太阳能建筑的整合设计

人与自然环境的适应经过几千年的积累，已经形成了一种协同进化的依赖关系。人类通过光合作用的产物满足自身最基本的生存需要，通过感知天光来感知自然界的各种变化，季节、气候……满足自身的定位感、安全感、场所感的需要。     

Control of hydrocarbon accumulation by Lower Paleozoic cap rocks in the Tazhong Low Rise, Central Uplift, Tarim Basin, West China

Despite the absence of regional cap rocks in the Lower Paleozoic for the entire Tazhong Low Rise,several sets of effective local cap rocks are well preserved on the Northern Slope.Of these the best is the Ordovician mudstone of the Sangtamu Formation; the second is the Silurian Red Mudstone Member of the Tatairtag Formation and the marl of the Ordovician Lianglitag Formation; and the third is the gray mudstone of the Silurian Kepingtag Formation.The dense limestone of the Ordovician Yingshan Formation and the gypsum of the Middle Cambrian have shown initial sealing capacity.These effective cap rocks are closely related to the distribution of Lower Palaeozoic hydrocarbons in the Tazhong Low Rise.With well-preserved Sangtamu Formation mudstone and its location close to migration pathways,rich Lower Paleozoic hydrocarbon accumulation can be found on the Northem Slope.Vertically,most of the reserves are distributed below the Sangtamu Formation mudstone; areally,hydrocarbons are mainly found in the areas with well-developed Sangtamu Formation mudstone and Lianglitag Formation marl.Burial history and hydrocarbon charging history show that the evolution of Lower Palaeozoic cap rocks controlled the accumulation of hydrocarbon in the Tazhong Low Rise.Take the Red Mudstone Member of the Tatairtag Formation and Sangtamu Formation mudstone for examples：1） In the hydrocarbon charging time of the Late Caledonian-Early Hercynian,with top surfaces at burial depths of over 1,100 m,the cap rocks were able to seal oil and gas; 2） During the intense uplifting of the Devonian,the cap rocks with top surfaces at burial depths of 200-800 m and 500-1,100 m respectively were denuded in local areas,thus hydrocarbons trapped in earlier time were degraded to widespread bitumen; 3） In the hydrocarbon charging time of the Late Hercynian and Himalayan,the top surfaces of the cap rocks were at burial depths of over 2,000 m without intense uplifting and denudation thereafter,so trapped hydrocarbons were preserved.Based on cap rocks,the Ordovician Penglaiba Formation and Lower Cambrian dolomite could be potential targets for exploration on the Tazhong Northern Slope,and combined with hydrocarbon migration,less risk would be involved.     

人造板的甲醛释放和干燥器法测定甲醛释放量的理论与探讨

我国人造板生产企业众多且分布地域广泛,稍具规模的企业都有自己的质检部门和实验室,各地设置的专职人造板质检机构也为数不少。几个人造板产业大省(区)中,省、地、市甚至县级都有专职质检机构。我国每年实施的人造板质检工作量总和,可能大于其他所有人造板生产国的总和,由此得到的大量检测数据为科研工作提供了丰富的素材,且随着广大质检人员素质的提高和经验知识积累,对质检工作中存在问题的发现、分析和解决能力也在逐年加强。     

爆破振动对岩体积累损伤的影响

本文分析了岩体的积累损伤理论,利用声波波速在岩体中的变化来表示岩体的损伤。用RSM-SY5（N）型声波仪在内蒙古某铅锌矿工作面进行测量。通过对测量数据进行分析,总结爆破次数和岩体损伤量的关系：随着爆破次数的增加,岩体损伤量不断加大,且损伤量变化率也不断增大;随着围岩深度的增加,岩体的损伤量不断减小,在深度为1.6m处的岩体损伤值处于安全阀值范围内。     

如何防止镀液中积累杂质并净化镀液

0前言 杂质是镀液中无用且影响镀液性能和镀层质量的组分,是不可避免的有害物质。不少电镀故障是由于镀液中的杂质引起的,如果及时把进入镀液的杂质清理掉,镀液中的杂质就不会积累起来,杂质的含量也就不会达到危害镀液性能和镀层质量的程度。     

存在伪码多普勒条件下的XFAST性能分析

推导了存在伪码多普勒及重叠引起噪声恶化条件下的XFAST(extended replica folding acquisition search technique)算法的捕获和虚警概率公式,与高精度仿真的结果吻合误差小于0.5dB.研究成果为XFAST算法参数优化、性能评估提供了理论和方法基础.将扩展复制重叠段数设为1,即可适用于常规捕获算法的精确建模和分析.     

低对比度条件下基于能量积累和Gabor变换的海天线提取

为了解决基于边缘检测和Hough变换传统方法不能正确检测出低对比度条件下的海天线问题,提出了先采用多帧能量积累方法提高红外图像对比度,然后运用Gabor变换和Gabor多通道滤波器滤除图像干扰部分和凸显图像中的海天线部分,最后使用边缘检测和Hough变换实现海天线的提取.通过对实际海面低对比度条件下红外图像进行海天线提取实验,验证了所提方法的可行性和有效性.     

一种基于相参积累的检测前跟踪算法

现有的TBD方法基本思想通过对多帧数据作非相参积累改善检测性能来检测弱小目标,但是非相参积累存在固有的积累损失.文中提出了基于相参积累的TBD方法,将若干帧数据中可能航迹上的点作相参积累,有效利用了回波信号的相位信息,克服了非相参积累的固有积累损失.仿真结果表明该方法与非相参积累的TBD方法相比,在检测概率为0.9条件下信噪比有1.5 dB以上的改善.     

基于发热-散热积累模型的电动机过载保护研究

对异步电动机发热与散热机理进行分析,利用傅氏算法建立了电机热积累-散热的动态数学模型。仿真分析该模型,证明本模型可准确连续模拟电机温升动态变化情况,对避免电动机因定子绕组,转子绕组,定子铁心温度过高而造成损坏提供最优判据。通过与传统反时限保护进行对比,验证了本模型对负载变化引起的热积累反应更准确,敏锐。并在此基础上设计了以ARM芯片LPC2131为主控单元的智能保护器,经过长时间现场运行证明了本方案的可行性。     

集成灶的春天到来了吗？——集成灶 从认知到认同

经过了多年的市场积累和酝酿之后,2008年,由集成环保灶产品演变成的集成厨电产品的核心卖点终于被一些消费者所接受．市场规模的不断扩大和增长的幅度．吸引了众多的厂家。