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Gheorghe Roman

Abstract

A small collection of 1-aryl-3-arylamino-1-propanones having a phenolic moiety in their structure has been obtained by the replacement of the tertiary amino group in ketonic Mannich bases with (hetero)aromatic amines. The installment of the phenolic moiety took place either through the N-alkylation of 4-aminophenol with ketonic Mannich base hydrochlorides, or via amine exchange in ketonic Mannich bases derived from either 2′-hydroxyacetophenone or 4′-hydroxyacetophenone.

Open access

Gheorghe Durac

Abstract

In the dynamics of national and international regulations, an important threshold has been crossed - the recognition and granting of the fundamental right to environment. The applicable international documents formulate the idea of an individual right to a specific quality of the environment.

Certain documents consecrate yet another minimalistic perspective, according to which the right to environment is only infringed when the right to life itself is threatened, considering that only significant degradations of environmental quality may endanger the vital biological needs for the survival of mankind.

We must nevertheless stress that although there is no direct and unanimous recognition of a right to environment per se, an indirect acknowledgement of it can still be seen in the connection established between the fundamental human rights (the right to life, the right to health, the right to freedom, etc.) and the quality to the environmental factors, which underlines the fact that the compliance with the environmental dispositions is a prerequisite for insuring optimal life conditions.

We must also note that there has been a reversal of the environment - development relation. Thus, if in the beginning the environment could not be understood without development, it was later stipulated that sustainable development cannot exist without the existence of a quality environment

Open access

Gheorghe Udeanu

Abstract

Surprising the opponent in the main areas of strategic confrontation - information, political, economic, technological, ideological, psychological, espionage/counter-intelligence, military - was a priority objective of the general policy of the states, regardless of the analyzed historical age. In this framework, the most active and effective component of taking by surprise - misinformation- has always been in the attention of decision-makers in order to determine a distorted perception of reality, diminishing alertness and reducing the ability of an opponent to act or react [1]

Open access

Igor Mishin, Gheorghe Ghidirim and Gheorghe Zastavnitsky

Non-Operative Treatment for Gall-Stone Ileus - A Case Report

Gall-stone intestinal obstruction (GSO) is an unusual form of mechanical obstruction and a rare complication of cholelithiasis. The treatment options are controversial, usually the management is surgical but associated with significant morbidity and mortality. A spontaneous evacuation of the gall-stone that had induced GSO is even more exceptional, only few reports being published up to date. We report the case of an 81-year-old female patient presenting GSO admitted to our department due to abdominal pain and vomiting. Computed tomography revealed pneumobilia, distention of the ileum and a calcified mass in the small bowel lumen. The diagnosis of GSO was established, but since the gall-stone was <25 mm and severe cardiorespiratory co-morbidities conservative treatment was initiated and spontaneous evacuation of the gall-stone was obtained. Diagnostic and management modalities of GSO as well as literature reviews are reported.

Open access

Adrian Gheorghe

Abstract

The present study proposes a relativization of the concept of tolerance by the Ottoman in the early classical period. The research method leaves from the premise according to which the historiographical productions reveal the „taste“, expectations and thus the recipient public’s ideals and attitudes. The rise of Ottoman historiography coincides with the state’s proclamation as a great power. The study analyses the chronicles till the reign of Bayezid II and discusses only historical synthesis of this period. This is the time of searches and synthetization of ideological arguments and also a time in which different groups tried to impose themselves as great contributors. The quantitative and qualitative evaluation of the early ottoman sources confirms an aggressive line against the churches, but she does not impose herself as dominant.

Open access

Dorin Angelescu and Gheorghe Ion Gheorghe

Abstract

As a result of the scientific concerns of the Doctoral School of Mechanical Engineering and Mechatronics at Valahia Târgovişte University in the field of robotics dedicated to security and surveillance, the scientific work "Intelligent Cyber- Mixmechatronic Micro-System for Monitoring and Controlling the Security and Surveillance Robots" is in the testing and experimentation phase, within the doctoral (industrial) thesis "Studies, research and contributions regarding the realization of a smart mecatronic robot for security and surveillance applications". The scientific work results in a highly efficient cybermixmecatronic system, unique in Romania, which will be used to control the mechatronic security and surveillance robot, respectively the propulsion and control of its displacement. The robot is controlled through Artificial Intelligence, using the Internet of Things (IoT), which is why the Intelligent Motion Control system must be optimized both in terms of response speeds and energy. At the same time, due to the varied and possibly unstable conditions of the displacement field, the system must meet stringent criteria of reliability, resilience, weather, stability and redundant solutions for on-site repair of potential failures during missions. The cybermixmecatronic system designed to move the robot must carry it safely at the mission site so that it can then return it back to the Command and Control Center. In the paper will be presented the original solution, applicable with minimum of specific modifications (according to the chassis used), to any type of robot requiring both operator-controlled or autoguid control. Thus, a complex project will be realized combining into a unitary Mechatronics, Integronics, Cyber-Mixmechatronics, Artificial Intelligence and Information Technology.

Open access

A.C. Gheorghe

Abstract

The study aims for the development of a unique positioning system in the world of microscopy consisting of a transducer and software application. The technology used is based on image processing which creates a special hardware (transducer). The virtual labeling is the essential idea of this system. It synchronizes two essential things: the actual object and a set of exact coordinates to be retained in a database, with the ultimate goal of relocating them by bringing them into the visual field.

Open access

Dorin Angelescu and Gheorghe Ion Gheorghe

Abstract

Outcome of the scientific concerns from the Doctoral School of Mechanical Engineering and Mechatronics at Valahia University of Târgovişte in the field of unconventional measurements using non-contact laser technique, the scientific work “Intelligent 3D video-laser system for measuring distance and avoidance of obstruct obstacles integrable into robotic platforms” is a work in progress being in the experimental phase of single-channel testing. The system is designed for robotic platforms for special interventions in high-risk work environments, with the main goal of an active, real-time 3D spatial stereo interface for the operator who manages the robotic platform remotely. 3D imaging and real-time measurements of distances provide the operator of the robotic intervention platform with the ability to perform extremely precise maneuvers. The scientific work ultimately results in an intelligent integral system that can predict the emergence of an obstacle to the robotic platform movement, thus determining the distance in real time to it. The measuring distance is between 0 m - 40 m, with an accuracy of +/−0.5 cm being synchronized with the video system with a clear visual area from 0.05 m to infinity. The 3D video laser system can simultaneously shoot movie or single images of the obstacle, storing data in 3D, photo or video digital formats, both locally in non-volatile memory or externally thru any GPSR network to the operator and / or to a control center. In later development, the measurement system will be coupled to a GPS network for auto location of position and architected with a self-defense and offensive module mounted on the mobile robotic platform. Thus, this complex project combines in a unified knowledge of Mechatronics, Integronics, Cyber-Mix Mechatronics, Artificial Intelligence and Information Technology.

Open access

Dănuţ Stanciu and Gheorghe Ion Gheorghe

Abstract

There are several constructive variants of devices built for complex control of engagement on both sides aimed at controlling both internal and external shocks, all of which featuring a standard wheel compound. By the method of forced tooth engagement fitted between the standard wheel and the measuring wheel and using the spectral analysis, constructive errors of the gear wheels can be quickly determined, especially those consisting in shocks and the variation of the distance between the axes, errors that severely impact on operation. At the National Institute of Research and Development in Mechatronics and Measurement Technique was developed a device used to control shock values and the distance between the axis of the gearboxes (for four of the gearbox speeds) by means of forced engagement and complex harmonic analysis.