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Search Results: 1 - 10 of 401292 matches for " M. Jouki "
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Some Physical Properties of Rice Seed (Oryza sativa)
M. Jouki,N. Khazaei
Research Journal of Applied Sciences, Engineering and Technology , 2012,
Abstract: Physical and mechanical properties of rice are necessary for the design of equipment to handle, transport, process and store the crop. These properties were evaluated as a function of moisture content of grain. The objective of this work was to determine the physical and mechanical properties of rice. The grain was tested for bulk density, true density, sphericity, porosity, angle of internal friction and coefficient of friction with various materials at 12% moisture content (dry basis, db). The average length, width, thickness and the average thousand grain weight of the rye grains were, 7.43, 2.75, 2.53 mm and 26.91 g. The static coefficient of friction 0.4835, 0.4061 and 0.3670 for wood, galvanized iron and glass surfaces respectively. The higher friction coefficient values were observed on wood surface and the lowest on steel surface.
Effects of Storage Time on Quality Characteristics of Frozen Turkey Meat
M. Jouki,F. Tabatabaei,N. Khazaei,F. Motamedi Sedeh
International Journal of Animal and Veterinary Advances , 2012,
Abstract: The samples were stored at -18oC and undergone microbial analysis, chemical characteristics and sensory evaluation at 2-month intervals. Mean bacterial loads and coliform counts were 7.1×107±2.0×106 and 1.9×107±7.1×106 CFU/g. In this study, frozen storage was more effective than either treatment alone at decreasing total and coliform counts. Microbial analysis indicated that freezing storage had a significant effect (p<0.05) on the reduction of microbial loads. Frozen storage of samples months had no significant effect on their Total Volatile Nitrogen (TVN) contents during two-month storage, while storage more than 2 months significantly increased the PV and TVN for samples. Storage of packed meat under frozen condition enhanced product shelf life for 2 months without undesirable and detrimental effects on its sensory acceptability.
Effects of Extended Storage on Bitter Orange Quality Factors
Naimeh Khazaei,Mohammad Jouki,Ali Jouki
Research Journal of Applied Sciences, Engineering and Technology , 2012,
Abstract: The objective of this research was to determine the effects storage time on some quality parameters of bitter orange. In this study Physical, chemical and sensory properties were monitored at 4oC for 18 days. pH, DL, WHC, shear force values, microbial contamination and sensory Characteristics were determined. Bitter oranges were sanitized, peeled, segmented and packed in polyethylene (PE) trays. The study indicated that time storage had no significant effect (p>0.05) on pH with samples stored at 4±1oC. shear force increased over time but not significantly (p<0.05). DL increased over time while WHC decreased during storage. In summary, packaging of fresh bitter orange accompanied by refrigeration storage enhanced product shelf life for 12 days without undesirable and detrimental effects on its sensory acceptability.
Comparison of physiochemical changes in two popular strawberry cultivars grown in Iran (cvs. Kurdistan & Selva) during storage time at 4°C
Jouki Mohammad,Dadashpour Ahmad
Genetika , 2012, DOI: 10.2298/gensr1203679j
Abstract: In this study the effect of storage time on some quality parameters of two strawberry cultivars fruits storage at 4°C have been evaluated. Several quality parameters were monitored during the storage period. The samples were analyzed 1, 7, 14 and 21days during storage. Fruits were analyzed about fruit weight, sugar content, chromatic parameters L*, a*, b*, fruit firmness, total titrable acidity, pH, and sensory evaluation. The Kurdistan strawberries retained their weight throughout the experiment as opposed to the Selva strawberries which lost 0.6% of their weight per day because of dehydration. The Selva cultivar was exceptionally firmer than Kurdistan strawberries. Two cultivars were rich in vitamin C and sugar but these values were more in Kurdistan cultivar. As expected, Chroma decreased and over the storage time in two cultivars. The results of this study showed that packaged Kurdistan strawberries could prove suitable for 7 days at 4°C compare with 4 days for selva strawberries.
Effects of Storage Time on Some Characteristics of Packed Camel Meat in Low Temperature
Mohammad Jouki,Naimeh Khazaei
International Journal of Animal and Veterinary Advances , 2011,
Abstract: The objective of this research was to determine the effects storage time on chemical, physical and microbial characteristics camel meat. In this study longissiums muscles of camel meat were excised and stored at 4±1oC. pH, DL, WHC, shear force values, microbial contamination and sensory Characteristics were determined. The study also indicated that time storage had no significant effect (p>0.05) on pH with samples stored at 4±1oC. shear force increased over time but not significantly (p<0.05). Total Plate Counts (TPC), Pseudomonas sp., and yeasts and molds significantly increased with time. After 14 days, Total viable counts for packed camel meat reached about 7 log cfu g. DL increased over time while WHC decreased during storage. In summary, packaging of fresh camel meat accompanied by refrigeration storage enhanced product shelf life for 12 days without undesirable and detrimental effects on its sensory acceptability.
