Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.13454
R. D. Rachwanto, S. Saidah, Amirullah Amirullah
Inverters with square waves and sinusoidal output signal waves have different efficiency values. The difference is very visible, especially when the inverter is used to drive an electric device that uses a motor. In a sinusoidal wave type inverter, electricity consumption will be more efficient than the use of a square wave type inverter. This study aims to determine the efficiency value of the square wave and sinusoidal inverter wave output in supplying the load. Square wave and sinusoidal inverters require a controller, the controller uses an Arduino Uno which acts as an SPWM signal generator and a square wave signal is used to drive the MOSFET with push-pulls topology. Based on the results of the inverter test to determine the efficiency, it shows that the inverter with sinusoidal output is 96.40% better, while the inverter with square wave output is only 83.34%, this test is carried out using a 50W LED lamp load.
{"title":"Implementasi Inverter Berbasis Square Wave dan Sinusoidal PWM Menggunakan Arduino Uno","authors":"R. D. Rachwanto, S. Saidah, Amirullah Amirullah","doi":"10.21107/rekayasa.v15i2.13454","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.13454","url":null,"abstract":"Inverters with square waves and sinusoidal output signal waves have different efficiency values. The difference is very visible, especially when the inverter is used to drive an electric device that uses a motor. In a sinusoidal wave type inverter, electricity consumption will be more efficient than the use of a square wave type inverter. This study aims to determine the efficiency value of the square wave and sinusoidal inverter wave output in supplying the load. Square wave and sinusoidal inverters require a controller, the controller uses an Arduino Uno which acts as an SPWM signal generator and a square wave signal is used to drive the MOSFET with push-pulls topology. Based on the results of the inverter test to determine the efficiency, it shows that the inverter with sinusoidal output is 96.40% better, while the inverter with square wave output is only 83.34%, this test is carried out using a 50W LED lamp load.","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"2016 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86644087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.14135
Didi Budiyanto, Sri Oetami Madyowati, A. Kusyairi
Milkfish is one of the fishery commodities that are in great demand by the Indonesian people, where the obstacle to production decline is disease. Therefore, to prevent disease and treat diseases that attack fish, farmers use the antibiotic Chloramphenicol. However, the use of high doses of antibiotics will cause resistance to pathogenic bacteria and the residue left in the fish's body will have a negative impact on human health who consume them such as allergies, toxicity and even cause death in anemia sufferers which can progress to leukemia. This study aims to determine the length of downtime of the antibiotic Chloramphenicol on changes in residual levels in milkfish (Chanos chanos) aged 30 days decreased to a safe limit for consumption. Residual content test using ELISA at 450 nm wave. Based on the results of the study, milkfish fed with a mixture of chloramphenicol antibiotics at a dose of 1 ppm resulted in the highest residual value of 4.6375 ppb in the first week and a decrease in residue to 0.2363 ppb for 5 weeks. The stopping time of chloramphenicol antibiotics on changes in residual levels in milkfish (Chanos chanos) aged 30 days in treatment F (Milkfish fed with a mixture of chloramphenicol at a dose of 1g/kg of feed for a week, then fed without a mixture of chloramphenicol for 5 weeks) resulted in a safe limit for consumption.
