Results 51 to 60 of about 357,981 (246)

Investigation failure behavior in the shear tensile test with variety of specimen stiffness [PDF]

open access: yesMATEC Web of Conferences
This paper focuses on the failure behavior of clinched specimens with various stiffnesses under shear tensile loading. The primary objective is to assess the influence of the specimen stiffness with an arrangement of clinched joints.
Wolf Eugen, Brosius Alexander
doaj   +1 more source

Assessment of perinodular stiffness in differentiating malignant from benign thyroid nodules

open access: yesEndocrine Connections, 2021
Objective: We evaluated the diagnostic accuracy of perinodular stiffness, four risk stratification systems (RSSs) (KWAK-TIRADS, ACR-TIRADS, EU-TIRADS, and C-TIRADS), and the combination of perinodular stiffness and the four RSSs in di fferentiating ...
Lei Hu   +4 more
doaj   +1 more source

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

open access: yesMolecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu   +9 more
wiley   +1 more source

Feedback linearization and simultaneous stiffness-position control of robots with antagonistic actuated joints. [PDF]

open access: yes, 2007
In this paper, the dynamic model of a robot with antagonistic actuated joints is presented, and the problem of full linearization via static state feedback is analyzed. The use of transmission elements with nonlinear relation between the displacement and
Hirzinger, Gerd   +12 more
core   +1 more source

Test for Crankcase Location Device of Locomotive and Vehicle

open access: yes机车电传动, 2017
In order to test the crankcase location device of locomotive and vehicle systematically, the structure and principle was analyzed, and the two test scheme of single piece loading and system loading was designed and compared, focusing on research of ...
PENG Liqun   +4 more
doaj  

The influence of “kickstand” screws on the mechanical performance of a lateral distal femoral plate: a finite element analysis

open access: yesBone & Joint Research
Aims: Lateral locked plating of distal femoral fractures is widely reported, yet there remains a 9% to 19% incidence of mechanical failure. Obliquely directed “kickstand screws”, from the metaphyseal portion of a plate toward far-sided articular ...
Alex Trompeter   +5 more
doaj   +1 more source

Hydrostatic pressure activates HIF‐1α via β‐catenin to promote stemness in breast cancer cells

open access: yesFEBS Open Bio, EarlyView.
To mimic the elevated intestinal fluid pressure in breast cancers, we loaded human breast cancer cells (MCF‐7, MDA‐MB‐453, and BT‐474) to 50 mmHg hydrostatic pressure. Hydrostatic pressure exposure upregulated HIF‐1α and induced stemness in MCF‐7 and BT‐474 cells.
Da Zhai   +8 more
wiley   +1 more source

Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids

open access: yesFEBS Open Bio, EarlyView.
Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão   +3 more
wiley   +1 more source

Dynamic stiffness of articular cartilage and potential repair materials [PDF]

open access: yes, 2012
Cartilage has limited potential for self repair. Therefore, articular cartilage lesions often lead to early osteoarthritis. Early clinical results of cartilage replacement procedures such as autologous matrix-induced chondrogenesis (AMIC) seem promising,
Ronken, Sarah
core   +1 more source

Evaluation of the Viscoelastic Properties of Lower-Extremity Muscles of Pediatric Hemophilia Patients Using Myotonometric Measurements

open access: yesChildren
This study aimed to evaluate the viscoelastic properties of lower-extremity muscles in pediatric hemophilia (FVIII-IX) patients. The study included 20 severe- and moderate-type right-dominant hemophilia patients diagnosed with hemophilia A–B and 20 ...
Tuğba Gönen   +3 more
doaj   +1 more source

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