At the beginning of the last decade, the superiority of the gel centrifugation technique (ID Micro Typing System®, DiaMed, Cressier sur Morat, Switzerland) compared to classical tube techniques for the detection of red cell antibodies (rbc-abs) was established [1–3]. Since then, it has become the standard technique in many laboratories, even though modifications [4] and alternative methods [5],...

An active micro-endoscope based on concentric tubes, an emerging class of continuum robots, is presented hereby. It is designed to reach the digestive tube and the stomach for early cancer detection and intervention. The manipulator is constructed from three flexible, telescopic, and actuated tubes. The actuators are based on Electro-Active Polymer electrodes coated and patterned around the tub...

In the present study, the flow boiling heat transfer of R1234ze(E), R32 and zeotropic mixture R1234ze(E)/R32 (50/50 mass%) in a horizontal micro-fin tube is experimentally investigated to clarify the pressure drop and heat transfer characteristics. Tested micro-fin tube is made of copper, and its geometry is as follows, 6.00 mm in outer diameter, 5.21 mm in mean inside diameter, 0.26 mm in fin ...

OBJECTIVE To survey tube wells and households in Araihazar upazila, Bangladesh, to set the stage for a long-term epidemiological study of the consequences of chronic arsenic exposure. METHODS Water samples and household data were collected over a period of 4 months in 2000 from 4997 contiguous tube wells serving a population of 55000, the position of each well being determined to within +/- 3...

Biophysical behavior of blood in the vasculature is of importance in microcirculation researches. Especially, rheological properties of blood flow have been studied using in vivo and in vitro experiments. This paper describes flow characteristics of in vitro blood flow. In order to obtain velocity distributions with high spatial resolution, a micro PIV technique, which consists of a fluorescent...

E-nose (Electronic nose), which is an array of chemical sensors, is widely used in food industry and pollution control. Nowadays e-nose technology has become powerful tool to evaluate the aroma compounds during the quality control process. This work is intended to detect biological water contaminants like coliform group of bacteria in drinking water. However, a number of limitations are associa...

This paper describes the computations of micro-strains at inner corner of cold formed rectangular hollow sections (CFRHS) made up of structural steels using finite element analysis. In order to obtain the micro-strains, distortion test is simulated by modeling two-dimensional structural steel tubes in ANSYS software. Two dimensional linear static analyses are performed by defining elastic prope...

This paper describes a micro modification of the Schneider method (1) for determination of the nucleic acids in tissues. This modification has been applied successfully to 1 to 3 mg. (wet weight) samples of pollen mother cell material from plant anthers, the samples containing from 1.6 to 15.1 y of desoxyribose nucleic acid and from 8.6 to 58.0 y of ribose nucleic acid per mg. (wet weight). The...

BACKGROUND Current methods of female surgical sterilisation require incisional surgery, general anaesthesia and a prolonged recovery time. We studied the safety and effectiveness of Essure pbc, a minimally invasive, transcervically placed micro-insert that occludes the Fallopian tubes, resulting in permanent female contraception. Device under study: The Essure pbc implant is a dynamically expan...

Abstract Compared with low-permeability oil reservoirs, tight reservoirs have more nanopores, complex pore structure, and obvious nonlinear seepage characteristics. Under the macro-scale channel flow, influence of micro-forces is often ignored, but micro-nano-scale become main factors affecting flow. The flow different from requires force between fluid micro-nano tubes. article conducts thresho...