predetermined research objects: Desari, Cisumdawu, and Cijago toll road projects sections 2-3. The research data is processed using JASP software. After analyzing the implementation methods, budget availability, and engineering risk variables, it is found that engineering risk is the most dominant factor affecting the performance of bridge project implementation time, with a percentage of 61.68%.
Analysis of vehicle emissions due to traffic on the Tambun Bungai Street Palangkaraya Lesmana, Rudy Yoga; Akbar, Reza Zulfikar; Faradila, Amelia
Jurnal Teknika Vol 20, No 1 (2024): Available Online in June 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i1.22674

Abstract

Tambun Bungai street is located between Ahmad Yani and Diponegoro street. It has a significant level of congestion due to the presence of several schools, view place of worship and District Public Hospital. Motor vehicle activity produces exhaust gas emissions that cause air pollution resulting in a decrease in air quality. The purpose of this research to determine the magnitude of motor vehicle exhaust gas emissions in Tambun Bungai street and compare the results of the analysis of total vehicle emissions with permitted air quality standards. The methods are traffic counting survey and spot speed survey, then the analyze using an empirical calculation. Based on the results of the analysis it is known that the largest emissions of light vehicles occurring on Tambun Bungai street are CO of 1783,15 ppm and HC of 229,95 ppm at 07.45-08.00, PM of 7,14  and NOx of 29,68 pphm at 07.00-07.15. Then for the largest emissions of heavy vehicles occurred on Tambun Bungai street are CO of 0,63 ppm, HC of 0,28 ppm, PM of 257,80  and NOx of 82,71 pphm at 07.00-07.15. Overall the result of emissions total that compared to permitted quality standard shows that the results of the analysis of each type of pollutant exceeded the permissible air quality standards. These results can illustrate the amount of pollution that occurs and has exceeded the specified threshold so that the government can make policies that can be minimized it.
The effects of the community-driven development concept on the success implementation of flood management construction in the Ciujung Basin Wibowo, Yudistira; Suroso, Agus; Hidayat, Acep
Jurnal Teknika Vol 19, No 2 (2023): AVAILABLE ONLINE IN NOVEMBER 2023
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v19i2.22956

Abstract

The flood-prone area in Serang Regency ranges to 22,617.49 hectares (ha), the trigger factor for flooding in Serang Regency is the high rainfall ranging from 200 mm – 400 mm in the rainy season. The local government of Serang Regency handles floods with non-structural methods. The method applied is flood handling with the concept of community-driven development. CDD is a community-based development concept with a process of resource development and direct decision-making by community groups. The Serang district government has succeeded in minimizing flooding with the concept of CDD in the Ciujung watershed area, it needs to be improved in terms of human resources, community participation, socio-culture, quality-quantity and budget. Analysis of the effect of the application of the CDD concept on the success rate of flood control construction using qualitative descriptive methods. The success rate of implementing the CDD concept in the implementation of flood control construction is influenced by socio-cultural aspects with a dominance rate of 28,476%. The benefits of this research are to increase the application of non-structural methods with the concept of CDD and become a reference by stakeholders in the implementation of community-based development, for that it is necessary to reorganize the planning, implementation and maintenance stages based on local wisdom and community aspirations.  
Design of automatic control system on pakcoy plant parameters in nutrient film technique hydroponic media Praptodiyono, Supriyanto; Saraswati, Irma; Kusuma, Sidiq Tri
Jurnal Teknika Vol 20, No 1 (2024): Available Online in June 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i1.23142

