• Title/Summary/Keyword: Development and Morphological characteristics

Search Result 487, Processing Time 0.034 seconds

Capturing the Underlying Structure of a 'Segment-line' City: Its Configurational Evolution and Functional Implications

  • Ling, Michelle Xiaohong
    • International Journal of High-Rise Buildings
    • /
    • v.6 no.2
    • /
    • pp.139-147
    • /
    • 2017
  • Analyzing morphological evolution over a long period of time is deemed an effective way to identify problems occurring in the process of urban development, in addition to achieving a fundamental understanding of socio-cultural changes and growth rooted from the context. As far as the urban morphology is concerned, Hong Kong is characterized by its unique high-density and compact layout patterns, which have aroused the interest of a number of authors in the urban design domain. Whilst an increasing number of redevelopment projects in Hong Kong were criticized for ignoring and destroying the old urban fabric, there is a need for research to investigate the origins and changes of various urban patterns and their implications for society. By employing the theories and techniques of space syntax, this paper accordingly provides a morphological analysis based on the Wanchai District - a 'Segment-line' city, which particularly epitomizes various urban grids of Hong Kong and may have different implications for functional aspects. By axial-mapping the urban layouts of five stages of growth since 1842 and subsequently investigating their spatial and functional transformation over the past 170 years, this paper identifies a series of spatial characteristics underlying different grid patterns, as well as achieves a precise understanding of their ever changing relationship. Based on these understandings, this paper intends to provide valuable reference and guidance for upcoming spatial development in Hong Kong and other regions.

Morphological and Chemical Characteristics of Mulberry(Morus) Fruit with Varietes (몇 가지 뽕품종에 따른 오디의 형태 및 화학적 성분의 특성)

  • Lee, Hui-Wan;Sin, Dong-Hwa;Lee, Wan-Ju
    • Journal of Sericultural and Entomological Science
    • /
    • v.40 no.1
    • /
    • pp.1-7
    • /
    • 1998
  • The morphological and chemical characteristics of leaves and fruits were observed in the three mulberry varieties, including Daeryugppong(Morus Lhou(Ser.) koidz), Kugsang 20(Morus Lhou(Ser.) koidz) and Cataneo(Morus alba L.). The leaf development in spring was earliest in Cataneo and latest in Kugsang. Content of total nitrogen and Mg in leaf was the highest in Cataneo while that of P2O5, K and Ca in Daeryukppong. Flowers started to bloom from May 8 and in full bloom around May 15. Mature fruits began to set from June 10 to 15 and lasted by July 10 in Cataneo. Average fruit weight was heaviest in Kugsang 20(3.52 g/fruit), while lowest in Daeryukppong(1.61 g/fruit). In fruits, glucose and fructose were the major sugars. Citric acid was the most abundant organic acid in three varieties with its average content from 0.8 to 0.14%. The major pigment in fruit was anthocyanin and its content varied among varieties. The stability of anthocyanin was evaluated under various pH, temperature, and sugar concentrations. Rutin was the major flavonol glycoside present in fruits and its content varied from 0.92 to 3.36 mg/gDW. Other flavonol glycosides such as isoquercitrin and quercitrin were also detected in fruit.

  • PDF

Morphological study on the adrenal gland of the lion(Panthera leo) (사자 부신의 형태학적 관찰)

  • Park, Joo-hee;Ku, Sae-kwang;Lee, Jae-hyun;Lee, Hyeung-sik
    • Korean Journal of Veterinary Research
    • /
    • v.37 no.3
    • /
    • pp.471-477
    • /
    • 1997
  • The morphological and immunohistochemical characteristics of the adrenal gland of the lion(Panthera leo) have been studied. In the light microscopic level, the adrenal gland was surrounded by thick capsules arid weak development of the zona glomerulosa was detected. Some medullary tissues were directly connected with capsules, however the adrenal gland in the lion 'demonstrated somewhat pseudolobulated appearance. Weakly or strongly stained chromogranin-immunoreactive cells were detected in medullary regions of the adrenal gland of the lion by immunohistochemistry, and weakly stained chromogranin-immunoreactive cells were detected more frequent than strongly stained ones.

