Al-Cu alloys are promising material for engineering field due to their good mechanical properties. These characteristics could be obtained by addition of some elements and correct selected processes parameter. The purposes of this current study to investigate the effect of Cu contents and compaction pressure on microstructure evolution and mechanical properties of the Al-Cu alloy synthesized by powder metallurgy route. High purity Al and Cu elements are used as starting material with composition (21.0, 24.0, 27.0, 30.0, and 33.0) wt.%Cu with 210 MPa of compaction pressure. The varying compaction pressure 160, 180 and 180 MPa were carried for 15 minute holding time. Furthermore, a conventional sintering at 500oC for 1 hour holding time take place. The hardness test resulted that the increases of Cu contents was successfully improved the hardness, which is the maximum hardness 53.2 HV and 71.47 MPa of the compressive strength obtained by 33wt. Cu addition. On the other hand, the varying of compaction pressure resulted the maximum hardness and compressive strength are 25.6 HV and 60.8 MPa respectively for 200 MPa. The microstructure observation shows the increases of Cu promoted more Cu elements dispersed between the aluminum rinh matrix. The increase of compressive strength is encourages finer Al-Cu grain in the microstructure.
{"title":"The role of Cu element and compaction pressure on microstructure and mechanical Properties of Al-Cu binary alloy synthesized by powder metallurgy","authors":"None Suprianto, None Muhammad Ramadhan, None Almi Syafroza, None Farida Ariani","doi":"10.32734/dinamis.v11i1.11940","DOIUrl":"https://doi.org/10.32734/dinamis.v11i1.11940","url":null,"abstract":"Al-Cu alloys are promising material for engineering field due to their good mechanical properties. These characteristics could be obtained by addition of some elements and correct selected processes parameter. The purposes of this current study to investigate the effect of Cu contents and compaction pressure on microstructure evolution and mechanical properties of the Al-Cu alloy synthesized by powder metallurgy route. High purity Al and Cu elements are used as starting material with composition (21.0, 24.0, 27.0, 30.0, and 33.0) wt.%Cu with 210 MPa of compaction pressure. The varying compaction pressure 160, 180 and 180 MPa were carried for 15 minute holding time. Furthermore, a conventional sintering at 500oC for 1 hour holding time take place. The hardness test resulted that the increases of Cu contents was successfully improved the hardness, which is the maximum hardness 53.2 HV and 71.47 MPa of the compressive strength obtained by 33wt. Cu addition. On the other hand, the varying of compaction pressure resulted the maximum hardness and compressive strength are 25.6 HV and 60.8 MPa respectively for 200 MPa. The microstructure observation shows the increases of Cu promoted more Cu elements dispersed between the aluminum rinh matrix. The increase of compressive strength is encourages finer Al-Cu grain in the microstructure.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136369881","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}
Lilis Indrayani, Z. Zulkarnain, M. N. Rizky N S, M. Mardewi
Abstract Website-based Smilax cream sales information system at PT. Cenderawasi emas construction of an online and computerized sales system that is expected to be able to reach sales broadly making it easier to promote products to consumers' sales management. Making this information system uses the waterfall research method, in the stages of analysis, design, coding, testing to maintenance, this information system is made using the programming languages PHP, JavaScript, HTML, CSS, and MySQL. The system built can provide complete information about sales, product stock, and customers. So that the system that is built becomes a company tool for conducting sales activities. Based on the results of testing and implementation, it can be concluded that the Sales Information System for Cream Smilax at PT. Cendrawasih Emas Construction can be managed properly and meet the needs of the company.
