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All Journal Eksergi: Jurnal Teknik Energi Prawara: Jurnal Pendidikan Bahasa dan Sastra Indonesia AMMA : Jurnal Pengabdian Masyarakat
Prihatmini, Eri
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Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Social Sciences

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REPRESENTASI KEKUASAAN TUTURAN DOSEN DALAM PEMBELAJARAN DI JURUSAN TEKNIK MESIN POLITEKNIK NEGERI SEMARANG DITINJAU DARI PERSPEKTIF SOSIOPRAGMATIK Prihatmini, Eri; Vebriyanto, Danu Angga; Hudaya, Diah Wulansari
Prawara: Jurnal Pendidikan Bahasa dan Sastra Indonesia Vol 6 No 2 (2025): August 2025
Publisher : Fakultas Bahasa dan Sastra Indonesia Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jpbsi.2025.6.2.16080

Abstract

Penelitian ini bertujuan untuk menganalisis representasi kekuasaan dalam tuturan dosen selama proses pembelajaran di Jurusan Teknik Mesin Politeknik Negeri Semarang dengan menggunakan pendekatan sosiopragmatik dan metode analisis wacana kritis. Penelitian ini menelaah bentuk-bentuk tuturan dosen yang mencerminkan kekuasaan serta konteks sosial yang melatarbelakanginya. Data dikumpulkan melalui observasi partisipatif dan rekaman interaksi kelas dan wawancara semi terstruktur, lalu dianalisis secara kualitatif. Hasil penelitian menunjukkan bahwa kekuasaan dosen direpresentasikan melalui lima jenis tindak tutur utama, yaitu: direktif (mengatur tindakan mahasiswa secara langsung), deklaratif (menetapkan aturan dan konsekuensi), representatif (menegaskan otoritas epistemik), ekspresif (mengelola emosi dan norma moral), dan komisif (menyampaikan komitmen sebagai bentuk negosiasi). Kelima jenis tindak tutur tersebut mencerminkan dinamika kekuasaan yang bersifat fungsional, situasional, dan dialogis dalam interaksi kelas vokasional. Studi ini menegaskan pentingnya kesadaran pragmatik dosen dalam mengelola relasi kekuasaan untuk menciptakan suasana pembelajaran yang inklusif dan efektif.
Penerapan Mesin Perajang Dan Penggoreng Kentang Semi Automatis Guna Mempercepat Proses Produksi Kentang Goreng Produk UMKM “Make - D” Yanuar, Padang; Gunawan Widodo, Ign.; Ayu Janitra, Atikah; Harmanto, Sri; Khoryanton, Ampala; Safriana, Eni; Pambekti, Arif; Prihatmini, Eri
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 6 : Juli (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

UMKM Make-D is located in Dieng Kulon Tourism Village, one of the villages in Batur District, Banjarnegara Regency. Potato chips are a typical souvenir from this area, along with the increase in tourist visits in proportion to the demand for potato chips. The production process is still traditional, making it difficult for UMKM to meet customer demand. The goal of the mechanical engineering lecturer community service team is to implement a semi-automatic chopping and frying machine to help speed up the production process of quality fried shallots. The method in this community service begins with identifying partner problems, the next stage is to conduct a group discussion with the community service team to discuss problem solutions, the result of this community service is the application of appropriate technology for semi-automatic chopping and frying machines to improve the potato chip production process.
Development of a MATLAB GUI Application for Computing Reliability Indices at an Electrical Substation Fajri, Amrisal Kamal; Efendi, Erwan Tri; Evan, Bah; Prihatmini, Eri
Eksergi Vol. 21 No. 02 (2025): MAY 2025
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v21i02.6844

Abstract

The reliability of power distribution systems plays a crucial role in ensuring the continuous and efficient supply of electricity to consumers. This study presents the development of a MATLAB-based Graphical User Interface (GUI) application designed to compute key reliability indices, including SAIFI (System Average Interruption Frequency Index), SAIDI (System Average Interruption Duration Index), and CAIDI (Customer Average Interruption Duration Index), specifically for electrical substations. The application was developed using MATLAB's App Designer and structured to provide an intuitive and interactive user experience. Real operational data from a 150 kV substation were utilized to test and validate the application’s functionality. The results demonstrate that the tool effectively simplifies the reliability analysis process, reduces calculation time, and minimizes the potential for manual errors. This application can serve as a practical support system for engineers and researchers in evaluating and improving the performance of electrical distribution systems.
Polymer Microfluidics Chip Fabrication and Its Energy Application: A Mini Review Sandi, Dianisa; Li, Yang; Evan, Bah; Efendi, Erwan Tri; Huda, Luqman Al; Fajri, Amrisal Kamal; Prihatmini, Eri
Eksergi Vol. 21 No. 01 (2025): JANUARY 2025
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v21i01.6352

Abstract

Microfluidics is a technology that manipulates fluids at a microscale and has shown great potential in various fields, including energy. This mini-review discusses common microfluidic materials and the main techniques in microfluidic chip fabrication, such as photolithography, soft lithography, and 3D printing-based fabrication methods. Furthermore, several applications of microfluidic chips in the energy sector, such as solar energy and fuel cell systems development, are also discussed. The use of microfluidic chips in energy systems offers high efficiency, low material consumption, and good system integration. This review aims to provide an overview of the progress of microfluidic chip fabrication and its energy potential applications.
The Effectiveness of Mechanical Power on An Auxiliary Rotor in The Design of Counter Rotating Wind Turbine (CRWT) Huda, Luqman Al; Evan, Bah; Prasetya, Ari; Sandi, Dianisa Khoirum; Prihatmini, Eri; Fajri, Amrisal Kamal
Eksergi Vol. 21 No. 01 (2025): JANUARY 2025
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v21i01.6359

Abstract

The counter-rotating wind turbine (CRWT) represents a novel development in horizontal-axis wind turbine technology. This innovative design incorporates an additional rotor that rotates in unison with the main rotor along the same axis. Without the supplementary rotor, the turbine's configuration is analogous to that of a horizontal-axis wind turbine (HAWT) with the main rotor functioning independently. The primary objective of this study is to undertake a comparative analysis of the effectiveness of mechanical energy generation, as measured by torque, between the CRWT and HAWT designs. The configuration of the wind turbine is situated within a wind tunnel, characterized by a rectangular cross-section. The testing of wind turbines has been conducted at wind velocity of 2 m/s, 3 m/s, and 4.5 m/s. The total mechanical power measured was 0.14 W, 0.21 W, and 0.28 W at wind velocity of 2 m/s, 3 m/s, and 4.5 m/s, respectively. The final results of the study have analyzed the effectiveness of power enhancement through power coefficients.
Co-Authors Ari Prasetya, Ari Arif Pambekti Ayu Janitra, Atikah Diah Wulansari Hudaya, Diah Wulansari Efendi, Erwan Tri Evan, Bah Fajri, Amrisal Kamal Gunawan Widodo, Ign. Huda, Luqman Al Khoryanton, Ampala Li, Yang Padang Yanuar Safriana, Eni Sandi, Dianisa Sandi, Dianisa Khoirum Sri Harmanto Vebriyanto, Danu Angga