谷峰

本文介绍了如何利用MATLAB提供的C++接口，调用MATLAB的科学计算与三维图形显示功能，将抽象复杂的用谷峰法求解函数总体极值的计算过程可视化。

The paper mainly introduces how to use MATLAB to visualize the complicated procedure of finding global extremum of a function with Valley-peak method .

SBP及DBP谷峰比值均＞50%。

T / P ratios of both SBP and DBP were larger than 50 % .

北京降压0号组收缩压和舒张压的谷峰比分别为60.59%和78.13%，平滑指数（SI）分别为0.72±0.27和1.09±0.26。

The trough to peak ratios for SBP and DBP were 60.59 % and 78.13 % , and smoothness index were 0.72 ± 0.27 and 1.09 ± 0.26 respectively in Beijing hypotensive No.

方法以维生素E为主要原料制成乳膏，采用二阶导数光谱法，以维生素E吸收波长295nm谷峰处的振幅D值作为定量分析信息。

Methods To take vitamin E as the main material , then to prepare Pearl and Vitamin E Cream . To take the amplitude D value of vitamin E at 295 nm as the quantitative analysis information by second derivative spectrometry .

利压定组中28例治疗前后测定24h动态血压，计算降压谷峰比值，收缩压为56.8%，舒张压为61.4%；

The 24 h ambulatory BP monitoring was conducted in 28 patients in the active group with a trough peak ratio of 56.8 % for SBP and 61.4 % for DBP .

对12例服贝尼地平患者作动态血压资料分析，24h、白天和夜间平均收缩压/舒张压均显著下降，收缩压和舒张压的谷峰比值分别为78%和80%。

ABPM for 12 patients administrated benidipine showed that benidipine reduced the average blood pressure ( 24h , day , night ) and the mean trough-to-peak ratio was 78 % for SBP and 80 % for DBP .

每小时平滑指数和24h平滑指数趋势图克服了谷峰比时常与实际情况不符及全天平滑指数反映药物降压情况太笼统的缺点，更准确、具体地评价了抗高血压药物的疗效。

Smoothness index of each hour and 24h smoothness index chart could overcome those shortcomings that trough-to-peak ratio was opposite to actual results sometimes and smoothness index of the whole day reflected the blood pressure descending state cursorily and appraise medication more exactly and more concretely .

结论：吲哒帕胺是一种安全、有效、能持续地控制24h血压的降压药物，并具有纠正患者异常的昼夜血压节律和具有良好的降压效应谷峰比值作用。

Conclusion : Indapamide is a safe , effective antihypertensive agent , it can controll 24 hour blood pressure , and correct abnormal regularity of daytime and nighttime blood pressure of patients with hypertension , and Trough : peak ratio of blood pressure response to indapamide is better .

目的用30h动态血压（ABPM）监测，探讨高血压病患者服长效降压药物后计算谷峰比值（T/P）的方法学。

Objective To explore the methodology of calculating trough to peak ( T / P ) ratio by using 30 h ambulatory blood pressure monitoring ( ABPM ) for hypertensive patients after taking long-effective antihypertensive drugs .

讨论了谷峰法的收敛和复杂性，并给出了计算实例。

The convergence and the complexity of the Valley-Peak Method is discussed .

抗高血压药物降压谷峰比率计算的方法学研究

Methodological Study on Calculation of Trough : Peak Ratio of Antihypertensive Drugs

谷峰比值评价降血压药物降压作用的研究

Study of evaluating effects of decreasing blood pressure drug with trough peak ratio

谷峰法计算过程的可视化

Visualization Of Valley - peak Method Cluster Computing

谷峰比值和平滑指数在降压药物疗效评价中的应用

Discussion of trough : peak ratio and smoothness index in clinical evaluation of antihypertensive agents

降压药物谷峰效应在高血压患者护理干预中的应用

Application of nursing intervention on patients with essential hypertension guiding by trough-peak effect of antihypertension drugs

石油化工污泥堆肥中有机质和全氮变化的谷峰现象

The valley phenomenon of changes on organic matter and nitrogen in compost materials including petrochemical industry sludge

求解函数全局极值谷峰法的可视化

Visualization of Valley-peak Method

替米沙坦与赖诺普利降低血压和脉压疗效：谷峰比值和平滑指数的比较。

Blood pressure-and pulse pressure-lowering effects , trough : peak ratio and smoothness index of telmisartan compared with lisinopril .

结果显示，与其它总体方法相比，谷峰法简单、快捷、实用，易于推广应用。

Many numerical examples were tested to show that this method is simple and practical compared with other global methods .

该法从群体出发搜索而非一个起始点，故可使搜索越过函数谷峰来寻找最优点；

The evolutionary strategy algorithm starts search from the colony instead of the individual , so the extremes can be passed .

用药后收缩压、舒张压谷峰比值分别为76.7%和71.2%；

Secondly , the T / P ratio of systolic blood pressure was 76.7 % , the diastolic blood pressure was 71.2 % .

目的观察拉西地平的降压效应、耐受性、谷峰比值及不良反应。

Objective To investigate the hypotensive effect , tolerance , trough to peak ratio and side-effect of lacidipine on the patients with essential hypertension .

以不同方法计算服药后峰/谷效应值、谷峰比值和平滑指数，并比较其重复性。

Peak / trough changes , T / P ratio and smoothness index were calculated by different methods , and their reproducibility was compared .

本文介绍了对求多元函数总体极小谷峰法的基本思路，简述了算法的收敛和复杂性，并用多个典型函数进行了验证和测试。

This paper introduced the basic idea , the convergence and the complexity of the Valley-Peak Method of finding the global minimizers of multivariate functions .

除了有雨流法的优点外，它还能确保每个循环的峰谷或谷峰顺序信息。

In addition to character of rain flow counting , it insures keeping sequence information of peak to valley or valley to peak of each cycle .

血压变异率和血压负荷均较治疗前减少，谷峰比值及夜间血压下降率较治疗前增加；

The blood pressure variety ratio ( BPVR ) and blood pressure loading ( BPL ) decreased , the T / P ratio and the decreasing rate of blood pressure at night increased .

比索洛尔的收缩压及舒张压谷峰比值分别为68.6%和65.0%，平均66.1%。

The peak ratio of systolic blood pressure and diastolic blood pressure , when the patients were treated with bisoprolol , were 68.6 % and 65.0 % respectively , on an average of 66.1 % .

治疗后昼夜血压均有明显下降，降压幅度一致，治疗前后的收缩压与舒张压谷峰比率平均>50%。

Blood pressure went down with same amplitude in both day and night time . Trough to peak ratio ( T : P ) of systolic and diastolic pressure before and after treatment was more than 50 % .

目的：探讨谷峰比值合理计算方法，并比较其与平滑指数反映降压药物降压作用的稳定性。

AIM : To discuss the calculation method of T / P ratio and compare it with smoothness index ( SI ), in order to know which is more stable for assessing the homogeneity of 24 h BP reduction by antihypertensive treatment .

AM组总体方法计算的收缩压、舒张压谷峰比率分别为63%、55%，个体方法计算的收缩压、舒张压谷峰比率分别为（30±42）%、（25±48）%；

In AM group , the systolic blood pressure and diastolic blood pressure trough : peak ratios calculated by global method were 63 % and 55 % respectively , that calculated by individual method were ( 30 ± 42 ) % and ( 25 ± 48 ) % respectively .