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| 1 | Discrete Variable Structural Optimization based on Multidirectional Fuzzy Genetic Algorithm显示文摘Round method is the common method for discrete variable optimization in optimal design of complex mechanical structures;however,it has some disadvantages such as poor precision,simple model and lacking of working conditions' description,etc.To solve these problems,a new model is constructed by defining parameterized fuzzy entropy,and the rationality of parameterized fuzzy entropy is verified.And a new multidirectional searching algorithm is further put forward,which takes information of actual working conditions into consideration and has a powerful local searching capability.Then this new algorithm is combined with the GA by the fuzzy clustering algorithm(FCA).With the application of FCA,the optimal solution can be effectively filtered so as to retain the diversity and the elite of the optimal solution,and avoid the structural re-analysis phenomenon between the two algorithms.The structure design of a high pressure bypass-valve body is used as an example to make a structural optimization by the proposed HGA and finite element method(FEM),respectively.The comparison result shows that the improved HGA fully considers the characteristic of discrete variable and information of working conditions,and is more suitable to the optimal problems with complex working conditions.Meanwhile,the research provides a new approach for discrete variable structure optimization problems. | LAI Yinan DAI Ye BAI Xue CHEN Dongyan | 2012 | Chinese Journal of Mechanical Engineering2012，25，2： | 12 |
| 2 | Hydrogen generation from methanolysis of sodium borohydride over Co/Al_2O_3 catalyst显示文摘Co/Al2O3 catalyst is prepared with an impregnation-chemical reduction method and used to catalyze the methanolysis of sodium borohydride (NaBH 4) for hydrogen generation.At solution temperature of 0 C,the methanolysis reaction can be effectively accelerated using Co/Al2O3 catalyst and provide a desirable hydrogen generation rate,which makes it suitable for applications under the circumstance of low environmental temperature.The byproduct of methanolysis reaction is analyzed by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR).The characterization results indicate that methanol can be easily recovered after methanolysis reaction by hydrolysis of the methanolysis byproduct,NaB(OCH 3) 4.The catalytic activity of Co/Al2O3 towards NaBH 4 methanolysis can be further improved by appropriate calcination treatment.The catalytic methanolysis kinetics and catalyst reusability are also studied over the Co/Al2O3 catalyst calcined at the optimized temperature. | Dongyan Xu Lin Zhao Ping Dai Shengfu Ji | 2012 | Journal of Natural Gas Chemistry2012，21，5： | 3 |
| 3 | Ultrafine PdAg alloy nanoparticles anchored on NH2-functionalized 2D/2D TiO_(2) nanosheet/rGO composite as efficient and reusable catalyst for hydrogen release from additive-free formic acid at room temperature显示文摘A 2 D-2 D titanium dioxide nanosheet-reduced graphene oxide(TNS-r GO)composite with better electronic conductivity and hydrophilicity was prepared by the hydrothermal method.The as-obtained TNS-r GO composite was further functionalized with 3-aminopropyltriethoxysilane(APTES)to provide a large amount of-NH2 groups on the surface for anchoring ultrafine Pd Ag alloy nanoparticles with an average particle size of 1.69 nm by a facile wet reduction approach.Benefiting from the combined effects of well-dispersed Pd Ag alloy nanoparticles,facilitated electron transfer from TNS-r GO to Pd,and increased electron density of active sites,the Pd8 Ag_(1)/NH_(2)-TNS-r GO catalyst exhibited excellent activity towards dehydrogenation of formic acid without adding any additives at 298 K,corresponding to an initial turn over frequency as high as 1090 h-1,which is much higher than that of most other state-of-theart catalysts. | Xi Zhao Ping Dai Dongyan Xu Xumei Tao Xien Liu Qingjie Ge | 2021 | Journal of Energy Chemistry2021，30，8： | 1 |
| 4 | Expression Regulation of Starch and Storage Protein Synthesis Related Genes in Rice Grains显示文摘Starch and the storage proteins are the main nutritious substances in crop grains,and their composition and content in grains play a decisive role in the grain quality of rice and other staple food crops.This review has mainly summarized the new advances in the expression regulation of starch and storage protein synthesis related genes in rice grains.Moreover,the challenges of the starch and storage protein synthesis substances in rice genetic improvement were also discussed.This review will provide important information for genetic improvement of grain quality in rice and,potentially,other staple cereals. | Bo PENG Dongyan KONG Yu PENG Lulu HE Yue JIANG Jingbo YU Mengshi SUN Qin DAI Yuchen LIU Qingqing XIN Ruihua PANG Yanfang SUN Xiaohua SONG Huilong LI Juan PENG Qiying ZHOU Jintao LI Quanxiu WANG Bin DUAN Shizhi SONG Hongyu YUAN | 2019 | Asian Agricultural Research2019，11，1： | 0 |
| 5 | Rongchang and Xifeng capsules suppress pentylenetetrazole-induced seizures and change rest/wake behavior in zebrafish larvae显示文摘OBJECTIVE:To evaluate the effects of Rongchang capsule and Xifeng capsule on pentylenetetrazoleinduced epilepsy in zebrafish larvae and to explore the possible mechanisms behind their actions.METHODS:We utilized a trajectory tracking system to monitor seizures in zebrafish larva to confirm that certain concentrations of Rongchang capsule and Xifeng capsule produce antiepileptic effects.c-fos expression was assessed by quantitative reverse transcription-polymerase chain reaction to validate the efficacy of the capsules.Rest/wake behavior and correlation analysis predicted the targets of Rongchang capsule and Xifeng capsule.RESULTS:Larval movement times and total distances traveled by zebrafish larvae experiencing pentylenetetrazole(PTZ)-induced seizures were decreasedbyvalproatetreatment.Rongchang(500μg/m L)and Xifeng(200μg/m L)rescued the epileptic behaviors and down-regulated c-fos expression in the brains of larvae,which indicated antiepileptic effects.The rest/wake behavioral profiles showed that Rongchang and Xifeng differentially decreased rest time at night and increased larval locomotor activities during the day.Based on correlation between the actions of the two capsules and known compounds,we predicted that they might change rest/wake behaviors by affecting serotonin,GABAergic and histamine signaling pathways.CONCLUSION:The efficacy of Rongchang capsule and Xifeng capsule in alleviating epilepsy-like behaviors and molecular responses was confirmed.Our study provides insight into the capsules'effect on epilepsy. | Zhang Shuhui Xu Jia Wang Chao Feng Daofu Dai Liangti Kuang Xiangyu Zhu Shuyi Fang Yongchun Chen Dongyan He Xianghui Feng Xizeng | 2019 | Journal of Traditional Chinese Medicine2019，39，6： | 0 |
| 6 | Protocol-Based Non-Fragile State Estimation for Delayed Recurrent Neural Networks Subject to Replay Attacks显示文摘Dear Editor, This letter focuses on the protocol-based non-fragile state estimation problem for a class of recurrent neural networks(RNNs). With the development of communication technology, the networked systems have received particular attentions. The networked system brings advantages such as easy to implement. | Fan Yang Hongli Dong Yuxuan Shen Xuerong Li Dongyan Dai | 2024 | IEEE/CAA Journal of Automatica Sinica2024，11，1： | 0 |
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