• Title/Summary/Keyword: Frozen System Analysis

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A Systematic Review and Meta-Analysis of Herbal Medicine for Frozen Shoulder (동결견의 한약 치료에 대한 체계적 문헌고찰 및 메타분석)

  • Oh, Tae-Young;Kim, Yeon-Hee;Oh, Eun-Mi;Hong, Su-Min;Ha, Hyun-Ju;Lee, Eun-Jung;Oh, Min-Seok
    • Journal of Korean Medicine Rehabilitation
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    • v.29 no.3
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    • pp.15-33
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    • 2019
  • Objectives The objective of this study is to provide the evidence of the effectivness of herbal medicine for frozen shoulder. Methods 2 Korean medical on-line databases (Oriental Medicine Advanced Searching Integrated System, Korean Traditional Knowledge), and 3 foreign databases (Pubmed, Cochrane library, China National Knowledge Infrastructure) were searched to find articles concerning herbal medicine for frozen shoulder. We selected randomized controlled trials (RCTs). Several repeated articles and those not relevant to the topic were excluded, as well as review articles and commentaries. The methodological quality of RCTs were evaluated using the Cochrane risk of bias tool and meta-analyes were perfomed. Results Total 474 studies were founded and 22 RCTs were selected for systematic review. Efficiency rate was used as the primary evaluation method. Almost studies reported that herbal medicine has significant effect on pain reduction, increasing shoulder function on frozen shoulder. 3 studies comparing herbal medicine and chuna with chuna and 3 studies comparing herbal medicine with ibuprofen were included in the meta-analysis. At herbal medicine and chuna with chuna meta-analysis, it showed positive results of herbal medicine for efficiency rate (risk ratio: 1.18, 95% confidence interval: 1.09-1.27, p<0.0001). At herbal medicine with ibuprofen medta-analysis, it showed positive results of herbal medicine for efficiency rate (risk ratio: 1.15, 95% confidence interval: 1.05-1.27, p=0.003). Conclusions The studies showed that herbal medicine can significantly effective on frozen shoulder. However, the risk of bias in RCTs were evaluated as uncertain. In the future, further well-designed RCTs are needed to prove the effectiveness of herbal medicine for frozen shoulder and reduce the risk of bias.

Motional kinematics of Frozen-thawed Korean native cattle semen use of computer aided semen analysis(CASA) system (컴퓨터 정액자동분석에 의한 동결융해 한우 정액의 운동특성 연구)

  • Lee, Kang-nam;Lee, Byeong-chun;Kim, Jung-tae;Park, Jong-im;Shin, Tae-young;Hwang, Woo-suk
    • Korean Journal of Veterinary Research
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    • v.38 no.4
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    • pp.898-908
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    • 1998
  • The aim of this experiments were to assess the time-interval change of motional characteristics in frozen-thawed semen of Korean native cattle (KNC) by using computer aided semen analysis (CASA) technology. Twenty-six KNC frozen semen straws were obtained from Korean KNC improvement department, livestock improvement main division, national livestock cooperatives federation in Korea. Specimens were allowed to thaw at $37^{\circ}C$ for 30 sec in water bath. Semen analysis was performed on semen image analysis system (SIAS, Medical supply, Korea) adjusted to the gate settings and used the semen droplet ($5{\mu}l$) placed on Makler counting chamber (Sefi medical instrument, Israel) prewarmed at $37^{\circ}C$. The same person used the same micropipette to fill the Makler counting chamber. A total of 150 or more of sperms were analysed in each specimen by a single trained person by scanning at least 5 to 10 fields. The measurement parameters in SIAS were as follows ; frame rate = 30 frames per sec, image capture = 1 sec, minimum motile speed = $10{\mu}m/s$, maximum countable sperm number = 400. Statistical analysis was done by Student t-test with use of the Sigma plot program on a IBM personal computer. The dancemean(DNM) and hyperactivated sperm(HYP) of frozen-thawed KNC semen kinematics were significantly decreased(p < 0.05) after 10 min of incubation at $37^{\circ}C$ water bath. But, wobble(WOB) of same sample semen was significantly increased(p < 0.05) after 10 min of incubation and significantly decrease(p < 0.05) after 60 min of same incubation. And, after 30 mim of incubation, significantly differences were found most of motion kinematics, motifity(MOT), curvilinear velocity(VCL), straight line velocity(VSL), average path velocity(VAP), amplitude of lateral head displacement(ALH), beat cross frequency(BCF), mean angular displacement(MAD), dance(DNC), on same sample semen. The DNM of KNC semen sample was variable kinematics after 30 min of incubation. Also, the linearity(LIN) and straightness(STR) was significantly decreased(p < 0.05) from 60 min of incubation. In conclusion, the AI within 30 min after thawing of frozen semen can be an effective method for obtaining high fertility rate in KNC reproductive program.

