The program that was implemented at Nurul Wathan (NW) was the result of research at the Rembitan Observatory to measure the earth's magnetism using a device called Proton. The international unit for measuring the earth's magnetism is the Tesla, specifically the nTesla earth magnet (Nano Tesla). The stages of implementing the solution are adjusted to the characteristics of the stages of the disaster cycle. During a disaster, full of activities in an emergency situation, post-disaster, reduce the complexity of the problems in reconstruction and rehabilitation. Pre-disaster requires thorough planning. Communities that are exposed to disasters are very diverse. For those who have been educated or those who have not received formal education, they need to understand the importance of disaster risk reduction (DRR).
The geomagnetic field is a kind of natural potential field in the Earth. A three-year research program for exploration of this field has been conducted in the Lombok Island-Indonesia, where extreme geomagnetic anomalies with two very strong dipolar structures exist. The research aims to construct a system to collect and concentrate geomagnetic fields, in order to possibly use the concentrated fields for geomagnetic power plants or to integrate the system with a field pick-up unit scheme by means of wireless power transfer. The designed geomagnetic concentrator system has been tested in a self-arranged semi-anechoic chamber with a pair of Helmholtz coils, induced with DC currents to simulate the regional ambient static geomagnetic fields. Several tests have proven the performance of the system in onedimensional space. This paper presents the results of detailed three-dimensional measurements of static magnetic fields in the semi-anechoic chamber. Static magnetic fields over the entire chamber are drawn in their magnitudes and directions, by interpolating data obtained in regular grids of 50cm × 50cm. In specific areas, where the Helmholtz coil is placed, extra grids of 25cm × 25cm are inserted to sharpen the fields' depictions. Results show that by inducing 1 A current on each of coils will produce magnetic fields, concentrated over the surrounding area of Helmholtz coil. The intensities of magnetic fields over this area are about 15,00045,000 nT, which can be used to model the geomagnetic fields of Lombok Island. Using the results of 3D field mapping, it will be possible to get the optimum placement of the geomagnetic concentrator system when it is tested on the chamber.
After the 2018 Lombok Earthquake, buildings at the Faculty of Engineering, University of Mataram (FT Unram) were severely damaged and there was no comprehensive treatment. Facilities for earthquake mitigation are still minimal and if available they are not designed and placed properly. Some parts of the building have been renovated but appear unfinished, while there were new constructions that have not been investigated regarding their suitability with earthquake mitigation. Anticipating re-occurrence of a major earthquake in Lombok, it is very necessary to implement earthquake mitigation at FT Unram. In this paper, results of vulnerability investigation of each building will be presented including number, type, and level of damages as well as their locations and detailed documentation of each point of damages in form of pictures and photos/videos. Through this activity vulnerabilities of each building can be identified comprehensively, so that appropriate treatments can be carried out, and the safest evacuation route can be planned as well.
Energi listrik merupakan salah satu kebutuhan manusia yang sangat penting dan vital yang tidak dapat dilepaskan dari keperluan sehari-hari. Tanpa disadari pada umumnya kebiasaan masyarakat dalam memperlakukan peralatan listrik/elektronik masih belum memperhatikan terhadap aturan standard baku. Salah satu perilaku kebiasaan yang kurang tepat apabila peralatan elektronik yang tidak digunakan, dalam posisi standby tetap dibiarkan terhubung ke stop kontak listrik. Hal ini dapat berpotensi menimbulkan bahaya panas dan pemborosan energi disebut vampire listrik. Desa Tumpak sebagai bagian kawasan KEK Mandalika maka peran serta masyarakat dalam program konservasi energi sangat diperlukan. Melalui kegiatan edukasi PKM telah terjadi peningkatan kemampuan peserta dari sisi teori dan praktik budaya hemat energi dari vampir listrik. Hasil evalusi pre-test dan pos-test terjadi peningkatan pemahaman dasar dan lanjut peserta sebesar 39,42%. Pada studi kasus pengukuran vampir listrik beban peralatan listrik/elektronik rumah tangga golongan tarif R-1/TR dengan daya 1300 VA, rerata konsumsi vampir listrik energy standby meyerap energi listrik sebesar 21,463344 kWh/bulan. Dengan edukasi ini maka dapat menghemat biaya sebesar Rp.32.195,00/bulan.
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