• Industrial Engineering and Management Systems
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• 제11권2호
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• pp.188-195
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• 2012

This paper presents a new mode of expressing a 3D assembly work for creating a 3D CG animation without judgment by human from minimal required information. In the field of manufacturing, there are favorable movements in the utilization of 3D CAD for 3D simulation to shorten lead time for product development and pre-production. But simulating an assembly work has troubles to need huge quantity of manually input data. This paper discusses what minimal necessary information for creating 3D CG animations of assembly works is, focusing on the features of assembly works. Furthermore, a new mode of expressing a 3D assembly work is proposed as "state/change transition diagrams" (SCTD), which express arbitrary scenes in an assembly work as "state" and describe a sequential assembly work with "state" and "change", and the outline of its stepwise generation algorithm is also described. SCTD can be converted to a 3D CG animation of an assembly work without judgment by human. This paper focuses on the creating 3D CG animation of assembly works which workers use only their both hands.

• 한국전자파학회논문지
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• 제15권8호
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• pp.775-780
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• 2004

본 논문은, 각 채널이 여파기와 군지연 등화기로 구성되는, 위성용 다중채널 입력 멀티플렉서에서 사용되는 군지연-등화되는 여파기의, Simulated Annealing(SA) 기법과 Conjugate Gradient(CG) 기법의 새로운 결합형 설계 방식에 의한 구현을 기술한다. SA기법은 8차 타원적분형 여파기, CG기법은 2극 등화기 각각의 회로 설계변수들의 값을 찾아내는데 이용된다. 측정결과는 설계된 부품의 spec.에 대하여 성능이 만족함과 설계기법의 타당성을 나타낸다.

• 한국측량학회지
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• 제23권4호
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• pp.353-358
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• 2005

본 논문의 목적은 CHAMP, GRACE 데이터와 지표면 중력데이터를 이용하여 개발된 새로운 지오포텐셜 모델인 EIGEN-CC01C을 평가하는데 있다. 정확도 분석은 EIGEN-CG01C와 EGM96의 두 가지 지오포텐셜 모델로부터 계산된 각각의 지오이드고와 수준점에 대한 GPS 관측값으로부터 계산된 지오이드고를 비교하는 방식으로 수행하였으며, GPS 관측에 사용된 수준점은 총 320점이다. 본 연구결과, KGEOID98과 같은 정밀 지오이드를 개선하기 위한 기준면으로서는 편의가 적은 EIGEN-CG01C모델이 EGM96모델에 비하여 보다 더 적합한 것으로 나타났다.

• 한국수정란이식학회지
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• 제7권2호
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• pp.89-96
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• 1992

This research was conducted to investigate the interrelationship among methods of injection of PMSG-hCG to the number of ovulated eggs, percentage of matured oocytes and in vitro fertilization using out-bred ICR mice. The results obtained are as follows, 1) The optimurn dose was 5 IU for both PMSG and hCG, while the number of ovulated eggs was 42$\pm$8, percentage of M II was 73% and in vitro fertilization rate was 81 %. 2) The optimum injection interval of PMSG-hCG was 48 hours, while the number of ovulated eggs was 48 $\pm$ 8, percentage of M II was 80% and in vitro fertilization rate was 81%. 3) The optimum time for collecting eggs was between 16 and 18 hours after hCG injection, while the numbers of ovulated eggs were 44$\pm$8, 42$\pm$7 and 43$\pm$7 in 14,16 and 18 hours after hCG injection respectively, and percentages of M II were 79 and 81 %, and in vitro fertilization rates were 81 and 80% in 16 and 18 hours after hCG injection, respectively. 4) The repeat of superovulation decreased with the number of ovulated eggs, percentage of M II and in vitro fertilization rate, than in control. But it was recovered by increasing the repeat interval.

• 한국가축번식학회지
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• 제13권2호
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• pp.70-78
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• 1989

Mouse eggs recovered from oviducts at one hourly intervals between 10 and 20 hours after administration of hCG were fixed, stained and then investigated the rate of in vitro fertilization and nuclear maturation. In case of out- bred ICR mice, ovulations were occured between 11 and 13 hours after hCG injection. The stages of in vitro maturation of eggs recovered from female mice at various times after hCG injection were metaphase I, anaphase I, telophase I and metaphase II. However the majority was metaphase I(17.6 to 44.4%) and metaphase II(42.9 to 80.0%) stage. When the eggs were inseminated with epididymal spermatozoa, the fertilization rate was declined as the egg recovery time after hCG administration was delayed. That is, the proportion of eggs undergoing fertilization became higher(68.1 to 77.4%) in the eggs at 12 to 15hr after injection of hCG than those(17.5 to 56.4) at 16 to 20 hr after injection of hCG. Also, when nuclear maturation of the unfertilized eggs were observed at 8 hours after insemination, the majority was in metaphase I and metaphase II and no anaphase I and telophase I were observed.