摘要:PT. Cenderawasi公司基于网站的Smilax面霜销售信息系统正在建设一个在线的、计算机化的销售系统，期望能够达到广泛的销售范围，便于对消费者进行产品的推广和销售管理。本信息系统的开发采用瀑布式研究方法，从分析、设计、编码、测试到维护等阶段，采用PHP、JavaScript、HTML、CSS、MySQL等编程语言完成。所构建的系统可以提供关于销售、产品库存和客户的完整信息。这样所建立的系统就成为公司进行销售活动的工具。根据测试和实施的结果，可以得出结论，PT. Cendrawasih Emas Construction公司的Cream Smilax销售信息系统可以正常管理，满足公司的需求。
{"title":"RANCANG BANGUN SISTEM INFORMASI PENJUALAN CREAM SMILAX BERBASIS WEBSITE PADA PT.CENDRAWASIH EMAS KONSTRUKSI","authors":"Lilis Indrayani, Z. Zulkarnain, M. N. Rizky N S, M. Mardewi","doi":"10.58839/jd.v19i2.1158","DOIUrl":"https://doi.org/10.58839/jd.v19i2.1158","url":null,"abstract":"Abstract \u0000Website-based Smilax cream sales information system at PT. Cenderawasi emas construction of an online and computerized sales system that is expected to be able to reach sales broadly making it easier to promote products to consumers' sales management. Making this information system uses the waterfall research method, in the stages of analysis, design, coding, testing to maintenance, this information system is made using the programming languages PHP, JavaScript, HTML, CSS, and MySQL. The system built can provide complete information about sales, product stock, and customers. So that the system that is built becomes a company tool for conducting sales activities. Based on the results of testing and implementation, it can be concluded that the Sales Information System for Cream Smilax at PT. Cendrawasih Emas Construction can be managed properly and meet the needs of the company.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81050134","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}
Tingkat partisipasi pemilih pada setiap Pemilu selalu mengalami pasang surut. Dinamika partisipasi pemilih ini merupakan salah satu indicator dalam mewujudkan demokrasi di sebuah negara. Peneletian ini bertujuan untuk melihat seberapa besar dampak dari dibentuknya relawan demokrasi untuk meningkatkan kesadaran pemilih menyampaikan hak konstitusinya dengan memberikan suaranya di tempat pemungutan suara (TPS). Metode yang digunakan oleh penulis dalam penelitian ini adalah dengan menentukan responden secara bertujuan sesuai dengan topik yang akan diteliti, merumuskan daftar pertanyaan yang akan digunakan saat wawancara dengan responden. Selain menggunakan Teknik wawancara, penulis juga menggunakan Teknik observasi dan studi literatur/kajian kepustakaan untuk memperkaya tulisan ini. Studi literatur/kajian Pustaka dengan menggunakan tulisan-tulisan sebelumnya yang ada relevansinya dengan topik yang diteliti selain buku-buku teks. Dari penelitian ini dapat disimpulkan bahwa relawan demokrasi merupakan salah satu upaya yang dilakukan oleh Komisi Pemilihan Umum (KPU) untuk meningkatkan partisipasi pemilih pada pemilu 2019. Namun demikian kelompok ini belum sepenuhnya dikenal oleh masyarakat umum terutama masyarakat yang ada di Distrik Heram. KPU Kota Jayapura belum memaksimalkan peran dari relawan domokrasi. Kecenderungan partisipasi pemilih di Distrik Heram yang meningkat tidak dikarenakan peran relawan demokrasi. untuk meningkatkan partisipasi pemilih pada Pemilu kedepannya maka relawan demokrasi harus di isi oleh sumberdaya manusia yang memahami seluk beluk tentang kepemiluan dan mempunyai kepedulian yang tinggi terhadap Pemilu. Selain relawan demokrasi, harus juga digunakan metode pendekatan melalui tokoh-tokoh pemuda, kaum perempuan, adat, agama, tokoh masyarakat dan lembaga-lembaga pendidikan secara masiv agar dapat meningkatkan partisipasi pemilih dalam Pemilu khusunya di Distrik Heram
{"title":"RELAWAN DEMOKRASI PADA PEMILU TAHUN 2019 DI DISTRIK HERAM","authors":"Syamsudin Usman, S. Sahriani, Apner Klaru","doi":"10.58839/jd.v19i2.1155","DOIUrl":"https://doi.org/10.58839/jd.v19i2.1155","url":null,"abstract":"Tingkat partisipasi pemilih pada setiap Pemilu selalu mengalami pasang surut. Dinamika partisipasi pemilih ini merupakan salah satu indicator dalam mewujudkan demokrasi di sebuah negara. Peneletian ini bertujuan untuk melihat seberapa besar dampak dari dibentuknya relawan demokrasi untuk meningkatkan kesadaran pemilih menyampaikan hak konstitusinya dengan memberikan suaranya di tempat pemungutan suara (TPS). \u0000Metode yang digunakan oleh penulis dalam penelitian ini adalah dengan menentukan responden secara bertujuan sesuai dengan topik yang akan diteliti, merumuskan daftar pertanyaan yang akan digunakan saat wawancara dengan responden. Selain menggunakan Teknik wawancara, penulis juga menggunakan Teknik observasi dan studi literatur/kajian kepustakaan untuk memperkaya tulisan ini. Studi literatur/kajian Pustaka dengan menggunakan tulisan-tulisan sebelumnya yang ada relevansinya dengan topik yang diteliti selain buku-buku teks. \u0000Dari penelitian ini dapat disimpulkan bahwa relawan demokrasi merupakan salah satu upaya yang dilakukan oleh Komisi Pemilihan Umum (KPU) untuk meningkatkan partisipasi pemilih pada pemilu 2019. Namun demikian kelompok ini belum sepenuhnya dikenal oleh masyarakat umum terutama masyarakat yang ada di