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1501
Managing Bahiagrass in Hybrid Bermudagrass Pastures
Published 2005-10-01“…Bahiagrass typically does not invade a healthy bermudagrass sward, but as the stand begins to thin and nutrients such as nitrogen become limiting, bahiagrass invasion is common. …”
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1502
Evolution of Mesopores in Monolithic Macroporous Ethylene-Bridged Polysilsesquioxane Gels Incorporated with Nonionic Surfactant
Published 2012-01-01“…The difference of mesopore structures depending on the method of the solvent removal has been observed by the X-ray diffraction and the nitrogen adsorption-desorption measurements. During the hydrothermal treatment under the basic condition, the reorganization of the polysilsesquioxane gel network occurred differently depending on the alkoxy group contained in the precursors. …”
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1503
Modeling Cu(II) Binding to Peptides Using the Extensible Systematic Force Field
Published 2010-01-01“…All likely copper geometries were modeled, but the results showed only a small dependence on the geometrical model in that all resulted in a distorted square pyramidal geometry about the copper, some of the imidazole rings were poorly oriented for ligation to the Cu(II), and the copper-nitrogen bond distances were too long. The results suggest that ESFF should be used with caution for Cu(II) complexes where the copper-ligand bonds have significant covalency and when the ligands are not geometrically constrained to be planar.…”
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1504
Changes in the Essential Oil Composition in the Needles of Scots Pine (Pinus sylvestris L.) Under Anthropogenic Stress
Published 2007-01-01“…The aim of this study was to evaluate composition of the essential oils in the needles of Scots pine (Pinus sylvestris L.) growing in the areas affected by pollutant emissions of main factories in Lithuania: a nitrogen fertilizer factory (NFF), a cement factory (CF), and an oil refinery (OR). …”
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1505
Activated Carbons from Crosslinked Novolac Resin
Published 2005-06-01“…The process consisted of curing the resin with HMTA at 200°C, carbonization in nitrogen at 600°C and gasifying the char in carbon dioxide or in steam at 900°C. …”
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1506
Use of controlled release organic mineral fertilizer in soybean crop
Published 2020-10-01“…Experimental results showed higher soybean productivity and leaf nitrogen content in the organic mineral treatments than mineral ones in all dosages tested, with statistical relevance for 80% and 100% NPK dosages. …”
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1507
PRE-STRAIN EFFECT EVALUATION OF AUSTENITIC STAINLESS STEEL
Published 2019-01-01“…For example of pre-strain effect on austenitic stainless steel S30408,based on the effective tensile test data at liquid nitrogen temperature,and the bilateral confidence was 99%,the effect of 9%-prestrain on the steel was evaluated: 1) 9%-pre-strain significantly increases the yield strength of steel S30408,and the standard deviation is basically unchanged; 2) for steel S30408 tensile strength,9%-pre-strain is no effect on the mean and the standard deviation.…”
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1508
Fertilizers and Mixed Crop Cultivation of Chromium Tolerant and Sensitive Plants under Chromium Toxicity
Published 2015-01-01“…We conclude that metal accumulation of seeds of green gram was higher than corn and the application of single fertilizer either farm yard manure (FYM) or nitrogen, phosphorous, and potassium (NPK) enhances the growth and yield of both the tolerant and sensitive plants in the mixed crop cultivations.…”
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1509
Modeling of Nitrate Leaching during the Fall–Winter Season in Artificially Drained Soils
Published 2002-01-01“…The nitrogen processes that occur within the soil play a major role in determining the nitrate leaching to shallow groundwater. …”
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1510
Surface Properties and Catalytic Activity of Ni/AlO–AlPO Catalysts
Published 1999-05-01“…The textural parameters of all the prepared samples were determined from nitrogen adsorption studies conducted at −196°C, while thermal analysis methods (DTA, TGA and DrTGA) and X-ray diffraction techniques were used to elucidate their structures. …”
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1511
Core Microstructure and Strain State Analysis in MgB2 Wires with Different Metal Sheaths
Published 2015-01-01“…We reduced commercial MgB2 powder by attrition milling in nitrogen atmosphere using tungsten carbide balls and obtained powders with grain sizes lower than 150 nm and different strain states through this process. …”
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1512
Synthesis and Adsorptive Constitutive Properties of MMS/MFI Materials Prepared on the Basis of Al-Aerosil
Published 2007-02-01“…The prepared materials were characterized by IR spectroscopy (FT-IR), X-ray diffraction (XRD) and nitrogen adsorption methods.…”
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1513
Comparison of Ignition Control Techniques in HCCI Engines from Theoretical and Practical Perspectives
Published 2025-01-01“…This temperature reduction is crucial as it minimizes the formation of nitrogen oxides (NOx), pollutants that typically form at high temperatures, thus making HCCI engines more environmentally friendly. …”
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1514
Studies of the Kinetic Characteristics of HSA Adsorption by Different Types of Activated Carbon Fibres
Published 2000-06-01“…The various parameters for the porous structure were calculated by different methods on the basis of the low-temperature adsorption isotherms of nitrogen measured at 77 ± 1 K. It was shown that an increase in the degree of ACF activation led to the development of a porous structure which exhibited increasing values of the micropore and mesopore volumes. …”
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1515
MCM-41 Porosity: Are Surface Corrugations Micropores?
Published 2011-06-01“…The physisorption of nitrogen at 77.3 K and 87.5 K and of carbon dioxide at 273 K was carried out on both MCM-41 and a precipitated silica (PSIL). …”
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1516
Production of Cellulose Nitrate Polymer from Sawdust
Published 2010-01-01“…Variation in the composition of a particular nitrating acid mixture, relative acid strength of the nitrating mixture, nitrating time and proportion of nitrating acid to cellulose material all influenced the yield and solubility of cellulose nitrate whose nitrogen contents ranged from 11.06 to 13.12%. The products were chloroform, acetone and ester soluble, hence, useful for industrial applications.…”
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1517
Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite
Published 2021-01-01“…The resulting material was characterized by using energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and nitrogen adsorption-desorption isotherms. The so-treated diatomite has a high specific surface area (77.8 m2/g) and a high concentration of isolated silanol groups on the surface, and therefore, its adsorption capacity increases drastically in both the single and binary adsorption systems for rhodamine B and methylene blue. …”
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1518
Air Oxidation of Carbon Spheres. I. Master Curves of Pore Parameters
Published 2005-12-01“…Pore development in the carbon spheres by such oxidation was characterized through analyses of nitrogen adsorption isotherms by different methods. …”
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1519
Kinetics of Free Radical Polymerization of N-Substituted Amides and Their Structural Implications
Published 2016-01-01“…A peculiar aspect regards the steric hindrance at the nitrogen atom.…”
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1520
Why the Real Atmosphere Has More Energy than Climate Models: Implications for Ground-Based Telescopes
Published 2025-01-01“…Line shapes of radiatively active species, the rotational energy of molecular nitrogen and oxygen, and the translational energy of all molecules are involved, resulting in less energy in models than exists in the real atmosphere. …”
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