基于商业空间光环境影响的果汁商品外包装评价

随着人们对生活品质需求的逐步提升,商业空间光环境的功效不能仅局限于满足商品陈列的照明需求,还需满足人们的心理舒适度以及偏好需求.以果汁商品外包装的两种常见属性即外包装材质和颜色为变量,分别研究不同色温的商业空间光环境下,两种变量对消费者情感应答的影响和色温对两种变量影响的偏好分析.模拟实验以室内商业空间照明方式下的便利店及商场内超市的光环境为基础,选用3种色温3000,4500,6000 K,采用一般照明方式中300 lx照度.果汁商品外包装选用3种不同材质(金属铝、复合纸类和塑料),每种材质用5种颜色(红色、黄色、绿色、紫色、粉色).研究结果表明:粉色和紫色适合于不同光环境下的不同材质,受色温改变的光环境影响较小;在3种材质包装中,复合纸类、金属铝材质更受消费者喜爱,受色温改变的影响较小.4500 K色温的光环境适宜不同材质,为实验中兼顾性最优的色温值.商家可以通过优化商业空间光环境,促进商品销售,同时为消费者提供更舒适的购物体验.     

如何评判专色印刷的色彩可重复性

在彩色书刊和包装印刷中，专色使用的比重越来越多，要求也越来越高。如何获得专色的一致性和准确再现性是提高产品质量、推广产品品牌以及赢得客户信赖的必要条件。如何确保专色印刷中的色彩可重复性，也是业界人士应当关注的问题之一。     

滚筒网版印刷——高档包装印刷的首选

近几年来,网印业以极快的速度蓬勃发展。印刷产品的质量成为竞争的关键因素。对许多网印厂家而言,更新换代、添置新型高质量的网印设备迫在眉睫。虽然目前平面、曲面网印机用得较多,而较少使用滚筒网印机,但随着包装印刷向高品质、高效率和多样化方向的发展,滚筒网版印刷将成为     

基于色粉成像的数字印刷机发展回顾

自1993年在Ipex展会上首台数字印刷机亮相以来,数字印刷技术发展之迅猛可以说日新月异。数字印刷技术不但开创了个性化印刷的市场,并且逐渐蚕食短版印刷市场,而这在以前完全是胶版印刷的领地。按照印刷方式分类,数字印刷主要分成两大类型,即基于色粉印刷方式和基于喷墨的印刷方     

Quantitative proteomics of Lactococcus lactis F44 under cross-stress of low pH and lactate

Lactococcus lactis encounters 3 environmental stimuli, H⁺, lactate, and undissociated lactic acid, because of the accumulation of lactic acid—the predominant fermentation product. Few studies have examined how these stimuli synergistically affect the bacteria. Herein, we analyzed the dissociation degree of lactic acid at different pH and investigated the cellular response to cross-stress in L. lactis ssp. lactis F44 through quantitative proteomic analysis using isobaric tags for relative and absolute quantitation of 3 groups: 0% lactic acid with pH 4.0 and 0% lactic acid with pH 5.0 for acid stress; 2% lactic acid with pH 7.0 and 3% lactic acid with pH 7.0 for lactate stress; and 2% lactic acid with pH 4.0, 2% lactic acid with pH 5.0, 3% lactic acid with pH 4.0, and 3% lactic acid with pH 5.0 for cross-stress. We observed that the metabolisms of carbohydrate and energy were inhibited, which might be due to the feedback inhibition of lactic acid. The arginine deiminase pathway was improved to maintain the stability of intracellular pH. Additionally, some differentially expressed genes associated with the general stress response, amino acid metabolism, cell wall synthesis, and regulatory systems played significant roles in stress response. Overall, we highlighted the response mechanisms to lactic acid stress and provided a new opportunity for constructing robust industrial strains.     

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��The measuring method of the hydraulic capacity of inundated non-free water jet flow acting on the rock surface at the bottom with a special device and the relation of jetting distance and nozzle number with hydraulic capacity are expounded. It is concluded that the optimal jetting distance is 8-10 times as long as the equivalent diameter of the nozzle and the hydraulic capacity may be raised as the nozzle number decreases.     

H-SegMed: A Hybrid Method for Prostate Segmentation in TRUS Images via Improved Closed Principal Curve and Improved Enhanced Machine Learning

International Journal of Computer Vision - Prostate segmentation is an important step in prostate volume estimation, multi-modal image registration, and patient-specific anatomical modeling for...     

Impact of contact time,pH, ionic strength,soil humic substances,and temperature on the uptake of Pb(II) onto graphene oxide

The uptake of Pb(II) from wastewaters onto graphene oxide was studied as a function of various water quality parameters. The results indicated that uptake was fast and kinetic uptake could be well fitted by a pseudo-second-order model. The uptake was strongly dependent on pH and independent of ionic strength. Namely, inner-sphere surface complexation was the main uptake mechanism. The presence of humic acid or fulvic acid enhanced the uptake at low pH values, while reduced at high pH. The Langmuir, Freundlich, and Dubinin–Redushkevich (D-R) isotherm models were used to simulate the uptake. Thermodynamics indicated that the uptake was endothermic and spontaneous.     

Coercivity enhancement of Nd2Fe14B/α-Fe nanocomposite magnets through neodymium diffusion under annealing

The coercivity enhancement of ball-milled Nd2Fe14B/α-Fe nanocomposite magnets was investigated. It was found that the coercivity could be enhanced through mixing a small amount of Nd powder with as-milled Fe-rich Nd-Fe-B powders. The annealed samples were investigated by means of X-ray diffraction, scanning electron microscopy and magnetic measurement systems. Under annealing, some of Nd powders promoted the formation of hard magnetic phase Nd2Fe14B. On the other hand, a few of Nd would diffuse into the interface of Nd2Fe14B/α-Fe nanocomposite to compensate for the loss of the interfacial magnetic anisotropy. These two features are all beneficial to the coercivity.