Zk线性码的对称形式的MacWilliams恒等式

该文定义了Zk线性码的码字的对称重量计数公式，利用离散的Hadamard变换，建立了线性码与其对偶码之间的对称形式的MacWilliams恒等式．     

灰色模型和支持向量机组合的预测模型及其应用

针对流行色的季节性、时变性变化特点,提出一种灰色模型和支持向量机相融合的流行色预测模型.首先,分别采用灰色模型和支持向量机模型对女装流行色进行预测,然后,组合两种模型预测结果得到最终预测结果,最后,以2000～2011年度女装流行色进行仿真预测实验.结果表明,相对于其它预测模型,灰色支持向量机模型更能反映女装流行色动态变化规律,提高了女装流行色预测精度,丰富了女装流行色预测理论.     

Overexpression and elevated plasma level of tumor-associated antigen 90K/Mac-2 binding protein in colorectal carcinoma

The cancer cell secretome may contain potentially useful biomarkers. Previously, we have analyzed the colorectal carcinoma (CRC) cell secretome. In this study, tumor‐associated antigen 90K (TAA90K)/Mac‐2 binding protein (Mac‐2BP), one of the CRC cell secreted proteins, was chosen for evaluation as a potential CRC biomarker because its mRNA level was also found to be significantly elevated in CRC tissues and in a more metastatic CRC cell line from the analysis of two public domain array‐based datasets. Immunohistochemical analysis of 241 CRC specimens showed that TAA90K/Mac‐2BP was positively detected in 52.7% of the tumors, but weakly or not detected in over 95% of the adjacent nontumor epithelial cells. The plasma TAA90K/Mac‐2BP levels were significantly higher in CRC patients (N = 280) versus healthy controls (N = 147) (7.77 ± 3.49 vs. 5.72 ± 2.67 μg/mL, p<0.001). Moreover, combination of TAA90K/Mac‐2BP and carcinoembryonic antigen (CEA) could outperform CEA alone in discriminating CRC patients from healthy persons in this case‐control study. Our results collectively indicate that analysis of cancer cell secretome is a feasible strategy for identifying cancer biomarker candidates, and the TAA90K/Mac‐2BP may be a potential CRC biomarker.     

Mac-10捕收剂优先浮选高硫含铜矿石新工艺

以Mac-10为捕收剂，研究新桥硫铁矿高硫含铜矿石降低药剂成本、提高选矿指标的新工艺。结果表明，在石灰用量3kg／t、矿浆pH9．5左右、Mac-10用量48g／t的条件下，采用Mac-10优先选铜工艺浮选新桥硫铁矿，可获得铜品位14．28％、金品位16．94g／t，铜回收率84．47％、金回收率34．42％的铜精矿，与黄药工艺相比，铜精矿品位提高3．97％，铜回收率提高1．26％，铜精矿中金的品位和回收率分别提高7．42g／t和8．64％。     

Social influences related to college students’ use of Macintosh computers on an all-PC campus

In the present qualitative research study, 35 Mac users were interviewed in a university campus that exclusively supports PC machines. We particularly explored the Mac-users’ social influences, saving technological and other influences for future reports. Results showed Mac users to possess significant connections with other Mac users on the university campus. The Mac users in our study indicated that positive, past exposure, including Apple’s advertising of Macs, had sharp influences on their decisions to become and remain Mac users.     

计算机MAC地址和IP地址的探讨

随着计算机技术的发展,许多用户都安上了宽带,但大部分ISP都将MAC地址与IP地址绑定,本文介绍了两种地址的不同概念,并说明了获取两种地址的几种方法。还给出了使用JAVA语言获取MAC地址的源代码。     

计算机MAC地址和IP地址的探讨

随着计算机技术的发展，许多用户都安上了宽带，但大部分ISP都将MAC地址与IP地址绑定，本文介绍了两种地址的不同概念．并说明了获取两种地址的几种方法。还给出了使用JAVA语言获取MAC地址的源代码。     

Captured Kriegsmarine Enigma Documents at Bletchley Park

Abstract

The discovery of intercepts in the Japanese “Orange Translations” regarding the sinking of merchant ships (marus) bearing allied POWs led to the conclusion that the Joint Intelligence Center Pacific Ocean Area (JICPOA) gave latitudes and longitudes of these vessels to the Commander, Submarine Force, Pacific (ComSubPac) knowing that POWs would be killed. An examination of the “Orange Translations” reveals that most of the intercepts are from the Japanese Water Transport Code (2468) system, not the “Maru Code” (JN-11). The author concludes that while JICPOA provided ComSubPac with convoy coordinates, they were unaware of the presence of POWs on the marus.     

高性能音频方案配置可编程DSP及丰富软件

不知何时起, "软件为王"开始成为系统设计的基础.Wintel的时代,只有PC的零售广告说明或者那些自由市场的攒机发烧友们才会把软、硬件进行详细分类、标注和讨论.在核心操作系统软件部分,只有微软和与之有关的一切,于是,用户唯一注意并热衷讨论的是硬件的性能如何,并且几乎集中在核心处理器、内存和显卡的性能指标上.