• 대한물리치료과학회지
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• 제7권2호
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• pp.513-521
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• 2000

This study was carried out to investigate the effects of electrical stimulation on the change Tyrosine-Hydroxylase immunoreactive(TH-IR) cells in the Central gray and retrorubral field of the male SD rats. 9 healthy and normal rats were divided into three groups, 3 SD rat in each group. The one group has been stimulated by electroacupuncture(EA, 2Hz) for 30min and the other group by EA for 1hr 30min and control group has been stimulated. TH-IR cells were found in the Central gray(CG) and Retrorubral field(RF). The numbers of TH-IR cells of CG and RF were significantly increased after 30 min (CG $6.2{\pm}0.83$, RF $1.4{\pm}0.55$)as compared with control group(CG $24{\pm}3.16$, RF $6.4{\pm}0.55$) and were also significantly increased after 1hr 30min(CG $75.6{\pm}4.51$, RF $18.8{\pm}0.89$) than 30min. These results show that TH is related into CG and RF in response to electrical stimulation.

• Clinical and Experimental Reproductive Medicine
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• 제20권2호
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• pp.149-156
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• 1993

Human chorionic gonadotropin(hCG) and intravenous immunoglobulin(IVIG) treatment were attempted as a novel therapeutic approach for unexplained recurrent spontaneous abortion(RSA). Forty-four and 3 women with a history of RSA were treated with hCG and IVIG, respectively, during pregnancy. Of these patients, serum blocking factor assay was performed before and after each treatment, in 15 patients; 12 cases with hCG and 3 cases with IVIG. The results were as follows: 1. Of 44 women who receive hCG during pregnancy, 24 delivered healthy infants at term, 10 patients suffered repeat abortion, and 10 women are still pregnant under 28 weeks. Over all success rate of hCG treatment was 70.6% (24/34). Although there is no statistical significance, absolute serm blocking level was decreased after treatment(N=12). 2. Of 3 women who receive IVIG during pregnancy, all 3 women are still pregnant under 28 weeks. Serum blocking level was increased after treatment, however, this increment was not statistically significant. Although no conclusion could be extracted from the patients who received IVIG, the therapeutic effect of hCG is comparable to that of the other therapeutic regimens, such as allogeneic leukocytes. It was postulated that actual etiology of unknown RSA would be classified as hormonal origin although combined etiologies are common in Korean women.

• Asian-Australasian Journal of Animal Sciences
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• 제15권8호
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• pp.1076-1079
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• 2002

The DNA fingerprint polymorphism and the genetic relationship were studied by RAPD technology on Chaidamu goat (CG), Chaidamu Cashmere goat (CCG) and Liaoning Cashmere goat (LCG) from Chaidamu Basin of Qinghai province, China. The results showed that: The amplified bands were all 94 in 3 goat populations by using 8 random primers, and the DNA polymorphism frequencies of CG, CCG and LCG were 0.8404, 0.8617 and 0.8511, respectively, and the length of these DNA fragments were 176-2937 bp. The mean heterozygosities of the 3 goat populations were 0.5148, 0.5142 and 0.5075, respectively. The genetic relationship between CCG and CG or LCG were similar (Gst=4.37% and 3.79%; $D_{ij}=0.0109$ and 0.0106), and that between CG and LCG was further (Gst=13.14%; $D_{ij}=0.0230$). These results also showed that the genetic relationship between CCG and LCG was the closest, then CG and LCG, and CG and CCG was distant.

• 척추신경추나의학회지
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• 제12권2호
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• pp.1-14
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• 2017

Objectives: To systematically evaluate the effectiveness and safety of Chuna manual therapy (CMT) for chronic gastritis (CG). Methods: We searched twelve English, Chinese and Korean databases using relevant keywords up to September 2017. All randomized controlled trials (RCTs) of CMT for CG were considered for inclusion. The methodological quality of included RCTs was assessed by the Cochrane risk of bias tool. Results: Seven RCTs with 403 CG patients were included. The meta-analysis of 6 studies showed that CMT had statistically significant effects (p<0.0001) on effective rate for CG compared to conventional medication. Conclusions: This systematic review suggests that CMT seems effective for CG, but limited evidence from risk of bias. For future studies, high-quality RCTs such as sham-controlled studies with standardized interventions are needed to provide sufficient evidence on the effects of CMT for CG.

• Clinical and Experimental Reproductive Medicine
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• 제13권1호
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• pp.29-38
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• 1986

In order to study the mechanism of follicular atresia, follicles were classified into the normal groups and the atretic ones, according to the criteria with or without corpus luteum, size of follicles, vascularization, status of granulose cells and the hypertrophy of theca layers in the porcine ovary. To estimate the binding capacity of human chorionic gonadotropin (hCG) receptor on the granulosa cells during atresia, hCG were iodinated by the chloramine-T method and then purified through the column chromatography. The concentration" of hCG receptor in each group were measured by the hCG receptor binding assay. Binding capacity in large normal follicles were 1.16%, but atretic ones were 0.45%. But in medium and small follicles (below 6mm in diameter), the binding capacity in normal follicles were 0.09%, but atretic ones were 0.05%, which was lower than those of large follicles. The present ( ) that the concentrations of hCG receptors on granulosa cells is decreased when the follicles become atretic and be used as a sort of creteria for the identification of follicles atresia.