Search results for: VOLTAGE FAILURE

• Impact of power electronic Var compensators installed in certain grid points on the voltage failure

  Publication

  • R. Kowalak
  • R. Zajczyk

  - Year 2012

  The article presents the test results of the various types of static compensators FACTS models in the power system. The basic case, which was analyzed, it was behavior of compensators which are installed in select points of the system during voltage failure. The article presents selected results of studies conducted as part of a work [2].

• Failure analysis of a high-speed induction machine driven by a SiC-inverter and operating on a common shaft with a high-speed generator

  Publication

  • Ł. Breńkacz
  • P. Bagiński
  • M. Adamowicz
  • S. Giziewski

  - Eksploatacja i Niezawodność - Maintenance and Reliability - Year 2022

  Due to ongoing research work, a prototype test rig for testing high-speed motors/generators has been developed. Its design is quite unique as the two high- speed machines share a single shaft with no support bearings between them. A very high maximum operating speed, up to 80,000 rpm, was required. Because of the need to minimise vibration during operation at very high rotational speeds, rolling bearings were used. To eliminate...

  Full text available to download

• Resonant Conditions in a Node with an SVC Compensator

  Publication

  • R. Kowalak

  - Acta Energetica - Year 2016

  The primary purpose of installing static shunt compensators in power grids is to improve the voltage conditions. Additional reactive power sources increase the system’s voltage stability and enable faster system recovery after a voltage failure. This paper presents the impact of an SVC device’s structure and settings on impedance change in the supply system, and hence on the frequencies at which resonance phenomena can develop.

  Full text available to download

• Risk of power cables insulation failure due to the thermal effect of solar radiation

  Publication

  • S. Czapp
  • S. Szultka
  • F. Ratkowski
  • A. Tomaszewski

  - Eksploatacja i Niezawodność - Maintenance and Reliability - Year 2020

  Low-voltage, as well as high-voltage power cable lines, are usually buried in the ground. The ampacity of the power cables in the ground mainly depends on the thermal resistivity of the soil, which may vary in a wide range. A common practice in power cable systems performance is to supply them from a pole of an overhead line. If so, a section of the line is located in free air and can be directly exposed to solar radiation. In...

  Full text available to download

• The impact of material degradation on the resistance and reliability of truss structures

  Publication

  • R. Ptaszek
  • J. Górski
  • K. Winkelmann

  - Year 2016

  The paper analyses limit load-carrying capacity and buckling load of truss towers used to support high voltage power lines. The analysed typical structure was subjected to characteristic loads and their combinations. The results were applied to assess structural resistance with regard to steel corrosion in the long-term operation. The extent of structural deterioration was assessed due to Young's modulus decrement in the course...

• Shaking table experimental study on damage mechanism of the disconnecting switch under seismic excitation

  Publication

  • P. Dembowski
  • R. Jankowski

  - Key Engineering Materials - Year 2011

  The efficiency of the energetic network is a very import safety issue in the region experienced by the earthquake. High voltage disconnecting switches are important elements of the energetic infrastructure used to separate electric circuits (i.e. during repairs), which should not be damaged remaining fully operational. The aim of the paper is to show the results of the shaking table experimental investigation focused on damage...

• WARUNKI REZONANSOWE W WĘŹLE Z KOMPENSATOREM SVC

  Publication

  • R. Kowalak

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2015

  Instalowanie kompensatorów statycznych w sieciach rozdzielczych i przesyłowych służy poprawie profili napięciowych. Kompensatory jako źródła mocy biernej zwiększają stabilność napięciową systemu. Pozwalają także na szybszą odbudowę systemu w przypadku awarii napięciowej. W artykule zaprezentowano wpływ struktury i wysterowania układu SVC na zmianę impedancji w układzie zasilania. Ma to bezpośredni wpływ na częstotliwości, przy...

