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Jurnal Kridatama Sains dan Teknologi
Published by Universitas Ma'arif Nahdlatul Ulama
ISSN : 26566966     EISSN : 26856921     DOI : -
Core Subject : Science, Education, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Social Sciences
Jurnal KRIDATAMA SAINS DAN TEKNOLOGI diterbitkan oleh Universitas Ma’arif Nahdlatul Ulama (UMNU) Kebumen Pendidikan (Education). Teknologi (technology), Penelitian (research). Bahasa Inggris (Language English), Bahasa Indonesia (Language Indonesian), Olahraga (Sport), Anak Usia Dini (early childhood education), Teknik Informatika (Technical Information), Teknik Sipil (civil Engineering). Pertanian (agriculture), Peternakan (animal husbandry).
Arjuna Subject : Umum - Umum
Articles 261 Documents
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Aplikasi Larutan Hara dan Zat Pengatur Tumbuh terhadap Pertumbuhan Tanaman Pakcoy dengan Sistem Hidroponik Sinaga, Reflianta Br; Ginting, Nelva Meyriani; Budiman, Indra; Lase, Agustinus
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1430

Abstract

Pakcoy is a type of plant that belongs to the mustard family with the Latin name Brassica rapa L. Pakcoy plants can be cultivated with hydroponic technique, which is a plant cultivation technique without soil media. Hydroponics is one of the solutions in overcoming the limited land in urban areas. This study aims to analyze the effect of nutrient solution concentration and the provision of growth regulators on the growth and production of pakcoy plants using the hydroponic method. The research was conducted in a completely randomized design (CRD) involving two factors. The first factor was the concentration of nutrient solution (N) with two levels: N1 = 700 ppm, 900 ppm, and N2 = 1,000 ppm, 1,200 ppm. The second factor is growth regulator (H) consisting of five levels: H0 = Control (no hormone), H1 = 1 ml/l water, H2 = 2 ml/l water, H3 = 3 ml/l water, and H4 = 4 ml/l water. Parameters observed included plant height, number of leaves, and wet weight. The results showed that the concentration of nutrient solution had a significant effect on the number of leaves and wet weight, but not significant on plant height. Meanwhile, the application of growth regulators also had a significant impact on the number of leaves and wet weight, but had no significant effect on pakcoy plant height. In general, increasing the concentration of nutrient solution and dosage of growth regulators increased the growth of pakcoy plants
Implementasi Penggunaan Program Autodesk Revit pada Pekerjaan Struktur Proyek Pembangunan Gereja Bethany Yestoya Malang Dimas Febrianto Pratama; Michella Beatrix, Michella Beatrix
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1431

Abstract

In a construction project, the planner, owner, supervisor, and project implementer have a joint task, namely to complete a project quickly, effectively, and efficiently. However, the larger the project implemented, the more complex the problems that occur. One of the problems that often occurs is the problem related to the amount of work volume. To overcome these problems, a concept called Building Information Modelling (BIM) is used. BIM can do modeling in 2D and 3D which is used to obtain the resulting drawings/working drawings and the necessary building dimensions. This study uses primary and secondary data from the project location in the form of general project data, work drawings/shopdrawings, and structural work Bill Of Quantity which are processed using the BIM program, namely Autodesk Revit, with the help of another computing program Microsoft Excel. The results of this study indicate that the calculation of the total volume between the Autodesk Revit program and the conventional method has a difference of 436.85 m3 in concrete work and 168481.22 kg in rebar work
Kajian Biaya Replanting Karet (Havea brasiliensis) Kebun Masyarakat Menggunakan Mesin Pertanian (Chainsaw) Di Kabupaten Padang Lawas Hasibuan, Surtan; Manik, Marino; Lubis, Anita Rizky; Gea, Sary Indah Yani
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1432

