Results 41 to 50 of about 1,087 (201)
The development of an effective nickel‐catalyzed carbonylative cross coupling of redox‐activated alkyl carboxylic acids and aryl boronic acids is presented. A wide variety of alkyl aryl ketones is obtained in good yields, and the chemistry is easily applicable to stable and radiocarbon isotope labeling.
Kim S. Mühlfenzl +9 more
wiley +2 more sources
APPLICATION OF THE TABLECTIVE PROCESSOR WHILE SOLVING THE OPTIMIZATION PROBLEMS [PDF]
The article discusses methods for solving optimization problems with the use of table processor tools — «Solution search»and «Script manager». Solutions of several examples of linear and integer optimization are presented.
Kudrinskaya O. V.
doaj +1 more source
FOR THE UPCOMING 300th ANNIVERSARY OF RUSSIAN GRAVIMETRY
In early May 1728 Louis de l'Isle de la Croyère, the extraordinary academician of the Academy of Sciences and Arts in St. Petersburg, carried out in Arkhangelsk one of the first in the world and the first in the Russian Empire measurement of gravity.
Блох Ю.И.
doaj +1 more source
STUDY POINTS OF REST HEREDITARITY DYNAMIC SYSTEMS VAN DER POL-DUFFING
Using numerical modeling, oscillograms and phase trajectories were constructed to study the limit cycles of a van der Pol Duffing nonlinear oscillatory system with a power memory. The simulation results showed that in the absence of a power memory (α = 2,
Е. R. Novikova, R. I. Parovik
doaj +1 more source
PROGRAM GENERATOR PROCESSES INDUCED BY NONLINEAR DYNAMIC SYSTEM WITH IMPULS NOISES [PDF]
The article considers nonlinear dynamic systems with impulse perturbation. The described method of generation of impulse random processes on a computer. On the example of the Lorenz system are considered a software module.
Kazakov E. A.
doaj +1 more source
Occidental transept in Romanesque cathedral of Saints Vitus, Wenceslaus and Adalbert at the Prague Castle [PDF]
The Romanesque Cathedral of Saints Vitus, Wenceslaus and Adalbert in Prague was erected as a double-chancel basilica with western transept. Occidental transverse nave and two choirs together form an intrinsic and distinctive feature of this basilica that
Oles, Kamila
core +1 more source
Определяются критерии связности сейсмических событий по пространственному, временному, энергетическому масштабам. Обсуждается вопрос о критерии, учитывающем направленность сейсмического процесса.
Popova, A.V. +2 more
doaj +1 more source
DEVELOPMENT OF A MATHEMATICAL MODEL OF AUTOMATIC KNOWLEDGE EXTRACTION FOR A HYBRID QUESTION-ANSWER SYSTEM [PDF]
The paper proposes and implements, in the form of a mathematical model and software package, the concept of using value coefficients, for ranging answers in universal hybrid question-answer systems, which will improve the efficiency of their work.
Valchuk A. S.
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ABSTRACT This paper examines the daily experiences of Jua Kali women entrepreneurs in Western Kenya, unpacking how gendered power relations are enacted within informal marketplaces and how women entrepreneurs mobilize agency within these structurally and institutionally constrained contexts.
Tabitha Sindani +3 more
wiley +1 more source
HARDWARE AND SOFTWARE COMPLEX OF AUGMENTATION COMMUNICATION SYSTEM ON THE BASIS OF EYETRACKING TECHNOLOGYS [PDF]
The paper presents a description of the developed APC and implemented the algorithm of EyeTracking (based on convolutional neural networks and morphological analysis), which allows people suffering from motor dysfunction and neuroparalytic syndromes to ...
Yu. V. Grushko
doaj +1 more source

