Results 81 to 90 of about 1,535 (264)

Empirical Characterization and Modeling of the Propagation Channel Inside the VIRC

IEEE Access
Over-the-air (OTA) testing and electromagnetic compatibility (EMC) measurements are widely performed in classical reverberation chambers. A less-known reverberation chamber, yet a considerably efficient environment for generating multipath conditions, is
Mhd Zaher Mahfouz, Robert Vogt-Ardatjew, Andre B. J. Kokkeler, Andres Alayon Glazunov   +3 more
doaj   +1 more source

B-Scan in a Reverberation Chamber

IEEE Transactions on Antennas and Propagation, 2016
In this paper, the B-scan technique is applied to a reverberation chamber (RC) for the first time to characterize the time-domain behavior of the chamber. Based on B-scan measurement results, three things are studied in this paper. 1) The statistical behavior of the fields in the time domain is investigated, and it is found that the received power of ...
Xu, Q, Huang, Y, Xing, L, Tian, Z, Stanley, M, Yuan, S   +5 more
openaire   +1 more source

Freedom dreaming of migrant justice: Critical reflections on counterspaces and institutional violence in the university

American Journal of Community Psychology, EarlyView.
Abstract US universities are built on stolen land and sustained through hierarchies of power that produce what migrant justice scholars name as b/order regimes. As institutions that claim to be sites of learning and inclusion, universities are fraught with contradictions as simultaneously sites of dispossession, exclusion, and control.
Sara L. Buckingham, Jesica Siham Fernández   +1 more
wiley   +1 more source

1,2‐propanediol reformulation improves tribromoethanol safety and reveals pontine GABRA1 enrichment as a candidate mechanistic correlate of anesthesia

Animal Models and Experimental Medicine, EarlyView.
This study develops a reformulated tribromoethanol (TBE) anesthetic using 1,2‐propanediol as a solvent to overcome solvent‐related toxicity. The novel formulation demonstrates, cardiovascular stability, and survival in prolonged protocols. It provides potent, dose‐dependent anesthesia without strain or sex differences.
Xia Li, Yanming Chen, Xinyi Xiao, Guoheng Xu   +3 more
wiley   +1 more source

Methods of Testing of Sound Insulation Properties of Barriers Intended for High Frequency Noise and Ultrasonic Noise Protection

Journal of Mechanical Engineering, 2018
Two test stands for determining sound insulation in the frequency range above 5 kHz were made. One consisted of two horizontally adjacent reverberation rooms and a special source of high frequency sounds and ultrasounds. The other test stand consisted of
Dariusz Pleban, Witold Mikulski
doaj   +1 more source

Reverberation Chambers for Over-the-Air Tests: An Overview of Two Decades of Research

IEEE Access, 2018
The reverberation chamber (RC) has traditionally been used for electromagnetic compatibility tests. About two decade ago, it found application in various over-the-air (OTA) tests of antennas and wireless devices.
Xiaoming Chen, Jiazhi Tang, Teng Li, Shitao Zhu, Yuxin Ren, Zhihua Zhang, Anxue Zhang   +6 more
doaj   +1 more source

Genome‐wide network analysis identifies the lncRNA‐92467/miR‐205‐5p/PTPRM/CAMs axis in a rat model of hypoxic pulmonary hypertension

Animal Models and Experimental Medicine, EarlyView.
The pathogenesis of hypoxic pulmonary hypertension (HPH) remains unclear. In this study, we explored its key regulatory mechanisms using animal models, RNA sequencing, and cellular assays. We found that lncRNA‐92467 functions as a ceRNA, binding miR‐205‐5p, and thereby upregulating PTPRM, inhibiting abnormal proliferation and migration of endothelial ...
Yan‐Ying Shen, Yi‐Bing Chen, Xin Li, Xiang Xu, Ge Guo, Han‐Lu Li, Yong‐Ming Yao, Chun‐Lei Liu   +7 more
wiley   +1 more source

Employing Frequency-Modulated Signals for Tonal Excitation in Airborne Sound Insulation Measurements

Engineering Transactions
To enhance the similarity of acoustic insulation testing conditions in the laboratory, a tonal signal was employed as the excitation signal, reflecting real-world scenarios, such as transformer noise.
Dominik MLECZKO, Marcjanna Maria CZAPLA, Tadeusz WSZOŁEK, Wojciech KOTALA, Jadwiga HYLA, Dominika MUZYK, Wiktoria POTONIEC, Jan BIŃKOWSKI, Aleksandra SAWCZUK, Maciej POSŁUSZNY   +9 more
doaj   +1 more source

Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats

The Anatomical Record, EarlyView.
Abstract The nasal passages of bats that emit their echolocation call through their nostrils have adapted for sound emission as well as standard respiratory and olfactory functions. Rhinolophids, hipposiderids and rhinonycterids all use a high duty cycle (HDC) echolocation strategy.
Carley Goodwin, Jason M. Bourke, Daisuke Koyabu, Kyle N. Armstrong, Vuong T. Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Laura A. B. Wilson   +7 more
wiley   +1 more source

Production of 3D printed biomodels of the canine brain for veterinary neuroanatomy teaching

Anatomical Sciences Education, EarlyView.
Abstract Teaching neuroanatomy presents multiple challenges to both students and teachers, as it is a subject with highly dense content that commonly causes the development of aversion by students, a phenomenon referred to as “neurophobia,” which has been documented in human and veterinary medicine students.
João Victor Barbosa Tenório Fireman, Antônio Chaves de Assis Neto   +1 more
wiley   +1 more source