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Journal articles on the topic 'Saturation Index (SI)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Lestari, Devita Satya. "Tingkat Korosivitas Air Terhadap Infrastruktur Sumber Daya Air Berbahan Semen atau Mortar dengan fc’ ≤ 30 MPa pada 9 Waduk di Indonesia." Jurnal Teknik Kimia Indonesia 19, no. 1 (2021): 20. http://dx.doi.org/10.5614/jtki.2020.19.1.4.

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Abstrak. Korosi atau kerusakan yang terjadi di infrastruktur sumber daya air terutama yang berbahan semen atau mortar dengan fc’ atau dengan nilai kuat tekan ≤ 30 Mpa, dapat menimbulkan banyak kerugian. Kerugian yang ditimbulkan antara lain kerugian secara materiil karena korosi menggerogoti semua aset infrastruktur dan tentunya kerugian dalam hal keamanan karena dapat mengancam keselamatan manusia. Korosi merupakan permasalahan yang sangat penting dan tidak akan ada habisnya, karena peristiwa korosi terjadi secara terus-menerus dan berkelanjutan. Peristiwa korosi tidak dapat terjadi dengan se

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2

Fan, Chunfang, Amy T. Kan, Gongmin Fu, Mason B. Tomson, and Dong Shen. "Quantitative Evaluation of Calcium Sulfate Precipitation Kinetics in the Presence and Absence of Scale Inhibitors." SPE Journal 15, no. 04 (2010): 977–88. http://dx.doi.org/10.2118/121563-pa.

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Summary In this study, the nucleation kinetics of calcium sulfate scale formation in the presence and absence of scale inhibitors has been studied. The nucleation kinetics of calcium sulfates in 0–3.2 M NaCl solution was measured from 0 to 200°C at various supersaturation conditions [saturation index (SI) = 0–1.3]. The phase behavior of these various calcium sulfate phases was monitored by X-ray diffraction (XRD). The inhibition study was performed by evaluating the inhibition efficiency of calcium sulfate precipitation at the same supersaturation and temperature ranges as those of the nucleat

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3

Rubén Ferreras Vega. "Estratificación de la gravedad del síndrome de distrés respiratorio agudo en pediatría." Revista Electrónica AnestesiaR 11, no. 3 (2019): 3. http://dx.doi.org/10.30445/rear.v11i3.739.

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El síndrome de distrés respiratorio agudo pediátrico (SDRAP) es una entidad propia y diferenciada del adulto. En el año 2.015, se llegó a un consenso en la conferencia Pediatric Acute Lung Injury Consensus Conference (PALICC); dónde se realizan distintas recomenciones según el acuerdo llegado entre sus integrantes. Así, para la estratificación de la gravedad del SDRAP, en pacientes en ventilación mecánica invasiva (VMI), se utiliza el índice de oxigenación (IO). En su defecto, si no es posible obtener la PaO2, utilizaremos el índice de saturación. ABSTRACT Risk Stratification in pediatric acut

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Ducharne, A. "Reducing scale dependence in TOPMODEL using a dimensionless topographic index." Hydrology and Earth System Sciences 13, no. 12 (2009): 2399–412. http://dx.doi.org/10.5194/hess-13-2399-2009.

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Abstract. This paper stems from the fact that the topographic index used in TOPMODEL is not dimensionless. In each pixel i in a catchment, it is defined as xi=ln(ai/Si), where ai is the specific contributing area per unit contour length and Si is the topographic slope. In the SI unit system, ai/Si is in meters, and the unit of xi is problematic. We propose a simple solution in the widespread cases where the topographic index is computed from a regular raster digital elevation model (DEM). The pixel length C being constant, we can define a dimensionless topographic index yi=xi-lnC. Reformulatin

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5

Promkotra, Sarunya, and Tawiwan Kangsadan. "Geochemical Speciation Associated to Brine and Groundwater." Applied Mechanics and Materials 423-426 (September 2013): 1422–26. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1422.

