Corrosion of fasteners in furfurylated wood : final report after 9 years exposure outdoors

Corrosion of some common fastener materials – mild steel, stainless steel, zinc-coated steel, brass and Sanbond Z (nickel, zinc and chromate) coated steel – has been evaluated after nine years’ exposure outdoors in untreated Scots pine and furfurylated beech and Southern yellow pine (SYP). The furfurylation was carried out according to a process that resulted in approximately 40 % Weight Percent Gain (WPG). The results show that the corrosion of fasteners in furfurylated wood according to the particular specification is considerably more severe than in untreated wood and very similar to the corrosion caused by thermally modified wood. Mild steel and zinc coated steel have been most susceptible. Stainless steel has not been attacked at all and is therefore strongly recommended for furfurylated wood in outdoor applications

Monitoring the Content of Nitrates in Vegetables and the Influence of the Pickling Technology on the Denitrification Process

The aim of the work was to determine the concentration of nitrites in vegetable products (tomatoes, cucumbers, white cabbage, table beet, carrot, potatoes, onion and green onion, lettuce, spinach and parsley), realized at markets of the cities Ternopil, Kamianets-Podilskyi and Chernivtsi (Ukraine), to separate the distribution of nitrates in vegetables and also to study the influence of lactic microflora on the nitrate content at pickling tomatoes. It was established, that vegetables with the maximum exceed of maximum permissible concentration (MPC) by the nitrate content up to 1,6 times for products of closed soil are realized at markets. For open soil MPC exceed was in average 2,1 times. It was revealed, that most realized samples of tomatoes and leaf salad vegetables have the over-normative exceed of nitrates up to 35 %, and onion – the least one – 20 %. It was established, that nitrates accumulate in different parts of a fruit. In cucumbers, carrot, potato and table beet, the least quantity of nitrates accumulate in the external part of vegetables (near the surface), and the most one – in the central part. At the same time in cabbage and tomatoes, on the contrary, the least quantity – in the central part, the most one – in the area near the base of vegetables (stump). It was established, that at pickling tomatoes with the nitrate content within MPC lactic fermentation takes place with the intensive growth of titrated acidity, the decrease of the nitrate content takes place at this process. Under conditions of pickling tomatoes with the nitrate content two times more than MPC, the pickling process is a bit decelerated, but the nitrate content decreases to the safe level in a finished product. It was established, that vegetables with the nitrates quantity within 1500 mg/kg and more cannot be used in the pickling technology because of the bacteriological influence of nitrates on lactic microflora. Vegetables with such nitrate content must be obligatory condemned

A review of the literature on cleaning, pickling, and electroplating processes and relief treatments to minimize hydrogen embrittlement of ultrahigh-strength steels Special report

Cleaning, pickling, and electroplating processes to minimize hydrogen embrittlement of ultrahigh strength steel

A review of the literature on pickling inhibitors and cadmium electroplating processes to minimize hydrogen absorption by ultrahigh-strength steels

Literature review on pickling inhibitors and cadmium electroplating processes to minimize hydrogen absorption by ultrahigh strength steel

National and International Factors in Pickle Markets

This report presents global and domestic information regarding production, trade and market developments for pickled cucumbers. U.S. cucumber production and trade are commonly divided into two categories: fresh and pickling. Michigan is the largest producer of pickling cucumbers in the country, accounting for 18 percent of total U.S. production. Like many agri-food industries, this processed product sector has gone through numerous changes in the past decade which have influenced production and marketing trends, and assessing the influence of individual factors is difficult. However, using production and trade data it is possible to infer some possible drivers of trends and outcomes for the industry. Year-round supply from other countries, quality products at more competitive prices, changing consumer preferences, and more service-oriented business models have introduced new marketing structures likely to continue driving future trade and production patterns. The information presented in this report is important in order to assess competitiveness and develop a broad and well-informed perspective for the pickling industry in Michigan. The report is structured as follows: first, we present information on global volume produced in the period 1992 to 2004, including rates of change in production and shares of total world production by country. Second, we compare total acreage trends in the U.S and production and acreage trends in Michigan during the late 1990s and early 2000s. Third, we highlight information on pickled cucumber import and export volumes by country. Finally, we present a brief description of historic trends in food marketing and globalization that are likely to continue influencing the pickling industry in the future.Crop Production/Industries, International Relations/Trade,

