OAK jurnallaridan yig‘ilgan 140147 ta ilmiy maqola: sarlavha, mualliflar, annotatsiya, kalit so‘zlar, DOI va tayyor iqtibos formatlari.
- Анизотропные свойства нановолоконных пористых материалов фиброина шелка и хлопковой целлюлозы
Холмуминов, А.А., Матякубов, Б.М. · O‘zbekiston fizika jurnali · 2019-11-21
The article presents the results of a study on the production of nanofibre anisotropic nanoporous materials based on silk fibroin and cotton cellulose by electrospinning using a rotating screen-receiver of nanofibers in…
- Algorithms for designing processes of electronic interactive services
Radjabov, Ozod · ТАТУ хабарлари · 2019-11-17
Today, the integration of electronic interactive services is based on the correct placement of algorithms to ensure solidarity in information systems, the design stages of information systems based on interactive…
- Dependence of the characteristics of dye-sensitized solar cells on amount tetrapropylammonium iodide
Abdukarimov, А.А., Ikramov, R.G., Mamatkarimov, O.O., Arof, A.K. · O‘zbekiston fizika jurnali · 2019-11-16
In this work, several liquid electrolytes (LE) have been prepared. The electrolytes contain tetrapropylammonium iodide (TPAI) salt with different salt content, propylene carbonate (PC), ethylene carbonate (EC)…
- Influence of the time of irradiation with a high power ultraviolet laser on the spectrum and luminescence intensity of silicon dioxide nanoparticles
Шаймарданов, З.Ш., Курбанов, С.С., Уролов, Ш.З., Жалолов, Р.Р. · O‘zbekiston fizika jurnali · 2019-11-15
Under exposure to UV radiation in SiO2 nanoparticles compressed in the form of tablets, a broadband photoluminescence centered at around 460 nm has been observed. The luminescence intensity depends on the duration of…
- Monocalcium phosphate from Central Cyzylkum phosphorites
Shaymardanova Mohichehra, USMANOV Ilkham, Melikulova Gavkhar, Mirzakulov Kholtura · Kimyo va kimyo texnologiyasi · 2019-11-11
The results of researchers on the obtaining of defluoride monocalsiumphosphate using defluorinated and desulphated extraction phosphoric acid obtained from washed fured phosconcentrate and limestone are presented. The…
- Analysis of experimental research in determining bubbling extractor mixing zones’ sizes
Karimov Ikromali · Kimyo va kimyo texnologiyasi · 2019-11-11
In the inner mixing zone of the tested suspended extractor, the fluid and gas flows in the stream and the external mixing zone moves in a contradictory flow. In order for these mixing zones to operate equally in…
- Development of technology for obtaining liquid synthetic washing means on the basis of local raw material resources
Erkayeva Nazokat, Sharipova Khabiba, Erkayev Aktam, Kucharov Bakhrom · Kimyo va kimyo texnologiyasi · 2019-11-11
The aim of the study is to determine the optimal composition of the composition of synthetic detergents having a high functional property from local raw materials. For the preparation of synthetic detergents as a source…
- Changes in the structure of nucleus, mildness and fries obtained from high and low sorted cotton seeds
Akhmedov Azimjon, Suvanova Fayoza, Sagdullaeva Dilnoza, Аbdurakhimov Saidakbar · Kimyo va kimyo texnologiyasi · 2019-11-11
In order to investigate the characteristics of low-grade cotton seeds process, the process of preparation of cotton seeds by means of pressing process is investigated. The distinctive features of low-grade cotton seeds…
