Analyzing dissipation effects on the non-classicality witnessing by a qubit via the entangled state representation

ABSTRACT

In this paper, we study detection of the state non-classicality for a quantum harmonic oscillator by a qubit in the presence of dissipation effects. We show that dissipation can enhance the effectiveness of the method in case of using the corrected form of the related nonclassicality witness. Such an improvement is attributed to the fact that dissipation leads to probing a surface, instead of a curve, of the complex plane for non-classicality condition on normally-ordered characteristic function.     

建筑材料见证取样送检工作存在的问题与改进对策

建筑材料质量是影响工程质量的主要因素之一,实施建筑材料见证取样送检工作是控制建筑材料质量的有效措施。论文分析了我国建筑材料见证取样送检工作中存在的问题,提出了改进此项工作的十大制度,从根本上保障建设工程中建筑材料质量。     

见证取样制度执行中存在的问题与改进对策

根据对当前我国建设工程质量检测见证取样制度执行现状的调查研究,分析了我国建设工程质量检测见证取样制度执行过程中存在的问题,提出了见证取样制度执行中如何确保试样真实性的对策建议,对提高建设工程质量起着重要作用。     

新闻(英文)

正China,Mexico Sign MOU of Standardization CooperationUnder the witness of Chinese President Xi Jinping and Mexican President Enrique Pe?a Nieto,AQSIQ Minister Zhi Shuping and Mexican Secretary of Economy Ildefonso Guajardo Villarreal signed the memorandum of understanding on standardization technical cooperation on November 13.     

Forensic Architecture

The urban destruction captured by black and white photos of London after the Blitz or bomb-damaged Berlin are emblematic of the desolation brought by modern warfare. Eyal Weizman , Paulo Tavares , Susan Schuppli and Situ Studio describe, though, how the built environment now represents more than a means of violation in conflict, as it has become an important source of evidence bearing witness to the event when international justice is sought. Copyright © 2010 John Wiley & Sons, Ltd.     

推行材料检验见证取样送检制的体会和建议

在水利基建工程中存在着一些因工程建筑材料不合格而留下的工程隐患 ,其原因之一是材料送检时没有实行见证取样制度 ,造成送检材料与实际施工用料质量不一致 ,为了防止这种质量事故 ,避免事后检测、处理造成的经济损失 ,应在水利工程建设中推行材料检验见证取样送检制     

Four heads are better than one: Combining face composites yields improvements in face likeness.

Four participants constructed face composites, of familiar and unfamiliar targets, using Pro-Fit, with reference images present or from memory. The "mean" of all 4 composites, created by morphing (4-morph) was rated as a better likeness than individual composites on average and was as good as the best individual likeness. When participants attempted to identify targets from line-ups, 4-morphs again performed as well as the best individual composite. In a second experiment, participants familiar with target women attempted to identify composites, and the trend showed better recognition from multiple composites, whether combined or shown together. In a line-up task with unfamiliar participants, 4-morphs produced most correct choices and fewest false positives from target-absent or target-present arrays. These results have practical implications for the way evidence from different witnesses is used in police investigations. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The psychologist as expert witness.

"Is psychology sufficiently established at this time as a science to qualify its practitioners as expert witnesses in civil and criminal trials in federal and state courts… ? If so, does a need exist for their services in this capacity?… The purpose of this brief… [article] is to survey the domain, defining terms, show how the psychologist might be qualified in an actual trial, point out methods of obtaining his testimony, and suggest legislative action along broad lines." The major sections are: Definitions, Qualification as a Witness, Methods of Taking Testimony, and Suggested Legislation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The application of optical fibres as witness devices for the detection of plastic strain and cracking

Low cost optical fibres have recently become readily available for telecommunications purposes. Silica fibres are characterised by high elastic strains to failure. The feasibility of using these fibres for structural integrity monitoring particularly for offshore structures is investigated. The basis of the technique is that a fibre may be bonded to a critical part of a structure and provides an optical path which will be broken if the fibre fails due to plastic strain or crack opening in the critical area.
Groups of fibres which have been given predetermined fracture strains by surface etching were encapsulated in special packs. These packs were bonded to steel and concrete tensile specimens. Strain transfer occurred successfully between the specimens and individual fibres. The distribution of strain to fibre fracture appeared to be uniform along the fibre. The use of several fibres with a range of fracture strains caused fibres to break progressively with increasing strain. For applications to offshore structures it has been found possible to use water-repellent adhesives which can be applied and cured in sea water and suffer no deterioration.
The advantages of this system include versatility, relatively low cost, adaptability to continuous monitoring and the possibility of being fitted retrospectively and refitted after repair operations.     

A Psychologist as a Legal Witness.

This comment discusses a court case--Hidden vs. The Mutual Life Insurance Company of New York--which involves the qualifications of a psychologist as an expert witness. The testimony of a psychologist, offered by the insured to prove that he was mentally ill, had been excluded by the Trial Judge on the ground that, not being a medical man, the psychologist was not a qualified expert; however, the Court of Appeals on this ground alone reversed the decision of the lower court for the defendant, arguing that the expert was qualified in his field by academic training and by experience. The author notes that this case helps establish the position of psychologists in our society. (PsycINFO Database Record (c) 2010 APA, all rights reserved)