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Статті в журналах з теми "Solution concentration"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Sukprasong, Saksit, Yongyut Manjit, Apichart Limpichaipanit, and Athipong Ngamjarurojana. "Inner Filter Effect on Fluorescence Dyes Spectra in Methanol Solution." Key Engineering Materials 675-676 (January 2016): 704–7. http://dx.doi.org/10.4028/www.scientific.net/kem.675-676.704.

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This research was conducted to study the inner filter effect on the fluorescence spectra of fluorescence dyes. The concentration effect on all of fluorescent dye solutions showed the same trend in terms of changes in fluorescence intensity spectra. At low concentrations, the fluorescence intensity increased when the concentration of fluorescent dye solution increased. However, at high concentrations, the fluorescence intensity decreased when the concentration of fluorescent dye solution increased. Interestingly, the result of fluorescence spectra in dye solutions showed that the fluorescence i

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2

Tang, Qingnong, Peter A. Munro, and Owen J. McCarthy. "Rheology of whey protein concentrate solutions as a function of concentration, temperature, pH and salt concentration." Journal of Dairy Research 60, no. 3 (1993): 349–61. http://dx.doi.org/10.1017/s0022029900027692.

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SummaryRheological properties of whey protein concentrate (WPG) solutions were studied in steady shear, using a Bohlin VOR Rheometer, as a function of concentration, temperature, shear rate, shearing time, pH, salt type, salt concentration and solution age. At 22 °C and pH 7, the WPC solutions exhibited Newtonian behaviour up to a concentration of 10% total solids, pseudoplastic behaviour between 10 and 30% and time-dependent shear thinning at 35% and above. The apparent viscosity of solutions at 22 °C and pH 7 was linearly related to concentration up to 8%. The effect of temperature on appare

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3

Asadova, A. H., and E. A. Masimov. "The solution-gel phase transition in aqueous solutions of agarose." Modern Physics Letters B 35, no. 08 (2021): 2150147. http://dx.doi.org/10.1142/s0217984921501475.

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Thermal hysteresis and stability of agarose–water gelling systems were studied by the spectrophotometer for different concentrations at different temperatures. Gelation temperature depends on the concentration of agarose. With the increase in the concentration of agarose gelation temperature, strength of agarose increases too. With the increase in the concentration of polymer solvent–gel phase transition, gel melting happens at higher temperatures. The price of enthalpy was determined (150.0127 KC/mol). In gelation process, the phase separation is completed and in this process, the value of th

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4

Evans, William B., and Darryl D. Warncke. "PHOSPHORUS UPTAKE BY SIX POTATO CULTIVARS." HortScience 27, no. 6 (1992): 614d—614. http://dx.doi.org/10.21273/hortsci.27.6.614d.

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Six potato cultivars (Atlantic, Sebago, Onaway, Russet Burbank, Lemhi Russet,and Norland) were evaluated for phosphorus uptake efficiency in solution culture. Individual rooted cuttings of each cultivar were transferred from a standard 1/5 Hoagland's solution into solutions containing one of six P concentrations (0.05,0.1,0.22,0.5,1.1 and 2.3mg/l). After a 24h adjustment period P uptake was followed over a 6h period by collecting solution aliquots every two hours. All cultivars depleted the two lowest initial P concentrations to similar stable P concentration. The P uptake rate per unit length

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5

Batko, Kornelia M., Izabella Ślęzak-Prochazka, Andrzej Ślęzak, Wioletta M. Bajdur, and Radomir Ščurek. "Modelling of the Electrical Membrane Potential for Concentration Polarization Conditions." Entropy 24, no. 1 (2022): 138. http://dx.doi.org/10.3390/e24010138.

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Based on Kedem–Katchalsky formalism, the model equation of the membrane potential (Δψs) generated in a membrane system was derived for the conditions of concentration polarization. In this system, a horizontally oriented electro-neutral biomembrane separates solutions of the same electrolytes at different concentrations. The consequence of concentration polarization is the creation, on both sides of the membrane, of concentration boundary layers. The basic equation of this model includes the unknown ratio of solution concentrations (Ci/Ce) at the membrane/concentration boundary layers. We pres

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6

Chuang, Ya-Ching, and Yao-Chien Alex Chang. "The Role of Soluble Sugars in Vase Solutions during the Vase Life of Eustoma grandiflorum." HortScience 48, no. 2 (2013): 222–26. http://dx.doi.org/10.21273/hortsci.48.2.222.

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The vase life of Eustoma cut flowers can be extended by adding sugars to the vase solution, but the exact role of sugars and how they are translocated in tissues are not clear. Thus, we observed the preserving effect of different sugars in vase solutions on Eustoma and compared sugar concentrations in vase solutions and in the flowers as well as stems and leaves of cut flowers in a solution containing 200 mg·L−1 8-hydroxyquinoline sulfate (8-HQS) with and without 20 g·L−1 sucrose during different flowering stages. Inclusion of glucose, fructose, or sucrose in the vase solution extended the vas

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7

García-Santiago, Valdez-Aguilar, Cartmill, Cartmill, Juárez-López, and Díaz-Pérez. "Subirrigation of Container-Grown Tomato I: Decreased Concentration of the Nutrient Solution Sustains Growth and Yield." Water 11, no. 10 (2019): 2064. http://dx.doi.org/10.3390/w11102064.

