Pub Date : 2022-12-21DOI: 10.37277/stch.v32i4.1478
{"title":"Sorting system tool prototype Dimensi, Berat dan Barcode Kota Tujuan Berbasis Mikrokontroler","authors":"","doi":"10.37277/stch.v32i4.1478","DOIUrl":"https://doi.org/10.37277/stch.v32i4.1478","url":null,"abstract":"","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86868731","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 : 2022-12-18DOI: 10.37277/stch.v32i4.1450
{"title":"Durabilitas Clay Shale Hambalang Lapuk Distabilisasi dengan Semen Portland dan Energi Pemadatan Berlebih","authors":"","doi":"10.37277/stch.v32i4.1450","DOIUrl":"https://doi.org/10.37277/stch.v32i4.1450","url":null,"abstract":"","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79879012","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 : 2022-12-16DOI: 10.37277/stch.v32i4.1445
{"title":"Analisis Tegangan Drop Jaringan Tegangan Rendah Dengan Metode Pembagian Beban","authors":"","doi":"10.37277/stch.v32i4.1445","DOIUrl":"https://doi.org/10.37277/stch.v32i4.1445","url":null,"abstract":"","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88630867","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":"Cotesia rubecula Feeding Strategy as a Biocontrol Parasitoid: A Review","authors":"Maiyusri Eka Putri, Ramadhan Sumarmin, D. Putri","doi":"10.31958/js.v14i2.3536","DOIUrl":"https://doi.org/10.31958/js.v14i2.3536","url":null,"abstract":"Indonesian citizens","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87798692","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}
N. Retnowati, A. Ayuningtyas, Awandha Prabowo, Asih Pujiastuti
E-Learning is a system or educational concept that uses information technology in teaching and learning to use electronic media—usually used for teaching and learning processes within an unlimited distance. In the learning process of the Digital Aircraft Simulator course using e-learning, some obstacles are difficult to understand, and there is no discussion facility in the material section. Based on this, e-learning with the virtual classroom method is expected to overcome these problems so that the learning process can run well and effectively. In the online discussion feature with the virtual classroom method, there are two methods: synchronous and asynchronous. Based on the test using a white box to 13 paths for three days obtained a success rate of 100%. While the black box test obtained a success rate of 100% for the faculty and 100% for the student side, accessed using a laptop device with Windows 7 and 8 operating systems. While accessed using the Android smartphone, Kitkat, Lollipop, and Oreo obtained a success rate of 80% for the lecturer and 60% for the student. Then the test results with the Guttman scale obtained a success rate close to the percentage of 92%. The online discussion feature in the virtual classroom can facilitate communication between the lecturer, and students can also directly ask the lecturer through this feature when there is lecturer material and explanations that are not understood
{"title":"Online Discussion with Virtual Classroom Method as Supporting Lecturer Digital Aircraft Simulator","authors":"N. Retnowati, A. Ayuningtyas, Awandha Prabowo, Asih Pujiastuti","doi":"10.31958/js.v14i2.5849","DOIUrl":"https://doi.org/10.31958/js.v14i2.5849","url":null,"abstract":"E-Learning is a system or educational concept that uses information technology in teaching and learning to use electronic media—usually used for teaching and learning processes within an unlimited distance. In the learning process of the Digital Aircraft Simulator course using e-learning, some obstacles are difficult to understand, and there is no discussion facility in the material section. Based on this, e-learning with the virtual classroom method is expected to overcome these problems so that the learning process can run well and effectively. In the online discussion feature with the virtual classroom method, there are two methods: synchronous and asynchronous. Based on the test using a white box to 13 paths for three days obtained a success rate of 100%. While the black box test obtained a success rate of 100% for the faculty and 100% for the student side, accessed using a laptop device with Windows 7 and 8 operating systems. While accessed using the Android smartphone, Kitkat, Lollipop, and Oreo obtained a success rate of 80% for the lecturer and 60% for the student. Then the test results with the Guttman scale obtained a success rate close to the percentage of 92%. The online discussion feature in the virtual classroom can facilitate communication between the lecturer, and students can also directly ask the lecturer through this feature when there is lecturer material and explanations that are not understood","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81256678","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}
Tri Marta Fadhilah, Aulia Nurfadillah Utami, A. Puspitadewi, Aniadita Mutia Ermawan, Aracely Puspita Dariani
Dawet Ayu is a traditional drink made from rice flour, coconut milk, and brown sugar. Natural colors derived from suji plants are often used. We can make Dawet ayu into a functional drink with anthocyanin content using natural colors such as sappan wood and beetroot. We can use the benefit of this research as a reference that sappan wood and beetroot contain anthocyanin which acts as an antioxidant that is beneficial for health. We conducted the study to analyze the characteristics, acceptability, and anthocyanin levels of sappan wood dawet ayu with the addition of beetroot. The research design used was descriptive, experimental research that compared three groups with the addition of beetroot (50 g, 100 g, and 150 g). The research design used was a randomized block design. The results of statistical tests using the Friedman test showed that there were significant differences in the indicators of color, aroma, texture, and taste. The hedonic test obtained the highest public acceptance of sample P1 (50 grams of beetroot) with a taste score of 3.30 (like very much), color was 3.77 (like very much), the aroma was 3.58 (like very much), and texture was 3.48 (really like it), with the sample P3 (150 gr beetroot) of 23.14 mg/100g as the highest anthocyanin content. Sappan wood Dawet Ayu products with the addition of beetroot are acceptable in the community. The more addition of beetroot and sappan wood in the dawet ayu product, the higher the anthocyanin content.
