Filters
total: 4820
filtered: 4019
-
Catalog
Chosen catalog filters
displaying 1000 best results Help
Search results for: molecular dynamics simulation
-
Modelling and simulation of GPU processing in the MERPSYS environment
PublicationIn this work, we evaluate an analytical GPU performance model based on Little's law, that expresses the kernel execution time in terms of latency bound, throughput bound, and achieved occupancy. We then combine it with the results of several research papers, introduce equations for data transfer time estimation, and finally incorporate it into the MERPSYS framework, which is a general-purpose simulator for parallel and distributed...
-
Simulation of water turbine integrated with electrical generator
Publication -
Simulation model for resource-constrained construction project
Publication -
Modeling and Simulation Method of Precision Grinding Processes
Publication -
Modeling and simulation of thin-walled beams and frames
PublicationPrzedstawiono koncepcję zastosowania superelementów węzłowych do modelowania połączeń słupów i rygli ram zbudowanych z prętów cienkościennych oraz stężeń konstrukcyjnych w belkach cienkościennych. Przeprowadzono analizę pracy ramy stalowej zbudowanej z prętów cienkościennych ze szczególnym uwzględnieniem problemu przekazywania bimomentu poprzez węzeł takiej ramy.
-
Stepwise development of distributed interactive simulation systems.
PublicationMetoda krokowa pozwala na budowanie wydajnych i skalowalnych systemów symu-lacji rozproszonej obiektów rzeczywistych jak np. pojazdy terenowe, samocho-dy i śmigłowce. Dzięki uwzględnianiu parametrów operacyjnych oraz parametrównarzędzi wizualizacyjnych możliwe jest znaczne ograniczenie liczby komunika-tów przesyłanych między obiektami.
-
Simulation of compensator of magnetic interference caused by an aircraft .
PublicationW badaniach geologicznych Ziemi wykorzystuje się m.in. metodę magnetometryczną. Metoda ta polega na pomiarze indukcji magnetycznej na badanym obszarze. Na podstawie rozkładu pola magnetycznego można zlokalizować różnego rodzaje złoża mineralne. Poszukiwania geologiczne wykonywane są na dużych obszarach z wykorzystaniem samolotu. Samolot w swoim otoczeniu zniekształca pole magnetyczne, dlatego też system pomiarowy musi zawierać...
-
Information management enhancement with simulation: case studies.
PublicationW rozdziale omówiono rolę symulacji w procesach zarządzania wiedzą i informacją, wskazując na jej znaczenie jako podstawowego narzędzia w tym obszarze.Przybliżono wybraną platformę symulacyjną opartą na systemie Visual SLAM.
-
Information management. Modelling, analysis and simulation persepctive.
PublicationW książce poruszono zagadnienia związane z zarządzaniem informacją w społączeństwie informacyjnym. Szczególny nacisk położono na metody wspomagania przepływów informacji w systemach złożonych.
-
Numerical simulation of energy buoy motion in wave
PublicationW pracy przedstawiono opis numerycznej metody modelowania ruchu boi energetycznej na fali. Wyniki obliczeń porównano z wynikami otrzymanymi z badań modelowych przeprowadzonych w basenie hydromechanicznym.
-
Identification and simulation of shells geometric initial imperfection
PublicationPrzedstawiono stochastyczną analizę stalowych zbiorników walcowych ze wstępnymi imperfekcjami geometrycznymi. Imperfekcje opisano za pomocą jednorodnych pól losowych.
-
Numerical Simulation of Duplex Steel Multipass Welding
Publication -
Construction of a simulation model of goods delivery in international road transportation taking into account the functioning efficiency of logistics supply chain
PublicationThe object of this study is the process of goods delivery in international road transport using various types of logistics chains. The problem being solved is due to the need to develop recommendations for exporters of goods to reformat or design new supply chains during wartime. The expediency of organizing foreign trade operations by the cargo owners' own forces or with the involvement of enterprises providing logistics consulting...
-
Long-term Hindcast Simulation of Currents, Sea Level, Water Temperature and Salinity in the Baltic Sea
PublicationThis dataset contains the results of numerical modelling of currents, sea level, water temperature and salinity over a period of 50 years (1958–2007) in the Baltic Sea. A long-term hindcast simulation was performed using a three-dimensional hydrodynamic model (PM3D) based on the Princeton Ocean Model (POM). The spatial resolution was 3 nautical miles, i.e. about 5.5 km. Currents, water temperature, and salinity were recorded...
-
The molecular function of kallikrein‐related peptidase 14 demonstrates a key modulatory role in advanced prostate cancer
Publication -
Excited state properties of a series of molecular photocatalysts investigated by time dependent density functional theory.
