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| 1 | Direct transformation of FGD gypsum to calcium sulfate hemihydrate whiskers:Preparation,simulations,and process analysis显示文摘Calcium sulfate hemihydrate(CSH) whiskers were synthesized by phase transition in CaCl_2 solution under atmospheric pressure.Analytical-grade calcium sulfate dihydrate(AR CSD) was used as the raw material for the synthesis of CSH whiskers,according to orthogonal experiments.The effects of reaction temperature,AR CSD content,H_2SO_4 content,and reaction time were investigated,and the crystallization conditions were optimized.The as-prepared CSH whiskers displayed a regular morphology and a highly uniform size,with an aspect ratio of 105.A simulation system was also established by blending various sulfates with AR CSD,to evaluate the effects of impurities in flue gas desulfurization(FGD) gypsum.The main aim was to prepare CSH whiskers directly from FGD gypsum,without any purification,using the optimized conditions.This is a facile potential alternative process for large-scale production of CSH whiskers using abundant FGD gypsum as source materials. | Miao Miao Xin Feng Gangling Wang Shaomei Cao Wen Shi Liyi Shi | 2015 | Particuology2015，13，2： | 31 |
| 2 | Stereoselective separation and determination of quizalofopethyl in tobacco by ultra-performance convergence chromatography with tandem mass spectrometry显示文摘The purpose of this study was to develop and validate a novel and sensitive method for simultaneous enantiomeric analysis of quizalofop-ethyl in tobacco using ultra-performance converge nee chromatography with tandem mass spectrometry(UPC-MS/MS).Sample preparation prior to UPC^2-MS/MS analysis followed a QuEChERS(quick,easy,cheap,effective,rugged and safe)method.The UPC^2-MS/MS method used an Acquity UPC2 Trefoil CEL2 column with a mobile phase of CO2 and methanol.The injection volume was 2 μL and run-time was 6 min with the mobile phase running at 2.0 mL/min flow rate.Column temperature,auto back pressure regulator pressure(ABPR),and modifier solvent were optimized for separation efficiency.Under the optimal conditio ns,the recoveries for all the ena ntiomers were 81.3%-94.8% with relative standard deviations(RSD)less than 5.0% at 0.1,1.0 and 2.0 mg/kg levels,respectively.Good coefficients of determination(R^2≥0.993 7)were achieved for all the studied enantiomers in the tobacco over the concentration range of 10-250 ng/mL.The limits of detection(LODs)varied from 0.02 mg/kg to 0.04 mg/kg,and the limits of quantification(LOQs)were ≤ 0.13 mg/kg.The results confirm that the proposed method is green,convenient and reliable for the enantioselective determination of the enantiomers of quizalofop-ethyl in tobacco. | YANG Fei TANG Gangling FAN Ziyan WANG Ying LIU Shanshan DENG Huimin BIAN Zhaoyang LI Zhonghao | 2018 | 烟草科技2018，51，A01： | 1 |
| 3 | Clinical evidence of an interferon-glucocorticoid therapeutic synergy in COVID-19显示文摘Synthetic glucocorticoid dexamethasone is the first trial-proven drug that reduces COVID-19 mortality by suppressing immune system.In contrast,interferons are a crucial component of host antiviral immunity and can be directly suppressed by glucocorticoids.To investigate whether therapeutic interferons can compensate glucocorticoids-induced loss of antiviral immunity,we retrospectively analyzed a cohort of 387 PCR-confirmed COVID-19 patients with quasi-random exposure to interferons and conditional exposure to glucocorticoids.Among patients receiving glucocorticoids,early interferon therapy was associated with earlier hospital discharge(adjusted HR 1.68,95%Cl 1.19-2.37)and symptom relief(adjusted HR 1.48;95%Cl 1.06-2.08),while these associations were insignificant among glucocorticoids nonusers.Early interferon therapy was also associated with lower prevalence of prolonged viral shedding(adjusted OR 0.24,95%Cl 0.10-0.57)only among glucocorticoids users.Additionally,these associations were glucocorticoid cumulative dose-and timing-dependent.These findings reveal potential therapeutic synergy between interferons and glucocorticoids in COVID-19 that warrants further investigation. | Yingying Lu Feng Liu Gangling Tong Feng Qiu Pinhong Song Xiaolin Wang Xiafei Zou Deyun Wan Miao Cui Yunsheng Xu Zhihua Zheng Peng Hong | 2021 | Signal Transduction and Targeted Therapy2021，6，4： | 0 |
