DINAMIS Pub Date : 2021-12-31 DOI: 10.32734/dinamis.v9i2.8445

Reymond Reflon F Gultom, M. Sabri

{"title":"ANALISA SIFAT MEKANIK DAN STRUKTUR MIKRO TERHADAP PENGELASAN BAJA AISI 1045 DENGAN METODE SMAW DAN GTAW PADA ARUS 100 AMPERE","authors":"Reymond Reflon F Gultom, M. Sabri","doi":"10.32734/dinamis.v9i2.8445","DOIUrl":"https://doi.org/10.32734/dinamis.v9i2.8445","url":null,"abstract":"Pengelasan adalah proses penyambungan logam atau non-logam yang dilakukan dengan memanaskan material yang akan disambung hingga temperatur las, yang dilakukan dengan atau tanpa menggunakan tekanan dan dengan atau tanpa menggunakan logam pengisi. Salah satu teknik pengelasan adalah dengan pengelasan SMAW (Shield Metal Arc Welding) dan GTAW (Gas Tungsen Arc Welding). Dengan las tersebut kita dapat menyambung logam seperti: Aluminium, Tembaga, Carbon Steel, dan Stainless Steel. Penelitian ini dilakukan untuk mengetahui sifat mekanik, struktur mikro, dan kekuatan sambungan las pada Baja AISI 1050. Pengelasan dilakukan dengan menggunakan tungsten TG-S50 untuk las GTAW dan elektroda E-6013 untuk las SMAW pada arus 100 Ampere dengan sambungan kampuh V 60o. Metode pengujian yang dilakukan adalah uji kekerasan dengan metode Brinell Hardness Tester, uji tarik dengan Tensile Tester, dan uji struktur mikro dengan Metallurgycal Microscope. Hasil rata-rata dari uji kekerasan Brinell didapat sifat mekanik baja AISI 1045 las SMAW pada daerah las dengan elektroda E-6013 pada arus 100 A adalah 160,04 BHN dan las GTAW dengan filer TG-S50 pada arus 100 A adalah 172,53 BHN. Nilai rata-rata tegangan las SMAW dengan elektroda E-6013 pada arus 100 A adalah 323,14 MPa dan las GTAW dengan filler TG-S50 pada arus 100 A adalah 411,57 MPa. Bentuk struktur mikro pada daerah lasan dengan pengelasan GTAW memiliki struktur mikro yang lebih kecil dibandingkan dengan pengelasan SMAW, hal ini membuktikan bahwa nilai kekerasan pada daerah lasan GTAW lebih besar dari pada nilai kekerasan pada daerah lasan SMAW.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79458625","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}

引用次数: 1

ANALISA KEANDALAN MESIN SCREW PRESS BERDASARKAN IDENTIFIKASI KEGAGALAN FAILURE MODE AND EFFECT ANALYSIS DAN ROOT CAUSE ANALYSIS 螺旋压力机的失效模式及影响分析和根本原因分析

DINAMIS Pub Date : 2021-12-31 DOI: 10.32734/dinamis.v9i2.8433

Syamsuddin Nur, I. Isranuri

引用次数: 0

ANALISA PERFORMANSI, STABILITAS, DAN SLIP PADA KAMPAS REM TROMOL BERBAHAN KOMPOSIT CPA ( CANDLENUT PINEAPPLE ALUMINIUM ) DALAM KONDISI BASAH DENGAN METODE PENGUJIAN JALAN MENGGUNAKAN SEPEDA MOTOR 110 CC 分析性能、稳定性和滑倒在基于CPA的复合TROMOL复合硬膜内，使用110毫升的摩托车进行公路测试

