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放射学实践 1997年第2期12卷 91-92页

作者：张林 u.hess M.Groβ K.Lehner A.Cavallaro Chr.Harnnig 同济医科大学附属同济医院

An efficient method for unfolding kinetic pressure driven VISAR data

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High Power Laser Science and Engineering 2015年第3期3卷 50-58页

作者： M.hess K.Peterson A.Harvey-Thompson Sandia National Laboratories

Velocity Interferometer System for Any Reflector(VISAR) [Barker and Hollenbach, J. Appl. Phys. 43, 4669(1972)]is a well-known diagnostic that is employed on many shock physics and pulsed-power experiments. With the VISAR diagnostic, the velocity on the surface of any metal flyer can be found. For most experiments employing VISAR, either a kinetic pressure [Grady, Mech. Mater. 29, 181(1998)] or a magnetic pressure [Lemke et al., Intl J. Impact Eng. 38,480(2011)] drives the motion of the flyer. Moreover, reliable prediction of the time-dependent pressure is often a critical component to understanding the physics of these experiments. Although VISAR can provide a precise measurement of a flyer's surface velocity, the real challenge of this diagnostic implementation is using this velocity to unfold the timedependent pressure. The purpose of this paper is to elucidate a new method for quickly and reliably unfolding VISAR data.

关键词： laser driven blast wave pulsed-power VISAR

术前判断腭咽关闭功能对上颌骨前移手术设计的价值

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放射学实践 1996年第4期11卷 164-166页

作者： hess.,u 游学俊同济医科大学附属同济医院

术前判断腭咽关闭功能对上颌骨前移手术设计的价值ＤｉｅＢｅｗｅｒｔｕｎｇｄｅｓｖｅｌｏｐｈａｒｙｎｇｅａｌｅｎＶｅｒｓｃｈｌｕｓｓｅｓｚｕｒｐｒａｏｐｅｒａｔｉｖｅｎＰｌａｎｕｎｇｄｅｒＯｂｅｒｋｉｅｆｅｒｖｏｒｖｅｒ... 详细信息

术前判断腭咽关闭功能对上颌骨前移手术设计的价值ＤｉｅＢｅｗｅｒｔｕｎｇｄｅｓｖｅｌｏｐｈａｒｙｎｇｅａｌｅｎＶｅｒｓｃｈｌｕｓｓｅｓｚｕｒｐｒａｏｐｅｒａｔｉｖｅｎＰｌａｎｕｎｇｄｅｒＯｂｅｒｋｉｅｆｅｒｖｏｒｖｅｒｌａｇｅｒｕｎｇ￥Ｕ．Ｈｅｓｓ，Ｃ...

关键词：上颌骨前移外科手术腭咽关闭功能

HVDC Macrogrid Modeling for Power-flow and Transient Stability Studies in North American Continental-level Interconnections

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CSEE Journal of Power and Energy Systems 2017年第4期3卷 390-398页

作者： Marcelo A.Elizondo Nihal Mohan James O’Brien Qiuhua Huang David Orser Warren hess Hilary Brown Wenchun Zhu Divya Chandrashekhara Yuri V.Makarov Dale Osborn James Feltes Harold Kirkham David Duebner Zhenyu Huang Pacific Northwest National Laboratory RichlandWA 99354USA Midcontinent Independent System Operator EaganMN 55121USA Siemens PTI SchenectadyNY 12305USA

voltage direct current(HVDC)transmission lines are being constructed throughout the world,aided by advancements in power electronics and the potential value to transfer power between distant areas and off-shore *** HVDC lines within and across large AC interconnections could bring about economic benefits such as interregional capacity exchange and transfer of low-cost,distant electric energy directly to load *** addition,network configuration of HVDC lines could result in additional benefits that have not been deeply *** paper describes the modeling process for continentallevel power system interconnections with the addition of multiple HVDC lines configured as a *** models used for study are based on industry-accepted power-flow and dynamic system models for the North American Eastern and Western *** model provides insight on feasibility and initial steady-state and stability tests of the HVDC macrogrid and its interactions with the existing electricity infrastructure,opening the door to analysis of the technical value of such a macrogrid.

关键词： HVDC models HVDC transmission modeling power-flow power system dynamic stability power system planning

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视觉皮层分区的功能MRI视网膜脑图

中华放射学杂志 2007年第10期41卷 1045-1048页

作者：卢光明张志强黄伟郑罡鲍盛李兴峰 Robert F.hess 何晖光吕彬黄振平马飞尹婕邵庆南京军区南京总医院医学影像科 210002 加拿大McGill大学影像研究中心中国科学院自动化所复杂系统与智能科学重点实验室南京军区南京总医院医学眼科 210002

目的探讨功能 MRI(fMRI)视网膜脑图描绘人视觉皮层各视区的技术方法和生理意义。方法采用1.5 T 超导 MR 设备,运用2种具有相位编码信息的投影刺激:离心外散和向心内聚的光环刺激,以及顺时针和逆时针方向旋转的极角刺激,对6名正常人(受试... 详细信息

目的探讨功能 MRI(fMRI)视网膜脑图描绘人视觉皮层各视区的技术方法和生理意义。方法采用1.5 T 超导 MR 设备,运用2种具有相位编码信息的投影刺激:离心外散和向心内聚的光环刺激,以及顺时针和逆时针方向旋转的极角刺激,对6名正常人(受试者)进行血氧水平依赖(BLOD)的 fMRI。将检测数据进行头动校正、配准等空间预处理,再根据刺激视野的时间相位编码,经傅立叶变换计算出视野特征,得到完整的视网膜脑图,并以二维和三维可视化方式显示。结果成功得到6名受试者初级视觉皮层的个体化分区图,描绘出视区 V1、V2(V2腹侧和背侧)、V3和 VP、V3A 和 V4V、V7和 V8等视区的精细分区,各视区以一定的拓扑结构分布于枕叶皮层。结论 fMRI视网膜脑图技术可以无创、精确地显示人脑视觉皮层功能分区。

关键词：磁共振成像视觉皮层视区