Search results for: Potential energy surfaces

• Mechanochemical Energy Transduction during the Main Rotary Step in the Synthesis Cycle of F1-ATPase

  Publication

  • J. Czub
  • M. Wieczór
  • B. Prokopowicz
  • H. Grubmüller

  - JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Year 2017

  F1-ATPase is a highly efficient molecular motor that can synthesize ATP driven by a mechanical torque. Its ability to function reversibly in either direction requires tight mechanochemical coupling between the catalytic domain and the rotating central shaft, as well as temporal control of substrate binding and product release. Despite great efforts and significant progress, the molecular details of this synchronized and fine-tuned...

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• Potential of Silver Nanoparticles in Overcoming the Intrinsic Resistance of Pseudomonas aeruginosa to Secondary Metabolites from Carnivorous Plants

  Publication

  • M. Krychowiak-Maśnicka
  • M. Krauze-Baranowska
  • S. Godlewska
  • Z. Kaczyński
  • A. Bielicka-giełdoń
  • N. Grzegorczyk
  • M. Narajczyk
  • J. Frąckowiak
  • A. Krolicka

  - INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES - Year 2021

  Carnivorous plants are exemplary natural sources of secondary metabolites with biological activity. However, the therapeutic antimicrobial potential of these compounds is limited due to intrinsic resistance of selected bacterial pathogens, among which Pseudomonas aeruginosa represents an extreme example. The objective of the study was to overcome the intrinsic resistance of P. aeruginosa by combining silver nanoparticles (AgNPs)...

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• Pre-swirl energy saving device in marine application

  Publication

  • P. Król
  • K. Tesch

  - Journal of Physics : Conference Series - Year 2018

  This paper covers topics of energy saving device (ESD) with application to marine propulsors. The form of ESD, considered in this paper, consists of fixed lifting foils mounted in front of the screw propeller (the pre-swirl stator/guide vanes). An algorithm for designing propulsion systems, consisting of guide vanes and screw propeller, is presented. The proposed method relies on hybrid lifting line (guide vanes)-lifting surface...

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• Utility analysis and rating of energy storages in trolleybus power supply system

  Publication

  • M. Bartłomiejczyk
  • L. Jarzębowicz

  - Year 2020

  The article discusses two energy storage applications in power supply system of public electrified transport. The first application aims at reducing the peak power of the traction substation. The second application increases effectiveness of using solar power plant to cover partial power demand of traction supply system. These two applications were discussed and analyzed based on trolleybus supply system in Gdynia, where most measurements...

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• An Ultra-Low-Energy Analog Comparator for A/D Converters in CMOS Image Sensors

  Publication

  • W. Jendernalik

  - CIRCUITS SYSTEMS AND SIGNAL PROCESSING - Year 2017

  This paper proposes a new solution of an ultra-low-energy analog comparator, dedicated to slope analog-to-digital converters (ADC), particularly suited for CMOS image sensors (CISs) featuring a large number of ADCs. For massively parallel imaging arrays, this number may be as high as tens-hundreds of thousands ADCs. As each ADC includes an analog comparator, the number of these comparators in CIS is always high. Detailed analysis...

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• Central-force decomposition of spline-based modified embedded atom method potential

  Publication

  • S. Winczewski
  • J. Dziedzic
  • J. Rybicki

  - MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING - Year 2016

  Central-force decompositions are fundamental to the calculation of stress fields in atomic systems by means of Hardy stress. We derive expressions for a central-force decomposition of the spline-based modified embedded atom method (s-MEAM) potential. The expressions are subsequently simplified to a form that can be readily used in molecular-dynamics simulations, enabling the calculation of the spatial distribution of stress in...

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• Investigation of Performance and Energy Consumption of Tokenization Algorithms on Multi-core CPUs Under Power Capping

  Publication

  • O. Diakun
  • J. Dobrosolski
  • P. Czarnul

  - Year 2024

  In this paper we investigate performance-energy optimization of tokenizer algorithm training using power capping. We focus on parallel, multi-threaded implementations of Byte Pair Encoding (BPE), Unigram, WordPiece, and WordLevel run on two systems with different multi-core CPUs: Intel Xeon 6130 and desktop Intel i7-13700K. We analyze execution times and energy consumption for various numbers of threads and various power caps and...

