• Title/Summary/Keyword: central places

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Windproof ability of aerodynamic measures to improve the wind environment above a truss girder

  • Wang, Zewen;Tang, Haojun;Li, Yongle;Guo, Junjie;Liu, Zhanhui
    • Wind and Structures
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    • v.32 no.5
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    • pp.423-437
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    • 2021
  • Aerodynamic measures have been widely used for improving the flutter stability of long-span bridges, and this paper focuses their windproof ability to improve the wind environment for vehicles. The whole wind environment around a long-span bridge located in high altitude mountainous areas is first studied. The local wind environment above the deck is then focused by two perspectives. One is the windproof effects of aerodynamic measures, and the other is whether the bridge with aerodynamic measures meets the requirement of flutter stability after installing extra wind barriers in the future. Furthermore, the effects of different wind barriers are analyzed. Results show that aerodynamic measures exert potential effects on the local wind environment, as the vertical stabilizer obviously reduces wind velocities behind it while the closed central slot has limited effects. The suggested aerodynamic measures have the ability to offset the adverse effect of the wind barrier on the flutter stability of the bridge. Behind the wind barrier, wind velocities decrease in general, but in some places incoming flow has to pass through the deck with higher velocities due to the increase in blockage ratio. Further comparison shows that the wind barrier with four bars is optimal.

Economic Empowerment of Agro Tourism "Jawaunik" (Java Unique): A Case Study in Indonesia

  • NURLAELA, Siti;MURSITO, Bambang;SHODIQ, M. Fajar;HADI, Pramono;RAHMAWATI, Rahmawati
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.5
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    • pp.741-748
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    • 2021
  • The purpose of this study is to find out how to empower the community in developing Unique Javanese Agro Tourism in the Klaten regency, Central Java Indonesia. Community economic empowerment is carried out by 1) conservation-based development, namely the pattern of community development while maintaining the authenticity of ecosystems by seeking to preserve natural, historical, cultural, and recreational natural resources. Community development can be done in stages, that is, carried out before the area becomes an object of agro-tourism and after the area becomes an object of agro tourism, 2) Community empowerment in the development of unique Javanese agro-tourism can be done with the development of community-based agro-tourism, intended to pattern community development that places agrotourism as empowering farmers to obtain good value from agricultural products as well as from tourist visits; the dual effect of absorption of agricultural products by tourism businesses and developers of agro-tourism areas/regions; by the government as an area to develop agrotourism; synergy between communities; and the role of tourism institutions and agricultural institutions in fostering agro-tourism so that this can enhance the aesthetic value and beauty of nature.

Discoveries, Voiceovers, and Greek Poetry: the Colonization of Lands, Languages, and Literatures in James Joyce's Ulysses and Anne Carson's Autobiography of Red

  • Omnus, Wiebke
    • Journal of English Language & Literature
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    • v.56 no.6
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    • pp.1027-1045
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    • 2010
  • What does an Irish modernist have in common with a contemporary Canadian classicist? The present paper attempts an unlikely comparison to bring out previously unnoticed facets of meaning by analyzing James Joyce's Ulysses (1922) and Anne Carson's Autobiography of Red: A Novel in Verse (1998) together. While Joyce and Carson write at different times and in different places, I suggest that they are also remarkably similar. First, both of these authors can be said to have re-invented the genre of the novel in the two aforementioned works. Second, they both set themselves the task of re-writing a Greek text, in Joyce's case Homer's Odyssey, in Carson's case Stesichoros's Geryoneis, transferring it to their own present reality. The focus of the article is to read Ulysses and Autobiography of Red together in light of their engagement with colonialism. This concept is central to both novels, as literary critics have noted. However, rather than examining the concept in the traditional sense, I use it as a platform to examine the roles that sociolinguistic colonialism, and what I call literary colonialism, play in these two innovative and groundbreaking novels. Finally, I analyze the ways in which these authors position themselves against the tradition. Comparing works by Carson and Joyce allows me to arrive at conclusions that transcend their time and apply to humanity in general.

