Abstract: A method for controlling a fan speed is disclosed. The fan cools a CPU in a computer. The method includes defining a CPU-max-temp value of a CPU, such that the first fan speed is linearly enhanced with the increase of a real temperature value of the CPU, when the real temperature value of the CPU is lower than the CPU-max-temp value, and changing the CPU-max-temp value to a higher CPU-max-temp value in a basic input output system. A second fan speed is linearly enhanced with an increase of the real temperature value, when the real temperature value is lower than the higher CPU-max-temp value. The second fan speed is less than the first fan speed at the real temperature value.

Abstract: A heat dissipation device includes a heat sink (10) and a fan (30). The heat sink includes a plurality of fins (15), and a guiding portion (184) is formed in the fins. The fan is secured to the heat sink. An airflow (F) is generated by the fan for flowing through the heat sink. When the airflow meets with the guiding portion, the airflow is deflected. The deflected airflow is guided to flow across heat-generating elements.

Abstract: An apparatus and method is disclosed for producing arbitrary optical and electrical waveforms. The apparatus includes a means for accepting or generating a comb-like optical spectrum, and an optical pulse shaper. The optical pulse shaper includes a spatial dispersion means, and a spatial modulating means having the capability to substantially independently modulate a characteristic of each of a pair of optical spectral lines. The apparatus and method may be used to generate a variety of waveform types, and convert between waveform types such as RZ and NRZ.

Abstract: A heat sink includes a dissipating heat element and a thermal conducting element securely mounted on the dissipating heat element. The dissipating heat element has a base and a plurality of fins extending from the base. The base defines a cavity therein. The thermal conducting element has an inserting portion inserting in the cavity of the dissipating heat element, and a contacting portion for being in contact with an electronic device to thereby conduct heat generated by the electronic device to the dissipating heat element. A cross-sectional area of the contacting portion of the thermal conducting element is larger than that of the inserting portion of the thermal conducting element.

Abstract: A thermal device for cooling a heat generating source is provided, including a first portion and a second portion which is formed from the first portion, the area of the bottom of the second portion is smaller than the area of the bottom of the first portion, and the area of the bottom of the second portion accords with a contact surface area of the heat generating source.

Abstract: A heat dissipation device includes a heat sink (10) and a fan (30). The heat sink includes a plurality of fins (15), and a guiding portion (184) is formed in the fins. The fan is secured to the heat sink. An airflow (F) is generated by the fan for flowing through the heat sink. When the airflow meets with the guiding portion, the airflow is deflected. The deflected airflow is guided to flow across heat-generating elements.

Abstract: A mechanical stabilizer-tuned damper is attachable to the first upper magnet assembly of a high field open magnet, which magnet includes a first upper magnet assembly, a lower second magnet assembly and at least one non-magnetizable support beam therebetween. The mechanical stabilizer-tuned damper reduces the dynamic response of the magnet. A connecting device is provided which consists of a threaded rod mounted to an attachment bracket through a linear bearing and vibration mount. A series of non-magnetic and extremely low conductivity plates of various weights are attachable to the rod to change the mass and the tuning frequency of the damper. The location and size of the mechanical stabilizer-tuned damper are determined to balance the frequency of the field oscillation and physical room. The direction of orientation depends upon the direction of motion to be dampened or controlled.

Abstract: A secure and stable mounting system for High Field Open (HFO) magnets. A stainless steel mounting plate is secured to the RF screen room floor and the HFO magnet is secured to the mounting plate. Metal angle members are welded around the perimeter edges of the steel plate, and brass wool is inserted between the angle members and the copper sheeting on the floor of the screen room. The invention minimizes magnet motion and thus reduces the risk of image phase ghosting. The invention also provides RF screen room integrity.