Colour-odour correspondences in women during the menstrual cycle: Comparative analysis between the menstrual and ovulation phases

Women might experience modulation in their perception and cognition of colours and odours during the menstrual cycle, but how women's impressions of and correspondence between colours and odours differ according to the cycle changes remains unknown. Here, we experimentally examined women's performance of several tasks, including evaluation of impressions of colours and odours, matching/nonmatching of colours with odours, and identification of odours, comparing two phases: the beginning of menstruation and ovulation. The results showed that participants had similar impressions of colours and odours and made similar colour choices for odours in both the menstrual and ovulation phases, while “pleasant-unpleasant” impressions of colour and odour might vary according to the menstrual cycle. We found no significant differences in odour identification between the phases. The findings imply that hormonal changes during the menstrual cycle might affect “pleasant-unpleasant” impressions of colour and odour but not other features regarding impressions or crossmodal correspondence. In future studies, examination with a large number of participants is necessary.     

Correspondence between colour and odour for women in pre‐menopause and post‐menopause

Cross‐modal correspondences in the human sensory systems often appear for different levels of sensory inputs, such as colour and odour. However, whether there is hormonal modification of such colour‐odour correspondence has remained unclear. Here, we experimentally investigated the influence of hormonal changes in menopausal women by conducting evaluations of colour and odour impressions, matching tasks between colour and odour, and odor identification tasks, comparing two groups of women: premenopausal and postmenopausal. The results showed that both premenopausal and postmenopausal women had similar impressions and images of colours for odors, while postmenopausal women had significantly lower abilities of odor identification than premenopausal women. This suggested that the degree of conviction about an odor's identification might slightly affect the subjects’ impressions of odors and their corresponding colour choices. Menopause might not directly affect cognitive aspects regarding colour or odor, but might instead affect their perceptions.     

结合时间戳的指纹密钥数据加解密传输方案

目的 对于生物密钥而言，生物特征数据的安全与生物密钥的管理存储都很关键。为了构造能够应用在通信数据传输场景的生物密钥，同时保证生物特征本身的模糊性与密码学的精确性处于一种相对平衡状态，提出一种基于时间戳与指纹密钥的数据加解密传输方案。方法 利用发送方指纹特征点之间的相对信息，与保密随机矩阵生成发送方指纹密钥；借助通信双方的预先设定数与时间戳，生成接收方恢复指纹密钥时所需的辅助信息；利用发送方指纹密钥加密数据，实现密文数据的传输。结果 本文方法在仿真通信双方数据加解密的实现中，测试再生指纹密钥的识别率（GAR）与误识率（FAR）。通过实验数据分析，表明了本文提出的指纹密钥生成方法的可用性，以及指纹密钥作为数字身份所具备的可认证性，其中真实发送方的再生指纹密钥识别率可高达99.8%，并且本方案还可用于即时通信、对称加密等多种场景当中。结论 本文方法利用时间戳确定了通信事件的唯一性与不可否认性，同时实现了指纹密钥恢复时的"一次一密"。此外，方案通过保密随机矩阵实现了发送方指纹密钥的可撤销，极大程度保障了指纹数据的安全性。     

形体的构成与表现--徐州师范大学艺术楼群设计浅析

通过对徐州师范大学艺术楼群的设计过程的解析，提炼出从形体构成的角度切入设计来解决环境、功能和表现等问题的设计思想和手法。     

基于韧性断裂准则用有限元方法预测镍涂层薄钢板的成形极限

首先通过拉伸试验,得到了镍涂层薄钢板和低碳钢薄板的材料参数,然后利用有限元软件Abaqus/Explicit对镍涂层薄钢板的冲压成形过程进行了有限元模拟,得到了涂层和基体在冲压变形过程中的应力、应变以及断裂的初始位置及厚度分布,并通过Oyane韧性断裂准则预测了镍涂层薄钢板的成形极限;并将韧性断裂准则的理论计算、试验结果与有限元计算结果进行对比。结果表明:Oyane韧性断裂准则能够较好地预测镍涂层薄板的成形极限和失效的初始位置,预测值与试验值相差较小。     

汽车冷轧钢成形极限曲线测定方法探讨

基于国家标准《GB/T15825.8-2008金属薄板成形性能与试验方法》，开展成形极限曲线试验。试验发现，采用哑铃形的试样可提高试验成功率；成形极限曲线右边部分不完整的问题可通过降低试样和球形冲头之间摩擦力、优化试样宽度变化范围以及增加试样宽度规格得到改善；此外，提出基于软件的寻找缩颈点可行方案。     

重离子加速器数字电源回读系统

为提高数字电源回读数据的精确性、抑制噪声、降低成本，开发设计了全数字化回读系统。在本系统中，发送端的数字电源控制器通过光纤模块，按专用协议以2 kHz频率发送4种数据；接收端的数字信号采集设备接收、存储每台电源的回读数据，并标记以时间戳。系统采用有效机制保证每条数据通路的时钟同步，并提供了数据分析图形化界面。经现场测试，验证了系统的性能，达到了设计目的，使全数字化回读首次在重离子医用加速器励磁电源系统上得到成功应用。基于其较好的抗干扰性和经济性，未来可在重离子加速器中推广应用。     

Hydrophilic polyurethane acrylate and its physical property for efficient fabrication of organic photovoltaic cells via stamping transfer

Recently, stamping transfer process using by soft mold or film has been considered by promising technology to solve the drawbacks of spin coating such as deposition of large area and specific region, reducing the material loss, and multi-staking device structures. For the previous researches, polyurethane acrylate (PUA) stamp was essentially treated the 1H, 1H, 2H, 2H-Perfluorooctyltrichlorosilane (FOTS) for self-assembled monolayer (SAM) onto the Si wafer to modify surface energy. Because the FOTS is known as corrosive material, it is necessary to develop the intrinsic property of PUA with environment friendly. In this research, we investigates non-FOTS based PUA stamping transfer and the different surface energy properties that result in various physical phenomena when used for organic photovoltaics. To transfer the material, the energy release rate (G) between the PUA and the coated material should be smaller than the G between the coated material and the substrate. As a result, hydrophilic PUA was used to reduce the interaction between the PUA and the organic bulk heterojunction (BHJ) layer to transfer the BHJ layer from the PUA stamp to a PEDOT:PSS-coated ITO-substrate. 2-Hydroxyethyl methacrylate (HEMA) is included as the reactive diluent to reduce the PUA viscosity, and the contact angle was measured to compare the surface property between the reference PUA and the HEMA-PUA. The stamping-transferred BHJ device exhibits a 95% relative efficiency (2.9%) when compared to that obtained when using a spin-coating process, which is considered as a good alternative to fabricate optoelectronic devices. More importantly, we have found a decrease in the fill factor (64%–58%) and a comparable performance (3.0%–2.9%) derived from the increase in the charge recombination and resistance during the stamping transfer.     

捣固焦炉干熄焦工艺分析

介绍了捣固焦炉干熄焦系统的工艺流程及主要设备,分析了干熄焦技术的经济效益和环境效益,对捣固焦炉采用干熄焦技术具有一定的借鉴作用。     

STR主减速器内主动锥齿轮的应用研究

通过对驱动中、后桥主减速器内主动锥齿轮轮齿强度及支承轴承所承担载荷的分析,推导出中主减速器内主动锥齿轮及支承轴承所承受的载荷均比后主减速器的小;结合损坏情况的统计分析,找到主动锥齿轮损坏的真正原因,并提出了相应的改进建议。