钙在果树生理代谢中的作用(综述)

综述了钙在果树生理代谢中的作用,主要包括钙在维持细胞壁的结构、稳定细胞膜的功能,作为第二信使对酶的调控,钙与逆境胁迫以及钙对激素的作用等。     

陇东黄土高原气候对全球变暖的响应及其对林果的影响

根据陇东黄土高原6县区40年气候资料,分析光、温、水等主要气象要素的变化,结果表明:陇东黄土高原气候变化趋势与全国和全球相似,气温升高、降水趋少,向暖干化方向发展。通过气候变化对主要林果影响的分析,该区域适宜苹果、杏、枣的栽培,而桃、梨将由适宜栽培向次适宜栽培演化。因此,宜大力发展苹果、杏、枣栽培,调整桃、梨栽培面积。冬季气温增高可能导致果树病虫害加重,应引起高度重视。     

半敞开式大空间建筑空调温度场的数值模拟

用数值模拟方法讨论了半敞开大空间建筑内空调温度场的分布特征．指出了环境气象参数、半敞开式建筑空间特点及空调送风方式与参数等是影响半敞开式空间建筑内空调温度场分布特征的重要因素．重点模拟了在环境空气穿透建筑空间或静风条件场合,采用地下送风方式时,半敞开式空间建筑空调温度场与环境空气之间的相互关系．     

水果分级支撑技术的研究进展

综述了国内外水果分级支撑技术的研究现状,主要介绍了多光谱、核磁共振、激光诱发荧光谱技术、近红外、X射线、热成像、近红外和中红外双重照相机及超声波等技术在水果品质检测中的应用,并对水果分级技术进行了展望.     

野生南酸枣汁的研制及生产

采用酶解工艺成功地研制出酸枣汁及新型野果饮料并投入生产。     

钙离子对果蝇生育力和寿命的影响

以果蝇为试验材料,探讨了钙离子对果蝇生育力和寿命的影响,结果发现含钙化合物加入到培养基后,果蝇后代的生育力和寿命均随着钙离子浓度的升高而降低。     

凝固型果肉酸奶的研制及工艺设备选型设计

对添加果肉及异麦芽低聚经乳酸菌发酵制成的酸奶配方，生产工艺及设备选型进行了研究。结果表明，采用适当的配方和生产工艺研制生产的酸奶价值高，口感良好，是优质的乳酸菌饮料。     

班级管理中座位编排的常见问题及改善策略

班级管理中科学编排学生座位,有利于加强教学管理,优化学生素质。座位编排中的常见问题有空间分布上的男女分开、同质同桌、按等排位和唯身高论,以及时间维度上的稳定式和多变式。要科学地编排座位,如下一些策略可资利用:班级层面的学生整体流动策略、小团体层面的瓦解不良团体策略、同桌层面的有利同桌帮带策略。     

Finding the host tree species of Notiobia nebrioides Perty (Coleoptera,Carabidae), a member of the seed-feeding guild at fruit falls in Amazonian non-inundated lowland rainforest

Feeding on very small seeds at tree fruit falls is a recently discovered adaptation of ground beetles living in tropical lowland rainforests. A seed-feeding guild of eight species of the genus Notiobia is known from fig fruit falls at a terra firme rainforest near Manaus (Central Amazonia). Only two of these species also reproduce at fig fruit falls. The remaining six species use fig fruit falls as 'stepping-stones' when migrating between the more seasonally restricted fruit falls of their host tree species. Four species are known to feed and reproduce at fruit falls of the Melastomataceae genera Bellucia, Loreya and Miconia. One of the remaining species, N. disparilis is only known from four specimens and the host tree species where it reproduces is still unknown. The sixth species, N. nebrioides, appears in comparatively high numbers at both fig and Melastomataceae fruit falls but does not reproduce there. In this study we looked for its host tree species and found it to be the most abundant carabid beetle at fruit falls of Coussapoa asperifolia (Cecropiaceae) and Vismia guianensis (Clusiaceae) and to reproduce there. Recently, Arndt and Kirmse (in press) found N. nebrioides reproducing at fruit falls of Goupia glabra (Celestraceae) in south Venezuela. So N. nebrioides seems to be the most pronounced generalist among the seed-feeding ground beetles in Amazonian non-inundated lowland rainforests, reproducing at fruit falls of trees belonging to three different families.     

音乐厅容积与容座的相关性分析

采用皮尔森积矩相关性原理和线性回归方法,对Beranek提供的22个国家69个音乐厅和歌剧院(其中包括世界上最著名的音乐厅和歌剧院)的容积与容座的相关性进行了分析,得出这两个参数具有正相关的结论,相关系数为0.816;并推导出了容积与容座的实用公式.