Sainteks: Jurnal Sains dan Teknik最新文献

{"title":"Facilities Re-layout of “X” Health Center","authors":"Dini Yulianti, Tombak Gapura Bhagya, Didi Kusvendi","doi":"10.37577/sainteks.v5i2.601","DOIUrl":"https://doi.org/10.37577/sainteks.v5i2.601","url":null,"abstract":"Public health center as the first place to carry out tracer of covid-19 survivors and theimplementation of the COVID-19 mass vaccine as well as the large interest of the people who carry out treatment at the Public health center, the Public health center is a very risky place for the spread of infectious diseases, especially covid-19. In order to minimize the effect of transmission on infectious diseases and optimize the layout of the facilities, it is necessary to improve the layout of the facilities (re-layout) of the existing Public health center services. So far, Public health center services are still very irregular, such as the distance from general medical centers to other medical centers. The purpose of this research will be to produce a new facility layout for the Public health center, so that it can optimize employee performance and the layout of the facility. In this study, the layout of the facility was redesigned using the Activity Relationship Chart (ARC) And Material Handling Costs are used to determine the distance between rooms and to estimate degree of closeness between rooms, the results of this study are two layout designs aimed at puskesmas which aim to approach the treatment center and pharmacies as well and keep the ISPA room away to minimize the spread of COVID-19 disease.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"51 12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139335343","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}

{"title":"The Effect Of H2O2 On The Bleaching-Scouring Simultaneous Process Of 100% Cotton Fabric With Pad - Batch System","authors":"Luciana Luciana, Agni Salamah","doi":"10.37577/sainteks.v5i2.551","DOIUrl":"https://doi.org/10.37577/sainteks.v5i2.551","url":null,"abstract":"Simultaneous processes are processes that are implemented simultaneously where the process and substances used do not interfere with each other, the purpose of each process of preparation for refinement is implemented to remove starch on the warp threads in the form of natural impurities, external impurities and natural pigments in a short time and satisfactory result. The purpose of this research is to improve the quality of the results of the scouring process, and bleaching simultaneously in the pad-batch system. This research method was carried out by varying the concentration of H2O2: 20 g/l, 30 ml/l and 40 g/l using a 70% squeeze effect and a batching time of 12 hours. After the experiments were carried out, tests were implemented on starch content, absorption capacity - capillary test, degree of whiteness, tear strength test by tongue method and aging test (ΔE). From the experimental and test results, the optimum conditions showed that the higher the concentration of H2O2 up to a concentration of 40g/l with the same batching time for 12 hours was obtained at a concentration of H2O2 of 30 g/l where in these conditions starch could be removed from the material properly. Absorption power in 1 minute absorbs color as high as 4 cm. The white degree test results are 61.66%. The tear strength in the warp direction was 9.675 N and the tear strength in the weft direction was 7.475 N and the (ΔE) color difference value of L* (Lightness) or the brightness level was 73.74 for light colors; medium color 62.68; and dark color 20.49","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139335438","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}

{"title":"Optimum Splice Thickness Ratio Splicer of a Winding Machine to PE20KT Thread Splicing Quality","authors":"Hendri Pujianto, Bambang Yulianto, Hamdan S. Bintang, Dinda Amelia Pramesti","doi":"10.37577/sainteks.v5i2.605","DOIUrl":"https://doi.org/10.37577/sainteks.v5i2.605","url":null,"abstract":"Winding machines are needed after the spinning process on ring-spinning machines because small packages of spinnerets are mostly not suitable for efficiently carrying out subsequent processes such as weaving and knitting. The splicer is independently actuated to optimize splicing cycles. PT Delta Dunia Tekstil II (DDT 2) is a company operating in the spinning industry, with the CD line producing 100% polyester yarn, which is used to make fabric in the knitting process. Based on observations, thread defects occur, such as loops and holes in the knitted fabric, because the thread splices resulting from the winding process are brittle and thin. Experiments on setting joint thickness parameters on splicer adjustment indicators 1–5 with a ratio of 0.25 were carried out. After carrying out the experiment, 3 ratios were obtained for sampling visual tests and joint strength, namely a ratio of 2.5, 2.75, and 3. Observing and calculating the splice strength of the three splicer ratios sampled, it was found that the ratio of parameter 3 in the splicer was visually very good and consistent. Strange results also meet the standard, of 92.37%. The optimal splicer ratio setting that can be used for the Carded 20 KT production process is setting the splicer ratio with a splice thickness parameter of 3.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"30 7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139335439","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}

