Tongkat ultrasonik ini dirancang dengan tujuan memberikan sedikit keringanan bagi para penyandang tuna netra dalam melakukan kegiatan sehari-hari terutama dalam hal berjalan. Perancangan tongkat elektronik ini juga didasari oleh rasa empati penulis terhadap sesama makhluk ciptaan Tuhan Yang Maha Esa untuk dapat saling membantu satu sama lain. Adapun  fungsi  dari  tongkat  ini  adalah mendeteksi adanya rintangan yang akan dihadapi para tuna netra selama melakukan kegiatan berjalan didalam maupun diluar ruangan. Dengan memanfaatkan mikrokontroller jenis Arduino Uno sebagai rangkaian pengontrol, sensor distance ultrasonic jenis PING dari Parallax dan sensor infra merah jenis IR Sharp GP2Y0A21 serta memberikan indikator berupa motor DC sebagai penghasil getaran dan buzzer sebagai indikator bunyi sehingga dapat dirasakan dengan baik oleh penggunanya. Kata Kunci : Tongkat, Tuna Netra, Arduino Uno , sensor ultrasonik, sensor Optic IR Sharp GP2Y0A21.

The spread of the Covid-19 virus continues to increase, so it is necessary to take preventive measures through increasing public awareness of the implementation of the COVID-19 prevention health protocol. Raising awareness can be done through socialization starting from the dangers of civid-19 and implementing standards for the prevention of covid-19 health protocols. The method used can be through the lecture method through online meetings. the media that can be used are the material of the dangers of covid-19, and the health protocol for the prevention of covid-19 according to the standards of the Ministry of Health of the Republic of Indonesia. evaluation is carried out by providing a questionnaire before and after socialization activities. The results of the socialization show a significance of 0.000, which is less than the significance level (a) of 0.05. These results mean that there is a significant difference between awareness of the dangers of covid-19 and health protocol care behavior before and after socialization. The t table shows that the t count is negative, namely 7.844, which means that the average before was lower than after the socialization was carried out.

The National Nuclear Energy Agency of Indonesia (BATAN) has promoted the culture and assessment of nuclear security in Indonesia since 2010. After conducting a successful trial assessment in 2012, BATAN performed a second self-assessment in 2015 in three nuclear facilities. The assessment's methodology followed the guidelines set by the International Atomic Energy Agency (IAEA). The objective of this paper is to demonstrate the techniques used in applying the IAEA methodology and to discuss the primary outcomes of the assessment. The data collection consisted of surveys, interviews, document reviews, and observations. A total of about 50% of the three facilities' employees participated in the survey and/or interview process. Three categories of sub-cultures-security personnel, non-structural personnel, and structural personnel-were assessed, covering a range of twelve general characteristics and thirty indicators of security culture. An overall average score of 5.25 on a 7-point scale was obtained from the survey. A consolidated assessment of the results from all data collection techniques showed that most of the security culture characteristics assessed reflected some of the anticipated best practices and also demonstrated strengths necessary in security culture. However, certain aspects of leadership behavior need to be enhanced, especially ones relating to motivation. By examining the survey results from the 1 three subcultures, we conclude that further dissemination of nuclear security concepts and policy is needed-particularly to researchers and administrative personnel. The methodology for the IAEA's nuclear security culture self-assessment has been successfully implemented and has resulted in positive outcomes. The potential improvement of assessment implementation should also be considered, such as in the development of survey questions and the selection of indicators to be elaborated on interviews.

Sepeda motor merupakan alat transportasi yang jumlahnya semakin meningkat di Indonesia. Peningkatan jumlah sepeda motor berpengaruh terhadap peningkatan jumlah konsumsi bahan bakar. Peningkatan konsumsi bahan bakar dapat diatasi dengan salah satu cara yaitu melakukan penghematan bahan bakar pada sepeda motor menggunakan teknologi Hidrokarbon Carbon Crack System (HCS). Tujuan dari penelitian ini adalah mendeskripsikan pengaruh penggunaan teknologi HCS terhadap konsumsi bahan bakar sepeda motor Honda MegaproJenis penelitian ini merupakan penelitian eksperimental. Sampel dalam penelitian ini adalah sepeda motor Honda Megapro 150 cc tahun 2004. Teknik pengambilan sampel dalam penelitian ini menggunakan teknik purposive sample. Pengujian dilakukan dengan cara mengukur waktu yang diperlukan mesin untuk menghabiskan bahan bakar dalam volume tertentu pada putaran mesin 1500-6500 rpm dengan selisih setiap pengujian sebesar 500 rpm. Analisa data menggunakan metode deskriptif komparatif. Setelah semua data diperoleh, kemudian hasilnya dibandingkan antara data pengujian konsumsi bahan bakar sepeda motor standar dengan sepeda motor yang menggunakan teknologi HCS.Hasil dari penelitian ini menunjukkan pada putaran mesin antara 1500-6500 rpm menggunakan katalis ganda spiral HCS (panjang 500 mm) dengan satu tabung Pertamax dengan volume satu liter, konsumsi bahan bakar spesifik menurun sebesar 40,21%. Pada putaran mesin yang sama menggunakan katalis ganda spiral HCS (panjang 500 mm) dengan dua tabung Pertamax dengan volume dua liter, konsumsi bahan bakar spesifik menurun sebesar 51,80%. Hasil penelitian menunjukkan bahwa penggunaan katalis ganda pada HCS memiliki pengaruh yang baik terhadap konsumsi bahan bakar. Penggunaan HCS dengan katalis ganda dan menggunakan dua buah tabung bahan bakar dapat lebih meningkatan efisiensi bahan bakar.  Kata kunci: hidrocarbon crack system, konsumsi bahan bakar, otomotif.

External lightning protection system consisting of a finial, down-conductor and grounding are important aspects in the installation of lightning rods. The study was conducted by using a finial rod copper that aims to study the protection angle of a lightning rod. High finial of the earth would determine the angle of protection desired. Based on this research, the object of protection is the angle between 85,6°-89,3°. This suggests that a lightning rod has limitations in protecting an area. The larger the area to be protected, the more number of lightning rod needed.