Abstract: A process for producing an unsupported molybdenum sulfide nanocatalyst comprising atomizing a molybdenum oxide solution to form a molybdenum oxide aerosol, pyrolyzing the molybdenum oxide aerosol with a laser beam to form the unsupported molybdenum-based nanocatalyst, and pre-sulfiding at least a portion of the unsupported molybdenum-based nanocatalyst to form an unsupported molybdenum sulfide nanocatalyst, wherein the unsupported molybdenum-based nanocatalyst, the unsupported molybdenum sulfide catalyst or both are in the form of nanoparticles with a diameter of 1-10 nm and in a distorted rutile crystalline structure. A method of selective deep hydrodesulfurization whereby a hydrocarbon feedstock having at least one sulfur-containing component and at least one hydrocarbon is contacted with the unsupported molybdenum sulfide nanocatalyst.

Abstract: An intermittent operation based continuous absorption system (IOBCAS) which supports cooling effect during the daytime without the use of a solution pump is provided. The IOBCAS may utilize an isochoric process for pressurization of the system and the system may include a plurality of generator-absorber units that intermittently operate in succession to provide a continuous refrigeration cooling effect during the daytime. The system of the present disclosure enables the plurality of generator-absorber units to switch between a generation, absorption, and heat recovery mode of operation to provide cooling effect during the daytime which a higher coefficient of performance compared with conventional intermittent system.

Abstract: A gastric calibration tube includes a flexible elongate member, a pushing member, and a balloon member. The flexible elongate member has a proximal end portion, a distal end portion, and an outer surface that extends between the proximal and distal end portions. The outer surface defines a side opening. The flexible elongate member defines a lumen that is in communication with the side opening. The pushing member has a proximal portion and a distal portion. The distal portion is advanceable through the lumen of the flexible elongate member and out of the side opening of the flexible elongate member. The balloon member is secured to one or both of the flexible elongate member and the pushing member. The balloon member is inflatable to fix the gastric calibration tube within a patient's stomach.

Abstract: A convectively heated steam/methane reformer having a shell and tube reforming reactor for hydrogen production. A reactor core containing the reactants is convectively heated by hot air flowing through the shell or annulus of the reactor. Heated air is supplied to the reactor through several fluid inlets on the shell side of the reformer.

Abstract: An intermittent operation based continuous absorption system (IOBCAS) which supports cooling effect during the daytime without the use of a solution pump is provided. The IOBCAS may utilize an isochoric process for pressurization of the system and the system may include a plurality of generator-absorber units that intermittently operate in succession to provide a continuous refrigeration cooling effect during the daytime. The system of the present disclosure enables the plurality of generator-absorber units to switch between a generation, absorption, and heat recovery mode of operation to provide cooling effect during the daytime which a higher coefficient of performance compared with conventional intermittent system.

Abstract: A convectively heated steam/methane reformer having a shell and tube reforming reactor for hydrogen production. A reactor core containing the reactants is convectively heated by hot air flowing through the shell or annulus of the reactor. Heated air is supplied to the reactor through several fluid inlets on the shell side of the reformer.

Abstract: A convectively heated steam/methane reformer having a shell and tube reforming reactor for hydrogen production. A reactor core containing the reactants is convectively heated by hot air flowing through the shell or annulus of the reactor. Heated air is supplied to the reactor through several fluid inlets on the shell side of the reformer.

Abstract: A convectively heated steam/methane reformer having a shell and tube reforming reactor for hydrogen production. A reactor core containing the reactants is convectively heated by hot air flowing through the shell or annulus of the reactor. Heated air is supplied to the reactor through several fluid inlets on the shell side of the reformer.

Abstract: A method is disclosed for selective simultaneous production of para-xylene, para-ethyltoluene and para-diethylbenzene from a reactant stream containing ethylbenzene and methanol, as an alkylating agent. The process comprises alkylation of the feedstock in a fluidized-bed rector under alkylating conditions, over a modified ZSM-5-based catalyst to produce streams containing above 95% para-isomers of dialkylbenzenes. The method also includes the steps of multilayer silylation to achieve simultaneous selectivity of the para-isomers of dialkylbenzenes.

Abstract: A gastric tube for use in a bariatric procedure includes an elongate tube and a cannulated plug coupled to the elongate tube. The elongate tube has a proximal end portion and a distal end portion. The elongate tube defines a lumen along a length thereof. The proximal end portion defines an opening in communication with the lumen. The elongate tube includes a blunt tip and an outer surface. The blunt tip is formed on the distal end portion. The outer surface defines a side opening in communication with the lumen. The cannulated plug includes a proximal end and a distal end. The proximal end is configured for connection to a vacuum source. The distal end is configured for removable receipt in the opening of the proximal end portion of the elongate tube to control a flow of one of aspiration and irrigation through the lumen.

