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Erifive Pranatal
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INDONESIA
Journal of Applied Sciences, Management and Engineering Technology (JASMET)
Published by Institut Teknologi Adhi Tama Surabaya
ISSN : -     EISSN : 27212165     DOI : https://doi.org/10.31284/j.jasmet.2020.v1i1.704
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Journal of Applied Sciences, Management and Engineering Technology (JASMET) is an international peer-reviewed journal that was launched by LPPM ITATS. It is dedicated to provide a high-level platform in all aspect of science, management and engineering technology Scope of the journal: Engineering, Science and Management
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 10 Documents
 1 
Search results for , issue "Vol 1, No 1 (2020)" : 10 Documents clear
A function of Bioslurry Organic for Solid Fertilizer Dewi, Intan Suksma; Kusuma, Maritha Nilam; Pramestyawati, Talentnia
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.877

Abstract

Indonesia is an agricultural country in which people mostly work as farmers and produce abundant farming outcomes. On one hand, the use of chemical fertilizer supports the plants growing well. On the other hand, it decreases the soil fertility and farming product quality. The alternative way to reduce or substitute the chemical fertilizer is by using organic fertilizer which can be made through composting method for 2 months mixing the leaf waste and rice straw. Before mixing both materials, the values of C, N, P, K and the water content of Bioslurry were respectively 15.17%, 0.27%, 0.3%, 0.05%, and 67.07%. Meanwhile, the values of C, N, P, K and the water content of leaf waste were consecutively 41.12%; 1.22%; 1.16%; 8.94%; and 28.77%. Moreover, the values of C, N, P, K, and the water content of rice straw were sequentially 39.42%; 1.20%; 1.05%; 10.07%; and 31.23%. After mixing both materials through composting method, the results of rice straw fertilizer got C-Organic 20.87%; N 2.01%; P 0.16%; K 5.64%; water 22.31%, and C/N ratio 16.38%. Meanwhile, the composting process of leaf waste yielded C-Organic 25.44%; N 1.18%; P 0.18%; K 7.95%; water 11.85%, and C/N ratio 21.55%.
Evaluation of PDAM Performance Using Dynamic Models Kristiawan, Helmi; Karnaningroem, Nieke; Kusuma, Maritha Nilam
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.704

Abstract

the Regional Government is the fulfillment of basic needs of daily drinking water. However, the service by PDAM is still not optimal. It can be seen from the PDAM's performance that was “unhealthy from year to year according to BPPSPAM data. Some of the research methods used in analyzing PDAM performance are problem identification, identification of variables and conceptual models, dynamic model simulations, analysis and interpretation as well as drawing conclusions and suggestions. From the simulation result of dynamic models using Vensim PLE plus software, alternative scenarios were obtained, that will increase domestic water consumption and customer connections by 12.5% per year, increasing the repair and replacement of distribution piping systems and customer meters by 20% per year, and increasing rate to 15% per year.
Identification of Critical Path Changes and Concurrent Delays Using EDAM Method for Building Project Kamandang, Zetta Rasullia
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.867

Abstract

Achieving a project whose punctually in completion date and duration is one of the main purposes of the project planning. However, avoiding the issue of the delay is hard to do. Delays itself commonly divided into three types, EN, EC and NE delays that represent the contribution of each project parties. Furthermore, the concurrent delay is at different levels that often use as a tool against each other parties. In term of preventing the time-frame problems, the critical path method (CPM) is widely applied. In the delay analysis technique, the EDAM method employs CPM to identify the critical path changes and the occurred concurrent delays. Implementing a six-floor building as-planned schedule and its delays information as a case study, this research results show that the critical path of the building has changed eight times and the concurrent delay occurred on the first change with six days of delays. By identifying the critical path change, project parties are expected to be able to prevent continuously delays by escalating the work progress. Furthermore, the information about concurrent delays would be essential in avoiding disputes regarding this issue. Project parties would be aware of their contribution to critical path changes by knowing their caused delay in that time period.
Behaviour of Rectangular Concrete Filled Tubes and Circular Concrete Filled Tubes under Axial Load Casita, Cintantya Budi; Sarassantika, I Putu Ellsa; Sulaksitaningrum, Roro
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.868

