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Menampilkan 131–140 dari 475 artikel
Spectral and Molecular Modifications of Hydrophilic Silica Aerogel: A Study on Doping Effects and Structural Evolution
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 2
(2025)
Silica gel has recently become an interesting material because of its importance in many applications in several fields such as medicine and sustainable technology. It has been found that the impregnation of some materials improves the synthetic properties of silica. Silica gel was prepared via mixed TEOS: ethanol: hydrochloric acid with molar ratios of 2:10:1.5. After doping with Diethyl in different concentrations 10-4, 10-5, and 10-6) g/cm3, the molecular properties were studied by examining...
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Performance Comparison of UWB Single Balanced Schottky Diode Mixers for RF Front-End Applications in 3-10 GHz Band
Shairi, Noor Azwan
; Mohammed , Yahya Al-gumaei
; Zakaria, Zahriladha
; Maizatul Alice Meor Said
; Misran, Mohamad Harris
; Abdullah Mohammed, Zaghir Zobilah
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 2
(2025)
This paper compares two single balanced mixer designs for ultra-wideband (UWB) of RF front-end at frequencies ranging from 3 to 10 GHz. The proposed mixer designs use two balun topologies for varying mixer performances. Thus, Design 1 incorporates a Coupled Line Balun and Design 2 incorporates a Branch Line Balun. Both designs make use of Skyworks' SMS7621 Schottky diodes, which have a low junction capacitance, and the Rogers RO4350B substrate, which has a dielectric constant of 3.48. The Coupl...
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The Empowering Disabled Communities as Creative Economy Actors Through Social Education Recreation at the Bina Siwi Orphanage: Pemberdayaan Masyarakat Disabilitas Sebagai Pelaku Ekonomi Kreatif Melalui Rekreasi Edukasi Sosial di Panti Asuhan Bina Siwi
Indonesian Journal of Empowerment and Community Service
Vol 6
, No 1
(2025)
People with disabilities have potential and skills that can be trained. One place to develop disability skills is the private foundation Bina Siwi Orphanage located in Yogyakarta. Bina Siwi Orphanage trains various disability skills such as self-help skills, arts, agriculture, animal husbandry, and making crafts. Most of the people with disabilities at Bina Siwi Orphanage have limited intellectual barriers, therefore the training provided must be accompanied by continuous skill distribution. Bas...
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Analisis Kekuatan Rangka Mesin Pengupas Kulit Ari Kacang Tanah Tipe Roller Tunggal dengan Evaluasi Material Berstandar Food Grade Menggunakan Simulasi SolidWorks
Majalah Ilmiah Momentum
Vol 21
, No 1
(2025)
Rangka mesin merupakan elemen krusial dalam perancangan mesin karena berfungsi sebagai penopang berbagai komponen dan menahan beban selama operasional. Penelitian ini bertujuan untuk menganalisis kekuatan rangka pada mesin pengupas kulit ari kacang tanah tipe roller tunggal dengan metode simulasi statis menggunakan perangkat lunak SolidWorks. Selain itu, dilakukan evaluasi terhadap pemilihan material rangka berdasarkan standar food grade. Hasil simulasi menunjukkan tegangan maksimum sebesar 36,5...
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PEMBUATAN DAN KARAKTERISASI EDIBLE FILM DARI SEMI REFINED CARRAGEENAN Kappaphycus alvarezii DENGAN ASAM MALAT SEBAGAI PLASTICIZER
Simon, Abdel
; Nugraeni, Christine Dyta
; Cahyani, Reni Tri
; Nasyirahul Sajidah, Happy Bunga
; Pramita Dewi, Dena
; Salim, Gazali
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Sampah plastik sudah menjadi masalah serius bagi masyarakat di Indonesia karna sudah mencemari lingkungan baik perairan dan daratan. Salah satu cara yang dapat diambil untuk mengurangi limbah plastik adalah dengan memproduksi edible film menggunakan Kappaphycus alvarezii. Penelitian ini bertujuan untuk menentukan tingkat optimal asam malat dalam proses pembuatan edible film dari semi refined carrageenan (SRC) yang berasal dari rumput laut (kappaphycus alvarezii). Metodologi yang diterapkan dalam...
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Analisa Pengaruh Variasi Bevel Dan Penggunaan Backing Ceramic Terhadap Kekuatan dan Defect Material Baja Grade A Pengelasan Shield Metal Arc Welding (SMAW)
Jurnal Universal Technic (UNITECH)
Vol 4
, No 1
(2025)
Grade A steel plates are commonly used in marine and offshore structures due to their high corrosion resistance. This study investigates the effect of bevel angle variations (30°, 40°, and 50°) and the use of ceramic backing on the mechanical properties and welding defects of Grade A steel using the Shielded Metal Arc Welding (SMAW) method. Welding was conducted with four-pass multipass welding. An experimental approach was employed, including macro visual inspection, dye penetrant, tensile, and...
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Empowerment of Coffee Processing Business Actors of the Central Lawu Nature Lovers Group as a Form of Utilization of Local Commodities in Sukowidi Village, Panekan District, Magetan Regency
Rochmah, Alfi
; Febriana Ramadhan Abdi, Yenny
; Choiroel, Anam
; Putri Suleman, Dininurilmi
; Rukmakharisma Riski, Prajwalita
; Zulfa, Fitriyah
; Nadhilah, Dini
Indonesian Journal of Empowerment and Community Service
Vol 6
, No 1
(2025)
Sukowidi Village, located in Panekan District, Magetan Regency, is known as the largest coffee commodity-producing area. The sale of this coffee is one of the economic drivers for the residents of Sukowidi Village. Sukowidi Village already has a fairly active Central Lawu nature lovers group that can be an agent in overcoming coffee problems, but the lack of insight into entrepreneurship, food processing techniques, and marketing techniques is an obstacle to developing coffee. The UNS PKM Team w...
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3Ps-Based Game for Teaching Vocabulary to Young Learners
Educalingua Journal
Vol 3
, No 1
(2025)
This study highlights the importance of building strong self-regulated motivation in EFL learners before engaging them in academic writing tasks. Motivation plays a vital role in helping learners handle the challenges of academic writing and develop effective learning strategies. This small-scale library research aimed to explore how self-regulated motivation supports the improvement of EFL learners’ writing skills. A thematic analysis was conducted on 25 studies related to self-regulated motiva...
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The Language of Companionship: A Critical Stylistic Examination of True and False Friendship in Niyi Osundare’s Poetry
Educalingua Journal
Vol 3
, No 1
(2025)
Friendship, a central theme in human relationships, has been a subject of poetic exploration across cultures. Niyi Osundare, a renowned Nigerian poet, examines the dual nature of friendship in his poems Friendship Blue, One Side and Friendship Blue, Another Side from the collection Random Blues. This study employs the Critical Stylistics (CS) approach, developed by Jeffries (2010), to analyse how Osundare’s linguistic and stylistic choices shape the representation of false and true friendship. T...
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A Comparative Analysis of an Enhanced Hybrid Model for Predicting Dollar Against Naira Exchange Rate Using Deep Learning and Statistical Methods
Journal of Computing Theories and Applications
Vol 2
, No 4
(2025)
In today’s global economy, accurately predicting foreign exchange rates or estimating their trends correctly is crucial for informed investment decisions. Despite the success of standalone models like ARIMA and deep learning models like LSTM, challenges persist in capturing both linear and nonlinear dynamics in highly volatile exchange rate environments. Motivated by the limitations of these individual models and the need for more robust forecasting tools, this study proposes a hybrid ARIMA-LSTM...
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