钢帘线用高碳钢(82B)氧化物夹杂控制热力学

用热力学方法预测了高碳帘线钢 (82B)中强脱氧元素的含量与各阶段脱氧产物组成之间的关系。指出在合金化阶段当钢中w ([Al]) <3× 10 - 6 时 ,一次脱氧产物为具有良好变形能力的锰铝榴石 ,相应的一次脱氧产物析出量小于 10 %。钢液在冷却和凝固阶段析出的脱氧产物组成决定于钢液中钙和铝的相对含量 ,控制钢液中w ([Al]) <3.5× 10 - 6 就可避免析出Al2 O3。这时的二、三次脱氧产物组成随钢液中钙含量的高低可分别为假硅灰石、钙斜长石或莫来石。     

洼82断块稠油油藏治砂对策研究

在对洼82断块稠油油藏出砂机理研究分析的基础上，提出了综合治理该块出砂问题的策略。初步选择管内砾石充填压裂防砂、侧钻井或新井先期砾石充填防砂等系列复合防砂技术，作为该块的主要防砂技术。此外，由于高温人工井壁防砂技术取得了一定的突破，也可作为备选技术之一。     

High temperature behavior of Ni-base weld metal: Part I. Ductility and microstructural characterization

The ductility dip cracking resistance of two Ni-base Filler metals, Filler Metal 52 (FM-52) (59%Ni–29%Cr–9%Fe–1%Mn–1%Al) and Filler Metal 82 (FM-82) (72%Ni–20%Cr–1%Fe–3%Mn–3%Nb) was evaluated using the strain-to-fracture (STF) test. The reinterpretation of previously reported STF test results for these filler metals, is discussed, based on detailed microstructural characterization performed using electron microscopy. In Part II of this paper, new insight into the creep-like, grain boundary (GB) sliding mechanism responsible for intergranular cracking in these filler metals is presented.     

D82A数据采集卡在超声波氯气流量中的应用

本文论述了将Ｄ８２Ａ数据采集卡应用到超声波氯气流量计中，通过对采集数据的分解，精确地确定超声波传播的超声时和声时差。本文主要是讨论数据处理的方法。最后，作者对结果进行了讨论并和其它超声波测流量的方法作了比较．     

Carport im Vorgartenbereich

Nur wenn die (in der Bauklasse I und II) zul?ssige Errichtung auf der Abstandsfl?che unzumutbar ist, kommt eine Errichtung eines Carports im Vorgarten in Betracht.     

Gd@C82 metallofullerenes for neutron capture therapy—fullerene solubilization by poly(ethylene glycol)-block-poly(2-(N,N-diethylamino)ethyl methacrylate) and resultant efficacy in vitro

Abstract

Poly(ethylene glycol)-block-poly(2-(N,N-diethylamino)ethyl methacrylate) (PEG-b-PAMA) was found to solubilize fullerenes such as C₆₀, and this technique was applied to metallofullerenes. Gd@C₈₂ was easily dissolved in water in the presence of PEG-b-PAMA without any covalent derivatization, forming a transparent complex about 20–30 nm in diameter. Low cytotoxicity was confirmed in vitro. Neutron irradiation of cultured cells (colon-26 adenocarcinoma) with Gd@C₈₂-PEG-b-PAMA-complexed nanoparticles showed effective cytotoxicity, indicating the effective emission of gamma rays and internal conversion electrons produced from the neutron capture reaction of Gd. This result suggests a potentially valuable approach to gadolinium-based neutron capture therapy.     

Study on rolling process optimization of high carbon steel wire

The existing problems in the manufacture of SWRH82B high carbon steel wire were discussed by sampling and testing the microstructure and properties of the steel from the workshop. To solve the problems, the experimental parameters for thermal simula- tion were optimized, and the thermal simulating experiments were carried out on a Gleeble1500 thermal simulator. The process pa- rameters for the manufacture were optimized after analysis of the data, and the productive experiments were performed after the wa- ter box in front of the no-twist blocks was reconstructed, to control the temperature of the loop layer. The results from the productive experiments showed that the cooling rate of 10-15°C/s was reasonable before phase transformation, about 5°C/s during phase trans- formation, and 600-620°C was the suitable starting temperature for phase transformation. The ultimate strength of the φ11.0 mm wire was increased to 1150-1170 MPa with an increase of 20-30 MPa, the percentage reduction of section was to 34%-36% with an increase of 1%-3% by testing the finished products after reconstruction.     

JSR135的设计与实现

JSR135是J2ME平台上重要的optionalpackage,提供了多媒体的播放功能。论文简单介绍了JSR135的规范,提出了JSR135的一种跨平台设计方案,着重介绍了Windows系列操作系统上的设计和实现。     

对角递归神经网络在82B钢力学性能预估中的应用

 神经网络应用于系统建模时要考虑两个关键问题：一是采用的神经网络类型;二是当神经网络类型确定以后,确定网络的输入向量,这两个问题是紧密关联的。相对于BP神经网络收敛太慢,具有泛化能力的缺点,DRNN网络(对角递归神经网络)能实现动态非线性映射,具有记忆功能,可以追踪模型的变化,具有更好的预测效果。首先用关联规则方法挖掘出一些与质量指标有关的工艺条件,再结合现场工人的实际经验,找到模型的输入输出,再运用DRNN对82B钢进行建模和优化,取得了很好的预测效果。     

基于CAN总线智能节点通信接口的设计

介绍CAN总线的通信协议和CAN控制器SJA 1000,提出以单片机P 89C 52X 2BN和CAN控制器SJA 1000为核心,组成CAN总线智能节点的通信接口设计方法,详细介绍了设计的硬件电路原理图和控制器SJA 1000的初始化、发送和接收模块程序的设计方法。设计内容较好地解决了智能节点的通信要求。