- 作 者: "hua hou"
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Green Separation and Extraction of Isofraxidin from Acanthopanax senticosus Using Deep Eutectic Solvent Synthesized from Choline Chloride and Citric AcidProcesses (IF 3.352) Pub Date : 2023-03-20 ,DOI:10.3390/pr11030943Chang-hai Sun, Jing-hua Hou, Shi-yuan Sun, Yu Zhang, Xin-ran Zhang, Li-ting Mu
Acanthopanax senticosus (Rupr. Maxim.; AS) is a medicinal plant used in the clinical treatment of cerebrovascular diseases and central nervous system disorders, and it significantly improves blood lipid levels and endothelial cell function in patients with acute cerebral infarction. Isofraxidin, one of the active ingredients of AS, is the core of the plant’s medical effects, and its extraction depends
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Effect of minor addition of Co on nonequilibrium solidification of deeply undercooled Cu based alloysMaterials Characterization (IF 4.537) Pub Date : 2023-03-11 ,DOI:10.1016/j.matchar.2023.112800Xiaolong Xu, Yongchao Hao, Qi Wu, Ruifeng Dong, Li Wu, Yuhong Zhao, Hua HouApplying cycle superheating and molten glass purification technologies, Cu55Ni45 and Cu55Ni43Co2 alloys were deeply undercooled to maximum undercoolings of 284 K and 250 K respectively. The microstructure characteristics and its evolution varying with bulk undercooling during the rapidly solidified process were analyzed. It was found that, after minor addition of element Co, refinement mechanisms of ...
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Microstructure refinement mechanisms in undercooled solidification of binary and ternary nickel based alloysJournal of Materials Research and Technology (IF 6.267) Pub Date : 2023-03-08 ,DOI:10.1016/j.jmrt.2023.03.004Xiaolong Xu, Yongchao Hao, Qi Wu, Ruifeng Dong, Yuhong Zhao, Hua Hou
Molten glass purification and cycle superheating technologies were used to make Ni65Cu35, Ni65Cu33Co2 and Ni65Cu31Co4 alloys obtain maximum undercoolings of 320 K, 292 K and 300 K respectively. In order to analyze the relationship between morphological characteristics of solidification front and undercooling change during migration of solid–liquid interface, a high-speed camera was used to capture
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Electrochemical corrosion behavior of AZ91D magnesium alloy-graphene nanoplatelets composites in simulated body fluidsJournal of Materials Research and Technology (IF 6.267) Pub Date : 2023-03-08 ,DOI:10.1016/j.jmrt.2023.01.232Limin Li, Zhiquan Huang, Liwen Chen, Lulu Zhang, Muxi Li, Hua Hou, Yuhong Zhao
Magnesium-based materials have received extensive attention as biomedical implant materials due to their good mechanical properties and ability to degrade naturally in vivo. However, the limitation of magnesium-based materials in medical applications is that the corrosion rate is too rapid to maintain the mechanical integrity of implants during bone healing. The electrochemical corrosion behavior of
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Safety and immunogenicity of aerosolised Ad5-nCoV, intramuscular Ad5-nCoV, or inactivated COVID-19 vaccine CoronaVac given as the second booster following three doses of CoronaVac: a multicentre, open-label, phase 4, randomised trialThe Lancet Respiratory Medicine (IF 102.642) Pub Date : 2023-03-07 ,DOI:10.1016/s2213-2600(23)00049-8Gou, Xi-Ling Guo, Xiao-Qin Chen, Yin Chen, Shi-Po Wu, Jin Zhong, Hong-Xing Pan, Jia-Hong Zhu, Xiao-Yu Xu, Feng-Juan Shi, Zhuo-Pei Li, Jing-Xian Liu, Xiao-Yin Zhang, Lun-Biao Cui, Zhi-Zhou Song, Li-Hua Hou, Feng-Cai Zhu, Tao Zhu
Background Aerosolised Ad5-nCoV is the first approved mucosal respiratory COVID-19 vaccine to be used as a booster after the primary immunisation with COVID-19 vaccines. This study aimed to evaluate the safety and immunogenicity of aerosolised Ad5-nCoV, intramuscular Ad5-nCoV, or inactivated COVID-19 vaccine CoronaVac given as the second booster. Methods This is an open-label, parallel-controlled,
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Computational study of the atmospheric oxidation and global warming potential of thionyl fluorideInternational Journal of Quantum Chemistry (IF 2.437) Pub Date : 2023-03-02 ,DOI:10.1002/qua.27113Keli Gao, Hua Hou, Mi Zhang, Wenjun Zhou, Baoshan WangThionyl fluoride (SOF2) is the dominant decomposition by-product in SF6 under electrical discharges and a novel fluorinating reagent for organic synthesis to replace sulfuryl fluoride (SO2F2). Since both SF6 and SO2F2 are strong green-house gases, for the sake of environmental concern, tropospheric oxidation of SOF2 by OH radicals in the presence of O2 has been investigated using various computational ...
