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Mineral Deposits
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MINERALIUM DEPOSITA
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GEOLOGY OF ORE DEPOSITS
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Characterization of carbon deposit with controlled carburization degree
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Mining of Mineral Deposits
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FTIR- SPECTROSCOPIC CHARACTERISTICS OF THE DZHAKSY-KLYCH DEPOSIT SALTS
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PROSPECTS FOR RATIONAL USE OF MINERAL RESOURCES OF THE DZHAKSY-KLYCH DEPOSIT, THE ARAL REGION
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Sampling of atmospheric precipitation and deposits for analysis of atmospheric pollution
PublikacjaPrzedstawiono przegląd technik i przyrządów pomiarowych stosowanych w celu pobierania próbek mokrej i mgielnej depozycji (mgła, woda z chmur, szron, szadź, rosa). Przedstawiono również informacje literaturowe na temat oznaczania związków nieorganicznych i organicznych w próbkach opadów i osadów atmosferycznych z zastosowaniem odpowiednich technik pomiarowych.
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Geotechnical characterization of soft soil deposits in Northern Poland
PublikacjaThis paper presents a geotechnical characterization of deltaic soft soil deposits in the Vistula Marshlands, northern Poland. It shows the limited applicability of organic soil classifications based on Cone Penetration Tests (CPTU) and Dilatometer Tests (DMT). None of the in-situ-based classifications correctly identifies peat. Analysis of the behaviour of contractive/dilative soil layers according to Robertson's updated classification...
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Reality of short-term causality of Islamic and conventional banking term deposit rates in Pakistan
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The Influence of Siliceous Mineral Phases on the Mechanical Properties of Transitional Rocks in the Belchatow Lignite Deposit
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The Mineral Character and Geomechanical Properties of the Transitional Rocks from the Mesozoic-Neogene Contact Zone in the Bełchatów Lignite Deposit
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Carbon-mineral adsorbents with a diatomaceous earth/perlite matrix modified by carbon deposits
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Study of the formation of calcareous deposits on cathodically protected steel in Baltic sea water
PublikacjaPurpose – The purpose of this paper is to investigate whether the sedimentation of calcareous deposits occurs on cathodically protected steel in Baltic sea water. Design/methodology/approach – Steel electrodes were cathodically polarized in natural Baltic sea water at potential þ0.150 V vs Zn electrode in potentiostatic mode. During exposure chronoamperometric measurements were carried out. After the exposure, the electrode’s surface...
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Trace elements content of surface peat deposits in the Solovetsky Islands (White Sea)
PublikacjaPeatlands form environmental archives of trace element deposition. In this regard they are particularly valuable for areas such as the Arctic, where regular pollution monitoring is either impossible or extremely costly. The aim of this study was to assess pollution in the Solovetsky Islands (65° 05' N, 35° 53' E) by examining the spatial variability in trace element content of the uppermost layer of peat, immediately below the...
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The Opoka-Rock from the Mesozoic/Neogene Contact Zone in the Bełchatów Lignite Deposit – Characteristics of a Petrographic Nature and as a Raw Material
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Influence of carbon deposits and subsequent silylation of silica gel on sorption efficiency of explosive nitramines
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Zastosowanie chromatografii jonowej w analityce opadów i osadów atmosferycznych = Application of ion chromatography in atmospheric precipitation and deposit analysis
PublikacjaNajwiększy udział w dostawie zanieczyszczeń z atmosfery do powierzchni ziemi w regionach położonych w znacznych odległościach od źródeł emisji ma depozycja mokra (opady i osady atmosferyczne). Wody opadowe i wody spływne (również powstające z osadów atmosferycznych) dostają się wraz z zawartymi w nich związkami toksycznymi do wód powierzchniowych i gruntowych, które stanowią źródło wody pitnej. Pojawiła się więc konieczność stałego...
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YSZ Thin film deposited on porous substrate by spray pyrolysis
PublikacjaIn this work the results of deposition of YSZ layer on a porous substrate using an ultrasonic Spray Pyrolysis are presented.
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Polymer humidity sensors deposited directly on PCB laminate substrate
PublikacjaW artykule przedstawiono wyniki badań stabilności polimerowych czujników wilgotności zbudowanych na podłożu z laminatu PCB
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The Effect of Welding Conditions on Diffusible Hydrogen Content in Deposited Metal
PublikacjaThe article presents the results of a literature survey and preliminary tests which set out effects of welding conditions on the amount of diffusible hydrogen in deposited metal. Experiments were conducted by using rutile coated electrodes which generate high contents of diffusible hydrogen in deposited metal. The amount of diffusible hydrogen was determined by a glycerin test.Eleven factors were considered: the electrode angle,...
