Bi-based semiconductor materials have special layered structure and appropriate band gap, which endow them with excellent visible light response ability and stable photochemical characteristics.As a new type of environment-friendly photocatalyst, they have received extensive attention in the fields of environmental remediation and energy crisis res
In this paper, design and simulation of a deployment and release mechanism of a communication satellite antenna are described.Because of the simplicity and reliability of the system, a torsion spring is used to excite the antenna.Dynamic natio glide on eyeshadow stick simulation is performed by Adams Software and the appropriate spring and damper a
This case study describes a patient with a clinically ruptured distal biceps tendon, with ultrasound detecting an isolated rupture of the medial bundle of a bifid distal biceps tendon.A 45-year-old male presented to the accident and emergency department with a week-old history of a right elbow injury.The ultrasound scan demonstrated a hypoechoic, c
Morphologically defined species here of marine plankton often harbor a considerable level of cryptic diversity.Since many morphospecies show cosmopolitan distribution, an understanding of biogeographic and evolutionary processes at the level of genetic diversity requires global sampling.We use a database of 387 single-specimen sequences of the SSU