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| 1 | Determination of Polarity Terms of Some Nitrogen-Containing Surfactants and Simulated Hydrophobic Tail Models by Gas Chromatography显示文摘Some polarity terms of two groups of nitrogen-containing surfactants (six alkanolamides and nine polyoxyethylenated long chain amines) are measured through gas chromatography. The apparent methanol carbon number (CMeOH) and polarity index (IP) values are determined on the investigated surfactants as stationary phases in packed columns. Similarly, CMeOH and IP values are determined on simulated hydrophobic tail (SHT) models. The obtained results reveal that the introduction of SHT approach permits the distinction between the polarities of different surfactants and their head groups. The measured polarity terms are discussed as related to hydrophile-lipophile balance (HLB) number and the hydrophobic group carbon number (RCN). Some equations relating the measured polarity values and these variable have been developed. | BARAKAT Y IBRAHIM V MOSTAFA N E SHAKER N O | 2005 | 色谱2005，23，4： | 3 |
| 2 | Effect of dietary protein level and strain on growth performance of heat stressed broiler chicks显示文摘 | Rashid H O S Huwaida E E M Ibrahim Y A | 2012 | International Journal of Poultry Science2012，11，10： | 1 |
| 3 | Treatment of Highly Polluted Paper Mill Wwastewater by Solar Photocatalytic Oxidation with Synthesized Nano TiO2 显示文摘 | Ghaly Montaser Y Jamila Tarek S E1-Seesy Ibrahim E | 2011 | Chemical Engineering Journal2011，168，1： | 1 |
| 4 | Study of gastro-intestinal helminths of scavenging chickens in four rural districts of Amhara region, Ethiopia 显示文摘 | Eshetu Y Mulualem E Ibrahim H | 2001 | Revue seientifique et technique (International Office of Epizootics)2001，20，： | 1 |
| 5 | Temperature-dependent evolution of the electronic and local atomic structure in the cubic colossal magnetoreslstlve mangamte Rev B,2008,77 125134 (1 Lal-x Srx Mn03 显示文摘 | Mannella N Booth C H Rosenhahn A Sell B C Nam-bu A Marchesini S Mun B S Yang S H Watanabe M Ibrahim K Arenholz E Young A Guo J Tomioka Y Fadley C S | 2008 | Phys2008，19，： | 1 |
| 6 | Involvement of the rostral anterior eingulate cortex in consolidation of inhibitory avoidance memory: interaction with the basolateral amygdala显示文摘 | Malin E L Ibrahim D Y Tu J W | 2007 | Neurobiol Learn Mere2007，87，： | 1 |
| 7 | Identification of a distinct antibacterial domain within the N-lobe of ovotransferrin显示文摘 | Ibrahim H R E Iwamori Y Sugimoto | 1998 | Biochim Biophys Acta1998，1401，3： | 1 |
| 8 | Pulsed multiple reaction monitoring approach to enhancing sensitivity of a tandem quadrupole mass spectrometer显示文摘 | Belov M E Prasad S Prior D C Danielson W F 3rd Weitz K Ibrahim Y M Smith R D | | 0，，06： | 1 |
| 9 | A one step separation of im- munoglobulin G from bovine serum by pseudobioaffinity chroma- tography on histidine grafted to epoxy activated sepharose显示文摘 | Assem E Tania Y Ibrahim S | 2012 | Bi- otechnology and Bioprocess Engineering2012，17，3： | 1 |
| 10 | Postoperative pain in multiple-visit and single-visit root canal treatment显示文摘 | El Mubarak A H Abu-bakr N H Ibrahim Y E | 2010 | J Endod2010，36，1： | 1 |
| 11 | Mesothelial cell transplantation in the infarct scar induces neovascularization and improves heart function显示文摘 | Ibrahim E Chen Y Liliane L | 2005 | Cardiovasc Res2005，68，2： | 1 |
| 12 | Relationships of Surfactant Head Group Weight Fraction and Some Polarity Terms by Gas Chromatography显示文摘Polarity, partition coefficient (K), methanol carbon number of surfactant ((CMeOH)S), and methanol carbon number of surfactant head group ((CMeOH)HG) are measured on six alkanolamides and five polyoxyethylenated long chain amines as stationary phases. From the measured methanol carbon numbers, polarity indices, (IP)S and (IP)HG, are calculated. The determined polarity terms are plotted against the head group weight fraction ( fHG ) of the investigated surfactants and several equations have been developed. The study reveals that the molecular structural gap between alkanolamides and polyoxyethylenated long chain amines diminished when HLB numbers of these surfactant classes are plotted against fHG values. Consequently, a general equation relating HLB and fHG is obtained. | BARAKAT Y MOSTAFA N E IBRAHIM V MANSOUR R | 2005 | 色谱2005，23，4： | 1 |
| 13 | Assessment of risk factors responsible for difficult weaning from mechanical ventilation in adults显示文摘 | Khalil Y Ibrahim E Shabaan A | 2012 | Egyptian Journal of Chest Disease and Tuberculosis2012，61，3： | 1 |
| 14 | Efficient synthesis of 18 -40 membered macrocyclic polyoxadiamides and polyoxa- tetraamides via ring closing metathesis 显示文摘 | Ibrahim Y A John E | 2006 | Tetrahed- ton2006，62，： | 1 |
| 15 | Estimating DNA repair by sequential evaluation of head and neck tumor radiation sensitivity using the comet assay显示文摘 | Terris D J Ho E Y Ibrahim H Z | 2002 | Arch Otolaryngol Head Neck Surg2002，128，6： | 1 |
| 16 | Preservative potentials of some aerosol propellants-effectiveness in some pharmaceuti eals oils 显示文摘 | IBRAHIM Y K E SONNAG H G | 1993 | Pharmazeutisehe Industries1993，55，11： | 1 |
| 17 | Efficient Synthesis of 18-40 Membered Macrocyclic Polyoxadiamides and Polyoxatetraamides via Ring Closing Metathesis显示文摘 | Ibrahim Y A John E | 2006 | Tetrahedron2006，62，5： | 1 |
| 18 | Alterna tives to traditional preservatives 显示文摘 | IBRAHIM Y K E GEISS H K SONNAG H G | 1992 | SOFW Journal1992，，： | 1 |
| 19 | Influence of zinc supplementation on histopathological changes in the stomach, liver, kidney, brain, pancreas and spleen during subchronic exposure of Wistar rats to glyphosate 显示文摘 | Tizhe E V Ibrahim N D Fatihu M Y | 2014 | Comp Clin Path2014，23，5： | 1 |
| 20 | Identification ofa distinct antibacterial domain within the N-lobe of ovotransfenin显示文摘 | IBRAHIM H R IWAMORI E SUGIMOTO Y | 1998 | Biochim Biophys Acta1998，1401，3： | 1 |
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