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The influence of azide and imidazole on the properties of Mn- and Cd-based networks: conductivity and nonlinear phenomena
PublicationWe report a study on a family of four new Mn- and Cd-azide-imidazolate-based compounds with various crystal architectures. Notably, three of these compounds display noncentrosymmetric crystal arrangements at room temperature, a rare phenomenon in hybrid organic–inorganic materials. Both nonlinear optical (NLO) and electrical phenomena in these compounds are observed. The NLO processes include second and third harmonic generation,...
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Land development and forms of heavy metals occurrence (zn, cd, pb) in polish rivers
PublicationEkosystemy rzeczne podlegają intensywnej antropopresji. Metale ciężkie występujące w glebie i osadach dennych w różnych formach specjacyjnych mają istotny wpływ na wtórne zanieczyszczenie wody ze względu na takie procesy jak migracja, akumulacja i biowzbogacanie.Przedmiotem badań były próbki gleby, osadów dennych oraz wody pobrane z różnych rzek z południowej części województwa świętokrzyskiego. W trakcie badań próbek wykorzystano...
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Metal tolerance and Cd phytoremoval ability in Pisum sativum grown in spiked nutrient solution
PublicationIn the presented study, the effects of cadmium (Cd) stress and silicon (Si) supplementation on the pea plant (Pisum sativum L.) were investigated. The tendency to accumulate cadmium in the relevant morphological parts of the plant (roots and shoots respectively)—bioaccumulation, the transfer of this element in the plant (translocation) and the physiological parameters of the plant through...
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Wwpływ temperatury suszenia osadów ściekowych na specjację metali ciężkich (Zn, Cu, Cd, Pb) = Influence of thermal drying temperature on heavy metal (Zn, Cu, Cd, Pb) speciation in sewage sludge
PublicationPrzedstawiono wpływ temperatury suszenia osadów ściekowych na zmiany specjacji metali ciężkich oraz określono stopień mobilności metali ciężkich w aspekcie ich późniejszego zagospodarowania. Ekstrakcja sekwencyjna metali ciężkich została wykonana wg schematu Tessier'a.
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(CsX)Cu5O2(PO4)2 (X = Cl, Br, I): A Family of Cu2+ S = 1/2 Compounds with Capped-Kagomé Networks Composed of OCu4 Units
PublicationThree new salt inclusion compounds (CsX)Cu5O2(PO4)2 (X = Cl, Br, I), phosphate analogues of the kagomé mineral averievite, are reported. Their crystal structures are composed of trigonal networks of corner-sharing OCu4 anion-centered tetrahedra, forming capped-kagomé planes, which can also be regarded as two-dimensional slices along the [111] direction of a pyrochlore lattice. Magnetization and heat capacity measurements reveal...
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Towards a modification of a regulatory framework aiming at bunker oil spill prevention from ships - A design aspect of bunker tanks vents location guided by CFD simulations
PublicationAlthough accidental bunker oil spills at seaway are relatively rare events, they can be pose real threat to the natural marine environment. One of the reasons for the bunker spill to occur is a design failure; one of the ways it can demonstrate is an improper location or height of vent heads, leading to a bunker oil discharge during heavy rolling, due to sloshing phenomenon. Design of a ship and her systems is guided by various...
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Species-specific Cd-detoxification mechanisms in lumbricid earthworms Eisenia andrei, Eisenia fetida and their hybrids
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Performance Models of a Multidomain IMS/NGN Service Stratum
PublicationThis paper quantifies call processing performance (CPP) of a multidomain IMS/NGN architecture, which was proposed to deliver current and future telecommunication services with strict quality requirements, independently of the transport network technologies. A realistic simulation model is used as a reference for evaluation of the analytical results, in which vari-ous types of queuing systems are applied to model the opera-tion...
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Ceragenin CSA-13 as free molecules and attached to magnetic nanoparticle surfaces induce caspase-dependent apoptosis in human breast cancer cells via disruption of cell oxidative balance
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Comparative analysis of the quality parameters and the fatty acid composition of two economically important Baltic fish: cod, Gadus morhua and flounder, Platichthys flesus (Actinopterygii) subjected to iced storage
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Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution
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Investigating the potential influence of biochar and traditional organic amendments on the bioavailability and transfer of Cd in the soil–plant system
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Thermal treatment of montmorillonite modified with Cd[SC(NH2)2]42+ from two polymorphic salts
PublicationMontmorillonite(MMT)/CdS nanocomposites can be obtained using simple ionic exchange between Na(I)-MMT and Cd[SC(NH2)2]42+∙2NO3. The resulting products may be annealed to give (MMT)/CdS nanocomposites as it was proved by XRD analysis.
