Hewlett-Packard

About: Hewlett-Packard is a company organization based out in Palo Alto, California, United States. It is known for research contribution in the topics: Signal & Layer (electronics). The organization has 34663 authors who have published 59808 publications receiving 1467218 citations. The organization is also known as: Hewlett Packard & Hewlett-Packard Company.

Towards accountable management of identity and privacy: sticky policies and enforceable tracing services

Abstract: Digital identities and profiles are precious assets. On one hand they enable users to engage in transactions and interactions on the Internet. On the other hand, abuses and leakages of this information could violate the privacy of their owners, sometimes with serious consequences. Nowadays most of the people have limited understanding of security and privacy policies when applied to their confidential information and little control over the destiny of this information since it has been disclosed to third parties. In most cases this is a matter of trust. This document describes an innovative approach and related mechanisms to enforce users' privacy by putting users in control and making organizations more accountable. As part of our ongoing research activity, we introduce a technical solution based on sticky policies and tracing services that leverages identity-based encryption (IBE) and TCPA technologies. Work is in progress to build a full working prototype and deploy it in a real-life environment.

Status as a Valued Resource.

Abstract: The striving for status has long been recognized in sociology and economics. Extensive theoretical arguments and empirical evidence propose that people view status as a sign of competence and pursue it as a means to achieve power and resources. A small literature, however, based on arguments from biology and evolutionary psychology, proposes that people pursue status as an (emotional) goal in itself, independent of competence and expressed by culturally flexible symbols. We present results of an experiment with human subjects from five different national cultures. We found that the subjects valued status independently of any monetary consequence and were willing to trade off some material gain to obtain it. Although this result was stable across the five cultures, the intensity of the striving for status and the desirability of a public display of status varied strongly: the intensity of the status motive corresponded to Hofstede's power distance index of the respective culture. Finally, the amount of sta...

Quantum repeater with encoding

Abstract: We propose an approach to implement quantum repeaters for long-distance quantum communication. Our protocol generates a backbone of encoded Bell pairs and uses the procedure of classical error correction during simultaneous entanglement connection. We illustrate that the repeater protocol with simple Calderbank-Shor-Steane encoding can significantly extend the communication distance, while still maintaining a fast key generation rate.

Patient monitoring system

Abstract: A method is described for attaching a monitoring device to a patient comprising providing a fastener having a frame defining an opening adapted to receive a reel in a button hole fashion; inserting the reel behind a portion of the patient's clothing; positioning the frame on the opposite side of the portion of the patient's clothing relative to the reel and inserting the reel into the opening trapping the portion of material between the reel and the frame; and attaching the monitoring device to the fastener by a tether.

Mechanism of Na‐Ion Storage in Hard Carbon Anodes Revealed by Heteroatom Doping

Abstract: Hard carbon is the leading candidate anode for commercialization of Na-ion batteries Hard carbon has a unique local atomic structure, which is composed of nanodomains of layered rumpled sheets that have short-range local order resembling graphene within each layer, but complete disorder along the c-axis between layers A primary challenge holding back the development of Na-ion batteries is that a complete understanding of the structure–capacity correlations of Na-ion storage in hard carbon has remained elusive This article presents two key discoveries: first, the characteristics of hard carbons structure can be modified systematically by heteroatom doping, and second, that these structural changes greatly affect Na-ion storage properties, which reveals the mechanisms for Na storage in hard carbon Specifically, via P or S doping, the interlayer spacing is dilated, which extends the low-voltage plateau capacity, while increasing the defect concentrations with P or B doping leads to higher sloping sodiation capacity The combined experimental studies and first principles calculations reveal that it is the Na-ion-defect binding that corresponds to the sloping capacity, while the Na intercalation between graphenic layers causes the low-potential plateau capacity The understanding suggests a new design principle of hard carbon anode: more reversibly binding defects and dilated turbostratic domains, given that the specific surface area is maintained low