• Title/Summary/Keyword: Shell body

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The Effect of Dietary Rice Irradiated by Far Infrared Rays on the Characteristics of Egg (원적외선 저장 쌀의 급여가 계란 특성에 미치는 영향)

  • Kwon O-Jun;Son Dong-Hwa;Choi Ung-Kyu;Kwak Dong-Ju;Jang Sang-Hee;Kim Dae-Gon
    • Food Science of Animal Resources
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    • v.24 no.3
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    • pp.277-282
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    • 2004
  • This study was conducted to investigate changes of egg characteristics according to feeding of far infrared irradiated rice. The feeding of rice irradiated by far infrared rays did not affect the body weight of laying hens, but egg weight (3.6∼7.6%), yolk weight (3.9∼30.2%) and thickness of egg shell (5.4∼13.5%) together with the rate of laying eggs (5.4%) were positively increased than normal rice.

DIRECT NUMERICAL SIMULATION OF PARTICLE SUSPENSIONS IN A POLYMERIC LIQUID (미세입자분산 고분자 현탁액의 3차원 직접수치해석)

  • Hwang, W.R.;Hulsen, M.A.;Meijer, H.E.H.
    • Journal of computational fluids engineering
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    • v.14 no.4
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    • pp.101-108
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    • 2009
  • We present a new finite-element scheme for direct numerical simulation of particle suspensions in simple shear flow of a viscoelastic fluid in 3D. The sliding tri-periodic representative cell concept has been combined with DEVSS/DG finite element scheme by introducing constraint equations along the domain boundary. Rigid body motion of the freely suspended particle is described by the rigid-shell description and implemented by Lagrangian multipliers on particle boundaries. We present the bulk rheology of suspensions through the numerical examples of single-, two- and many-particle problems, which represent a large number of such systems in simple shear flow. We report the steady bulk viscosity and the first normal stress coefficient, which show shear-thickening behavior for both properties.

A new finite element based on the strain approach with transverse shear effect

  • Himeur, Mohammed;Benmarce, Abdelaziz;Guenfoud, Mohamed
    • Structural Engineering and Mechanics
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    • v.49 no.6
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    • pp.793-810
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    • 2014
  • This research work deals with the development of a new Triangular finite element for the linear analysis of plate bending with transverse shear effect. It is developed in perspective to building shell elements. The displacements field of the element has been developed by the use of the strain-based approach and it is based on the assumed independent functions for the various components of strain insofar as it is allowed by the compatibility equations. Its formulation uses also concepts related to the fourth fictitious node, the static condensation and analytic integration. It is based on the assumptions of tick plate.s theory (Reissner-Mindlin theory). The element possesses three essential external degrees of freedom at each of the four nodes and satisfies the exact representation of the rigid body modes of displacements. As a result of this approach, a new bending plate finite element (Pep43) which is competitive, robust and efficient.

Preliminary Design of Movable Air-Turbo Ramjet Engine Intake

  • Lee, Kyung-Jae;Kang, Sang-Hun;Lee, Yang-Ji;Yang, Soo-Seok;Lee, Dae-Sung;Kwak, Jae-Su
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.03a
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    • pp.480-485
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    • 2008
  • In this study, two types of ramjet intake were designed for the flight condition of Mach number 2 and 5 and numerical analysis was performed. In order to widen the flight envelope range(Mach number $2{\sim}6$), movable intake concept was applied. The central body was designed so that the capture area ratio which is one of most important factors of ramjet intake design could be adjusted. And various types of cowl and movable insert part of shell were designed in order to control throat area which could increase total pressure recovery. The numerical results showed that the designed ramjet intake could be applied in various flights Mach number.

