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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 201 - 265 of 265 Journals sorted by number of followers
Patterns     Open Access   (Followers: 7)
Research     Open Access   (Followers: 5)
Quantum Science and Technology     Hybrid Journal   (Followers: 5)
History of Science and Technology     Open Access   (Followers: 5)
Revista Científica de la Universidad Nacional del Este     Open Access   (Followers: 5)
Research Policy : X     Open Access   (Followers: 4)
Data     Open Access   (Followers: 4)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 4)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
People and Nature     Open Access   (Followers: 4)
Journal of Composites Science     Open Access   (Followers: 4)
MUST : Journal of Mathematics Education, Science and Technology     Open Access   (Followers: 4)
Frontiers in Climate     Open Access   (Followers: 4)
Journal of Big History     Open Access   (Followers: 3)
Discover Sustainability     Open Access   (Followers: 3)
Science & Technology Studies     Open Access   (Followers: 3)
Orbis Cógnita : Revista Científica     Open Access   (Followers: 3)
Citizen Science : Theory and Practice     Open Access   (Followers: 2)
Middle European Scientific Bulletin     Open Access   (Followers: 2)
Indonesian Journal of Science and Mathematics Education     Open Access   (Followers: 2)
International Journal of Culture and Modernity     Open Access   (Followers: 2)
International Journal of Research in Science     Open Access   (Followers: 1)
iScience     Open Access   (Followers: 1)
Scientonomy : Journal for the Science of Science     Open Access   (Followers: 1)
Uluslararası Bilimsel Araştırmalar Dergisi (IBAD)     Open Access   (Followers: 1)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
AAS Open Research     Open Access   (Followers: 1)
ARPHA Conference Abstracts     Open Access   (Followers: 1)
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
Revista Saber Digital     Open Access   (Followers: 1)
Experimental Results     Open Access   (Followers: 1)
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
Journal of Science and Technology     Open Access   (Followers: 1)
Jaunujų mokslininkų darbai     Open Access   (Followers: 1)
International Journal of Innovative Research and Scientific Studies     Open Access   (Followers: 1)
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 1)
Impact     Open Access   (Followers: 1)
Journal of Science and Engineering     Open Access   (Followers: 1)
Global Journal of Science Frontier Research     Open Access   (Followers: 1)
Logo STI Science, Technology and Innovation     Open Access   (Followers: 1)
International Science and Technology Journal of Namibia     Open Access   (Followers: 1)
Proceedings of the Indian National Science Academy     Full-text available via subscription   (Followers: 1)
Alfarama Journal of Basic & Applied Sciences     Open Access  
Fundamental Research     Open Access  
BJHS Themes     Open Access  
South American Sciences     Open Access  
Journal of Alasmarya University     Open Access  
Research Integrity and Peer Review     Open Access  
Natural Sciences Education     Hybrid Journal  
Indian Journal of History of Science     Hybrid Journal  
RAC: Revista Angolana de Ciências     Open Access  
The Innovation     Open Access  
Journal of Responsible Technology     Open Access  
Natural Sciences     Open Access  
Revista de la Sociedad Científica del Paraguay     Open Access  
Rekayasa     Open Access  
Rihan Journal for Scientific Publishing     Open Access  
Türk Bilim ve Mühendislik Dergisi     Open Access  
ArtefaCToS : Revista de estudios sobre la ciencia y la tecnología     Open Access  
Ethiopian Journal of Sciences and Sustainable Development     Open Access  
Vilnius University Proceedings     Open Access  
Sciential     Open Access  
ARPHA Proceedings     Open Access  
Gaudium Sciendi     Open Access  
Crea Ciencia Revista Científica     Open Access  
Rafidain Journal of Science     Open Access  
Journal of Al-Qadisiyah for Pure Science     Open Access  
Revista Tecnológica     Open Access  
Himalayan Journal of Science and Technology     Open Access  
International Journal of Academic Research in Business, Arts & Science     Open Access  
Universidad, Ciencia y Tecnología     Open Access  
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Acta Nova     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Revista Politécnica     Open Access  
Reportes Científicos de la FaCEN     Open Access  
Jurnal Ilmiah Ilmu Terapan Universitas Jambi : JIITUJ     Open Access  
Revista Eletrônica Ludus Scientiae     Open Access  
Emergent Scientist     Open Access  
Journal of Scientific Research and Reports     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Archives of Current Research International     Open Access  
Advances in Research     Open Access  
International Journal of Applied Science     Open Access  
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
J : Multidisciplinary Scientific Journal     Open Access  
Revista Binacional Brasil - Argentina: Diálogo entre as ciências     Open Access  
Revista Ciencia y Tecnología     Open Access  
Journal of Institute of Science and Technology     Open Access  
Journal of Science (JSc)     Open Access  
WikiJournal of Science     Open Access  
Acta Materialia Transilvanica     Open Access  
Integrated Research Advances     Open Access  
PENDIPA : Journal of Science Education     Open Access  
Open Conference Proceedings Journal     Open Access  
Naturen     Full-text available via subscription  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Sci     Open Access  
Maskana     Open Access  
Hoosier Science Teacher     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Facets     Open Access  
Adıyaman University Journal of Science     Open Access  
Revista Brasileira de Iniciação Científica     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Scientific African     Open Access  
Scientific Journal of Mehmet Akif Ersoy University     Open Access  
Black Sea Journal of Engineering and Science     Open Access  
Fırat University Turkish Journal of Science & Technology     Open Access  
Gazi University Journal of Science     Open Access  
Middle East Journal of Science     Open Access  
International Journal of Computational and Experimental Science and Engineering (IJCESEN)     Open Access  
International Journal of Engineering, Technology and Natural Sciences     Open Access  
Bulletin of the National Research Centre     Open Access  
Uni-pluriversidad     Open Access  
ConCiencia     Open Access  
Ciencia y Tecnología     Open Access  
Revista Bases de la Ciencia     Open Access  
Elkawnie : Journal of Islamic Science and Technology     Open Access  
Ciência ET Praxis     Open Access  
Arab Journal of Basic and Applied Sciences     Open Access  
International Annals of Science     Open Access  
Science Heritage Journal     Open Access  
Bilge International Journal of Science and Technology Research     Open Access  
Avrasya Terim Dergisi     Open Access  
International Scientific and Vocational Studies Journal     Open Access  
TÜBAV Bilim Dergisi     Open Access  
LOGIKA Jurnal Ilmiah Lemlit Unswagati Cirebon     Open Access  
Dalat University Journal of Science     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Respuestas     Open Access  
Science Diliman     Open Access  
Instruments     Open Access  
Revista Científica y Tecnológica UPSE     Open Access  
HardwareX     Open Access  
Sultan Qaboos University Journal for Science     Open Access  
Borneo Journal of Resource Science and Technology     Open Access  
Sainstek : Jurnal Sains dan Teknologi     Open Access  
Revista de Información Científica     Open Access  
Indonesian Journal of Fundamental Sciences     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Jurnal Natural     Open Access  
Frontiers for Young Minds     Open Access  
Revista Ciência, Tecnologia & Ambiente     Open Access  
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Negative and No Positive Results     Open Access  
Revista Conhecimento Online     Open Access  
Nova     Open Access  
CienciaUAT     Open Access  
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Makara Journal of Science     Open Access  
Jurnal Sains Dasar     Open Access  
Indonesian Journal of Science and Technology     Open Access  
Ethiopian Journal of Science and Technology     Open Access  
Jurnal Matematika, Sains, Dan Teknologi     Open Access  
Heidelberger Jahrbücher Online     Open Access  
ARO. The Scientific Journal of Koya University     Open Access  
International Journal of Recent Contributions from Engineering, Science & IT     Open Access  
Estação Científica (UNIFAP)     Open Access  
The Winnower     Open Access  

