Abstract: A system and method for presenting an online study guide and testing program is presented herein. In particular, the system and method includes a plurality of test questions stored within a database or question bank and a plurality of testing materials corresponding to subject areas, topics, and specific categories. Each of the test questions are coded or otherwise include a study code associated therewith, the study code representing a particular subject area, category or sub-category. Similarly, the study materials are also coded to represent a subject area, category, or sub-category. Accordingly, once a student has completed a test or assignment, the system and method will automatically detect the student's weak areas via wrong answered questions and provide the study code. The student can then obtain study materials relating to that study code in order to advance his or her knowledge in those weak areas.

Abstract: A methodology that provides for control of lot release control in a production environment. The method provides a start-order release system to achieve output maximization and cycle time minimization. This is accomplished using a lot release method that allows for multiple products that have different due dates and different process flows. Linear programming techniques are used to provide optimum start and customer delivery dates and maintain high resource utilization.

Abstract: A tension adjusting device for a packing machine using plastic film includes a shaft with a plastic film roll mounted thereto which is pressed by a press member. An axle extends centrally from the press member and is connected to a plate which extends radially and outwardly from a first rotatable rod. The shaft has an end member with which a belt is engaged which has a first end fixedly connected to a first fixed position. A first gear is fixedly connected to the first rotatable rod and a second rotatable rod is located in parallel with the first rotatable rod with a second gear connected to the second rotatable rod and engaged with the first gear. A third gear is connected to the second rotatable rod and has a chain engaged therewith which has one end thereof fixedly connected to a second fixed position and the other end thereof connected to a second end of the belt via a spring so that when the third gear is rotated, the belt is loosened or tightened.

Abstract: Two spaced guiding plates for a wrapping device each have a first inclined face formed thereon and each of which faces the other, therefore, a V-shaped space is defined therebetween. An adjusting plate is securely mounted on a side of the wrapping device and has a second inclined face formed thereon. The first inclined face and the second inclined face are in line with each other, such that edges of a sheet of material for wrapping a article are able to be guided by the first inclined face and the second inclined face. With the help of the guiding plates and the adjusting plate, the present invention is able to precisely guide edges of the sheet of material and to efficiently wrap the article.