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RISS 인기검색어
- 검색키워드
- 저자 : Hongpeng Xiong (검색결과 3 건)
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Wenquan Qin,Hongpeng Xiong,YuzhenWen,XiujunWen,HuiWang,Yihan Fang,TaoMa,Zhaohui Sun,Xiaoyang Chen,Cai Wang 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.2
Baiting is widely applied for the detection and control of the red imported fire ants, Solenopsis invicta Buren. Adding preservatives into baits would prevent microbial contamination during production and storage, and might extend period of bait attractiveness in the field. However, it is not known if preservatives are repellent to S. invicta. In the present study, potential effects of six commonly used preservatives (potassiumsorbate, sodium benzoate, sodium diacetate, sodium dehydroacetate, calcium propionate, and nisin) on the foraging behaviors of S. invicta foragers were evaluated under laboratory and field conditions. Four-choice tests (laboratory study) showed that the number of foraging ants on the preservative-treated (immersed in 2000-, 5000-, or 10,000-ppm solution for 30 min) and control (immersed in distilled water for 30 min) food was similar, with an exception of sodium dehydroacetate, which significantly decreased the number of foraging ants at the three tested concentrations. Interestingly, 46%, 58% and 71% of the food items treated with 2000-, 5000- and 10,000- ppm solutions of sodium dehydroacetate were buried with soil particles, respectively, whereas only 17% of the control food was similarly buried. Multiple-choice tests (field study) showed that food treated with the 5000- or 10,000-ppm solution of sodium dehydroacetate attracted significantly fewer S. invicta workers compared to other preservatives and the controls. Our study showed that the use of sodiumdehydroacetate should be avoided during the production of aqueous-based or liquid baits against S. invicta.
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Shuai Guo,Xiaoyan Xiong,Deyong Che,Hongpeng Liu,Baizhong Sun 한국화학공학회 2021 Korean Journal of Chemical Engineering Vol.38 No.1
In view of the importance of inert-atmosphere sludge pyrolysis for effective waste recycling and carbon emission reduction, this study probed the effects of temperature (300-700 oC) and atmosphere (100% N2, 10 CO2/90% N2, or 100% CO2) on the properties of biochar and gases obtained by sludge pyrolysis in a horizontal tube furnace. The emissions of NO, SO2, H2S, and CO increased with increasing temperature, as the inhibitory effect of CO2 on the formation of these gases (observed at <500 oC) concomitantly weakened and was superseded by the reaction of CO2 with carbon at higher temperature to afford gaseous products. The specific surface area (SBET) and pore volume of the biochar produced in the presence of CO2 increased with increasing temperature up to 500 oC, while at higher temperatures the inhibitory effect of CO2 on pore structure development resulted in a decreased SBET and an increased macropore content. These results show that pyrolysis is an effective treatment method for sludge; it can remove 48% N and 50% S in sludge and mitigate the emission of polluting gases. When CO2 participates in the pyrolysis reaction, the SBET of biochar increases significantly. In general, sludge biochar has the potential to be applied as fuel and as an adsorbent.
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Huifang Wang,Shiping Liang,TaoMa,Qiang Xiao,Panrong Cao,Xuan Chen,Wenquan Qin,Hongpeng Xiong,Zhaohui Sun,XiujunWen,Cai Wang 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.2
Ectropis grisescens Warren (Lepidoptera: Geometridae) is an important defoliator pest of the tea plant, Camellia sinensis L. Our previous studies showed that E. grisescens pupae had significantly lower body water content when they pupated in the dry soil (20%-moisture) than those that pupated in the wetter soil (50%- or 80%-moisture). However, it is still unclear whether low-moisture conditions during pupating would further influence the physiological and fitness traits of adults. In the present study, E. grisescens individuals were allowed to pupate in 20%-, 50%- or 80%-moisture soil (silt loam), or in containers without soil (no-substrate conditions) in the laboratory. No significant difference in emergence was detected among different pupating conditions. However, female moths that emerged from 20%-moisture soil had significantly lower body water content compared to 80%-moisture soil, whereas the body water content of males was similar among the four treatments. The paired moths that emerged from 20%-moisture soil laid significantly fewer eggs than those that emerged from 50%- moisture soil. In addition, the number of hatched offerings (larvae) were significantly less when the adults previously pupated in no-soil containers compared to 50%-moisture soil. The longevity of adults was shortest when they emerged from 20%-moisture soil. Our study showed that the no-substrate and low-moisture conditions during pupating adversely affected E. grisescens adults.
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