Abstract

Technology in agriculture is always developing, one of which is cultivation using hydroponic media. One of the hydroponic cultivation techniques is the hydroponic nutrient film technique (NFT). The hydroponic cultivation of the nutrient film technique is carried out by placing plant roots in a shallow and circulating layer of water. One of the plants that can be used in NFT hydroponic media is the pakcoy mustard plant. During the growth period of pakcoy mustard in the hydroponic nutrient film technique media, parameters such as air temperature, water temperature, water level, water pH, and plant nutrients will greatly affect. The optimal air temperature during the growth of mustard greens is 22-33˚C, water temperature is 25-28˚C, water level is 25-35 cm or depending on the tank used, water pH is 6-7, and plant nutrition is 900-1400 PPM. If the parameter conditions in the hydroponic greenhouse are not in accordance with the optimal limits, the growth of the mustard greens will be stunted or die. In this study an automatic control system was designed using the WEMOS Mega 2560 microcontroller as the control center, DHT22 sensor, MAX6675 sensor, HC-SR04 ultrasonic sensor, PH-4502C sensor, analog TDS sensor, misting pump, peltier, water pump, and mini DC pump. . The results of this study are in the form of sensor reading values consisting of air temperature, water temperature, water level, water pH, and plant nutrients which have been transferred to the microcontroller so that they can be processed to be displayed on the LCD screen and if the sensor reading values do not match the optimal limits then the microcontroller will activate the misting pump, peltier, water pump, and mini DC pump automatically. With the automatic control system, the condition of these parameters can be maintained at optimal limits
Application of activated carbon/ TiO2 composite for ammonia degradation from leaching process in methyl iso cyanate production Syaputra, Muhammad Rifki; Hamdi, Hilal; Permana, Sidik Maulana; Arlofa, Nina; Elysabeth, Tiur
Jurnal Teknika Vol 20, No 1 (2024): Available Online in June 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i1.22609

Abstract

The wastewater in the washing process in Methyl Iso Cyanate production line contains ammonia which causes air pollution. Therefore, the ammonia waste processing system is needed that can degrade ammonia so that its concentration decreases and reduces the pollution. Photocatalytic degradation of ammonia is an attractive technology because of its easy operation, high efficiency, low cost, and low secondary pollutants. The photocatalytic process produces hydroxyl groups from the decomposition of water which can oxidize ammonia into nitrate and nitrogen gas. This research aims to process ammonia waste by combining adsorption and photocatalysis processes to obtain better performance in degrading ammonia. The research began with the preparation of activated carbon as an adsorbent and the synthesis of activated carbon-TiO2 composite material. Activated carbon is heated at 500º C for 6 hours for the activation process. Composite material synthesis is carried out using the slurry method. Activated carbon performance testing was carried out at weight variations of 10, 20 and 30 gram. Measurement of ammonia concentration was carried out using the spectrophotometry method. Optimum results were obtained at an activated carbon weight of 30 gram with a reduction in ammonia concentration of 1.01%. TiO2 as much as 5% of the weight of activated carbon (30 gram) is dissolved in ethanol and activated carbon is added to obtain a composite material. In the composite material performance test, a maximum reduction in ammonia concentration of 45% was obtained using the ultrasonic stirring method.
Determine peak hour factor (PHF) based on road type and peak hour time on arterial roads for capacity analysis in East Surabaya Fatikasari, Aulia Dewi; Alfiansyah, Achmad Dzulfiqar; Rizal, Rikki Sofyan; Wardhani, Primasari Cahya
Jurnal Teknika Vol 19, No 2 (2023): AVAILABLE ONLINE IN NOVEMBER 2023
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v19i2.21918

Abstract

The peak hour factor (PHF) is one of the important factors in planning a road. This factor is used to predict the traffic volume in the planned year of a road. So calculating this factor is very important in planning road capacity so that a road can serve traffic flows well during its design life. The Peak hour factor (PHF) value will vary for each region, each type of road, and each peak hour depending on the traffic flow on that road section. East Surabaya is an industrial and office center area so there are frequent fluctuations in traffic flow at certain hours. This research aims to analyze the Peak hour factor (PHF) value on the arterial road network system in East Surabaya based on road type and peak hour time. The methods used are traffic volume surveys, peak hour volume (PHV) calculations, peak hour factor (PHF) analysis, and residual capacity analysis. The results obtained from this research are that each road section has a different peak hour volume (PHV) time depending on the volume of traffic passing through that road. Apart from that, the type of road and the time peak volume occurs will differentiate the peak hour factor (PHF) value on a road section. Overall, the peak hour factor (PHF) value for arterial roads in East Surabaya with road type 6/2 D is in the range of 0.76-0.97 with an average of 0.91 and road type 4/2 in the range of 0.89 – 0.95 with an average of 0.93. 
Prediction of fire evacuation in high-buildings junior high school using discrete event simulation Firmansyah, Faisal Ibnu; Shofa, Mohamad Jihan; Winarno, Heru
Jurnal Teknika Vol 20, No 1 (2024): Available Online in June 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i1.22671

