In earlier work ([1]-[5]) the authors used the method of sweeping tangents to calculate area and arclength related to certain planar regions. This paper extends the method to determine volumes of solids. Specifically, take a region S in the upper half of the xy plane and allow the plane to sweep tangentially around a general cylinder with the x axis lying on the cylinder. The solid swept by S i...

Wave-swept marine algae must contend with the hydrodynamic forces imposed by extreme water velocities. Nonetheless, they seldom have a shape that appears streamlined and they are constructed of weak, compliant materials. How do they survive? The answer is complex, but a coherent story is beginning to emerge. The combined effect of frond shape and material properties ensures that algae are flexi...

Transport of macromolecules through the phloemhas received increasing interest since thediscovery thatFLOWERINGLOCUST(FT) moves from leaves to the shoot apical meristem, where it induces flowering (Corbesier et al., 2007), indicating thatmacromolecules such as proteins andRNAcan act asmobile regulators of gene expression in distant tissues. Indeed,Molnaretal. (2010)usedgrafting between Arabidop...

A new method to classify electronic devices using a Frequency-Swept Harmonic Radar (FSHR) approach is proposed in this paper. The FSHR enables us utilize the frequency diversity of harmonic responses circuits. Unlike previous studies, frequency-swept signal with constant power transmitted Electronic Circuits Under Test (ECUTs). response found be distinguishable for different types ECUTs. Statis...