Известия Академии наук Республики Таджикистан. Отделение физико-математических, химических, геологических и технических наук, №4, 2014 г. |
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Скачать | Rakhmonov Z.Kh., Zamonov B.M. | 7-23 | Short cubic double exponential sums, with a long continuous summation |
The work is dedicated to the conclusion of non-trivial estimates of short cubic double exponential sums, with a long continuous summation, the type of |
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Ключевые слова: короткая двойная тригонометрическая сумма; метод оценок тригонометрических сумм с простыми числами; нетривиальная оценк; shorts double exponential sum; method for estimating exponential sums with prime numbers; nontrivial estimate. | |
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Скачать | Saidusaynov M.S. | 24-31 | The Kolmogorov’s type of inequalities in the weighted Bergman space for analytic functions with one variable |
In this paper a new inequalities of Kolomorov’s type for analytic functions in a unit circle were obtained in the weighted Bergman space . |
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Ключевые слова: неравенство типа Колмогорова; весовое пространство Бергмана; наилучшее приближение; весовая функция; Kolmogorov’s type inequalities; weighted Bergman space; the best approximation; weight function. | |
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Скачать | Shamsudinov F.M. | 32-41 | Integral representations solutions for one over determined system differential equations with singularity coeffisients |
In this work for one over determined system of second order differential equations with singularity point are obtained representation the manifold solution and study the properties of solutins, also problem and . |
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Ключевые слова: переопределённая система; сингулярная точка; многообразие решений; прямоугольник; over determined system; singular point; manifold solution; rectangle. | |
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Скачать | Karimov O.Kh. | 42-50 | On separability of the second order nonlinear differential operators with matrix coefficients |
The separability is proved in the paper for a class of the second order nonlinear differential operators with matrix coefficients which are not weak perturbation of a linear operator and given in a hole n-dimensional Euclidian space. |
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Ключевые слова: нелинейный дифференциальный оператор; разделимость; коэрцитивное неравенство; матричный коэффициент; nonlinear differential operator; separability; coercive inequality; matrix coefficient. | |
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Скачать | Mirzoev S.S. | 51-58 | The Cauchy’s modified problems for the general degenerating nonclassical equations of the 4th order |
In this work the general degenerating equation of the 4th order of compound type are considered end unambiguous resolvability of a task like Cauchy’s task with modified entry conditions in investigated. |
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Ключевые слова: уравнение неклассического (составного) типа; формула Пуассона; функция Грина; видоизменённая задача Коши; функция Бесселя; уравнение типа Гельмгольца; the equations of nonclassical (composite) type; Poisson’s formula; Green’s function; Cauchy’s modified problem; Bessel function; Helmholtz type equation. | |
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Скачать | Kabilov M.M., Gulboev B.J. | 59-67 | Influence heat losses and diffusions component gas mixture on spreading the wave of the combustion in inert porous ambience |
In this paper, for the wave propagation velocity of combustion gas in an inert porous medium obtained by the ratio, the coefficients of diffusion and heat loss components of the gas mixture. On the basis of this correlation coefficient to study the effect of heat loss on the speed of the combustion wave. This assumes symmetry of temperature profiles of the porous medium and the concentration of gas mixture components. |
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Ключевые слова: волна горения; скорость вдува; теплоотдача стенки; радиус трубки; теплопотери; коэффициент диффузии; смесь газов; the wave of the combustion; a velocity blow; heat return walls; a radius of the tube; heat losses; a factor to diffusions; a mixture gas. | |
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Скачать | Narzulloev S.A. | 68-72 | Conceptual model of management process in separate departments of agencies of internal affairs of the Republic of Tajikistan |
In this article conceptual model of management in administrative activity which main issue is the need for decision-making in all situations, even when uncertainty or lack of information about the possible consequences of actions taken, is suggested. |
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Ключевые слова: управление; модель; критерий эффективности; management; model; norm of fruitful. | |
