特钢800产线退火炉HJ10型火焰检测器电路的改进

通过对特钢800产线退火炉HJ10型火焰检测器电路原理的分析对电路改进,解决火焰检测器经常损坏的问题.     

毛细管气相色谱法测定工业用纯苯中微量噻酚的含量

使用HP-1柱和带火焰光度检测器的色谱仪进行试验,在固定柱温和分流比后,用正交试验设计来考察检测器温度、氢气流量、空气流量和进样量这四个因素对噻酚峰响应（峰面积）的影响,找出最佳的操作条件,建立了用毛细管柱气相色谱法测定工业用纯苯中微量噻酚的分析方法,该方法相对标准偏差小于3％,相对误差小于1％。     

小青菜中有机磷农药残留量的测定

建立了同时测定小青菜中三种有机磷农药残留量的毛细管气相色谱测定法，选用火焰光度检测器和毛细管柱，对三种农药进行了测定。结果表明：乐果、甲胺磷和久效磷三种农药有良好的分离；三个不同浓度的标准添加，其回收率范围为90－110％，相对标准偏差范围为2．5－4．0％。该法有着良好的应用前景。     

火焰长距离定向检测光学设计方法的研究

针对现有火焰探测装置探测距离短、不能买现火焰的定向检测等问题,提出了一种基于热释电火焰传感器的光学设计方法和实现方案.在该方案中给出了两种火焰定向检测类型,一种实现面向型定向检测,另一种实现线向型定向检测.在面向型火焰定向检测方案中,探测装置的视角在水平方向和垂直方向采用非对称的光学设计,垂直方向通过专门设计的透镜实现较大范围聚焦,水平方向通过专门设计的夹缝控制视角的大小.线向型火焰定向检测主要基于超小视角的透镜设计得以实现.基于本设计方案的火焰探测器,可以通过适当调节光学参数改变探测距离,并能实现远距离火焰探测,火焰检测具有定向性.这在大空间自动消防水炮设计、森林防火等领域具有广阔的应用前景.试验证明,本系统达到了预期的效果.     

1,1-二氯-2-硝基乙烯的气相色谱研究

文章给出了以氢火焰离子化检测器(FID)测定烯啶虫胺合成中间体中1,1-二氯-2-硝基乙烯含量的气相色谱方法.此方法灵敏、准确,可以应用于实际样品1,1-二氯-2硝基乙烯的测定.     

气相色谱法测定奶粉中香兰素的含量

建立了氢火焰离子化检测器一气相色谱法(FID-GC)检测奶粉中香兰素含量的方法.考察了不同萃取剂对样品预处理的影响,同时对色谱分离条件如毛细管柱极性、柱温及载气流速等条件进行了优化,目标峰获得良好分离.标准曲线方程为y=8539099x-2189,R=0.9995,方法检出限0.003mg.g-1;加标回收率介于93.8%～99.4%之间.RSD=2.5%(n=5).所建立的方法用于实际样品测定获得满意结果.     

气相色谱法同时测定茶叶中3种有机磷农药残留

采用乙酸乙酯和丙酮混合液（1：1,v：v）提取,石墨化炭固相萃取柱净化方法,乙酸乙酯和丙酮混合液（1：1,v：v）浓缩定容,配有火焰光度检测器（FPD）的气相色谱仪同时测定茶叶中灭线磷、地虫硫磷、甲基硫环磷等农药残留,3种有机磷农药在DP-1701P色谱柱上得到很好的分离效果,添加回收率在85．5～108．5％,最小检出浓度为0．01～0．04mg·kg^（-1）,可满足实际工作需要。     

毛细管气相色谱检测室内空气中苯、甲苯和二甲苯

将空气中的苯、甲苯、二甲苯用自制活性炭采样管吸附,经二硫化碳解吸,利用OV-101型毛细管色谱柱分离,使用氢火焰离子检测器检测,以标准样品进行定性,以峰面积进行定量。分别对测试方法的灵敏度、精确度、准确度等方面进行了研究,结果表明该方法的主要技术指标符合室内环境空气监测的要求。     