DINAMIS Pub Date : 2021-12-31 DOI: 10.32734/dinamis.v9i2.8443

Ardiansa Nasution, I. Isranuri, Riza Ahmad Yassin

{"title":"ANALISA PERFORMANSI, STABILITAS, DAN SLIP PADA KAMPAS REM TROMOL BERBAHAN KOMPOSIT CPA ( CANDLENUT PINEAPPLE ALUMINIUM ) DALAM KONDISI BASAH DENGAN METODE PENGUJIAN JALAN MENGGUNAKAN SEPEDA MOTOR 110 CC","authors":"Ardiansa Nasution, I. Isranuri, Riza Ahmad Yassin","doi":"10.32734/dinamis.v9i2.8443","DOIUrl":"https://doi.org/10.32734/dinamis.v9i2.8443","url":null,"abstract":"Kampas rem saat ini sangat diperlukan seiring banyaknya permintaan akan kendaraan. Cangkang kemiri dan daun nanas merupakan limbah yang kurang dimanfaatkan yang diharapkan mampu sebagai sumber bahan baku yang ekonomis dalam pembuatan kampas rem komposit CPA ( Candlenut Pineapple Aluminium). Tujuan penelitian ini untuk mengetahui nilai performansi, stabilitas dan slip yang terjadi pada kampas rem dalam kondisi basah ( perendalam selama 40 menit ) ketika digunakan pada saat pengereman serta membandingkan suhu, jarak, dan waktu pengereman pada kondisi basah dan kering. Metode penelitian menggunakan uji jalan pada sepeda motor 110 cc dengan 5 variasi beban yaitu 4,5 kg, 5 kg, 5,5 kg, 6 kg, dan 6,5 kg. Hasil nilai performansi 0,0022 kg m2/s2 untuk torsi, waktu pengereman 3,55 s, daya pengereman 50,05 watt dan kenaikan suhu tromol 10,63 0C, merupakan nilai performansi terbesar yang terjadi pada pembebanan 6,5 Kg. nilai stabilitas adalah (-0.0056) simpangan X1 pada percepatan 0,273 m/s2 untuk pembebanan 4,5 kg. Nilai slip adalah 0,89 pada pembebanan 4,5 kg, 0,86 pada pembebanan 5 kg , 0,85 pada pembebanan 5,5 kg, 0,82 pada pembebanan 6 kg, 0,72 pada pembebanan 6,5 kg. Jarak,waktu dan suhu pengereman berbanding lurus dengan penambahan beban","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77811100","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}

引用次数: 0

THE STUDENTS’ ABILITY IN TRANSLATING ENGLISH IDIOM 学生的英语习语翻译能力

DINAMIS Pub Date : 2021-12-02 DOI: 10.58839/jd.v18i2.995

Emon Paranoan

{"title":"THE STUDENTS’ ABILITY IN TRANSLATING ENGLISH IDIOM","authors":"Emon Paranoan","doi":"10.58839/jd.v18i2.995","DOIUrl":"https://doi.org/10.58839/jd.v18i2.995","url":null,"abstract":" \u0000The tittle of local research is The Students’ Ability In Translating English Idiom which researching the student of English letters students and graduate student in Titip Sentani Courses . The main problem of this research is to see the quality of translation English idiom result that done by fifth semester students of English letter in USTJ and Titip students course. The purpose of this study is to see whether both fifth semester of English letters and Titip students able to translate English idiom expressions of the source language to the target language (English to Indonesian), and whether students used many translation types in their translation. The method is used to take the data collection of this study are giving a set of test and questioners to the students. By using both of those procedures above, the data can be known and also students result that have translated, were analyzed to see that how far are the fifth semester students and Titip students able to transfer the core meaning of the source language to target language. There are many problems faced by students in translation process that is, students in fifth semester of English letters and Titip students found difficult words and the new idiom meaning to construct the sentence into the target language. The result of this local research show that students in fifth semester and Titip graduate students used free translation, word for word translation and literal translation types in their translation. The better translation result in translation done by a big part students of Titip students course that be able to transfer the idiom from the source language into the target language which is Bahasa Indonesia by using their existing language knowledge of both these language.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82829188","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}

引用次数: 0

ANALISIS PENGARUH KUALITAS LAYANAN JASA PENDIDIKAN TERHADAP KEPUASAN MAHASISWA PADA KAMPUS STIPER SANTO THOMAS AQUINAS JAYAPURA 分析教育服务质量对圣托马斯·阿奎那·查亚普拉学院学生满意度的影响

