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Angelia Putriana
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INDONESIA
Jurnal Sains dan Teknologi
Published by Yayasan Literasi Sains Indonesia
ISSN : 28284992     EISSN : 28284984     DOI : https://doi.org/10.55123/insologi
Core Subject : Health, Science, Education, Agriculture, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary
INSOLOGI (Jurnal Sains dan Teknologi) diterbitkan 6 (enam) kali dalam setahun, yaitu pada bulan Februari, April, Juni, Agustus, Oktober dan Desember oleh Yayasan Literasi Sains Indonesia. Jurnal INSOLOGI adalah jurnal yang dapat diakses secara terbuka bagi para Peneliti, Dosen dan Mahasiswa yang ingin mempublikasikan hasil penelitiannya pada bidang ilmu sains dan teknologi. Jurnal INSOLOGI juga merupakan wadah informasi berupa hasil penelitian, studi kepustakaan, gagasan, aplikasi teori dan kajian analisis kritis dibidang perkembangan sains dan teknologi yang meliputi bidang ilmu pengetahuan alam (biologi, kimia, dan fisika), matematika dan statistik, perikanan/kelautan, kesehatan dan farmasetika, pertanian (agribisnis dan agroteknologi), keteknikan (teknik sipil, mesin, arsitektur, lingkungan, dan pertambangan), pengembangan/desain miniatur/rancang bangun dan bidang ilmu lainnya yang relevan dengan penelitian sains dan teknologi.
Arjuna Subject : Matematika - Matematika Terapan
Articles 501 Documents
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Penggunaan Hidrogen Peroksida pada Kolam Lumpur Aktif Upaya Menghilangkan Filamentous dan Meningkatkan Nilai Index Pengendapan Bio Sludge di PT. X Industri Kertas Jawa Timur Dewi Intan Elok Mayangsari; Rizka Novembrianto
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1283

Abstract

The paper industry is one of the industries that can cause river pollution. The processing industry produced from this forest is a contributor to liquid waste which can harm the environment and the living things that live in it. So that an integrated treatment is needed to reduce the hazardous content of the waste that is disposed of. Bacteria is one way that can be used for non-food or food. Filamentous bacteria are the abnormal growth filaments of certain bacteria, one example of which is Escherichia coli. In this study, the quantitative research method was used. The chemicals used are by adding a 0.5% Hydrogen Peroxide solution at a dose of 4 ppm, and using 5 days. Also, the parameters tested in the aeration tank were DO, pH, MLSS, SVI, microscopic filamentous conditions and in the effluent bath, namely DO, pH, TSS, COD, turbidity. The results in the aeration tank with the pH parameter have an average value of 8.018, DO has an average value of 6.09, MLSS with an average of 3770, and SVI of 122. The results in the effluent bath with a pH parameter have an average of 7, 84. DO has an average of 4.13, turbidity has a value of 21.2-60.3 on the fifth day, COD value has an average of 123, and TSS value has an average value of 74.5.
Penilaian Kondisi Bangunan pada Salah Satu Gedung Perkantoran Jakarta dalam Pengambilan Keputusan dan Pengaruh Keselamatan Para Pekerja Pandu Wicaksono; Rizka Novembrianto
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1287

Abstract

Assessment of building conditions is a method of evaluating a building objectively in the form of a scale of 1-100 based on the performance of the building system that composes it. The purposes of this assessment are (1) Knowing the condition of the building; (2) Reconstructing the maintenance planning strategy to reduce the amount of damage in the following evaluation period (3) Re-assessing the impact of operational damage on the work environment. The research phase begins with (1) grouping buildings that have the same function; (2) Determining the range of data and categorization; (3) Conducting inspections and data collection; and (4) Data analysis. Before an appraisal of a building, the appraiser needs the initial cost of the building during the construction process. If the initial cost of the building is not well documented, the cost of building construction is obtained by calculating estimates. Through estimation calculations, appraisers can determine the factors that can affect the evaluation process of a building. Determination of the initial cost is calculated based on a sample that has been grouped by function and purpose. The results obtained will be able to assist in making decisions for scheduling maintenance and inspections, functional and re-design of buildings, or OHS (Ocupational Health and Safety) evaluation reviews.
Analisa Pengelolaan Lingkungan Gedung X Terhadap Kualitas Udara dan Air Putri Redita Rositasari; Rizka Novembrianto
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1299

