权威发布

小企业玩具产品质量国家监督抽查结果部分质量较差的产品及其企业序号企业名称产品名称商标规格生产日期1福州益荣电子科技有限公司中文枪玩具DONGFA TOYSDF3218B / 2石狮新奇特玩具有限公司婴幼儿玩具XINQITE货号XQ20636 2005-12 3青岛祥麟工艺品有限公司小熊毛绒玩具/ / 2005-12 4上海优宝实业发展有限公司小精灵娃娃玩具/ / 2005-12主要不合格项目模塑玩具边缘,活动部件间的间隙、玩具可预见合理滥用测试中的边缘及活动部件间的间隙,电池安全使用说明,标志和使用说明项目的安全警示及字体尺寸。塑料带薄膜厚度,玩具可预见合理滥用测试中的小零件及边缘。可预见的合理滥用测试中的小零件,标志和使用说明。模塑玩具边缘,标志和使用说明项目。     

磁石玩具测量方法研究

针对欧美玩具新标准中磁石测量问题,提出通过玩具特征确定磁通系数的测量方法,针对不同玩具标准建立不同测试流程,解决不同玩具标准中磁石玩具测试的差异问题.对磁石玩具磁通系数测试中测试仪器,磁通密度测量、磁石极面积测量、测试结果的分析进行了详细论述,重点介绍了测试结果的不确定计算方法.并以圆形磁石玩具为例分析了测量中不确定来源,建立了不确定计算的数学模型以及不确定度结果的计算分析.指出该测量方法的应用解决了磁石玩具测量中的关键问题,提高了测试结果精度和测试效率.     

声响玩具噪声测量方法研究

针对玩具噪声测试步骤繁杂,测试效率低等问题,提出采用针对不同类型玩具确定不同麦克风测试位置的测试方法,对玩具噪声测试中测试环境,每一类玩具的测试安装、测试条件、测试方法、测试点位置的确定、测试结果的分析进行了详细论述,并重点介绍了测试结果的不确定计算方法,以近耳玩具为例分析了测量中不确定来源,建立了不确定计算的数学模型.指出该噪声测量方法的应用解决了声响玩具噪声测量中的关键问题,提高了测试结果精度和测试效率.     

声响玩具噪声测试自动定位装置的设计与应用

基于欧洲玩具安全标准中玩具噪声测试要求,按玩具类型对其噪声测试方法、测试点位置的确定进行论述,并对玩具噪声测试自动定位装置的机构设计、控制原理、硬件配置和应用进行重点的阐述,指出该定位装置解决了声响玩具噪声测量中测试点位置确定这个关键问题。     

GB 19865—2005《电玩具的安全》标准解读

随着社会的高速发展进步,电玩具已经非常普及,不再是奢侈品,小到毛绒玩具,需要安装电池,大到游戏场所的组装玩具,都深受孩子和家长们的欢迎。然而在电玩具造福儿童幸福的同时,安全的问题,你想到了吗?这可是第一位的,需要各方面的高度重视。国家标准《电玩具的安全》为玩具的研究、制定、实施、监督、服务等环节提供了技术支撑,也为广大消费者带来了福音。下面对该标准作一简要介绍,也有利于该标准更大范围的推广使用。《电玩具的安全》标准涉及的是至少一种功能需要使用的玩具的安全。其范围还包括组装型玩具、实验型玩具、视频玩具。对实验…     

出口轻纺企业如何应对产品召回

目前,出口轻纺产品召回事件日益增加,召回的产品多为玩具和奄装,其召回的主要问题是化学伤害和小零件引起的窒息伤害.出口轻纺企业应加强对出口国技术法规的学习,严格控制好生产过程的质量安全,强化风险防范意识.     

18种玩具存安全隐患被召回

国家质检总局日前通报,广东14家玩具生产企业日前提交召回报告,因小零件、锐利尖端、绳索等存在安全隐患,可能伤及儿童,决定对其生产的18种6239个玩具产品实施召回。本次召回的玩具,因小零件、锐利尖端、用于包装玩具的塑料包装袋、突出物、绳索、弹性绳、小球、活动部件间的间隙等存在安全隐患,涉及广东卡尼童贸易有限公司生产的288个“卡尼童”DIY益智玩具;     

浅析MFE测试工具在浅层井的应用

通过解决浅层井测试中P—T封膈器的坐封负荷小、MFE测试器的延时时间长、开关井时“自由点”难以控制等问题，降低了MFE测试器在浅层井测试中操作的难度，并经实测应用成功，为浅层井测试提供借鉴依据。     

小零件测试筒的新型测量方法及其验证

文章对小零件测试筒内部不规则尺寸的测量提出了一个较为经济可靠的方法,并通过随机实例对此方法进行验证。     

几种地层测试工艺在超浅井的应用

由于超浅井温度低、环空液柱压力低、管柱悬重轻等特点，常规地层测试工艺在超浅井应用效果不很理想。为了弥补这点不足，对超浅井MFE地层测试工艺做了一些改进，但由于测试器本身性能不够好，依旧不能从根本上解决问题。于是，综合实际需求及安全因素，研制开发了新的测试工艺。这些地层测试工艺互有优缺点。本文介绍了大庆油田所应用的四种地层测试工艺，通过它们在超浅井的应用效果对比分析，为超浅井测试工艺优选、实现优势互补提供了有效依据，为测试工具系统化提供了可选手段。     

Hollow fibres with walls filled with hydrogels

Although extractions using hollow fibres can be faster and more efficient than those carried out in more conventional equipment, such as mixer/separators, accidental convection through the pores in the fibre walls can compromise these advantages. A way of overcoming this drawback is to fill the walls of the fibres with a gel, such as crosslinked polyvinyl alcohol. The overall mass transfer is unaltered but the convection through the pores is eliminated.     

