• Acta Via Serica
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• 제5권2호
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• pp.25-49
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• 2020

This essay, based on an oral presentation, provides the non-specialist, with an evaluation of the Mongols' influence and China and, to a lesser extent, on Russia and the Middle East. Starting in the 1980s, specialists challenged the conventional wisdom about the Mongol Empire's almost entirely destructive influence on global history. They asserted that Mongols promoted vital economic, social, and cultural exchanges among civilizations. Chinggis Khan, Khubilai Khan, and other rulers supported trade, adopted policies of toleration toward foreign religions, and served as patrons of the arts, architecture, and the theater. Eurasian history starts with the Mongols. Exhibitions at the Metropolitan Museum of Art and the Los Angeles County Museum of Art confirmed that the Mongol era witnessed extraordinary developments in painting, ceramics, manuscript illustration, and textiles. To be sure, specialists did not ignore the destruction and killings that the Mongols engendered. This reevaluation has prompted both sophisticated analyses of the Mongols' legacy in Eurasian history. The Ming dynasty, the Mongols' successor in China, adopted some of the principles of Mongol military organization and tactics and were exposed to Tibetan Buddhism and Persian astronomy and medicine. The Mongols introduced agricultural techniques, porcelain, and artistic motifs to the Middle East, and supported the writing of histories. They also promoted Sufism in the Islamic world and influenced Russian government, trade, and art, among other impacts. Europeans became aware, via Marco Polo who traveled through the Mongols' domains, of Asian products, as well as technological, scientific, and philosophical innovations in the East and were motivated to find sea routes to South and East Asia.

• Architectural research
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• 제23권2호
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• pp.19-28
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• 2021

Reduction in competence makes older adults with dementia more sensitive to the influence of the physical environment. The aim of the longitudinal study was to examine whether residents with dementia in long-term facilities with variability in physical environmental characteristics in Vancouver (N= 11), Canada and Stockholm (N=13), Sweden had a difference in their quality of life (QoL). QoL was assessed using Dementia Care Mapping tool three times over one year for the reliability of data. The results of the study demonstrated that the residents with dementia living in a homelike and positive stimulating setting showed less withdrawn behaviors and a higher level of well-being compared to those in a large-scale institutional setting. This study also found that the residents living in a large-scale institutional environment spent more monotonous times than the other groups, which may be to provision of fewer structured activity programs or less social interaction with neighbors or staff members. Residents living in a large-scale institutional setting in Canada showed so far as five times more agitated/ distressed behaviors and twice more withdrawal compared to the ones living in a small-scale homelike setting in Sweden. The study supports that the large-scale institutional environment was considerably associated with levels of lower quality of life among the residents with dementia.

• 식물분류학회지
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• 제51권1호
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• pp.1-9
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• 2021

Symplocarpus koreanus (Araceae; Orontioideae) from Korea is described as new. Symplocarpus koreanus has long been considered to be conspecific with S. renifolius in Japan, but phylogenetic, morphological, and cytological data indicate its taxonomic distinction. Compared to S. renifolius, S. koreanus has a much smaller spathe and more spherical spadix with fewer, smaller flowers. Previous phylogenetic studies also suggested that S. koreanus is more closely related to nonthermogenic S. nipponicus than to S. renifolius in Japan. Like its nonthermogenic sister species, S. nipponicus, in Korea and Japan, S. koreanus is diploid (2n = 2x = 30), while S. renifolius in Japan is tetraploid (2n = 4x = 60). A detailed species description, geographical distribution, major morphological differences between the species and a dichotomous key to the species in eastern Asia are provided.