Abstract

This paper presents the result behavior of two different type of Concrete Filled Tubes: Rectangular Concrete Filled Tubes (RCFT) and Circular Concrete Filled Tubes (CCFT). In this model, the column end is fixed and the axial load, Paxial, are applied to the column end. The amount of axial load is divided into 5 steps, which increasing continuously. The dimension of the column is 300x300x10 for RCFT and 300x10 for CCFT. As the results, stress distribution, load-deformation curve, load-stress curve, and weight calculation are compared. And it shows that the CCFT gives better performance than the RCFT.
MAPPING THE WATER QUALITY STATUS AND POLLUTION LOAD OF SELOATAP RIVER IN GALENGDOWO VILLAGE, WONOSALAM, JOMBANG Wicaksono, Adityo Tri; Handriyono, Eko Rachmanu
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.871

Abstract

Seloatap River is a creek of Brantas River passing through Galengdowo Village, Wonosalam District, Jombang Regency. The majority of people in this area work as farmer and cowman. Unfortunately, its waste of farming has not been well-managed yet. Therefore, a study on the status of river water quality by IP (Index of Pollution) method based on The Ministerial Decree of Environment No. 115 in 2003 and The Government Regulation No. 82 in 2001 is necessary. This research aimed at mapping the results of analyzing the water quality status and pollution load of Seloatap River. This research was carried out in three phases i.e. preliminary survey, river water sample collection, and data analysis. The preliminary survey was for investigating Galengdowo Village location, pollutant type entering the river, river location, and coordinate data collection when the water of Seloatap River was taken. Meanwhile, the sample collection aimed at investigating the pollutant contents that were tested by some parameters namely DO, pH, TSS, BOD, COD, and Total Ammonia (NH3-N). The last, data analysis was for analyzing the obtained data to yield a map. The results of research demonstrated that the calculation using IP method gained from 0.63 (fulfilled the quality standard) to 5.33 (medium pollution).  Accordingly, the mapping process of pollution load and water quality status of Seloatap River indicated that this river was in polluted condition and had high pollution load resulted from farming sector.
A function of Bioslurry Organic for Solid Fertilizer Intan Suksma Dewi; Maritha Nilam Kusuma; Talentnia Pramestyawati
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.877

Abstract

Indonesia is an agricultural country in which people mostly work as farmers and produce abundant farming outcomes. On one hand, the use of chemical fertilizer supports the plants growing well. On the other hand, it decreases the soil fertility and farming product quality. The alternative way to reduce or substitute the chemical fertilizer is by using organic fertilizer which can be made through composting method for 2 months mixing the leaf waste and rice straw. Before mixing both materials, the values of C, N, P, K and the water content of Bioslurry were respectively 15.17%, 0.27%, 0.3%, 0.05%, and 67.07%. Meanwhile, the values of C, N, P, K and the water content of leaf waste were consecutively 41.12%; 1.22%; 1.16%; 8.94%; and 28.77%. Moreover, the values of C, N, P, K, and the water content of rice straw were sequentially 39.42%; 1.20%; 1.05%; 10.07%; and 31.23%. After mixing both materials through composting method, the results of rice straw fertilizer got C-Organic 20.87%; N 2.01%; P 0.16%; K 5.64%; water 22.31%, and C/N ratio 16.38%. Meanwhile, the composting process of leaf waste yielded C-Organic 25.44%; N 1.18%; P 0.18%; K 7.95%; water 11.85%, and C/N ratio 21.55%.
Evaluation of PDAM Performance Using Dynamic Models Helmi Kristiawan; Nieke Karnaningroem; Maritha Nilam Kusuma
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.704

