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Journal of Environmental Sciences 2017年第1期29卷 214-221页

作者： Wenyu Wang Shuang zhao Qinyan Yue baoyu Gao Wen Song Lijuan Feng Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityJinan 250100China. Key Laboratory of Inorganic Chemistry in Uniuersities of Shandong Department of Chemistry and Chemical EngineeringJining UniversityShandong 273155China

The objective of this study was to investigate the effect of different Al species and chitosan（CS） dosages on coagulation performance,floc characteristics（floc sizes,strength and regrowth ability and fractal dimension） and membrane resistance in a coagulation-ultrafiltration hybrid *** showed that different Al species combined with humic acid in diverse ways.A1_a had better removal efficiency,as determined by UV_（254） and dissolved organic carbon,which could be further improved by the addition of *** addition,the optimal dosage of different Al species was determined to be 4.0 mg/L with the CS concentration of 1.0 mg/L,by orthogonal coagulation *** Al_a/A1_b/A1_c,with CS resulted in larger flocs,higher recovery,and higher fractal dimension values corresponding to denser flocs;in particular,the floc size at the steady state stage was four times larger than that obtained with Al species coagulants *** results of ultrafiltration experiments indicated that the external fouling percentage was significantly higher than that of internal fouling,at around 85%and 15%,*** addition,the total membrane resistance was significantly decreased due to CS addition.

关键词： Al species Chitosan Dual-coagulants Coagulation-ultrafiltration Floc-characteristics Membrane resistance

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胃食管结合部腺癌区域淋巴廓清的临床研究

中国肿瘤外科杂志 2018年第6期10卷 351-355页

作者：赵保玉毕小刚董永红董博梁荣黄博山西省人民医院胃肠胰外科山西太原030012 山西省人民医院消化内镜中心山西太原030012

目的探讨胃型胃食管结合部腺癌淋巴清扫范围与淋巴结转移区域分布规律。方法分析2004年1月至2015年12月,山西省人民医院普外科收治的胃食管结合部癌患者肿瘤数据库,基于Nishi分型选取其中胃型胃食管结合部腺癌肿瘤,直径≤40 mm并R0切除... 详细信息

目的探讨胃型胃食管结合部腺癌淋巴清扫范围与淋巴结转移区域分布规律。方法分析2004年1月至2015年12月,山西省人民医院普外科收治的胃食管结合部癌患者肿瘤数据库,基于Nishi分型选取其中胃型胃食管结合部腺癌肿瘤,直径≤40 mm并R0切除患者相关肿瘤学数据勾勒胃型胃食管结合部腺癌淋巴高频转移站别区域图。结果纳入306例胃型胃食管结合部腺癌患者,结果显示:pT4期肿瘤占87%、pN阳性占77. 8%、pTNM分期Ⅲ期占74. 5%;肿瘤直径(25. 44±18. 03)mm;腹腔淋巴结转移高频区域依次是贲门左右侧(第1、2组)、小弯侧胃左血管周围(第3组)、胰腺上缘腹腔干(第9组)及其主干分支胃左动脉(第7组)、肝总动脉(第8a组)、脾动脉近端(第11p组)、肝动脉(第12a组)周围以及食管裂孔周围(第19、20组);胃远端区域转移较为罕见。结论瘤体直径≤40 mm胃型胃食管结合部腺癌淋巴清扫区域应集中在贲门左右侧、小弯侧、胰腺上缘腹腔干及其主干分支以及食管裂孔周围,胃远端及大弯侧区域淋巴清扫外科获益价值存疑。

关键词：胃食管结合部腺癌淋巴清扫胃切除术淋巴转移

Preparation and characterization of β-FeOOH-coated sand and its adsorption of Cr（VI） from aqueous solutions

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Frontiers of Environmental Science & Engineering 2012年第4期6卷 455-462页

作者： Chunhua XU Dandan CHENG baoyu GAO Zhilei YIN Qinyan YUE Xian zhao Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityJinan 250100China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China

