نتایج جستجو برای: soldering

تعداد نتایج: 2525  

Journal: :Journal of the Japan Welding Society 1968

Journal: :Journal of the Japan Welding Society 1989

Journal: :IEEJ Transactions on Industry Applications 2007

Journal: :ELECTRONICS: Science, Technology, Business 2018

Journal: :Thorax 1967
G M Sterling

copper as a material for electric cables. A previous survey of respiratory complaints after the use of this particular flux had failed to show any objective change in lung function, and the present cases are the first to be reported. Both subjects have been investigated by means of serial spirometry, peak flow rates, and body plethysmography following inhalation of small amounts of flux fumes; ...

2002
T. Zednicek

Legislation is being developed worldwide to reduce the lead content in many consumer electronic products. This is being taken as an action to reduce environmental impact when such products are discarded. Despite the fact that lead containing solders in electronic assemblies account for only 0.49% of world lead consumption, the trend in legislation will likely be to require not only reduced lead...

1998
Ricardo Amorim Nelson R. F. Braga

An interesting tool for investigating the quantum features of a field theory is the introduction of compensating fields. For instance, the anomalous divergence of the chiral current can be calculated in the field-antifield formalism from an extended form of QCD with compensating fields. ons, how is the mapping between bosonic and fermionic representations of this extended QCD2. In the bosonic f...

Journal: :Research in Agricultural Engineering 2013

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