This study’s aim was to identify how the application season and method of early cleaning (EC), first stage multistage pre-commercial thinning (PCT), affected time consumption in EC subsequent second PCT operation. The worktime recorded spring, summer, autumn 22 sites, which were either totally cleaned or point cleaned. Later, these sites measured at PCT. Time estimated PCT, based on rem...

In order to reduce extra capital and energy cost caused by fouling and ageing, this paper presents a new methodology for synthesizing heat exchanger network (HEN) with the cleaning schedule optimized. Two cleaning methods with different cleaning efficiency are used to remove fouling and ageing, so the cleaning mode has to be selected along with an optimal cleaning schedule. The process is imple...

There is no magic solution for data cleaning. The user has always to specify the cleaning operations to perform. A huge number of operations may have to be specified. Yet, this is the condition to detect and correct the data quality problems successfully. Most of the cleaning operations are generic enough to be applied to different databases. These operations may be limited to databases of the ...

Data cleaning is the process of correcting anomalies in a data source, that may for instance be due to typographical errors, or duplicate representations of an entity. It is a crucial task in customer relationship management, data mining, and data integration. With the growing amount of XML data, approaches to effectively and efficiently clean XML are needed, an issue not addressed by existing ...

This paper introduces the concept and principle of data cleaning, analyzes the types and causes of dirty data, and proposes several key steps of typical cleaning process, puts forward a well scalability and versatility data cleaning framework, in view of data with attribute dependency relation, designs several of violation data discovery algorithms by formal formula, which can obtain inconsiste...

here, in situ synthesis of nano zinc oxide, along with aminolysis of polyester fabric, has simultaneously been carried out by using triethanol amine (tea) and zinc acetate. the zno nano particles (nps) were formed and stabilized on the fabric surface by amine compound at 130 °c for 1 h. the synthesis of nano zno particles on the polyester fabric were confirmed by x-ray diffraction (xrd) pattern...