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Chemical speciation of brine and groundwater is examined to assess the distribution of chemical stability and behaviors of their solutions. Brine and groundwater are randomly collected from Ban Muang and Wanon Niwat District, Sakon Nakhon province. Hydrochemical parameters and also chemical compositions of their major ions are examined to evaluate the hydrochemical facies. Brine is generally indicated the Na-Cl type. For major cations, groundwater expresses mainly the sodium and calcium ions. However, brine presents dominantly sodium and potassium ions. Major anions of groundwater display prin

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Ducharne, A. "Explicitation of an important scale dependence in TOPMODEL using a dimensionless topographic index." Hydrology and Earth System Sciences Discussions 6, no. 2 (2009): 1621–49. http://dx.doi.org/10.5194/hessd-6-1621-2009.

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Abstract. This paper stems from the fact that the topographic index used in TOPMODEL is not dimensionless. In each pixel i in a catchment, it is defined as xi=ln (ai /Si), where ai is the specific contributing area per unit contour length and Si is the topographic slope. In the SI unit system, ai /Si is in meters, and the unit of xi is problematic. Even if all the equations in TOPMODEL are homogeneous, it is confusing to use the logarithm of a non-dimensionless quantity as an index, and we propose a simple solution to this issue in the nowadays widespread cases where the topographic index is c

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7

Naskar, S., S. D. Wolter, C. A. Bower, B. R. Stoner, and J. T. Glass. "Effect of film chemistry on refractive index of plasma-enhanced chemical vapor deposited silicon oxynitride films: A correlative study." Journal of Materials Research 23, no. 5 (2008): 1433–42. http://dx.doi.org/10.1557/jmr.2008.0176.

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Thick SiOxNy films were deposited by radiofrequency (rf) plasma chemical vapor deposition using silane (SiH4) and nitrous oxide (N2O) source gases. The influence of deposition conditions of gas flow ratio, rf plasma mixed-frequency ratio (100 kHz, 13.56 MHz), and rf power on the refractive index were examined. It was observed that the refractive index of the SiOxNy films increased with N and Si concentration as measured via x-ray photoelectron spectroscopy. Interestingly, a variation of refractive index with N2O:SiH4 flow ratio for the two drive frequencies was observed, suggesting that oxynit

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8

Moncheva, S., V. Dontcheva, G. Shtereva, L. Kamburska, A. Malej, and S. Gorinstein. "Application of eutrophication indices for assessment of the Bulgarian Black Sea coastal ecosystem ecological quality." Water Science and Technology 46, no. 8 (2002): 19–28. http://dx.doi.org/10.2166/wst.2002.0136.

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The present paper is an attempt to test the applicability of the trophic state index (TRIX) for scaling the eutrophication along the Bulgarian Black Sea coastal zone in concert with a number of chemical and biological descriptors aimed at selection of relevant indicators of marine coastal area ecological quality. The following environmental parameters have been considered: to, salinity, nutrients - inorganic P, N and dissolved Si, dissolved oxygen and oxygen saturation, phytoplankton - taxonomic structure, abundance and biomass, chlorophyll a, zooplankton - taxonomic structure, abundance and b

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9

Skoczko, Iwona, and Ewa Szatyłowicz. "Experiments on Water Stabilization." Proceedings 16, no. 1 (2019): 3. http://dx.doi.org/10.3390/proceedings2019016003.

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The aim of the study was assessment of groundwater stabilization. Corrosive water effects on metals include complex electrochemical and biochemical processes. None of the water components remain indifferent to the metal and can accelerate or delay its corrosion. On the basis of the conducted tests of water samples, the aggressiveness and corrosivity indicators were calculated. Conducted research included analyses of raw and treated water. Raw water was taken as groundwater. Then it was treated in individual and complex processes such as aeration, filtration and ion exchange. Water aggressivene

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10

Bijak, Szymon. "Selected properties of organic soils under boreal mire spruce forest in the Romincka Forest, NE Poland." Soil Science Annual 68, no. 4 (2017): 182–88. http://dx.doi.org/10.1515/ssa-2017-0023.

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Abstract The paper presents selected properties of the organic soils developed in boreal mire spruce forests (Sphagno girensohnii-Piceetum) in the Romincka Forest (NE Poland). Additionally, the relationship between soil fertility and forest stand productivity was investigated. Data from 12 soil profiles, differing in terms of peatland ecological type (raised bog, transitional bog and fen) was used. The significance of the differences in soil properties among peatland types was assessed with the Kruskal-Wallis test. Soil fertility was described using soil trophic index (SIGo), whereas stand pro

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11

Mujiyo, M., Yosua Yoga Setyawan, Aktavia Herawati, and Hery Widijanto. "The effect of land use on soil quality in Giriwoyo Sub-district, Wonogiri Regency." Journal of Degraded and Mining Lands Management 8, no. 2 (2020): 2559–68. http://dx.doi.org/10.15243/jdmlm.2021.082.2559.

