In the 1930’s, Tarski introduced his plank problem at a time when the field Discrete Geometry was about to born. It is quite remarkable that Tarski’s question and its variants continue to generate interest in the geometric and analytic aspects of coverings by planks in the present time as well. The paper is of a survey type with some new results and with a list of open research problems on the ...

Procedures for the control of timber strength grading machines have been established, including both machine control and output control. For the machine control so called control planks have been developed which enables a dynamic control of the whole grading system, i.e. the grading machine as well as infeed and outfeed equipment. Some generic control plank designs have been developed which may...

This study aims to determine the effect of core stability exercises (Elbow Plank, High and Elbow Plank With Legs Open) on abdominal muscle strength balance. Quasi-experimental research design using nonequivalent control group design. The purposive sampling technique was used in this subjects where total obtained 32 people. instruments were sit up test (30 seconds) measure standing stork results...

Almost all living species regularly explore environments that they experience as pleasant, aversive, arousing or frightening. We postulate that such exploratory behavior and emotional experience both are regulated based on the interdependent perception of one's body and stimuli that collectively define a spatial context such as a cliff. Here we examined this by testing if the interaction of the...

An Abaqus/Standard FEA based study was carried out to develop a structural format for a wing sail used on a sailing boat, V-39 Albatross. As well as providing a novel structural solution to meet a challenging set of requirements, the study has given the necessary mass properties and stiffness data required to further progress the preliminary design phase of the overall boat. The brief for the b...

BACKGROUND Prone, supine, and side position exercises are employed to enhance core stability. HYPOTHESIS Overall core muscle activity would be greater in prone position exercises compared with supine and side position exercises. STUDY DESIGN Controlled laboratory study. METHODS Eighteen men and women between 23 and 45 years of age served as subjects. Surface electrodes were positioned ove...

Mario Blaum∗, James S. Plank†, Moshe Schwartz‡, and Eitan Yaakobi§ ∗IBM Research Division, Almaden Research Center, San Jose, CA 95120, USA †Dept. of Electrical Engineering and Computer Science, Univ. of Tennessee, Knoxville, TN 37996, USA ‡Department of Electrical and Computer Engineering, Ben-Gurion University, Beer Sheva 8410501, Israel §Department of Electrical Engineering, California Insti...