Korea Institute of Science and Technology Information

About: Korea Institute of Science and Technology Information is a facility organization based out in Daejeon, South Korea. It is known for research contribution in the topics: Gravitational wave & LIGO. The organization has 1152 authors who have published 2319 publications receiving 93849 citations. The organization is also known as: Korea Institute of Science and Technology Information & KISTI.

Exploring the behaviors of electrode-driven Si quantum dot systems: from charge control to qubit operations.

Abstract: Charge stabilities and spin-based quantum bit (qubit) operations in Si double quantum dot (DQD) systems, whose confinement potentials are controlled with multiple gate electrodes, are theoretically studied with a multi-scale modeling approach that combines electronic structure simulations and the Thomas-Fermi method. Taking Si/SiGe heterostructures as the target of modeling, this work presents an in-depth discussion on the designs of electron reservoirs, electrostatic controls of quantum dot (QD) shapes and their corresponding charge confinements, and spin qubit manipulations. The effects of unintentional inaccuracies in DC control biases and geometric symmetries on the Rabi cycle of spin qubits are investigated to examine the robustness of logic operations. Solid connections to the latest experimental results are also established to validate the simulation method. As a rare modeling study that explores the full-stack functionality of Si DQD structures as quantum logic gate devices, this work delivers the knowledge of engineering details that are not uncovered by the latest experimental work and can serve as a basic but practical guideline for potential device designs.

Comparisons of three data storage models in parametric temporal databases

Abstract: The parametric temporal data model captures a real world entity in a single tuple, which reduces query language complexity. Such a data model, however, is difficult to be implemented on top of conventional databases because of its unfixed attribute sizes. XML is a matured technology and can be an elegant solution for such challenge. Representing data in XML trigger a question about storage efficiency. The goal of this work is to provide a straightforward answer to such a question. To this end, we compare three different storage models for the parametric temporal data model and show that XML is not worse than any other approaches. Furthermore, XML outperforms the other storages under certain conditions. Therefore, our simulation results provide a positive indication that the myth about XML is not true in the parametric temporal data model.

Synthesis and Properties of Thermally Stable Pressure Sensitive Adhesives for LCD Devices

Abstract: Waterborne acrylic pressure sensitive adhesives (PSAs) were synthesized by pre-emulsion addition method, characterized by FT-IR, 1H NMR spectra and differential scanning calorimetry (DSC), and evaluated their physical properties based on main and cohesive monomers. The waterborne acrylic PSA synthesized from 2-ethylhexyl acrylate (2-EHA) and butyl acrylate (BA) as main monomers, and 10 wt% of methyl methacrylate (MMA) as a cohesive monomer, showed excellent physical properties such as initial, moisture and heat resistant peel strengths, which are considered to be one of the most important properties to be applied for liquid crystalline display (LCD) devices.

Disruptive network applications and their impact on network neutrality

Abstract: Network Neutrality principle states that in order to preserve the openness of the Internet, the end users should have equal access to all the content on the Internet, and the Internet Service Providers (ISP) should be prohibited from discriminating or blocking the content from any of the application providers The Network Neutrality issue is important as it can have a considerable impact on the future Internet design principles and associated laws and policies While the supporters of Network Neutrality, including the users and content providers, argue that non-blocking and non-discrimination should be prohibited by law, the opponents, including the ISPs, claim that such rules can prove to be a disincentive for them to invest in the network upgrades In this paper, we provide a brief review of the Net Neutrality policies, focusing on the content provider discrimination In addition we discuss some of the latest disruptive network applications being used in the Internet, such as zero rating apps, Over-the-Top applications, etc, and their impact on the Network Neutrality