- Influence of the structure of aldehydes on the directions of their reactions with monoethanolamine
Khudoyberdidiev Akhmadali, Khodjayorova Guzal, Adilov Ravshan, Alimukhamedov Muzaffar · Kimyo va kimyo texnologiyasi · 2019-11-11
The article presents the results of studies to identify the nature of aldehydes on the direction of their reaction with monoethanolamine. IR, PMR and NMR13C spectral analyzes have shown that a heterocyclic compound…
- Research authentication of the medical herbals by multispectral analysis
Kaddour Abderrahmane Ait, Safarov Jasur, Dadaev Gani · Kimyo va kimyo texnologiyasi · 2019-11-11
The article discusses the results of the study of the authentication of medicinal herbs by the method of multispectral analysis. The results of the study of the authentication of medicinal herbs motor - Allium motor and…
- The synthesis of heterocyclic derivatives of phenyl(benzoyl) thiourea
Baltabaev Ubaydulla · Kimyo va kimyo texnologiyasi · 2019-11-11
By the reaction of phenylisothiocyanate, halogen-, nitrobenzoylisothiocyanates with 1-methyl-2-aminobenzimidazole in dimethylformamide at 90 ˚C for 5 hours, the corresponding phenyl (benzoyl) thiourea derivatives were…
- Investigation polyphenol composition of liquid extract of “Flegmen”
O Keyhani Nemat, Sidametova Zaynab, Sultonov Bokhodir · Kimyo va kimyo texnologiyasi · 2019-11-11
Defined by qualitative reactions availability of flavonoids, saponins and essential oils in liquid extract of “Flegmen”. The qualitative composition of these compounds by method of paper chromatography in system of…
- Polycondensation type anion-exchange polymers
Yuldashev Alisher, Mutalov Shukhrat, Nazirova Rano, Tursunov Tulkun · Kimyo va kimyo texnologiyasi · 2019-11-11
The influence of the reaction temperature, the ratio of the starting materials, the amount and nature of the solvent and other factors on the polycondensation of melamine with furfural in this present work was…
- Study of heat exchange in a dryer with a vortex pseudo liquefied layer
Suyarova Khilola, Bakhronov Khoshim, Khudoyberdieva Nazora · Kimyo va kimyo texnologiyasi · 2019-11-11
It is established that one of the methods of intensification of convective drying of dispersed materials is the twisting of the drying agent stream. The description of the pilot installation and the result of…
- Influence of the air flow on the heat of combustion purified melted sulfur
Kholmuminov Abdulfatto, Sherniyozov Bobur, Khodzhaeva Nasiba, Akhadov Alisher · Kimyo va kimyo texnologiyasi · 2019-11-11
A sample of sulfur had extracted from sulfur-containing oil and gas processing wastes by washing in water and acetone, dissolved in toluene and appreciated the purity by UV spectroscopy method. Sulfur burning is carried…
- Synthesis and antibacterial activity of iodine containing benzoate derivatives
Jurayev Abdukakhkhar, Mukhamedov Ilamon · Kimyo va kimyo texnologiyasi · 2019-11-11
The interaction of the acid chlorides of benzoic acid derivatives with 1,1,2-triiodopropen-1-ol-3 produced new compounds, iodine-containing benzoic acid derivatives, whose structure was proved by spectral analysis data…
- Bi/Pb superconducting phases, with an elevated superconducting transition temperature, synthesized by solar energy
Gulamova Dilbara · Kimyo va kimyo texnologiyasi · 2019-11-11