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Effect of Sperm Activators on Sperm Penetration of Hanwoo Oocytes Following In Vitro Insemination I. Effects of Sperm Activators on Motility and Viability of Frozen-thawed Hanwoo Sperm (정자활성물질의 첨가가 한우난자의 체외수정율에 미치는 영향 I. 동결-융해 한우정자의 운동성과 생존성에 미치는 영향)

  • 이병천;김정태;김계성;황우석
    • Journal of Embryo Transfer
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    • v.15 no.1
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    • pp.85-94
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    • 2000
  • These experiments were conducted to examine the effects of theophylline, pentoxifylline and heparin on frozen-thawed Hanwoo sperm for enhancing motility and viability of sperm. Frozen-thawed semen collected from one bull was treated in TALP(tyrode-albuminlactate-pyruvate) containing varous concentrations of theophylline and pentoxifylline. After incubated at 5% CO2 in air atmosphere for 6 hours, the motility of sperm after the treatments was characterized by CASA(computer aided semen analysis) system. When monitored notility(MOT) and curvilinear velocity(VCL), theophylline and pentoxifylline exerted their optimal action at the concentration of 30 mM and 3 mM, respectively. No difference of sperm motility was observed when the sperm was treated with both substances compared with a single treatment of each substance. Comparison was then made for evaluating the effect of theophylline and / or pentoxiophylline on the motility and viability of significant treatment effects of each substance, high MOT and VCL values were detected in sperm treated with theophylline. In the case of sperm viability examined by an eosin-nigrosin staining, however, a significant decrease was found after the combined treatment of theophylline+pentoxyphilline than after the treatment with heparin alone or no treatment(P<0.05). In conclusion, theophylline, pentoxiphylline or heparin can be used for enhancing the motional characteristics and viability of frozen thawed Hanwoo semen. Considering characteristics of these substances, theophyline may be useful in the artificial insemination system, which requires vigorous sperm motility. While, heparin supporting sperm viability in vitro can be effectively used for improving in vitro-fertilization system.

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A Factor Analysis on the Value System of Convenience Foods by Korean College Students (한국 대학생의 편의식품에 대한 가치 구조 평가에 대한 요인 분석)

  • 문수재;윤혜준;김정현;이양자
    • Korean journal of food and cookery science
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    • v.15 no.4
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    • pp.327-337
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    • 1999
  • This study was conducted on a sampling of 700 mixed college students from seven different schools nationwide by written questionnaire to evaluate the value system of convenience foods among Korean college students. Korean students put value on the following categories of convenience foods in order; convenience, taste, price, appearance, appliance to daily life, variety, locality, nutritional value, originality, improvement required, cleanliness and tradition. Significant differences between the sexes occurred in categories as cleanliness and convenience, since females considered convenience foods as convenient but not so clean (safe to eat). This study also conducted factor analysis on 24 individual convenient foods. Noodles laid emphasis on nutritional value; where refrigerated foods, ready to eat (RE) side dishes, on-the-spot kimbab, and sandwiches focused on cleanliness. Noodles. cereal, and instant soup focused on price. Frozen pizza, noodles, retort, RE meat, ham, fish cakes were dependent on locality and traditionality. Noodles, instant food, and packed kimchi scored highly on convenience. Frozen fried rice, retort, instant porridge, instant rice, RE meat, cereal, instant soup, and RE side dishes on consumption on a regular basis. Cereal, refrigerated foods, and RE side dishes laid emphasis on taste. Noodles, instant rice, cereal, ham, and RE side dishes focused on variety. Retort, RE meat, ramen, cereal, ham, and on the spot sandwiches looked to originality, while canned foods was recognized as ‘needing improvement’.