{"title":"The Addition of Beetroot (Beta Vulgaris L.) to Dawet Ayu Sappan Wood (Caesalpinia Sappan L.) as a Functional Drink Containing Anthocyanins","authors":"Tri Marta Fadhilah, Aulia Nurfadillah Utami, A. Puspitadewi, Aniadita Mutia Ermawan, Aracely Puspita Dariani","doi":"10.31958/js.v14i2.5931","DOIUrl":"https://doi.org/10.31958/js.v14i2.5931","url":null,"abstract":"Dawet Ayu is a traditional drink made from rice flour, coconut milk, and brown sugar. Natural colors derived from suji plants are often used. We can make Dawet ayu into a functional drink with anthocyanin content using natural colors such as sappan wood and beetroot. We can use the benefit of this research as a reference that sappan wood and beetroot contain anthocyanin which acts as an antioxidant that is beneficial for health. We conducted the study to analyze the characteristics, acceptability, and anthocyanin levels of sappan wood dawet ayu with the addition of beetroot. The research design used was descriptive, experimental research that compared three groups with the addition of beetroot (50 g, 100 g, and 150 g). The research design used was a randomized block design. The results of statistical tests using the Friedman test showed that there were significant differences in the indicators of color, aroma, texture, and taste. The hedonic test obtained the highest public acceptance of sample P1 (50 grams of beetroot) with a taste score of 3.30 (like very much), color was 3.77 (like very much), the aroma was 3.58 (like very much), and texture was 3.48 (really like it), with the sample P3 (150 gr beetroot) of 23.14 mg/100g as the highest anthocyanin content. Sappan wood Dawet Ayu products with the addition of beetroot are acceptable in the community. The more addition of beetroot and sappan wood in the dawet ayu product, the higher the anthocyanin content.","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85429651","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 : 2022-11-21DOI: 10.37277/stch.v32i4.1469
{"title":"Prediksi Pemilihan Fakultas Di Universitas Pada Sekolah Menengah Atas Negeri XXX Tangerang Selatan Dengan Menggunakan Algoritma C4.5","authors":"","doi":"10.37277/stch.v32i4.1469","DOIUrl":"https://doi.org/10.37277/stch.v32i4.1469","url":null,"abstract":"","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74540398","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 : 2022-09-27DOI: 10.17977/um031v45i22022p91-98
Endang Ary Handayani, H. Elmunsyah, Widiyanti Widiyanti, Goh Yin Ying
The paper aims to describe the effort to optimize special job fairs in the tracer study conducted by Public Vocational High School (PVHS). This was a literature review using the content analysis method, in which the researcher reviewed some research and studies published in both national and international journals and other written works relevant to the topic of this article, namely optimalizing Special Job Fairs in VET tracer studies. The result of the review showed that the unemployment rate of VHS graduates was higher than that of other educational institutions. One of the causal factors behind this poor condition was the fact that those graduates had difficulty making steps in building their career after graduation. This suggested the need for the optimization of special job fairs as events held to provide strategic direction and illustration of what VHS students should do after graduation. The tracer study under discussion in this article dealt with the distribution of students working in Business and Industrial World
{"title":"Optimizing Special Job Fairs in the Tracer Study of Public Vocational High School","authors":"Endang Ary Handayani, H. Elmunsyah, Widiyanti Widiyanti, Goh Yin Ying","doi":"10.17977/um031v45i22022p91-98","DOIUrl":"https://doi.org/10.17977/um031v45i22022p91-98","url":null,"abstract":"The paper aims to describe the effort to optimize special job fairs in the tracer study conducted by Public Vocational High School (PVHS). This was a literature review using the content analysis method, in which the researcher reviewed some research and studies published in both national and international journals and other written works relevant to the topic of this article, namely optimalizing Special Job Fairs in VET tracer studies. The result of the