We report the systematic studies on the fabrication of aligned, uniform, and highly dense diamond nanostructures from diamond films of various granular structures. Self-assembled Au nanodots are used as a mask in the self-biased reactive-ion etching (RIE) process, using an O2/CF4 process plasma. The morphology of diamond nanostructures is a close function of the initial phase composition of dia...

not all values of literary texts should be sought for in their artistic aspects . there have been many lower-ranked literary texts that have shed light on numerous scientific, historical, social, and cultural issues. although poetic views are involved while raising such issues, it needs to be taken into account that not all poets have perceived the scientific principles of the topics tackled in...

BACKGROUND Some nonstemmed hip systems have been developed to avoid stress shielding and aseptic loosening, which are major drawbacks of stemmed hip arthroplasty. Without the stem, the cup over the femoral head can be stabilized by anatomic fitness of the cup interior and mechanical fixation of the auxiliary screws. METHODS Using finite-element method, neck-shaped systems with two bone-cup fi...

In the grinding process, friction energy generated by grains and workpiece in zone will affect service life of wheel. Ultrasonic-vibration-assisted (UVAG) can reduce force generation during grinding. this work, wear mechanism wheels UVAG is discussed detail from perspective grain trajectory tribology. The results show that has a smaller than conventional (CG). Furthermore, when initial included...

We propose a cup-shaped device called Cup-le for conversational experiment. Cup-le has various sensors to record participants’ nonverbal behavior such as utterance. Cup-le saves the work of attaching sensors. Also, since Cup-le appears cup-shaped, it can sense without being aware of the sensor unlike conventional wearable sensors. Moreover, by attaching touch display, Cup-le can show informatio...

With respect to the truing and sharpening of diamond abrasive grinding tools, traditional machining methods are briefly described, new dressing methods, such as laser method, described in detail. It is pointed out that tools a green processing method with high efficiency no environmental pollution. Numerical simulation research on pulse bronze wheel was carried out, cumulative heat transfer mod...

In total hip arthroplasty (THA) for dysplastic hip osteoarthritis, bony deformity makes it difficult to identify the correct cup height and medialization. The authors developed a new technique for registration and navigation of cup position for dysplastic hips using an imageless navigation system. Eighty dysplastic hips (Crowe type I, n=58; type II, n=18; type III, n=4) underwent THA. Thirty-fo...