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Study on the Heterogeneous Nucleation Mechanism of SiCp/AZ91 Magnesium Matrix Composites under Pulse Current.Materials (IF 3.748) Pub Date : 2023-02-28 ,DOI:10.3390/ma16051993Xi Hao,Wei Liu,Teng Ma,Weixin Hao,Hua Hou
SiCp/AZ91D magnesium matrix composites with 30% SiCp were successfully prepared by pulsed current melting in this work. Then, the influences of the pulse current on the microstructure, phase composition, and heterogeneous nucleation of the experimental materials were analyzed in detail. The results show that the grain size of both the solidification matrix structure and SiC reinforcement are refined
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Deformation-induced dynamic precipitation of 14H-LPSO structure and its effect on dynamic recrystallization in hot-extruded Mg-Y-Zn alloysInternational Journal of Plasticity (IF 8.5) Pub Date : 2023-02-25 ,DOI:10.1016/j.ijplas.2023.103573Wei Liu, Yuhong Zhao, Yuntao Zhang, Chuan Shuai, Liwen Chen, Zhiquan Huang, Hua HouUnderstanding dynamic precipitation in thermo-mechanical processing can shed light on the manufacturing of high-performance Mg-based alloys. This study investigates the dynamic precipitation of long-period stacking order (LPSO) phase with 14H structure and its effect on dynamic recrystallization (DRX) in the hot-extruded Mg98.5Y1Zn0.5, Mg97Y2Zn1 and Mg94Y4Zn2 (at. %) alloys. First, the simultaneous ...
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Recrystallization behavior and mechanical properties of AZ31B alloy during the hot-rolling processJournal of Materials Research and Technology (IF 6.267) Pub Date : 2023-02-24 ,DOI:10.1016/j.jmrt.2023.02.133Chenhui Li, Hua Hou, Ruifeng Dong, Xiaoyang Zhang, Xiaolong Xu, Yuhong ZhaoIn this work, microstructural characteristics, dynamic recrystallization and mechanical properties of the hot-rolled AZ31B were investigated. The results indicated that the different mechanisms of recrystallization are responsible for the microstructural evolution during the rolling deformation. It was found, as for the specimens with the rolling reduction of 30%, large number of twins are formed within ...
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Prediction models of the ionization coefficient and ionization cross-section based on multi-layer molecular parametersPlasma Science and Technology (IF 1.842) Pub Date : 2023-02-21 ,DOI:10.1088/2058-6272/acac65Rui QIU, Wenjun ZHOU, Yu ZHENG, Hua HOU, Baoshan WANGPrediction models were proposed to estimate the reduced Townsend ionization coefficient and ionization cross-section. A shape function of the reduced Townsend ionization coefficient curves was derived from the ionization collision probability model. The function had three parameters: the first ionization potential energy, A α , and B α . A α and B α were related to the molecule symmetry and size. The ...
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Prevalence and risk factors of belching disorders: A cross-sectional study among freshman college studentsJournal of Digestive Diseases (IF 3.366) Pub Date : 2023-02-13 ,DOI:10.1111/1751-2980.13159Hai Tao Shang, Zhen Ouyang, Can Chen, Chao Fan Duan, Tao Bai, Xiao Hua HouBelching disorders seriously affect quality of life; however, their prevalences and risk factors remain unknown. The aim of our study was to determine the prevalence and risk factors, particularly lifestyle factors, of belching disorders among freshman college students in central China. ...
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Effect of calcium addition on the microstructure, mechanical properties, and corrosion behavior of AZ61-Nd alloyAdvanced Composites and Hybrid Materials Pub Date : 2023-01-28 ,DOI:10.1007/s42114-023-00631-6Zhechao Zhang, Hua Hou, Yuezhong Zhang, Mohamed E. El Sayed, Mohammad N. Murshed, Ahmed Samir, Pengpeng Wu, Changwei Gong, Hui Yong, Guangling Song, Daqing Fang, Deepak Sridhar, Hassan Algadi, Baosheng LiuThe effects of calcium (Ca) elements on the microstructure, mechanical properties and corrosion behavior of extruded AZ61-1Nd-xCa (x = 0, 0.5, 1, 2 wt.%) alloys were investigated. The Al-Nd phase and Al2Ca particles are dynamically precipitated in the extruded alloys. The volume fraction of Al2Ca precipitates increases with the increase of calcium content. Moreover, the addition of calcium can refine ...
