نتایج جستجو برای: aging test
تعداد نتایج: 908746 فیلتر نتایج به سال:
Front-end-of-line reliability issues such as Bias Temperature Instability (BTI), Hot Carrier Injection (HCI), and Time Dependent Dielectric Breakdown (TDDB) have become more prevalent as electrical fields continue to increase in scaled devices. The rapid introduction of process improvements, such as high-k/metal gate stacks and strained silicon, has lead to new reliability issues including BTI ...
Semantic verbal fluency tests are used as a measure of cognitive function to assess language and executive function. Secondary to increasing life spans, there are increasing numbers of older individuals at work places. Our study was done to assess the effect of aging on verbal fluency in South Indians. 50 controls aged 20-50 years (Group I) , 50 subjects aged 60-75 years (Group II) and 50 subje...
The present study aimed to evaluate effects of different surface treatments and aging of composite cylinders on bond strength of composite resin repair. Thirty-two composite cylinders were produced and divided into four groups according to type of surface treatment and storage time of composite cylinder and repair. Cylinder surface of control group (Gcontrol) received no treatment before compos...
This paper focuses on the fatigue crack growth behavior of unidirectional C/PA6 composites subjected to hydrolytic aging at temperatures ranging from 100 140 °C. The properties were determined using a multi-ΔG control test method. latter is fully automatic and allows measurement rates various ΔG levels. It was shown that highly affected by aging. Whatever temperature, rate increased about decad...
Background and Aim: This study evaluated the effect of hydrothermal aging on opti-cal mechanical properties opaque translucent zirconia. Materials Methods: For biaxial flexural strength (BFS) test, 40 sintered disc-shaped zirconia, for assessment surface rough-ness optical properties, 20 specimens were fabricated artificially aged in an autoclave 10 h. The CIE L*a*b* color parameters measured. ...
Background and Aim: Although the physical properties of modern glass ionomers have been extensively reported, few studies have examined how these parameters change with age. This experimental study aimed to investigate the effect of aging on the compressive strength of resin-reinforced glass ionomers. Material and Methods: Two glass ionomers (Fuji IX GP Fast, GC, Japan, and Ketac Universal, 3M,...
high variability in delivering the target torque is reported for friction-style mechanical torque limiting devices (f-s mtlds). the effect of aging (number of use) on the accuracy of these devices is not clear. the purpose of this study was to assess the effect of aging on the accuracy (±10% of the target torque) of f-s mtlds.fifteen new f-s mtlds and their appropriate drivers from three differ...
introduction: decrease in sleep quality is an age-related problem which appears in different features such as difficulty in sleeping, over sleeping and unusual behaviors during sleep. regarding the importance of sleep quality among older adults and also its effects on their quality of life and physical and mental status, the study was conducted to determine the status and quality of sleep in ol...
The purpose of this study was to investigate the influence aging on properties high-density polyethylene (HDPE) reinforced with multi-wall carbon nanotubes (MWCNTs). Nanocomposites were prepared at 0, 1, 3, and 5 wt%. long-term durability materials evaluated by thermo-oxidative test. Test bodies aged 110°C for up 10 weeks. nanocomposites characterized differential scanning calometry, thermograv...
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