DINAMIS Pub Date : 2021-12-01 DOI: 10.58839/jd.v18i2.968

Ratna Luciana Resubun

{"title":"ANALISIS PENGARUH KUALITAS LAYANAN JASA PENDIDIKAN TERHADAP KEPUASAN MAHASISWA PADA KAMPUS STIPER SANTO THOMAS AQUINAS JAYAPURA","authors":"Ratna Luciana Resubun","doi":"10.58839/jd.v18i2.968","DOIUrl":"https://doi.org/10.58839/jd.v18i2.968","url":null,"abstract":"This study aims to determine and analyze the effect of service quality which consists of variables of physical evidence, reliability, responsiveness, assurance, and empathy partially and simultaneously and dominantly affect student satisfaction at the STIPER Santo Thomas Aquinas Jayapura campus. \u0000The sample in this study were students of STIPER Santo Thomas Aquinas Jayapura class of 2017, totaling 100 people. Types and sources of data used are primary and secondary data, primary data can be done by distributing questionnaires directly to students who are on campus. Secondary data in this study were obtained from data on the STIPER Santo Thomas Aquinas Jayapura campus and through documents, reports, internet, and other scientific writings. The analytical method used is the method of multiple linear regression (multi linear regression), while the hypothesis test uses t test and f test with a significant level of 5%. \u0000The results showed that the partial test (t), physical evidence, reliability, responsiveness, assurance, and empathy had a significant effect on student satisfaction. Based on the simultaneous test (F), all variables of physical evidence, reliability, responsiveness, assurance and empathy together have a significant effect on student satisfaction. The most dominant factor influencing student satisfaction is guarantee. \u0000 \u0000: , , , , .","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90867463","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}

引用次数: 0

PENGARUH STRATEGI PEMBERDAYAAN DINAS PERINDUSTRAN, PERDAGANGAN KOPERASI TERHADAP PENINGKATAN PENDAPATAN UMKM KOPERASI DI KOTA JAYAPURA 工业服务赋权战略、合作社贸易对查亚普拉市乌姆公里合作社收入增加的影响

DINAMIS Pub Date : 2021-12-01 DOI: 10.58839/jd.v18i2.1011

Meity Lado, Gratiana Deodata

引用次数: 0

KAJIAN TEORITIS PENGGUNAAN TURBOCHARGER TERHADAP PERFORMANSI MESIN BENSIN TIPE 3SZ-VE 1500 CC DAIHATSU TERIOS

DINAMIS Pub Date : 2021-12-01 DOI: 10.32734/dinamis.v9i2.7954

Dian Morfi Nasution, Amirsyam Nasution, Surya Darma Ginting

{"title":"KAJIAN TEORITIS PENGGUNAAN TURBOCHARGER TERHADAP PERFORMANSI MESIN BENSIN TIPE 3SZ-VE 1500 CC DAIHATSU TERIOS","authors":"Dian Morfi Nasution, Amirsyam Nasution, Surya Darma Ginting","doi":"10.32734/dinamis.v9i2.7954","DOIUrl":"https://doi.org/10.32734/dinamis.v9i2.7954","url":null,"abstract":"Kunci keuntungan dari turbocharger adalah alat ini menawarkan sebuah peningkatan yang cukup banyak dalam tenaga mesin hanya dengan sedikit menambah berat. Tujuan kajian teoritis ini adalah untuk mendapatkan parameter termodinamika mesin bensin tanpa dan dengan penggunaan turbocharger, mendapatkan performansi mesin bensin tanpa dan dengan penggunaan turbocharger, dan mendapatkan daya dan putaran turbin gas dan kompresor pada turbocharger. Dalam kajian teoritis ini menggunakan data spesifikasi teknis mesin mobil tipe 3SZ-VE. Hasil analisa termodinamika daya bersih Wnett dengan penggunaan turbocharger meningkat sebanyak 20,29% dibandingkan tanpa penggunaan turbocharger. Performansi mesin tanpa turbocharger diperoleh mep sebesar 2691,906 kPa, Pi pada putaran 4400 rpm sebesar 147,5613 kW, Ps sebesar 65,09 kW, sfc sebesar 292,675 gram/kW.jam, ηm sebesar 44,11%, dan ηv sebesar 98,46%. Performansi dengan turbocharger diperoleh mep sebesar 3238,314 kPa, Pi pada putaran 4400 rpm sebesar 177,5136 kW, Ps sebesar 65,09 kW, sfc sebesar 355,379 gram/kW.jam, ηm sebesar 36,66% dan ηv sebesar 98,45%. Daya turbocharger sebesar 3,54915 kW dengan putaran 59200 rpm pada saat putaran mesin bensin 6000 rpm.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":"166 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76879770","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}

引用次数: 0

STUDI EKSPERIMENTAL DISTILASI AIR LAUT TENAGA SURYA KEMIRINGAN GANDA SISTEM AKTIF DAN PASIF 实验蒸馏海水太阳能双倾斜性系统的实验研究

