公路隧道衬砌裂损病害检测与治理对策

目的为治理公路隧道病害,针对病害检测结果提出了治理方案.方法采用地质雷达方法进行无损检测及弹塑性有限元方法对治理前、后衬砌结构受力状态进行分析.结果探明了该隧道衬砌厚度、衬砌混凝土强度、衬砌混凝土密实度、衬砌背后空洞分布和范围.对隧道结构衬砌裂损病害采取补强措施,即衬砌背后空洞的填充和衬砌本身的加强;对隧道漏水病害设置必要的防排水设施,从导排、防漏两方面入手,解决隧道漏水问题;数值分析表明治理后衬砌结构处于稳定状态.结论实际应用取得良好效果,治理方法可应用到相似病害隧道加固治理工程中.     

婴儿食品营养标签标示内容市场调查及分析

对扬州市几大超市进行随机抽样调查,了解婴儿食品的品牌、种类及销售情况,特别对不同厂家产品营养标签的标示情况作了分析、比较.结果表明,不同的厂家在婴儿食品营养标签的标示内客、方法及精确度等方面有很大的差异.营养标签标示的内容,既是生产厂家产品质量的标志,也是消费者在进行消费选择时的一个重要信息.在这方面,我们国内产品还有许多需要改进的地方.     

路面破损检测自动定位技术

定位技术是路面破损检测系统中的重要技术。本文利用卡尔曼滤波器处理GPS定位数据,提出了GPS与距离传感器结合实现破损图像精确定位的算法。该算法可为路面破损图像提供更为准确的定位信息。最后,试验验证了本算法的正确性。     

婴儿配方奶的研制

本文以模拟人奶的营养组成为主要目标，通过在牛奶中添加脱盐乳清粉、无水奶油、精制植物油等手段，调整配方产品中蛋白质、脂肪和乳糖的组成；并根据初生六个月内婴儿的生长发育需要，强化了Ｆｅ、Ｚｎ和维生素Ａ、Ｂ＿１、Ｃ、Ｄ、Ｅ等微量营养素；同时对所试制的配方产品进行了营养组成分析，感官评定和卫生检验，结果表明：配方奶的营养组成与人奶十分接近。其配方是科学的，营养是合理的，加工工艺是可行的。     

改进RetinaNet的水泥路面露骨病害检测

露骨病害是水泥路面常见的病害之一,会严重影响路面使用年限和行车安全性能.因此,及时对露骨病害进行检测与修复十分重要.针对传统的人工检测方法检测精度不高且检测效率低的问题,本文提出一种基于改进RetinaNet模型的水泥路面露骨病害检测方法.首先对人工和检测车采集露骨病害图像进行滤波、去噪等预处理操作,构建模型训练数据集...     

用于带阴影路面图像增强的处理方法

在路面图像的自动采集过程中,由于车架本身、树及山的影子等的影响,在采集到的道路路面图像中经常存在阴影,严重影响图像的自动识别和分类处理。针对这一问题,提出了一种消除路面图像阴影的方法。该方法是基于差分阈值建立图像背景,得到近似的光照背景模型,然后利用此光照背景模型消除路面图像的阴影,为图像的后续识别处理提供了良好的基础。通过对一带阴影的路面图像的处理过程的描述,分析了基于差分阈值消除路面图像阴影算法的合理性并验证了它的效果。但是,论文主要讨论的是车架等较规整的阴影消除,而对象树叶之类形成的分布范围广、形状不规整的阴影的处理还有待进一步完善。     

Closed-loop control of extracorporeal oxygen and carbon dioxide gas transfer

Additional extracorporeal gas transfer facilitates ultra-protective mechanical ventilation during treatment of severe lung disease. The proposed automation contributes to both patient safety and therapeutic success. A decentralized control system set the oxygen and carbon dioxide gas transfer rates. The controlled variables are estimated using standard measurement devices without direct blood contact. To reduce patient stress, an outer-loop integral controller adjusts the extracorporeal blood flow. The control system was first evaluated in silico and then in vivo using an animal model. Finally, the method is shown to be feasible and its response time is sufficient to meet patients' clinical needs.     

The dimensional nature of disturbed dreaming: Reply to Weiss (2007).

The authors' proposed model of nightmare formation (see record 2007-06095-006) withstands several criticisms raised in an accompanying commentary article (D. S. Weiss, 2007; see record 2007-06095-007). A principal criticism, that the model lacks convergent and divergent validity, appears to stem from the commenter's application of a strong categorical, as opposed to the authors' use of a dimensional, approach to the model/construct of nightmares. Furthermore, ongoing research continues to support the authors' assumptions about the basic relationship between nightmares and affect distress. Other criticisms of the model, including a failure to account for robust epidemiological differences in nightmares and an ambiguity in the concept of affect distress, are also countered by reference to relevant research findings. A robust gender difference in nightmares (women = men) is particularly compatible with studies demonstrating gender differences in emotion among the physiological and cognitive systems that the authors propose are centrally implicated in nightmare formation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Multisensory exploration and object individuation in infancy.

Recent research indicates that by 4.5 months, infants use shape and size information as the basis for individuating objects but that it is not until 11.5 months that they use color information for this purpose. The present experiments investigated the extent to which infants' sensitivity to color information could be increased through select experiences. Five experiments were conducted with 10.5- and 9.5-month-olds. The results revealed that multimodal (visual and tactile), but not unimodal (visual only), exploration of the objects prior to the individuation task increased 10.5-month-olds' sensitivity to color differences. These results suggest that multisensory experience with objects facilitates infants' use of color information when individuating objects. In contrast, 9.5-month-olds did not benefit from the multisensory procedure; possible explanations for this finding are explored. Together, these results reveal how an everyday experience--combined visual and tactile exploration of objects--can promote infants' use of color information as the basis for individuating objects. More broadly, these results shed light on the nature of infants' object representations and the cognitive mechanisms that support infants' changing sensitivity to color differences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Can the distress-signal and arousal-reduction views of crying be reconciled? Evidence from the cardiovascular system.

Theorists have staked out two ostensibly opposing views of human crying as either an arousing behavior that signals distress or a soothing behavior that reduces arousal after distress. The present study examined whether these views of crying might be reconciled by attending to physiological changes that unfold over crying episodes. Sixty female students watched neutral and cry-eliciting films while autonomic physiology, including respiratory sinus arrhythmia and pre-ejection period, was assessed. Crying participants exhibited heart rate increases that rapidly subsided after crying onset. Crying onset was also associated with increases in respiratory sinus arrhythmia and slowed breathing. All crying effects subsided by 4 minutes after onset. It is possible that crying is both an arousing distress signal and a means to restore psychological and physiological balance, depending on how and when this complex behavior is interrogated. (PsycINFO Database Record (c) 2010 APA, all rights reserved)