Electric Scooter Purchase Intentions: The Influence of Environmental Concern, Price Consciousness, and Social Norms

  • Yann-Jy Yang;Chih-Chien Wang
    • Journal of Information Technology Applications and Management
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    • v.30 no.5
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    • pp.21-40
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    • 2023
  • Scooters are a popular way to get around on your own in many places, such as Taiwan, India, Thailand, etc., because they are easy to move around in, small, and cheaper to buy than cars. On the other hand, traditional scooters that run on fossil fuels put some pollution into the air and add to problems like global warming and air pollution. Switching from scooters that run on fossil fuels to electric scooters can help clean up the air in cities with much pollution. To promote the use of electric scooters, it's important to know how consumers feel about them. The current study investigates consumers' purchase intentions for electric scooters. Based on the questionnaire survey results (n = 567), we found that consumers' environmental concerns, price consciousness, and perceived subjective norms are associated with electric scooter purchase intention. Consumers with price consciousness may choose fossil-fuel-powered scooters because they consider electric-powered scooters more costly, although environmentally friendly. The study gives researchers and practitioners a glimpse into consumers' environmental concerns and subjective norms for a sustainable product.

Location Analysis for Public Sector's Development of Mixed-Use Complex (입체복합개발을 위한 공공 입지여건 분석)

  • Yoon, Jeong-Joong;Lee, Duk-Bok
    • Land and Housing Review
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    • v.3 no.2
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    • pp.117-126
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    • 2012
  • The purpose of this paper is to analysis spatial locations for public sector's development of mixed-use complex. The results of analysis of location characteristics and public sector's participation conditions are as follows. The central commercial district of new town, surroundings of new railway station, and old town center are likely to be appropriate in the case of a functional mixed-use considering acceptable use in accord with mixed-use complex. Development potential is also high at places such as railway adjacent area in old town and relocation of downtown improper facilities including previous three cases. And development of various size such as lot, block and district can be applied at central commercial district of new town, center and subcenter of old town, surroundings of new railway station. The result of analysis of public sector's participation conditions is appropriate in central commercial district of new town by public sector, relocation of downtown improper facilities and old site of transferring public facilities. They can be contribute to grow up new town by public-private partnership and to improve urban circumstances and publicness by development old site coupled with new site of transferring public facilities.

The Characteristics of Dolmen Culture and Related Patterns during the End Phase in the Gyeongju Region (경주 지역 지석묘 문화의 특징과 종말기의 양상)

  • Lee, Soohong
    • Korean Journal of Heritage: History & Science
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    • v.53 no.4
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    • pp.216-233
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    • 2020
  • This study set out to review tomb culture in the Gyeongju region during the Bronze Age, and also examine the patterns of dolmens during their end phase. For these purposes, the study analyzed 18 tomb relics from the Bronze Age and nine from the early Iron Age. Gyeongju belongs to the Geomdan-ri cultural zone. Approximately 120 tombs from the Bronze Age have been excavated in the Gyeongju region. There are fewer tombs than dwellings in the region, which is a general characteristic of the Geomdan-ri cultural zone. Although the number of tombs is small, the detailed structure of the dead body is varied. During the Bronze Age, tombs in the Gyeongju region were characterized by more prolific construction of pit tombs, dolmens with boundaries, and stacked stone altars than were the cases in other areas. There is a great possibility that the pit tombs in the Gyeongju region were influenced by their counterparts in the northeastern parts of North Korea, given the spindle whorl artifacts buried at the Dongsan-ri sites. Dolmens with boundaries and stacked stone altars are usually distributed in the Songguk-ri cultural zone, and it is peculiar that instances of these are found in large numbers in the Gyeongju region as part of the Geomdanri cultural zone. Even in the early Iron Age, the building of dolmens with boundaries and stacked stone altars continued in the Gyeongju region under the influence of the Bronze Age. A new group of people moved into the area, and they crafted ring-rimmed pottery and built wooden coffin tombs. In the early Iron Age, new rituals performed in high places also appeared, and were likely to provide venues for memorial services for heavenly gods in town-center areas. The Hwacheon-ri Mt. 251-1 relic and the Jukdong-ri relic are ruins that exhibit the aspect of rituals performed in high places well. In these rituals performed in high places, a stacked stone altar was built with the same form as the dolmens with boundaries, and a similar rock to the cover stone of a dolmen was used. People continued to build and use dolmens with boundaries and stacked stone altars while sustaining the Bronze Age traditions, even into the early Iron Age, because the authority of dolmens was maintained. Some dolmens with boundaries and stacked stone altars, known as being Bronze Age in origin, would have continued to be used in ritual practices until the early Iron Age. Entering the latter half of the second century B.C., wooden coffin tombs began to propagate. This was the time when the southern provinces, including the Gyeongju region, were included in the East Asian network, with the spread of ironware culture and the arrival of artifacts from central China. Around this time, dolmen culture faded into history with a new era beginning in its place.

