The total colorant sensitivity of a color matching recipe: An approach to colorant weighting and tinctorial strength errors

The repeatability of the recipe color can be affected by several different types of inevitable inaccuracies in the coloration process. Two of the major causes of poor target‐color reproducibility are the (random) weighing and (proportional) strength errors. This article describes alternative definitions of colorant strength sensitivity and total colorant sensitivity of a dyeing recipe. The influences of the maximal colorant weighing and strength errors are taken into account in order to bring the magnitudes of the two treated types of sensitivity into a mutually realistic balance between each other. The quantifications of precision and accuracy of a color matching recipe are also developed and combined into a single‐number measure of recipe quality. The listed quantities are expected to be useful in selecting the most reliable one(s) among the different formulations for the same standard color. The methods are presented for calculating numerical estimates of the newly introduced quantities. The precision and accuracy of the coloration process are investigated in laboratory experiments involving repeated dyeings. © 2008 Wiley Periodicals, Inc. Col Res Appl, 33, 300–306, 2008.     

Facets of Dynamic Positive Affect: Differentiating Joy, Interest, and Activation in the Positive and Negative Affect Schedule (PANAS).

This article proposes the differentiation of Joy, Interest, and Activation in the Positive Affect (PA) scale of the Positive and Negative Affect Schedule (PANAS; D. Watson, L. A. Clark, & A. Tellegen, 1988). Study 1 analyzed the dynamic course of PA before, during, and after an exam and established the differentiation of the three facets. Study 2 used a multistate-multitrait analysis to confirm this structure. Studies 3-5 used success-failure experiences, speaking tasks, and feedback of exam results to further examine PA facets in affect-arousing settings. All studies provide convincing evidence for the benefit of differentiating three facets of PA in the PANAS: Joy, Interest, and Activation do have distinct and sometimes even opposite courses that make their separation meaningful and rewarding. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reduction of Work-Family Conflict Through the Use of Selection, Optimization, and Compensation Behaviors.

Prior research has examined both the antecedents to and outcomes of work-family conflict. However, little is known about the existence and efficacy of behavioral strategies that may be used by individuals to reduce the amount of stressors experienced both on the job and at home, which result in work-family conflict. The purpose of this study was to examine the role of selection, optimization, and compensation (SOC) behaviors in relation to both job and family stressors and work-in-family (WIF) conflict and family-in-work (FIW) conflict. Results suggest that the use of general SOC behaviors in both the work and family domains are related to lower amounts of job and family stressors and subsequently lower amounts of WIF conflict and FIW conflict. In general, these results held true even when additional variables (e.g., hours worked, gender, job involvement, family involvement, social support, and supervisor support) were controlled. Implications of these results are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sustainable urban growth in peripheral areas

The monograph addresses the factors affecting the degree of sustainability exhibited by population growth in peripheral urban settlements. Development differentials between core and peripheral regions in countries of different size and various level of economic development are discussed and specifically, the following issues are considered: 1, core versus periphery: inequalities and development needs; 2, development peculiarities of peripheral urban settlements; 3, criteria for sustainable urban growth; 4, factors influencing urban growth in peripheral areas; and 5, planning strategies for regional development. Two major theoretical considerations are posited for discussion. First, that ‘sustainable population growth' of an urban settlement is defined according to the settlement's ability to attract newcomers and retain current residents (migration attractiveness). Second, that the preconditions which are essential for sustainable population growth in peripheral areas are not identical to those in the core. A set of analytical models designed to explain development peculiarities of peripheral settlements are suggested and several planning strategies are also proposed, aimed at enhancing the socio-economic sustainability of existing settlements in peripheral areas. These include: 1, the formation of compact development clusters; 2, the concentration of state and local financial resources on selected development settlements; 3, the adoption of a system of progressive economic incentives to promote private investment in peripheral areas; and 4, stricter regulation of land use in core regions.     

Two approaches for irradiating cells individually: a charged-particle microbeam and a soft X-ray microprobe

We are developing two independent, but complementary microbeams for irradiating cells individually in vitro. Firstly, a charged-particle microbeam that uses a fine-bore glass capillary, combined with a transmission detector to precisely irradiate cells with exact numbers of energetic charge-particles and secondly, a soft X-ray microprobe that produces a very fine beam of carbon-K (278 eV) ultrasoft X-rays, focused to a spot size < 100 nm. X-ray focusing is achieved using zone-plate diffraction lenses developed initially for X-ray microscopy applications.     