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Subirrigation of containerized vegetable crops is a promising strategy to increase water and fertilizer use efficiency. However, the nutrient solution may cause salts accumulation in the substrate top layer. The objective of this study was to determine the effect of nutrient solution concentration in container-grown tomato under surface drip-irrigation and subirrigation. The plants were irrigated with solutions at concentrations of ‒0.072, ‒0.058 and ‒0.043 MPa (100%, 80% and 60% of Steiner’s nutrient solution, respectively). Except at the highest concentration, the greatest yields occurred in

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8

Jia, Jing Chao, Huan Li, and Qing Tao Bi. "The Influence of Concentration of Pore Water Solution on the Swelling Characteristics of Expansive Soils." Applied Mechanics and Materials 238 (November 2012): 427–30. http://dx.doi.org/10.4028/www.scientific.net/amm.238.427.

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The influences of pore water solution concentration on the swelling properties of expansive soils were studied using the constant volume swelling pressure experiments and swelling ratio experiments under load. The results indicate that the swelling pressures decrease with the increase of solution concentration. Two specimens made by the same solutions concentration were immersed into solutions with two various concentrations to prepare specimen, one is smaller than the concentration of solution, and the other is same to that. The results show that the swelling pressures and the swelling strain

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9

Liu, Ziqian, Seeram Ramakrishna, Ifty Ahmed, Chris Rudd, and Xiaoling Liu. "Rheological, Surface Tension and Conductivity Insights on the Electrospinnability of Poly(lactic-co-glycolic acid)-hyaluronic Acid Solutions and Their Correlations with the Nanofiber Morphological Characteristics." Polymers 14, no. 20 (2022): 4411. http://dx.doi.org/10.3390/polym14204411.

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In this study, solutions were prepared with fixed concentrations of hyaluronic acid (HA) but varied concentrations of poly (lactic-co-glycolic acid) (PLGA) to emphasize the effects of PLGA concentration and HA addition on solution properties and to further evaluate their electrospinning performance. The dependence of specific viscosity on PLGA concentration was studied to determine the concentration regimes and evaluate the critical concentration (Ce) for successful fiber generation. The Ce of PLGA solutions is 12.07% compared to 10.09% for PLGA-HA solutions. Blending with HA results in a lowe

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10

Chiang, Chia-Chin, and Jian-Cin Chao. "Whispering Gallery Mode Based Optical Fiber Sensor for Measuring Concentration of Salt Solution." Journal of Nanomaterials 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/372625.

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An optical fiber solution-concentration sensor based on whispering gallery mode (WGM) is proposed in this paper. The WGM solution-concentration sensors were used to measure salt solutions, in which the concentrations ranged from 1% to 25% and the wavelength drifted from the left to the right. The experimental results showed an average sensitivity of approximately 0.372 nm/% and anR2linearity of 0.8835. The proposed WGM sensors are of low cost, feasible for mass production, and durable for solution-concentration sensing.

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11

Chiampo, Fulvia. "Performance of a freeze concentration pilot plant during the start-up phase." Czech Journal of Food Sciences 36, No. 5 (2018): 410–14. http://dx.doi.org/10.17221/313/2017-cjfs.

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In this paper are presented the findings obtained during the start-up of a freeze concentration pilot plant, that operated with suspension crystallisation and with simulated fruit juices. Solutions with different initial concentrations were tested, with and without acidification, to simulate fruit characteristics and behaviour. The experimental runs demonstrated that solution acidity has negligible effects on the process performance, whereas the results showed that the initial solution concentration influences the start-up duration. During this time, the solution concentration grows by about 1

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12

Buccolieri, Alessandro, Antonio Serra, Gabriele Giancane, and Daniela Manno. "Colloidal solution of silver nanoparticles for label-free colorimetric sensing of ammonia in aqueous solutions." Beilstein Journal of Nanotechnology 9 (February 9, 2018): 499–507. http://dx.doi.org/10.3762/bjnano.9.48.

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Silver nanoparticles were synthesized in the presence of saccharides and ammonia (NH3) in the concentration range from 10−2 to 103 ppm to develop an optical sensor for NH3 in aqueous solutions. Ammonia affects the features of the nanoparticles obtained in a concentration-dependent manner as determined by UV–vis absorption analysis and TEM observations. Structural and morphological analysis provides the basis for the production of a colorimetric label-free sensor for ammonia. Overall, surface plasmon resonance increases when ammonia concentration rises, although the functional trend is not the

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13

Wang, Xiahui, Wenjie Ye, Xiye Chen, Qinghua Chen, Guowang Xu, and Yukuai Liu. "Liquid Concentration Measurement Based on Liquid Contact Angle." Journal of Physics: Conference Series 2459, no. 1 (2023): 012027. http://dx.doi.org/10.1088/1742-6596/2459/1/012027.

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Abstract Different concentrations of the same liquid or liquids with different solutes have different surface tensions. The macroscopic phenomenon is that they have different wetting effects on the same solid surface. The liquid contact angle can describe the wetting effect. Therefore, this paper proposes a method for measuring the liquid concentration using the liquid contact angle. A glass plate with a hydrophobic layer and an angle-measuring device forms the detection part. The glass plate is placed horizontally, and the solution to be tested is dropped on the surface of the glass plate. So

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14

Arefiev, S. V., A. Yu Bruslov, and A. V. Denisov. "Improvement of In-situ CO2 generation technology with compensation of chemicals concentration technological losses." Bulletin of Russian academy of natural sciences 24, no. 1 (2024): 47–56. http://dx.doi.org/10.52531/1682-1696-2024-24-1-47-56.

