Abstract: A simulation device for simulating a surgical procedure includes an open box and a three-dimensional model of a bony or soft tissue anatomical structure that is positionable in the open box. A box cover is positionable over the open box. Advantageously, the box cover includes surface structures that simulate anatomical structures relevant to the surgical procedure.

Abstract: Certain exemplary embodiments can provide a method comprising pouring a castable material into a mold to form a dish. The method comprises pressing a first object into the castable material thereby forming a first cavity in the dish. The method comprises pressing a second object into the castable material thereby forming a second cavity in the dish.

Abstract: In one aspect, reverse electrodialysis systems are described herein having constructions operable to reduce membrane stack resistance, thereby requiring significantly less membrane surface area for meaningful electrical power generation. A reverse electrodialysis system described herein comprises an anode and cathode adjacent to a membrane stack, the membrane stack comprising alternating anion and cation exchange membranes defining diluate and concentrate ionic solution compartments, wherein an ion exchange medium is positioned in a diluate compartment.

Abstract: In one aspect, reverse electrodialysis systems are described herein having constructions operable to reduce membrane stack resistance, thereby requiring significantly less membrane surface area for meaningful electrical power generation. A reverse electrodialysis system described herein comprises an anode and cathode adjacent to a membrane stack, the membrane stack comprising alternating anion and cation exchange membranes defining diluate and concentrate ionic solution compartments, wherein an ion exchange medium is positioned in a diluate compartment.

Abstract: A pistol grip spring compressor system including a spring lock unit, an actuator assembly, and an anvil module such that the spring lock unit secures a valve spring coil of a valve spring unit from an internal combustion engine in a fixed position relative to a frame element to permit an anvil, provided by the anvil module and positioned against a valve spring retainer of the valve spring unit, to maintain compression on the valve spring while the valve spring unit is separated from an automobile internal engine combustion block.