A little too much of the buchenwald touch? Military radiation research at the university of Cincinnati, 1960–1972

From 1960 through 1972, Dr. Eugene Saenger oversaw the experimental administration of lethal and near‐lethal doses of radiation to hospital patients at the University of Cincinnati. These experiments were funded by the US Department of Defense, and were specifically designed to acquire military information on the effects of radiation in combat soldiers. Although Saenger's research was terminated after public exposure in 1971, a full and detailed account has not been available until now. The account provided by the President's Advisory Committee on Human Radiation Experiments (ACHRE) in their Final Report of 1995 was incomplete. Our account is based on a reanalysis of all the material available to ACHRE, including highly critical peer reviews by U.C. faculty members. We also present, for the first time, several case histories taken from the medical records of Dr. Saenger's subjects.     

国外电磁篱笆建设要素分析

日益增长的空间碎片对航天器和有限的轨道资源构成了严重的威胁,电磁篱笆是功率强大的地球中低轨道空间碎片监测设备.文中就国际上具有代表性的电磁篱笆,即美国和法国的电磁篱笆在建设过程中考虑的要素进行了详细分析,主要从地理位置、空域监视屏几何形状、性价比这3个方面因素进行了对比,并归纳了各自设计中的特点和优势.最后就国外电磁篱笆的发展趋势进行了分析和总结.     

纯电动汽车磁助力启动制动结构设计

根据纯电动汽车整丰在运行条件下制动力矩的需求，设计了一种磁助力启动制动系统。利用电磁同性相斥、异性相吸的原理，根据车轮速度时时变化控制和改变磁极磁性，在汽车起步和制动过程起到磁助力作用。计算了电磁启动制动力矩，设计了电磁制动控制电路。基于ECE法规设计了制动力分配算法，计算表明：在高响应测速传感器的反馈控刺中，磁动力启动制动结构能够迅速有效地起到助力作用，为改善纯电动汽车的行车效能提供了新的思路。     

三态电磁控制器存在问题及改进措施

本文对三态电磁控制器的原理及其存在的问题进行分析，并针对现存问题提出了有效的改进方案     

Toward increased public representation on bioethics committees: Lessons from Judging the cold war human radiation experiments∗

The process of judging the Cold War Human Radiation Experiments illuminates a need to develop a model for an appropriate public role on bioethics committees. A citizen representative was appointed to the President's Advisory Committee on Human Radiation Experiments, and the Committee solicited broad public participation in their investigation. However, many members of the affected and interested public desired further representation on the Committee, as they tended towards stronger ethical condemnations of the experiments than the Committee expressed. I offer an account of a testimony before the Committee by a radiation experiment subject's survivor to illustrate this contrast in moral perspective. I consider some the contributions that “non‐expert”; public members can add to committee deliberations, and suggest that concerns about public representatives may be overcome with the guidance of clearer principles for selecting public members. Further efforts to increase membership by the general and affected public on bioethics committees will enhance deliberations and help realize the democratic ideals of bioethics.     

Non-linear autoregressive time series with multivariate Gaussian mixtures as marginal distributions

A new form of non-linear autoregressive time series is proposed to model solar radiation data, by specifying joint marginal distributions at low lags to be multivariate Gaussian mixtures. The model is also a type of multiprocess dynamic linear model, but with the advantage that the likelihood has a closed form.     

纺织品传热机理的理论探讨

文章分析了纺织品传热机理。从宏观角度看，纺织品作为纺织纤维和空气的集合体，其传热途径包括传导、对流、辐射和伴随着水汽传输而发生的潜热传递；从微观角度看，纺织品是以声子作为载体实现热传导的。     

结合频域有限差分法分析二维柱体电磁散射

引入多波前算法,提出了结合频域有限差分法分析二维柱体的电磁散射问题。数值计算过程中利用Murs二阶吸收边界条件和场平均吸收条件截断网格;作为算例,分析了一无限长理想导体柱对平面电磁波的散射,由于使用了多波前算法求解差分矩阵方程,大大地减少了计算时间,数值结果表明了该方法的有效性。     

公共文化项目辐射的“四维度、三层次”评价

《“十二五”文化改革发展纲要》明确提出“要不断完善我国公共文化服务的理论体系”，公共文化项目的文化辐射评价是其中的一个重要组成部分。针对公共文化项目的四个悖论特征，借鉴美国系统性评价工程（ ACIP）评价理论，提出了公共文化项目文化辐射评价的四个维度：文化强度、文化耦合、文化距离和文化势能，并结合项目层、项目网络层、项目影响人群层的3个层次分析，对我国当前公共文化项目文化辐射评价体系的构建进行理论探索。     

放射治疗可变野准直器的研究与设计

在总结归纳了不同时期放射治疗设备准直器的设计和应用之后,分析了它们的优点以及不足,提出了可变野准直器。它是采用机电一体化和机器人技术原理设计而成,并模拟IMRT的方式进行准直器调强的验证。对提出的可变野准直器的原理和特点进行解释,对设计方案进行了详细阐述。该设备活动空间增大,改进了特殊部位肿瘤的治疗,成为先进放疗系统中最关键的部件之一。