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Zaufanie w zespole badawczym – studium przypadku (projekt CD NIWA realizowany na Politechnice Gdańskiej)
PublicationArtykuł dotyczy tematyki klimatu pracy zespołowej, ze szczególnym uwzględnieniem zaufania w zespole jako czynnika warunkującego zaangażowanie, efektywność i innowacyjność zespołu. Przeanalizowano znaczenie oraz wymiary zaufania w zespole badawczym na podstawie koncepcji International Team Trust Indicator, czyli dziesięciowymiarowego modelu zaufania. Celem artykułu jest analiza klimatu współpracy i poziomu zaufania w interdyscyplinarnym...
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Structure and thermoelectric properties of Cs-Bi-Te alloys fabricated by different routes of reduction of oxide reagents
PublicationCesium-bismuth-telluride polycrystalline materials were fabricated using a cost-effective method based on a reduction of oxide reagents, leading to a production of a material with good thermoelectric properties. Several samples with various initial stoichiometry were prepared by melting of oxide powders at 1050 °C, quenching, milling to powders and then reducing in pure hydrogen at 400 °C. Another concept was to obtain the CsBi4Te6...
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Simulation model for assessment of IMS-based NGN call processing performance
PublicationIn current telecommunications it is assumed that demands of information society for quickly delivered services will be satisfied by Next Generation Network (NGN) architecture, which includes IP Multimedia Subsystem (IMS) elements. To guarantee Quality of Service (QoS), proper design and dimensioning of NGN is absolutely necessary, for which appropriate models have to be proposed. As NGN architecture is very complicated, the most...
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Simulation model of IMS/NGN call processing performance
PublicationIn current telecommunications it is assumed that demands of the information society for quickly delivered services will be satisfied by the Next Generation Network (NGN) architecture, which includes IP Multimedia Subsystem (IMS) elements. To guarantee Quality of Service (QoS), proper design and dimensioning of NGN is absolutely necessary, for which appropriate models have to be proposed. As the NGN architecture is very complicated,...
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Call processing performance in multidomain IMS/NGN architecture
PublicationThe Next Generation Network (NGN) architecture, which bases on the IP Multimedia Subsystem (IMS) concept, is a proposition of a telecommunication network dedicated to the needs of the modern information society. The main goal of NGN is to provide Quality of Service (QoS), for which proper network design and dimensioning are necessary. This also requires appropriate traffic models, which should be efficient and not excessively complicated...
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Verification of the Analytical Traffic Model of a Multidomain IMS/NGN Using the Simulation Model
PublicationIn this paper we verify the previously proposed analytical traffic model of a multidomain Next Generation Network (NGN), which is standardized for delivering multimedia services based on the IP Multimedia Subsystem (IMS). For this reason a proper simulation model used, in which not theoretical queuing system models but the operation of real network elements and standardized call scenarios are accurately implemented. Consequently,...
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Zn(II) and Cd(II) coordination polymers with tri-tert-butoxysilanethiol and bipyridines. Synthesis, crystal structure and spectroscopy
PublicationTrzy nowe silanotiolany cynku(II) I kadmu(II) [Zn{SSi(OtBu)3}2(μ-bpea) •CH3CN]n 1, [Cd{SSi(OtBu)3}2(μ -bpea) •2CHCl3]n 2 oraz [Cd{SSi(OtBu)3}2(μ -bpey)•C7H8]n 3 otrzymane z użyciem pochodnych bipirydylu [bpea = 1,2-bis(4-pyridyl)etan and bpey = 1,2-bis(4-pyridyl)etylen] zostały zsyntetyzowane i strutkualnie scharakteryzowane przy użyciu rentgenografii strukturalnej XRD. Ich budowa krystaliczna została dodatkowo potwierdzona przy...
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One dimensional coordination polymers generated from Cd(II) tri-tert-butoxysilanethiolates and flexible aliphatic diamines.