Abstract

Indonesia is included in the category of countries with high disaster risk, including the risk of fire disasters. However, the lack of public awareness makes planning risks greater, such as physical losses, minor injuries, and even fatalities. Therefore, good mitigation is needed to reduce this risk. The research aims to propose disaster mitigation for fires in high-buildings. One thing that can reduce casualties is evacuation. The success of an evacuation can be seen from the evacuation time. The research locus is one of the elementary schools in Serang City with a two-story building. The Discrete Event Simulation (DES) approach is used when experiencing a particular event. The data taken is data on the number of students and teachers, data on evacuation times using stairs or vertical evacuation methods with a certain distribution according to actual data. There are 2 scenarios used in the simulation, namely (1) evacuation using the available stairs, and (2) evacuation using a combination of stairs for men and vertical evacuation tools for women. The evacuation system using stairs in the school building was not effective because it took 5.17 minutes, while the speed at which the fire spread was 4.30 minutes. Evacuation using scenario 2 - a combination of stairs and vertical evacuation chute - resulted in a faster evacuation time of 3 minutes. Thus, the results obtained provide a suggestion for carrying out evacuation using a combination of using stairs and using a vertical evacuation chute.
Proposed management of nata de coco production waste with green productivity (Case study in UKM Usaha Tani Lebak) Friskayani, I Gusti Ayu; Herlina, Lely; Muharni, Yusraini; Kurniawan, Bobby; Ilhami, Muhammad Adha; Anggraeni, Shanti Kirana
Jurnal Teknika Vol 20, No 1 (2024): Available Online in June 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i1.22680

Abstract

UKM Tani Lebak is an industry that processes coconut water into nata de coco. During production, water use could be more efficient. Apart from that, there are also rejected products and production waste that pollute the environment. So, based on this, it is necessary to measure and evaluate productivity and environmental performance. This research aims to determine the value of productivity and the green productivity index (GPI) and to propose alternative improvement solutions to increase productivity and reduce environmental impacts. The method used to solve this problem is green productivity, starting with calculating material balance during production, then creating green value stream mapping and calculating GPI. The calculation results show that the productivity value moved from 1.335 to 1.336. UKM Tani Lebak can use three alternative solutions to increase productivity while reducing environmental impacts. The best alternative is to combine the neutralization and washing processes, which produces a GPI from 0.6882 to 0.927. This value shows a better ratio of productivity to environmental impact.
Utilization of GIS in the development of marine tourism in the provincial strategic tourism area (KSSP) of Carita Aryono, Gagah Dwiki Putra; Laksana, April; Sukmawan, Irwan; Huda, Miftahul
Jurnal Teknika Vol 20, No 2 (2024): Available Online in November 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i2.28789

