著名文学批评家奥尔特论《苍白的火》

本文指出,美国当代著名文学评论家奥尔特经过细致研究,对《苍白的火》这一堪称颠覆以往小说形式的独创作品给予了深入解析。奥尔特认为,《苍白的火》是当代自我意识小说的一个重要作品,始自塞万提斯的自我意识行为的双重性以及照镜子般的自我意识设计,在纳博科夫这部小说中无处不在,而且达到登峰造极的程度,即真实的和幻觉的、准确的和歪曲的、直接的和魔幻的感应均随处可见。《苍白的火》的四个板块的结构,堪称嬉戏般的循环式感应的构建。     

不同花色映山红花中熊果酸和齐墩果酸的含量比较

结合超声技术提取不同花色映山红花中熊果酸和齐墩果酸,建立RP-HPLC法测定其含量。采用Kromasil C18色谱柱(250mm×4.6mm,5μm),流动相为甲醇-0.2%磷酸水溶液(88∶12),光电二极管阵列检测器,检测波长210nm,流速0.8mL/min,柱温30℃。以保留时间和紫外光谱对分离出的组分予以定性确证,用峰面积进行定量。组分的质量浓度与其峰面积在一定的范围内呈现良好的线性关系,相关系数均为0.9999,熊果酸进样量在0.443～7.088μg,齐墩果酸进样量在0.247～3.952μg时呈现良好的线性关系,平均加样回收率分别为98.53%和98.36%,RSD分别为1.3%和1.5%(n=5)。方法灵敏、准确,重现性好,可用于不同花色映山红花中熊果酸和齐墩果酸含量的测定。     

Modeling the detection rates of fires in nuclear plants: development and application of a methodology for treating imprecise evidence

A model is developed for the detection time of fires in nuclear power plants, which differentiates between competing modes of detection and between different initial fire severities. Our state-of-knowledge uncertainties in the values of the model parameters are assessed from industry experience using Bayesian methods. Because the available data are sparse, we propose means to interpret imprecise forms of evidence to the develop quantitative information, which can be used in a statistical analysis; the intent is to maximize our use of all available information. Sensitivity analyses are performed to indicate the importance of structural and distributional assumptions made in the study. The methods used to treat imprecise evidence can be applied to a wide variety of problems. The specific equations developed in this analysis are useful in general situations, where the random quantity of interest is the minimum of a set of random variables (e.g., in "competing risks" models). The computational results indicate that the competing modes formulation can lead to distributions different from those obtained via analytically simpler models, which treat each mode independently of the others.     

激光刀口法声表面波分布图像化系统

介绍了激光刀口法声表面波(SAW)分布图像化高速测量系统的原理和系统构成,并进行了测试验证。通过将声表面波传播时引起的被测件表面微变转换为入射到光电二极管的光量变化,转换出的电信号下变频到中频进行检波和鉴相后输入到高速数据采集器,实现了约20min测试2620(x)×410(y)点阵,获取的声表面波振幅和相位数据重构声表面波分布的图像。     

现象学视野下《死火》的时间意向性

鲁迅名篇《死火》的时间意识具有现代品质。“空无的时间”和“充实的时间”是其并存的两种时间经验，它们分别体现了两种不同的意义建构模式。“抛入的此在时间”和“断裂的梦幻时间”是其共有的两种现在的瞬时类型，时间经验在当下瞬时呈“空间化”的聚集和撒播形状。从相对中看取绝对、虚无与实有的转化生成的时间“辨证性”，是其“中间物”意识的内核。     

2.4GHz双向功率放大器设计

当两个以上的网络互联时,由于无线局域网的工作频率较高,需要较高的发射功率来扩大其覆盖范围。而现有产品通信距离都比较小,而且实现双向收发的较少。该文提出了一种通过增大发射信号功率、提高放大接收信号灵敏度的方法,同时实现用于扩展2.4GHzISM频段802.11b/g无线局域网(WLAN)设备的工作范围的双向功率放大器的设计方法,实现了双向收发,并用ADS软件进行了仿真。仿真结果表明该设计可以直接应用于与IEEE802.11b/g兼容的无线通信系统中。     

水溶性膨胀型防火涂料的制备

本文对水溶性膨胀型防火涂料的制备条件进行了实验室规模的探讨.该涂料之基料与防火体系多为液体有机物质,相溶性好,因而涂膜不仅具有良好的阻燃防火性能,同时具有极好的透明性,很有开发价值.     

“Kids and Fires Are No Match”: Fire and Trauma Prevention for Teen Parents

The purpose of this work was to adapt findings from current research into a clinical intervention. A structured, prevention oriented presentation/discussion was developed along with a brief pre and post test measurement tool. The intervention goal was to help teen parents (N = 124), from high schools and job training centers, focus on the preventive issues of fire safety and trauma prevention for themselves and their children after a difficult life event. Findings included a significant increase (<.001) from pre to post test on intent to make their homes fire safe and to understand the importance of emotional support for themselves and their children at differing developmental ages. Unexpectedly, the comparison group of 81 adults from community programs, though starting with higher scores (p < .01) also showed significant improvement (p < .001) on these measures. It is important for social workers to adapt clinical research findings for dissemination.     

中国数字经济发展的时空分异及影响因素研究

党的二十大报告中明确提出了建设数字中国、加快发展数字经济。目前各地区间仍存在“数字鸿沟”问题，剖析数字经济发展的时空差异是实现数字经济均衡发展的重要前提。基于此，文章以2013—2019年中国31个省份的面板数据为样本，构建数字经济发展评价指标体系，通过熵权法计算出各省域数字经济的发展水平，运用Dagum基尼系数实证分析东中西地区数字经济发展水平的差异及时空变化规律，并通过地理探测器来考察经济社会因素对数字经济影响的时空分异。结果表明：北京、上海、江苏、浙江、山东和广东六地数字经济发展水平处于全国前列，而新疆、西藏、青海等西部地区数字经济发展程度较低。2013—2019年均增长率最大的地区是重庆，增幅达8.4%,其次是西藏、贵州和四川，年均增长率分别为8.3%、7.4%和4.8%。中国各地区数字经济发展差异明显，空间上呈现出自东向西阶梯递减的趋势。从时间分布来看，2013—2019年间，中国中西部整体的数字经济发展水平在提高，但东北地区省份数字经济水平处于波动下降趋势。总的来说，数字经济发展的时空分异明显。数字经济在东中西地区发展的不平衡主要是由区域间差异所引起，区域间基尼系数最大的为...