  Full text available to download

• Wybrane metody diagnostyki łożysk silników indukcyjnych oparte o pomiar prądu

  Publication

  • L. Swędrowski
  • T. Ciszewski
  • E. Ciszewska

  - Measurement Automation Monitoring - Year 2014

  W artykule zawarto przegląd wybranych metod diagnostyki łożysk silnika indukcyjnego, bazujących na pomiarach prądu zasilającego. Jedno z nowych rozwiązań przetwarzania sygnałów zostało zaadaptowane przez autorów do stosowanego przez nich systemu diagnostycznego. Wyniki wstępnych badań symulacyjnych zweryfikowanych badaniami na rzeczywistym obiekcie wskazują, że rozwiązanie to ułatwia diagnozowanie. Autorzy zamierzają prowadzić...

• Electrophoretic Deposition of Chitosan/Eudragit E 100/AgNPs Coatings for Controlled Release of Antibacterial Substance

  Publication

  • Ł. Pawłowski
  • A. Zieliński

  - Year 2021

  The development of bacterial infection of the tissues surrounding an implant is one of the leading causes of implant surgery failure. In order to prevent the deposition of bacteria on the implant surface and the formation of biofilm, coatings that exhibit antibacterial properties are manufactured. However, the problem is the controlled release of the therapeutic substance from the coating over the extended life of the implant [1],...

  Full text to download in external service

• The values of Permutation Entropy for patients with Congestive Heart Failure

  Open Research Data

  open access

  • K. Tessmer
  • G. Graff

  The dataset consists of calculated values of entropy of 75 000  intervals between consecutive heartbeats (RR intervals) for 29 patients with congestive heart failure (CHF). The original data were taken from PhysioNet Congestive Heart Failure RR Interval Database (cf. Goldberger A., Amaral L., Glass L., Hausdorff J., Ivanov P.C., Mark R., Mietus J.E.,...

• The values of Block Entropy for patients with Congestive Heart Failure

  Open Research Data

  open access

  • K. Tessmer
  • G. Graff

  The dataset consists of calculated values of entropy of 75 000  intervals between consecutive heartbeats (RR intervals) for 29 patients with congestive heart failure (CHF). The original data were taken from PhysioNet Congestive Heart Failure RR Interval Database (cf. Goldberger A., Amaral L., Glass L., Hausdorff J., Ivanov P.C., Mark R., Mietus J.E.,...

• Heart failure, unspecified - Female, 55 - Tissue image [9140730014146001]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of ADRENAL GLAND tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Reliability data safety instrumented systems SIS from the functional safety analysis example critical instalation

  Open Research Data

  open access

  • E. Piesik
  • M. Śliwiński
  • D. Świsulski

  The dataset represents the results of an example of functional safety analysis systems is presented below. It is based on a control system, which consists of some basic components like sensors, programmable logic controllers and valves. It is a part of petrochemical critical installations. The communication between sensor logic controllers and actuators...

• Maximum forces in tendon connections for an anchor with a pin in the full sample experiment

  Open Research Data

  open access

  • S. Grymek
  • G. Rotta
  • B. Baczkowski

  - series: TENDON CONNECTION

  The main objective of the all study was to assess the load capacity of a new implant device for knotless tendon anastomosis. During this series of experiments the load capacity of the anchoring element with a pin (see figure 1) was examined. Tendons from fresh swine legs (commercially available) served as the biological material. All samples were subjected...

• Maximum forces in tendon connections for an anchor without pin in the single-side sample experiment

  Open Research Data

  open access

  • S. Grymek
  • G. Rotta
  • B. Baczkowski

  - series: TENDON CONNECTION

  The main objective of the all study was to assess the load capacity of a new implant device for knotless tendon anastomosis. During this series of experiments the load capacity of the anchoring element without a pin (see figure 1) was examined. Tendons from fresh swine legs (commercially available) served as the biological material. All samples were...

• Maximum forces in tendon connections for an anchor with pin in the single-side sample experiment

  Open Research Data

  open access

  • S. Grymek
  • G. Rotta
  • B. Baczkowski

  - series: TENDON CONNECTION

  The main objective of the all study was to assess the load capacity of a new implant device for knotless tendon anastomosis. During this series of experiments the load capacity of the anchoring element with a pin (see figure 1) was examined. Tendons from fresh swine legs (commercially available) served as the biological material. All samples were subjected...

