1,498 research outputs found

    Literature review on pickling inhibitors and cadmium electroplating processes

    Get PDF
    Because introduction of hydrogen during bright-cadmium electroplating of high strength steels causes hydrogen-stress cracking, a program was undertaken to evaluate various processes and materials. Report describes effectiveness of inhibitors for reducing hydrogen absorption by steels

    Study to minimize hydrogen embrittlement of ultrahigh-strength steels

    Get PDF
    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

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

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

    MolabIS - An integrated information system for storing and managing molecular genetics data

    Get PDF
    BACKGROUND: Long-term sample storage, tracing of data flow and data export for subsequent analyses are of great importance in genetics studies. Therefore, molecular labs do need a proper information system to handle an increasing amount of data from different projects. RESULTS: We have developed a molecular labs information management system (MolabIS). It was implemented as a web-based system allowing the users to capture original data at each step of their workflow. MolabIS provides essential functionality for managing information on individuals, tracking samples and storage locations, capturing raw files, importing final data from external files, searching results, accessing and modifying data. Further important features are options to generate ready-to-print reports and convert sequence and microsatellite data into various data formats, which can be used as input files in subsequent analyses. Moreover, MolabIS also provides a tool for data migration. CONCLUSIONS: MolabIS is designed for small-to-medium sized labs conducting Sanger sequencing and microsatellite genotyping to store and efficiently handle a relative large amount of data. MolabIS not only helps to avoid time consuming tasks but also ensures the availability of data for further analyses. The software is packaged as a virtual appliance which can run on different platforms (e.g. Linux, Windows). MolabIS can be distributed to a wide range of molecular genetics labs since it was developed according to a general data model. Released under GPL, MolabIS is freely available at http://www.molabis.org

    A study of hydrogen embrittlement of various alloys Annual summary report, 24 Jun. 1965 - 23 Jun. 1966

    Get PDF
    Hydrogen embrittlement of alloy cathodically charged and notched tensile metal

    Review of literature on hydrogen embrittlement

    Get PDF
    Hydrogen embrittlement in high strength iron-base and nickel-base alloys and titaniu

    Variance component estimation on female fertility traits in beef cattle

    Get PDF
    The purpose of this review is to define possible breeding objectives for Southern African beef cattle farmers and to review different means of expressing genetic reproductive merit. The breeding objective considered was to maximize the number of calves born or weaned for a given number of cows in a herd under prevailing environmental and management conditions. This is a complex trait that has many components. While this trait is clearly a function of the reproductive ability of each cow, it is also affected by the age structure of the herd. A number of auxiliary or index traits are used to assess this objective and their merits, shortfalls and requirements in terms of data collection are discussed. It was evident that the trait of choice was influenced by the management system. Fewer component traits can be measured and incorporated as variables in a genetic model in more extensive systems. Since South African beef cattle production systems tend to be semi-extensive or extensive, traits to consider include calving rate, calving success, calf survival, days to calving, age at first calving, calving date, calving ease and calving interval.African Journal of Animal Science, Vol 31, Issue 3, Oct - Dec: pp. 131-14
    corecore