Abstract

Rubber Replanting is the cutting down or cutting of unproductive rubber trees, renewing old plants and replacing the plants with more productive plants. In general, rubber plant rejuvenation is carried out when the plant reaches the age of 25-30 years. However, in this study, rejuvenation was carried out on 14-year-old rubber plants. This research was conducted to determine the cost of cutting down rubber trees independently in an area of 1 Ha, and utilizing tree waste into useful firewood. This research was conducted from September 30 to October 12, 2024 with a research area of 1 hectare. The cost of replanting using heavy equipment generally costs 10 - 15 million in 1 Ha. This information was obtained from direct interviews with business actors who provide heavy equipment rental services in the form of excavators in the Padang Lawas area. Based on the economic ability of rubber plantation farmers, using Chainsaw machine tools is estimated to be more economical than using heavy equipment such as excavators. How to replant rubber by cutting rubber trees one by one and chopping trees into firewood. Analysis using Descriptive analysis and secondary data. The results showed that replanting using chainsaw is more economical than using heavy equipment (Excavators) and rubber trees that are uprooted can be of economic value and this research can be a reference for farmers who want to do replanting
Analisis Debit Potensial dan Kualitas Air Tanah Dangkal di Sub DAS Kasin Kota Malang Yuliani, Emma; Hendrawan, Andre Primantyo; Rubiantoro, Prasetyo; Wardani, Annida Shafira; Miasari, Putu Kalila Shevanya
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1438

Abstract

Malang City is the second largest city in East Java. Rapid population growth changes the city of Malang from an agrarian to a residential and industrial area. This has resulted in increased pressure on groundwater conditions both in quantity and quality. Groundwater exploitation for the fulfillment of clean water is one of the main factors causing a decrease in shallow groundwater levels. Pressure on the quality of one of them is domestic waste and industrial waste discharged on the ground surface. The Kasin sub-watershed area of Malang City is a basin area in the middle of a dense urban settlement and industry. Runoff flowing water gathered into one in the Kasin River so that this condition is vulnerable to pollution of surface water and groundwater. The research methods used include survey, geoelectric measurements, water sampling, laboratory testing, and data processing using the Darcy to calculate groundwater potential, Water Quality Index (WQI) method and Pollution Index to determine groundwater quality against land use change. Based on the results of the observations carried out, the research area is included in the Malang Tuff Formation (Qvtm) with a resistivity value range of 3.4–389 Ωm resulting in rock layers consisting of top soil, clay, tufa, sandstone tuft, pumice tuft, and breksi tuft. From the geoelectric point, 2 passes were made to obtain a hydraulic slope that illustrates the potential of groundwater in the study area of 0.340 – 8.273 l/second. Based on the results of the calculation, the shallow groundwater pollution index is classified as light to moderately polluted. Meanwhile, with the WQI method, water is very bad and not suitable for drinking
Analisis Faktor-Faktor yang Mempengaruhi Permintaan Agrowisata Stroberi di Kecamatan Berastagi Kabupaten Karo Sinaga, Anggiat; Zendrato, Melvin
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1439

Abstract

Strawberry agro-tourism in Berastagi is one of the tourist destinations that offers a unique experience in the form of strawberry picking activities directly from the garden and consumption of fresh strawberries by enjoying the beauty of the surrounding natural scenery. However, consumer interest in buying strawberries is still relatively low, so the development of strawberry agro-tourism is a solution to increase strawberry consumption in the region. This study aims to analyze the factors that influence the demand for strawberry agritourism in Berastagi. The variables studied include travel costs, income per month, travel time to tourist sites, and gender dummies. The research method used is multiple linear regression analysis using primary data collected through interviews with purposively selected tourists. The results showed that income and travel costs have a positive and significant effect on the demand for strawberry agro-tourism, while travel time to tourist sites has a negative and significant effect. The gender variable has no significant effect on demand. These findings indicate that to increase public interest in strawberry agritourism, it is necessary to develop promotional strategies and improve accessibility to tourist sites. Thus, the potential of strawberry agro-tourism can be maximized to support increased strawberry consumption and strengthen the tourism sector
Analisis Kapabilitas Sistem Pelayanan Pelanggan Menggunakan Framework Cobit 5 (Studi Kasus: Pdam Sidoarjo) Safitri, Eristya Maya; Safira, Amalia; Wardinasahira, Putrinadiffa; Ertiansyah, Ahmad Alfian; Cintani, Nadia Latifa; Naja, Safinatun; Ahmad, Naufal Nur
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1449

