This paper proposes a variant of the classical HAUSMAN specifi cation test commonly employed to decide whether the estimation of a random-eff ects model is a viable alternative to estimating fi xed eff ects. Whereas the classical test probes the equality of fi xedand random eff ects, the proposed variant focuses on the equality of between-groups and fi xed-eff ects coeffi cients. While both tes...

Electrochemical characteristic parameters such as diffusional permeability, ion transport number, fi xed charge concentration and electrical resistance for a regenerated cellulose/polypropylene-supported membrane (RC/PP sample) in contact with NaCl solutions at different concentrations were determined. The effect of the polypropylene support on mass and charge transport was estimated by compari...

E. Olejnik, A. Janas, B. Grabowska, M. Kawalec, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland Casting technology was applied and research was carried out on two alloys based on the Ni3Al phase with variable carbon content of 0,2 and 1,25 wt. % C, respectively. Resistance to abrasive wear, friction coeffi cient and Vickers microhardness were determined....

L. Blacha, Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, Katowice J. Mizera, Warsaw University of Technology, Faculty of Materials Engineering, Warszawa P. Folęga, Silesian University of Technology, Faculty of Transport, Katowice, Poland In the present paper, the rate of aluminium evaporation from the Ti-6Al-7Nb alloy during smelting with the use of VIM met...

This paper proposes a variant of the classical HAUSMAN specifi cation test commonly employed to decide whether the estimation of a random-eff ects model is a viable alternative to estimating fi xed eff ects. Whereas the classical test probes the equality of fi xedand random eff ects, the proposed variant focuses on the equality of between-groups and fi xed-eff ects coeffi cients. While both tes...

The Article deals with the controlled influence of adhesive force in contact road vehicle’s wheel road. first section shows how is reduced. next step familiarization experimental vehicle Alternative SkidCar, where measurements were carried out, assessment advantages and disadvantages SkidCar drive on sliding surface following test methods. objective article to determine great difference b...

A blind box economy has emerged in 2019, reflecting new consumption psy-chology among the young Z generation. Based on previous studies Customer Perceived Value (CPV), customer satisfaction, and loyalty, this study analyzes 12 characteristics, 5 CPV, loyalty via questionnaires interviews. Better-Worse Coeffi-cient analysis, characteristic, Kano attribute classification of CPV are used to determ...

This study aimed to determine the reliability and validity of items of the Japanese version of the CES-D (Center of Epidemiologic Studies Depression) scale when applied to independent community-dwelling Japanese elderly from the viewpoints of internal consistency and goodness-of-fi t for the model. Subjects were 1791 community-dwelling independent elderly people aged 60 and over. This study use...

cial in subgroups of inten sive care unit (ICU) patients, but may harm other sub groups. Th is harm may be due to hypoglycemic events. In avoiding hypoglycemia, an accurate bedside glucometry method is essential [1]. Bridges and colleagues therefore evaluated the accuracy of a continuous subcutaneous glucose monitoring system (CGMS) in critically ill children, and concluded that the system prov...