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Journal of Environmental Sciences 2021年第9期33卷 77-86页

作者： Lingyi Meng Boyu Song Yao lu Kun Lv wei Gao Yawei Wang Guibin Jiang Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China Foreign Environmental Cooperation Center Ministry of Ecology and Environment of the ChinaBeijing 100035China School of Environment Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310000China Environment Research Institute Shandong UniversityQingdao 266237China

Perfluorooctanoic acid(PFOA), its salts, and related compounds were listed as new persistent organic pollutants by the Stockholm Convention in *** this study, the occurrence of residues of PFOA and other per-and polyfluoroalkyl substances(PFASs) in raw materials and fluoropolymer products from the Chinese fluoropolymer industries are reported for the first *** PFOA concentrations in raw materials and fluoropolymer products were in the range of 6.7 to 1.1 × 10^(6) ng/g, and luoroethylene(PTFE) production line, it was found that over a 5 year period, the residual levels of PFOA in emulsion samples declined from 1.1 × 10^(6) to 28.4 ng/g, indicating that the contamination of PFOA in fluoropolymer products from production source gradually decreased after its use had been *** concentrations of HFPO-TrA(2.7 × 10^(5) to 8.2 × 10^(5) ng/g) were detected in some emulsion samples indicating this alternative has been widely applied in fluoropolymer manufacturing in China.

关键词： Fluoropolymer Per-and polyfluoroalkyl substances(PFASs) Perfluorooctanoic acid(PFOA) Perfluoro-2,5-dimethyl-3,6-dioxanonanoic acid(HFPO-TrA)

Prediction model for mechanical properties of hot-rolled strips by deep learning

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Journal of Iron and Steel Research International 2020年第9期27卷 1045-1053页

作者： wei-gang Li lu Xie Yun-tao Zhao Zi-xiang Li Wen-bo Wang Engineering Research Center of Metallurgical Automation and Measurement Technology of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina Hubei Province Key Laboratory of Systems Science in Metallurgical Process Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The prediction of the mechanical properties of hot-rolled strips is a very complex,highly dimensional and nonlinear problem,and the published models might lack reliability,practicability and ***,a new model was proposed for predicting the mechanical properties of hot-rolled strips by deep ***,the one-dimensional numerical data were transformed into two-dimensional data for expressing the complex interaction between the influencing ***,a new convolutional network was proposed to establish the prediction model of tensile strength of hot-rolled strips,and an improved inception module was introduced into this network to abstract features from different *** comparative experiments were carried out to find the optimal network structure and its ***,the prediction experiments were carried out on different models to evaluate the performance of the new convolutional network,which includes the stepwise regression,ridge regression,support vector machine,random forest,shallow neural network,Bayesian neural network,deep feed-forward network and improved LeNet-5 convolutional neural *** results show that the proposed convolutional network has better prediction accuracy of the mechanical properties of hot-rolled strips compared with other models.

关键词： Deep learning Convolutional neural network Mechanical property Hot-rolled strip

Challenges and strategies for ultrafast aqueous zinc-ion batteries

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Rare Metals 2021年第2期40卷 309-328页

作者： Qiao-Nan Zhu zhen-Ya Wang Jia-wei Wang Xiao-Yu Liu Dan Yang Li-wei Cheng Meng-Yao Tang Yu Qin Hua Wang School of Chemistry Beihang UniversityBeijing100191China College of Applied Science and Technology Beijing Union UniversityBeijing100012China Faculty of Science Engineering and TechnologySwinburne University of TechnologyHawthorn3122VICAustralia Institute of Chemistry Henan Academy of SciencesZhengzhou450002China

With the rising demand for fast-charging technology in electric vehicles and portable devices,significant efforts have been devoted to the development of the highrate *** numerous candidates,rechargeable aqueous zinc-ion batteries(ZlBs)are a promising option due to its high theoretical capacity,low redox potential of zinc metal anode and inherent high ionic conductivity of aqueous *** the strong electrostatic interaction between Zn^(2+)and host generally leads to sluggish electrode kinetics,many strategies have been proposed to enhance fast(dis)charging ***,we review the state-of-the-art ultrafast aqueous ZIBs and focus on the rational electrode-designing strategies,such as crystal structure engineering,nanostructuring and morphology controlling,conductive materials introducing and organic molecule *** research directions and future perspectives are also proposed in this review.