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Jurnal Teknosains
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2089-6131 - ISSN (Online) 2443-1311
Published by Universitas Gadjah Mada Homepage  [46 journals]
  • EDITORIAL

    • Authors: Widowati Siswomihardjo
      Abstract: Jurnal Teknosains Volume 12 Nomor 1 edisi Desember 2022 menampilkan berbagai penelitian beragam dalam bidang teknologi dan sains, mulai dari Teknik Industri, Teknik Mesin, Ilmu Lingkungan, Pertanian, dan Arsitektur. Artikel jurnal ilmiah yang diangkat oleh para penulis menunjukkan penelitian yang beragam. Di edisi Desember 2022, Jurnal Teknosains bekerjasama dengan 6th International Conference on Indonesian Architecture and Planning (ICIAP) 2022 untuk mengakomodir penelitian yang lebih luas bagi penulis pada lintas institusi secara nasional. Jurnal Teknosains juga berperan sebagai wadah untuk menyebarluaskan beberapa hasil penelitian yang telah dipresentasikan pada ICIAP 2022, dialihbentuk dan diterbitkan dalam bentuk artikel jurnal ilmiah. Berbagai artikel hasil penelitian di dalam edisi Desember 2022 ini menunjukkan kekhasan Jurnal Teknosains dalam mewakili tulisan pada lintas multidisiplin ilmu dan topik yang beragam, serta penulis yang berbeda institusi dengan latar belakang berbeda.
      PubDate: 2022-12-22
      DOI: 10.22146/teknosains.80345
      Issue No: Vol. 12, No. 1 (2022)
       
