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All Journal Abdi Cendekia: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat dan Riset Pendidikan
Sumihar Simangunsong
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Mengatur Keuangan Rumah Tangga yang Efektif di STM SEIA SEKATA Piala Mutiara; Nalom Dahlan Marpaung; Tambunan, Yunita Kristina; Sumihar Simangunsong; Melva Elvrida Pangaribuan
Abdi Cendekia : Jurnal Pengabdian Masyarakat Vol 3 No 2 (2024): Juli
Publisher : Yayasan Zia Salsabila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61253/abdicendekia.v3i2.247

Abstract

Mengelola keuangan keluarga adalah penting dalam rumah tangga. Ada banyak strategi yang bisa diambil guna mengatur keuangan rumah tangga yang strategis, seperti pendidikan, kesehatan, termasuk pengurangan kuantitas dan kualitas pangan keluarga serta pengelolaan utang. Sebesar apapun penghasilan yang didapat namun dengan menajemen yang buruk tentulah akan menjadi malapetaka dalam stabilitas keuangan keluarga. Selain itu, guna meningkatkan ekonomi keluarga maka juga perlu dipikirkan untuk mencari peluang-peluang baru yang bisa diandalkan untuk menambah sumber keuangan keluarga. Tujuan pengabdian ini adalah ini  adalah membuat orang sadar (terutama para ibu, sebagai pelaku dan pengelola ekonomi keluarga) dan terbuka pikiran mereka tentang pentingnya mengelola keuangan keluarga yang baik untuk memenuhi kebutuhan sekarang dan masa depan. Dengan pengabdian ini diharapkan ada perubahan dalam pola pikir dan sikap masyarakat tentang mengelola keuangan keluarga dan membuatnya lebih efisien dan efektif.
Analysis The Wave Equation Of The Dispersion Term On The Wave Group Velocity Sumihar Simangunsong
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 3 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 3 (Januari 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i3.5440

Abstract

This study aims to obtain the dispersion equation for the group velocity of waves in a medium. A dispersive medium is a medium in which, when a wave enters the area, the wave undergoes changes in shape and energy. The purpose of this study is to demonstrate how the integral integration method obtains the dispersion equation. This research is qualitative. The location of this research is at the TD Pardede Institute of Science and Technology. From the analysis in this study, it was found that the wave intensity decreases towards the depth of the dispersive medium, assuming that the attenuation coefficient (μ) remains continuous throughout the depth of the material the wave passes through. In the case of seismic waves, when the wave travels through a medium, its intensity decreases with distance. When the absorption coefficient a = 0, the wave is not absorbed but reflected, and when a = 1, the wave is completely absorbed. If a = 0.5, 50 percent of the energy is absorbed. This absorbed energy is converted to heat. In some cases, the absorbed energy can increase the energy of the particles of a substance.
Co-Authors Melva Elvrida Pangaribuan Nalom Dahlan Marpaung Piala Mutiara Tambunan, Yunita Kristina