Sidewall roughness measurement is becoming increasingly important in the micro-electromechanical systems and nanoelectronics devices. Atomic force microscopy (AFM) is an emerging technique for sidewall scanning and roughness measurement due to its high resolution, three-dimensional imaging capability and high accuracy. We report an AFM sidewall imaging method with a quartz tuning fork (QTF) for...

This paper describes a MEMS RF switch designed and developed specifically for space communication systems, with a novel geometry and operating mode that overcome the drawbacks of previous devices. To avoid the need for high voltage control, the switch uses electro-thermal rather than electrostatic operation; although this requires higher power consumption during switching, a latching configurat...

We have developed an instrument for optically measuring carrier dynamics in thin-film materials with approximately 150 nm lateral resolution, approximately 250 fs temporal resolution and high sensitivity. This is accomplished by combining an ultrafast pump-probe laser spectroscopic technique with a near-field scanning optical microscope. A diffraction-limited pump and near-field probe configura...

UNLABELLED The anatomical characterization of the orbitofrontal cortex in human is limited in literature instead of many functional and clinical studies involving it. OBJECTIVE Anatomically define the orbitofrontal region aiming to possible neurosurgical treatments and unify the scientific nomenclature as well. METHOD We analyze eighty four human hemispheres using a surgical microscope. The...

Septate uterus is the most common structural anomaly of all mullerian defects. It is included in Class V of the AFS classification of anomalies of mullerian ducts. Fusion of the median septum of the mullerian ducts proceeds cephalad from the mullerian tubercle up to the junction of future round ligaments; shortly thereafter, the septum between the ducts is resorbed. Congenital defects can occur...

Varus and valgus joint laxity of the normal living knee in flexion was assessed using MRI. Twenty knees were flexed to 90 degrees and were imaged in neutral and under a varus-valgus stress in an open MRI system. The configuration of the tibiofemoral joint gap was studied in slices which crossed the epicondyles of the femur. When a varus stress was applied, the lateral joint gap opened by 6.7 +/...

We report the reduced waveguiding efficiency for the signals around 1560 nm as the injection current of an GaAs/ AlGaAs multiple quantum well laser diode (lasing wavelength at 840 nm) with a ridge-loading waveguide configuration increased. This reduction trend stopped when the injection current reached the threshold condition of the laser diode. The decreased waveguide transmission and the more...

One of the most serious challenges in international relations pertains to the theory and measurement of transformation and change. This paper proposes, and then develops a conceptual and methodological extension in the measurement of change within and across states as postulated by lateral pressure theory. It argues, and shows, that by conceptualizing the profiles of states identified by latera...

One hundred normal fingers were dissected and arthrographs obtained by injection of chromopaque-gelatin mixture, allowing comparison between the radiographic and macroscopic configuration of the synovial capsule. Synovial recesses protruding from each side of every metacarpo-phalangeal joint were found in relation to the collateral ligaments and corresponding exactly with the site of radiologic...

The concept of configuration of groups which is defined in terms of finite partitions and finite strings of elements of the group is presented by Rosenblatt and Willis. To each set of configurations, a finite system of equations known as configuration equations, is associated. Rosenblatt and Willis proved that a discrete group G is amenable if and only if every possible instance of its configur...