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Search Results: 1 - 10 of 83540 matches for " Y. Lu "
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Localized Corrosion of Nuclear Grade Alloy 800 Under Steam Generator Layup, Startup and Operating Conditions
Y. Lu
AECL Nuclear Review , 2012, DOI: http:dx.doi.org/10.12943/anr.2012.00003
Abstract: The localized corrosion resistance of nuclear-grade Alloy 800, which is one of the preferred steam generator (SG) heat exchange tube materials of CANDU and PWR reactors, was studied under simulated SG secondary side crevice chemistry conditions at ambient temperature as well as at elevated temperatures. Series of cyclic potentiodynamic polarization tests were performed to study the localized corrosion resistance of Alloy 800 as a function of chloride ion concentration in the SG crevice solution at 40 C, 150 C and 300 C. Based on the experimental results, empirical equations were provided for calculating the pitting potential of nuclear grade Alloy 800 in the SG secondary side crevice chemistries with different levels of chloride concentration at SG layup, startup and operating temperatures.
The Pedagogical Maze: Retrospection on CLT in Hong Kong  [PDF]
Dan Lu, Julie Y. F. Ng
Open Journal of Modern Linguistics (OJML) , 2013, DOI: 10.4236/ojml.2013.34036

For years the English proficiency of general Hong Kongstudents is said to be continuously declining. There is a common belief that the execution of mother tongue education is a main factor for this phenomenon. However, rarely have people mentioned, discussed or thought of the relationship between the falling English proficiency and the prevalent teaching methodology. This paper questions the overuse of Communicative Language Teaching (CLT) in theHong Kongcontext. It pinpoints the key principles and features of CLT and examines the reality ofHong Kongstudents against these principles and features. It concludes through the comparison that although CLT is in vogue and meets the general desires of learning a new language, it has some limitations to a context like Hong Kong. Reality shows that CLT does not match the Hong Kong context in many aspects; overuse of it can only cause detrimental effects and fail the intended aim of using it to develop the learner’s communicative competence.

Antioxidant Activity Determination of Citronellal and Crude Extracts of Cymbopogon citratus by 3 Different Methods  [PDF]
Y. Lu, T. J. Khoo, C. Wiart
Pharmacology & Pharmacy (PP) , 2014, DOI: 10.4236/pp.2014.54047

Cymbopogon citratus, better known as lemongrass, is a plant commonly used for culinary purposes. It is known to contain the compound citronellal, which is responsible for the lemon-scent of many of the plants of the genus Cymbopogon. A chloroform extract of Cymbopogon citratus was screened to determine its free radical scavenging activities. Three different methods were used to test the antioxidant activity of the extract, including FRAP assay (Ferric reducing antioxidant potential), DPPH radical scavenging assay (1,1-diphenyl-2-picryl hydrazyl radical reducing power methods), and β-carotene bleaching assay. Cymbopogon citratus showed low radical scavenging activities compared to ascorbic acid, gallic acid and quercetin. The results obtained suggest that Cymbopogon citratus is best appreciated for its refreshing aroma and delicate taste, but has little to offer as a source of antioxidants.