关键词： Aqueous zinc-ion battery Cathode materials Energy density Energy storage Rate capacity Ultrafast

Influence of temperature and Fe_(2)O_(3)on phosphorus recovery from dephosphorization slag by reduction

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Journal of Iron and Steel Research International 2023年第4期30卷 697-707页

作者： Sai He lu Lin Ya-qin Liu Zhong-xiao Hou Yan Lv wei Wu Metallurgical Technology Research Institute Central Iron and Steel Research Institute Co.Ltd.Beijing 100081China

The reduction and recovery of P_(2)O_(5)in dephosphorization slag were examined to establish a new recycling process for dephosphorization *** dephosphorization slag is obtained from the dephosphorization furnace in the duplex converter process,and the content of P_(2)O_(5) in the dephosphorization slag can reach 9 wt.%.The dephosphorization slag is considered to be a prospective resource of phosphorus due to its high content of P_(2)O_(5).To explore the effects of temperature and Fe2O3 content in slag on phosphorus recovery from dephosphorization slag,the experimental slag was reduced by carbon powder in a resistance *** results show that the temperature and content of Fe2O3 in slag have a significant effect on the reduction in P_(2)O_(5),and the reduction and recovery ratios of P_(2)O_(5) in slags increase with the increase in the experimental temperature and content of Fe_(2)O_(3),reaching 94.41%and 83.09%,*** has been indicated that phosphorus recovery from dephosphorization slag using carbothermic reduction has significant environmental and economic benefits.

关键词： Dephosphorization slag Phosphorus recovery Carbothermic reduction P_(2)O_(5)

Derivation and validation of a similarity law for free-flight wind tunnel tests of parallel stage separation

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Chinese Journal of Aeronautics 2023年第8期36卷 91-100页

作者： Zhiming CHEN Fei XUE Haichuan YU Yuchao WANG Zenghui JIANG wei lu Lei DONG China Academy of Aerospace Aerodynamics Beijing 100074China Beijing Institute of Astronautical Systems Engineering Beijing 100076China China Academy of Launch Vehicle Technology Beijing 100076China

Aiming at the safety problem of the stage separation of parallel reusable high-speed air vehicles,this paper studies the unsteady test method and focuses on deriving a similarity law of parallel stage separation free-flight wind tunnel *** new similarity law considers the influences of aerodynamic force and gravity on the motions of the two stages,as well as the influence of aerodynamic interference between the two stages on each other’s *** the perspective of multiangle physical equations,the conditions to ensure that the two-stage separation trajectory of a wind tunnel test is similar to that of a real air vehicle are derived innovatively,so as to ensure the authenticity and credibility of wind tunnel test *** similarity law is verified by an HIFiRE-5 air vehicle,and the separation trajectories of wind tunnel tests and the real air vehicle are obtained by numerical *** research shows that the similarity law derived in this paper can ensure that wind tunnel free-flight tests have the ability to predict the two-stage separation characteristics of real parallel *** analyzing the separation trajectory curve of the typical state,it is found that the new method can ensure that the trajectory error of a wind tunnel test does not exceed 1%,which indicates that this method is *** establishment of the new method lays the foundation for subsequent wind tunnel tests and provides support for research on the safety of the stage separation of parallel reusable air vehicles.

关键词： Droptesting in wind tunnel Free-flight wind tunnel test Multi-body separation Parallel stage separation Similaritylaw

丁香止痛膏联合三阶梯止痛药治疗癌痛的随机交叉对照研究

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中华中医药杂志 2024年第1期39卷 514-518页

作者：王曼胡凯文王静卫月陈昌明任卫国田桢刘传波北京市丰台区中医医院(北京市丰台区南苑医院) 北京100076 北京中医药大学东方医院北京100078 陕西科技大学西安710021

目的:采用前瞻性、随机交叉对照、双盲设计探究丁香止痛膏治疗癌痛的疗效。方法:选择癌痛患者58例进行随机分组,不同组别按顺序使用试验组方案(三阶梯止痛药+丁香止痛膏)和对照组方案(三阶梯止痛药+安慰剂)进行干预,对比治疗前后数字评... 详细信息

目的:采用前瞻性、随机交叉对照、双盲设计探究丁香止痛膏治疗癌痛的疗效。方法:选择癌痛患者58例进行随机分组,不同组别按顺序使用试验组方案(三阶梯止痛药+丁香止痛膏)和对照组方案(三阶梯止痛药+安慰剂)进行干预,对比治疗前后数字评分量表(NRS)评分、生活质量(QOL)评分、血清学指标和满意度评分。结果:两组中度疼痛患者NRS评分比较,试验组方案干预后的NRS评分低于对照组方案(P<0.05);两组中度疼痛患者QOL评分比较,试验组方案干预后的QOL评分高于对照组方案(P<0.05);两组患者血清学指标比较差异均无统计学意义;两组满意度评分比较,患者对试验组方案治疗更满意(P<0.05)。结论:温阳理论指导下的丁香止痛膏外敷能改善中度癌痛患者NRS评分和生活质量。