Abstract

the Regional Government is the fulfillment of basic needs of daily drinking water. However, the service by PDAM is still not optimal. It can be seen from the PDAM's performance that was “unhealthy from year to year according to BPPSPAM data. Some of the research methods used in analyzing PDAM performance are problem identification, identification of variables and conceptual models, dynamic model simulations, analysis and interpretation as well as drawing conclusions and suggestions. From the simulation result of dynamic models using Vensim PLE plus software, alternative scenarios were obtained, that will increase domestic water consumption and customer connections by 12.5% per year, increasing the repair and replacement of distribution piping systems and customer meters by 20% per year, and increasing rate to 15% per year.
Identification of Critical Path Changes and Concurrent Delays Using EDAM Method for Building Project Zetta Rasullia Kamandang
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.867

Abstract

Achieving a project whose punctually in completion date and duration is one of the main purposes of the project planning. However, avoiding the issue of the delay is hard to do. Delays itself commonly divided into three types, EN, EC and NE delays that represent the contribution of each project parties. Furthermore, the concurrent delay is at different levels that often use as a tool against each other parties. In term of preventing the time-frame problems, the critical path method (CPM) is widely applied. In the delay analysis technique, the EDAM method employs CPM to identify the critical path changes and the occurred concurrent delays. Implementing a six-floor building as-planned schedule and its delays information as a case study, this research results show that the critical path of the building has changed eight times and the concurrent delay occurred on the first change with six days of delays. By identifying the critical path change, project parties are expected to be able to prevent continuously delays by escalating the work progress. Furthermore, the information about concurrent delays would be essential in avoiding disputes regarding this issue. Project parties would be aware of their contribution to critical path changes by knowing their caused delay in that time period.
Behaviour of Rectangular Concrete Filled Tubes and Circular Concrete Filled Tubes under Axial Load Cintantya Budi Casita; I Putu Ellsa Sarassantika; Roro Sulaksitaningrum
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.868

Abstract

This paper presents the result behavior of two different type of Concrete Filled Tubes: Rectangular Concrete Filled Tubes (RCFT) and Circular Concrete Filled Tubes (CCFT). In this model, the column end is fixed and the axial load, Paxial, are applied to the column end. The amount of axial load is divided into 5 steps, which increasing continuously. The dimension of the column is 300x300x10 for RCFT and 300x10 for CCFT. As the results, stress distribution, load-deformation curve, load-stress curve, and weight calculation are compared. And it shows that the CCFT gives better performance than the RCFT.
MAPPING THE WATER QUALITY STATUS AND POLLUTION LOAD OF SELOATAP RIVER IN GALENGDOWO VILLAGE, WONOSALAM, JOMBANG Adityo Tri Wicaksono; Eko Rachmanu Handriyono
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.871

Abstract

Seloatap River is a creek of Brantas River passing through Galengdowo Village, Wonosalam District, Jombang Regency. The majority of people in this area work as farmer and cowman. Unfortunately, its waste of farming has not been well-managed yet. Therefore, a study on the status of river water quality by IP (Index of Pollution) method based on The Ministerial Decree of Environment No. 115 in 2003 and The Government Regulation No. 82 in 2001 is necessary. This research aimed at mapping the results of analyzing the water quality status and pollution load of Seloatap River. This research was carried out in three phases i.e. preliminary survey, river water sample collection, and data analysis. The preliminary survey was for investigating Galengdowo Village location, pollutant type entering the river, river location, and coordinate data collection when the water of Seloatap River was taken. Meanwhile, the sample collection aimed at investigating the pollutant contents that were tested by some parameters namely DO, pH, TSS, BOD, COD, and Total Ammonia (NH3-N). The last, data analysis was for analyzing the obtained data to yield a map. The results of research demonstrated that the calculation using IP method gained from 0.63 (fulfilled the quality standard) to 5.33 (medium pollution).  Accordingly, the mapping process of pollution load and water quality status of Seloatap River indicated that this river was in polluted condition and had high pollution load resulted from farming sector.

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