Most of the sample holders currently used in macromolecular crystallography offer limited storage density and poor initial crystal-positioning precision upon mounting on a goniometer. This has now become a limiting factor at high-throughput beamlines, where data collection can be performed in a matter of seconds. Furthermore, this lack of precision limits the potential benefits emerging from au...

M s. Abstract. The quantitative determination of textures is often required in both research and production. The author describes a device, developed at the Metaalinstituut TNO, to be used with an x-ray texture goniometer for the automatic recording of pole figures. 1. Introduction When the crystals of a solid are not randomly oriented, their crystallographic axes tend to be concentrated about ...

BACKGROUND New reliable devices for range of motion (ROM) measures in older adults are necessary to improve knowledge about the functional capability in this population. Dorsiflexion ROM limitation is associated with ankle injuries, foot pain, lower limb disorders, loss of balance, gait control disorders and fall risk in older adults. The aim of the present study was to assess the validity and ...

The refractive index (RI) is probably the single most important parameter in optical systems. Chromatic dispersion, on other hand, indicates how RI depends wavelength and central in, e.g., communication dispersion also plays an role when teaching optics due to captivating natural phenomenon of rainbow white light decomposition with a prism. In this work, we propose explore method characterize t...

Many upper-limb amputees retain the ability to control a hand, however no suitable mechanical hand is available to them. A hand/arm virtual interface (VIA) developed at Rutgers allows amputees to manipulate objects within a virtual environment. The interface uses residual myo-kinetic signals expressed at the surface of the forearm to control the virtual hand, while arm reaching is transduced by...

Four methods, a goniometer, integrating sphere, conical mirror and biconical mirror methods, for the measurement of the diffuse reflectance and transmittance are described and compared. These have been in use for a number of years. A STAR GEM, which has been recently developed in AIST, belongs to the category of the biconical mirror. The disadvantage of the biconical mirror is that it does not ...