• Journal of the Korean Wood Science and Technology
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• 제31권6호
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• pp.55-59
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• 2003

The fixation and leaching characteristics of chromated copper arsenate (CCA Type C) and chromium- copper-fluoride-zinc (CCFZ) in domestic softwood (Japanese red pine, Korean pine, and Japanese larch) sapwood were investigated using the expressate method to follow chromium fixation and the American Wood-Preservers' Association (AWPA) leaching procedure to determine leaching properties after fixation. The rates of fixation were affected by preservative types; CCA was fixed much faster than CCFZ for all species evaluated. There were definite differences in the fixation rates of different species, with Korean pine requiring shorter to fix than the other species evaluated. Chromium fixation was greatly enhanced by elevated temperatures, and fixation time can be estimated according to fixation temperatures applied. The percentage of arsenic and zinc leached from domestic softwoods was relatively high compared to chromium and copper, indicating that there is still a relatively high unfixed arsenic and zinc components after complete chromium fixation in CCA-and CCFZ-treated samples, respectively.

• Acta Via Serica
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• 제7권2호
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• pp.65-88
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• 2022

With the expansion of the Russian Empire southward in the nineteenth century, connoisseurs, art historians, and scholars in Russia began to pay attention to carpet traditions in the new territories of the Russian Empire in Turkestan. In journals and other specialty publications, they underscored a need to establish claims to authority over the knowledge of the traditional craft. They were highly attuned to parallel accounts of carpet weaving from regions that had a longer history of research and collecting of carpets. In contrast to the situation in Western Europe or the United States, commentators bemoaned the fact that the public and even professed experts in Russia did not properly appreciate carpets from the Caucasus and Central Asia. These scholars articulated a need to establish authority over the carpet weaving traditions of Russia's colonial possessions, resulting in a push toward a serious study of carpet weaving as a legitimate field of inquiry. This paper uses published sources on early carpet scholarship from the late nineteenth and early twentieth centuries to examine how carpet weaving traditions in Central Asia entered an imperial discourse of knowledge. It argues that attempts to understand and categorize carpet weaving as an art form occurred along two fronts. Intellectuals and scholars attempted to wrest control over the locus of knowledge from experts in the West as well as from local weavers. In the process, they established a distinctly imperial vision of carpet weaving in contrast to competing imperial discourses and over traditional forms of knowledge.

• Structural Engineering and Mechanics
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• 제84권1호
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• pp.101-111
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• 2022

It is widely known that axially loaded fiber-reinforced polymer (FRP) confined concrete presents significant and enhanced mechanical properties with reference to the unconfined concrete. Therefore, to predict the mechanical behavior of FRP-confined concrete two quantities-peak strength and ultimate strain are required. Despite the significant advances, the determination of the ultimate strain of FRP-confined concrete is one of the most challenging problems to be resolved. This is often attributed to our persistence in desiring the conventional methods as the sole technique to examine this phenomenon and the complex nature of the ultimate strain of FRP-confined concrete. To bridge the research gap, this study adopted two machine learning (ML) techniques-artificial neural network (ANN) and Gaussian process regression (GPR)-to analyze observations obtained from 627 datasets of FRP-confined concrete circular and non-circular sections under axial loading test. Besides, the techniques are also used to predict the ultimate strain of FRP-confined concrete. Seven parameters namely width/diameter of the specimens, corner radius ratio, the strength of concrete, FRP elastic modulus, FRP thickness, FRP tensile rupture strain, and the axial strain of unconfined concrete-are the input parameters used to predict the ultimate strain of FRP-confined concrete. The results of the current study highlight the merit of using AI techniques in structural engineering applications given their extraordinary ability to comprehend multidimensional phenomena of FRP-confined concrete structures with ease, low computational cost, and high performance over the existing empirical models.

• 대순사상과 동아시아종교
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• 제2권1호
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• pp.13-29
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• 2022

Daesoon philosophy has been described as a quintessential Korean philosophy. Given the great difference between traditional Western and East Asian ways of thinking, how can such a quintessential Korean philosophy be explained to people who have no background in traditional East Asian thought? After all, the Daeson Jinrihoe way of approaching such core problems as how to make this world a better place is not only very different from the way the West has traditionally approached such problems, Daesoon Jinrihoe uses terminology which most Westerners are not very familiar with. Translation into Western languages such as English helps, but a conceptual gap remains because of the differences in the way key Daesoon Jinrihoe terms are understood in the West. As a first step toward overcoming that gap, I discuss three key teachings of Daesoon philosophy and how their translations into English need to be amplified so that people in the West who are not well versed in East Asian philosophy can gain a more accurate understanding of what those terms and phrases mean in their original language. The three items discussed here are the tenet "virtuous concordance of yin and yang," the Essential Attitude of sincerity, and the precept "do not deceive yourself."