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Diffusible hydrogen content in deposited metal of multilayer welded joints
PublikacjaThe article describes manufacturing technology of multilayer joints in terms of control the diffusible hydrogen content. Diffusible hydrogen content in deposited metal for multilayer welded joints made of covered rutile electrodes or covered cellulosic and basic electrodes was determined. It was found that after four beads, the diffusible hydrogen content decreases in the case of the first technology from 36 ml/100 g to 18 ml/100...
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Amperometric gas sensors with elektrodes chemically deposited on Nafion membrane
PublikacjaW pracy przedstawiono opis metod otrzymywania elektrod pracujących w czujnikach amperometrycznych gazów z elektrolitem ciekłym. Zaprezentowano metody chemiczne takie jak: metoda impregnacji-redukcji i metoda Takenaka-Torikai. Przedstawiono przegląd konstrukcji czujnikowych gazowych z elektrodami tego typu.
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CLEANING METHODS FOR DUST DEPOSITED ON THE FRONT COVER OF PHOTOVOLTAIC MODULE
PublikacjaPhotovoltaic modules are one of the renewable energy sources with great potential for application in various regions of the world as well as for different terrain. They are, however, sensitive to external factors, affecting the overall amount of energy generated, such as solar irradiance, shading effects and any form of soil build-up on the front glass cover of solar device. The latter issue happens over a course of weeks, months...
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Robert Bogdanowicz dr hab. inż.
OsobyRobert Bogdanowicz received his Ph.D. degree with honours in Electronics from the Gdansk University of Technology. He worked as a post-doc researcher in Ernst-Moritz-Arndt-Universität Greifswald Institut für Physik. He has initiated optical emission imaging of muti-magnetron pulsed plasma and contributed to the development of antibacterial implant coatings deposited by high-power impulse magnetron sputtering. He moved back to...
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Pobieranie próbek opadów i osadów atmosferycznych do analizy. Sampling of atmospheric precipitation and deposits for the analysis.
PublikacjaOmówiono różne typy próbników stosowanych do pobierania próbek opadów i osadów atmosferycznych (mgła i woda z chmur, rosa i szadź). Zaprezentowano urządzenia o różnym stopniu automatyzacji. Przedstawiono również informacje literaturowe na temat oznaczania związków nieorganicznych i organicznych w próbkach opadów i osadów atmosferycznych z zastosowaniem odpowiednich technik pomiarowych.
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Ellipsometric study of carbon nitride films deposited by DC-magnetron sputtering
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Ellipsometric study of carbon nitride films deposited by DC-magnetron sputtering
PublikacjaWe report the optical properties of a carbon nitride (CNx) film as a function of nitrogen concentration (N/C) of the deposited film. As nitrogen concentration is increased (N/C ratio) in a CNx film, the refractive index and band gap also increase. The real and imaginary parts, n and k (refractive index and extinction coefficient) of the complex refraction index of carbon nitride films were determined by spectroscopic ellipsometry...
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Influence of nitrogen plasma treatment on the wettability of polyetheretherketone and deposited chitosan layers
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Photocatalytic performance of titania nanospheres deposited on graphene in coumarin oxidation reaction
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Palladium nanoparticles deposited on graphene and its electrochemical performance for glucose sensing
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Modal Analysis of Planar Elliptical Resonator Deposited on Unshielded Dielectric Slab
PublikacjaModal analysis of isolated open planar elliptical patch placed on dielectric slab is presented in the paper. It applies concept of Illuminating Modes which is formulated for the case of two-side opened structure. The current on patch is expanded in basis functions in form of Mathieu radial and angular functions. The spectrum of excited modes for exemplary planar resonators is presented and discussed using the concept of power of...
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Assessment of hydrogenation of deposited metal of P 62 MR covered electrodes
PublikacjaThe determination of diffusible hydrogen content in deposited metal of P 62 MR covered electrodes for manual metal arc welding by mercury method was carried out. The test results indicate that covered electrodes 62 P MR grade generate a mean of 4.02 ml/100g of diffusible hydrogen in deposited metal, which is consistent with H5 class.
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MnCo2O4 deposited by spray pyrolysis as a protective layer for stainless steel interconects
PublikacjaStainless steel interconnects working in Solid Oxide Fuel Cells stacks are exposed to high temperature resulting in their corrosion. Protective layers for the hydrogen and oxygen sides are necessary to protect the interconnect material, prolongate the stack lifetime and maintain the output power. In this paper MnCo2O4 protective layer for the oxygen side of the interconnect is deposited by spray pyrolysis and is examined.
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Optical and photoelectrochemical characterization of pulsed laser deposited Bi4V2O11, BICUVOX, and BIZNVOX
PublikacjaThin layers of three compounds from the BIMEVOX family (Bi4V2O11, Bi2V0.9Cu0.1O5.35, and Bi2V0.9Zn0.1O5.35) were prepared via pulsed laser deposition technique on quartz, silicon, and platinum foil and tested as photoanodes for water photooxidation. The film formation, as well as the crystallization upon heating, was characterized using X-ray diffraction and Raman spectroscopy. The optical properties were investigated using spectroscopic...
