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46 results on '"Pugna, Adrian"'

3. Developing CO2 Detection Sensor Competitive Design Based on the Voice of the Household Consumer

Author

Potra, Sabina Alina, Cernescu, Lavinia Maria, Pugna, Adrian Pavel, Olenici, Carina, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Moldovan, Liviu, editor, and Gligor, Adrian, editor

Published
2024
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24. UNMANNED AERIAL VEHICLE (UAV) IN CONSTRUCTION MANAGEMENT: A LITERATURE REVIEW, APPLICATIONS AND CHALLENGES

Author

BUNGARDI, Bogdan Emil, IZVERCIAN, Monica, AGACHE GARBONI, Andreea Mihaela, and PUGNA, Adrian

Subjects
ComputerApplications_COMPUTERSINOTHERSYSTEMS, UAV, construction quality management
Abstract

Purpose – The aim of the article is to analyze the current directions of UAV application areas in the management of processes in construction, limitations and development opportunities, considering the fusion between academic publications and practical ones. Methodology/approach – This research puts forward a bibliographic synthesis to summarize the results of 20 research papers published in 2012-2020 and highlights the growing trend of using UAVs in the construction sector. Findings – The UAV is widely used in structural condition assessment, occupational health and safety, quantity survey and logistics activities. Cost and time efficiency are the primary benefits for using UAV in construction processes. Multi-rotor is the most common structure of UAV and a multitude of sensors can be attached to the UAV such as digital camera, thermal and infrared sensor. The control of the UAVs can be manual or a pre-programmed flight. Research limitations/implications – The research limitations are related to the methodological approach which consists of identifying the scientific papers based on keywords in academic databases. Originality/value – This paper outlines the classification of UAV applications in construction research and pleads the use of applications in construction quality control along the project implementation.

Published
2020
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34. The HWWP, a refined IVA-Kano model for designing new delightful products or services

Author

Potra, Sabina Alina, Izvercian, Monica, Pavel Pugna, Adrian, Dahlgaard, Jens Jörn, Potra, Sabina Alina, Izvercian, Monica, Pavel Pugna, Adrian, and Dahlgaard, Jens Jörn

Abstract

For the last decade, companies have tried to survive in a continuous competitive global marketplace with informed and demanding customers for first-time-right delightful products and services. The present paper tries to answer the simple corporate question How to design a new product for customer delight? by exploring the relevant design requirements managers need to take into consideration for corporate strategic decision-making. After examining the ongoing debate regarding the theory of attractive quality, the Health Weapon Wealth Prospect (HWWP) model is proposed for new product or service design, which relates Maslows hierarchy of needs with the Kano methodology, importance of customer wants and the customer satisfaction coefficient. The result represents a theoretical contribution to the further development of the Kano model and a starting point for future explanatory research.

Published
2017
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35. A greenhouse approach for value cultivation

Author

Dahlgaard, Jens Jörn, Pugna, Adrian, Potra, Sabina, Negrea, Romeo, Mocan, Marian, Dahlgaard, Jens Jörn, Pugna, Adrian, Potra, Sabina, Negrea, Romeo, and Mocan, Marian

Abstract

The present paper explores design requirements to take into consideration when designing and developing new products or services. The purpose of this article is to develop a strategic approach for analysing variations between potential customer needs in order better to understand what qualities should be further cultivated before product launch. This new approach is called A Greenhouse Approach for Value Cultivation. Case study data of a new web-based customisation service for a Romanian shoe manufacturing company has been re-analysed by using questionnaire data on 166 respondents perceptions on 14 attributes importance and value. A nonlinear regression model was developed and used to understand relations between importance and value. Such relations were used together with the Greenhouse Model to better understand the service attributes potential life cycles if selected for further cultivation. The Greenhouse Model envisages new perspectives of the evaluation of customer needs to support strategic decision-making regarding further value cultivation for profound affection (= customer delight). Even if there is a need for further tests the suggested Greenhouse Approach for Value Cultivation is regarded as a new and original contribution to the theory of attractive quality creation which deepens its position in the theory of attractive quality and transforms it into a practical management tool to support new product and service design.