Distrik Heram. KPU Kota Jayapura belum memaksimalkan peran dari relawan domokrasi. Kecenderungan partisipasi pemilih di Distrik Heram yang meningkat tidak dikarenakan peran relawan demokrasi. untuk meningkatkan partisipasi pemilih pada Pemilu kedepannya maka relawan demokrasi harus di isi oleh sumberdaya manusia yang memahami seluk beluk tentang kepemiluan dan mempunyai kepedulian yang tinggi terhadap Pemilu. Selain relawan demokrasi, harus juga digunakan metode pendekatan melalui tokoh-tokoh pemuda, kaum perempuan, adat, agama, tokoh masyarakat dan lembaga-lembaga pendidikan secara masiv agar dapat meningkatkan partisipasi pemilih dalam Pemilu khusunya di Distrik Heram \u0000 ","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90541073","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}
Basuh - Suhartawan, S. Iriyanto, Alfret B. Alfons, Daawia Daawia
Utilizing hygienic and sanitary water is absolutely necessary to avoid unwanted negative impacts. This research was conducted in PIR 2, Arso, Keerom Regency from August to October 2022. This research aims to determine the quality status of dug well water by using the pollution index method with 18 (eighteen) water pollution parameters namely: physical parameters (turbidity, color, TDS, temperature, taste and smell), chemical parameters (pH, iron, fluoride, hardness, manganese, nitrate, nitrite, cyanide, detergents and total pesticides) as well as biological parameters (total Coliform and Escherichia coli). The samples in this research were taken from four sample points (research stations), namely station 1 (line 1), station 2 (line 2), station 3 (line 3) and station 4 (line 4). The results showed that the water quality status of dug wells at stations 2 and 3 obtained a pollution index of 10.28 and 12.72 respectively and classified as heavily polluted, while at stations 1 and 4 the pollution index was 2.38 and 4.80 respectively and both stations were classified as lightly polluted. Water parameters that did not qualify water quality standards were turbidity, iron content and Escherichia coli. A suitable water management plan to fulfill the quality standard requirements was the well water must be filtered using zeolite media, sand, palm fiber and activated carbon (coconut shell charcoal) and added a little chlorine (chlorine) or alum to the reservoir before filtration.
{"title":"STATUS MUTU AIR SUMUR GALI DAN PENGENDALIANNYA DI PEMUKIMAN PIR2 ARSO KABUPATEN KEEROM","authors":"Basuh - Suhartawan, S. Iriyanto, Alfret B. Alfons, Daawia Daawia","doi":"10.58839/jd.v19i2.1149","DOIUrl":"https://doi.org/10.58839/jd.v19i2.1149","url":null,"abstract":"Utilizing hygienic and sanitary water is absolutely necessary to avoid unwanted negative impacts. This research was conducted in PIR 2, Arso, Keerom Regency from August to October 2022. This research aims to determine the quality status of dug well water by using the pollution index method with 18 (eighteen) water pollution parameters namely: physical parameters (turbidity, color, TDS, temperature, taste and smell), chemical parameters (pH, iron, fluoride, hardness, manganese, nitrate, nitrite, cyanide, detergents and total pesticides) as well as biological parameters (total Coliform and Escherichia coli). The samples in this research were taken from four sample points (research stations), namely station 1 (line 1), station 2 (line 2), station 3 (line 3) and station 4 (line 4). The results showed that the water quality status of dug wells at stations 2 and 3 obtained a pollution index of 10.28 and 12.72 respectively and classified as heavily polluted, while at stations 1 and 4 the pollution index was 2.38 and 4.80 respectively and both stations were classified as lightly polluted. Water parameters that did not qualify water quality standards were turbidity, iron content and Escherichia coli. A suitable water management plan to fulfill the quality standard requirements was the well water must be filtered using zeolite media, sand, palm fiber and activated carbon (coconut shell charcoal) and added a little chlorine (chlorine) or alum to the reservoir before filtration.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79016214","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}
Tujuan dari penelitian ini adalah untuk mengetahui kinerja dari turbin crossflow dengan penambahan spiral pengarah pada runner turbin untuk pengendalian aliran internal. Pada penelitian ini akan menganalisa kinerja turbin dengan penambahan spiral pengarah pada turbin crossflow. Metode yang dapat digunakan pada penelitian ini adalah eksperimen laboratorium dengan tujuan akhir perhitungan menentukan torsi, daya dan efisiensi pada turbin. Berdasarkan dari hasil analisis dan pengolahan data pada turbin cossflow , diameter runner 20 cm dan dengan penambahan spiral pengarah aliran, besar efisiensi yang dihasilkan meningkat. Dengan peningkatan torsi pada pembebanan penuh 4N, dan daya keluaran turbin (Pout) diperoleh maksimal 135,104 watt pada bukaan penuh nozzle 100%.
