• Title/Summary/Keyword: HFM

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Effects of taurine supplementation in low fish meal diets for red seabream (Pagrus major) in low water temperature season

  • Gunathilaka, G.L.B.E.;Kim, Min-Gi;Lee, Chorong;Shin, Jaehyeong;Lee, Bong-Joo;Lee, Kyeong-Jun
    • Fisheries and Aquatic Sciences
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    • v.22 no.10
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    • pp.23.1-23.10
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    • 2019
  • Background: Taurine is a conditional essential amino acid for fish. A study was conducted to investigate the compensating effect of supplemental taurine in diets for red seabream (Pagrus major) on impaired growth performance by fish meal (FM) replacement with soybean meal (SM) at low water temperature (14.15 ± 1.95 ℃). Methods: A FM-based diet was considered as a high FM diet and three other experimental diets were formulated to replace FM with SM by 20, 35, or 50% (HFM, SM20, SM35, or SM50, respectively) without taurine and other four diets were formulated by adding 1% taurine to the diets (HFM-T, SM20-T, SM35-T, or SM50-T, respectively). Triplicate groups of fish (108.9 ± 1.58 g/fish) were distributed into 24 polyvinyl circular tanks (215 L) with 20 fish per tank and fed one of the diets to satiation for 20 weeks. Results: Growth performance and feed utilization of red seabream were significantly improved by the dietary taurine supplementation. SM20-T and SM35-T diets increased fish growth that are comparable to HFM diet. Feed intake, feed conversion ratio, and protein efficiency ratio of fish fed SM20-T and SM35-T diets were not significantly different from those of HFM group. Dietary taurine supplementation in each FM replaced group numerically increased innate immunity of the fish. Lysozyme and superoxide dismutase activities were significantly decreased in fish fed SM35, SM50, and SM50-T diets compared to those of fish fed HFM diet while they were not significantly lower in SM20, SM20-T, SM35, and SM35-T groups. Glutathione peroxidase activity was significantly lower in fish group fed SM50 diet while SM50-T group did not significantly lower compared to that of HFM group. The relative expression level of hepatic IGF-1 mRNA was improved in fish fed taurine-supplemented diets compared to their respective SM diets. Conclusions: Growth performance and feed utilization of red seabream can be accelerated or restored by 1% taurine supplementation when they are fed high level of SM up to 35% in diets during low water temperature season.

Amelioration of metabolic disturbances and adipokine dysregulation by mugwort (Artemisia princeps P.) extract in high-fat diet-induced obese rats (쑥 (Artemisia princeps P.) 추출물이 고지방식이를 급여한 흰쥐의 대사장애 및 아디포카인 조절에 미치는 영향)

  • Kim, Yun-Hye;Park, Chung-Mu;Yoon, Gun-Ae
    • Journal of Nutrition and Health
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    • v.49 no.6
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    • pp.411-419
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    • 2016
  • Purpose: Dysregulation of adipokines caused by excess adipose tissue has been implicated in the development of obesity-related metabolic diseases. This study evaluated the effects of mugwort (Artemisia princeps Pampanini) ethanol extract on lipid metabolic changes, insulin resistance, adipokine balance, and body fat reduction in obese rats. Methods: Male Sprague-Dawley rats were fed either a control diet (NC), high-fat diet (HF, 40% kcal from fat), or high-fat diet with 1% mugwort extract (HFM) for 6 weeks. Results: Epididymal and retroperitoneal fat mass increased in the HF group compared with the NC group, and epididymal fat mass was reduced in the HFM group (p < 0.05). No difference was observed in serum levels of total cholesterol (TC) and high-density lipoprotein cholesterol (HDL-C) among the groups. However, triglyceride (TG), TG/HDL-C ratio, and TC/HDL-C ratio increased in the HF group and significantly decreased in the HFM group. TG and TC levels in the liver were significantly higher in the HF group, whereas these levels were significantly reduced in the HFM group. HF rats had lower insulin sensitivity as indicated by increased homeostasis model assessment of the insulin resistance (HOMA-IR) value. HOMA-IR values significantly decreased in the HFM group. Adiponectin levels were higher in NC rats, and their leptin and PAI-1 levels were lower. Relative balance of adipokines was reversed in the HF group, with lower adiponectin levels but higher leptin and PAI-1 levels. In contrast, the HFM group maintained balance of adiponectin/leptin and adiponectin/PAI-1 levels similar to NC by reducing leptin and PAI-1 levels. Conclusion: Overall data indicated that mugwort extract can be effective in alleviating metabolic dislipidemia, insulin resistance, and adipokine dysregulation induced by a high-fat diet.

