Significance of Personnel Hygiene Practices in Pharmaceutical Industry

Personnel hygiene is very important in the pharmaceutical industry to prevent or reduce any kind of contamination which can affect the quality of medicinal products. When it comes to delivering highest quality standards of pharmaceutical products, key hygiene factors must to be upheld. Good personnel hygiene policies and practices are the foundation for successful product safety and purity. They are the backbone of a meaningful Good manufacturing Practices (GMP). Proper personnel training and sanitation are of prime importance. Personnel engaged in the manufacture, processing, packing, or holding of a drug product shall wear clean clothing appropriate for the duties they perform. All personnel should undergo medical check-up which may be a prerequisite for safe working condition. Personnel hygiene policies and procedures are to be followed by all personnel including management, visitors, production, sanitation and maintenance staff, for reducing the chance of product contamination. Personnel hygiene practices and procedures play a vital role in pharmaceutical industry in order to achieve a good quality and safe product.

Modelling and Simulation of Frequency Response on Input shaft/carrier of a Planetary Gear Train under the Influence of Vibration

The transmission of motion from one gear to the other in a planetary gear train usually result in unwanted conditions such as vibration due to poor gear assembly, high contact forces, high rotation speeds etc. The vibrating effect of the gear can result in higher or lower frequency response which may damage the gear or offer safe working condition. Using SOLIDWORKS 2018 version for the modelling, SimulationXpress was used to conduct frequency analysis on input shaft/carrier of a planetary gear train to understand its behaviour at different mode shapes during vibration. Results obtain from the input shaft/carrier frequency analysis showed natural frequency values of 1922.4Hz, 1922.8Hz, 2101Hz, 2183.1Hz and 2185.3Hz for mode shape 1-5. Geometry of the input shaft/carrier appeared differently at each mode number, resulting in frequency responses characterised by different modal shapes. This also led to gradual increase in the natural frequency of the input shaft/carrier at increasing mode no, consequently causing deflection on the mode shapes of the input shaft/carrier model. Hence, vibration should be reduced to the lowest limit of tolerance for minimum deflections and longevity of the input shaft/carrier and planetary gear components.

ASSESSMENT OF MENTAL WORKLOAD OF FLIGHT ATTENDANTS BASED ON FLIGHT DURATION: AN EFFORT TO PROVIDE SAFE WORKING CONDITION

Flight attendants play a crucial role in the service of the airline industry. The aim of this present study is to examine the mental workload of flight attendants, and it possible relation to the flight duration. Two hundred and one Indonesian flight attendants participate voluntarily in this study by filling out a mental workload questionnaire, the NASA-TLX questionnaire, in the end of their flight schedule. Results show that the mental workload of flight attendants regardless the flight duration is on a range of medium mental workload. Based on flight duration, the optimal mental workload is for 1–2 hours of flight. Implications of the result are discussed.

The incorporation of virtual ergonomics to improve the occupational safety condition in a factory

Proper manual material handling (MMH) is the important step leading to the occupational safety of the workers on the shop floor as well as the productivity improvement of the manufacturing process. The objectives of this study are the application of different risk assessment methods, the redesign of the workstation to reduce the occupational risk and the utilization of software package to validate the proposed interventions. As a result, an assembly line of a product is selected as the case study to validate the proposed agenda. Afterwards, four lifting assessment methods, i.e. NIOSH lift equation, Snook Psychophysical Table, OSU Lift guidelines and ACGIH/TLV, are used to assess the hazard risk in the assembly line. After these methods are performed, the results are introduced to recommend the newly designed working conditions, i.e. postures, movements and the barriers. To validate the improved design, new configurations are simulated by the virtual ergonomic program and the ergonomic analysis is performed. The important results, e.g. low back compression and percent of population capable, are calculated by the software to determine the appropriate values which are used as the guidelines for a safe working condition. Moreover, the manufacturing process is also simulated to improve that the ergonomic redesign of the shop floor environment and another consequence of the implementation leads to the significant increase of the productivity.

The Determination of Condition Met by Boom System Working in Safety Based on Multiple Load Case Analysis

Loads subjected by the boom system on the concrete pump are so complex, that fatigue cracks or fatigue fractures appear, which may lead to loss of property and casualty. However, when the concrete pump is functioning in safe condition, the damage of the boom system is reduced, thereby preventing the accidents. In order to select safe working conditions, a boom system of 37m concrete pump as research object should be adopted. The finite element analysis is carried out on the boom system based on MSC. Patran and Nastran, with regularly varying degrees, and changing trends of the maximum stresses subjected by booms with the change of degrees of booms, attained a safe condition of the boom system. Finally, taking the four kinds of typical foundation casting working conditions as example, the feasibility of using this condition to determine the safe working condition has been verified.