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A Experimental and Numerical Studies of Thermal Flow Motion in a Geothermal Chamber (동결챔버내의 열 흐름에 관한 실험 및 수치해석적 연구)

  • 송원근;김영진;이형일
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.16 no.3
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    • pp.219-228
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    • 2003
  • Numerical and experimental studies were conducted on the temperature distribution of a buried steel pipe and surrounding granite frozen soils in the closed system. The relationship between unfrozen water content and temperatures was analysed by laboratory test. The thermal conductivity measurements were made to compare the results with a formula presented by Lachenbruch. A steel container model that consists of a freezing chamber and a buried circular steel pipe was built for the laboratory temperature measurements. The time temperature records were measured experimentally, and those records were compared with numerical results obtained from FEM analysis in order to verify the feasibility. The latent heat effect on the granite frozen soils in the numerical study was considered.

Numerical Analysis on Freezing in the Ship Voyaging in Polar Regions

  • Kang, Ho-Keun;Kim, Ki-Pyoung;Ahn, Soo-Whan
    • Journal of Power System Engineering
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    • v.17 no.5
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    • pp.30-37
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    • 2013
  • For vessels operating in the cold climate regions, the ballast water inside or hopper tanks above the waterline may be frozen, starting at the top of the tank and at the side walls. Therefore, countermeasures against freeze-up of the ballast tank such as air-bubbling system, hot steam injecting system, heating coil system and water circulating system are taken to prevent freeze-up phenomenon; however, there are no rigorous investigations of anti-freezing to examine the effectiveness and validity of systems against freeze-up of the ballast tank, in which the temperatures are about -$25^{\circ}C$ (ambient air temperature) and $0^{\circ}C$ (sea water), respectively. In this paper, to ensure reasonable specifications for cold regions if the measures from the above-mentioned systems against freeze-up are effective, the phenomenon of ballast tank freeze-up is simulated and discussed in low temperature conditions. With the results using the commercial CFD code, CFX 14, the most cost-effective solution is conducted to prevent being frozen along the outer surface.

Analysis of Pesticide Residues in Frozen Fruits and Vegetables (냉동 과·채류의 잔류농약 분석)

  • Kim, A-Ram;Kim, Ki-Cheol;Moon, Sun-Ae;Kim, Han-Taek;Lee, Chang-Hee;Ryu, Ji-Eun;Park, Ye-ji;Chae, Kyung-Suk;Kim, Ji-Won;Choi, Ok-Kyung
    • Journal of Food Hygiene and Safety
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    • v.37 no.2
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    • pp.69-79
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    • 2022
  • The purpose of this study is to monitor the pesticide residues in frozen fruits and vegetables distributed and sold in online and offline markets in Korea. For the study, 107 samples of 34 types of frozen fruits and vegetables were examined, and a total of 341 pesticide residues were analyzed by using multiclass pesticide multi-residue methods of the Korean Food Code. As a result, pesticide residues were detected from 16 of 64 frozen fruits samples and 15 of 43 frozen vegetables samples. Conclusively, residues were detected from 31 samples in total, showing a detection rate of 29.0%. Specifically, pyridaben exceeded the Maximum Residue Limits (MRLs) based on the Positive list system (PLS) in one of the frozen radish leaves, and the violation rate was 0.9%. Detection on frozen fruits and vegetables was made 23 times for 11 types and 36 times for 21 types. In total, 28 types of pesticide residues were detected 59 times. Fungicides were detected the most in frozen fruits, while insecticides were detected the most in frozen vegetables. The most detected pesticides were the insecticide, acaricide chlorfenapyr (5) and the fungicide boscalid (5). Chlorfenapyr was detected only in frozen vegetables, and boscalid was detected in frozen fruits except one.