{"title":"In vitro antagonism test of endophytic isolates from the ciplukan plant (Physalis angulata L.) against Ralstonia solanacearums","authors":"Ika Afifah Nugraheni, Inneke Ashri Mawaddah","doi":"10.37577/sainteks.v5i2.607","DOIUrl":"https://doi.org/10.37577/sainteks.v5i2.607","url":null,"abstract":"Ralstonia solanacearum was a pathogenic bacteria that causes wilt disease which can cause up to one hundred percent damage to horticultural plants. Therefore, a control effort was needed to overcome this problem. The use of pesticides was an alternative that can be used to suppress the growth of the pathogen R. solanacearum. However, its continuous use poses a high risk to the environment so friendly and safe control efforts are needed. One way was by utilizing endophytic bacteria. This study aims to test the ability of endophytic bacterial isolates from ciplukan plant (Physalis angulata L.) to suppress the growth of the pathogenic bacteria R. solanacearum in vitro. The method in this research includes rejuvenating endophytic bacterial isolates BA2(3), BA3(1), DA1(4) and BU3(5) from ciplukan plants (Physalis angulata L.) obtained from research conducted by Setianah (2020), observations macroscopic and microscopic endophyte isolates, hypersensitivity test of endophytic bacteria on tobacco plants (Nicotiana tabacum L.), then continued with an in vitro antagonist test using the Kirby Baurer technique. Research data shows that of the four candidates, two isolates of endophytic bacteria, namely BA2(3) and BU3(5), showed a negative hypersensitivity reaction which was characterized by the absence of necrosis symptoms in the hypersensitivity test, so these isolates could be tested for antagonists. The results of the antagonist test showed that isolates BA2(3) and BU3(5) had the potential to inhibit the growth of R. solanacearum which had an inhibitory diameter of 3.03 mm and 1.60 mm in the first 24 hours of incubation. It is hoped that the ability of endophyte isolates BA2(3) and BU3(5) to inhibit the growth of the pathogen R. solanacearum can be used as a biological agent to reduce the use of pesticides in treating plant diseases.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139335488","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}

{"title":"Briquette Characteristics of Mixed Charcoal of Taro Peel and Rice Husk","authors":"Galu Murdikaningrum, Mutiara Putri Utami Susanto, Raden Tarisa Nurhanifah, Mua Lifah","doi":"10.37577/sainteks.v5i2.603","DOIUrl":"https://doi.org/10.37577/sainteks.v5i2.603","url":null,"abstract":"Petroleum reserves in Indonesia are running low, as well as fossil energy. If these conditions are not handled appropriately and quickly, the Indonesian nation will experience a petroleum crisis. Biomass briquettes are made from a combination of rice husks, taro husks, and a tapioca flour adhesive, and they will be produced as a byproduct of Indonesia's extensive agricultural sector and the growing taro industry. The use of taro skin in conjunction with other raw materials gives this study an element of originality. The purpose of this research is twofold: to disseminate knowledge about the potential of biomass waste, and to analyze how different biomass waste mixtures affect the briquettes SNI-required properties. An experimental approach was used for this study. In this experiment, three different weight ratios of taro husks to rice husks (KT:50%, KT:75%, and KT:100%) were employed as the primary raw materials. Five-and-a-half percent of the briquette dough's overall weight comes from tapioca flour's role as an adhesive. Preparation of briquette materials, carbonization, briquetting, and testing for biomass briquette characteristics are the first steps in the study approach. The calorific value, moisture, ash, volatile matter, binding carbon, and density tests are all part of this battery of analyses. The highest grade briquettes have a calorific value of 3,993.92 cal/g and are made from 100% KT briquettes. KT briquettes with a 75% moisture content are the highest grade briquettes available. At 22.90%, KT briquettes have the lowest ash level of any high-quality briquettes. Briquettes made from 100 percent KT, or 0.09 percent volatile matter, are the highest grade available. KT briquettes, which have a bonded carbon content of 74.59%, are the highest grade option. 50% KT briquettes, with a density of 0.48 g/cm3, are the highest grade briquettes available.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139335631","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}

