• 유통과학연구
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• 제17권9호
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• pp.127-131
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• 2019

Purpose - This study focuses on clues that can clearly amplify the effects of background music. Review which store environments have a direct and positive impact on consumer responses, such as purchases. Research design, data, and methodology - This study focuses on clues that can clearly amplify the effects of background music. The purpose of this study is to examine what kind of store environment, combined with background music, has a direct and positive effect on consumer reactions such as purchase, and suggest future research directions. Results - The manager decides to use background music in the store because it is relatively inexpensive and easy to identify the emotional response of the consumer. In addition, appropriate background music lowers the psychological purchasing barriers of consumers. Previous studies have often not conducted a basic review of whether consumers perceive background music when it is used in retail stores. For example, it is necessary to make sure that the volume of the background music is loud enough and that the noise is properly excluded despite the congestion of the store so that the pure influence of the background music on the consumer can be measured. A way for store managers to clarify and differentiate their identity is to create a unique and satisfying store atmosphere for their customers. In order to help customers focus on their purchases, store managers must use marketing elements to integrate the five senses. And they should plan background music aiming at synergy effect of these five senses. In other words, in order to make the store atmosphere positive, it is not enough to have a suitable visual design interior or background music in the store, and consumers should have the opportunity to smell, taste and touch it directly. Conclusions - In conclusion, we hope that the following issues will be studied by several scholars in the future. It should be clarified that the impact of background music on customers varies depending on the customer's movement in the store, the selection of the background music genre order, and the timing (interval) of background music exposure to the customer.

• 대한의용생체공학회:의공학회지
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• 제5권2호
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• pp.167-172
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• 1984

In the present study, we developed a nuclear stethoscope interfaced with a personal computer (APPLE- II) and evaluated it's performances as compared with the gamma camera. This single-probe, ECG-gated system has been used for displaying the left ventricular time-activity curves, the peak ejection time and its rate, the peak filling time and its rate, and the R-R interval distribution. The radioactivity was measured at every 10msec around the ventricular region, where the activity curves shows the maximal peak to peak variations. The background activity was measured around the lung area showing its counts approximately 50% of the end-diastolic count with minimal variations. The average time-activity curves of 100 beats were used for analysis in the equilibrium study after intravenous injection of 15-20mCi of Tc. The ejection fractions measured by the nuclear stethoscope(Y) were compared with those measured by gamma camera(X) in 47 patients with various heart diseases. The correlation coefficient between two measurements was 0.766 with a relation of Y=1.04 x-8.48. Also, the high reproducibility was obtained for the same patient. Also, the high reproducibility was obtained for the same patient. From this study, we conclude that this device is useful for continuous monitoring in the intensive care unit, as it is portable, compact, and inexpensive.

• 화약ㆍ발파
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• 제27권1호
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• pp.7-20
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• 2009

본 연구는 플라즈마 암 파쇄공법의 단발형태에 따른 시공성 향상을 위해 플라즈마 전력충격기에 5단계의 지발시차를 적용하여, 1단계부터 5단계까지 단계별로 지발당전해질량을 1kg, 2kg, 3kg, 4kg, 5kg으로 변화시키고, 기폭에 따른 지발시차와 진동및 소음의 크기를 측정 분석하였다. 분석결과, 5단계의 전력충격파암기의 지발시차는 전해질 연결개수 1~3공은 약 40~50ms, 4~5공은 약 70~80ms, 진동의 크기는 에멀젼 폭약에 비해 약 3~6배 정도 낮은 것으로 확인되었다.

• Toxicological Research
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• 제20권2호
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• pp.159-166
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• 2004

