• Title/Summary/Keyword: normal temperature

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The Comparative Study of Digital Infrared Thermal Image(DITI) on the Patients of Low Back Pain and Normal Group (요통환자와 정상인의 적외선 체열검사 비교 고찰)

  • Kim, Na-Yeon;Choi, Joo-Young;Kang, Jae-Hui;Lee, Hyun
    • Journal of Acupuncture Research
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    • v.27 no.5
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    • pp.89-96
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    • 2010
  • Objectives : This study is designed to evaluate the diagnostic significances of DITI on the patients of low back pain according to impression, symptoms and medical history. Methods : According to impression, symptoms and medical history, thermal changes of $BL_{23}$, $BL_{26}$, $BL_{40}$, $BL_{57}$, $GB_{31}$ and $BL_{60}$ were compared forty-eight low back pain patients and twenty-three normal group. Results : Surface temperature of $BL_{26}$ in case of L-spine HNP is significantly higher than normal group. Surface temperature of $BL_{26}$ in case of low back pain is significantly higher, $GB_{31}$ of radiating pain is significantly lower than normal group. Surface temperature of $BL_{26}$ in case of acute stage is significantly higher, $GB_{31}$ of chronic stage is significantly lower than normal group. Conclusions : Thermal changes of $BL_{26}$ and $GB_{31}$ on the patients of low back pain compared with normal group, according to impression, symptoms and medical history has significances.

Effects of driving style and bedding in pigs transported to slaughterhouse in different temperatures

  • Dongcheol Song;Jihwan Lee;Kangheung Kim;Minho Song;Hanjin Oh;Seyeon Chang;Jaewoo An;Sehyun Park;Kyeongho Jeon;Hyeunbum Kim;Jinho Cho
    • Journal of Animal Science and Technology
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    • v.65 no.4
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    • pp.878-889
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    • 2023
  • Animal welfare during transport became an largely issue because of increasing demand for improved animal welfare standards. Most studies on the animal welfare during transportation have concentrated on the atmosphere and the temperature of the truck compartments. Thus, the objective of study was to collect and quantify three axis acceleration and determine the effect of bedding for transporting pigs from farm to slaughterhouse. A total of 2,840 crossbred fattening pigs with a live weight of approximately 115 kg were used. They were raised in the same commercial farms and transported to the same commercial slaughterhouse. A 3×2×2 completely randomized factorial design was used to investigate effects of rubber type bedding (bedding or non-bedding) and two levels of driving style (aggressive or normal) in three different time periods with different outside temperatures. Air temperature treatments were as follow: high temperature ([HT] higher than 24℃); low temperature ([LT] lower than 10℃); normal temperature ([NT] 10℃ to 24℃). In our experiment, pigs transported under aggressive driving style showed lower (p < 0.05) pH and water holding capacity (WHC) than those transported under normal driving style. Pigs transported under normal driving style showed a lower percentage of drip loss (DL) (p < 0.05) than those transported with an aggressive driving style. Also, transported with bedding showed higher (p < 0.05) lying behavior but lower (p < 0.05) sitting behavior than those transported without bedding. Pigs transported under normal driving style showed lower (p < 0.05) cortisol level than those transported under aggressive driving style. In conclusion, aggressive driving style cause acute stress in pigs, while bedding helps alleviate acute stress in pigs during transportation in LT.

A Study on the Compression Characteristics of Bi-polymer O-rings (복합소재 O-링의 압축변형 특성에 관한 연구)

  • Kim, Do-Hyun;Kim, Chung-Kyun
    • Tribology and Lubricants
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    • v.21 no.4
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    • pp.171-176
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    • 2005
  • O-ring seal is an essential component in various mechanical apparatuses for a sealing of oil container and pressure vessels. This paper presents the sealing pressure and compressive contact behaviors of hi-polymer O-rings, which is made by an outer shell of FFKM material and an inner solid ring of FKM one. The contact normal pressure and its ratios are measured by experimental method with an automatic control system of the working temperature and analyzed numerically by using the non-linear Marc FEM program. The results show reasonably good agreements between the computed FEM results and measured ones when the operating temperature is kom normal temperature of $18^{\circ}C$ and a high temperature of $300^{\circ}C$ But the compared values between the computed and tested results show a little difference because of the increased temperature, which is related to the non-linear parameter of the O-ring material. Bi-polymer 0-ring shows a good contact normal stress and compression behavior for a given operation temperature and compression ratio.

