基于FPGA的水果边缘检测方法研究

为提高水果品质检测精度,提出了一种以FPGA为核心的水果边缘检测方案。系统以苹果为研究对象,分别对Soble算法,Laplace算法和LOG算法三种边缘检测方法进行研究,实现了对苹果边缘的提取,并分析了三种检测方法对水果边缘检测的效果。实验结果表明,以FPGA为核心的检测系统,具有处理速度快,开发周期短等优点,在水果品质检测方面具有较高的实用价值。     

深州蜜桃F1代初果期果实性状的变化

为了解果实性状的形成规律及性状间的相关规律,以深州蜜桃实生后代为材料,从第一次结果开始,逐年记载各单株的开花期、成熟期、单果重、甜酸味、可溶性固形物含量、香味、苦味、果汁、着色度、果形和果顶形状,并在年度间进行趋势分析、相关分析和通径分析。结果表明：随实生树结果年龄的增加,果实生育期相对稳定,果实的内部品质有提高的趋势,外观品质受当年树体条件和环境条件的影响较大,多数果实性状在年民间表现了不同的相关和决定程度。     

四川大头茶低温半致死温度与对低温的适应性

利用电导法，测定了四川大头茶叶片的低温半致死温度，并与其生境中之温度变化相比较，结果表明，四川大头茶对生长地低温具有一定的适应性．     

中华蜜蜂工蜂下唇腺的电镜观察

本文通过扫描电镜和透射电镜对中华蜜蜂(Apis Cerana Fab.)成年工峰下唇腺细胞的超微结构进行了观察,根据细胞的形态特征的变化证明下唇腺正处于有分泌活性的阶段,此外还观察到输送分泌物的途径。     

攀西圣心芒果成熟期确定初探

本文以圣心芒果果实为实验材料，在不同异地条件下不同时间段分别采样，以果实生长日数、果皮色泽、果乳状况、果实比重以及可容性固形物5项指标综合确定果实成熟度，结果表明，于8月中旬采样的圣心芒果果实综合指标最佳，果实外观着色相对好，果实失水少，可溶性固形物含量达到最大值，采样时果实流胶少或无，沉入水底部的果实相对多。     

Naupactus xanthographus (Germar) species group (Curculionidae: Entiminae: Naupactini): a comprehensive taxonomic treatment

We undertake a taxonomic revision of Naupactus xanthographus (Germar 1824) (grape-fruit weevil) and the putative related species N. navicularis Boheman 1840, N. dissimilis Hustache 1947, N. mimicus Hustache 1938, N. dissimulator Boheman 1840 and N. marvaldiae new species. This species group mainly differs from other Naupactus by the presence of a pair of tubercles at the apex of the elytra. It ranges in Argentina, southern Brazil, Bolivia, Paraguay and Uruguay, in areas that belong to the biogeographic provinces of Atlantic, Araucaria and Paraná forests, Yungas, Chaco and Pampa. Naupactus xanthographus is broadly distributed in Argentina, mainly in the Pampean province, and it was introduced in central Chile, where it is considered a serious pest of grapes and several fruit trees. The remaining species are partially sympatric in the subtropical forests of southern Brazil, and N. dissimulator ranges along the gallery forests of Paraná and Uruguay rivers, down to La Plata River. It has been reported damaging citrus and ‘yerba mate’, like N. navicularis and N. dissimilis. The new species N. marvaldiae ranges in southern Brazil and north-eastern Argentina (Misiones), and differs from N. dissimulator, mainly by the very short elytra, the apical tubercles welldeveloped in males and females, the broader front femora, and the different shape of the apex of the penis. The other four species are probably more closely related and they separate from the pair N. dissimulator–N. marvaldiae because of the slightly widened front femora, well-developed corbels of the hind tibiae, and short to indistinct nodulus of the spermatheca.

http://zoobank.org/urn:lsid:zoobank.org:pub:051587DD-37C2-4216-AA61-0E563BB44D64     

论《桃花扇》中崇祯帝的形象及其文本意义

在《桃花扇》中,崇祯帝作为一位“不在场的角色”始终贯穿于整个故事情节发展中。分析剧本中与崇祯帝有关的十二出故事情节,并结合明末清初史料,可以发现剧本中崇祯帝勤政治国却又治理不善、悲惨无力的形象特点。崇祯帝的死亡是文本中兴亡悲剧、侯李爱情悲剧的最初原点。孔尚任以剧中人物的视角刻绘崇祯帝的形象,让其参与进文本的故事结构中,成为文本情节的推动者、兴亡之感的催化剂、文化失落的标志,具有重要的文本意义。     

苹果梨花芽分化期内源激素在芽和叶中分布

在苹果梨花芽分化期,从花芽、叶芽、短果枝叶、营养枝叶四种器官中都可检测到Ｚ（玉米素）、ＺＲ（玉米素核苷）、ＩＡＡ（吲哚乙酸）、ＧＡ３ （赤霉素）、ＡＢＡ（脱落酸）．结果表明,花芽分化期间需要有高水平的Ｚ、ＺＲ,低水平的ＩＡＡ,高水平的ＣＴＫ／ＧＡ３ 、ＣＴＫ／ＩＡＡ、ＣＴＫ／ＡＢＡ 比值     

Enzyme polymorphism in the Sicilian honeybee

Summary In Sicily we can identify two genetically differentiated groups of local honeybee populations, on the basis of the only two polymorphic loci,Mdh-1 andEst; the western one, whose genetic characteristics are probably those of the native honeybee (Apis mellifera sicula) and the eastern one affected by recent large-scale importation of Italian bees from northern Italy.This research was supported by a grant of the Ministero della Pubblica Istruzione.     

Spectrophotometric Analysis of Oxalic Acid

利用三氯化钛与草酸溶液显色反应的基础上，经过一系列实验研究，建立了一种用分光光度计法测定草酸的简便方法，并研究了这种方法用于果蔬汁中草酸测定的可行性。