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恶性淋巴瘤的中枢神经系统并发症——附80例临床分析

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上海第一医学院学报 1981年第1期 32-37页

作者：高金海孙曾一洪小南上海第一医学院肿瘤医院化疗科

近年来由于诊断方法、治疗措施特别是综合治疗的进展,恶性淋巴瘤的疗效已大为提高,但对本病的中枢神经系统并发症尚少有效防治方法,为提高这一并发症的诊断和治疗水平,对我科1964～1978年间所见的80例恶性淋巴瘤并发颅神经麻痹、单纯颅... 详细信息

近年来由于诊断方法、治疗措施特别是综合治疗的进展,恶性淋巴瘤的疗效已大为提高,但对本病的中枢神经系统并发症尚少有效防治方法,为提高这一并发症的诊断和治疗水平,对我科1964～1978年间所见的80例恶性淋巴瘤并发颅神经麻痹、单纯颅脑症状及脊髓损害进行分析和讨论。

关键词：中枢神经系统纵隔胸膜间间隙胸疾病并发症并发病颅神经麻痹骨髓侵犯淋巴瘤临床分析

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经后腹腔径路行腹腔镜输尿管上段切开取石术

微创医学 2008年第2期3卷 97-98页

作者：陶卫琦孙毅海梁宏苏小壮刘昕广西医科大学第三附属医院泌尿外科南宁市530031

目的探讨经后腹腔径路行腹腔镜输尿管上段切开取石术的临床经验。方法回顾分析经后腹腔径路行腹腔镜输尿管上段切开取石治疗输尿管上段结石28例的临床资料。结果28例手术均获成功,平均手术时间72min,术中平均出血35mL,随访25例12-24个月... 详细信息

目的探讨经后腹腔径路行腹腔镜输尿管上段切开取石术的临床经验。方法回顾分析经后腹腔径路行腹腔镜输尿管上段切开取石治疗输尿管上段结石28例的临床资料。结果28例手术均获成功,平均手术时间72min,术中平均出血35mL,随访25例12-24个月,无中远期并发症。结论建立在熟练腹腔镜操作技术的基础上和掌握好适应证,经后腹腔径路行腹腔镜输尿管上段切开取石治疗输尿管上段结石具有创伤小、治疗效果好等优点。在结石较大（1.5cm以上）、嵌顿、息肉包裹、输尿管迂曲、结石梗阻远端合并狭窄以及腔内手术失败等情况下考虑开放手术时,可以行腹腔镜手术代替开放手术。

关键词：经后腹膜腹腔镜输尿管上段结石

The Dynamics and Bifurcation Control of a Singular Biological Economic Model

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International Journal of Automation and computing 2012年第1期9卷 1-7页

作者： Ning Li hai-yi sun Qing-Ling Zhang Institute of Systems Science Northeastern University Shenyang 110819 PRC College of Science Shenyang Jianzhu University Shenyang 110168 PRC

The objective of this paper is to study systematically the dynamics and control strategy of a singular biological economic model that is described by a differential-algebraic equation. It is shown that when the economic profit passes through zero, this model exhibits the transcritical bifurcation, the Hopf bifurcation, and the limit cycle. In particular, the system undergoes the singularity induced bifurcation at the positive equilibrium, which can result in impulse. Then, state feedback controllers closer to the actual control strategies are designed to eliminate the unexpected singularity induced bifurcation and stabilize the positive equilibrium under the positive profit. Finally, numerical simulations verify the results and illustrate the effectiveness of the controllers. Also, the model with positive economic profit is shown numerically to have different dynamics.

关键词： Differential-algebraic equation transcritical bifurcation Hopf bifurcation limit cycle singularity induced bifurcation,bifurcation control.

The synthesis,characterization and X-ray diffractometry structure of fluorine-containing cyclobis(paraquat-p-phenylene) tetracation

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Chinese Chemical Letters 2010年第6期21卷 633-636页

作者： hai Tao Xi Tian Tian yi Xiao Qiang sun Key Laboratory of Fine Petrochemical Engineering Jiangsu Polytechnic UniversityChangzhou 213164China

Two novel fluorine-containing cyclophanes 1 and 2 incorporating a 1,4-bismethylfluorophenylene subunits have been synthesized via the template-directed clipping methodology and their structure was characterized by ~1H NMR,^(13)C NMR, MALDI-TOF-MS and elemental analysis.X-ray diffraction analysis of the solid state molecular structure showed that the complex units are linked by non-classical C-H…F hydrogen bonding.