A comparative study of image processing thresholding algorithms on residual oxide scale detection in stainless steel production lines

The present work is intended for residual oxide scale detection and classification through the application of image processing techniques. This is a defect that can remain in the surface of stainless steel coils after an incomplete pickling process in a production line. From a previous detailed study over reflectance of residual oxide defect, we present a comparative study of algorithms for image segmentation based on thresholding methods. In particular, two computational models based on multi-linear regression and neural networks will be proposed. A system based on conventional area camera with a special lighting was installed and fully integrated in an annealing and pickling line for model testing purposes. Finally, model approaches will be compared and evaluated their performance..Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Study to minimize hydrogen embrittlement of ultrahigh-strength steels

Hydrogen-stress cracking in high-strength steels is influenced by hydrogen content of the material and its hydrogen absorption tendency. Non-embrittling cleaning, pickling, and electroplating processes are being studied. Protection from this hydrogen embrittlement is important to the aerospace and aircraft industries

Michigan: A State at the Intersection of the Debate over Full Planting Flexibility

Greater flexibility in U.S. farm programs with elimination of the restriction on the planting of fruit and vegetable crops (FAVR crops) is likely to be a major issue in congressional 2007 farm policy discussions. Michigan is a state with a wide range of both FAVR and program crops planted under the current policy. To capture the diversity of situations that would apply among of crops covered by the current policy, this research has examined a broad set of Michigan FAVR crops (dry beans, pickling cucumbers, processing tomatoes, fresh market tomatoes, squash, and blueberries). We evaluate both those factors that are likely to prevent the entry of DCP crop producers into the production of FAVR crops (barriers to entry or disincentives) and those factors that are likely to encourage DCP crop producers to enter the production of FAVR crops (inducements to entry or incentives). The balance will determine the likely outcome from elimination of the FAVR. With the exception of dry beans, a change in the FAVR would provide only small (or no) positive incentives for DCP crop producers to enter the production of FAVR crops. Similarly, barriers to entry would, in many cases, be high enough to significantly limit, or even prohibit, movement of DCP crop producers into the markets for FAVR crops. When considering these factors in combination, only dry beans appear to have the potential for entry of a significant number of new producers. In most other cases, the probability of entry by new producers appears to be low. Even with a low or zero response in total supply, equity issues will likely still arise.Agricultural and Food Policy, Crop Production/Industries,

Transport of Zn(II), Fe(II), Fe(III) across polymer inclusion membranes (PIM) and flat sheet supported liquid membranes (SLM) containing phosphonium ionic liquids as metal ion carriers

This is an Accepted Manuscript of an article published by Taylor & Francis Group in Separation Science and Technology on 18/04/2016, available online: http://www.tandfonline.com/doi/full/10.1080/01496395.2016.1174265In this work transport of Zn(II), Fe(II) and Fe(III) ions from chloride aqueous solutions across polymer inclusion membranes (PIMs) and supported liquid membranes (SLMs) containing one of three phosphonium ionic liquids: trihexyl(tetradecyl)phosphonium chloride (Cyphos IL 101), trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate (Cyphos IL 104) and tributyl(tetradecyl)phosphonium chloride (Cyphos IL 167) as an ion carrier was reported. The results show that Zn(II) and Fe(III) are effectively transported through PIMs and SLMs, while Fe(II) transport is not effective. The highest values of initial flux and permeability coefficient of Zn(II) were noticed for SLM containing Cyphos IL 167. Cyphos IL 101-containing SLM is more stable than PIM.Peer ReviewedPostprint (author's final draft

Nitric Acid Pickling Bath Recovery

This case study describes a diffusion dialysis acid recovery technology pilot project at Gerlin Inc, a company that manufactures stainless steel pipe fittings and flanges, to recover acid from their spent pickling baths