Arrhenius plots of translocation velocity as a function of petiole temperature show a marked increase in temperature dependence below 10 C in bean (a chilling-sensitive species) but not in sugar beet (chilling-resistant). The increased temperature dependence below 10 C was not observed for cytoplasmic streaming or oxygen uptake in bean. Bean petioles were served to release pressure in order to ...

By using lactose colored with erythrocin, we examined the effect of particle size on mixing degree during the preparation of triturations with a mortar and pestle. We used powders with different distributions of particle sizes, i.e., powder that passed through 32-mesh but was trapped on a 42-mesh sieve (32/42-mesh powder), powder that passed through a 42-mesh sieve but was trapped on a 60-mesh ...

Soybean (Glycine max cv. Bragg) petiolar tissue containing translocated (14)C-sucrose was quick frozen, freeze-substituted in acetone or propylene oxide and embedded in Epon. This procedure allowed cytological observations on sieve elements whose functional condition could be verified by microautoradiography. Sieve elements and companion cells were essentially free of ice damage. Aside from a P...

Visual cryptography encodes a secret image into n shares which are distributed to n participants. Pixel Sieve method was proposed recently to encode an image into shares, but the encryption quality is poor. In this paper an improved version of pixel sieve method is proposed to achieve more security then existing pixel sieve method. Based on cross merge and key shifting schemes, the proposed met...

We describe Sieve, a prototype Java-based collaborative environment for constructing visualizations interactively. Sieve allows collaborative construction of data-flow networks from an extensible set of modules. Modules may read data from a variety of sources, filter and transform the data in various ways, and generate visualizations. Annotation tools are also provided for mark-up and documenta...