关键词： Fluorine-cotiaining cyclophanes 1,4-Bis(bromomethyl)-2-fluorobenzene Crystal structure Synthesis

Collusion-Proof Result Inference in Crowdsourcing

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Journal of Computer Science & Technology 2018年第2期33卷 351-365页

作者： Peng-Peng Chen hai-Long sun yi-Li Fang Jin-Peng Huai State Key Laboratory of Software Development Environment School of Computer Science and Engineering Beihang University Beijing 100191 China Beijing Advanced Innovation Center for Big Data and Brain Computing Beijing 100191 China

In traditional crowdsourcing, workers are expected to provide independent answers to tasks so as to ensure the diversity of answers. However, recent studies show that the crowd is not a collection of independent workers, but instead that workers communicate and collaborate with each other. To pursue more rewards with little effort, some workers may collude to provide repeated answers, which will damage the quality of the aggregated results. Nonetheless, there are few efforts considering the negative impact of collusion on result inference in crowdsourcing. In this paper, we are specially concerned with the Collusion-Proof result inference problem for general crowdsourcing tasks in public platforms. To that end, we design a metric, the worker performance change rate, to identify the colluded answers by computing the difference of the mean worker performance before and after removing the repeated answers. Then we incorporate the collusion detection result into existing result inference methods to guarantee the quality of the aggregated results even with the occurrence of collusion behaviors. With real-world and synthetic datasets, we conducted an extensive set of evaluations of our approach. The experimental results demonstrate the superiority of our approach in comparison with the state-of-the-art methods.

关键词： crowdsourcing quality control collusion collaborative crowdsourcing result inference

Depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 335-345页

作者： Feng Zhang Chenyang Zhang Linlin Wu Wei sun Hongliang Zhang Jianhua Chen Yong Pei Songjiang Li Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral ResourcesSchool of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China State Key Laboratory of Mineral Processing Beijing General Research Institute of Mining&MetallurgyBeijing 100160China Hunan Provincial Key Laboratory of Micro&Nano Materials Interfaces Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China Department of Chemistry Xiangtan UniversityXiangtan 411105China China Railway Resource Group Co.Ltd Beijing 102300China

The depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite still lacked in-depth ***,the depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite was further systematically investigated with experiments and density functional theory(DFT)*** X-ray photoelectric spectroscopy(XPS)results,DFT calculation results,and frontier molecular orbital analysis indicated that sulfite ions were difficult to be adsorbed on sphalerite surface,suggesting that sulfite ions achieved depression effects on sphalerite through other non-adsorption ***,the oxygen content in the surface of sphalerite treated with sulfite ions in creased,which enhanced the hydrophilicity of the sphalerite and further increased the difference in hydrophilicity between sphalerite and ***,sulfite ions were chelated with lead ions to form PbSO_(3)in *** hydrophilic PbSO_(3)was more easily adsorbed on sphalerite than *** interaction between sulfite ions and lead ions could effectively inhibit the activation of *** addition the UV spectrum showed that after adding sulfite ions,the peak of perxanthate in the sphalerite treated xanthate solution was significantly stronger than that in the galena with xanthate solution,indicating that xanthate interacted more readily with sulfite ions and oxygen mo lecules within the sphalerite system,leading to the formation of ***,sulfite ions hardly depressed the flotation of ga lena and could promote the flotation of galena to some *** study deepened the understanding of the depression mechanism o sulfite ions on sphalerite and Pb^(2+)activated sphalerite.

