Filtry
wszystkich: 1620
-
Katalog
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: external viscosity
-
Preliminary Investigation on Auto-Thermal Extrusion of Ground Tire Rubber
PublikacjaGround tire rubber (GTR) was processed using an auto-thermal extrusion as a prerequisite to green reclaiming of waste rubbers. The reclaimed GTR underwent a series of tests: thermogravimetric analysis combined with Fourier-transform infrared spectroscopy (TGA-FTIR), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and static headspace and gas chromatography-mass spectrometry (SHS-GC-MS) in order...
-
The control software of the portable raman spectrometer
PublikacjaThe paper contains a description of the control software of a portable Raman spectrometer which was built in the Department of Optoelectronics and Electronic Systems Faculty of Electronics, Telecommunications and Informatics Gdansk University of Technology. The software has modular structure, which includes the laser control module and the spectrum acquisition module (laser power selection, working mode and data acquisition time)...
-
On modelling and non-linear elasto-plastic analysis of thin shells with deformable junctions
PublikacjaThe undeformed base surface of the irregular thin shell is modelled by the union of a finite number of regular smooth surface elements joined together along spatial curvilinear surface edges. The equilibrium conditions are formulated by postulating an appropriate form of the principle of virtual work, where also deformability of shell junctions is taken into account. The PVW is then discretised by C1 finite elements and the incremental-iterative...
-
Linear antenna microwave chemical vapour deposition of diamond films on long-period fiber gratings for bio-sensing applications
PublikacjaThe growth processes of nanocrystalline diamond (NCD) thin films on fused silica optical fibers with UV-induced long-period gratings (LPGs) were investigated with regard to biosensing applications. The films were deposited using a linear antenna microwave plasma enhanced chemical vapor deposition system, which allows for the growth of diamond at temperatures below 350°C. The films exhibited a high refractive index n = 2.32, as...
-
Adaptive Wavelet-Based Correction of Non-Anechoic Antenna Measurements
PublikacjaNon-anechoic measurements represent an affordable alternative to evaluation of antenna performance in expensive, dedicated facilities. Due to interferences and noise from external sources of EM radiation, far-field results obtained in non-ideal conditions require additional post-processing. Conventional correction algorithms rely on manual tuning of parameters, which make them unsuitable for reliable testing of prototypes. In this...
-
Diamond Structures for Tuning of the Finesse Coefficient of Photonic Devices
PublikacjaFinesse coefficient is one of the most important parameters describing the properties of a resonant cavity. In this research, a mathematical investigation of the application of diamond structures in a fiber-optic Fabry–Perot measurement head to assess their impact on the finesse coefficient is proposed. We present modeled transmission functions of cavities utilizing a nitrogen-doped diamond, a boron-doped diamond, nanocrystalline...
-
Influence of Spatial Structures of 316L Stainless Steel on Its Cavitation Erosion Resistance
PublikacjaCavitation erosion performance of modified macroscopic internal structure 316L stainless steel was investigated. The samples processed by means of SLM method were subjected to cavitation erosion test. The scanning electron microscope Philips 30/ESEM was used to examine morphology of eroded surface.
-
Nitrogen removal via the nitrite pathway during wastewater co-treatment with ammonia-rich landfill leachates in a sequencing batch reactor
PublikacjaThe biological treatment of ammonia-rich landfill leachates due to an inadequate C to N ratio requires expensive supplementation of carbon from an external carbon source. In an effort to reduce treatment costs, the objective of the study was to determine the feasibility of nitrogen removal via the nitrite pathway during landfill leachate co-treatment with municipal wastewater. Initially, the laboratory-scale sequencing batch reactor...
-
Experimental study on earthquake-induced pounding between steel structures
PublikacjaPounding between adjacent structures has been repeatedly observed during major earthquakes. The phenomenon may cause some local damage at the points of interactions, it may also lead to substantial destruction, permanent deformations or total collapse of colliding structures. The effects of earthquake-induced structural pounding have been studied for more than three decades now. However, most of the studies concerned masonry as...
-
Three-dimensional printed trachea helps to design tailored treatment for tracheobronchomalacia
PublikacjaTracheobronchomalacia is a rare respiratory disease that is manifesting by impaired ventilation with expiratory collapse of the tracheal wall due to softening of the supporting cartilage and hypotonia of myoelastic elements [1]. Surgery is the mainstay of treatment. We report the case of 39 -year old man with exacerbation of chronic respiratory distress. The membranous wall of the trachea and the large bronchi was stretched to...
-
Institution of the health care agent in Polish legislation: position of the Polish Working Group on End-of-Life Ethics
Publikacja -
The first Polish cohort of adult patients with common variable immunodeficiency from four specialized centers: do we provide standards of care?
