Results 51 to 60 of about 53,436 (273)

Attenuation of Sommerfeld effect in a four DOF vibration system driven by a non-ideal induction motor

open access: yesAdvances in Mechanical Engineering
The Sommerfeld effect is a phenomenon in which a non-ideal prime mover fails to provide enough energy around the resonance speed in a vibration system, resulting in resonance capture and a nonlinear jump.
Fengqiang Hu   +6 more
doaj   +1 more source

Impact of the Process Atmosphere During Hot Isostatic Pressing on the Near‐Surface Composition of an Additively Manufactured Austenitic High‐Interstitial Steel

open access: yesAdvanced Engineering Materials, EarlyView.
A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt   +4 more
wiley   +1 more source

Exploration status of the deep Sinian strata in the Sichuan Basin: Formation conditions of old giant carbonate oil/gas fields

open access: yesNatural Gas Industry B, 2020
To construct a giant Sichuan gas province, it is in an urgent need of exploring new replacement areas with abundant natural gas resources and great exploration potential. In this paper, the formation conditions (e.g.
Wenzhi Zhao   +9 more
doaj   +1 more source

Strategizing the Digital Transformation of Oil and Gas Enterprises

open access: yesStrategizing: Theory and Practice, 2023
Digital transformation provides energy security and environmental safety, as well as sustainable growth and competitiveness. In the oil-and-gas extraction industry, effective digital transformation requires detailed strategizing.
O. Beketova
semanticscholar   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Strategic area selection and key exploration fields in central and western large basins

open access: yesShiyou shiyan dizhi, 2023
The reform and new policies of national oil and gas mining rights system have led to the increasing number of mining rights blank areas. In order to tap and enhance the strategic value of oil and gas in blank areas, promote the discovery and full use of ...
Jian CHENG   +5 more
doaj   +1 more source

Causality Relationship between the Development of the Oil and Gas Sector and Foreign Investments

open access: yesInternational Journal of Energy Economics and Policy, 2023
In this study on Azerbaijan, which is dependent on oil, the causality relationship between economic growth, foreign investments, total capital increases in the country and oil and gas sector revenues have been examined.
Bahman Huseynli
semanticscholar   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Effect of Physical Factors on Separation Efficiency of GAS From Oil Case Study in Alif Oil Field (Block 18) [PDF]

open access: yes, 2021
Oil produced from oil well often has large amounts of dissolved natural gas, which has not been released from oil despite at lower pressure than saturation pressure.
Mohammed Saleh, Sleem Qadri
core  

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