A Study on the Vegetation of the Present-day Potential Natural State of Water for Flood Plain Restoration in South Korea (홍수터복원을 위한 국내 현재잠재자연하천 식생에 대한 연구)

  • Kim, Hyea-Ju;Shin, Beom-Kyun;You, Young-Han;Kim, Chang-Hwan
    • Korean Journal of Environment and Ecology
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    • v.22 no.5
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    • pp.564-594
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    • 2008
  • For this study, which was conducted in summer from $2006{\sim}2007$, 25 places of stream area in Korea, which were not affected by human, were selected by considering variable environmental factors. Plant surveys were performed in five qaudrats per each place of stream area(stream length=about 1km) on the basis of Braun-Blanquet(1964) and in four belt(length=20m) per each place of stream area by using belt-transect method in order to study the vegetation of the present-day potential natural state of water. In the results of the plant survey, the common plant communities in the mid-northern district(latitude$37^{\circ}37.9^{\circ}N$) were Quercus mongolica community and Fraxinus rhynchophylla community(with Quercus mongolica and Quercus aliena), and the common plant communities in the southern district(latitude$35^{\circ}35.9^{\circ}N$) were Quercus serrata community, Styrax japonica community and Quercus variabilis community. The common plant communities in the central district(latitude$36^{\circ}36.9^{\circ}N$) were Quercus serrata community, Fraxinus rhynchophylla community and Quercus aliena community, which have the middle characteristic between mid-northern and southern district. Also, in the results of correlation analysis between environmental factors and appearance of plant species in the survey places of stream area, Eco region showed the most significant correlation, but for the plan to restore flood plain, it is necessary to clarify the vegetation of potential natural stream by increasing the number of study cases considering variable environmental factors, in the future.

Dynamic Behavior Character of Vessel Using DGPS and Motion Sensor (DGPS와 Motion Sensor를 이용한 선박 동적 거동특성)

  • Choi, Chul-Eung;Kim, Youn-Soo
    • Journal of Korean Society for Geospatial Information Science
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    • v.12 no.4 s.31
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    • pp.35-43
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    • 2004
  • Multibeam Echosounder system is the latest technology of a hydrographic survey utilized in producing an electronic nautical chart, obtaining a DEM with high precision, making a moving image by Swath surveying a wide area. As a fundamental study for improving the precision of MBES, we compared and analyzed measurements of DGPS and Motion sensor, and studied for the dynamic characteristics of vessel's movements. DGPS was installed in front and in the rear and on both side or the vessel and surveyed. The receiving precision of surveyed GPS results was obtained to the satisfactory extent that was possible to valuate the accuracy of Motion sensor as 0.0016$^{\circ}$ of the roll value and 0.0009$^{\circ}$ of the pitch value. The relationship between the values of heading, pitch, and roll in Motion sensor and the data of DGPS was proportional correlation. In addition, it is considered that deviations by elements like rapid turning and vibration of the vessel will be occurred, although the correlation of each deviation according to each amount or change is proportional. It is suitable that GPS installs in the central line of the vessel that is less affected than other places by waving because the amount of change in the tide level obtained from GPS survey and the value of heave are similar with the values taken by Motion sensor, and the velocity of GPS is different from installed places. The accuracy of the final result from MBES could be affected by the values of gyro and Motion sensor inputted to MBES processor because there were intervals of 15s and 13s of receiving time in gyro and Motion sensor respectively compared with the real-time measurements of DGPS.