关键词： sphalerite galena sulfite ion density functional theory depression mechanism

Fluorinated poly(p-triphenylene isatin) anion exchange membranes based on hydrophilic hydroxyl side chain modulation for fuel cells

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Journal of Energy Chemistry 2025年第1期100卷 702-709页

作者： yiman Gu Yanchao Zhang Zhanyu Li yijia Lei Baozeng sun Xiaoyu Yu Zhe Wang College of Chemistry and Life Science Changchun University of Technology College of Chemical Engineering Changchun University of Technology School of Materials Science and Engineering Changchun University of Technology Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province

The development of alkaline fuel cells is moving forward at an accelerated pace,and the application of ether-free bonded polymers to anion exchange membranes （AEMs） has been widely ***,the question of the“trade-off”between AEM ionic conductivity and dimensional stability remains *** strategy of inducing microphase separation to improve the performance of AEM has attracted much attention recently,but the design of optimal molecular structures is still being ***,this work introduced different ratios of 3-bromo-1,1,1-trifluoroacetone （x=40,50,and 60） into the main chain of poly（p-terphenylene isatin）.Because fluorinated groups have excellent hydrophobicity,hydrophilic hydroxyl-containing side chains are introduced to jointly adjust the formation of phase separation *** results show that PTI-PTF50-NOH AEM with the appropriate fluorinated group ratio has the best ionic conductivity and alkali stability under the combined effect of *** has an ionic conductivity of 133.83 mS cm-1at 80°*** addition,the OH-conductivity remains at 89%of the initial value at 80°C and 3 M KOH for 1056 h of *** cell polarization curve based on PTI-PTF50-NOH shows a power density of 734.76 mW cm-2at a current density of 1807.7 mA cm-2.

关键词： Anion exchange membranes Poly(p-terphenylene isatin) Hydrophilic-hydrophobic phase separation Fluorinated group

Algorithm of adjusting Weights of decision-makers and attribute in Multi-attribute Group Decision-making

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Algorithm of adjusting Weights of decision-makers and attrib...

A Novel Model for Describing Rail Weld Irregularities and Predicting Wheel-Rail Forces Using a Machine Learning Approach

第25届中国控制与决策会议

作者： sun yi Huang hai-feng School of Economics and Management Beijing University of Technology

ISBN: (纸本)9781467355339

This paper proposes an integrated algorithm to determine attribute weights and decision-makers weights in multi-attribute group decision-making. Firstly, the new weights of decision-makers are calculated by the grey correlation coefficients between the decision result of the individuals and the group and combining with the initial weights of decision-makers. Secondly, the new weights of attribute are calculated through entropy theory. Then, the weights adjustment is continued on the basis of taking into account the similarity of the two decision results of the group by two orders Minkowski distance, and the above process will be repeated to get steady weights and final result of the group. Finally, a numerical example to evaluate the venture capital firm shows the feasibility and practicability of the proposed algorithm.

关键词： Multi-attribute group decision-making Weights adjustment Grey correlation Entropy theory

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 555-577页

作者： Linlin sun Zihui Wang Shukun Cui Ziquan Yan Weiping Hu Qingchun Meng State Key Laboratory of High-Speed Railway Track System China Academy of Railway Sciences Corporation LimitedBeijing100081China Railway Engineering Research Institute China Academy of Railway Sciences Corporation LimitedBeijing100081China School of Aeronautic Science and Engineering Beihang UniversityBeijing100191China

Rail weld irregularities are one of the primary excitation sources for vehicle-track interaction dynamics in modern high-speed *** can cause significant wheel-rail dynamic interactions,leading to wheel-rail noise,component damage,and *** researchers have employed the vehicle-track interaction dynamic model to study the dynamic interactions between wheel and rail induced by rail weld geometry ***,the cosine wave model used to simulate rail weld irregularities mainly focuses on the maximum value and neglects the geometric *** this study,novel theoretical models were developed for three categories of rail weld irregularities,based on measurements of the high-speed railway from Beijing to *** vertical dynamic forces in the time and frequency domains were compared under different running *** forces generated by the rail weld irregularities that were measured and modeled,respectively,were compared to validate the accuracy of the proposed ***,based on the numerical study,the impact force due to rail weld irrregularity is modeled using an Artificial Neural Network(ANN),and the optimum combination of parameters for this model is *** results showed that the proposed model provided a more accurate wheel/rail dynamic evaluation caused by rail weld irregularities than that established in the *** ANN model used in this paper can effectively predict the impact force due to rail weld irrregularity while reducing the computation time.

关键词： Rail weld irregularity high-speed railway vehicle-track coupled dynamics wheel/rail dynamic vertical force artificial neural networks