毛细管气相色谱法测定阿奇霉素原料药中乙醇残留量

建立了阿奇霉素原料药中乙醇残留量的测定方法.采用气相色谱法,氢火焰离子化检测器(FID),以0.1 mol/L稀盐酸为溶剂,HP-FFAP弹性石英毛细管柱为色谱柱(30 m×0.25 mm,0.25μm),氮气为载气,分流比为60∶1,进样口温度为200℃,检测器温度250℃,柱温采用程序升温.乙醇在0.01%-2%的浓度范围内呈良好的线性关系(r=0.9994),RSD在0.78%-1.83%之间,最小检出限为5.0 ng.     

生物柴油（来自废弃玉米油）中三种脂肪酸甲脂的气相色谱分析

建立了用废弃玉米油制备的生物柴油（以离子液体为催化剂）中棕榈酸甲酯、油酸甲酯、亚油酸甲酯的气相色谱分析方法.采用PEG-20M填充柱,氢火焰离子检测器,对色谱条件进行了优化.当柱温为170℃,汽化室的温度为230℃,检测器温度为250℃,载气流速压力为35 mL/min,空气流速压力为450 mL/min,氢气流速压力为50 mL/min时,3个组分在55 min内达到了分离,效果良好.     

Design on general development platform for FPD systems

In this paper, a multi-functional development platform for flat panel display (FPD) development is proposed. With the proposed development platforms, a variety of FPD devices, including organic light-emitting diode (OLED) screens, liquid crystal display (LCD) screens with touchscreens, OLED microdisplay screens, etc., can be directly and instantly connected, examined and utilized. A field-programmable gate array (FPGA) is used in the development system to drive different types of FPD devices, and ARM11 S3C6410 is used as the application processor to provide various services. The development system uses Linux as the system kernel, Qt for Embedded Linux as the UI framework, various system libraries for video and audio services, and a custom-made user engine for fine-polished appearance and behavior. The development platform has been used not only in testing and verification of the FPD devices, but also in building OLED-powered handheld digital devices, shortening the development cycle from OLED devices to mature application products.     

Systematic studies on scan and driving model for fiat panel display

Aiming at the time redundancy in the flat panel display (FPD) imaging process,the paper studied some problems for FPD gray scale controlling based on the fractal theory,dissertates the construction of the space-time mapping topology architecture,the proposition of optimal scanning structure for FPD's gray imaging,and the creation of the fractal theoretic model. Then the logic implementation and system application are presented based on the fractal model of the optimal scan architecture,and the application results achieved target of eliminating time redundancy and increasing the scanning availability.The novel control mode that the fractai scanning IP core described with Verilog language embedded in the FPGA hardware frame can efficiently increase the imaging gray scales and quality in the FPDs scanning controller and speed up the frame frequency of display system.     

Systematic studies on scan and driving model for flat panel display

Aiming at the time redundancy in the flat panel display (FPD) imaging process, the paper studied some problems for FPD gray scale controlling based on the fractal theory, dissertates the construction of the space-time mapping topology architecture, the proposition of optimal scanning structure for FPD’s gray imaging, and the creation of the fractal theoretic model. Then the logic implementation and system application are presented based on the fractal model of the optimal scan architecture, and the application results achieved target of eliminating time redundancy and increasing the scanning availability. The novel control mode that the fractal scanning IP core described with Verilog language embedded in the FPGA hardware frame can efficiently increase the imaging gray scales and quality in the FPDs scanning controller and speed up the frame frequency of display system.     