DINAMIS Pub Date : 2021-12-01 DOI: 10.32734/dinamis.v9i2.7949

Kevin V Simbolon, Himsar Ambarita

引用次数: 0

UJI PARAMETER KIMIA BATU GAMPING SEBAGAI BAHAN BAKU SEMEN PADA LOKASI PENAMBANGAN CV THIAK KELURAHAN ARDIPURA KOTA JAYAPURA

DINAMIS Pub Date : 2021-12-01 DOI: 10.58839/jd.v18i2.1000

A. Rumabar, Rolling Swempry Gaspersz

{"title":"UJI PARAMETER KIMIA BATU GAMPING SEBAGAI BAHAN BAKU SEMEN PADA LOKASI PENAMBANGAN CV THIAK KELURAHAN ARDIPURA KOTA JAYAPURA","authors":"A. Rumabar, Rolling Swempry Gaspersz","doi":"10.58839/jd.v18i2.1000","DOIUrl":"https://doi.org/10.58839/jd.v18i2.1000","url":null,"abstract":"Limestone mining owned by CV Thiak, which is located in the Ardipura II Jayapura city, has been operating for a long time. However, the utilization of limestone is only used as a mixed material in construction such as offices, schools, brdges and others. One sample of the use og limestone is a raw material for making cement. This study aims to determine the chemical content of limestone belonging to CV Thiak so that it can also be used as a raw material for making cement. The research stage is at the beginning with initial of reaserch location and mapping to determine the coordinates of the sampling location. Samples were taken at two different locations. Next, the stage of taking limestone as a sample for testing. The next stage is the description of the limestone to determine of type of limestone. The stage of sending limestone samples to the Mineral Engineering Laboratory in Bandung city to determine the chemical content contained in the sample. The last stage is the analysis of chemical parameters as data from laboratory test using the X-Ray Fluoresence method. Some of the chemical parameters analyzed were CaCO3, CaO, MgO, Al2O3, Fe2O3 and SiO2. From the results of the analysis, it is known that the two limestone sample belonging to CV Thiak have very high CaCO3 content. The CaCO3 at the first point has a level of 98,78 %. Meanwhile, the sample at the second point has a CaCO3 content of 98,38 %. For levels of CaO, the first point is 55,35 % and the second point is 55,13 %. By looking at the value of the content of CaCO3 and CaO, the quality of CV Thiak’s limestone is very good and meets the standars as cement raw materials, according to Portland cement standards","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83604313","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}

引用次数: 0

UTILITAS MEDIA SOSIAL DALAM PENINGKATAN LITERASI POLITIK MAHASISWA UNIVERSITAS SAINS DAN TEKNOLOGI JAYAPURA” 社会媒体工具提高查亚普拉科学技术学院学生的政治素权"

DINAMIS Pub Date : 2021-12-01 DOI: 10.58839/jd.v18i2.923

Bonefasius Bao, Putri Anastasya Samosir

{"title":"UTILITAS MEDIA SOSIAL DALAM PENINGKATAN LITERASI POLITIK MAHASISWA UNIVERSITAS SAINS DAN TEKNOLOGI JAYAPURA”","authors":"Bonefasius Bao, Putri Anastasya Samosir","doi":"10.58839/jd.v18i2.923","DOIUrl":"https://doi.org/10.58839/jd.v18i2.923","url":null,"abstract":"The development of information technology has penetrated in all joints of human life. Sosial media, which initially served only as a means of self-existence, now metamorphosed to influence a country's political climate. In the era of reform the development of the use of sosial media is very massive for the expansion of democracy. Not infrequently his presence makes democracy always present paradoxical. \u0000The purpose of this study is to find out the Utility of Sosial Media in Improving Political Literacy of Jayapura University of Science and Technology Students. As well as knowing how much sosial media provides Utility in Improving Student Political Literacy. This research uses a quantitative approach whose research procedures produce descriptive data in the form of numbers that are then spelled out with words that get a clear picture of the observed behavioral tendencies. \u0000The results showed that 24% of respondents had an interest and interest in listening and improving their literacy through sosial media. Most respondents expressed little interest in discussions about politics (76%). Listening to these results it can be concluded that the utility of sosial media in improving the political literacy of USTJ students is still lacking. The importance of political education for students is a preference to help and provide a basic understanding to understand the dynamics of government politics in local and global contexts.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90206526","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}

引用次数: 0

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