Majorization of Technical Treating Circle Bamboo with ACQ-B

2013 ◽  
Vol 710 ◽  
pp. 213-216
Author(s):  
Jian Han ◽  
Dan Luo
Keyword(s):  
Trend Analysis ◽  
Water Solubility ◽  
Technical Condition ◽  
Weight Increase ◽  
Repeat Test ◽  
Increase Rate ◽  
Liquid Medicine

Taking water-solubility preservative (ACQ-B) as the agentia, and the liquid medicine concentration (LMC),the forcing time, the liquid medicine temperature (LMT) and the pressure as the test factors, the permo-treatment was processed to the circle bamboo, and the technical conditions of the treatment were compared. The results showed that each factor and the levels in the same factor had all larger differences to the weight increase rate (WGR) of bamboo, and WGR of the specimens in the same level had also larger difference. Through variance, range and trend analysis, the technical condition for anti-decadent of circle bamboo was that LMC was 1.0%, forcing time 15h, LMT 65°C, pressure 0.24MPa, which proved that the preservative could get best permeating result through repeat test.

scholarly journals Сравнительный анализ критериев и методов определения тренда во временных рядах параметров регистрации технического состояния газотурбинных двигателей

2021 ◽  
pp. 93-98
Author(s):  
Владимир Федорович Миргород ◽  
Ирина Маратовна Гвоздева
Keyword(s):  
Time Series ◽  
Statistical Model ◽  
Trend Analysis ◽  
Gas Turbine ◽  
Power Plants ◽  
Technical Condition ◽  
Turbine Engines ◽  
Applied Statistics ◽  
Gas Turbine Engines ◽  
Data Generation

The main directions of improving the processes of life cycle management of power and power plants based on gas turbine engines are based on the strategy of operation according to the technical state. The very concept of a technical condition and the need to assess the tendencies of its permissible change determine the use of applied statistics methods to establish such tendencies - trends. Trend analysis has now emerged as an independent direction in applied statistics due to the specifics of the research object and the importance of applied applications. The problematic issue of the implementation of the strategy for the operation of gas turbine engines according to the technical condition is the reasonable choice of such criteria and methods for determining the trend, which are most consistent with the objects of diagnostics. One of the most important tasks of time series analysis is to substantiate the statistical model of data generation. Such a model, or their combination, should adequately reflect the change in the properties of an object during long-term operation, take into account the features of power plants for aviation and ground use, as well as the experience of use according to the operation manual. The next task is to select and analyze the trend and randomness criteria in relation to the time series, consisting of the parameters for registering the technical state of gas turbine engines. The specificity of trend criteria lies in the fact that at a given level of significance, the hypothesis about the randomness of the time series can only be refuted. The study of an alternative encounters significant difficulties, since the presence of a trend turns a time series into a non-stationary random process. At the same time, the practice of application requires a rational combination of errors of the first (false alarm) and second (trend skipping) kind. Operation by technical condition creates the prerequisites for the use of modern trend analysis methods, which allow dividing the time series into components in accordance with the accepted statistical model of data generation. From the group of such methods, it is advisable to single out the methods of orthogonal decomposition (factor analysis, the method of principal components), since they allow making a predictive assessment of the development of a trend. However, the proposed methods are predominantly scalar in nature, while the initial data on the technical condition of gas turbine engines are multidimensional time series of output parameters related to each other. Comparative analysis of the criteria and methods for determining the trend in the time series of registration parameters is of great practical importance, since it allows increasing the reliability of statistical conclusions about the technical condition of gas turbine engines.

Trend analysis of the International Journal of Human-Computer Interaction from 1989 to 2004

2005 ◽  
Author(s):  
John Neumann ◽  
Jennifer M. Ross ◽  
Peter Terrence ◽  
Mustapha Mouloua
Keyword(s):  
Human Computer Interaction ◽  
Trend Analysis ◽  
Computer Interaction

Use of chemotherapy for early breast cancer in Germany, 2008-2017: A nationwide time-trend analysis

2020 ◽  
Author(s):  
F Riedel ◽  
AS Hoffmann ◽  
M Moderow ◽  
S Heublein ◽  
T Deutsch ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Trend Analysis ◽  
Early Breast Cancer ◽  
Time Trend

Situation Summarization and Trend Analysis of Highway Duty-Commanding Mechanism

CICTP 2019 ◽  
2019 ◽  
Author(s):  
Jiayue Gu ◽  
Keran Dong ◽  
Long Han ◽  
Shuai Chen
Keyword(s):  
Trend Analysis

Efficiency of application of the phase-chronometric method and neurodiagnostics for monitoring the degradation of rolling bearings during operation

2020 ◽  
pp. 43-50
Author(s):  
A.S. Komshin ◽  
K.G. Potapov ◽  
V.I. Pronyakin ◽  
A.B. Syritskii
Keyword(s):  
Life Cycle ◽  
Wavelet Analysis ◽  
Metrological Support ◽  
Rolling Bearing ◽  
Technical Condition ◽  
Measurement Information ◽  
Rolling Bearings ◽  
Vibration Diagnostics ◽  
Bearing Life ◽  
Alternative Approach

The paper presents an alternative approach to metrological support and assessment of the technical condition of rolling bearings in operation. The analysis of existing approaches, including methods of vibration diagnostics, envelope analysis, wavelet analysis, etc. Considers the possibility of applying a phase-chronometric method for support on the basis of neurodiagnostics bearing life cycle on the basis of the unified format of measurement information. The possibility of diagnosing a rolling bearing when analyzing measurement information from the shaft and separator was evaluated.

ANALISIS FISIKA KIMIA DARI KERANG DARA (Anadara granosa) YANG BERASAL DARI KAYUTANYO KAB. BANGGAI The Analysis of physical chemical from dara shells (Anadara granosa) origin from Kayutanyo, Kab.Banggai

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
SULASMI ANGGO
Keyword(s):  
Protein Content ◽  
Water Content ◽  
Water Solubility ◽  
Gravimetric Method ◽  
Fat Content ◽  
Carbohydrate Content ◽  
Dust Content ◽  
Total Dust ◽  
Physical Chemical ◽  
Anadara Granosa

The Analysis of physical chemical from dara shells (Anadara granosa) origin from Kayutanyo, kab. Banggai, has been conducted.Dara shell meat is sleaned and dried and after that powered with blender. Determine % rendement, water bonding capacity and index water solubility with Anderson method, coarse fat content with gravimetric method and carbohydrate method with “bye difference” decrease method.The result of analysis showed rendement value is 24,35%, water bonding capacity is 1,6248 gram/ml, index water solubility is 0,202 gram/ml, water content is 79,0045%, total dust content is 1,072%, coarse protein content is 2,25%, coarse fat content is 8,47%, carbohydrate content is 9,2035%. Keyword : Dara shells, (Anadara granosa), analysis physical chemical

Sign in / Sign up

Export Citation Format

Share Document