Results 91 to 100 of about 1,012,554 (263)

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Thermal Characteristic Analysis of Supercritical CO2 Fuel Assembly Based on Sub-channel Model

Yuanzineng kexue jishu, 2023
In order to realize the power supply of small nuclear reactors in remote areas, the sub-channel analysis program BRESA of supercritical carbon dioxide (S-CO2) fuel assembly based on Modelica language was developed in this paper.
GUO Jia;ZHAO Fulong;NING Kewei;FANG Huawei;YI Jingwei;TIAN Ruifeng;TAN Sichao
doaj  

Outage Analysis of Device-to-Device Communication System

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2018
In this paper, we analyze the outage performance of Device-to-Device (D2D) communication system in the presence of co-channel interference (CCI). Gamma distribution is considered here to model the random channel gain powers of D2D communication system ...
Z. Hussain, A. R. Khan, H. Mehdi, S. M. A. Saleem   +3 more
doaj   +1 more source

3-D Channel Characteristics for Molecular Communications with an Absorbing Receiver [PDF]

, 2014
H. Birkan Yilmaz, Akif Cem Heren, Tuna Tuğcu, Chan‐Byoung Chae   +3 more
openalex   +1 more source

A Novel Azimuth Channel Errors Estimation Algorithm Based on Characteristic Clusters Statistical Treatment

Remote Sensing
Azimuth multi-channel techniques show great promise in high-resolution, wide-swath synthetic aperture radar systems. However, in practical engineering applications, errors between channels can significantly affect the reconstruction of multi-channel echo
Wensen Yang, Ran Tao, Hao Huan, Jing Feng, Longyong Chen, Yihao Xu, Junhua Yang   +6 more
doaj   +1 more source

Calcium handling by vascular myocytes in hypertension

Brazilian Journal of Medical and Biological Research, 1997
Calcium ions (Ca2+) trigger the contraction of vascular myocytes and the level of free intracellular Ca2+ within the myocyte is precisely regulated by sequestration and extrusion mechanisms. Extensive evidence indicates that a defect in the regulation of
R.C.A. Tostes, D.W. Wilde, L.M. Bendhack, R.C. Webb   +3 more
doaj   +1 more source

RIS-assisted wireless communications: prototype validation and measurement progress

Dianxin kexue
In recent years, reconfigurable intelligent surface (RIS) is regarded as one of the promising technologies for 6G because of low power consumption, low cost and the ability to improve communication transmission rate.
YANG Chenhong, SANG Jian, LI Xiao, TANG Wankai, JIN Shi   +4 more
doaj   +2 more sources

Channel compensation of speaker identification based on maximum a posteriori

Tongxin xuebao, 2009
To solve the effect of channel changes on the performance of speaker identification system , apply the method of maximum a posteriori to specific channel compensation.First, setup a standard channel, then, use the distribution of deviation of other ...
GAO Rong-chun, HAN Ji-qing, ZHANG Lei
doaj   +2 more sources

Study on finishing characteristics with free abrasive grains and cooling performance of channels with various cross-sectional shapes

, 2021
Kotaro Kushima, Tatsuaki FURUMOTO, Mitsugu Yamaguchi, Shuuji Inagaki, Masao Tsuji   +4 more
openalex   +1 more source

Noise characteristics of the AVHRR infrared channels

International Journal of Remote Sensing, 1989
Abstract Limitations on the precision of digitized data are identified and discussed. Apart from calibration errors, these sources of uncertainty can be divided into three types of noise; digitization, Gaussian and periodic, each of which behaves differently when data is averaged.
openaire   +1 more source