• 아시안잔디학회지
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• 제6권2호
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• pp.83-88
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• 1992

Peat 및 화학 비료시용에 따른 잔디식물의 생장반응에 대한 실험 결과를 요약하면 다음과 같다. 1. 금잔디 생장반응 효과는 peat와 복합비료를 혼용했을 때 무처리 또는 peat나 복합비료의 단용시 보다 지상부와 지하부의 생장이 지속적으로 현저하게 증가되었다. 2. 줄기의 수는 무비상태보다 peat의 시용량이 증가함에 따라 많아졌으며 peat 3,000kg과 복합비료 혼용구에서 2배 이상 증가하였다. 3. 시험 후의 토양성분 변화는 peat 시용량이 증가할수록 대조구에 비해 pH와 유기물 함량이 높아지는 경향을 보였다. 4. 토양 중 Ca과 Mg의 함량은 대조구에 비해 peat의 시용량이 증가할 수록 높아지는 경향을 보였지만, Na의 함량은 peat시용량에 따라 큰 차이를 보이지 않았다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.209-209
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• 2017

The application of liquid swine manure to soil has been commonly reported to increase crop productivity by improving plant nutrient availability. This study was conducted to investigate the effect of liquid swine manure (LSM) application on yield of green manure crops in paddy. Three different application rates of LSM equivalent to 25%, 50%, and 75% of standard fertilization rate of P were applied to the paddy field after rice harvest, and two cover crops, hairy vetch (Vicia villosa Roth) and barley (Hordeum vulgare L.), were subsequently mix-seeded and cultivated. Plant height of barley was 7% higher in LSM P25% and LSM P50% compared to control treatment (no LSM application), while no significant difference was observed between LSM P75% and control. However, there were no significant differences in plant height of hairy vetch among treatments. Dry matter (DM) yield of green manure increased with LSM application rate, reaching a maximum at LSM P50% (38 and 17% yield increase over control for hairy vetch and barley, respectively), but it decreased at LSM P75% rate. Nitrogen production by green manure crops was the highest in LSM P50% treatment, where the amount of produced N was 57% higher than the optimum N fertilization level for rice ($90kg\;N\;ha^{-1}$). Excess green manure biomass above an optimum level can be removed and utilized either for incorporation into nearby cropland or for sale as fresh forage. Therefore, it is concluded that the application rate of LSM P50% is recommendable for the maximum biomass and nitrogen production from green manure crops in paddy.

• 디지털융복합연구
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• 제10권4호
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• pp.147-157
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• 2012

본 연구에서는 사용의도에 영향을 미치는 요인을 SNS의 컨설팅 활용과 주관적 규범, 과업매체 적합 요인들이 사용의도에 미치는 영향력을 살펴보았다. 이 과정에서 특히 주관적 규범과 과업매체 적합 각 차원들이 사용의도에 미치는 영향에 대한 컨설팅 활용의 매개효과를 검정하고자 하였다. 실증결과 본 연구에서 사용된 SNS의 주관적 규범, 과업매체 적합과 컨설팅 활용이 사용의도에 유의한 정(+)의 영향을 미침을 알 수 있었다. 그리고 컨설팅 활용의 매개효과를 검증한 결과, 주관적 규범과 과업매체 적합 모두 매개효과가 있는 것으로 검증되었다. 이와 같은 결과는 개인이나 기업들의 SNS의 컨설팅 활용이 주관적 규범과 과업매체 적합에 영향을 미침을 인지하여 SNS를 통해 업무적으로 도움이 되는 대응전략 시사점을 제공한다.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제11권9호
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• pp.391-398
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• 2022

비대면 수업이 지속되면서 학습자의 주의집중에 관한 논의가 계속되고 있다. 대면수업이나 비대면 수업에 상관없이 학습 효과를 높이기 위해서는 학습자의 주의집중이 중요하다. 본 연구에서는 학습자의 주의집중에 영향을 주는 요인 중 하나인 학습자 감정을 고려하여 학습자의 주의집중을 유도하는 모바일 애플리케이션 프로토타입을 개발한다. 학습자가 애플리케이션에 표시된 4가지 감정 중 하나를 선택하면 선택한 감정과 연관된 학습자의 주의집중을 유도하는 활동을 보여준다. 개발한 애플리케이션의 사용성을 평가하기 위해 중·고등학생 32명을 대상으로 애플리케이션을 실행하게 한 후 리커트 5점 척도 설문을 진행한다. '나는 집중력이 생긴다'와 '나는 심리적 안정감이 든다'는 문항의 점수는 각 3.56점, '나는 잡념이 사라진다'는 문항의 점수는 3.6점의 결과를 보임으로써 본 연구에서 개발한 애플리케이션이 학습자의 주의집중을 유도할 가능성이 있다는 것을 보여준다.

• 한국초지조사료학회지
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• 제42권1호
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• pp.47-53
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• 2022

The objective of this study was to verify the effect of pig slurry application with acidification and biochar on feed value, nitrogen use efficiency (NUE) of maize forage, and ammonia (NH₃) emission. The four treatments were applied: 1) non-pig slurry (only water as a control, C), 2) only pig slurry application (P), 3) acidified pig slurry application (AP), 4) acidified pig slurry application with biochar (APB). The pig slurry and biochar were applied at a rate of 150 kg N ha^-1 and 300 kg ha^-1, respectively. The AP and APB treatments enhanced all feed values compared to C and P treatments. The NUE for plant N was significantly increased 92.1% by AP and APB treatment, respectively, compared to the P treatment. On the other hand, feed values were not significantly different between AP and APB treatments. The acidification treatment with/without biochar significantly mitigated NH₃ emission compared to the P treatment. The cumulative NH₃ emission throughout the period of measurement decreased by 71.4% and 74.8% in the AP and APB treatments. Also, APB treatment reduced ammonia emission by 11.9% compared to AP treatment. The present study clearly showed that acidification and biochar can reduce ammonia emission from pig slurry application, and pig slurry application with acidification and biochar exhibited potential effects in feed value, NUE, and reducing N losses from pig slurry application through reduction of NH₃ emission.

