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<正> 蜂蜜是一种优良的天然食品,其营养价值,药用价值都是任何人工合成品难以代替的。我国是世界上蜂蜜出口大国,占世界蜂蜜市场交易量的2/5,有20几个国家进口我国蜂蜜,其中美国每年进口万吨以上,德国每年进口千吨以上。 近几年来某些地区滥用农药,使蜜源受到污染。影响了蜂蜜的品质。1994年我国湖北省出口到美国的蜂蜜,被美方检出 相似文献
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近年来我国蜂蜜出口屡屡遭遇发达国家设置的绿色壁垒。对此应该冷静客观审视：正当合理的绿色壁垒对我国蜂蜜出口有着积极的导向作用。从长期来看,这种导向作用必定会促使我国蜂蜜出口竞争力大大提升;但是短期内绿色壁垒对我国蜂蜜出口实际造成一定消极影响。为此,应该采取积极主动的生产与贸易对策。 相似文献
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蜂蜜具有抗菌、抗氧化、抗炎等多种生物活性,特别是在治疗感染性创伤以及烧伤烫伤、促进伤口愈合等方面具有良好疗效。深入分析了蜂蜜治疗皮肤创伤相关的细胞实验、动物实验、临床试验的研究结果;详细论述了蜂蜜的临床应用及蜂蜜抗菌、抗氧化、抗炎、预防伤口感染、促进自溶清创、刺激创面肉芽组织生长、加速创面愈合的作用机理。蜂蜜对创伤愈合的作用机理及其临床效果将为蜂蜜的进一步开发利用提供理论参考。 相似文献
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蜂蜜柚子茶是从韩国传人的养生饮品。柚子味酸、性寒，有行气、消食、除痰、解酒毒、镇痛等各种功能。韩国人将柚子配以蜂蜜。制成蜂蜜柚子茶．因其营养丰富、风味独特和具有良好的保健功效，近年来受到我国消费者的追捧。在超市里，一罐1公斤装的韩国蜂蜜柚子茶可卖近50元。而其原料易得，成本不高，制作工艺并不复杂， 相似文献
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根据2004~2010年统计数据,介绍了山东省蜂蜜出口状况,并对我国几个蜂蜜出口大省的蜂蜜出口量和出口单价进行了比较,指出山东省蜂蜜出口量的竞争力逐步增强,但不具备价格竞争优势。最后利用国际市场占有率和显示性比较优势指数对山东省蜂蜜出口竞争力进行了测算和分析,结果认为山东省蜂蜜出口具有显示性比较优势,很有希望进一步扩大国际市场。 相似文献
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蔬菜病虫害辅助诊断系统VPS是用VB6．0编写的基于图像及文本的农业专家系统。其知识库主要由侵染性病害、生理性病害、虫害3个数据库组成。包括用户管理、病虫害查询、病虫害辅助诊断、诊断数据库维护、数据库备份与恢复等7个模块。提供了分级管理、病虫害名称及拉丁文学名查询、病虫害图像诊断、数据库修改等功能。这一系统可对蔬菜生产过程中的病虫害识别与防治起到辅助作用。 相似文献
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An Image-Based Diagnostic Expert System for Corn Diseases 总被引：1，自引：0，他引：1
The annual worldwide yield losses due to pests are estimated to be billions of dollars. Integrated pest management （IPM） is one of the most important components of crop production in most agricultural areas of the world, and the effectiveness of crop protection depends on accurate and timely diagnosis of phytosanitary problems. Accurately identifying and treatment depends on the method which used in disease and insect pests diagnosis. Identifying plant diseases is usually difficult and requires a plant pathologist or well-trained technician to accurately describe the case. Moreover, quite a few diseases have similar symptoms making it difficult for non-experts to distinguish disease correctly. Another method of diagnosis depends on comparison of the concerned case with similar ones through one image or more of the symptoms and helps enormously in overcoming difficulties of non-experts. The old adage ＇a picture is worth a thousand words＇ is crucially relevant. Considering the user＇s capability to deal and interact with the expert system easily and clearly, a webbased diagnostic expert-system shell based on production rules （i.e., IF 〈 effects 〉 THEN 〈 causes 〉） and frames with a color image database was developed and applied to corn disease diagnosis as a case study. The expert-system shell was made on a 32-bit multimedia desktop microcomputer. The knowledge base had frames, production rules and synonym words as the result of interview and arrangement. It was desired that 80% of total frames used visual color image data to explain the meaning of observations and conclusions. Visual color image displays with the phrases of questions and answers from the expert system, enables users to identify any disease, makes the right decision, and chooses the right treatment. This may increase their level of understanding of corn disease diagnosis. The expert system can be applied to diagnosis of other plant pests or diseases by easy changes to the knowledge base. 相似文献
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Although neurodegenerative diseases such as Alzheimer's disease are not classically considered mediated by inflammation or the immune system, in some instances the immune system may play an important role in the degenerative process. Furthermore, it has become clear that the immune system itself may have beneficial effects in nervous system diseases considered neurodegenerative. Immunotherapeutic approaches designed to induce a humoral immune response have recently been developed for the treatment of Alzheimer's disease. These studies have led to human trials that resulted in both beneficial and adverse effects. In animal models, it has also been shown that immunotherapy designed to induce a cellular immune response may be of benefit in central nervous system injury, although T cells may have either a beneficial or detrimental effect depending on the type of T cell response induced. These areas provide a new avenue for exploring immune system-based therapy of neurodegenerative diseases and will be discussed here with a primary focus on Alzheimer's disease. We will also discuss how these approaches affect microglia activation, which plays a key role in therapy of such diseases. 相似文献
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模糊聚类在砀山酥梨黑星病预测专家系统中的应用 总被引：7，自引：1，他引：7
对黑星病的及时、有效预报和防治是保证砀山酥梨正常生长发育,获取高产的重要因素。植物病害的发生发展是一个受众多因素影响的动态系统,其规律复杂多变且经验性强,要想建立因果模型或抽取成传统专家系统中的规则形式表示,在大多数情况下不现实,也不符实,但要举出具体“实例”则要现实、方便的多。同时病虫害预测和防治具有很大程度的模糊性。为此,本文将模糊聚类技术与CBR技术相结合,研制开发了砀山酥梨黑星病预测专家系统。该系统不仅具有模糊推理的性能,而且克服了传统统计建模的缺陷性。 相似文献