Search Results - "Konstantinova, S. A."
-
1
Natural Polymer Additives for Strengthening Packaging Materials
Published in Chemistry and technology of fuels and oils (01-11-2019)“…A natural polymeric material, cellulose nanofibrils (CNFs), that can replace structural additives made of synthetic polymers was studied and characterized. The…”
Get full text
Journal Article -
2
Correction to: Acid and Oxidative Treatment of Raw Material for the Production of Nanofibrillar Cellulose
Published in Chemistry and technology of fuels and oils (01-03-2019)“…In the 4 th paragraph on page 565, the word “molarities” should be replaced with “molalities.” In Fig. 2 on page 566, the y-axis should read “Counts.” In the 3…”
Get full text
Journal Article -
3
N-Arylation of 1,2,4- and 1,3,4-Oxadiazolones under Activated Aromatic Nucleophilic Substitution Conditions
Published in Russian journal of organic chemistry (01-11-2023)“…The possibilities of N -arylation of 1,2,4-oxadiazol-5(4 H )-ones and 1,3,4-oxadiazol-2(3 H )-ones with various electron-deficient chloro- and…”
Get full text
Journal Article -
4
On a disastrous rock pressure criterion for stratified deposit exploitation
Published in Journal of mining science (01-03-2009)“…The paper offers a criterion to estimate geodynamic hazard of underground or surface stratified mineral mining based on the variation of energy stored due to…”
Get full text
Journal Article -
5
A rapid synthesis of nanofibrillar cellulose/polystyrene composite via ultrasonic treatment
Published in Ultrasonics sonochemistry (01-11-2022)“…•Ultrasound accelerates synthesis of nanofibrillar cellulose/polystyrene composite.•High biodegradability of nanofibrillar cellulose/polystyrene…”
Get full text
Journal Article -
6
Changes in the Human Blood System in Patients with COVID-19
Published in Arkhivʺ vnutrenneĭ medit͡s︡iny (22-10-2023)“… As is known, the SARS-CoV-2 virus affects almost all human systems, organs and tissues, causing their damage to a greater or lesser extent. Follow-up of…”
Get full text
Journal Article -
7
N-Arylamino-1,2,4-oxadiazol-5(4H)-ones: Synthesis, Luminescent, Antibacterial, and Antienteroviral Properties
Published in Russian journal of general chemistry (2024)“…Method for the preparation of N -arylamino-1,2,4-oxadiazol-5(4 H )-ones via reduction of N -nitrophenyl-1,2,4-oxadiazol-5(4 H )-ones with tin(II) chloride has…”
Get full text
Journal Article -
8
Micromechanical Characteristics of Karnallite, Sylvinite and Rock Salt at Upper Kama Deposit
Published in Journal of mining science (01-07-2010)“…The authors appraise the test measurements of elastic modulus and micro-hardness of sylvite, halite and carnallite grains on NanoTest-600 unit, and analyze…”
Get full text
Journal Article -
9
Fracturing behavior of feather salt rock samples under compression
Published in Journal of mining science (01-05-2009)“…The paper presents the compression test results for salt rock samples and the study into the stress-strain state of cylindrical samples with different…”
Get full text
Journal Article -
10
Some observations on obtaining cellulose nanocrystals
Published in Fibre chemistry (2012)“…We propose a method for obtaining hydrogels of nanocrystalline cellulose from different types of fiber intermediates. As a result of our experiments, we have…”
Get full text
Journal Article -
11
Acid and Oxidative Treatment of Raw Material for the Production of Nanofibrillar Cellulose
Published in Chemistry and technology of fuels and oils (01-11-2018)“…A sturdy was carried out on nanofibrillar cellulose from unbleached wood pulp using sulfuric acid and ammonium persulfate for acid-oxidative treatment. The…”
Get full text
Journal Article -
12
Process for preparing nanocrystalline cellulose
Published in Fibre chemistry (01-09-2011)“…A process for preparing a dispersion of nanocrystalline cellulose (NCC) particles from various types of plant raw materials that is based on the use of…”
Get full text
Journal Article -
13
Mathematical Modeling of the Stress-Strain State in Rock and Artificial Masses During Slice Chamber Mining of Underpit Reserves in the “Internatsionalnaya” Kimberlite Pipe
Published in Journal of mining science (01-05-2005)“…The statement and solution algorithm are proposed for the problem on the stress-strain state of a kimberlite body, filling massif, and enclosing rock during…”
Get full text
Journal Article -
14
Development of Hereditary Model for Deformation and Failure of Salt Rocks
Published in Journal of mining science (01-01-2004)“…A model is proposed for hereditary elasticity and viscoplasticity of salt rocks. The features of rock sample deformation to be connected with loosening and…”
Get full text
Journal Article -
15
Giant magnetic moments in dilute magnetic semiconductors
Published in Journal of magnetism and magnetic materials (01-03-2008)“…The concentration dependence of the specific magnetic moment value at room temperature in dilute semiconductor titanium oxides doped with either Co or Fe has…”
Get full text
Journal Article -
16
Quantitative determination of the content of venlafaxine and its active metabolite in human plasma using liquid chromatography-mass spectrometry
Published in Фармакокинетика и Фармакодинамика (18-01-2023)“…A validated method for the quantitative determination of venlafaxine, O-desmethylvenlafaxine in human plasma by tandem liquid chromatographymass spectrometry…”
Get full text
Journal Article -
17
Immunoelectron microscopic study of the distribution of porin on outer membranes of rat heart mitochondria
Published in Journal of bioenergetics and biomembranes (01-02-1995)“…The distribution of porin on the outer membranes of rat heart mitochondria has been studied by means of immunogold labelling with antibodies to the N-terminal…”
Get full text
Journal Article -
18
Ferromagnetism of 3-D transition metals solid solutions in titanium oxides
Published in Journal of magnetism and magnetic materials (01-03-2007)“…The structure and magnetic properties of the films of titanium oxides doped with magnetic impurities are investigated both in as-deposited state and after…”
Get full text
Journal Article -
19
Estimating salt rocks rheology by in-situ observations of vertical deformation of interchamber pillars
Published in Journal of mining science (01-01-2007)“…The estimation of the parameters of a linear hereditary model for the sylvinite seam Krasny II at the Upper Kama potassium and potassium-magnesium salt deposit…”
Get full text
Journal Article -
20
Estimate of initial stresses in rock mass of the Upper Kama region based on block hierarchical model
Published in Journal of mining science (01-09-2001)“…Theoretical estimate of regional and local initial stresses in the rock mass of the Upper Kama deposit was made by the finite-element method on the basis of…”
Get full text
Journal Article