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Fertility of Holstein Cows in Chengdu, China

  • Zi, X.D.;Ma, L.;Zhou, G.Q.;Chen, C.L.;Wei, G.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.2
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    • pp.185-188
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    • 2003
  • Data on the use of breeding records of dairy cattle farm of Fenghuang-shan in Chengdu areas during a period of six years is systematically analyzed. The results show that Holstein heifers have their 1st estrus at an average age of $513.6{\pm}46.7$ d which is not related to the calving season. Estrus mostly occurs in the months with mild ambient temperature (March, April, May, November and December). There is a very poor rate of estrus detection; only 30.0% successive estrus is observed within 24 d, 29.3% within 25-48 d, 40.6% over 48 d. The average number of insemination per conception is 1.50 for heifers and 1.74 for cows, but conception rate (CR) is lower in the relatively warm months (July, August and September) ranged from 48.1% to 51.9% compared with 58.1% to 68.5% in other months. High temperature is the most important factor affecting fertilization in warm months, but neither did CR decline immediately with the increased air temperature in June, nor did it increase immediately with the declined air temperature in September. Post partum anestrous period is $119.5{\pm}60.5$ d. The average interval from calving to conception is $159.4{\pm}85.6$ d with only 19.8% of the cows conceived within 85 d of calving. Cows with high milk yield have longer acyclic periods and lower conception rates. Improvement of efficient managements must be a precedent condition in Chengdu areas.

MULTIDISCIPLINARY APPROACH FOR THE DENTAL TREATMENT OF A PATIENT HAVING TRACHEOSTOMY TUBE (기관내삽관을 가진 장애환자의 치과치료를 위한 협의 진료)

  • Cha, Yoon-Sun;Kim, Ji-Hun
    • The Journal of Korea Assosiation for Disability and Oral Health
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    • v.10 no.1
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    • pp.38-42
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    • 2014
  • A tracheostomy tube serves as airway management for patients whose respiration is impeded due to inflammation, tumor, or traumatic events. If the patients who have tracheostomy tube, visit dental clinic for dental treatments, we should consider the underlying general condition of patients and then make treatment plans according to their state. A 22-Year old male patient, who had tracheostomy tube on his neck, came to our department for comprehensive dental treatment. Mild mental retardation was observed and he was taking anti-convulsant drugs for the prevention of epileptic seizure. Multiple advanced dental caries, hopeless teeth, and impacted third molars were also observed by clinical and radiographic examination. Due to the risk of epileptic seizure and low cooperativity to tolerate the treatment, general anesthesia was recommended by physician, and the anti-convulsant drug was administrated during procedure. In this case, we aimed to report the multidisciplinary approach for the dental treatment of patient having a tracheostomy tube.

The Estimated Drying Schedule of Fagaceae Four Species Grown in Kangwon-Do (II) (강원도산(江原道産) 참나무과(科) 4수종(樹種)의 추정건조(推定乾操)스케줄(제2보))

  • Park, Jong-Su;Kim, Su-Chang
    • Journal of Forest and Environmental Science
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    • v.12 no.1
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    • pp.1-12
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    • 1996
  • This study was carried out to estimate drying schedule of Fagaceae four species grown in Kangwon-Do by oven-drying at $100^{\circ}C$ which aimed to elucidate the characteristics such as current moisture content, drying process, initial check, collapse and internal check during drying following each board thickness (1.5cm, 2.5cm, 3.5cm, 4.5cm). The results were as follows; Current moisture content of each board showed a rapid drying curve with the high initial moisture content of board. With the high initial moisture content, the incease of board thickness and the slowness of changing rate of moisture content, species took long to do drying. Also, the initial conditions of drying had to be mild condition with the increase of board thickness.

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The Study on the Formation of Pathology to which Jogakdaehwang-tang is Applicable and the Change of its Composition (조각대황탕(皂角大黃湯) 적용 병증의 형성과 처방구성의 변천에 관한 고찰)

  • Kim, Ji-Hwan
    • Journal of Sasang Constitution and Immune Medicine
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    • v.29 no.3
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    • pp.211-223
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    • 2017
  • Objectives The purpose of this study is to understand the formation of Jogakdaehwang-tang(JD-T)'s patholoy and the compositional change of it in Sasang Constitutional Medicine(SCM). Methods The pathologic condition in which JD-T was used and the change of its composition was studied in SCM Results and Conclusions 1. Jogak and Daehwang in "Dongmuyoogo Haedong" were presented with Ungdam because of the common purpose flowing the energy of lung. Therapeutic method for exogenous Ungibyeong in "Dongyisusebowon sangchobongwon" was subdivided into Hangwul's treated by Ungdam, and the heat pattern featuring contagious cold and constipation, treated by Jogakhwanggeumdaehwang-tang(JHD-T). 2. JD-T in "Dongyisusebowon Gabogubon" was used for Yangdok and Onbyeong which are exogenous disease causing by heat. The composition of JD-T has been completed as it included Mahwang, Gilgyeong, and Seungma derived from prescriptions relevant with Yangdok. 3. JD-T in "Dongyisusebowon Sinchukbon(Sinchukbon)" was included in pathology of Ganyeol, and it substituted Galgeunhaegi-tang(GH-T) for Onbyeong, not for Yangdok, so Galgeun and Seungma became the main drug in JD-T. Galgeunseung-gitang(GS-T) was created for treating heat pattern owing to Daehwang, its main drug, and moreover Jogak's effect is too strong. Therefore, Mahwang, Hwanggeum and Gilgyeong was excluded from the composition of JD-T. 4. The origins of JD-T could be Yiseonggugo-hwan, Daesiho-tang, Jowiseungchung-tang, Heukno-hwan, and GH-T. The change of JD-T went for them throughout JHD-T to JD-T. JD-T in "Sinchukbon" consists of Galgeun and Daehwang which directly gets rid of severe heat from small intestine, and Jogak and Seungma which help to eliminate mild heat existing from small intestine throughout nose to flesh.

