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Due to brittle nature for the multilayer ceramic capacitor, it's more prone to bear the excesses of mechanical stress than other electron components used in surface mounting technology. One of the most common causes of ceramic capacitor failures is directly attributable to bending of the printed circuit board after solder attachment. Excessive bending will create mechanical cracks within the ceramic...
Aimed at the status of low anti-bending property and relatively high failure rates of the multilayer ceramic capacitors which are widely used in the electronics industry. The board level interconnect with the typical multilayer ceramic capacitor were designed and fabricated. The effects of the monotonic bending loading on the multilayer ceramic capacitor board level interconnect were analyzed, including...
LED with many advantages such as high brightness, long-lifetime, and energy-saving has been successfully applied to various fields, especially on special lighting applications. At low temperatures, LED is more uniform in illumination and has a higher luminous efficiency, which is regarded as the next generation refrigeration system lighting. As well as in some cold regions, LED has also become the...
Ozone (O3) pollution has adverse effects on the trees grown in urban area. Using open top chambers, responses of antioxidant systems were detected in Ginkgo biloba leaves at different developmental stages after a long term O3 exposure (O3 concentration ≈ 80 nmol mol-1). As leaf size is closely related to the developmental stage, leaves with different sizes were chosen to indicate the various developmental...
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