The synthesis of highly biocompatible polymers is important for modern biotechnologies and medicine. Here, we report a unique process based on a two-step high-pressure ramp (HPR) for the ultrafast and efficient bulk polymerization of 2-(hydroxyethyl)methacrylate (HEMA) at room temperature without photo- and thermal activation or addition of initiator. The HEMA monomers are first activated durin...

This paper addresses the problem of photo time-stamp detection and recognition, which is to determine the time a photo was taken. Since the time-stamp is exposed together with the scene, the main challenge comes from complex background and saturation of the time-stamp. An MAP (Maximum a posterior probability) based template matching method is proposed to detect and recognize the time-stamp simu...

A laser-driven photo-cathode electron gun capable of producing pulsed electron beams of 100 KeV with a duration of 35 ps was constructed as a continuing effort towards a high-brightness superconducting RF injector. Various species of photo-cathodes can be obtained either by ion implantation, CVD or ion enhanced deposition in the preparation chamber attached to the injector. A number of photo-ca...

Photo-alignment of liquid crystal displays (LCDs) with our linear photo-polymerisation (LPP)technology enables well defined boundary conditions such as high anchoring strength and stable, pretilt angles [1,2]. We report a photo-aligned four-domain vertical aligned nematic (VAN)-LCD. The display is compensated by a new VAN-compensator which is based on our LPPand liquid crystal polymer (LCP)tech...

We describe general web-based photo management solutions. We will see how thesesolutions provide users with search and browsing functionalities but little more than this. We will then describe systems that take photo management to a further step and provide users with additional information. The systems that we first describe are contextbased services that provide users with some information. T...

We examine the formation of giant elliptical galaxies using their globular cluster (GC) systems as probes of their evolutionary history. The bimodal distributions of GC metallicities in such galaxies are often cited as evidence for the formation of giant elliptical galaxies through mergers involving gas-rich spirals, with the metal-rich GCs forming during the merger process. We explore an alter...

We study the stability of the giant gravitons in the string theory background with NSNS B field. We consider the perturbation of giant gravitons formed by a probe D(8− p) brane in the background generated by D(p− 2)D(p) branes for 2 ≤ p ≤ 5. We use the quadratic approximation to the brane action to find the equations of motion. The vibration modes for ρ , φ and r are coupled, while those of xk’...

Following the increasingly popular trend of social interaction analysis in egocentric vision, this manuscript presents a comprehensive study for automatic social pattern characterization of a wearable photo-camera user, by relying on the visual analysis of egocentric photo-streams. The proposed framework consists of three major steps. The first step is to detect social interactions of the user ...