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The paper is about the enhanced oil recovery technology, based on in-situ carbon dioxide generation, after stoichiometric reaction between gas releasing chemical agent and gas producing one. Two ways of technology improvement are considered: for more uniform in-situ CO2 generation and for more safety when chemicals injection. Both ways require sufficient increase of buffer water, which divides reactive chemicals. Larger buffer water volumes, when being mixed with chemicals water solutions, sufficiently drop down chemical concentration. It also decreases CO2 concentration in water solution. Fin

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15

Didik, Lalu A., Irfan Safarwadi, and Muslimah Muslimah. "Pengukuran Indeks Bias Larutan untuk Mengetahui Kadar Gula dalam Tebu dengan Menggunakan Metode Difraksi Fraunhofer Celah Tunggal." KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA 6, no. 1 (2021): 35–42. http://dx.doi.org/10.20414/konstan.v6i1.68.

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Refractive index measurements of sugar solutions have been carried out in several concentrations. The method used is fraunhofer diffraction. The equation of relationship between the concentration of the sugar solution and the refractive index based on the results of the linear fitting can be written as, Where n is the refractive index of the sugar solution and x is the solution concentration. From this equation, a fairly small gradient value of 1.59145 is obtained. This shows that a 1% increase in the concentration of the sugar solution will cause the refractive index to decrease by 1.59

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16

Huang, Zhi Quan. "Influence of Existing State of Pore Aqueous Solution on the Swelling Pressure of Expansive Soils." Advanced Materials Research 919-921 (April 2014): 693–96. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.693.

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The paper studies the influences of pore aqueous solution on the swelling pressure of expansive soils through the constant volume swelling pressure experimental experiment. The results indicate that the swelling pressures decrease with the increasing of solution concentration. In the experiment, two specimens made of the same solutions concentration are immersed into solutions with two different concentrations, one less than the solution concentration used to prepare specimen, and the other same to that. The results shows that the swelling pressures of two specimens gained from the experiment

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17

Xia, Hui Fen, Jiu Ran Zhang, Wen Guo Ma, Xia Ning Li, and Qiu Yue Yang. "Experimental Research on the Quantitative Characterizations of Elasticity and Viscosity of Polyacrylamide Solution." Advanced Materials Research 430-432 (January 2012): 992–95. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.992.

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Through creep-recovery and dynamic experiments, the viscoelasticity of polyacrylamide solutions (in short polymer) with different mass concentration are studied, the proportions of elastic part and viscous part in the polymer solution are calculated and the limit of mass concentration called high concentration polymer solution is given. It is indicated that the elastic part of the polymer solution increases firstly and tends to be constant with the increase in mass concentration under low external force condition. The minimum mass concentration of the polymer solution keeping constant elastic

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18

Diatloff, E., CJ Asher, and FW Smith. "Concentrations of rare earth elements in some Australian soils." Soil Research 34, no. 5 (1996): 735. http://dx.doi.org/10.1071/sr9960735.

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Total, exchangeable, and soil solution concentrations were measured for 15 rare earth elements (REEs) in 9 soils from Queensland and New South Wales. In a further 10 acid soils, effects of amendment with CaCO3 or CaSO4 . 2H2O were measured on the concentrations of REEs in soil solution. The total concentration of the REEs in soil solutions from unamended soils ranged from below the detection limit (0.007 µM) to 0.64 µM. Lanthanum (La) and cerium (Ce) were the REEs present in the greatest concentrations, the highest concentrations measured in the diverse suite of soils being 0.13 µM La and 0.51

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19

Yanti, Selvia Sofi, Muhimatur Rosida, Ketut Sumada, Caecilia Pujiastuti, and Suprihatin Suprihatin. "Study of Crystallization Process of Potassium Chloride (KCl) Solution with Ethanol Solution." G-Tech: Jurnal Teknologi Terapan 9, no. 1 (2025): 40–48. https://doi.org/10.70609/gtech.v9i1.5628.

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This study develops a method for producing KCl fertilizer from KCl waste generated during the industrial production of calcium oxide, with KCl concentrations in the wastewater ranging from 7-10%. The main objective of this research was to investigate the effect of ethanol concentration and crystallization time on pore diameter, KCl content, and the amount of product produced. The study was conducted in two stages: evaporation and crystallization. In the evaporation stage, the KCl waste was heated until it reached a saturated solution. In the crystallization stage, ethanol solution was added as

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20

Mironenko, Natalia V., Irina V. Shkutina, and Vladimir F. Selemenev. "PECULARITIES OF MICELLE FORMATION OF PENTACYCLIC GLYCOSIDES IN AQUEOUS SOLUTIONS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 64, no. 4 (2021): 26–33. http://dx.doi.org/10.6060/ivkkt.20216404.6347.

