• Title/Summary/Keyword:

Search Result 91, Processing Time 0.022 seconds

Analysis of Chemical Components of Elephant-foot (Amorphophallus konjac. k) (구약감자 성분분석(成分分析))

  • Lee, Hee-Duck;Lee, Jung-Il
    • Korean Journal of Medicinal Crop Science
    • /
    • v.4 no.3
    • /
    • pp.261-264
    • /
    • 1996
  • This study was carried out to obtain a basic informations for the improvement of human health and the development of variety through analysis of inorganic compounds, contents of amino acids and saccharids to three elephant- foots (Amporphophallus Konjac. K) collected from Kumsan, Japan and China. Mannan as a carbohydrate of major component of an elephant-food was slightly high in Kumsan than that of Japan and China variety. Degree of viscosity of an elephant-foot depends upon the soluble free sugar contents and amino acid, contents of these free sugars were high in the order of Kumsan, China and Japan elephant-foot powder. Results of analysis of inorganic compounds to an elephant-foot used; Kumsan variety was shown to be high than those of China and Japan, especially. K, P and Fe in Kumsan variety were high, while Na and Ca were appeared to be high in China elephant-foot.

  • PDF

Evolutionary Neural Network based on Quantum Elephant Herding Algorithm for Modulation Recognition in Impulse Noise

  • Gao, Hongyuan;Wang, Shihao;Su, Yumeng;Sun, Helin;Zhang, Zhiwei
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.15 no.7
    • /
    • pp.2356-2376
    • /
    • 2021
  • In this paper, we proposed a novel modulation recognition method based on quantum elephant herding algorithm (QEHA) evolving neural network under impulse noise environment. We use the adaptive weight myriad filter to preprocess the received digital modulation signals which passing through the impulsive noise channel, and then the instantaneous characteristics and high order cumulant features of digital modulation signals are extracted as classification feature set, finally, the BP neural network (BPNN) model as a classifier for automatic digital modulation recognition. Besides, based on the elephant herding optimization (EHO) algorithm and quantum computing mechanism, we design a quantum elephant herding algorithm (QEHA) to optimize the initial thresholds and weights of the BPNN, which solves the problem that traditional BPNN is easy into local minimum values and poor robustness. The experimental results prove that the adaptive weight myriad filter we used can remove the impulsive noise effectively, and the proposed QEHA-BPNN classifier has better recognition performance than other conventional pattern recognition classifiers. Compared with other global optimization algorithms, the QEHA designed in this paper has a faster convergence speed and higher convergence accuracy. Furthermore, the effect of symbol shape has been considered, which can satisfy the need for engineering.

Single Stage Replacement of Entire Thoracic Aorta for Chronic Aortic Dissection (만성 대동맥 박리 환자에서 전 흉부 대동맥 동시 치환)

  • 최진호;박계현;전태국;이영탁;박표원
    • Journal of Chest Surgery
    • /
    • v.34 no.11
    • /
    • pp.865-869
    • /
    • 2001
  • Operations for extensive aortic aneurysm are generally performed as staged operations with or without elephant trunk technique. However, we must consider single stage replacement in cases that are unsuitable for elephant trunk technique. We report a case of successful sing1e stage replacement of the entire thoracic aorta from the aortic valve to the level of diaphragm. The patient was a 35-year-old male who had Marfanoid features and had previously undergone replacement of the ascending aorta for aortic dissection. He recovered without neurologic complication and was discharged on 29th day after the operation. .