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• Accurate and continuous adhesive fracture energy determination using an instrumented wedge test

  Publication

  • M. Budzik
  • J. Jumel
  • K. Imielińska
  • M. Shanahan

  - INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES - Year 2009

  The wedge test and the related double cantilever beam test are practical methods of assessing structural adhesive fracture energy. In the former, and to a lesser extent the latter, a recognised problem is the difficulty of following the length of the growing crack, required to calculate fracture energy with any accuracy. We present a novel method of measurement of crack length that has the advantages of being accurate and allowing...

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• Phytoremediation—From Environment Cleaning to Energy Generation—Current Status and Future Perspectives

  Publication

  • A. Grzegórska
  • P. Rybarczyk
  • A. Rogala
  • D. Zabrocki

  - ENERGIES - Year 2020

  :Phytoremediationis a technology based on the use of green plants to remove, relocate, deactivate, or destroy harmful environmental pollutants such as heavy metals, radionuclides, hydrocarbons, and pharmaceuticals. Under the general term of phytoremediation, several processes with distinctively different mechanisms of action are hidden. In this paper, the most popular modes of phytoremediation are described and discussed. A broad...

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• [Soft Skills] Decentralized energy systems. Social aspects of energy production and use (2023/2024)

  e-Learning Courses

  • M. Jaskólski
  • A. Augusiak

• [Soft Skills] Decentralized energy systems. Social aspects of energy production and use [2022/23]

  e-Learning Courses

  • M. Galik
  • M. Jaskólski
  • A. Augusiak

  {mlang pl} Dyscyplina: soft skills Zajęcia obowiązkowe dla doktorantów II roku,  Prowadzący:  dr inż. Andrzej Augusiak, doc. PG Liczba godzin: 10 Forma zajęć:  {mlang} {mlang en} Discipline: soft skills Obligatory course for 2nd-year PhD students Academic teacher:  dr inż. Andrzej Augusiak, doc. PG Total hours of training: 10 teaching hours Course type:  {mlang}

• Cleaner energy for sustainable future using hybrid photovoltaics-thermoelectric generators system under non-static conditions using machine learning based control technique

  Publication

  • A. Mirza
  • P. Szczepankowski
  • J. Łuszcz

  - Sustainable Energy Technologies and Assessments - Year 2022

  In addition to the load demand, the temperature difference between the hot and cold sides of the thermoelectric generator (TEG) module determines the output power for thermoelectric generator systems. Maximum power point tracking (MPPT) control is needed to track the optimal global power point as operating conditions change. The growing use of electricity and the decline in the use of fossil fuels have sparked interest in photovoltaic-TEG...

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• Synthesis and Biological Evaluation of Acridine/Acridone Analogs as Potential Anticancer Agents

  Publication

  • M. Gensicka-Kowalewska
  • M. Cichorek
  • A. Ronowska
  • M. Deptuła
  • I. Klejbor
  • K. Dzierzbicka

  - Medicinal Chemistry - Year 2019

  Acridine and acridone analogues were prepared by Ullmann condensation and then cyclization reaction. As a result of nucleophilic substitution reaction 1-nitro-9-phenoxyacridine or 1-chloro-4-nitro-9(10H)-acridone with the corresponding peptides, the planned acridine derivatives (10a-c, 12, 17-a-d, 19) have been obtained. The cytotoxic activity of the newly obtained analogs were evaluated against melanotic (Ma) and amelanotic (Ab)...

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• Antibacterial polyurethanes, modifed with cinnamaldehyde, as potential materials for fabrication of wound dressings

  Publication

  • J. Kucińska-Lipka
  • I. Carayon
  • A. Lewandowska
  • A. Terebieniec
  • A. Haryńska
  • H. Cieśliński

  - POLYMER BULLETIN - Year 2018

  The epidermis is a skin layer, which protects an organism from the different factors of external environment. Therefore, the fast and effective regeneration of epidermis is important. Potential materials used for epidermis regeneration may be polyurethane scaffolds in form of the thin permeable layers. One and main disadvantage of such polyurethane scaffolds are their lack of antibacterial and antifungal properties. The great proposition...

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• The biological role of prolyl oligopeptidase and the procognitive potential of its peptidic inhibitors from food proteins

  Publication

  • A. Taraszkiewicz
  • I. Sinkiewicz
  • A. Sommer
  • H. Staroszczyk

  - CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION - Year 2024

  Prolyl oligopeptidase (POP) is a conserved serine protease belonging to proline-specific peptidases. It has both enzymatic and non-enzymatic activity and is involved in numerous biological processes in the human body, playing a role in e.g., cellular growth and differentiation, inflammation, as well as the development of some neurodegenerative and neuropsychiatric disorders. This article describes the physiological and pathological...

