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31.
S. S. Kutateladze 《Siberian Mathematical Journal》2009,50(5):887-897
Under study is the new class of geometrical extremal problems in which it is required to achieve the best result in the presence
of conflicting goals; e.g., given the surface area of a convex body $
\mathfrak{x}
$
\mathfrak{x}
, we try to maximize the volume of $
\mathfrak{x}
$
\mathfrak{x}
and minimize the width of $
\mathfrak{x}
$
\mathfrak{x}
simultaneously. These problems are addressed along the lines of multiple criteria decision making. We describe the Pareto-optimal
solutions of isoperimetric-type vector optimization problems on using the techniques of the space of convex sets, linear majorization,
and mixed volumes. 相似文献
32.
The problem of heat transfer in a turbulent asymptotic boundary layer with suction is solved in the framework of the monoharmonic model. The flow is one dimensional on the average, which is why it is chosen for investigation. The theoretically determined mean and pulsation characteristics of the flow, in particular the turbulent Prandtl number, agree with the experimental results for a boundary layer.Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 1, pp. 74–79, January–February, 1981. 相似文献
33.
Xu Y Lee SA Kutateladze TG Sbrissa D Shisheva A Prestwich GD 《Journal of the American Chemical Society》2006,128(3):885-897
The remodeling of phosphatidylinositol polyphosphates in cellular membranes by phosphatases and kinases orchestrates the signaling by these lipids in space and time. To provide chemical tools to study the changes in cell physiology mediated by these lipids, three new metabolically stabilized (ms) analogues of phosphatidylinositol-3-phosphate (PtdIns(3)P) were synthesized. We describe herein the total asymmetric synthesis of 3-methylphosphonate, 3-(monofluoromethyl)phosphonate and 3-phosphorothioate analogues of PtdIns(3)P. From differentially protected D-myo-inositol key intermediates, a versatile phosphoramidite reagent was employed in the synthesis of PtdIns(3)P analogues with diacylglyceryl moieties containing dioleoyl, dipalmitoyl, and dibutyryl chains. In addition, we introduce a new phosphorylation reagent, (monofluoromethyl)phosphonyl chloride, which has general applications for the preparation of "pKa-matched" monofluorophosphonates. These ms-PtdIns(3)P analogues exhibited reduced binding activities with 15N-labeled FYVE and PX domains, as significant 1H and 15N chemical shift changes in the FYVE domain were induced by titrating ms-PtdIns(3)P analogues into membrane-mimetic dodecylphosphocholine micelles. In addition, the PtdIns(3)P analogues with dioleoyl and dipalmitoyl chains were substrates for the 5-kinase enzyme PIKfyve; the corresponding phosphorylated ms-PI(3,5)P2 products were detected by radio-TLC analysis. 相似文献
34.
S. S. Kutateladze 《Journal of Applied and Industrial Mathematics》2011,5(2):155-162
This is a short overview of the influence of the mathematicians of the Enlightenment on the creative contribution of Mikhaĭlo Lomonosov. 相似文献
35.
S. S. Kutateladze 《Siberian Mathematical Journal》2012,53(1):1-12
This is a short overview of the life of Leonid Kantorovich and his contribution to the formation of the modern outlook on the interaction between mathematics and economics. 相似文献
36.
S. S. Kutateladze 《Journal of Applied and Industrial Mathematics》2012,6(3):332-338
This is an overview of the basic tools of nonsmooth analysis which are grounded on nonstandard models of set theory. By way of illustration we give a criterion for an infinitesimally optimal path of a general discrete dynamic system. 相似文献
37.
38.
S. S. Kutateladze 《Siberian Mathematical Journal》2011,52(4):569-570
This is a short tribute to Aleksandr A. Borovkov on the occasion of his 80th birthday. 相似文献
39.
The concept of infinitesimal optimality is specified for discrete dynamic extremal problems. 相似文献
40.
A. G. Kutateladze E. K. Beloglazkina N. V. Zyk N. S. Zefirov 《Russian Chemical Bulletin》1992,41(5):960-961
A representative of a previously unknown class of S-sulfonylsulfene halides — S-tosylsulfene chloride (1) — was prepared for the first time. It was shown that the reaction of sulfene chloride1 with cyclohexene yieldstrans-2-chlorocyclohexyl-p-toluene thiosulfonate, and the reaction with 1-hexene yields a mixture of 2-chlorohexyl-p-toluene thiosulfonate and 1-chloro-2-hexyl-p-toluene thiosulfonate.M. V. Lomonosov Moscow State University, 119899 Moscow. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 5, pp. 1217–1218, May, 1992. 相似文献