Wyniki wyszukiwania dla: OBR%C3%93T%20COSSERAT

• Total cross sections for electron scattering with some C3 hydrocarbons

  Publikacja

  • C. Szmytkowski
  • S. Kwitnewski

  - JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS - Rok 2002

  Przedstawiono absolutne całkowite przekroje czynne na rozpraszanie elektronów dla dwóch izomerów C3H4 oraz C3H8 w zakresie energii 0.5-37- eV. Przedyskutowano efekt izomeryczny oraz wpływ krotności wiązania C-C.

• General, Mild, and Metal-Free Functionalization of Indole and Its Derivatives Through Direct C3-Selenylation

  Publikacja

  • A. Hałuszczuk
  • N. Babul
  • Ł. Nierzwicki
  • W. Przychodzeń

  - EUROPEAN JOURNAL OF ORGANIC CHEMISTRY - Rok 2019

  A very mild method for the introduction of functionalized alkylselenyl group at C-3 position of the indole ring was developed. The proposed procedure consists of an electrophilic substitution of indole and its derivatives with bis(O,O-diisopropoxyphosphorothioyl) diselenide and subsequent cleavage of the P–Se bond with tetrabutylammonium fluoride in the presence of various electrophilic reagents. This method can be successfully...

  Pełny tekst do pobrania w portalu

• OBM Genetics

  Czasopisma

  eISSN: 2577-5790

• OBM Transplantation

  Czasopisma

  eISSN: 2577-5820

• OBM Neurobiology

  Czasopisma

  eISSN: 2573-4407

• Protect our right to light

  Publikacja

  • K. Zielińska-Dąbkowska
  • K. Xavia

  - NATURE - Rok 2019

  “The struggle for light” is how the Swiss architect Le Corbusier described the history of architecture in 1935. Today, with the skies crowded out by buildings in modern cities, those words should ring in the ears of policymakers and planners. Skyscraper construction is booming. China is the leader, last year completing 88 of the 143 buildings around the world that are taller than 200 metres (see ‘Vertical growth’). As the nation’s...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Elastoplastic nonlinear FEM analysis of FGM shells of Cosserat type

  Publikacja

  • S. Burzyński
  • J. Chróścielewski
  • K. Daszkiewicz
  • W. Witkowski

  - COMPOSITES PART B-ENGINEERING - Rok 2018

  The paper is a continuation of [1] where the formulation of the elastic constitutive law for functionally graded materials (FGM) on the grounds of nonlinear 6-parameter shell theory with the 6th parameter (the drilling degree of freedom) was presented. Here the formulation is extended to the elasto-plastic range. The material law is based on Cosserat plasticity and employs the well-known Tamura-Tomota-Ozawa (TTO) [2] mixture...

  Pełny tekst do pobrania w portalu

• Elastoplastic law of Cosserat type in shell theory with drilling rotation

  Publikacja

  • S. Burzyński
  • J. Chróścielewski
  • W. Witkowski

  - MATHEMATICS AND MECHANICS OF SOLIDS - Rok 2015

  Within the framework of six-parameter non-linear shell theory, with strain measures of the Cosserat type, we develop small-strain J2-type elastoplastic constitutive relations. The relations are obtained from the Cosserat plane stress relations assumed in each shell layer, by through-the-thickness integration employing the first-order shear theory. The formulation allows for unlimited translations and rotations. The constitutive...

  Pełny tekst do pobrania w serwisie zewnętrznym

• On Non-holonomic Boundary Conditions within the Nonlinear Cosserat Continuum

  Publikacja

  • V. Eremeev

  - Rok 2019

  Within the framework of the nonlinear micropolar elastic continuum we discuss non-holonomic kinematic boundary conditions. By non-holonomic boundary conditions we mean linear relations between virtual displacements and virtual rotations given on the boundary. Such boundary conditions can be used for modelling of complex material interactions in the vicinity of the boundaries and interfaces.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Morphology and mechanical properties of polyamide/clay nanocomposites toughened with NBR/NBR-g-GMA: A comparative study

  Publikacja

  • A. E. Jahromi
  • H. R. E. Jahromi
  • F. Hemmati
  • M. Saeb
  • V. Goodarzi
  • K. Formela

  - COMPOSITES PART B-ENGINEERING - Rok 2016

  This work highlights the importance of nanoclay dispersion state in the nanocomposites containing polyamide 6 (PA6), nanoclay and elastomers as well as clay localization at the interface of thermoplastic/elastomer. Morphology and mechanical properties of a series of nanocomposites containing acrylonitrile butadiene rubber (NBR), glycidyl methacrylate-grafted NBR (NBR-g-GMA), and combined NBR/NBR-g-GMA were compared and discussed...

  Pełny tekst do pobrania w serwisie zewnętrznym