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Predicting the hardness of high-entropy alloys based on compositionsInternational Journal of Refractory Metals & Hard Materials (IF 4.804) Pub Date : 2023-01-20 ,DOI:10.1016/j.ijrmhm.2023.106116Qingwei Guo, Yue Pan, Hua Hou, Yuhong ZhaoFeatures calculation and combinatorial screening are necessary and tedious in predicting the hardness of high-entropy alloys by empirical parameters. To simplify the prediction process, we propose a strategy for predicting the hardness of high-entropy alloys based on the compositions to facilitate the rapid design of high-hardness high-entropy alloys. A random forest-based hardness prediction model ...
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Predicting the hardness of high-entropy alloys based on compositionsInternational Journal of Refractory Metals and Hard Materials Pub Date : 2023-01-20 ,DOI:10.1016/j.ijrmhm.2023.106116Qingwei Guo, Yue Pan, Hua Hou, Yuhong ZhaoFeatures calculation and combinatorial screening are necessary and tedious in predicting the hardness of high-entropy alloys by empirical parameters. To simplify the prediction process, we propose a strategy for predicting the hardness of high-entropy alloys based on the compositions to facilitate the rapid design of high-hardness high-entropy alloys. A random forest-based hardness prediction model ...
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Mechanistic and Kinetic Investigations on Decomposition of Trifluoromethanesulfonyl Fluoride in the Presence of Water Vapor and Electric FieldThe Journal of Physical Chemistry A (IF 2.944) Pub Date : 2023-01-10 ,DOI:10.1021/acs.jpca.2c07614Mi Zhang, Hua Hou, Baoshan WangAs a potential insulation gas to replace sulfur hexafluoride (SF6) due to environmental concerns, trifluoromethanesulonyl fluoride (CF3SO2F) has attracted great interests in various high-voltage electric applications. Thermal stability of CF3SO2F plays an important role in the rational design of the gas-insulated electric equipment. Unimolecular decomposition of CF3SO2F was investigated using high-level ...
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Microstructural evolution in graphene nanoplatelets reinforced magnesium matrix composites fabricated through thixomolding processJournal of Alloys and Compounds (IF 6.371) Pub Date : 2023-01-10 ,DOI:10.1016/j.jallcom.2023.168824Liwen Chen, Yuhong Zhao, Jianhui Jing, Hua HouThe distribution characteristic of reinforcements is a critical issue for the final performance of magnesium matrix composites (MMCs). Here, the microstructural evolution of graphene nanoplatelets (GNPs) reinforced MMCs fabricated by thixomolding process was investigated. The GNPs successfully penetrated through the grain boundaries and embedded in two adjacent grains. Those intragranular GNPs/Mg interfaces ...
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Predict the phase formation of high-entropy alloys by compositionsJournal of Materials Research and Technology (IF 6.267) Pub Date : 2022-12-29 ,DOI:10.1016/j.jmrt.2022.12.143Qingwei Guo, Xiaotao Xu, Xiaolong Pei, Zhiqiang Duan, Peter K. Liaw, Hua Hou, Yuhong Zhao
The existing high-entropy alloys' phase formation prediction models are established based on empirical thermophysical parameters. The process is complicated, and the accuracy of the descriptors seriously affects the final prediction results. In this article, we achieve the prediction of phase selection in high-entropy alloys by compositions. The high-entropy alloys compositions are mapped to the p
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Influence of creep aging on structural and mechanical properties of Mg-9Gd-2Nd-0.5Zr alloysJournal of Materials Research and Technology (IF 6.267) Pub Date : 2022-12-22 ,DOI:10.1016/j.jmrt.2022.12.091Simin Shen, Yongpeng Zhuang, Peilin Luo, Hongxia Wang, Ping Chen, Lifei Wang, Weili Cheng, Hua Hou, Kwang Seon Shin
Secondary phase changes after traditional aging and creep aging and corresponding effects on mechanical properties of Mg-9Gd-2Nd-0.5Zr alloys were studied. The results reveal that the presence of stress during the creep aging increases the concentration of dislocations in the alloy and provides abundant nucleus positions for β′ phase, promoting the precipitation rate of β′ phase in the alloy, which
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Effects of stress loading mode on microstructures and properties of Mg-9Gd-2Nd-0.5Zr alloy treated by creep agingJournal of Magnesium and Alloys (IF 11.813) Pub Date : 2022-12-08 ,DOI:10.1016/j.jma.2022.11.002Simin Shen, Yongpeng Zhuang, Ming Li, Hongxia Wang, Lifei Wang, Weili Cheng, Hang Li, Hua Hou, Kwangseon Shin
