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- 저자 : Yabo Wang (검색결과 5 건)
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Building Waste Output Forecasting Model based on Gray Metabolism GM (1,1)
Yabo He,Wang Hongtao,Yang Lin,Qin Wei4 보안공학연구지원센터 2016 International Journal of Smart Home Vol.10 No.2
With the increase of construction investment and urbanization, building waste output in our country is huge. This paper first constructs a set based on the construction area and per unit area of garbage generated quantity of urban building waste estimation method, then using grey system theory prediction and analysis of the next four years of building waste output. By the introduction of metabolic thought, the grey metabolic GM (1,1) forecast model was constructed, overcoming the shortages of conventional GM (1, 1) model. Prediction results show that the model is higher than the conventional GM (1,1) model prediction accuracy, which is suitable for the prediction of the short term of building waste in our country and for the treatment and reuse of building waste to provide certain reference.
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Yang Zou,Tao Zhang,Guannan Wang,Mengwen Zhou,Yabo Xiong,Shaoyun Huang,Houbin Li,Xinghai Liu 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-
3,3,7,7-tetrakis(difluoroamino) octahydro-1,5-dinitro-1,5-diazocine (HNFX) is a high-density energeticoxidizer with four difluoroamino groups (-NF2). In this study, 1,5-ditosyl-1,5-diazocane-3,7-dione, as animportant intermediate for synthesis of HNFX, was successfully synthesized using Swern oxidation in atraditional batch reactor and a continuousflow microreactor, respectively. 1,5-dotosyl-1,5-diazocane-3,7-dione was characterized by HPLC, FTIR, 1H NMR, 13C NMR, Mass spectrometry, and X-ray crystaldiffraction. Compared with the traditional batch reactor, the microreactor showed several advantages,including less reaction time, milder reaction temperature, higher yield and selectivity for 1,5-ditosyl-1,5-diazocane-3,7-dione. Moreover, the microreactor could ensure the safer and large-scale industrialproduction of 1,5-ditosyl-1,5-diazocane-3,7-dione. However, some solids produced in Swern oxidationwhich might block the channels (diameter of 0.3 mm) in the microreactor. To overcome the challenges,the experimental device was modified to suit for Swern oxidation, contributing to wider application ofthe microreactor. Besides, response surface methodology (RSM) was introduced and an appropriatemathematical model was built to optimize experimental conditions. The optimum experimentalparameters were recommended as 7.8 C for the reaction temperature, 7.7 mL/min for theflow rate, and6% for the concentration of oxalyl chloride. The actual yield of 1,5-ditosyl-1,5-diazocane-3,7-dione was89.7%, which was in great agreement with the highest predicted yield (90.1%).
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Shouke Zhang,Yaning Liu,Jinping Shu,Wei Zhang,Yabo Zhang,Haojie Wang 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.1
Wireworms are recognized as economically important oligophagous pests of Phyllostachys bamboo shoot, which have caused a huge economic loss in South China. Studies of bamboo shoot wireworm control and management were seriously hampered by the lack of reliable identification of larvae. DNA barcoding has been proved to be an important and useful tool in species identification of morphologically cryptic insects. Accurate knowledge of damage-causing species and the phylogenic structure of elaterids will provide insight into their sustainable and effective management. Here, we use interspecific variation in COI and EF1-a as a robust method of identification and consider the intra- and interspecific genetic variation of bamboo wireworms. This approach has revealed that three Melanotus larvae occurred in Phyllostachys forest. The dominance of one species in different sampling location suggests there maybe underlying difference in habit and host plant preference. These data provide a starting point for determining the distribution of wireworm species feeding on bamboo shoots in South China. The inclusions would further aid identification of wireworm species and relationships between certain wireworm species with specific environments.
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Synthesis and Optical Characteristics of PAM/HgS Nanocomposites
Dezhi Qin,Guangrui Yang,Li Zhang,Xian Du,Yabo Wang 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.4
Polyacrylamide (PAM) -HgS nanocomposites were successfully prepared in polyacrylamide (PAM) matrix. From TEM and XRD characterizations, the synthesized HgS nanocrystals were chain-like spherical in shape with a diameter of about 40-60 nm and high crystalline quality. The quantum-confined effect of HgS nanocrystals was confirmed by UV-vis diffuse reflection spectra. The optical properties of products were investigated by using photoluminescence (PL) spectra, which showed that HgS nanocrystals exhibited good optical properties with maximum emission peak at about 640 and 650 nm at different reaction temperatures. The interaction of HgS nanocrystals with PAM was studied through FT-IR spectroscopy and TG analysis, which suggested that Hg2+ could interact with functional groups of PAM. The experimental results indicated that PAM not only induced nucleation, but also inhibited further growth of HgS crystals and play an important role in the formation of PAM/HgS nanocomposites. In addition, the possible mechanism of HgS nanoparticles growth in PAM solution was also discussed.
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Synthesis and Optical Characteristics of PAM/HgS Nanocomposites
Qin, Dezhi,Yang, Guangrui,Zhang, Li,Du, Xian,Wang, Yabo Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.4
Polyacrylamide (PAM) -HgS nanocomposites were successfully prepared in polyacrylamide (PAM) matrix. From TEM and XRD characterizations, the synthesized HgS nanocrystals were chain-like spherical in shape with a diameter of about 40-60 nm and high crystalline quality. The quantum-confined effect of HgS nanocrystals was confirmed by UV-vis diffuse reflection spectra. The optical properties of products were investigated by using photoluminescence (PL) spectra, which showed that HgS nanocrystals exhibited good optical properties with maximum emission peak at about 640 and 650 nm at different reaction temperatures. The interaction of HgS nanocrystals with PAM was studied through FT-IR spectroscopy and TG analysis, which suggested that $Hg^{2+}$ could interact with functional groups of PAM. The experimental results indicated that PAM not only induced nucleation, but also inhibited further growth of HgS crystals and play an important role in the formation of PAM/HgS nanocomposites. In addition, the possible mechanism of HgS nanoparticles growth in PAM solution was also discussed.
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