Superconductors superconductor line Bi1,7Pb0,3Sr2Ca(n-1)CunO10-δ(n=5,9,12,19) microstructure, phases compositions, critical temperature to superconducting state transition Tc was investigated. Precursors for…
- Photocatalytic properties of almalyk mining company ZnS concentrate
Kadirova Zukhra, Strijevskaya Anna, Hojamberdiev Mirabbos, Daminova Shahlo · Kimyo va kimyo texnologiyasi · 2019-11-11
Mineralogical and chemical compositions of the Almalyk Mining zinc concentrate were studied. Experimental results indicated that sphalerite zinc concentrate can be used as a photocatalyst for decomposition of different…
- Study of the process of ammonization of nitrogen-acid solutions of the leaving of the kaolin clays of the Angren deposit
Kenjayev Mirjalol, Mirzakulov Kholtura, Mamadjаnov Zokir · Kimyo va kimyo texnologiyasi · 2019-11-11
The results of investigations on the ammonization with nitric acid extract of kaolin clays from the Angrene deposit, calcined at 650-700 °C are presented. It is shown that phase aluminum it is absent from the liquido at…
- Benzamide coordination compounds of magnesium nicotinate
Ibragimova Мavluda, Ibadullayeva Тursunoy · Kimyo va kimyo texnologiyasi · 2019-11-11
The synthesis of benzamide coordination compounds of magnesium nicotinate by a mechanochemical method was carried out. The optimal component ratios and the time of the reactions were established. The composition of the…
- Obtaining vinyl acetate by heterogeneous-catalytic method using a new catalyst
Vapoev Khusnitdin, Muhiddinov Bakhodir, Nurmonov Suvonqul, Turdieva Odina · Kimyo va kimyo texnologiyasi · 2019-11-11
The paper presents the results of a study on the production of vinyl acetate in a heterogeneous-catalytic manner in the presence of catalysts of zinc acetate/γ -Al2O3, zinc acetate/activated carbon, PHA, PHA-6, in the…
- Extraction-photometric determination of bismuth (III) with 1-(2-pyridylaze)-2-naphthol
Turabdjanov Sadritdin, Otakuzieva Vazira, Giyasov Anvar, Nargiza Rakhmatullaeva · Kimyo va kimyo texnologiyasi · 2019-11-11
The conditions of selective extraction of the bismuth (III) by inert organic solvents in the presence of DMFA are established. The conditions for complex formation of the bismuth (III) with the PAN directly in the…
- Gradient precipitation of recombinant proteins contained in silkworm larvae (Bombyx mori) with ammonium sulphate
Abdurhakhmanov Jaloliddin, Sasmakоv Sobirdjan, Khasanov Shuhrat, Ashirоv Оybek · Kimyo va kimyo texnologiyasi · 2019-11-11
We investigated the protein extract of silkworm larvae. For the first time, an extract containing proteins from silkworm larvae, obtained by fractional precipitation using ammonium sulfate, was studied. As a result of…
- Sorbents for cleaning of vegetable oils
Oybek Ikromov, Suvanova Fayoza, Jasur Farmonov · Kimyo va kimyo texnologiyasi · 2019-11-11
The article presents the results of the study of adsorbents obtained from rice husk. To increase the sorption capacity of the raw material is treated with hydrogen peroxide for 30 minutes and subjected to roasting…
- Physico-chemical properties of hydrogel based on 1-chloro-3-piperidino-2-propylacrylate
Pulatova Nilufar, Oytura Sitdikovna Maksumova · Kimyo va kimyo texnologiyasi · 2019-11-11
In the article the results of synthesis of the reticulated high molecular connection are rotined on the basis of 1-khlor-3-piperidin-2-propilakrilata, his structure and properties. Influence of different factors is…