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Determination of soil quality in Giriwoyo Sub-district, Wonogiri Regency, will generate a Soil Quality Index which can be used as a reference for soil cultivation for optimal productivity. This research was a descriptive exploratory with a survey approach. The survey area consisted of 12 land mapping units (LMU) with 3 replications for each LMU. Determination of LMU based on soil type, land use, slope and rainfall. The parameters used were BD (bulk density), porosity, organic C, pH, CEC (cation exchange capacity), BS (base saturation), available P, available K, total N, and MBC (microbial biom

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12

Blank, Alexandra, Gabriel Guendelman, and Yoav Linzon. "Vapor Sensing with Polymer Coated Straight Optical Fiber Microtapers Based on Index Sensitive Interference Spectroscopy of Surface Stress Birefringence." Sensors 20, no. 9 (2020): 2675. http://dx.doi.org/10.3390/s20092675.

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Optical microfiber tapers provide an advantageous platform for sensing in aqueous and gas environments. We study experimentally the photonic transmission in optical fiber tapers coated with polymethyl methacrylate (PMMA), a polymeric material widely used in optical applications. We demonstrate a durable and simple humidity sensing approach incorporating tapered microfibers attached to silicon (Si) substrate coated with active polymer layer. A model is described for the load stress effect on the birefringence giving rise to interferences in the transmission spectra, strongly dependent on the co

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13

Estévez, J. González. "Short-range order of Co-Si-B amorphous alloys from the variation of index n of proportionality between field-induced anisotropy and saturation magnetization." Materials Letters 12, no. 3 (1991): 168–70. http://dx.doi.org/10.1016/0167-577x(91)90167-5.

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14

Mandal, Umesh K. "SPECTRAL COLOR INDICES BASED GEOSPATIAL MODELING OF SOIL ORGANIC MATTER IN CHITWAN DISTRICT, NEPAL." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B2 (June 7, 2016): 43–48. http://dx.doi.org/10.5194/isprsarchives-xli-b2-43-2016.

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Space Technology provides a resourceful-cost effective means to assess soil nutrients essential for soil management plan. Soil organic matter (SOM) is one of valuable controlling productivity of crops by providing nutrient in farming systems. Geospatial modeling of soil organic matter is essential if there is unavailability of soil test laboratories and its strong spatial correlation. In the present analysis, soil organic matter is modeled from satellite image derived spectral color indices. Brightness Index (BI), Coloration Index (CI), Hue Index (HI), Redness Index (RI) and Saturation Index (

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Mandal, Umesh K. "SPECTRAL COLOR INDICES BASED GEOSPATIAL MODELING OF SOIL ORGANIC MATTER IN CHITWAN DISTRICT, NEPAL." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B2 (June 7, 2016): 43–48. http://dx.doi.org/10.5194/isprs-archives-xli-b2-43-2016.

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Space Technology provides a resourceful-cost effective means to assess soil nutrients essential for soil management plan. Soil organic matter (SOM) is one of valuable controlling productivity of crops by providing nutrient in farming systems. Geospatial modeling of soil organic matter is essential if there is unavailability of soil test laboratories and its strong spatial correlation. In the present analysis, soil organic matter is modeled from satellite image derived spectral color indices. Brightness Index (BI), Coloration Index (CI), Hue Index (HI), Redness Index (RI) and Saturation Index (

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16

Ghanem Nadra, Kourtel, Kribaa Mohammed, and El Hadef El Okki Mohammed. "Interaction between Soil Physicochemical Parameters and Earthworm Communities in Irrigated Areas with Natural Water and Wastewaters." Applied and Environmental Soil Science 2017 (2017): 1–16. http://dx.doi.org/10.1155/2017/5808945.

