electrochemical impedance spectroscopy (eis) is a suitable and powerful diagnostic testing method for fuel cells (fcs) since it is non-destructive and provides useful information about fc performance and its components. in this study, for the first time, a 500w cascade type 4 cells stack with integrated humidifier, water separator and internal manifolds was designed, fabricated and tested. the ...

We de ne a partial continuation as the di erence of two continua tions We exhibit in a single framework several design choices and their impact on semantics The ability of partial continuations to manipulate stack frames blurs the nature of dynamic extent therefore we introduce a new concept of pre xal extent that characterises the time during which a partial continu ation can be rei ed We prop...

We deene a partial continuation as the diierence of two continuations. We exhibit, in a single framework, several design choices and their impact on semantics. The ability of partial continuations to manipulate stack frames blurs the nature of dynamic extent; therefore, we introduce a new concept of preexal extent that characterises the time during which a partial continuation can be reiied. We...

In the title compound, C8H9NO4, the pyrrolidine ring (r.m.s. deviation 0.014 Å) is almost normal to the mean plane of the propenoate group (r.m.s deviation 0.028 Å), making a dihedral angle of 86.58 (4)°. In the crystal, mol-ecules are linked via pairs of weak C-H⋯O hydrogen bonds, forming inversion dimers which stack along the c axis.

Very high resolution SAR tomography using multiple data stacks from different viewing angles enables us for the first time to generate 4D point clouds of the illuminated area from space with a point density comparable to LiDAR. They can be potentially used for façade reconstruction and monitoring in urban environment. In this paper, we propose an approach for façade detection and reconstruction...

In the title compound, C(19)H(15)ClN(2)O, the quinoline ring forms a dihedral angle of 43.24 (1)° with the benzene ring of the dihydroquinolinyl system. In the crystal, mol-ecules are linked through a single weak C-H⋯O hydrogen bond, forming ribbons which extend along (100), giving alternating zigzag mol-ecular layers which stack down the b-axis direction.

The title compound, C9H11NO2S2, contains a 1,3-di-thiane ring which has a twist-boat conformation. The dihedral angle between the mean planes of the ethyl acetate group and the di-thiane ring is 17.56 (13)°. In the crystal, mol-ecules stack in layers up the a-axis direction, however, there are no significant inter-molecular inter-actions present.

We derive that, in all-pass (unity amplitude transmittance or reflectance) one-dimensional layered structures, the tangent of the group-propagation angle, the group delay, and the stored energy are approximately proportional. Thus photonic crystal superprisms and spatial dispersion in nonperiodic photonic nanostructures are generally related to wavelength-dependent stored energy in the stack.

In the title compound, C17H15BrO2S, the 4-methyl-benzene ring makes a dihedral angle of 89.01 (7)° with the mean plane [r.m.s. deviation = 0.013 (2) Å] of the benzo-furan fragment. In the crystal, mol-ecules are linked into supra-molecular layers that stack along [001] by weak C-H⋯O, C-H⋯π and C-S⋯π [3.364 (2) Å] inter-actions.

In the title compound, C13H8BrClOS, the thienyl ring is not coplanar with the benzene ring, their planes forming a dihedral angle of 13.2 (4)°. In the crystal, mol-ecules stack along the a axis, with the inter-planar separation between thienyl rings and between benzene rings being 3.925 (6) Å. The sample is an inversion twin.