Indonesia, a developing country situated at the convergence of four tectonic plates, is highly vulnerable to natural disasters such as earthquakes, tsunamis, volcanic eruptions, and landslides. These geological conditions result in frequent disruptions, particularly affecting access to electricity in disaster-hit areas. Reestablishing power supply is often delayed due to logistical challenges. Therefore, alternative energy solutions are essential to provide immediate and reliable power during emergencies. One practical and sustainable option is the use of Solar Power Plants (PLTS), which rely solely on sunlight and produce clean energy with minimal carbon emissions. The earth’s surface can receive up to 1,000 Watts per square meter under ideal weather, making solar energy a viable solution. PLTS systems offer flexibility and can be adapted in mobile formats. This study proposes the design of a Mobile PLTS system suitable for use in disaster operations led by BASARNAS (National Search and Rescue Agency). Data were collected from BNPB, BMKG, BASARNAS, and NASA, focusing on geographical characteristics, solar radiation levels, and the dimensions of BASARNAS Mobile Trucks. The study aims to determine suitable system specifications, equipment needs, and potential energy output. The results show that the proposed Mobile PLTS system requires 20 solar panels (each 300 Wp), with an average energy production of 27.70 kWh. The system includes 16 batteries for energy storage. Additionally, the mobile unit design allows space for transporting logistics and essential tools, making it a multifunctional and strategic solution for disaster response in Indonesia.

This research develops an IoT-based gas detection system using an MQ2 sensor, WeMos D1 Mini, and the Blynk application to monitor hazardous gases such as LPG. The MQ2 sensor detects gases, the WEMOS D1 Mini transmits data via Wi-Fi, and Blynk enables real-time monitoring and notifications if gas concentrations reach a specified threshold. Results indicate that this system is effective, accessible, and suitable for enhancing safety in environments prone to gas leaks.
 

.Every company certainly has operating equipment that usually runs continuously and relies on electricity as an energy source whose distribution must be appropriate to be efficient in its use. Every company that has important activities that use electronic devices, of course, must have a power backup so that sudden power cuts do not occur, because if this happens frequently it will cause damage to electronic devices, one of which is using a UPS (Uninterruptible Power Supply). Uninterruptible Power Supply (UPS) is an electronic device capable of providing temporary backup power when the main power supply is cut off. This UPS is also an electronic device that can protect all types of electronic equipment that is vulnerable to current or voltage instability. The purpose of this study is to understand and know the working principle and how to maintain the use of UPS. The method used is the method of observation in the company to obtain research data. At PT. ASDP Indonesia Ferry uses two types of UPS which have different capacities, namely 0.8KVA and 3KVA to supply power to each electronic device that is used regularly. Of the two types of UPS, it can be used to back up electrical power when the main power source is suddenly cut off.
 
 

Determining majors is one of the obligations for all students who still want to continue their education. Decisions taken often cause problems when differences in abilities and limitations in thinking result in not graduating on time. Also, we often see majors chosen only because they follow the advice of friends or family and because of the development of the need for human resources in the world of work. Determination of majors should be done by considering the capabilities possessed. Therefore, this application was created which aims to design an expert system that can provide an overview for prospective students about what majors are suitable or in accordance with their abilities. The method used in making this expert system is Forward Chaining, where the facts related to determining the direction are stated first, then draw an appropriate conclusion. By making this application, it is expected to provide convenience for prospective students both in terms of time and cost.

Perkembangan mengenai teknologi sudah semakin maju, setiap orang bisa dapat dengan mudah mengakses jaringan internet kapanpun dan dimanapun berada. Dalam hal ini akses internet dalam perkantoran hal yang wajib untuk menunjang operasional dan perkembangan perusahaan. Semakin besar suatu perusahaan maka akan sangat membutuhkan keamanan dan manajemen yang baik dalam melakukan pertukaran data melalui internet serta monitoring cabang dari perusahaan tersebut, serangan dan pengintaian data menjadi hal yang menakutkan karena dapat mengancam keberlangsungan perusahaan dari hal yang tidak diinginkan. Untuk mengatasi masalah tersebut perusaahan dapat menerapkan keamanan jaringan dengan menggunakan teknologi VPN (Virtual Private Network) dengan metode L2TP (Layer 2 Tunneling Protocol) dan IPSec serta menggunakan routing OSPF. Teknologi VPN ini mampu mengirimkan data melalui jaringan internet dengan mengenkripsi data terlebih dahulu sebelum dikirimkan sehingga aman dari ancaman pihak luar
 
 
 

Briquettes are alternative energy that can be used as substitutes of petroleum and gas. Coal briquettes generally have a slowignition time. Therefore, this study modifies coal briquettes by adding a  blazingstimulant of palm frond fiber and potassium chlorate. The objectives to be achieved in this study  wereto find out the effect of pressure variations modificationsof coal briquettes to the ignition time. In this study, the briquetting process was done by varying pressure of 200 Psi, 300 Psi, 400 Psi, 500 psi and 600 Psi. Coal briquette powder particle size used in this study was 80-100 mesh while the particle size of oil palm frond fibers used were 40-50 mesh. The results showed that the fastest ignition time obtained at a pressure of 200 Psi with ignition time 132 seconds. In conclusion, the pressure variations  on coal briquettes modifications infunced ignition time.
 
