OAK jurnallaridan yig‘ilgan 140147 ta ilmiy maqola: sarlavha, mualliflar, annotatsiya, kalit so‘zlar, DOI va tayyor iqtibos formatlari.
- Interrelation of chemical and fractional structures of river sediments
Aybеk Arifjanov, Lukmon Samiev · Irrigatsiya va melioratsiya jurnali · 2018-06-01
In this article, the mechanical and chemical compositions of river sediments are studied, the analysis of studies on the change in the chemical composition with a change in the mechanical composition of the sediments is…
- Study of the effect of relative humidity on the operating modes of the ionizer
Abdugani Rakhmatov, S.R. Namozov · Irrigatsiya va melioratsiya jurnali · 2018-06-01
When using electro-ionizers in the conditions of the fruit storage facilities, it is necessary to take into account the influence of environmental conditions of the electrical ionizers. A particularly important factor…
- New methods of accounting for vertical refraction with trigonometric liveling in the conditions of the republic of Uzbekistan
Abdusali Suyunov, U.A. Berdiculov, Sh.A. Suyunov · Irrigatsiya va melioratsiya jurnali · 2018-06-01
In the conditions of Uzbekistan, a simple and ordinary method of refraction is used to determine the relative elevations without vertical refraction coefficient or angle. Described that these methods require a two-sided…
- Calculation of energy parameters of an autonomous solar power plant in arnasay region
Юлдашев, У.Ю., Саттаров, С.А., Тайланов, Н.А., Самадов, М.X. · O‘zbekiston fizika jurnali · 2018-05-21
The purpose of our research is calculation of capacity and energy of an independent solar power station. Theoretical calculations of the basic power characteristics of the solar panels established in territory of…
- Highly efficient Nd:Cr:GSGG laser with side-pumping by solar radiation
Payziyev, Sh., Bakhramov, S., Makhmudov, Kh., Fayziev, A. · O‘zbekiston fizika jurnali · 2018-05-21
The possibility of achieving high efficiency of converting solar energy into laser radiation energy on the basis of the active element Nd: Cr: GSGG in the form of a thin slab allowing providing an effective heat output…
- To the question of generation of plasma flow by vacuum arc discharge and deposition of coatings
Арустамов, В.Н., Ашуров, Х.Б., Худайкулов, И.Х., Кахрамонов, Б.Р. · O‘zbekiston fizika jurnali · 2018-05-21
A concept is proposed of forming the effective generation of a plasma flux by a vacuum-arc discharge in a substrate, with the functional systems of initiation of a vacuum-arc discharge with the necessary…
- Time dependence of formation of heteromolecular structures in aqueous solutions of certain organic solvents
Гофуров, Ш.П, Коххаров, А.М., Бахрамов, С.А., Махманов, У.К., Исмаилова, О.Б. · O‘zbekiston fizika jurnali · 2018-05-21
For the first time, the refractometry method was used to determine optical characteristics and concentration features of aqueous solutions of tetrahydrofurane, dimethylformamide and ethanol. Refractive indices of…
- Some physical aspects of solar energy conversion
Абдурахманов, Г., Вахидова, Г.С., Маматкулова, С.А. · O‘zbekiston fizika jurnali · 2018-05-21
Conversion process of energy of solar radiation into electricity is analyzed from point of view of mass, charge and energy transport. It is shown that, as in all other kinds of energy sources, there are limitations for…
- Surface structural transformations observed in Si (111) and Si (100) during the formation of silicide films
Рысбаев, А.С., Нормуродов, М.Т., Бекпулатов, И.Р., Рахимов, А.М., Игамов, Б.Д. · O‘zbekiston fizika jurnali · 2018-05-21
The processes of formation of thin nanosized films of Ba silicides and alkaline elements during their low-energy and high-dose implantation in Si(111) and Si(100) have been studied using electron spectroscopy…
- Some characteristics of silicon film structures obtained by vacuum deposition
Абдурахманов, Б.М., Ашуров, М.Х., Ашуров, Х.Б., Каланов, М.У., Кучканов, Ш.К., Кутлимуротов, Б.Р., Максимов, С.Е., Ниматов, С.Ж. · O‘zbekiston fizika jurnali · 2018-05-21
The results of decreasing the epitaxy temperature up to 900−1100 K to produce sufficiently perfect films under vacuum deposition and by ion stimulation have been presented.
