Wichita State University

About: Wichita State University is a education organization based out in Wichita, Kansas, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 4988 authors who have published 9563 publications receiving 253824 citations. The organization is also known as: WSU & Fairmount College.

The NEXTGEN Model Atmosphere Grid. II. Spherically Symmetric Model Atmospheres for Giant Stars with Effective Temperatures between 3000 and 6800 K

Abstract: We present the extension of our NextGen model atmosphere grid to the regime of giant stars. The input physics of the models presented here is nearly identical to that of the NextGen dwarf atmosphere models; however, spherical geometry is used self-consistently in the model calculations (including the radiative transfer). We revisit the discussion of the effects of spherical geometry on the structure of the atmospheres and the emitted spectra and discuss the results of non-LTE calculations for a few selected models.

Continuous contact force models for impact analysis in multibody systems

Abstract: One method for predicting the impact response of a multibody system is based on the assumption that the impacting bodies undergo local deformations and the contact forces are continuous. In a continuous analysis, the integration of the system equations of motion is carried out during the period of contact; therefore, a model for evaluating the contact forces is required. In this paper, two such contact force models are presented, both Hertzian in nature and based upon the direct-central impact of two solid particles.

Small-Firm Performance: Modeling the Role of Product and Process Improvements

Abstract: Small- and medium-sized firm performance is a complex,multifaceted construct. In order to better understand this construct, aconceptual model is proposed with two distinct, related outcome dimensions:growth and profitability. Four antecedent conditions—environmental hostility,firm size, innovation capability, and internationalization—that affect firmperformance as well as the likelihood that a firm will pursue either productimprovement or process improvement as their primary strategic orientation arereviewed. Data were obtained via a survey on 182 small- and medium-sized manufacturingfirms in the United States. Results reveal that internationalization andinnovator position positively affect product and process improvements.Environmental hostility, internationalization, and product improvementpositively affect firm growth as a performance dimension. It was found that aproduct improvement orientation positively affects firm growth, and henceprofitability, while a process improvement orientation has no relationship togrowth or profitability. (LKB)