平板显示器图像/图形转换卡的研制

为满足彩色等离子体显示器的需要 ,设计了基于AL30 0的平板显示器转换卡 ,它能自动识别各种不同制式(PAL/NTSC/SECAM )的视频信号和不同显示模式 (从VGA至SXGA)的PC图形信号 ,并进行数字化处理 ,再根据显示面板对显示像素数目的要求 ,将数字图像 /图形信号进行行内插值、行间插值 (插行 )及时序调整处理 ,转换成PDP满屏显示的数据格式 ,并产生相应的控制信号 ,其工作过程由微控制器经I2 C实现 .该显示转换卡的显示效果令人满意 ,已被应用于多家公司的产品设计     

关于非晶硅面阵探测器无损检测成像系统噪声的校正

详细论述了基于非晶硅面阵探测器的无损检测成像系统．介绍了PaxScan非晶硅面阵探测器性能和成像过程,给出了所设计的系统各主要组成部分及其主要功能．分析了引起图像退化的原因,针对面阵探测器导致图像退化的因素,分别做了校正．实验表明,系统成像质量能达到工业检测最高级B级．     

美国第一级职业学位（FPD）制度分析

第一级职业学位（FPD）是一种独具美国特色的学位类型。在初始阶段,美国教育统计资料中一直把FPD和本科学位合并在一起统计,1960-1961年,FPD开始正式成为单独的统计类别。美国FPD与研究型博士、一般意义上的专业学位均存在明显区别,主要分布在医学、法学和神学三大领域,且涵盖学士、硕士、博士三种学位头衔,关于其中带有＂博士头衔＂的法律博士（J.D.）是否属于一般意义的博士学位,学界存在争议,有学者认为它仅仅是名义上的博士学位。美国FPD的规模一直远大于哲学博士,但其快速发展的时间上滞后于哲学博士。我国专业学位研究生教育的发展,应重在调整,特别是法学、医学等行业性和职业性强学科的研究生教育可以逐步调整到专业学位教育体系中去。     

新型电子全息显示器件及其驱动技术研究

阐述了电子全息显示器件所用的铁电材料的电光特性及器件结构,借鏊其驱动技术.并针对本器件高分辨率的特性,提出了一种适合电子全息显示器件的驱动技术--分区分块的驱动方法.     

串行同步双缓冲扫描提高平板显示器的显示亮度和传送利用率

This paper presents a serial synchronous scanning mode in flat panel display (FPD) by adding a latch buffer between the serializer and the driving buffer. Comparing with conventional techniques, the proposed structure can efficiently reduce the brightness loss and improve the transmission performance. Theoretical analysis and experimental results show that the ratio between the lightest weight display time and the relative transmission time is a tradeoff between brightness loss and transmission efficiency.     

Why People Trust Something Other than Science

In modern society, people are expected to make scientific decisions and rational actions over a range of personal and social problems. There have been a number of studies on students’ and adults’ decision-making over socio-scientific issues under the name of scientific literacy. In this study, we investigated the social and cultural backgrounds of Korean people’s actions and trust over their personal problems (e.g. health, career choice), by conducting in-depth interviews with ten Korean adults on their experience related to acupuncture and Four Pillars of Destiny (FPD), two representative examples of unorthodox sciences. The analysis of the data reveals that their actions concerning acupuncture and FPD are influenced by socio-cultural factors (esp. family culture, social system) and by their understandings of the nature of science. In addition, we found that there are a different set of reasons and varying degrees of people’s trust between acupuncture and FPD. Based on the results, we discussed the needs to introduce wider concepts of the nature of science and of the scopes of science education.

     

Optimal strategy of searching FPD weights scanning matrix using GA-PSO

This paper discusses a kind of optimal method used for searching flat panel display (FPD) scanning matrix. The method adopts bionic algorithm: genetic algorithm (GA) and particle swarm optimization (PSO) algorithm. The method using single GA is more time-consuming, and the search efficiency is low in later evolution; the PSO algorithm is easily falling into the local optimal solution and appears the premature convergent phenomenon. Hence, a hybrid approach of GAPSO is found to optimize the search for high grayscale weights scanning matrix. Finally in the acceptable time, it finds a weight scanning matrix (WSM) of 256 gray scales with Matlab, whose scanning efficiency reaches 94.73% and the linearity is very good.