Batch adsorption experiments were conducted to explore the adsorption of Cr（VI） in aqueous solutions by fl-FeOOH-coated sand. We investigated the key factors which affected the adsorption process such as adsorbent dosage, initial pH, initial Cr（VI） ion concentration, contact time and temperature. The uptake of Cr（VI） was very rapid and 44.3%, 51.6%, 58.9% of the adsorption happened during the first 180minutes at 293K, 303K and 313K, respectively. The pseudo-second-order rate equation successfully described the adsorption kinetics. To study the adsorption isotherm, two equilibrium models, the Langmuir and Freundlich isotherms, were adopted. At 293K, 303K and 313K, the adsorption capacities obtained from the Langmuir isotherm were 0.060, 0.070 and 0.076 mg Cr（VI） per gram of the adsorbent, respectively. Thermodynamic parameters such as the change of energy, enthalpy and entropy were calculated using the equilibrium constants. The negative value of AGO and the positive value of △H^0 showed that the adsorption of Cr（VI） in aqueous solutions by β-FeOOH-coated sand was spontaneous, endothermic and occurred by physisorption.

关键词： β-FeOOH-coated sand Cr(VI) adsorption isotherm kinetics

Synergy of first-and second-sphere interactions in a covalent organic framework boosts highly selective platinum uptake

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Science China Chemistry 2023年第3期66卷 783-790页

作者： Linwei He baoyu Li Zhonglin Ma Lixi Chen Shicheng Gong Mingxing Zhang Yaoyao Bai Qi Guo Fuqi Wu Fuqiang zhao Jie Li Duo Zhang Daopeng Sheng Xing Dai Long Chen Jie Shu Zhifang Chai Shuao Wang State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences(RAD-X)and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhou 215123China Analysis and Testing Center Soochow UniversitySuzhou 215123China

Platinum recovery from waste electrical and electronic equipment(WEEE) in highly acidic solutions is significant to the electronics industry and environmental remediation. However, the lack of ingenious design and synergetic coordination gives rise to unsatisfied PtCl_(4)^(2-)extraction capacities and selectivities in most previously reported adsorbents(e.g., polymeric and inorganic materials). Herein, we proposed a synergistic strategy that realizes highly selective PtCl_(4)^(2-)uptake through first-and second-sphere coordinations. The proof-of-concept imine-linked covalent organic framework(SCU-COF-3) was found to chelate Pt Cl42-via the direct N…Pt coordination and the synergistically interlaminar N–H…Cl hydrogen bonds, which was disclosed by the comprehensive analysis of extended X-ray adsorption fine structure(EXAFS) characterizations and density functional theory(DFT) calculations. The unique adsorption mechanism imparts a superior adsorption capacity(168.4 mg g-1)and extraordinary Pt(II) selectivity to SCU-COF-3 under static conditions. In addition, SCU-COF-3 exhibits an upgraded distribution coefficient of 1.62 × 10^(5)mL· g^(-1), one order of magnitude higher than those of reported natural adsorbents. Specifically, SCU-COF-3 can extract PtCl_(4)^(2- )quantitatively from a simulated acidic waste solution coexisting with other 12 competitive ions, suggesting its promising application in practical scenarios.

关键词： covalent organic frameworks platinum hydrogen bond adsorption

A QUANTUM MULTIPLE ACCESS COMMUNICATIONS SCHEME USING ORBITAL ANGULAR MOMENTUM

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Journal of Electronics(China) 2013年第2期30卷 145-151页

作者： Dong Xiaoliang zhao Shengmei Zheng baoyu Institute of Signal Processing and Transmission Nanjing University of Posts and Telecommunications

We propose a quantum multiple access communications scheme using Orbital Angular Momentum (OAM) sector states in the paper. In the scheme, each user has an individual modified Poincare Bloch sphere and encodes his information with his own corresponding sector OAM states. A prepared entangled photon pairs are separated at transmitter and receiver. At the transmitter, each user encodes his information with the sector OAM states on the photons and the superposition of the different sector OAM states is carried by the photons. Then the photons are transmitted through quantum noiseless channel to the receiver. At the receiver, each user could retrieve his information by coincidently measuring the transmitted photons with the receiver side photons which are modulated by a special prepared measurement basis. The theoretical analysis and the numerical simulations show that each user could get his information from the superposition state without error. It seems that this scheme provides a novel method for quantum multiple users communications.

