Доклады Академии наук Республики Таджикистан, том 58, №4, 2015 г. |
File | Article title and abstract | Pages |
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Download | Rajabov N., Saidov S. | 267-272 | Integral representation manifold solution for one class generalized Volterra type Integral equation with two boundary singular points |
In this work investigation one class general Volterra type Integral Equation with two boundary logarithmic and singular points was made. In depend from roots corresponding characteristic equation, solution this integral equation can contain two arbitrary constants, one constant and may be having unique solution. |
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Key words: сингулярное ядро; интегральное уравнение с граничными сингулярными точками; логарифмические особенности; general Volterra type Integral Equation; boundary singular points; logarithmic boundary singularity. | |
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Download | Mirzorakhimov Sh.Kh. | 273-278 | The short double amount of values of Dirichlet characters by shifted product of two numbers |
If non-trivial estimate double sums is found of the form where - primitive Dirichlet characters modulo and the number is cubefree. |
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Key words: характеры Дирихле; короткие двойные суммы; сдвинутые простые; тригонометрические суммы с простыми числами; Dirichlet character; double sum Dirichlet characters; of short character sums; trigonometric sums with prime numbers. | |
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Download | Khorazmshoev S.S. | 279-284 | Sharp inequalities Jackson-Stechkin type and the values of widths of classes of functions in
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In this paper we calculate the exact values of the all known widths for some classes of functions defined by generalized modulus continuity of the m- th order Ω
, r -the derivatives which are dominated by functions satisfying certain restrictions. |
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Key words: наилучшее полиномиальное приближение; обобщённый модуль непрерывности m-го порядка; мажоранта; n-поперечники; best polynomial approximation; generalized modulus of continuity of m-th order; majorant; n-widths. | |
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Download | Safarov D.Kh., Mirzoev S.S. | 285-290 | Presentation of the General solution of multi-dimensional non-classical systems of equations of higher order |
We find representations of the general solution of multi-dimensional non-classical systems of equations of higher order having a family of multiple real characteristics. |
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Key words: неклассические системы уравнений; бигармонические функции; полигармонические функции; представление общего решения; семейство вещественных характеристик; non-classical system of equations; representation of the general solution; biharmonic functions; polyharmonic functions; family of real characteristics. | |
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Download | Usmanov Z.D. | 291-296 | On a water-division of two transboundary rivers between three countries |
Different alternative versions to water-division for three states are analyzed when two of them are interested in outputting electricity and the third one needs water utilization for irrigation. |
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Key words: трансграничная река; вододеление; моделирование; transboundary river; water-division; modeling. | |
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Download | Abdulloev S.Kh., Minikulov N.Kh., Khamroev U.Kh., Ibrohimov A.A., Buriev A.M., Asoev Kh.G. | 297-301 | Photometry of asteroid (24533) Kokhirova |
The photometric observations of asteroid (24533) Kokhirova were carried out in August 2014. The rotation period of asteroid was defined which is equal to 14.4 hours. It is expected that geometric figure of the asteroid is not spherical; one part of area figure of asteroid differs from other part by 1.5 times. To clarify the rotation period and other physical parameters is necessary to conduct additional observations of asteroid during the next encounters with the Earth in 2018 and 2023. |
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Key words: астероид; фотометрия; кривая блеска; период вращения; asteroid; photometry; light curve; period of rotation. | |
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Download | Muminov Kh.Kh., Shokirov F.Sh. | 302-308 | Dynamics of interaction of topological vortex with domain wall in (2+1)-dimensional non-linear sigma-model |
By numerical simulation the dynamics of interaction of localized (topological) vortices with 180-degree Neel type domain walls in (2+1) dimensional O(3) vectorial nonlinear sigma model is investigated. The decay of the topological vortices onto the localized perturbations with half topological charge, moving along the plane of the domain wall is revealed. |
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Key words: двумерный топологический солитон; неёловская доменная стенка; О(3) векторная нелинейная сигма-модель; динамика взаимодействий; two-dimensional topological soliton; Neel-type domain wall; О(3) nonlinear vectorial sigma-model; dynamics of interaction. | |
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Download | Yusupov I.Kh., Bahdavlatov A.D., Alidodov T.M., Umarov N., Marupov R. | 309-315 | Analyzing molecular structure of a medicinal plant clover
method spin labels |
Spin label method to study the effect of environmental conditions and the level of natural background radiation locus on the stability of the molecular mobility nitrooksil radical introduced into the matrix components (stem, leaf, root) medical melilotus. It is shown that at room temperature EPR spectra observed retardation of rotational mobility of the spin label with the correlation time t
≤10