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Our objective is to study interaction between physical and chemical properties of soils and their earthworm community characteristics in different areas irrigated by wastewaters and well waters. The fields have different topography and agricultural practices conditions and are located in two regions of Batna department (Eastern Algeria). Both regions are characterized by a semiarid climate with cold winters and Calcisol soils. Nine fields were subject of this study. Three of these fields are located in Ouled Si Slimane region whose irrigation is effectuated by natural waters of Kochbi effluent

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17

Sanchez, Otto A., Elizabeth A. Copenhaver, Marti A. Chance, et al. "Postmaximal contraction blood volume responses are blunted in obese and type 2 diabetic subjects in a muscle-specific manner." American Journal of Physiology-Heart and Circulatory Physiology 301, no. 2 (2011): H418—H427. http://dx.doi.org/10.1152/ajpheart.00060.2011.

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The purpose of this study was to determine whether there are differences in postisometric contraction blood volume and oxygenation responses among groups of type 2 diabetes mellitus (T2DM), obese, and lean individuals detectable using MRI. Eight T2DM patients were individually matched by age, sex, and race to non-T2DM individuals with similar body mass index (obese) and lean subjects. Functional MRI was performed using a dual-gradient-recalled echo, echo-planar imaging sequence with a repetition time of 1 s and at two echo times (TE = 6 and 46 ms). Data were acquired before, during, and after

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18

de Moel, P. J., A. W. C. van der Helm, M. van Rijn, J. C. van Dijk, and W. G. J. van der Meer. "Assessment of calculation methods for calcium carbonate saturation in drinking water for DIN 38404-10 compliance." Drinking Water Engineering and Science 6, no. 2 (2013): 115–24. http://dx.doi.org/10.5194/dwes-6-115-2013.

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Abstract. The new German standard on the calculation of calcite saturation in drinking water, DIN 38404-10, 2012 (DIN), marks a change in drinking water standardization from using simplified equations applicable for nomographs and simple calculators to using extensive chemical modeling requiring computer programs. The standard outlines the chemical modeling and presents a dataset with 10 water samples for validating used computer programs. The DIN standard, as well as the Standard Methods 2330 (SM) and NEN 6533 (NEN) for calculation of calcium carbonate saturation in drinking water were transl

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de Moel, P. J., A. W. C. van der Helm, M. van Rijn, J. C. van Dijk, and W. G. J. van der Meer. "Assessment of calculation methods for calcium carbonate saturation in drinking water for DIN 38404-10 compliance." Drinking Water Engineering and Science Discussions 6, no. 2 (2013): 167–98. http://dx.doi.org/10.5194/dwesd-6-167-2013.

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Abstract. The new German standard for calcium carbonate saturation in drinking water, DIN 38404-10, 2012 (DIN), marks a change in drinking water standardization from using simplified equations applicable for nomographs and simple calculators to using extensive chemical modeling requiring computer programs. The standard specifies the chemical outlines for the modeling and presents a dataset with 10 water samples for validating used computer programs. The DIN standard, as well as the Standard Methods 2330 (SM) and NEN 6533 (NEN) for calculation of calcium carbonate saturation in drinking water w

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20

Thomson, Alastair J., Gordon B. Drummond, W. Stephen Waring, David J. Webb, and Simon R. J. Maxwell. "Effects of short-term isocapnic hyperoxia and hypoxia on cardiovascular function." Journal of Applied Physiology 101, no. 3 (2006): 809–16. http://dx.doi.org/10.1152/japplphysiol.01185.2005.

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Both hypoxia and hyperoxia have major effects on cardiovascular function. However, both states affect ventilation and many previous studies have not controlled CO2 tension. We investigated whether hemodynamic effects previously attributed to modified O2 tension were still apparent under isocapnic conditions. In eight healthy men, we studied blood pressure (BP), heart rate (HR), cardiac index (CI), systemic vascular resistance index (SVRI) and arterial stiffness (augmentation index, AI) during 1 h of hyperoxia (mean end-tidal O2 79.6 ± 2.0%) or hypoxia (pulse oximeter oxygen saturation 82.6 ± 0

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21

Skoczko and Szatyłowicz. "Treatment Method Assessment of the Impact on the Corrosivity and Aggressiveness for the Boiler Feed Water." Water 11, no. 10 (2019): 1965. http://dx.doi.org/10.3390/w11101965.

