Abstract: A system and method for installing a ground-based advertising unit is provided. The ground-based advertising unit comprises an aperture for accepting a fastener. A hole is drilled into a surface. An adhesive is applied to the hole. An anchor which is configured to mate with the fastener is inserted into the hole. The adhesive is cured. The fastener is inserted through the aperture. The fastener is mated with the anchor.

Abstract: A service includes an associated service request throttling system. The throttling system constrains the rate at which service requests are fulfilled by the service, and also provides throttling information to the service. The throttling system controls service throughput by implementing a throttling bucket. The throttling bucket has an associated bucket level which indicates, to the service, an amount of service requests that can be satisfied before throughput limitations are imposed by the throttling system. The bucket level may be modified in response to service requests, service request characteristics, or environmental parameters. In some examples, operational parameters of the throttling system may be configured by users of the service to constrain data exfiltration. The bucket level itself may be used by the service to expand or constrain access privileges granted to particular users.

Abstract: A request a request to perform a cryptographic operation is received, the request including a first identifier assigned to a key group, the key group comprising a plurality of second identifiers, with the plurality of second identifiers corresponding to a plurality of cryptographic keys. A second identifier is determined, according to a distribution scheme, from the plurality of second identifiers, and the cryptographic operation is performed using a cryptographic key of the plurality of cryptographic keys that corresponds to the second identifier that was determined.

Abstract: A method for installing an advertising unit on a ground surface includes cleaning an installation area located at the ground surface, applying an adhesive at the installation area, depositing the advertising unit at the installation area atop the adhesive, and curing the adhesive. In some embodiments, the advertising unit comprises a back unit having a track which accommodates a cover in a sliding fashion. In some embodiments, the installation area may be excavated to render an upper surface of the advertising unit flush with the surface of the ground when deposited.

Abstract: An advertising unit includes a transparent or translucent cover. A back unit includes a base as well as first and second side ridges which extend from, and along, side edges of the base. A track defined by the first and second side ridges is configured to receive the cover in a sliding arrangement. The space between said cover and said back unit defines a cavity configured to receive one or more advertisements.

Abstract: An apparatus for ground-based advertising is provided. A back unit includes a floor defining a perimeter, ridges extending from the floor and about the perimeter to define a depression, and a cover configured to be slid into the depression and supported by the back and side ridges. A number of holes are located in the back unit to fasten the back unit to the ground. Another hole is located at the edge of the back unit and cover positioned to be aligned when the cover is installed on the back unit. A cavity is defined by the back unit and the cover into which advertisements and parking space numbers are placed.

Abstract: A device for displaying an advertisement in a parking lot which has a number of parking spaces includes a back unit configured for placement at a predetermined position associated with one of the respective parking spaces in said parking lot. A cover is mounted to said back unit such that said back unit and said cover form an enclosed compartment. A slot is positioned within said cover is configured to receive an advertisement for deposit within said enclosed compartment. A material capable of undergoing phosphorescence is positioned within said enclosed compartment to illuminate deposited advertisements.

Abstract: Methods and systems to manage refrigerant levels in a chiller system are provided. An evaporator of the chiller system may be configured to have a spill over port allowing oil containing refrigerant to spill over through the spill over port. The spill over port may be positioned at a place that corresponds to a desired refrigerant level in the evaporator. The spill over refrigerant may be directed into a heat exchanger that is configured to substantially vaporize refrigerant of the spill over refrigerant to a slightly superheat temperature. A method of maintaining a proper refrigerant level in the evaporator may include regulating a refrigerant flow to the evaporator so that the vaporized refrigerant of the spill over refrigerant is maintained at the slightly superheat temperature.

Abstract: A system and method for installing a ground-based advertising unit is provided. The ground-based advertising unit comprises an aperture for accepting a fastener. A hole is drilled into a surface. An adhesive is applied to the hole. An anchor which is configured to mate with the fastener is inserted into the hole. The adhesive is cured. The fastener is inserted through the aperture. The fastener is mated with the anchor.

Abstract: A device for displaying an advertisement in a parking lot which has a number of parking spaces includes a back unit configured for placement at a predetermined position associated with one of the respective parking spaces in said parking lot. A cover is mounted to said back unit such that said back unit and said cover form an enclosed compartment. A slot is positioned within said cover is configured to receive an advertisement for deposit within said enclosed compartment. A material capable of undergoing phosphorescence is positioned within said enclosed compartment to illuminate deposited advertisements.

