水发食品中甲醛测定的方法比较

目的:对高效液相色谱法(High Performance Liquid Chromatography,HPLC)和紫外可见分光光度法(Ultraviolet Visible,UV)测定水发食品腐竹中的甲醛进行比较,寻找一种较准确、简单的测定水发产品中甲醛的方法.结论:两种测定方法测定结果无明显差别,液相色谱法和紫外法均...     

贝类食品中腹泻性贝类毒素检测能力验证结果分析

目的:通过参加国家食品安全风险评估中心组织的贝类食品中腹泻性贝类毒素检测的能力验证计划来确认及提高本实验室对腹泻性贝类毒素的检测能力.方法:依据《2020年国家食品污染和有害因素风险监测工作手册》中的腹泻性贝类毒素测定的标准操作程序,采用液相色谱-串联质谱法对收到的贝类盲样进行检测,外标法定量.结果:样品编号为02-F...     

变电站配电楼新型装配式基础承载性能试验

为改进现有变电站配电楼基础的性能,提出了一种新式的装配式基础方案,并进行了新型基础的足尺试验,研究其在偏心受压作用下的力学性能。试验结果表明,在设计荷载作用下,仅连接部位有少量钢筋屈服,在基础变阶处产生少量裂缝,倍设计荷载时,部分钢筋屈服并在靠近荷载中心变阶处出现竖向裂缝,此阶段整体未出现明显破损现象,从而体现出其良好的承载力特性;在设计荷载作用下,基础的沉降量满足设计要求,显示出较好的变形性能;在2倍设计荷载时,连接各个组合构件的后浇带未出现明显的破坏。基于本次试验可知,该装配式基础具有良好的承载能力、变形特性,以及具备不错整体性,能够满足基础设计研究。基础底部连接部位是整个装配式基础的薄弱部位,在实际工程设计中,应适当加强构造配筋。     

骨折推荐食补药食同源食物的归纳

近年来,人们越来越关注身体健康,日常饮食中也常将药食同源食物作为进补的重要来源.饮食干预对骨折患者预后康复非常重要,很多草本药物均来源于食物,可以药食同用.本文基于古方记载、文献研究,归纳、总结、推荐五味相适的胫骨骨折食补药食同源食物,可为临床患者食补康复提供参考依据.     

浅析地质工作中实验测试技术的重要性

地质实验测试在地质工作中有着极好的辅助推动作用,其技术更有非常高的要求.当今科技发展日新月异,地质领域实验测试技术也越来越先进,对实际的地质工作有着非常大的指导作用.在实际地质工作中,地质工作者通过合理进行地质实验测试,能够准确且高效的完成各项地质工作任务.本文首先分析了地质实验测试技术的应用,并探索地质工作中地质实验...     

Beyond the journey: the lasting impact of culinary tourism activities

In general, food tourism research has focused on tourist behaviour prior to or during trips, as well as food tourism development and marketing from a destination perspective. This exploratory study investigates food tourism from a broader context to determine if food tourism activities may impact attitudes and future behaviours. Data from a nine-country survey indicate that food activities likely impact trip satisfaction and influence intention to return and likelihood to recommend a destination. Food experiences are connected with memory, and these food experiences and souvenirs may influence destination image and lead to future purchases. Suggestions are provided for further research.     

Chinese international students’ psychological adaptation process in Korea: the role of tourism experience in the host country

This study aims to shed light on the effect of international students’ lifelong learning and dining experience during the trip in a host country on their psychological adaptation, place attachment, and sharing of tourism experience. Employing responses from 247 Chinese students in South Korea, a SEM (Structural Equation Modeling) technique was used for the analysis. The study found that lifelong learning positively influences dining-out flow experience, which in turn placed positive effects on psychological adaptation, place attachment, and sharing of tourism experience, whereas place attachment mediates the relationship between flow experience and both sharing of tourism experience and psychological adaptation.     

Customers’ perceptions in value and food safety on customer satisfaction and loyalty in restaurant environments: moderating roles of gender and restaurant types

Using a valid sample of 334 restaurant diners, this study investigated the relative effects of perceived value and food safety on customer satisfaction and customer loyalty. The proposed model was consistent with other cognitive–attitudinal–behavioral frameworks. This study also explored how these two perceptions on customer satisfaction were different based on gender and restaurant type. We found support for all of the hypothesized relationships. Results from the structural equation modeling showed that customer satisfaction mediated the relationships between two antecedents and customer loyalty. Implications of the findings, limitations of the study, and recommendations for future research were discussed.     

网络考试中题库设计与组卷技术研究与实现

在分析网络题库设计的一般性原则的基础上,重点考虑网络考试各环节的需要,对网络题库设计进行了详细论述。在保证抽题随机性、无重复性原则的基础上,设计了组卷流程和选题随机算法,并给出了详细的实现方案。     

谈食品检验的过程及精确度控制

新时期发展背景下,食品安全逐渐成为整个社会关注的重点问题,保证食品安全性与人们的生命健康安全有着非常密切的联系,同时,加强食品质量检测工作,也能为食品行业的长远发展奠定良好的基础。因此,一定要全面认识到食品检验工作的重要性,对食品检验过程与细节进行明确,同时加强对食品检验结果精确度的合理控制,针对检验过程中发现的质量不达标食品,一定要及时采取措施进行处理。本文主要针对食品检验过程与精确度控制进行了深入分析,并结合实际情况提出了一些有效的精确度控制策略,希望能为相关人员提供合理参考。