Search
Filters
total: 9256
-
Catalog
- Publications 3943 available results
- Journals 103 available results
- Conferences 2 available results
- People 177 available results
- Inventions 22 available results
- Projects 18 available results
- Laboratories 6 available results
- Research Teams 8 available results
- Research Equipment 40 available results
- e-Learning Courses 1496 available results
- Events 31 available results
- Open Research Data 3410 available results
displaying 1000 best results Help
Search results for: 3-D PRINTING
-
The effect of Ru substitution for Ni on the superconductivity in MgCNi_(3-x)Ru_x
PublicationW pracy prezentowane są pomiary podatności magnetycznej i ciepła właściwego domieszkowanego nadprzewodnika MgCNi_(3-x)Ru_x. Wraz ze wzrostem koncetracji Ru współczynnik Sommerfelda, jak również temperatura krytyczna (T_c) maleją, co stoi w sprzeczności z teoretycznymi oczekiwaniami.
-
An Overview of Treatment Approaches for Octahydro-1, 3, 5, 7-tetranitro-1, 3, 5, 7-tetrazocine (HMX) Explosive in Soil, Groundwater, and Wastewater
PublicationOctahydro-1, 3, 5, 7-tetranitro-1, 3, 5, 7-tetrazocine (HMX) is extensively exploited in the manufacturing of explosives; therefore, a significant level of HMX contamination can be encountered near explosive production plants. For instance, up to 12 ppm HMX concentrations have been observed in the wastewater effluent of a munitions manufacturing facility, while up to 45,000 mg/kg of HMX has been found in a soil sample taken from...
-
Vital and health statistics. Series 3, Analytical studies
Journals -
Error analysis of calculating average d-q current components using Regular Sampling and Park transformation in FOC drives
PublicationIn electric drives using voltage source inverters, motor currents contain ripple component resulting from pulse-width modulated (PWM) voltage. The frequency range of the ripples is much higher than the bandwidth of current control. Therefore the control is performed on the basis of a fundamental current component, i.e. average value with the averaging time being the PWM period. In majority of cases the average current is measured...
-
Zbigniew Kaźmierczyk dr hab.
PeopleProf. Zbigniew Kaźmierczyk, PhD in Literature, associate professor in the Department of History of Literature at the Institute of Polish Language and Literature at the University of Gdańsk. He has displayed the Gnostic – Manichaean dimension of existence in Miłosz’s writings ('The Work of Demiurge', 2011) by applying the language of access to apocrypha of the religion of gnosis. He has gathered linguistic, historic, religious,...
-
Ekspertyza stanu technicznego zasilaczy UPS NTH 3 x 160 kVA
PublicationEkspertyza zawiera analizę przyczyn i zakres uszkodzeń trójfazowych zasilaczy UPS typu NTH o mocy 3 x 160 kVA
-
A New Expression System Based on Psychrotolerant Debaryomyces macquariensis Yeast and Its Application to the Production of Cold-Active β-D-Galactosidase from Paracoccus sp. 32d
PublicationYeasts provide attractive host/vector systems for heterologous gene expression. The currently used yeast-based expression platforms include mesophilic and thermotolerant species. A eukaryotic expression system working at low temperatures could be particularly useful for the production of thermolabile proteins and proteins that tend to form insoluble aggregates. For this purpose, an expression system based on an Antarctic psychrotolerant...
-
Influence of charge transfer state on Eu 3+ luminescence in LaAlO 3 , by high pressure spectroscopy
Publication -
Type III Responses to Transient Inputs in Hybrid Nonlinear Neuron Models
PublicationExperimental characterization of neuronal dynamics involves recording both of spontaneous activity patterns and of responses to transient and sustained inputs. While much theoretical attention has been devoted to the spontaneous activity of neurons, less is known about the dynamic mechanisms shaping their responses to transient inputs, although these bear significant physiological relevance. Here, we study responses to transient...
-
Giant Reed (Arundo donax L.) Fiber Extraction and Characterization for Its Use in Polymer Composites
PublicationThis work describes an extraction method for giant reed fibers from stems and leaves based on chemical soaking and crushing through a rolling mill. Obtained fibers, together with the shredded plant (stems + leaves), are characterized in terms of chemical composition, thermal stability, morphology, and crystallinity. Mechanical properties of fibers have also been assessed (single fiber tensile tests). The results show that the proposed...
-
Bio and slide bearings: their lubrication by non-Newtonian fluids and application in non conventional systems. Vol.3. Tribology processes for cells human joints and micro-bearings
PublicationW niniejszej monografii przedstawiony został aktualny pogląd dotyczący procesu smarowania stawów człowieka od strony mechaniki, a szczególnie hydromechaniki i metod matematycznych. Wyznaczono pola prędkości przepływu lepkiej, odżywczej nie Newtonowskiej cieczy biologicznej, a także powstające siły tarcia w trakcie ruchu cieczy w warstwie granicznej wokoło współpracujących powierzchni. Dodatkowo rozpatrywano przepływy potencjalne...
