Results 51 to 60 of about 133,825 (302)
Arthritis Care &Research, EarlyView.Objective The goal was to assess the diagnostic performance of three novel autoantibodies (NA) for Sjögren disease (SjD) by comparing NA prevalence in patients with SjD, other autoimmune rheumatic diseases (ARDs), nonspecific chronic sialadenitis (CS), and controls.
Chadwick R. Johr +5 more
wiley +1 more source
Communicating uncertainty in geomagnetic field estimates provided by the BGS to aid directional drilling [PDF]
, 2008 Navigating underground when drilling for oil and gas has become more challenging as companies try to hit smaller targets in reservoirs already congested with existing wells.
Macmillan, Susan
core
, 2013 [1] In situ test of hydraulic fracturing (HF) provides the only way to observe in situ stress magnitudes directly. The maximum and minimum horizontal stresses, SHmax and Shmin, are determined from critical borehole pressures, i.e., the reopening pressure
Boutt, David +21 more
core +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
A mutation detection method of discontinuous structures in rock strata based on drilling parameters
Scientific ReportsDiscontinuous structures in coal mine roadway roofs, such as rock interfaces and joint fractures, are critical factors leading to surrounding rock instability.
Xin Sun +5 more
doaj +1 more source
Research on off-line data synchronization method of measuring while drilling system
Gong-kuang zidonghua, 2017 An off-line data synchronization method was proposed to solve the problem that attitude data of measuring while drilling system of an ordinary medium or small rotary drilling rig cannot be uploaded on-line.
LIU Zongwei, SONG Jiancheng
doaj +1 more source
Data Acquisition in Running Triple Combo, a Combination of Measurement While Drilling (Mwd) and Logging While Drilling (Lwd) with Nuclear Logging Tool, Assessed by Safety Aspects [PDF]
, 2010 Drilling and exploration in oil and gas jobs require accurate yet fast data on formation being drilled. This type of activity utilizes services providing real time logs with triple combo combining MWD (Measurement While Drilling) and LWD (Logging While ...
Setianingsih, L. S. (Lilis)
core
Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
Dynamic behavior analysis for a six axis industrial machining robot [PDF]
, 2012 The six axis robots are widely used in automotive industry for their good repeatability (as defined in the ISO92983) (painting, welding, mastic deposition, handling etc.).
Bisu, Claudiu-Florinel +3 more
core +1 more source
Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
Advanced Engineering Materials, EarlyView.We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source