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The regularities of changes in structural characteristics during the formation of associates in micellar aqueous solutions of triterpene saponins Quillaja Saponin and Sapindus Mukorossi are considered. The dependence of surface tension and adsorption on the concentration of an aqueous saponin solution is analyzed, and the values of surface activity and parameters of the adsorption layer are calculated. The average values of diffusion coefficients for spherical and cylindrical micelles are determined based on the measurement of the solution viscosity. The effect of the electrolyte solution on t

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21

Mdemagh, Yassine, Amor Hafiane, and Ezzedine Ferjani. "Characterization and modeling of the polarization phenomenon to describe salt rejection by nanofiltration." 4open 1 (2018): 5. http://dx.doi.org/10.1051/fopen/2018005.

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In this work, dead-end filtration was applied to the nanofiltration of synthetic ionic solutions. In order to study the phenomenon of polarization in the boundary layer, we chose NaCl, CaCl2 and Na2(SO4) solutions to pH = 6.8 which concentrations varies from 0.3 to 1.5 g L−1 and the filtration pressure varied from 6 to 16 bar. In this study, the results of these experiments show a correlation between the initial concentration of the solution and the pressure applied with the polarization. The polarization intensifies for the high concentrations and pressures. The ionic balance between the micr

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22

Akimova, A. A., V. A. Lomovskoy, and I. D. Simonov-Emel’yanov. "Aqueous polyvinyl alcohol solution foaming at different molecular masses." Fine Chemical Technologies 16, no. 4 (2021): 337–44. http://dx.doi.org/10.32362/2410-6593-2021-16-4-337-344.

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Objectives. Investigation of aqueous polyvinyl alcohol (PVA) foaming process and the influence of its water solution structure, when possessed of different molecular weights and concentrations, on foaming multiplicity.Methods. Solution foaming analysis was performed on the data of dynamic light scattering obtained on the Zetasizer Nano particle analyzer.Results. In this work, the foaming ability and foaming multiplicity of aqueous PVA solutions (as a main component for obtaining special-purpose foams) have been studied. It is shown that PVA solutions in water are colloidal dispersed systems co

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23

Wood, Nathan, Esther I. Doria, Taieba Tuba Rahman, Wanhe Li, Zhijian Pei, and Hongmin Qin. "Effects of Calcium Chloride Crosslinking Solution Concentration on the Long-Term Cell Viability of 16HBE14o- Human Bronchial Cells Embedded in Alginate-Based Hydrogels." Biomimetics 10, no. 1 (2025): 40. https://doi.org/10.3390/biomimetics10010040.

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In this preliminary study, the long-term effects of calcium chloride crosslinking concentration on viability of 16HBE14o- human bronchial epithelial cells embedded in alginate-extracellular matrix (ECM) or alginate–methylcellulose–ECM hydrogels have been investigated. There is currently a limited understanding regarding the effects of crosslinking solution concentration on lung epithelial cells embedded in hydrogel. Furthermore, the effects of calcium chloride concentration in crosslinking solutions on other cell types have not been reported regarding whether the addition of viscosity and stif

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24

Aldosari, F., A. M. Azzeer, and A. M. Hassib. "Optical and Photoacoustic Properties of Colloidal Silver Nanoparticles Solutions." Journal of Materials Science Research 7, no. 4 (2018): 1. http://dx.doi.org/10.5539/jmsr.v7n4p1.

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The study has aimed to investigate optical and photoacoustic properties of some colloidal silver nanoparticles at different concentration over the time. The phase purity with crystal structure of silver nanoparticles were studied using X-ray diffraction (XRD) and was confirmed by Transmission Electron Microscopy (TEM). Optical property was changed during the variable concentration of nanoparticles and duration time of sample. The absorbance of silver colloidal solutions is increased, when concentration increases but decreased with respective to the longer period of sample. Absorption peaks and

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25

Gevelyuk, S. A., E. Rysiakiewicz-Pasek, and I. K. Doycho. "DEPENDENCE OF PHOTOLUMINESCENCE OF NANOPARTICLE ENSEMBLES OF STANNUM (IV) COMPLEXES IN SILICA POROUS MATRIX ON CONCENTRATION OF SATURATING SOLUTION." Photoelectronics, no. 25 (December 25, 2016): 40–47. http://dx.doi.org/10.18524/0235-2435.2016.25.157570.

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Dependence of photoluminescence of high-molecular nanoformations of dyes on the basis of stannum (IV) complexes in porous glass on concentration of saturating solution has been researched. The results have been compared with photoluminescence of corresponding solutions, in which the effect of concentration quenching, was due to the Franck-Condon principle, was observed. It was found that intensity of luminescence for nanoparticle ensembles was always higher than in solution. At that, decrease of luminescence intensity alongside with concentration growth of saturating solution was observed as w

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26

Elamin, Osman M., and Gerald E. Wilcox. "Effect of Magnesium and Manganese Nutrition on Watermelon Growth and Manganese Toxicity." Journal of the American Society for Horticultural Science 111, no. 4 (1986): 588–93. http://dx.doi.org/10.21273/jashs.111.4.588.

