峰值谷值比 的英文怎麼說
中文拼音 [fēngzhígǔzhíbǐ]
峰值谷值比
英文
peak to valley ratio-
Mz, a, sk, kg and sc / d ( ratio of the sum of silt and clay to sand ) of fluvio - lacustrine, palaeosols and aeolian sands constitute an interlocking, multi - fluctuation process curve with peak and valle y values : the < & value of mz, o and sk values often increase accordingly from aeolian sands to its overlying fluvio - lacustrine facies or / and palaesols, the kg value heightens, too, and the sc / d value also basically consists with its change steps
河湖相和古土壤與風成砂的mz 、 、 sk 、 kg以及sc d （粉砂粘土之和與砂的比值）構成一峰谷交替、犬牙交錯的鋸齒狀多波動過程線：常常是由風成砂至上覆河湖相或和古土壤， mz的值、 、 sk值相應增大， kg相應增高， sc d值亦與之變化步驟基本一致。As the ratio of peak samples to total training samples is low, the prediction accuracy of peak load is poor when applying support vector machine ( svm ) model to predict a periodical load
在應用svm模型于具有周期性負荷的預測時，由於在訓練樣本中峰值或谷值樣本所佔比例很少，從而導致峰值荷載預測精度不高。In the plate region of a vehicle image, the gray value varies frequently in cross - direction, so we define a parameter ". cross variance " to describe it. we also calculate other parameters to approximately locate the plate, they are the space length between two chars, the thickness of stroke, the peak and trough of gray value, the ratio of width and length, etc. at last, we exactly locate the plate by the theory of mathematical morphology
該方法根據圖像車牌區域橫向灰度值變化頻率比較大這一特徵提出了橫向方差參數，並結合車牌的字元間距、筆劃粗細、灰度峰谷值、長寬比值等特徵粗定位車牌，在車牌的精確定位中利用了數學形態學的方法。我們從某高速公路收費站實地拍攝的照片中選取了1000多幅作為實驗樣本數據。The study of t p ratio and smoothness index of amlodipine for essential hypertension
氨氯地賓士療原發性高血壓的谷峰比值與平滑指數研究The biggest diurnal albedo is 0. 24 and the smallest 0. 11. moreover, the peak occurs on the day that radiation is very strong and the soil surface is dry and the valley appears on the day that rainfall is much more before this day and the soil water content of upper layer is high
就反射率的日際變化而言，最大反射率為0 . 24 ，最小為0 . 11 ，相差一倍以上，其峰值均出現在輻射比較強，地表比較乾燥的日期，而谷底一般是在前期降雨較大，表層土壤濕潤時出現。分享友人