{"title":"Waktu Henti Antibotik Chloramphenicol Terhadap Perubahan Kadar Residu Pada Ikan Bandeng (Chanos Chanos)","authors":"Didi Budiyanto, Sri Oetami Madyowati, A. Kusyairi","doi":"10.21107/rekayasa.v15i2.14135","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.14135","url":null,"abstract":"Milkfish is one of the fishery commodities that are in great demand by the Indonesian people, where the obstacle to production decline is disease. Therefore, to prevent disease and treat diseases that attack fish, farmers use the antibiotic Chloramphenicol. However, the use of high doses of antibiotics will cause resistance to pathogenic bacteria and the residue left in the fish's body will have a negative impact on human health who consume them such as allergies, toxicity and even cause death in anemia sufferers which can progress to leukemia. This study aims to determine the length of downtime of the antibiotic Chloramphenicol on changes in residual levels in milkfish (Chanos chanos) aged 30 days decreased to a safe limit for consumption. Residual content test using ELISA at 450 nm wave. Based on the results of the study, milkfish fed with a mixture of chloramphenicol antibiotics at a dose of 1 ppm resulted in the highest residual value of 4.6375 ppb in the first week and a decrease in residue to 0.2363 ppb for 5 weeks. The stopping time of chloramphenicol antibiotics on changes in residual levels in milkfish (Chanos chanos) aged 30 days in treatment F (Milkfish fed with a mixture of chloramphenicol at a dose of 1g/kg of feed for a week, then fed without a mixture of chloramphenicol for 5 weeks) resulted in a safe limit for consumption.","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78393298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.14444
Agung Hadi Tamari, Amirullah Amirullah
The performance of a photovoltaic (PV) generator is strongly influenced by the intensity of sunlight hitting the solar module. Thus it takes the position of the solar module which is always perpendicular to the direction of the sun's rays. To overcome this, it is necessary to design and implement a two-axis solar tracker system using a servo motor that is able to dynamically drive a PV generator following the direction of movement of sunlight supplied by an AC power source (PLN). The problem is that if the AC source is disturbed, the motor drive stops working so that the absorption of sunlight is not optimal. The research proposes the design and implementation of a two-axis solar tracker system based on Arduino Nano using a photodiode sensor and automatic transfer switch (ATS). ATS functions if there is a disturbance in the AC source, the system automatically transfers the load power supply to a DC source in the form of a battery or vice versa, so that the tool is still able to work. The photodiode sensor in the Arduino Nano circuit is used because it has better sensitivity to sunlight than the light-dependent resistor (LDR) sensor. The PV generator in this study uses the PV1 and PV2 modules. The results shows that the PV module using a two-axis tracker system with dynamic movement following the movement of the sun's position is able to produce a more significant and more stable average output voltage-than the system without using a tracker both on the static PV module position facing east and west respectively by 12.34% and 10.94%. The sensitivity of the photodiode sensor to sunlight also helps improve the performance of the proposed system so that the PV output voltage in the 09.00-15.00 WIB period, becomes larger and more stable than the system without a solar tracker.
{"title":"Kombinasi Sistem Solar Tracker Dua Sumbu dan Automatic Transfer Switch (ATS) untuk Menstabilkan Tegangan Keluaran Pembangkit Photovoltaic (PV) Menggunakan Sensor Photodioda dan Arduino Nano","authors":"Agung Hadi Tamari, Amirullah Amirullah","doi":"10.21107/rekayasa.v15i2.14444","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.14444","url":null,"abstract":"The performance of a photovoltaic (PV) generator is strongly influenced by the intensity of sunlight hitting the solar module. Thus it takes the position of the solar module which is always perpendicular to the direction of the sun's rays. To overcome this, it is necessary to design and implement a two-axis solar tracker system using a servo motor that is able to dynamically drive a PV generator following the direction of movement of sunlight supplied by an AC power source (PLN). The problem is that if the AC source is disturbed, the motor drive stops working so that the absorption of sunlight is not optimal. The research proposes the design and implementation of a two-axis solar tracker system based on Arduino Nano using a photodiode sensor and automatic transfer switch (ATS). ATS functions if there is a