Analysis of theoretical premises for biodeterioration of leather materials and leather products
نویسندگان
چکیده
منابع مشابه
Leather
Leather is derived from the hides of skins of animals. It is a remarkably durable, strong and versatile material, which in its various forms has been made into objects ranging from African shields and drums to European saddles and kinky underwear. From as early as 2700 BC until fairly recently leather was also in the forefront of information technology with its use (as skins, vellum and parchme...
متن کاملCharacterization of Leather Industry Wastes
In this research samples from solid wastes coming out from various process steps during manufacturing of garment sheep skins, shoe upper goat skins, shoe upper hides and sole leathers have been collected. These samples have been classified among themselves and their characteristics have been determined by various chemical analysis. By characterization of solid wastes which state problems for th...
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پس از بررسی هر کدام از فاکتورهای نوع صنعت, نوع ضمانت نامه, نرخ بهره , نرخ تورم, ریسک اعتباری کشورها, کارمزد, ریکاوری, gdp, پوشش و وثیقه بر ریسک اعتباری صندوق ضمانت صادرات ایران مشخص گردید که همه فاکتورها به استثنای ریسک اعتباری کشورها و کارمزد بقیه فاکتورها رابطه معناداری با ریسک اعتباری دارند در ضمن نرخ بهره , نرخ تورم, ریکاوری, و نوع صنعت و ریسک کشورها اثر عکس روی ریسک اعتباری داردو پوشش, وثی...
15 صفحه اولLeather bioprocess intensification: Ultrasound assisted novel enzymatic hair-loosening system for leather processing
The use of enzymes for hair loosening in leather processing provides a cleaner option. However, there is need to improve the efficiency of these unit operations involving bioprocess by way of process intensification techniques, such as, the use of ultrasound. In this paper, the use of ultrasound has been studied in native enzyme papain (A) based hair-loosening system and compared with commercia...
متن کاملFalse Position based Auto Exposure Algorithm for Properly Exposing the Leather Samples in the Leather Industries
In order to detect the defects in the leather sample in an automated way, the image of the leather sample has to be captured properly. To properly capture the images of the leather sample, we have implemented an auto exposure algorithm based on false position method which is discussed in this paper. This algorithm can also be used to properly expose the natural scenes
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ژورنال
عنوان ژورنال: Technology audit and production reserves
سال: 2016
ISSN: 2312-8372,2226-3780
DOI: 10.15587/2312-8372.2016.65485