Preliminary results of FeO mapping using Imaging Interferometer data from Chang��E-1

Information about the variability, and spatial distribution of iron abundance is important to understand lunar geological history and for future resource utilization. In this paper we present a preliminary model to produce an iron abundance map using images taken by an Imaging Interferometer on board the satellite Chang??E-1. Compared with the Clementine UVVIS images, the images from the Chang??E-1 satellite also allowed for the extraction of FeO abundance distributions on the Moon. However, the preliminary model results suggest an underestimation of ??2 wt.% for the FeO content of the mare region and an overestimation of ??3 wt.% for the highland region.     

A palynological and palaeoclimatological record from the southern Philippines since the Last Glacial Maximum

A palynological analysis of a marine sediment core in the southern Philippines,provides a detailed regional vegetation and climate history for the West Pacific Warm Pool(WPWP)since the Last Glacial Maximum(LGM).Chronology was determined by a detailed oxygen isotope record.A higher representation of pollen from tropical upper montane rainforest during the LGM indicate that this forest type moved down along elevation,probabaly due to the lowered temperature.During the last deglaciation and the early Holocene,mangroves were more expanded and tropical mid and upper montane rainforests were restricted,suggesting a rising sea-level and temperature increase.Herbaceous pollen and pteridophyte spore records indicate a much drier condition during the LGM than the Holocene.Mangrove development is controlled by conditions at the river mouth influenced by river discharge.Pteridophyte spores are abundant in wet conditions and are mainly transported by rivers.During the mid-Holocene,the reduction in mangrove pollen and pteridophyte spore appears to be a result of climate change:mainly decrease in river discharge.This may have been affected by the decreasing intensity of the Southeast Asian Monsoon,and the increasing frequency and intensity of warm ENSO events,El Ni?o,in this region.     

太阳能晶硅片废砂浆回收中固液分离工艺参数研究

固液分离作为废砂浆回收的第一道工序,对整个晶硅片废砂浆回收有极大影响。本文从固液分离工艺中各个步骤出发,根据废砂浆中碳化硅型号的不同,分别优化造浆浓度、卧螺离心机操作参数及刮刀滤布型号参数;同时将卧螺排水进行二次分离,使得废砂浆综合回收率提高到90%以上。     

苹果和白梨的属间杂交研究

用杂交种胚离体培养的方法可获得大量的苹果和白梨的属间杂交幼苗。对其进行根尖染色体检查和叶、茎的过氧化物酶同工酶带分析。证实杂交种胚苗是二倍体（２ｎ＝３４），并具有其双亲的基本酶带。     

山西天蛾昆虫及区系分析

文章纪录了山西省天蛾科昆虫共５４种和亚种，分隶于２６个属，其中有省内新纪录３种。区系分析表明，山西省天蛾科昆虫在世界动物地理区系中可分为９个分布类型，其中以古北、东洋两界共有种类居多，占到４０．３８％，其次是古北界种类，占３６．５４％；在中国动物地理区系中可分为２０个类型，并集中分布于东北、华北、蒙新复合区内，计９种，占１７．３１％。文末对山西省境内的天蛾科昆虫的区划进行了详细的讨论     

用低温等离子体技术降解三氟溴甲烷（哈隆1301）

利用低温等离子体技术对三氟溴甲烷ＣＦ３Ｂｒ进行了降解。在放电３ｍｉｎ后，ＣＦ３Ｂｒ的降解率可达５５％，而在ＣＦ３Ｂｒ－Ｏ２体系中，ＣＦ３Ｂｒ的降解率可达６８％。研究了低压ＣＦ３Ｂｒ的气相反应机理，以及ＣＦ３Ｂｒ初妈压力，外加气体对降解ＣＦ３Ｂｒ的影响。     

带钢管混凝土端柱的装配式双面叠合剪力墙抗震性能研究

带钢管混凝土端柱的装配式双面叠合剪力墙(简称PDSWEC墙)是一种新型装配式结构抗侧力构件,具有预制构件自重轻、可全装配化施工等优点.为研究PDSWEC墙的抗震性能,通过对照试验现象,标定数值模拟参数,并基于有限元数值模拟的结果,根据2组共6个试件的滞回曲线,研究了PDSWEC墙的抗震性能参数;分析了不同轴压比、不同端...     

Involvement of Na<Superscript>+</Superscript>, K<Superscript>+</Superscript>-ATPase and its inhibitors in HuR-mediated cytokine mRNA stabilization in lung epithelial cells

Increasing evidence demonstrates that Na⁺, K⁺-ATPase plays an important role in pulmonary inflammation, but the mechanism remains largely unknown. In this study, we used cardiotonic steroids as Na⁺, K⁺-ATPase inhibitors to explore the possible involvement of Na⁺, K⁺-ATPase in pulmonary epithelial inflammation. The results demonstrated that mice after ouabain inhalation developed cyclooxygenase-2-dependent acute lung inflammation. The in vitro experiments further confirmed that Na⁺, K⁺-ATPase inhibitors significantly stimulated cyclooxygenase-2 expression in lung epithelial cells of human or murine origin, the process of which was participated by multiple cis-elements and trans-acting factors. Most importantly, we first described here that Na⁺, K⁺-ATPase inhibitors could evoke a significant Hu antigen R nuclear export in lung epithelial cells, which stabilized cyclooxygenase-2 mRNA by binding with a proximal AU-rich element within its 3′-untranslated region. In conclusion, HuR-mediated mRNA stabilization opens new avenues in understanding the importance of Na⁺, K⁺-ATPase, as well as its inhibitors in inflammation.     

基于残差网络的高温合金微观组织图像分割方法

材料微观组织图像分析是材料研究的重要环节,其分析方法的精准性和快速性对新材料的设计、研制和现有材料的优化、寿命评价都非常重要。因此,如何建立更快速更精准的微观组织分割方法成为微观组织图像分析和性能评价的关键。针对传统的微观组织图像分割技术对于高温合金材料分析精度不高等问题,通过对卷积神经网络结构进行优化,提出了一种基于Res_Unet网络的微观组织图像分割方法。实验验证结果表明,本文的方法不仅解决了深度学习在材料组织图像小样本数据上的实现问题,还显著提高了材料微观组织图像的分割精度。     

基于强化学习的视频车辆跟踪

基于视频的车辆跟踪在交通监控领域有着重要的实用价值,强化学习是一种无监督的学习方法,具有搜索效率高的特性,将强化学习理论应用于视频车辆的跟踪,充分发挥了其搜索效率高的特性,实验结果表明基于强化学习的视频车辆跟踪,其跟踪情况稳定,跟踪准确率比较高,可以获得很好的跟踪效果。