  • PDF

Intestinal intussusception in elefant

  • K. Matsuda;L. Kolodzieyski;Lim, C-W;M-S. Seol;B-M. Rim
    • Proceedings of the Korean Society of Veterinary Pathology Conference
    • /
    • 2001.09a
    • /
    • pp.30-30
    • /
    • 2001
  • Five years old Asian male elephant (Elephas maximus), transported from Malaysia, had showed slight inappetence and mild diarrhea from begining of stay at the zoo, and died after three months clinical therapy. Necropsy of this elephant grossly demonstrated ileocecal intussusception as the cause of the death, coupled with purulent nephritis together and nephrolithiasis, mild liver degeneration, numerous subepiacrdial and subendocardial hemorrhages. Bacteriological culture was conducted from renal pelvis revealing Klebsiella pneumonia infection. Histological findings included diffuse chronic interstitial nephritis with numerous amount of lymphocytes and giant cells. This is a unique combination of pathological findings consisting of intestinal intussusception and purulent pyelonephritis in elephant. This is the first description of intestinal intussusception together with severe nephritis in elephant

  • PDF

Real-Time Classification, Visualization, and QoS Control of Elephant Flows in SDN (SDN에서 엘리펀트 플로우의 실시간 분류, 시각화 및 QoS 제어)

  • Muhammad, Afaq;Song, Wang-Cheol
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.42 no.3
    • /
    • pp.612-622
    • /
    • 2017
  • Long-lived flowed termed as elephant flows in data center networks have a tendency to consume a lot of bandwidth, leaving delay-sensitive short-lived flows referred to as mice flows choked behind them. This results in non-trivial delays for mice flows, eventually degrading application performance running on the network. Therefore, a datacenter network should be able to classify, detect, and visualize elephant flows as well as provide QoS guarantees in real-time. In this paper we aim to focus on: 1) a proposed framework for real-time detection and visualization of elephant flows in SDN using sFlow. This allows to examine elephant flows traversing a switch by double-clicking the switch node in the topology visualization UI; 2) an approach to guarantee QoS that is defined and administered by a SDN controller and specifications offered by OpenFlow. In the scope of this paper, we will focus on the use of rate-limiting (traffic-shaping) classification technique within an SDN network.

Exposures of Ultrafine Particles for Passengers of Elephant Vehicle in the Seoul Grand Park (서울대공원 코끼리 열차 특성에 따른 탑승자의 초극미세입자(Ultrafine Particles) 노출)

  • Joo, Song-Yi;Hwang, Ji-Hee;Ham, Seung-Hon;Lee, Ki-Young
    • Journal of Environmental Health Sciences
    • /
    • v.38 no.5
    • /
    • pp.393-397
    • /
    • 2012
  • Objectives: The objectives of this study were to measure passengers' exposure to ultrafine particles (UFP) and to determine effects of fuel, operating condition and position of seat. Method: UFP exposures in front and back seats of the Elephant vehicle in Seoul Grand Park were simultaneously measured by a condensation particle counter (P-Trak model 8525, TSI). The measurements were conducted 7 times with diesel-powered vehicle and 3 times with electricity vehicle in one day. The vehicle stopped at 3 locations along with 2.2 km of driving route. Results: UFP concentration in diesel-powered vehicle was significantly higher than electricity vehicle. At front seat of diesel-powered vehicle, average UFP exposure during stopping was significantly higher than during moving. When diesel-powered vehicle moved, UFP exposure in back seat was significantly higher than in front seat. Conclusions: Passengers in the diesel-powered Elephant vehicle could be exposed to high level of UFP. The UFP exposure was associated with operation condition and position of seat.

Finite element simulation for steel tubular members strengthened with FRP under compression

  • El-Kholy, Ahmed M.;Mourad, Sherif A.;Shaheen, Ayman A.;Mohamed, Yomna A.
    • Structural Engineering and Mechanics
    • /
    • v.72 no.5
    • /
    • pp.569-583
    • /
    • 2019
  • Tubular steel sections are widespread all over the world because of their strength and aesthetic appearance. Tubular steel members may exhibit local buckling such as elephant foot or overall buckling under extreme compression load. Recently, external bonding of fiber reinforced polymers (FRP) sheets for strengthening these members has been explored through experimental research. This paper presents three-dimensional nonlinear finite element analysis (FEA) to investigate the structural behavior of strengthening tubular steel members with FRP against local and overall buckling phenomena. Out-of-roundness and out-of-straightness imperfections were introduced to the numerical models to simulate the elephant foot and overall buckling, respectively. The nonlinear analysis preferences such as the integration scheme of the shell elements, the algorithm for solution of nonlinear equations, the loading procedure, the bisection limits for the load increments, and the convergence criteria were set, appropriately enough, to successfully track the sophisticated buckling deformations. The agreement between the results of both the presented FEA and the experimental research was evident. The FEA results demonstrated the power of the presented rigorous FEA in monitoring the plastic strain distribution and the buckling phenomena (initiation and propagation). Consequently, the buckling process was interpreted for each mode (elephant foot and overall) into three sequential stages. Furthermore, the influence of FRP layers on the nonlinear analysis preferences and the results was presented.

