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This study investigates the effects of varying exhaust gas recirculation (EGR) rates and temperatures on the combustion and emissions characteristics of a compression ignition engine fueled with hydrotreated vegetable oil (HVO). Understanding these effects is essential for optimizing renewable fuel applications in compression ignition engines, contributing to cleaner combustion, and supporting sustainable transportation initiatives. The experiments revealed that increasing the EGR rate to 20% not only reduces NOx emissions by approximately 25% but also increases smoke by around 15%, highlighting a trade-off between NOx and particulate matter control.
View Article and Find Full Text PDFModelling climate change and aridity for climate impact studies in semi-arid regions: The case of Giba basin, northern Ethiopia.
Heliyon
January 2025
Institute of Geo-information and Earth Observation Sciences, Mekelle University, P.O. Box 231, Mekelle, Ethiopia.
of long-term and future climate variability is crucial for impact assessment studies in drought-prone areas like the Giba basin in northern Ethiopia. This study has applied the statistical downscaling model (SDSM) and (De Martonne and Pinna combinative) aridity index methods to evaluate the climate system of the Giba basin. Historical data (1961-2019) from seven meteorological stations and global grided data were used for future climate projections (2020-2100) under the three emission scenarios (RCPs 2.
View Article and Find Full Text PDFMCU-i4, a mitochondrial Ca uniporter modulator, induces breast cancer BT474 cell death by enhancing glycolysis, ATP production and reactive oxygen species (ROS) burst.
Oncol Res
January 2025
Department of Physiology, China Medical University, Taichung, 404328, Taiwan.
Objectives: Mitochondrial Ca uniporter (MCU) provides a Ca influx pathway from the cytosol into the mitochondrial matrix and a moderate mitochondrial Ca rise stimulates ATP production and cell growth. MCU is highly expressed in various cancer cells including breast cancer cells, thereby increasing the capacity of mitochondrial Ca uptake, ATP production, and cancer cell proliferation. The objective of this study was to examine MCU inhibition as an anti-cancer mechanism.
View Article and Find Full Text PDFGelatin Multiwalled Carbon Nanotube Composite 3D Printed Semi Biological Mesh for Abdominal Hernia Treatment.
Chem Asian J
January 2025
Indian Institute of Technology Ropar, Biomedical Engineering, Department of Biomedical Engineering, IIT Ropar, Main Campus, India, 140001, Ropar, INDIA.
Hernia is characterized by the protrusion of organs or tissue through weakened areas in the abdominal cavity wall. A common treatment for hernia involves the implantation of a mesh which promotes the growth of new tissue around or within the implanted material in the damaged area. The mesh is typically made from synthetic materials like polypropylene.
View Article and Find Full Text PDFGlobal, regional, and national burden of esophageal cancer using the 2019 global burden of disease study.
Sci Rep
January 2025
Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China.
Esophageal cancer, with its aggressive nature and high mortality, poses diverse epidemiological challenges worldwide. Over the past three decades, esophageal cancer has exhibited a substantial global burden, marked by a significant increase in absolute numbers, contrasting with a decline in age-standardized metrics. Prevalence nearly doubled, reaching 0.
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