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Скачать | Kurbonov A.S., Barotov A.M., Yakubov Z.T., Nazarov F.A., Mirsaidov U.M. | 73-75 | Acetic acid decomposition kinetics of burnt danburite concentrate |
The results of study of acetic acid decomposition kinetics of boric concentrate are presented in the article along with activation energy of the process that was calculated. |
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Ключевые слова: концентрат данбурита; переработка; уксусная кислота; разложение; извлечение; кинетика; danburite concentrate; reprocessing; acetic acid; decomposition; extraction; kinetics. | |
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Скачать | Isobaev M.D., Davlatnazarova M.D., Pulatov E.Kh., Abdullaev T.Kh., Turdialiev M.Z., Fayzilov I.U. | 76-82 | Ionogenic adsorbents from coal mine "Ziddi", «Fon-Yagnob» and environmental aspects of their usage |
In paper presents results of preparation of theionogenic adsorbers based on coal deposits "Ziddi" and "Fon Yagnob." The ionogenic properties related to high ash content (over20%.)of the individual coal beds.The adsorption activity of iodine replied to the regulation of the GOST. It was shown the possibility of adsorbers for solving environmental problems, in particular, on the accumulation on the surface of lead ions. When comparingthe activity of adsorbers produced from the deposit "Ziddi" and "Fon Yagnonb" in relation to lead ions obnoruzhen a correlation of adsorption activity with ash coals |
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Ключевые слова: адсорбенты из углей высокой зольности; адсорбция ионов тяжелых металлов; ионогенные свойства; absorbers from coals of high ash content; the adsorption of heavy metal ions; ionogenic properties. | |
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Скачать | Azizov B.S., Mirpochaev Kh.A., Safiev H. | 83-89 | Thermodynamic analysis of coal gasification process |
A thermodynamic analysis of the possibility of occurrence of some reactions in coal gasification in a two-stage gasifier. The equilibrium constants of these reactions and equilibrium concentrations of the components of the synthesis gas under actual conditions were calculated. |
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Ключевые слова: термодинамический анализ; газификация угля; синтез-газ; константа равновесия; равновесная концентрация; thermodynamic analysis; coal gasification; synthesis gas; equilibrium constant; the equilibrium concentration. | |
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Скачать | Fayziev A.R., Takranov R.L., Dzaynukov A.B., Mutavaliev A.T. | 90-104 | Conditions of tectonic dikes and skarn ore bodies on Altintopkan field (Northern Tajikistan) |
In an article for an example of deposit Altintopkan (Zarnisor) discussed the tectonic conditions of formation of dikes and skarn ore bodies. |
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Ключевые слова: тектонические условия; дайка; скарн; оруденение; Алтынтопкан; месторождение; структура; tectonic conditions; dike; skarn; mineralization; Altintopkan; field; structur. | |
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Скачать | Akhmedov Kh.M., Partoev K., Tashbaev G.A. | 105-112 | Jerusalem artichoke (
L.) - promising crops for biofuel production in Tajikistan |
In this article on the basis of published data and experience Tajikistan scientists attempt to show national economic, in particular energetic significance and prospects for introduction multipurpose use nontraditional crop - Jerusalem artichoke. In this article conducted an overview of traditional and nontraditional crops, which can be used as raw material for biodiesel. |
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Ключевые слова: биотехнология; растительное сырьё; биоэнергетика; биотопливо; топинамбур; урожайность; биоэтанол; нетрадиционные виды сырья; спиртовая промышленность; углеводы; biotechnology; plantmaterial; bioenergy; biofuels; Jeruasalem artichoke; productivity; bioethanol; unconventional materials; alcohol industry; carbohydrates. | |
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Скачать | Bobokalonov J.T., Muhidinov Z.K., Komilova G.I., Kimatov R.S., Rahmonov E.R. | 113-118 | Determination of ciprofloxacin in biological fluids by cappliary electrophoresis |
The article to deal with the application of Electrophoresis method (CE) for determination of antibiotics from fluoroquinolones families in blood and faeces in patient administrated with antibiotics in different forms. The CE method has shows a number of advantageous application in the studied field: high sensitive, available to work with small samples, high selectivity, fast preformation and versatile. |
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Ключевые слова: капиллярный электрофорез; ципрофлоксацин; дизентерия; биологические жидкости; capillary electrophoresis; ciprofloxacin; dysentery; biological fluids. | |
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Скачать | | 123-125 | |
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Скачать | , | 126-127 | |
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Скачать | , | 128-129 | |
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