• 대한물리의학회지
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• 제12권3호
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• pp.11-21
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• 2017

PURPOSE: The purpose of this study is to identify the immediate effect of posterior pelvic tilt taping on anterior pelvic inclination, gait function, and balance in chronic stroke patients. METHODS: Fourteen chronic stroke subjects were enrolled in this study. Subjects who consented to participate in this cross-over experiment were assigned three interventions: posterior pelvic tilt taping, placebo taping, and no taping, in random order. After tape application, subjects were asked to complete: 1) Anterior pelvic tilt measurement, 2) 10-Meter Walk test, and 3) Limits of stability (LOS) test. To eliminate the learning effect of the tape after tearing off the tape, a 10 minute break was given between posterior pelvic tilt taping intervention and placebo taping intervention. RESULTS: Significant decreases were observed for the anterior pelvic inclination on both sides after posterior pelvic tilt taping application compared with placebo taping and no taping application (p<.05). Post hoc test results differed significantly in the 10-meter walk test after intervention (p<.05). However, there were no significant differences in limits of stability test after intervention (p>.05). CONCLUSION: Posterior pelvic tilt taping in chronic stroke patients decreases the inappropriate anterior pelvic inclination immediately and improves gait function, but it has little effect on balance.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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• pp.653-653
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• 2013

In this study, ITO extended gate reduced graphene oxide field effect transistor (rGO FET) was demonstrated as a transducer for a proton sensing application. In this structure, the sensing area is isolated from the active area of the device. Therefore, it is easy to deposit or modify the sensing area without affecting on the device performance. In this case, the ITO extended gate was used as a gate electrode as well as a proton sensing material. The proton sensing properties based on the rGO FET transducer were analyzed. The rGO FET device showed a high stability in the air ambient with a TTC encapsulation layer for months. The device showed an ambipolar characteristic with the Dirac point shift with varying the pH solutions. The sensing characteristics have offered the potential for the ion sensing application.

• 한국병원경영학회지
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• 제23권2호
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• pp.18-27
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• 2018

Purposes: This study aims to investigate the policy effect of mandatory application of DRG for 7 disease groups in general and tertiary hospitals. Methodology: As DRG was fully implemented in July 2013, this study compares two periods before and after the change(from July 2012 to June 2013, and from July 2013 to June 2014). The benefit claim data of the National Health Insurance Service was used for the comparison. Target patients were those who visited general or tertiary hospitals between July 2012 to June 2014. For pharmaceutical consumption, Interrupted Time Series (ITS) analysis was used to see the effect of DRG mandatory application. Findings: The number of drugs prescribed per patient and pharmaceutical expenditure both showed significant reduction compared to before the DRG implementation. Practical Implications: This study used 2 sets of 1 year period data from before and after the full implementation of DRG to analyze pharmaceutical consumption. When the comparison data accumulates further, it would be possible to conduct more diverse analysis to assess policy effect and to provide way forward for the future.

• The Korean Journal of Physiology and Pharmacology
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• 제22권5호
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• pp.597-605
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• 2018

In this study, we demonstrated the inhibitory effect of the Class Ic antiarrhythmic agent propafenone on voltage-dependent $K^+$ (Kv) channels using freshly isolated coronary artery smooth muscle cells from rabbits. The Kv current amplitude was progressively inhibited by propafenone in a dose-dependent manner, with an apparent $IC_{50}$ value of $5.04{\pm}1.05{\mu}M$ and a Hill coefficient of $0.78{\pm}0.06$. The application of propafenone had no significant effect on the steady-state activation and inactivation curves, indicating that propafenone did not affect the voltage-sensitivity of Kv channels. The application of train pulses at frequencies of 1 or 2 Hz progressively increased the propafenone-induced inhibition of the Kv current. Furthermore, the inactivation recovery time constant was increased after the application of propafenone, suggesting that the inhibitory action of propafenone on Kv current is partially use-dependent. Pretreatment with Kv1.5, Kv2.1 or Kv7 inhibitor did not change the inhibitory effect of propafenone on the Kv current. Together, these results suggest that propafenone inhibits the vascular Kv channels in a dose- and use-dependent manner, regardless of $Na^+$ channel inhibition.

• Journal of Ginseng Research
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• 제34권4호
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• pp.363-368
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• 2010

Allergies are immediate hypersensitive responses to antigens and interleukin (IL)-4 is involved in the initiation and development of allergic responses. $Rb_1$ has been known to have a variety of biological activities including anti-inflammatory activity, but the effect of $Rb_1$ on allergic responses is not known yet. The present study was undertaken to examine whether $Rb_1$ has an inhibitory effect on allergic response in mouse model. In allergic mouse model, our results showed that topical application of $Rb_1$ on atopic dermatitis (AD)-like skin lesions improved skin condition and inhibited starching behaviors. In addition, $Rb_1$ application not only suppressed mRNA expression of IL-4 and IL-10, but also prevented the nuclear factor of activated T cells 1 transcription. Moreover, $Rb_1$ application suppressed IL-4's secretion. Taken together, these results suggest that $Rb_1$ has a potent inhibitory effect in AD-related T cell cytokine production and may be a candidate for therapeutic agent in allergy.