Papers by Keyword: Quality Analysis

Abstract: The effect of drying temperatures on the quality of dried Mopan persimmon was studied in this paper. The drying temperatures were selected at 50℃, 55℃and 60℃ respectively. The moisture content, soluble tannin content, total sugar content and total acid content were determined for evaluating the quality of dried samples. The result showed that the drying temperature at 55℃ was the optimal temperature for drying Mopan persimmons. Under the condition, the drying process took for 92 hrs, the final moisture content was 33.71%, the soluble tannin content was 3.02%, the total sugar content and total acid content were 4.83% and 0.24% respectively.

Abstract: The paper presents the main methods of technical-economical analysis of the quality of the metallic material production. The technical - economical analysis of the electric steels quality can be processed both for the product (electric steel) and for the company (electric steelworks). Both the analysis methods for products (A) and the ones for companies (B) are presented in comparison. There are mainly presented and analyzed a specific analysis models for steels elaboration in Electric Arc Furnace (EAF). The main elements specific to the two categories of analysis methods, including mathematical models. The quality of the steels elaborated in the EAF is a very important parameter. From this point of view, there is the need of analyzing the electric steels quality in various methods, including by technical-economical ones. The technical - economical analysis of the electric steels quality can be processed both for the product (electric steel) and for the company (electric steelworks). For the technical - economical analysis for the electric steels quality, we can use two methods: methods of the analysis for the products quality (MAPQ); methods of the analysis for the companys (MACQ).

Abstract: Purpose: Determine the changes of saponin content in Paris polyphylla and analyze the correlation among them to provide theoretical basis for determining the best harvest scheme and clinical Paris polyphylla research; determine the similarity between wild Paris polyphylla and statutory Paris polyphylla, and explore expanding base sources of Paris polyphylla. Method: Adopt HPLC technology, build fingerprint of Paris polyphylla, and determine the content of all polyphyllin. Results: The contents of polyphyllin in different growing years have obvious difference, and the correlation among the compositions in the classification of dioscin is significant, while the correlation among the compositions in the classification of pennogenin is not obvious; the fingerprint of Paris delavayi Franchet and Paris mairei Leveille and the similarity of statutory Paris polyphylla are basically identical. Conclusion: The content of polyphyllin is not the single accumulation of time, it also closely connected with temperature, illumination, humidity and other environment in the growth cycle; the evaluation of the quality of Paris polyphylla should build standard colour spectra and fingerprint, and combine the changes of contents of main index components, thus, the quality of Paris polyphylla can be controlled effectively.

Abstract: In the aerospace experimental task,rule based information quality analysis method is very useful not only to immediately discover the problem in information gathering,transporting and processing,but also to precisely evaluate the accomplish situation. Based on the data analyzing model and characteristic of the aerospace experimental tracking and control information ,the method constructed an information quality analysis rule framework that make real-time information quality analysis a reality by combining the rules in different manner on demand. As a result, the aerospace experiment tracking and control information can be dynamically monitored, and the abnormal data can be captured instantly to help estimating the system malfunction.

Abstract: The quality of diesel truck overall quality is measured through a series of performance indicators. This paper analyzes the complex diesel truck systems through the use of principal component. Through the analysis, several major indicators which affect the truck service conditions are found in many of the performance indicators, and major factors affecting the serviceability of diesel truck are obtained.

Abstract: To cope with the problems of monitoring dynamic and variable quality variation for individualized customization, diagnosing the abnormal variation and adjusting the process at the right moment, is a difficult problem that individualized customization faces in process quality control. This mode dealt mainly with constructing and running dynamic quality control system, integrated several enabling technologies such as process quality analysis on-line based on similarity process, process quality diagnosis based on Elman and expert system of process quality adjustment. It is basis of realizing network, intelligent and automatic process quality control.

Abstract: This paper presents the experiments of Nd:YAG pulsed laser cutting of GH3536 superalloy sheet and investigates the influences of different cutting parameters on laser cut quality factors including recast layer, kerf width and dross formation. The results show that the recast layer possesses finer granularity and higher hardness than those of the matrix, and the thickness of recast layer increases with increased pulse energy and decreases as the cutting speed and gas pressure increase. Oxygen-assisted cutting comes with thick recast layers and argon-assisted cutting acquires thin layers. The low-strength oxide layer worsens the kerf surfaces in oxygen-assisted cutting while argon-assisted cutting produces unaffected surface quality and is suitable for applications with subsequent welding.