Results 81 to 90 of about 263,020 (247)

拉远基站与系统设备的互联互通

Guangtongxin yanjiu, 2006
随着3G牌照发放日期的逐步临近,人们对第3代移动通信（3G）的认识也更加清晰。2G与3G将融合发展,平滑过渡。2G业务增长的数据显示,2G还有很大的发展空间,2G与3G的过渡将是一个长期的过程。3G将首先在一些热点地区、业务量大的地方优先使用,在开始的时候没有必要大规模铺网,只需采用一些拉远基站就可以解决这些地区的3G覆盖问题。文章从网络应用的角度论述了拉远基站在未来3G组网中的重要作用,分析了目前部署3G拉远基站可能存在的问题,对互联互通、站址和网管等问题的解决方法提出了建议。
余建国
doaj  

Discovery and Optimization of Ergosterol Peroxide Derivatives as Novel Glutaminase 1 Inhibitors for the Treatment of Triple-Negative Breast Cancer

Molecules
In this study, novel ergosterol peroxide (EP) derivatives were synthesized and evaluated to assess their antiproliferative activity against four human cancer cell lines (A549, HepG2, MCF-7, and MDA-MB-231).
Ran Luo, Haoyi Zhao, Siqi Deng, Jiale Wu, Haijun Wang, Xiaoshan Guo, Cuicui Han, Wenkang Ren, Yinglong Han, Jianwen Zhou, Yu Lin, Ming Bu   +11 more
doaj   +1 more source

Oral Dosed Organo‐Silica Nanoparticles Restore Glucose Homeostasis and β‐Cell Function in Diabetes Rats

Advanced Functional Materials, EarlyView.
An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu, Mingli Wei, Che Bian, Xiaoshuang Bi, Yaxin Deng, Peifu Xiao, Jiansong Zhao, Yuying Wang, Haibing He, Jingxin Gou, Tian Yin, Xing Tang, Li Yang, Hongbo Zhang, Yu Zhang   +14 more
wiley   +1 more source

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

Endothelial Cells Angiogenesis in Sulfated Glycosaminoglycan (GAG) Hydrogels Enhanced by Bioactive Glass‐Released Ions

Advanced Functional Materials, EarlyView.
A mechanically tunable hydrogel composed of gelatin, chondroitin sulfate and laminin promotes angiogenesis in vitro without the supplement of growth factors. Endothelial cells morphogenesis was further enhanced by medium conditioned with bioactive glass 58S‐released ions (Ca and Si), thus offering a promising strategy to vascularize 3D tissue ...
Marco Piazzoni, Ilaria Borghi, Francesca Cadamuro, Sophia Dalfino, Riccardo Campanile, Sofia Nizzolo, Valeria Cassina, Francesca Tallia, Julian R. Jones, Francesco Mantegazza, Sabrina Bertini, Lorenzo Moroni, Francesco Nicotra, Laura Russo   +13 more
wiley   +1 more source

Performance Analysis of 3G Communication Network

Journal of ICT Research and Applications, 2013
In this project, third generation (3G) technologies research had been carried out to design and optimization conditions for 3G network. The 3G wireless mobile communication networks are growing at an ever faster rate, and this is likely to continue in ...
Toni Anwar, Lim Wern Li
doaj  

Non‐targeted metabolomics for the identification of plasma metabolites associated with organic anion transporting polypeptide 1B1 function

Clinical and Translational Science
Our aim was to evaluate biomarkers for organic anion transporting polypeptide 1B1 (OATP1B1) function using a hypothesis‐free metabolomics approach. We analyzed fasting plasma samples from 356 healthy volunteers using non‐targeted metabolite profiling by ...
Kreetta Hämäläinen, Päivi Hirvensalo, Mikko Neuvonen, Aleksi Tornio, Janne T. Backman, Marko Lehtonen, Mikko Niemi   +6 more
doaj   +1 more source

Controlled Movement of Soft Actuators using Multi‐Responsive Microgel Arrays and Microcirculatory Systems

Advanced Functional Materials, EarlyView.
Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang, Brennan P. Watts, Stephen A. Morin   +2 more
wiley   +1 more source

Best Known Fast Correlation Attack on SNOW 3G Based on a New Insight

IET Information Security
The well-known SNOW 3G stream cipher serves as the core of 3GPP confidentiality and integrity algorithms UEA 2 and UIA2 for universal mobile telecommunications system (UMTS) and long term evolution (LTE) networks. Recently, Gong and Zhang gave two linear
Xinhai Wang, Lin Ding, Jiang Wan, Zhengting Li, Zheng Wu   +4 more
doaj   +1 more source

Structure–Transport–Ion Retention Coupling for Enhanced Nonvolatile Artificial Synapses

Advanced Functional Materials, EarlyView.
Nitrogen incorporation into the conjugated backbone of donor–acceptor polymers enables efficient charge transfer and deep ion embedding in organic electrochemical synaptic transistors (OESTs). This molecular‐level design enhances non‐volatile synaptic properties, providing a new strategy for developing high‐performance and reliable neuromorphic devices.
Donghwa Lee, Jinsung Kim, Sein Chung, Junho Sung, Chaeyeon Han, Eunho Lee   +5 more
wiley   +1 more source