🔍

Об одном геометрическом свойстве (n-s,q)емкости

Ushbu nashr "Ilm sarchashmalari" nomli Urganch davlat universitetining ilmiy-metodik jurnali bo'lib, 2018 yil 3-sonida chop etilgan. Jurnal O'zbekiston Respublikasi Vazirlar Mahkamasi huzuridagi Oliy attestatsiya komissiyasining FILOLOGIYA va FALSAFA hamda FIZIKA-MATEMATIKA fanlari bo'yicha doktorlik dissertatsiyalari asosiy ilmiy natijalarini chop etish tavsiya etilgan ilmiy nashrdir. Nashrning asosiy maqsadi turli ilmiy yo'nalishlardagi dolzarb masalalarni yoritish, tadqiqot natijalarini keng jamoatchilikka taqdim etish va ilmiy-metodik bilimlarni yanada boyitishdan iborat. Ushbu sonida matematika, kimyo-texnologiya, falsafa, tilshunoslik, adabiyotshunoslik va pedagogika kabi keng qamrovli fanlar bo'yicha ilmiy maqolalar jamlangan.

🔑 Kalit soʻz🎯 74.6%

Institute of Mathematics, Uzbek Academy of Sciences.

Ushbu maqola "Optimal quadrature formulas with derivatives for Cauchy type singular integrals" sarlavhasi ostida chop etilgan bo'lib, Cauchy tipidagi maxsus integral tenglamalarini yechish uchun hosilaviy funksiyalardan foydalangan holda optimal kvadratur formulalarni ishlab chiqishga bag'ishlangan. Tadqiqotda integral tenglamalarni yechish uchun yangi usullar taklif etiladi va ularning samaradorligi matematik jihatdan asoslab beriladi. Maqolada keltirilgan nazariyalar va formulalar ko'plab ilmiy va amaliy muammolarni hal qilishda qo'llanilishi mumkin.

🔑 Kalit soʻz🎯 74.2%

Решение нелокальных задач первого рода для уравнений гиперболического типа второго порядка с сингулярными коэффициентами

The journal "Problems of Modern Science and Education" No. 6 (126) in 2018 covers a wide range of scientific research, including physics and mathematics, biology, technical sciences, historical sciences, economic sciences, geographical sciences, pedagogical sciences, philological sciences, medical sciences, and philosophy. The journal features articles on solving non-local problems for hyperbolic equations, the ecological basis for predicting the number of green apple aphid, the regulation of the electrical activity of ureters with histamine, experimental equipment for investigating innovative methods of tube drawing, the features of calculation schemes in the choice of parameters of suspension systems of transport and technological machines, the study of temperature sensor circuits for radiation resistance, the calculation of the coefficient of technological efficiency of printed circuit boards, the problems of accounting for small businesses, the use of cash flow indicators in assessing the efficiency of financial strategies, the perspectives of international scientific and technological cooperation of Russia in the field of civil aviation, the development of an assessment method for master's programs, the study of precedent phenomena and phraseological expressions, the naming of orographic objects based on natural-geographical signs and features, the housing and economic conditions in the postwar period in the hero-city of Novorossiysk, the analysis of the relationship between the development of the Russian economy and small enterprises, the problem of social and communicative development of children of preschool age, aesthetic education of junior pupils by means of art, the fate of N.Ya. Danilevsky's heritage in the XXI century, questions of applied ethics in the light of N. Berdyaev's personalism, the recognition of voice binding dysfunction under laryngospasm in children, the evaluation of the effectiveness of some approaches in emergency medical assistance in diffunction of voice bindings in children, the features of electronic microscopy of kidney nephrons and weights of rat bodies in long-term food deprivation at highlands, and the formalization of positioning of stable isotopes.

🔑 Kalit soʻz🎯 74.1%

Aminometillash reaksiyalarining amaliy ahamiyati

Ushbu kitob aminometillash reaksiyalari, ularning mohiyati, tarixi, mexanizmlari va amaliy ahamiyatiga bag'ishlangan. Organik kimyo nuqtai nazaridan reaksiyalarning nazariy asoslari, shuningdek, ushbu reaksiyalarda olingan moddalarning turli sohalardagi qo'llanilishi batafsil yoritilgan. Kitobda, shuningdek, ferrotsen birikmalarining xususiyatlari va ularni aminometillash reaksiyalarida qo'llash masalalari ko'rib chiqilgan.

🔑 Kalit soʻz🎯 73.7%

About the issues of geometrical inequalities and the methods of their solution

Ushbu maqola geometrik tengsizliklar va ularning yechimlari uchun ishlatiladigan sof analitik va geometrik usullar haqida bo'lib, geometrik tengsizliklarni isbotlashda uchraydigan ba'zi masalalarni o'rganadi. Maqolada uchburchakning medianalari yig'indisi, o'tkir burchakli uchburchak tomonlari va tashqi chizilgan aylana radiusi kabi geometrik tengsizliklar tahlil qilinadi. Shuningdek, maqolada uchburchak tengsizliklarining amaliyoti, hamda ularni isbotlashning sof analitik va geometrik usullari o'rganilgan.

🔑 Kalit soʻz🎯 73.4%

О разрешимости одной нелокальной задачи для уравнения гиперболического типа

Ushbu maqola giperbolik tipdagi tenglamalar uchun bir nomanfiy masalaning hal qilinishini o'rganadi. Tadqiqotda D deb nomlangan to'rtburchakli sohada, ya'ni $D = \{(x, y) : 0 < x < l, 0 < y < h\}$ da $u_{xy} + a(x, y)u_x + b(x, y)u_y + c(x, y)u = f(x, y)$ ko'rinishidagi ikkinchi tartibli giperbolik tenglama ko'rib chiqiladi. Mualliflar bu tenglama uchun integral shartlar bilan tavsiflangan nomanfiy masalani o'rganadi. Xususan, chegaraviy shartlardan biri o'ng chegara uchun integral shartni o'z ichiga oladi. Maqolada ushbu masalani yechishning usullari, ya'ni uning Volterra turidagi ikkinchi tur integral tenglamasiga keltirilishi va natijada yagona regulyar yechimning mavjudligi isbotlangan. Tadqiqotda qo'llanilgan usullar va olingan natijalar boshqa nomanfiy masalalarni o'rganish uchun asos bo'lib xizmat qilishi ta'kidlangan.

🔑 Kalit soʻz🎯 73.1%