Abstract: A recharging/refuelling station for an unmanned aerial vehicle (UAV) and a network of the same are provided. Optionally the recharging/refuelling stations are network with a central control. Individual recharging/refuelling stations include a landing platform that includes a UAV capture system and a recharging or refuelling system. The recharging/refuelling stations may be equipped with a variety of sensors or modules to facilitate UAV landing and recharging/refuelling.

Abstract: Methods of functionalizing ?-halogenated hydroxy acid-based polymers and coupling ?-halogenated hydroxy acid-based polymers are provided. Suitable ?-halogenated hydroxy acid-based polymers include ?-halogenated polyesters and ?-halogenated acrylate-based inimers. Methods include coupling ?-halogenated polyesters and functionalizing ?-halogenated polyesters without polymer cleavage. Certain ?-halogenated hydroxy acid-based polymers may be functionalized, crosslinked or, intiate polymerization by inducing the ?-halogenated hydroxy acid-based polymers to make a dioxolenium ion intermediate. The ?-halogenated hydroxy acid-based polymers may also be functionalized using a radical trap.

Abstract: Biodegradable polyesters are made by synthesizing copolymers derived from biodegradable hydroxyacid monomers as well as from hydroxyacid monomers containing a functional group such as an azide group, a halogen group, a thioacetate group, and the like. Preferably, the functionalized biodegradable polyester copolymers are derived from a functionalized hydroxyacid such as a homolog of lactic acid and/or glycolic acid with the copolyester thus containing functional groups on the backbone thereof. These biodegradable polyesters can be utilized wherever biodegradable polyesters are currently used, and also serve as a polymer to which various medical and drug delivery systems can be attached.

Abstract: Methods of functionalizing ?-halogenated hydroxy acid-based polymers and coupling ?-halogenated hydroxy acid-based polymers are provided. Suitable ?-halogenated hydroxy acid-based polymers include ?-halogenated polyesters and ?-halogenated acrylate-based inimers. Methods include coupling ?-halogenated polyesters and functionalizing ?-halogenated polyesters without polymer cleavage. Certain ?-halogenated hydroxy acid-based polymers may be functionalized, crosslinked or, intiate polymerization by inducing the ?-halogenated hydroxy acid-based polymers to make a dioxolenium ion intermediate. The ?-halogenated hydroxy acid-based polymers may also be functionalized using a radical trap.

Abstract: Biodegradable polyesters are made by synthesizing copolymers derived from biodegradable hydroxyacid monomers as well as from hydroxyacid monomers containing a functional group such as an azide group, a halogen group, a thioacetate group, and the like. Preferably, the functionalized biodegradable polyester copolymers are derived from a functionalized hydroxyacid such as a homolog of lactic acid and/or glycolic acid with the copolyester thus containing functional groups on the backbone thereof. These biodegradable polyesters can be utilized wherever biodegradable polyesters are currently used, and also serve as a polymer to which various medical and drug delivery systems can be attached.

Abstract: Biodegradable polyesters are made by synthesizing copolymers derived from biodegradable hydroxyacid monomers as well as from hydroxyacid monomers containing a functional group such as an azide group, a halogen group, a thioacetate group, and the like. Preferably, the functionalized biodegradable polyester copolymers are derived from a functionalized hydroxyacid such as a homolog of lactic acid and/or glycolic acid with the copolyester thus containing functional groups on the backbone thereof. These biodegradable polyesters can be utilized wherever biodegradable polyesters are currently used, and also serve as a polymer to which various medical and drug delivery systems can be attached.

Abstract: A range for sealed combustion of a gaseous fuel has a hob assembly and an oven. The hob assembly comprises a glass ceramic cooking surface sealed to a support box and one or more burners. The hob assembly and oven are connected to a fresh air intake/exhaust manifold, such that there is no air exchange between the range and the room in which it is located. Narrow heat transfer passageways are defined between the cooking surface and an internal surface around each burner.

Abstract: There is provided a range for sealed combustion of a gaseous fuel comprising a hob assembly and an oven. The hob assembly comprises a glass ceramic cooking surface sealed to a support box and one or more burners. The hob assembly and oven are connected to a fresh air intake/exhaust manifold, such that there is no air exchange between the range and the room in which it is located.