Color design of cigarette packaging for reducing smoking rate in youth

Since smokers are becoming younger and younger, it is necessary to curb the tobacco epidemic at a younger age to prevent the devastating damage caused by tobacco products to future generations. This study focuses on the color schemes of cigarette packaging. It aims to find out color schemes of teenage consumers' disgust and apply them to cigarette packaging, which ultimately reduces the desire of purchasing and the smoking rate of young people. First, there were two ways to acquire color schemes. One was to extract the color schemes that can make teenagers disgust and keep them away from cigarette by association of psychological adjectives. The other way was to match achromatic colors with the chromatic colors that teenagers dislike in the questionnaire of 126 colors. Finally, eye movement experiment was used to verify the acquired color schemes meet the expected objectives of this study. A new idea to reduce the smoking rate of teenagers was proposed, and a method for the color design of cigarette packaging was provided.     

2.25Cr-1Mo与2.25Cr-1Mo-0.25V钢冷却转变对比分析

采用相变仪、光学显微镜及扫描电镜研究了2.25Cr-1Mo和2.25Cr-1Mo-0.25V钢冷却转变过程,并分析了钒对其冷却转变的影响。结果表明,与2.25Cr-1Mo钢的CCT曲线相比,2.25Cr-1Mo-0.25V钢铁素体转变区及贝氏体转变区均向右移,并且在现有试验条件下已无法观察到珠光体转变区;钒添加到2.25Cr-1Mo钢中,能够提高钢的淬透性,2.25Cr-1Mo-0.25V钢在48 000 ℃/h冷速下能生成部分马氏体;钒能够细化钢板显微组织,与2.25Cr-1Mo钢相比,2.25Cr-1Mo-0.25V钢在800 ℃/h冷速下组织更为细小。     

大块煤破碎装置的设计与应用

岳城煤矿2135厚煤层工作面在开采实践过程中,片帮大块煤会造成带式输送机的堵塞,引发运输故障,需要停机检修。基于该问题设计了一种对大块煤进行有效破碎的装置,应用中设备操作简便,有效地解决了带式输送机机头卸载点和转载机入口的堵塞问题,为企业创造了较好的经济效益。     

LNG接收站腐蚀情况分析

我国 LNG接收站大多位于沿海地带，长期处于高湿、高盐雾环境，按照 ISO12944大气腐蚀环境分类属于 C4或 C5-M等级。随着 LNG接收站运营年限延长，其腐蚀问题逐渐凸显。本文介绍了 LNG接收站工艺、用材、运行介质、原有防腐措施等，在此基础上分析了 LNG接收站常见腐蚀问题，并对其原因进行了分析，为 LNG接收站新站防腐设计和运营维护工作提供参考。     

用于盐湖卤水吸附法提锂的连续离子交换工艺研究

采用连续离子交换技术用于盐湖卤水的吸附法提锂。针对青海一里坪盐湖老卤体系,开发了连续离子交换吸附提锂工艺,研究了操作参数对连续离子交换系统提锂性能的影响,并在优化的工艺条件下进行了长周期的稳定性评价。结果表明,在转动步进周期为20 min、卤水进料量为3.2 BV/h、淋洗水量为2.9 BV/h、解吸水量为9.3 BV/h、解吸温度为15~25 ℃时,连续离子交换系统可以稳定获得镁锂质量浓度比（简称镁锂比）在3左右、锂质量浓度接近1.1 g/L的合格液,锂回收率为98.5%以上。     

预应力锚索锚固力监测点经济高效布设方法研究

预应力锚索锚固力监测点合理布设是提高边坡稳定性监测可靠性的重要手段，在确保边坡稳定安全的同时，可最大程度上节省工程监测成本。现阶段预应力锚索锚固力监测点布设方案设计多依赖工程经验，具有很强的盲目性并且监测成本较大，尤其对于大型高陡边坡，由于挖方量和边坡加固工程量巨大，如何实现高陡边坡预应力锚索锚固力监测点经济高效布设，保证边坡安全高效监测是目前亟需解决的问题。以广东省江门市迎宾西路某高边坡为研究背景，通过研究锚索的群锚效应和锚索失效后的影响范围，确定了监测点之间的合理布设间距。构建了边坡三维模型，通过数值计算，模拟高边坡开挖全过程，由数值计算结果分析边坡开挖过程中变形失稳的潜在危险区域，进行监测点选择型布设。通过上述方法，实现了该段高陡路堑边坡预应力锚索锚固力监测点的经济高效布设。研究表明：基于群锚效应与三维数值模拟方法，提出的预应力锚索合理布设间距与开挖过程中潜在危险区域重点监测相结合的综合布设优化方案，可合理利用材料和空间、大幅节省监测成本，实现边坡的经济、高效监测。研究成果为高陡路堑边坡稳定性监测点合理布设提供了一种新的思路。     

Are uncited papers necessarily all nonimpact papers? A quantitative analysis

Scientometrics - In traditional research, the application of quantitative measurement on the value and influence of uncited papers is not feasible owing to the lack of data. The rapid advancement...     

iRGD-reinforced,photo-transformable nanoclusters toward cooperative enhancement of intratumoral penetration and antitumor efficacy

Nano Research - Insufficient intratumoral penetration greatly hurdles the anticancer performance of nanomedicine. To realize highly efficient tumor penetration in a precisely and spatiotemporally...     

Analysis and improvement of the influence of sample shape on Pu measurement results

ABSTRACT

The analysis method of Fast Neutron Multiplicity Counting (FNMC) plays an increasingly important role in the measurement of nuclear material properties. Based on the assumption of point model, fast neutron multiplicity measurement equation is derived which can be used to measure the mass of Pu sample. However, the deviation of the simulated measurement of 1 kg Pu sample reaches 16.6% and increases with mass. Because nonpoint source samples of different shapes do not fully satify the hypothesis. To correct this deviation, a set of fast neutron multiplicity counters was built by Geant4 to simulate and study the mass attribute of Pu samples.The cylindrical sources of different shapes and different masses were simulated, the self-multiplication factor and α coefficient were corrected.And the corresponding third-order polynomial fitting equation was obtained, the goodness of fit was greater than 0.970. In the same way, the spherical and spherical shell source samples in the mass range of 0–5 kg were analyzed, the corrected mass deviation of samples was less than 10% in this interval. The results show that the combination of the fast neutron multiplicity counter and parameter correction can accurately measure the sample mass attribute.