The Medical Simulation Center at the Medical University of Białystok was created as part of a broader project. Throughout Poland there are 12 such centers, and each with a somewhat different concept. The common denominator is that they help medical, nursing, and obstetrics students test their knowledge and skills in practice. The Medical Simulation Center in Białystok boasts a sizeable set of simulation facilities, including an operating room, ambulance, emergency ward, labor ward, and nurse’s station. The technicians devise scenarios for students to enable them to practice reacting to specific cases. All the facilities are equipped with state-of-the-art audio-video equipment to record lessons for later review and analysis.
Prof. Daniel Wójcik from the Nencki Institute of Experimental Biology explains the principles of brain modelling
Simulation-based models standing in for the real world are unfettered by any biological, emotional, historical, logical, or practical limitations.
Dr. Takao Ishikawa from the University of Warsaw talks about why perhaps not all scientists should aim to become professors, and explains what we can learn from yeast proteins.
This article presents a sequential model of the heating-remelting-cooling of steel samples based on the finite element method (FEM) and the smoothed particle hydrodynamics (SPH). The numerical implementation of the developed solution was completed as part of the original DEFFEM 3D package, being developed for over ten years, and is a dedicated tool to aid physical simulations performed with modern Gleeble thermo-mechanical simulators. Using the developed DEFFEM 3D software to aid physical simulations allows the number of costly tests to be minimized, and additional process information to be obtained, e.g. achieved local cooling rates at any point in the sample tested volume, or characteristics of temperature changes. The study was complemented by examples of simulation and experimental test results, indicating that the adopted model assumptions were correct. The developed solution is the basis for the development of DEFFEM 3D software aimed at developing a comprehensive numerical model allows the simulation of deformation of steel in semi solid state.
The hulls of naval ships are exposed to forces and moments coming from internal and external sources. Usually, these are interactions that can be described mathematically by harmonic and polyharmonic functions. The shock of UNDEX type (underwater explosion) works completely differently and its time waveform is difficult to describe with mathematical functions as pressure vs. time. The paper presents a simplification of physical and mathematical models of 1-D kickoff pressure whose aim is performance the simulation of the external force of the detonation wave. The proposed models were verified and tuned on naval, sea trials. The main goals of the proposed models are to perform simulation calculations of the detonation pressure for different explosion charge weights from different distances of the UNDEX epicentre for the design process of machine foundation. The effects of pressure are transformed as impulses exposed on shock absorber mounted at light shock machine.
Antarctica is a land of surprises. How low are the lowest temperatures ever recorded there? Is there life at –50°C? Is there anywhere on the continent tourists can actually enjoy swimming?
We wszystkich fazach zagospodarowania złoża węgla brunatnego wymagane jest odpowiednie rozpoznanie jego kluczowych parametrów strukturalnych i jakościowych, tj. miąższość pokładu, wartość opałowa węgla, popielność, zawartość siarki. Od właściwego rozpoznania przestrzennej zmienności parametrów złoża zależy optymalne wykorzystanie jego zasobów jak i możliwość odpowiedniego planowania eksploatacji pod kątem utrzymania jakości strumienia surowca. Bazując na danych z rozpoznania geologicznego wykonywane są modele złoża. Do modelowania wykorzystywane są różne metody, wśród których popularne stają się metody geostatystyczne. Wybór metody zależy od celu modelowania. W artykule przedstawiono wielokryterialne analizy metod geostatystycznych używanych do modelowania złóż. Na podstawie obserwacji geologicznych złoża węgla brunatnego wykonano modele wartości opałowej węgla Q metodą krigingu zwyczajnego (OK) oraz metodą geostatystycznej symulacji warunkowej (SGSIM). Modele przeanalizowano pod kątem wierności odwzorowania cech danych źródłowych, tj. wartości średniej, wariancji oraz struktury. Modele porównano z modelem referencyjnym opartym na danych pozyskanych w procesie eksploatacji złoża. Obliczono miary odchyleń – średni błąd względny i absolutny błąd względny oraz współczynnik korelacji. Porównano modele pod względem ogólnych cech statystycznych oraz zmienności lokalnej. Na podstawie analiz sformułowano wnioski dotyczące przydatności metod do rozwiązywania różnych zadań z zakresu projektowania górniczego. Do szacowania wartości średniej parametrów złoża wystarczająco dokładne wyniki dostarcza kriging zwyczajny. Do zadań związanych z określeniem prawdopodobieństwa albo ryzyka przekroczenia krytycznych wartości parametrów złoża bardziej wiarygodnych wyników niż kriging dostarcza metoda symulacji. Modele wykonane tą metodą wiernie oddają strukturę danych źródłowych.
Optical coherence tomography (OCT) – a kind of optical counterpart of ultrasound imaging – is continually being improved as image contrast boosting techniques are developed.
Prof. Przemysław Perlikowski, a mechanical engineer, and his wife Asst. Prof. Renata Perlikowska, who studies opioid peptides used in medicine, discuss the challenges of research work and life.
Weather forecasting requires knowledge of the laws of atmospheric movement. Apart from classic fluid mechanics, we must consider the rotational motion of our planet, the differential heating of its surface through the absorption of solar radiation, as well as water evaporation and condensation processes.
Polish-Belgian relations are not just about economics or joint membership in European institutions. Rather, they are a story of centuries-old friendship between two nations that cherish freedom. This was the leitmotif of a conference held on the occasion of the 100th anniversary of the establishment of diplomatic relations between the two countries. The conference took place at the headquarters of the Belgian Ambassador in Poland on 11 April 2019, with Polish Senator Anna Maria Anders in attendance.
They are unfairly regarded as junk protein, but the truth is they have not been properly studied due to a lack of suitable tools. So how much do we really know about non-globular proteins?
We all face a wide array of different choices every day of our lives. Asst. Prof. Miłosz Kadziński explains how artificial intelligence could be used to help us make decisions.