Sequential treatment for a patient with hemifacial microsomia: 10 year-long term follow up

  • Seo, Jeong-Seok;Roh, Young-Chea;Song, Jae-Min;Song, Won-Wook;Seong, Hwa-Sik;Kim, Si-Yeob;Hwang, Dae-Seok;Kim, Uk-Kyu
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.37
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    • pp.3.1-3.7
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    • 2015
  • Hemifacial microsomia (HFM) is the most common craniofacial anomaly after cleft lip and cleft palate; this deformity primarily involves the facial skeleton and ear, with either underdevelopment or absence of both components. In patients with HFM, the management of the asymmetries requires a series of treatment phases that focus on their interception and correction, such as distraction osteogenesis or functional appliance treatment during growth and presurgical orthodontic treatment followed by mandibular and maxillary surgery. Satisfactory results were obtained in a 9-year-old girl with HFM who was treated with distraction osteogenesis. At the age of 19, genioplasty and mandible body augmentation with a porous polyethylene implant (PPE, $Medpor^{(R)}$, Porex) was sequentially performed for the functional and esthetic reconstruction of the face. We report a case of HFM with a review of the literature.

Experimental Study on Correction of Thermal Conductivity Obtained by Heat Flow Method using Commercial Guarded Hot Plate Method Apparatus (상용 보호열판법 열전도율 측정장비를 사용한 열유속법의 열전도율 값 보정에 대한 실험적 연구)

  • Lee, Jin-Sung;Kim, Kyung-Su;Kim, Yooil;Woo, Suck-Min;Yun, Seungjin
    • Journal of Ocean Engineering and Technology
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    • v.29 no.2
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    • pp.169-174
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    • 2015
  • This paper addresses experimental methodologies to measure the temperature-dependent thermal conductivity of the insulation materials popularly used for LNG cargo containment systems. The measurement techniques considered in this paper are the guarded hot plate (GHP) method and heat flow method (HFM). The former is based on the power supplied to the hot plate to keep the temperature constant, and the latter is based on a direct heat flux measurement. In order to improve the accuracy of the HFM, the thermal conductivity obtained by GHP was cross-compared with the HFM results, and a calibration factor was derived. It was found that the thermal conductivities measured by the two methods corresponded well under room temperature, but the deviation tended to slightly increase as the temperature decreased. Because of the easy installation and operability of HFM, it can be used to measure thermal conductivity in a large scale mock-up test or unit insulation panel test, where the GHP method is difficult to apply.

A Study on the Thermal Conductivity of Inorganic Insulation Properties According to the Binder Types (바인더 종류에 따른 무기단열재의 열전도 특성에 관한 연구)

  • Jeon, Chanki;Lee, Jaeseong;Chung, Hoon;Park, Jongpil;Shim, Jaeyeong
    • Journal of the Society of Disaster Information
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    • v.12 no.3
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    • pp.286-291
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    • 2016
  • In this study, we conducted about the manufacture of a non-combustible inorganic insulation by replacing the binder type for satisfaction of thermal conductivity for developing a lightweight inorganic insulation. Thermal conductivity was measured using a machine of HFM-436. We made samples are inorganic insulation by using SH-1(liquid) of S company and SH-2(solids). By Mixing Pearlite and SH-4(Liquid) was produced as insulation sample 2. Each was shaped into a binder and pearlite in the frame. After complete drying, thermal conductivity was measured by using HFM-435. The thermal conductivity was determined using two different binder. We analyzed the effect on thermal conductivity in binder.

Efficient Mixture IMM Algorithm for Speech Enhancement under Nonstationary Additive Colored Noise (시변가산유색잡음하의 음성 향상을 위한 효율적인 Mixture IMM 알고리즘)

  • 이기용;임재열
    • The Journal of the Acoustical Society of Korea
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    • v.18 no.8
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    • pp.42-47
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    • 1999
  • In this paper, a mixture interacting multiple model (MIMM) algorithm is proposed to enhance speech contaminated by additive nonstationary noise. In this approach, a mixture hidden filter model (HFM) is used to model the clean speech and the noise process is modeled by a single hidden filter. The MIMM algorithm, however. needs large computation time because it is a recursive method based on multiple Kalman filters with mixture HFM. Thereby, a computationally efficient implementation of the algorithm is developed by exploiting the structure of the Kalman filtering equation. The simulation results show that the proposed method offers performance gain compared to the previous results in [4,5] with slightly increased complexity.

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In-situ Measurement Technique for Thermal Performance of Building Wall Excluding Surface Heat Transfer Resistance (표면 열전달 저항이 배제된 건물 벽체 열성능 현장 측정 기법)

  • Kim, Seungchul;Kim, Sangbong;Nah, Hwanseon
    • KEPCO Journal on Electric Power and Energy
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    • v.6 no.2
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    • pp.151-155
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    • 2020
  • In this paper, a new experimental method to determine the thermal resistance of building wall was proposed by improving the heat flow method (HFM) based on the air-surface temperature ratio theory. This technique measures the thermal resistance of the wall excluding the inner and outer surface heat transfer resistance. Unlike conventional HFM, this value can be compared directly with the theoretical reference value. Its performance was verified using three mock-up structures with a theoretical thermal transmittance of 0.5, 3.3, and 0.18 W/㎡·K respectively. After measuring the variations in the temperature and heat transfer rate of the mock-ups for 383 hours, the thermal transmittances were determined to be 0.47, 3.10, and 0.18 W/㎡·K, which corresponded to errors of 5.2, 6.2 and 0.5%, respectively, compared to the theoretical values. It was concluded that this technique can directly compare the thermal resistance of the wall between the existent stage and initial stage after construction.

