National Kaohsiung Marine University (NKMU; Chinese: 國立高雄海洋科技大學) was a university in Nanzih District, Kaohsiung, Taiwan. The current total number of students is 8,000. In 2018, it has been merged into the "Nanzih Campus" and "Cijin Campus" of National Kaohsiung University of Science and Technology..
This study concurrently applies multiple cutting‐edge survey techniques, including those based on airborne and shipborne geophysical methods, to investigate buried, potentially archaeological targets in the Taijiang Waters of Taiwan. The Taijiang Waters are archaeologically significant because they served as essential shipping channels in the seventeenth century, when many ships sank in their waters. However, conventional archaeological surveying methods are not applicable due to rapid morphological changes, river currents and poor water visibility. Through integrated analysis of various geophysical data, seven suspected underwater cultural heritage (UCH) targets were identified at burial depths ranging from 0.3 to 5.1 m below the riverbed, with approximate lengths ranging from 1 to 10 m. By comparing the geophysical results with historical records and the regional sedimentation rate of 0.2–0.4 cm/year, inferred from geological dating, our results suggest that the suspected UCH targets are possibly linked to the Dutch East India Company shipwrecks, including the vessels Maarssen , Koudekerke , Valk and Immenhorn , and therefore warrant further archaeological investigation.
This study investigated the ozone formation mechanism and air mass trajectory via simultaneous air quality sampling around the coastal region of urban Kaohsiung. Vertical concentration profiles of O3 and its precursors (NOx and VOCs) were sampled and measured at inland and offshore sites during eight intensive sampling periods. The intensive sampling periods were divided into three categories based on meteorological condition: the sea-land breeze period, the northeastern monsoon period, and the mixed period. Vertical profile results showed that the stratification of O3 was commonly observed at 40 out of 64 sampling sites accounting for 62.5
This study described the mass distribution of metals and the crystalline characteristics of slag during the vitrification of incinerator fly ash. The fly ash, mainly composed of Ca (180,000 mg/kg), Si (25,500 mg/kg), Pb (19900 mg/kg), and Zn (14,400 mg/kg), was vitrified with cullet at a basicity of 0.921 in an electric heating furnace. After vitrification, metals with low boiling points (Cd, Pb, and Zn) vaporized into flue gas as particulate phase. High levels of Pb (315,000 mg/kg) and Zn (226,000 mg/kg) made the particulate phase worth reclaiming. No ingot formed due to lack of ingot forming metals, and thus metals with high boiling points mainly stayed in the slag. After being identified by X-ray diffractometer (XRD) analysis, the major crystalline phases of the slag were found to be Ca2SiO4 and CaSiO3, which coincided with the results of scanning electron microscopy (SEM). The results of the toxicity characteristics leaching procedure (TCLP) suggest that recycling the slag could be taken into consideration. The overall results indicate that vitrification is a promising technology that is able to transform incinerator fly ash into stable slag, reduce secondary environmental pollution, and transform valuable metals (Pb and Zn) in a recoverable form.
Diatoms, with their complex cellular architecture, have been recognized as a source of limitless potential. These microbes are common in freshwater and marine habitats and are essential for primary production and carbon sequestration. They are excellent at utilizing nutrients, providing a sustainable method of treating wastewater while also producing biomass rich in beneficial substances like vitamins, carotenoids, polysaccharides, lipids, omega-3 fatty acids, pigments, and novel bioactive molecules. Additionally, they are highly efficient organisms that can be employed to monitor the environment by acting as trustworthy indicators of water quality. This comprehensive review explores the multifaceted applications of diatoms in a variety of fields, such as bioremediation, aquaculture, value-added products, and other applications. The review set out on a path towards greener, more sustainable methods amicable to both industry and the environment by utilizing theenormous diverse biotechnological potentials of diatoms.
Abstract This study examines the impact of the Russia-Ukraine war (RUW) on the dynamic of TAIEX options' risk-return profile. Since the outbreak of the war on February 24, 2022, global economic sanctions have disrupted the world economy. Soaring energy and food prices and supply shortages have suppressed global economic growth, leading to rising inflation. Financial markets have reacted to the shocks caused by this war, thus intensifying the volatility of options markets. This study utilizes Hsu's (2013) option return models to investigate the impacts of how the war influences the TAIEX options' risk-return profile, including PDFs, profitability, and expected returns. The contributions of this paper are two-fold: It is the first paper on the (RUW) on the options markets; additionally, we demonstrate theoretically and empirically that the normality assumption of simple arithmetic returns is acceptable, making the Hsu's (2013) option return models more robust. The results indicate that the war has significantly affected and altered the PDFs of option returns, expected option returns, and volatility after the war. However, both theoretically and empirically shows that, despite the challenges posed by the war, put options trading during this period has been profitable. Keywords: Russo-Ukrainian War, TAIEX options, Option return model, Risk/Return Profile.