{"title":"ANALISA KINERJA TURBIN ARUS LINTANG DENGAN PENAMBAHAN SPIRAL PENGARAH PADA RUNNER TURBIN","authors":"Jusuf Haurissa, Bambang Yulianto","doi":"10.58839/jd.v19i2.1137","DOIUrl":"https://doi.org/10.58839/jd.v19i2.1137","url":null,"abstract":"Tujuan dari penelitian ini adalah untuk mengetahui kinerja dari turbin crossflow dengan penambahan spiral pengarah pada runner turbin untuk pengendalian aliran internal. Pada penelitian ini akan menganalisa kinerja turbin dengan penambahan spiral pengarah pada turbin crossflow. Metode yang dapat digunakan pada penelitian ini adalah eksperimen laboratorium dengan tujuan akhir perhitungan menentukan torsi, daya dan efisiensi pada turbin. \u0000Berdasarkan dari hasil analisis dan pengolahan data pada turbin cossflow , diameter runner 20 cm dan dengan penambahan spiral pengarah aliran, besar efisiensi yang dihasilkan meningkat. Dengan peningkatan torsi pada pembebanan penuh 4N, dan daya keluaran turbin (Pout) diperoleh maksimal 135,104 watt pada bukaan penuh nozzle 100%.","PeriodicalId":11432,"journal":{"name":"DINAMIS","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":"91430655","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}
Abstrak Tujuan dilakukannya penelitian ini adalah untuk mengetahui sifat kimia tanah pada lahan penambangan terbuka batu gamping milik CV. Thiakh yang terletak di distrik Jayapura Selatan kota Jayapura provinsi Papua. Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian eksperimental dengan tiga tahapan. Tahapan pertama yaitu observasi lokasi penelitian pada lahan penambangan, tahapan kedua adalah pengambilan material tanah sebagai sampel. Tahapan yang ketiga adalah analisis sampel yang dilakukan di laboratorium Badan Penelitian dan Pengembangan Energi dan Sumber Daya Mineral Pusat Penelitian dan Pengembangan Teknologi Mineral dan Batubara Kementerian Energi dan Sumber Daya Mineral Republik Indonesia. Sampel tanah diambil pada dua lokasi dengan tiga kedalaman yang berbeda. Lokasi pertama diambil dekat dengan bengkel yang berada pada lokasi penambangan. Kedalaman tanah pada lokasi yang pertama adalah 15 cm dan 30 cm. Lokasi kedua di ambil di daerah penambangan batu gamping dengan kedalaman 50 cm. Dari hasil uji laboratorium diketahui bahwa nilai pH tanah pada lokasi pertama adalah 8,86. Sedangkan nilai pH pada lokasi kedua adalah 9,18 (30 cm) dan 8,47 (50 cm). Untuk beberapa parameter kimia lainnya seperti phospor, kalium, natrium, magnesium, nitrogen total juga memiliki kadar yang rendah. Kata kunci : Penambangan Terbuka, Batu Gamping, Sifat Kimia Tanah, Material Tanah,pH Abstract The purpose of this study was determine the chemical properties of the soil in the limestone open pie mining owned by CV Thiak is located in the South Jayapura district Jayapura city, Papua province. The research method used in this study is an experimental research method with three stages. The first stage is observing the research location on mining land, the second stage is taking soil material as a sample. The third stage is sample analysis carried out in the laboratory of the Research and Development Agency for Energy and Mineral Resources, the Center for Research and Development of Mineral and Coal Technology, Ministry of Energy and Mineral Resources of the Republic of Indonesia. Soil samples were taken at two locations with three different depths. The first location was taken close to the workshop at the mining site. The depth of the soil at the first location is 15 cm and 30 cm. The second location was taken in a limestone mining area with a depth of 50 cm. from the results of laboratory test it is known that the soil pH value at the first location is 8,86. While the pH values at the second location were 9,18 (30 cm) and 8,47 (50 cm). For several other chemical parameters such as phosporus, potassium, sodium, magnesium, total nitrogen also has low levels. Keywords : Open Pit Mining, Limestone, Soil Chemical Properties, Soil Material, pH
