Abstract: The online concierge system generates task units based on orders and assigns batches of task units to pickers. The online concierge system generates task units based on received orders. The online concierge system generates permutations of these task units to generate candidate sets of task batches. The online concierge system scores each of these candidate sets, and selects a set of task batches to assign to pickers based on the scores. Additionally, to determine which task UI to display to the picker, the picker client device uses a UI state machine. The UI state machine is a state machine where each state corresponds to a task UI to display on the picker client device. The state transitions between the UI states of the UI state machine indicate which UI state to transition to from a current UI state based on the next task unit in the received task batch.

Abstract: A double metal cyanide [DMC] catalyst and a method for the synthesis thereof at room temperature is disclosed herein. Various Schiff bases are incorporated as organic complexing agents in the DMC catalysts. The catalysts of the present invention are highly active for the ring opening polymerization (ROP) of epoxides in the presence of different H-functional initiators to produce polyether polyols (PEPO) with a wide range of average molecular weight (Mw) and polydispersity index (PDI).

Abstract: A copolymer, poly(thiophene-co-benzothiophene-co-dibenzothiophene), and method of preparation thereof. The copolymer, poly(thiophene-co-benzothiophene-co-dibenzothiophene), having a formula (I): wherein x=H or R, y=H or R, z=H or R, and n=500-58000, wherein R is selected from alkyl or alicyclic chain substituents, and Ar is an aromatic ring.

Abstract: In accordance with various embodiments, described herein are systems and methods for enabling backup and recovery of cloud services (services) in a cloud computing environment (cloud environment). The techniques described herein can be used, for example, to facilitate restoration of a service that may have been originally provisioned as part of a user system/environment, within the cloud environment, and was subsequently lost due to accident deletion of the service, or cloud account termination. A service archive, created during a backup process, includes an archive file that contains the artifacts that were installed and/or created when the service was provisioned; and a metadata file that contains the current state information for the service when the backup was performed. During a recovery process, a lost service can be provisioned within the user system/environment, using the contents of the service archive, irrespective of whether the service itself still exists within the user system/environment.

Abstract: A device (100) for measuring pose and/or motion of an operator's hand (1) comprising: a first link (10) being adapted to be fixedly held and the distal end (12) being coupled to a second link (20) so as to allow a rotation motion there between about a first axis (15); the second link (20) being coupled to a third link (30) so as to allow a rotation motion there between about a second axis (25), the second axis (25) being substantially perpendicular to the first axis (15); the first edge (41) of the parallelogram linkage (40) being coupled to the third link (30); the second edge (42) of the parallelogram linkage (40) being coupled to a fourth link (50); the fourth link (50) being coupled to a fifth link (60), a distal end (62) thereof being coupled to a sixth link (70); and a grasper (80) being operably coupled to the sixth link (70).

Abstract: A method for enriching the oxygen fed to a fuel cell cathode intake comprises receiving at the cathode intake an oxidant from the air, storing oxygen in an adsorber coupled to the cathode intake, and adding the stored oxygen from the adsorber to the oxidant at the cathode intake during high current density operation. A fuel cell system comprises a membrane, an anode on one side of the membrane, and a cathode, coupled to a blocking member, on a second side of the membrane. The cathode comprising an intake configured to allow an oxidant to flow through the cathode, and an outlet configured to discharge unreacted oxygen from the cathode, an adsorber, coupled to the blocking member, configured to store oxygen for adding to the oxidant flowing through the cathode intake during high current density operation.

Abstract: A membrane electrode assembly includes a membrane, a gas diffusion layer and a catalyst layer between the membrane and the gas diffusion layer. The catalyst layer comprises catalyst comprising active catalyst particles supported on support particles, a proton conducting ionomer and a phospholipid containing soluble oxygen. One method of preparation includes preparing a catalyst solution comprising a solvent and catalyst, adding proton conducting ionomer to the catalyst solution to form a catalyst ink, saturating a solution of solvent and a phospholipid with oxygen and mixing the saturated phospholipid with the catalyst ink.

Abstract: In accordance with various embodiments, described herein are systems and methods for enabling backup and recovery of cloud services (services) in a cloud computing environment (cloud environment). The techniques described herein can be used, for example, to facilitate restoration of a service that may have been originally provisioned as part of a user system/environment, within the cloud environment, and was subsequently lost due to accident deletion of the service, or cloud account termination. A service archive, created during a backup process, includes an archive file that contains the artifacts that were installed and/or created when the service was provisioned; and a metadata file that contains the current state information for the service when the backup was performed. During a recovery process, a lost service can be provisioned within the user system/environment, using the contents of the service archive, irrespective of whether the service itself still exists within the user system/environment.

Abstract: A membrane electrode assembly includes a membrane, a gas diffusion layer and a catalyst layer between the membrane and the gas diffusion layer. The catalyst layer comprises catalyst comprising active catalyst particles supported on support particles, a proton conducting ionomer and a phospholipid containing soluble oxygen. One method of preparation includes preparing a catalyst solution comprising a solvent and catalyst, adding proton conducting ionomer to the catalyst solution to form a catalyst ink, saturating a solution of solvent and a phospholipid with oxygen and mixing the saturated phospholipid with the catalyst ink.

Abstract: A method for enriching the oxygen fed to a fuel cell cathode intake comprises receiving at the cathode intake an oxidant from the air, storing oxygen in an adsorber coupled to the cathode intake, and adding the stored oxygen from the adsorber to the oxidant at the cathode intake during high current density operation. A fuel cell system comprises a membrane, an anode on one side of the membrane, and a cathode, coupled to a blocking member, on a second side of the membrane. The cathode comprising an intake configured to allow an oxidant to flow through the cathode, and an outlet configured to discharge unreacted oxygen from the cathode, an adsorber, coupled to the blocking member, configured to store oxygen for adding to the oxidant flowing through the cathode intake during high current density operation.

Abstract: An active material layers for a fuel cell membrane electrode assembly includes metal oxide particles, a non-ionomer proton conductor and active catalyst particles supported on the metal oxide particles.

Abstract: An active material layers for a fuel cell membrane electrode assembly includes metal oxide particles, a non-ionomer proton conductor and active catalyst particles supported on the metal oxide particles.

Abstract: Non-carbon support particles for use in electrocatalyst include a first metal oxide having a high surface area doped with an electrically conductive transition metal. An example of non-carbon support particle for use in electrocatalyst comprises titanium oxide particles doped with ruthenium.