Abstract

Air quality and air are very important for human health and comfort. Good quality air can ensure enough oxygen for the human body, while good quality water can meet the water needs of the human body and other needs. However, the quality of air and water in some places can be disrupted by various factors, such as air and water pollution, and poor environmental management. Therefore, it is important to conduct research on air and water quality to determine their level of cleanliness and take the necessary action to maintain or improve it. This research aims to analyze the air and water quality in Building X, as well as the factors that affect it, so that it can provide useful information for maintaining good air and water quality. The research method used is a document study that begins with conducting a critical review of the evaluation matrix for environmental management efforts in the Environmental Impact Assessment Document of Building X in Sleman District. The results of the study show that the environmental management of buildings affects the air and water quality inside. Good management can ensure the quality of air and water that is healthy and comfortable for building occupants, and help reduce negative impacts on the environment
The Adjusted Cut-Off Value of Interferon-Γ Release Assays (IGRA) to Diagnose LTBI in Indonesia Denada Florencia Leona
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1300

Abstract

Latent Tuberculosis Infection (LTBI) is as a condition when Mycobacterium tuberculosis (MTB) persists in the body without causing symptoms while maintaining viability with the possibility to become active tuberculosis in the future. The detection of LTBI is an important strategy from WHO to end the chain of tuberculosis. LTBI can be diagnosed by using the IGRA test. IGRA uses specific antigens of MTB, early antigenic target-6 (ESAT-6), to induce interferon-gamma production by antigen-specific T cells. In the IGRA test, the cut-off value is explicitly needed to distinguish healthy people from LTBI patients. This study aimed to find IGRA's adjusted cut-off value in Indonesia. The subjects were 150 people, which were 50 healthy people, 50 subjects with active TB, and 50 with suspected LTBI. Isolated Lymphocytes derived from PBMC sand were cultured in a complete RPMI medium and induced by Esat-6 for six days. IFN-g levels were assayed from supernatants by the sandwich Elisa technique. Statistical analysis was used to determine cut-off values for IFN-g derived from healthy and diseased patients. The highest aptitude index (κ value) that could discriminate between healthy and LTBI groups was 0.925 at a concentration of 0.792 ng/ml of IFN-g, hence the cut-off value to diagnose LTBI was 0.792 ng/ml of IFN-g. Based on this value, out of 40 suspected cases of LTBI, up to 17 (42.5%) and 23 without LTBI (57.5%) were found. So, the conclusion was that the adjusted cut-off value for IFN-g to diagnose LTBI in Indonesia was 0.792 ng/ml.
Efektivitas Adsorben Kitosan - Natrium Tripolifosfat dalam Menurunkan Konsentrasi Fe dan Mn pada Air Sumur Emeralda Rieke Wibowo; Firra Rosariawari
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1323

Abstract

In general, well water or ground water often contains iron (Fe) and manganese (Mn) ions in it. One of the effective water treatment processes to remove heavy metals is adsorption. Natural adsorbents such as chitosan can be effective adsorbents used to reduce heavy metal concentrations in the environment. One of the weaknesses of chitosan is the strength of the mechanical structure and low stability. Therefore, crosslinking modifications were carried out to improve the mechanical structure and reduce solubility. This study aims to determine the effect of sodium tripolyphosphate on the process of making chitosan shrimp shell-sodium tripolyphosphate adsorbent and to determine the optimum conditions of the variation of the adsorbent and the mass used. The research variables used were the sodium-tripolyphosphate concentration of 0.25%; 0.50%; and 1.00%, the mass of the adsorbent in the column was 5 grams and 7.5 grams, and the sampling times were 20 minutes, 40 minutes, 60 minutes, 80 minutes, 100 minutes, 120 minutes, 140 minutes and 160 minutes. The results showed that the 1% chitosan-sodium tripolyphosphate adsorbent with a mass of 7.5 grams was the most optimal in reducing the content of Fe by 92% and Mn by 93%.
Kemampuan Biofiltrasi Aerob dalam Menurunkan Beban Organik Limbah Cair Soaking Kulit Sapi Maurennisha Saskia; Tuhu Agung
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1353

Abstract

This research used cowhide soaking liquid waste in the home industry for washing cow culture in North Surabaya and then analyzed it on a laboratory scale using an aerobic biofilter with variations in the porosity of the media chamber and residence time (td) in the bioballs to remove COD, TSS and NH3-N parameters. Sampling point of wastewater was taken using purposive sampling method. The purpose of this research was to determine the effectiveness of aerobic biofilters in reducing pollutant parameters in cowhide soaking waste according to spatial porosity of 20,40,60% and residence time (td) of 12, 24, 36, 48, 60 hours. So that the research results obtained percent removal at 60% porosity media can reduce COD by 90%, TSS by 89%, and NH3-N by 89%. But the NH3-N parameter according to East Java Governor Regulation No. 52 of 2014 has not met the quality standard. Then for the most optimal residence time in removing COD, TSS and NH3-N is 60 hours, it can degrade COD by 89.98%, TSS by 86% and 88.51%.
Kuantitas dan Karakteristik Sampah Bahan Pangan : Studi Kasis Surabaya Selatan Sabrinatus Amalia Gustannanda; Euis Nurul Hidayah; Aulia Ulfah Farahdiba
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1398