PublicationTime dependent density functional theory calculations are applied on a series of molecular photocatalysts of the type [(tbbpy)2M1(tpphz)M2X2]2+ (M1 = Ru, Os; M2 = Pd, Pt; X = Cl, I) in order to provide information concerning the photochemistry occurring upon excitation of the compounds in the visible region. To this aim, the energies, oscillator strengths and orbital characters of the singlet and triplet excited states are investigated....
-
Numerical simulation of temperature distribution of heat flow on reservoir tanks connected in a series
PublicationThe flow of temperature distribution through a medium in thermodynamic studies plays an important role in understanding physical phenomena in chemical science and petroleum engineering, while temperature distribution indicates the degree of reaction that must be undergone to obtain the final product. Therefore, this paper aims to present and apply the exponential matrix algorithm (EMA), differential transformation algorithm (DTA),...
-
Assessment of the Speed Management Impact on Road Traffic Safety on the Sections of Motorways and Expressways Using Simulation Methods
PublicationMethods used to evaluate the impact of Intelligent Transport System (ITS) services on road safety are usually based on expert assessments or statistical studies. However, commonly used methods are challenging to apply in the planning process of ITS services. This paper presents the methodology of research using surrogate safety measures calculated and calibrated with the use of simulation techniques and a driving simulator. This...
-
A Proposed Molecular Mechanism of High-Dose Vitamin D3 Supplementation in Prevention and Treatment of Preeclampsia
Publication -
A multiparameter simulation-driven analysis of ship turning trajectory concerning a required number of irregular wave realizations
PublicationIn times of progressive automation of the marine industry, accurate modeling of ship maneuvers is of utmost importance to all parties involved in maritime transportation. Despite the existence of modern collisionavoidance algorithms using 6DOF motion models to predict ship trajectories in waves, the impact of stochastic realization of irregular waves is usually neglected and remains under-investigated. Therefore, herein, this phenomenon...
-
Capturing nonexponential dynamics in the presence of two decay channels
Publication -
Dynamics of development of the largest cities - Evidence from Poland
Publication -
On the Dynamics of an Enhanced Coaxial Inertial Exciter for Vibratory Machines
Publication -
Influence of magnetic interaction on lattice dynamics of FeBO 3
Publication -
On energy-conserving algorithms in the context of rigid body dynamics.
PublicationPraca dotyczy dynamiki ciała sztywnego. Opracowanie teoretyczne wsparte jest przykładami numerycznymi. Głównym celem artykułu jest opracowanie i analiza algorytmu zachowującego energię, który umożliwia całkowanie równań ruchu ciała sztywnego sformułowanego z uwzględnieniem grupy obrotów SO(3) w definicji jego przestrzeni konfiguracyjnej.
-
Recognition Dynamics of Cancer Mutations on the ERp57-Tapasin Interface
Publication -
A Database Schema for the Analysis of Global Dynamics of Multiparameter Systems
Publication -
Dynamics Conscious Approach to Tribometer Design and Tribo-testing
PublicationIn the paper findings are discussed on the issue of dynamic characteristics of a tribometer as a factor influencing the result of the tribological experiment. An advanced approach to tribo-testing is attempted with integrated dynamic analysis of the tribometer and the sliding pair. The fundamental idea is explored of the tribometer being regarded as any machine in which friction is inflicted with all the resulting consequences...
-
mechanical engineering education via projects in multibody dynamics
PublicationPraca prezentuje rozważania nad wykorzystaniem interdyscyplinarnych projektów bazujących na zasadach dynamiki układów wieloczłonowych, traktowanych tu jako rozwinięcie kursu klasycznej mechaniki. Celem dydaktycznym jest zebranie w jednym procesie dydaktycznym takich aspektów jak: możliwość wykorzystania poznanych teoretycznie równań do modelowania i analizy znanego mu obiektu rzeczywistego; umożliwienie formułowania i testowania...
-
Dynamics of ginsenoside biosynthesis in suspension culture of Panax quinquefolium
Publication -
Discrepancies of energy values in dynamics of three intersecting plates
PublicationW pracy analizuje się lot konstrukcji powłokowej złożonej z trzech przecinających się powłok. Obciążeniem jest przestrzenny układ sił o zadanym trójkątnym przebiegu w czasie. Po ustaniu obciążenia powłoka doświadcza swobodnego lotu. Celem pracy jest dyskusja różnic wartości energii całkowitej układu w locie swobodnym jakie znane są w literaturze przedmiotu. W pracy przedstawiono także przykład weryfikujący zastosowane algorytmy...
