Pengaruh lingkungan kerja fisik dan lingkungan kerja non fisik terhadap tindakan keselamatan dan kesehatan kerja (K3) di PT. Mitra Bumi

Occupational Safety and Health (OSH) is one of the protection measures aimed at all potentials that can cause danger, so that workers and other people in the workplace are always safe and healthy and all production sources can be used safely and efficiently. The purpose of this study is to determine the relationship between physical work environment (lighting, temperature, noise and humidity) and non-physical (knowledge of workers, behavior based safety, availability of tools and company regulations) to occupational safety and health (OSH) measures and to determine the most important factors. dominant in the physical work environment and non-physical work environment to the Occupational Safety and Health (OSH) action at PT. Mitra Bumi. This research was conducted at PT. Mitra Bumi in January-March 2020. This type of research is a quantitative study with a cross sectional study approach. The results showed that there is a relationship between the physical work environment (lighting, temperature, noise and humidity) to the Occupational Health and Safety (OSH) measures at PT. Mitra Bumi. There is no relationship between the non-physical work environment (workers' knowledge, behavior based safety, availability of company tools and regulations) to Occupational Safety and Health (OSH) actions at PT. Mitra Bumi. The most dominant factor on the action of Occupational Safety and Health (OSH) at PT. Mitra Bumi is a physical work environment, namely lighting and noise.

Digital Circuits and Systems based on Single-Electron Tunneling Technology

In this work, digital circuits and systems based on single-electron tunneling technology will be presented and analyzed. A simple design methodology will be proposed using a programmable single-electron NAND/NOR gate as a building block. Aspects such as operating temperature, noise, and charge fluctuations will be discussed. SET devices can reach ultra-low power consumption and high frequencies during operation. Although there are already many digital SET circuits and systems previously proposed and studied, there are few works about design methodology for SETs. This study shows a proposal for designing combinational and sequential singleelectron circuits aiming at systems design. In the end, this work reinforces the use of single-electron technology as a possible large scale device in the future.

Implementasi Artificial Intelligence pada Sistem Pengawasan Pasien Rumah Sakit

This study was conducted to create a system that can megawasi and detect temperature,noise, patients down from the bed in the patient's room in the hospital. This system is done by designing to create and implement system components including Arduino Mega as process controller, switch as emergency calling, LED and LCD to notify detected information, DHT11 sensor as temperature sensor, Sound sensor micropone as noise sensor, sensor loadcell as sensor weight and MP3 module as a sound notification, location detected in patient room in hospital. The results showed that the tool is made to function properly and can be used directly in place that requires.

Measuring the Daylight Performance of Classrooms: Can a One Point Sensor Measurement Predict the Daylight Distribution within a Space?

The New Zealand Ministry of Education (MoE) has begun measuring the light, temperature, noise and CO2 level of 21 selected schools using a single sensor. This sensor is being developed as a method for routine measurement in order to understand the performance of New Zealand's school buildings. This study used a Climate Based Daylight Modelling to appraise the MoE methodology, to determine what can be learned from the use of a single sensor in one location in a classroom, to estimate the lighting comfort across a space. Daylighting is focused upon because it has the most spatial variation in a space. The findings of this study support the assertion that a one-point sensor measurement on a vertical wall could predict illuminance across the centre of the horizontal work plane; and provide a useful benchmark to estimate the light distribution across a space. However, regardless of how representative of a space a one-point measurement is, it is difficult to quantify the daylight distribution over time throughout the space. If various daylight indicators are well documented and analysed alongside the measured data, a strategically positioned one-point sensor on the vertical wall could be useful in predicting the daylight quantity of a space.

Measuring the Daylight Performance of Classrooms: Can a One Point Sensor Measurement Predict the Daylight Distribution within a Space?

The New Zealand Ministry of Education (MoE) has begun measuring the light, temperature, noise and CO2 level of 21 selected schools using a single sensor. This sensor is being developed as a method for routine measurement in order to understand the performance of New Zealand's school buildings. This study used a Climate Based Daylight Modelling to appraise the MoE methodology, to determine what can be learned from the use of a single sensor in one location in a classroom, to estimate the lighting comfort across a space. Daylighting is focused upon because it has the most spatial variation in a space. The findings of this study support the assertion that a one-point sensor measurement on a vertical wall could predict illuminance across the centre of the horizontal work plane; and provide a useful benchmark to estimate the light distribution across a space. However, regardless of how representative of a space a one-point measurement is, it is difficult to quantify the daylight distribution over time throughout the space. If various daylight indicators are well documented and analysed alongside the measured data, a strategically positioned one-point sensor on the vertical wall could be useful in predicting the daylight quantity of a space.

Development of Incubator Analyzer Using Personal Computer Equiped With Measurement Certificate

Baby incubators are used for premature babies where babies are born prematurely. To ensure the accuracy of medical devices, periodic tests and controls need to be carried out aimed at reducing the risk of measurement. The baby incubator can be tested with a calibration device which is a device to calibrate temperature, noise, humidity, and airflow so that conditions remain stable and within normal limits. The purpose of this study was the development of a PC (Personal Computer) performing Incubator Analyzer with noise and airflow parameters. This type of research uses after only design. The standard incubator analyzer is not equipped with a PC and data processing via Excel, so the researchers created an Incubator Analyzer device that has four parameters to measure temperature, noise, humidity, and airflow. Using the Atmega328 Microcontroller as a data processor, equipped with sending data via Bluetooth HC-05 with data storage and output results will be displayed on a PC. Noise parameters using the Analog Sound Sensor V2 sensor and have the biggest error at 37oC setting temperature that is equal to 0.17%. While the airflow parameter uses an airflow sensor with type D6F-V3A01 and has the biggest error that is 0.5% at a temperature setting of 36oC and 37oC. The use of displays on personal computers and data processing using Excel, allows users to monitor calibration and data processing. The feasibility of this device is proven. Therefire, this design can be used for baby incubator calibration.

Passengers Comfort Perception and Demands on Railway Vehicles: A Review

Trains are becoming a popular way of transportation driven by comfort and ecology reasons. Latest statistics showed an increasing of 40% on the number of passengers in the last decade. The development of new high-speed trains promoted an evolution on the coaches interiors, as to make railway transportation more attractive. To cope this objective, new requirements were set, namely high levels of comfort and safety. In complement, multiple long-term ride comfort evaluation methods have been developed. The aim of this work is to present a review on the passengers’ comfort perception in railway vehicles. The standards ISO 2631, EN 12299 and the Sperling’s method are the most used ones. They refer several factors, as the vibration (level, frequency and duration), temperature, noise and area of the train per capita. Additionally, the perception of reduced accidents delayed the studies of passive security. Therefore, recent works focus on reducing the consequences of the second impact in case of accident and minimize the biomechanics injury criterion, through new interiors design layouts. Keywords: Railway vehicles, Passengers comfort, Posture, Ride evaluation, Passive safety