| 4 | SARS-CoV-2 immunity and functional recovery of COVID-19 patients 1-year after infection显示文摘The long-term immunity and functional recovery after SARS-CoV-2 infection have implications in preventive measures and patient quality of life.Here we analyzed a prospective cohort of 121 recovered COVID-19 patients from Xiangyang,China at 1-year after diagnosis.Among them,chemiluminescence immunoassay-based screening showed 99%(95%CI,98–100%)seroprevalence 10–12 months after infection,comparing to 0.8%(95%CI,0.7–0.9%)in the general population.Total anti-receptor-binding domain(RBD)antibodies remained stable since discharge,while anti-RBD IgG and neutralization levels decreased over time.A predictive model estimates 17%(95%CI,11–24%)and 87%(95%CI,80–92%)participants were still 50%protected against detectable and severe re-infection of WT SARS-CoV-2,respectively,while neutralization levels against B.1.1.7 and B.1.351 variants were significantly reduced.All non-severe patients showed normal chest CT and 21%reported COVID-19-related symptoms.In contrast,53%severe patients had abnormal chest CT,decreased pulmonary function or cardiac involvement and 79%were still symptomatic.Our findings suggest long-lasting immune protection after SARS-CoV-2 infection,while also highlight the risk of immune evasive variants and long-term consequences for COVID-19 survivors. | Yan Zhan Yufang Zhu Shanshan Wang Shijun Jia Yunling Gao Yingying Lu Caili Zhou Ran Liang Dingwen Sun Xiaobo Wang Zhibing Hou Qiaoqiao Hu Peng Du Hao Yu Chang Liu Miao Cui Gangling Tong Zhihua Zheng Yunsheng Xu Linyu Zhu Jin Cheng Feng Wu Yulan Zheng Peijun Liu Peng Hong | 2021 | Signal Transduction and Targeted Therapy2021，6，11： | 0 |
| 5 | Study on Catalytic Cracking of VGO Derived from Kazakhstan-Russian Mixed Crude显示文摘The study on options for catalytic cracking of VGO derived from the Kazakhstan-Russian mixed crude was carried out in a small-scale riser FCC unit. The influence of several catalysts and the LCC-A additive for increasing propylene yield on the distribution and quality of FCC products was analyzed. This article sets forth the possible issues arising from processing the Kazakhstan-Russian mixed crude in FCC unit and the response measures to be adopted. | Duan Yongsheng Dong Yuancheng Wei Gangling Wang Jian (Du Shanzi Petrochemical Company, Du Shanzi, 833600) | 2006 | China Petroleum Processing & Petrochemical Technology2006，8，2： | 0 |
| 6 | OFDMA-Based Unsourced Random Access in LEO Satellite Internet of Things显示文摘This paper investigates the low earth orbit(LEO)satellite-enabled coded compressed sensing(CCS)unsourced random access(URA)in orthogonal frequency division multiple access(OFDMA)framework,where a massive uniform planar array(UPA)is equipped on the satellite.In LEO satellite communications,unavoidable timing and frequency offsets cause phase shifts in the transmitted signals,substantially diminishing the decoding performance of current terrestrial CCS URA receiver.To cope with this issue,we expand the inner codebook with predefined timing and frequency offsets and formulate the inner decoding as a tractable compressed sensing(CS)problem.Additionally,we leverage the inherent sparsity of the UPA-equipped LEO satellite angular domain channels,thereby enabling the outer decoder to support more active devices.Furthermore,the outputs of the outer decoder are used to reduce the search space of the inner decoder,which cuts down the computational complexity and accelerates the convergence of the inner decoding.Simulation results verify the effectiveness of the proposed scheme. | Jiaqi Fang Gangle Sun Wenjin Wang Li You Rui Ding | 2024 | China Communications2024，21，1： | 0 |
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