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Wyniki wyszukiwania dla: DMI
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DMI measurements impact on a position estimation with lack of GNSS signals during Mobile Mapping
PublikacjaNowadays, Mobile Laser Scanning is common in use in addition to geodesy measurements. The data which are provided by the system characterizes with high precision and flexibility. To precise mapping, the accuracy of the data should be maintained. In Poland, according to the minister’s dispositions, the accuracy of the data should not exceeded 10 cm. With fully operated system it is easy to uphold, but there is a situation when a...
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Evaluation of the Commercial Electrochemical Gas Sensors for the Monitoring of CO in Ambient Air
PublikacjaAir pollution is a growing concern of civilized world, which has a significant impact on human health and the environment. Recent studies highlight that the exposure to polluted air can increase the incidence of diseases and deteriorate the quality of life. Hence, it is necessary to develop tools for real-time air quality monitoring. For air pollution monitoring a wide range of stationary gas and particulate analysers can be used....
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Limited selectivity of amperometric gas sensors operating in multicomponent gas mixtures and methods of selectivity improvement
PublikacjaIn recent years, smog and poor air quality have became a growing environmental problem. There is a need to continuously monitor the quality of the air. The lack of selectivity is one of the most important problems limiting the use of gas sensors for this purpose. In this study, the selectivity of six amperometric gas sensors is investigated. First, the sensors were calibrated in order to find a correlation between the concentration...
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Selectivity of amperometric gas sensors in multicomponent gas mixtures
PublikacjaIn recent years smog and poor air quality became a growing environmental problem. There is a need to continuously monitor the quality of air. The lack of selectivity is one of the most important problems limiting the use of gas sensors for this purpose. In this study, a selectivity of the six amperometric gas sensors is being investigated. Calibration of sensors has been performed in order to find a correlation between concentration...
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Coupled inductors based filter for matrix converters
PublikacjaThe use of the coupled inductors in the multipulse matrix converter (MC) systems is described in the paper. The possible arrangements of the system are given together with the description of their operation parameters. Moreover, the influence of the system’s topology on the output power quality is also presented. The invented converter structures evaluation results are given in the form of simulation tests acquired output waveforms...
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Technological features of forming the quality characteristics of the surface layer during diamond smoothing in the integrated processing
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Prediction of Deflagrative Explosions in Variety of Closed Vessels
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Identification of defected sensors in an array of amperometric gas sensors
PublikacjaPurpose Amperometric gas sensors are commonly used in air quality monitoring in long-term measurements. Baseline shift of sensor responses and power failure may occur over time, which is an obstacle for reliable operation of the entire system. The purpose of this study is to check the possibility of using PCA method to detect defected samples, identify faulty sensor and correct the responses of the sensor identified as faulty. Design/methodology/approach In...
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Gas mixtures recognition using an array of amperometric gas sensors with drifting or faulty sensors
PublikacjaIn this study, the possibility of using selected methods for diagnostics of performance of matrix composed with six amperometric electrochemical gas sensors is investigated. Measurements of sensor responses in selected concentrations of single toxic gases or gas mixtures were performed and were repeated over time to show sensor drift. Additionally, the studies on the sensors’ drift were performed. The drift has been recognized...
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Mitigation effect of face shield to reduce SARS-CoV-2 airborne transmission risk: Preliminary simulations based on computed tomography
PublikacjaWe aimed to develop a model to quantitatively assess the potential effectiveness of face shield (visor) in reducing airborne transmission risk of the novel coronavirus SARS-CoV-2 during the current COVID-19 pandemic using the computational fluid dynamics (CFD) method. The studies with and without face shield in both an infected and healthy person have been considered in indoor environment simulation. In addition to the influence...
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Dynamics of Systems with a Discontinuous Hysteresis Operator and Interval Translation Maps
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Evaluative analysis of 2- and 3-level DC/DC converters for high-voltage high-power applications
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DESIGN LOGICAL LINGUISTIC MODELS TO CALCULATE NECESSITY IN TRUCKS DURING AGRICULTURAL CARGOES LOGISTICS USING FUZZY LOGIC
Publikacja: The study is aimed to develop the logic-linguistic models to design a number of rules for the correct calculation of the vehicles needed, taking into account the technical, technological, and weather and climate conditions of the harvesting and transport complex. The article has shown that the construction of the design of logic-linguistic models was not performed earlier to solve the problem of the agro-industrial production...
