Quality of health care service in pain clinics in Mansoura, Egypt: a cross-sectional comparative study

Ghaffar, Nevert A. Abdel; Ghaffar, Mahmoud A. Abdel; Ghaffar, Adel A El

doi:10.4103/roaic.roaic_63_19

Cited by 3 publications

(8 citation statements)

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“…Cotton samples were spun using different spinning process being carded, combed, carded compact, combed compact, jetring carded and jetring combed systems. The six spinning systems were graphically illustrated in flow chart as in Figure (1). Under each spinning system, three yarn counts (40's, 50's and 60's Ne) and three twist multipliers (4, 4.4, and 4.8) were applied to study their effects on the yarn hairiness phenomenon.…”

Section: Methodsmentioning

confidence: 99%

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Determination of the optimum technological criteria under different spinning systems affecting the yarn hairiness

Mahmoud

2019

International Design Journal

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Compact Ring Spinning Systems Hairiness Twist Multiplier JetringYarn hairiness is reflected the amount of free fibers protruding from the spun yarn body towards the outer yarn surface. From a spinning point of view, studying this phenomenon is considered essential step because it influences the post spinning operation and the characteristics of the end textile structure. Many spinning factors are affecting the yarn hairiness. The main objective of this search is to examine the effect of yarn count and twist multiplier on yarn hairiness under six different spinning systems. Accordingly, three yarn counts (40's, 50's and 60's Ne) and three twist multipliers (4, 4.4 and 4.8) were applied. The used spun systems were carded, combed, carded compact, combed compact, jetring carded and jetring combed systems. Three-dimensional response surface graphs were used to easy and faster understand the results. Results indicated that the lowest hairy yarn was spun by jetring combed spinning system with significant differences compared to the other spinning systems. Jetring carded and combed compact ring spinning systems occupied the second order regarding the production of the least hairy yarns with significant differences than the others. Overall the used spun systems, it is indicated that the hairy yarns may be dramatically decreased with increasing yarn count to a certain extent and then slightly decreased while the hairiness was gradually decreased with increasing twist multiplier. However, the percentage of decrease % of hairy yarn with increasing yarn count was greater than that observed by increasing twist multiplier under all spun systems. Multiple regression analysis exhibited that yarn count and twist multiplier explained the most variation of hairiness expressed as high values of coefficient of determination (R 2 %). Also, it is presented that the relative importance % of yarn count toward yarn hairiness was greater than that observed by twist multiplier overall applied spun systems.

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Section: Methodsmentioning

confidence: 99%

“…Results presented in Table (1) showed the mean values of hairiness as affected by yarn count and twist multiplier under carded spinning system. There were significant differences among yarn English counts, twist multiplier and their interaction effect.…”

Section: -Carded Spinning Systemmentioning

confidence: 99%

Determination of the optimum technological criteria under different spinning systems affecting the yarn hairiness

Mahmoud

2019

International Design Journal

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“…Synthesis from quinazolinones. Treatment of 2methylquinazolin-4(3H)-one (67) with phosphorus pentasulde and phosphorus oxychloride followed by reaction with thiourea in ethanol at reux temperature yielded 2-methylquinazoline-4thiol (68). The respective 2-substituted-quinazoline-4-thiol derivatives (69a-d) were synthesized by reactions of 68 with aryl aldehydes.…”

Section: Synthesis Of Pyrimidoquinazolinesmentioning

confidence: 99%

“…Subsequent 1,3 H transfer and intramolecular cyclocondensation yielded the respective products 74a and 74b (Scheme 18). 68 2.3.6. Synthesis from aryl aldehydes.…”

Section: Synthesis Of Pyrimidoquinazolinesmentioning

confidence: 99%

“…The MIC (mg mL À1 ) was investigated for compound 74b against different bacterial and fungal strains, in which the MIC was found to be 78 mg mL À1 against the S. aureus bacterial microorganism and G. candidum fungal strain. 68 The MICs of the anticipated cycloalkylpyrimidopyrimidinones 92a-d and pyrimido[1,6-a]pyrimidinone 28 (Schemes 7 and 23) were evaluated against S. aureus and B. subtilis as Gram-positive bacterial strains, E. coli and P. aeruginosa as Gram-negative bacterial strains, and C. albicans as a fungus. The compounds were prepared with serial dilution at concentrations of 25, 50, 100, 200, and 400 mg mL À1 .…”

Section: Cytotoxic Activitymentioning

confidence: 99%

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Advances in the chemical and biological diversity of heterocyclic systems incorporating pyrimido[1,6-a]pyrimidine and pyrimido[1,6-c]pyrimidine scaffolds

et al. 2020

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Effect of low-quality and inexpensive cotton materials on yarn properties using rotor spinning system

Mahmoud

2019

International Design Journal

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The current search aimed to produce medium and coarse yarns using low-quality and inexpensive cotton materials under the rotor spinning at four yarn counts being 10.s, 16.s, 20.s and 24.s with 4.4 twist multiplier. The used cotton materials were the waste from spinning extra long-staple cotton such as combed wastes, Giza 80 lint grade fully good fair, Giza 90 lint grade fully good fair, Giza 80 lint grade good fair, Giza 90 lint grade good fair, imported china variety and carded wastes. The used cotton materials were prepared from the commercial cotton samples of season 2017. The studied yarn mechanical properties were yarn strength, yarn evenness C.V.%, number of neps, number of thin places and number of thick places. However, the average values of five fiber properties being fiber length 2.5 %, short fiber content %, coefficient of variation fiber C.V. %, fiber strength and micronaire reading were measured for all used cotton materials. Results showed significant differences among cotton materials and among yarn counts for all studied yarn properties. The effect of interaction between cotton materials and yarn counts was only significant for yarn strength and yarn evenness C.V. %. Generally, it is obvious that the mean values of yarn strength were in descending order considering cotton materials of combed wastes, Giza 95 lint grade fully good fair, Giza 90 lint grade fully good fair, Giza 95 lint grade good fair, Giza 90 lint grade good fair, china variety and carded wastes, respectively. On the contrary, the mean values of yarn evenness C.V. %, number of neps, number of thin places and number of thin places were in ascending order for the same aforementioned cotton materials. The mean values of yarn strength were gradually decreased when the yarn count was increased while the mean values of yarn evenness C.V. %, number of neps, number of thin places and number of thin places were gradually increased when the yarn count was increased.

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Quality of health care service in pain clinics in Mansoura, Egypt: a cross-sectional comparative study

Cited by 3 publications

References 0 publications

Determination of the optimum technological criteria under different spinning systems affecting the yarn hairiness

Determination of the optimum technological criteria under different spinning systems affecting the yarn hairiness

Advances in the chemical and biological diversity of heterocyclic systems incorporating pyrimido[1,6-a]pyrimidine and pyrimido[1,6-c]pyrimidine scaffolds

Effect of low-quality and inexpensive cotton materials on yarn properties using rotor spinning system

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