Impact of HPC and Automated CFD Simulation Processes on Virtual Product Development—A Case Study

High-performance computing (HPC) enables both academia and industry to accelerate simulation-driven product development processes by providing a massively parallel computing infrastructure. In particular, the automation of high-fidelity computational fluid dynamics (CFD) analyses aided by HPC systems can be beneficial since computing time decreases while the number of significant design iterations increases. However, no studies have quantified these effects from a product development point of view yet. This article evaluates the impact of HPC and automation on product development by studying a formula student racing team as a representative example of a small or medium-sized company. Over several seasons, we accompanied the team, and provided HPC infrastructure and methods to automate their CFD simulation processes. By comparing the team’s key performance indicators (KPIs) before and after the HPC implementation, we were able to quantify a significant increase in development efficiency in both qualitative and quantitative aspects. The major aerodynamic KPI increased up to 115%. Simultaneously, the number of expedient design iterations within one season increased by 600% while utilizing HPC. These results prove the substantial benefits of HPC and automation of numerical-intensive simulation processes for product development.

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Developing a Dashboard Software for the ICUs and Studying its Impact on Reducing the Ventilator-Associated Pneumonia

The Open Medical Informatics Journal ◽

10.2174/1874431101812010042 ◽

2018 ◽

Vol 12 (1) ◽

pp. 42-50

Author(s):

Mohammad Fathi ◽

Hamid Moghaddasi ◽

Azamossadat Hosseini ◽

Monir Ebrahimi Aghdam

Keyword(s):

User Satisfaction ◽

Pilot Project ◽

Point Of View ◽

P Value ◽

Ventilator Associated Pneumonia ◽

Healthcare Organizations ◽

Survey Tool ◽

Usability Assessment ◽

Before And After ◽

The Impact

Objective: Ventilator-Associated Pneumonia (VAP), a lung infection developing in patients on a ventilator in Intensive Care Units (ICU), is the second most common nosocomial infection and a leading cause of morbidity and mortality in ICUs. To reduce the incidence rate of VAP complication, many healthcare organizations have already developed certain strategies and guidelines. However, there are still high rates of VAP infections mainly due to: conflicting guidelines from different sources, implementing the guidelines at different times and conditions, different ICU caregivers at different shifts, and of course the human mistakes. Methods: The present study aimed to develop a dashboard to help reducing VAP incidences in ICUs. To achieve the objective of the research, first, the VAP prevention guidelines were compiled. The object-oriented analysis approach was adopted for designing of the dashboard software. To assess the impact of the developed dashboard on the reduction of VAP events, a pilot hospital was selected and a pilot project was prepared. For the dashboard usability assessment based on user satisfaction, a questionnaire was developed as the survey tool. Conclusion: The dashboard was developed and put into operation in a pilot ICU. The results from the t-test (with a probable error of 0.05 percent) indicated a meaningful difference between the number of VAP patients before and after the dashboard implementation with p-value ˂ 0.02. Also, the developed software was evaluated from a usability point of view based on user satisfaction, with health professionals and caregivers of the pilot ICU as the users of the software. The total score was equivalent to 95 percent, falling within the acceptable range of 75-100 percent.

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Identification and Analysis of Residual Stresses in the Axisymmetric Workpiece Existing before and after Machining

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.686.33 ◽

2016 ◽

Vol 686 ◽

pp. 33-38 ◽

Cited By ~ 1

Author(s):

Tadeusz Otko ◽

Wojciech Zębala

Keyword(s):

Point Of View ◽

Internal Stresses ◽

Entire Volume ◽

Shape Accuracy ◽

Workpiece Surface ◽

Plastic Processing ◽

Machining Allowance ◽

Before And After ◽

The Impact

Semi-manufactured parts dedicated for precise machining often have internal stresses which have remained after previous cutting and plastic processing. These stresses reside in a fixed state of balance over the entire volume of the workpiece. Removal of the machining allowance is associated with a change in the state of balance and deformation of the workpiece, which affect its dimensional and shape accuracy. The study, involving non-stress removal of precisely defined volume of the machining allowance and determination of the impact of this treatment on the deformation of the workpiece surface is presented. It is important from the point of view of dimensional tolerance of the axially symmetrical workpiece, finally processed by turning.

