Results 101 to 110 of about 8,057 (285)
Torque and drag applications for deviated and horizontal wells: A case study
, 2014 One of the most critical limitations during hydrocarbon exploration, especially during directional drilling, is torque and drag generated by the contacts between the drill string and the borehole or casing.
BURAK KAĞAN ÇAĞLAYAN
core
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Characteristics of high alkali in Zhundong coal ash may cause ash‐related slag discharge problems at entrained‐flow‐bed (EFB) gasifier. In this study, through exploring melting characteristics and viscosity–temperature characteristics, it is found that MN05, MN14, and MN23 show low FTs (< 1160°C).
Meng Li +3 more
wiley +1 more source
Investigating the drag torque in wet clutches using warped friction pairs
Purpose Drag torque reduces the efficiency of the rotating system and affects the stability of transmission. This study aims to investigate the influence of warped friction pairs on drag torque characteristics.
Fengxia Lu +3 more
core +1 more source
Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans
The Anatomical Record, EarlyView.Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban +3 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom +4 more
wiley +1 more source
Integrating whole‐bone and regional analyses to understand human scapular growth
The Anatomical Record, EarlyView.Abstract This study investigates ontogenetic changes in human scapular morphology using three‐dimensional geometric morphometrics with whole‐bone and region‐specific analyses. The aim is to evaluate whether the scapula follows a regular developmental pattern and whether its functionally distinct components, the scapular spine (SS) and glenoid fossa ...
Azahara Salazar‐Fernández +3 more
wiley +1 more source
TelecomThis article discusses the anti-skid braking control mechanism of aircrafts. Aircrafts use a sliding-mode controller (SMC) to generate the desired braking torque on its wheels to stop while landing. Potential runway variations and load differences on the
Zohaib Ijaz +2 more
doaj +1 more source
Drillstring Design in ERD Based on Torque and Drag Analysis using WellPlan [PDF]
, 2012 Directional drilling has long been considered as the backbone of most offshore drilling work. With the advancement of technology and increasingly difficult to reach reservoir, Extended Reach Drilling (ERD) has taken over as the opted solution.
Ainin Nurfarahim Binti Hamdan, Ainin
core
The Effect of Water Management and Cell Compression in Bipolar Membrane CO2 Electrolysis to CO
Carbon Energy, EarlyView.In‐operando neutron imaging uncovers water management challenges in bipolar membrane CO2 electrolysis: Internal water generation floods the cathode, while compression dictates membrane and gas diffusion electrode integrity. Strategic adjustments are applied in this work: dry gas feed and mechanical support of the gas diffusion electrode enable stable ...
Frederik Brendel +7 more
wiley +1 more source
Jixie chuandongTo solve the engineering problem of power loss in wet brakes under non-braking conditions, taking into consideration the influence of the lubricating oil in the clearance of friction pairs on the drag torque of the friction pair, making use of the strong
Li Jie +3 more
doaj