Results 111 to 120 of about 320,148 (311)

Research on the error averaging effect of linear feed systems for precision machine tool

Ain Shams Engineering Journal
This paper presents a general and systematic approach for geometric error simulation modeling of machine tools due to the geometric errors arising from manufacturing and assembly, the error averaging mechanism of the linear feed system is investigated by
Guangming Sun, Siqi Chen, Mingze Sun, Rui Gao, Dawei Zhang, Xin Guo, Jian Zhao   +6 more
doaj   +1 more source

Nonlinearities in Cross-Country Growth Regressions: A Bayesian Averaging of Thresholds (BAT) Approach [PDF]

We propose a framework for assessing the existence and quantifying the effect of threshold effects in cross-country growth regressions in the presence of model uncertainty.
Jesus Crespo Cuaresma, Gernot Doppelhofer   +1 more
core  

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

Noise Reduction of Swept-Source Optical Coherence Tomography via Compressed Sensing

IEEE Photonics Journal, 2018
In this paper, we investigate noise reduction in swept-source optical coherence tomography (OCT) using compressed sensing (CS). Multiple scan averaging is a classical method used to enhance the quality of OCT images by reducing the noise of a system ...
Site Luo, Qiang Guo, Hui Zhao, Xin An, Liang Zhou, Huikai Xie, Jianyu Tang, Xiao Wang, Hongwei Chen, Li Huo   +9 more
doaj   +1 more source

Method of Averaging for Impulsive Differential Inclusions [PDF]

, 1998
AMS subject classification: Primary 49N25, Secondary 49J24, 49J25.The paper deals with impulsive differential inclusions in the euclidean space. The main purpose is to justify the method of averaging in the case of bounded and asymptotically small ...
Kitanov, N., Ivanov, R., Plotnikov, V.
core  

Particle filtration: An analysis using the method of volume averaging [PDF]

, 1994
The process of filtration of non-charged, submicron particles is analyzed using the method of volume averaging. The particle continuity equation is represented in terms of the first correction to the Smoluchowski equation that takes into account particle
Quintard, M., Whitaker, S.
core   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

Molecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute, Madeleine Birgersson, Paolo Ceriani, Margareta Wilhelm, Ourania N Kostopoulou   +4 more
wiley   +1 more source

Discussion of the Direct Detection Rx-power Distribution as derived from Intensity Statistics and Comparision with Measurements

, 2003
The intensity of a laser beam after propagation through turbulent media such as the atmosphere may follow different probability density functions (PDFs) depending on the fluctuation regime. For non-coherent receivers the aperture averaging effect reduces
Perlot, Nicolas, Bischl, Hermann, Giggenbach, Dirk, David, Florian   +3 more
core  

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

Molecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric, Line Bjørge, Martine Rott Lode, Cecilie Fredvik Torkildsen, Pia Aehnlich, Rammah Elnour, Daniela Elena Costea, Lars Andreas Akslen, Liv Cecilie Vestrheim Thomsen, Emmet McCormack, Katrin Kleinmanns   +10 more
wiley   +1 more source

Stability Analysis and Control Design for Hybrid AC-DC More-Electric Aircraft Power Systems [PDF]

, 2013
This thesis studies the stability of a more-electric aircraft (MEA) power system with hybrid converters and loads, and proposes a control design method using state feedback.
Li, Xiao
core