Effect of Temperature on Anchovy Catch and Laver Production in the Eastern Part of the South Sea of Korea (멸치와 김 생산량 변동에 미치는 수온의 영향)

  • Lee, Chung-Il;Kim, Hyun-Ju
    • Journal of Environmental Science International
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    • v.16 no.8
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    • pp.897-906
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    • 2007
  • Effect of seawater temperature (temperature) on the production of anchovy, Engraulis japonica and laver, Porphyra tenera Kjellman, were investigated in the eastern part of South Sea of Korea (ESS). Bimonthly temperature data (Feb., Apr., Jun., Aug., Oct., Dec.) from 1980 to 2002 were collected from Korean Oceanographic Data Center (KODC) and monthly anchovy catch and laver production from 1980 to 2002 were used from published sources by the Ministry of Maritime Affairs & Fisheries, Korea. Effects of temperature on the two organisms were examined in four cases. In case of lower anchovy catch and higher laver production (1993), temperature during main spawning season of anchovy was about $0.2-0.6^{\circ}C$ lower than normal condition, and temperature during seed collecting season of laver in Namhaedo, Kojedo went down below $22.0^{\circ}C$. In case of higher anchovy catch and higher laver production (1995), optimum temperature for catch was formed in main fishing ground, temperature for seed collection was lower than $22.0^{\circ}C$, In case of lower anchovy catch and lower laver production (1996), temperature for spawning and catch was about $0.6-1.6^{\circ}C$ lower than normal condition, and temperature during seed collection in nursery was about $0.5-1.0^{\circ}C$ higher than optimum temperature for seed collection. In case of higher anchovy catch and lower laver production (1998), temperature during main fishing and spawning season was about $1.0-1.8^{\circ}C$ higher than normal condition, and temperature during laver seed collection in nursery was $1.5^{\circ}C$ higher than optimum temperature for seed collection.

An Experiment on the Structure Application of Cold Weather Concreting Using Anti-freeze Agent and Insulating Form (내한제 및 단열거푸집을 이용한 한중콘크리트의 구조체 적용 실험)

  • 김경민;손성운;김기철;오선교;한천구
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2002.05a
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    • pp.21-26
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    • 2002
  • This paper is intended to verify the efficiency of anti-freeze agent and insulating form by analyzing the temperature history and the property of strength-increase about the concrete that is placed in the insulating form and normal form, using new type anti-freeze agent in batcher plant According to the results about the temperature history, while the lowest temperature shows 3$^{\circ}C$ in case of normal concrete + euroform, 4$^{\circ}C$ in case of normal concrete + insulating form, it shows 6$^{\circ}C$ in anti-freeze agent + the insulating form, so the effect is most favorable. The compressive strength with mixing anti-freeze agent or not, shows high in order of standard curing, structure-managing and open air-placed specimen and the concrete mixing anti-freeze agent shows the highest compressive strength-increase.