Abstract: The invention discloses devices for providing continuous advertising content within a plurality of dedicated parking lot advertising infrastructure units called “capsules.” Advertisements are generally placed in a waterproof space defined by a back unit and a clear, hard-plastic cover. A display unit or a physical advertisement may be placed in the space. Lighting and Internet connectivity may be provided to improve the performance and range of parking lot advertising capsules.

Abstract: An apparatus for ground-based advertising is provided. A back unit includes a floor defining a perimeter, ridges extending from the floor and about the perimeter to define a depression, and a cover configured to be slid into the depression and supported by the back and side ridges. A number of holes are located in the back unit to fasten the back unit to the ground. Another hole is located at the edge of the back unit and cover positioned to be aligned when the cover is installed on the back unit. A cavity is defined by the back unit and the cover into which advertisements and parking space numbers are placed.

Abstract: A device for displaying advertising images in a parking lot having a plurality of parking spaces. A back unit is configured for placement at a predetermined position associated with one of the parking spaces in said parking lot. A cover is mounted to said back unit such that said back unit and said cover form an enclosed compartment. An electronic display is positioned within said enclosed compartment and is configured to display the advertising images. A controller is in electronic communication with the electronic display. A battery is electrically connected to said electronic display.

Abstract: A device for displaying advertising images in a parking lot having a plurality of parking spaces. A back unit is configured for placement at a predetermined position associated with one of the parking spaces in said parking lot. A cover is mounted to said back unit such that said back unit and said cover form an enclosed compartment. An electronic display is positioned within said enclosed compartment and is configured to display the advertising images. A controller is in electronic communication with the electronic display. A battery is electrically connected to said electronic display.

Abstract: Electronically signed data is persistently stored in data storage. After the passage of time, the data may be accessed and presented to a trusted entity for verification of the data. The trusted entity may have access to secret information used to sign the data. The trusted entity may use the secret information to verify an electronic signature of the data. One or more actions may be taken based at least in part on a response provided by the verification system.

Abstract: Electronically signed data is persistently stored in data storage. After the passage of time, the data may be accessed and presented to a trusted entity for verification of the data. The trusted entity may have access to secret information used to sign the data. The trusted entity may use the secret information to verify an electronic signature of the data. One or more actions may be taken based at least in part on a response provided by the verification system.

Abstract: A suction duct is disposed within a shell and tube heat exchanger. The suction duct is located relatively high and above the tube bundle so as to not entrain liquid or droplets that may be splashing and spraying upward. The suction duct is configured with an area schedule in fluid communication with a flow path inside the suction duct. The flow path is in fluid communication with an outlet of the shell. This is advantageous relative to traditional top of the shell outlets which generally have higher vertical footprints. The area schedule of the suction duct can facilitate and/or maintain relatively smooth vapor flow within the shell. The area schedule can achieve vapor flows that have some uniformity along the length of the shell, which can manage and/or avoid localized vapor flow and/or local currents, such as where high velocity may be present and where entrainment can result.

Abstract: A request a request to perform a cryptographic operation is received, the request including a first identifier assigned to a key group, the key group comprising a plurality of second identifiers, with the plurality of second identifiers corresponding to a plurality of cryptographic keys. A second identifier is determined, according to a distribution scheme, from the plurality of second identifiers, and the cryptographic operation is performed using a cryptographic key of the plurality of cryptographic keys that corresponds to the second identifier that was determined.

Abstract: A request a request to perform a cryptographic operation is received, the request including a first identifier assigned to a key group, the key group comprising a plurality of second identifiers, with the plurality of second identifiers corresponding to a plurality of cryptographic keys. A second identifier is determined, according to a distribution scheme, from the plurality of second identifiers, and the cryptographic operation is performed using a cryptographic key of the plurality of cryptographic keys that corresponds to the second identifier that was determined.

Abstract: Techniques are disclosed for a device that presents a mass storage device to a computing environment, and which stores data written to the device by the computer in a network storage service. The device also presents files stored in the network storage service to the computer as though those files were stored on a mass storage device.