Safety pharmacological properties of CJ-11555, an anti-cirrhotic agent, were investigated in experimental animals and in vitro test system. CJ-11555 had no effects on normal body temperature in rats, motor coordination, chemoshock induced by pentetrazol, electric shock induced by electric shocker and writhing syndromes in mice at dose levels of 100, 300 and 1,000 mg/kg. CJ-11555 inhibited intestinal activity and prolonged hexobarbital-induced sleeping time in mice at the dose level of 1,000 mg/kg. CJ-11555 affected on general activity and behaviour tests in SD rats, such as lacrimation, ptosis, piloerection, decreased body tone, abnormal dispersion within the cage, diarrhoea, red colored faeces, slight hypothermia and decreased grooming, at the dose level of 1,000 mg/kg in rats. CJ-11555 was effected on cardiovascular and respiratory system in anesthetized beagle dogs, such as tachycardia, increase of mean blood pressure and decrease of PR interval, decrease of respiratory rate and minute volume, at dose levels of 10 and 30 mg/kg. However, these effects were also observed in vehicle treated anesthetized beagle dogs. In in vitro experiments, CJ-11555 inhibited agonists (histamine, acetyl-choline or $BaCl_2$) induced contraction of isolated guinea-pig at the concentration of 30$\times$$10^6$ M. CJ-11555 was weekly inhibited hERG channel current at concentrations of 10 and 30$\times$$10^6$ M, and $IC_{50}$ was estimated to be higher than 30${\times}$$10^6$M. Based on these results, it was concluded that CJ-11555 affected on cardiovascular and respiratory system, general activity and behaviour and hexobarbital-induced sleeping time at the dose level of 1,000 mg/kg and contraction of the smooth muscle and hERG channel current at the concentration of 30$\times$$10^6$ M.

• 한국축산시설환경학회지
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• 제6권2호
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• pp.73-81
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• 2000

A two-phase anaerobic digestion system for the treatment of swine waste was constructed in a commercial hog farm. The digester system was composed of 4 major units; slurry storage pit, acidogenic digester, methanogenic digester and sedimentation pit. A biogas boiler unit was also attached to maintain the digester temperature of 37$^{\circ}C$. Substrate lading was made with 2hr-interval by pumping about 2.1$m^3$ of slurry type swine waste from the slurry pit into the acidogenic digester, which corresponds to hydraulic retention time of 4 days for the acidogenic digester and of 11 days for the methanogenic digester. Digester temperature were well maintained as the set temperature of 37$^{\circ}C$ in the methanogenic digester, while the temperature in the acidogenic digester showed around 34$^{\circ}C$. pH also showed a steady-state results of 7.3 in the acidogenic digester and of 7.6 in the methanogenic digester during the operation period. Average biogas production rate was 0.66$m^3$/$m^3$ digester volume. Reduction rate of total solid and volatile solid were 42.8% and 5.8%, respectively. Total nitrogen and ammonia nitrogen were not reduced during the anaerobic fermentation, however, most of VFAs seemed to be converted to the biogas,. These fermentation performance data may suggest that he newly developed a two-phase anaerobic digester for the swine waste treatment worked so successfully.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1995년도 춘계학술대회
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• pp.86-86
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• 1995

The analysis of membrane receptors for hormones and neurotransmitters has progressed considerably by pharmacological and biochemical means and more recently by the use of specific anti-receptor antibodies. A 14-mer peptide (from Phe102 to Leu115 of ${\beta}$2-adrenergic receptor) was synthesized and this peptide was coupled to carrier protein Keyhole Limpet Hemocyanin(KLH) by glutaraldehyde method. A 0.5mg of KLH-coupled peptide was emulsified with equal volume of complete Freund's adjuvant and injected via popliteal lymph node to each of the three Newzealnd White rabbits. Booster injections were repeated at 4 weeks interval for three times with incomplete Freund's adjuvants. One week after the final injection, serum was prepared from ear artery. Nonspecific immunoglobulins were removed by passing the serum through KLH-Sepharose 6B affinity matrix and further by incubation with bovine lung aceton powder. The titer of the antibody for synthetic peptide which was determined by enzyme linked immunosorbent assay(ELISA) was about l/l,000. The antibody produced in this study revealed 67kDa protein band in the western blot of partially purified guinea pig lung ${\beta}$-adrenergic receptor preparation. The antibody inhibited ${\beta}$-adrenergic antaginist [3H] Dihydroalprenolol binding to soluble ${\beta}$-adrenergic receptor by 25% while control sera did not show any inhibitory effects, The result of this study suggests that the peptide sequence selected in this study may play some important roles in adrenergic receptor-ligand interaction.