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Abstract Watermelon [Citrullus lanatus (Thunb.) ‘Sugar Baby’ was grown in sand culture to evaluate Mn uptake as affected by solution concentration of Mn and Mg. Manganese toxicity symptoms were developed first on the lower mature leaves as small, distinct, blackish-brown speckling on the lower leaf surface that progressed to extensive vein browning and necrotic lesions. Leaves developed toxicity symptoms when they contained ≥1325 mg·liter−1 Mn. Growth was reduced at Mn concentrations in nutrient solution ≥22.5 mg·liter−1. Development of Mn toxicity symptoms was delayed with increasing Mg conce

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27

Singh, Virpal. "PHYSICOCHEMICAL PARAMETERS STUDY OF CHITOSAN-STARCH-GLUTARIC ACID IN ACETIC ACID-WATER MIXTURES." Green Chemistry & Technology Letters 2, no. 4 (2016): 180. http://dx.doi.org/10.18510/gctl.2016.243.

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Knowledge of the physicochemical parameters values produced by the utilization of the polymer blends is importantbecause of the effect that it has on the operational cost of several stages of the industrial processChitosan/starch solutions of different variable concentrations from (90/10 to10/90) are prepared in dilute acetic acid solution (1%). Glutaric acid solution concentration is 1% fixed. The solution properties such as viscosity and refractive index are measured. Viscosity of Chitosan-Starch-Glutaric acid solution is measured by Brookfield viscometer modal DV-E version 1.00 and refracti

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28

Ivanov, Evgeniy, Boris Gorbunov, Aleksander Pasin, Boris Arjutow, and Alexey Novozhilov. "Efficiency Evaluation of Cavitation Heat Generator Used for Desalination of Saline Solutions." Jurnal Kejuruteraan 34, no. 1 (2022): 139–48. http://dx.doi.org/10.17576/jkukm-2022-34(1)-13.

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Nowadays, the issue of efficient desalination and treatment of seawater for its further use in various domains of human activity is of much interest worldwide. There are plenty of known treatment techniques. This research paper discusses the method of hydrodynamic cavitation treatment in a heat generator in various modes and proves the performance efficiency of this method. The process of treating saline solutions of different concentrations and registration of electric conductivity of solutions are studied. The possibility of changing the concentration of salt in the solution by treating it i

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29

Sugito, Heri, Ketut Sofjan Firdausi, Ali Khumaeni, and Syifa Azahra. "Characteristics of colloid silver solution based on changes in concentration and electric field using electrooptic equipment." Journal of Physics and Its Applications 4, no. 1 (2021): 20–23. http://dx.doi.org/10.14710/jpa.v4i1.12419.

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Research on the characteristics of colloidal silver solutions based on changes in concentration and electric field using electrooptic devices has been carried out. The purposes of this study was to determine the characteristic of colloidal silver solution based on variations in concentration and electrooptic effects. Electrooptics work based on changes in the polarization angle of the sample. The sample used is a colloidal silver solution with various concentrations. The colloidal silver solution was obtained by laser ablation method and then dissolved in aquabidest. The light source used is a

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30

Feriani, Mariano, Jutta Passlick-Deetjen, and Giuseppe La Greca. "Factors Affecting Bicarbonate Transfer with Bicarbonate-Containing CAPD Solution." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 15, no. 4 (1995): 336–41. http://dx.doi.org/10.1177/089686089501500409.

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Objective To evaluate bicarbonate fluxes across the peritoneal membrane and bicarbonate gain in patients treated with continuous ambulatory peritoneal dialysis (CAPD) using dialysis solutions with different bicarbonate concentrations. Patients and Design Ninety-seven exchanges, using different dwell times and glucose and bicarbonate concentrations were performed in 43 stable CAPD patients. Dialysate effluent bicarbonate concentration and volumes were measured at different dwell times. Net dialytic bicarbonate gain was calculated. Patients’ acid-base status was determined at the middle of the d

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31

Fuduley, N. O., and O. V. Khorolskyi. "Volumetry of aqueous albumin solutions in the vicinity of a specific point." Physics of Aerodisperse Systems, no. 62 (December 25, 2024): 57–61. https://doi.org/10.18524/0367-1631.2024.62.320206.

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The paper presents the results of a study on the density and contraction of aqueous solutions of human serum albumin as a function of solution concentration. The obtained dependence of the pH of the solutions on concentration, when diluting pharmacological forms of albumin at maximum concentrations, confirms the presence of a specific point in the simple subsystem of blood – the water-albumin solutions with a concentration of 0.06 g/ml, above which it can be considered as one of the factors of blood homeostasis. It is shown that dilution of pharmacological forms at maximum concentrations of 20

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32

Isnanda, Nuriskasari, Handaya Devi, Syifa Prayogi Adila, In Mustopa In, Sonya Sihombing Tania, and Tendi Noer Ramadhan Mochammad. "THE EFFECT OF DIFFERENT TYPES OF ELECTROLYTES AND CONCENTRATION ON ELECTROCHEMICAL GRAPHENE SYNTHESIS USING SOLENOID REACTOR." AUSTENIT 15, no. 1 (2023): 63–68. https://doi.org/10.5281/zenodo.7964430.

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<em>Graphene plays a significant role as the main raw material for supercapacitor production, which is highly demanded due to its high electrical conductivity for technological development. Therefore, research has been conducted to accelerate the production process of graphene in the electrochemical method. This method requires several main components, namely electrolyte solution, electrode, and power suplai. This study aims to determine the effect of the type of electrolyte solution, consisting of strong acids namely Sulfuric Acid (H<sub>2</sub>SO<sub>4</sub>) and Hydrochloric Acid (HCl), and

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33

Kang, Jong-Goo, and Marc W. van Iersel. "Nutrient Solution Concentration Affects Shoot: Root Ratio, Leaf Area Ratio, and Growth of Subirrigated Salvia (Salvia splendens)." HortScience 39, no. 1 (2004): 49–54. http://dx.doi.org/10.21273/hortsci.39.1.49.

