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강화된 BMS를 통한 스마트팜용 자율주행로봇의 주행성능 향상
이종명(Jong-Myoeng Lee),김진솔(Jin-Sol Kim),노영진(Young-Jin Roh),김선화(Seon-Hwa Kim),강마루(Ma-Ru Kang) 대한기계학회 2023 대한기계학회 춘추학술대회 Vol.2023 No.11
TSmall electric agricultural transport vehicles can increase the work efficiency of the majority of domestic farms operating on a small scale. In addition, the aging of the agricultural population has increased the convenience of work, leading to steady growth in demand. However, if the operation is stopped due to battery discharge or malfunction while operating within the farmland, it actually becomes a factor that interferes with cultivation activities. Additionally, it can act as a risk factor in agricultural work. Therefore, the possibility of battery discharge is reduced by applying the aging factor to the Boltzmann model derived from charge-discharge data to calculate SOC considering the remaining capacity. In conclusion, research was conducted to predict the maintenance time of the electric system (battery) to prevent accidental operation stoppage during farming activities and to increase the safety of agricultural work.
Choi Jin Ho,Lee Sang Hyub,Kim Joo Seong,Park Namyoung,Lee Myoeng Hwan,Lee Min Woo,Cho In Rae,Paik Woo Hyun,Ryu Ji Kon,Kim Yong-Tae 거트앤리버 소화기연관학회협의회 2023 Gut and Liver Vol.17 No.5
Background/Aims: The combinatorial effects of prophylactic methods for postendoscopic retrograde cholangiopancreatography pancreatitis (PEP) in patients with risk factors remain unclear. In this network meta-analysis, we compared the efficacy of various prophylactic strategies to decrease the risk of PEP among patients with risk factors. Methods: A systematic review was performed to identify randomized controlled trials from PubMed, Embase, and the Cochrane Library through July 2021. We used frequentist network meta-analysis to compare the rates of PEP among patients who received prophylactic treatments as follows: class A, rectal nonsteroidal anti-inflammatory drugs; class B, prophylactic pancreatic stent; class C, aggressive hydration; or control, no prophylaxis or active control. We selected those studies that included patients with risk factors for PEP. Results: We identified 19 trials, comprising 4,328 participants. Class ABC (odds ratio [OR], 0.08; 95% confidence interval [CI], 0.03 to 0.24), class AC (OR, 0.10; 95% CI, 0.02 to 0.47), class AB (OR, 0.12; 95% CI, 0.05 to 0.26), class BC (OR, 0.13; 95% CI, 0.04 to 0.41), class A (OR, 0.16; 95% CI, 0.05 to 0.50), and class B (OR, 0.26; 95% CI, 0.14 to 0.46), were associated with a reduced risk of PEP as compared to that of the control. The most effective prophylaxis was ABC (0.87), followed by AC (0.68), AB (0.65), BC (0.56), A (0.49), and B (0.24) according to P-score. Conclusions: The results of this network meta-analysis suggest that the more prophylactic methods are employed, the better the outcomes. It appears that for patients with risk factors, we need to prevent PEP through the use of these well proven combination strategies.
Jong-Kook Jung,Hyoseok Lee,Myoeng-Jin Jang,Dong Yeon Suh,Chan Sik Jung,Sang-Hyun Koh 한국응용곤충학회 2016 한국응용곤충학회 학술대회논문집 Vol.2016 No.10
Non-target predatory insects can be indirectly exposed to aerial pesticide spraying and fogging to control Monochmus beetles that transmit pine wood nematode, Bursaphelenchus xylophilus. We evaluated potential lethal or sublethal effects of thiacloprid on survival and behavior of a carpenter ant species, Camponotus japonicus Mayr. Field-collected ant colonies were directly exposed to several food items, such as thiacloprid-addicted Monochmus beetles, 10% sugar watered cotton balls contaminated by thiacloprid concentrations, and 10% sugar water. Dead beetle bodies caused no apparent adverse effect through dietary exposure in general, although a few ants were died with paralysis at colony level experiment. At individual level, most ant workers were died within 10 days compared to control group. In contrast, dietary exposure of ants to thiacloprid concentrations showed significant lethal effect with paralysis and impaired walking, especially at 10 and 50 mg/L thiacloprid concentrations. Some intoxicated ants recovered within a few days in 10 and 50 mg/L thiacloprid concentrations, but intoxicated ants were generally shown to be less responsible to enemy ants with low aggressive behavior. Implications for predicting hazards of thiacloprid to beneficial arthropods in pine forests are discussed.