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| 1 | The Durability of Alkali-Activated Materials in Comparison with Ordinary Portland Cements and Concretes:A Review显示文摘China is the largest producer and user of ordinary Portland cement(OPC),and the rapid growth of infrastructure development demands more sustainable building materials for concrete structures.Alkali-activated materials(AAMs)are a new type of energy-saving and environmentally friendly building material with a wide range of potential applications.This paper compares the durability of AAMs and 0 PC-based materials un der sulfate attack,acid corrosion,carb on ation,and chloride penetratio n.Different AAMs have shown distinct durability properties due to different compositions being formed when different raw materials are used.According to the calcium(Ca)concentration of the raw materials,this paper interprets the deterioration mechanisms of three categories of AAMs:calcium-free,low-calcium,and calcium-rich.Conflicts found in the most recent research are highlighted,as they raise concerns regarding the consistenee and long-term properties of AAMs.Nevertheless,AAMs show better durability performances than OPC-based materials in general. | Aiguo Wang Yi Zheng Zuhua Zhang Kaiwei Liu Yan Li Liang Shi Daosheng Sun | 2020 | Engineering2020，6，6： | 13 |
| 2 | The morphotectonics and its evolutionary dynamics of the central Southwest Indian Ridge (49° to 51°E)显示文摘The morphotectonic features and their evolution of the central Southwest Indian Ridge(SWIR)are discussed on the base of the high-resolution full-coverage bathymetric data on the ridge between 49°–51°E.A comparative analysis of the topographic features of the axial and flank area indicates that the axial topography is alternated by the ridge and trough with en echelon pattern and evolved under a spatial-temporal migration especially in 49°–50.17°E.It is probably due to the undulation at the top of the mantle asthenosphere,which is propagating with the mantle flow.From 50.17°to 50.7°E,is a topographical high terrain with a crust much thicker than the global average of the oceanic crust thickness.Its origin should be independent of the spreading mechanism of ultra-slow spreading ridges.The large numbers of volcanoes in this area indicate robust magmatic activity and may be related to the Crozet hot spot according to RMBA(residual mantle Bouguer anomaly).The different geomorphological feature between the north and south flanks of the ridge indicates an asymmetric spreading,and leading to the development of the OCC(oceanic core complex).The tectonic activity of the south frank is stronger than the north and is favorable to develop the OCC.The first found active hydrothermal vent in the SWIR at 37°47′S,49°39′E is thought to be associated with the detachment fault related to the OCC. | LIANG Yuyang LI Jiabiao LI Shoujun RUAN Aiguo NI Jianyu YU Zhiteng ZHU Lei | 2013 | Acta Oceanologica Sinica2013，32，12： | 7 |
| 3 | Study on Quantitative Relationship between Surface Wettability and Frictional Coefficient of Liquid Flowing in a Turbulent Horizontal Pipe显示文摘This paper had investigated the effects of surface wettability on the frictional resistance of turbulent horizontal flow for tap water in five pipes made of various materials and four kinds of liquids in a polytetrafluoroethylene(PTFE) pipe,with the same inner diameter of 14 mm. Pressure drops were measured under different flow rates through an experimental flow loop. The contact angles and adhesion work of liquids in contact with pipe surfaces were determined using a contact angle meter. Based on the dimension and regression analyses, two kinds of modified relationships between the frictional coefficient and the surface wettability were established according to the measured results corresponding to tap water in five pipes and four liquids in PTFE pipe. The experimental results show that the surface wettability has some influence on frictional coefficient of the studied liquids flowing in macroscale pipes, and the frictional coefficient decreases with the increase of the contact angle at the same Reynolds number. Meanwhile the effect of wettability on the hydrophobic surface is greater than that on the hydrophilic one. The frictional coefficients predicted by the modified formulas have verified to be in good agreement with the experimental values, the relative errors of which are within ±6% and ±3% for the tap water flowing in five different pipes and four kinds of liquids flowing in PTFE pipe, respectively. | Jing Jiaqiang Qi Hongyuan Jiang Huayi Liang Aiguo Shi Jianying Wang Yulong Sun Nana Zhang Yixiang | 2017 | China Petroleum Processing & Petrochemical Technology2017，19，3： | 4 |