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A Longitudinal Case Study of Late Babble and Early Speech in Southern Mandarin

  • Chen, Xiaoxiang
    • Cross-Cultural Studies
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    • v.20
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    • pp.5-27
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    • 2010
  • This paper studies the relation between canonical/variegated babble (CB/VB) and early speech in an infant acquiring Mandarin Chinese from 9 to 17 months. The infant was audio-and video-taped in her home almost every week. The data analyzed here come from 1,621 utterances extracted from 23 sessions ranging from 30 minutes to one hour, from age 00:09;07 to 01:05;27. The data was digitized, and segments from 23 sessions were transcribed in narrow IPA and coded for analysis. Babble was coded from age 00:09;07 to 01:00;00, and words were coded from 01:00;00 to 01:05;27, proto-words appeared at 11 months, and some babble was still present after 01:10;00. 3821 segments were counted in CB/VB utterances, plus the segments found in 899 word tokens. The data transcription was completed and checked by the author and was rechecked by two other researchers who majored in Chinese phonetics in order to ensure the reliability, we reached an agreement of 95.65%. Mandarin Chinese is phonetically very rich in consonants, especially affricates: it has aspirated and unaspirated stops in labial, alveolar, and velar places of articulation; affricates and fricatives in alveolar, retroflex, and palatal places; /f/; labial, alveolar, and velar nasals; a lateral;[h]; and labiovelar and palatal glides. In the child's pre-speech phonetic repertoire, 7 different consonants and 10 vowels were transcribed at 00:09;07. By 00:10;16, the number of phones was more than doubled (17 consonants, 25 vowels), but the rate of increase slowed after 11 months of age. The phones from babbling remained active throughout the child's early and subsequent speech. The rank order of the occurrence of the major class types for both CB and early speech was: stops, approximants, nasals, affricates, fricatives and lateral. As expected, unaspirated stops outnumbered aspirated stops, and front stops and nasals were more frequent than back sounds in both types of utterances. The fact that affricates outnumbered fricatives in the child's late babble indicates the pre-speech influence of the ambient language. The analysis of the data also showed that: 1) the phonetic characteristics of CB/VB and early meaningful speech are extremely similar. The similarities of CB/VB and speech prove that the two are deeply related; 2) The infant has demonstrated similar preferences for certain types of sounds in the two stages; 3) The infant's babbling was patterned at segmental level, and this regularity was similarly evident in the early speech of children. The three types being coronal plus front vowel; labial plus central and dorsal plus back vowel exhibited much overlap in the phonetic forms of CB/ VB and early speech. So the child's CB/ VB at this stage already shared the basic architecture, composition and representation of early speech. The evidence of similarity between CB/VB and early speech leaves no doubt that phones present in CB/VB are indeed precursors to early speech.

Characteristics of the Histological Structure of the Mandibular Barbels of Two Species of Catfish (Siluridae) from Korea (한국의 메기과 (Siluridae) 어류 2종의 상악 수염의 조직학적 특성)

  • Park, In-Seok;Kim, Chi-Hong
    • Korean Journal of Ichthyology
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    • v.17 no.1
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    • pp.36-42
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    • 2005
  • Histological observations on the barbels of catfish (Siluridae) in Korea are reported. The mandibular barbel of Far Eastern catfish, Silurus asotus, has epidermis and dermis surrounding an axial rod of cartilage. The stratified epidermis embodies mucous cells, club cells, and taste buds. The mucous cells, which are thin rims of basophilic cytoplasm, and the taste buds, which are basophilic, are located at the surface and the distal portion of the epidermis, respectively. The basement membrane lies between the epidermis and dermis except in places of dermal papillae. The dermis is made up of loose connective tissue fibers enclosing nerve bundles and blood vessels. The central region of cartilage is innermost and enclosed within muscle layers. The mandibular barbel of slender catfish, S. microdorsalis, has an identical structure to those of the Far Eastern catfish however, the percentage thickness of epidermis in the upper and lower parts of the barbel and the number of taste buds in the upper and middle parts of the barbel are different from those of Far Eastern catfish. This study shows that the mandibular barbels in Far Eastern catfish and slender catfish are of a stiff and flexible type.