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Reading the intangible heritage in tangible Akan art
Kwame Amoah Labi 국립민속박물관 2009 International Journal of Intangible Heritage Vol.4 No.-
The intangible aspects of Akan art give it content that hasto be ‘read’ in order for it to fulfil its purpose and beenjoyed. Hence there is an inextricable link between theintangible and tangible parts of an artwork, with thetangible explaining the subject matter. It is theinterpretation, and the meanings given to Akan art thatmakes it function effectively as an integral part of Akanculture. In some situations, art functions as a form ofcoded language representing the Akan world view, values,proverbs and aesthetics, in other words, the intangibleaspects of their culture. Their art is thus made up of twocomponents, the invisible and visible parts. Akan artworksare not only works of aesthetic value, they provide culturaland historical evidence of the time and period in which theywere made. They reveal the technology, materials, beliefs,cultural practices and the circumstances under which theywere made as well as their relations with other culturesand peoples. They are a valid source of evidence for peoplestudying the Akan. Their art has the status of legibledocuments, the tangible aspects of their intangible culture. This article seeks to establish the link between the unseencomponents of Akan art and its visible, physicalcomponents, and to show how these dual butcomplementary aspects can be understood andappreciated.
Kwame Wilson Shamuyarira,Hussein Shimelis,Terence Tapera,Toi John Tsilo 한국작물학회 2019 Journal of crop science and biotechnology Vol.22 No.2
Genetic variation and heritability estimates in early generations are important in identifying superior families that can be targeted for genetic advancement. Early generation selection has been a successful tool to enhance selection efficiency in plant breeding programs. The aim of this study was to select and advance F3 families of wheat relative to their parents for drought tolerance using agronomic traits. Twelve parental lines and 66 newly-developed F3 families were evaluated using a 6x13 alpha-lattice design under drought-stressed and non-stressed conditions. Considerable genetic and phenotypic variation was observed for days to heading, plant height, spike length, kernels per spike, fresh biomass, and grain yield. Expected genetic gains were high for fresh biomass and grain yield. The families LM02xLM05, LM02xLM23, LM09xLM45, and LM13xLM45 were high yielding with high biomass values and are recommended for genetic advancement using single seed descent.
Kwame Osei-Assibey 한국국제경제학회 2015 International Economic Journal Vol.29 No.4
A survey of contemporary literature suggests that empirical studies on developing economies are few or almost non-existent. Engle and Patton (2001, What good is a volatility model. Quantitative Finance, 1, 237–245) as well as Poon (2005, A Practical Guide to Forecasting Financial Market Volatility. New Jersey: Wiley.) suggest that a good volatility model is one that utilizes the empirical regularities of financial market volatility (of which most were observed on industrialized economies markets). This paper uses exchange rate series from Ghana, Mozambique and Tanzania to show that; 1.they are not different from other financial markets as they exhibit most of the empirical regularities including volatility sign asymmetry, non-normal distribution and volatility clustering. It is however observed that the three exchange rate series are very volatile, with induced volatile shocks highly persistent and asymmetric, and extreme prices commonplace; 2.the ARCH technique (which has been well documented to capture these empirical regularities and produce good forecasts) generally produced a good fit to the three exchange rate series when compared with volatility forecasts generated using the EWMA technique. In the simple analysis of a day-ahead volatility forecast abilities of estimated models, it was observed that best fit does not necessarily ensure best forecast.
Kwame Osei-Assibey 한국국제경제학회 2017 International Economic Journal Vol.31 No.1
Although the empirical findings on the impact of exchange rate volatility on trade is diverse, the growing consensus in the literature appears to suggest that for developing economies, the theoretically expected negative relationship almost always exists. The paper takes a different approach to empirically assess this relationship by analysing the impact of exchange rate volatility independently on total trade, imports and exports. The intuition behind this approach is to assess exactly how exporters and importers are incentivised (differently or similarly) by exchange rate volatility costs. Whereas adequately risk-aversed Ghanaian exporters in the presence of higher exchange rate volatility and the absence of hedging facilities effectively compensated against exchange rate risk by increasing volume of exports, import decisions were to some extent (although not effectively) negatively affected by exchange rate volatility. The different responses by Ghanaian exporters and importers to higher exchange rate volatility costs are reflected in the relationship between volatility and total trade. The useful policy lessons and the challenges that the empirical evidence present are discussed.