Creep aging forming (CAF) is a potential process used to manufacture large integral components of magnesium (Mg) alloys. The selected stress plays a crucial role in creep aging processes but the mechanism by which stress loading method affects creep aging of Mg alloys is still unclear. In this paper, the microstructural evolution of precipitated phases and precipitation-free zones (PFZ) at grain boundaries
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Phase-field simulation of nano-α′ precipitates under irradiation and dislocationsJournal of Materials Research and Technology (IF 6.267) Pub Date : 2022-12-01 ,DOI:10.1016/j.jmrt.2022.11.165Wenkui Yang, Xinan Jiang, Xiaolin Tian, Hua Hou, Yuhong Zhao
This is the first investigation on the micromorphology and kinetics evolution of Cr-rich α′ precipitates under Cr composition, irradiation and dislocation with the three-dimensional phase-field simulation. The statistical results of volume fraction, particle number density, and average particle size under different Cr composition are consistent with the APT results. The particle density and volume
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Rhodium-Catalyzed Diastereo- and Enantioselective Divergent Annulations between Cyclobutanones and 1,5-Enynes: Rapid Construction of Complex C(sp3)-Rich ScaffoldsJournal of the American Chemical Society (IF 16.383) Pub Date : 2022-11-18 ,DOI:10.1021/jacs.2c09814Si-Hua Hou, Xuan Yu, Rui Zhang, Cole Wagner, Guangbin DongGiven the emerging demand to “escape from flatland” for drug discovery, synthetic methods that can efficiently construct complex three-dimensional structures with multi-stereocenters become increasingly valuable. Here, we describe the development of Rh(I)-catalyzed intramolecular annulations between cyclobutanones and 1,5-enyne groups to construct complex C(sp3)-rich scaffolds. Divergent reactivities ...
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Microstructure and properties of graphene nanoplatelets reinforced AZ91D matrix composites prepared by electromagnetic stirring castingJournal of Materials Research and Technology (IF 6.267) Pub Date : 2022-11-10 ,DOI:10.1016/j.jmrt.2022.11.033Muxi Li, Qingwei Guo, Liwen Chen, Limin Li, Hua Hou, Yuhong Zhao
Graphene nanoplatelets (GNPs) reinforced AZ91D (GNPs/AZ91D) composites were prepared by semi-solid electromagnetic stirring casting. The microstructure, mechanical properties and strengthening behavior of the composites were investigated. Two types of bonding interfaces were found in the composites: the GNPs/Mg and the GNPs/MgO interface. The GNPs/Mg interface has a high degree of lattice distortion
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The EEG Features of Four Cases of Subacute Sclerosing Panencephalitis in North ChinaClinical EEG and Neuroscience (IF 2.046) Pub Date : 2022-11-06 ,DOI:10.1177/15500594221137050Jiang-Tao Wang, Jie Han, Ming-Guang Wang, Xiao-Hua Hou, Zai-Fen Gao, Yan-Feng Zhang, Jian-Min LiangObjective. To analyze the EEG features of four subacute sclerosing panencephalitis cases in North China. Methods. We retrospectively analyzed the EEG features in four patients with subacute scleros... ...
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Characterization of a thermostable alkaline feruloyl esterase from Alternaria alternata and its synergism in dissolving pulp productionBiochemical Engineering Journal (IF 4.446) Pub Date : 2022-10-10 ,DOI:10.1016/j.bej.2022.108657Yun-Hua Hou, Zhi-Hong Yang, Jing-Zhen Wang, Qin-Zheng YangFeruloyl esterases are of great interest due to their enhancement of the accessibility of xylanase to the backbone of xylan by debranching the side chain decoration of hemicellulose. Alternaria alternata is known for its ability to secrete abundant xylanolytic enzymes, but the pathogenicity greatly limits the production of feruloyl esterase. Herein, we first cloned the thermostable alkaline faeB gene ...
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Investigating the effects of pre-deformation and aging conditions on mechanical properties and SCC resistance of aluminium alloy 7075 via slow strain rate testing and electrochemical polarisationCorrosion Engineering, Science and Technology (IF 1.971) Pub Date : 2022-09-29 ,DOI:10.1080/1478422x.2022.2127465Kuang-Hua Hou, Li-Yuan Hu, Cheng-Yueh Shih, Chin-Chang YangABSTRACT In this study, the effects of pre-deformation on mechanical properties and stress corrosion cracking behaviour of 7075 alloy was investigated with SSRT and electrochemical polarization. The 10% pre-deformation substantially improves the SCC resistance of the 7075 alloys. The strain induced dislocations act as diffusion shortcuts and result in enhanced precipitation and early appearance of ...