On Two Problems for Matrix Polytopes  [PDF]
?erife Y?lmaz, Taner Büyükk?ro?lu
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.517253
Abstract: We consider two problems from stability theory of matrix polytopes: the existence of common quadratic Lyapunov functions and the existence of a stable member. We show the applicability of the gradient algorithm and give a new sufficient condition for the second problem. A number of examples are considered.
HIV treatment: mechanisms of neurotoxicity and implications for targeted therapy
Wu C, Lu Y
Neurobehavioral HIV Medicine , 2012, DOI: http://dx.doi.org/10.2147/NBHIV.S24914
Abstract: reatment: mechanisms of neurotoxicity and implications for targeted therapy Review (1465) Total Article Views Authors: Wu C, Lu Y Published Date September 2012 Volume 2012:4 Pages 75 - 98 DOI: http://dx.doi.org/10.2147/NBHIV.S24914 Received: 23 May 2012 Accepted: 14 August 2012 Published: 04 September 2012 Chengxiang Wu,1,2 Yuanan Lu1,2 1Department of Microbiology, 2Department of Public Health Sciences, University of Hawai'i, Honolulu, HI, USA Abstract: The central nervous system is known to act as a unique compartment where the human immunodeficiency virus (HIV) can replicate independently from the plasma and as a sanctuary in which the virus is largely protected from the host immune system and combination antiretroviral therapy. Although combination antiretroviral therapy has dramatically decreased the rate of HIV-caused mortality and associated diseases, neurological complications are increasingly common. However, our knowledge of the complicated pathogenesis and clinical symptoms of HIV-associated neurocognitive dysfunction is limited by a lack of complete understanding of the biology of HIV and its interaction with host cells in the central nervous system. This review focuses on the mechanisms of HIV entry and replication in the central nervous system, neurotoxicity caused by viral proteins and cytokine/chemokines derived from affected host cells, their implications for targeted therapy, and advances in the development of animal models for novel therapeutics in the context of combination antiretroviral therapy regimens.
Turkish Studies , 2011,
Abstract: Müfide Ferit Tek started writing in the era of National Literature, which was under the influence of Turkist and nationalist thought and published his second novel Pervaneler after the declaration Republic in 1924. In this his second novel, the writer especially deals with the problem of education and foreign schools, about which the new country was also very sensitive. Pervaneler is a novel which is significant with its way of dealing the mentioned subject and its fiction or framework. In this article, after the mentioned points were exemined in a detailed way, the findings were put forward. Müfide Ferit Tek, Türk ü ve Milliyet i dü üncenin etkin oldu u Mill Edebiyat devrinde eser vermeye ba lam ; ikinci roman olan Pervaneler i ise Cumhuriyet in ilan ndan sonra 1924 y l nda yay mlam t r. Bu roman nda yazar, yeni kurulan ülkenin de üzerinde hassasiyetle durdu u konulardan biri olan e itim ve yabanc okullar sorununu merkeze al r ve tart r. Pervaneler, zellikle bahsi ge en sorunu ele al tarz ve kurulu u veya yap s yla dikkati eken bir romand r. Bu makalede, s z konusu noktalar ayr nt l ekilde ele al n p incelendikten sonra ula lan bulgular ortaya konmu tur.
Mustafa Y???TO?LU
Turkish Studies , 2012,
Abstract: The study focuses on a process that has become the main problem of Judaism. As the subject, this article is reflectiton the world and the beyond world of the point of view of Judaism. This actually means that the analysis in general terms the history of Jewish thought. Although concentrated in the research issue is not exactly a history of thought. But this article examines the structure of Judaism directly. Firstly in this research discusses King Solomon’s temple which was built as an indicator of Judaism is institutionalized and the idea of Jewish towards to King State. Bu al ma Yahudili in temel sorunu haline gelen bir süreci ele almaktad r. Konu itibari ile Yahudili in dünyaya ve dünya tesine bak a s n yans tmaktad r. Bu, asl nda Yahudi dü ünce tarihinin genel anlamda analizi demektir. Ger i ara t rman n yo unla t husus tam anlam yla bir dü ünce tarihi de ildir. Ancak alan itibariyle Yahudili in do rudan yap s n inceleyen bir duruma haizdir.Ara t rmada ilk olarak Yahudili in kurumsalla t n n bir g stergesi olan Kral Süleyman’ n in a ettirdi i mabed; nemi, konumu ve etkisi gibi hususiyetleriyle tarihsel bir er evede ele al nm , nihayetinde Kral Devlete do ru giden bir Yahudi dü üncesine yer verilmi tir.
Yeni Yay nlar
Hidayet Y. Nuho?lu
Türk Kütüphanecili?i , 1980,
Mevkuteler üzerine
Hidayet Y. Nuho?lu
Türk Kütüphanecili?i , 1980,
Kitap tan tmas
Hidayet Y. Nuho?lu
Türk Kütüphanecili?i , 1979,
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