EXPERIMENTAL STUDY OF CONCRETE PERFORMANCE

This study was experimental in nature and conducted with the view to make comparison between two samples. The first sample consisted of concrete with rice husk ash mixed in it and the other sample was without such addition. The first test conducted to test the performance was simple measurements. The results show that for the sample without addition of rice husk ash, the density was 2355.97 and for included sample, the density was 2354.44 with insignificant differences (t-stat= 0.766, P>.05). For V-B test, the sample without addition of rice husk as was 8.34 and for include sample, it was 8.01. The differences for V-B for both samples were statistically insignificant (t-stat=1.431, P>.05). The slump test without for the sample without addition of rice husk was 12.75 and for included sample, it was 18.56. The difference was statistically significant (t-stat=2.455, P<.05). The compressive strength for excluded sample was 24.32 and for included sample was 20.01. The results were statistically insignificant (t-value= 1.13, P>.05). For flexural strength test, for excluded sample, the average score was 9.02 and for included sample, the average score was 9.19. The difference was statistically insignificant (t-stat=1.45, P>.05). Overall, the results lead to the conclusion that there are insignificant differences of addition of rice husk ash in concrete

How Artificial Intelligence and Virtual Reality Benefit the Elderly and Individuals with Disabilities

The growing and evolving use  of emerging technology including Artificial Intelligence (AI)  and Virtual Reality (VR),  has significantly impacted the lives of two specific groups—the elderly and the disabled.  This paper investigates potential reasons for this phenomenon.  Clearly, AI and VR Technology alters the everyday lives of people with disabilities and how they navigate the world.  Technological developments increasingly work to address the isolation that people with disabilities as well as the elderly experience for  they are often unable or limited in how they  engage with their communities.  This research paper outlines the way technology has improved  social communication, information distribution, and day-to-day living for those with disabilities and the elderly.Undoubtedly,  the internet has transformed social communication and interaction for most people.   socially isolated individuals with disabilities have gained exposure to social environments through social media.  Moreover, the broad range of information available on the internet  has increased access to resources such as government services, health services, and social services support. On a related point, assistive devices have enabled disabled people including many seniors to overcome motor, sensory, or cognitive difficulties that may have previously hindered them from performing daily tasks.  However, although AI and VR technology has been effectively integrated in the lives of those with disabilities, many such individuals lack access to commonplace technologies, like a personal computer.  This paper examines how  AI and VR technology has enhanced communication, information access, and everyday activities for the disabled and aging communities despite such socio-economic limitations

Multi-cultural, multi-course collaborative project: Learning outcomes and project impact

A multi-course collaborative project is an effective way to enhance student learning because it not only facilitates the development of social skills, but also provides students an opportunity to understand the importance of collaboration with people in diverse areas in the industry (Kim, LaFleur, & Schaeffer, 2008). A collaborative project in a multi-cultural setting enhances student learning by exposing students to other cultures and broadening their scope of knowledge and applications (Chen, Hsu, & Caropreso, 2006)

Acute post-cardiopulmonary bypass left atrial thrombosis after mitral valvuloplasty and left atrial thrombectomy

A patient with mitral stenosis and multiple left atrial thrombi underwent valvuloplasty and thrombectomy. While closing the sternum after completing the cardiopulmonary bypass, a new left atrial thrombus was detected by transesophageal echocardiography. We used heparin for the prevention of new thrombus formation and closed the wound after meticulous bleeding control. Three months later, there was no residual thrombus in the left atrium according to the echocardiographic study

Gap Analysis Between the Level of Heat Wave Adaptation Policy and Heat Wave Effects in South Korean Municipalities

This study aims to analyze the gap between the level of heat wave adaptation policies and heat wave effects in South Korean municipalities. First, the types of industries in municipalities were classified using factor analysis and cluster analysis. Second, the level of heat wave adaptation policy in the municipalities was assessed using a fuzzy analytic hierarchy process analysis. Third, the gap between the level of heat wave adaptation policy and the heat wave effect was analyzed. The results show that the heat wave adaptation policies were established in accordance with the heat wave effects to at least some degree. However, closer to the long-term future (2095), the policies have not sufficiently matched the level of heat wave effects. The proportion of municipalities with insufficient levels of heat wave adaptation policies against the heat wave effects was higher among urban-type municipalities. The analysis results suggest two policy implications. First, the heat wave adaptation policies of municipalities should be established through continuous feedback on the predictions of future heat wave effects. Second, urban-type municipalities should strengthen their planning authority and competence by securing a professional workforce and budgets for the establishment of heat wave adaptation policies

Real-time observations of TRIP-induced ultrahigh strain hardening in a dual-phase CrMnFeCoNi high-entropy alloy.

Strategies involving metastable phases have been the basis of the design of numerous alloys, yet research on metastable high-entropy alloys is still in its infancy. In dual-phase high-entropy alloys, the combination of local chemical environments and loading-induced crystal structure changes suggests a relationship between deformation mechanisms and chemical atomic distribution, which we examine in here in a Cantor-like Cr20Mn6Fe34Co34Ni6 alloy, comprising both face-centered cubic (fcc) and hexagonal closed packed (hcp) phases. We observe that partial dislocation activities result in stable three-dimensional stacking-fault networks. Additionally, the fraction of the stronger hcp phase progressively increases during plastic deformation by forming at the stacking-fault network boundaries in the fcc phase, serving as the major source of strain hardening. In this context, variations in local chemical composition promote a high density of Lomer-Cottrell locks, which facilitate the construction of the stacking-fault networks to provide nucleation sites for the hcp phase transformation