IN DIRECT LEADS obtained through a small electrode attached to the epicardium, there is a nearly perpendicular return of the R wave from its peak to the base line. This intrinsic deflection marks the extinction of the electric potential of the small core of ventricle to which the electrode is applied. In precordial leads, where a relatively large electrode is at a considerable distance from the...

Current marketing of golf clubs places great emphasis on the importance of the correct choice of shaft in relation to the golfer. The design of shafts is based on a body of received wisdom for which there appears to be little in the way of hard evidence, either of a theoretical or experimental nature. In this paper the behaviour of the shaft in the golf swing is investigated using a suitable dy...

This paper presents a novel real-time crack identification method to determine the position and depth of a transverse open crack on a rotating shaft. A newly developed wireless sensor capable of being mounted directly on the shaft is employed to monitor acceleration at different points of the shaft in a rotating coordinate system. The vibration parameters obtained from the wireless sensors and ...

We have determined the relativistic light deflection of the quasar J0842+1835 as Jupiter passed within 3.7 on 2002 September 8, by measuring the time delay using the VLBA and Effelsberg radio telescopes at 8.4 GHz. At closest approach, General Relativity (GR) predicts a radial (static) deflection of 1190 μarcsec, and tangential (retarded or dynamic) deflection in the direction of Jupiter’s moti...

OBJECTIVE To compare the deflection load characteristics of homogeneous and heterogeneous joints made by laser welding using various types of orthodontic wires. MATERIALS AND METHODS Four kinds of straight orthodontic rectangular wires (0.017 inch × 0.025 inch) were used: stainless-steel (SS), cobalt-chromium-nickel (Co-Cr-Ni), beta-titanium alloy (β-Ti), and nickel-titanium (Ni-Ti). Homogene...

context functional humeral bracing remains the gold standard for treatment of humeral shaft fractures. there is an increasing trend in the literature to perform operative fixation of these fractures. evidence acquisition the aim of this systematic review was to compare the level one evidence for the outcome of non-operative with operative management of humeral shaft fractures in adults. a compr...

One of the main structural elements metalworking machines is spindle assembly (spindle), which used to hold cutting tools or workpieces. The rigidity plays a decisive role in ensuring accuracy and efficiency machine as whole. assessment shaft stiffness carried out on basis analysis static bending shaft, made it possible formulate solve problems optimizing according characteristics for two suppo...

This paper inspects the misaligned of shaft by using diagnostic medium such as current and vibration. Misalignments in machines can cause decrease in efficiency and in the long-run it may cause failure because of unnecessary vibration, stress on motor, bearings and short-circuiting in stator and rotor windings. In this study, authors investigate the onset of instability on a shaft mounted on jo...

Floating hip injuries and ipsilateral femoral neck and shaft fractures are rare. Additionally, the simultaneous occurrence of these injuries is extremely rare, and only one case report of the simultaneous occurrence of these injuries has been published. Here, we report the case of a patient with ipsilateral acetabular and femoral neck and shaft fractures following a suicide attempt. The patient...

This paper deals with an analytical approach to predict the nonlinear buckling behavior of functionally graded graphene-reinforced composite laminated cylindrical shells under axial compressive load surrounded by Pasternak’s elastic foundation in a thermal environment. Piece-wise functionally graded graphene-reinforced, composite layers are sorted with different types of graphene distribution. ...