关键词：癌痛丁香止痛膏交叉试验温通中药贴敷

Preparation of bowl-shaped polydopamine surface imprinted polymer composite adsorbent for specific separation of 2'-deoxyadenosine

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中国化学工程学报:英文版 2023年第8期60卷 69-79页

作者： Pan Wang Mengdei Zhou Zhuangxin wei lu Liu Tao Cheng Xiaohua Tian Jianming Pan School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013China

Molecularly imprinted polymers (MIPs) have great potential as adsorbents for selective adsorption and separation of nucleoside compounds,but effectively enhancing the affinity of recognition sites by adjusting the forces between template molecules and functional monomers remains an important *** this work,a surface imprinting strategy was used to construct bowl-shaped molecularly imprinted composite sorbents (BHPN@MIPs) based on polydopamine (PDA) particles and have achieved selective separation and purification of 2'-deoxyadenosine (dA).Where by the base complementary pairing interaction of the combined template molecule d A and the pyrimidine functional monomer can enhance the preassembly force,and the hydrophilic bowl-shaped PDA can provide a larger storage space contact efficiency of d A in the test solution,causing the site utilization much higher and improving the kinetic adsorption *** equilibrium adsorption time and maximum adsorption capacity of60 min and 328.45μmol·g^(-1)were observed by static adsorption experiments,and the selectivity experimental results showed an imprinting factor IF of *** four adsorption–desorption cycles,the initial adsorption equilibrium adsorption capacity of BHPN@MIPs still retained 91.14%.By evaluating the selective adsorption of d A in spiked human serum solutions,BHPN@MIPs can be used to selectively enrich and analyze target d A in complex biological samples.

关键词： Molecularly imprinted polymers(MIPs) Bowl-shaped Base complementary pairing interaction Selective separation 2'-deoxyadenosine(dA)

Emodin enhances alveolar epithelial barrier function in rats with experimental acute pancreatitis

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World Journal of Gastroenterology 2010年第24期16卷 2994-3001页

作者： Xia, Xian-Ming Wang, Fang-Yu Wang, zhen-Kai Wan, Hai-Jun Xu, Wen-An lu, Heng Jinling Hosp Dept Gastroenterol & Hepatol Nanjing 210002 Jiangsu Prov Peoples R China

AIM: To investigate the effect of emodin on expression of claudin4, claudin5 and occludin, as well as the alveolar epithelial barrier in rats with pancreatitis induced by sodium taurocholate. METHODS: Experimental pancreatitis was induced by retrograde injection of 5% sodium taurocholate into the biliopancreatic duct. Emodin was injected via the external jugular vein 3 h after induction of acute pancreatitis. Rats from sham operation group and acute pancreatitis group were injected with normal saline (an equivalent volume as emodin) at the same time point. Samples of lung and serum were obtained 6 h after drug administration. Pulmonary morphology was examined with HE staining. Pulmonary edema was estimated by measuring water content in lung tissue samples. Tumor necrosis factorα (TNFα) and interleukin6 (IL6) level were measured by enzymelinked immunospecific assay. Serum amylase and pulmonary myeloperoxidase (MPO) activity were detected by spectrophotometry. Alveolar epithelial barrier was assessed by pulmonary dye extravasation. Expression of claudin4, claudin5 and occludin in lung tissue samples was examined by immunohistology, quantitative realtime reverse transcription polymerase chain reaction and Western blotting analysis, ***: Pancreatitis-associated lung injury was char-acterized by pulmonary edema, leukocyte infiltration, alveolar collapse, and elevated serum amylase level. The pulmonary damage, pulmonary pathological scores, serum amylase and MPO activity, TNF-α and IL-6 levels, and wet/dry ratio were decreased in rats after treatment with emodin. Immunostaining of claudin-4, claudin-5 and occludin was detected in lung tissue samples from rats in sham operation group, which was distributed in alveolar epithelium, vascular endothelium, and bron-chial epithelium, respectively. The mRNA and protein expression levels of claudin-4, claudin-5 and occludin in lung tissue samples were markedly decreased, the expression level of claudin-4, claudin-

