Abstract: A swing arm suspension for suspending a rear drive wheel in a three-wheeled electric vehicle has an adjustable arm which allows the tension on the drive belt to be easily adjusted for installing or removing the drive belt or adjusting tension for operation.

Abstract: A swing arm suspension for suspending a rear drive wheel in a three-wheeled electric vehicle has an adjustable arm which allows the tension on the drive belt to be easily adjusted for installing or removing the drive belt or adjusting tension for operation.

Abstract: Disclosed herein is a computer implemented method and system for assisting students in technology utilization to optimize the students' academic achievements based on statistical relationships between the students' academic achievements and the students' technology utilization patterns. A software agent is provided for capturing the students' technology utilization patterns. The software agent uploads the captured technology utilization patterns to an analysis server via a network. The analysis server statistically correlates the uploaded technology utilization patterns with the students' academic achievements uploaded to the analysis server. The analysis server creates benchmark technology utilization patterns using the technology utilization patterns of one or more of the students selected based on predetermined criteria. The analysis server statistically correlates the created benchmark technology utilization patterns with the captured technology utilization patterns of the students.

Abstract: The inventive concept disclosed herein provides an award based system for users to create and upload educational material on the award based learning website, and for other users to download and preview, review, edit, critique and comment on the educational material. The method includes a server with databases to store the users, lesson plans, comments on the lesson plans, award data, items that a user can redeem against their accrued points, etc. Users can log into the system from any computer that has internet access, a web browser, and proper input and display devices. Users receive award points for performing certain activities related to the educational material on the website. These activities include obtaining unique downloads, uploading new lesson plans, leaving feedback on lesson plans, logging into the system, etc. Award points accrued by a user can be redeemed for an item of value. Each item has an assigned award point value.

Abstract: A method of measuring mass flow rates of liquid phases in a multiphase slug flow containing at least two liquid phases includes (i) passing a flow through a tube; (ii) detecting commencement of passage of a slug in the flow past a first location in the tube; (iii) measuring mass or volume fractions of the liquid phases by transmission of energy through the flow at the first location; (iv) detecting ending of the passage of the slug at the first location; and (v) determining mass flow rate of the liquid phases through the tube from (a) measuring the total mass or volume of liquid flowing through the tube and (b) measuring mass or flow fractions, only between detection of the commencement and the ending of passage of respective slugs in the flow, i.e., only while a slug is present at the measuring point.

Abstract: A display device is disclosed which comprisees a plurality of positive lenses disposed in a concavely curved lens array as seen by an observer and a plurality of substantially concavely curved pictures respectively associated with the lenses. Each of the pictures is disposed behind the respective lens and is located substantially at or within the focal length of the respective lens. The pictures each comprise a plurality of picture elements such that, when the lens array is viewed from different angles by an observer, the observer is able to perceive a composite image formed from magnified images of the picture elements of different ones of the pictures.

Abstract: A method of analysing coal or coke wherein the concentration of ash or mineral matter in coal or coke is determined from (i) the result of a measurement of transmission or scatter of X-rays or .gamma.-rays of a first energy chosen such that there is significant difference in absorption of radiation per unit weight in coal matter and mineral matter excluding iron, combined with (ii) the result of at least one further measurement of transmission or scatter of X-rays or .gamma.-rays at different energy/energies so chosen that there is significant difference in absorption of radiation per unit weight of coal matter and mineral matter and that the relative absorption per unit weights by said coal matter and said mineral matter at any one energy is significantly different from the relative absorption at each other energy including said first energy, and/or (iii) the result of a measurement of iron concentration by neutron capture .gamma.-ray techniques.