A 49-year-old female was referred for further evaluation of exercise-induced symptomatic 2nd degree 2 : 1 atrioventricular (AV) block (Mobitz type 2, Panel A). Several days of telemetric surveillance confirmed intermittent AV block but did not reveal evidence of any other arrhythmias. Coronary angiography showed normal coronary arteries. However, despite overall normal left ventricular ejection...

While a plethora of techniques are available for ventral hernia repair (VHR), these may fall short in the face of chronic near-total loss of abdominal domain. The Wittmann patch (Star Surgical, Burlington, WI) has been described in the literature as an acute method of maintaining abdominal wall integrity with planned re-laparotomy. However, we demonstrate that it is also an effective adjunct to...

Structural system identification using recursive methods has been a research direction of increasing interest in recent decades. The two prominent methods, including the Extended Kalman Filter (EKF) and the Particle Filter (PF), also known as the Sequential Monte Carlo (SMC), are advantageous in this field. In this study, the system identification of a shake table test of a 4-story steel struct...

The high level of noise in helicopter cabins considerably compromises the comfort and safety pilot passengers. To verify feasibility effectiveness microperforated panel composite sound absorption structures for suppression cabins, simulation experimental studies were conducted on a model light cabin. First, three cabin wall designed. Then, finite element main gear/body acoustic vibration coupli...

a three day old neonate was referred to our department with a problem of a sternal cleft. sternal clefts are often associated with a myriad of other abnormalities ranging from mild to severe. we present our experience with such a problem, and review the current literature concerning it.

The radiant cooling combined with attached jet air supply system is a temperature and humidity independent control system. Radiant panels are used to bear the indoor sensible heat load, load. Numerical simulation method study changes of relative dehumidification efficiency installed on ceiling wall, as well advantages disadvantages all three systems taking into consideration coupled wall deflec...

In this paper, the effect of elliptical shape openings was numerically compared to the case when circular openings were used in the steel panel shear walls. At first, the finite element model in ABAQUS was calibrated by experimental results, obtained from previous studies. Then, three steel shear panels with different sizes of elliptical openings were analyzed under cyclic loads, and the result...

This paper reports the results of three thin wythe precast sandwich panels tested under axial load. Panel reinforcements and shear connectors in current state civil construction context are evaluated. The authors measured displacement at two distinct panel heights as well along width to provide load–displacement behavior cross-section level broaden experimental data on subject. test developed t...