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Patho-Histologic Study of Mouse which Fed with Heavy Metal Containing Shell Fish (중금속 오염 패류를 먹이로 한 마우스 장기의 조직학적 변화에 관한 연구)

  • 소진탁;유일수;김재진
    • The Korean Journal of Malacology
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    • v.8 no.1
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    • pp.52-60
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    • 1992
  • Clams were collected from mouth part of Mangeong Gang(river) of which heavy metals were heavily contaminated. Scapharca subcrenata, one of the clams, were fed to mice for 1-2 months with regular food stuffs. Eventhough difference of body weight was recognized between the experimental group and normal diat group, accumulation of heavy metals examined, cadmium was found 1.16 $\mu\textrm{g}$/gm in liver, 3.31 $\mu\textrm{g}$/gm in kidney and 0.21 $\mu\textrm{g}$/gm in blood of experimental group at 60th day, whereas 0.14 $\mu\textrm{g}$/gm, 0.35$\mu\textrm{g}$/gm and 0$\mu\textrm{g}$/gm respectively in normal diet group ate tje same period. No specific histo pathological finding was found in brain and kidney, although slighr fatty change and focal necrosis were found in liver tissues of the experimental group in second month.

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Pseudotumor and Subsequent Implant Loosening as a Complication of Revision Total Hip Arthroplasty with Ceramic-on-Metal Bearing: A Case Report

  • Naik, Lokesh Gudda;Shon, Won Yong;Clarke, I.C.;Moon, Jun-Gyu;Mukund, Piyush;Kim, Sang-Min
    • Hip & pelvis
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    • v.30 no.4
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    • pp.276-281
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    • 2018
  • Pseudotumors are not uncommon complications after total hip arthroplasty (THA) and may occur due to differences in bearing surfaces of the head and the liner ranging from soft to hard articulation. The most common causes of pseudotumors are foreign-body reaction, hypersensitivity and wear debris. The spectrum of pseudotumor presentation following THA varies greatly-from completely asymptomatic to clear implant failure. We report a case of pseudo-tumor formation with acetabular cup aseptic loosening after revision ceramic-on-metal hip arthroplasty. The patient described herein underwent pseudotumor excision and re-revision complex arthroplasty using a trabecular metal shell and buttress with ceramic-on-polyethylene THA. Surgeons should be aware of the possibility of a pseudotumor when dealing with revisions to help prevent rapid progression of cup loosening and implant failure, and should intervene early to avoid complex arthroplasty procedures.

Morphological description and DNA barcode information of seven newly reported nudibranch species from Korea

  • Lee, Yucheol;Nam, Eunjung;Kil, Hyun-Jong;Park, Joong-Ki
    • Journal of Species Research
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    • v.11 no.2
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    • pp.102-107
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    • 2022
  • The order Nudibranchia Cuvier, 1817 is among the most colorful gastropod group that lacks an external shell and mantle cavity at their adult stage. They are widely found in the intertidal to subtidal zones of marine habitats worldwide. To date, a total of 58 species are known from Korean waters. In this study, we report seven nudibranch species that are newly reported from Korean waters and provide their color images of external body, morphological description, taxonomic remarks, and mtDNA cox1 barcode sequence information: Dendronotus primorjensis Martynov, Sanamyan & Korshunova, 2015; Doto japonica Odhner, 1936; Trinchesia ornata (Baba, 1937); Antiopella fusca (O'Donoghue, 1924); Cadlina paninae Korshunova, Fletcher, Picton, Lundin, Kashio, N. Sanamyan, K. Sanamyan, Padula, Schrodi & Martynov, 2020; Rostanga bifurcata Rudman & Avern, 1989; and Goniodoridella savignyi Pruvot-Fol, 1933.