-
A comprehensive lipidomic analysis of oilseeds using LC-Q-TOF-MS and dispersive micro-solid phase (D-μ-SPE) extraction techniques
PublicationGrowing public health awareness increased the demand for natural products with positive health benefits. Vegetable oils containing omega-3 fatty acids (FA) such as alpha-linolenic acid (ALA) has been proposed as a possible source of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). In this work, a comprehensive lipidome analysis and comparison of seven oilseeds, including flaxseed, chia, hemp, black cumin, white sesame,...
-
Homoclinic orbits for an almost periodically forced singular Newtonian system in R^3
Publication. This work uses a variational approach to establish the existence of at least two homoclinic solutions for a family of singular Newtonian systems in R^3 which are subjected to almost periodic forcing in time variable
-
Ibrutinib versus temsirolimus: 3-year follow-up of patients with previously treated mantle cell lymphoma from the phase 3, international, randomized, open-label RAY study
Publication -
Hydrophobic derivatives of 2-amino-2-deoxy-D-glucitol-6-phosphate: a newtype of D-glucosamine-6-phosphate synthase inhibitors with antifungal action.
PublicationDokonano syntezy szeregu N-acylowych i estrowych pochodnych 2-amino-2-deok-sy-glucitolo-6-fosforanu (ADGP) i zbadano ich aktywność przeciwgrzybową oraz wobec enzymów zaangażowanych we wczesne etapy biosyntezy chityny w komórkach grzybów. Wszystkie badane pochodne okazały się słabszymi inhibitorami enzymu syntezy GlcN-6-P aniżeli ADGP, ale niektóre z nich wykazywały znacznie wyższą aktywność przeciwgrzybową niż związek macierzysty....
-
Recycled brick aggregates in one-part alkali-activated materials: Impact on 3D printing performance and material properties
Publication -
Improving the performance of the 3-dB microstrip hybrid-ring based power dividers
PublicationW pracy przedstawiono wyniki teoretycznych i eksperymentalnych badań zintegrowanych układów mikropaskowych 3-dB dzielników mocy wykorzystującch strukturę pierścieniową. Zaproponowano modyfikację geometrii układu prowadzącą do poprawy jego charakterystyk transmisyjnych.
-
3-Monochloropropane-1,2-diol in Infant Foods and Human Breast Milk: Determination by GC-MS
Publication3-Monochloropropane-1,2-diol is one of the food borne contaminants called chloropropanols. Over the last decade plenty of analytical methods was developed in order to determine 3-monochloropropane-1,2-diol in its free and bound form in various foodstuffs with the use of GC-FID, GC-ECD, LC-TOFMS and finally GC-MS, which is now widely used in laboratories. The aim of this research was the determination of 3-monochloropropane--1,2-diol...
-
The structure of novel polyurethanes containing synthetic poly[(R,S)-3-hydroxybutyrate]
PublicationThe aim of this study was to estimate the structure of new polyurethanes with the potential to be used in medicine. Atactic poly[(R,S)-3-hydroxybutyrate], obtained via a ring-opening polymerization, and polycaprolactonediol or polyoxytetramethylenediol were used to built the soft segments. 4,4'-methylene dicyclohexyl diisocyanate and 1,4-butanediol were the components to form hard segments. Polyurethanes with low-molecular weight...
-
A Note on a Problem Posed by D. E. Knuth on a Satisfiability Recurrence
PublicationWe resolve a conjecture proposed by D.E. Knuth concerning a recurrence arising in the satisfiability problem. Knuth's recurrence resembles recurrences arising in the analysis of tries, in particular PATRICIA tries, and asymmetric leader election. We solve Knuth's recurrence exactly and asymptotically, using analytic techniques such as the Mellin transform and analytic depoissonization.
-
Vitamin D and its analogs as anticancer and anti-inflammatory agents
Publication -
Buliding organizational knowledge in software and systems R&D organization
PublicationOmówiono specyficzne dla firm software podejście do tworzenia wiedzy organizacyjnej. Zaproponowano narzędzia pomocne w tworzeniu takiej wiedzy.
-
Dwufazowy, termosyfonowy wymiennik ciepła - R&D. Cz. 1
PublicationPrzedstawiono podział i zasadę działania termosyfonów dwufazowych. Wyróżniono termosyfony rurowe, pętlowe i rurowo-pętlowe. Podano również przykłady termosyfonowych wymienników ciepła.
