PENGEMBANGAN DESAIN MESIN PRESS BAHAN BAKU JAMU DENGAN METODE QFD (Quality Function Deployment)

Abstrak Dalam menjalankan usaha jamu tradisional kepercayaan dan kepuasan pelanggan merupakan syarat mutlak yang harus diperhatikan sepenuhnya oleh pemilik usaha jamu tradisional. Selama ini setiap pengusaha jamu hampir semuanya menggunakan mesin pemeras sari jamu yang ada dipasaran. Namun, mesin yang selama ini digunakan memiliki beberapa kekurangan. Penelitian ini bermaksud untuk mengetahui pengembangan desain mesin press bahan baku jamu menggunakan analisa QFD. Dalam pengambilan data menggunakan sistem kuesioner, dengan maksud untuk memperoleh informasi yang sesuai dengan tujuan penelitian, hingga didapat hasil yang dijamin kebenarannya. Dari hasil penelitian ini dapat disimpulkan Pengembangan desain mesin press bahan baku jamu berdasarkan analisa Quality Funtion Deploytment (QFD) bahwa konsep yang akan dikembangkan adalah konsep D. Pemilihan konsep D yang akan dikembangkan ini berdasarkan nilai tertinggi yang di dapat konsep D (22 point) di bandingkan dengan konsep C (10 point) dan konsep B (-4 point). Dari 22 kriteria komponen yang yang diinginkan, semuanya ada pada konsep D. Sebagai pengembangan desain mesin press bahan baku jamu ada beberapa penambahan yang dilengkapi dengan motor penggerak 370 watt, ECU(electrik control unit), gearbox rasio 1:40, screw, sensor pengaman, penampung berbahan stainless 304, kran, roda, on of button, warna biru, panjang 600 mm , lebar 600 mm, serta tinggi 1550 mm agar pengguna merasa nyaman dalam mengoperasikan dan harga mesin 4,5 juta. Kata Kunci: Quality Function Deployment, mesin press, knock down

Rancang Bangun Pengaduk Manual Pada Digester Biogas Kotoran Sapi untuk Meningkatkan Pembentukan Gas Metana

This study aims to design, build and increase methane gas levels in a biogas digester based on a manual stirrer. Where so far biogas materials still use natural secaera fermentation without human help. The initial stage of making this biogas material stirrer control tool is by looking at the original form of processing biogas material. In the biogas processing building, there are three important parts in biogas processing, namely the inlet (this place is used to mix a mixture of manure and water into the digester), the digester (also called the reactor functions as a place to process cow dung through a process of fermentation by bacteria to produce gas) and outlet (this channel is used to remove impurities that have been fermented by bacteria. This channel works on the principle of hydrostatic pressure equilibrium). It is in this part of the inlet that there is a mixing device. The tool is used to prepare a good mixture of water and animal feces. This manual stirring device is made of several important components, namely such as the propeller blade, the core iron and the stirring handle which uses the manual working principle. The presence of this tool can help increase methane gas formation in the biogas digeste

Assessing Learning Management System (LMS) for The Dairy Farmer: Obstacles to Delivering Online Learning Content

Online learning is currently an alternative learning strategy for continuous learning amidst the limitations of face-to-face learning due to the spread of the Covid-19 outbreak. However, the implementation of online learning certainly does not only provide solutions but also provides obstacles in its implementation which results in the non-delivery of learning content in online learning. Of course this can have an impact on dairy farmers as new users of the Learning Management System. This study aims to analyze the constraints of online learning based on the responses that have been shared by Twitter social media users towards the implementation of online learning and to assess the use of LMS for dairy farmers. This study uses the Twitter data crawling method on Twitter social media user responses to the topic of online learning constraints and data visualization to analyze LMS usage by . The research findings state that most users of online learning complain about internet quota constraints and the technical constraints experienced by them resulting in learning content not being absorbed optimally. This research can enrich research related to the use of social media data as data that can be analyzed and documented for learning development

Enhanced Microwave Absorption Quality of Bio-Silica-Barium-Ferrite Composites: Interplay of Fe3+ and Si4+

