protection of archival documents from photochemical eects

Protection of Archival Documents from Photochemical Eects

Purpose: ­The purpose of this paper is to highlight the destructive effects of light on archival documents/paper materials. ­The research aims to explain the mechanism of photochemical degradation and the damaging effect of light on paper. It also tells us about the measures to be adopted to control the deteriorating effects of light on paper step by step. Design/Methodology/Approach: Th­e res...

The Radiative E ects of Aerosols on Photochemical Smog

High concentrations of both ozone and aerosols are observed in the eastern United States during stagnant weather conditions associated with transport from the W or NW; they show similar spatial and temporal patterns. We discuss a causal mechanism that may contribute to this correlation-the radiative eeects of aerosols on photolysis rates. We measured j(NO 2), the rate coeecient for nitrogen dio...

Fact-Checking of Reports in Kalamat-e Anjoman Using Archival Documents on the History of Kashan during the Qajar Era

This research aims to do a content review on the materials printed and published in “Kalamat-e Anjoman” about the history of Kashan. This study also assesses these materials using archival documents in order to confirm or refute the contents. This research used a descriptive/analytical method and the data were obtained from “Kalamat-e Anjoman” and archival documents. Findings show that Abdolras...

Enabling the Archival Storage of Signed Documents

Documents in digital formats are increasingly becoming a common form of expression for anything from rants and opinions to transaction records and contracts. Archiving such documents for the long term, particularly when their only form is digital, can be very important. Sadly, the principal digital expression of an author’s intent, the digital signature, is not fit for long-term archives of doc...

Discovering the insulin documents: an archival adventure.

High Pressure E¤ects

Experiments under hydrostatic and uniaxial pressure serve not only as a guide in the synthesis of materials with superior superconducting properties but also allow a quantitative test of theoretical models. In this chapter the pressure dependence of the superconducting properties of elemental, binary, and multi-atom superconductors are explored, with an emphasis on those exhibiting relatively h...