抽象做这项研究的目的是了解露天采矿用地的石灰石土壤化学性质的简历。Thiakh位于巴布亚省南部城市Jayapura地区。本研究中使用的研究方法是实验研究的方法,而不是三个阶段。第一阶段是对矿场的地点观测，第二阶段是提取土壤材料作为样本。第三个阶段是分析样品在实验室进行的研究机构和研究中心能源和矿产资源开发煤炭和矿物技术的发展,印度尼西亚共和国外交部能源和矿产资源。土壤样本是在两个不同深度的地点采集的。第一次拍摄地点附近的车间在采矿地点。地底地点的第一个阶段是15厘米,30厘米(12英寸)。第二个地点是一个30英寸深的石灰岩采石场。实验室测试发现第一个地点的土壤pH值是8.86。而第二个位置的pH值为9.18(30厘米)和8.47(50厘米)。其他的一些化学参数,如磷、钾、钠、镁,总氮也有低的水平。关键词:露天采矿,石灰石土壤,材料化学的本性,pH抽象《化学研究的目的,这是个重大财产的石灰石境土地开放派矿业owned by Thiak简历是定位在《南Jayapura Jayapura区城,巴布亚省。这项研究使用的研究方法是一种三年级的研究方法。《研究第一阶段是observing位置在挖掘土地》,第二个阶段是应试的土地美国材料样品。第三阶段是样品分析carried out》《Research and Development Agency for实验室能源和矿物资源,The Center for Research and Development of矿物质和煤炭技术,月报》《印度尼西亚共和国能源和矿物资源。土地样本在某种程度两个和三个不同的depths locations。《第一位置就很接近《矿业工作坊at site。《土地深度at The第一位置是15厘米,30厘米(12英寸)。第二个位置是收石灰石a和a的深度挖掘区域50厘米。从《results of实验室测试是知道那个土地价值at the第一位置是8.86 pH值。而《第二个位置是9,18 pH价值观at(30厘米)和8.47(50厘米)。美国为好几个其他化学parameters如此phosporus氮,钾,钠,镁,完全也有低水平。安装:开放坑挖掘石灰石,土地化学物质财产,土地,pH值
{"title":"ANALISIS KARAKTERISTIK KIMIA TANAH PADA LAHAN PENAMBANGAN BATU GAMPING CV THIAKH KOTA JAYAPURA PROVINSI PAPUA","authors":"A. Rumabar","doi":"10.58839/jd.v19i2.1134","DOIUrl":"https://doi.org/10.58839/jd.v19i2.1134","url":null,"abstract":"Abstrak \u0000Tujuan dilakukannya penelitian ini adalah untuk mengetahui sifat kimia tanah pada lahan penambangan terbuka batu gamping milik CV. Thiakh yang terletak di distrik Jayapura Selatan kota Jayapura provinsi Papua. Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian eksperimental dengan tiga tahapan. Tahapan pertama yaitu observasi lokasi penelitian pada lahan penambangan, tahapan kedua adalah pengambilan material tanah sebagai sampel. Tahapan yang ketiga adalah analisis sampel yang dilakukan di laboratorium Badan Penelitian dan Pengembangan Energi dan Sumber Daya Mineral Pusat Penelitian dan Pengembangan Teknologi Mineral dan Batubara Kementerian Energi dan Sumber Daya Mineral Republik Indonesia. Sampel tanah diambil pada dua lokasi dengan tiga kedalaman yang berbeda. Lokasi pertama diambil dekat dengan bengkel yang berada pada lokasi penambangan. Kedalaman tanah pada lokasi yang pertama adalah 15 cm dan 30 cm. Lokasi kedua di ambil di daerah penambangan batu gamping dengan kedalaman 50 cm. Dari hasil uji laboratorium diketahui bahwa nilai pH tanah pada lokasi pertama adalah 8,86. Sedangkan nilai pH pada lokasi kedua adalah 9,18 (30 cm) dan 8,47 (50 cm). Untuk beberapa parameter kimia lainnya seperti phospor, kalium, natrium, magnesium, nitrogen total juga memiliki kadar yang rendah. \u0000 \u0000 \u0000Kata kunci : Penambangan Terbuka, Batu Gamping, Sifat Kimia Tanah, Material Tanah,pH \u0000 \u0000 \u0000Abstract \u0000The purpose of this study was determine the chemical properties of the soil in the limestone open pie mining owned by CV Thiak is located in the South Jayapura district Jayapura city, Papua province. The research method used in this study is an experimental research method with three stages. The first stage is observing the research location on mining land, the second stage is taking soil material as a sample. The third stage is sample analysis carried out in the laboratory of the Research and Development Agency for Energy and Mineral Resources, the Center for Research and Development of Mineral and Coal Technology, Ministry of Energy and Mineral Resources of the Republic of Indonesia. Soil samples were taken at two locations with three different depths. The first location was taken close to the workshop at the mining site. The depth of the soil at the first location is 15 cm and 30 cm. The second location was taken in a limestone mining area with a depth of 50 cm. from the results of laboratory test it is known that the soil pH value at the first location is 8,86. While the pH values at the second location were 9,18 (30 cm) and 8,47 (50 cm). For several other chemical parameters such as phosporus, potassium, sodium, magnesium, total nitrogen also has low levels. \u0000 \u0000 \u0000Keywords : Open Pit Mining, Limestone, Soil Chemical Properties, Soil Material, pH","PeriodicalId":11432,"journal":{"name":"DINAMIS","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":"73287559","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}