  • Organizational Internal and External Resources as Drivers of Success in
           Product Development: A Conceptual Model

    • Authors: Trifandi Lasalewo, Budi Hartono, Subagyo Subagyo, Hari Agung Yuniarto
      First page: 1
      Abstract: Successful products are those that can meet customer needs, wants, and expectations. The ability of an organization to produce successful products is strongly influenced by the availability of its internal and external resources. This study manages to build a conceptual model that describes the influence of organizational internal and external resources on product success. The four internal resources that drive successful products include product characteristics, management & organizational characteristics, innovation, and knowledge sharing, while one external resource includes marketplace characteristics. The conceptual model can be used as one of the basic references for measuring the driving aspects of the success of product development in subsequent studies.
      PubDate: 2022-08-02
      DOI: 10.22146/teknosains.66241
      Issue No: Vol. 12, No. 1 (2022)
       
  • Efisiensi termal dan efektivitas produksi kondensor pada solar still
           terpadu

    • Authors: Dan Mugisidi, Adittia Fajar, Rifky Rifky, Oktarina Heriyani
      First page: 19
      Abstract: Air adalah kebutuhan pokok manusia yang harus tercukupi. Kebutuhan air bersih  meningkat sedangkan ketersediaan air bersih  terbatas sehingga para peneliti berupaya menggunakan air laut sebagai bahan baku air tawar. Air laut merupakan sumber air yang melimpah akan tetapi masih mengandung garam, oleh karena itu perlu pemisahan antara air laut dengan kandungan garamnya sehingga bisa menghasilkan air tawar atau desalinasi yang salah satu caranya  adalah menggunakan solar still karena murah dan sederhana. Akan tetapi solar still memiliki produktivitas yang rendah, maka itu berbagai penelitian telah dilakukan untuk meningkatkan hasil desalinasi salah satunya dengan penambahan kondensor. Tujuan dari penelitian ini untuk mengetahui efisiensi termal dan efektivitas  kondensor pada solar still. Penelitian dilakukan di Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. HAMKA periode Maret - Mei 2021. Material yang digunakan yaitu aluminium dengan panjang 300 mm, lebar 300 mm dan tebal 1,6 mm untuk pelat basin, kaca ganda dengan tebal 3 mm untuk penutup atas dan samping solar still. Penelitian dilakukan dalam ruangan dengan intensitas radiasi menggunakan lampu halogen. Varibel yang diukur berupa temperatur air, evaporasi, permukaan kaca dalam, kondensor, saluran masuk dan keluar pendingin kondensor dengan menggunakan fluke meter, intensitas radiasi menggunakan solar power meter dan air hasil desalinasi dengan neraca digital. Dari hasil penelitian menunjukan rata-rata efisiensi termal kondensor pada solar still terpadu mencapai 83,94% dan massa desalinasi air laut mencapai 451,32 gram dengan efektivitas produksi kondensor sebesar 96,4% serta nilai korelasi 0,99.
      PubDate: 2022-08-02
      DOI: 10.22146/teknosains.70731
      Issue No: Vol. 12, No. 1 (2022)
       
  • Analisis potensi penerapan teknologi produksi bersih pada c-maxi
           alloycast, Yogyakarta