{"title":"Analysis of the Influence of Occupational Health Aspects at PT. Plasticolors Eka Perkasa on Employee Performance","authors":"Chairul Falah, Risma Fitriani","doi":"10.37577/sainteks.v5i1.504","DOIUrl":"https://doi.org/10.37577/sainteks.v5i1.504","url":null,"abstract":"Kesehatan kerja merupakan sebuah usaha berupa implementasi peraturan-peraturan yang telah ditetapkan guna memastikan kondisi kesehatan fisik dan sosial karyawan tetap terjaga sehingga aktivitas pekerjaan dapat dilakukan secara optimal. PT. Plasticolors Eka Perkasa merupakan sebuah perusahaan yang berkiprah dalam aktivitas industri pewarnaan plastik. Kondisi pekerjaan tersebut secara tidak langsung membuat karyawan mengalami interaksi dengan zat kimia yang dapat membahayakan kesehatan sehingga mengakibatkan aktivitas kerja menjadi tidak optimal. Kondisi dimana terdapat risiko paparan zat kimia yang diterima karyawan membuat perusahaan perlu mempertimbangkan aspek kesehatan karyawan secara lebih lanjut. Penelitian dilaksanakan dengan maksud untuk mengetahui pengaruh aspek kesehatan kerja atas kinerja karyawan. Analisis pengolahan data dilakukan dengan memanfaatkan metode pengujian rank spearman. Hasil pengujian menunjukkan nilai signifikansi (sig) 0,024 < 0,05 sehingga hasil hipotesis menyatakan bahwa ditemukan suatu korelasi antara aspek kesehatan kerja dengan kinerja karyawan. Koefisien korelasi bernilai p = 0,671 yang menunjukkan variabel memiliki tingkat hubungan yang kuat dengan arah hubungan bersifat positif.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"29 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124658817","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}

{"title":"Re-Layout of Puskesmas X Post-Covid 19 Pandemic Through the ARC, Conventional and Promodel Simulation Methods","authors":"Tombak Gapura Bhagya, Dini Yulianti, G. Prakarsa, Antari Nurayban Gitardiana","doi":"10.37577/sainteks.v5i1.493","DOIUrl":"https://doi.org/10.37577/sainteks.v5i1.493","url":null,"abstract":"The Community Health Center (Puskemas) is the foremost and closest place to provide health services to the community. With the BPJS and complete facilities, the Puskesmas is now almost the favorite of the people to get health-related consultation and treatment. So this study tries to make an analysis of puskesmas services and evaluate the layout and queues in the puskesmas using Promodel simulations. The simulation is used because of the fluctuating number of patients who come every day, so that with the simulation the process of estimating patient arrivals can be carried out using statistical distribution estimates. The results of this study indicate the need for a new layout change, where with this new layout the patient's time in the system can be reduced and the need for adding doctors to 2 to 3 people to cut the number of queues that have accumulated waiting to be examined by a doctor. If the point of adding doctors cannot be met, then the puskesmas can provide adequate waiting room facilities for patients who will be examined by a doctor. The ideal number of waiting room seats for patients waiting to be examined by a doctor is 38 seats.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131581551","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}