- Development of environmentally friendly drilling fluids in order to reduce the anthropogenic impact on the environment
Arslanova Nodirakhon, Arslanov Sharafutdin, Zavorotnyy Vitaliy Leonidovich · Kimyo va kimyo texnologiyasi · 2019-11-11
The article discusses natural clay as a raw material for drilling fluids of the oil and gas industry of the Republic of Uzbekistan. Studied compositions of clays from the Akoy and Navbakhor area (the Republic of…
- Developing of nеw filtr material from rаw materials for the filtration diaсetatе cellulose solution
Kholturaev Bahriddin, Kareva Natalya, Shahobuddinov Sirojiddin, Sarymsakov Abdushkur · Kimyo va kimyo texnologiyasi · 2019-11-11
The new filter-material based on waste of textile industry (WTI) for filtering diacetate cellulose (DС) solution has been developed. Alkaline cooking, hypochlorite and peroxide bleaching of WTI were carried out and…
- Development of the composition and research of anti-corrosive properties of coatings for large-sized technological equipment
Turabdjanov Sadritdin, Rakhmatov Erkin, Li Myung Suk, Umida Ziyamukhamedova · Kimyo va kimyo texnologiyasi · 2019-11-11
The dependence of the polarization resistance on time in salt, acidic and aqueous media of coatings based on epoxy binder filled with kaolin AKF–78, AKS–30, AKT–10 was studied. It has been established that compositions…
- Peculiarities of mullite formation during heat treatment of shale from the Jerdanak deposit
Mkrtchyan Ripsime Vachaganovna, Aripova Mastura Khikmatovna · Kimyo va kimyo texnologiyasi · 2019-11-11
The chemical and mineralogical composition of the clay slate of the Dzherdanak deposit is determined. Four species were investigated in the natural and heat-treated state in the range of 800-1400 °C using the X-ray…
- Enantioselective alkynylation of some cyclical ketones by 3,3′-diphenylbinaphtol dilithium
Otamuxamedova Guzal, Ziyadullayev Odiljon, Shmid Elena, Maniecki Tomash · Kimyo va kimyo texnologiyasi · 2019-11-11
Synthesis of new biologically-active acetylene alcohols containing in composition of their molecules aromatical, cyclical and hydroxyl-groups and also triple bond by reaction of enantioselective alkylation of some…
- Technological features of deodorization of local soybean oil
Khuzhakulova Dilbar, Mazhidov Kakhramon · Kimyo va kimyo texnologiyasi · 2019-11-11
The purpose of the work is to study the technological features of the deodorization of local soybean oil. Deodorization of soybean oil was carried out in laboratory and pilot plants, to analyze the composition of the…
- Bi / Pb room temperature superconducting phases of Тс=291 К, 295 K obtained by solar energy
Gulamova Dilbara, Ashimov Sabir, Chigvinadze Jaba · Kimyo va kimyo texnologiyasi · 2019-11-11
The purpose of the study is to obtain superconducting phases with Ts ≥ 260 K. The advanced “Solar Fast Alloys Quenching-T” technology obtained nanoscale precursors and ceramics of nominal composition Bi1.7Pb0.3 Sr2…
- The study of the alcoholysis regularities of secondary polyethylenethertalate with the mixture of polyhydric
Khudayberdiev Akhmadali, Sayidov Boysayid, Juraev Asror, Alimukhamedov Muzaffar · Kimyo va kimyo texnologiyasi · 2019-11-11
In this article the alcoholysis process conditions of secondary polyethylene terephthalate with the mixture of polyhydric alcohols have been investigated. This study has found that the aggregative state of the products…
