多声道耳机真的好吗？——品鉴三款5.1声道耳机

相信大家对5．1声道音箱都比较熟悉,但对耳机产品也许较为陌生。那么市面上的5．1声道耳机能否呈现真实的5．1声道音效呢？与音箱相比,5．1声道耳机的表现到底如何？本文将给大家做详细介绍。     

EFFECTS OF DIETARY GLYCINE BETAINE ON BLOOD CHARACTERISTICS AND PORK QUALITY

This study was conducted to determine the effects of dietary glycine betaine on pork quality and blood characteristics. A total of 80 female pigs (Landrace  ×  Yorkshire  ×  Duroc) were randomly allotted into one of four experimental diet groups. Each group of pigs fed with a commercial diet (control) added with 0.2 g glycine betaine (T1), 0.4 g glycine betaine (T2) and 0.6 g glycine betaine (T3)/kg diet during 40 days. Glycine betaine concentrations in plasma and loin muscle were significantly increased by dietary glycine betaine; however, triglyceride concentration in serum was decreased by dietary glycine betaine. Creatine phosphokinase concentrations in plasma had no significant difference among the dietary groups. Redness ( a* ) was significantly higher in T2 and T3; however, at the first and seventh days of storage, redness ( a* ) was not significantly different between dietary groups. Shear force was significantly higher in dietary glycine betaine groups at the first day of storage. Cholesterol content was significantly lower in T2 and T3, whereas T1 was not significantly different compared with the control group. In fatty acid composition, the ratio of saturated fatty acids was increased, whereas unsaturated fatty acids were decreased by dietary glycine betaine.

PRACTICAL APPLICATIONS

Glycine betaine is an amino acid (trimethylglycine) present in most organisms, and is an obligatory intermediate in the catabolism of choline. Glycine betaine has been reported to affect some aspects of pork qualities. As a result of this study, dietary glycine betaine should improve meat redness and reduce cholesterol. However, dietary glycine betaine did not influence creatine phosphokinase levels in plasma. These results will be helpful to the pork industry and meat scientists for improving meat qaulity.     

现代“荣御”HY-2008（韩国版）音箱赏析

它携“荣誉”的谐音而来，透过奖杯造型与火焰图案诠释着时尚，当我们抢先拿到现代“荣御”HY-2008（韩国版）音箱时，不禁眼前一亮。     

摩机基础知识讲坛（上）

摩机爱好者可能都有过花费大量时间和精力,却得不到满意效果的经历。究其原因,是由于对整个音箱系统缺乏一个正确整体评判和认知所导致。故此《微型计算机》特邀三诺集团电声总监张谦先生,以自己多年的设计经验和对音响系统的认识,与广大摩机爱好者共同探讨摩机必须了解的基础知识。     

组合音响新形态漫步者M360深度体验

在数字娱乐时代，我们一直都在寻找一款可兼容当前所有数字音源，并且可脱离PC单独工作的播放设备。漫步者M360的出现，给了我们极大的惊喜。在第一时间获得这款设计新颖、功能强大的产品后，我们随即展开了深入体验。     

新兴Hi-Fi，音乐生活 QUIET天马座功放＋天权音箱

不要把QUIET的功放和音箱简单地看作高端PC多媒体产品,也不要将其单纯地当作传统Hi—Fi领域的产物。这一国内消费者还很陌生的品牌,隶属于已有25年历史的意大利AUDIO4＆C公司,而QUIET本身,也拥有长达18年的历史。QUIET在欧洲是纯粹的传统Hi—Fi音箱品牌,与之相配的功放品牌名为Aeron。进入中国后的QUIET,所代表的则是QUIET音箱与Aeron功放搭配的完整系统。为让大家了解这套系统,《微型计算机》抢先获得了它们的产品,并展开了测试。     

小巧·靓声——15款笔记本电脑音箱“音乐会”

2009年是笔记本电脑音箱呈现井喷式发展的一年,不仅有更多音箱厂商涉足其中,而且新品数量相比往年也有大幅增长。一时间笔记本电脑音箱风生水起,但同时也让消费者眼花缭乱,难以抉择。故此,《微型计算机》特别策划了一次笔记本电脑吝箱天型专题,尽力通过对应用需求和产品形态的分析,以及对当前市场中多款典型产品的体验评价,为大家拨开眼前的迷雾。     

新兴Hi-Fi“唱”天籁 深入体验傲森MM-1 小型桌面音响系统

花费3000元到PC音频系统上并不是人人可为：想在PC上小小地“发烧”一下的朋友,先攥紧手中的钞票,别急着“下单”,本文对傲森MM-1的细致解析,也许会成为你挑选时有益的参考。     

最配iPhone一体机麦博MD331

iPhone和iPod touch 的先后推出，再一次掀起了“苹果”的时尚热潮。耳塞，是“苹果”播放器用户在户外享受音乐的主要途径，而在室内，一款优秀的iPod音箱无疑是用户体验的最佳选择。