Results 141 to 150 of about 56,164 (284)
Pilot Contamination in Massive MIMO Systems: Challenges and Future Prospects
Massive multiple input multiple output (M-MIMO) technology plays a pivotal role in fifth-generation (5G) and beyond communication systems, offering a wide range of benefits, from increased spectral efficiency (SE) to enhanced energy efficiency and higher
Ahmed, Shakil +2 more
core +1 more source
Advanced Science, EarlyView.High‐throughput single‐cell analysis of resuscitating bacteria reveals a starvation‐history‐dependent transiently tolerant subpopulation that survives β$\beta$‐lactam exposure by temporarily reducing growth. Distinct from classical persisters, these actively growing yet dynamically modulated cells dominate survival across clinically relevant antibiotic
Kieran Abbott +5 more
wiley +1 more source
PTS Based Pilot Assignment for Channel Estimation in CM Reduction of OFDM Signals
, 2012 [[abstract]]在正交分頻多工系統為了避免過高的峰均功率比造成的非線性效應，我們可以應用部分傳輸序列的技巧來降低峰均功率比。然而近來許多文獻提出峰均功率比是不足以評估功率回退的性能。相反的立方度量才可以更好的表示功率回退的性能。 對於常見的部分傳輸序列技術需要傳送旁資訊到接收端才能將原始訊號還原。在此，我們利用通道估測與部分傳輸序列技術來處理這個問題。這種方法利用導引訊號指派應用於通道估測在沒有旁資訊的情形下來恢復正交分頻多工系統的訊號。這導引訊號指派可以分成兩類型 ...
Jiang Ming-yen, 江明諺
core
Mapping the “Supply–Demand–Flow” of Ecosystem Services for Ecosystem Management in China
Advanced Science, EarlyView.This study develops a “supply–demand–flow” framework clarifies how ecosystem services move between regions by distinguishing potential and actual supply and demand. Using integrated biophysical–socioeconomic modeling, nine services in China were mapped.
Yikun Zhang +3 more
wiley +1 more source
Advanced Science, EarlyView.This study establishes [68Ga]Ga‐DOTA‐AP9 as a first‐in‐human CD147‐targeted PET tracer with favorable safety and specific tumor uptake. Tracer accumulation correlates with CD147 expression in patients, enabling noninvasive quantification of CD147‐positive malignancies.
Xiaokun Ma +10 more
wiley +1 more source
Advanced Science, EarlyView.Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang +6 more
wiley +1 more source
Personalized Network‐Guided Neuromodulation Enhances Human Working Memory
Advanced Science, EarlyView.A personalized neuromodulation framework combining individualized functional brain network targeting with real‐time neural decoding is introduced. Using concurrent TMS–fMRI, participant‐specific stimulation targets and optimal frequencies are identified. Only optimal‐frequency stimulation improves working memory across sessions.
Ahsan Khan +13 more
wiley +1 more source
Pilot Contamination and Channel Estimation In Massive MIMO Systems
5G lays the foundation for an era of creativity by utilizing Massive multiple input multiple output(MIMO) technology, enabling faster speeds, increased spectral efficiency, reduced latency, and enhanced connectivity.
Saeed, Muhammad Kamran
core +1 more source
Advanced Science, EarlyView.We developed a nanoparticle named OAF, which simultaneously targeted to both the brain and liver via the transferrin receptor 1 (TfR1) receptor, promoting lipoprotein receptor‐related protein 1 (LRP1) expression to enhance amyloid‐beta (Aβ) clearance. In AD mice model, OAF significantly reduced Aβ deposition and cognitive impairment, while a mitigating
Wenshuai Gong +8 more
wiley +1 more source