关键词： Acute pancreatitis Emodin lung injury Claudin Occludin Epithelial barrier

凝血酶原时间和活化部分凝血活酶时间在初诊多发性骨髓瘤患者中的预后价值

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中国实验血液学杂志 2024年第3期32卷 805-810页

作者：王丽军韩孟汝董春霞田卫伟卢馨怡杨林花马艳萍王梅芳山西医科大学第二医院血液科山西太原030001 山西医科大学第三医院血液科山西太原030001

目的:评估凝血酶原时间(PT)和活化部分凝血活酶时间(APTT)在初诊多发性骨髓瘤(MM)患者中的临床及预后价值。方法:回顾性分析2014年10月至2022年3月在山西医科大学第二医院和第三医院血液科就诊的116例初诊MM患者的临床资料,并将患者分... 详细信息

目的:评估凝血酶原时间(PT)和活化部分凝血活酶时间(APTT)在初诊多发性骨髓瘤(MM)患者中的临床及预后价值。方法:回顾性分析2014年10月至2022年3月在山西医科大学第二医院和第三医院血液科就诊的116例初诊MM患者的临床资料,并将患者分为PT和APTT正常组及PT或APTT延长组。比较两组患者在性别、年龄、分型、分期、出血事件、实验室指标[血红蛋白(Hb)、血小板计数(PLT)、血钙、血清白蛋白(ALB)、乳酸脱氢酶(LDH)、β2-微球蛋白、肌酐]、细胞遗传学特征等方面的差异,分析PT或APTT延长对MM患者生存的影响。结果:与PT和APTT正常组相比,PT或APTT延长组更容易发生出血事件(χ^(2)=5.087,P=0.024)、具有更低的ALB水平(χ^(2)=4.962,P=0.026)和PLT水平(χ^(2)=4.309,P=0.038),以及更高的血钙水平(χ^(2)=5.056,P=0.025)。PT或APTT延长组del13q、1q21扩增、del17p阳性率高于PT和APTT正常组,但差异无统计学意义(P>0.05)。K-M生存分析显示,PT或APTT延长组具有更短的中位无进展生存期(PFS)(P=0.032)和总生存期(OS)(P=0.032);多因素Cox分析结果显示,PT或APTT延长(HR=2.116,95%CI:1.025-4.372,P=0.043)、年龄≥65岁(HR=2.403,95%CI:1.195-4.836,P=0.014)是影响初诊MM患者OS的独立危险因素;但PT或APTT延长对初诊MM患者的PFS没有明显影响(HR=1.162,95%CI:0.666-2.026,P=0.597)。结论:PT或APTT延长的初诊MM患者具有更恶化的临床指标、更短的PFS和OS;PT或APTT延长是影响MM患者OS的独立危险因素。

关键词：多发性骨髓瘤凝血酶原时间活化部分凝血活酶时间预后

Optimal Dispatch for Flexible Uncertainty Sets in Multi-energy Systems: An IGDT Based Two-stage Decision Framework

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CSEE Journal of Power and Energy Systems 2023年第6期9卷 2374-2385页

作者： Shuai lu Guannan Lou wei Gu Suhan Zhang Xiaodong Yuan Qiang Li Huachun Han the School of Electrical Engineering Southeast UniversityNanjing 210096China the State Grid Jiangsu Electric Power Company Research Institute Nanjing 210024China

The operational stability and economy of multi-energy systems(MES)are threatened by various uncertainties,such as variable renewable energy power,energy demands,and weather *** of the existing methods for the dispatch decisions of MES are based on the prescribed probability distribution or uncertainty sets of random variables,which have many disadvantages,such as potential infeasibility and *** this paper,we propose a novel dispatch model for MES that integrates dispatch decision making,uncertainty set selection,and operational cost control into a unified ***,the deterministic dispatch model of MES is introduced,in which the physical characteristics of district heating systems and buildings are fully ***,a novel decision framework that combines the two-stage dispatch strategy and info-gap decision theory(IGDT)is proposed for MES,where the uncertainty set is flexible and can be optimized based on the operational cost ***,a revised algorithm,based on the column-and-constraint generation method,is proposed for the *** studies are performed on MES that includes a 33-bus distribution system and a heating network modified from a real 51-node network located in Jinlin Province,*** results verify the effectiveness of the proposed method.

关键词： Dispatch decision flexible uncertainty set info-gap decision theory multi-energy systems operational cost budget two-stage dispatch strategy