A polypropylene microporous membrane (PPMM) was fabricated by thermally induced phase separation (TIPS) method. The effects of protein size and structure as well as filtration pressure on the membrane performance and fouling mechanisms were investigated using two different proteins, bovine serum albumin (BSA) and collagen, in dead-end filtration setup. Obtained results showed that, for each pro...

The structure of many secure systems has been based on the idea of a security kernel—an operating system nucleus that performs all trusted functions. The difficulty with this approach is that the security kernel tends to be rather large, complex, and unstructured. This paper proposes an alternative structure for secure embedded systems. The structure comprises three layers. At the bottom is a D...

kinematic synthesis of a trailing six-member mechanism has been carried out to achieve five precision points of an automotive steering mechanism. the inner wheel can be rotated up to forty five degrees with fair accuracy. results show that the divergent end behavior of ackermann steering mechanism has been overcome by the present mechanism. the work is similar to earlier work by the present aut...

beer is the most consumed beverage after tea, carbonates, milk and coffee in the world and it continues to be a popular drink. one of the important reason for its popularity is that beer is a drink with a pleasant flavor, an attractive color and also because of its clarity. so, membrane separation technology has become widely used in the food processing industryto attain these characteristics.a...

mammography remians the procedure of choice in screening asymptomatic women for breast cancer. however, in patients with symptoms, other types of imaging play an important role in the detection of malignancies. the high cost and lack of availability of pet and mri largely precludes the use in this patient population. ti-201 is nbt the imaging agent of choice because of its wash-out and redistri...