PublicationPraca ta dotyczy chemii koordynacyjnej tri-tert-butoksysilanotiolanu kadmu(II) z diaminami alifatycznymi. Reakcja dwucentowego [Cd{SSi(OtBu)3}2]2 z poszczególnymi diaminami pozwala otrzymać pięć nowych obojętnych jednowymiarowych polimerów koordynacyjnych o różnej topologii łańcuchów [Cd{SSi(OtBu)3}2(μ-C4H12N2)(CH3OH)]n (1), [Cd{SSi(OtBu)3}2(μ-C5H14N2)(CH3OH)]n (2) [Cd{SSi(OtBu)3}2(μ-C6H16N2)(CH3OH)]n (3), [Cd{SSi(OtBu)3}2(μ-C7H18N2)]n...
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Superior synergy of g-C3N4/Cd compounds and Al-MOF-derived nanoporous carbon for photocatalytic hydrogen evolution
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Comparison of the coordination geometries of Zn(II) and Cd(II) ions in complexes with water, methanol and bulky aryloxysilanethiolate ligands
PublicationZinc and cadmium complexes containing silanethiolate anions and methanol or water were synthesized and characterized by X-ray diffraction, FT-IR and NMR spectroscopy, and DFT calculations. Contrary to zinc, the cadmium ion utilizes very weak donors to complete its coordination sphere; it forms contacts to phenyl rings of the silanethiolate ligand. Two zinc analogs of the general formula [Zn{SSi(OAr)3}2(L)2] where L = CH3OH (2)...
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Design of a Multidomain IMS/NGN Service Stratum
PublicationThe paper continues our research concerning the Next Generation Network (NGN), which is standardized for delivering multimedia services with strict quality and includes elements of the IP Multimedia Subsystem (IMS). A design algorithm for a multidomain IMS/NGN service stratum is proposed, which calculates the necessary CSCF servers CPU message processing times and link bandwidths with respect to the given maximum values of mean...
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Collective filter evaluation of an FSD filter-based resampling algorithm. [online] W: Online Symposium for Electronics Engineers. Techonline Bedford, Massachusetts, USA. [Dostęp: 15 stycznia**2002]. Dostępny w World Wide Web: http://www.techonline.com/community/ed_resource/feature_article/14917/[6 s. 5 rys.] Badanie algorytmu zmiany szybkości próbkowania realizowanego w oparciu o filtry FSD za pośrednictwem analizy filtru zbiorczego.
PublicationW pracy przedstawiono koncepcję filtru zbiorczego dla potrzeb oceny jakościalgorytmu zmiany szybkości próbkowania realizowanego w oparciu o filtry u-łamkowo-opóźniające (FSD). W przypadku takiego algorytmu przepróbkowania dowyznaczania każdej próbki wyjściowej potrzebny jest filtr FSD o innm opóź-nieniu ułamkowym. Z kolei jakość takiego filtru zależy właśnie od jego opóź-nienia, co stwarza problemy w ocenie jakości samego...
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Enrichment of Bi-Be-Mo-Cd-Pb-Nb-Ga, REEs and Y in the Permian coals of the Huainan Coalfield, Anhui, China
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Freshwater Ulva (Chlorophyta) as a bioaccumulator of selected heavy metals (Cd, Ni and Pb) and alkaline earth metals (Ca and Mg)
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Structural, spectral and magnetic properties of Ni(II), Co(II) and Cd(II) compounds with imidazole derivatives and silanethiolate ligands
PublicationA series of new metal heteroleptic complexes have been obtained in simple reactions of 1-(3-aminopropyl)-imidazole (api) and 1,4-bis(imidazol-1-yl)-butane (bbi) ligands with metal silanethiolates or acetylacetonates. The obtained complexes are the coordination polymers [Ni{SSi(tBuO)3}2(μ-api)]n1, [Co{SSi(tBuO)3}2(μ-api)]n2, [Cd{SSi(tBuO)3}2(μ-api)·2CH3OH]n3, [Cd{SSi(tBuO)3}2(μ-bbi)·CHCl3]n4 and the dimer [Co{SSi(tBuO)3}2(μ-bbi)·3CH3OH]25....
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Binuclear Co(II), Zn(II) and Cd(II) tri-tert-butoxysilanethiolates. Synthesis, crystal structure and spectroscopic studies.