-
Investigations on the the dynamics of motor vehicle driving in nighttime conditions
PublicationThe article describes investigations on vehicle driving in nighttime conditions
-
Molecular Classification of Low-Grade Diffuse Gliomas
Publication -
Molecular Modeling of the Neurohypophyseal Receptor/Atosiban Complexes
Publication -
Multigap superconducting state in molecular metallic hydrogen
Publication -
MOLECULAR SIMULATIONS OF NEOCARZINOSTATIN CHROMOPHORE RELEASE MECHANISM
Publication -
Professor Edward Borowski and molecular aspects of chemotherapy.
PublicationPrzedstawiono sylwetkę naukową i krótkie podsumowanie najważniejszych osiągnięć badawczych profesora Edwarda Borowskiego. Profesor Borowski jest autorem lub współautorem około 800 publikacji naukowych oraz 70 patentów, a jego prace były cytowane ponad 1100 razy. Do najważniejszych osiągnięć prof. Borowskiego i Jego zespołu naukowego należy zaliczyć: izolację i charakterystykę antybiotyków peptydowych, tetainy i edeiny oraz antybiotyków...
-
Coherent electron transport in hydrocarbon molecular devices
Publication -
Hubbard operators approach to the transport in molecular junctions
Publication -
Molecular basis of TRF proteins and their interactions with peptides
Publication -
Molecular Modelling of the Neurophysin II/Vasopressin Complex
Publication -
Comment on “Molecular Origin of Anticooperativity in Hydrophobic Association”
Publication -
A ferrocene-templated Pd-bearing molecular reactor
Publication -
Do positrons measure atomic and molecular diameters?
PublicationWe report on density functional calculations (DFT) of elastic integral scattering cross-sections for positron collisions with argon, krypton, nitrogen and methane. The long-range asymptotic polarization potential is described using higher-order terms going much beyond an induced dipole potential (−α / r 4) while the short-range interaction is modeled by two different forms of electron – positron correlation potential (Boroński-Nieminen...
-
Atomistic Surrogate-Based Optimization for Simulation-Driven Design of Computationally Expensive Microwave Circuits with Compact Footprints
PublicationA robust simulation-driven design methodology for computationally expensive microwave circuits with compact footprints has been presented. The general method introduced in this chapter is suitable for a wide class of N-port un-conventional microwave circuits constructed as a deviation from classic design solutions. Conventional electromagnetic (EM) simulation-driven design routines are generally prohibitive when applied to numerically...
-
Simulation of fluid structure interaction in a novel design of high pressure axial piston pump
PublicationA novel type of an axial, piston-driven high pressure hydraulic pump with variable capacity marks a significant improvement in the area of the hydraulic machinery design. Total discharge from hydrostatic forces eliminates a need for a servomechanism, thus simplifying operation, reducing weight and introducing the possibility of the pump displacement control by computer. PWK-type pumps, invented in the Gdansk University of Technology,...
-
A biochemical multi-species quality model of a drinking water distribution system for simulation and design
PublicationDrinking Water Distribution Systems (DWDSs) play a key role in sustainable development of modern society. They are classified as critical infrastructure systems. This imposes a large set of highly demanding requirements on the DWDS operation and requires dedicated algorithms for on-line monitoring and control to tackle related problems. Requirements on DWDS availability restrict the usability of the real plant in the design phase....
-
Co-simulation strategy of transient CFD and heat transfer in building thermal envelope based on calibrated heat transfer coefficients
PublicationThe paper presents a strategy to develop a fully transient numerical model of a heat transfer in building, using a transient CFD model of indoor air and a thermal envelope model, running in a co-simulation. The strategy relies on the utilization of RANS with a high-Re turbulence model and a wall function, which enables to use a coarse computational mesh limiting the computational time. Since wall functions give invalid heat transfer...
-
Mechanical-Level Hardware-In-The-Loop and Simulation in Validation Testing of Prototype Tower Crane Drives
PublicationIn this paper, the static and dynamic simulations, and mechanical-level Hardware-In-the-Loop (MHIL) laboratory testing methodology of prototype drive systems with energy-saving permanent-magnet electric motors, intended for use in modern construction cranes is proposed and described. This research was aimed at designing and constructing a new type of tower crane by Krupiński Cranes Company. The described research stage was necessary...
-
Evaluation of the influence of the opening pressure of a marine Diesel engine injector on the results of numerical simulation of the working cycle and their comparison with the results of the laboratory experiment
PublicationThe article presents the results of a numerical simulation of the working process carried out in a diesel engine. In the applied utility program DIESEL-RK, the laboratory engine Farymann Diesel type D10 was implemented. A selected inoperability of its functional fuel supply system - reduced opening pressure of the injector pinj - was introduced. The values of adequate diagnostic parameters were determined: working gas temperature...