ABSTRACT. The effectiveness of structural health monitoring via ultrasonic methods is seriously compromised by changing environmental conditions such as temperature. Variations in temperature can be spuriously identified as damage owing to thermal expansion or contraction of the material as well as changing of the wave propagation speed. This problem becomes even more serious when temperature c...

The northward migration of the Mendocino Triple Junction is associated with complex faulting within the Gorda plate and in the convergent zone between the Gorda and North American plates. This region has experienced substantial recent large earthquake activity, and quantification of these faulting processes i essential for understanding the evolution of the triple junction. Using an empirical G...

A Proton Electrolyte Membrane fuel cells (PEMFC) is considered to be a viable alternatives Internal Combustion Engines (ICEs) in automotive applications due the key advantages thermal management system. The main duty of system maintain desirable temperature, with uniform temperature distribution across stack and.its.individual membranes. In this paper, enhancement PEMFC cooling plate was analys...

Printing plate performance is one of the crucial factors affecting the printed product quality. In particular, when producing printing plates for larger print runs, a rigorous quality control has to be performed, since any bulk and surface imperfection can have a large detrimental effect on print sharpness, contrast, non-uniformity, colour gamut, and other print properties. In our research two ...

The purpose of the study was a biodynamic analysis of the kinematic, dynamic and EMG parameters of two types of drop jumps (heights of 25 cm and 45 cm). The sample of measured subjects included four female elite triple jump athletes, with their best results varying from 13.33 to 15.06 meters. The kinematic and dynamic parameters were calculated with the use of a bipedal tensiometric force plate...

The stability of the intelligent power module has a very significant impact on operation air conditioner. In this paper, prototype experimental platform is built to verify feasibility simulation results. Next, thermal performance and flow characteristics heat sink are analyzed, including single-factor analysis interactive effects. results show that smaller pipe diameter can reduce maximum tempe...

The contents of this work explore the influence three geometric parameters on controlled cavity collapse at liquid interface and subsequent ejected drop; are angle ejecting nozzle plate (θ), height (H), radius (R) vessel used to enclose within. conducted computational modeling shows that changing from a flat surface inclined in one direction causes droplet diameter decrease, whereas an inclinat...

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o Keywords: Rock–analog materials Co-seismic slip rates Rate weakening and strengthening...

the effect of steel plate thickness on the repair effectiveness of rc beam is presented in this paper. a total of four beams were tested, one beam repaired by cfrp with a thickness of 1.2 mm and used as a control beam, and three beams repaired by a steel plate. steel plates with a thickness of 2 mm, 3 mm, and 4 mm were used in repairing the beams. the maximum load-carrying capacity, deflection ...