Детальный поиск
Отменить
Найденный: 354 Экземпляр 0.003 sn
- Вы можете использовать опцию И / ИЛИ / НЕ для критериев, которые вы хотите добавить или.
- Вы можете вернуться к обычному поиску, нажав кнопку Отмена.
Фильтры
Фильтры
Найденный: 354 Экземпляр 0.003 sn
Факультет / Институт : Fen Fakültesi ✕
Коллекция [2]
Ученые [35]
Устойчивое развитие ООН [14]
Факультет / Институт [1]
Вид публикации [5]
Год публикации [19]
Язык [4]
Источник [35]
Базы данных [35]
Вид индекса [8]
Вид индекса 2 [2]
Издатель [35]
Кафедра [3]
Национальный/Международный [2]
Тематический рубрикатор [35]
Доступ к файлам

Introduction to Linear Difference Equations

Anarkül URDALETOVA

One of the biggest problems of modern mathematics is, to a large extent, its isolation from the world around it. Extensive use of linear difference equations can make a great contribution to solving this problem. In the language of these equations, the problems of financial mathematics are beautifully presented. And as can be understood from the study of difference equations, this is by no means their only advantage. In particular, there is a direct connection between the theory of linear difference equations and the theory of linear ordinary differential equations. Therefore, we are convinced ...Более

Глава книги 2022 Fen Fakültesi Advances in Mathematics Research32 ( Chapter 5 ) 22 Просмотры
Доступ к файлам

Lichens and lichenicolous fungi from Bitlis province in Turkey

Ali ASLAN

As a result of lichenological exploration in Bitlis province (Turkey), a total of 325 lichens and 21 lichenicolous fungi, which are belonging 113 genera in Ascomycota were determined from 92 different localities. Buellia vouauxii, a lichenicolous fungus, and is new to Turkey and also new for Asia. Aspicilia glomerulans, Llimoniella muralicola, Myriolecis invadens, Ochrolechia subviridis, Placynthium hungaricum and Placynthium posterulum were reported for the second time from Turkey. Collecting localities and their substrata are presented.

Статья 2020 Fen Fakültesi Lindbergia2020 ( 1 ) 35 Просмотры
Доступ к файлам

Lichens and Lichenicolous Fungi from Muş Province in Turkey

Ali ASLAN

A contribution to the lichen flora of Turkey is presented. A total of 282 lichen taxa and 20 lichenicolous fungi, of which 4 are varieties, are determined from 87 different localities in Muş province (Turkey). Lichenostigmagracile, a lichenicolous fungus, is new to Turkey, and 274 lichen species and 20 lichenicolous fungi are new for Muş.

Статья 2020 Fen Fakültesi Acta Botanica Hungarica62 ( 3-4 ) 46 Просмотры
Доступ к файлам

Method of additional argument in problems of optimal control

Ramiz RAFATOV

The problem of control of the process described by the nonlinear differential equation with partial derivatives of the first order, with conditions at t 0 and in a sequence n of points x1 < x2 ... < xn is solved. The criterion of quality of control is the integrated quadratic functional, which depends on a final state of system and set n of controlling parameters. The method of increment of functional is applied to reception of conditions of optimality, and the method of additional argument (MAA) is applied for the decision of the nonlinear equations with partial derivatives.

Доклады конференции 2004 Fen Fakültesi IFAC Proceedings Volumes (IFAC-PapersOnline)37 ( 17 ) 9 Просмотры
Доступ к файлам

Ordinary differential equations with power boundary layers

Asan ÖMÜRALİEV | Ella ABILAYEVA

The regularized asymptotics of a solution of the Cauchy problem for systems of singularly perturbed ordinary differential equations is constructed. It is shown that a power boundary layer appears in such problems in addition to other boundary layers.

Статья 2019 Fen Fakültesi Journal of Mathematical Sciences242 ( 3 ) 46 Просмотры
Доступ к файлам

Plant Diversity of Ala-Archa National Park in Kyrgyzstan with Emphasis on Its Economical Potential

Nazgül İMANBERDİYEVA | Zeki SEVEROĞLU | Gülbübü KURMANBEKOVA

The national parks are the most important tools in biodiversity conservation. The generally include remote and rugged areas possessing a low possibility for human use. They are of lower economic value. Currently the Republic of Kyrgyzstan possesses a total of eight national parks. These cover approximately 1.4 of national territory. One of these national parks is the Ala-Archa National Park. During the period covering the months from May to October, every weekend hundreds of visitors pay a visit to this oldest national park of the country established in 1976. The 25 km long park has a total ar ...Более

Глава книги 2018 Fen Fakültesi Vegetation of Central Asia and Environs ( Chapter 16 ) 72 Просмотры
Доступ к файлам