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To evaluate the effects of nutrient concentration and pH of the fertilizer solution on growth and nutrient uptake of salvia (Salvia splendens F. Sellow ex Roem. & Schult. `Scarlet Sage'), we grew plants with five different concentrations of Hoagland nutrient solution [0.125, 0.25, 0.5, 1.0, and 2.0× full strength; electrical conductivity (EC) of 0.4, 0.7, 1.1, 2.0, and 3.7 dS·m-1, respectively]. In a concurrent experiment, plants were subirrigated with modified Hoagland solution at 0.5× concentration and one of five solution pH values: 4.4, 5.4, 6.4, 7.2, and 8.0. Shoot and total dry weigh

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34

Cosme, Christiano Rebouças, Nildo Da Silva Dias, Karen Mariany Pereira Silva, John Lenon Vasconcelos Fonteles, Marcelo Tavares Gurgel, and Cleyton Dos Santos Fernandes. "Growth of melon cultivated in coconut fiber under different concentrations of nutrient solution." Comunicata Scientiae 9, no. 3 (2018): 381–92. http://dx.doi.org/10.14295/cs.v9i3.2736.

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To evaluate the effects of applying different concentrations of the nutrient solution macronutrients in growth of melon cultivated in coconut fiber it was conducted this experiment uses the ‘Galia’ melon (Cucumis melo L., hybrid Babilonia RZ F1). The experimental design was a randomized blocks utilizing five treatments, which corresponded to different concentrations of macronutrients in nutritive solutions (corresponding to different levels of nutrient solution macronutrients) based on the standard solution for the melon proposed by Furlani: 100 (control), 75, 50, 25, and 12.5%, applied in fiv

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35

Ali Elgheryani, Najla. "Improving the flexibility, electrical conductivity and light absorption of carboxymethylcellulose and polyvinyl alcohol solutions and thin films by the addition of different concentrations of citric a." مجلة العلوم الاساسية و التطبيقية, no. 18 (July 8, 2024): 67–75. https://doi.org/10.36602/jsba.2024.18.67.

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The aim of this research is to improve certain physical properties of carboxymethylcellulose, polyvinyl alcohol and benefit from this improvement in many areas. CMCHV and PVA solutions were prepared by dissolving them in twice-distilled water, then different concentrations of citric acid (0.0, 40, 57, 66, 72%) were added, also a new solutions for the samples were prepared in the same way then the solutions were poured onto a level glass plate and allowed to dry at room temperature (30oC), so thin films almost 0.01 mm thick were formed. After that, the ultraviolet absorbance of the solutions, t

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36

Yamagami, Mutsumi, and Masumi Yanai. "EFFECT OF RICE PLANT ROOT TTC-REDUCING ACTIVITY ON THE CHEMICAL FORM OF IODINE IN CULTIVATED SOIL SOLUTIONS." Radiation Protection Dosimetry 198, no. 13-15 (2022): 1189–95. http://dx.doi.org/10.1093/rpd/ncac149.

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Abstract This study aimed to evaluate the effect of rice plant root activity on the chemical form of stable iodine (I) in a cultivated soil solution. Concentrations of I−, IO3− and organic-I were analyzed 4 days after exposure I− or IO3− solutions to each of the cultivated soil surface. When exposed to I−, its concentration in the cultivated soil was approximately the same as that in the non-planted soil. When the rhizosphere was exposed to IO3−, the I− concentration in the soil increased under cultivation conditions. IO3− remained undetected in the soil solution. The organic-I concentration i

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37

Chen, Yanshuang, Qin Chen, Hong Mao, et al. "Preparation of magnetic nanoparticles via chemically induced transition." Nanomaterials and Nanotechnology 7 (January 1, 2017): 184798041668716. http://dx.doi.org/10.1177/1847980416687164.

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Using an FeOOH/Mg(OH)2 precursor, maghemite-based magnetic nanoparticles can be prepared by a chemically induced transition in an Iron(II) chloride (FeCl2) treating solution. FeCl2 solutions of various concentrations were used to investigate the dependence of sample components and magnetization on the treating solution. The bulk chemical species, crystal structures, surface chemical components, morphologies, and specific magnetizations of the samples were characterized. When the concentration of FeCl2 solution was in a moderate range of 0.060–0.250 M, maghemite nanoparticles coated by hydromol

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38

Beata, Rutkowska, Szulc Wiesław, Spychaj-Fabisiak Ewa, and Pior Natalia. "Prediction of molybdenum availability to plants in differentiated soil conditions." Plant, Soil and Environment 63, No. 11 (2017): 491–97. http://dx.doi.org/10.17221/616/2017-pse.

