Abstract: A system includes a motor-driven component, a motor configured to operate the motor-driven component, and a motor drive circuit configured to power the motor. The motor drive circuit includes at least one complementary stage, where each stage includes a first transistor and a second transistor. During operation of the motor drive circuit, the first transistor is switched on when the second transistor is switched off. The system includes a controller communicatively coupled to the motor drive circuit. A load condition associated with the component is monitored. Based on the load condition, the controller determines whether the component is operating at a light load condition. If the component is operating at the light load condition, a switching frequency of each of stages is changed from a first switching frequency to a second switching frequency, which is less than the first switching frequency.

Abstract: A system includes a motor-driven component, a motor configured to operate the motor-driven component, and a motor drive circuit configured to power the motor. The motor drive circuit includes at least one complementary stage, where each stage includes a first transistor and a second transistor. During operation of the motor drive circuit, the first transistor is switched on when the second transistor is switched off. The system includes a controller communicatively coupled to the motor drive circuit. A load condition associated with the component is monitored. Based on the load condition, the controller determines whether the component is operating at a light load condition. If the component is operating at the light load condition, a switching frequency of each of stages is changed from a first switching frequency to a second switching frequency, which is less than the first switching frequency.

Abstract: A system includes a motor-driven component, a motor configured to operate the motor-driven component, and a motor drive circuit configured to power the motor. The motor drive circuit includes at least one complementary stage, where each stage includes a first transistor and a second transistor. During operation of the motor drive circuit, the first transistor is switched on when the second transistor is switched off. The system includes a controller communicatively coupled to the motor drive circuit. A load condition associated with the component is monitored. Based on the load condition, the controller determines whether the component is operating at a light load condition. If the component is operating at the light load condition, a switching frequency of each of stages is changed from a first switching frequency to a second switching frequency, which is less than the first switching frequency.

Abstract: A system includes a motor-driven component, a motor configured to operate the motor-driven component, and a motor drive circuit configured to power the motor. The motor drive circuit includes at least one complementary stage, where each stage includes a first transistor and a second transistor. During operation of the motor drive circuit, the first transistor is switched on when the second transistor is switched off. The system includes a controller communicatively coupled to the motor drive circuit. A load condition associated with the component is monitored. Based on the load condition, the controller determines whether the component is operating at a light load condition. If the component is operating at the light load condition, a switching frequency of each of stages is changed from a first switching frequency to a second switching frequency, which is less than the first switching frequency.

Abstract: The present invention refers to the field of cancer and, in particular, to an in vitro method for the diagnosis of lung cancer by determining in a biological sample, taken from a subject, the methylation level of particular genes. It further relates to biomarkers and kits useful for said method.

Abstract: The present invention is directed to an apparatus and method for preserving cadavers. The apparatus is preferably comprised of a container that receives a cadaver, which cadaver has first been placed into a multi-layered plastic bag of the type used in the vacuum-packing industry. The container has the ability to be sealed in a substantially air-tight manner. Located on or coupled to the container is a gas evacuation apparatus, which evacuates substantially all of the gases within the container, the bag, and the cadaver. The cadaver is then sealed using a sealing apparatus located within the cadaver. The cadaver, in the sealed bag, may then be removed.

Abstract: A pocket infinite kaleidoscope has two opposed cylindrical cases each one with an internal mirror. Multiple circular colored flexible intertwined springs are adhered to the respective mirrors and a peephole is formed through one of the mirrors. The kaleidoscope is handled by an observer by displacing the cases by stretching the springs and looking through the peephole to create an amusing virtual image.

Abstract: A kaleidoscope housing is in the form of an irregular polyhedron having four of its sides providing irregular polygonal reflecting mirrors joined along respective edges of the polyhedron at specified dihedral angles and its remaining sides formed as triangular viewing windows. The windows produce three-dimensional geometric images in the interior space of the housing when viewed through any window, the images having triaxial symmetry and repeating to infinity.