Output‐feedback co‐ordinated decentralized adaptive tracking: The case of MIMO subsystems with delayed interconnections

Exact decentralized output‐feedback Lyapunov‐based designs of direct model reference adaptive control (MRAC) for linear interconnected delay systems with MIMO subsystems are introduced. The design process uses a co‐ordinated decentralized structure of adaptive control with reference model co‐ordination which requires an exchange of signals between the different reference models. It is shown that in the framework of the reference model co‐ordination zero residual tracking error is possible, exactly as in the case with SISO subsystems. We develop decentralized MRAC on the base of a priori information about only the local subsystems gain frequency matrices without additional a priori knowledge about the full system gain frequency matrix. To achieve a better adaptation performance we propose proportional, integral time‐delayed adaptation laws. The appropriate Lyapunov–Krasovskii type functional is suggested to design the update mechanism for the controller parameters, and in order to prove stability. Two different adaptive DMRAC schemes are proposed, being the first asymptotic exact zero tracking results for linear interconnected delay systems with MIMO subsystems. Copyright © 2005 John Wiley & Sons, Ltd.     

Synthesis of carbon nanostructures by arc evaporation of graphite rods with Co-Ni and YNi2 catalysts

Yields of single-walled carbon nanotubes (SWNTs) produced from electric arc evaporation of graphite electrodes with 3Co/Ni and YNi₂ catalysts differ substantially. For instance, with YNi₂ catalyst, the SWNT yield is ∼30-50 wt.% in ‘collar’ soot and ∼10-15 wt.% in ‘wall’ soot, while with 3Co/Ni catalyst, the yields are ∼15-20 wt.% and 2-3 wt.%, respectively. According to Raman spectroscopy data, the average dimension of SWNTs is ∼1.2 nm for 3Co/Ni and ∼1.4 nm for YNi₂ catalyst. Optimum conditions for synthesis also differ for catalysts compared; namely, for 3Co/Ni: current intensity is 93 A, helium pressure is 650 Torr, the electrode gap is 2.5-3 mm; for YNi₂: current intensity is 98 A, helium pressure is 500 Torr, the electrode gap is 1-2 mm.     

Comparative studies of p-type InP layers formed by Zn<Subscript>3</Subscript>As<Subscript>2</Subscript> and Zn<Subscript>3</Subscript>P<Subscript>2</Subscript> diffusion

The Zn₃As₂ and Zn₃P₂ were used as Zn-diffusion sources to form a p-region in undoped-InP wafers. The p-type InP formed by Zn diffusion from a Zn₃P₂ source has higher transmittance over the testing-spectrum range 1,000–1,700 nm versus Zn diffusion from a Zn₃As₂ source. In the case of a p-type region formed from a Zn₃As₂ source, x-ray photoelectron spectroscopy (XPS) showed As atoms were reduced from the oxide state and formed an InAs composition, which introduces more absorption loss.     

Effect of Residual Stresses on Electrophysical Properties of High-Ohmic Thick Films Based on SnO 2 ― Sb

We have studied the effect of a mismatch between the thermal coefficients of linear expansion for the current-conducting phase and the glass on the electrical properties of composite thick films based on Sn_0.93Sb_0.07O₂. The physical explanation of the results obtained is connected with the appearance of residual stresses in the film on cooling during heat treatment.     

The study of terrestrial vertebrates of the Ob River basin

The paper describes the 300-year history of studying the terrestrial vertebrates in the Ob basin and the current state of researches into amphibians, reptiles, birds and mammals. We examine the role of the research centres in Western Siberia in studying the terrestrial vertebrates in the Ob basin, from the steppe in the south to the tundra in the north and the uplands of the Altai, Kuznetsky Alatau and Salair. We describe the degree of exploration of the terrestrial vertebrates in 11 Russian regions located in the area. The paper includes discussions of rare species, population, spatial distribution and man’s impact on the animals. We also indicate areas where there is insufficient study.