disturbance in the AC source, the system automatically transfers the load power supply to a DC source in the form of a battery or vice versa, so that the tool is still able to work. The photodiode sensor in the Arduino Nano circuit is used because it has better sensitivity to sunlight than the light-dependent resistor (LDR) sensor. The PV generator in this study uses the PV1 and PV2 modules. The results shows that the PV module using a two-axis tracker system with dynamic movement following the movement of the sun's position is able to produce a more significant and more stable average output voltage-than the system without using a tracker both on the static PV module position facing east and west respectively by 12.34% and 10.94%. The sensitivity of the photodiode sensor to sunlight also helps improve the performance of the proposed system so that the PV output voltage in the 09.00-15.00 WIB period, becomes larger and more stable than the system without a solar tracker.","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"164 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85001287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.9799
Mukhamad Su’udi, Arsetyo Rahardianto, Miatin Alvin Septianasari, Veren Yuliana Saputri, Dwi Setyati, F. Ulum
Sorghum (Sorghum bicolor L. Moench) is a cereal crop that has the potential to be developed in Indonesia as a food, feed and industrial crop. Sorghum is a C4 plant that has the advantage of efficiency in hot and dry environments. Drought stress is one of the most limiting environmental factors for crop productivity worldwide, and can be caused by water deficits in the soil and in the atmosphere. On the decreasing leaf water status, the rate of CO2 assimilation and the conductance of stomata decreased rapidly. The CO2 concentration mechanism is able to saturate C4 photosynthesis under the relatively low intercellular CO2 concentration. In addition, CO2 photorespiration is likely to be repaired before it exits the bundle sheat cells. The effects of non-stomatal factors include reduced activity of photosynthetic enzymes, inhibition of nitrate assimilation, induction of premature aging, and changes in leaf anatomy. Photosynthesis in C4 plants, including sorghum, involves, others, the PEPC and Rubisco enzymes. Drought can also trigger oxidative stress, which is an environmental condition that has increased Reactive Oxygen Species (ROS) due to an over reduction of the photosynthesis process.
高粱(Sorghum bicolor L. Moench)是一种谷类作物，在印度尼西亚具有作为食品、饲料和工业作物开发的潜力。高粱是一种C4植物，在干热环境下具有高效的优势。干旱胁迫是世界范围内最限制作物生产力的环境因素之一，可由土壤和大气中的水分不足引起。在叶片水分状态下降的情况下，CO2同化速率和气孔导度迅速下降。在较低的胞间CO2浓度下，CO2浓度机制能够使C4光合作用饱和。此外，CO2光呼吸很可能在其离开束鞘细胞之前被修复。非气孔因素的影响包括降低光合酶活性、抑制硝酸盐同化、诱导早衰和改变叶片解剖结构。包括高粱在内的C4植物的光合作用涉及到PEPC和Rubisco酶。干旱还可以引发氧化应激，这是一种由于光合作用过程过度减少而增加活性氧(ROS)的环境条件。
{"title":"Review Aktivitas Fotosintesis pada Tanaman Sorgum (Sorghum bicolor) dalam Kondisi Cekaman Kekeringan","authors":"Mukhamad Su’udi, Arsetyo Rahardianto, Miatin Alvin Septianasari, Veren Yuliana Saputri, Dwi Setyati, F. Ulum","doi":"10.21107/rekayasa.v15i2.9799","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.9799","url":null,"abstract":"Sorghum (Sorghum bicolor L. Moench) is a cereal crop that has the potential to be developed in Indonesia as a food, feed and industrial crop. Sorghum is a C4 plant that has the advantage of efficiency in hot and dry environments. Drought stress is one of the most limiting environmental factors for crop productivity worldwide, and can be caused by water deficits in the soil and in the atmosphere. On the decreasing leaf water status, the rate of CO2 assimilation and the conductance of stomata decreased rapidly. The CO2 concentration mechanism is able to saturate C4 photosynthesis under the relatively low intercellular CO2 concentration. In addition, CO2 photorespiration is likely to be repaired before it exits the bundle sheat cells. The effects of non-stomatal factors include reduced activity of photosynthetic enzymes, inhibition of nitrate assimilation, induction of premature aging, and changes in leaf anatomy. Photosynthesis in C4 plants, including sorghum, involves, others, the PEPC and Rubisco enzymes. Drought can also trigger oxidative stress, which is an environmental condition that has increased Reactive Oxygen Species (ROS) due to an over reduction of the photosynthesis process.","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82127739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.15494
Nizar Amir, Hakam Muzakki, Hoomzah Nur Alisiyah, R. Apriyanto
{"title":"Analisis Tekno-Ekonomi Produksi Pupuk Cair Ramah Lingkungan dari Limbah Air Budidaya Ikan Berbasis Masyarakat","authors":"Nizar Amir, Hakam Muzakki, Hoomzah Nur Alisiyah, R. Apriyanto","doi":"10.21107/rekayasa.v15i2.15494","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.15494","url":null,"abstract":"","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87216774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.14334
