Results 111 to 120 of about 45,923 (289)

A Comparative Case Study of EMG-Driven Controllers in Transtibial Prostheses

IEEE Transactions on Neural Systems and Rehabilitation Engineering
Lower limb amputation greatly affects quality of life by restricting functional mobility. Despite advancements in prosthetic design, powered transtibial prostheses still have limitations in user control and adaptability to dynamic environments.
M. Abdelbar, Faranak Rostamjoud, Anna Lara Armannsdottir, Atli Orn Sverrisson, Kristin Briem, Sigurur Brynjolfsson   +5 more
doaj   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Passivity Preservation for Variable Impedance Control of Compliant Robots

, 2019
The notable performance exhibited by impedance controllers during robotic interaction, has led to widespread use of this control methodology. Improved position and interaction control might be attainable, through utilisation of Variable Impedance Control
Spyrakos-Papastavridis, Emmanouil, Dai, Jian S., Childs, Peter R.N.   +2 more
core   +1 more source

Analysis and mitigation of circulating currents for grid-forming DERs during parallel black-start in islanded systems

International Journal of Electrical Power & Energy Systems
Following a large-scale power outage, grid-forming (GFM) distributed energy resources (DERs) can facilitate rapid system recovery using parallel black start technology. However, the DER parallel-operation systems (DERPS) may generate circulating currents
Li Sun, Hong Wang, Guangzhong Dong
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Torque and workspace analysis for flexible tendon driven mechanisms

, 2010
Tendon driven mechanisms have been considered in robotic design for several decades. They provide lightweight end effectors with high dynamics. Using remote actuators it is possible to free more space for mechanics or electronics.
Chalon, Maxime, Hirzinger, Gerd, Thomas Wimböck, Wimboeck, Thomas, Gerd Hirzinger, Maxime Chalon   +5 more
core   +1 more source

Transcriptional profiling of circulating extracellular vesicles from prebiopsy prostate cancer patients

Molecular Oncology, EarlyView.
RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner, Pierre Tennstedt, Randi C. Pose, Christian Müller, Katharina Besler, Svenja Schneegans, Malik Alawi, Marie C. Roesch, Sven Peine, Desiree Bonci, Joanna Budna‐Tukan, Evi Lianidou, Catherine Alix‐Panabières, Derya Tilki, Klaus Pantel   +14 more
wiley   +1 more source

Design and Analysis of a Biphasic Variable Impedance Actuator

, 2012
Variable impedance actuators guarantee control performance for robots and robotic peripherals that are inherently safe to humans in their environment especially in cooperative tasks involving human-robot interaction.
Rezia Molfino, Bo Han, MOLFINO, REZIA, ZOPPI, MATTEO, HAN, BO, Matteo Zoppi   +5 more
core   +1 more source

Research on variable impedance control of SEA-driven upper limb rehabilitation robot based on singular perturbation method

International Journal of Advanced Robotic Systems
This paper proposes a variable impedance control strategy based on the singular perturbation method to address the challenges of achieving accurate impedance characteristics and mitigating stability degradation in two-degree-of-freedom planar SEA-driven ...
Bingshan Hu, Hao Ren, Zhou Zhou, Fengchen Liu, Hongliu Yu   +4 more
doaj   +1 more source

Research on adaptive impedance control technology of upper limb rehabilitation robot based on impedance parameter prediction

Frontiers in Bioengineering and Biotechnology
Introduction: With the aggravation of aging and the growing number of stroke patients suffering from hemiplegia in China, rehabilitation robots have become an integral part of rehabilitation training.
Yuling Zhang, Yuling Zhang, Tong Li, Tong Li, Haoran Tao, Haoran Tao, Fengchen Liu, Fengchen Liu, Bingshan Hu, Bingshan Hu, Minghui Wu, Hongliu Yu, Hongliu Yu   +12 more
doaj   +1 more source