A Stochastic Theory of the Diffusion of Traffic Flow

This paper presents a study of the diffusion of traffic flow and an observation by a moving observer, that is, a Doppler's effect. First we introduce a time process and a space process, and we show they are composed Poisson processes under the suitable assumptions. Secondly, we derive transformation formulae between these processes, interpreting velocity as the measure preserving transformation. Moreover, we analyze a Doppler's effect occurring in an observation by a moving observer, and finally we demonstrate, in a simple case that the time process is a homogeneous Poisson process

ULTRASOUND DOPPLEROGRAPHY IN THE DIAGNOSIS OF BRAIN CIRCULATION DISTURBANCES WITH PRIMARY HYPOTHYROIDISM

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Radar-Based Speed Measurement of Sport Projectiles

Tato bakalářská práce se zabývá návrhem a implementací aplikace, která z radarových dat extrahuje informace o rychlostech sportovních projektilů. Nejdříve zde jsou popsány radary, Dopplerův jev a především radar s kontinuální vlnou. Navazuje problematika zpracování radarového signálu, po které lze provést výpočet rychlosti. V další části je popsáno sbírání reálných dat a jejich vyhodnocení. V závěrečné části se nachází shrnutí celé práce, možné využití aplikace a také její možná rozšíření.This bachelor's thesis deals with a proposal and implementation of application, that extracts speed information of sport projectiles from radar data. Firstly, there is description of radar, Doppler's effect and especially continuous-wave radar. Then the bachelor’s thesis continues with signal processing issues, after which speed can be calculated.In next part there is a describtion of collecting real data and their evaluation. In the last part there is a summary of the thesis, eventual use of the application and it's possible extensions.

Analysis of Unmanned Four-Wheeled Bot with AI Evaluation Feedback Linearization Method

In this research paperwork, thereis the design and implementation of aBot with the ability to work in four directions of movement forward, backward, left, and right using aself-governingstability system. The bot's resultingbe in command of objective is to follow a path at the required speed, while its primary control purpose is to maintain equilibrium whenever the balance position is unstable owing to a change in the center of gravity. We report our surveys into the concertevaluation of a highly linear four-wheeledmatchingmachine using a PID regulator and a PI-PD regulator.  Here I have added advantages with the AI evaluation feedback linearization technique to detect and process with auto error time solutions. The key benefits include cogency in the actual application; switchdevice, enhanced performance, and capacity to overcome uncertainties. Simulated and experimental findings are used to compare and support a performance evaluation of the system. Numerous automatic systems for detecting traffic accidents have been developed by researchers. These techniques frequently make use of many applications such as smartphones, infrared sensors, and mobile applications.All of these techniques fall short when it comes to the instinctiverecognition of traffic accidents. The sifters used in smartphones may make it difficult to detect low-speed collisions. The suggested system does not specify the threshold distances at which an IR sensor will react. It is suggested to use a revolutionary method based on ultrasonic sensors.Using an ultrasonic sensor to identify accidents allows for the ability to do so not only in different street contexts but also in industrial settings, busy intersections, and weather circumstances like clouds, fog weather, rain, and heavy traffic

Physics. Module 4. Oscillations and Waves

Having joined in with Bologna process, Ukraine requires creating new books on physics (in English in particular). The book is developed for all forms of studying physics at the higher school Credit-based Modular System basis. "Physics. Module 4. Oscillations and Waves" presents the essential prin¬ciples of mechanical and electromagnetic oscillations and waves. It contains Study Units which include theoretical information, test questions, sample problems, laboratory works and individual home tasks. It is designed for students of engineering specialities.Having joined in with Bologna process, Ukraine requires creating new books on physics (in English in particular). The book is developed for all forms of studying physics at the higher school Credit-based Modular System basis. "Physics. Module 4. Oscillations and Waves" presents the essential prin¬ciples of mechanical and electromagnetic oscillations and waves. It contains Study Units which include theoretical information, test questions, sample problems, laboratory works and individual home tasks. It is designed for students of engineering specialities

Ultrasound case of solid pseudopapillary tumor of the pancreas

The clinical case of a rare pancreatic tumor in a 8-year-old child with hypoglycemia (decrease in blood sugar to 1,5 mmol/l) is presented. A sonographic picture of the solid pseudopapillary tumor of the pancreas is shown. The capability of ultrasound investigation in differential diagnostics of small-size neoplasms at early stages is pointed out. The role of the Doppler's effect with color mapping in visualization of the pancreatic vascular pattern normality and at the verification of pancreatic pathological mass is described. Histological examination which identifies the cellular structure forms solid and pseudopapillary images