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The aim of the study was the assessment of corrosivity and aggressiveness for boiler feed water. The negative effects of water corrosivity and aggressiveness may include silting up of the steel water supply system and the destruction of boiler equipment touched or washed by such water. They may cause the whole industrial production system to fail or be destroyed. That is why it was important to reach a high water purification level, including the calculation of water aggressiveness and corrosivity indicators. The carried out test showed that the simple system used before the modernization of t

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Tymchenko, M. Ye. "STUDY OF ELECTROLYTE DISORDERS AS CRITERION-IMPORTANT MARKERS OF ENDOGENOUS INTOXICATION IN PATIENTS WITH ANASTOMOSIS LEAKEGE AGAINST A BACKGROUND OF RESECTION OF THE SMALL INTESTINE." Kharkiv Surgical School, no. 2 (April 20, 2020): 176–81. http://dx.doi.org/10.37699/2308-7005.2.2020.34.

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Summary. The aim of the study was to study the dependence of ion exchange and saturation with iron transferrin on the background of increasing endotoxicosis, depending on the severity of the clinical course of acute small bowel obstruction and peritonitis. Materials and methods. The research was carried out at the SI «ZIGUS NAMSU» and was based on the analysis of laboratory data of 63 patients with a failure of small intestinal anastomoses who in the future needed one of the options of resections of the segments of the small intestine, which were treated in the clinic from 2016 to 2019.

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23

AL- Ariqi, Wadie S. T., and Abduljalil A. D. S. Ghaleb. "ASSESSMENT OF HYDROCHEMICAL QUALITY OF GROUND WATER UNDER SOME URBAN AREAS WITHIN SANA’A SECRETERIAT." Eclética Química Journal 35, no. 1 (2018): 77. http://dx.doi.org/10.26850/1678-4618eqj.v35.1.2010.p77-84.

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Groundwater from nine wells of three different districts, located at Sana’a secretariat was analyzed for hydrochemical quality assessment. Measurements of water quality parameters including pH, EC, CO32-, HCO3-,Cl-,NO3-,SO4 2-,Ca2+, Mg2+, Fe3+, K+, and Na+ were carried out . Classification of the groundwater samples according to Cl, SO4 2-, CO32- and HCO3-, hardness(H), total dissolved solids (TDS), base-exchange, and meteoric genesis was demonstrated. Suitability of ground water samples for irrigation and industrial uses according to sodium adsorption ration (SAR), ratio of dissolved sodium (

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24

Gao, Zongjun, Jiutan Liu, Jianguo Feng, Min Wang, and Guangwei Wu. "Hydrogeochemical Characteristics and the Suitability of Groundwater in the Alluvial-Diluvial Plain of Southwest Shandong Province, China." Water 11, no. 8 (2019): 1577. http://dx.doi.org/10.3390/w11081577.

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The alluvial-diluvial plain of southwest Shandong Province is an important agricultural economic zone and energy base in Shandong Province. Groundwater plays an extremely significant role in the development of the regional social economy. In this study, 50 sets of water samples, collected from 25 wells during October 2016 and June 2017, were utilized to determine the hydrogeochemistry and the suitability of groundwater in the alluvial-diluvial plain of southwest Shandong Province for different applications, such as drinking and irrigation. Most of the water samples could be classified as hard-

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25

El-Said, Ghada F., Gehan M. El Zokm, Abeer A. El Sayed, Ahmed A. El Ashmawy, and Mohamed A. Shreadah. "Anomalous Fluctuation of Halogens in Relation to the Pollution Status along Lake Mariout, Egypt." Journal of Chemistry 2020 (December 30, 2020): 1–20. http://dx.doi.org/10.1155/2020/8102081.

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This paper aimed to study the anomalous fluctuation of halogens with respect to the pollution status in surface water (w), pore water (p), and sediments (s) of Lake Mariout. It provided a framework for understanding the distribution of dissolved and precipitated halogen salts related to the pollution status of the lake. The study cleared out that bromide was only the most abundant halogen in the three studied partitions. On contrast, sediment’s partition contained the lowest chloride content. Fluoride minerals, especially, fluorapatites and carbonate-fluorapatite (FAP and CFAP), had high Satur

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Zhang, Fangfu, Charles J. Hinrichsen, Amy T. Kan, et al. "Calcium Sulfate Scaling Risk and Inhibition for a Steamflood Project." SPE Journal 22, no. 03 (2016): 881–91. http://dx.doi.org/10.2118/179875-pa.

