نتایج جستجو برای: growth retardants
تعداد نتایج: 819826 فیلتر نتایج به سال:
This paper aims at updating the progress on the phosphorus-based flame retardants specifically designed and developed for fibers and fabrics (particularly referring to cotton, polyester and their blends) over the last five years. Indeed, as clearly depicted by Horrocks in a recent review, the world of flame retardants for textiles is still experiencing some changes that are focused on topics li...
We are all aware of the ubiquity of polybrominated diphenyl ether (PBDE) flame retardants in the environment and in people; indeed, there have been several reviews on the subject (among others, see Hites, 2004; Hale et al., 2006; Law et al., 2006). In addition to PBDEs, there is a developing body of knowledge on the environmental presence of hexabromocyclododecanes (HBCDs) (see Covaci et al., 2...
Since the 1970s, an increasing number of regulations have expanded the use of brominated and chlorinated flame retardants. Many of these chemicals are now recognized as global contaminants and are associated with adverse health effects in animals and humans, including endocrine and thyroid disruption, immunotoxicity, reproductive toxicity, cancer, and adverse effects on fetal and child developm...
Study of the Thermal Properties and the Fire Performance of Flame Retardant-Organic PCM in Bulk Form
The implementation of organic phase change materials (PCMs) in several applications such as heating and cooling or building comfort is an important target in thermal energy storage (TES). However, one of the major drawbacks of organic PCMs implementation is flammability. The addition of flame retardants to PCMs or shape-stabilized PCMs is one of the approaches to address this problem and improv...
Pot marigold (Calendula officinalis L.) is a medicinal and ornamental plant. The effect of different concentrations of chlormequat (cycocel), and daminozide, two plant growth retardant, on plant height, flowering, the content of essence and some other traits in pot marigold (Calendula officinalis) was assessed. Plant growth retardants are commonly applied to limit stem elongation and produce a ...
The aim of this study is to give an overview about content and constituents of oils found in umbelliferous crops and the conditions influencing oil content in those crops. The large family Umbelliferae is rich in essential oils. Oils play the phytosanitary role by preventing parasites and diseases from developing or by acting like selective weed-killers in order to keep the ground clean around ...
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