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The aim of the study was to assess of plant available molybdenum (Mo) resources in the solutions of soils as well as to evaluate the effects of selected soil properties on changes of the Mo concentration in the soil solution. Sixty-two soil samples were investigated. The soil solutions were obtained by modified vacuum displacement method. The results showed that Mo concentrations in the soil solutions were much differentiated, ranging from 0.002 to approximately 0.100 µmol/L. Positive correlations were found between soil solution Mo concentration and soil pH as well as the contents of availabl

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39

Graham, C. Lynn, George E. Dukes, Cheng-Fang Kao, Jeanne M. Bertch, and Lawrence J. Hak. "Stability of Ondansetron in Large-Volume Parenteral Solutions." Annals of Pharmacotherapy 26, no. 6 (1992): 768–71. http://dx.doi.org/10.1177/106002809202600603.

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OBJECTIVE: To determine the stability of ondansetron hydrochloride in large-volume parenteral solutions under four storage and time-period conditions. DESIGN/METHOD: Ondansetron was added to each of the following commercially available solutions to make final concentrations of approximately 24 and 96 μg/mL: NaCl 0.9%, D5W, and lactated Ringer's solution. SETTING: University analytical laboratory. MAIN OUTCOME MEASURES: Each solution was studied at both concentrations under the following conditions: (1) 1 day refrigerated, 2 days room temperature; (2) 7 days refrigerated, 2 days room temperatur

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40

Gurov, A. A., S. V. Kozhevnikova, A. N. Ozhogina, and S. N. Solovyev. "Nickel Sulfate Aqueous Solutions Thermal Chemistry and Enthalpy of Ni2+ Cation Formation at the Temperature 298.15 K." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 1 (88) (February 2020): 93–99. http://dx.doi.org/10.18698/1812-3368-2020-1-93-99.

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Calorimeter with an isothermal shell was used at a temperature of 298.15 K to measure the following parameters: enthalpy of NiSO4(k) dissolution in water followed by generation of two molar concentration solutions; enthalpy of four NiSO4 aqueous solutions dilution having various molar concentrations followed by generation of solutions with approximately the same concentration values. Based on the data obtained, enthalpy and ion association constant in the NiSO4 aqueous solution, as well as standard enthalpy of the aqueous solution formation, were determined for the indicated compound. The latt

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41

Rahimi Tanha, Nadia, and Mahdi Nouri. "An experimental study on the coaxial electrospinning of silk fibroin/poly(vinyl alcohol)–salicylic acid core-shell nanofibers and process optimization using response surface methodology." Journal of Industrial Textiles 48, no. 5 (2017): 884–903. http://dx.doi.org/10.1177/1528083717747334.

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Core-shell nanofiber of silk fibroin as shell and blend of salicylic acid/poly(vinyl alcohol) as core was fabricated successfully via coaxial electrospinning. Effects of concentration, viscosity, and electrical conductivity of the core and shell solutions on the final diameter of nanofibers and release behavior of salicylic acid were studied by viscometry, electrical conductometry, ultraviolet spectrophotometry, scanning electron microscope and transmission electron microscope methods. Response surface methodology was used to predict the relation between average fiber diameter as well as relea

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42

Tong, Fei, Kyusang Kim, Yaqi Wang, et al. "Growth of ZnO Nanorod Arrays on Flexible Substrates: Effect of Precursor Solution Concentration." ISRN Nanomaterials 2012 (July 31, 2012): 1–7. http://dx.doi.org/10.5402/2012/651468.

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We report a low-temperature aqueous solution growth of uniformly aligned ZnO nanorod arrays on flexible substrates. The substrate is Indium Tin Oxide (ITO) film coated on polyethylene terephthalate (PET). Solutions with five different concentrations of the precursors with equimolar Zinc Nitrate and Hexamethylenetetramine (HMT) in distilled water were prepared to systematically study the effect of precursor solution concentration on the structural and optical properties of ZnO nanorods. It was concluded that the precursor concentration have great influence on the morphology, crystal quality, an

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43

Liu, De Chun, and Ya Ping Zhang. "Membrane Potentials across the Cation Exchange Membrane in Aqueous Mixed Electrolyte Solutions." Advanced Materials Research 476-478 (February 2012): 1825–28. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.1825.

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Membrane Potentials across the Cation Exchange Membrane in Aqueous Mixed Solutions Made of Two Kinds of Electrolytes Were Experimentally Studied. Effects of both the Concentration and the Species of Electrolytes on Membrane Potentials Were Presented. for any Mixed Solution Made of Two Kinds of Electrolytes, when the Total Electrolyte Concentration at Right Side of the Membrane Is Fixed, the Membrane Potential Increases with the Total Electrolyte Concentration at Left Side of the Membrane. however, such Increase Is Rather Slight at both Low and High Concentrations. when the Concentrations at ea

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44

Laborie, Sophie, Jean-Claude Lavoie, Marjolain Pineault, and Philippe Chessex. "Contribution of Multivitamins, Air, and Light in the Generation of Peroxides in Adult and Neonatal Parenteral Nutrition Solutions." Annals of Pharmacotherapy 34, no. 4 (2000): 440–45. http://dx.doi.org/10.1345/aph.19182.

