检测器
- 与 检测器 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The results showed that the dynamic characteristics of pupillary system is quite nonlinear, the pupil system behaves like a positive differential detector.
实验结果表明系统的动态特性是非线性的,它具有正微商检测器特性。
-
The major achievement of this paper is: Based on characteristics of the traffic data distribution, execute pattern recognition operations on traffic condition on two dimensions by clustering, then use BP neural network to describe and forecast traffic flow aiming at each pattern. Making use of classic flow-occupancy inverse "V" model, implement polynomial fitting using least-squares algorithm and statistics method on flow curves to detect outliers which are proved to be not accord with practice through the actual implement, then use the moving average model to recorrect the outliers and absent. Make correlation analysis on muti-direction flow queues of the intersection and ones of upriver intersections, choose flow queue with high correlation as assistant one to improve the error tolerance of the prediction system, at the same time we can use the method to give an estimation of flow in intersection with out sensors. We design and implement an SOA(Service-Oriented Architecture)-based UTDD(urban traffic data mining development) with high expansibility and performance, which implement unified management and call of the data-mining application though defining a XML-based description of data-mining process and a common interface to call data-mining process, finally we build traffic flow prediction application model on UTDD.
根据交通流量数据分布的特征,提出基于k-means的二次聚类方法,对交通流量在流量大小和时间上进行模式划分,进而对各个交通流模式进行基于BP神经网络的描述和预测,从而提高模型对流量预测的精度; 2)根据流量/时间占有率倒&V&字形曲线分布模型,提出基于最小二乘法的三次多项式曲线拟合和统计方法的异常检测方法,实际应用表明该方法能够有效识别异常数据,然后根据移动平均算法对异常数据进行修正; 3)基于序列相关性分析,分别对预测方向的交通流量数据序列、上游路口相关序列以及预测路口其它各个方向上的交通流量序列进行分析,选择相似性流量序列,作为辅助序列提供其他没有检测器路口的流量估计; 4)设计和实现了基于SOA(Service-Oriented Achitecture)的高性能、可扩展的智能交通数据挖掘系统UTDD,该系统通过定义基于XML的数据挖掘过程描述和通用的过程模型接口,实现数据挖掘应用的统一管理和调用,最后在UTDD上建立了基于路口流量预测的应用模型。
-
However, membrane suppressors also have certain disadvantages compared to packed bed suppressors such as cost, leakage of regenerant causing higher detector background, the requirement for an external supply of regenerant solution and the fact that membrane suppressors are complex and not user serviceable.
&然而,与填充床抑制器相比,膜抑制器也有不足之处,如成本,再生剂泄漏导致更高的检测器背景,需要外部提供再生溶液,以及膜抑制器的复杂性和用户难以操作的事实等等,因此,开发低价、高性能填充床抑制器会更有益。&这正是万通致力所为!
-
However, membrane suppressors also have certain disadvantages compared to packed bed suppressors such as cost, leakage of regenerant causing higher detector background, the requirement for an external supply of regenerant solution and the fact that membrane suppressors are complex and not user serviceable.
&然而,与填充床抑制器相比,膜抑制器也有不足之处,如成本,再生剂泄漏导致更高的检测器背景,需要外部提供再生溶液,以及膜抑制器的复杂性和用户难以操作的事实等等,因此,开发低价、高性能填充床抑制器会更有益。&这正是万通致力所为!万通MSM抑制器提供十年的保用期,是现有的最成熟、尖端的填充床抑制器。
-
A method for the micro determination of germanium by flow injection-spectrophotometry with CCD diode array detector is reported, based on the color reaction between germanium and salicyl fluorone in the presence of cetyl trimethyl ammonium bromide. A good linear relationship was obtained in the range of 0~3.0 mg/L for germanium.
研究了在溴化十六烷基三甲铵存在下,锗与2,3,7-三羟基-9-水杨基荧光酮-6的显色反应,采用二极管阵列检测器,建立了检测微量锗的流动注射分光光度法。
-
In the practice it plays an important part in insect surveys, the choice of grain method, the improvement of grain storage level, the extension of storage time and the delay of grain quality deterioration. 1 Research on stored product insects in large warehouse 1.1 Community composition and structure analysis of stored product insects in large warehouse By means of GJ89 type probe trap investigation of stored grain insects and analysis of community composition and structure of large warehouse were carried out in Chongqing Beibei State Grain Reserve Depot. The results showed that there were main Lipocelis botrychophilus、 Cryptolestes ferrugineus、 Tyrophagus putrescentiae and Sitophilus zeamais etc in large warehouse
高大平房仓储粮昆虫生态学研究 1.1 高大平房仓散装储粮昆虫群落组成及结构分析使用GJ89型粮虫陷阱检测器对中央储备粮重庆北碚直属库高大平房仓储粮昆虫进行系统调查,并对其群落组成及结构进行了分析,结果表明高大平房仓储粮昆虫主要有书虱Lipocelis botrychophilus、锈赤扁谷盗Cryptolestes ferrugineus、腐食酪螨Tyrophagus putrescentiae和玉米象Sitophilus zeamais等4类,其中书虱为绝对优势种群;在粮堆垂直方向0~50cm 4类昆虫发生最多,100~150cm发生最少;4类昆虫在粮面0~50cm丰富度、优势度、多样性及均匀度4项指标均高于50~100cm和100~150cm,水平方向6个区域各项指标差异不大。
-
Benzoic acid, sorbic acid and saccharin sodium were determined in the same time by HPLC with UV detector.
通过加入适量沉淀剂除去样品中绝大部分蛋白质和脂肪后,用高效液相色谱法,由紫外检测器同时测定牛乳中苯甲酸、山梨酸和糖精钠。
-
Gas chromatography ; Solid phase micro-extraction ; Pulse flame photometric detection ; Stenchy sulfides
气相色谱法;固相微萃取;脉冲火焰光度检测器;恶臭硫化物
-
Gas chromatography with sample-pretreatment by solid-phase micro-extraction and with pulse flame photometric detection was applied to the determination of 6 stenchy sulfides(hydrogen sulfide,carbon disulfide,methanethiol,1,2-ethanedithiol,dimethylthioether and carbonyl sulfide) in polluted air.
应用固相微萃取预处理技术,采用脉冲火焰光度检测器-气相色谱法测定污染空气中硫化氢、二硫化碳、甲硫醇、1,2-乙二硫醇、甲硫醚、羰基硫6种恶臭硫化物。
-
Company? to? offer? a? self-contained? oxygen measurement in the popular 12 mm format similar to standard process pH electrodes and classical sterilizable? oxygen? sensors.? Combined? in? the?
的推出,使 HAMILTON 成为第一家能提供与标准在线 pH 电极和经典灭菌型溶氧电极相类似的 12mm 规格内置溶氧检测器的公司。
- 推荐网络例句
-
Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
-
The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
-
However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。