双模式太阳能自动跟踪系统的研究

为了提高太阳能的光电转换率,该课题构建了一套以单片机为核心控制器的太阳能自动跟踪系统。该系统根据天气条件,相应的选择光电跟踪或太阳运动轨迹跟踪方式对太阳实现跟踪。系统的设计对提高太阳能的利用效率具有一定的理论和实际意义。     

Numerical study on the properties of an active sun tracker for solar streetlight

In this work, a new active sun tracker for solar streetlight combined with photoelectric tracking mode mainly and time-based tracking mode auxiliary was proposed. The sun tracker was designed through three aspects: mechanical structure, electrical system and control procedure. Then, a proper model named Available Energy Absorption Model was built to study the energy efficiency. The numerical average value of energy efficiency in a year is 36% which shows the superiority of the tracking mode on the available energy absorption. Lastly, the mechanical properties analysis of the tracker was implemented on two aspects which include motion simulation and wind resistance. The numerical results prove the feasibility of the double-slider mechanism and the reliability of the tracker’s strength.     

Validation of a new in vitro Sun Protection Factor method to include a wide range of sunscreen product emulsion types

In 2017, Cosmetics Europe performed a double-blinded ring test of 24 emulsion-type sunscreen products, across 3 in vivo test laboratories and 3 in vitro test laboratories, using a new candidate in vitro SPF test method. Based on the results of this work, an article was published showing how data derived from a new lead candidate method conform to new International Standards (ISO) acceptance criteria for alternative SPF test methods (Any alternative method should consider the matrix effect and if required, specify the matrix applicability of the method; Criterion 1a: Systematic differences between methods should be negligible: 95% of all individual results of an alternative method are within the range of ±2× reproducibility standard deviation of the in vivo method, that is overall bias must be below 0.5× reproducibility standard deviation of the in vivo method; Criterion 1b: Measurement uncertainty of an alternative method should be below the measurement uncertainty of the in vivo method. Candidate method predicted values must fall within the full ‘funnel’ (SPF 6-50+) limits proposed by Cosmetics Europe (derived from the same minimum test design, that is using the ISO24444 Method to measure at least 24 products across at least 3 laboratories using at least 5 test subjects/laboratory, in a blinded fashion).). Of the 24 sunscreen products tested, the majority of emulsions were of the oil-in-water (O/W) type, whereas only one was water-in-oil (W/O) and there were no products with a mineral-only sun filter system. In order to confirm the scope of this method, therefore, a new study was conducted that included 73 W/O (12 mineral + organic, 44 mineral only and 17 organic only) and 3 O/W mineral-only, emulsion-type sunscreen products (a total of 76 new sunscreen products). When combined with the previous 24 products (tested in 3 different laboratories), this yielded a new data set comprising a total of 100 emulsion-type sunscreen products, with SPF values ranging from 6 to 50+ (with a total of 148 data points). These products were tested using the double-plate in vitro SPF test method and compared with the ISO TC217/WG7 acceptance criteria for alternative SPF test methods. Over 95% of paired in vitro: in vivo SPF values lay within the upper and lower limits of the ISO acceptance criteria funnel, with no bias. This new in vitro SPF test method, therefore, meets the minimum requirements for an alternative SPF test method to ISO24444:2010, for emulsion-type sunscreen products (which make up the majority of marketed sunscreen products).     

Effect of salt concentrations and drying methods on the quality and formation of histamine in dried milkfish (Chanos chanos)

The effects of salt concentrations (0-15.0%) and drying methods on the quality of dried milkfish were studied. The results showed that the levels of aerobic plate counts, total coliform, water activity, moisture contents, total volatile basic nitrogen (TVBN) and thiobarbituric acid (TBA) of the dried milkfish samples prepared with the same drying method decreased with increased salt concentrations. The samples prepared with the cold-air drying method had better quality in term of lower TVBN and TBA values than those of samples prepared with other drying methods. The histamine contents in all samples, except two, prepared with various salt concentrations by different drying methods were less than 1.9 mg/100 g. Two unsalted samples prepared with hot-air drying at 35 °C and sun drying methods were found to contain histamine at levels of 249.7 and 67.4 mg/100 g, respectively, which were higher than the potential hazard level of 50 mg/100 g.     

利用First Watch在Sun2000 E上实现高可靠性解决方案

介绍了用于实现高可靠性解决方案的软件包———FirstWatch的工作原理及其在Sun2 0 0 0E上的实现方案     

用CAD进行准确快速的建筑日影分析

传统的建筑日影分析方法因繁琐复杂而难以在设计工作中普及应用，笔者发现借助现代CAD的先进技术，可获取日照方向，进而准确快速地分析日影，整个过程原理明确、方法简单，很适合向广大设计人员推广。     

应对入世 苦练内功——太阳纸业积极实施科技兴企战略

阐述太阳纸业应对WTO，科技兴企的战略措施。     

UV damage of the anterior ocular surface – microstructural evidence by in vivo confocal microscopy

Purpose

To evaluate and describe the microstructural changes at the ocular surface in response to habitual ocular sun exposure, correlate them with the UV protection habits and follow their dynamics using in vivo confocal microscopy(ICM).

晒红烟主要化学成分的变化规律研究

本文探讨了晒红烟主要化学成分在大田期积累变化规律，研究结果表明，总氮、蛋白质、总糖、还原糖的积累从移栽后３０天开始增加较多，烟碱是从移栽后５０天开始迅速增加。主要化学成分含量约５０％多是在移栽５０天以后积累。日积累出现最高值的日期，总氮是移栽后５０天，蛋白质是移栽后８０天，烟碱是６０天，总糖是７０天，还原糖是４０天。主要化学成分以叶中分布最多，茎次之，根最少；烟碱在根、茎、叶中的分布比例，生育前期和后期无明显的变化，而其它成分，生育前期以叶中分布居多，根、茎较少，到生育后期叶中分布逐渐减少，根、茎中的分布逐渐增加。     

Sun Blade 2500工作站常见故障及处理方法

文章简要介绍了408XL仪器中使用的Sun Blade 2500工作站在系统启动和运行过程中的一些常见故障,并具体分析了出现各类故障时的对应屏显视图,阐述了通过各种屏显视图、声音、LED灯及其它各种信息来判断系统故障的具体方法,最后给出了各故障的处理方法。