- Conjugates of 9- and 11-Halo-Substituted Cytisines with 1′-N-Methylurocanic Acid
П. Р. Петрова, A. V. Koval′skaya, А. Н. Лобов, И. П. Цыпышева · Химия природных соединений · 2019-11-01
- Study of the Low Polar Constituents from the Endophytic Fungus Annulohypoxylon ilanense
Yung‐Shun Su, Ming Cheng, Ming‐Der Wu, Sung Yuan Hsieh, Chee‐Yin Chai, Aij-Li Kwan · Химия природных соединений · 2019-11-01
- Modified Coumarins. 41. Synthesis of Substituted 6-Thiazolylpsoralens
I. P. Dubovik, M. M. Garazd · Химия природных соединений · 2019-11-01
- Accumulation and Excretion Dynamics and Purification of Lipase from Bacteria Pseudomonas aeruginosa A12 Culture Medium
Nodir Sh. Berdiev, Zh. F. Ziyavitdinov, S. S. Bozorov, У. Ж. Ишимов, Sh. S. Olimzhonov, Sh. Zh. Fazliddinov, Ш. И. Салихов · Химия природных соединений · 2019-11-01
- A New Pyrrole Compound from Monascus ruber
Ming‐Jen Cheng, Ming-Der Wu, Tzong‐Huei Lee, Jing‐Ru Weng, Jih‐Jung Chen · Химия природных соединений · 2019-11-01
- A New Alcoholic Compound Isolated from the Leaves of Ginkgo biloba
Penghua Shu, Mengyuan Sun, Haichang Xu, Xue Yang, Haoying Niu, Mingwei Geng, Zhiyu Ju · Химия природных соединений · 2019-11-01
- Anti-Influenza Activity of Several Caryophyllane Hiosesquiterpenoids
Yulia V. Gyrdymova, Eкатерина O. Синегубова, Anna S. Muryleva, Владимир В. Зарубаев, С. А. Рубцова · Химия природных соединений · 2019-11-01
- Triterpenes and Phenolic Compounds from Asparagus burjaticus
Д. Н. Оленников · Химия природных соединений · 2019-11-01
- Synthesis of N-Containing Heterocycles Based on α-Amino Acids. 1. 8,9-Dimethoxy-5,6-Dihydro-3-Phenyl-1-Alkylimidazo[5,1-a]Isoquinolines
Davlat Tukhtaev, A. Sh. Saidov, K. K. Turgunov, Валентина И. Виноградова, Б. Ташходжаев · Химия природных соединений · 2019-11-01
- Synthesis of Guanidine Derivatives of Methylcytisine
П. Р. Петрова, A. V. Koval′skaya, А. Н. Лобов, И. П. Цыпышева · Химия природных соединений · 2019-11-01
- Chemical Constituents of Clausena dunniana var. robusta
Guo-Jing Wu, Yuanfang Sun, Shenglan Zhu, Yongzhen Xiao, Yang-Guo Xie, Ishaq Muhammad, Shikai Yan, Hui‐Zi Jin · Химия природных соединений · 2019-11-01
- Two New Flavones from the Seeds of Arctium lappa and Their Bioactivity
Meng-Jie Liang, Liang Deng, Wan-Li Zeng, Qian Gao, Haiying Xiang, Jing Li, Xin Liu, Qi-Li Mi, Shanshan Hu, Guangyu Yang, Yanping Li, Ya-Dong Guo · Химия природных соединений · 2019-11-01
- Iodination of Cytisine and Methylcytisine Alkaloids
A. V. Koval′skaya, П. Р. Петрова, А. Н. Лобов, И. П. Цыпышева · Химия природных соединений · 2019-11-01
- A New Cadinane Sesquiterpenoid from Funalia trogii
Jian‐Hai Ding, Zheng-Hui Li, Tao Feng, Ji‐Kai Liu · Химия природных соединений · 2019-11-01
- Two New Xanthones from Comastoma pulmonarium and Their Anti-Tobacco Mosaic Virus Activity
Qiu‐Fen Hu, Xiaolong Wang, Wan-Li Zeng, Jin Wang, Yongnan Xu, Haitao Huang, Jing Li, Xin Liu, Guangyu Yang, Xuemei Li, Chengming Zhang, Gang-Peng Li · Химия природных соединений · 2019-11-01
- A New Phenylspirodrimane Dimer Derivative from the Tin Mine Tailings-Associated Fungus Stachybotrys chartarum
Zhang‐Gui Ding, Jian‐Hai Ding, Jiang‐Yuan Zhao, Wei‐Xun Chunyu, Minggang Li, Haibin Wang, Shao‐Jie Gu, Fei Wang, Meng‐Liang Wen · Химия природных соединений · 2019-11-01
- Chemical Constituents of Ainsliaea yunnanensis
Xiang-Lei Wu, Wenquan Lu, Yun‐Heng Shen, Zhi‐Jun Wu, Wansheng Chen · Химия природных соединений · 2019-11-01