نتایج جستجو برای: leather

تعداد نتایج: 2500  

2005
C McDONALD

A recent proposal that leatherworkers might face a reproductive hazard was tested using data from a large survey in Montreal of occupational factors in pregnancy. The outcome ofpregnancy in almost 400 women employed in the manufacture of leather products, some 6000 employed in other types of manufacture, and nearly 50 000 employed but not in manufacture were compared. There was little differenc...

Journal: :journal of agricultural science and technology 2013
m. salehi a. mirhadi f. ghafouri kesbi m. asadi fozi a. babak

the aim followed in the present paper was to evaluate the slaughter body and carcass weights as well as the characteristics of hide and leather in dromedaries (one-hump) and in the crossbred (c. bactrianus×c. droedarius) camels. fourteen camels from each sex (female and male) representing two genotypes at 21 months of age were utilized. slaughter weight, hot and cold carcass weights, dressing-o...

2000
Ahmed Mahmud

Archaeological studies have shown that hides and skins have been used since antiquity as clothes, vessels, bedding, and possibly structurally in ancient dwelling places. At present, leather is used in various applications. Hides and skins, raw materials for the tanning industry, are renewable and easily perishable resources (Arugna, 1995). Their production is dependent on the rearing, managemen...

2007
Roberto Viana Ricardo B. Rodrigues Marco A. Alvarez Hemerson Pistori

The performance of Support Vector Machines, as many other machine learning algorithms, is very sensitive to parameter tuning, mainly in real world problems. In this paper, two well known and widely used SVM implementations, Weka SMO and LIBSVM, were compared using Simulated Annealing as a parameter tuner. This approach increased significantly the classification accuracy over the Weka SMO and LI...

Journal: : 2021

Full grain leather refers to the strongest and most durable part of cattle hide, consisting layer underlying corium, has not been sanded or buffed remove any imperfections, that means it displays more natural characteristics leather. Leather quality changes with sampling location, depending on variation present in fibrous structure. properties were also affected by tanning finishing processes u...

2013
Rames C. Panda Chokalingam Lajpathi Rai Venkatasubramaniam Sivakumar Asit Baran Mandal

Toxic odour causes pollution to environment. Removal of odour from wet processing sections of leather tanneries is important to preserve safety and occupational health. Such odour causing gases are identified in nature and are identified mostly as ammonia, Hydrogen sulfide and Volatile organic compounds. These gases, evolving from tanning drums, were experimentally quantified and analysed. Tech...

Journal: :تولیدات دامی 0
مهناز صالحی مربی پژوهشی، بخش فرآوری تولیدات دامی، مؤسسه تحقیقات علوم دامی کشور، کرج ژاله میرعبدالباقی مربی پژوهشی، بخش تحقیقات تغذیه، مؤسسه تحقیقات علوم دامی کشور، کرج محمد علی کمالی سروستانی استادیار پژوهشی، معاونت پژوهشی سازمان آموزش و تحقیقات کشاوررزی، تهران

the study was consequently investigated effect of different tanning methods on apparent density, thickness, tensile strength and also extension percentage in three different tanning (chromic, alum and vegetable) of grown part of ostrich skins (n = 15; 12 to 14 months). average apparent density and thickness of leathers were 0.7 ± 0.0gr/cm2 and 1.7 ± 0.1 mm, respectively. the breaking load, tens...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
g.h. radmard ghadiri a. kalbasi oshtari

fruit leather is one of dried product with variable production, good marketing and popular consumption in many countries of the world. in this research, the effect of concentration temperature (55-75 °c) and time (20-40 min) and drying temperature (40-70 °c) on the chemical composition (brix, ph, sugars and vitamin c) and the microbial properties of apple leather investigated. the results showe...

Journal: :Defect and Diffusion Forum 2021

Cow leather is a widely used material. Even though durable, it causes ethical, social, and environmental issues. The synthesis of vegan leather, using symbiotic culture bacteria yeast (SCOBY), could be explored for an alternative to cow leather. Presently, there are limited studies on the different substrates produce this method. Hence, study aimed plant-based various such as black tea, green c...

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