PublicationA series of Co(II), Zn(II) and Cd(II) complexes have been synthesized in reaction of respective metal tri-tert-butoxysilanethiolates with pyrazine 1 and 2 and 1,2-bis(2-pyridyl)ethylene 3–5. All compounds have been characterized by single-crystal X-ray structure determination, elemental analysis, FT-IR and thermogravimetry. Obtained complexes are bimetallic with the formula of [M{SSi(OtBu)3}2(μ-L)]2 and metal ions bridged by N,N′-spacer....
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A high-quality genetic reference database for European commercial fishes reveals substitution fraud of processed Atlantic cod (Gadus morhua) and common sole (Solea solea) at different steps in the Belgian supply chain
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Optimization and Modeling of Cr (VI) Removal from Tannery Wastewater onto Activated Carbon Prepared from Coffee Husk and Sulfuric Acid (H2SO4) as Activating Agent by Using Central Composite Design (CCD)
PublicationThe primary goal of this research is to lower the hexavalent chromium (Cr (VI)) concentration that has occurred from the growth of the tannery industry. As a result, the potential for heavy metal concentration is increasing day by day. Industrial effluent containing Cr (VI) contributes significantly to water pollution. Chromium hexavalent ion (Cr (VI)) in wastewater is extremely hazardous to the environment. It is critical to address...
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Traffic model for evaluation of call processing performance parameters in IMS-based NGN
PublicationIn the modern world requirements for accurate and fast information distribution are becoming more and more important, which creates a strong necessity for appropriate telecommunication network architecture. Proposition of such an architecture is the Next Generation Network (NGN) concept, which in order to guarantee Quality of Service (QoS), should be correctly designed and dimensioned. For this reason proper traffic models must...
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Efficiency of ozonation process with calcium peroxide in removing heavy metals (Pb, Cu, Zn, Ni, Cd) from aqueous solutions
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Facilitated transport of Zn(II), Cd(II) and Pb(II) across polymer inclusion membranes doped with imidazole azocrown ethers
PublicationZbadano transport jonów Pb(II), Cd(II) i Zn(II) przez polimerowe membrany inkluzyjne (PIM) przy użyciu imidazolowych azokoron. Badanie prowadzono dla wodnych roztworów azotanów metali o c(Me)=0,001M i pH=5,0. Polimerowe membrany inkluzyjne otrzymywano z trójoctanu celulozy (nośnik), plastyfikatora i jonoforu (jeden z imidazolowych eterów koronowych z ugrupowaniem azowym). Badane azokorony różniły sięmiejscem podstawienia imidazolu...
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Arginine-, d-arginine-vasopressin, and their inverso analogues in micellar and liposomic models of cell membrane: CD, NMR, and molecular dynamics studies
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Analiza przepływu oleju przez rowek smarowy wzdłużnego łożyska ślizgowego z wykorzystaniem komputerowej dynamiki płynów (CFD) = Analysis of the lubricant flow through the hydrodynamic thrust bearings groove with the use of computational fluid dynamic
PublicationSmarowanie zanurzeniowe jest tradycyjnym sposobem smarowania wzdłużnych łożysk ślizgowych. Jednak rozwiązanie to wykazuje umiarkowaną skuteczność w zapewnieniu optymalnie niskich temperatur w filmie smarowym a ponadto jest przyczyną strat mocy związanych z mieszaniem oleju w obudowie łożyska, co jest szczególnie widoczne w łożyskach szybkoobrotowych. Obecnie wymagania stawiane nowym konstrukcjom łożysk ślizgowych to zwiększanie...
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The distribution of heavy metals and 137 Cs in the central part of the Polish maritime zone (Baltic Sea) – the area selected for wind farm acquisition
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Sensitive Determination of Cd in Small-Volume Samples by Miniaturized Liquid Drop Anode Atmospheric Pressure Glow Discharge Optical Emission Spectrometry
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Sprawozdanie z badań korelacji parametrów geotechnicznych piasków o różnej genezie określonych na podstawie sondowań sondą SD-30.
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Zastosowanie średniej sondy dynamicznej SD-30 do oceny parametrów podłoża gruntowego w rejonie planowanego poszerzenia Półwyspu Helskiego.