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Summary Steamflooding is a widely used technique for heavy-oil recovery. Scale control during steamflooding, however, can be challenging because the high temperature of the steamflood can decompose thermally unstable inhibitors and/or lead to the precipitation of metal-inhibitor pseudoscale. In this paper, we present the analysis of the scaling risk and scale inhibition for a pilot steamflood project in a Middle Eastern oil field. The formation of this field is a dolomite formation interbedded with anhydrite (CaSO4) streaks. Anhydrite has been observed to be the predominant scale form. Anhydri

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Li, Jinlong, Wei Wang, Dahao Wang, Jiaqi Li, and Jie Dong. "Hydrochemical and Stable Isotope Characteristics of Lake Water and Groundwater in the Beiluhe Basin, Qinghai–Tibet Plateau." Water 12, no. 8 (2020): 2269. http://dx.doi.org/10.3390/w12082269.

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Thermokarst lakes are a ubiquitous landscape feature that impact the thermal state, hydrological process, ecological environment, and engineering stability of the permafrost. This study established the hydrochemistry and stable isotope (δ18O and δD) variations of lake water and groundwater in a typical basin located in the central Qinghai–Tibet Plateau (QTP) of China. The results showed that most water samples could be classified as slightly alkaline, with high levels of salinity and hardness, while the dominant water types were HCO3-CO3 and Cl types. Natural hydrochemical processes, such as m

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Desmidt, E., K. Ghyselbrecht, A. Monballiu, W. Verstraete, and B. D. Meesschaert. "Evaluation and thermodynamic calculation of ureolytic magnesium ammonium phosphate precipitation from UASB effluent at pilot scale." Water Science and Technology 65, no. 11 (2012): 1954–62. http://dx.doi.org/10.2166/wst.2012.092.

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The removal of phosphate as magnesium ammonium phosphate (MAP, struvite) has gained a lot of attention. A novel approach using ureolytic MAP crystallization (pH increase by means of bacterial ureases) has been tested on the anaerobic effluent of a potato processing company in a pilot plant and compared with NuReSys® technology (pH increase by means of NaOH). The pilot plant showed a high phosphate removal efficiency of 83 ± 7%, resulting in a final effluent concentration of 13 ± 7 mg · L−1 PO4-P. Calculating the evolution of the saturation index (SI) as a function of the remaining concentratio

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Bitencourt, Almir, Varadan Sevilimedu, Elizabeth A. Morris, Katja Pinker, and Sunitha B. Thakur. "Fat Composition Measured by Proton Spectroscopy: A Breast Cancer Tumor Marker?" Diagnostics 11, no. 3 (2021): 564. http://dx.doi.org/10.3390/diagnostics11030564.

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Altered metabolism including lipids is an emerging hallmark of breast cancer. The purpose of this study was to investigate if breast cancers exhibit different magnetic resonance spectroscopy (MRS)-based lipid composition than normal fibroglandular tissue (FGT). MRS spectra, using the stimulated echo acquisition mode sequence, were collected with a 3T scanner from patients with suspicious lesions and contralateral normal tissue. Fat peaks at 1.3 + 1.6 ppm (L13 + L16), 2.1 + 2.3 ppm (L21 + L23), 2.8 ppm (L28), 4.1 + 4.3 ppm (L41 + L43), and 5.2 + 5.3 ppm (L52 + L53) were quantified using LCModel

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Yan, Chao, Amy T. Kan, Fangfu Zhang, Ya Liu, Ross C. Tomson, and Mason B. Tomson. "Systematic Study of Barite Nucleation and Inhibition With Various Polymeric Scale Inhibitors by Novel Laser Apparatus." SPE Journal 20, no. 03 (2015): 642–51. http://dx.doi.org/10.2118/169787-pa.

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Summary This work reports a reliable and systematic study of barite-nucleation kinetics in the presence of scale inhibitors from 4 to 90°C and at various conditions. In this study, we designed and developed an apparatus to study the nucleation kinetics of barite-scale formation by monitoring the change of photocurrent created by a 5-mW, 635-nm red laser. The photodetector has a wide wavelength range in which sensitivity has a peak at 960 nm. A set of convex and concave lenses was used to control the beam diameter so that it can pass through more particles and increase the sensitivity. Temperat

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Amézaga, Javier, Sara Arranz, Ander Urruticoechea, et al. "Altered Red Blood Cell Membrane Fatty Acid Profile in Cancer Patients." Nutrients 10, no. 12 (2018): 1853. http://dx.doi.org/10.3390/nu10121853.