Determination of Chemical Characteristics of Saffron in Different Area of Iran
Mohammad Jouki,Naimeh Khazaei,Hamid Tavakolipour,Saeed Rajabifar
Current Research Journal of Biological Sciences , 2012,
Abstract: In this research, saffron samples collected from 11 regions of Khorasan-Iran and chemical characteristics of them such as color, flavor and aroma were studied. Chemical characteristics of saffron (Crocus sativus L.) were determined by spectrophotometric device Using 255, 325 and 440 nm wavelength for three components, picrocrocin, safranal and croicn which are responsible for flavor, aroma and color parameters respectively. Spectrophotometric analysis showed that maximum absorption were 1/928 and 2/760 for pricrocrocin and crocin respectively for samples which are collected in TorbateHeydariyeh county and maximum absorption for safranal was 1/008 for samples which are collected in sheshtamad.
Study of Duct Characteristics Deduced from Low Latitude Ground Observations of Day-Time Whistler at Jammu  [PDF]
M. Altaf, M. M. Ahmad
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.33032
Abstract:

Propagation characteristics of low latitude whistler duct characteristics have been investigated based on day-time measurements at Jammu. The morphogical characteristics of low latitude whistlers are discussed and compared with characteristics of middle and high latitude whistlers. The Max. electron density (Nm) at the height of the ionosphere obtained from whistler dispersion comes out to be higher than that of the background which is in accordance with the characteristics of whistler duct. The equivalent width is found to be close to the satellite observations and the characteristics of whistler duct in low latitude ionosphere are similar to those in middle and high latitude ionosphere. The width of ducts estimated from the diffuseness of the whistler track observed during magnetic storm is found to lie in the range of 50 - 200 Km.

Review Article: Immobilized Molecules Using Biomaterials and Nanobiotechnology  [PDF]
Magdy M. M. Elnashar
Journal of Biomaterials and Nanobiotechnology (JBNB) , 2010, DOI: 10.4236/jbnb.2010.11008
Abstract: Immobilized molecules using biomaterials and nanobiotechnology is a very interesting topic that touching almost all aspects of our life. It uses the sciences of biology, chemistry, physics, materials engineering and computer science to develop instruments and products that are at the cutting edge of some of today’s most promising scientific frontiers. In this review article, the author based on his experience in this arena has tried to focus on some of the supports for im-mobilization; the most important molecules to be immobilized such as DNA, cells, enzymes, metals, polysaccharides, etc and their applications in medicine, food, drug, water treatment, energy and even in aerospace. He specified a special section on what is new in the arena of supports and technologies used in enzyme immobilization and finally a recommendation by the author for future work with a special attention to up-to-date references.
Using of the generalized special relativity (GSR) in estimating the neutrino masses to explain the conversion of electron neutrinos  [PDF]
M. H. M. Hilo
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.34044
Abstract: In this work the Generalized Special Relativity (GSR) is utilized to estimate masses of some elementary particles such as, neutrinos. These results are found to be in conformity with experimental and theoretical data. The results obtained may explain some physical phenomena, such as, conversion of neutrinos from type to type when solar neutrino reaches the Earth.
Postischemic Lower Extremity Wounds Treated with and without Negative Pressure Dressing  [PDF]
Naz?mmü?
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.37075
Abstract: Background: Vacuum-assisted dressing is a noninvasive closure system of the wound, which makes localized and controlled negative pressure. Its mechanical tension reduces edema, stimulates granulation tissue formation and angiogenesis, and prepares the wound bed for closure. In this study, a patient has been presented, who suffered from serious lower extremity wounds due to arterial emboli, one of her wounds has been treated with vacuum-assisted dressing and the other with conventional dressing to evaluate the efficacy of vacuum-assisted dressing in acute ischemic wounds. Methods: A 65-year-old female patient was admitted to the emergency clinic, due to complaint of severe pain in her right lower extremity which suggested an acute arterial occlusion. She immediately underwent an embolectomy operation; however, a few days later, severe ischemia on the leg and foot became appearant. All of the necrosis was sharply debrided under sterile conditions in the operating room, and then lower leg wound was covered with vacuum-assisted dressing, also calcaneal wound was dressed with silver sulphadiazine. Results: Eighteen days after the first dressing with negative pressure, distal leg wound became ready for closure, whereas, enough granulation tissue over the calcaneal area developed merely thirty-four days later. Calcaneal wound closed spontaneously within fifty-three days. Conclusions: When dealing with this experience, using the negative pressure dressing in patient with severe lower limb wounds following arterial emboli, accelerates wound healing by means of developing the granulation tissue, and rapidly prepares the wound for closure, so it may reduce the risk of amputation.
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