DSRC – NEW PRINCIPLES AND IMPLEMENTATIONS IN ITS ROMANIA

Cities around the world are suffering from severe traffic congestion resulting in economic losses via delayed time, fuel consumption, traffic accidents, air pollution and traffic noise. An efficient wireless technology used in the road-to-vehicle radio communication can help reducing this negative effects and improve traffic parameters. Active DSRC is one of the most reliable road-to-vehicle communication methods available in the market today, since it has wide communication area and high-speed communication and is the most suitable for non-stop toll collection system, especially for multi-lane free-flow toll collection system, where vehicles can pass the toll gantry without reducing speed. The Active DSRC also supports other ITS applications related to road-to-vehicle communication applications that need high speed communication, and can improve public transportation, help to reduce air pollution, NOx and CO2, and road noise via a decline in traffic.ITS

PROPOSALS ON MAKING A STAND FOR TESTING AND DETERMINING THE WORKING PARAMETERS AND ACTIVE WEAR BODIES OF VERTICAL HARROWS

Harrows are machines running vertical milling operation that ensures soil loosening and shredding, chopping crop residues and manure incorporation into the soil organice.Organul work is the rotor blade driven by a transmission from the tractor PTO and can execute the entire surface tillage or strip

Enforcing Invariance Constraints in Medical Imaging to Detect Heart Fibrillation

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Identification of the Mineral Components and Metal Contaminants in Some Varieties of Bottled Beer

Several varieties of bottled beer were bought from Bucharest's markets and analyzed by ICP-OES.  Al, Be, Cd, Co, Ga, Ni, Pb and Se were not detected. The highest total concentrations were found for K, Mg, and Ca; however the samples contained medium Na total concentrations and low total Fe concentrations. The results suggest that beer is an important source of potassium and has nutritional value. No significant differences of the analyzed minerals were found between groups for the same beer variety or between beer varieties. Traces of potentially toxic metals such as Sr and Zn were also identified in the beer samples. The study of Sr and Zn in beverages should be further developed due to their potential chronic toxicity and because of their ability to accumulate in organs after constant prolonged beer consumption

Smart city cyber-physical security

Recently, the number of Internet users has increased enormously, this becoming the main way in which states and non-states actors increase their economic and diplomatic capacity through strategic and targeted manipulation with the help of web content that they transmit to citizens. Brilliant urban areas have a bleeding edge obligation to guarantee a protected and safe physical and advanced environment advancing durable and feasible metropolitan improvement for the prosperity of EU residents. S4AllCities incorporates progressed mechanical and authoritative arrangements in a market situated brought together Cyber – Physical Security Management structure, targeting raising the strength of urban communities' frameworks, administrations, ICT frameworks, IoT and cultivating insight and data sharing among city's security partners. A smart city is made up mainly of information and communication technologies (ICT) to develop, implement and promote the practice of sustainable development to address the growing challenges of urbanization. Mostly, ICT is a smart network of objects and machines that are connected and transmit data using both wireless technology and the cloud. IoT-based and cloud-based applications receive, analyze, and manage data in real time to make a good decision about quality of life. People use Smartphones, mobile devices, cars and smart homes for smart city ecosystems. Communities can improve energy distribution, streamline garbage collection, reduce traffic congestion, and even improve IoT air quality. This paper fills a gap in the literature dealing with attacks on critical infrastructure in smart cities and presents envisioned pilots for 3 cities in Europe, as well as experiments in follower cities, one of them being Buzau in Romania

Global disparities in surgeons’ workloads, academic engagement and rest periods: the on-calL shIft fOr geNEral SurgeonS (LIONESS) study