Published
2016
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44. Considerations Regarding the Behavior to Cavitation Erosion of Two Carbon Alloy Stainless Steels Used in the Manufacturing of Hydraulic Equipment Drawers of Command, Adjustment and Distribution.

Author

GHERA, Cristian, BORDEASU, Ilare, SALCIANU, Laura, DUMA, Sebastian Titus, KATONA, Ștefan-Eusebiu, PUGNA, Adrian, MICU, Lavinia Madalina, and PASCU, Luoana Florentina

Subjects
METALS, METAL erosion, CAVITATION, HYDRODYNAMICS, STAINLESS steel, HYDRAULICS, EQUIPMENT & supplies, CAVITATION erosion
Abstract

The performances of hydraulically driven systems are dependent on the developed forces and execution speed. However, increasing the speed of execution makes that inside of the command, adjustment and distribution equipment, when using low viscosity fluids, to appear hidromatic phenoms of the cavitation type. Modern methods of flow modeling shows that the areas where pressure oscillations leads to the appearence of cavitation, are the flow slots created between the mobile elements (drawers) and body/seat of the hydraulic equipment. Although the literature contains more information about the behavior/cavitation resistance of materials of components that run within the range of cavitation, an investigation of their behavior to cavitation erosion is required. Filling the data with cavitation erosion elements is beneficial, since it occurs simultaneously with cavitation erosion and abrasive erosion, cumulative effects that can affect the performance and work accuracy of the equipment. Therefore, this paper contains the result of research and analysis of the behavior to vibratory erosion of two low alloy steels (16MnCr5 and 34CrNiMo6), in annealed condition, used in the manufacturing of mobile elements of hydraulic equipment. Qualitative assessment of resistance to cavitation is done by comparing the carbon steel alloy 41Cr4, standard in the cavitation laboratory of the Polytechnic University of Timisoara, for steels in this category. The comparison based on curves and cavitation erosion specific parameters show that the investigated steels have lower resistance to the standard, but can be improved by applying surface hardening technologies and increasing the mechanical properties of the surface exposed to cavitation. [ABSTRACT FROM AUTHOR]

Published
2015

45. CONSIDERATIONS REGARDING OF BASALTIC MATERIALS USAGE WITH MINERALIZERS INPUT IN MACHINE BUILDING.

Author

STEFANESCU, Werner, PUGNA, Adrian, and PLENICEANU, Aristica

Subjects
*TEMPERATURE, *MACHINERY, *MANUFACTURED products, *POWER (Mechanics), *MACHINERY industry, *TOOLS, *POWER transmission, *MANUFACTURING industries
Abstract

The present paper highlights the experimental results obtained for a series of basaltic samples elaborated through syntherization with mineralizing substances addition. The modification of the temperature and of content of mineralizers brings about the improvement of the physical-mechanical properties, with positive implications in the syntherizing technology in the elaboration of the basaltic parts used in machine building. [ABSTRACT FROM AUTHOR]

Published
2009

46. REGIONAL COMPETITIVENESS EVALUATION IN ROMANIA.

Author

Strauti, Gabriela Negru, Maistor, Sorin-Ioan, Mocan, Marian Liviu, and Pugna, Adrian Pavel

Subjects
*SOCIAL indicators, *ECONOMIC indicators, *ECONOMIC development, *REGIONAL economics
Abstract

The paper approach one of the key concept uses in economic and social analysis of the last decades: regional competitiveness. In this methodological approach are indentified series of social and economical indicators which are considered relevant in evaluation of regional competitiveness. The analysis was made for year 2009, gathering data for the eight development regions of Romania: North-West (N-W), Center (C), North-East (N-E), South-East (S-E), Bucharest- Ilfov (B-I), South (S), South-West (S-W) and West (W). [ABSTRACT FROM AUTHOR]

Published
2011

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