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Rahmayanti, Handika Dany
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PELATIHAN PEMBUATAN CANGKANG KERANG MENJADI KERAJINAN TANGAN (BROS) DI MUARA ANGKE, JAKARTA UTARA Ardiani, Septia; Rahmayanti, Handika Dany; Akmalia, Nurul; Nulhakim, Lukman
Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 7, No 4 (2024): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/japhb.v7i4.7725

Abstract

Limbah cangkang kerang yang bertumpuk-tumpuk di sebagian besar wilayah Muara Angke menjadi masalah lingkungan yang signifikan. Limbah ini harus dikelola dengan baik karena jika dilihat dari sisi ekonomi berpotensi untuk menambah pendapatan masyarakat dengan mengolahnya menjadi suatu produk kerajinan seperti bros. Sasaran pelatihan ini adalah ibu-ibu PKK Kelurahan Pluit. Tujuan dari pelatihan ini adalah untuk meningkatkan keterampilan ibu-ibu dalam mencuci cangkang kerang dan membuat bros dari limbah cangkang kerang. Metode yang digunakan adalah pelatihan. Materi yang diberikan dalam pelatihan ini adalah materi tentang cara memilah cangkang kerang, cara mencuci cangkang kerang, serta cara membuat bros dari cangkang kerang. Narasumber yang hadir adalah seorang pengrajin manik-manik terkenal yang memiliki brand bernama “Koleksikikie”. Setelah materi, dilakukan praktek pembuatan bros. Masing-masing peserta diberikan satu box alat dan bahan yang dibutuhkan untuk membuat bros. Setiap peserta wajib menghasilkan minimal satu produk bros berbahan cangkang kerang. Kesimpulan kegiatan ini adalah meningkatnya keterampilan ibu-ibu PKK Muara Angke dalam memuat bros cangkang kerang, serta dihasilkan 25 bros karya ibu-ibu PKK. Peningkatan keterampilan ini dapat dilihat dari hasil penilaian expert yang menunjukkan bahwa sebanyak 55% ibu-ibu bisa membuat bros dengan sangat bagus, 25% bagus,dan 20% kurang bagus.
Perancangan Desain Kemasan sebagai Upaya Rebranding Promosi Produk UMKM Yakob, Freddy; Kartika, Tipri Rose; Akmalia, Nurul; Ardiani, Septia; Rahmayanti, Handika Dany
Kreator Vol. 11 No. 2 (2024): Kreator
Publisher : P3M Politeknik Negeri Media Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46961/kreator.v11i2.1562

Abstract

The packaging design process for SMEs is often not a primary priority. As a result, business owners frequently overlook the branding process. Therefore, the design of this packaging is necessary as an effort to rebrand their products to increase their recognition. This study employs a qualitative descriptive method, utilizing interviews and literature reviews. Through the processes of recopy, recolor, and relayout, a redesign is carried out for products that previously had existing designs. The results show that recopy effectively communicates the message, recolor enhances the product's visual appeal, and relayout gives the packaging a more premium appearance, enabling SMEs to elevate their market position. This packaging design process is not merely about changing the appearance but is also a message construction process through words, colors, and layouts that can leave a lasting impression on consumers' minds.
Compacted Dry Biocellulose Formulated from Xanthosoma Undipes K. Koch (Taro): Characterization of Physical and Chemical Properties Ardiani, Septia; Rahmayanti, Handika Dany; Akmalia, Nurul; Jasmine, Annisa
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11098

