scholarly journals Optimization of electromagnetic systems of impact on metals in semi-solid casting condition

2017 ◽  
Vol 87 ◽  
pp. 092022
Author(s):  
I I Rastvorova
Keyword(s):  
Casting Condition ◽  
Semi Solid

Effect of Casting Condition in Semi-Solid Aluminum Alloy Injection Process on Distribution of Defects and Density

2014 ◽  
pp. 11-18 ◽  
Author(s):  
Yuichiro Murakami ◽  
Kenji Miwa ◽  
Masayuki Kito ◽  
Takashi Honda ◽  
Naoyuki Kanetake ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Casting Condition ◽  
Solid Aluminum ◽  
Injection Process ◽  
Semi Solid

Effect of Casting Condition in Semi-Solid Aluminum Alloy Injection Process on Distribution of Defects and Density

2014 ◽  
pp. 11-18
Author(s):  
Yuichiro Murakami ◽  
Kenji Miwa ◽  
Masayuki Kito ◽  
Takashi Honda ◽  
Naoyuki Kanetake ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Casting Condition ◽  
Solid Aluminum ◽  
Injection Process ◽  
Semi Solid

Effect of Preheating Temperature of Multiplex-Type Slurry Cup on the Morphology of Primary Solid Phase of Semi-Solid Slurry

2006 ◽  
Vol 116-117 ◽  
pp. 332-335
Author(s):  
Suk Won Kang ◽  
Dock Young Lee ◽  
Ki Bae Kim
Keyword(s):  
Solid Phase ◽  
Isothermal Holding ◽  
Cooling Curve ◽  
Semisolid Slurry ◽  
Globular Structure ◽  
Casting Condition ◽  
Preheating Temperature ◽  
The Difference ◽  
Size And Morphology ◽  
Semi Solid

Semi-solid slurry for a rheocasting process requires a fine and globular structure of primary solid phase. In the present study, in order to find an optimum preheating temperature of a multiplex-type slurry cup in the slurry maker that we recently developed for the rheocasting process, the semi-solid slurry was held for a various time of up to 60 min. in a multiplex-type slurry cup preheated at a different temperature. A size and morphology of primary solid phase of the semisolid slurry was measured and analyzed with the difference of the recorded cooling curve during the solidification with respect to a preheating temperature of the slurry cup. Also, a microstructural evolution and globularization mechanism occurred during the isothermal holding were discussed. Finally, as considering the effect of a different casting condition on the morphology of primary solid phase the optimum manufacturing condition of the semi-solid slurry for the rheocasting process was proposed.

Self-microemulsion Technology for Water-insoluble Drug Delivery

2019 ◽  
Vol 15 (6) ◽  
pp. 576-588 ◽  
Author(s):  
Beibei Yan ◽  
Yu Gu ◽  
Juan Zhao ◽  
Yangyang Liu ◽  
Lulu Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Aqueous Solubility ◽  
Delivery Systems ◽  
Poorly Soluble Drugs ◽  
New Chemical Entities ◽  
Poorly Soluble ◽  
Water Insoluble Drug ◽  
Semi Solid ◽  
Solidification Technology

: According to the drug discovery, approximately 40% of the new chemical entities show poor bioavailability due to their low aqueous solubility. In order to increase the solubility of the drugs, self-micro emulsifying drug delivery systems (SMEDDS) are considered as an ideal technology for enhancing the permeability of poorly soluble drugs in GI membranes. The SMEDDS are also generally used to enhance the oral bioavailability of the hydrophobic drugs. At present, most of the self-microemulsion drugs are liquid dosage forms, which could cause some disadvantages, such as the low bioavailability of the traditional liquid SMEDDS. Therefore, solid self-micro emulsifying drug delivery systems (S-SMEDDS) have emerged widely in recent years, which were prepared by solidifying a semi-solid or liquid self-emulsifying (SE) ingredient into a powder in order to improve stability, treatment and patient compliance. The article gives a comprehensive introduction of the study of SMEDDS which could effectively tackle the problem of the water-insoluble drug, especially the development of solidification technology of SMEDDS. Finally, the present challenges and the prospects in this field were also discussed.

scholarly journals Routes for salmonella contamination of poultry meat: epidemiological study from hatchery to slaughterhouse

2002 ◽  
Vol 129 (2) ◽  
pp. 253-265 ◽  
Author(s):  
M. HEYNDRICKX ◽  
D. VANDEKERCHOVE ◽  
L. HERMAN ◽  
I. ROLLIER ◽  
K. GRIJSPEERDT ◽  
...  
Keyword(s):  
Horizontal Transmission ◽  
Poultry Meat ◽  
Contamination Level ◽  
Solid Agar ◽  
Determining Factors ◽  
Production Stages ◽  
Animal Material ◽  
Semi Solid ◽  
Therapeutic Doses ◽  
Broiler House

Data were collected on the prevalence of salmonella at different stages during the life cycle of 18 broiler flocks on different farms as well as during slaughter in different poultry slaughterhouses. For the isolation of salmonella, the highest sensitivity (93.9%) was obtained by enrichment in the semi-solid agar Diasalm. The ‘overshoe method’ utilizing several pairs of overshoes provided the highest sensitivity for determining the salmonella status of the broilers during rearing. A clear decrease of the relative importance of the first production stages was demonstrated for the salmonella contamination of the end product, whereas horizontal transmission of salmonella to broilers during rearing and to broiler carcasses in the slaughterhouse was shown to be the main determinative factor. Ten of the 18 flocks received a salmonella positive status with the highest shedding occurring during the first 2 weeks of rearing. The shedding of the animals was significantly negatively influenced by the use of subtherapeutic or therapeutic doses of antibiotics. The intake of portable material in the broiler house was identified as the most important risk factor for horizontal transmission. Significant associations were found between the contamination level of a flock and hygiene of the broiler house, feed and water in the broiler house and both animal and non-animal material sampled in the environment. No correlation was found between contamination during the rearing period and contamination found after slaughtering. The presence of faecal material in the transport crates and predominantly the identity of the slaughterhouse seemed to be the determining factors for carcass quality. Improved hygiene management during transport of broilers and in some slaughterhouses could significantly reduce the risk of salmonella contamination of poultry meat.

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