工程测量中异常数据的剔除

在测量数据为正态分布时，多用莱特准则剔除异常数据，但应注意莱特准则应用的条件是测量次数ｎ需满足ｎ≥１０；在测量数据为均匀分布时，在工程测量中，剔除异常数据可采用１．７３σ（Ｘ）作为判据，文章就此作了理论论证。应当指出，均匀分布是电测仪器仪表测量数据中的一种极为重要的分布，文章就此作了深刻的说明。显然，讨论工程测量中均匀分布的测量数据中异常数据的剔除，有着现实的工程意义。     

固定增益时变频谱整形滤波器的理论研究

在理论研究的基础上，文章提出用固定增益时变频谱整形滤波器来解决高频地震信号可记录性的新方案。并对滤波器的设计原理、工作过程及其对高频信号可记录性改善的效果作了详细分析。结果表明采用该滤波器可使高频地震信号可记录的极限频率提高的一倍。     

新型采集站直流漂移校正方法

直流漂移又称为零点漂移，将会使地震记录中产生无用的直流分量，必须设法从记录中消除掉。新型地震数据采集站的直流漂移主要来源于Δ－ΣＡ／Ｄ转换器输出的一位码（０．１）码，文章根据数字陷波器的原理，介绍了一种用于直流漂移校正的一阶和二阶直流陷波器及其设计方法，给出了采用ＴＭＳ３２０ Ｃ３０数字信号处理器实现直流漂移校正的结果，结果表明取得了满意的效果。     

基于VPN的电力调度数据网络安全方案

在分析电力调度数据网络现有的基于公钥数字证书的公钥基础设施/认证中心（PKI/CA）的安全系统基础上，针对调度数据网络中实时性与安全性需求之间的矛盾，提出了新的身份认证和密钥协商安全方案，通过改进基于有限域上离散对数的数字签名和密钥协商算法，将身份认证和密钥协商融合在一次会话中，并且使安全方案不依赖于第三方的在线证书系统，同时在现有的虚拟专用网（VPN）安全框架内对冗余功能进行了裁剪，取代了传统的PKI/CA体制，在保证电力调度数据网络安全性需求的同时满足了实时性需求。     

The possible significance of parallel changes in plasma lutein and retinol in Pakistani infants during the summer season

We established new cell lines from head and neck cancer patients for studies of adhesion molecules and cellular behavior in nine patients with primary or metastatic cancer treated at the Asan Medical Center. Explant cultures of fresh tumor tissue were used to develop new permanent tumor cell lines. Lines were tested for tumor formation and histology in nude mice. Flow cytometry and indirect immunofluorescence were used to assess DNA content and expression of the alpha 6, beta 4, and beta 1 integrin subunits and the intercellular adhesion molecule 1 (ICAM-1). In vitro growth patterns and adhesion to plastic were assessed using phase contrast microscopy. AMC-HN-1 to -8 were derived from patients with squamous cell carcinoma. AMC-HN-9 was from an undifferentiated carcinoma of the parotid gland. The 8 lines we tested produced nude mouse tumors that are identical to the histology of the original tumors. AMC-HN-1, -2, -5, and -9 have epithelioid or spindle cell morphology with poor cell-to-cell and cell-to-substrate adhesiveness. AMC-HN-3, -4, -7, and -8 grow as adherent epithelioid monolayers. AMC-HN-6 exhibits multilayer stratification. Four lines are near diploid, 4 are hyperdiploid and 1 is hypodiploid. Only three express ICAM-1. All lines express the alpha 6, beta 4, and beta 1 integrin subunits but to different extent. Four, AMC-HN-1, -2, -5, and -6, express the beta 4 integrin at low levels, AMC-HN-3, -4, -7, and -9, have intermediate beta 4 expression, and AMC-HN-8 has extremely high beta 4 expression. The AMC-HN cell lines are representative in vitro models for the study of head and neck cancer biology. Our preliminary results indicate a close relationship between integrin expression and cell adhesion in vitro.     

高强度低成本建筑钢筋的研究现状及其进展

以建筑用钢筋为研究对象 ,系统介绍了目前对于提高普通碳素钢强度的国内外研究现状和取得的成果。对目前已存在的各种技术方案进行了系统分析 ,进而对高强度低成本建筑钢筋今后的发展方向进行了预测。     

间歇升温处理对冷藏桃风味的影响

使还原糖酸的含量分别保持在50mg·g-1、3.2mg·g-1 间歇升温 ,可以有效防止绿化9号和重阳红桃在冷藏过程中还原糖的异常积累及酸含量的下降。并且使异味物质乙醇和乙醛得到有效释放或降解 ,保持了桃的良好风味。     

A preclinical model to assess the antigenicity of an HLA-A2 melanoma cell vaccine

BACKGROUND: The authors have demonstrated that immunization with melanoma whole-cell vaccine (MCV) augments T-cell responses to melanoma and that cytotoxic T-cells (CTL) recognize allogeneic melanoma-bearing shared HLA-A antigens. A preclinical model was developed to assess CTL activation in vitro using melanoma lines as stimulators. HLA-A2 expression is predominant in melanoma patients and plays a role in HLA class I restricted CTL killing of melanomas. The authors hypothesized that a MCV consisting of allogeneic HLA-A2 melanomas may be as good as autologous melanoma MCV for HLA-A2 patients. METHODS: CTL were generated from peripheral blood lymphocytes of patients with HLA-A2 melanoma by stimulation with autologous melanoma, allogeneic melanoma (HLA-A2 or non-HLA-A2), or allogeneic MCV (mixed HLA-A2 and non-HLA-A2 melanomas). RESULTS: HLA-A2 MCV and autologous melanoma were similar and significantly better stimulators than the others. Specificity also was supported by CTL killing and mixed lymphocyte tumor reaction assays. CONCLUSIONS: These studies provide important information for the studying immunization of patients with HLA-A2 melanoma with an allogeneic HLA-A2 MCV in a Phase I clinical trial.     

测井数字成像地面系统

文中介绍了国外石油测井公司近期推出的几种测井数字成象地面系统，并分析了当前国内数控测井的现状，指出了中国测井界将面临新的挑战。研制新的中国自己的测井数字成 面系统是摆在我们面前的紧迫任务。