I. M. Wirawan, Syarif Mustika Harinurdi, Achmnad Faisol
Submarines of very strategic value in their procurement are directed to realize a deterrence strategy and a balancing strategy with state actors that have the potential to threaten the sovereignty of the Indonesian state. In addition to threats, the procurement of submarines also considers the geographical constellation of Indonesia. The first step in procurement is to make an analysis in terms of selecting alternative submarines, both analysis of information and identification of various important and interrelated requirements regarding data from alternative submarines that will be selected. In this condition, it can be solved by using fuzzy AHP approach. The results obtained from the Fuzzy AHP method are the order of priority for selecting alternative submarines, namely Scorpene Class (0.398), Changbogo Class (0.220), Reis Class (0.191) and Gotland Class (0.191). Where the results of the importance of the main criteria are sequentially starting from the Strategic Requirement (Strareq) criteria of 0.409, Operation Requirement (Opsreq) of 0.318 and Technical Requirement (Techreq) of 0.273.
{"title":"Analisis Pemilihan Kapal Selam Dalam Memperkuat Postur TNI AL Menggunakan Metode Fuzzy dan Analytical Hierarcy Process","authors":"I. M. Wirawan, Syarif Mustika Harinurdi, Achmnad Faisol","doi":"10.21107/rekayasa.v15i2.14334","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.14334","url":null,"abstract":"Submarines of very strategic value in their procurement are directed to realize a deterrence strategy and a balancing strategy with state actors that have the potential to threaten the sovereignty of the Indonesian state. In addition to threats, the procurement of submarines also considers the geographical constellation of Indonesia. The first step in procurement is to make an analysis in terms of selecting alternative submarines, both analysis of information and identification of various important and interrelated requirements regarding data from alternative submarines that will be selected. In this condition, it can be solved by using fuzzy AHP approach. The results obtained from the Fuzzy AHP method are the order of priority for selecting alternative submarines, namely Scorpene Class (0.398), Changbogo Class (0.220), Reis Class (0.191) and Gotland Class (0.191). Where the results of the importance of the main criteria are sequentially starting from the Strategic Requirement (Strareq) criteria of 0.409, Operation Requirement (Opsreq) of 0.318 and Technical Requirement (Techreq) of 0.273.","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78084880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.14152
Joan Ferdiyanto, I. M. W. H. Arsanta, Sadimin Sadimin
Indonesian Navy flights as an integral part of the SSAT have several functions, one of which is to provide rapid logistical support. Based on considerations of function and mobilization capabilities, medium-sized military transport aircraft are the main choice in providing rapid logistical support. The advantages of this function and mobility also make military transport aircraft capable of carrying out additional tasks assigned to their guiding squadron, namely the 600 Air Wing Squadron. The additional tasks are Search and Rescue (SAR), Air Medical Evacuation (EMU) and VIP Flights. Currently, there are 11 elements of the NC212-200 aircraft owned by Puspenerbal, with a description of 7 active elements, 4 disposal processes. In 2017, Puspenerbal received the Beechcraft King Air 350i light transport aircraft, but several operational requirements were not met to carry out the main function as an element of fast logistics support provider, so this element was prioritized to carry out additional functions such as VIP flights. The results of the analysis using the Analytic Hierarchy Process (AHP) method with the help of the Expert Choice 11 Application show the weight of the criteria for selecting medium military transport aircraft, namely Navigation and Communication Equipment 46.4%, Short Take-off and Landing (STOL) Ability 31.7 %, Transportability 15.3%, and Flying Ability 6.7% with an Inconsistency value of 0.07. This shows that the calculation of the correspondent is still within the inconsistency threshold, which cannot be more than 0.1. While the order of priority for the alternative types of medium military transport aircraft from high to low is the CN 295 type 80.5% and the Alenia C27J Spartan type 19.5%. Based on this value, it can be seen that the CN 295 Medium Military Transport Aircraft is the right alternative to be chosen.