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The fatty acid (FA) composition of red blood cell (RBC) membrane phospholipids of cancer patients can reflect tumor status, dietary intakes, and cancer type or therapy. However, the characteristic membrane profiles have so far not yet defined as a potential biomarker to monitor disease evolution. The present work provides the first evidence of cancer metabolic signatures affecting cell membranes that are independent of nutritional habits. From the Oncology Outpatient Unit of the Onkologikoa hospital, two groups of cancer patients (n = 54) and healthy controls (n = 37) were recruited, and matur

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Guérin, Julie, Léon-Étienne Parent, and Bing Si. "Spatial and seasonal variability of phosphorus risk indexes in cultivated organic soils." Canadian Journal of Soil Science 91, no. 2 (2011): 291–302. http://dx.doi.org/10.4141/cjss10089.

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Guérin, J. É., Parent, L.-É. and Si, B. C. 2011. Spatial and seasonal variability of phosphorus risk indexes in cultivated organic soils. Can. J. Soil Sci. 91: 291–302. Many reports have attributed phosphorus (P) leaching from cultivated organic soils and the eutrophication of adjacent surface waters to P fertilization exceeding the P sorption capacity of the soil. The index of phosphorus saturation (IPS) using the Mehlich III method (M-III) has been proposed to define an agri-environmental threshold of P saturation in cultivated organic soils. The spatial and temporal variability of IPSM-III

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Kan, Amy T., Joey (Zhaoyi) Dai, Guannan Deng, et al. "Recent Advances in Scale Prediction: Approach and Limitations." SPE Journal 24, no. 05 (2019): 2209–20. http://dx.doi.org/10.2118/190754-pa.

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Summary Numerous saturation indices and computer algorithms have been developed to determine whether, when, and where scale will form. However, scale prediction can still be challenging because the predictions from different models often differ significantly at extreme conditions. Furthermore, there is a great need to accurately interpret the partitioning of water (H2O), carbon dioxide (CO2), and hydrogen sulfide (H2S) between different phases, as well as the speciations of CO2 and H2S. This paper summarizes current developments in the equation-of-state (EOS) and Pitzer models to accurately mo

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Kan, Amy T., and Mason B. Tomson. "Scale Prediction for Oil and Gas Production." SPE Journal 17, no. 02 (2012): 362–78. http://dx.doi.org/10.2118/132237-pa.

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Summary Scale prevention is important to ensure continuous production from existing reserves that produce brine. Wells could be abandoned prematurely because of poor management of scale and corrosion. The objective of this paper is to present an overview of scale prediction and control and the current research at Rice University to solve these problems. In this paper, the challenges of scale prediction at high temperature, high pressure, and high total dissolved solids (TDS) and an accurate model to predict pH, scale indices, density, and inhibitor needs at these conditions are discussed and r

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Bruk, TM, PA Terekhov, FB Litvin, and SV Verlin. "Physiological mechanisms of the low-intensity laser radiation impact on the highly qualified athletes’ special physical performance." IMMUNO-ONCOLOGY, no. 5 (November 1, 2019): 112–19. http://dx.doi.org/10.24075/brsmu.2019.071.

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In the context of strengthening the fight against doping and limiting the use of synthetic pharmaceuticals, the effective remedies to increase physical performance and accelerate the recovery of athletes are being sought. One of such remedies is exposure to low-level laser radiation (LLLR, LLLT). The study was aimed to investigate the physiological response of highly qualified female rowers’ functional systems to the LLLR irradiation course. To monitor the body of athletes, we used laser Doppler flowmetry (LDF), mathematical analysis of heart rate, neuroenergy mapping, as well as pedagogical t

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Savioli, Gabriele, Iride Francesca Ceresa, Sarah Macedonio, et al. "Trauma Coagulopathy and Its Outcomes." Medicina 56, no. 4 (2020): 205. http://dx.doi.org/10.3390/medicina56040205.