Effects of Seeding during Freezing Procedure on Post-Thaw Viability and Acrosome Integrity of Boar Spermatozoa (돼지정액 동결중 식빙처리가 융해후 정자생존율 및 침체형태에 미치는 영향)

  • Kim Yong-jun;Kim Yong-hwan;Lee Young-jun;Kim Sue-hee;Ji Dong-beom
    • Journal of Veterinary Clinics
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    • v.21 no.4
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    • pp.363-368
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    • 2004
  • To investigate the effects of seeding during freezing procedure on post-thaw viability, motility, and acrosome integrity of boar spermatozoa, semen from 5 Yorkshire boars were collected for this experiment. Raw semen were diluted with Merck I, subsequently added with cooling diluent containing lactose and egg yolk and with freezing diluent containing glycerol. The diluted semen were frozen on the rack in the styrofoam box filled with liquid nitrogen at the distance of 5 cm or I cm above LN2 level. Seeding was performed to only a group of straws frozen at 5 cm away on the surface of LN2. The frozen semen were thawed in $50^{\circ}C$C water and the viability and local motility were analyzed by sperm analysis imaging system. A part of thawed semen was taken for the examination of morphology of apical ridge of the acrosome to compare with the effect of seeding between the seeding-treated and non treated groups. I. Post-thaw viability was considerably higher in seeding-treated sperm than non-seeding group (p<0.01), however, no difference of local motility was obtained among the groups. 2. At three hours after thawing, viability was also higher in seeding-treated group than non-treated group (p<0.05), along with no difference of motility among the groups. 3. Higher normal acrosome integrity was obtained in the seeding-treated sperm than non-treated groups (p<0.01). 4. Between non-seeded groups, higher normal acrosome integrity was obtained in the sperm group frozen at 5cm upper on the surface of LN2 than that frozen at 1cm away (p<0.01). These results indicated that seeding treatment during freezing boar spermatozoa was beneficial to post-thaw viability and normal acrosome integrity.

Profiling of differentially expressed proteins between fresh and frozen-thawed Duroc boar semen using ProteinChip CM10

  • Yong-Min Kim;Sung-Woo Park;Mi-Jin Lee;Da-Yeon Jeon;Su-Jin Sa;Yong-Dae Jeong;Ha-Seung Seong;Jung-Woo Choi;Shinichi, Hochi;Eun-Seok Cho;Hak-Jae Chung
    • Journal of Animal Science and Technology
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    • v.65 no.2
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    • pp.401-411
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    • 2023
  • Many studies have been conducted to improve technology for semen cryopreservation in pigs. However, computer-assisted analysis of sperm motility and morphology is insufficient to predict the molecular function of frozen-thawed semen. More accurate expression patterns of boar sperm proteins may be derived using the isobaric tags for relative and absolute quantification (iTRAQ) technique. In this study, the iTRAQ-labeling system was coupled with liquid chromatography tandem-mass spectrometry (LC-MS/MS) analysis to identify differentially expressed CM10-fractionated proteins between fresh and frozen-thawed boar semen. A total of 76 protein types were identified to be differentially expressed, among which 9 and 67 proteins showed higher and lower expression in frozen-thawed than in fresh sperm samples, respectively. The classified functions of these proteins included oxidative phosphorylation, mitochondrial inner membrane and matrix, and pyruvate metabolic processes, which are involved in adenosine triphosphate (ATP) synthesis; and sperm flagellum and motile cilium, which are involved in sperm tail structure. These results suggest a possible network of biomarkers associated with survival after the cryopreservation of Duroc boar semen.

The adaptation of Frozen from Morphology of the Folk Tale (민담형태론으로 바라본 겨울왕국의 각색기능 분석)

  • Xuhao, Xuhao;Park, Sung-won
    • Cartoon and Animation Studies
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    • s.51
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    • pp.107-127
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    • 2018
  • The methodology for adapting fairy tales has long been used in the making of cultural products. The downside of this methodology is to discover the modern value of fairy tales and to adapt it to the trend to deliver messages. In this paper, I believe that the universal idea of fairy tales will be a way to elicit sympathy from the audience. A story adapted from the story " Snow White and the Seven Dwarfs " in 1937 played an important role in the development of animation. Disney then continued to create animations that adapt to the original character. Since the beginning of 2013, Disney has changed the theme of the original book, story structure, character setting, and created its own adaptation system. " Morphology of the Folk Tale " is a system of analysis derived from many fairy tales that can be conducted accurately on most fairy tales. The purpose of this paper is to use Morphology of the Folk Tale to analyze the changed functions of and to analyze the system used by Disney in fairy tales. As a result, Disney found that when it was adapted to B, it chose a family that matched the modern history. He also changed the relationship of characters in the premise that the plot of the story has not changed. Disney's analysis of the changing system in the adaptation of can be traced to other similar works.