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Polypropylene structure alterations after 5 years of natural degradation in a waste landfill
PublicationUp to 25% of plastic waste in Europe is still disposed of in landfills, despite recycling efforts. The plastic waste in the landfill plot may be exposed both to abiotic and biotic degradation processes, although it is thought that most of the plastic materials tend to be resistant to biodegradation or biodeterioration even after a long time. To verify if polypropylene (PP) can undergo the process of short-term biodegradation and...
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Formation of the hollow nanopillar arrays through the laser-induced transformation of TiO2 nanotubes
PublicationIn the following article, we present a simple, two-step method of creating spaced, hollow nanopillars, from the titania nanotube arrays via pulsed laser-treatment. Due to the high ordering of the structure, the prepared material exhibits photonic properties, which has been shown to increase the overall photoefficiency. The optical and morphological changes in the titania nanotubes after pulsed laser-treatment with 532, 355, and...
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Impedance characterization of the process of polyaniline first redox transformation after aniline electropolymerization
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Use of impedance spectroscopy to evaluate the durability of protective coatings after thermal shock
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Change of the Phase Composition and Strength of Al2O3–ZrO2-Ceramic After Hydrothermal Aging
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The crack surface morphology investigation of S355J2 steel after bending-torsion fatigue
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Mortality After Traumatic Brain Injury in Elderly Patients: A New Scoring System
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Development of free electron laser and accelerator technology in Poland (CARE and EuCARD projects)
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Structure and Mechanical Properties of Composite Layers Prepared by Laser Alloying of Aluminium Alloy
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Investigating the Essential Oil Composition of Rosmarinus officinalis Before and After Fertilizing with Vermicompost
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Acousto-optic interaction of a Gaussian laser beam with an ultrasonic wave of cylindrical symmetry
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Agricultural Practice in Poland Before and After Mandatory IPM Implementation by the European Union
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Femtosecond studies of the excited-state dynamics of ester-alkyloxy substituted zinc phthalocyanines
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Double wedge prism based beam deflector for precise laser beam steering
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Metabolism of Tryptophan and Depressive Symptoms Six Months after Interferon- alfa Treatment
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Influence of Laser Modification on the Surface Character of Biomaterials: Titanium and Its Alloys—A Review
PublicationLaser surface modification is a widely available and simple technique that can be applied to different types of materials. It has been shown that by using a laser heat source, reproducible surfaces can be obtained, which is particularly important when developing materials for medical applications. The laser modification of titanium and its alloys is advantageous due to the possibility of controlling selected parameters and properties...
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Magnetic anisotropy in the exchange-biased laser-patterned thin Co/CoO films
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Expression of cyclin D1 after treatment with doxorubicin in the HL-60 cell line
PublicationIncreased levels of cyclin D1 and amplification of CCND1 gene occur in many types of cancers. We have followed the expression of cyclin D1 after treatment with doxorubicin with reference to cell death and other possible therapeutic implications. The effect of the treatment on the cell cycle, survival, intracellular level (flow cytometry), and intracellular localization of cyclin D1 (fluorescence microscopy) and expression of...
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Evaluation of Analytes Characterized with Potential Protective Action after Rat Exposure to Lead
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Surface Property Modification of Collagen, Hyaluronic Acid, and Chitosan Films with the Neodymium Laser
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Neurohypophyseal Receptors-Ligands: Where We Are After the Landmark Rhodopsin Structure Determination
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The method of analysis of damage reinforced concrete beams using terrestial laser scanning
PublicationThe authors present an analysis of the possibility to assess deformations and mechanisms of destructing bent reinforced concrete beams using the terrestrial laser scanning. As part of the experiments carried out at the Regional Laboratory of Construction of the Concrete Structures Division of the Civil and Environmental Engineering Faculty at Gdansk University of Technology, the reinforced concrete beams were subjected to destruction...
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Preparation of platinum modified titanium dioxide nanoparticles with the use of laser ablation in water
PublicationWe report on the preparation method of nanocrystalline titanium dioxide modified with platinum by using nanosecond laser ablation in liquid (LAL). Titania in the form of anatase crystals has been prepared in a two-stage process. Initially, irradiation by laser beam of a titanium metal plate fixed in a glass container filled with deionized water was conducted. After that, the ablation process was continued, with the use of a platinum...