• Maximum forces in tendon connections for the Kessler suture in the single-side sample experiment

  Open Research Data

  open access

  • S. Grymek
  • G. Rotta

  - series: TENDON CONNECTION

  The main objective of the all study was to assess the load capacity of a new implant device for knotless tendon anastomosis. During this series of experiments the load capacity of the traditional two-strand Kessler sutures (3-0 sutures) was examined. Tendons from fresh swine legs (commercially available) served as the biological material. All samples...

• Acute renal failure with tubular necrosis - Male, 36 - Tissue image [1060629594995461]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• STOMACH, Stomach, NOS - Female, 55 - Tissue image [9140730014145121]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of STOMACH tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Male, 36 - Tissue image [1060629594996991]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Male, 0 - Tissue image [7060729599324761]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure, unspecified - Male, 50 - Tissue image [10110730048223451]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with medullary necrosis - Male, 72 - Tissue image [12020630021663171]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure, unspecified - Male, 50 - Tissue image [10110730048221551]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with medullary necrosis - Male, 72 - Tissue image [12020630021663961]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Scanning electron microscopy studies of the weld decay on SS 304 of water supply pipeline

  Open Research Data

  open access

  • J. Ryl
  • J. Wysocka

  This dataset contains micrographs made with scanning electron microscope (SEM) Hitachi S-3400N, of the weld decay for water supply system pipelines made of AISI 304 stainless steel. Within the dataset one can see the different corrosion mechanisms. The micrographs were made after the Strauss test (excluding pictures labeled as pits_in_HAZ, done without...

• Acute renal failure with tubular necrosis - Male, 36 - Tissue image [1060629594995521]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of ADRENAL GLAND tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• BLADDER, Bladder wall, NOS - Female, 55 - Tissue image [9140730014141581]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BLADDER tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• SMALL INTESTINE, Jejunum - Female, 55 - Tissue image [914073001414651]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of SMALL INTESTINE tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure, unspecified - Male, 50 - Tissue image [10110730048227101]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LIVER AND INTRAHEPATIC BILE DUCTS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Male, 0 - Tissue image [7060729599321531]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Male, 0 - Tissue image [7060729599329731]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Male, 11 - Tissue image [12160630012639491]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Oesophagitis - Female, 55 - Tissue image [9140730014146031]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of ESOPHAGUS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Female, 60 - Tissue image [10080730015788841]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Glomerular disorders in diseases classified elsewhere - Female, 55 - Tissue image [9140730014137711]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Secondary malignant neoplasm of brain and cerebral meninges - Female, 55 - Tissue image [9140730014144841]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Other diseases of liver - Female, 55 - Tissue image [9140730014135791]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LIVER AND INTRAHEPATIC BILE DUCTS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• BRAIN, Cerebellum, NOS - Male, 0 - Tissue image [4050730010685351]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Secondary malignant neoplasm of brain and cerebral meninges - Female, 55 - Tissue image [914073001414561]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Female, 60 - Tissue image [10080730015785931]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Adenocarcinoma, NOS - Female, 55 - Tissue image [9140730014148371]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LIVER AND INTRAHEPATIC BILE DUCTS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Secondary malignant neoplasm of brain and cerebral meninges - Female, 55 - Tissue image [9140730014142001]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• BRAIN, Cerebellum, NOS - Male, 0 - Tissue image [4050730010687501]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Secondary malignant neoplasm of brain and cerebral meninges - Female, 55 - Tissue image [9140730014147871]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Acute renal failure with tubular necrosis - Male, 11 - Tissue image [1216063001263201]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of KIDNEY tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Adenocarcinoma, NOS - Female, 55 - Tissue image [9140730014143241]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRONCHUS AND LUNG tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Secondary malignant neoplasm of brain and cerebral meninges - Female, 55 - Tissue image [9140730014145251]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• BRAIN, Cerebellum, NOS - Male, 0 - Tissue image [4050730010682491]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Hepatic failure, unspecified - Male, 0 - Tissue image [7060729599329441]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LIVER AND INTRAHEPATIC BILE DUCTS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.