关键词： Quantum multiple access communications Orbital Angular Momentum (OAM) Sector state Measurement basis

19例CRT(CRT-D)植入术患者的围手术期护理配合

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现代临床医学 2016年第1期42卷 78-80页

作者：赵宝玉陈丽徐展冯茂吴茜华敬思琪成都市第二人民医院心内科四川成都610017

目的:探讨CRT(CRT-D)植入术患者的围手术期护理配合。方法:收集心内科19例CRT(CRT-D)植入术患者的基本资料及术前、术中、术后的护理资料,强调心理护理、个性化护理、专科护理特点。结果:19例CRT(CRT-D)植入术患者顺利度过围手术期,为... 详细信息

目的:探讨CRT(CRT-D)植入术患者的围手术期护理配合。方法:收集心内科19例CRT(CRT-D)植入术患者的基本资料及术前、术中、术后的护理资料,强调心理护理、个性化护理、专科护理特点。结果:19例CRT(CRT-D)植入术患者顺利度过围手术期,为我们以后的护理提供了宝贵的经验。结论:通过本次研究,积累了关于双室再同步化治疗后的护理经验,提高患者及护理安全。

关键词： CRT(CRT-D)植入围手术期护理配合

Effect of six kinds of scale inhibitors on calcium carbonate precipitation in high salinity wastewater at high temperatures

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Journal of Environmental Sciences 2015年第3期27卷 124-130页

作者： Xiaochen Li baoyu Gao Qinyan Yue Defang Ma Hongyan Rong Pin zhao Pengyou Teng Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong University

Precipitation of calcium carbonate （CaCOs） scale on heat transfer surfaces is a serious and expensive problem widely occurring in numerous industrial processes. In this study, we compared the scale inhibition effect of six kinds of commercial scale inhibitors and screened out the best one （scale inhibitor SQ-1211） to investigate its scale inhibition performance in highly saline conditions at high temperature through static scale inhibition tests. The influences of scale inhibitor dosage, temperature, heating time and pH on the inhibition efficiency of the optimal scale inhibitor were investigated. The morphologies and crystal structures of the precipitates were characterized by Scanning Electron Microscopy and X-ray Diffraction analysis. Results showed that the scale inhibition efficiency of the optimal scale inhibitor decreased with the increase of the reaction temperature. When the concentration of Ca^2＋ was 1600 mg/L, the scale inhibition rate could reach 90.7% at 80℃ at pH 8. The optimal scale inhibitor could effectively retard scaling at high temperature. In the presence of the optimal scale inhibitor, the main crystal structure of CaCOs changed from calcite to aragonite.

关键词： Scale inhibitor Scale inhibition efficiency High salinity High temperature Grystal growth

PROJECTED GRADIENT DESCENT BASED ON SOFT THRESHOLDING IN MATRIX COMPLETION

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Journal of Electronics(China) 2013年第6期30卷 517-524页

作者： zhao Yujuan Zheng baoyu Chen Shouning Institute of Signal Processing and Transmission Nanjing University of Posts and Telecommunications College of Mathematics and Information Jiangsu Second Normal University

Matrix completion is the extension of compressed *** compressed sensing,we solve the underdetermined equations using sparsity prior of the unknown ***,in matrix completion,we solve the underdetermined equations based on sparsity prior in singular values set of the unknown matrix,which also calls low-rank prior of the unknown *** paper firstly introduces basic concept of matrix completion,analyses the matrix suitably used in matrix completion,and shows that such matrix should satisfy two conditions:low rank and incoherence *** the paper provides three reconstruction algorithms commonly used in matrix completion:singular value thresholding algorithm,singular value projection,and atomic decomposition for minimum rank approximation,puts forward their shortcoming to know the rank of original *** Projected Gradient Descent based on Soft Thresholding(STPGD),proposed in this paper predicts the rank of unknown matrix using soft thresholding,and iteratives based on projected gradient descent,thus it could estimate the rank of unknown matrix exactly with low computational complexity,this is verified by numerical *** also analyze the convergence and computational complexity of the STPGD algorithm,point out this algorithm is guaranteed to converge,and analyse the number of iterations needed to reach reconstruction *** the computational complexity of the STPGD algorithm to other algorithms,we draw the conclusion that the STPGD algorithm not only reduces the computational complexity,but also improves the precision of the reconstruction solution.

