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Open access

Mhnd Farhan

Abstract

Owing to the increase in the internet traffic, any calculation that requires more than linear time would be considered unreasonably moderate for constant applications. One cure is to utilize numerous processors to build up associations in parallel and the other is to construct low cost, high speed, large capacity non-blocking switching architecture. In this paper, our focus is on developing parallel algorithms for routing which will ensure high-speed internet connectivity and at the same time making the system to be cost effective.

Open access

Muhanned Al-Rawi

Abstract

This paper focuses on designing and implementing of an inverter and particularly focuses on developing a low cost transformer-less voltage source conversion that has a higher efficiency as well as compact in size. The complete design consists of DC-DC converter and a DC-AC inverter. The converter is dependent on switched capacitor techniques and steps 12Vdc to 240Vdc. The inverter is dependent on a full-bridge configuration which produces a 240Vac output from 240Vdc. To achieve the improvement in inverter efficiency and a reduction in cost, the power transformer and magnetic components such as inductors are eliminated. In addition, inverter voltage control techniques such as pulse width modulation (PWM) and switching of MOSFETs are optimized through digital control using ATtiny26L microcontroller unit.

Open access

Robert Georgian Ripiceanu

Abstract

This article approaches the attitude of Z Generation concerning the promoting of the Romanian Army Institution in social media. This domain is a rigorous one, based on serosity and there are not a multitude of common values with this generation. Technology is a world-known aspect and the IGeneration is known as being born with new technological culture and they do not require to adjust to it. They prefer socializing in online, capture some meaningful general knowledge from their intercommunications. The Internet proposes various techniques of enticing youngsters to consume a lot of time online, on their smart devices.

Open access

Mohanad Abdulhamid and Waswa Wekesa

Abstract

Rain as a weather phenomenon is one of the things that greatly affects propagation of radio waves. Above 10 GHz, the attenuation brought about by the interaction of the propagating waves and the rain droplets becomes significant for both terrestrial radio links and satellite links. For this reason, rain attenuation models have been developed to aid in planning purposes for network implementation. The models use statistics to predict the attenuation that is caused by specific amount of rain and also the type of rain. This means that different regions will have different levels of attenuation due to the fact that they experience different types and amount of rain. A couple of models exist including the ITU-R, Moupfouma model, Crane attenuation model and other localized models depending on the geographical area that research data collection and extensive analysis has been conducted on and a comprehensive set of values and factors have been determined that can aid in estimation of attenuation due to rain. This paper seeks to provide a viable means by which a transmission engineer can be able to know the attenuation per kilometer due to the various models. This is achieved by designing a software calculator that provides the output of the attenuation per kilometer (dB/Km) while taking an input of rain rate for the different models available. The calculator is based on visual basic platform and works with forms.

Open access

Janka Kosecová and Kateřina Kašpárková

Abstract

Lessons learned process enables an organization to learn from its mistakes and successes. Thanks to this process an organization can reduce the risk of repeating mistakes and increase the chance that successes are repeated. This article aims to present the results of the research, especially, results of the process analysis of sharing lessons in the Czech Armed Forces. Based on the procedural deficiencies identification, benchmarking comparisons with lessons learned process of other organizations were carried out. The purpose of the benchmarking was to do away with the above mentioned deficiencies. To use benchmarking was beneficial from the point of view of a simplified model processing. The final part of the article introduces set of recommendation including the optimized model of the lessons learned process.

Open access

Vladimir Dragoş Tătaru and Mircea Bogdan Tătaru

Abstract

The present paper approaches in an original manner the dynamic analysis of a wheel which climbs on an inclined plane under the action of a horizontal force. The wheel rolls and slides in the same time. The two movements, rolling and sliding are considered to be independent of each other. Therefore we are dealing with a solid rigid body with two degrees of freedom. The difficulty of approaching the problem lies in the fact that in the differential equations describing the motion of the solid rigid body are also present the constraint forces and these are unknown. For this reason they must be eliminated from the differential equations of motion. The paper presents as well an original method of the constraint forces elimination.

Open access

Robert Stănciulescu and Elvira Beldiman

Abstract

In terms of forming and training the fighters, the modern armies have delineated well-defined instructive horizons, the development of the physical potential, characterized by the increase of the parameters of manifestation of the basic motor qualities as well as of the motor skills and applicative skills specific to carrying out the combat actions being very well harmonized with the development of intellectual, psychological, moral and specialist competencies. The maximization of the capacity of effort to meet the intensive and long-lasting demands as well as the improvement of the fighting skills specific to the modern combat area represent a permanent concern of the specialists in the field, who amplify the training process in an activity based on the most complex and efficient training techniques. The paper presents the techniques, methods and means for optimizing the training in the self-defense combat, in order to ensure a rich bag of scientific information necessary in accomplishing the objectives for the training of the fighters.

Open access

Florentina-Lavinia Matei

Abstract

This study aims to evaluate intercultural competence for military students before they go on an international mobility stage and after its completion, in order to see if intercultural competence is formed in real intercultural contexts. In the study, we addressed both theoretical and practical aspects of intercultural competence. As an instrument for data collection, an intercultural competency assessment questionnaire was used and, following its application, it was found that the high level of the “knowledge” component of intercultural competence determines a higher level of the other two elements - “attitudes” and “skills”.

Open access

Sorin Pînzariu and Costel-Dorel Mînea

Abstract

The functions of logistics management for military activities during the peacetime are determinant for the realistic forecasts, computation, estimates, the opportunity of good decisions, the reliability and logical achieving of suitable logistics support for specific military activities and military exercises. Uniformly application of these functions, lead to timely necessary corrections in order to achieve the desired goals of logistics support for military activities on peacetime. Also, through the use of logistics management functions, we evaluate the results by comparing it in a matrix what we intended to achieve and was the final accomplishment. According to this matrix we can conclude positive and negative elements that influence the logistic support.

Open access

Tibor Horváth

Abstract

During the military operations in Iraq and later in Afghanistan, the capability of force protection, of providing defence against improvised explosive devices (IEDs), and the organization of training courses aimed at enhancing the knowledge of personnel became increasingly important. Previous analyses clearly pointed out that the largest number of military and civil casualties were claimed by such devices.