s, which indicates changes in the system of between- and intramolecular hydrogen bonds in joining the mark. It was established that in the EPR spectra parameters characterizing slowly rotation changes radical, and the parameter h'/h- ratio of the amplitude of low-floor line weakly mobilized marks belong to the radical high speed very sensitive, indicating that the various structural changes in the components of the clover. |
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Key words: спиновая метка; лекарственное растение донник; молекулярная структура; спектры ЭПР; экологические условия; spin label; a medical plant clover; molecular structure-EPR spectra; the environmental conditions. | |
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Download | Kayumov A.M., Mirzoev D.Kh., Pulatov M.S., Mirsaidov U.M. | 316-319 | Mixed coagulants used for water purification |
The article provides information about results of mixed coagulants obtainment from green kaolin clay of Chashma-Sang deposits of Republic of Tajikistan. The coagulating power of mixed coagulant based on iron chloride and aluminum chloride was also shown in the article. |
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Key words: смешанный коагулянт; зелёный каолин; Чашма-Санг; хлорид железа; хлорид алюминия; mixed coagulant; green kaolin; Chashma-Sang; iron chloride; aluminum chloride. | |
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Download | Dzhonmurodov A.S., Teshaev Kh.I., Kholov Sh.E., Usmanova S.R., Muhidinov Z.K., Strahan G.D., Liu L.S. | 320-325 | Structure of pectic polysaccharides from sunflower salt soluble fraction |
The manuscript discusses analysis of the structural features of pectin polysaccharides (PP) salt-soluble fractions obtained from sunflower by
H,
C and two-dimensional gHSQC NMR spectroscopy. Using
H,
C NMR spectra the percentage content of functional groups in the fractions PP were determined. The diversity number of methyl groups found in NMR spectra of the two fractions, show the presence of the four structure varieties, where the carboxyl groups in the PP are surrounded by various groups. gHSQC spectra showed the presence of a large number of anomeric carbon in the sunflower PP macromolecules of studied fraction. |
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Key words: пектиновые полисахариды; структура;
Н,
С, ЯМР-спектроскопия
; двумерная gHSQC ЯМР-спектроскопия; pectic polysaccharides; structure;
H,
C NMR spectroscopy
; two-dimensional gHSQC NMR spectroscopy. | |
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Download | Jamolzoda B.S., Murodiyon A., Safarov A.G., Safiyev H.S. | 326-330 | Mineral deposits impurities in anthracite Nazarailok |
By spectroscopic and chemical methods of analysis quantified the content of mineral impurities and rocks in the anthracite of field Nazarailok. It is shown that in the composition of anthracites microprime include Al
O
, SiO
, Fe
O
, CaO, MgO, and trace elements Sr, Pb, As, Zn, Cu, Ni, Co, Mn, Cr, V, Ti, and others. These data compared with the chemical composition of ash anthracite like Russian Donbass. |
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Key words: минерал; примесь; антрацит; зола; спектроскопия; метод; элемент; mineral; admixture; anthracite; ash; spectroscopy; method; element. | |
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Download | Gadoev M.L. | 331-337 | Fluorite barite deposits in Northern Tajikistan |
The paper summarizes the results of research thermobarogeochemical fluorite from barite deposits. Mineralogical characteristics of fluorite and distribution of trace elements in their composition have been given. |
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Key words: месторождение; флюорит; элементы-примеси; включения минералообразующих растворов; deposits; fluorite; trace elements; inclusion of mineral; forming solution. | |
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Download | Salikhov F.S. | 338-341 | Mineral spring in r.Balandkiik valley (Northern Pamir) |
First new mineral spring description on Northern Pamir is given. |
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Key words: минеральные воды; известковистые туфы; Северный Памир; источник Фируза МГУ; mineral spring; calcareous tufa; Northern Pamir; spring Firuza MGU. | |
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Download | Sobirova M.M., Olimov N.Kh., Eltanazarov M.D. | 342-346 | Evaluation of effectiveness of Omacor, in patients with acute coronary syndrome complicated by ventricular arrhythmias |
The article presents data the effectiveness of Omacor in the treatment of patients with acute coronary syndrome with ST segment elevation (ACSEST) complicated with ventricular arrhythmias. It is shown that in the background of the basic treatment of patients with ACSEST, the use of Omacor in the stationary phase of 1000 mg per day is an effective method of treatment for patients with ventricular arrhythmias. The study found that the Omacor reduces the incidence of ventricular premature beats I and II gradation by 66%, and ventricular premature beats III and V gradation (by Lawn Wolf) by 58%, which in turn helps to reduce hospital mortality in these patients. |
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Key words: Омакор; острый коронарный синдром; желудочковая аритмия; Omacor; acute kronary syndrome; ventricular arrhythmia. | |
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Download | Rahmatullaev R., Kurbanov Dzh.M., Rasulov N.I., Rahmatullaev A.R., Ashurov A.S. | 347-352 | Laparoscopic cholecysttomy from a single laparoscopic access |
The ability to perform a single laparoscopic cholecystectomy of access is necessary to determine at the time of diagnosis videolaparoscopy . Videolaparoscopic cholecystectomy from a single access in connection with the minimum number of cuts on the anterior abdominal wall is accompanied by a minimum frequency of various complications compared with laparoscopic cholecystectomy. When you are experiencing technical difficulties easy to apply additional ports that are subsequently used to drain the gallbladder bed . |
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Key words: единый доступ; видеолапароскопическая холецистэктомия; холецистит; equal access; laparoscopic cholecystectomy; cholecystitis. | |
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