| 4 | Five-year follow-up of 23 asymmetrical Parkinson's disease patients treated with unilateral subthalamic nucleus stimulation显示文摘In this study, 23 asymmetrical Parkinson's disease patients were treated with unilateral deep brain stimulation of the subthalamic nucleus and followed up for 5 years. At 5 years after stimulation treatment, Unified Parkinson's Disease Rating Scale II, III and axial symptom scores in the off-drug condition were significantly increased compared those at baseline. However, total Unified Parkinson's Disease Rating Scale II, III and axial symptom scores were significantly lower with stimulation-on compared with the synchronous stimulation-off state in off-drug condition, and the motor symptoms of contralateral side limbs were effectively controlled. Only low Hoehn-Yahr stage was correlated with good long-term postoperative improvement in motor symptoms. The mean levodopa-equivalent daily dose after stimulation treatment was significantly lower than that before treatment, but dyskinesias became worse. Our experimental findings indicate that unilateral deep brain stimulation of the subthalamic nucleus is an effective treatment for improving motor symptoms in well selected asymmetrical Parkinson's disease patients presenting no severe axial symptoms and dyskinesias. | Jinchuan Liang Xiaowu Hu Xiaoping Zhou Xiufeng Jiang Yiqun Cao Laixing Wang Aiguo Jin Jianmin Liu | 2012 | Neural Regeneration Research2012，7，18： | 3 |
| 5 | Surface wettability and flow properties of non-metallic pipes in laminar flow显示文摘In this paper,three liquids flowing in five pipes with the same inner diameter of 14 mm were studied to determine the relationship between the surface wettability and flow properties in laminar flow(Re b 2000).This was motivated by oilfield observations of increased pressure drops in non-metallic pipes compared to those in metal pipes,which was contrary to expectations.A new expression for the frictional coefficient that considers the Reynolds number and contact angleθin laminar flow for non-metallic pipes was proposed based on the experimental results of single-phase flow using dimension and regression analyses.The solutions of the anomalous phenomenon were proposed from the perspectives of the pipe diameter,contact-angle difference,and the compatibility between flexible composite pipe and JLHW105 oil according to the new formula.The surprising finding was that the surface wettability could control the frictional resistance by the critical contact angle(39.9°)obtained at the same Reynolds number.If 0°bθ≤39.9°,the frictional coefficient increased as the contact angle increased.In contrast,if 39.9°bθb 180°,the frictional coefficient decreased with increasing contact angle.The influences of the pipe diameter and contactangle difference on the pressure drop difference of JLHW105 oil showed an inversely proportional relation.A series of materials and liquids were tested.The selection of pipe material for transporting a given fluid can be based on the contact angle,surface tension,and critical limit of the contact angle obtained.The research results are expected to provide some guidelines for the selection of the appropriate pipe material for a given set of fluids. | Hongyuan Qi Aiguo Liang Huayi Jiang Jianying Shi Nana Sun Yulong Wang | 2020 | Chinese Journal of Chemical Engineering2020，28，3： | 2 |
| 6 | Experimental and numerical study on behavior of flow in a unsymmetrical com- pound channel显示文摘 | Huai Wenxin Liang Aiguo Yang Zhonghua | 2007 | Journal of Huazhong University of Science and Technology2007，35，12： | 1 |
| 7 | Geochemical characteristics of Tertiary saline lacustrine oils in the western Qaidam Basin, northwest China显示文摘 | Zhu Yangming Weng Huanxin Su Aiguo Liang Digang Peng Dehua | 2005 | Appl Geochem2005，20，10： | 1 |
| 8 | Vitamin E supplementation protects erythrocyte membranes from oxidative stress in healthy Chinese middle-aged and elderly people显示文摘 | Yongye Sun Aiguo Ma Yong Li Xiuxia Han Qiuzhen Wang Hui Liang | 2012 | Nutrition Research2012，，5： | 1 |