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ENVIRONMENTAL INDICATORS OF THE EFFICIENT FUNCTIONING OF AGROINDUSTRIAL TERRITORIES OF ADVANCED DEVELOPMENT

Ecology and water management ◽

10.31774/2658-7890-2020-4-22-40 ◽

2020 ◽

Author(s):

L. A. Voyevodina ◽

Keyword(s):

Water Resources ◽

Raw Materials ◽

Environmental Indicators ◽

Point Of View ◽

Transport Efficiency ◽

Economic Entity ◽

Before And After ◽

Four Blocks ◽

The Impact ◽

Advanced Development

Purpose: substantiation of environmental indicators of the efficiency of functioning of agro-industrial territory of advanced development (APTOR). Materials and methods. The methods of systematic, complex study, comparison, analysis and generalization of data were used. Results. As a result of the study, indicators that characterize the efficiency of APTOR functioning from an environmental point of view have been identified. The proposed indicators are harmonized with previously developed, widespread and recognized domestic and international methods. The main focus of the proposed indicators is aimed at assessing the effectiveness of management and operative activity. To characterize the efficiency of the APTOR activity based on the use of reclamation technologies, including reclamation parks, it is recommended to use, first of all, indicators indicating the efficiency of water resources use, among which the definition in dynamics (before and after the APTOR operation) “water consumption in the calculation per unit (in physical or value terms) of products (agricultural raw materials and products from them) produced at APTOR”. Due to the fact that the APTOR activities, which is planned to include many technological processes, can have a significant impact on other components of the environment, except for water resources, it is proposed to calculate indicators demonstrating the impact of APTOR activities on the state of air and soil in terms of energy efficiency, transport efficiency, pollution and waste management. On the basis of the indicators for the above recognized equal four blocks, an integrated indicator can be calculated. Conclusions. The use of the proposed indicators will make it possible to assess the effectiveness of the ecological activity of a new economic entity: an agro-industrial territory of advanced development.

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Geochemistry of Geological Hydrogen Storage in Sandstone Reservoirs

10.5194/egusphere-egu21-9894 ◽

2021 ◽

Author(s):

Aliakbar Hassanpouryouzband ◽

Katriona Edlmann ◽

Mark Wilkinson

Keyword(s):

Hydrogen Storage ◽

Clean Energy ◽

Pressure Change ◽

Point Of View ◽

Mineral Dissolution ◽

Geological Storage ◽

Before And After ◽

Geochemical Reactions ◽

Sandstone Reservoirs ◽

The Impact

<p>To enable a fast transition of the global energy sector towards operation with 100% renewable and clean energy technology, the geological storage of hydrogen in depleted gas fields or salt caverns has been considered as a strong candidate for the future energy storage required for limiting global warming to well below 2&#8201;&#176;C, as agreed under the Paris Agreement. As such, understanding the impact of injected hydrogen on the geochemical equilibrium in these storage reservoirs is critical. Here, using our bespoke high pressure/temperature batch reaction vessels we investigate the potential effects of hydrogen injection into 3 different sandstones reservoirs. &#160;These experiments were conducted at reservoir temperature and at different injection pressures from 1 to 20 MPa with salinities from 0 to 10 weight% over different time periods from 1 to 8 weeks.&#160; Our experiments reveal that there is no hydrogen-associated geochemical reaction for the selected sandstones. Although changing reservoir pressure slightly affected the mineral dissolution equilibria at ppm level for hydrogen injection scenarios, the fluctuations of mineral dissolution in water associated with pressure change have a negligible influence on the efficiency of geological hydrogen storage.&#160; Therefore, based on the analysis of water chemistry before and after the mentioned experiments, we demonstrate that from geochemical point of view geological storage of hydrogen in these sandstone reservoirs is safe and we don&#8217;t expect any hydrogen loss due to geochemical reactions.&#160;</p>

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Exchange Rate Pass-Through in Turkey before and after the Adoption of Inflation Targeting Regime

Financial Assets and Investing ◽

10.5817/fai2017-2-3 ◽

2017 ◽

Vol 8 (2) ◽

pp. 37-48 ◽

Cited By ~ 1

Author(s):

Özcan Karahan

Keyword(s):

Exchange Rate ◽

Inflation Targeting ◽

Single Equation ◽

Point Of View ◽

Turkish Economy ◽

Before And After ◽

The Exchange Rate ◽

Pass Through ◽

Exchange Rate Pass Through ◽

The Impact

The impact of exchange rate change on the domestic price level which is called as exchange rate pass through has long been of interest in international economics literature. Along with the application of inflation targeting regime widely, the focus of this interest has also evolved to examine the changes in degree and speed of exchange rate pass through under inflation targeting regime. Turkey, adopted Inflation Targeting (IT) as a monetary regime between 2001 and 2006 implicitly and then explicitly, exhibits which was a genuine experience to be analyzed in this respect. From this point of view, the goal of the study is to provide a time-series analysis of exchange rate pass-through for Turkish economy based on single equation Error Correction Model estimation using the monthly data under pre-IT period 1995-2000 and post-IT period 2006-2014. Thus, we try to clarify the effectiveness of inflation targeting regime as monetary policy on the exchange rate pass-through. The findings of the study indicate that the exchange rate pass-through decreased in the post-IT period compared to pre- IT period. Accordingly, it can be argued that the implication of inflation targeting regime reduced exchange rate pass through in Turkey.

