Yellowing Will

Imam Khomeini on God’s Will

The problem of Divine Will has been discussed in detail by Muslim philosophers, theologians and usuliun. Imam Khomeini with regard to the importance of the problem tried to study it analytically. His problems in the field can be referred to as: can the attribute of will be known as existential perfects?  Does Divine Will, while being simple and the same as Divine Essence, is the most perfect ...

Using Gibberellins to Prevent Leaf Yellowing in Cut Lilies

Hybrid lilies are excellent cut flowers due to the availability of flowers with various colors and shapes. Extensive inter-species hybridization has resulted in numerous cultivars, and many new cultivars are introduced to the market each year. While the vigor and reliability of the crop has improved over the years, what has not changed is that the postharvest quality of the cut stem is an impor...

Circular No. 85 - Chlorosis Yellowing of Plants: Cause and Control

Xylanase Treatment Suppresses Light- and Heat-Induced Yellowing of Pulp

Xylanase is commonly applied in pulp and paper industries to ease cost-related and environmental pressures. The effect of xylanase treatment on pulp bleaching is well-established, however, few studies were conducted on the effects of xylanase treatment in pulp yellowing, especially the mechanism of pulp yellowing inhibition by xylanase treatment. In this study, pure xylanase (EC 3.2.1.8) was ap...

Technique to correct yellowing and foxing in antique books

New algorithms for the automatic restoration of antique documents affected by foxing and by yellowing deterioration processes are proposed in the paper. The physical restoration of such objects is both expensive and hard to carry out by nonspecialised library personnel. The proposed algorithms ensure fast and less expensive results, and can be used also by nonqualified operators. Moreover, thes...