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| 1 | A noise cross PSD estimator for dual-microphone speech enhancement based on minimum statistics显示文摘Some two-microphone noise reduction techniques that work in the frequency domain exploit coherence function between two noisy signals. They have shown good results when noise signals on two sensors are uncorrelated, but their per-formance decreases with correlated noises. Coherence based methods can be improved when the cross power spectral density (CPSD) of correlated noise signals is available. In this paper, we propose a new method for estimation of the CPSD of the noise, which is based on the minimum tracking technique. Despite the fact that the proposed estimator does not need to implement a voice activity detector (VAD), its performance is comparable to a CPSD estimator that uses an ideal VAD. | Mohsen RAHMANI Ahmad AKBARI Beghdad AYAD Nima DERAKHSHAN | 2009 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2009，10，6： | 3 |
| 2 | Study of the Effects of Water Level Depression in Euphrates River on the Water Quality显示文摘 | Ammar Harem Kamel Sadeq Oleiwi Sulaiman Ayad Sulaiby Mustaffa | 2013 | Journal of Civil Engineering and Architecture2013，7，2： | 3 |
| 3 | 一种新型美白牙膏的临床功效评价显示文摘该临床研究的目的是通过双盲试验方法来评价高露洁全效加美白牙膏对牙齿的美白效果。与高露洁全效牙膏相比 ,在高露洁全效加美白牙膏的配方中加入了高效清洁二氧化硅磨料 (highcleaningsilica ,HCS)。受试者来自于加拿大安大略的Mis sissauga地区 ,入选时均接受牙齿外源性色斑的基线检查 ,符合临床试验方案要求的受试者按年龄、性别和牙齿颜色 (外源性 )随机分成两个治疗组。受试者用软毛牙刷每天早晚各一次 ,用指定的牙膏刷牙一分钟。 6周后每个受试者再接受一次牙龄外源性色斑检查。共有 93名受试者完成了整个研究。结果经统计学处理表明 :高露洁全效加美白牙膏与高露洁全效牙膏相比 ,在减少牙齿外源性色斑面积和降低牙齿外源性色斑深度上有显著的差异。 | Farid Ayad Amal Khalaf Patricia Chaknis Margaret E.Petrone Villiam De Vizio Anthony R.Volpe Haward M.Proskin | 2004 | 牙膏工业2004，14，4： | 2 |
| 4 | Hypoxia and cytokines regulate carbonic anhydrase 9 expression in hepatocellular carcinoma cells in vitro显示文摘AIM: To study the expression of carbonic anhydrase(CA) 9 in human hepatocellular carcinoma(HCC) cells.METHODS: We studied CA9 protein, CA9 m RNA and hypoxia-inducible factor-1 alpha(HIF-1α) protein levels in Hep3 B cells exposed in different parallel approaches. In one of these approaches, HCC cells were exposed to extreme in vitro hypoxia(24 h 0.1% O2) without or with interleukin(IL)-1, IL-6, tumor necrosis factoralpha(TNF-α) and transforming growth factor-beta(TGF-β) stimulation for the same hypoxic exposure time or exposed to normoxic oxygenation conditions without or with cytokine stimulation.RESULTS: The tumour cell line analysed showed a strong hypoxic CA9 m RNA expression pattern in response to prolonged severe hypoxia with cell-line specific patterns and a marked induction of CA9 protein in response to severe hypoxia. These results were paralleled by the results for HIF-1α protein under identical oxygenation conditions with a similar expression tendency to that displayed during the CA9 protein expression experimental series. Continuous stimulation with the cytokines, IL-1, IL-6, TNF-α and TGF-β, under normoxic conditions significantly increased the carbonic anhydrase 9 expression level at both the protein and m RNA level, almost doubling the CA9 m RNA and CA9 and HIF-1α protein expression levels found under hypoxia. The findings from these experiments indicated that hypoxia is a positive regulator of CA9 expression in HCC, and the four signal transduction pathways, IL-1, IL-6, TNF-α and TGF-β, positively influence CA9 expression under both normoxic and hypoxic conditions.CONCLUSION: These findings may potentially be considered in the design of anti- cancer therapeutic approaches involving hypoxia-induced or cytokine stimulatory effects on expression. In addition, they provideevidence of the stimulatory role of the examined cytokine families resulting in an increase in CA9 expression under different oxygenation conditions in human cancer, especially HCC, and on the role of the CA9 gene as a positive disease regulator in human cancer. | Feray Kockar Hatice Yildrim Rahsan Ilikci Sagkan Carsten Hagemann Yasemin Soysal Jelena Anacker Ahmed Ayad Hamza Dirk Vordermark Michael Flentje Harun M Said | 2012 | World Journal of Clinical Oncology2012，3，6： | 2 |
