Abstract: A mathematical learning game that facilitates engagement through playing cards that define the target mathematical equations that opposing teams attempt to solve first to win battles against each other. The mathematical equations interplay with the results of rolled dice, wherein these rolled results provide the operand of the mathematical equations. The playing cards also provide a character narrative and/or a set of actions or rules that enhances and/or defines the rewards of correctly solving the mathematical equation first.

Abstract: An antenna includes a piezoelectric disc. The antenna further includes a first electrode disposed on a first surface of the piezoelectric disc and a second electrode disposed on a second surface of the piezoelectric disc that is opposite to the first surface. The first electrode and the second electrode are to receive a time-varying voltage to excite a mechanical vibration in the piezoelectric disc, and the piezoelectric disc is to radiate electromagnetic energy at a particular frequency responsive to the mechanical vibration.

Abstract: Disclosed is a freezer cabinet (1) comprising a sensor system (37, 38, 39, 40) for detecting at least one parameter indicative of the state of the freezer cabinet (1); and a slot (23) shaped to receive a communication device (10) configured to communicate with the sensor system (37, 38, 39, 40). The slot (23) extends into the cabinet (1) from a trapezoidal orifice (24) in an outer wall (6) of the cabinet (1).

Abstract: The invention relates to a cultured bivalve mollusk (particularly quahog) pearl and a method of preparation thereof. The method includes implanting a nucleus material and a donor bivalve mollusk mantle tissue in the gonad or gut area of an anesthetized bivalve mollusk. An ideal bivalve mollusk or a quahog is four-years old or younger for rapid pearl production. The cultured pearl is harvested after a period ranging from six months to three years. Such cultured bivalve mollusk pearl is identical in appearance to the natural pearls.

Abstract: An antenna includes a piezoelectric disc. The antenna further includes a first electrode disposed on a first surface of the piezoelectric disc and a second electrode disposed on a second surface of the piezoelectric disc that is opposite to the first surface. The first electrode and the second electrode are to receive a time-varying voltage to excite a mechanical vibration in the piezoelectric disc, and the piezoelectric disc is to radiate electromagnetic energy at a particular frequency responsive to the mechanical vibration.

Abstract: Described is a selective catalytic reduction catalyst comprising a zeolitic framework material of silicon and aluminum atoms, wherein a fraction of the silicon atoms are isomorphously substituted with a tetravalent metal. The catalyst can include a promoter metal such that the catalyst effectively promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150 to 650° C. In another aspect, described is a selective catalytic reduction composite comprising an SCR catalyst material and an ammonia storage material comprising a transition metal having an oxidation state of IV. The SCR catalyst material promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150° C. to 600° C., and the SCR catalyst material is effective to store ammonia at temperatures of 400° C. and above.

Abstract: Described is a selective catalytic reduction material comprising a spherical particle including an agglomeration of crystals of a molecular sieve. The catalyst is a crystalline material that is effective to catalyze the selective catalytic reduction of nitrogen oxides in the presence of a reductant at temperatures between 200° C. and 600° C. A method for selectively reducing nitrogen oxides and an exhaust gas treatment system are also described.

Abstract: The invention relates to a cultured bivalve mollusk (particularly quahog) pearl and a method of preparation thereof. The method includes implanting a nucleus material and a donor bivalve mollusk mantle tissue in the gonad or gut area of an anesthetized bivalve mollusk. An ideal bivalve mollusk or a quahog is four-years old or younger for rapid pearl production. The cultured pearl is harvested after a period ranging from six months to three years. Such cultured bivalve mollusk pearl is identical in appearance to the natural pearls.

Abstract: Described is a selective catalytic reduction material comprising a spherical particle including an agglomeration of crystals of a molecular sieve. The catalyst is a crystalline material that is effective to catalyze the selective catalytic reduction of nitrogen oxides in the presence of a reductant at temperatures between 200° C. and 600° C. A method for selectively reducing nitrogen oxides and an exhaust gas treatment system are also described.

Abstract: Described is a selective catalytic reduction material comprising a spherical particle including an agglomeration of crystals of a molecular sieve. The catalyst is a crystalline material that is effective to catalyze the selective catalytic reduction of nitrogen oxides in the presence of a reductant at temperatures between 200° C. and 600° C. A method for selectively reducing nitrogen oxides and an exhaust gas treatment system are also described.

Abstract: An apparatus for holding the straps or sleeves of a sports or group pinny (also called a scrimmage vest) from falling off the shoulders and thereby improving the fit of the garment and allowing the wearer better mobility. The apparatus secures a first and a second strap of a sports or group vest, the apparatus having a horizontal section and a pair of loops extending from the horizontal section. Each loop includes an aperture for receiving one of the shoulder straps of the sports or group pinny.

Abstract: Described are compositions and catalytic articles comprising both a copper-promoted 8-ring small pore molecular sieve and an iron-promoted 8-ring small pore molecular sieve. The catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.

Abstract: Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.

Abstract: Described is a selective catalytic reduction catalyst comprising a zeolitic framework material of silicon and aluminum atoms, wherein a fraction of the silicon atoms are isomorphously substituted with a tetravalent metal. The catalyst can include a promoter metal such that the catalyst effectively promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150 to 650° C. In another aspect, described is a selective catalytic reduction composite comprising an SCR catalyst material and an ammonia storage material comprising a transition metal having an oxidation state of IV. The SCR catalyst material promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150° C. to 600° C., and the SCR catalyst material is effective to store ammonia at temperatures of 400° C. and above.

Abstract: Described is a selective catalytic reduction material comprising a spherical particle including an agglomeration of crystals of a molecular sieve. The catalyst is a crystalline material that is effective to catalyze the selective catalytic reduction of nitrogen oxides in the presence of a reductant at temperatures between 200° C. and 600° C. A method for selectively reducing nitrogen oxides and an exhaust gas treatment system are also described.

Abstract: Described are compositions and catalytic articles comprising both a copper-promoted 8-ring small pore molecular sieve and an iron-promoted 8-ring small pore molecular sieve. The catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.

Abstract: Described are catalyst compositions, catalytic articles, methods of manufacturing catalytic articles and exhaust gas treatment systems and methods that utilize the catalytic articles. The catalyst composition comprises an oxidation catalyst comprising a washcoat layer including a platinum group metal supported on a refractory metal oxide support and porous molecular sieve particles having internal pores, the molecular sieve particles protected by a protecting material selected from an organic wax encapsulating the molecular sieve particles, a polymer encapsulating the molecular sieve particles, an inorganic oxide deposited on the surface of the molecular sieve particles, or an organic compound filling the internal pores of the molecular sieve particles, wherein the protecting material prevents interaction of the molecular sieve particles with the platinum group metal.

Abstract: Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.

Abstract: An apparatus for holding the straps or sleeves of a sports or group pinny (also called a scrimmage vest) from falling off the shoulders and thereby improving the fit of the garment and allowing the wearer better mobility. The apparatus comprises a clip for securing a first and a second strap of a sports or group vest, the clip having a horizontal section and a pair of loops extending from the horizontal section. Each loop comprises an aperture for receiving one of the shoulder straps of the sports or group pinny.