A Human Reliability Assessment of Marine Engineering Students through Engine Room Simulator Technology

Background It is widely accepted that the simulators are important technological instruments which can be utilized as an effective assessment tool in various domains Developing technologies allow the functionality levels of simulators to increase behavioural realism. For this reason, students in higher educations are involved in various useful practices using simulators. Purpose In this respect, simulators can also provide great opportunities to conduct analysis through human error on which this study conceptualized. Model In this context, this study proposes a human error evaluation approach through simulator technology whilst taking advantage of the SOHRA (Shipboard Operation Human Reliability Analysis) method. As a case study, the proposed approach was applied to a simulator environment with the involvement of marine engineering students. Throughout this case, the students were challenged with various error producing conditions (EPCs) while their performances were observed. Results The attendees were achieved good practice when confronted with EPC23 (unreliable instruments), EPC17 (inadequate checking), and EPC5 (spatial & functional incompatibility). However, the points open for improvement are found on EPC2 (time shortage), EPC24 (absolute judgments required), EPC18 (objectives conflict) and EPC9 (technical unlearning). Conclusion This framework can be utilized in simulator-based training activities to increase operational awareness of marine engineering students. The recent developments in simulator technology can boost the effectiveness of the proposed framework.

DEVELOPMENT STRATEGIC OF SIMULATOR TECHNOLOGY 4.5 GENERATION FIGHTER AIRCRAFT FOR SUPPORTING NATIONAL DEFENSE SYSTEM

<div><p class="Els-history-head">The fighter aircraft project is one of the defense and security equipment (alpalhankam or alat peralatan pertahanan dan keamanan) priority programs contained in the defense industry roadmap. Indonesia and South Korea undertook a joint development program in developing 4.5 generation fighter aircraft. However, Indonesia experiences several obstacles in the development of fighter aircraft, one of which is the ability of disparity and mastery of fighter technology. One of the critical components used as one of the development programs is simulator technology development. Mastery of simulator technology can improve the ability of Technology Readiness Level (TRL) from technology development fighter aircraft and can cause multiplier effects in other fields. Therefore we need a development strategy that is appropriate for the development of simulator technology. This study aims to analyze and define the benchmark level of performance or from the critical components which will then be used as a reference for the development strategy of the 4.5 generation fighter simulator for joint development projects. The method used in this study is a mixed-method with an approach system engineering uses quality function deployment tools and Critical Technology Element (CTE) technology assessment to identify which CTE then used as a reference strategy for the development of fighter simulator technology. The results of the study show that there are several CTE values along with simulator technology performance scores, among others mission 92.5%, data 83.56%, motion 52.51%, and strategic options that can be used in the technological development of fighter simulator generation 4.5 such as strategic joint development, self-development, and local content/offset.</p></div><div> </div>

Nano-Scale Vee Yagi-UDA Antenna Based Nano Shell-Silver Coated Silica for Tunable Solid –State Laser Applications

A numerical study on the performance of the nano-scale antenna based on VeeYagi-Uda geometry that is constructed from Nano Shell-Silver Coated Silica (NSSCS) chains is investigated for tunable solid-state laser applications. In this study, a Finite Integral Technique (FIT) based on the formulations of Computer Simulator Technology-MicroWave Studio (CST MWS) software package is invoked to evaluate the antenna parameters such as: Reflection coefficient (S11), gain/ directivity, and directivity. Before conducting the simulation study, the refractive index properties of the NSSCS are evaluated according to Lorentz distribution function of a hetero-structure junction. The proposed antenna shows three resonance modes at 75 THz, and 175 THz, and 266 THz. It is found the best antenna matching, S11<-10dB, at 75 THz and 175 THz about -23 dB and -15 dB, respectively. However, at 266 THz, it is found -3 dB in max. The antenna shows acceptable gain values at the three considered frequencies about 2.5 dBi, 3.5 dBi, and 2 dBi, consistently. Therefore, the antenna exhibits a high directivity at 175 THz and 266 THz in comparison to the first mode at 75 THz. Next, a matching circuit is coupled to a nano-circuitry to tune antenna around 175 THz. The maximum emitted electric field is found to be around 175 THz. Finally, it is found that the introduction of the matching circuit has a significant tuning ability on the second mode at 175 THz; however, at the other two modes the tuning does not show a significant change

Creating high contrast in virtual night driving

The reproduction of glare scenarios in driving simulators is restricted by the limitations of conventional projector and display technology. In existing solutions, light sources are usually added to the optical path by combining common simulator technology with, for example, grids based on light-emitting diodes (LED). In this article, we introduce a new way to simulate glare sources on a common driving simulator back-projection screen using an additional projector and an additional reflective screen. In a first attempt, a concept with retroreflective sheets is proposed, and the requirements and current limitations of this setup are shown. Further development of the concept leads to an attempt with holographic diffusers. With an experimental setup based on the second concept, we aim to assess its feasibility, evaluate current challenges, and outline future requirements. The results show that it is possible to simulate a static glare scenario with correct geometrical conditions and headlights with luminances of about 100 000 cd/m2. Current limitations are an unbalanced color efficiency, the size and cost of available diffusers, and the black-level values and in-picture contrast of the used projector that cause an outshining of the environmental simulation.

Types, Purposes And Simulation Of Contributions In Vocational Training In Health: Narrative Review

Objective: To identify the types, purposes and the contributions of simulation in training in health. Method: This is a narrative review of the literature in its construction were used studies surveyed in databases Latin American and Caribbean Health Sciences (LILACS) and Scopus, and other data sources. Results: The types of simulations and simulators are characterized by the degree of organization of landscape and simulator technology: low, medium and high fidelity. These degrees of fidelity enable the development of skills and abilities in students in the context of health education. Conclusion: Considering the scope and possibilities of its use, the simulation can be a positive tool in health education process. Descriptors: Education. Simulation. Health. Education. Formative feedback.