Complete transverse basilar cleft associated with hemifacial microsomia

  • Laphatrada Yurasakpong;Athikhun Suwannakhan;Joe Iwanaga;R. Shane Tubbs;Arada Chaiyamoon;Nutmethee Kruepunga;Somluk Asuvapongpatana;Thanwa Sudsang
    • Anatomy and Cell Biology
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    • v.57 no.3
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    • pp.473-475
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    • 2024
  • Transverse basilar cleft (TBC) is an extremely rare variation of the clivus or the basilar part of the occipital bone. In this report, a unilateral transverse basilar fissure was found at the clivus in a head computed tomography of an 18-yearold female patient diagnosed with hemifacial microsomia (HFM). Image analysis of this patient showed shortening of the ramus of the right mandible along with medial displacement of the right temporomandibular joint and hypoplastic right maxilla. In addition, observation of the clivus showed a cleft between the basioticum and basioccipital bones at the level of the pharyngeal tubercle on the right side. This cleft was identified as TBC. Clival variations, TBC included, attributed to HFM have never been reported. This report draws attention to the complex relationship between abnormal development of clivus and HFM syndrome, and sheds light on a possible genetic and molecular association between these two conditions.

Distribution and phenotypes of hemifacial microsomia and its association with other anomalies

  • Yang, Il-Hyung;Chung, Jee Hyeok;Yim, Sunjin;Cho, Il-Sik;Lim, Seung-Weon;Kim, Kikap;Kim, Sukwha;Choi, Jin-Young;Lee, Jong-Ho;Kim, Myung-Ji;Baek, Seung-Hak
    • The korean journal of orthodontics
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    • v.50 no.1
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    • pp.33-41
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    • 2020
  • Objective: To investigate the distribution and phenotypes of hemifacial microsomia (HFM) and its association with other anomalies. Methods: This study included 249 Korean patients with HFM, whose charts, photographs, radiographs, and/or computed tomography scans acquired during 1998-2018 were available from Seoul National University Hospital and Dental Hospital. Prevalence according to sex, side involvement, degree of mandibular deformity, compensatory growth of the mandibular body, and Angle's classification, and its association with other anomalies were statistically analyzed. Results: Prevalence was not different between male and female patients (55.0% vs. 45.0%, p > 0.05). Unilateral HFM (UHFM) was more prevalent than bilateral HFM (BHFM) (86.3% vs. 13.7%, p < 0.001). Although distribution of the Pruzansky-Kaban types differed significantly in patients with UHFM (I, 53.0%; IIa, 18.6%; IIb, 24.7%; III, 3.7%; p < 0.001), no difference was observed in occurrence between the right and left sides (52.6% vs. 47.4%, p > 0.05). Among patients with BHFM, prevalence of different Pruzansky-Kaban types on the right and left sides was greater than that of the same type on both sides (67.6% vs. 32.4%, p < 0.05). Despite hypoplasia of the condyle/ramus complex, compensatory growth of the mandibular body on the ipsilateral side occurred in 35 patients (14.1%). Class I and II molar relationships were more prevalent than Class III molar relationships (93.2% vs. 6.8%, p < 0.001). Forty-eight patients (19.3%) had other anomalies, with 50.0% and 14.4% in the BHFM and UHFM groups (p < 0.001). Conclusions: Patients with HFM require individualized diagnosis and treatment planning because of diverse phenotypes and associations with other anomalies.

Building Materials Thermal Conductivity Measurement and Correlation with Heat Flow Meter, Laser Flash Analysis and C-Therm TCi (HFM, LFA와 TCi를 이용한 건축 재료의 열전도율 측정과 상관관계 분석)

  • Cha, Jung-Hoon;Seo, Jung-Ki;Su-Min, Kim
    • 한국태양에너지학회:학술대회논문집
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    • 2011.04a
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    • pp.92-97
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    • 2011
  • Nowdays the most critical problem is global warming and the most important reason is the high emition of carbondioxide. 23% of the use of carbondioxide is used in building and decreasing the use of it is very important. One of the biggest factor that can decrease the use of energy is developing the heat conducting ratio of the materials we use in building. Heat conducting ratio is the important factor in the use of reducing energy comsumation. In this research, there are methods about how to measure the heat conducting ratio, and the existing the representing measuring method which is Heat Flow Meter HFM 436, Laser Flash Analysis and find out about the TCi of the new method C-Therm and compare the results.

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