... ABSTRACT Polymetallic nodules include useful metals such as cobalt, nickel, copper, and manganese, and are expected to be economic deep-sea mineral resources in the future. The Metal Mining Agency of Japan (the Japan Organization for Metals and Energy Security at present) has performed studies...

... hydraulic collection metals & mining influence test bottom clearance tank single particle test experimental setup eductor ABSTRACT A numerical and experimental investigation has been done to understand the critical suction height (h) and flow influenced area around the Polymetallic...

...) sampling in a manganese nodules survey cruise conducted by Deep Ocean Resources Development, Co., Ltd. (DORD), which is under an exploration contract with the ISA. upstream oil & gas seafloor japan government asia government geology metals & mining bottom touchdown sensor data spade...

... that utilizes the tri-circular arc obstacle-avoidance trajectory with an equal curvature for path re-planning. However, these works are subject to model mismatches, nonlinearity, and external disturbances in dynamic environments. fuzzy logic metals & mining asia government reinforcement learning...

... canada government stalheim united states government metals & mining microstructure fracture toughness standard deviation pipeline toughness performance degradation precipitate tendency ductile hydrogen pressure application pressure gaseous hydrogen pre-screening methodology...

... government liquified natural gas hydrogen storage tank metals & mining hydrogen storage tank lng tank application carbon steel stainless steel hydrogen embrittlement liquid hydrogen material reliable evaluation program transformation ni steel alloy capacity liquefied storage tank...

... geology japan government plate tectonics geologist transformation steel mining constitutive equation hydraulic fracturing plastic strain tensile test stainless steel module plastic deformation metals & mining deformation tank fraction earthquake material constitutive equation...

... subsurface corrosion europe government riser corrosion production chemistry well integrity germany government imperfection flowline corrosion slip factor materials and corrosion slip-resistant connection metals & mining corrosion inhibition coating test series test specimen reference test...

... hydraulic fracturing metals & mining hydrogen embrittlement production chemistry industrial gases hydrogen environment h2s management specimen hydrogen stainless steel fracture surface internal hydrogen quasi-cleavage area mixed zone strength external hydrogen reduction...

... liquified natural gas ni steel allowable stress metals & mining hydrogen weld joint sufficient toughness midstream oil & gas lng toughness hydrogen tank fracture surface liquid hydrogen tank room temperature high-pressure hydrogen hydrogen embrittlement resistance mpa tensile stress...

...-static tensile tests, fatigue tests, Charpy impact bending tests, fractographic analyses and investigations of the corrosion behavior are presented. riser corrosion production chemistry pipeline corrosion wall structure investigation corrosion management geology oilfield chemistry metals...

... property microstructure europe government steel mining hydrogen embrittlement production chemistry fatigue life reduction hydrogen transport pipeline corrosion corrosion inhibition pipeline steel mechanism investigation oilfield chemistry metals & mining canada government hydrogen...

... tension is the easiest condition to be martensite. japan government steel mining martensite expansion asia government plastic strain specimen metals & mining metastable austenitic stainless steel transformation martensitic transformation stress field displacement stainless steel...

... overall area monitoring during the production process. upstream oil & gas production monitoring thermography quality assurance offshore construction management steel mining non-destructive testing method defect metals & mining testing method laser-induced thermography reservoir...

... after decommissioning of these structures. social responsibility sustainability norway government united states government steel metals & mining offshore steel reuse structural component upstream oil & gas europe government steel mining reuse process brussels standardization...

.... asia government metals & mining strength structural geology china government layered rock sample upstream oil & gas rock type geological subdiscipline inclination angle ultimate strain interlayer geologist rock sample reservoir characterization compressive strength rock mass...

... hydraulic fracturing hydrogen proceedings grain growth asia government steel mining united states government metals & mining toughness specimen microstructure fracture toughness ishikawa haz international pipeline conference nb addition linepipe steel fracture behavior...

... in linepipe steel. asia government steel mining bainitic steel strength japan government metals & mining ferrite-pearlite steel toughness test hydraulic fracturing hydrogen microstructure mpa gaseous hydrogen specimen carbon steel hydrogen concentration steel fracture toughness...

... Curve concept and the applicability of the transition temperature correlation for duplex stainless steels based on experimental fracture toughness and Charpy-V impact tests. This contribution presents the results of these investigations. germany government metals & mining duplex 1...

... midstream oil & gas china government upstream oil & gas h2s management production chemistry oilfield chemistry steel mining offshore pipeline metals & mining clad pipe requirement weld corrosion management asia government pipe corrosion inhibition steel pipe...