Development activities including structuring traditional areas that have been going on for the past two decades are often carried out only based on economic considerations and area functions. The more dominant tendency is to ignore considerations of traditional and historical values. There is a shift towards social and cultural values along with a global phenomenon, namely the absorption of economic or financial benefits. This shift in values has an impact on changes in the built environment, such as changes in the face of the environment, both from the environmental and building aspects. Therefore this revitalization activity aims to revive the traditional values and history of the area in the form of traditional building arrangements. The method used is the literary method by conducting a study on several literary sources in the form of reports on revitalization activities and articles related to local wisdom and revitalization of traditional areas. The results obtained show that there are changes in the area that tend to bring out traditional values in the buildings resulting from the revitalization of the area which are appreciated by the people who observe the results of this revitalization activity. The conclusion that can be seen is that visible efforts to revive traditional and historic values in the form of traditional buildings in the development area are enough to give the area an image as a traditional area.
{"title":"KEARIFAN LOKAL DALAM PEMBANGUNAN STUDI KASUS: REVITALISASI BANGUNAN TRADISIONAL DI ILAGA, KABUPATEN PUNCAK - PAPUA","authors":"M. T. Zebua, M. A. Salipu, Sugito Utomo","doi":"10.58839/jd.v19i2.1111","DOIUrl":"https://doi.org/10.58839/jd.v19i2.1111","url":null,"abstract":"Development activities including structuring traditional areas that have been going on for the past two decades are often carried out only based on economic considerations and area functions. The more dominant tendency is to ignore considerations of traditional and historical values. There is a shift towards social and cultural values along with a global phenomenon, namely the absorption of economic or financial benefits. This shift in values has an impact on changes in the built environment, such as changes in the face of the environment, both from the environmental and building aspects. Therefore this revitalization activity aims to revive the traditional values and history of the area in the form of traditional building arrangements. The method used is the literary method by conducting a study on several literary sources in the form of reports on revitalization activities and articles related to local wisdom and revitalization of traditional areas. The results obtained show that there are changes in the area that tend to bring out traditional values in the buildings resulting from the revitalization of the area which are appreciated by the people who observe the results of this revitalization activity. The conclusion that can be seen is that visible efforts to revive traditional and historic values in the form of traditional buildings in the development area are enough to give the area an image as a traditional area.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74497828","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}
Honey pineapple is a type of pineapple that is favored by people in Papua. Its small shape but sweet taste is the advantage of this honey pineapple. The pineapple variety that is generally cultivated in Papua is the Smooth cayenne type. In Papua, honey pineapple is better known as wamena pineapple. The maturity of the fruit is very easy to affect the freshness of the fruit, mechanical damage and the nutritional content of the fruit contained in it. Generally, farmers prefer to harvest pineapple fruits that are still unripe and then muffled. Therefore, this study was conducted to determine the effect of the maturity level of honey pineapple fruit in Jayapura on vitamin C levels and sugar levels. From the results of the study, it was shown that the pineapple fruit of tree ripe honey contains sugar cof 12% while in pineapple honey peram sugar content of 10%.