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Improved Mechanical Properties of ECAPed Mg-9Gd-2Nd-0.5Zr Alloy Through LPSO Phase Induced by Zn AdditionJOM (IF 2.597) Pub Date : 2022-09-19 ,DOI:10.1007/s11837-022-05508-5Jianzhong Gao, Xiangpeng Zhang, Hongxia Wang, Lifei Wang, Hang Li, Hua Hou, Xiaoping Luo, Kwang Seon ShinThe effect of Zn addition on the microstructure and mechanical properties of Mg-9Gd-2Nd-0.5Zr alloys during equal channel angular pressing (ECAP) was investigated. Uniformly distributed dynamically recrystallized (DRXed) grains with an average grain size of 2.7 ± 0.3 μm were obtained in the ECAPed Mg-9Gd-2Nd-0.5Zr alloy. A large number of Mg5RE phases were found to dynamically precipitate from the ...
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Batch-to-batch consistency trial of an adenovirus type-5 vector-based COVID-19 vaccine in adults aged 18 years and aboveExpert Review of Vaccines (IF 5.683) Pub Date : 2022-09-01 ,DOI:10.1080/14760584.2022.2119133Zhuo-Pei Li, Yun-Feng Shi, Li-Hua Hou, Peng-Fei Jin, Shi-Hua Ma, Hong-Xing Pan, Jin-Long Zhang, Yong-Mei Shan, Hai-Tao Huang, Shi-Po Wu, Pan Du, Xue Wang, Li-Li Wang, Rui-Jie Wang, Ying Wang, Xue-Wen Wang, Feng-Cai Zhu, Jing-Xin LiABSTRACT Background The demonstration of batch-to-batch consistency is indispensable for quality control of vaccines. Methods We conducted a randomized, double-blind, parallel-controlled trial to evaluate the immunogenicity consistency of a single shot of Ad5-nCoV in healthy adults who had not previously received any COVID-19 vaccine. All eligible participants were randomly assigned equally to receive ...
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Dealloying-Derived Porous Spinel Oxide for Bifunctional Oxygen Electrocatalysis and Rechargeable Zinc-Air Batteries: Promotion of Activity Via Hereditary Al-DopingChemSusChem (IF 9.14) Pub Date : 2022-08-30 ,DOI:10.1002/cssc.202201518Mei Wang, Yi Long, Huifang Zhao, Wenjuan Zhang, Liyong Wang, Ruifeng Dong, Hua Hou, Huiqi Wang, Xiaoguang WangAl you need: Dealloying of Al from mother alloy Al85NixCo15−x (x=5, 7.5, 10) synergistically promotes bifunctional electrocatalytic activities for oxygen reduction and evolution reactions (ORR/OER) as well as rechargeable zinc-air battery performance. Density functional theory results verify that Al doping can change the rate-determining step and significantly reduce the energy barrier of ORR/OER. ...
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Underwater sound absorption performance of exponential gradient anechoic coatingModern Physics Letters B (IF 1.948) Pub Date : 2022-08-26 ,DOI:10.1142/s0217984922501263Teng-Fei Si, Zhen-Hua Hou, Tian-Ge Li, Zhi-Jun ZhangIn this paper, the gradient anechoic coating whose density changes exponentially along direction of thickness is investigated. A numerical model is established by finite element method (FEM) to analyze the underwater sound absorption performance under different density distribution. The calculation results show that the exponential anechoic coating has better sound absorption performance compared with ...
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Massive gastrointestinal bleeding after endoscopic rubber band ligation of internal hemorrhoids: A case report.World Journal of Clinical Cases (IF 1.534) Pub Date : 2022-8-19 ,DOI:10.12998/wjcc.v10.i19.6656Yu-Dong Jiang, Ying Liu, Jian-Di Wu, Gang-Ping Li, Jun Liu, Xiao-Hua Hou, Jun Song
Rubber band ligation (RBL) using rigid anoscope is a commonly recommended therapy for grade I-III symptomatic internal hemorrhoids. Severe complications of RBL include pain, hemorrhage and sepsis. Flexible endoscopic RBL (ERBL) is now more commonly used in RBL therapy but few severe complications have been reported. Here we report on a case of massive bleeding after ERBL.
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