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Halitosis vs tonsil stones: is this an otolaryngological problem?
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Historia otologii. Część II (od schyłku XIX do końca XX wieku)
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Nasal septum turbinate and its significance for a rhinosurgeon
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Historia Otologii – od starożytności do końca XIX wieku
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First bite syndrome: the complication to keep in mind
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Percutaneous Tracheostomy
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Rhinological factors predisposing to headaches: our experience.
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Regarding to functional outcomes after extracapsular dissection with partial facial nerve dissection for small and large parotid neoplasms
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Regarding the “Is Surgery an Inevitable Treatment for Advanced Salivary Lymphoepithelial Carcinoma? Three Case Reports”
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Regarding the “Review of surgical techniques and guide for decision making in the treatment of benign parotid tumors”
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Scientific tools for collecting and analysing medical data in rhinology.
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Multiple β-sheet molecular dynamics of amyloid formation from two ABl-SH3 domain peptides
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Ultrastructural analysis of the submandibular sialoliths: Raman spectroscopy and electron back-scatter studies
PublikacjaThe aim of work was the epidemiological analysis of the occurrence of sialolithiasis of the submandibular gland in adults and the evaluation of the ultrastructure of salivary stones. The study sample consisted of 44 sialoliths. Analysis of the structure and chemical composition of sialoliths was performed using a Scanning Electron Microscope and Raman Spectroscopy. Comparing our results with the literature we can say that the epidemiology...
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IEEE Industrial Electronics Society Students and Young Professionals Just After the Pandemic Time [Students and Young Professionals News]
PublikacjaReport on IEEE IES Society student activities in year 2022.
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Step-Up DC/DC Converters With Cascaded Quasi-Z-Source Network
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Performance improvement method for the voltage-fed qZSI with continuous input current
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New high-gain step-up DC/DC converter with high-frequency isolation
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Two-stage quasi-Z-source network based step-up DC/DC converter
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CCM and DCM operation analysis of cascaded quasi-Z-source inverter
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Trans-Z-source-like inverter with built-in DC current blocking capacitors
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Step-Up DC/DC Converters With Cascaded Quasi-Z-Source Network
PublikacjaW artykule zaprezentowano nowe rozwiązania dotyczące przekształtników energoelektronicznych DC-DC podwyższających napięcie z ogniw paliwowych. Istota rozwiązania zawiera się w zastosowaniu kaskadowo połączonych wejściowych obwodów pasywnych typu Quasi-Z, umozliwiających znaczne podwyższanie napięcia z wykorzystaniem stanu parcy zwarć gałęzi tranzystorowych przekształtnika.
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Four level inverter's DC bus voltage balancing with 3-terminal DAB converter
Publikacja—Multilevel inverters become more and more popular, especially in the medium or high voltage and high power applications. Unfortunately, some of inverter topologies require additional DC bus voltage balancing systems. This paper presents a novel approach to such systems, which is based on a multiple terminal DAB converter. Along with the voltage balancing function the proposed solution enables the connection of energy storage devices...
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Properties of Cutting Tool Composite Material Diamond–(Fe–Ni–Cu–Sn) Reinforced with Nano-VN
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Can we avoid intracranial complications of chronic otitis media?
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Investigations of Malfunctions of the Vestibular System
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Intralabyrinthine Hemorrhage in A Patient With COVID-19 – A Challenge For An Otologist
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Regarding “Accuracy, predictability and prognostic implications of fine‐needle aspiration biopsy for parotid gland tumours: A retrospective case series”
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Regarding the “The spiral ladder technique of facial nerve trunk identification during parotidectomy: A convenient roadmap for the beginners”
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In Reference to The Challenges of Pharmacotherapy of SARS-CoV-2 Infection in Patients With Sudden Sensorineural Hearing Loss Due to COVID-19
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Tinnitus in COVID-19 Pandemic
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Ultrastructural alterations of the tympanic membrane in retraction pockets from patients with chronic otitis media
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Metastasis of the testicular germ cell tumors to the parotid gland
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In Reference to Voice, Swallow and Airway Outcomes Following Tracheostomy for COVID-19
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Should patients with sudden deafness be tested for COVID19?
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Palatine tonsil adenoid cystic carcinoma
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First bite syndrome after parotidectomy: a single-centre experience
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Can the SARS-CoV-2 virus damage human hearing and balance?
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