The Council for Agricultural Science and Technology

The Council for Agricultural Science and Technology has made considerable progress in the past year in all of its focus areas that affect visibility and financial well-being as we strive to achieve our mission. “Building Our Brand” is at the core of every activity, including our product (publications), our member involvement (stakeholder contacts and reports), and our distribution and sales (expanding our reach and affecting the key audiences listed in our mission statement). “Ahead of the Need” information is what the Poultry Science Association can provide us. We are increasing the number of commentary papers that we will produce annually, and we have improved our reach to state and federal congressional contacts and media personnel. We appreciate the support and suggestions of the Poultry Science Association and look forward to continued success in communicating science to society.     

基于信用提升来解决食品安全问题的探讨

基于食品安全频发的现状,深入分析食品安全问题产生的原因,主要是一线人员意识薄弱漠视生命安全、食品生产经营者过度追逐利益、行政监督监管缺位滞后和缺乏诚信公心的社会文化4个方面的原因,并针对这4个方面,从改善信用状况角度,提出了相应的对策建议。     

基于工程教育专业认证的毕业设计教学改革初探——以四川轻化工大学食品质量与安全专业本科生毕业设计为例

基于工程教育专业认证的要求,对四川轻化工大学食品质量与安全专业在近年毕业设计发现的问题及不足进行探讨,结合笔者的经验,对几个方面提出了针对性强、可行性高的改革措施,对该专业在工程教育专业认证的要求下,建立适合学校特点的培养措施提供帮助。     

Reflections on the system of evaluation of gene-edited livestock

The rapid development of biotechnology has provided a greater understanding of the biological functions of major candidate genes that have important functions regarding economic traits, and new materials for livestock breeding have been obtained through gene editing (GE) and embryo manipulation with the purpose of improving quality and output and reducing the costs and risk of disease. Public concerns, particularly over safety risks and production performance, must be addressed. Evaluation is the most important component of the regulation of gene-edited livestock and is a crucial guarantee of public safety before the marketing of gene-edited animal products. Here, the system of evaluation of gene-edited livestock is discussed in terms of public safety and production performance. The search for safe and ethical applications in the GE of livestock, a case-by-case evaluation strategy, and classification and simplification are used in order to promote a more efficient, objective, comprehensive and operable evaluation system.     

晋中市农药使用现状、存在问题及对策建议

本文分析了晋中市农药使用现状及存在问题,并对科学合理使用农药提出了建议。     

关于农业现代化需要推进农产品质量安全化的思考 ——以六安市金安区为例

农产品质量安全，是一项复杂的农业系统工程，贯穿现代农业发展的始终，体现天时、地利、 人和。文章从加强农产品质量安全的迫切性、问题导向性，提出探索路径，以期为金安区现代农业发 展和人民生命健康安全提出对策建议。     

高校安全文化建设的探究与实践——以河北农业大学为例

安全与文化联姻,有助于提高人们安全的文化品位,使人们在潜移默化中接受安全的理念、规则.安全文化是社会进步的表现,是安全工作的发展方向.高校安全文化作为全社会安全文化重要组成部分不容忽视,在分析高校安全文化的内涵、特征的基础上,强调了高校安全文化建设的必要性,并以河北农业大学为例阐述了高等学校的安全文化建设.     

Detection of contaminated hazelnuts and ground red chili pepper flakes by multispectral imaging

Mycotoxins are the toxic metabolites of certain filamentous fungi and have been demonstrated to cause various health problems in humans, including immunosuppression and cancer. Among them, the aflatoxins have received greater attention because they are potent carcinogens and are responsible for many human deaths per annum, mostly in non-industrialized countries. Various regulatory agencies have enforced limits on the concentrations of these toxins in foods and feeds involved in international commerce. Hyperspectral and multispectral imaging are becoming increasingly important for rapid and nondestructive testing for the presence of such contaminants. However, the high number of spectral bands needed may render such image acquisition systems too complex, expensive and slow. Moreover, they tend to generate overwhelming amount of data, making effective processing of this information in real time difficult. In this study, a two-dimensional local discriminant bases algorithm was developed to detect the location of the discriminative features in the multispectral data space. The algorithm identifies the optimal passband width and center frequencies of optical filters to be used for a multispectral imaging system. This was applied to a multispectral imaging system used to detect aflatoxin-contaminated hazelnut kernels and red chili peppers. Classification accuracies of 92.3% and 80% were achieved for aflatoxin-contaminated and uncontaminated hazelnuts and red chili peppers, respectively. The aflatoxin concentrations were decreased from 608 to 0.84 ppb for tested hazelnuts and from 38.26 to 22.85 ppb for red chili peppers by removal of the nuts/peppers that were classified as aflatoxin-contaminated. The algorithm was also used to classify fungal contaminated and uncontaminated hazelnut kernels, and an accuracy of 95.6% was achieved for this broader classification.     

引水隧洞掘进爆破对地面工程振动影响与监测

针对九龙江北引二期改造工程引水隧洞开挖爆破施工中爆破振动进行监测,研究爆破地震波给洞口地面工程带来的振动安全影响。通过对振动监测数据的回归分析,得到了隧洞爆破振动传播衰减规律。同时,根据振动监测成果,结合隧洞爆破开挖施工特点,确定了进水口区域地面工程的施工程序,使各重要部位的爆破振动控制在了安全范围以内。在此基础上,对洞口边坡上的实测爆破振动信号进行频谱分析,研究了边坡上爆破振动信号的能量分布特性,并分析了地形地质条件对爆破地震波传播的影响特点。