Results 51 to 60 of about 360,455 (371)
Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang +2 more
wiley +1 more source
Analysis of Coiled Tubing Failure Caused By Winding
The plastic strain of the coiled tubing caused by winding and unwinding could lead to cumulative residual deformation and low cycle fatigue,resulting in coiled tubing deformation fatigue or fatigue damage.Through analysis on the test loads and onsite ...
Li Yinyin +5 more
doaj
Automatic instrument for chemical processing to detect microorganism in biological samples by measuring light reactions [PDF]
An automated apparatus is reported for sequentially assaying urine samples for the presence of bacterial adenosine triphosphate (ATP) that comprises a rotary table which carries a plurality of sample containing vials and automatically dispenses fluid ...
Chappelle, E. W. +3 more
core +1 more source
This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo +12 more
wiley +1 more source
Development and Application of a Coiled Tube Fatigue Life Prediction Software
During operation, the life of coiled tubing will be shortened due to complex cyclic load effect, corrosion, mechanical damage, manufacturing defect and faulty operation etc.
Liu Shaohu +5 more
doaj
Анализ эффективности освоения скважин закачкой газообразного азота с использованием установки гибкой насосно-компрессорной трубы после гидроразрыва пласта на Южно-Приобском нефтяном месторождении (ХМАО) [PDF]
Объект исследования - колтюбинговые технологии. Цель выпускной квалификационной работы - анализ эффективности освоения скважин закачкой газообразного азота с использованием установки ГНКТ после ГРП на «А» нефтяном месторождении.
Костадинов, Никита Константинович
core
Cold Quad‐Modal Nanocomplex for Precise and Quantitative In Vivo Stem Cell Tracking
Multimodal albumin–bismuth sulfide–superparamagnetic iron oxide (ABS) nanocomplexes are developed for stem cell tracking across four different imaging modalities: MRI, MPI, MSOT, and CT. Combining its flexibility with high sensitivity, this quad‐modal imaging agent enables a robust quantification of ABS‐labeled stem cells in vivo.
Ali Shakeri‐Zadeh +4 more
wiley +1 more source
The Influence of Internal Pressure on Fatigue Life of Coiled Tubing Winding on Roller
In order to study the influence of loading history on the fatigue life of coiled tubing, assuming that the fatigue life of coiled tubing is related to the equivalent strain amplitude and equivalent mean strain, an equivalent method of multi-axial strain ...
Zhou Zhihong, Yuan Taoyong
doaj
Tungsten wire and tubing joined by nickel brazing [PDF]
Thin tungsten wire and tungsten tubing are brazed together using a contacting coil of nickel wire heated to its melting point in an inert-gas atmosphere.
core +1 more source
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler +3 more
wiley +1 more source