• Journal of Plant Biotechnology
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• 제31권2호
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• pp.139-143
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• 2004

네리네의 인편 배양에 의한 기내 증식을 위하여, 쌍인편으로부터 자구형성에 미치는 NAA와 BA 및 sucrose 농도의 영향을 조사하였다. 네리네의 쌍인편으로부터 기내 자구형성에 가장 적합한 배지는 1.0mg/L NAA와 2.0mg/L BA를 첨가한 MS배지였다. 적정 sucrose 농도는 30 g/L에서 가장 양호하였으며, 90g/L 이상의 sucrose 첨가배지에서의 자구형성은 심하게 억제되었다. 비대된 인편을 단축경과 함께 5mm크기로 잘라 60일 간격으로 1, 2, 3차 계대 배양한 결과, 절편당 자구수는 6.5, 7.3, 8.2개로 다수의 기내자구를 지속적으로 생산할 수 있었다. 기내 형성된 3mm 이상의 자구는 생장조절제를 첨가하지 않은 MS배지에 옮겨 60일간 생육시킨 후, 초장 50mm이상 자란 식물체를 버미큐라이트와 펄라이트를 1:1 혼합한 배양토에 순화시켰을 때, 생존율은 95% 이상으로 높았다.

• 한국유기농업학회지
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• 제21권2호
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• pp.265-270
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• 2013

2010년부터 2011년까지 2년 동안 경상남도농업기술원 단감연구소 포장에서 단감 흰가루병(P. kakicola)을 방제하기 위하여 난황유를 3회 지상부에 살포한 다음 5일 후 병해 방제효과를 검정하였다. 난황유 처리구에서 병반 면적율을 조사한 결과 13.4%였으며, 단감 흰가루병에 대한 방제효율은 80.5%이었다. 무처리구에서 68.6% 발생하였다. 난황유를 처리한 후 주사전자현미경으로 관찰한 흰가루병의 균사는 형태적으로 세포가 원형질막이 파괴되어 세포내용물이 소실되어 쭈그러졌다. 이것은 난황유가 흰가루병의 세포벽이나 세포막을 파괴하여 생긴 것으로 사료된다.

• 생물환경조절학회지
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• 제8권4호
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• pp.265-274
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• 1999

본 연구는 perlite를 이용한 오이의 양액재배시 적정 배지량과 근권용적을 구명하고자 용기의 크기가 2, 4, 6, 8 및 $10{\ell}$인 플라스틱 포트에 펄라이트를 채워 오이를 양액 재배하였다. 근권용적이 증가할수록 초장, 경경, 엽수 및 엽면적이 증가하였고, 과실수와 과실중량에서는 근권용적이 큰 $8{\ell}$ 와 $10{\ell}$ 의 처리구에서 가장 양호하였으며 기형과 발생률도 낮은 경향이었다. 근권용적을 $6{\ell}$ 이상으로 하였을 때 경으로의 건물분배가 줄어들고 엽으로의 건물분배가 많았다. NAR과 CGR은 근권용적이 증가함에 따라 증가하는 경향을 보였다. 관권용적에 관계없이 본 실험 범위내에서는 LAI가 증가할수록 NAR과 CGR도 증가하는 경향을 나타내었다.

• 지질공학
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• 제4권2호
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• pp.187-206
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• 1994

전산모형시험을 통하여 고해상도 해양반사파 탐사를 위한 최적 장비구성과 자료획득변수를 결정하였다. 조사선 온누리호에 탑재된 각기 다른 6종류의 독립 에어건과 1쌍의 cluster에 대하여 시간 및 주파수 영역에서 분석한 원거리장 파형특성은 내부용적 $2.46{\ell}$의 슬리브건 2개로 구성된 cluster를 2m 정도의 깊이에서 발파할 경우에 고해상도 탐사시 적합한 원거리장 파형이 발생될 수 있음을 보인다. 온누리호의 12채널 스트리머는 96채널 스트리머와 비교할 때, 신호대 잡음비가 다소 낮은 문제가 있으나, 높은 수직 및 수평 해상도를 얻을 수 있어 천부 반사파탐사에 적합한 것으로 분석된다. 기타 획득변수는, 대상심도, 주파수범위, 에어건 내부용적, 수신 채널수, 콤프세샤 용량 등 제반요소를 고려할 때, 기록시간 1m, 샘플간격 1ms, 발파간격 3.125m 혹은 6.25m가 적당한 것으로 판단된다.