We show that N−1 degenerate dark states can be generated by coupling N-fold degenerate ground states and a common excited state with N laser fields. Interferences between light waves with different frequencies can produce laser fields with time-dependent amplitudes, which can induce not only U N non-Abelian vector fields but also the scalar ones for the adiabatic motion of atoms in such laser f...

A six-coordinate manganese (II) complex with the tripod ligand tris(2-benzimidazolylmethyl)amine (ntb), with composition [Mn(ntb) (4-hydroxycinnamate)](4-hydroxycinnamate) · (DMF)0.5 · (H2O)3, was synthesized and characterized by elemental and thermal analyses, electrical conductivity, IR, and UV/vis spectral measurements. The crystal structure of the complex has been determined by the single-c...

A line voxelization algorithm generates from a 3D continuous line a 3D discrete line, which is a set of connected voxels approximating the continuous line. The connectivity of this set is a predeened attribute that speciies the way consecutive voxels are related along the line, and determines the nal shape and penetration property of the discrete line. In this paper these properties and the acc...

This report describes a dataset of color, stereo images of ordnance collected at a live-re test range near Nellis Air Force Base. The images consist primarily of BLU-97 shells. 174 stereo pairs of images were collected, containing approximately 184 instances of BLU-97. The data was collected using a pair of Kodak DCS-410 digital cameras mounted rigidly on a tripod. Subsequent processing was per...

Integral membrane proteins (IMPs) are crucial biological components, mediating the transfer of material and information between cells and their environment. Many IMPs have proven to be difficult to isolate and study. High-resolution structural information on this class of proteins is limited, largely because of difficulties in generating soluble forms of such proteins that retain native folding...

Multipod gold nanocrystals have been synthesized via a simple solution-phase chemical reduction method at room temperature. Two types of structurally different particles are observed, including the regular tripod, which lies on the substrate with its {111} plane, and the cross-like tetrapod that sits on its {100} plane. Both structures have pods of 10 nm sizes and grow along 110 directions. Var...

The electromagnetically induced transparency (EIT) phenomenon in a four level atomic system with tripod configuration is studied. The results show that this configuration is equivalent to the combination of two single three-level Λ configurations, which, under certain conditions, results in the so-called double-EIT (DEIT) phenomenon. The properties of the double transparency windows for DEIT ar...

In this paper, we introduce a hexapedal locomotion controller that simulation evidence suggests will be capable of driving our RHex robot at speeds exceeding five body lengths per second with reliable stability and rapid maneuverability. We use a low dimensional passively compliant biped as n "template" a control target !or the alternating tripod gait of the physical machine. We impose upon the...