| 9 | Characterizing the luminescent properties of upconversion nanoparticles in single and densely packed state显示文摘Luminescent properties of Er^(3+)-and Yb^(3+)-co-doped CaF_(2)upconversion nanoparticles(UCNPs)were investigated in single particle and densely-packed states with a custom-built microscope.The single UCNPs exhibit linear dependency of luminescent intensity on excitation power while the densely-packed UCNPs exhibit a 2-order power law-dependency indicating a two-photon absorption process.Time-domain luminescence intensity measurements were performed and the curves were fitted to excitationnemission rate functions based on a simplified three-state model.The results indicate that the intermediates in single particles are much less and saturated in a short time,and there are strong couplings of the ground states and intermediate states between neighboring UCNPs in densely packed UCNPs. | Xiaohu Chen Zhengyu Gui Yong Liang Xin Jin Simin Li Pengjiu Zhao Zhangsen Yu Aiguo Wu Shoupeng Liu Hui Li | 2019 | Journal of Innovative Optical Health Sciences2019，，1： | 0 |
| 10 | Immunogenicity and safety of a booster COVID-19 vaccination in patients with chronic liver disease:A multicenter study显示文摘Aim:Patients with chronic liver disease(CLD),especially cirrhosis,are at a high risk of severe illness or death from coronavirus disease-2019(COVID-19)and may have a suboptimal immune response to the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)vaccine.This study aimed to evaluate the safety and immunogenicity of the COVID-19 booster vaccination in patients with CLD.Methods:The study protocol was prospectively registered at ClinicalTrials.gov(No.NCT05204602)after approval by the Ethics Committee.Adult participants with CLD were enrolled in this multicenter prospective study.They completed two doses of the inactivated COVID-19 vaccine and received booster doses at least 6 months later.Adverse reactions were recorded within 14 days after the booster dose.Serum samples of the enrolled patients were collected before and after booster vaccination and tested for SARS-CoV-2 receptor-binding domain(RBD)immunoglobulin G and neutralizing anti-bodies.The chi-squared or Fisher's exact test was used to compare categorical data,and the Mann-Whitney U test was used to compare continuous variables.Two-sided p<0.05 were considered statistically significant.Results:In total,63 patients were enrolled from four hospitals in China,including 29 patients with cirrhosis.The median age of all patients was 55 years,and 61.9%(39/63)were male.The vaccines were well tolerated;most adverse reactions were mild and transient,and injection site pain(6.4%;4/63)and fatigue(3.2%,2/63)were the most frequent local and systemic adverse events.Following the booster vaccination,our results showed that in the whole cohort,the levels and positive rates of anti-RBD IgG and neutralizing antibodies were significantly higher than baseline levels(all p<0.05).Conclusions:The inactivated COVID-19 booster vaccine was safe and significantly increased antibody levels and positivity rates following standard vaccination regimens in patients with CLD,especially those with cirrhosis. | Jitao Wang Jingwen Ai Huiling Xiang Yanliang Zhang Zhiyun Hou Qiran Zhang Jiaojian Lv Shubo Chen Chuan Liu Qianqian Li Jing Liang Faren Xie Shujun Jiang Nina Zhang Aiguo Zhang Xiaolin Lan Xuying Zhang Jinlong Li Dengxiang Liu Wenchuan Wang Wei Rao Zhang Qun Qiuju Tian Xiaolong Qi Wenhong Zhang | 2023 | Portal Hypertension & Cirrhosis2023，2，3： | 0 |
| 11 | On UAV Serving Node Deployment for Temporary Coverage in Forest Environment:A Hierarchical Deep Reinforcement Learning Approach显示文摘Unmanned aerial vehicles(UAVs)can be effectively used as serving stations in emergency communications because of their free movements,strong flexibility,and dynamic coverage.In this paper,we propose a coordinated multiple points based UAV deployment framework to improve system average ergodic rate,by using the fuzzy C-means algorithm to cluster the ground users and considering exclusive forest channel models for the two cases,i.e.,associated with a broken base station or an available base station.In addition,we derive the upper bound of the average ergodic rate to reduce computational complexity.Since deep reinforcement learning(DRL)can deal with the complex forest environment while the large action and state space of UAVs leads to slow convergence,we use a ratio cut method to divide UAVs into groups and propose a hierarchical clustering DRL(HC-DRL)approach with quick convergence to optimize the UAV deployment.Simulation results show that the proposed framework can effectively reduce the complexity,and outperforms the counterparts in accelerating the convergence speed. | WANG Li WU Xuewei WANG Yanhui XIAO Zhe LI Liang FEI Aiguo | 2023 | Chinese Journal of Electronics2023，32，4： | 0 |
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