A process for testing a turbine of a gas turbine engine at high altitudes, where a large volume of compressed air is stored in a large reservoir of at least 10,000 m.sup.3 such as an underground storage cavern, compressed air from the storage reservoir is passed through heat exchanger to preheat the compressed air to a temperature that would normally be discharged from a compressor, the preheated compressed air is burned with a fuel in the combustor, and additional compressed air from the reservoir is passed through an injector located downstream from the turbine to produce a decreased pressure such that a low atmospheric condition at the turbine exit is simulated.

A process for testing a combustor of a gas turbine engine, where a large volume of compressed air is stored in a large reservoir of at least 10,000 m.sup.3 such as an underground storage cavern, compressed air from the storage reservoir is passed through heat exchanger to preheat the compressed air to a temperature that would normally be discharged from a compressor, the preheated compressed air is burned with a fuel in the combustor, and additional compressed air from the reservoir is passed through an injector located downstream from the combustor to produce a decreased pressure such that a low atmospheric condition at the combustor exit is simulated.

A process for testing a combustor of a gas turbine engine, where a large volume of compressed air is stored in a large reservoir of at least 10,000 m.sup.3 such as an underground storage cavern, compressed air from the storage reservoir is passed through heat exchanger to preheat the compressed air to a temperature that would normally be discharged from a compressor, the preheated compressed air is burned with a fuel in the combustor, and additional compressed air from the reservoir is passed through an injector located downstream from the combustor to produce a decreased pressure such that a low atmospheric condition at the combustor exit is simulated.

Systems and methods for determining shrinkage of a commodity sold by a store are provided which may include: identifying data indicative of a volume of the commodity, associating a label with a container that holds the commodity, collecting the label information with a reader and transmitting collected label information to at least one server, automatically determining data characterizing the material in the container, associating the label information and the data characterizing the material in the container, and determining performance data related to the commodity by comparing the data indicative of the volume of the commodity supplied to the store, the data indicative of the volume of the commodity sold by the store, and the data characterizing the material in the container.

Systems and methods for determining shrinkage of a commodity sold by a store are provided which may include: identifying data indicative of a volume of the commodity, associating a label with a container that holds the commodity, collecting the label information with a reader and transmitting collected label information to at least one server, automatically determining data characterizing the material in the container, associating the label information and the data characterizing the material in the container, and determining performance data related to the commodity by comparing the data indicative of the volume of the commodity supplied to the store, the data indicative of the volume of the commodity sold by the store, and the data characterizing the material in the container.

The invention relates to a plug connection element for releasable connecting two adjacent wall elements of a transportation box, having a first U-shaped receptacle for an edge region of the first wall element, which is formed from a first base plate and an inner leg angled to the latter and an adjoined angled outer leg, and a second U-shaped receptacle for an edge region of the second wall element, which is formed from a second base plate and an inner leg angled to the latter and an adjoined angled outer leg, wherein the first and second U-shaped receptacle are identically aligned, wherein the first and second receptacle are connected to each other by means of a bending joint, so that the U-shaped receptacles is adjustable in terms of their angular position to each other.

Systems, methods and devices are provided for transporting, tracking and managing waste or recyclable materials, which may include one or more devices for transporting waste or recyclable material. The device may comprise a base; and a collapsible sleeve movable between an open state and a collapsed state, wherein the collapsible sleeve in the open state interfaces in a nesting manner with the base to form a bin for receiving and transporting waste material.

Systems, methods and devices are provided for tracking and managing waste or recyclable materials, which may include one or more devices enabled to capture and record information about waste material at a point in a distribution chain, as well as information technology systems for collecting, processing, analyzing and otherwise managing information about a large number and variety of streams of waste material. A system includes a label reader for reading a label that was associated with a batch of material at an originating site, a device for measuring a parameter indicative of the weight of the batch of material, and a communications facility for communicating the weight of the batch of material and the label information to a system for tracking the batch of waste material.

Systems, methods and devices are provided for tracking and managing waste or recyclable materials, which may include one or more devices enabled to capture and record information about waste material at a point in a distribution chain, as well as information technology systems for collecting, processing, analyzing and otherwise managing information about a large number and variety of streams of waste material.

Systems, methods and devices are provided for tracking and managing waste or recyclable materials, which may include one or more devices enabled to capture and record information about waste material at a point in a distribution chain, as well as information technology systems for collecting, processing, analyzing and otherwise managing information about a large number and variety of streams of waste material. A system includes an imaging device for capturing an image of a batch of waste or recyclable material or a bin for the material, wherein the imaging device is located at or on the originating site, a transport device for the material, or a material handling site that is remote from the originating site.