Comparison of Chemical Components among varieties of Elephant-food (Amorphophallus konjac, K.) (수집종긴의 구약감자 성분비교)

  • HeDuckLee
    • Korean Journal of Plant Resources
    • /
    • v.9 no.3
    • /
    • pp.218-223
    • /
    • 1996
  • This study was carried out to obtain a basic information for the improvement of human health and the development of variety through the analysis of inorganic compounds. contents of amino acids and polysaccarides on three elephant foods, Amorphophallus konjac, collected from Kumsan, Japan and China. The contents of mannan as a carbohydrate of a major component in an elephant food was slightly high in Kumsan than that of Japan and China variety. Degree of VIscosity of an elephant food depends upon the contents of soluble free sugars and amino acids contents of these free sugars were high in the order of Japan, China and Kumsan variety. The analytical results on inorganic compounds in an elephant food were shown as follows; The contents of potasium, phosphate and ferrin of Kumsan variety were shown to be higher than those of China and Japan, while sodium and caleium were appeared to be highter in China chip

  • PDF

Effect of Planting Density on Yield and Growth Characteristics of Elephant Garlic (재식거리가 코끼리마늘(Allium ampeloprasum L.)의 생육과 수량에 미치는 영향)

  • Youn, Cheol Ku;Kim, Ki Hyun;Ahn, Ki Su;Jaeng, Jae Hyun;Park, Young Uk;Kwon, Young Hee;Lee, Sang Yeong
    • Korean Journal of Plant Resources
    • /
    • v.28 no.4
    • /
    • pp.541-545
    • /
    • 2015
  • This study investigated the effect of planting density on growth and yield of elephant garlic. Three planting densities of 20 × 20, 20 × 15, and 20 × 10 ㎝ were tested with the furrow width fixed at 120 ㎝ for the evaluation of elephant galic growth and yield. The average date of emergence was middle and late November, requiring about 30 days for the all emergence. For the flowering, 221 days after sowing were required in all the treatments. Plant height and leaf growth were not significantly different according to the planting density. Flower stalk was shorter when planting density was narrow. The L/D ratio was decreased to form oval shape when planting density was narrow. The yield of elephant garlic was 1,811 ㎏ /10a in planting density 20 × 20 ㎝, 2,375 ㎏/10a in 20 × 15 ㎝, and 2,838 ㎏/10a in 20 × 10 ㎝ plot. The marketable garlic ratio was highest as 1,593 ㎏/10a in planting density of 20 × 15 ㎝.

Repair of Fractured Tusk in an Asian Elephant By Pulp Capping (치수충진술에 의한 아시아 코끼리의 상아골절 치료)

  • 황범태;권수완;이기환;정희경;신남식;최종호;권오경;이흥식
    • Journal of Veterinary Clinics
    • /
    • v.13 no.2
    • /
    • pp.208-211
    • /
    • 1996
  • The left tusk of Asian elephant (Elephas maximus) was splitted longitudinally and its middle portion avulsed by slip. The pulp was exposed and bled. A loosened tusk fragment continued to irritate its sulcus. We performed a partial pulpotomy and pulp capping. We filled the wide space between the loosened tusk fragment and the counterpart with zinc oxide eugenol and zine phophate cement but it was failed, and then we fastened the loosened tusk fragment to the counterpart by gauze and plaster. The ollsened tusk fragment grew to drop 100 days after the insult and main portion with pulp capping was healthy.

  • PDF