scholarly journals A Preliminary Experimental Study on the Workers’ Workload Assessment to Design Industrial Products and Processes

2021 ◽  
Vol 11 (24) ◽  
pp. 12066
Author(s):  
Agnese Brunzini ◽  
Margherita Peruzzini ◽  
Fabio Grandi ◽  
Riccardo Karim Khamaisi ◽  
Marcello Pellicciari
Keyword(s):  
Experimental Study ◽  
European Commission ◽  
Wearable Devices ◽  
Assessment Method ◽  
The Novel ◽  
Industrial Products ◽  
Self Assessment ◽  
Human Centered Design ◽  
Non Invasive ◽  
Interactive Experience

The human-centered design (HCD) approach places humans at the center of design in order to improve both products and processes, and to give users an effective, efficient and satisfying interactive experience. In industrial design and engineering, HCD is very useful in helping to achieve the novel Industry 5.0 concept, based on improving workers’ wellbeing by providing prosperity beyond jobs and growth, while respecting the production limits of the planet as recently promoted by the European Commission. In this context, the paper proposes an ergonomic assessment method based on the analysis of the workers’ workload to support the design of industrial products and processes. This allows the simultaneous analysis of the physical and cognitive workload of operators while performing their tasks during their shift. The method uses a minimum set of non-invasive wearable devices to monitor human activity and physiological parameters, in addition to questionnaires for subjective self-assessment. The method has been preliminarily tested on a real industrial case in order to demonstrate how it can help companies to support the design of optimized products and processes promoting the workers’ wellbeing.

Experimental study of thermohydraulic characteristics and irreversibility analysis of novel axial corrugated tube with spring tape inserts

2020 ◽  
Vol 92 (3) ◽  
pp. 30901
Author(s):  
Suvanjan Bhattacharyya ◽  
Debraj Sarkar ◽  
Ulavathi Shettar Mahabaleshwar ◽  
Manoj K. Soni ◽  
M. Mohanraj
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Thermal Performance ◽  
Working Fluid ◽  
The Novel ◽  
Heat Exchanger Tube ◽  
Heat Transfer Augmentation ◽  
Corrugated Tube ◽  
The Impact ◽  
Exchanger Tube

The current study experimentally investigates the heat transfer augmentation on the novel axial corrugated heat exchanger tube in which the spring tape is introduced. Air (Pr = 0.707) is used as a working fluid. In order to augment the thermohydraulic performance, a corrugated tube with inserts is offered. The experimental study is further extended by varying the important parameters like spring ratio (y = 1.5, 2.0, 2.5) and Reynolds number (Re = 10 000–52 000). The angular pitch between the two neighboring corrugations and the angle of the corrugation is kept constant through the experiments at β = 1200 and α = 600 respectively, while two different corrugations heights (h) are analyzed. While increasing the corrugation height and decreasing the spring ratio, the impact of the swirling effect improves the thermal performance of the system. The maximum thermal performance is obtained when the corrugation height is h = 0.2 and spring ratio y = 1.5. Eventually, correlations for predicting friction factor (f) and Nusselt number (Nu) are developed.

Recommendations for Test Lab Regarding Transition to New Requirements GOST ISO/IEC 17025–2019

2020 ◽  
Vol 86 (2) ◽  
pp. 69-78
Author(s):  
S. N. Gusarova ◽  
Yu. M. Erokhina ◽  
D. I. Kramok ◽  
E. I. Khunuzidi
Keyword(s):  
Comparative Analysis ◽  
Russian Federation ◽  
Transition Period ◽  
Process Approach ◽  
National Standard ◽  
The Novel ◽  
Self Assessment ◽  
Testing Laboratories ◽  
The Russian Federation ◽  
Practical Level

Since September 1, 2019, GOST ISO/IEC 17025–2019 has been enacted as a national standard in the Russian Federation. The novel standard imposes a number of fundamentally new requirements for testing laboratories (hereinafter referred to as the IL or laboratory), and also supplements and specifies the requirements previously regulated by GOST ISO/IEC 17025–2009. In this regard, in order to transfer laboratories to the new requirements, the FSA issued an order in August 2019 listing the mandatory activities that IL must fulfill to bring their activities in line with the new requirements. However, a transition period desired for matching these requirements is absent on a practical level for a number of the laboratories. The purpose of the article is to facilitate a gentle, efficient and pain-free move from the requirements of GOST ISO/IEC 17025–2009 to the new requirements of GOST ISO/IEC 17025–2019, including compliance with new changes in accreditation criteria. We carried out a comparative analysis of the requirements of the new and previous versions of the standard and marked each new and significant item to which the laboratory should pay attention first of all. The new standard focuses on the application of the process approach, risk and opportunity management, as well as on implementation of the policy of impartiality, independence, minimization of competitive interests and confidentiality. The article describes the planning, implementation and monitoring of each event or phase of the transition of testing laboratories to new requirements. Moreover, the recommendations on the structure of the «Quality Manual» and self-assessment on the compliance of IL activities and QMS with the new requirements, including the use of statistical methods for substantiation of the correctness of the assessment are given as an example of the implementation of IL capabilities.

scholarly journals A [68Ga]Ga-DOTANOC PET/CT Radiomic Model for Non-Invasive Prediction of Tumour Grade in Pancreatic Neuroendocrine Tumours