关键词： MC CS STPGD 电子技术通信数字信号处理

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直孔藏纸抑菌性及毒理学安全性评价

造纸科学与技术 2019年第1期38卷 34-39页

作者：张水平高丹张庚宋润杰孙运府益西措姆赵宝玉西北农林科技大学动物医学院陕西杨凌712100 西藏自治区墨竹工卡县农牧局西藏墨竹工卡850200 西藏自治区墨竹工卡县文旅局西藏墨竹工卡850200

采用顶空气相色谱技术,检测以瑞香狼毒根部韧皮为原料所造直孔藏纸的抑菌效果,评价其抑菌性;通过家兔皮肤刺激试验、豚鼠皮肤变态反应试验及二者受试区皮肤的病理组织学变化,综合评价直孔藏纸毒理学安全性。研究结果表明,5 mL的2.9×10^... 详细信息

采用顶空气相色谱技术,检测以瑞香狼毒根部韧皮为原料所造直孔藏纸的抑菌效果,评价其抑菌性;通过家兔皮肤刺激试验、豚鼠皮肤变态反应试验及二者受试区皮肤的病理组织学变化,综合评价直孔藏纸毒理学安全性。研究结果表明,5 mL的2.9×10^(2 )CFU/mL大肠埃希氏菌菌液在培养容器为顶空瓶(20 mL)的条件下,通过气相色谱仪检测二氧化碳信号,简便计算出直孔藏纸抑菌率42.07±0.026%、雪梨纸16.14±0.021%、宣纸12.09±0.046%和新闻纸8.19±0.021%,直孔藏纸抑菌率同等条件下显著高于其他3种纸张;直孔藏纸对家兔皮肤的最高刺激指数为0、无刺激性反应,对豚鼠的皮肤变态反应试验致敏率为0%、致敏强度极轻,且直孔藏纸受试区皮肤病理组织学无异常变化。基于以上研究结果,认为直孔藏纸具有明显抑菌性和一定的安全性。

关键词：直孔藏纸瑞香狼毒顶空气相色谱抑菌性毒理学安全性评价

Advanced lignin-acrylamide water treatment agent by pulp and paper industrial sludge: Synthesis, properties and application

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Journal of Environmental Sciences 2013年第12期25卷 2367-2377页

作者： Hongyan Rong baoyu Gao Yanxia zhao Shenglei Sun Zhonglian Yang Yan Wang Qinyan Yue Qian Li Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong University

A novel flocculant LA （lignin-acrylamide polymer）, which was used as aid for aluminum sulfate and polyaluminum chloride in this study, was prepared by grafting acrylamide onto lignin that deriving from pulp and papermaking sludge. Physicochemical properties of LA were measured by X-ray photoelectron spectroscopy and scanning electron microscopy. The experimental outcome indicated acrylamide was grafted onto the lignin backbone successfully. The effects of LA addition were evaluated on coagulation performance and floc characteristics as a function of aluminum （Al） dosage, such as floc size, growth rate, strength and recoverability. Effects of different dosing sequences, Al dosed first and LA dosed first, were also investigated. LA used as coagulant aid markedly enhanced the removal efficiency of turbidity and dissolved organic carbon, especially at low Al dosages. The dissolved organic carbon removal efficiencies of aluminum sulfate and polyaluminum chloride at the Al dosage range selected in this study were improved more than 30% and 5% by LA, respectively. LA dramatically enlarged floc size and it was in the order： Al dosed first 〉 LA dosed first 〉 Al. Floc strength and recoverability were also improved by LA. LA played a significant role in charge neutralization, adsorption and bridging in floc formation.

关键词： pulp and paper industrial sludge graft copolymerization aluminum sulfate polyaluminum chloride floc characteristics