-
Vitamin D receptor gene polymorphisms in Alzheimer's disease patients
Publication -
Mitochondrial D-loop informative SNPs in identification of dog’s breed
Publication -
Necessary conditions for optimal control of general N-D model
Publication -
Higginsianins D and E, Cytotoxic Diterpenoids Produced by Colletotrichum higginsianum
Publication -
Cykl P-D-C-A w ciągłym doskonaleniu przedsiębiorstw
PublicationW niniejszym opracowaniu autor poddał analizie doskonalenie jakości z uwazględnieiem ciągłego poszukiwania i wdrażania form, metod, technik pozwalającyh przedsiębiorstwom udoskonalić poszczególne obszary funkcjonowania. Autor omówił poszczgólne składowe koncepcji PDCA oraz odniósł się do korzyści jakie mogą uzyskać przedsiębiorstwa doskonalące jakość w sposób ciągły.
-
Dwufazowy, termosyfonowy wymiennik ciepła - R&D. Część 2
PublicationPrzedstawiono konstrukcję dwufazowego, termosyfonowego wymiennika ciepła (DTWC), która jest chroniona patentem. Zaprezentowano wybrane wyniki badań cieplnych DTWC, m.in. wpływ rodzaju rurek użytych do budowy pęczków rur parownika (gładkie, karbowane i z powłoka porowatą), na uzyskiwane współczynniki przejmowania ciepła. Zaproponowano algorytm do szacowania strumienia ciepła przenoszonego w DTWC.
-
Thermogravimetric analysis (TGA) of the SrxTi0.30Fe0.70O3-d materials
Open Research DataThis dataset contains results of thermogravimetric analysis (TGA) fot SrxTi0.30Fe0.70O3-d materials (x=0.90, 0.95, 1.00 and 1.05). The TGA experiments were carried out using a microbalance (CI Precision MK5) in the temperature range between 900 °C and 200 °C. During the whole measurement procedure, air was fed to the furnace chamber at a flow rate of...
-
D. Zalewska 11, Inżynieria D, I st, 2 s 2023/24l
e-Learning Courses -
Synthesis of 3-Carbamoyl b-Lactams via Manganese(III)-Promoted Cyclization of N-Alkenylmalonamides
PublicationManganese(III)-promoted cyclization of N-alkenylmalonamides (¼N-alkenylpropanediamides) gave 3-(aryl/(alkylamino)carbonyl) b-lactams as well as 3-(aryl/(alkylamino)thiocarbonyl) b-lactams. The relative configuration of the obtained products was unambiguously determined by X-ray crystallography. The proposed method is very useful for the one-pot synthesis of a number of 3-(aryl/ (alkylamino)carbonyl) b-lactams, especially those...
-
Simple and novel synthesis of 3-(thio)phosphoryl-β-lactams by radical cyclization
PublicationRadical cyclization of phosphono-acetenamides promoted by manganese(III) acetate leads exclusively to the formation of 3-phosphoryl-β-lactams. The thiophosphoryl analogues were also prepared using this method. In particular, the presented protocol does not require the use of noble metals, while comparable methods do.
-
Cobalt(II) tri-tert-butoxysialanethiolates.Synthesis, properties, crystal and molecular structures of [Co{SSi(OtBu)3}2(L)] and[Co{SSi(OtBu)3}2(L)2] type complexes with monodentate nitrogen ligands.
PublicationThe title heteroleptic neutral cobalt(II) tri-tert-butoxysilanethiolate complexes with monodentate nitrogen bases (L) as additional ligands have been prepared by the reactions of [Co{μ-SSi(OtBu)3}{SSi(OtBu)3}(NH3)]2 (1) with respective bases. For pyridine both types have been prepared...
-
Mapping the Transglycosylation Relevant Sites of Cold-Adapted β-D-Galactosidase from Arthrobacter sp. 32cB
PublicationB-Galactosidase from Arthrobacter sp. 32cB (ArthbetaDG) is a cold-adapted enzyme able to catalyze hydrolysis of beta-D-galactosides and transglycosylation reaction, where galactosyl moiety is being transferred onto an acceptor larger than a water molecule. Mutants of ArthbetaDG D207A and E517Q were designed to determine the significance of specific residues and to enable formation of complexes with lactulose and sucrose and to...
-
The level of Knowledge and use of tax exemptions for R&D activities
Open Research DataThe following research data contains the answers of 259 entrepreneurs to questions regarding tax reliefs and exemptions for research and development activities. As part of the study answers to the following questions were obtained:Have you ever used the tax relief for new technologies / R&D?Has your company acquired a license / software (intangible...
-
Knowledge and level of use of tax exemptions for R&D activities
Open Research DataThe research results contain answers to questions about the level of knowledge and skills in using concessions and exemptions for research and development (R&D) activities in Poland.
