Publications de Wei Zhang | EPFL Graph Search

The 2024 Magnonics Roadmap

Dirk Grundler, Benedetta Flebus, Ping Che, Wei Zhang, Thomas Yu, Qi Wang

Magnonics is a research field that has gained an increasing interest in both the fundamental and applied sciences in recent years. This field aims to explore and functionalize collective spin excitations in magnetically ordered materials for modern informa ...

2024

Gait Variability to Phenotype Common Orthopedic Gait Impairments Using Wearable Sensors

Amir Muaremi, Wei Zhang

Mobility impairments are a common symptom of age-related degenerative diseases. Gait features can discriminate those with mobility disorders from healthy individuals, yet phenotyping specific pathologies remains challenging. This study aims to identify if ...

MDPI2022

Gait features for discriminating between mobility-limiting musculoskeletal disorders: Lumbar spinal stenosis and knee osteoarthritis

Amir Muaremi, Wei Zhang

Background: Functional ambulation limitations are features of lumbar spinal stenosis (LSS) and knee osteoarthritis (OA). With numerous validated walking assessment protocols and a vast number of spatiotemporal gait parameters available from sensor-based as ...

ELSEVIER IRELAND LTD2020

The nuclear receptor corepressor NCoR1 regulates hematopoiesis and leukemogenesis in vivo

Johan Auwerx, Wei Zhang, Lulu Liu, Na Zhang, Yao Zhang

Enhanced understanding of normal and malignant hematopoiesis pathways should facilitate the development of effective clinical treatment strategies for hematopoietic malignancies. Nuclear receptor corepressor 1 (NCoR1) has been implicated in transcriptional ...

AMER SOC HEMATOLOGY2019

The Adapted Lifestyle-Integrated Functional Exercise Program for Preventing Functional Decline in Young Seniors: Development and Initial Evaluation

Wei Zhang

Background: The Lifestyle-integrated Functional Exercise (LiFE) program is an intervention integrating balance and strength activities into daily life, effective at reducing falls in at-risk people >= 70 years. There is potential for LiFE to be adapted to ...

KARGER2019

Mild inborn errors of metabolism in commonly used inbred mouse strains

Johan Auwerx, Evan Graehl Williams, Wei Zhang

Inbred mouse strains are a cornerstone of translational research but paradoxically many strains carry mild inborn errors of metabolism. For example, alpha-aminoadipic acidemia and branched-chain ketoacid dehydrogenase deficiency are known in C57BL/6J mice. ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2019

Topological phase transitions driven by strain in monolayer tellurium

Oleg Yazyev, Wei Zhang, Quansheng Wu

Two-dimensional (2D) Xenes of a single type of element can offer fascinating electronic properties, such as massless Dirac fermions for extremely high charge-carrier mobility and topological insulators for dissipationless electron transport. However, the r ...

AMER PHYSICAL SOC2018

Machine Learning Identifies Stemness Features Associated with Oncogenic Dedifferentiation

Phuong Nguyen, Han Liang, Jian Wang, Wei Zhang, Li Ding, Jun Li, Min Wang, Luca Mattei, Yi Han, Jia Liu, Wei Li, Hui Shen

Cancer progression involves the gradual loss of a differentiated phenotype and acquisition of progenitor and stem-cell-like features. Here, we provide novel stemness indices for assessing the degree of oncogenic dedifferentiation. We used an innovative one ...

2018

Complexity of Daily Physical Activity Is More Sensitive Than Conventional Metrics to Assess Functional Change in Younger Older Adults

Kamiar Aminian, Anisoara Ionescu, Wei Zhang

2018

Gait Symmetry Assessment with a Low Back 3D Accelerometer in Post-Stroke Patients

Kamiar Aminian, Amir Muaremi, Wei Zhang

2018

Ectopic tissue engineered ligament with silk collagen scaffold for ACL regeneration: A preliminary study

Dominique Pioletti, Weiliang Shen, Wei Zhang, Jiayun Huang

Anterior cruciate ligament (ACL) reconstruction remains a formidable clinical challenge because of the lack of vascularization and adequate cell numbers in the joint cavity. In this study, we developed a novel strategy to mimic the early stage of repair in ...

Elsevier2017

In situ dynamic observations of perovskite crystallisation and microstructure evolution intermediated from [PbI6](4-) cage nanoparticles

Michael Graetzel, Ke Gao, Cheng Wang, Wei Zhang, Lichen Zhao, Feng Liu, Rui Zhu

Hybrid lead halide perovskites have emerged as high-performance photovoltaic materials with their extraordinary optoelectronic properties. In particular, the remarkable device efficiency is strongly influenced by the perovskite crystallinity and the film m ...

Nature Publishing Group2017

Improving the Long-Term Stability of Perovskite Solar Cells with a Porous Al2O3 Buffer Layer

Henry Snaith, Antonio Abate, Wei Zhang

Hybrid perovskites represent a new paradigm for photovoltaics, which have the potential to overcome the performance limits of current technologies and achieve low cost and high versatility. However, an efficiency drop is often observed within the first few ...

Amer Chemical Soc2015

Experimental study of the impact of large-scale wind farms on land-atmosphere exchanges

Fernando Porté Agel, Corey Dean Markfort, Wei Zhang

Large-scale wind farms, covering a significant portion of the land and ocean surface, may affect the transport of momentum, heat, mass and moisture between the atmosphere and the land locally and globally. To understand the wind-farm-atmosphere interaction ...

Iop Publishing Ltd2013

Wind-Turbine Wakes in a Convective Boundary Layer: A Wind-Tunnel Study

Fernando Porté Agel, Corey Dean Markfort, Wei Zhang

Thermal stability changes the properties of the turbulent atmospheric boundary layer, and in turn affects the behaviour of wind-turbine wakes. To better understand the effects of thermal stability on the wind-turbine wake structure, wind-tunnel experiments ...

Springer Netherlands2013

Organic Sensitizers with Bridged Triphenylamine Donor Units for Efficient Dye-Sensitized Solar Cells

Michael Graetzel, Hoi Nok Tsao, Wei Zhang

Bridged triphenylamine was chosen as the donor unit for metal-free organic sensitizers in dye-sensitized solar cells (DSSCs). The easily constructed alkene linkage between the donor and the spacer improves the molecule's delocalization and causes a large r ...

Wiley-VCH Verlag Berlin2013

Near-wake flow structure downwind of a wind turbine in a turbulent boundary layer

Fernando Porté Agel, Corey Dean Markfort, Wei Zhang

Wind turbines operate in the surface layer of the atmospheric boundary layer, where they are subjected to strong wind shear and relatively high turbulence levels. These incoming boundary layer flow characteristics are expected to affect the structure of wi ...

Springer-Verlag2012

High Efficiency Quantum Dot Heterojunction Solar Cell Using Anatase (001) TiO2 Nanosheets

Michael Graetzel, Mohammad Khaja Nazeeruddin, Lioz Etgar, Wei Zhang

Wiley2012

On the prediction of heat transfer in micro-scale flow boiling

John Richard Thome, Lorenzo Consolini, Wei Zhang

Xu et al. have recently published a set of results for boiling heat transfer measurements in a multi- channel micro- scale evaporator for flow boiling of acetone in triangular cross- section channels ( hydraulic diameter of 155.4 mm). In the present collab ...

2007

Heat Transfer in Confined Forced-Flow Boiling

John Richard Thome, Lorenzo Consolini, Wei Zhang

Remarkably different behaviors are found when comparing micro-scale flow boiling heat transfer data by distinct authors, even under similar experimental conditions. Such differences are almost certainly related to the complexity of confined forced-flow boi ...

2007