The second, and definitely the most important, is by performing all of your moving, renaming, and deleting tasks from inside of Lightroom; however if you forget, not all is lost. Except some time, which is infinitely better than losing photos.
Lost [portable]l
Technical Abstract: Agricultural ecosystems can play a significant role in production and consumption of greenhouse gases, specifically, carbon dioxide. This work evaluated four different tillage methods on the short-term CO2 and water vapor flux from a clay loam soil in the Northern Cornbelt of the U.S.A. The four tillage methods were moldboard-plow only, moldboard plow plus disk kharrow twice, disk harrow and chisel plow using standard tillage equipment following a wheat(T. Aestivum L)crop compared with no tillage. The CO2 flux was measured with a large portable chamber, commonly used to measure crop canopy gas exchange, initiated within five minutes after tillage and continued intermittently for 19 days. The moldboard plow treatment buried nearly all of the residue and left the soil in a rough, loose, open condition and resulted in maximum CO2 loss. The carbon released as CO2 during the 19 days following the moldboard plow, moldboard plow plus disk harrow, disk harrow, chisel plow and not tilled treatments would account for 134%, 70%, 58%, 54% and 27% respectively of the carbon in the current years crop residue. The short-term carbon dioxide losses five hours after four conservation tillage tools was only 31% of that of the moldboard plow. The moldboard plow lost 13.8 times as much CO2 as the soil area not tilled while different conservation tillage tools lost only 4.3 times as much CO2. The smaller CO2 loss following conservation tillage tools is significant and suggests progress is being made in developing conservation tillage tools that can enhance soil carbon management. Any effort to decrease tillage intensity and maximize residue return should result in carbon sequestration for enhanced environmental quality.
The advent of photography revolutionized the way the world around us is recorded. From historic events to the mundane day-to-day, early photographs provide remarkable insights into life of the 19th and early 20th centuries. The passing of time has commonly led to degradation leading to discoloration (yellowing), fading and/or blurring of the original images. Despite this change to the visible image, key components of the photographic information are not lost, including silver and/or other metals (Pt, Pd) used to capture the original image.
One approach to recover the lost images and to develop strategies for preservation of historic photographs is to conduct non-destructive analysis using micro-XRF elemental mapping. However, there are impediments to effective analysis that derive from the thin nature of the silver-bearing layer requiring Ag-L lines to be measured, which overlap with Ar-K (Ar makes up 1% of air). Although analysis of some elements is improved when conducted under vacuum, this is not possible for all photographic materials due to desiccation and further damage of these fragile artifacts. Additional limitations are presented by standard instrument configurations (e.g. Rh X-ray tube) where sensitivity is limited by Rh-L energies from the source being below the absorption edge of Ag and Pd.
The W X-ray source has proven more effective for excitation of Ag, Pd and Pt L lines, covering the common metals used in historic photographs. Micro-XRF maps of this photograph indicate that following this approach, the M4 TORNADO proves to be a valuable tool in recovering photographic images lost due to degradation with time and exposure to the elements. 2ff7e9595c
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