bainitic transformation at low transformation temperatures leads to a microstructure involving fine plates of bainitic ferrite and thin films of retained austenite. this microstructure has shown ultimate tensile strength of about 2.2 gpa, noticeable uniform elongation in the range of 5 to 30%, hardness values of about 600 to 670 hv and impact toughness in the range of 30 to 40 mpa m1/2. with ca...

BACKGROUND Retained rectal foreign bodies have been encountered more frequently and present a dilemma for management. Most of the reports on these cases were documented in the form of case report and from Western countries. The present study was a review on the authors' experiences in such cases. METHODS Data from January 1979 to January 2000 were extracted from a computerized database of Tai...

Cryogenic treatment can be used as a supplemental treatment that is performed on some tool steels between quenching and tempering as an effective method for decreasing retained austenite and increasing wear resistance. In this research, the effect of deep cryogenic treatment (DCT) on dimensional stability and mechanical properties of 80CrMo12 5 tool steel was investigated. The martensitic trans...

Cattle farming is an ancient practice, with roots in the early Neolithic era that has retained a major status food industry, global beef market revenue amounting to $385.7B (as of 2018). Hence, cattle maintenance essential for catering nutritional requirements modern civilization. This extensive review aims provide holistic overview microbiome, analyzing native microbial composition within resp...

statement of the problem: one disadvantage of cement-retained crowns is the lack of predictable irretrievability. this problem can be overcome through designing a screw access hole in the metal substructure of cement-retained restoration and using porcelain stain to define this area. purpose: this study aimed to evaluate the influence of existence of screw access hole on porcelain fracture resi...

The retained placenta is a significant cause of maternal mortality and morbidity throughout the developing world. It complicates 2% of all deliveries and has a case mortality rate of nearly 10% in rural areas. Ultrasound studies have provided fresh insights into the mechanism of the third stage of labour and the aetiology of the retained placenta. Following delivery of the baby, the retro-place...

Background: A 36-year-old male presented to the emergency department with a 4-day history of vomiting, loss of appetite and gastric pain radiating to the back. He denied fever and diarrhea. His medical record includes a Billroth-II procedure in another hospital for gastric lymphoma in 1992, hepatitis C and ferriprive anemia. Vital signs in the emergency department were normal. The abdomen was s...

Reconstruction of a facial defect is a complex modality either surgically or prosthetically, depending on the site, size, etiology, severity, age, and the patient’s expectation. The loss of an auricle, in the presence of an auditory canal, affects hearing, because the auricle gathers sound and directs it into the canal. The auricle acts as a resonator to slightly amplify lower frequency sounds ...