Abstract: A teaching and learning method and system (143, 145, 147, 148, 152) communicates exercises, including URL's of Web pages and questions related thereto. Each exercise is distributed by the teacher's computer (143), synchronously, or downloaded by a student computer (147), asynchronously. An indicator (129) used on the Web page of one computer can be viewed on the same Web page displayed on the other computers. Responses are processed by the response server (145) and by comparison and evaluation logic, and displayed contemporaneously on the teacher's computer, together with scoring information (105, 106) and with URL's (107) associated with links used on each student computer. Scores are awarded automatically, or arbitrarily by clicking on the screen (105) of the teacher's computer. A feedback signal (80) may appear on the student computer with each keystroke to indicate its correctness. Responses selected on the teacher's computer may viewed on the student computers or on a Class Display (171).

Abstract: A teaching and learning method and system (143, 145, 147, 148, 152) communicates exercises, including URL's of Web pages and questions related thereto. Each exercise is distributed by the teacher's computer (143), synchronously, or downloaded by a student computer (147), asynchronously. An indicator (129) used on the Web page of one computer can be viewed on the same Web page displayed on the other computers. Responses are processed by the response server (145) and by comparison and evaluation logic, and displayed contemporaneously on the teacher's computer, together with scoring information (105, 106) and with URL's (107) associated with links used on each student computer. Scores are awarded automatically, or arbitrarily by clicking on the screen (105) of the teacher's computer. A feedback signal (80) may appear on the student computer with each keystroke to indicate its correctness. Responses selected on the teacher's computer may viewed on the student computers or on a Class Display (171).

Abstract: In one general aspect, a system to control and monitor an electrical system includes a switchgear housing unit connected to the electrical system that includes a switchgear mechanism for controlling a connection within the electrical system and electronic controls for monitoring and controlling the switchgear mechanism, where the electronic controls are embedded within the switchgear housing unit to form a single, self-contained unit.

Abstract: A teaching and learning method and system (143, 145, 147, 148, 152) communicates exercises, including URL's of Web pages and questions related thereto. Each exercise is distributed by the teacher's computer (143), synchronously, or downloaded by a student computer (147), asynchronously. An indicator (129) used on the Web page of one computer can be viewed on the same Web page displayed on the other computers. Responses are processed by the response server (145) and by comparison and evaluation logic, and displayed contemporaneously on the teacher's computer, together with scoring information (105, 106) and with URL's (107) associated with links used on each student computer. Scores are awarded automatically, or arbitrarily by clicking on the screen (105) of the teacher's computer. A feedback signal (80) may appear on the student computer with each keystroke to indicate its correctness. Responses selected on the teacher's computer may viewed on the student computers or on a Class Display (171).

Abstract: An on-line teaching and learning system with rapid change-by-change or real time reinforcement signals for students and simultaneous monitoring by the teacher of the actual responses as well as their correctness is disclosed. The system may include at least one teacher computer, a plurality of student computers operably connected to the at least one teacher computer by a communications network. The system may be used in a classroom setting or in a distance-learning environment.

Abstract: A teaching and learning method and system (143, 145, 147, 148, 152) communicates exercises, including URL's of Web pages and questions related thereto. Each exercise is distributed by the teacher's computer (143), synchronously, or downloaded by a student computer (147), asynchronously. An indicator (129) used on the Web page of one computer can be viewed on the same Web page displayed on the other computers. Responses are processed by the response server (145) and by comparison and evaluation logic, and displayed contemporaneously on the teacher's computer, together with scoring information (105, 106) and with URL's (107) associated with links used on each student computer. Scores are awarded automatically, or arbitrarily by clicking on the screen (105) of the teacher's computer. A feedback signal (80) may appear on the student computer with each keystroke to indicate its correctness. Responses selected on the teacher's computer may viewed on the student computers or on a Class Display (171).

Abstract: An electronically controlled recloser for an electrical power distribution system is powered by at least one current transformer coupled to give an output in response to power line current. A voltage is stored on a large and a small capacitor in response to the line current and is compared with a reference voltage for determining the level of line current. When abnormally high levels of current appear on the line, it is opened for a short period of time. The energy stored on the capacitors is supplied to power the recloser during low line current conditions. At an end of a given time period following the opening of said line, the recloser recloses the line. If the abnormal condition persists, the recloser again opens and closes the line. When there is a surge of line current, the large capacitor is effectively removed from the circuit so that a response will not be delayed while the large capacitor charges; therefore, the charge on the small capacitor provide a quick start for immediate response.