小型文创家电产品的数字化参互式设计方法研究

目的针对小型家电产品的硬件设计,在数字技术和文化融合的背景下,梳理设计流程与方法,提升小型家电在文化符号表现层次上的设计效率和品质。方法对现有的家电产品硬件设计方法展开对比分析,提出和解读数字化参互式的创新设计方法;以智能文创空调扇为例,对创新方法进行应用和优化,从对象符号准备、数字符号建模、数字模型产出等环节中,得到符号推演和数字模型双路径相互验证下的创新设计流程。结论数字化参互式设计法在对象目标精确度、多元方案发散性、功能落地验证度、设计产出差异性方面,与传统家电设计方法相比具有效率优势,优化了小型家电产品设计在文化内涵表现上的兼容性,为突显文化附加值的小型文创家电产品设计提供了新思路。

Correlation of the quantifiable parameters of blood flow pattern derived with dynamic CT in solitary bronchogenic adenocarcinoma

Objective:To evaluate the correlation of the quantifiable parameters of blood flow pattern derived with dynamic CT in solitary bronchogenic adenocarcinoma(SBA).Methods:46 patients with solitary bronchogenic adenocarcinomas (SBA)(diameter≤4 cm)underwent multi-location dynamic contrast material-enhanced(nonionic contrast material was administrated via the antecubital vein at a rate of 4 mL/s by using an autoinjector 90 mL,4×5 mm or 4×2.5 mm scanning mode with stable table were performed)serial CT.Precontrast and postcontrast attenuation on every scan was recorded.Perfusion (PBA),peak height(PHBA),ratio of peak height of the SPN to that of the aorta(BA-to-A ratio)and mean transit time(MTT)were calculated.The correlation between peak height of the aorta(PHA)and parameters of the SBA(PHBA,BA-to-A ratio,PBA,and MTT)and those among parameters of the SBA were assessed by means of linear regression analysis.Regression equation among parameters of the SBA were obtain by means of stepwise regression.Results:The correlation between the SBA peak height(PHBA,36.78 HU±12.02)and the aortic peak height(PHA)was significant(r=0.506,P<0.0001).No significant cor- relation was found between the BA-to-Apeak height ratio(15.33%±4.55)and the aortic peak height(r=0.130,P=0.388> 0.05)as it was between the SBA perfusion(PBA,31.86 mL/min/100 g±9.74)and the aortic peak height(r=0.049,P=0.749 >0.05).The SBA perfusion correlated with the PHBA and the BA-to-A peak height ratio(r=0.394,P=0.007<0.05;r=0.407, P=0.005<0.05).The PHBA correlated positively with the BA-to-A peak height ratio(r=0.781,P<0.0001).Mean transit time was 14.84 s±5.52.PBA=18.500+0.872×BA-to-A ratio.BA-to-A ratio=4.467+0.295×PHBA.Conclusion:The linear correlation between the SBA perfusion and BA-to-Aratio and that between BA-to-Aratio and PHBA can be expressed by equation. It is possible to design a simpler scanning procedure of investigation of bronchogenic adenocarcinoma angiogenesis.

The Prediction Analysis of Customer Lifetime Value in Business to Business Enterprise

The measurement of customer assets value has become a significant task in the field of marketing. Although a series of achievements have been formed, the deeper research is still needed in the following aspects： how to build parameter estimation model of various variables based on the interaction among customer assets elements and how to get the scientific and available measured data. In order to solve these problems, this paper, based on the characteristics of customer relationship in Business to Business （B to B） enterprise and the analysis of the variable factors in the interactive models will systematically and practically use the seemingly unrelated regression method to construct three main parameters estimation models in the customer assets measurement model, and prove the feasibility of the model through a case study. Research results show that measurement model system constructed by this method solves the problem of interaction and germination among parameters influencing factors. At the same time, factors concentration simplifies data sources to ensure the reliability and objectivity of the data, and thus improve the accuracy and feasibility of the estimation of customer assets value.

《新华成语大词典》参见条目编纂情况分析

成语之间有着各种各样的联系,可以多种角度进行研究,同源与否就是其中一个角度。《新华成语大词典》提供了一批可供研究的同源成语材料,在书中用"参见"形式进行组织。词典并未对书中参见条目系连的原则做出详细说明,然而词典事实上存在着不同的系连情况。文章拟对《新华成语大词典》参见条目的编纂情况做一个分析,进而得出不同系连情况背后成语条目所蕴含的实质区别。