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Characterization of Polyethylene Carrying Bags Before and After Isothermal Oxidative Aging in an Oven

Revista de Chimie ◽

10.37358/rc.20.3.8029 ◽

2001 ◽

Vol 71 (3) ◽

pp. 534-548

Author(s):

Malik Jehanzeb Khurram ◽

Musa Kaleem Baloch ◽

Leonardo C. Simon ◽

Wajid Rehman ◽

Cun-Yueguo Cun-Yueguo

Keyword(s):

Degradation Process ◽

Point Of View ◽

The Other ◽

Research Report ◽

Sem Images ◽

Oxidative Aging ◽

Before And After ◽

Ft Ir ◽

Index Value ◽

The Impact

Utility of polymeric material is a major contribution to the production of waste, particularly in Pakistan. An easy escape to it is the damping in the land which is not commendable for an environmental point of view. On the other hand, the aging of polymer is analogous to its burial conditions under the soil in the absence of light. Therefore, in this research report, two different brands of polyethylene carrying bags were investigated. One sample was obtained from Pakistan abbreviated as sample `Y` while the other from Canada abbreviated as `E`. In order to accelerate the degradation process and to observe the impact of aging in a shorter span of time, these samples were heated at an elevated temperature (80�C) in an oven for the period of 20 days. The samples were characterized before and after aging with an interval of 2 days by applying different techniques like FT-IR, SEM, DSC, and thermogravimetric analysis (TGA). Carbonyl peak at 1715 cm-1 was observed only in the case of sample `E` displaying carbonyl index value as 28.45 % after 20 days of aging. The SEM images before and after aging revealed that the degradation took place at preferential sites in case of sample `Y` and at numerous sites in case of sample `E`. The results of percent crystallinity obtained by DSC showed an increasing pattern with aging for both the samples and was high in case of sample `E.` The activation energy determined by using Flynn-Wall-Ozawa showed a decreasing pattern for both the samples with aging. It concluded that the thermal aging initiates the process of degradation which was then accelerated by heating in TGA oven. The order of reaction was slightly decreased after aging for both the samples and was found to be independent of the heating rate.

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The Impact of Intellectual Capital on Performance and Investment Attractiveness of Russian Companies

Journal of Applied Economic Research ◽

10.15826/vestnik.2021.20.1.005 ◽

2021 ◽

Vol 20 (1) ◽

pp. 110-132

Author(s):

H. S. M. Degles ◽

◽

N. R. Kelchevskaya ◽

Keyword(s):

Market Share ◽

Intellectual Capital ◽

High Performance ◽

Logistic Models ◽

Point Of View ◽

Investment Strategies ◽

Financial Indicators ◽

Main Hypothesis ◽

Structural Capital ◽

The Impact

Historically, the growth of intellectual capital has been associated with the trend of an increasing market capitalization of firms, but in practice the consequences of investing in companies that use intellectual capital are often not clear. Studying the relationship between intellectual capital and the ability of companies to generate a stable revenue as an indicator of investment attractiveness is becoming a relevant area of research. The purpose of this article is to study the influence of the intellectual capital of companies on their performance, and, consequently, on possible decisions of investors. The main hypothesis was an assumption about positive significant impact of the dynamic and static structural, relational and human capital of companies on the company's ability to generate revenue and retain a certain market share throughout the year, and, consequently, demonstrate its attractiveness to potential investors. Research method: regression analysis using logistic models, based on proposed models. The likelihood of the high performance of companies is determined under the influence of intellectual capital components, which would determine potential positive decisions made by investors using financial indicators, such as revenue and market share. In contrast to previous studies, we distinguish between static and dynamic elements of intellectual capital in the models to assess the likelihood of high performance. The hypotheses about the influence of the elements of intellectual capital on the company's revenue and their ability to retain market share, which together are indicators of performance reflecting the investment attractiveness of companies, were confirmed. The results show a moderate positive relationship between revenue, market share and quality metrics for static and dynamic intellectual capital. Elements of relational and structural capital play a key role in achieving performance. From the practical point of view, managers can rely on the results of the study when developing investment strategies and revealing the drivers of investment attractiveness growth in companies that intensively use intellectual capital.

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A Concept for Process-Oriented Interdisciplinary Tolerance Management Considering Production-Specific Deviations

Proceedings of the Design Society: International Conference on Engineering Design ◽

10.1017/dsi.2019.351 ◽

2019 ◽

Vol 1 (1) ◽

pp. 3441-3450 ◽

Cited By ~ 1

Author(s):

Bjoern Heling ◽

Thomas Oberleiter ◽

Andreas Rohrmoser ◽

Christoph Kiener ◽

Benjamin Schleich ◽

...

