A practical optical fiber differential pressure sensor is presented at first. Then the techniques of light source feedback, set up of reference channel, proport
作为保障航天员的生命活动和工作能力的个人密闭装备,航天服可以防护真空、高低温、太阳辐射和微流星等环境因素对人体的危害.在航天员进行太空行走时,稍有一点裂口或者漏洞
In Europe,computation of displacement demand for seismic assessment of existing buildings is essentially based on a simplified formulation of the N2 method as p
大家都玩过吹泡泡吧,在太阳光的照射下,泡泡表面变得五颜六色,美丽极了.每次看到一连串泡泡随风飘起,很多小朋友都情不自禁地去追赶.今天,我们也来做一个泡泡实验,不仅能吹出
One of the main concs in using commercial software for finite element analyses of dam-foundation-reservoir systems is that the simplifying assumptions of the ma
维生素C是人体必需的营养素,广泛来源于各类新鲜蔬果.在生物体内,维生素C是一种抗氧化剂,保护身体免受自由基的威胁.如果缺乏维生素C,客易患上坏血病.因此,同学们平时应多吃
传统的单用户检测算法当系统中用户数及由其他用户信号形成的多址干扰较大时,其检测性能将大为恶化。而最佳多用户检测算法虽能有效的消除多址干扰,但它极高的计算杂度大大限制