Past Issue
Volume 08 - Issue 03 (May - June 2024)
| Title: | A STUDY ON THE SPLIT HOPKINSON BAR TESTING IN COLD ENVIRONMENTS |
| Authors: | Frank Gronwald & Emily Asenath-Smith |
| Source: | International Journal of Latest Research in Engineering and Management, pp 01 - 68, Vol 08 - No. 03, 2024 |
| Abstract: | The split Hopkinson bar is a current method that is primarily used to determine the material properties of a specimen at very high strain rates. With this technique, the impact and blast resistance of materials can be assessed.The split Hopkinson bar name is often interchanged with the Kolsky bar but there is one important distinction between them. The Kolsky bar is used for compression and tension experiments while the split Hopkinson bar is just focused on testing compression material performance (Hong et al, 2016).The initial motivation to create the modern Hopkinson bar system stemmed from the desire to measure the pressure-time curves produced by a detonation or a bullet impact. Conventional load frames apply loads under quasi-static conditions with strain rates only up to a range between 10-4 to 0 s-1. Thus they have limited utility for impact scenarios. Ge et al (2017) found that split Hopkinson bars would produce valid data provided two conditions are met: 1) 1-D elastic wave theory is valid in pressure bars 2) Stress and strain rates within specimen are uniaxial and uniform. They made sure the first was met by both limiting the impact velocity to ensure pressure bars were elastically deformed and using proper length to diameter ratios for bars and striker to eliminate wave dispersion. The second condition was met by eliminating friction restraints and axial inertia and using lubricant. |
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| Title: | Climate Catastrophes: Analyzing the Impact of Changing Landscape of Yamuna Floodplains on Livelihood of Women |
| Authors: | Shweta Vaishnav, Poonam Saini, Aarti Grover |
| Source: | International Journal of Latest Research in Engineering and Management, pp 69 - 79, Vol 08 - No. 03, 2024 |
| Abstract: | Floodplains are vital ecosystems that provide natural flood control and support diverse wildlife in urban areas. Due to urbanization, pollution, and habitat destruction, their ecological integrity and resilience is compromised. In the context of climate change, the sudden inundations are a hurdle to social and economic growth of women from marginalized communities who depend on these resources for their livelihood and bear a disproportionate burden of these impacts. The recent flooding event of July 2023 in Delhi, has set the new HFL (Highest Flood Level) as 208.66 m in Yamuna River. The aim of this research is to analyze the situation of a recent flood and its impact on women living in low-lying areas of Yamuna floodplains to identify the issues related to their existence. The methods adopted for the study involved conducting a qualitative survey of women living in the flood-affected areas and mapping the land use land cover (LULC) in two stretches of floodplains to identify the impact of recurring floods on the agricultural communities due to unplanned development. The study highlighted that the various infrastructure projects have altered the terrain in floodplains of Yamuna River over the years that are responsible for changing course of the river and yearly floods in the area. The findings of the survey associated the changing climatic pattern in the region in the last 20 years with survival threats to the most vulnerable group i.e. women and cattle in these Urban agricultural societies. This study opens the path for future research to inform policy-makers to formulate stringent policies and regulations in order to control the unplanned development in the floodplains and building resilience to ecologically sensitive areas. |
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| Title: | Challenges and Strategies for Effective Spiritual and Moral Leadership in Seventh-day Adventist -run schools in Bulawayo province, Zimbabwe |
| Authors: | Yamukelani Humphrey Ngwenya, Musa Nyakora |
| Source: | International Journal of Latest Research in Engineering and Management, pp 80 - 85, Vol 08 - No. 03, 2024 |
| Abstract: | A few research studies have explored the challenges that impact spiritual and moral leadership and the strategies that can be implemented for effective pedagogy and learning. The objective of this study was to glean some insights into the challenges that impact spiritual and moral leadership in Seventh-day Adventists (SDA) and the strategies that can be implemented to resolve this. We used a qualitative interpretive research design to investigate the challenges of spiritual and moral leadership in SDA-run schools and the strategies that can be implemented for effective pedagogy and learning. Participants for this study were purposively sampled, and the data was gathered through semi-structured interviews transcribed verbatim and analyzed using thematic analysis. Twenty (20) administrators from four SDA-run schools were purposefully chosen for the study.The study findings indicated that contestations exist between church and government workers employed at the SDA-run schools over remuneration issues that compromise the unity of purpose that should characterize SDA-run schools. Additionally, there is no clear memorandum of understanding (MoU) between the government and the church concerning the administration of the schools resulting in a tussle for roles and responsibilities. Lastly, the study revealed the ineffectiveness of the school administration as some of the key school board members were detached from the schools and showed apathy in matters involving the conflict between the state and church policies. Strategies for the development of effective spiritual and moral school leadership were suggested which include the privatization of the church schools, the establishment of a church-run teacher training college, and the continued spiritual and moral leadership development of staff members. |
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