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Legal regulation of direct investment in the United Kingdom and EU countries after Brexit
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Foreign Trade Changes in Poland and Slovakia as an Effect of Europeanization before and after the Accession
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German Jews in Jelenia Góra immediately After the End of the Second World War
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Significant Down-Regulation of “Biological Adhesion” Genes in Porcine Oocytes after IVM
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Fabrication Of Scaffolds From Ti6Al4V Powders Using The Computer Aided Laser Method
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Surface analysis of ureteral stent before and after implantation in the bodies of child patients
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Preparation of porous TiO2 films by means of pulsed laser deposition for photocatalytic applications
PublicationIn this work the preparation and structure properties of porous thin films of TiO2 were investigated. The films were produced by means of the pulsed laser deposition technique using laser pulses at 266nm (10Hz) and at fluencies of 1-3.5J/cm2. The process was performed in vacuum using O2 buffer gas and films were deposited on the SiO2 glass or Si substrate. X-ray diffraction (XRD) and Raman analysis of the structure and chemical...
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Engineering Au nanoparticle arrays on SiO2 glass by pulsed UV laser irradiation
PublicationWe study semi-regular arrays of Au nanoparticles (NP) obtained via UV laser irradiation of thin Au films on glass substrate. The NP structures are prepared from films of a thickness up to 60 nm produced by discharge sputtering or pulsed laser deposition, and annealed by nanosecond laser pulses at 266 or 308 nm, respectively, at fluencies in the range of 60-410 mJ/cm2. For the rare- and close-packed NP structures, consistent description...
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Mental state and quality of life after 10 session whole-body cryotherapy
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The improvement of cognitive deficits after whole-body cryotherapy – A randomised controlled trial
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Changes of augmentation index early after ischaemic stroke predict functional outcome
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Pulse wave velocity is associated with early clinical outcome after ischemic stroke
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The Erosion Resistance and Microstructure Evaluation of Laser Surface Alloyed Sintered Stainless Steels
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Influence of Laser Treatment on Microstructure of Surface Layer of the Ti-6Al-4V Alloy
PublicationPrzedstawiono mikrostrukturę powierzchni, przekroju i przełomu warstwy wierzchniej stopu Ti-6Al-4V uzyskanej po nadtapianiu laserem w różnym środowisku. Stwierdzono wzrost mikrotwardości stopu w warstwie nadtopionej, rozdrobnienie ziarna, a także tworzenie azotków tytanu i mikropęknięć skutkiem obecności znacznych naprężeń własnych. Grubość wytworzonych warstw osiągała wartość 1,5 mm.
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Laser Investigations of Flow Patterns in Electrostatic Precipitators and Non Thermal Plasma Reactors
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Chemical, thermal and laser processes in recycling of photovoltaic silicon solar cells and modules
PublicationIn recent years, photovoltaic power generation systems have been gaining unprecedented attention as an environmentally beneficial method to solve the energy problem. From the economic point of view the pure silicon, which can be recapture from the used cells, is the most important material due to its cost and shortage. In the paper selected methods of used or damaged module and cells recycling and experimental results are presented....
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Mechanical Properties and Strength Reliability of Impregnated Wood after High Temperature Conditions
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Surface texture formation in precision machining of direct laser deposited tungsten carbide
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Influence of Genotype on Meat Quality in Laying Hens after the Egg Production Season
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Application of high pressure laser flash photolysis in studies on selected hemoprotein reactions
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Surface quality and topographic inspection of variable compliance part after precise turning
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Age is not associated with increased surgical complications in patients after laparoscopic sleeve gastrectomy
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Laser induced elastooptics in novel Bi2O3, and Pr2O3 doped tellurite rich glasses
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Syntheses, structures and chemical properties of unsaturated oligo(alkylene-ester-ether)diols
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Superconductivity in PrBa2Cu3O7−δ single crystals after high-temperature thermal treatment
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The possibility of an use of laser treatment to improve the behaviour of the Ti-6Al-4V alloy
PublicationPrezentowana praca miała na celu stworzenie warunków ultraszybkiego chłodzenia przetopionej warstwy w obecności azotu tak, aby otrzymać twardą i gruba warstwę wierzchnią na stopie Ti-6Al-4V , najczęściej używanm stopie Ti, zawierającą struktury martenzytu i azotku tytanu.
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The phase composition of the surface layer of laser melted Ti-6Al-4V bioalloy
PublicationZastosowanie metody obróbki laserowej stopów Ti zwiekszyły twardość i odporność stopu na korozję. Jednakże uzyskane warstwy były stosunkowo cieńkie. W pracy zastosowano laser o dużej mocy dla stopu schłodzonego w ciekłym azocie, aby uzyskać grubszą warstwę, która w strefie zewnętrznej złożona będzie z tlenku i azotku tytanu, ważnych faz w biostopach.