Emil-Ionuț Niță, Philip Coandă, Constantin-Daniel Comeagă, Mircea Udrea,
This paper wishes to provide an overview for active tremor compensations methods for laser medical instruments, considering the pure mechanical and the optical approaches.Moreover, the tremor problematics is approached, considering that in all its forms, tremor can have an impact in one's life.Of course, the main impact on tremor is underlined in microsurgery, where enhanced positioning and precision are needed in order to provide high quality medical act.An overview of the literature is presented, ...
Tópico(s): Optical Imaging and Spectroscopy Techniques
2021 - | International Journal of Mechatronics and Applied Mechanics
Philip Coandă, Mihai Avram, Victor Constantin,
Abstract Nowadays in industry there is a great and increasing demand in resource management, taking into consideration the ever-growing complexity of technical systems. The concept of maintenance is one the most important topics of product development today. As the factories and the industry evolves, the need of proper maintenance plays a major factor in cost and efficiency optimization. In this paper a state of the art of maintenance techniques is presented, predictive maintenance being one of ...
Tópico(s): Machine Fault Diagnosis Techniques
2020 - IOP Publishing | IOP Conference Series Materials Science and Engineering
Constantin Bănică, Justin Coandă,
Tópico(s): Homotopy and Cohomology in Algebraic Topology
1985 - Springer Science+Business Media | manuscripta mathematica
This paper contains first some definitions and classifications regarding the fluidic elements.The general current status is presented, nominating the main specific elements based on the Coanda effect developed specially in Romania.In particularly the development of an original bistable element using industrial compressed air at industrial pressure supply is presented.The function of this element is based on the controlled attachment of the main jet at a curved wall through the Coanda effect.The ...
Tópico(s): Fluid Dynamics and Turbulent Flows
2010 - National Institute for Aerospace Research “Elie Carafoli” - INCAS | INCAS BULLETIN
Maria Coandă, Carmen Limban, Constantin Drăghici, Anne-Marie Ciobanu, Georgiana Alexandra Grigore, Marcela Popa, Miruna S. Stan, Cristina Larion, Speranța Avram, Cătălina Mareş, M C Ciornei, Aura Dabu, Ariana Hudiță, Bianca Gălățeanu, Lucia Pintilie, Diana Camelia Nuță,
Growing resistance to antimicrobials, combined with pathogens that form biofilms, presents significant challenges in healthcare. Modifying current antimicrobial agents is an economical approach to developing novel molecules that could exhibit biological activity. Thus, five sulfanilamide Schiff bases were synthesized under microwave irradiation and characterized spectroscopically and in silico. They were evaluated for their antimicrobial and antibiofilm activities against both Gram-positive and ...
Tópico(s): Enzyme function and inhibition
2024 - Multidisciplinary Digital Publishing Institute | Pharmaceuticals
Emil-Ionuț Niță, Philip Coandă, Constantin-Daniel Comeagă, Mircea Udrea,
The current paper proposes an enhanced 4 DOF measurement platform designed to automatically determine the static and dynamic characteristics of electromagnetic and piezo actuators.High precision motor or laser instruments can be attached on the given platform, providing a high level of versatility for multiple applications.Further, the constructive and design parameters of the platform will be discussed in detail with some applications proposed.A control algorithm and a demo LabVIEW program is proposed ...
Tópico(s): Advanced Sensor and Control Systems
2021 - | International Journal of Mechatronics and Applied Mechanics
Emil-Ionuț Niță, Philip Coandă, Constantin-Daniel Comeagă, Mircea Udrea,
The current paper proposes an enhanced 4 DOF measurement platform designed to automatically determine the static and dynamic characteristics of electromagnetic and piezo actuators.High precision motor or laser instruments can be attached on the given platform, providing a high level of versatility for multiple applications.Further, the constructive and design parameters of the platform will be discussed in detail with some applications proposed.A control algorithm and a demo LabVIEW program is proposed ...
Tópico(s): Educational Robotics and Engineering
2022 - | International Journal of Mechatronics and Applied Mechanics
Philip Coandă, Mihai Avram, Victor Constantin, Bogdan Grămescu,
Development of urban areas has created a need for stable, reliable and cost-efficient indoor GPS systems based on regularly available technologies. Such systems already exist and are in use. This paper proposes such a system with an emphasis on ease of use, long-term reliability or maintenance free through network redundancy techniques as well as an open-source architecture. The proposed architecture uses a Bluetooth/Wi-Fi’s RSSI (Received Signal Strength Indicator) parameter as relative to multiple ...
Tópico(s): Energy Efficient Wireless Sensor Networks
2021 - Springer Nature | Lecture notes in mechanical engineering
Ionică Cîrciu, Constantin Rotaru,
The Coandă Effect, or better said, the deviation of fluid jets to stay attached to a convex surface is a complex gas-dynamic effect, named after the Romanian aviation engineer Henri Coandă and it was for the first time highlighted by him in 1910 during the take-off of one of his first planes, Coandă-1910, which was also the first jet plane to fly. During the short flight, Coandă was able to notice the near-fit alignment of the flue gas jets with the airplane fuselage. Later, both Coandă and other ...
Tópico(s): Aerospace Engineering and Applications
2019 - EDP Sciences | MATEC Web of Conferences
... sculpture classes of master RODIN where he met Constantin Brâncuşi.I would say that Coanda's most important and active quality was his ...
Tópico(s): Philosophy and History of Science
2010 - National Institute for Aerospace Research “Elie Carafoli” - INCAS | INCAS BULLETIN
Philip Coandă, Mihai Avram, Daniel Comeagă, Bogdan Grămescu, Victor Constantin, Emil Ionuț Niță,
Smart pneumatic systems represent a major part of overall actuation systems, close to electric and hydraulic systems as market share. Considering this, fault detection and maintenance represent a key point in the long-term reliability of pneumatic systems. In addition, proper resource management is needed to ensure long-term sustainability given the current global situation. This paper aims to review the main areas where smart pneumatic systems are used, highlight component failure modes, and identify ...
Tópico(s): Advanced Sensor and Control Systems
2022 - Springer Nature | Lecture notes in mechanical engineering
Ionică Cîrciu, Doru Luculescu, Vasile PRISACARIU, Eduard MIHAI, Constantin Rotaru,
... helicopters, with removal of its disadvantages through the Coandă Effect. This would significantly increase the flight performance. ... at obtaining a controlled lateral force due to Coandă flows through the tail boom, a force which ...
Tópico(s): Fluid dynamics and aerodynamics studies
2015 - Hindawi Publishing Corporation | Advances in Materials Science and Engineering
Radu-Alex. Răuţă, Hilde Heynen,
... near to Bucharest: it is now called ‘Henri Coandă’. The construction period given for each project referred ... 1959), pp. 44–53. As suggested by arh. Constantin Jugurică, arh. Sandu Culescu and arh. Nicolae Vlădescu ...
Tópico(s): Urbanization and City Planning
2009 - Taylor & Francis | The Journal of Architecture
Dumitru-Dorin Prunariu, Dan Antoniu, Constantin Olivotto, Corneliu Berbente, Octavian Thor Pleter,
... aviation pioneers Traian Vuia, Aurel Vlaicu, and Henri Coandă is better known, but many other less known ...
Tópico(s): Space exploration and regulation
2023 - Springer Nature (Netherlands) | History of mechanism and machine science/History of mechanism and machine sciense