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OBJECTIVE: To compare the concentrations of peroxides between adult and neonatal total parenteral nutrition (TPN) solutions in response to protection against inducers of peroxidation such as multivitamins and exposure to light or air. METHODS: Peroxide concentrations were measured in freshly prepared adult and neonatal solutions of fat-free TPN in four settings: with or without an air inlet, and protected or unprotected from ambient light. An oxygen washout was performed by exposing a fat-free neonatal TPN solution to a continuous flow of nitrogen. RESULTS: Globally, light was the main inducer

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45

Randle, W. M. "Increasing Nitrogen Concentration in Hydroponic Solutions Affects Onion Flavor and Bulb Quality." Journal of the American Society for Horticultural Science 125, no. 2 (2000): 254–59. http://dx.doi.org/10.21273/jashs.125.2.254.

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To test the effects of high nitrogen (N) fertilization levels on onion quality and bulb flavor, `Granex 33' onions (Allium cepa L.) were greenhouse grown in hydroponic solution culture with increasing N concentrations. Nitrogen was adjusted in the solutions with NH4NO3 and increased incrementally from 0.22 g·L-1 to 0.97 g·L-1 over five treatments. Plants were harvested at maturity and subjected to quality, flavor, and mineral analysis. As solution N increased, bulb fresh weight and bulb firmness decreased linearly. Gross flavor intensity, as measured by enzymatically developed pyruvic acid (EP

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46

Suárez, Encarnación C., and Jana R. Grippi. "Comparative Bioavailability and Safety of Two Intramuscular Ceftriaxone Formulations." Annals of Pharmacotherapy 30, no. 11 (1996): 1223–26. http://dx.doi.org/10.1177/106002809603001101.

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OBJECTIVE: To determine if two ceftriaxone solutions of different concentrations are bioequivalent when administered intramuscularly. DESIGN: Double-blind, single-dose, two-period, randomized crossover study. SETTING: A clinical research center. SUBJECTS: Seventeen healthy volunteers. INTERVENTION: Ceftriaxone 500 mg administered in either 2 or 1.4 mL of lidocaine 1% solution, with final ceftriaxone concentrations of 250 and 350 mg/mL, respectively. MAIN OUTCOME MEASURES: Blood samples were assayed for ceftriaxone concentrations with HPLC and pharmacokinetic parameters were calculated from the

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47

Matula, J. "Relationship between phosphorus concentration in soil solution and phosphorus in shoots of barley." Plant, Soil and Environment 57, No. 7 (2011): 307–14. http://dx.doi.org/10.17221/149/2011-pse.

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Phosphorus concentration in the soil solution of agricultural soils should be a consensus of the agronomic and environmental aspect. Data from literary sources are inconsistent if the method of soil solution extraction from the soil and the method of phosphorus detection are not indicated. In the present paper a simplified procedure of soil solution extraction is used that is derived from the need of water to attain saturated soil paste. Based on barley cultivation in a plant growth chamber on 72 different soils the relationship between P concentration in simulated soil solution and the respon

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48

Sornsuvit, Chuleegone, Purida Wientong, Suriyon Uitrakul, Siriporn Okonogi, and Wasan Katip. "Influence of Concentration and Temperature on Stability of Imipenem Focused on Solutions for Extended Infusion." Dose-Response 19, no. 4 (2021): 155932582110593. http://dx.doi.org/10.1177/15593258211059325.

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Background Imipenem remains active against most Gram-positive and Gram-negative organisms. This study aimed to evaluate chemical stability of imipenem in 2 commonly used concentrations when stored in 3 various temperatures. Methods Imipenem injection powder was used to prepare 5 mL and 10 mg/mL of imipenem in .9% sodium chloride solution. Prepared solutions in PVC bags were stored at 25°C, 30°C, and 40°C. The solutions were investigated over 0, 1, 2, 3, 4, and 6 hours using HPLC analysis. The association between drug stability, temperature, and concentration was determined. Results The 5 mg/mL

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Li, Yan, Yasheng Luo, Songtao Hu, Jianglin Gao, and Chaojie Wang. "Effect of Alkali Seepage Erosion on Physical and Mechanical Properties of Laterite." Advances in Materials Science and Engineering 2021 (October 1, 2021): 1–10. http://dx.doi.org/10.1155/2021/8002984.

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Using a modified permeameter, laterite samples that were corroded and permeated by alkaline solutions at different concentrations for varying amounts of time were subjected to triaxial compression tests, chemical composition analysis, particle composition tests, and microstructure analysis. The results showed that the strength parameters c, φ, and K of the laterite samples that were corroded by alkaline-solution permeation were reduced with increasing corrosion time and alkaline-solution concentration. The alkaline-solution corrosion had a minor effect on the strength parameters n and Rf. The

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50

Guo, An, Xuemao Guan, Yifan Li, and Songhui Liu. "The Effect of Mg2+on the Solidification of Chloride Ions in Portland Cement Paste." Academic Journal of Science and Technology 5, no. 3 (2023): 231–36. http://dx.doi.org/10.54097/ajst.v5i3.8020.

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In order to investigate the mechanism of the effect of Mg2+ on the solidification of chloride ions in hardened Portland cement slurry, a NaCl-MgCl2 composite solution was used to soak and corrode the hardened Portland cement slurry. Under the condition of fixed total chloride ion concentration of 0.6mol/L, the effects of Mg2+ concentration (0.1mol/L, 0.2mol/L, 0.3mol/L) and soaking time in environmental solutions on Friedel salt production, leaching Ca2+ ion concentration, and leaching of hardened Portland cement were studied The influence law of pH value and other properties in erosive enviro

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