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Wykorzystanie kapusty białej (brassica oleracea var. capitata) do fitoekstrakcji metali ciężkich (zn, cd, cu, pb) z gleby*
PublicationGatunki roślin z rodziny Brassicaceae uważane są za przydatne w fitoremediacjimetali ciężkich z gleby. Przeprowadzone badania mają na celu potwierdzenie zasadności wykorzystaniakapusty białej, odmiany 'Kamienna Głowa' do fitoekstrakcji Zn, Cd, Cu, Pb. Poziomwybranych metali badano w glebie oraz liściach i głąbach kapusty uprawianej na tych glebach,pochodzących z upraw wazonowych (Kraków) oraz polowych (Czapielsk). Zawartość metaliciężkich...
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Corncob-supported calcium oxide nanoparticles from hen eggshells for cadmium (Cd-II) removal from aqueous solutions; Synthesis and characterization
PublicationThis study investigated the efficient removal of cadmium ions from aqueous solutions using calcium oxide nanoparticles (CaO NPs) synthesized from waste hen eggshells using a Sol-gel method and supported on corncob bio-adsorbent. The synthesized CaO NPs were characterized using FT-IR, XRD, specific surface area, and TGA. Batch adsorption experiments were conducted to examine the influence of process parameters such as adsorbent...
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Reply to “Enrichment of Bi-Be-Mo-Cd-Pb-Nb-Ga, REEs and Y in the Permian coals of the Huainan Coalfield, Anhui, China: Discussion”
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A comparative study of sequential extraction methods for identification of trace elements fractions (Cr, Ni, Pb, Cd) in urban soils from several parks
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Facilitated transport of Zn(II), Cd(II) and Pb(II) ions trough polymer inclusion membranes with calix[4]-crown-6 derivaties
PublicationBadano transport mieszaniny równomolowych ilości jonów Zn(II), Cd(II) i Pb(II)z wodnej fazy azotanowej (cMe=0,001M) przez polimerowe membrany inkluzyjne(PIM) zawierające pochodne kaliks[4]korony-6 jako nośniki jonów. Badany był wpływ różnych podstawników na wydajność procesu. Selektywność transportu przez membrany zawierające jonofory 4 i 5 malała w kolejności Pb(II), Zn(II), Cd(II), natomiast z jonoforem 3 Pb(II), Zn(II)Cd(II)....
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The Arctic mutation alters helix length and type in the 11–28 β-amyloid peptide monomer—CD, NMR and MD studies in an SDS micelle
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Studies on removal of Zn(II), Cd(II) and Pb(II) ions in polymer inclusion membrane transport with calix[4]-crown-6 derivatives
PublicationZbadano selektywność procesu wydzielania jonów cynku(II), kadmu(II) i ołowiu(II) z wodnych roztworów azotanowych zawierających równomolową mieszaninę tych trzech metali (cMe= 0,01 M) w procesie transportu przez polimerowe membrany inkluzyjne (PIM) przy użyciu w roli przenośników jonów pochodnych kaliks[4]-korony-6. Membrany typu PIM syntezowano z trójoctanu celulozy (nośnik), eteru o?nitrofenylopentylowego (pastyfikator) i pochodnych...
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Exploring novel Cd(ii) complexes with 5-methyl-4-imidazolecarboxaldehyde: synthesis, structure, computational insights, and affinity to DNA through switchSense methodology
PublicationA series of four Cd(II) complexes with 5-methyl-4-imidazolecarboxaldehyde (L) with different inorganic anions within or outside the coordination sphere of general formula: [CdCl2 L2 ] (1), [CdBr2 L 2] (2), [CdI2L 2] (3), and [CdL4 ](PF6 )2 ·3H2 O (4) was synthesized through one-step and two-step reactions, respectively. All complexes were obtained as colorless crystals without the need for recrystallization and exhibited solubi- lity...
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Bioaccumulation of alkaline soil metals (Ca, Mg) and heavy metals (Cd, Ni, Pb) patterns expressed by freshwater species of Ulva (Wielkopolska, Poland)
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Koncept ekologicznie przyjaznego masowca „Gary Muwalt” napędzanego siłą wiatru
PublicationW artykule przeanalizowano możliwości, jakie niesie wykorzystanie siły wiatru we współczesnym transporcie morskim na przykładzie ekologicznego masowca z napędem żaglowym. W tym celu dokonano analiz oporowych przy użyciu metod CFD oraz analizy ekonomicznej na podstawie danych rynkowych. Jest to wstęp do dalszych prac, mających na celu stworzenie nowoczesnej jednostki ograniczającej emisję szkodliwych substancji do atmosfery oraz...