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mRNA adenosine methylase (MTA) deposits m 6 A on pri-miRNAs to modulate miRNA biogenesis in Arabidopsis thaliana
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Evidence for widespread occurrence of copper in Late Neolithic Poland? A deposit of Funnel Beaker Culture bone products at site 2 in Osłonki (Kuyavia, central Poland)
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Layer-by-layer polymer deposited fabrics with superior flame retardancy and electrical conductivity
PublikacjaSmart and multifunctional textiles and fabrics are progressively developing, such that multifunctional fabrics are becoming more widespread. We elaborated herein multi-layered flax fabrics with superior flame retardancy and conductivity, which revealed fireproof feature while keeping conductivity during burning. The flax fabric was reinforced by layer-by-layer (LbL) deposition of sodium polyacrylate (SPA), polyethylenimine (PEI),...
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Electrochemical stability of TiO2 nanotubes deposited with silver and gold nanoparticles in aqueous environment
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Optical and chemical characterization of thin TiNx films deposited by DC-magnetron sputtering
PublikacjaThin titanium nitride (tinx) films were deposited on silicon substrates by means of a reactive dc-magnetron plasma. Layers were synthesized under various conditions of discharge power and nitrogen flows in two operation modes of the magnetron (the so-called "balanced" and "unbalanced" modes). The optical constants of the tinx films were investigated by spectroscopic ellipsometry (se). X-ray photoelectron spectroscopy (xps) was...
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DETERMINATION OF DIFFUSIBLE HYDROGEN CONTENT IN DEPOSITED METAL OF RUTILE ELECTRODES BY GLYCERIN METHOD
PublikacjaThe presence of diffusible hydrogen in welded joints is one of the causes of formation the welding imperfections. Improvement of weldability can be achieved by reducing the hydrogen amount in welded joints. This requires, among others, the finding of sources of hydrogen. For high hydrogen processes the commonly used method of determining the diffusible hydrogen amount is the glycerin method. This paper concerns issues related to...
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Surface texture formation in precision machining of direct laser deposited tungsten carbide
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Surface roughness analysis after machining of direct laser deposited tungsten carbide
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Surface Characteristics of Plasma Treated and Titanium Nitride (TiN) Deposited Aluminum Alloy
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New preparation of a carbon-TiO2 photocatalyst by carbonization of n-hexane deposited on TiO2
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Spectroscopic Study of Plasma Polymerized a-C:H Films Deposited by a Dielectric Barrier Discharge
PublikacjaPlasma polymerized a-C:H thin films have been deposited on Si (100) and aluminum coated glass substrates by a dielectric barrier discharge (DBD) operated at medium pressure using C2Hm/Ar (m = 2, 4, 6) gas mixtures. The deposited films were characterized by Fourier transform infrared reflection absorption spectroscopy (FT-IRRAS), Raman spectroscopy, and ellipsometry. FT-IRRAS revealed the presence of sp3 and sp2 C–H stretching and...
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Spray-deposited carbon-nanotube counter-electrodes for dye-sensitized solar cells
PublikacjaCarbon nanotubes due to their catalytic properties are a promising alternative to platinum counter electrodes (CE) for dye-sensitized solar cells (DSSC). In this study, counter electrodes were made from double-walled carbon nanotube (DWCNT) ink using the spray printing technique and afterwards they were thermally treated at temperatures ranging from 120 to 300 °C. Morphology and structure was studied using scanning electron microscopy...
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Spray deposited carbon nanotubes counter electrodes for dye-sensitized solar cells
PublikacjaCarbon nanotubes due to their catalytic properties are a promising alternative to platinum counter electrodes (CE) for dye-sensitized solar cells (DSSC). In this study, counter electrodes were made from double-walled carbon nanotube (DWCNT) ink using the spray printing technique and afterwards thermally treated at temperatures ranging from 120 to 300 °C. Morphology and structure was studied using scanning electron microscopy and...
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Effect of underwater wet welding conditions on the diffusible hydrogen content in deposited metal
PublikacjaIn the study mercury displacement method was used for determination of diffusible hydrogen amount in deposited metal obtained during underwater wet welding with covered electrodes in laboratory conditions according to a two-level full factorial design for three factors. The factors and their levels were chosen among conditions and parameters of welding in accordance with the results of own preliminary studies. A statistical analysis...
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The determinants of morphology and properties of the nanohydroxyapatite coating deposited on the Ti13Zr13Nb alloy by electrophoretic techniqe
PublikacjaThe titanium and its alloys belong at present to the most preferred and commonly applied biomaterials for load- bearing implants. The surfaces of biomaterials are subjected to modification, including the hydroxyapatite coatings deposited in order to ensure corrosion resistance and better joining between an implant and a bone through the possibility of ingrowth bone into the coating. In this paper, the morphology and properties...