Potential Impacts of Climate Change on Plant Diversity of Sary-Chelek Biosphere Reserve in Kyrgyzstan

Nazgül İMANBERDİYEVA | Zeki SEVEROĞLU

The Sary-Chelek Nature Reserve established in 1959 with an area of 239 km2 and declared as a UNESCO-MAB Biosphere Reserve in 1978 is located on the southeast-facing slope of the northern Chatkal Range in central Jalalabad province. It is centered around the scenic Sary-Chelek Lake. The mountains immediately surrounding the lake abound in exceptionally diverse flora and fauna, what may be the widest variety found in the Tian Shan. The area is spread over varied ecosystems and habitats, which include the forests of spruce and juniper together with the forests of wild fruits and nuts and riparian ...Более

Глава книги 2018 Fen Fakültesi Vegetation of Central Asia and Environs ( Chapter 15 ) 52 Просмотры
Доступ к файлам

Regularization of the Singularly Perturbed Cauchy Problem for a Hyperbolic System

Asan ÖMÜRALİEV | Ella ABILAYEVA

In this paper we construct the asymptotics of the solution of the Cauchy problem for a singularly perturbed hyperbolic system by using the regularization method for singularly perturbed problems of S.A. Lomov. The regularization method for singularly perturbed problems of S.A. Lomov is used for the first time to construct the asymptotic solution of a hyperbolic system.

Статья 2022 Fen Fakültesi Journal of Mathematical Sciences264 ( 4 ) 70 Просмотры
Доступ к файлам

Regularized Asymptotics of the Solution of Systems of Parabolic Differential Equations

Asan ÖMÜRALİEV | Ella ABILAYEVA

The regularization method for singularly perturbed problems of S. A. Lomov is generalized to constructing the asymptotics of the solution of the first boundary value problem for systems of differential equations of parabolic type with a small parameter at all derivatives.It is shown that the asymptotics of the solution of the problem contains n exponential, 2n parabolic and 2n angle boundary layer functions.The exponential boundary layer function describes the boundary layer along t 0, the boundary layer along x 0 and x 1 is described by parabolic boundary layer functions. © 2022, University o ...Более

Статья 2022 Fen Fakültesi Filomat36 ( 16 ) 21 Просмотры
Доступ к файлам

Serum biochemical reference values of Kyrgyz donkeys (Equus asinus)

Nurcamal ÖMÜRZAKOVA

The aim of the study was to determine the some serum biochemical values of Kyrgyz donkeys and present the reference values. Fifty (50) healthy donkeys in different ages (6–24 months, 2–15 years, and > 15 years old) and gender (male and female) were clinically examined and blood samples were taken. Serum triglycerides (TG), creatine phosphokinase (CPK), aspartate aminotransferase (AST), gamma glutamyl transferase (GGT), alkaline phosphatase (ALP), total bilirubin (TBil), total protein (TP), albumin (Alb), creatinine (Creat), urea (Urea), amylase (Amy), lipase (Lip), calcium (Ca), magnesium (Mg) ...Более

Статья 2019 Fen Fakültesi Comparative Clinical Pathology28 ( 3 ) 70 Просмотры
Доступ к файлам

The Optimal Vector Control for the Elastic Oscillations Described by Fredholm Integral-Differential Equations

Elmira ABDILDAYEVA

In this paper, we investigate the nonlinear problem of the optimal vector control for oscillation processes described by Fredholm integro-differential equations in partial derivatives when function of external sources nonlinearly depend on control parameters. It was found that the system of nonlinear integral equations,which obtained relatively to the components of the optimal vector control, have the property of equal relations. This fact lets us to simplify the procedure of the constructing the solution of the nonlinear optimization problem. We have developed algorithm for constructing the s ...Более

Доклады конференции 2019 Fen Fakültesi Analysis and Partial Differential Equations: Perspectives from Developing Countries275 17 Просмотры
Доступ к файлам

The web-based learning environment in general physics course in a public university in Kyrgyzstan

Gülşat MUHAMETJANOVA | Azat AKMATBEKOVA

This study was conducted to see the attitudes of students toward web-based learning environment in General Physics course. The study was conducted in a public university in Kyrgyzstan in 2018. 144 students from the faculty of Science and Engineering participated in the study. Online questionnaire was completed online at the end of the spring semester 2017-2018. In addition, in-depth interviews with 12 students were conducted. Results showed that students’ success in online Physics course depends on gender and academic major of students. Factors, that were defined in this study: advantages over ...Более

Статья 2019 Fen Fakültesi Eurasia Journal of Mathematics Science and Technology Education15 ( 3 ) 66 Просмотры
Наши обязательства и политика в отношении файлов cookie подпадает под действие закона ТР защите персональных данных № 6698.
Да
creativecommons
Bu site altında yer alan tüm kaynaklar Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.
Platforms