The Relationship between Clinical Grading of Carpal TunnelSyndrome and Sensory nerve Conduction Velocity (수근관 증후군의 임상증상정도와 감각신경전도검사와의 관계)

  • Kwak, Jae-Hyuk;Lee, Dong-Kuck
    • Annals of Clinical Neurophysiology
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    • v.6 no.2
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    • pp.98-102
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    • 2004
  • Background: Carpal tunnel syndrome (CTS) is a common condition characterized by entrapment neuropathy of the median nerves. Clinical manifestations are the most important findings for diagnosis and assessment of therapeutic effects. But, objective indicators, such as electrophysiological findings, are also valuable supplementary tools. This study investigated the relationship between clinical grading and sensory nerve conduction velocity (SNCV) of median proper palmar digital nerve (MPPDN) in CTS patients. Method: This study was done on 90 upper limbs of 53 patients with CTS (men: 6, women: 47, age: 26~69 years, mean age; 52 years). Each SNCV of MPPDN was recorded with bar electrode using antidromic method. Each SNCV was compared with clinical grading of CTS. The clinical grades of CTS were designated as follows; group 1 is mild symptoms, 2 is moderate symptoms, and 3 is severe and longstanding symptoms. Result: In thumb, the SNCV of MPPDN was not different significantly between 3 groups (p=0.817). In the index finger, the SNCV was the fastest in the group 1, but faster in group 3 than in group 2 (p=0.001). In the middle and ring fingers, SNCV was decreased in higher clinical grading groups (middle finger: p=0.015, ring finger: p=0.044). Conclusion: SNCV of MPPDN of middle and ring finger correlated with the clinical grading of CTS. SNCV of index finger was the fastest in group 1. But SNCV of thumb did not correlate with the clinical grading of CTS.

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Numerical Analysis of Wave Agitations in Arbitrary Shaped Harbors by Hybrid Element Method (복합요소법을 이용한 항내 파낭 응답 수치해석)

  • 정원무;편종근;정신택;정경태
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.4 no.1
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    • pp.34-44
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    • 1992
  • A numerical model using Hybrid Element Method(HEM) is presented for the prediction of wave agitations in a harbor which are induced by the intrusion and transformation of incident short-period waves. A linear mild-slope equation including bottom friction is used as the governing equation and a partial absorbing boundary condition is used on solid boundaries. Functional derived in the present paper is based on the Chen and Mei(1974)'s concept which uses finite element net in the inner region and analytical solution of Helmholtz equation in the outer region. Final simultaneous equations are solved using the Gaussian Elimination Method. The model appears to be reasonably good from the comparison of numerical calculation with hydraulic experimental results of short-wave diffraction through a breakwater gap(Pos and Kilner, 1987). The problem of requring large computational memory could be overcome using 8-noded isoparametric elements.

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A Case of Surgical Treatment of Intractable Vocal Fold Scar Using Basic Fibroblast Growth Factor and Collagen Scaffold (기본섬유아세포 성장인자와 콜라겐 골격으로 치료한 난치성 성대 반흔 1예)

  • Kang, Hyun Tag;Kim, Hyo Jun;Park, Ki Nam;Lee, Seung Won
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.30 no.2
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    • pp.124-127
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    • 2019
  • Vocal fold scarring is an intractable phonosurgical condition. The number of patients with vocal fold scars is increasing with the aging of society and with the increasing application of laryngeal microsurgery. Many methods are available to treat these, including voice therapy, stem cells, regenerative scaffolds, and growth factors. However, no standard treatment strategy has yet been established, and novel techniques are required. Basic fibroblast growth factor has been shown to be effective for the treatment of mild chronic vocal fold scarring. The combined use of basic fibroblast growth factor and regenerative scaffolds is currently under investigation. Here, we report a female patient in whom vocal fold scarring developed after two laryngeal microsurgeries. We performed laryngeal microsurgery to remove the scar tissue and used basic fibroblast growth factor and a collagen scaffold to promote healing. The patient's voice quality was greatly increased, and she was content with her voice after 2 years of follow-up. This is the first report of this methodology in Korea and is presented along with a review of the literature.

