Nowadays, the energy efficiency is the most important aspect to pay attention.Ship resistances are one of the most important factors in socksmith santa cruz order to see the energy efficiency aspect in the marine transportation.Researchers have done a lot of researches to reduce resistance on ship.One of the method that can reduce the resistance on
In this work, a transmission-type labyrinth structure (LS) is proposed to construct subwavelength acoustic functional metasurfaces, through which various desirable acoustic wavefront manipulation can be achieved in a broadband from 2,700 Hz to 3,900 Hz.By utilizing the excellent guiding property of LS, fp9550bk an invisibility cloak is designed to
Smoking rates in the UK are at an all-time low but this masks considerable inequalities; prevalence amongst adults who are homeless remains four times higher than the national average.The objective of this trial was to assess the feasibility of supplying free e-cigarette starter kits to smokers accessing homeless centres and to estimate parameters
Sinus venosus atrial septal defects (SVASDs), concurrent with partial anomalous pulmonary venous connections (PAPVCs), are a rare congenital heart disease in dogs.Surgical correction is essential when clinical signs or significant hemodynamic changes are present.We aimed to report on the successful surgical correction of an SVASD with PAPVCs, using
To address the privacy protection issues of digital signature users and prevent the misuse of complete anonymity by malicious users, a traceable ring signature scheme based on the domestic cryptographic algorithm SM9 was proposed.The SM9 algorithm was an identity-based cryptographic algorithm independently developed by China, which was characterize