Abstract

Food loss can be defined as the reduction of food quantity at each stage of the food supply chain, particularly in the type of food consumed by humans. This study aims to directly measure the amount and composition of food waste in order to provide complete and detailed information, which can also be used as a reference in formulating policies or preventive actions. Measurement of the quantity and composition of waste refers to SNI 19-3964-1994 with a sampling process for seven consecutive days based on the EPA's "A Guide to Conducting and Analyzing a Food Waste Assessment." The sampling results show that the quantity of food waste for one week (7 days) at Wonokromo Market is 1.08 tons and for Mangga Dua Market it is 1.06 tons, with an average food waste produced at Wonokromo Market of 154.6 kg per day and at Mangga Dua Market of 152.7 kg per day. This number includes only the categories of vegetables, fruits, starchy foods, whole grains, oily fruits and grains, and meat. Vegetables are in the category of food waste with the highest percentage. waste characteristics obtained from laboratory tests with test parameters for water content, calorific value, and CHON.
Prototipe Kelas Pintar dengan Absensi Otomatis MAC Address Gawai Berbasis IoT Adi Setiawan; Gyga Putra Parsaulian Hutauruk; Tita Aisyah
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1400

Abstract

This IoT-based smart classroom prototype was built using the NodeMCU microcontroller ESP8266. The automation system works by checking if there are users connected to the access point in the classroom and the course scheduled to use it. The attendance check is done by fetching MAC address from a user's device automatically. Next, it will activate relay to turn on electrical facilities in the used classroom, such as lamps, fans, or air conditioners. The system also uses the website using MySQL database to monitor classroom conditions, edit class schedules, register user devices to the system and access attendance data. From the tests carried out, the system can run according to design. Among other things, the relay circuit can be arranged according to the schedule of activities and the whereabouts of the user. Attendance data can be displayed according to users who are connected and registered in the system. The calculations on total delay of system yield results that the delay to activate the classroom is 10.66 ± 0.87 seconds on the website and 14.55 ± 0.78 seconds on the relay. On the other hand, the delay needed to deactivate the classroom is 39.34 ± 3.69 seconds on the website and 36.26 ± 3.70 seconds on the relay.
Penyusunan Rencana Persediaan dan Perkiraan Kebutuhan Kapasitas Jangka Panjang di PT.X Nita Marikena; Yuli Setiawannie
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1414

Abstract

Production capacity planning is part of operations management that is realistic and applicable, so estimates of production capacity originating from forecasting consumer demand for these products must be known in advance so that companies can use resources effectively, in terms of quantity, time, and costs used for the production process. PT. X is a company that produces products in two groups, namely Product Group-I and Product Group-II. Product Group-I consists of two types of products, namely Product A and Product B, while Product Group-II consists of Product C and Product D. The Company is still experiencing difficulties in meeting consumer demand for these two product groups for the long term. This study aims to determine the total estimated consumer demand for two product groups within one year and the number of production machines needed to optimize the production process. Based on the results of calculations and analysis, the total estimated demand for Product Group-I for 12 months is 2216 units with a production time of 1520 hours. Meanwhile, the total estimated demand for Product Group-II for 12 months is 2,896 units with a production time of 1,709 hours. To meet consumer demand, PT. X must provide 2 units of production machines that are operated in parallel.
Analisa Kuantitas dan Komposisi Timbulan Sampah Makanan Supermarket di Surabaya Nakita Andara Maharani; Naniek Ratni Juliardi A.R.; Aussie Amalia; Aulia Ulfah Farahdiba
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1446

Abstract

One of the serious problems being faced by several countries is food waste. The percentage of food waste generated in Indonesia in the last 20 years has tended to increase. In 2000, food waste generation in Indonesia was 39%, while in 2019 it increased to 55%. And 44% of food waste is food that is still suitable for consumption. There are various factors that can affect the amount of food waste generation. One of them is food waste behavior or someone's behavior towards food waste. In this study, researchers will analyze the quantity and composition of waste and also packaging type of waste generation from a supermarket located in Surabaya, East Java. As for this research, it used a survey collection technique in the form of secondary data, namely data collected by researchers from one of the supermarkets in Surabaya. Secondary data on waste composition and generation obtained are Oily fruits/seeds (peanuts, green beans, and coconut), Grains (wheat, rice, corn, wheat flour), Vegetables, Meat (beef, goat, chicken, pork), fish, milk, eggs, starchy foods, sugar, oil and fat. From the data that has been obtained, it is known that the generation of food waste at the Supermarket X is 40.8 kg per day with the dominating composition of waste consisting of vegetables, fruit and meat.

Page 12 of 51 | Total Record : 501

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