{"title":"Strategi Pemilihan Pesawat Angkut Militer Produksi PT. Dirgantara Indonesia Untuk Mendukung Industri Pertahanan Dalam Negeri","authors":"Joan Ferdiyanto, I. M. W. H. Arsanta, Sadimin Sadimin","doi":"10.21107/rekayasa.v15i2.14152","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.14152","url":null,"abstract":"Indonesian Navy flights as an integral part of the SSAT have several functions, one of which is to provide rapid logistical support. Based on considerations of function and mobilization capabilities, medium-sized military transport aircraft are the main choice in providing rapid logistical support. The advantages of this function and mobility also make military transport aircraft capable of carrying out additional tasks assigned to their guiding squadron, namely the 600 Air Wing Squadron. The additional tasks are Search and Rescue (SAR), Air Medical Evacuation (EMU) and VIP Flights. Currently, there are 11 elements of the NC212-200 aircraft owned by Puspenerbal, with a description of 7 active elements, 4 disposal processes. In 2017, Puspenerbal received the Beechcraft King Air 350i light transport aircraft, but several operational requirements were not met to carry out the main function as an element of fast logistics support provider, so this element was prioritized to carry out additional functions such as VIP flights. The results of the analysis using the Analytic Hierarchy Process (AHP) method with the help of the Expert Choice 11 Application show the weight of the criteria for selecting medium military transport aircraft, namely Navigation and Communication Equipment 46.4%, Short Take-off and Landing (STOL) Ability 31.7 %, Transportability 15.3%, and Flying Ability 6.7% with an Inconsistency value of 0.07. This shows that the calculation of the correspondent is still within the inconsistency threshold, which cannot be more than 0.1. While the order of priority for the alternative types of medium military transport aircraft from high to low is the CN 295 type 80.5% and the Alenia C27J Spartan type 19.5%. Based on this value, it can be seen that the CN 295 Medium Military Transport Aircraft is the right alternative to be chosen.","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84870414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.15057
Rahmawati Fitria, Heni Rahmayanti, Bagus Sumargo
An Ecological drainage becomes an application in this development project in the Kelapa Gading area. The drainage concept that is applied is a drainage system in which rainwater that falls on road surface runoff will flow directly into the water infiltration system and directly fill the ground surface water. Geologically, it can be seen that North Jakarta is an area with a fairly high ground water level (MAT), and has an average MAT elevation of 2 - 2.5 m. This study intends to determine the ability of this ecodrainage to reduce runoff/floods that often occur in areas with a fairly high MAL. What direct benefits can be felt in the use of ecodrainage in these flood-prone areas, thus making the basic reason for applying this ecodrainage. This study uses a dynamic systems approach. In the preparation of the dynamic system model, Powersim Studio Version 10 software will be assisted. The simulation results show that an increase in rainfall every year will provide an increasing flood potential. By using eco-drainage, it is felt that it is not optimal enough to reduce runoff in areas that have high MAT levels. However, this ecodrainage still provides broad sustainability benefits. The quantity of groundwater will slowly be filled up to the aquier layer through this ecodrainage. This step is considered to be able to help prevent the aquifer layer from being exposed and have an impact on the rate of land subsidence so that the potential for flooding will decrease.