    • Authors: Dewi Masri, Wagiman Wagiman, Bertha Maya Sopha
      First page: 32
      Abstract: Penerapan produksi bersih di C-Maxi Alloycast, Yogyakarta. Tujuan penelitian adalah untuk mengidentifikasi potensi penerapan prinsip produksi bersih di C-Maxi Alloycast. Metode yang digunakan adalah pemetaan proses produksi, analisis limbah melalui pengujian limbah cair & analisis potensi prinsip-prinsip produksi bersih. Hasil yang diperoleh untuk proses produksi meliputi peleburan, penuangan logam cair ke cetakan, pengangkatan cetakan dan pemberian cairan pendingin, pengangkatan hasil coran, pembubutan, pengikiran, quality control, penyimpanan dan distribusi. Karakteristik limbah cair menunjukkan nilai memenuhi baku mutu, namun kandungan TSS tidak memenuhi NAB (Nilai Ambang Batas). Peluang produksi bersih antara lain good housekeeping, penerapan 3R pada limbah padat, pembangunan TPS Limbah B3 dan peningkatan kapasitas sumber daya manusia. Kinerja lingkungan mengalami peningkatan berdasarkan Standar Industri Hijau (SIH) dari level 1 ke level 2 dengan nilai 53% menjadi 65% dengan penerapan produksi bersih. Kinerja ekonomi dari penerapan produksi bersih memperoleh keuntungan sebesar Rp. 77.412.000,-/tahun. Menerapkan produksi bersih dapat memberikan dampak positif bagi lingkungan dan perekonomian.
      PubDate: 2022-08-02
      DOI: 10.22146/teknosains.67962
      Issue No: Vol. 12, No. 1 (2022)
       
  • OPTIMIZATION OF CHITINASE PRODUCTION FROM Bacillus cereus SMG 1.1 USING
           RESPONSE SURFACE METHODOLOGY

    • Authors: Adnan Widodo, Indun Dewi Puspita, Ustadi Ustadi
      First page: 44
      Abstract: Shrimp shell waste are potential to be processed further into value added products, such as N-acetylglucosamine (GlcNAc). In the production of GlcNAc, biological approach is preferred and environmentally friendly to chemical treatment. Chitinase is an enzyme that plays a vital role in bioprocessing of shrimp shell waste into GlcNAc. Previously, Bacillus cereus SMG 1.1 was isolated from fermented shrimp paste (terasi) and showed ability to produce chitinase. This study was designed to determine the optimum medium for the production of chitinase from B. cereus SMG 1.1 through the Response Surface Method (RSM) using a factorial design with 15 treatments. The test was designed to assess the effect of the independent variables on chitinase activity (colloidal chitin, fructose, and MgSO4). This study developed a linear model capable of predicting the response. The highest response value was achieved at a concentration of 0.75% fructose, 1.5% colloidal chitin, and 0.075% MgSO4 resulted in chitinase activity of 0.0016 U/ml.
      PubDate: 2022-08-04
      DOI: 10.22146/teknosains.72606
      Issue No: Vol. 12, No. 1 (2022)
       
  • Architectural Typology of Water Infrastructure: Case Study of Green Open
           Space and Heritage Site of Perigi Pekasem, Bangka Belitung

    • Authors: Reza Arlianda
      First page: 56
      Abstract: In response to Sustainable Development Goals number 6 on clean water and sanitation, Indonesia as the top 10 countries in extensive groundwater extraction has fallen behind in providing basic water services infrastructure. While the water utility in Indonesia only provides 35.15% coverage nationally, Bangka Belitung as the lowest province in water management provision with only 17.26% coverage faces tremendous sustainable issues due to its massive exploitation of water usage for domestic, industrial, and especially tin mining activities. Even though water infrastructure is always an essential part of the history of the built environment such as the Roman aqueduct, India’s Stepwell, and Nasqa Puquios, the number of architectural studies focused on improving the water services in Indonesia is surprisingly small. This study aims to contribute and mainstream the discussion on green infrastructure in the architecture discourse by analyzing and identifying its typology and design elements using the heritage built environment of Bangka Belitung’s perigi as the case study. The result of identified design elements and typology on the cultural landscape can further be used to enrich the architecture discussion and design vocabulary on Indonesian cities’ urban fabric and contribute to the expected achievement progress on sustainable development goals.
      PubDate: 2022-12-10
      DOI: 10.22146/teknosains.78507
      Issue No: Vol. 12, No. 1 (2022)
       
