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1.
An extension of the calculus of indications (of G. Spencer Brown) is presented to encompass all occurrences of self-referential situations. This is done through the introduction of a third state in the form of indication, a state seen to arise autonomously by self-indication. The new extended calculus is fully developed, and some of its consequences for systems, logic and epistemology are discussed 相似文献
2.
P. RAYAS-DUARTE C. FRANCISCO M.E. PAYTON D.D. BELLMER B.F. CARVER W.N. HUANG 《Journal of food quality》2009,32(5):627-643
Alkaline noodle characteristics and flour gel properties made with one white and one red hard winter wheat cultivar were studied. The wheat was grown in four Oklahoma agricultural districts, with two to seven locations on each district. Both cultivars had similar flour protein content and overall raw dough sheet color stability ( ΔL * and Δb *) in three out of four agricultural districts. Cimarron and Oro Blanco showed differences in Δa *, Δb * and adhesiveness in the North Central agricultural district. Resilience values of cooked noodles from Oro Blanco were small, but significantly higher in the Central district. Higher flour peak viscosity was observed for Oro Blanco, plus a trend to lower polyphenol oxidase activity and higher elastic modulus than Cimarron.
Hard red winter wheat from the U.S.A. is used in the manufacturing of alkaline noodles in Asia. Color and texture characteristics are among the most important attributes that determine the quality of this type of noodles. Two types of winter wheat cultivars, red and white, were compared and their key properties (including gel properties) of importance in the international trade and noodle manufacturing are reported. 相似文献
PRACTICAL APPLICATIONS
Hard red winter wheat from the U.S.A. is used in the manufacturing of alkaline noodles in Asia. Color and texture characteristics are among the most important attributes that determine the quality of this type of noodles. Two types of winter wheat cultivars, red and white, were compared and their key properties (including gel properties) of importance in the international trade and noodle manufacturing are reported. 相似文献
3.
This note points out that in the context of goal programming the linearization of nonlinear goals by logarithmic transformations, as it is usually done in the field of mechanical engineering applications, is not in general a valid method and can lead to wrong results. 相似文献
4.
Solubility and liquid-liquid phase equilibrium data have been determinated for the ternary system water-Phosphoric Acid-Dibutyl Ether at 25° Data for the binodal curve have been obtained by analyzing the phosphoric acid percentage in both aqueous and organic phases. The plait point composition has been calculated by the Hand, Coolidge and Sherwood methods. The phosphoric acid extraction capacity of dibutyl ether has been compared to that of several solvents previously studied in the Alicante Chemical Engineering Division, showing that dibutyl ether has a phosphoric acid extraction capacity similar to propyl-ether and lower than isoamyl alcohol. 相似文献
5.
ABSTRACT In the present paper, information about the purifying of wet process phosphoric acid (WPA) by Isoamyl Alcohol (iA) is reported. Distribution coefficients of impurities such’ as Fe, Al, Mg, SO= 4and F, as well as the distribution of Phosphoric Acid (PA) and Isoamyl alcohol were obtained. Furthermore the variation of the relative distribution coefficients and selectivities of the different impurities was studied as a function of the PA weight percent (wt%) in the organic phase. Removal of the impurities Fe, Al, Mg and SO= 4is favoured when decreasing PA wt% in the organic phase. Selectivity of F shows different behaviour, passing through a maximum when plotted against PA wt% in the organic phase 相似文献
6.
JING CHEN FRANZ EHRENHAUSER THILANGA P. LIYANA-ARACHCHI FRANCISCO R. HUNG MARY J. WORNAT KALLIAT T. VALSARAJ 《Polycyclic Aromatic Compounds》2013,33(4):201-226
The adsorption of gas-phase phenanthrene on atmospheric water and ice films was investigated in a flow-tube reactor with a view to understanding the processing of semi-volatile organic compounds by fog and snow. Air-water (ice) interface partition constants were obtained by measuring the mass uptake of phenanthrene vapor on thin water and ice films with varying thickness. Adsorption enthalpies and entropies were obtained from the temperature dependence of the interfacial partition constants. The surface adsorption is the predominant mechanism for the uptake of phenanthrene in water and ice films with small film thickness or at low temperature. The adsorption of phenanthrene to ice resembles that to sub-cooled water and there's no significant difference between the adsorption of phenanthrene to water and that to quasi liquid layer (QLL) if we take into account the uncertainties on the thermodynamic quantities measured. Molecular dynamics simulations of phenanthrene at air/water and air/ice interfaces support these experimental observations. The interfacial air-water and air-ice partition constants of phenanthrene increased greatly in the presence of surface-active substances, indicating that surface active materials effectively enhanced the uptake of organic compounds by atmospheric water and ice films. 相似文献
8.
Solubility and liquid-liquid phase equilibrium data have been determined for the ternary systems Water-Phosphoric Acid-Di-n-propyl Ether as supplied by Merck (with about 6.4% of the isomer propyl-isopropyl ether), and Water-Phosphoric Acid-Di-n-propyl Ether (rectified up to less than 1% of propyl-isopropyl ether), at 25 and 40°C The temperatures at which three liquid phases at equilibrium appeared were 28.0-28.2°C and 49.0-50.0°C, respectively. The presence of the isomer propyl-isopropyl ether causes these systems to split into three liquid phases at equilibrium 相似文献
9.
In this paper a simple explicit expression is provided for the parameter a in LBR two-pairs used in the synthesis of all-pass digital transfer functions. The result can be of interest in automated procedures for digital filter design. Further, canonical realizations for this type of two-pairs are given. 相似文献
10.
Peaches (Prunus persica L. Batsch cv. ‘Paraguayo’) at firm-breaker stage of maturity were stored at 0.5 C for 3 weeks. Intermittent warming (IW) for 1 day at 20C every 6 days of cold storage at 0.5C, modified atmosphere packaging (MAP) generated by 42 μm oriented polypropylene bags, and a combination of MAP and IW were applied. Changes in skin and flesh color (measured by CIELAB parameters and Chroma and Hue angle color indices) during normal postharvest ripening at 20C, during cold storage and after 3 days of post-storage ripening were studied. For commercial purposes, IW led to the same color level being reached as was found in normal postharvest ripened fruits. In contrast, the high carbon dioxide and low oxygen generated by MAP alone or combined with IW delayed color development even during post-storage ripening. Ground color measured by hue angle was the best index for monitoring color evolution during ripening and storage. 相似文献