Seasonal variation in particle contribution and aerosol types in Shanghai based on satellite data from MODIS and CALIOP

Liu, Qiong; Liu, Xin; Liu, Tongqiang; Kang, Yanming; Chen, Yonghang; Li, Jiming; Zhang, Hua

doi:10.1016/j.partic.2019.10.001

Cited by 24 publications

(17 citation statements)

References 47 publications

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“…The absorbance of the nanofluid with the ratio of nonionic and anionic surfactants (1 ∶ 9) to (9 ∶ 1) and the carbon tube mass fraction of 0.1% was determined to optimize the surfactant formulation. The absorbance of nanofluids with carbon tube mass fraction of 0.1% and complex active agent mass fraction of 0.02% ∼ 1.2% was measured to determine the appropriate concentration of complex active agent [ 12 ]. The above test temperature was 20°C, and CNTs were acidified for 6 h.…”

Section: Methodsmentioning

confidence: 99%

Influence of Nano-Cutting Fluid in New Cutting and Forming Processes on Heat Transfer Performance of Mechanical Engineering

Liu

2022

International Journal of Analytical Chemistry

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In order to strengthen the thermal conductivity of green cutting fluid and the influence of nano-cutting fluid from new cutting and forming processes on heat transfer performance of mechanical engineering, a research method was proposed based on the influence of nano-cutting fluid from new cutting and forming processes on heat transfer performance of mechanical engineering. The dispersion stability, thermal conductivity, and viscosity characteristics of the nanofluid were studied, and the effects of acidification treatment time, type and concentration of carbon tube particles, surfactants, and testing conditions on the above properties were analyzed. It was found that the filling rate of T321 was about 25% when CNTs were filled, and the optimal compounding ratio of the two surfactants, sodium dodecyl benzenesulfonic acid (SDBS) and Tween-80 (TW-80), for the preparation of stable dispersed nanofluids was 3 ∶ 7. The optimum ratio of compound active agent to carbon tube is 5 ∶ 1. When CNTs were acidified for about 9 h and dispersed in sufficient and stable condition, the thermal conductivity of the base liquid was increased by 110% by the composite, and the shape factor of CNTs had the most significant effect on the thermal conductivity. It was found that the composite nanofluids had higher thermal conductivity and lower viscosity than the nanofluids prepared by ordinary CNTs. This was due to the fact that surfaces of CNTs were chemically modified during the opening and internal filling process, so that the composite had better dispersion stability in the base fluid.

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Section: Methodsmentioning

confidence: 99%

Influence of Nano-Cutting Fluid in New Cutting and Forming Processes on Heat Transfer Performance of Mechanical Engineering

Liu

2022

International Journal of Analytical Chemistry

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“…Among them, the larger the stress and the smaller the deformation, the better the effect of the three-dimensional integrated graphic design of the ship. On the contrary, the smaller the stress and the greater the deformation of the three-dimensional integrated graphic design of the ship, the less effective the three-dimensional integrated graphic design of the ship is [ 21 ].…”

Section: Methodsmentioning

confidence: 99%

Application of Computer 3D Modeling Technology in Graphic Image Design

Liu

2022

Computational Intelligence and Neuroscience

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In order to solve the problem that the manual input data work efficiency is low and the optimization cannot be achieved in the section modulus calculation, the author proposes a computer-aided 3D graphic design method for ship hull structure. First, complete the modeling of the ship hull, complete the statistical calculation of the size in the CAD platform, solve the static moment, and complete the three-dimensional modeling; Calculate the inertial load and wave load of the ship during work, and calculate the wave bending moment, and substitute it into the three-dimensional model for verification. Finally, according to the computer-aided three-dimensional graphic design process, the specification verification of the ship’s scale is completed, the graphic file is associated with the database, and the three-dimensional graphic design is completed. Experimental results show that the maximum stress of the original three-dimensional integrated graphic design of the ship is 202 MPa, and the maximum deformation is 87.352 mm. Based on the computer-aided three-dimensional integrated graphic design of the ship, the maximum stress is 226 MPa, and the maximum deformation is 76.234 mm. In conclusion: the hull obtained by the computer-aided three-dimensional graphic design of the ship can effectively reduce the total area and materials of the midsection structure of the ship, reduce the weight of the hull, and realize the optimal configuration of the midsection material of the ship.

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“…When updating the cluster center, the classification matrix is unchanged. Similarly, when updating the classification matrix, the cluster center is unchanged [22]. The flow chart of IPCM algorithm is shown in Figure 4.…”

Section: Journal Of Sensorsmentioning

confidence: 99%

Application of Sensor and Fuzzy Clustering Algorithm in Hybrid Recommender System

Zhu

2022

Journal of Sensors

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In order to solve the problem of topic drift and topic enlargement in hybrid recommendation system, a possibility C clustering algorithm based on fuzzy clustering, namely, IPCM (improved possible clustering method) algorithm, is proposed. This method improves the initial value sensitivity of PCM algorithm and introduces the user interest model into the initial matrix, so that the results obtained by the convergence of IPCM algorithm are closer to the recommended topics required by users. The recommended technology algorithm is also fused by learning from each other to form a fusion recommendation algorithm. The fusion recommendation algorithm and IPCM algorithm are applied to the result sorting, and the accuracy of the applied results is compared with that of the traditional PageRank algorithm, so as to judge the accuracy of the algorithm. The feasibility and superiority of the algorithm are verified by experiments. The experimental results show that IPCM algorithm can speed up the search for useful information and reduce the search time. Moreover, when the query range is reduced, the accuracy of the algorithm is higher than that of the traditional algorithm, which can be improved by 10% ~30%. Conclusion. This method can effectively make up for the problems of topic drift and topic enlargement in the recommendation system, with faster speed and higher accuracy.

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Seasonal variation in particle contribution and aerosol types in Shanghai based on satellite data from MODIS and CALIOP

Cited by 24 publications

References 47 publications

Influence of Nano-Cutting Fluid in New Cutting and Forming Processes on Heat Transfer Performance of Mechanical Engineering

Influence of Nano-Cutting Fluid in New Cutting and Forming Processes on Heat Transfer Performance of Mechanical Engineering

Application of Computer 3D Modeling Technology in Graphic Image Design

Application of Sensor and Fuzzy Clustering Algorithm in Hybrid Recommender System

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