- Influence of heat treatment on electrophysical properties of nickel-doped silicon
Зайнабидинов, С.З., Тургунов, Н.А. · O‘zbekiston fizika jurnali · 2018-05-21
The influence of a thermal annealing on electric conduction of silicon monocrystals doped by nickel has been studied. Also, an analysis of the morphology of impurity microinclusions under the influence of heat treatment…
- Absorption of linearly polarized radiation in a size quantized well
Расулов, Р.Я., Расулов, В.Р., Эшболтаев, И., Мамадалиев, Н.С. · O‘zbekiston fizika jurnali · 2018-05-21
The absorption of linearly polarized light in a semiconductor dimension-quantized well related both to optical transitions between branches of light and heavy holes and between dimension-quantized subbands has been…
- Upgraded 1 meter telescope and science projects
Ehgamberdiev, Shuhrat A., Hojaev, Alisher S., Burkhanov, O., Yuldoshev, Q., Karimov, R., Mirzakulov, D., Zhao, Gang, Fan, Zhou, Jiang, Xiaojun, Wang, Wei, Chen, Yu-Qin, Liu, Yu-Jua · O‘zbekiston fizika jurnali · 2018-05-21
The article presents the latest status of the Maidanak 1 m telescope, instruments and the related facilities of the Observatory as well as the science projects. The renovation of the 1 m telescope of Carl Zeiss…
- Some problems of physics of the thermoelectric phenomena
Abdurakhmanov, Gulmurza · O‘zbekiston fizika jurnali · 2018-05-21
This paper shows inadequacy of contemporary conceptions of physics on nature of thermoelectric phenomena (Sebeck, Peltie and Thomson effects), based on linear nonequilibrium thermodynamics, to experimental data having…
- Carboxamides of the Alkaloid Dihydrothalsimine and Their Cytotoxicities
A. V. Koval′skaya, П. Р. Петрова, А. Н. Лобов, Л. Ф. Зайнуллина, В. А. Вахитов, Валентина И. Виноградова, Yu. V. Vakhitova, Ф. З. Галин, И. П. Цыпышева · Химия природных соединений · 2018-05-01
- Composition of the Essential Oil of Galium setaceum
Abdul Khaliq Jan, Ajmal Khan, Umar Farooq, Noor Rehman, Muhammad Tariq, Hasin Sahar · Химия природных соединений · 2018-05-01
- Improved Synthesis of Dbibb as a New Anti-Radiation Agent
Hongpeng Yang, Shouguo Zhang, Gang Wang, Xiaoxue Wen, Yunbo Sun, Shu‐Chen Liu, Tao Peng, Lin Wang · Химия природных соединений · 2018-05-01
- Chemical Constituents of Soy Germ
Hong-Cai Zhan, Yuxuan Ma, Xin Fu, Lijun Yang, Cheng Feng, Dandan Zhang, Haichun Zhou, Mingxu Hu · Химия природных соединений · 2018-05-01
- Chemical Composition and Antimicrobial Activity of the CO2 Extract of Tinospora sinensis
Yongchang Lu, Xuesong Bai, Qiaohui Zeng, Ping Lin · Химия природных соединений · 2018-05-01
- Flavonoids from Roots of Scutellaria intermedia
Э. Х. Ботиров, А. М. Каримов · Химия природных соединений · 2018-05-01
- Synthesis and Modification of 6-thiazolyl-4-methylumbelliferone
Т. В. Шокол, E. N. Abdullaev, Н. В. Горбуленко, M. S. Frasinyuk, V. P. Khilya · Химия природных соединений · 2018-05-01
- New Semi-Synthetic Derivatives of Capsaicinoids and Their Antioxidant Activities
