Abstract: An animal trap contains multiple tubular sections connected with side latches to form a single hollow structure. A trigger mechanism includes a curved wobble plate with curvature matching a rear tube section. When stepped on by an animal, the curved wobble plate pulls a trigger pin from a trap door causing the door to fall to the ground. A rotatable door latch then moves into a locked position preventing the door from opening. After determining the trap to contain an animal, a trapper transports the trap to a remote location. A pull rope is connected to at least one of the sections, and another section may be anchored to the ground using anchor pins. The trapper undoes the side latches and rotates the door latch into an unlocked position. The trapper removes the door from the trap and pulls the trap sections apart thereby releasing the animal from the trap.

Abstract: A method for producing complex metal oxide having nano-sized grains that includes the steps of forming a mixture containing at least one metal cation dissolved in a solution and particulate material containing at least one further metal in the form of metal(s) or metal compound(s) and treating the mixture to form the complex metal oxide having nano-sized grains. The at least one further metal from the particulate material becomes incorporated into the complex metal oxide.

Abstract: A method of producing porous complex oxides includes the steps of providing a mixture of a) precursor elements suitable to produce the complex oxide; or b) one or more precursor elements suitable to produce particles of the complex oxide and one or more metal oxide particles; and c) a particulate carbon-containing pore-forming material selected to provide pore sizes in the range of approximately 7 nm to 250 nm, and treating the mixture to (i) form the porous complex oxide in which two or more of the precursor elements from (a) above or one or more of the precursor elements and one or more of the metals in the metal oxide particles from (b) above are incorporated into a phase of the complex metal oxide and the complex metal oxide has grain sizes in the range of about 1 nm to 150 nm; and (ii) remove the pore-forming material under conditions such that the porous structure and composition of the complex oxide is substantially preserved. The method may be used to produce non-refractory metal oxides as well.

Abstract: Particles of mixed metal oxide include at least two metal species. The particles have a grain size within the range of 1-100 nm. The particles are substantially crystalline. The particles contain only small or negligible amounts of amorphous material. The at least two metal species are uniformly dispersed in the particles.