Abstract: A gastric tube for use in a bariatric procedure includes an elongate tube and a cannulated plug coupled to the elongate tube. The elongate tube has a proximal end portion and a distal end portion. The elongate tube defines a lumen along a length thereof. The proximal end portion defines an opening in communication with the lumen. The elongate tube includes a blunt tip and an outer surface. The blunt tip is formed on the distal end portion. The outer surface defines a side opening in communication with the lumen. The cannulated plug includes a proximal end and a distal end. The proximal end is configured for connection to a vacuum source. The distal end is configured for removable receipt in the opening of the proximal end portion of the elongate tube to control a flow of one of aspiration and irrigation through the lumen.

Abstract: The metal organic framework adsorbent for solar adsorption refrigeration is a nanocomposite made from a metal organic framework matrix having carbon nanotubes incorporated therein. Preferably, the metal organic framework is composed of MIL-100(Fe), and the carbon nanotubes are functionalized with carboxyl (COOH) groups. In order to prepare the metal organic framework adsorbent, carbon nanotubes functionalized with carboxyl (COOH) groups are first added to an aqueous solution of a precursor salt, such as ferric trinitrate nonahydrate (Fe(NO3)3.9H2O), to form a first mixture. The first mixture is then sonicated and a 1,3,5 benzenetricarboxylic acid ligand is added thereto to form a second mixture. The second mixture is then sonicated and heated, and the metal organic framework nanocomposite is separated therefrom, preferably as a powder.

Abstract: A ligation and specimen retrieval device is described for endoscopic use that includes a pouch defining a receptacle and having an open end and a closed end, a first suture member defining a first loop, a second suture member defining a second loop and a closure member positioned about the open end of the pouch. The device is transitionable from a non-deployed state in which the pouch and the first and second loops are positioned within a distal end of an outer shaft of the device to a deployed state in which the pouch and the first and second loops are positioned externally of the outer shaft of the device.

Abstract: According to embodiments described in the specification, a method, system and apparatus for code and expiry date generation are provided. The method comprises receiving a request to generate a code at the processor; automatically selecting one of a plurality of code generation rules from the memory based on an item identifier derived from the request, the selected rule including one or more code fragment definitions; retrieving data from at least one reference table stored in the memory, based on the code fragment definitions; generating the one or more code fragments according to the selected rule using the retrieved data; and concatenating the generated code fragments to generate the code.

Abstract: A gastric tube for use in a bariatric procedure includes an elongate tube and a cannulated plug coupled to the elongate tube. The elongate tube has a proximal end portion and a distal end portion. The elongate tube defines a lumen along a length thereof. The proximal end portion defines an opening in communication with the lumen. The elongate tube includes a blunt tip and an outer surface. The blunt tip is formed on the distal end portion. The outer surface defines a side opening in communication with the lumen. The cannulated plug includes a proximal end and a distal end. The proximal end is configured for connection to a vacuum source. The distal end is configured for removable receipt in the opening of the proximal end portion of the elongate tube to control a flow of one of aspiration and irrigation through the lumen.

Abstract: The present technology is generally directed to providing beds of coking material to charge a coking oven. In various embodiments, a quantity of first particulate material, having a first particulate size and bulk density, is combined with a second particulate material, having a second particulate size and bulk density, to define a multi-modal bed of coking material. The multi-modal bed of coking material exhibits an optimized bulk density that is greater than an ideal bulk density predicted by a linear combination of the bulk densities of the individual materials.

Abstract: The present technology is generally directed to providing beds of coking material to charge a coking oven. In various embodiments, a quantity of first particulate material, having a first particulate size and bulk density, is combined with a second particulate material, having a second particulate size and bulk density, to define a multi-modal bed of coking material. The multi-modal bed of coking material exhibits an optimized bulk density that is greater than an ideal bulk density predicted by a linear combination of the bulk densities of the individual materials.

Abstract: The present technology is generally directed to providing beds of coking material to charge a coking oven. In various embodiments, a quantity of first particulate material, having a first particulate size and bulk density, is combined with a second particulate material, having a second particulate size and bulk density, to define a multi-modal bed of coking material. The multi-modal bed of coking material exhibits an optimized bulk density that is greater than an ideal bulk density predicted by a linear combination of the bulk densities of the individual materials.

Abstract: The adaptive pitch control system for wind generators is utilized in variable speed doubly fed induction generator (DFIG) systems. An adaptive neural network generates optimized controller gains for pitch control. The pitch controller parameters are generated using intelligent differential evolution, a type of genetic algorithm. A back propagation neural network is trained using the generated pitch controller parameters, thereby tuning the weights of the network according to the system states in a variable wind speed environment.

Abstract: An economizer for a solar powered intermittent absorption refrigeration system improves the coefficient of performance of the refrigeration system. The economizer recovers waste energy rejected by an absorber during an absorption process, stores the waste energy, and supplies the waste energy to a generator during a generation process, thereby reducing the amount of energy input needed to operate the system.