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  • intercalation  (2)
  • *Cognition  (1)
  • CYBERNETICS
  • 1985-1989  (4)
  • 1989  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 7 (1989), S. 301-308 
    ISSN: 1573-1111
    Keywords: α-Tin(IV) hydrogen phosphate ; intercalation ; surface modification ; monomers ; trans-N,N′-diethyl-2-butene-1,4-diamine ; 4-vinylpyridine ; tetraethylenepentamine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Monomers which contain unsaturated linkages and amine groups have been intercalated to form either mono- or bi-layers. The monomertrans-N,N′-diethyl-2-butene-1,4-diamine (NNBD) has been intercalated into α-tin(IV) hydrogen phosphate. The guest molecule, NNBD, forms a monolayer (d 001 = 1.35 nm) in which the amine groups are paired to protons on opposite faces of the phosphate layers. The resultant compound has the formula Sn(C8H18N2)0.73(HPO4)2·H2O indicating that NNBD does not cover a large proportion of the available protons. 4-vinylpyridine slowly forms an intercalate in which the host molecule forms a bilayer (d 001 = 1.56 nn). However, with 4-vinylpyridine there is surface modification in preference to intercalation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 7 (1989), S. 337-347 
    ISSN: 1573-1111
    Keywords: Ion exchange ; lamellar phosphates ; intercalation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract H+/M+ (M = Li, Cs) ion exchange inγ-titanium phosphate (γ-TIP) at 25°C and under static conditions has been studied. Titration and hydrolysis curves and the exchange isotherms were determined. The substitution was followed by X-ray diffraction. Direct calorimetric measurements were carried out at different degrees of conversion and the variation of the exchange enthalpy was obtained. The shape of the calorimetric curves is discussed. The results are compared to the values of ΔH 0 obtained from titration data.
    Type of Medium: Electronic Resource
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  • 3
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1989-05-26
    Description: To function effectively, individuals must voluntarily postpone immediate gratification and persist in goal-directed behavior for the sake of later outcomes. The present research program analyzed the nature of this type of future-oriented self-control and the psychological processes that underlie it. Enduring individual differences in self-control were found as early as the preschool years. Those 4-year-old children who delayed gratification longer in certain laboratory situations developed into more cognitively and socially competent adolescents, achieving higher scholastic performance and coping better with frustration and stress. Experiments in the same research program also identified specific cognitive and attentional processes that allow effective self-regulation early in the course of development. The experimental results, in turn, specified the particular types of preschool delay situations diagnostic for predicting aspects of cognitive and social competence later in life.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mischel, W -- Shoda, Y -- Rodriguez, M I -- New York, N.Y. -- Science. 1989 May 26;244(4907):933-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, Columbia University, New York 10027〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2658056" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Psychological ; Attention ; Child ; *Child Development ; Child, Preschool ; *Cognition ; Female ; *Frustration ; Humans ; *Individuality ; Male ; Reward ; Social Adjustment
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2011-08-19
    Description: Recursive forward dynamics algorithms are developed and presented for an arbitrary number of robot arms moving a commonly held object. The multiarm forward dynamics problem is to find the angular accelerations at the joints and the contact forces that the arms impart to the task object. The problem also involves finding the acceleration of this object. The multiarm forward dynamics solutions provide a thorough physical and mathematical understanding of the way several arms behave in response to a set of applied joint moments. Such an understanding simplifies and guides the subsequent control design and experimentation process. The forward dynamics algorithms also provide the necessary analytical foundation for conducting analysis and simulation studies. The multiarm algorithms are based on the filtering and smoothing approach recently advanced for single-arm dynamics, and they can be built up modularly from the single-arm algorithms. The algorithms compute recursively the joint angle accelerations, the contact forces, and the task-object accelerations. Algorithms are also developed to evaluate in closed form the linear transformations from the active joint moments to the joint angle accelerations, to the task object accelerations, and to the task-object contact forces. A possible computing architecture is presented as a precursor to a more complete investigation of the computational performance of the dynamics algorithms.
    Keywords: CYBERNETICS
    Type: IEEE Transactions on Robotics and Automation (ISSN 1042-296X); 5; 510-521
    Format: text
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