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Background and Objectives: Trauma coagulopathy begins at the moment of trauma. This study investigated whether coagulopathy upon arrival in the emergency room (ER) is correlated with increased hemotransfusion requirement, more hemodynamic instability, more severe anatomical damage, a greater need for hospitalization, and hospitalization in the intensive care unit (ICU). We also analyzed whether trauma coagulopathy is correlated with unfavorable indices, such as acidemia, lactate increase, and base excess (BE) increase. Material and Methods: We conducted a prospective, monocentric, observationa

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Ribeiro, Moises Santiago, Fabio Henrique de Souza Faria, Luiz Antonio Lima, Silvanio Rodrigues dos Santos, and Marina Rosa de Jesus. "AVALIAÇÃO DA QUALIDADE E TRATAMENTO DAS ÁGUAS SUBTERRÂNEAS PARA IRRIGAÇÃO EM JAÍBA E JANAÚBA – PRECIPITAÇÃO QUÍMICA E CORROSÃO." IRRIGA 14, no. 3 (2009): 336–47. http://dx.doi.org/10.15809/irriga.2009v14n3p336-347.

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AVALIAÇÃO DA QUALIDADE E TRATAMENTO DAS ÁGUAS SUBTERRÂNEAS PARA IRRIGAÇÃO EM JAÍBA E JANAÚBA – PRECIPITAÇÃO QUÍMICA E CORROSÃO Moisés Santiago Ribeiro1; Fábio Henrique de Souza Faria2; Luiz Antônio Lima1;Silvânio Rodrigues dos Santos2; Marina Rosa de Jesus31Departamento de Engenharia, Universidade Federal de Lavras, Lavras, MG, moisessantiago@hotmail.com2Departamento de Ciências Agrárias, Universidade Estadual de Montes Claros, Janaúba, MG3Graduanda em Geografia, Instituto Superior de Educação de Janaúba, Empresa de Pesquisa Agropecuária de Minas Gerais, Janaúba, MG 1 RESUMO A qualidade inferi

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Djalali, Mahmoud, Tirang R. Neyestani, Jamil Bateni, and Fereydoun Siassi. "The Effect of Repeated Blood Donations on the Iron Status of Iranian Blood Donors Attending the Iranian Blood Transfusion Organization." International Journal for Vitamin and Nutrition Research 76, no. 3 (2006): 132–37. http://dx.doi.org/10.1024/0300-9831.76.3.132.

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Objective: Blood donation leads to substantial iron loss, as about 0.5 mg iron is lost per each milliliter of blood donated. If not compensated for efficiently, the iron loss may eventually lead to anemia, though non-anemic iron deficiency per se may be problematic. The aim of this study was to evaluate the effects of blood donation, and its frequency over a year’s time, on iron status of Iranian male blood donors attended blood transfusion stations of the Iranian Blood Transfusion Organization (IBTO). Design and setting: A cross-sectional, descriptive, and analytic study was conducted. 91 mal

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Chenarbon, Hossein Ahmadi, Saeid Minaei, Ali Reza Bassiri, Morteza Almassi, Akbar Arabhosseini, and Ali Motevali. "Effect of drying on the color of St. John’s wort (Hypericum perforatum L.) leaves." International Journal of Food Engineering 8, no. 4 (2012). http://dx.doi.org/10.1515/1556-3758.2545.

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Abstract The effect of drying on color changes of St. John’s wort (Hypericum perforatum L.) leaves was investigated. The samples were dried at drying air temperatures of 40, 50, 60, and 70°C, air velocities of 0.3, 0.7, and 1 m/s and bed depths of 1, 2, and 3cm with factorial experimental design based on completely randomized design. All treatments were tested in three replications. The total color difference (ΔE) and saturation index or chroma (SI) was evaluated as the important quality parameters. The Duncan’s multiple range tests was used to compare the treatment means. Regarding to SI and

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Zhao, Yue, Zhaoyi Dai, Chong Dai, et al. "A Semiempirical Model for Barium-Strontium-Sulfate Solid Solution Scale Crystallization and Inhibition Kinetics at Oilfield Conditions." SPE Journal, March 1, 2021, 1–14. http://dx.doi.org/10.2118/205367-pa.

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Summary Scale inhibitors have been widely used as one of the most efficient methods for sulfate-scale control. To accurately predict the required minimum inhibitor concentration (MIC), we have previously developed several crystallization and inhibition models for pure sulfate scales, including barite, celestite, and gypsum. However, disregarding the wide existence of barium-strontium-sulfate (Ba-Sr-SO4) solid solution in the oil field, no related models have been developed that would lead to large errors in MIC determination. In this study, the induction time of Ba-Sr-SO4 solid solution was me

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