Arc elasticity

Study of Stress Corrosion Cracking (SCC) in Alloys Jiang Jingxing 1. Introduction of Stress Corrosion Cracking Stress Corrosion Cracking (SCC) is the growth of cracks with a under the combined effects of a static stress and a specific chemical environment. All SCC failures involve a macroscopic brittle performance, and the ductility of the material is reduced. It is universally acknowledged that there is no single mechanism for stress corrosion cracking (Ford, 1984). Stress…

Facilitators of Active / Successful Aging According to Rowe (1998), factors contributing to successful aging are the individual’s lifestyles choices, their innate personality in how they approach life, and a positive attitude build in resilience. Consider resiliency, by definition—quality of life does not always relate to physical illness. When comparing similar socio-demographic factors, those factors relating to positive outcomes for resiliency were the ability to recognize the people who…

The aim of the Stress Concentration Experiment was to observe the stress concentration factor/feature for a set of mild steel specimens with various irregularities in each sample. These irregularities or “stress-raisers” include any notches and holes which vary in size (radius) and placement on the specimen (edge notches or holes) that may have an effect on the flow of stress. With the use of a Hounsfield 50 kN electrically operated tensile testing machine and 12 1-mm thick mild steel test…

3.1. Growth Kinetic of strain: The growth curve of strain in both of mediums is shown in Fig. 1 (Supplementary data). It was apparent that 2 hours after nucleation of culture, strain interred to logarithmic phase and continues for 10 h in MRS broth and 12 h in PPM medium. Sonication continued in logarithmic phase in 2 h intervals. 3.2. The effect of ultrasound on growth kinetic: The growth curves plotted for the two condition (with and without sonication) (Fig. 1), growth kinetic parameters…

The concentration of CDCL and CSER is obtained by solving equation (1) and (2) CX = A1 / ax1 ………………..... (1) CY = [A2 – (ax2 × CX)] / ay2…...(2) Where,  A1 and A2are absorbance of mixture at λ1 and λ2respectively.  ax1 and ax2 are absorptivities of DCL at λ1 and λ2, respectively,  ay1 and ay2 are absorptivities of SER at λ1 and λ2, respectively,  CXandCYare concentrations of DCL and SER, respectively. Concentration of DCL and SER in the powder mixture is found by using equation (3) and (4)…

As said by the three-time Olympic champion, Gail Devers, “Sometimes we fall, sometimes we stumble, but we can’t stay down. We can’t allow life to beat us down. Everything happens for a reason, and it builds character in us, and it tells us what we are about and how strong we really are when we didn’t think we could be that strong.” In the non-fiction book Unbroken by Laura Hillenbrand, Louie Zamperini’s unrelenting strength in the face of unimaginable horrors emulates the words spoken by…

Novels can do many things to the reader, they can also make them feel countless different ways. Some books make one aware of a problem they did not know about before. Or they can make them aware of the severity of a problem that they did not know was very serious. Novels can also inspire and give readers hope about something they thought was hopeless. At the same time it can ignite a passion in the reader that they did not know existed. Novels like Zoo, this is a book that can do all of those…

I see resilience as the ability to adapt to changing situations, not giving up when the going gets tough, rising above and beyond difficult circumstances, and the ability to cope or ‘bounce back’ when you surpass your own comfort zone (Youth Research Centre, Melbourne Graduate School of Education, p 14, n.d.). Spending a week out in the Nooramunga Marine and Coastal Park was a sure test of resilience, we often found ourselves in a position we weren’t accustomed to, whether that be using ‘dug’ to…

With resiliency becoming such a popular theme within the social work profession, it is becoming increasingly important for social workers and social service providers to find ways of improving their services. Not only by pinpointing resilience in clients but also finding ways of encouraging resilience in sub optimal situations, especially with children. As children face developmental delays when faced with significant risk and adversity, it is important that their psychological and physiological…

Small cracks, cavities, and notches in perfect material can dramatically reduce the tensile strength by producing stress concentration around them [ref]. We believe that in mammalian connective bone tissues, canaliculi, osteocyte lacunae, blood vessels and muscle insertions produce stress concentration to delay the progressive spread of minute cracks. Often times the cracks that are running against lacunae, for examples, stop on entering the lacunae, Hessian canals and blood vessels [ref]. We…