نتایج جستجو برای: 3d chamber

تعداد نتایج: 228933  

Journal: :Fluids 2021

Climatic chambers are highly important in research and industrial applications used to examine manufactured samples, specimens, or components controlled environment conditions. Despite the growing demand for climatic chambers, only a few published studies have specifically concentrated on performance analysis functional improvements through numerical experimental studies. In this study, 3D comp...

Journal: :Vibroengineering procedia 2023

Zhong18 wellblock of Fengcheng oilfield developed with low permeability interlayer and had strong heterogeneity, which caused steam chamber conventional assisted gravity drainage (SAGD) process cannot extend lengthwise continuously serious heat loss. To address this problem, a method acid fracturing SAGD is proposed to enhance the oil improve recovery. Based on herringbone well being used in we...

Journal: :Journal of physics 2023

Abstract To explore the chamber plasma jet ignition effect, establishment of pre-chamber based on a 3D model using method numerical simulation was carried out working process calculation. The analysis firearms in combustion characteristics provided reference for performance boost. results show that velocity at igniter outlet can reach 78 m/s and temperature 2300 K, which makes hot spread far en...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1392

سرطان کولون یکی از اصلی ترین عوامل مرگ ناشی از سرطان، در جهان است. فعالیت بیشتر از حد مسیر پیام رسانی سلولیwnt یکی از عوامل ضروری در شروع و پیشرفت سرطان کولون است؛ ازاین رو، مهار مسیر پیام رسانیwnt ممکن است نقش درمانی مهمی در درمان سرطان کولون ایفا کند؛ از طرفی ثابت شده است کورکومین (مشتقی از ریشه زردچوبه) باعث مهار این مسیر میشود؛ تاکنون مطالعات اندکی به بررسی اثر این دارو بر روی میزان بیان ژن...

Journal: :European heart journal cardiovascular Imaging 2012
Andrea Dragulescu Lars Grosse-Wortmann Cheryl Fackoury Luc Mertens

AIMS Different echocardiographic techniques are available for assessing right ventricular (RV) volumes but their clinical validity has not been well established. We compared the feasibility, reproducibility and accuracy of three different echocardiographic techniques for measuring RV volumes and ejection fraction (EF) in children after tetralogy of Fallot (TOF) repair. METHODS AND RESULTS Sev...

Journal: :Journal of magnetic resonance imaging : JMRI 2012
Subashini Srinivasan Peng Hu Kraig V Kissinger Beth Goddu Lois Goepfert Ehud J Schmidt Sebastian Kozerke Reza Nezafat

PURPOSE To assess the efficacy and robustness of motion sensitized driven equilibrium (MSDE) for blood suppression in volumetric 3D whole-heart cardiac MR. MATERIALS AND METHODS To investigate the efficacy of MSDE on blood suppression and myocardial signal-to-noise ratio (SNR) loss on different imaging sequences, seven healthy adult subjects were imaged using 3D electrocardiogram (ECG)-trigge...

2005
Jasbir Sra

Correspondence to: Dr Jasbir Sra, University of Wisconsin Medical School-Milwaukee Clinical Campus, Milwaukee, Wisconsin, USA; bdanek@ hrtcare.com _________________________ I mage registration is the process of aligning images. 2 During interventional procedures to deliver electrical therapy, the catheters or leads are usually manipulated under the guidance of a fluoroscopy system. Typically, a...

2013
W. Fan F. Sun P. Kyösti J. Nielsen X. Carreño M. Knudsen G. Pedersen

Introduction: As a solution to evaluate multiple input multiple output (MIMO) device performance in realistic conditions in the lab, MIMO over the air (OTA) testing has attracted huge interest from both industry and academia, see e.g. [1]. One promising candidate is the multi-probe based anechoic chamber method. Several papers have discussed OTA testing setups for MIMO devices with emphasis on ...

Journal: :Biomaterials 2012
Liang Ma Jeremy Barker Changchun Zhou Wei Li Jing Zhang Biaoyang Lin Gregory Foltz Jenni Küblbeck Paavo Honkakoski

A three-dimensional micro-scale perfusion-based two-chamber (3D-μPTC) tissue model system was developed to test the cytotoxicity of anticancer drugs in conjunction with liver metabolism. Liver cells with different cytochrome P450 (CYP) subtypes and glioblastoma multiforme (GBM) brain cancer cells were cultured in two separate chambers connected in tandem. Both chambers contained a 3D tissue eng...

Journal: :Cancer 2008
Maria V Barbolina Brian P Adley Lonnie D Shea M Sharon Stack

BACKGROUND Although metastatic disease is the primary cause of death from epithelial ovarian carcinoma, to the authors' knowledge the cellular mechanisms that regulate intraperitoneal metastasis are largely unknown. Metastasizing ovarian carcinoma cells encounter a collagen-rich microenvironment because the submesothelial matrix is comprised mainly of interstitial collagens Types I and III. M...

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