Results 111 to 120 of about 118,769 (293)

Tensions of Sustainability Logics: Performance of a Company Utilizing a Sustainable Business Model

Business Strategy and the Environment, EarlyView.
ABSTRACT In recent years, companies have used sustainable business models to gain a competitive advantage. However, there are tensions due to the inconsistency between social, environmental, and economic logic in sustainable business models, making it difficult for companies to change. To understand the existing tensions and interactions between logics,
Ann‐Kristin Thienemann
wiley   +1 more source

Joint estimation of target time delay and Doppler frequency in passive radar system

Tongxin xuebao, 2015
A novel method of joint estimation of time delay and Doppler shift in passive radar system based on short-time fractional Fourier transform (STFRFT) was proposed.Firstly,the mathematical expression of the STFRFT time-frequency resolution was studied for ...
ANGPeng W, IUTian-shuang Q, IJing-chun L, ANHai-feng T   +3 more
doaj   +2 more sources

Analysis of Doppler frequency shift response mechanism based on OFDM system

MATEC Web of Conferences, 2018
OFDM system is widely used in mobile communication because of its high spectral efficiency and strong anti-multipath capability. However, in high dynamic scenarios, the Doppler shift between the transmitter and the receiver destroys the orthogonality ...
Li Ke, Sun Zhiguo, Ning Xiaoyan, Diao Ming   +3 more
doaj   +1 more source

Maximizing Neurovascular Outcomes of Facial Transplantation: A Comprehensive Review

Clinical Anatomy, EarlyView.
ABSTRACT Facial transplantation is a division of reconstructive surgery which aims to improve the function and appearance of a face that has endured severe disfigurement. Currently, the face transplant procedure uses allogenic tissue, harvested from a brain‐dead donor, to replace damaged facial components.
Olivia A. James, Faye Bennett
wiley   +1 more source

The delta Doppler technique for LDV measurements at long distances [PDF]

A technique for measuring velocity, referred to as a Delta Doppler technique, was presented. This technique determines scattering source velocities by measuring the difference in Doppler shifts of two different frequencies.
Cliff, W. C.
core   +1 more source

Implant‐related orofacial pain managed with implant apicoectomy: A case report

Clinical Advances in Periodontics, EarlyView.
Abstract Background In recent years, the use of implants has emerged as a widely accepted method for the replacement of missing teeth. Although rare, chronic pain associated with implant placement has been reported in the literature. Conversely, apicoectomy, the removal of the apical portion has been integrated into the implantology field in cases with
Oscar Durán‐Garnica, Karen Villarreal‐Arizpe, Hong Chen, Hsun‐Liang Chan, Guo‐Liang Cheng   +4 more
wiley   +1 more source

Predicting Coronary Occlusion Risk during Redo‐TAVR at First TAVR: Asymmetric Calcification Causes Failure

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background and Aims Predicting coronary artery occlusion due to sinus sequestration (SS) during a second transcatheter aortic valve (TAV) procedure using pre‐procedural computed tomography (CT) after the first TAV replacement (TAVR) is underreported.
Kyohei Onishi, Masakazu Yasuda, Nobuhiro Yamada, Naoko Soejima, Ayano Yoshida, Kosuke Fujita, Hiroki Matsuzoe, Tatsuya Miyoshi, Koichiro Matsumura, Kazuki Mizutani, Masafumi Ueno, Genichi Sakaguchi, Gaku Nakazawa   +12 more
wiley   +1 more source

Transcatheter Repair of Sinus Venosus Defect Using a 12‐zig Covered Cheatham‐Platinum Stent in Large Superior Vena Cava—Right Atrium Junctions: Early Multicenter Experience

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Sinus venosus defect (SVD) is a rare congenital heart anomaly characterised by an abnormal communication between the atria, often associated with partial anomalous pulmonary venous connection (PAPVC). Traditional surgical repair carries significant risks, prompting exploration into less invasive transcatheter approaches.
Alberto Fuensalida, Eric Rosenthal, Saleha Kabir, Gergely Szantho, Sophia Yong, Demetris Taliotis, Mark Turner, Radwa Bedair   +7 more
wiley   +1 more source

On the Correlation Between the SAR Backscatter Modulation and Surface Waves Orbital Velocity

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
A challenging effect in the retrieval of ocean surface currents from synthetic aperture radar (SAR) is the so-called wave-induced Doppler velocity. This effect arises from the correlation between the modulation of the normalized radar cross section (NRCS)
Anis Elyouncha, Roland Romeiser
doaj   +1 more source

Numerical investigation on the influence of mesoscopic deformation on contact area and hydraulic aperture to fracture seepage

Deep Underground Science and Engineering, EarlyView.
Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han, Yuanlin Bai, Weijie Zhang, Jicheng Zhang, Hongfa Ma, Weiye Li   +5 more
wiley   +1 more source