Pakit Kumboonma, Chalerm Ruangviriyachai, Paveena Khansawai, P. Karitpattawan, Chanokbhorn Phaosiri · Химия природных соединений · 2018-05-01
- Isolation and Characterization of Antimicrobial Peptides from Bos taurus Bone Marrow
Parhat Rozi, P. Muhammat, У. Ж. Ишимов, V. V. Maksimov, A. Waili, Abulimiti Yili, Haji Akber Aisa · Химия природных соединений · 2018-05-01
- Isolation and Purification of Active Proteases from Sheep Abomasum and Their Biological Activity
B. Liu, O. Abdullaev, O. S. Charyshnikova, Sh. Ya. Mirzaakhmedov, Abulimiti Yili, Haji Akber Aisa · Химия природных соединений · 2018-05-01
- Specific Inhibitors of Sporangium Formation of Phytophthora capsici from Kalimeris indica
Haimo Zhang, Umer Farooq, Lihong Cheng, Yumin Ye, Yuanchao Wang, Hirokazu Kawagishi, Makoto Ojika, Jianhua Qi · Химия природных соединений · 2018-05-01
- Nonpolar Compounds and Free Fatty Acids from Several Isolates of Marine Fungus Penicillium antarcticum
G. K. Oleinikova, Н. Н. Киричук, Sh. Sh. Afiyatullov · Химия природных соединений · 2018-05-01
- Steroidal Glycoside from Allium porrum
L. N. Gvazava, А. В. Схиртладзе · Химия природных соединений · 2018-05-01
- Chemical Composition of Essential Oil from Dionysia hissarica
Nilufar Z. Mamadalieva, Orzimat T. Turginov, Thomas Rosenau, M. Fakhrutdinova, Shakhnoza S. Azimova, K. Sh. Tozhibaev, Stefan Böhmdorfer · Химия природных соединений · 2018-05-01
- Influence of Altitude on Chemical Variability of Volatile Profile for Endemic Diplotaenia bingolensis
İbrahim Halil Geçibesler, İbrahim Demirtaş, Lütfi Behçet · Химия природных соединений · 2018-05-01
- Constituent Composition and Biological Activity of Essential Oil from Turczaninowia fastigiata
E. M. Suleimen, Zh. B. Iskakova, Р. В. Дудкин, П. Г. Горовой · Химия природных соединений · 2018-05-01
- Constituent Composition and Biological Activity of Essential Oil from Cousinia alata
E. M. Suleimen, A. Sh. Zhanzhaksina, G. G. Sisengalieva, Zh. B. Iskakova, Margarita Ishmuratova · Химия природных соединений · 2018-05-01
- Hydroboration by Diborane of Methyl Abietate
В. А. Выдрина, А. А. Кравченко, M. P. Yakovleva, Р. Р. Муслухов, A. G. Tolstikov, G. Yu. Ishmuratov · Химия природных соединений · 2018-05-01
- Four Major Urinary Metabolites of Liquiritigenin in Rats and Their Anti-Platelet Aggregation Activity
Yuanyuan Li, Long Yang, Xin Chai, Junjun Yang, Yuefei Wang, Yan Zhu · Химия природных соединений · 2018-05-01
- A New Polyunsaturated Lipid from Tetrastigma hemsleyanum
Pengfei Jin, Shuo Xu, Hui Hui, Hong‐Quan Duan, Chuan Zhao, Sheng‐An Tang · Химия природных соединений · 2018-05-01
- Bingel Cycloaddition of N-Maleopimarimide-Substituted Amino-Acid Chloromethylketones to Fullerene C60
И. М. Сахаутдинов, R. N. Malikova, Т. Р. Нугуманов, Yu. N. Biglova, A. B. Atangulov, Marat S. Yunusov · Химия природных соединений · 2018-05-01
- Synthesis and Antioxidant Activity of 8-bromo-7-(2-hydroxy-3-aryloxyprop-1-yl)theophyllines