-
NIR to visible upconversion in double – clad optical fiber co-doped with Yb^3+/Ho^3+
Publication -
Pressure evolution of luminescence in Sr Ba1−(NbO2)3:Pr3+ (x=1/2 and 1/3)
Publication -
Neutral point balancing technique for 3-level neutral point clamped converter with servo system
PublicationNeutral point voltage drift compensation technique in 3-level NPC multilevel converter and servo system is described in the paper. Analytical expressions are obtained for power subsystem elements parameters of servo drive system. Simulation of servo system, based on PMSM motor with 3-level NPC converter is considered.
-
REVUE FRANCAISE D ALLERGOLOGIE ET D IMMUNOLOGIE CLINIQUE
Journals -
Badania symulacyjne samowzbudnych drgań wywołanych tarciem modelu tribometru PT-3
PublicationTarcie w pewnych warunkach moze byc źródlem drgań samowzbudnych, które sa przyczyną wielu zjawisk zachodzących w układach mechanicznych. Przykładem takiego układu jest tribometr PT-3 będący uniwersalną maszyną slużącą do badania tarcia i zużycia. W modelu tribometru wyodrębniono pięć podukładów cześciowych: podukład napędu, podukład przekładni pasowej, podukład wrzeciona, podukład modelu tarcia oraz podukład nurnika. Tarcie opisano...
-
Thermodynamic study of binary mixtures of 2-propanol with ionic liquids, 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium trifluoromethanesulfonate and triethylhexylammonium bis(trifluoromethylsulfonyl)imide
PublicationIn this work, densities, speeds of sound, refractive indices and viscosities of three binary mixtures containing the ionic liquids 1-hexyl-3-methylimidazolium bis(trifluoromethyl-sulfonyl)imide, 1-hexyl-3-methylimidazolium trifluoromethanesulfonate and triethylhexyl-ammonium bis(trifluoromethylsulfonyl)imide, mixed with 2-propanol at wide temperature and composition ranges at atmospheric pressure have been measured. From these...
-
The essence of marine and coastal space – an interdisciplinary perspective
PublicationSea space has been undergoing a profound transformation. Although it retains its inspirational function in arts, literature and philosophy, it has been gaining new anthropogenic dimensions in eco-nomics and urban planning as a source of satisfying human needs i.e. the provision of harmony, beauty, off-shore energy, and biotech substances. Therefore, in this paper marine space is analyzed from a mul-tidimensional perspective of...
-
Chemopreventive activity of bioactive fungal fractions isolated from milk-supplemented cultures of Cerrena unicolor and Pycnoporus sanguineus on colon cancer cells
Publication -
Kompleksy [CoCl(S2CNR2)(PR'3)] - synteza i właściwości
PublicationDitiokarbamianiany metali są związkami o znaczeniu przemysłowym, ale wciąż stanowią obiekt badań podstawowych. Właściwości tego typu kompleksów można korzystnie modyfikować stosując różnorodne dodatkowe ligandy, w tym P-donorowe. Stosunkowo dobrze poznano budowę układów [MCl(S2CNR2)(PR'3)] zwłaszcza dla M=Ni, gdzie dane strukturalne jednoznacznie pokazują płaską kwadratową geometrię rdzenia NiClS2P tworzących się kompleksów. Dla...
-
Kompleksy [CoCl(S2CNR2)(PR'3)] - synteza i właściwości
PublicationDitiokarbamianiany metali są związkami o znaczeniu przemysłowym, ale wciąż stanowią obiekt badań podstawowych. Właściwości tego typu kompleksów można korzystnie modyfikować stosując różnorodne dodatkowe ligandy, w tym P-donorowe. Stosunkowo dobrze poznano budowę układów [MCl(S2CNR2)(PR'3)] zwłaszcza dla M=Ni, gdzie dane strukturalne jednoznacznie pokazują płaską kwadratową geometrię rdzenia NiClS2P tworzących się kompleksów. Dla...
-
[Rozdział] 3. Jakość wyników analitycznych
PublicationPrzedstawiono charakterystykę systemu zapewnienia jakości pomiaru analitycznego. Podano klasyfikację współczesnych metod analitycznych. Opisano i scharakteryzowano technikę spektrometrii mas rozcieńczenia izotopowego jako przykład metody pierwotnej.
-
Wolność w sztuce. 3 Pokolenia
PublicationWystawa zbiorowa
-
Anthra[1,2-d][1,2,3]triazine-4,7,12(3H)-triones as a New Class of Antistaphylococcal Agents: Synthesis and Biological Evaluation
PublicationThe development and spread of resistance of human pathogenic bacteria to the action of commonly used antibacterial drugs is one of the key problems in modern medicine. One of the especially dangerous and easily developing antibiotic resistant bacterial species is Staphylococcus aureus. Anthra[1,2-d][1,2,3]triazine-4,7,12(3H)-triones 22–38 have been developed as novel effective antistaphylococcal agents. These compounds have been...