Results 111 to 120 of about 175,360,748 (298)
Development and Application of Self-locking Fracturing Circulating Valve
Shiyou jixie, 2015 The low opening pressure of the existing fracturing circulating valve in Zhongyuan Oilfield often lead to premature opening due to imbalanced tubing and casing pressure,pressure impulse and misoperation,thereby result in delayed schedule and rework.To ...
Xu Xinhua +4 more
doaj
Magnetically Actuated Microrobot for Drug Delivery: Current Progress and Challenges
Advanced Robotics Research, EarlyView.Magnetically actuated microrobots are reshaping targeted drug delivery through wireless propulsion, programmable materials, and localized therapeutic release. This review examines how fabrication, body material selection, structural architecture, loading mechanisms, and imaging‐guided control converge to enable microrobotic therapies while identifying ...
Yang Yang, David J. Cappelleri
wiley +1 more source
JTCVS OpenObjective: Aortic valve replacement in children is challenging. The lack of accommodation for somatic growth negatively impacts long-term outcomes. Data on the use of symmetrical oversized leaflets in neocuspidization are limited.
Jalal Cherkaoui, MEng +5 more
doaj +1 more source
Advanced Robotics Research, EarlyView.Flexible surgical robots are advancing minimally invasive interventions for cardiovascular diseases and cancer by enabling precise navigation through complex, submillimeter anatomical pathways. This review highlights recent innovations in actuation, bio‐integrated sensing, AI‐assisted control, and friction‐reduction technologies, discusses current ...
Hermione Truong +14 more
wiley +1 more source
A Safety Valve for Emissions Trading [PDF]
This paper considers the optimal design of an emissions trading program that includes a safety valve tax that allows pollution sources to escape the emissions cap imposed by the aggregate supply of emissions permits.
John Stranlund
core
Distributed Micropneumatic Sensors for Soft Robots to Detect Touch and Pose
Advanced Robotics Research, EarlyView.Soft robots need integrated touch and pose sensing for safe and reliable operation. This work presents a three‐fingered soft gripper with 18 micropneumatic sensors made from the same materials as its pneumatic actuators. By measuring airflow resistance changes in deforming microchannels of the sensors, finger pose and contact are detected, enabling ...
Vilma Lampinen +3 more
wiley +1 more source
Advanced Science, EarlyView.Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang +3 more
wiley +1 more source
Design of a New Type of Electromagnetic Valve Driver for Hydraulic Support
Gong-kuang zidonghua, 2011 In view of problems of single function and no information collection function existed in traditional electromagnetic valve driver of hydraulic support electro-hydraulic control system , the paper put forward a design scheme of a new type of ...
CHEN Zhuo +6 more
doaj
Making Sweat Measurable: Induction, Sampling, and Refreshment in Wearable Biofluid Sensing
Advanced Science, EarlyView.Wearable sweat sensing relies not only on chemical detection but also on controlled biofluid management. This Review integrates sweat physiology, induction strategies, and microfluidic sampling architectures, demonstrating how flux, transport, and refreshment shape measurement reliability.
Soyoung Shin, Wei Gao
wiley +1 more source