  

Technology developments in the era of the industrial revolution 4.0 provide many opportunities to improve supply chain performance and performance. The existence of the waste processing industry as a business has prospects for development, given the large amount of waste generated by the community and the need for several processed products. PT A reduced the amount of garbage that accumulates in the final disposal site (TPA) by reprocessing the waste produced by the community. The existence of waste banks, government agencies, hotels, zoos, and Islamic boarding schools is one of the sources of waste that is processed for waste products. This paper seeks to develop the concept of a digital supply chain by adopting the supply chain model run by PT A. The initial identification presented in this paper can result in several technology identifications that need to be prioritized in implementing relevant technologies in the industry. The expected impact of this implementation is an increase in supply chain performance

Jaminan Persalinan (Jampersal) adalah jaminan pembiayaan pelayanan persalinan yang meliputi pemeriksaan kehamilan, pertolongan persalinan, pelayanan nifas termasuk pelayanan KB pasca persalinan dan pelayanan bayi baru lahir yang dilakukan oleh tenaga kesehatan di fasilitas kesehatan . Jaminan Persalinan dimaksudkan untuk mengurangi hambatan finansial bagi ibu hamil di Indonesia khususnya masyarakat menengah ke bawah yang tidak memiliki jaminan pembiayaan persalinan. Dengan demikian, kehadiran Jaminan Persalinan diharapkan dapat mengurangi angka kematian ibu dan angka kematian bayi di Indonesia. Dalam  aktifitas pengelolaan data bantuan sosial Jaminan persalinan belum menerapkan komputerisasi secara optimal. Dalam pengolahan data tersebut penggunaan  computer hanya sebatas pengetikan di aplikasi MS. Excel  sehingga dalam pengelolaan data dan hasil laporan relative lama. Sehingga diperlukannya sebuah sistem yang dapat mempermudah serta mempercepat dalam proses pengelolaan data jampersal agar terlaksananya jaminan persalinan bagi masyarakat miskin.

Pentingnya kedisiplinan pada Kapal Crest Spartan 8 khususnya pada kedisiplinan Jaga Mesin dikarenakan sering terjadi keterlambatan serah terima jaga di kamar mesin, contohnya pada saat jaga malam sering anak buah kapal (ABK) yang mau jaga lambat turun di kamar mesin. Jadi harus difokuskan perhatian kedisiplinan kepada ABK agar supaya ABK tidak lagi lambat waktu tukar jam jaga. Tujuan untuk melaksanakan kedisiplinan secara rutinitas khususnya pada jaga mesin adalah untuk memperlancar proses operasional kapal, dan seorang Chief Engineer bertanggung jawab untuk me manage kru nya dalam melakukan kedisiplinan jaga. Agar semuanya berjalan lancar tanpa ada kendala. Sumber data diperoleh secara langsung di atas kapal dan dari buku-buku referensi yang berkaitan dengan judul. Kesimpulan dari penelitian ini agar para ABK mesin dapat lebih fokus dan disiplin dalam melaksanakan tugas jaganya. Penyebab terjadinya ketidakdisiplinan ABK di kapal MV. Crest Spartan 8 khususnya ABK mesin adalah kurangnya pengawasan dari kapten dan Kepala Kamar Mesin terhadap ABK dek dan mesin yang melaksanakan dinas jaga, dan atasan juga kurang tegas dalam memberikan teguran pada ABK yang pulang terlambat saat melakukan aktivitas di darat (pesiar) terlebih lagi ABK yang pulang pesiar dalam kondisi kurang fit.

Antenna mikrostrip planar pita lebar dengan teknik defected ground structure (DGS) telah disajikan. Ukuran antenna yang dirancang adalah 56 mm x 47 mm x 1,6 mm. Antenna dengan teknik DGS ini memiliki parameter return loss sebesar -24,8 dB dan -19,1 dB yang beroperasi masing-masing pada frekeunsi kerja 5,57 GHz dan 3,51 GHz. Antena ini menyediakan persentase bandwidth 52%, mulai dari 3,4 GHz hingga 5,9 GHz dengan penguatan konstan. Antenna ini digunakan untuk aplikasi ultra wideband (UWB) dan komunikasi nirkabel modern seperti wifi, WLAN dan Wimax.