Abstract: Techniques for providing an on-demand development environment are described. A service of a provider network receives a request to launch a development environment, such as a notebook, from an electronic device. The service obtains an identification of a computing cluster hosted by the provider network. The service obtains an identification of a compute instance hosted within the provider network, the compute instance executing a software environment to host one or more development environments. The service causes the compute instance to launch a development environment. The service sends a message to configure the launched development environment to execute a computer program written in the development environment using the computing cluster. The service generates a token to secure communications between the electronic device and the development environment and sends the token to an originator of the request.

Abstract: An apparatus, die, and method can be used form a ribbon from a melt, where capillaries are relatively short and spacers are relatively long as compared to a die opening. Such a configuration can cause the melt to flow is a transverse direction that is substantially parallel to the solid/liquid interface to help move impurities to desired locations. In a particular embodiment, a crystal ribbon can be formed where defects, such as microvoids and impurities, are at higher concentrations near outer edges of the crystal ribbon. The outer edges can be removed to produce crystal substrates that are substantially free of microvoids and have no or a relatively low concentration of impurities. In another particular embodiment, the transverse flow can also help to increase the crystal growth rate.

Abstract: A solid oxide fuel cell includes an anode layer, an electrolyte layer over the anode layer, and a cathode layer over the electrolyte layer. At least one of the anode layer and the cathode layer defines a gas manifold. The gas manifold includes a gas inlet, defined by an edge of the anode layer or cathode layer, a gas outlet, defined by the same or a different edge of the anode layer or cathode layer, and a plurality of gas flow channels in fluid communication with the gas inlet and gas outlet. The gas flow channels can have diameters that conduct flow of gas from the gas inlet at substantially equal flow rates among the gas flow channels.

Abstract: A textured film is provided. The textured film includes a first layer forming an outer surface and including a fluoropolymer. A second layer includes an encapsulant layer. The first layer and the second layer are mechanically textured to provide a plurality of surface features on the outer surface and extend into the second layer. The film can be applied as a textured film overlying an active component of a photovoltaic device.

Abstract: The invention relates to a gas filter structure for filtering particulate-laden gases, of the honeycomb type and comprising an assembly of longitudinal adjacent channels of mutually parallel axes separated by porous filtering walls, said channels being alternately blocked off at one or the other of the ends of the structure so as to define inlet channels and outlet channels for the gas to be filtered and so as to force said gas to pass through the porous walls separating the inlet and outlet channels, said structure being characterized in that the inlet and outlet channels share between them at least one wall of constant average thickness d over the entire length of the filter structure, in that the inlet or outlet channels share between them at least one wall of constant average thickness e over the entire length of the filter structure and in that the e/d ratio is strictly greater than 1.

Abstract: The subject of the invention is a gas filter structure for filtering particulate-laden gases, of the honeycomb type and comprising an assembly of longitudinal adjacent channels (21, 22) of mutually parallel axes separated by porous filtering walls (23), said channels (21, 22) being alternately blocked off at one or the other of the ends of the structure so as to define inlet channels (21) and outlet channels (22) for the gas to be filtered and so as to force said gas to pass through the porous walls (23) separating the inlet (21) and outlet (22) channels, said structure being such that, in cross section: the ratio R of the sum of the areas of the inlet channels to the sum of the areas of the outlet channels is greater than 1; at least some of the porous walls (23) are wavy so as to be concave relative to the center of the inlet channels (21) and convex in their middle relative to the center of the outlet channels (22); and the outlet channels (22) possess at least one rounded corner (25).

Abstract: A solid oxide fuel cell includes an anode layer, an electrolyte layer over the anode layer, and a cathode layer over the electrolyte layer. At least one of the anode layer and the cathode layer defines a gas manifold. The gas manifold includes a gas inlet, defined by an edge of the anode layer or cathode layer, a gas outlet, defined by the same or a different edge of the anode layer or cathode layer, and a plurality of gas flow channels in fluid communication with the gas inlet and gas outlet. The gas flow channels can have diameters that conduct flow of gas from the gas inlet at substantially equal flow rates among the gas flow channels.