Publikacja -
Life style and cardiovascular risk factors among students of Wroclaw postgraduate schools
Publikacja -
Remdesivir-based therapy improved recovery of patients with COVID-19 in the SARSTer multicentre, real-world study
Publikacja -
Levels of hemoglobin and lipid peroxidation metabolites in blood, catalase activity in erythrocytes and peak expiratory flow rate in subjects with passive exposure to tobacco smoke
Publikacja -
Association between small fiber neuropathy and higher skin accumulation of advanced glycation end products in patients with type 1 diabetes
Publikacja -
Central nervous system prophylaxis with intrathecal liposomal cytarabine in diffuse large B‑cell lymphomas
Publikacja -
Efficacy and safety of the obinutuzumab-chlorambucil combination in the frontline treatment of elderly CLL patients with comorbidities – Polish Adult Leukemia Group (PALG) real-life analysis
Publikacja -
Cancer associated thrombosis: comparison of characteristics, treatment, and outcomes in oncological and non-oncological patients followed by Pulmonary Embolism Response Team
Publikacja -
Role of rituximab in the first-line therapy of high-risk diffuse large B-cell lymphoma: a retrospective analysis by the Polish Lymphoma Research Group
Publikacja -
Emphysema affects the number and appearance of solitary pulmonary nodules identified in chest low-dose computed tomography: a study on high risk lung cancer screenees recruited in Silesian District
Publikacja -
Emphysema affects the number and characteristics of solitary pulmonary nodules. Authors' reply
Publikacja -
Enoxaparin induced eruptive angiokeratomas
Publikacja -
Recent advances in the pathophysiology of arterial hypertension - potential implications for clinical practice
Publikacja -
Comparative analysis of adropin concentration changes in response to kidney transplantation
Publikacja -
Association of muscular strength with pulsatile and steady hemodynamics in patients with acute myocardial infarction
Publikacja -
Arterial excess–reservoir pressure integral as a predictor of cardiovascular complications in subjects with acute coronary syndrome
Publikacja -
Acute cardiovascular responses elicited by consumption of beer in healthy people
Publikacja -
Acute hemodynamic effects of salted potato chips in healthy people
Publikacja -
The serum concentration of brain-derived neurotrophic factor is lower in ambulatory and clinically stable patients with more advanced systolic heart failure
Publikacja -
Arterial structure and function in subjects with acute coronary syndrome after one-year of treatment
Publikacja -
Association between high arterial stiffness and left ventricular filling pressures in patients with acute myocardial infarction
Publikacja -
Severe hypodysfibrinogenemia in a young patient with pulmonary thromboembolism: a case report
Publikacja -
Primary splenic angiosarcoma: a very rare and aggressive neoplasm with a poor prognosis
Publikacja -
Assessment of the mean time in the therapeutic INR range and the SAME-TT2R2 score in patients with atrial fibrillation and cognitive impairment
Publikacja -
Expression of ghrelin and ghrelin functional receptor GHSR1a in human pituitary adenomas
Publikacja -
Bleeding in anticoagulated patients with atrial fibrillation: practical considerations
Publikacja -
Stage of liver fibrosis in patients with congenital bleeding disorders and infected with hepatitis C virus
Publikacja -
Risk factors for chronic kidney disease do not influence the serum levels of asymmetric dimethylarginine in HIV-1-infected patients without significant renal disease
Publikacja -
An unusual case of gastrointestinal obstruction caused by bladder enlargement
Publikacja -
A rare cause of nontraumatic ureter perforation
Publikacja -
The impact of cytogenetic evolution and acquisition of del(17p) on the prognosis of multiple myeloma patients
Publikacja -
Safe administration of rituximab in patients with chronic lymphocytic leukemia and a history of obinutuzumab‑associated anaphylaxis
Publikacja -
The clinician’s guide to radiotherapy complications
Publikacja -
Effect of increased protein intake on the risk of female infertility
Publikacja -
Daily diet containing canned products significantly increases serum concentrations of endocrine disruptor bisphenol A in young women
PublikacjaNowadays, exposure to environmental factors is considered to be one of the possible causes of several lifestyle diseases, such as obesity, type 2 diabetes, cardiovascular disease, and cancer. Particularly noteworthy are endocrine‑disrupting chemicals (EDCs), which affect the metabolism of hormones and interact with their receptors, thus exerting adverse health effects. One of the most ubiquitous EDC in daily life is bisphenol A...
-
Ultrasonic Tomography of Brick Columns Based on FEM Calculations
PublikacjaUltrasonic tomography is one of the most developed method of non-destructive testing. Despite being used mainly in medicine, it is becoming more and more popular as a method for monitoring of structural elements. It allows to examine the internal structure and technical condition of the tested element. This paper investigates the influence of crosssectional geometry on an obtained tomographic image. Wave propagation signals were...
-
Effect of Simultaneous Valve Closures in Hydraulic Piping Systems
PublikacjaThe paper investigates wave interference (between pressure waves) occurring in simple hydraulic systems. Water hammer was induced by simultaneous closure of three valves located at the reservoirs of a “Y” type hydraulic system. Numerical simulations were carried out with the help of the freeware computer package Allievi enabling the reader to replicate results in a direct manner. The influence of the following quantities has been...
-
Hyaluronan-Chondroitin Sulfate Anomalous Crosslinking Due to Temperature Changes
PublikacjaGlycosaminoglycans are a wide class of biopolymers showing great lubricating properties due to their structure and high affinity to water. Two of them, hyaluronic acid and chondroitin sulfate, play an important role in articular cartilage lubrication. In this work, we present results of the all-atom molecular dynamics simulations of both molecules placed in water-based solution. To mimic changes of the physiological conditions,...
-
Hydrophobic deep eutectic solvents in microextraction techniques–A review
PublikacjaOver the past decade, deep eutectic solvents (DES) have been widely studied and applied in sample preparation techniques. Until recently, most of the synthesized DES were hydrophilic, which prevented their use in the extraction of aqueous samples. However, after 2015 studies on the synthesis and application of hydrophobic deep eutectic solvents (HDES) has rapidly expanded. Due to unique properties of HDES i.e. density, viscosity,...