稠油油藏注蒸汽储层热伤害规律实验研究

针对稠油油藏注蒸汽过程中储层的热伤害问题，研究了稠油油藏热采过程注入的高温、高pH 热流体对储层 渗透率的影响，研究中利用正反向流动实验方法，研究了高温冷凝液注入疏松砂岩后引起的微粒运移作用及储层渗透 率的变化特征；并利用储层矿物的水热反应实验，分析了疏松砂岩油藏注蒸汽开发过程中的微粒运移机理。实验结果 表明，注蒸汽过程中，稠油油藏储层渗透率随温度及pH 值的升高而降低。高速流动的蒸汽及冷凝液造成储层内固相 微粒的运移及滞留，使储层非均质性进一步加剧；同时，高温、高pH 的蒸汽冷凝液既促使黏土矿物发生膨胀又造成储 层矿物发生溶解与转化，从而进一步加剧了稠油油藏疏松砂岩储层的储层热伤害。     

Indoor Climate and Thermal Comfort from a Long-Term Perspective

ABSTRACT

This article discusses how a Swedish wooden burgher house, the mid-1660s Burmeister House, was adapted over the course of 250 years to satisfy ever-changing expectations of thermal comfort. The investigation is based on the climatic conditions of the Nordic Region, where the issue of thermal comfort is crucial when attempting to understand the development of indoor environments. The article explores how spatiality, heating, and interior decor and furnishing operated and affected the inhabitants' experiences of indoor climate and thermal comfort. The results show that Burmeister House followed a general pattern of improvement, especially with regard to innovations in heating. Burmeister House ceased to be a private residence when it was restored and turned into a historic house museum. Rather than revealing its history, restorations carried out in the twentieth century worked to conceal or remove most of the building's more recent history. As a consequence, the house has become more difficult to use since it can no longer be efficiently heated.     

扩散硅压力传感器零点温漂补偿的简便方法

从电桥平衡出发，提出对电桥桥臂一串一并的十几种补偿方法归结为两种，从而简化了数学计算和补偿工作的繁杂性，并对导出的两套公式的使用方法，加以说明，理论和实验得到了较好的验证。     

热印多层次图像的热印头电阻值离散性校正

研究了影响热敏图像层次的主要因素。通过对实验数据的分析，提出了热印头热印电阻值离散性校正的软件和硬件实施方法。     

A Spatio-Temporal Model for Functional Magnetic Resonance Imaging Data – with a View to Resting State Networks

Abstract.  Functional magnetic resonance imaging (fMRI) is a technique for studying the active human brain. During the fMRI experiment, a sequence of MR images is obtained, where the brain is represented as a set of voxels. The data obtained are a realization of a complex spatio-temporal process with many sources of variation, both biological and technical. We present a spatio-temporal point process model approach for fMRI data where the temporal and spatial activation are modelled simultaneously. It is possible to analyse other characteristics of the data than just the locations of active brain regions, such as the interaction between the active regions. We discuss both classical statistical inference and Bayesian inference in the model. We analyse simulated data without repeated stimuli both for location of the activated regions and for interactions between the activated regions. An example of analysis of fMRI data, using this approach, is presented.     

热涨落对Josephson效应的影响

采用模拟粒子在势场中的布朗运动去讨论热涨落对小电容时Josephson效应的影响 ,得到热涨落存在时Joseph son结的电流—电压特性 ,计算结果与实验相符合     

供热系统的模糊信息分析与预测

本文通过对供热网中的不确定性信息的分析，给出了供热网的模糊数学模型、模糊信息预测方法及供热网信息预测算例。本文对系统信息管理及预测具有参考价值。     

基于ANSYS的热成形模具结构优化

基于冲压成型工艺试验分析系统,针对模具内材料受热膨胀将对模具导向装置及结构造成干涉的问题,利用有 限元分析软件ANSYS对模内温度场进行热力耦合分析,得出各部分材料的热膨胀程度。为基于正向压边模架的模内加 热装置提供可靠的实验参数和热力学设计依据,提高了模具结构设计的合理性,达到优化设计的目的。     

红外对管检测装置

本文提出了一种在工厂装配线上对成批的近红外线发光二极管和光电二极管进行筛选的工艺，并为此设计了一台实用的检测装置。     

浅谈体育教学中的"热损伤"

夏季的到来,炎热高温的天气给室外体育课带来了许多安全问题;在教学中做好预防和治疗高温对学生机体产生的影响。