{"title":"KANDUNGAN GULA BUAH NANAS MADU (Ananas comosus L.merr) PADA TINGKAT KEMATANGAN YANG BERBEDA","authors":"Novita Condro, S. Y. Stefanie","doi":"10.58839/jd.v19i2.1175","DOIUrl":"https://doi.org/10.58839/jd.v19i2.1175","url":null,"abstract":"Honey pineapple is a type of pineapple that is favored by people in Papua. Its small shape but sweet taste is the advantage of this honey pineapple. The pineapple variety that is generally cultivated in Papua is the Smooth cayenne type. In Papua, honey pineapple is better known as wamena pineapple. The maturity of the fruit is very easy to affect the freshness of the fruit, mechanical damage and the nutritional content of the fruit contained in it. Generally, farmers prefer to harvest pineapple fruits that are still unripe and then muffled. Therefore, this study was conducted to determine the effect of the maturity level of honey pineapple fruit in Jayapura on vitamin C levels and sugar levels. From the results of the study, it was shown that the pineapple fruit of tree ripe honey contains sugar cof 12% while in pineapple honey peram sugar content of 10%.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84390902","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}
Rolling Swempry Gaspersz, Victor Isak Semuel Ajatanoi, Ery Ferdyan Ham Ayomi
Akan dibangunnya perusahaan tambang baru di daerah Jalan Buper Waena, sehingga ada beberapa hal seperti pengadaan alat bongkar muat dan alat angkut yang harus diperhatikan, karena berkaitan dengan keberlangsungan dan peningkatan produksi Karena penambangan.Merencanakan pengadaan dan jumlah alat bongkar muat dan alat angkut yang dipakai untuk merencanakan jenis dan jumlah alat bongkar dan alat angkut yang akan digunakan. Metode penelitian yang digunakan adalah metode kualitatif dengan teknik pengambilan data yaitu observasi dan studi literatur unuk mendapatkan data primer dan data sekunder. Jenis alat gali yang dibutuhkan pada rencana penambangan adalah Excavator Hitachi ZX200 PC Jenis alat angkut yang dibutuhkan pada rencana penambangan adalah Dump Truck Hino 300 Dutro 130 HD. Jumlah alat gali-muat Excavator Hitachi ZX200 PC yang dipesan sebanyak 3 buah Jumlah alat angkut Dump Truck Hino 300 Dutro 130 HD yang dipesan sebanyak 10 buah.Alat gali-muat yang digunakan adalah Excavator Hitachi ZX200 PC dengan kapasitas bucket 0,88 m^3 dengan target produksi sebanyak 764,4 m^3/ hari. Alat angkut yang digunakan adalah Dump Truck Hino 300 Dutro 130 HD dengan kapasitas bucket 5 m^3 dengan target produksi sebanyak 1192464 ton / tahun. Jumlah alat gali-muat yang dibutuhkan sebanyak 3 buah. Jumlah alat angkut yang dibutuhkan sebanyak 10 buah.
{"title":"ANALISA JOB SITE COMPONENT UNTUK PENGADAAN ALAT BONGKAR MUAT DAN ALAT ANGKUT LOKASI RENCANA PENAMBANGAN BATUAN ANDESIT DI JALAN BUPER WAENA DISTRIK HERAM KELURAHAN HEDAM KOTA JAYAPURA PROVINSI PAPUA","authors":"Rolling Swempry Gaspersz, Victor Isak Semuel Ajatanoi, Ery Ferdyan Ham Ayomi","doi":"10.58839/jd.v19i1.1100","DOIUrl":"https://doi.org/10.58839/jd.v19i1.1100","url":null,"abstract":"Akan dibangunnya perusahaan tambang baru di daerah Jalan Buper Waena, sehingga ada beberapa hal seperti pengadaan alat bongkar muat dan alat angkut yang harus diperhatikan, karena berkaitan dengan keberlangsungan dan peningkatan produksi Karena penambangan.Merencanakan pengadaan dan jumlah alat bongkar muat dan alat angkut yang dipakai untuk merencanakan jenis dan jumlah alat bongkar dan alat angkut yang akan digunakan. Metode penelitian yang digunakan adalah metode kualitatif dengan teknik pengambilan data yaitu observasi dan studi literatur unuk mendapatkan data primer dan data sekunder. Jenis alat gali yang dibutuhkan pada rencana penambangan adalah Excavator Hitachi ZX200 PC Jenis alat angkut yang dibutuhkan pada rencana penambangan adalah Dump Truck Hino 300 Dutro 130 HD. Jumlah alat gali-muat Excavator Hitachi ZX200 PC yang dipesan sebanyak 3 buah Jumlah alat angkut Dump Truck Hino 300 Dutro 130 HD yang dipesan sebanyak 10 buah.Alat gali-muat yang digunakan adalah Excavator Hitachi ZX200 PC dengan kapasitas bucket 0,88 m^3 dengan target produksi sebanyak 764,4 m^3/ hari. Alat angkut yang digunakan adalah Dump Truck Hino 300 Dutro 130 HD dengan kapasitas bucket 5 m^3 dengan target produksi sebanyak 1192464 ton / tahun. Jumlah alat gali-muat yang dibutuhkan sebanyak 3 buah. Jumlah alat angkut yang dibutuhkan sebanyak 10 buah.