Out with the old in with the new

The materials issues facing the microelectromechanical systems (MEMS) community can be understood best in terms of the historical context. The field began almost as an afterthought among those engaged in integrated circuit production. These researchers recognized early on that the same processes used in the production of circuits could be re-ordered to make very small mechanical devices. The huge investment made by the electronics community in silicon technologies — and the relative ease with which these techniques could be adapted to device production — made them an obvious resource for early MEMS designers. It is no accident that polycrystalline silicon is the most commonly used structural material.But with the continued expansion of MEMS devices into new areas of application, the limitations of silicon (Si) usefulness became clear. The need to combine electronics and MEMS on the same chip (iMEMS), improve the wear characteristics of moving parts, and achieve a greater mass of moving parts in MEMS inertial sensors have led researchers away from a ‘one-material-fits-all’ approach. Instead the search is on for materials that more directly serve specific ends. The need for biocompatibility in the emerging field of bio-MEMS has added urgency to the quest for new materials, since Si-based materials cannot meet every bio-MEMS need.     

用心感知生活用感知抒写创意

前几天妹妹在我的"世界之星"颁奖仪式的照片下留言说:"哥,我没想过你的人生会这么精彩!",是啊,连我自己也从未想过我的人生能如此丰富多彩. 很多设计师是因为喜欢美术或是因为从小便培养的美术基础才选择美术专业,跟别人不同,美术是我不高的文化分数无奈之下的选择,万幸的是当我接触它时,便狂热地爱上了它.     

Writing with Fluid: Structuring Hydrogels with Micrometer Precision by AFM in Combination with Nanofluidics

Hydrogels have many applications in biomedical surface modification and tissue engineering. However, the structuring of hydrogels after their formation represents still a major challenge, in particular due to their softness. Here, a novel approach is presented that is based on the combination of atomic force microscopy (AFM) and nanofluidics, also referred to as FluidFM technology. Its applicability is demonstrated for supramolecular hydrogel films that are prepared from low‐molecular weight hydrogelators, such as derivates of 1,3,5‐benzene tricarboxamides (BTAs). BTA films can be dissolved selectively by ejecting alkaline solution through the aperture of a hollow AFM‐cantilever connected to a nanofluidic controller. The AFM‐based force control is essential in preventing mechanical destruction of the hydrogels. The resulting “chemical writing” process is studied in detail and the influence of various parameters, such as applied pressure and time, is validated. It is demonstrated that the achievable structuring precision is primarily limited by diffusion and the aperture dimensions. Recently, various additive techniques have been presented to pattern hydrogels. The here‐presented subtractive approach can not only be applied to structure hydrogels from the large class of reversibly formed gels with superior resolution but would also allow for the selective loading of the hydrogels with active substances or nanoparticles.     

Bridge circuits with pulse supply with extended functional capabilities

Bridge circuits with considerably extended functional capabilities are considered. They enable one, without any change in configuration, to determine the parameters of RL, RC, and RCL multicomponent two-terminal networks when connected to the same two leadouts of the bridge circuits. Translated from Izmeritel’naya Tekhnika, No. 4, pp. 40–45, April, 2009.     

Accommodation with higher-order monochromatic aberrations corrected with adaptive optics

Higher-order monochromatic aberrations in the human eye cause a difference in the appearance of stimuli at distances nearer and farther from best focus that could serve as a signed error signal for accommodation. We explored whether higher-order monochromatic aberrations affect the accommodative response to 0.5 D step changes in vergence in experiments in which these aberrations were either present as they normally are or removed with adaptive optics. Of six subjects, one could not accommodate at all for steps in either condition. One subject clearly required higher-order aberrations to accommodate at all. The remaining four subjects could accommodate in the correct direction even when higher-order aberrations were removed. No subjects improved their accommodation when higher-order aberrations were corrected, indicating that the corresponding decrease in the depth of field of the eye did not improve the accommodative response. These results are consistent with previous findings of large individual differences in the ability to accommodate in impoverished conditions. These results suggest that at least some subjects can use monochromatic higher-order aberrations to guide accommodation. They also show that some subjects can accommodate correctly when higher-order monochromatic aberrations as well as established cues to accommodation are greatly reduced.     

Vehicle routing problem with vector profits with max-min criterion

This article introduces a new routing problem referred to as the vehicle routing problem with vector profits. Given a network composed of nodes (depot/sites) and arcs connecting the nodes, the problem determines routes that depart from the depot, visit sites to collect profits, and return to the depot. There are multiple stakeholders interested in the mission and each site is associated with a vector whose kth element represents the profit value for the kth stakeholder. The objective of the problem is to maximize the profit sum for the least satisfied stakeholder, i.e. the stakeholder with the smallest total profit value. An approach based on linear programming relaxation and column-generation to solve this max–min type routing problem was developed. Two case studies—the planetary surface exploration and the Rome tour cases—were presented to demonstrate the effectiveness of the proposed problem formulation and solution methodology.     

Acute hemolysis with acute renal failure in a patient with valproic acid poisoning treated with charcoal hemoperfusion

Hemoperfusion consists of the passage of anticoagulated blood through a column containing adsorbent particles. It was introduced in 1940 and refined from 1950 to 1970, and then introduced clinically for the treatment of acute intoxications between 1970 and 1980. Life-threatening valproic acid toxicity is an indication for coated charcoal hemoperfusion usually accomplished without complications, but we report a case of acute severe intravascular hemolysis during the time of hemoperfusion with coated charcoal column.