Advanced search in
Research products
arrow_drop_down
Searching FieldsTerms
Subject
arrow_drop_down
includes
arrow_drop_down
Include:
45 Research products, page 1 of 5

  • Open Access
  • CN
  • MY
  • English

10
arrow_drop_down
Relevance
arrow_drop_down
  • Publication . Conference object . Preprint . 2008
    Open Access English
    Authors: 
    Xuan Cai;

    The Change-Making Problem is to represent a given value with the fewest coins under a given coin system. As a variation of the knapsack problem, it is known to be NP-hard. Nevertheless, in most real money systems, the greedy algorithm yields optimal solutions. In this p...

  • Open Access English
    Authors: 
    Fang, Ning; Wang, Zhuo; Shang, Jing; Zhang, Zhenyu; Wang, Xin;
    Publisher: Wolters Kluwer Health

    Abstract Rationale: Foreign body (FB) aspiration in adults is occasionally encountered. The aspiration and impaction of a coin in the lower respiratory tract is an unusual accident. This report presents 2 rare adult cases of FB aspiration with coin impaction in larynx a...

  • Open Access English
    Authors: 
    Frank Vriesekoop; Jing Chen; Jenna Oldaker; Flavien Besnard; Reece Smith; William Leversha; Cheralee Smith-Arnold; Julie Worrall; Emily Rufray; Qipeng Yuan; +3 more
    Publisher: Multidisciplinary Digital Publishing Institute

    In this study we report the underlying reasons to why bacteria are present on banknotes and coins. Despite the use of credit cards, mobile phone apps, near-field-communication systems, and cryptocurrencies such as bitcoins which are replacing the use of hard currencies,...

  • Publication . Article . Preprint . 2015
    Open Access English
    Authors: 
    Peng Xue; Rong Zhang; Hao Qin; Xiang Zhan; Zhihao Bian; Jian Li; Barry C. Sanders;

    We demonstrate a quantum walk with time-dependent coin bias. With this technique we realize an experimental single-photon one-dimensional quantum walk with a linearly ramped time-dependent coin flip operation and thereby demonstrate two periodic revivals of the walker d...

  • Open Access English
    Authors: 
    Shuncheng Lee;
    Publisher: Elsevier

    The indoor and outdoor air quality of two staff quarters of Hong Kong Polytechnic University at Tsim Sha Tsui East (TSTE) and Shatin (ST) were investigated. The air sampling was carried out in winter for about two months starting from January to February of 1996. Fiftee...

  • Publication . Article . Preprint . 2015
    Open Access English
    Authors: 
    Liang-Yuan Zhao; Zhen-Qiang Yin; Shuang Wang; Wei Chen; Hua Chen; Guang-Can Guo; Zheng-Fu Han;

    Quantum coin tossing (QCT) is an important primitive of quantum cryptography and has received continuous interest. However, in practical QCT, Bob's detectors can be subjected to detector-side channel attacks launched by dishonest Alice, which will possibly make the prot...

  • Open Access English
    Authors: 
    Liao Zhang; Xiaolong Guo; Jiangtao Huang; Yanyu Qu; Chaoqun Niu; Zhi Du; De Li; Yong Chen;
    Publisher: Frontiers Media S.A.

    In situ characterization techniques have made a significant progress in recent years, especially in the electrochemical field. For Li-ion batteries, in situ characterization techniques refer to using analytical equipment to directly characterize electrode materials duri...

  • Open Access English
    Authors: 
    Sun Fatt Boyd; Cindy Johnny; Shirley Marylinda Bakansing;
    Publisher: EDP Sciences

    Sabah is blessed with natural forest habitats and rich with floras and faunas. Amongst its’ attraction is wildlife endemism. Lok Kawi Wildlife Park was established to provide an alternative wildlife tourism destination with its inhabitants from the wildlife species of B...

  • Open Access English
    Authors: 
    Rodriguez, Juan J Llibre; Ferri, Cleusa P; Acosta, Daisy; Guerra, Mariella; Huang, Yueqin; Jacob, KS; Krishnamoorthy, ES; Salas, Aquiles; Sosa, Ana Luisa; Acosta, Isaac; +9 more
    Publisher: Lancet Publishing Group
    Project: WT

    Summary Background Studies have suggested that the prevalence of dementia is lower in developing than in developed regions. We investigated the prevalence and severity of dementia in sites in low-income and middle-income countries according to two definitions of dementi...

  • Open Access English
    Authors: 
    Wen An Liu; Hong Yong Ma;
    Publisher: Elsevier B.V.

    The following restricted model of coin-weighing problem is considered: there is a heavier coin in a set of n coins, n - 1 of which are good coins having the same weight. The test device is a two-arms balance scale and each test-set is of the form A : B with |A| = |B| ≤ ...