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74872816","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}
Toko Aneka Kue Irene Jayapura merupakan toko yang melayani masyarakat untuk penyediakan menu aneka kue. Untuk pemesanan dan pembelian kue di toko aneka kue, khususnya yang berdomisili Jayapura masih dengan cara telepon atau hanya langsung datang ke toko, karena semakin banyak yang memesan dan membeli kue secara langsung ke toko membuat pencatatan penjualan dan pemesanan tidak terkontrol ada yang tercatat dan ada juga yang tidak tercatat sedangkan pencatatan penjualan dan pemesanan masih menggunakan buku besar sehingga sering terjadi ke tidak sesuaian antara pemasukan uang dan dengan jumlah kue yang terjual. Tujuan Penelitian yaitu Merancang Aplikasi Penjualan dan Pemesanan Kue Berbasis Web Pada Toko Aneka Kue Irene Jayapura. Dimana dalam membangun sistem ini digunakan alat bantu pengembangan sistem yaitu Data Flow Diagram (DFD), Context Diagram, Kerelasian (KE) dan dengan menggunakan Bahasa pemrograman PHP dan MYSQL sebagai databasenya. Hasil Penelitian berupa Sistem dapat mempermudah pelanggan untuk melakukan pemesanan dan pembelian secara langsung Kue di toko Aneka Kue Irene dengan mudah dan lebih efısien tanpa harus mengunjungi toko terlebih dahulu, dalam sistem ini pelanggan atau konsumen juga mendapatkan informasi jenis-jenis kue yang siap di beli. Sistem bisa mencetak laporan pesanan dan struk pesanan.
{"title":"RANCANG BANGUN APLIKSI PENJUALAN DAN PEMESANAN KUE BERBASIS WEB (Studi Kasus : Toko Aneka Kue Irene Jayapura)","authors":"W. Widodo, Iyus Supriadi","doi":"10.58839/jd.v19i1.1099","DOIUrl":"https://doi.org/10.58839/jd.v19i1.1099","url":null,"abstract":"Toko Aneka Kue Irene Jayapura merupakan toko yang melayani masyarakat untuk penyediakan menu aneka kue. Untuk pemesanan dan pembelian kue di toko aneka kue, khususnya yang berdomisili Jayapura masih dengan cara telepon atau hanya langsung datang ke toko, karena semakin banyak yang memesan dan membeli kue secara langsung ke toko membuat pencatatan penjualan dan pemesanan tidak terkontrol ada yang tercatat dan ada juga yang tidak tercatat sedangkan pencatatan penjualan dan pemesanan masih menggunakan buku besar sehingga sering terjadi ke tidak sesuaian antara pemasukan uang dan dengan jumlah kue yang terjual. \u0000Tujuan Penelitian yaitu Merancang Aplikasi Penjualan dan Pemesanan Kue Berbasis Web Pada Toko Aneka Kue Irene Jayapura. Dimana dalam membangun sistem ini digunakan alat bantu pengembangan sistem yaitu Data Flow Diagram (DFD), Context Diagram, Kerelasian (KE) dan dengan menggunakan Bahasa pemrograman PHP dan MYSQL sebagai databasenya. \u0000Hasil Penelitian berupa Sistem dapat mempermudah pelanggan untuk melakukan pemesanan dan pembelian secara langsung Kue di toko Aneka Kue Irene dengan mudah dan lebih efısien tanpa harus mengunjungi toko terlebih dahulu, dalam sistem ini pelanggan atau konsumen juga mendapatkan informasi jenis-jenis kue yang siap di beli. Sistem bisa mencetak laporan pesanan dan struk pesanan.","PeriodicalId":11432,"journal":{"name":"DINAMIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74239622","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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