生态排水系统在克拉巴加丁地区的开发项目中得到了应用。所应用的排水概念是指雨水落在路面径流上，直接流入渗水系统，直接填满地表水的排水系统。从地质上看，北雅加达是一个地下水位相当高的地区，平均地下水位高度为2 - 2.5米。本研究旨在确定该生态排水系统减少径流/洪水的能力，这些径流/洪水经常发生在MAL相当高的地区，在这些洪水易发地区使用生态排水系统可以感受到哪些直接效益，从而提出应用该生态排水系统的基本理由。本研究采用动态系统方法。在动态系统模型的准备过程中，将辅助使用Powersim Studio Version 10软件。模拟结果表明，每年降雨量的增加将增加洪水的潜力。通过使用生态排水，认为在具有高MAT水平的地区减少径流并不是最理想的。然而，这种生态排水仍然提供了广泛的可持续性效益。通过这种生态排水，地下水的数量将慢慢被填满到含水层。这一步骤被认为能够帮助防止含水层暴露，并对地面沉降速度产生影响，从而降低洪水的可能性。
{"title":"Pemodelan Sistem Dinamik Eco-Drainage di Wilayah Tanah Basah (Studi Kasus Kawasan Kelapa Gading DKI Jakarta)","authors":"Rahmawati Fitria, Heni Rahmayanti, Bagus Sumargo","doi":"10.21107/rekayasa.v15i2.15057","DOIUrl":"https://doi.org/10.21107/rekayasa.v15i2.15057","url":null,"abstract":"An Ecological drainage becomes an application in this development project in the Kelapa Gading area. The drainage concept that is applied is a drainage system in which rainwater that falls on road surface runoff will flow directly into the water infiltration system and directly fill the ground surface water. Geologically, it can be seen that North Jakarta is an area with a fairly high ground water level (MAT), and has an average MAT elevation of 2 - 2.5 m. This study intends to determine the ability of this ecodrainage to reduce runoff/floods that often occur in areas with a fairly high MAL. What direct benefits can be felt in the use of ecodrainage in these flood-prone areas, thus making the basic reason for applying this ecodrainage. This study uses a dynamic systems approach. In the preparation of the dynamic system model, Powersim Studio Version 10 software will be assisted. The simulation results show that an increase in rainfall every year will provide an increasing flood potential. By using eco-drainage, it is felt that it is not optimal enough to reduce runoff in areas that have high MAT levels. However, this ecodrainage still provides broad sustainability benefits. The quantity of groundwater will slowly be filled up to the aquier layer through this ecodrainage. This step is considered to be able to help prevent the aquifer layer from being exposed and have an impact on the rate of land subsidence so that the potential for flooding will decrease.","PeriodicalId":31510,"journal":{"name":"Dinamika Rekayasa","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83232956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-06DOI: 10.21107/rekayasa.v15i2.15505
Adi Bandono, Sukmo Hadi Nugroho, O. S. Suharyo
The achievement of the vision, mission and also the target of a military institution is strongly influenced by soldiers or personnel who are human resource capital. In terms of human resources or personnel, of course, they have work motivation that must be maintained in order to survive in military organizations. Potential human resources and in accordance with their field of work will support the achievement of the organization if they are utilized optimally. This study aims to find answers about how the influence of organizational culture (X1) and job satisfaction (X2) on the work motivation of military personnel (Y) with work facilities as moderating variables (X3). The scientific method used in this research is survey research using a quantitative approach, the data analysis carried out in this study by analysis using statistical model tests. The results obtained in this study are (a) Organizational culture (X1) has a significant effect on work motivation (Y) in Institutions or Military Organizations, (b) Job satisfaction (X2) has a significant effect on work motivation (Y) in Institutions or Organizations. Military, and (c) Work facilities (X3) have a significant effect on work motivation (Y) in Military Institutions or Organizations. Based on the test results, it is also known that there is an effect of these variables after interacting with the work facilities variable as a moderating variable, the results obtained that have a significant effect on the work motivation of personnel. So it can be concluded that work facilities moderate organizational culture and job satisfaction so that it affects the increase in work motivation in military institutions or organizations.
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