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Axisymmetric deformation in transversely isotropic thermoelastic medium using new modified couple stress theory

  • Lata, Parveen;Kaur, Harpreet
    • Coupled systems mechanics
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    • v.8 no.6
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    • pp.501-522
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    • 2019
  • The present study is concerned with the thermoelastic interactions in a two dimensional axisymmetric problem in transversely isotropic thermoelastic solid using new modified couple stress theory without energy dissipation and with two temperatures. The Laplace and Hankel transforms have been employed to find the general solution to the field equations. Concentrated normal force, normal force over the circular region, concentrated thermal source and thermal source over the circular region have been taken to illustrate the application of the approach. The components of displacements, stress, couple stress and conductive temperature distribution are obtained in the transformed domain. The resulting quantities are obtained in the physical domain by using numerical inversion technique. The effect of two temperature varying by taking different values for the two temperature on the components of normal stress, tangential stress, conductive temperature and couple stress are depicted graphically.

A study of sweating reaction on somato type (체형별 발한 반응에 관한 연구)

  • 심부자
    • Proceedings of the ESK Conference
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    • 1997.10a
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    • pp.72-96
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    • 1997
  • To investigate the difference of sweating reaction on somato types. We measured total sweat rate, locl sweat rate, skin temperature, physiological reactions and psyschological reactions at $25{\pm}1^{\circ}C$ and $25{\pm}1^{\circ}C$ under laboratory conditions. Nine healthy adult females were divided into three somato types (slender(3), normal(3) and obese type(3)). The results were as follows; Total sweat rate was highest in obese type, and then comes normal type and slender type in order. Local sweat rate was highest in infrascapular area, and then breast, the back of the hand, upperarm, ant. leg, and ant. thigh in order in all somato types. Mean skin temperature was highest in slender type, and then normal type and obese type in order. Rectal temperature, blood pressure and pulse rate were highest in boese type. Psychological reactions were appeared 'hot' 'humid' 'sweat' as ambient temperature go up. And somato types make little difference in psychological reactions.

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A Study of Sweating Reaction by the Somato Types (체형별 발한 반응에 관한 연구)

  • Sim, Bu-Ja
    • Journal of the Ergonomics Society of Korea
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    • v.17 no.2
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    • pp.65-82
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    • 1998
  • To investigate the difference of sweating reaction by the somato types, we measured total sweat rate, local sweat rate, skin temperature, physiological reaction and psychological reaction at $25{\pm}1^{\circ}C$ and $29{\pm}1^{\circ}C$ under laboratory conditons. Nine healthy adult females were divided into three somato types : slender (3), normal (3) and obese (3). The results were as follows ; Total sweat rate was highest in the obese type, followed by the normal and slender types in order. Local sweat rate was highest in the infrascapular area, and then came breast, the back of the hand, upper ann, anterior leg, and anterior thigh in all somato types. Mean skin temperature was highest in the slender type, and followed the normal and obese types. Rectal temperature, blood pressure and pulse rate were highest in the obese type. Psychological reaction appeared 'hot', 'humid', 'sweaty' as ambient temperature went up. Somato types made little difference in psychological reaction.

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Thermal Analysis of a Spent Fuel Storage Cask under Normal and Off-Normal Conditions (사용후핵연료 저장용기의 정상 및 비정상조건에 대한 열해석)

  • Ju-Chan Lee;Kyung-Sik Bang;Ki-Seog Seo;Ho-Dong Kim;Byung-Il Choi;Heung-Young Lee
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.2 no.1
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    • pp.13-22
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    • 2004
  • This study presents the thermal analyses of a spent fuel dry storage cask under normal and off-normal conditions. The environmental temperature is assumed to be 15 $^{\circ}C$ under the normal condition. The off-normal condition has an environmental temperature of 38 $^{\circ}C$. An additional off-normal condition is considered as a partial blockage of the air inlet ducts. Two of the four air inlet ducts are assumed to be completely blocked. The significant thermal design feature of the storage cask is the air flow path used to remove the decay heat from the spent fuel. Natural circulation of the air inside the cask allows the concrete and fuel cladding temperatures to be maintained below the allowable values. The finite volume computational fluid dynamics code FLUENT was used for the thermal analysis. The maximum temperatures of the fuel rod and concrete overpack were lower than the allowable values under the normal and off-normal conditions.

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