Abstract

The development of marine tourism is crucial as it holds great potential to boost the economy, particularly in coastal areas and small islands. This is related to the potential for new income sources, economic growth, environmental awareness, cultural heritage preservation, and the promotion of infrastructure development. The purpose of this study is to design a strategy for the development of marine tourism in the Carita Strategic Tourism Area (KSPP) using GIS, in order to produce a well-structured and directed marine tourism development plan. This research uses a mixed-method approach, combining quantitative and qualitative methods, where data were collected through literature reviews, surveys, observations, and in-depth interviews with tourism stakeholders in the Carita KSPP. The research findings show that Matahari Beach has moderate attractiveness with a classification value of 660 and moderate accessibility with a classification value of 300. Karang Sari Beach has moderate attractiveness with a classification value of 540 and moderate accessibility with a classification value of 300. Meanwhile, Pasir Putih Carita Beach has high attractiveness with a classification value of 930 and high accessibility with a classification value of 300
Molecular docking of seagrass extracts: investigating the interaction with lipoate protein ligase from enhalus acoroides Rochmat, Agus; Kamil, Kintan NR; Syawalia, Nabila R; Yulvianti, Meri; Bukhari, Ahmad; Hariri, Ahmad; Suaedah, Suaedah; Ganiadi, Mochamad
Jurnal Teknika Vol 20, No 2 (2024): Available Online in November 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i2.30833

Abstract

Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis and has become a serious global health issue due to increasing antibiotic resistance. Genetic variations in this bacterium enable the emergence of drug-resistant strains, necessitating the search for more effective alternative therapies. This study evaluates the potential of Enhalus acoroides metabolites as inhibitors of the Lipoate Protein Ligase (LipB) enzyme, which plays a crucial role in the fatty acid synthesis of M. tuberculosis. The research was conducted through in silico analysis, including Lipinski's Rule of Five screening, ADMET pharmacokinetic modeling, compound identification using GC-MS, and molecular docking using PyRx, with interaction analysis performed via Biovia Studio. Three tested compounds—Lanosterol, N,N'-1,4-phenylenebis Benzamide, and Astragalin—exhibited significant binding affinity to the 1W66 receptor, with binding energies of -7.5 kcal/mol, -6.8 kcal/mol, and -7.8 kcal/mol, respectively. These values surpass those of the positive controls, Rifampicin (-7.0 kcal/mol) and Streptomycin (-6.5 kcal/mol), indicating the potential of these compounds as new anti-TB drug candidates. This study confirms that Enhalus acoroides metabolites have therapeutic potential in TB treatment, particularly in addressing antibiotic resistance. Further in vitro and in vivo studies are required to validate their pharmacological efficacy.TRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian //  TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//

Page 30 of 32 | Total Record : 318

 28   29   30   31   32 

Filter by Year

2011 2025


Reset
Filter By Issues
All Issue Vol 21, No 1 (2025): June 2025 Vol 20, No 2 (2024): Available Online in November 2024 Vol 20, No 1 (2024): Available Online in June 2024 Vol 19, No 2 (2023): AVAILABLE ONLINE IN NOVEMBER 2023 Vol 19, No 1 (2023): Available Online in June 2023 Vol 18, No 2 (2022): Available Online in November 2022 Vol 18, No 1 (2022): Available Online in June 2022 Vol 17, No 2 (2021): Available Online in November 2021 Vol 17, No 1 (2021): Available Online in June 2021 Vol 16, No 2 (2020): Edisi November 2020 Vol 16, No 1 (2020): Edisi Juni 2020 Vol 15, No 2 (2019): Edisi November 2019 Vol 15, No 1 (2019): Edisi Juni 2019 Vol 14, No 2 (2018): Edisi November 2018 Vol 14, No 1 (2018): Edisi Juni 2018 Vol 13, No 2 (2017): Edisi November 2017 Vol 13, No 1 (2017): Edisi Juni 2017 Vol 12, No 2 (2016): Edisi November 2016 Vol 12, No 1 (2016): Edisi Juni 2016 Vol 11, No 2 (2015): Edisi November 2015 Vol 11, No 1 (2015): Edisi Juni 2015 Vol 10, No 2 (2014): Edisi November 2014 Vol 10, No 1 (2014): Edisi Juni 2014 Vol 8, No 2 (2012): Edisi November 2012 Vol 8, No 1 (2012): Edisi Juni 2012 Vol 7, No 2 (2011): Edisi November 2011 Vol 7, No 1 (2011): Edisi Juni 2011 More Issue