This paper reports the improved microwave (MW) absorption characteristics of some newly prepared bio-silica-barium-ferrite composites (SBFCs) of the form (x)Bio-SiO2:(80-x)Fe2O3:(20) BaO (where x = 0, 2, and 4 wt.%). These composites were prepared using the modified solid-state reaction method with simultaneous sintering at 800 and 1100 °C. SBFCs were studied to determine the impact of various bio-silica concentrations on their morphology, structure, magnetic properties, permittivity, permeability, and X-band reflection loss. Various SBFC thicknesses were simulated to determine the reflection loss curves. It has been established that the MW absorption capacity of the examined SBFCs may be altered by adjusting the bio-silica concentration and sample thickness

Mix method analysis for analyzing user behavior on logistic company mobile pocket software

The present study emphasizes mixed-method analysis, integrating the partial least square structural equation model (PLS-SEM) and customer journey for mobile pocket office improvement in logistic XYZ company. The extension of the unified theory of acceptance and use of technology (UTAUT 2) model by incorporating perceived risk (PR), personal innovativeness (PI), and trust (TR) variables are used. The sample for this study consisted of 243 res­pondents. Based on the results of the PLS-SEM analysis, two of the eleven tested hypotheses were determined to be rejected. In application usage, the proposed model effectively explained 85.7 per cent of the influence on beha­vioral intention (BI) and 72.1 per cent on use behavior (UB). The customer journey mapping (CJM) investigation's findings show that fluctuations in the use of mobile pocket office technology in the field are generally brought on by a lot of data entry, sluggish internet connections, and overworked field operations. The XYZ company may acquire sugges­tions and knowledge for developing further applications due to this inquiry.Saat ini, perkembangan teknologi komunikasi dan inovasi sangat penting bagi perekonomian. Selain itu, hal ini menyebabkan persaingan yang semakin ketat antara perusahaan. Aplikasi mobile pocket office berbasis mobile disediakan oleh perusahaan logistik PT. XYZ dalam upaya meningkatkan kualitas pelayanan khususnya di divisi operasional. Namun karena fluktuasi penggunaan, program mobile pocket office ini tidak dapat bekerja pada level puncaknya. Untuk menguji perilaku pengguna, penelitian ini menggunakan analisis metode campuran, mengintegrasikan PLS-SEM dan Perjalanan Pelanggan. Evaluasi PLS-SEM Penelitian ini menilai variabel yang mempengaruhi penerimaan pengguna terhadap penggunaan aplikasi mobile pocket office dengan membangun model UTAUT 2 yang ditingkatkan dengan menggabungkan variabel persepsi risiko (PR), inovasi pribadi (SINN), dan kepercayaan (TR). Sampel untuk penelitian ini terdiri dari 243 responden. Berdasarkan hasil analisis PLS-SEM, dua dari sebelas hipotesis yang diuji dinyatakan tidak benar. Efek terbesar pada niat perilaku dan perilaku penggunaan masing-masing disebabkan oleh variabel motivasi hedonis (HM) dan variabel kebiasaan (HB) (BI). Dalam konteks penggunaan aplikasi, model yang diusulkan menjelaskan secara efektif pengaruh sebesar 85,7 persen terhadap behavioral intention (BI) dan 72,1 persen terhadap use behavior (UB). Variabel persepsi risiko (PR) dan ekspektasi upaya (EE) diabaikan. Pengguna merasakan banyak usaha, dan tingginya risiko penyalahgunaan membuat mereka kurang tertarik menggunakan program, menurut hasil. Temuan investigasi Customer Journey Mapping (CJM) menunjukkan bahwa fluktuasi penggunaan teknologi mobile pocket office di lapangan umumnya disebabkan oleh banyak entri data, koneksi internet yang lamban, dan operasi lapangan yang terlalu banyak bekerja. PT. Perusahaan XYZ dapat memperoleh saran dan pengetahuan untuk mengembangkan aplikasi lebih lanjut sebagai hasil dari penyelidikan ini.   &nbsp

Micromagnetic Simulation of Domain Structure Transition in Ferromagnetic Nanospheres under Zero External Field