| 5 | An Analysis of Groundwater in Sinjar Plain (Northwest of Iraq) Using WQI Model显示文摘Sinjar plain-northwest Iraq has an abundant amount of groundwater. Due to the importance of this water source, the water quality index (WQI) model was used in the classification of groundwater in the western and eastern regions of Sinjar plain for beneficial use. Groundwater samples were chemically analyzed to calculate the values of WQI. This model consists of a single number of the integrated deviation from standard quality, which indicates the relative importance of each relevant variable for beneficial use. The results indicate that the WQI could be used to determine the particular uses of groundwater. The groundwater in the Sinjar plain is more suitable for irrigation than for livestock drinking and domestic use. | Bassam F Al Bassam Ayad M Fadhil Faculty of Earth Resources , China University of Geosciences , Wuhan 430074 | 2001 | Journal of China University of Geosciences2001，12，4： | 2 |
| 6 | Epigenetic pathways and glioblastoma treatment显示文摘 | Jennifer Clarke Clara Penas Chiara Pastori Ricardo J Komotar Amade Bregy Ashish H Shah Claes Wahlestedt Nagi G Ayad | 2013 | Epigenetics2013，，8： | 2 |
| 7 | Novoseven use in a non-cardiac pediatric ECMO patient with uncontrolled bleeding显示文摘 | Preston TJ Olshove VF Jr Ayad O | 2008 | J Extra Corpor Technol2008，40，2： | 1 |
| 8 | Doping of polyaniline films with organic sulfonic acids in aqueous media and the effect of water on these doped films显示文摘 | AYAD M M ZAKI E A | | 0，，： | 1 |
| 9 | Antimicrobial-producing wild lactococci isolated from artisanal and non- dairy origins显示文摘 | Ayad EHE Verheul A Wouters J | 2002 | International Dairy Journal2002，12，2： | 1 |
| 10 | Computational study of natural ventilation显示文摘 | AYAD S S | 1999 | Journal of Wind Engineering and Industrial Aerodynamics1999，82，1： | 1 |
| 11 | Computational study of natural ventilation 显示文摘 | Ayad Samir S | 1999 | Journal of Wind Engineering and Industrial Aerodynamics1999，82，8： | 1 |
| 12 | Bryostatin 1 (bryol)- induced monocytic differentiation in THP-1 human leukemia cells is associated with enhanced c-fyn tyrosine kinase and MCSF receptors 显示文摘 | Yan L Ramzi M Ayad AK | 1997 | Leuk Res1997，21，5： | 1 |
| 13 | Subarachnoid catheter placement after wet tap for analgesia in labor: influence on the risk of headache in obstetric patientsp显示文摘 | Ayad S Demian Y Narouze SN | 2003 | Reg Anesth Pain Med2003，28，6： | 1 |
| 14 | Remote sensing and GIS in modeling visual landscape change:a case study of the northwestern arid coast of Egypt显示文摘 | Ayad Y M | | 0，，04： | 1 |
| 15 | Adsorption of Cu'( II ), Co ( I1 ), and Ni ( I1 ) ions by modified magnetic chitosan chelating resin 显示文摘 | Monier M Ayad D Wei Y Sarhan A | 2010 | Journal of hazardous materials2010，177，13： | 1 |
| 16 | Reconstruction of floor of mouth defects by the facial artery musculo-mucosal flap following cancer ablation显示文摘 | Ayad T Kolb F De Monés E | 2008 | Head Neck2008，30，： | 1 |
| 17 | Flavour formingabilities and amino acid requirements of Lactococcus lactis strainsisolated from artisanal and non-dairy origin显示文摘 | AYAD E H E VERHEUL A de JONG C | 1999 | International Journal ofDairy1999，9，10： | 1 |
| 18 | Expression of a novel piscine growth hormone gene results in growth enhancement in transgenic tilapia (Oreochromis niloticus)显示文摘 | Rahman M A Mak R Ayad H | 1998 | Transgenic Res1998，7，： | 1 |
| 19 | The tumour suppressor RASSF1A regulates mitosis by inhibiting the APC-Cdc20 complex显示文摘 | Song MS Song SJ Ayad NG | 2004 | Nat Cell Biol2004，6，2： | 1 |
| 20 | Comparison between two computer-assisted total knee arthroplasty: gap-balancing versus measursed resection technique 显示文摘 | Tigani D Sabbioni G Ben Ayad R | 2010 | Knee Surg Sports Traumatol Arthrosc2010，18，10： | 1 |
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