Results 81 to 90 of about 1,680 (232)
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Wellbore instability driven by the volumetric expansion of reactive shale formations remains a primary operational challenge in modern drilling engineering, causing severe mechanical failures and substantial economic deficits. The objective of this study is to formulate and evaluate a novel dual‐action chemical additive capable of ...
Ghaleb Oriquat +8 more
wiley +1 more source
Research on Diaphragm Pump Fault Diagnosis Method Based on Res‐DCB‐Net
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Nonstationary pressure pulsation signals of diaphragm pumps contain strong background noise and coupled characteristics. This makes it challenging to extract incipient fault features and to decouple faults with similar physical mechanisms. To address these limitations, this paper proposes a spatiotemporal fault diagnosis model named Res‐DCB ...
Jiahui Wang +7 more
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne +6 more
wiley +1 more source
Recent Advances and Development Trends of Global Top Drive Drilling Systems
Shiyou jixieIn complex drilling scenarios such as deep wells， ultra-deep wells， extended-reach wells， and deep-water drilling， top drive systems （TDSs） can effectively shorten tripping time and reduce risks of stuck pipes， and have thus become indispensable key ...
Wang Bo +6 more
doaj
On the Fundamental Behavior of Twin Buried Flexible Pipes
Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering, 1991 KAWABATA, Toshinori +3 more
openaire +1 more source
Hydrogen Permeability of Tubular Polymer Membranes for Biological Methanation Membrane Reactors
Journal of Applied Polymer Science, EarlyView.A reproducible method for permeability measurements of tubular polymer membranes is developed and combined with a comprehensive review of hydrogen permeability data. Based on this analysis, a suitable tubular polymer membrane is identified for application in biological methanation within membrane reactors.
Maximilian Peter Mock +3 more
wiley +1 more source
An analytical method for calculating the thermal conductivity of a twin pipe in district heating system [PDF]
, 2014 In this paper a simple analytical method is introduced for calculating the overall thermal conductivity of a twin pipe in district heating network. The method is developed based on calculating the conductive and convective heat transfer around the casing pipe in different perimetral sections. Temperature inside the supply and return pipes and also over
Nik, Vahid M., Adl-Zarrabi, Bijan
openaire
Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)
The Anatomical Record, EarlyView.Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto +3 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source
Modification of the shape of thermal insulation of a twin-pipe pre-insulated network [PDF]
AIP Conference Proceedings, 2019 Tomasz Janusz Teleszewski +1 more
openaire +1 more source