Abstract

Customer service is a crucial element in the operations of Regional Water Supply Companies (PDAM) to ensure customer satisfaction and support business sustainability. This study aims to evaluate the capabilities of the customer service system at PDAM Sidoarjo, which still relies on manual processes, particularly in managing customer complaints and meter readings. Although bill payments have been integrated with the Payment Point Online Bank (PPOB) system, the manual processes still pose challenges, such as data errors and processing delays. An audit was conducted using the COBIT 5 framework, focusing on domains DSS01 - Manage Operations, DSS02 - Manage Service Requests and Incidents, and MEA01 - Monitor, Evaluate, and Assess, to assess the capability levels and identify areas for improvement. The audit results indicate that the average capability level of DSS01 is at Level 4 (Predictable Process), while DSS02 and MEA01 are at Level 3 (Established Process) and Level 4, respectively. The gap analysis revealed the need for improvements in infrastructure monitoring, complaint handling, and service quality evaluation. Recommendations include process automation and enhanced oversight to achieve better efficiency and effectiveness. This research is expected to serve as a guide for PDAM Sidoarjo in improving the capabilities of its customer service processes to support more optimal and customer-oriented services.
Penilaian Kinerja Dosen Menggunakan Metode Simple Additive Weighting (SAW) Valerian, Kumara Davin; Anas, Muhamad Abdul; Farrasanto, Akram; Raehan, Muhamad; Anshor, Abdul Halim
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1458

Abstract

Lecturer performance evaluation is an important component in efforts to improve the quality of education, research, and community service in higher education. Effective lecturer performance depends not only on academic competence, but also on pedagogical ability, discipline, and contribution to the development of science and technological innovation. This study aims to design a decision support system based on the Simple Additive Weighting (SAW) method to produce objective and measurable lecturer performance. Research data were collected through observation by reviewing the head of the study program and informatics engineering students at Pelita Bangsa University. The evaluation process includes normalizing the decision matrix that includes several main criteria, such as attendance, discipline, course learning objectives, and semester learning plans. Each criterion is given a weight according to its level of importance. The results of the alternative calculations show that the highest score is selected as the contribution with the best performance. In this study, data from 20 doses were analyzed, resulting in a ranking based on the calculated scores. The second alternative (TIF2) obtained the highest score (V2 = 0.95), followed by the fifth alternative (TIF5) with a score (V5 = 0.94). These findings indicate that the SAW method can efficiently identify the best dose performance based on predetermined criteria. This system not only provides objective results but also facilitates the decision-making process in higher education institutions. The system designed through this research is expected to be an effective tool in transmitting and improving lecturer performance. With proper implementation, universities can improve the quality of teaching, research, and community service sustainably
Analisis Lereng Tanpa Perkuatan dan Dengan Perkuatan TPT Pada Software Geoslope Ikhwan, Mohammad
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1463