: The workload of general surgeons is multifaceted, encompassing not only surgical procedures but also a myriad of other responsibilities. From April to May 2023, we conducted a CHERRIES-compliant internet-based survey analyzing clinical practice, academic engagement, and post-on-call rest. The questionnaire featured six sections with 35 questions. Statistical analysis used Chi-square tests, ANOVA, and logistic regression (SPSS® v. 28). The survey received a total of 1.046 responses (65.4%). Over 78.0% of responders came from Europe, 65.1% came from a general surgery unit; 92.8% of European and 87.5% of North American respondents were involved in research, compared to 71.7% in Africa. Europe led in publishing research studies (6.6 ± 8.6 yearly). Teaching involvement was high in North America (100%) and Africa (91.7%). Surgeons reported an average of 6.7 ± 4.9 on-call shifts per month, with European and North American surgeons experiencing 6.5 ± 4.9 and 7.8 ± 4.1 on-calls monthly, respectively. African surgeons had the highest on-call frequency (8.7 ± 6.1). Post-on-call, only 35.1% of respondents received a day off. Europeans were most likely (40%) to have a day off, while African surgeons were least likely (6.7%). On the adjusted multivariable analysis HDI (Human Development Index) (aOR 1.993) hospital capacity > 400 beds (aOR 2.423), working in a specialty surgery unit (aOR 2.087), and making the on-call in-house (aOR 5.446), significantly predicted the likelihood of having a day off after an on-call shift. Our study revealed critical insights into the disparities in workload, access to research, and professional opportunities for surgeons across different continents, underscored by the HDI

Enforcing Invariance Constraints in Medical Imaging to Detect Heart Fibrillation

Stony Brook University Libraries. SBU Graduate School in Computer Science. Lawrence Martin (Dean of Graduate School), Radu Grosu – Thesis Advisor Associate Professor, Computer Science Department, Scott Smolka - Chairperson of Defense Professor, Computer Science Department, Emilia Entcheva Associate Professor, Biomedical Engineering Department, Stony Brook University

Estimation of the stress state of agricultural harrows with vertical axis rotor, using mathematical models with finite elements

In this paper we simulated through mathematical models the interaction between the agricultural harrow with vertical rotor (equipped with 4 boxes per rotor) and soil. Due to the large or even very large number of mathematical models that can be developed and can receive a solution using the finite element method, there are also many new possibilities to approach and improve some already developed models. The most important benefits of using finite element modeling are: increasing the quality of projects by checking the resistance, noticing dangerous vibration problems, remedying deficiencies reported in the testing of experimental models or even in operation. Normal optimization aims to reduce material consumption, its own vibration spectrum or other mechanical qualities.By using mathematical methods, a resistance check of the subassemblies of the working member (knife), connected to the action device, is obtained

Use of Energy Efficient Sensor Networks to Enhance Dynamic Data Gathering Systems: A Comparative Study between Bluetooth and ZigBee

As road traffic conditions worsen due to the constantly increasing number of cars, traffic management systems are struggling to provide a suitable environment, by gathering all the relevant information from the road network. However, in most cases these are obtained via traffic detectors placed near road junctions, thus providing no information on the conditions in between. A large-scale sensor network using detectors on the majority of vehicles would certainly be capable of providing useful data, but has two major impediments: the equipment installed on the vehicles should be cheap enough (assuming the willingness of private car owners to be a part of the network) and be capable of transferring the required amount of data in due time, as the vehicle passes by the road side unit that acts as interface with the traffic management system. These restrictions reduce the number of technologies that can be used. In this article a series of comprehensive tests have been performed to evaluate the Bluetooth and ZigBee protocols for this purpose from many points of view: handshake time, static and dynamic data transfer (in laboratory conditions and in real traffic conditions). An assessment of the environmental conditions (during tests and probable to be encountered in real conditions) was also provided

Estimation of the stress state of agricultural harrows with vertical axis rotor, using mathematical models with finite elements

In this paper we simulated through mathematical models the interaction between the agricultural harrow with vertical rotor (equipped with 4 boxes per rotor) and soil. Due to the large or even very large number of mathematical models that can be developed and can receive a solution using the finite element method, there are also many new possibilities to approach and improve some already developed models. The most important benefits of using finite element modeling are: increasing the quality of projects by checking the resistance, noticing dangerous vibration problems, remedying deficiencies reported in the testing of experimental models or even in operation. Normal optimization aims to reduce material consumption, its own vibration spectrum or other mechanical qualities.By using mathematical methods, a resistance check of the subassemblies of the working member (knife), connected to the action device, is obtained.</jats:p