Abstract: Embodiments related to the setting of an operating point of an amplifier are described and depicted.

Abstract: A concrete bolt includes a hexagonal head part and a bolt body extended from the head part. A bottom end of the bolt body is a bevel, a surface of the bolt body has high-tooth and low-tooth threads helically extended and arranged alternately. A tooth end of the high-tooth thread is tilted outward, an end surface facing toward the head part is concaved, the low-tooth thread is roughly in a trapezoidal shape and a high-tooth thread adjacent to the bottom end has petal-shaped teeth arranged alternately. When locking into concrete, the bolt is operated more easily to save labor work by cutting with the high-tooth threads and guiding and balancing functions with the low-tooth threads. Additionally, the concrete cut is coagulated after locking, thus the bolt is more robust by having a high tensile strength and easily dismantled for repetitive use, thereby improving a practical value of the concrete bolt.

Abstract: Systems and methods are described for bonding asynchronous transfer mode permanent virtual circuits using a multi-link segmentation and reassembly sublayer. A method includes: transforming a plurality of streams of asynchronous transfer mode cells into a stream of bonded asynchronous transfer mode cells, the plurality of streams of asynchronous transfer mode cells provided by a first plurality of permanent virtual circuits; demultiplexing the stream of bonded asynchronous transfer mode cells into a plurality of streams of inverse multiplexed bonded asynchronous transfer mode cells; and transmitting the plurality of streams of inverse multiplexed bonded asynchronous transfer mode cells to a remote location via a second plurality of permanent virtual circuits. The transmitted plurality of streams of inverse multiplexed bonded asynchronous transfer mode cells can be multiplexed and transformed into a plurality of multiplexed streams of asynchronous transfer mode cells after transmitting.