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edHelper.com, which produces printable worksheets and educational resources to teachers and homeschooling parents, said it would be publishing free daily workbooks for students who are out of school. The workbooks include math and writing exercises for elementary students. The company...
Soundtrap for Education isextending its free trialfor any school that signs up for this semester. Free access is available to support distance learning initiatives for 120 days and up to 500 seats per school. Teachers and students can create, communicate, and collaborate to explore creative sou...
A method, system and computer readable media temporarily display closed captions. An equipment device (e.g., set top box, smart TV or other display device) receives a source signal that includes at least a video signal and a plurality of closed caption entries. Each closed caption entry is ...
REFERENCE SIGNS 101—ion exchange membrane/cation exchange membrane; 102—anode; 103—cathode; 10a—first chamber; 10b—second chamber; 20—etching liquid storage tank; 201—liquid inlet; 202—liquid outlet; 30—electrodialysis means; 40—waste liquid tank. DETAILED DESCRIPTION OF THE DISCLOSURE The...
The container (1) is of a shallow cylindrical shape with an outer thread (11) at its upper edge for being joined to a lid (3) provided with a complementary thread. A flat ring (2) is clipped to the edge of the container (1) in order to cover the top and leaving only a small ...
Independent claims are included for a system for lowering groundwater; a flushing depth lance; a deep pump lance; a nozzle spray filter lance; and a closed conveying and pressure-increasing apparatus.Wils, Werner
In a process to temporarily store pre-cooked food in fresh condition, the food is held in a container with a lower section and an air-tight cover with a back-flow prevention valve. A small quantity of water is held in a secondary open container within the lower section. On heating e.g...
For the vacuum removal, the air outlet entries (5) of the suction fans (4) are temporarily closed, while the fan motors continue to run. Sealing is achieved using pivoted flaps, positioned in the entry, so that their turning axis extends at right angles to the direction of flow....