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• Recurrent potential pulse technique for improvement of glucose sensing ability of 3D polypyrrole

  Publication

  • K. Cysewska
  • J. Karczewski
  • P. Jasiński

  - MEASUREMENT SCIENCE & TECHNOLOGY - Year 2017

  In this work, a new approach for using a 3D polypyrrole (PPy) conducting polymer as a sensing material for glucose detection is proposed. Polypyrrole is electrochemically polymerized on a platinum screen-printed electrode in an aqueous solution of lithium perchlorate and pyrrole. PPy exhibits a high electroactive surface area and high electrochemical stability, which results in it having excellent electrocatalytic properties. The...

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• Modular power converter with superconducting magnetic energy storage for electric power distribution system — Analysis and simulation

  Publication

  • M. Parchomiuk
  • R. Strzelecki
  • K. Zymmer
  • A. Domino

  - Year 2017

  This paper describes selected issues concerning realization of energy storage system (ESS) designed to operate in power distribution system. This paper presents a modular approach of 300 kVA power converter operating with superconducting magnetic energy storage (SMES), which gives high dynamics together with high power and suitable capability for instantaneous energy storage. Analysis and simulation studies of selected power converter...

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• Towards improved energy efficiency of future smart ships by application of advanced CFD simulations – case study

  Publication

  • K. Niklas

  - Year 2017

  The international trade plays crucial role in today’s globally developed world’s economy. Many people are unaware of the unimaginable volume of cargo being transported every year by oceans and seas. For most of the time invisible from land the shipping industry preserves its strong position of the most cost-efficient and environmental friendly mean of transport. However during last years the shipping industry is under great pressure...

• Journal of Energy Markets

  Journals

  ISSN: 1756-3607 , eISSN: 1756-3615

• Journal of Energy Science

  Journals

  ISSN: 1689-8338

• Food and Energy Security

  Journals

  ISSN: 2048-3694

• Advances in Energy Research

  Journals

  ISSN: 2287-6316 , eISSN: 2287-6324

• ACS Energy Letters

  Journals

  ISSN: 2380-8195

• Energy for Sustainable Development

  Journals

  ISSN: 0973-0826

• Journal of Photonics for Energy

  Journals

  ISSN: 1947-7988

• International Energy Journal

  Journals

  ISSN: 1513-718X

• Energy & Environmental Science

  Journals

  ISSN: 1754-5692 , eISSN: 1754-5706

• Geomechanics for Energy and the Environment

  Journals

  ISSN: 2352-3808

• Energy and Environment Focus

  Journals

  ISSN: 2326-3040 , eISSN: 2326-3059

• Energy Science & Engineering

  Journals

  ISSN: 2050-0505

• ENERGY EXPLORATION & EXPLOITATION

  Journals

  ISSN: 0144-5987 , eISSN: 2048-4054

• Energy Sustainability and Society

  Journals

  ISSN: 2192-0567

• Nuclear Materials and Energy

  Journals

  ISSN: 2352-1791

• OPEC Energy Review

  Journals

  ISSN: 1753-0229 , eISSN: 1753-0237

• MRS Energy & Sustainability

  Journals

  ISSN: 2329-2229 , eISSN: 2329-2237

• Materials Today Energy

  Journals

  ISSN: 2468-6069

• Water and Energy International

  Journals

  ISSN: 0972-057X

• Wind Energy Science

  Journals

  ISSN: 2366-7443 , eISSN: 2366-7451

• HIGH ENERGY CHEMISTRY

  Journals

  ISSN: 0018-1439 , eISSN: 1608-3148

• Energy Studies Review

  Journals

  ISSN: 0843-4379

• Energy Policy Studies

  Journals

  eISSN: 2545-0859

• Energy and Built Environment

  Journals

  eISSN: 2666-1233

• Water and Energy International

  Journals

  ISSN: 0974-4207 , eISSN: 0974-4711

• Energy, Ecology and Environment

  Journals

  ISSN: 2363-7692 , eISSN: 2363-8338

• Advances in Applied Energy

  Journals

  eISSN: 2666-7924

• Electrochemical Energy Reviews

  Journals

  ISSN: 2520-8489 , eISSN: 2520-8136

• RESOURCE AND ENERGY ECONOMICS

  Journals

  ISSN: 0928-7655 , eISSN: 1873-0221

• PROGRESS IN NUCLEAR ENERGY

  Journals

  ISSN: 0149-1970

• Energy & Environmental Materials

  Journals

  eISSN: 2575-0356

• Journal of Energy Systems

  Journals

  eISSN: 2602-2052