Results 241 to 250 of about 1,271,550 (296)

Quantitative Analysis of Cochlear-Carotid Recesses Based on HRCT in Endoscope-Assisted Management of Massive Petrous Bone Cholesteatoma. [PDF]

J Otolaryngol Head Neck Surg
Ma MY, Gao Z, Li FT, Zhang WX, Jia XH, Yuan YS.   +5 more
europepmc   +1 more source

Development of Wideband Circular Microstrip Patch Antenna for Use in Microwave Imaging for Brain Tumor Detection. [PDF]

Sensors (Basel)
Özmen H, Wu M, Dalarsson M.
europepmc   +1 more source

A novel approach to design compact, wideband, and high-gain circularly polarized MIMO antenna using dual-polarized elements and hybrid couplers. [PDF]

Sci Rep
Tran H, Kim-Thi P, Tran N, Hoang-Thi-Phuong T, Vu-Van Y.   +4 more
europepmc   +1 more source

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A novel compact-size branch-line coupler

IEEE Microwave and Wireless Components Letters, 2005
A novel compact-size branch-line coupler without any implementation of lumped-elements, bonding wires, and via holes is proposed. In this study, the size of the proposed coupler occupied only 45% of the conventional branch-line coupler at 2.4GHz. The performances of the circuit can be competed with the conventional coupler.
null Shry-Sann Liao, null Pou-Tou Sun, null Nien-Chung Chin, null Jen-Tee Peng   +3 more
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Effect of Compaction on Particle Size

Journal of Pharmaceutical Sciences, 1975
Compressed tablets were prepared on a hydraulic press at several different compaction pressures by a standardized technique, using aspirin, dicalcium phosphate dihydrate, calcium phosphato-carbonate, alumina, and microcrystalline cellulose. All tablets except microcrystalline cellulose contained a cation-exchange resin as disintegrant.
K A, Khan, C T, Rhodes
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Size effect in nanopowder compaction

Technical Physics Letters, 2010
The process of nanopowder compaction has been studied by the method of granular dynamics. The interaction of particles involves the elastic Hertz forces, tangential friction forces, and dispersive attraction forces. The curves of uniaxial compaction on the “axial pressure-compact density” plane are analyzed. Calculations have been performed for powders
G. Sh. Boltachev, N. B. Volkov
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Pore sizes and strength of compacted clay

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1974
Pore size distributions, compaction characteristics, and undrained strength and deformation data were related in tests to molding water content and type of laboratory compaction. The soil used was the commercially available illite clay called Grundite. Pore size distribution measurements, carried out by mercury porosimetry, require dry samples. Removal
S. Ahmed,, C.W. Lovell,, S. Diamond,
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Development of compact size penning ion source for compact neutron generator

Review of Scientific Instruments, 2008
For long-life operation, easy to mount and compact in size penning type ion sources are widely used in different fields of research such as neutron generators, material research, and surface etching. One penning type ion source has been developed in our laboratory.
Basanta Kumar, Das, Anurag, Shyam
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