Keyword(s):

Product Development ◽

Computing Time ◽

Tolerance Analysis ◽

Product Development Process ◽

Geometric Product ◽

Wide Range ◽

Process Oriented ◽

Virtual Product Development ◽

Development And Validation ◽

Tolerance Management

AbstractTo meet rising customer requirements, increasingly complex products have to be virtually validated. To achieve this within the framework of virtual product development, a wide range of aspects has to be taken into account. In this context, tolerance analysis has established itself as a proven tool to evaluate the consequences of geometric part deviations on geometric product characteristics. Existing approaches, however, do not sufficiently take into account production-specific deviations, leading to time-consuming iterations during the product development process. Therefore, the focus of this contribution is on process-oriented interdisciplinary tolerance management that allows the integration of manufacturing simulations into the tolerance analysis. In contrast to the conventional approach, this novel methodology allows to avoid unnecessary iterations in the context of product development and validation. Following the presentation of the novel procedure, the application on a case study of an X- ray shutter is carried out, whereby surrogate models are integrated in order to reduce the computing time.

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BETWEEN REWARD AND SUFFERING: THE BANK WORKERS' VIEW OF THE FLEXIBILITY DISCOURSE

RAM Revista de Administração Mackenzie ◽

10.1590/1678-69712016/administracao.v17n4p13-37 ◽

2016 ◽

Vol 17 (4) ◽

pp. 15-38

Author(s):

REJANE PREVOT NASCIMENTO ◽

LÍGIA DO CARMO MARTINS DAMASCENO ◽

DIANA REBELLO NEVES

Keyword(s):

High Performance ◽

Management Practices ◽

Human Resources Management ◽

Point Of View ◽

Structured Interviews ◽

Content Analysis Method ◽

Standards Of Living ◽

Methodological Aspects ◽

The Impact ◽

Bank Employee

ABSTRACT Purpose: To analyze critically the impact of the flexibility discourse on banking industry practices, from the perspective of bank employees. Originality/gap/relevance/implications: This research is relevant once it deals with the issue of flexibility from the point of view of the employees, a matter that is still being debated in the academia. It also tries to close a gap in the subject, namely on whether employees identify the use of the flexibility discourse as being an instrument of control. Key methodological aspects: The study used a qualitative approach and semi-structured interviews for its data collection. This data was analyzed using the content analysis method. Summary of key results: The transformation of bank workers' profiles, in order to be more flexible, has exposed them to perverse management practices and, encouraged by corporate discourse, they have ended up becoming high performance slaves. The bank employee is now primarily seen as a salesperson. Even though they are dissatisfied with their working conditions, the interviewees readily submit themselves to the pressures of work to maintain their standards of living. Key considerations/conclusions: Flexible practices are so embedded in the day-to-day work of bank workers that they do not perceive them as being tools of control or domination over them. Finally, the conclusion reached is that the prevailing ideology in society enhances the discourse of human resources management, which, in turn makes the flexibility discourse operational, as pointed out by Sennet (2008) and Gaulejac (2007).

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Impact of Basalt Filler on Thermal and Mechanical Properties, as Well as Fire Hazard, of Silicone Rubber Composites, Including Ceramizable Composites

Materials ◽

10.3390/ma12152432 ◽

2019 ◽

Vol 12 (15) ◽

pp. 2432 ◽

Cited By ~ 2

Author(s):

Rybiński ◽

Syrek ◽

Żukowski ◽

Bradło ◽

Imiela ◽

...

Keyword(s):

Mechanical Properties ◽

Thermal Properties ◽

Silicone Rubber ◽

Fire Hazard ◽

Glass Frit ◽

Point Of View ◽

Zinc Borate ◽

Thermal And Mechanical Properties ◽

Before And After ◽

The Impact

This article illustrates the impact of basalt filler, both in the form of basalt flakes and basalt fibers, on thermal and mechanical properties, as well as on the fire hazard, of silicone rubber (SR) composites, including ceramizable composites. In addition to basalt filler, ceramizable composites contain mineral fillers in their composition in the form of silica and calcium carbonate, inorganic fluxes such as zinc borate and glass frit, and melamine cyanurate as a flame retardant. The obtained composites were analyzed from the point of view of their morphology, rheological and thermal properties, flammability, and mechanical properties before and after the ceramization process. The obtained research results indicate that the basalt filler has an unambiguous impact on the improvement of thermal properties and the reduction of flammability in the analyzed composites. The results of morphological analyses of ceramizable composites before and after the process of their ceramization indicate a definite impact of the basalt filler on the structure of the formed ceramic layer. An increase in its homogeneity exerts a direct impact on the improvement of its mechanical parameters.

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