  • PDF

A Study of Property on Trilateral Elevation in the Acute Angle Site

  • CHO, JAE-HEE
    • International Journal of Advanced Culture Technology
    • /
    • v.9 no.1
    • /
    • pp.22-27
    • /
    • 2021
  • Morphology of contemporary city streets is composed of overlapping infrastructures corresponding to the new street within the established organization, contemporary system, future circumstance, and population. As well, two overlaid organizations and morphological, historical, social and physical development lead to sharp acute algle(triangular) site, and the architecture in this site has a restriction on the availability of the internal space and the external design due to outside shape sharpness. We want to have a positive effect on the internal and external design of the architecture in the future by categorization of the shape and processing characteristics of the acute angle corner of the trilateral site. The characteristics and design categorization shown in this case study are as follows. Constitution a unique and independent form, lead streets and shape a exclusive image of the landscape, alleviate sharpness by configuring a acute angle point as a plane, use void to give reserve character, replace roundness for companionability to induce ambience in the road, embrace the characteristics of the site and create internal spaces and functions, emphasize the characteristics of each stairs, retain of uniqueness and highlight the characteristics of a vertical elements.

Classification of Korean Native Anemarrhena asphodeloides Bunge by Cluster Analysis (한국(韓國) 재래종(在來種) 지모(知母)의 특성비교(特性比較)에 따른 유연관계(類緣關係) 분석(分析))

  • Han, Seoung-Ho;Park, Sang-Il
    • Korean Journal of Medicinal Crop Science
    • /
    • v.5 no.4
    • /
    • pp.266-275
    • /
    • 1997
  • Anemarrhena asphodeloides BUNGE is one of important medicinal crops, which has been collected or/and cultivated for its rhizomes. The main medicinal ingredient of the A. asphodeloides Bunge rhizomes is a saponin, which is known to have medical values for diaphoresis, sedatives and biuresis. However, studies on cultural methods and breeding works on this plant have not been made in detail. To increase productivity and to improve quality of crops, it is important to collect cultivated and wild lines, to classify them based on morphological and genetic characteristics, and to select superior pure lines at first. Therefore, total 20 A. asphodeloides lines collected were cultivated at the fieldof Chungnam Provincial Administration of Rural Development in 1995 to study the agronomic characteristics and to classify them based on morphological characteristics. Characteristics related with reproductive organ such as the number of spikes per plant and peduncle length showed greater variations than vegetative organrelated characteristics such as leaf length and rhizome length based on the coefficient of variation. Vigorous shoot growth resulted in better development of reproductive organs such as peduncle length and number of spikes per plant. However, the development of spikes was negatively correlated with chlorophyll content. Characteristics of underground parts were more significantly correlated with spike characteristics than aerial part characteristics. A. asphodeloides tested in this study were classified into 2 groups (group A and group B) based on centroid linkage cluster analysis. Group A showed more vigorous shoot growth with more leaves and spikes per plant, longer peduncle length, thicker peduncle diameter and higher shoot dry weight than group B. Group A could be further classified into 2 sub-groups based on leaf size, spike length and peduncle diameter, while group B also could be classified based on number of leaves, number of spikes and shoot dry weight.

  • PDF

First report of anthracnose crown rot caused by Colletotrichum siamense on strawberry in Korea

  • Myeong Hyeon Nam;Myung Soo Park;Je hyeok Yoo;Byung Joo Lee;Jong Nam Lee
    • The Korean Journal of Mycology
    • /
    • v.50 no.3
    • /
    • pp.235-241
    • /
    • 2022
  • Anthracnose crown rot (ACR) has been observed in greenhouses during the nursery and harvest seasons in Gangwon Province, Korea. Infected plants showed black leaf spot, dark sunken pink conidial masses on petioles, wilting, and eventually death. Five isolates were obtained from the lesions of strawberry plants and were identified as a Colletotrichum gloeosporioides species complex based on their cultural and morphological characteristics. Multilocus sequence analysis of actin, calmodulin, chitin synthase, glyceraldehyde-3-phophate dehydrogenase genes, and internal transcribed spacer rDNA regions showed that the isolates formed a monophyletic group with the type strain of C. siamense. Pathogenicity tests were performed on the isolate, and Koch's postulates were performed to verify the relationship between Colletotrichum sp. and the strawberry plant variety Seolhyang. The isolate was pathogenic to strawberry plants, which exhibited typical ACR symptoms. Based on morphological characteristics, pathogenicity, and DNA sequence analyses, the fungus isolated in Korea was identified as C. siamense. This is first time C. siamense has been confirmed in ever-bearing strawberry varieties in Korea.