review showed that the unemployment rate of VHS graduates was higher than that of other educational institutions. One of the causal factors behind this poor condition was the fact that those graduates had difficulty making steps in building their career after graduation. This suggested the need for the optimization of special job fairs as events held to provide strategic direction and illustration of what VHS students should do after graduation. The tracer study under discussion in this article dealt with the distribution of students working in Business and Industrial World","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85322744","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 : 2022-09-27DOI: 10.58169/saintek.v1i1.28
Bodian Davin Panggabean, Frans Simbol Tambing
Batuan merupakan kumpulan dari beberapa jenis mineral. Setiap mineral terdiri dari berbagai ion-ion atau unsur-unsur tertentu. Ion atu unsur-unsur ini dapat diextrak melalui proses pengolahan atau metalurgi yang bermanfaat sebagai bahan industri, baik industri kimia, manufactur, industri kesehatan, maupun industri bahan peledak. Penelitian ini merupakan kelanjutan perluasan penelitian tahun lalu, dimana pengambilan sampel dilakukan secara random di beberapa titik daerah Jayapura yaitu daerah Koyakoso dan sekitarnya. Metode pengambilan sampel dilakukan dengan cara pengambilan batuan yang masih segar dengan berat sekitar 2 Kg setiap titik. Titik pengambilan sampel sebanyak 6 titik dimana jarak antar titik sekitar 25 meter dengan titik pengambilan mengarah pada daerah perbukitan. Sampel yang telah diambil akan dibawa ke laboratorium untuk dilakukan analisa. Sampel terlebih dahulu dibersihkan dari kotoran-kotoran yang menempel seperti debu dan tanah,kemudian di gerus sampai ukuran 15 mesh, kemudian sampel hasil penggerusan di analisa dengan menggunakan mikroskop polarisasi untuk mengetahui sifat-sifat fisik batuan. Hasil dari sifat fisik batuan ini kemudian di interpretasi untuk mengetahui kandungan mineral-mineral yang terdapat pada batuan yang akan dikorelasikan dengan kandungan mineral yang tertera pada peta geologi regional lembar jayapura, dan hasil pengujian XRD terdahulu sebagai perbandingan. Hasil dari pengujian sifat fisik batuan ini langsung menunjukkan jenis kandungan mineral.
{"title":"ANALISA DAN INTERPRETASI KANDUNGAN MINERAL PADA BATUAN SEBAGAI BAHAN GALIAN INDUSTRI","authors":"Bodian Davin Panggabean, Frans Simbol Tambing","doi":"10.58169/saintek.v1i1.28","DOIUrl":"https://doi.org/10.58169/saintek.v1i1.28","url":null,"abstract":"Batuan merupakan kumpulan dari beberapa jenis mineral. Setiap mineral terdiri dari berbagai ion-ion atau unsur-unsur tertentu. Ion atu unsur-unsur ini dapat diextrak melalui proses pengolahan atau metalurgi yang bermanfaat sebagai bahan industri, baik industri kimia, manufactur, industri kesehatan, maupun industri bahan peledak. Penelitian ini merupakan kelanjutan perluasan penelitian tahun lalu, dimana pengambilan sampel dilakukan secara random di beberapa titik daerah Jayapura yaitu daerah Koyakoso dan sekitarnya. Metode pengambilan sampel dilakukan dengan cara pengambilan batuan yang masih segar dengan berat sekitar 2 Kg setiap titik. Titik pengambilan sampel sebanyak 6 titik dimana jarak antar titik sekitar 25 meter dengan titik pengambilan mengarah pada daerah perbukitan. Sampel yang telah diambil akan dibawa ke laboratorium untuk dilakukan analisa. Sampel terlebih dahulu dibersihkan dari kotoran-kotoran yang menempel seperti debu dan tanah,kemudian di gerus sampai ukuran 15 mesh, kemudian sampel hasil penggerusan di analisa dengan menggunakan mikroskop polarisasi untuk mengetahui sifat-sifat fisik batuan. Hasil dari sifat fisik batuan ini kemudian di interpretasi untuk mengetahui kandungan mineral-mineral yang terdapat pada batuan yang akan dikorelasikan dengan kandungan mineral yang tertera pada peta geologi regional lembar jayapura, dan hasil pengujian XRD terdahulu sebagai perbandingan. Hasil dari pengujian sifat fisik batuan ini langsung menunjukkan jenis kandungan mineral.","PeriodicalId":31905,"journal":{"name":"Sainstek Jurnal Sains dan Teknologi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79426531","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}
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