In this work, we investigated the domain structure transition in ferromagnetic nanospheres at the ground-state conditions under zero external magnetic field by micromagnetic simulation. Four basic ferromagnetic materials, nickel (Ni), permalloy (Py), iron (Fe), and cobalt (Co), with variation in diameters from 20 to 100 nm were modeled in the simulation. It was observed that a transition of domain structure occurs from a single-domain to a multi-domain structure at a specific diameter based on the magnetization energy profile. Interestingly, a vortex–core orientation in the multi-domain regime was related to the magnetocrystalline axis of the material, which first aligns with the hard-axis direction, and then changes to the easy-axis direction for low-anisotropy materials (Ni, Py, and Fe). In contrast, only hard-axis orientation exists for high-anisotropy materials (Co). Furthermore, it is also observed that the transition of domain structure was related to the critical diameter. Below the critical diameter, a single-domain structure is exhibited in which the demagnetization energy was larger than the exchange energy. A multi-domain structure emerged above the critical diameter where the exchange energy was larger than the demagnetization energy. The comparable values of critical diameter were also calculated based on the Kittel and Brown equations. The results of the critical diameter from the micromagnetic simulation agreed with the theoretical calculations. Therefore, an interpretation of these magnetization dynamics is an important step in the material selection for granular magnetic-based storage

Selective microwave absorption in Nd3+ substituted barium ferrite composites

Microwave (MW) frequency based wireless communications and electronic devices became prospective due to several ramifications. To meet this need, a series of neodymium ions (Nd3+) substituted barium ferrite composites with composition (20)BaO:(80–x)Fe2O3:(x)Nd2O3 (0 ≤ x ≤ 3 mol%) was prepared at 1100 °C using solid-state reaction method. We evaluated the effect of various Nd3+ ions contents on the surface morphology, structure, and magnetic properties of the as-synthesized barium ferrite composites. Meanwhile, microwave reflection loss, complex permittivity and permeability were determined using the transmission/reflection line method in the X-band (8–12 GHz). SEM image of the composites shows that the surface morphology consists of rough and porous microstructures. XRD patterns of the un-doped composites reveal the existence of BaFe12O19 (hexagonal) and Fe21.333O32 (tetragonal) crystalline phases. Furthermore, a new hexagonal crystalline phase of Ba6Nd2Fe4O15 with the crystallite sizes between 15 and 67 nm is observed due to Nd3+ ions substitution in the composite. The saturation magnetization of the composite containing 2 mol% of Nd3+ does not exhibit any significant alteration compared to the one devoid of Nd3+. The complex relative permitivity and permeability of the achieved composites enriched in Ba6Nd2Fe4O15 and BaFe2O4 phases disclose significant MW frequency dependence. The composites also display selective MW absorption in the X-band which could be useful for diverse applications

Proceedings of the 3rd International Conference on Community Engagement and Education for Sustainable Development

This proceeding contains articles on the various ideas of the academic community presented at The 3rd International Conference on Community Engagement and Education for Sustainable Development (ICCEESD 2022) organized by the Universitas Gadjah Mada, Indonesia on 7th-8th December 2022.  ICCEESD is a biannual forum for sharing, benchmarking, and discussing HEI’s activities in developing Education for Sustainable Development towards community engagement. Education for Sustainability as a teaching strategy for resolving community challenges through formal, informal, or non-formal education is expected to benefit from various community service best practices by academics, researchers, and students. The 3rd ICCEESD has “Strengthening Education for Sustainability Towards Better Community Engagement” as its theme this year. It is expected that the 3rd ICCEESD will provide a forum for the presenters and participants to exchange best practices, policies, and conceptual implementation of Education for Sustainability towards better community engagement and explore ideas to address community needs.  Conference Title: 3rd International Conference on Community Engagement and Education for Sustainable DevelopmentConference Theme: Strengthening Education for Sustainability Towards Better Community EngagementConference Acronyms: ICCEESD 2022Conference Date: 7th-8th December 2022Conference Location: Grand Rohan Jogja Yogyakarta, IndonesiaConference Organizer: Universitas Gadjah Mada, Indonesi