Д. Г. Иванченко, Н. И. Романенко, В. И. Корниенко · Химия природных соединений · 2018-05-01
- A New Aristolactam Alkaloid from Liriodendron tulipifera
C. Y. Chen, C. L. Kao, W. J. Li, Min-Wei Huang, H. T. Li · Химия природных соединений · 2018-05-01
- Bimolecular Compounds Based on Natural Metabolites
С. М. Адекенов, A. S. Kishkentaeva, Ж. Р. Шаймерденова, Г. А. Атажанова · Химия природных соединений · 2018-05-01
- Isoxazolidine Derivatives of Lappaconitine and Talatisamine
Е. М. Цырлина, Т. М. Габбасов, Л. В. Спирихин, Marat S. Yunusov · Химия природных соединений · 2018-05-01
- Constituents of Lithocarpus fohaiensis
Yan Xue, Guoli Huang, Yegao Chen · Химия природных соединений · 2018-05-01
- Secondary Metabolites from the Stems of Ilex cornuta
C. Y. Chen, C. L. Kao, W. J. Li, H. C. Yeh, Shu-Chi Huang, H. T. Li · Химия природных соединений · 2018-05-01
- Synthesis of Optically Active Macrolides From L-Menthone Derivatives and Hydrazides of Adipic and 2,6-Pyridinedicarboxylic Acids
M. P. Yakovleva, K. S. Denisova, Г. Р. Мингалеева, Р. Р. Газетдинов, G. Yu. Ishmuratov · Химия природных соединений · 2018-05-01
- A New Dimeric Ionone from the Unripe Fruits of Capsicum annuum var. conoides
C. Y. Chen, C. L. Kao, W. J. Li, H. C. Yeh, H. T. Li · Химия природных соединений · 2018-05-01
- A New Kaurane Diterpene from the Seeds of Vernonia anthelmintica
Ablajan Turak, Zulipiya Maimaiti, Haji Akber Aisa · Химия природных соединений · 2018-05-01
- Composition and Antioxidant, Anticholinesterase, and Antibacterial Activities of the Essential Oil of Salvia buchananii from Algeria
Khadidja Aya Beladjila, Djemaa Berrehal, Amal Al‐Aboudi, Z Semra, Hala I. Al‐Jaber, Khaldoun Bacharı, Zahia Kabouche · Химия природных соединений · 2018-05-01
- A New Dichlorinated Aromatic Lactone from the Tin Mine Tailings-Derived Fungus Torula sp. YIM DT 10072
Wei‐Xun Chunyu, Jiang‐Yuan Zhao, Zhang‐Gui Ding, Yongxia Wang, Xiu-Lin Han, Minggang Li, Meng‐Liang Wen · Химия природных соединений · 2018-05-01
- Induced Production of Furan Derivatives in a Fungal Endophyte Ceriporia lacerate HS-ZJUT-C13A by the Osmac Method
Hang‐Fei Yu, Fang-Jun Qiu, Yuejun Wang, Yuanyuan Li, Ling Fang, Jianbiao Yao, Zha‐Jun Zhan, Wei‐Guang Shan, You‐Min Ying · Химия природных соединений · 2018-05-01
- Stereoselective Synthesis of the Antileukemic Sesquiterpene (+)-Caparratriene from L-menthol and Tiglic Aldehyde
В. А. Выдрина, А. А. Кравченко, M. P. Yakovleva, Н. М. Ишмуратова, G. Yu. Ishmuratov · Химия природных соединений · 2018-05-01
- Chemical Constituents of Xylem of Sophora japonica Roots
Lei Wu, Wei Xiong, Ju-Wu Hu, Xionghui Li, Jianping Fu, Chuanling Si, Junhui Wang · Химия природных соединений · 2018-05-01
- New Synthetic Method for the Racemic form of the Bean Weevil Acanthoscelides obtectus Male Pheromone
И. М. Сахаутдинов, Aynur M. Gumerov, A. F. Mukhamet’yanova, A. B. Atangulov, Marat S. Yunusov · Химия природных соединений · 2018-05-01