A Study on the Properties of Silk and Nylon 6 Fabrics by Tannic Acid Treatment

  • Yoa, Soojin;Kim, Jongjun
    • Journal of Fashion Business
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    • v.20 no.3
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    • pp.119-132
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    • 2016
  • Weighting of silk fabrics have long been practiced in silk fabric trading based on the primary consideration of price-weight, and secondary one of quality improvement in handle, luster, and drape properties. Recent trend of practicing weighting of silk fabrics is, however, focused on the improvement of the handle, luster, drape, and other properties. During the finishing processes of synthetic fiber, nylon, comprising amide structure, include the use of tannic acid, especially in the dyeing. A multitude of studies are being implemented in terms of improving fastness to washing, fastness to light of dyed nylon product, or the light fastness of nylon 6 itself. In this study, the effects of various tannic acid treatments on the physical properties related to the handle of nylon 6 and silk fabrics are examined and reviewed. The effects of treatment condition of the tannic acid, e.g., the concentration of the aqueous tannic acid solution, treatment time, and temperature were investigated. As the concentration of the aqueous solution of tannic acid increased, the bending rigidity values of the silk and nylon 6 fabrics increased. The treated fabrics felt stiff to the touch. Within the mild conditions of bending employed in the bending measurement of KES, nylon 6 treated fabric specimen exhibited a trend of improvement of bending resiliency within the range of small bending deformation. The weight of treated fabrics have all increased. The air-permeability values decreased as the treatment concentration increased. However, the decrease tendency of air permeability values may be alleviated by adjusting the fabric count during the tentering or expanding processes, either by tension adjustment or heat treatment. Optimum conditions of the treatment for nylon 6 are 1.25% tannic acid concentration, bath temperature of $85^{\circ}C$, pH 3.1, and those for silk fabric treatment are 1.25% tannic acid concentration, bath temperature of $85^{\circ}C$, pH 3.1. The treatment conditions will lead to the improvement in the properties of fabrics for summer.

Composition and Distribution of Phytoplankton with Size Fraction Results at Southwestern East/Japan Sea

  • Park, Mi-Ok
    • Ocean Science Journal
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    • v.41 no.4
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    • pp.301-313
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    • 2006
  • Abundance and distribution of phytoplankton in seawater at southwestern East/Japan Sea near Gampo were investigated by HPLC analysis of photosynthetic pigments during summer of 1999. Detected photosynthetic pigments were chlorophyll a, b, $c_{1+2}$ (Chl a, Chl b, Chl $c_{1+2}$), fucoxanthin (Fuco), prasinoxanthin (Pras), zeaxanthin (Zea), 19'-butanoyloxyfucoxanthin (But-fuco) and beta-carotene (B-Car). Major carotenoid was fucoxanthin (bacillariophyte) and minor carotenoids were Pras (prasinophyte), Zea (cyanophyte) and But-fuco (chrysophyte). Chl a concentrations were in the range of $0.16-8.3\;{\mu}g/land$ subsurface chlorophyll maxima were observed at 0-10m at inshore and 30-50 m at offshore. Thermocline and nutricline tilted to the offshore direction showed a mild upwelling condition. Results from size-fraction showed that contribution from nano+picoplankton at Chl a maximum layer was increased from 18% at inshore to 69% at offshore on average. The maximum contribution from nano+picoplankton was found as 87% at St. E4. It was noteworthy that contribution from nano+picoplanktonic crysophytes and green algae to total biomass of phytoplankton was significant at offshore. Satellite images of sea surface temperature indicated that an extensive area of the East/Japan Sea showed lower temperature ($<18\;^{\circ}C$) but the enhanced Chi a patch was confined to a narrow coastal region in summer, 1999. Exceptionally high flux of low saline water from the Korea/Tsushima Strait seemed to make upwelling weak in summer of 1999 in the study area. Results of comparisons among Chi a from SeaWiFS, HPLC and fluorometric analysis showed that presence of Chi b cause underestimation of Chi a about 30% by fluorometric analysis but overestimation by satellite data about 30-75% compared to HPLC data.

A Study on Flexural Ductility of Longitudinally Stiffened Plate Girders (수평보강재가 설치된 플레이트 거더의 휨 연성에 관한 연구)

  • Yoon, Dong Yong;Kim, Kyung Sik
    • Journal of Korean Society of Steel Construction
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    • v.19 no.6
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    • pp.643-653
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    • 2007
  • The ultimate bending strength and flexural ductility performance of longitudinally stiffened plate girders fabricated with mild steel were investigated utilizing nonlinear incremental finite element analysis. AASHTO LRFD (2002) design specifications were reviewed for possible application of longitudinally stiffened plate girders as compact sections. In order to investigate compact section requirements for plate girders with longitudinal stiffeners in webs, a number of full-scale plate girders were modeled and analyzed up to the collapse under pure bending condition. It was found that the slenderness of sub panel of the webs, the stiffness of longitudinal stiffeners, and the slenderness of compression flanges are key parameters governing the flexural ductility of the plate girders. It was also found from finite element analysis that longitudinally stiffened plate girder sections can satisfy compact section requirements both in full plastic moment capacity and flexural ductility requirement. New design equations have been proposed for longitudinally stiffened plate girders to be treated as compact sections.