This paper demonstrates the feasibility of replacing the metal coil spring with the composite coil spring. Three different types of springs were made using glass fiber, carbon fiber and combination of glass fiber and carbon fiber. The objective of the study is to reduce the weight of the spring. According to the experimental results the spring rate of the carbon fiber spring is 34% more than th...

We investigate a generalisation of the three dimensional spring-pendulum system. The problem depends on two real parameters (k, a), where k is the Young modulus of the spring and a describes the nonlinearity of elastic forces. We show that this system is not integrable when k 6= −a. We carefully investigated the case k = −a when the necessary condition for integrability given by the Morales-Ram...

artists; signatures and monograms, an international directory. Castagno, John. Scarecrow Pr., ©2007 567 p. $225.00 Castagno, a multimedia artist and sculptor and author of other books in the Artists’ Signatures and Monograms series, presents a reference for identifying, authenticating, and verifying signatures and works of wellknown and little-known abstract artists. About 2,300 painters, print...

Species-specific climate responses within ecological communities may disrupt the synchrony of co-evolved mutualisms that are based on the shared timing of seasonal events, such as seed dispersal by ants (myrmecochory). The spring phenology of plants and ants coincides with marked changes in temperature, light and moisture. We investigate how these environmental drivers influence both seed relea...

The following document can be cited as: Boesch, D.F., J.C. Field, and D. Scavia, (Eds.) 2000. The Potential Consequences of Climate Variability and Change on Coastal Areas and Marine Resources: Report of the Coastal Areas and Marine Resources Sector Team, U.S. National Assessment of the Potential Consequences of Climate Variability and Change, U.S. Global Change Research Program. NOAA Coastal O...

Objective: To assess the sexually transmitted infection (STI) awareness, sexual risk behaviors, and related contextual factors of African-American female college students. Participants: Eighty-nine African-American first year female students attending a majority public four-year college in the southern U.S. participated in the study in Spring, 2006. Methods: Participants completed an anonymous ...

This paper presents a concept of component verification framework dedicated to a particular lightweight component environment. The starting point of the paper constitutes a discussion about the significance of verification of syntax inconsistencies in software development. Next, the need of verification in serviceoriented and component-based systems is presented, and various approaches of verif...

The paper describes main facilities of EJB3 and Spring Framework as well as the results of their comparative analysis. Basic features of EJB3 and Spring Framework used for business component management are outlined. The results of frameworks investigation and evaluation are considered. For this purpose 13 criteria have been selected. Offered criteria allow selecting an appropriate framework for...