Abstract

Slope stability is a critical aspect in infrastructure planning and development, especially in areas with complex topography such as Jatigede Village, Sumberrejo District, Bojonegoro Regency. Factors such as local geological characteristics, the intensity of rainfall that occurs, and human activities can significantly influence the potential for landslides which can threaten community safety and potentially damage existing infrastructure in the local location. In Jatigede Village, Sumberrejo District, Bojonegoro Regency, there is an area with a slope reaching 62˚ which is classified as a steep slope. This area is the main access route for local communities to carry out daily activities. However, during the rainy season, this steep slope becomes a location prone to landslides, which can disrupt the smooth flow of traffic and pose a danger to local residents. Overall, this research not only aims to improve academic understanding of slope stability, but also to make a real contribution to the development of a more reliable and sustainable planning methodology, which can be applied in infrastructure projects in various regions with similar geotechnical challenges throughout Indonesia with using the Geoslope program and using the Bishop method. From the results of the analysis using GeoStudio 2023 software with the Bishop method without reinforcement, a value with a Safety Factor (FK) of 0.627 was obtained. And coupled with strengthening the retaining wall with a height of 4.5 m and a width of 2 m, a Safety Factor (FK) value of 1.508 was obtained. Indicates that the slope has now reached a safety level that is considered safe
Budidaya Tanaman Cabai Rawit (Capsicum frutescens L.) melalui Pemanfaatan Hormon GSA (Giberelin Sitokinin Auksin) Organik Suhita, Cahyaningtyas Putri; Nurafian, Dimas Asyarif; Setyaningrum, Desy
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1464

Abstract

The consumption of cayenne pepper tends to increase every year which is not balanced with the amount of national production, so a solution is needed so that the productivity of cayenne pepper can increase. Increasing productivity can be done through the use of organic fertilizers, namely GSA (Gibberellin Cytokinin Auxin). GSA stimulates the growth of roots, stems, leaves, branches, flower and fruit development, prevents aging, and helps seed germination. The purpose of this study was to determine the cultivation of cayenne pepper with the addition of GSA (Gibberellin Cytokinin Auxin) hormones and to analyze the farming efforts of cayenne pepper cultivation. This research was conducted in Pager Jurang Hamlet, Kepuharjo Village, Sleman Regency, Special Region of Yogyakarta. The research methods include field practice, observation and interviews. Conventional cayenne pepper cultivation activities on beds include preparation of planting media, sowing, planting, maintenance, harvesting, and post-harvest. Cultivation activities of cayenne pepper through the use of GSA hormones. Environmental conditions have a temperature of 22.5°C-28.4°C, humidity of 62.5%-85.2%, light intensity of 1845-3270 lux, altitude of 699 meters above sea level, and regosol soil type. The productivity of cayenne pepper is 62.26 kg during 14 harvests. The selling price of cayenne pepper tends to fluctuate by IDR 34,000/kg (April), IDR 23,000/kg (May), IDR 33,000/kg (June), and IDR 43,000/kg (July). Analysis of cayenne pepper cultivation farming can be said to be feasible or profitable with an R/C ratio of 1.17; B/C ratio of 0.17; and ROI of 17%. The farming ratio can be greater if the selling price is above the BEP price
Pengaruh Lama Pengeringan Jamur Tiram (Pleurotus ostreatus) Menggunakan Gelombang Mikro Terhadap Rendemen Tingkat Kekerasan dan Warna Adhiguna, Rizky Tirta Adhiguna
Jurnal Kridatama Sains dan Teknologi Vol 6 No 02 (2024): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v6i02.1473

Abstract

This study aims to determined the effect of drying time of oyster mushrooms (Pleurotus ostreatus) using a microwave oven on yield, hardness, and color. The method used is an experimental design with a completely randomized design consisting of two treatment factors, namely the type of oyster mushroom (white oyster mushroom and HU oyster mushroom) and drying time (20 minutes, 30 minutes, and 40 minutes). The results showed that drying time significantly affected the three parameters tested (p<0.05). The highest yield was obtained with 20 minutes of drying for white oyster mushrooms at 41%, while the lowest yield was with 40 minutes of drying for HU oyster mushrooms at 7.52%. The highest hardness was achieved with 30 minutes of drying for white oyster mushrooms at 256.8 gf, and the lowest with 20 minutes of drying at 83.3 gf. The color of the oyster mushrooms was also affected by drying time, with the highest lightness value at 20 minutes of drying for white oyster mushrooms at 63.87%. Based on the results, the best drying time to produce oyster mushrooms with optimal quality is 20 minutes

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