Acoustic Directional Couplers permit separation of forward and reverse sound pressure waves. This separation opens the way to traceable precision acoustic reflection measurements. In order to span the audio frequency range, multiple couplers will be required, as each operates over a frequency range of slightly more than one octave. To reach 20kHz or above requires vary small, mechanically preci...

We present a computational method to generate a trompe l’œil on a paper, a 2D image depicting a virtual 3D model in such a way that the model appears to be a real 3D entity when a person views the printed image from specific viewpoint. This method is similar to augmented reality methods which show a virtual 3D model on top of a real world image captured by a camera considering photometric match...

We illustrate Archimedes’ method using models produced with 3D printers. This approach allowed us to create physical proofs of results known to Archimedes and to illustrate ideas of a mathematician who is known both for his mechanical inventions as well as his breakthroughs in geometry and calculus. We use technology from the 21st century to trace intellectual achievements from the 3rd century ...

Purpose. To assess the effect of three-dimensional (3D) printed personalized moisture chamber spectacles (PMCS) on the periocular humidity. Methods. Facial computed tomography (CT) scanning was conducted on 10 normal subjects. PMCS was designed based on volume rendered CT images and produced using a 3D printer. Periocular humidity of PMCS and commercially available uniformed moisture chamber sp...

The recent development of 3D printing techniques enables novel applications in customized food fabrication. Based on a tailor-made 3D food printer, we present a novel personalized food printing framework driven by portrait images. Unlike common 3D printers equipped with materials such as ABS, Nylon and SLA, our printer utilizes edible materials such as maltose, chocolate syrup, jam to print cus...

1 1. Command name and code: 2 RCTE 7 2a 2. Command meanings: 3 IAC WILL RCTE 3a The sender of this command REQUESTS or AGREES to use the RCTE option, and will send instructions for controlling the other side’s terminal printer. 3a1 IAC WON’T RCTE 3b The sender of this option REFUSES to send instructions for controlling the other side’s terminal printer. 3b1 IAC DO RCTE 3c The sender REQUEST or ...

Neurons come in a wide variety of shapes and sizes. In a quest to understand this neuronal diversity, researchers have three-dimensionally traced tens of thousands of neurons; many of these tracings are freely available through online repositories like NeuroMorpho.Org and ModelDB. Tracings can be visualized on the computer screen, used for statistical analysis of the properties of different cel...

autologous reconstruction as compared with tissue expander reconstruction (4.5 percent versus 2.1 percent; p<0.001). There were significantly more debridements performed in cases where ICG was used (5.6 percent versus 3.2 percent; p<0.001). Use of ICG added a mean charge of $9,080 per reconstruction ($79,242 vs. $70,162; p<0.001); however, it also resulted in a decreased LOS (2.37 days versus 2...

Three-dimensional (3D) printing offers potential to fabricate high-throughput and low-cost fabrication of microfluidic devices as a promising alternative to traditional techniques which enables efficient design iterations in the development stage. In this study, we demonstrate a single-step fabrication of a 3D transparent microfluidic chip using two alternative techniques: a stereolithography-b...

Acoustics emanated from the additive manufacturing systems, such as 3D-printers, carry process information that can be used to breach the confidentiality of the system. Moreover, this is an example of a physical-to-cyber domain attack, where information gathered from the physical domain, such as acoustic side-channel of a 3D-printer, can be used to reveal information about the cyber domain (suc...