Abstract

This study aims to evaluate the physical properties of compacted dry biocellulose derived from Xanthosoma undipes K. Koch (taro). Three types of substrates were fermented using Acetobacter xylinum: nata de taro (NDT), nata de coco-taro (NDC-T), and nata de coco-taro-pineapple-tomato (NDC-TPT). The resulting biocellulose products were compacted using a hot press (5000 kgf/cm² for approximately 15 minutes at 120°C) and then dried at 30°C to produce solid biopolymer sheets. Characterization included thickness measurement, FTIR spectroscopy, UV-Vis spectroscopy, and SEM-EDX microscopy. Results showed that the cellulose chemical structure remained intact after compaction. The NDC-TPT sample exhibited the highest porosity and water absorption capacity, along with significant UV light transmittance, making it a promising candidate for biodegradable film applications and active moisture-absorbing materials. Microscopic analysis revealed that substrate composition strongly influenced fiber density and pore size, with NDT showing the densest structure and NDC-TPT the most porous.
PHYSICAL DISTANCING ALARM SYSTEM BASED ON PROXIMITY SENSOR AND MICROCONTROLLER Yuliza, Elfi; Ekawita, Riska; Vionita, Vionita; Fauzi, Muhammad Khafid; Sari, Vera Fuspita; Rahmayanti, Handika Dany
Indonesian Physical Review Vol. 4 No. 2 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i2.85

Abstract

Keeping an interaction distance between 1 to 2 m is one of the health protocols during the COVID-19 pandemic. This attempt was made to reduce the spread of the Coronavirus. On the other hand, this health protocol activity is often overlooked, whether intentionally or not. According to the mechanism of the Coronavirus spreading in the form of droplets that comes out during communication, sneezing, or coughing, maintaining distance can be the best effort to minimize the transmission of this virus. Therefore, the availability of a simple, accurate and user-friendly physical distancing alarm system could be a solution in the implementation of this health protocol. In this study, a prototype of a physical distancing alarm based on a distance sensor and a microcontroller in the form of an identity card was developed. Several steps are conducted in developing of this system, namely designing the instrumentation system and testing the performance of the system. System performance is tested through variations in the distance and angle of the objects. The measurement results show that the system can detect objects in front of the sensor up to a distance of 2.8m and an angle of  for a distance of 1m. The measurement using different angles of objects was performed for objects on the left and right sides of the sensor. In addition, a warning alarm will be on when the distance of the object exceeds the allowed distance.  
DRIED NATA DE COCO WITH WATER ABSORPTIVITY COMPETING SILICA GEL Rahmayanti, Handika Dany; Yuliza, Elfi; Amalia, Nadya; Abdullah, Mikrajuddin
Indonesian Physical Review Vol. 7 No. 3 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i3.383

Abstract

Nata de Coco (NDC)  is a network of cellulose fibers that traps abundant of water. If a freshly made NDC is dried to remove nearly all trapped water, we will get a very hygroscopic material. This material is potential for making water adsorber that might compete the well known silica gel. NDC was prepared using standard methods and its water absorption was investigated. Dried NDC was used in this study. For comparison, we also investigated the water absorption of several commercial NDC. To determine its business prospects, the water absorption of silica gel was also investigated. The results showed that dried NDC could absorb water vapor comparable to the absorption of commercial silica gel. This suggests that dry NDC has the potential as an alternative water vapor absorber in food packaging. The advantages of the NDC compared to silica gel are safer and environmentally benign, and easily decomposed.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Majid Adryans Ahmad Khoiri Akmalia, Nurul Apit Fathurohman Ardiani, Septia Cempaka, Putri Surya Edy Wibowo Elfi Yuliza Euis Sustini Fatiatun, Fatiatun Fauzi, Muhammad Khafid Firdaus Firdaus Haryasena Gusti Andayu HM Didik Ikhwannanda, Dias Jasmine, Annisa Kartika, Tipri Rose Khairurrijal Khairurrijal Kusnanto Mukti Wibowo Lukman Nulhakim Mamat Rokhmat Mikrajuddin Abdullah Mochammad Mahardika Mulyana, Raina Munir, Rahmawati Munir, Rahmawati Nadya Amalia Novitri Hastuti Novitri Hastuti, Novitri Nurul Akmalia Rahmawati Rahmawati Rahmawati, Rahmawati Riska Ekawita Sari Setyaning Tyas Sari, Vera Fuspita Septia Ardiani Septia Ardiani Sparisoma Viridi Suryani, Meuthia Tommy Prasetya Kana Trifajar Yurmama Supiyanti Vionita, Vionita Widiargo, Antonius Edi Yakob, Freddy Yeni Nurhasanah Yurmama, Tri Fajar Yurmama, Trifajar Yuyun Khairunisa