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伊太普水电站导流闸门的使用和重复使用(下)

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东北水利水电 1985年第8期 47-53页

作者： j·R菲拉巴尔 R·C蒙梯罗 A·E拉伊翁尼斯 j·h古默 j·P瓦龙克斯原玉琴华东水利学院

闸门结构图8示出导流闸门概貌,闸门设计成柔性结构,关闭时,荷载传递到轮子,弹性垫座可被压缩,使每一节轮子都可调正到与埋件紧贴的位置,使边纵梁受力均匀。闸门制造成10节,宽8230毫米。上面9节各高2050毫米,下游面板,每节重294千牛。为... 详细信息

闸门结构图8示出导流闸门概貌,闸门设计成柔性结构,关闭时,荷载传递到轮子,弹性垫座可被压缩,使每一节轮子都可调正到与埋件紧贴的位置,使边纵梁受力均匀。闸门制造成10节,宽8230毫米。上面9节各高2050毫米,下游面板,每节重294千牛。为了闸门的平衡和减小

关键词：导流闸门进水口闸门螺柱弹性力学性能垫座液压启闭机闸门止水止水橡皮重复使用

Resistive field generation in intense proton beam interaction with solid targets

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Matter and Radiation at Extremes 2024年第1期9卷 35-43页

作者： W.Q.Wang j.j.honrubia Y.Yin X.h.Yang F.Q.Shao Department of Physics National University of Defense TechnologyHunanChina ETSI Aeronáutica y del Espacio Universidad Politécnica de MadridMadridSpain Department of Nuclear Science and Technology National University of Defense TechnologyHunanChina

The Brown-Preston-Singleton(BPS)stopping power model is added to our previously developed hybrid code to model ion beam-plasma *** simulations show that both resistive field and ion scattering effects are important for proton beam transport in a solid target,in which they compete with each *** the target is not completely ionized,the self-generated resistive field effect dominates over the ion scattering ***,when the target is completely ionized,this situation is ***,it is found that Ohmic heating is important for higher current densities and materials with high *** energy fraction deposited as Ohmic heating can be as high as 20%-30%.Typical ion divergences with half-angles of about 5°-10°will modify the proton energy deposition substantially and should be taken into account.

关键词： interaction beam intense

东莨菪素与β-环糊精及其衍生物的分子识别研究

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云南大学学报(自然科学版) 2024年

作者：马水仙古捷夏沙梅燕飞陶欣杨玉香杨丽娟云南医药健康职业学院云南民族大学化学与环境学院云南省高校智能超分子化学重点实验室生物基材料绿色制备技术国家地方联合工程中心

以天然药物东莨菪素（SC）为客体，β-环糊精（β-CD）及其衍生物（hP-β-CD、TM-β-CD）为主体，采用饱和溶液法分别制备SC/β-CD、SC/hP-β-CD和SC/TM-β-CD 3种包合物（SC/CDs）.通过紫外-可见吸收光谱法（UV-Vis）研究SC/CDs的包合... 详细信息

以天然药物东莨菪素（SC）为客体，β-环糊精（β-CD）及其衍生物（hP-β-CD、TM-β-CD）为主体，采用饱和溶液法分别制备SC/β-CD、SC/hP-β-CD和SC/TM-β-CD 3种包合物（SC/CDs）.通过紫外-可见吸收光谱法（UV-Vis）研究SC/CDs的包合比、水溶性及其稳定性.采用傅里叶红外光谱（FT-IR）、扫描电镜（SEM）和X射线粉末衍射（XRD）等方法对SC/CDs进行表征.利用核磁共振（1h NMR、2D NMR）和分子对接对SC/CDs的包合模式进行模拟计算.结果表明，SC/CDs均制备成功，且SC的A环从CDs的大口端（h3）进入空腔内部，主-客体间以氢键和疏水作用力形成包合物，包合比均为1∶1.天然药物SC形成包合物后，其水溶性及稳定性均得到提高，且在ph=5.0的条件下更容易形成包合物，为SC药物制剂的应用提供实验依据.

关键词：东莨菪素 β-环糊精及其衍生物分子识别水溶性稳定性分子对接

The quasi-Gramian solution of a non-commutative extension of the higher-order nonlinear Schr?dinger equation

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Communications in Theoretical Physics 2024年第3期76卷 51-61页

作者： h W A Riaz j Lin Department of Physics Zhejiang Normal UniversityJinhua 321004China

The nonlinear Schr?dinger(NLS)equation,which incorporates higher-order dispersive terms,is widely employed in the theoretical analysis of various physical *** this study,we explore the non-commutative extension of the higher-order NLS *** treat real or complex-valued functions,such as g_(1)=g_(1)(x,t)and g_(2)=g_(2)(x,t)as non-commutative,and employ the Lax pair associated with the evolution equation,as in the commutation *** derive the quasi-Gramian solution of the system by employing a binary Darboux *** soliton solutions are presented explicitly within the framework of *** visually understand the dynamics and solutions in the given example,we also provide simulations illustrating the associated ***,the solution can be used to study the stability of plane waves and to understand the generation of periodic patterns within the context of modulational instability.

关键词： integrable systems Darboux transformation solitons

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Convexification of hybrid AC-DC Optimal Power Flow with Line-Commutated Converters

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CSEE journal of Power and Energy Systems 2024年第2期10卷 617-628页

作者： hongyuan Liang Zhigang Li j.h.Zheng Q.h.Wu School of Electric Power Engineering South China University of TechnologyGuangzhou 510641China

Line-commutated converter (LCC)-based high-voltage DC (hVDC) systems have been integrated with bulk AC power grids for interregional transmission of renewable power. The nonlinear LCC model brings additional nonconvexity to optimal power flow (OPF) of hybrid AC-DC power grids. A convexification method for the LCC station model could address such nonconvexity but has rarely been discussed. We devise an equivalent reformulation for classical LCC station models that facilitates second-order cone convex relaxation for the OPF of LCC-based AC-DC power grids. We also propose sufficient conditions for exactness of convex relaxation with its proof. Equivalence of the proposed LCC station models and properties, exactness, and effectiveness of convex relaxation are verified using four numerical simulations. Simulation results demonstrate a globally optimal solution of the original OPF can be efficiently obtained from relaxed model.

关键词： AC-DC power system convex relaxation linecommutated converter optimal power flow second-order cone programming