无线电高度表微波集成前端

研制的4.3GHz无线电高度表微波集成前端已得到实际应用,它代替了整机原用的振荡-放大一倍频方案,提高了效率、减小了体积.微波集成前端采用了高线性度FET压控振荡器作发射源,采用高隔离度的单桥路不等负载三分贝混合环混频器.在-40°～70℃的环境温度范围内发射功率大于150mW,压控带宽123MHz,线性度小于3%,接收机噪声系数小予8dB.     

国外军用航空电子设备的发展趋势

本文根据国外的最新资料综合介绍各国(主要是美国)军用航空电子设备的发展近况和90年代的发展趋势,共分三部分:一、军用航空电子设备的地位和作用;二、发展特点;三、90年代的发展战略思想.在结束语中,作者提出了一些不成熟的看法.     

优化纳税服务渠道的国际经验及借鉴

纳税服务渠道综合了为纳税人服务的各项资源和具体措施,是税务机关提供纳税服务、提升管理效率的重要依托。本文介绍了国外纳税服务渠道建设的先进经验,分析了我国纳税服务渠道建设存在的问题,并提出了建设以纳税人为导向的整体纳税服务渠道策略的若干建议。     

Older people and convenience in meal preparation: a European study on understanding their perception towards vegetable soup preparation

A sample of 768 seniors over 65 years, living in eight European countries, was interviewed to investigate perceptions, preferences and attitudes towards convenience in preparation of vegetable soups. In each country, a range of seven vegetables soups varying in preparation levels required before consumption was identified. The first part of the interview (in‐depth interview) was carried out by using the Repertory Grid Method, an effective method to describe perceptions of foods using consumers' own language. Overall, vegetable‐related foods with convenience in preparation were perceived in similar ways across the countries. Older adults tended to describe ready vegetable soups mainly making associations related to preparation, rather than on their own preferences and evaluations. Conversely, fresh vegetables requiring all preparation or considerable preparation (cut fresh vegetables) were mainly associated with attributes such as taste, freshness, health benefits and familiarity with the product. The second session of the interview was based in part on the Theory of Planned Behaviour. A component measuring the extent to which it is felt necessary to eat convenience foods (perceived need) was assessed as well. Generally speaking, older people did not seem to view positively the consumption of convenience foods. Additionally, they did not feel the need to consume these products nor do they have the intention to consume them in the forthcoming month. Pleasure associated with performance of the behaviour was the most important determinant of intention to eat convenience foods in Germany, Denmark and Sweden. Perceived need was the most important factor in determining the intention to eat convenience foods in the UK, Poland and Portugal. Perceived control and subjective norms were the most important factors influencing the intention to eat convenience foods in Italy. The encouragement of consuming ‘ready‐meals’ might represent an opportunity to have healthier food choices and to reduce the risk a monotonous diet for older people who cannot or do not know how to cook, combined with a low interest in food‐related activities such as cooking.     

我国有关部委保护各自领域消费者的制度框架和执行体系

根据《中华人民共和国消费者权益保护法》,消费者和经营者发生消费者权益争议后,可以通过下列途径解决：①与经营者协商和解;②请求消费者协会调解;③向有关行政部门申诉;④根据与经营者达成的仲裁协议提请仲裁机构仲裁;⑤向人民法院提起诉讼。本文是中国人民银行西安分行《金融消费者权益保护》研究报告的一部分,总结了工信部、国家民用航空局、国家邮政局、国家质监总局等有关部委保护消费者的制度框架和投诉处理体系,这些做法和经验对金融领域的消费者保护具有一定的借鉴作用。     

现金流管理水平与金融危机应对能力的考量——合俊控股集团破产案例研究

2008年爆发的金融危机,引发国内一连串的民营企业倒闭事件,被视为金融危机对我国实体经济产生影响的标志.但是根据资料显示,此类倒闭企业的出口活动并未受到严重影响,进一步考察其倒闭原因发现,金融危机只是压死骆驼的"最后一根稻草",不健康的现金流管理模式拖垮了企业的现金链,致使现金流运转出现了易被金融危机冲击的薄弱环节才是隐藏在幕后的真正杀手.合俊集团倒闭的案例研究,为分析其现金流状况,探讨其现金流断流的原因,并找到应对现金流危机的对策提供了思路.