Leaf Spot and Stem Rot on Wilford Swallowwort Caused by Stemphylium lycopersici in Korea

  • Hong, Sung Kee;Choi, Hyo Won;Lee, Young Kee;Shim, Hong Sik;Lee, Sang Yeob
    • Mycobiology
    • /
    • v.40 no.4
    • /
    • pp.268-271
    • /
    • 2012
  • In June 2012, leaf spot and stem rot were observed on Wilford Swallowwort plants grown in Cheonan, Korea. Three fungal isolates obtained from the diseased leaves and stems were identified as Stemphylium lycopersici, based on morphological, cultural, and molecular characteristics and pathogenicity. This is the first report of leaf spot and stem rot on Wilford Swallowwort caused by S. lycopersici.

Morphological Characteristics and Life Cycle of Rice Skipper, Parnara guttata Bremer et Grey (Lepidoptera: Hesperiidae) (벼줄점팔랑나비의 형태적 특징 및 생활사)

  • 이기열;안기수;박성규;김태수;최용석
    • Korean journal of applied entomology
    • /
    • v.42 no.4
    • /
    • pp.323-327
    • /
    • 2003
  • Morphological characteristics and life cycle of Parnara guttata were studied from 2001 to 2002. Egg was hemisphere-shaped in pink. Larva was milky white or yellowish green color with 2.9-30.6 nm body length, depending on their developmental stages from 1 st to 5th instar. Pupa were grayish brown from 23.8 to 25.7 nm length, adults were yellowish brown color and body lengths were 17.4 nm and 16.2 nm and wing expanse lengths were 35.2 nm and 30.6 nm with female and male, respectively. At 25${\pm}$2$^{\circ}C$, each developmental periods was 4.5, 30.2, and 6.9 days with egg, larvae, and pupae, respectively. Also adult longevity were 10.1 for female, average number of egg was 205.5.

First Description of the Adult Scolecenchelys aoki (Ophichthidae, Anguilliformes) Collected from the South Sea of Korea, with Comments on the Synonym Scolecenchelys borealis (한국 남해에서 채집된 동해물뱀(Scolecenchelys aoki) 성어의 첫기재 및 Scolecenchelys borealis의 동종이명에 관한 검토)

  • Ji, Hwan-Sung;Kim, Maeng Jin;Kim, Jin-Koo
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.46 no.5
    • /
    • pp.589-593
    • /
    • 2013
  • Scolecenchelys borealis was first added to the Korean fish fauna based on one leptocephalus specimen (total length (TL) 59.2 mm) collected from Dokdo, in the East Sea. Recently, however, Scolecenchelys borealis has been treated as a junior synonym of Scolecenchelys aoki, necessitating review of the scientific name S. borealis. This study describes the morphological characteristics of S. aoki based on an adult specimen (TL 230.0 mm) collected from the sea south of Korea and compares its mitochondrial DNA 12S rRNA sequence with that of the S. borealis leptocephalus. The adult S. aoki is characterized by several morphological features: vertebral formula 59-55-135; preanal lateral pores 55; infraorbital pores two; teeth on upper jaw visible externally when the mouth is closed; the dorsal fin originates just behind the anus; both jaws and vomerine teeth are conical, arranged in two rows. An analysis of an 886-base paire sequence of the 12S rRNA showed that adult S. aoki was concordant with the S. borealis leptocephalus (sensu Ji et al., 2012), indicating that both are the same species.

Occurrence of Soybean Sleeping Blight Caused by Septogloeum sojae in Korea

  • Hong, Sung Kee;Choi, Hyo Won;Lee, Young Kee;Lee, Sang Yeob;Shim, Hong Sik
    • Mycobiology
    • /
    • v.40 no.4
    • /
    • pp.265-267
    • /
    • 2012
  • Sleeping blight was observed on soybean plants grown in Yanggu, Suwon and Geumsan from 2005 to 2011. Symptoms developed on stems and pods of affected soybean plants. Five fungal isolates were obtained from the diseased plants and identified as Septogloeum sojae based on their morphological, cultural and molecular characteristics. Pathogenicity of the fungus was confirmed on soybean plants by artificial inoculation. This is the first report of S. sojae causing sleeping blight in soybean plants in Korea.