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Klaus Schmeh 《Cryptologia》2013,37(1):14-45
Abstract “The Pathology of Cryptology” is the title of a chapter in David Kahn's book The Codebreakers. This chapter mainly deals with hidden messages, which amateur scientists claim to have discovered in the works of William Shakespeare and in other literary works. The present article picks up this subject and provides it with a theoretic framework under the name of “para-steganography.” Moreover, further case studies are added to those given by Kahn, including many examples that only became known after the publication of The Codebreakers. These considerations show that a hidden code can be found almost anywhere, provided that one looks for it in a suitable manner. 相似文献
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针对幼童自我控制能力和抵抗力较弱,易因踢被子引发感冒等疾病这一特定场景,通过将微型传感器植入蚕丝被特定部位中,以蓝牙通信方式广播传感器采集到的温度数据,手机APP读取到数据后,利用踢被温度变化逻辑判断模型进行分析,达到设定的逻辑判定条件后,在手机端发出声音和振动示警,开发出能够对踢被进行识别和示警的蚕丝被新产品。最后,根据检测评价指标与方法对试制产品进行了测试。结果显示:在报警时间阈值大于或等于7 min和踢掉全部被子条件下,报警成功率为100%;报警时间阈值偏差延时小于或等于3 min、正常睡眠过程中无误报警;对部分踢被等特殊情况也有一定辨识度。 相似文献
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《Architectural Design》2007,77(6):68-68
Gerard da Cunha maintains his practice from the old Portuguese colony of Goa, which he considers has a novel history in that it was the site of the ‘first sustained encounter between the East and the West’. This encounter has engendered a unique culture and architecture that is evident in da Cunha's lively and rather Gaudíesque work. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
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本文阐述了牛皮油拉伸效应革大生产中所出现的问题以及解决的办法。重点介绍了油拉伸效应革的选皮、复鞣、染色和整理工艺 相似文献
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新型农用保温被结构设计与保温性能研究 总被引:1,自引:0,他引:1
根据建筑保温原理设计新型保温被结构,采用NY/T 1831—2009温室覆盖材料保温性能测定方法测试保温性能,以北京温室基地使用各种保温被实测棚温的平均值做对比,讨论了新型保温材料结构设计的合理性和上述行业标准评价的可行性。结果表明新型保温被结构双面防水、芯材采用热熔絮棉,保温性能优于其他同等面密度的保温被和草帘子,且700 g/m2左右芯材的新型保温被能够在冬季最低温度-15℃以上地区使用。上述行业标准对保温材料保温性能评价存在一定缺陷,即对吸湿性材料户外使用中受雨雪影响的因素未有考虑。 相似文献
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三维植被网不仅可代替混凝土、沥青、浆砌石片和传统的塑料三维网垫等材料作为永久性的护坡层,而且在固土与固草功能上显示了较好的优越性,在广州大学城建设项目中的应用取得了一定的成效,有较好的应用前景。 相似文献