{"title":"Evaluation of the Mental Workload of PSIT Employees at SIT XYZ Institutions","authors":"Teguh Aprianto, Agus Rahmat Hermawanto, Rimba Krisnha Sukma Dewi, Angling Sugiatna, Abdul Fatah","doi":"10.37577/sainteks.v5i1.539","DOIUrl":"https://doi.org/10.37577/sainteks.v5i1.539","url":null,"abstract":"The results of the Subjective Self Rating Test (SSRT) questionnaire in the Information and Technology System Development section showed that workers experienced symptoms of severe head, fatigue, drowsiness, yawning, forgetfulness, awkwardness and stiffness. This indicates a problematic workload. This study aims to see the level of mental workload of each staff. The method in this study used NASA-TLX. Based on calculations, it was found that staff 4 has a mental workload score of 84.67 which means it is very high, staff 6 has a mental workload score of 27.33 with a low category, and for other staff has a high mental workload, which is a range of values from 66 to 74.67.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122253390","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}

{"title":"Analysis of Frame Construction Strength in Belt Conveyor Design Using Ansys Workbench","authors":"Anggi Pratama, D. Agusman","doi":"10.37577/sainteks.v5i1.527","DOIUrl":"https://doi.org/10.37577/sainteks.v5i1.527","url":null,"abstract":"Belt conveyor is a material transfer machine that is generally used in the industrial world to transport semi-finished production materials and products from one part to another. In making a conveyor belt, the main component is needed, namely the frame. The frame is a construction that functions as a place where the components become a unit on a machine. In this research, a simulation test will be carried out to determine the strength of the construction and the material used by the framework for component loading by providing maximum carrying capacity for variable loading. The loading given is 100kg, 200kg, 300kg, 400kg and 500kg. This test simulation uses the Ansys Workbench 2020 R2 software with the finite element analysis (FEA) method. Analysis of strength testing uses a frame model measuring 4070 mm x l500 mm x 2440 mm as the main frame which is then simulated with maximum loading variations ranging from 100 – 500kg. The analysis results from testing the strength of the construction of the conveyor belt frame against the loading variable, obtained a safety factor of 100kg = 3.70; 200kg = 3.01; 300kg = 2.67; 400kg = 2.41; 500kg = 2.16. The minimum safe limit for dynamic loads is 2 according to Dobrovolsky's \"machine element\" book, thus the maximum loading tolerance for the conveyor belt frame may not be more than 500 kg. \u0000 ","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122589377","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}

{"title":"Changes on Recycling Behaviors Based on Governmental Programs (Study Case in Bendungan Village, Indonesia)","authors":"Dafi Dinansyah Wiradimadja, Hisatsuna Mori, Riza Rizkiah","doi":"10.37577/sainteks.v5i1.510","DOIUrl":"https://doi.org/10.37577/sainteks.v5i1.510","url":null,"abstract":"Environmental problems such as erosion, flooding, are mainly caused by human activities itself. Due to main environmental problems mainly came or originated from man, the solutions or prevention effort to repair the environment, must involve human factors in its planning. In Indonesia in general, including in Bendungan Village, limited insight, lack of skills, poor health, and a low work ethic are all internal factors that cause environmental problems. Furthermore, the lack of knowledge about the environment is one of the causes of the emergence of environmentally destructive behavior that is carried out unconsciously. One of the problems in this village is garbage, people throw garbage into drains and empty land because they are not aware of the consequences of their actions. One solution that exists to solve environmental problems by involving human factors in it is through capacity building, one of which is through a sustainability education and incentive given by the West java Government. Through this concept, citizens are given education about the impact of their previous behavior, one of them is the behavior of littering. The program also provides economic value to waste so that there is an incentive to maintain the condition or waste managing waste in their village. This research used Mixed Methods approach (quantitative and qualitative) and use secondary data review, direct observation and semi semi-structured interviewing to collect the data. This research found that the main factor for the success of this program is the people who willing to be open concerning the program and its concepts, thus becoming aware about their environmental problems, they willing to work for the benefit of their village. In this village the push factor are economic and re-education aspects that move the people to save their environment. The economic benefit from garbage bank also have helped this program. The obstacles to the program in this village are the lack of facilities that they have, and for cadres to teach people about the environment, the lack of the government to provide formal education for the people and the last obstacle of this program is the economic factor, low amount of sellable garbage such as PET and cans have become major obstacle in promoting garbage bank.","PeriodicalId":434078,"journal":{"name":"Sainteks: Jurnal Sains dan Teknik","volume":"396 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122720550","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}