• ALGAE
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• 제37권1호
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• pp.63-74
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• 2022

Perennial stipitate kelps are globally distributed and individual species can inhabit broad latitudinal ranges, expressing notably longevous persistence. Despite the foundational role kelps provide to their communities, little is known about the variability in persistence of the stipitate kelps at local spatial scales. We studied the population persistence of Eisenia arborea, a heat- and wave force-tolerant perennial stipitate kelp with a distributional range extending from British Columbia to south of the range limit of all other northeast Pacific kelps, in Baja California Sur, Mexico. Persistence characteristics for E. arborea among sites were compared and used to test the hypothesis that stand persistence varied at local spatial scales around Isla Natividad, a Pacific island off the Baja California peninsula with documented spatiotemporal environmental heterogeneity. Collected individuals around the island were "aged" using the previously validated age estimation technique of counting annual cortical dark rings. After detecting no significant differences among sites in the covariation between estimated ages for collected individuals and stipe length, we utilized in-situ population-level stipe length measurements to more rapidly predict age structures within six stands around the island. Predicted age structures, and associated stand densities, revealed persistence characteristics and density varied at local scales and a strong positive relationship existed between stand density and stand mean and maximum ages. We speculate that stands responded differently to deterministic influences (e.g., the 2014-2016 marine heatwave and / or competition with Macrocystis) resulting in heterogenous local persistence of this foundation species.

• 한국근적외분광분석학회:학술대회논문집
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• 한국근적외분광분석학회 2001년도 NIR-2001
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• pp.1151-1151
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• 2001

The international coffee trade is conducted almost exclusively with green coffee. The main coffee producing countries include Brazil, Columbia, Indonesia, Mexico and the Ivory Coast. About 99 % of the coffee grown throughout the world belong to two coffee plant varieties that are commonly known as Arabica and Robusta. The quality of green coffee can be assessed according to several ISO standards (1,2,3,4,5). However, no official international standards for the authenticity of green coffee have been issued. It is important to know the country of origin of the coffee for the purposes of fair international trade. The geographic origin of the coffee is often stated on the label of coffee products such as speciality roasted and soluble coffees. Near Infrared Spectroscopy (NIR) is an accepted technique for quantitative analysis of various parameters in routine QC analysis of food products. It would appear to be a promising candidate as a tool for identification of green coffee origin and numerous feasibility studies have appeared in the literature on its use for soluble, roasted and green coffee variety identification as well as identification of arabica or robusta coffees. NIR spectrophotometers when configured in the reflectance mode are able to perform a complete profile of the NIR spectrum on whole beans. The data can then be interpreted by discriminant chemometrics data analysis. This is the approach used in the present study.

• 중소기업연구
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• 제41권2호
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• pp.1-24
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• 2019

본 연구는 중소기업의 외부 정보 탐색전략이 기업의 혁신성과에 미치는 영향에 대해 파악하는 것을 목적으로 한다. 한국의 중소기업 3,398개를 대상으로 실증분석을 수행한 결과, 깊이 추구의 탐색전략과 범위 추구의 탐색전략은 상호 대체적 관계를 가지며, 이러한 대체적 관계는 기업이 협업경험을 보유할 때 약화되는 것으로 나타났다. 또한 두 유형의 탐색전략은 모두 기업의 혁신성과를 향상시켜 주지만, 깊이 추구 탐색전략이 범위 추구 탐색전략보다 상대적으로 더 큰 양의 영향을 미치는 것으로 나타났다. 그리고 범위 추구의 탐색전략을 실행하는 기업이 공식적인 정보보호 방안을 채택할 경우 탐색전략의 혁신성과에 대한 효과가 약화되는 것으로 나타났다.