Godwin Kwame Ahiale,오용준,Won-Doo Choi,Kwang-Bok Lee,Jae-Gyu Jung,Soo Woo Nam 대한금속·재료학회 2013 METALS AND MATERIALS International Vol.19 No.5
This study presents the microstructure and high cycle fatigue performance of lap shear joints of dual phase steel (DP590) welded using gas metal arc welding (GMAW) and plasma arc welding (PAW) processes. High cycle fatigue tests were conducted on single and double lap joints under a load ratio of 0.1 and a frequency of 20 Hz. In order to establish a basis for comparison, both weldments were fabricated to have the same weld depth in the plate thickness. The PAW specimens exhibited a higher fatigue life, a gentle S-N slope, and a higher fatigue limit than the GMAW specimens. The improvement in the fatigue life of the PAW specimens was primarily attributed to the geometry effect that exhibited lower and wider beads resulting in a lower stress concentration at the weld toe where cracks initiate and propagate. Furthermore,the microstructural constituents in the heat-affected zone (HAZ) of the PAW specimens contributed to the improvement. The higher volume fraction of acicular ferrite in the HAZ beneath the weld toe enhanced the PAW specimen’s resistance to fatigue crack growth. The double lap joints displayed a higher fatigue life than the single lap joints without changing the S-N slope.
Reconstruction of femoral length from fragmentary femora
Jubilant Kwame Abledu,Eric Bekoe Offei,Casmiel Kwabena Osabutey 대한해부학회 2016 Anatomy & Cell Biology Vol.49 No.3
The reconstruction of femoral length (FL) from fragmentary femora is an essential step in estimating stature from fragmentary skeletal remains in forensic investigations. While regression formulae for doing this have been suggested for several populations, such formulae have not been established for Ghanaian skeletal remains. This study, therefore, seeks to derive regression formulae for reconstruction of FL from fragmentary femora of skeletal samples obtained from Ghana. Six measurements (vertical head diameter, transverse head diameter, bicondylar breadth, epicondylar breadth, sub-trochanteric anterior-posterior diameter, and sub-trochanteric transverse diameter) were acquired from different anatomical portions of the femur and the relationship between each acquired measurement and FL was analyzed using linear regression. The results indicated significantly moderate-to-high correlations (r=0.580-0.818) between FL and each acquired measurement. The error estimates of the regression formulae were relatively low (i.e., standard error of estimate, 13.66-19.28 mm), suggesting that the discrepancies between actual and estimated stature were relatively low. Compared with other measurements, sub-trochanteric transverse diameter was the best estimate of FL. In the absence of a complete femur, the regression formulae based on the assessed measurements may be used to infer FL, from which stature can be estimated in forensic investigations.
Foster Kwame Kholi,Albert Mucci,Mimbo Shim(심민보),J. K. Min(민준기),M. Y Ha(하만영) 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11
Heat pipes, HP, are phase change devices with high conductivities compared to existing technologies of the same dimensions. However, for HP with multi-layer wicks, the layers and location of the dense wicks significantly affect the thermo-fluidics of the device. The influence of these factors on the overall performance of HP is presented for a standard mesh-screen wick HP with different layers - uniform and non-uniform wick layers. An in-house code assisted in predicting the limit of HP, which show increased heat transfer limit as the number of layers increase, especially for a mixture of layers of uniform and non-uniform wicks. The heat transfer improves in different inclinations when the dense wicks located in the core of the HP, in contact with the vapour flow. This arrangement restricts the entrainment of liquid from the wick surface. The results have shown that the performance of HP can easily be improved through proper wick arrangement.