Successful removal of a foreign body by endoscopic balloon dilatation at the colonic stricture

  • Im, Chang Jo;Na, Ji Hoon;Kim, Hyun Sik;Ha, Sung Sam;Lim, Yoo Li;Lee, Ji Hyeon;Choi, Hee Kyoung;Kim, Hee Man
    • Journal of Yeungnam Medical Science
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    • v.33 no.1
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    • pp.29-32
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    • 2016
  • Most ingested foreign bodies pass readily throughout intestinal tract if they reach the stomach. In some cases, foreign bodies may be impacted behind a luminal constriction but are rare in colon. Here, we report the case of a 59-year-old man who did laparoscopic anterior resection due to sigmoid colon cancer 2 years ago and ischemic colitis was repeated on the anastomosis site. He initially presented with symptoms of abdominal pain 3 months before and melena 1 day before admission. Abdomen computerized tomography showed a 3.2 cm segment of luminal narrowing of the proximal colon involving upstream foreign material stasis. Sigmoidoscopic approaches revealed near complete obstruction on the anal verge of 20 cm and scope passing failed. Balloon dilatations were done on the obstruction site four times all and a foreign body impacted above the obstruction site was removed by an alligator without any complications. The foreign body removed looks like plastic or a shell, about 20 mm in size.

A Study on the Characteristics of the Make-up on Corpses Depending on the Cause of Death in the American Drama CSI (미국드라마 CSI 에 나타난 사인(死因)에 따른 상처분장의 특성 연구)

  • Kim, Yu-Kyoung;Oh, In-Young
    • Journal of the Korean Society of Costume
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    • v.60 no.2
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    • pp.99-113
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    • 2010
  • The corpse make-up depending on the cause of death shown in CSI is the only evidence to solve a case, and shows the characteristics of the unique make-up on the corpse, according to the causes of death. There are many types of death causes such as strangulation, manslaughter, assassination and shooting, of which the strangulation is caused by strangling the neck with the hands or using a weapon and has characteristics of showing other external wounds with purple spots appearing on the body after death. This is a presentation of the corpse with a face of white, and the purple spots bruised on the neck. Manslaughter shows deep wounds caused by a stab or laceration using a weapon, and the material feeling of the wound that makes new skin tissue, is realistically presented with make-up of gooey blood. Assassination can be thought as manslaughter in disguise as an accidental death, which the causes can be due to electrocution, suffocation from oxygen deficiency and from excessive monoxide. The make-up is presented by realistically showing the surrounding fragments of the bullet shell, the blood running down, the size of the hole in the body made from the bullet, and shows the broken skin tissues. The shape of the bullet wound can be presented differently based on the body part where the bullet penetrated into, and the part where the bullet shot out through.

Influence of Water Temperature on Growth and Body Composition of Juvenile Abalone (Haliotis discus hannai) Fed an Artificial Formulated Diet and Macroalgae (Laminaria japonica) (배합사료 및 다시마 공급이 참전복 (Halioitis discus hannai) 치패의 성장 및 체조성에 미치는 수온의 영향)

  • KIM Chul Won;LIM Sang Gu;KIM Kwang Soo;BAEK Jae Min;PARK Chan Sun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.36 no.6
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    • pp.586-590
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    • 2003
  • The effect of water temperature and feed on the growth, survival, and body composition of juvenile abalone (Haliotis discus hannai) fed an artificial formulated diet and a macroalgae (Laminaria japonica) for 12 weeks was investigated. Rearing temperature was maintained at $13{\circ}C,\;16{\circ}C,\;19{\circ}C$ by heated and natural sea water temperatures $(7.5-10.2{\circ}C).$ Shell growth, weight gain, and survival rate of the abalone were affected by water temperature and diet (P<0.05). Survival and growth rate of the abalone fed with the formulated diet and Laminaria at $19{\circ}C$ was significantly higher than those of the abalone fed the formulated diet or Laminaria at $13{\circ}C,\;16{\circ}C,$ and ambient temperatures (P<0.05). Moisture, crude protein, crude lipid, and ash contents of the soft whole body were affected mainly by diet than rearing water temperature (P<0.05). These indicate that a mixture of formulated diet and macroalgae could improve the growth of the abalone independent of water temperature and heated water could improve the growth of abalone during the winter season.