Diagnostics ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 870
Author(s):  
Alessandro Bevilacqua ◽  
Diletta Calabrò ◽  
Silvia Malavasi ◽  
Claudio Ricci ◽  
Riccardo Casadei ◽  
...  
Keyword(s):  
Neuroendocrine Tumour ◽  
Area Under The Curve ◽  
Tumour Volume ◽  
Assessment Method ◽  
Second Order ◽  
Tumour Grade ◽  
Non Invasive ◽  
Pet Ct ◽  
Median Test ◽  
Fdg Pet Ct

Predicting grade 1 (G1) and 2 (G2) primary pancreatic neuroendocrine tumour (panNET) is crucial to foresee panNET clinical behaviour. Fifty-one patients with G1-G2 primary panNET demonstrated by pre-surgical [68Ga]Ga-DOTANOC PET/CT and diagnostic conventional imaging were grouped according to the tumour grade assessment method: histology on the whole excised primary lesion (HS) or biopsy (BS). First-order and second-order radiomic features (RFs) were computed from SUV maps for the whole tumour volume on HS. The RFs showing the lowest p-values and the highest area under the curve (AUC) were selected. Three radiomic models were assessed: A (trained on HS, validated on BS), B (trained on BS, validated on HS), and C (using the cross-validation on the whole dataset). The second-order normalized homogeneity and entropy was the most effective RFs couple predicting G2 and G1. The best performance was achieved by model A (test AUC = 0.90, sensitivity = 0.88, specificity = 0.89), followed by model C (median test AUC = 0.87, sensitivity = 0.83, specificity = 0.82). Model B performed worse. Using HS to train a radiomic model leads to the best prediction, although a “hybrid” (HS+BS) population performs better than biopsy-only. The non-invasive prediction of panNET grading may be especially useful in lesions not amenable to biopsy while [68Ga]Ga-DOTANOC heterogeneity might recommend FDG PET/CT.

scholarly journals Recent Advances in Wearable Devices for Non-Invasive Sensing

2021 ◽  
Vol 11 (3) ◽  
pp. 1235
Author(s):  
Su Min Yun ◽  
Moohyun Kim ◽  
Yong Won Kwon ◽  
Hyobeom Kim ◽  
Mi Jung Kim ◽  
...  
Keyword(s):  
Health Monitoring ◽  
Data Transmission ◽  
Wearable Sensors ◽  
Wearable Devices ◽  
Wireless Power ◽  
Non Invasive ◽  
Sensing Systems ◽  
Recent Advances ◽  
Wearable Systems ◽  
Precise Diagnosis

The development of wearable sensors is aimed at enabling continuous real-time health monitoring, which leads to timely and precise diagnosis anytime and anywhere. Unlike conventional wearable sensors that are somewhat bulky, rigid, and planar, research for next-generation wearable sensors has been focused on establishing fully-wearable systems. To attain such excellent wearability while providing accurate and reliable measurements, fabrication strategies should include (1) proper choices of materials and structural designs, (2) constructing efficient wireless power and data transmission systems, and (3) developing highly-integrated sensing systems. Herein, we discuss recent advances in wearable devices for non-invasive sensing, with focuses on materials design, nano/microfabrication, sensors, wireless technologies, and the integration of those.

Understanding the Need for a Non-invasive Wearable Real-time Database Device for Diabetic Patients

2018 ◽  
Vol 20 (2) ◽  
pp. 190-196 ◽  
Author(s):  
Elmer Jeto Gomes Ataide ◽  
Rajesh Kumar Sinha ◽  
G. Arun Maiya
Keyword(s):  
Health Care ◽  
Real Time ◽  
Medical Records ◽  
Wearable Devices ◽  
Care Process ◽  
Diabetic Patients ◽  
Quality Health Care ◽  
Non Invasive ◽  
Quality Health ◽  
Real Time Database

Diabetes occurs when the pancreas in the human body does not secrete sufficient insulin. It is a disease that is growing rapidly and affecting many lives. Hence, it needs constant monitoring. Wearable devices are those devices that are present on your person at all times. If the monitoring of this disease could be paired with wearable devices along with enabling real-time documentation in the patients’ medical records, it would benefit both the caregivers and the patients by saving time, money, effort and the amount of work put in by both during the health care process, hence, aiding in the delivery of quality health care. This article deals with identifying the existing wearable devices in detecting diabetes or risk of diabetes non-invasively and further scope of research in the respective area.

Evaluation of Physical and Psychosocial Well-Being of Personnel: Employees’ Self-Feeling and Presenteeism at Work

2021 ◽  
Vol 10 (4) ◽  
pp. 14-19
Author(s):  
M. Frelih ◽  
A. Fedorova
Keyword(s):  
Empirical Data ◽  
Negative Impact ◽  
Well Being ◽  
Assessment Method ◽  
The Self ◽  
Self Assessment ◽  
Metallurgical Enterprise ◽  
Digital Service ◽  
Depth Study ◽  
The Impact

The article is devoted to the study of factors that have a negative impact on the well-being of employees in the workplace. Special attention is paid to the problem of presenteeism on the example of a large metallurgical enterprise. A review of foreign and domestic publications allows concluding that until now specialists do not have reliable and valid tools for studying the presenteeism phenomenon in organizations. The purpose of the research presented in the paper is to examine influence of the factors of the intra-organizational environment on the personnel well-being and assess the level of presenteeism at the enterprise. Empirical data were obtained by conducting a sociological survey of various categories of workers, as well as assessing the impact of presenteeism on the economic indicators of the studied enterprise. For the subsequent in-depth study of health problems in the workplace, the authors have developed a research tool based on the use of a digital service, which allows monitoring the self-feeling of employees by the self-assessment method, which determines the level of physical and psychosocial well-being of staff.

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