  • FLASH FLOOD (Δ) RISK AND DAMAGE ASSESSMENT BATU, EAST JAVA

    • Authors: Dekka Dhirgantara Putra, Bahrul Fikry Sofwany, Hukma Zulfinanda, Iqbal Kamaruddin
      First page: 72
      Abstract: Hydrometeorological disasters are showing an increasing trend in Indonesia. Flash floods are part of a hydrometeorological disaster that has a significant livelihood impact. Flash Flood is triggered by the intensity of extreme rain, several actions of mitigation can be taken by early warning systems, hazard and risk mapping, community preparedness, and climate change adaptation. So, how does future land use have an impact, and how much loss will result from the flash flood disaster in Batu City' The hydrometeorological disaster that occurred in Indonesia was the Batu Flash Flood. The Flash Flood occurred on November 4, 2021. The flash flood has a lot of impact on many locations, including the Bumiaji District and Junrejo District. Based on the disaster history recorded, the flash flood in Batu has only happened once, but the impact was quite big because there are many houses in the midstream of Bulukerto. Based on the losses caused, this can be the basis for efforts to control the spatial pattern of Batu City in the future. The methodology used in this study is risk assessment. While the risk study related to delta (Δ) the study of flash floods risk in spatiotemporal prevention uses the 2030 spatial plan for delta prediction (Δ), which can later predict the consequences of climate change and meteorological disasters from flash floods in Batu. The results of this study are the delta (Δ) of flash flood risk and the damage assessment of the flash flood that occurred in Batu.

      PubDate: 2022-12-10
      DOI: 10.22146/teknosains.78483
      Issue No: Vol. 12, No. 1 (2022)
       
  • Impact of Slum Upgrading to River Water Quality in Yogyakarta City,
           Indonesia

    • Authors: Endar Rohmadi, Masahiko Sekine, Bakti Setiawan
      First page: 85
      Abstract: Due to a lack of proper sanitation services, the disposal of residential wastewater from slum areas has become one of the river pollution contributors. In Yogyakarta slums were concentrated along the riverbanks of the Winongo, Code and Gajahwong rivers. Due to slum upgrading, slums have declined from 264.5 ha to 114.72 ha between 2016 and 2020. This research aims to determine the correlation between slum upgrading and river water quality. The data was acquired from the Government of Yogyakarta City, Indonesia, and examined using ten water parameters from 2013 to 2021. Using Pearson Correlation Coefficient and Spearman Rank, it was found that population density positively correlated with Total Coliform and Fecal Coliform (p<0.05). It was also seen that the slum ratio showed a positive correlation with BOD, COD, TSS, pH, and NH3-N (p<0.05). The number of WWTP had a positive correlation with PO4-P (p= 0.037), whereas the number of connected houses to WWTP reported a positive correlation with P04-P (p=0.028). In addition, a significant decrease in BOD, COD, NH3-N, pH, and TSS were found using the Paired t-test and the Wilcoxon Signed-Rank test. (p<0.05). Slum upgrading notably reduced organic pollutants and suspended solids. However, the performance of WWTP did not perform a maximal contribution to reducing PO4-P and Coliform; therefore, it is necessary to improve the performance. This study might be used to enhance the river and urban management in Yogyakarta City. 
      PubDate: 2022-12-10
      DOI: 10.22146/teknosains.78952
      Issue No: Vol. 12, No. 1 (2022)
       
  • OPTIMASI WAKTU SIKLUS PADA SISTEM PENDINGINAN ADSORPSI PEMANASAN-ULANG
           KOMBINASI

    • Authors: I Gusti Agung Bagus Wirajati, Putu Wijaya Sunu, Ida Ayu Gede Bintang Madrini, Ni Kadek Muliati
      First page: 99
      Abstract: Sistem refrigerasi adsorpsi merupakan sistem pendinginan yang ramah lingkungan karena potensi penipisan ozon menjadi nol. Pada tulisan ini diperkenalkan sebuah sistem pendinginan adsorpsi pemanasan ulang kombinasi dengan tiga penukar kalor. Prinsip kerja dan optimasi waktu siklus pada sistem juga dibahas dalam tulisan ini. Sistem pendinginan adsorpsi ini terdiri dari tiga alat penukar kalor (H) adsorber/desorber, satu evaporator dan satu kondensor. Kombinasi siklus dimaksudkan kepada mesin penukar kalornya yang bekerja dalam siklus pemanasan ulang (H1 dan H2) dan siklus tanpa pemanasan ulang (H3). Simulasi sistem dikerjakan dengan program MATLAB yang dioptimasi melalui PSO (particle swarm optimization) dengan tujuan adalah untuk mengetahui unjuk kerja dari sistim terhadap waktu siklus totalnya yang meliputi waktu adsorbs/desorbsi, waktu pre-cooling & pre-heating dan waktu mass recovery. Dari hasil optimasi didapatkan bahwa sistim ini dapat bekerja pada suhu terendah 55 C pada kondisi suhu air dinginnya dijaga tetap pada 9 C.
      PubDate: 2022-12-04
      DOI: 10.22146/teknosains.73676
      Issue No: Vol. 12, No. 1 (2022)
       
 
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