Results 81 to 90 of about 53,530 (277)

Effective Penetration of the Oxidized Keratin‐Rebonding Materials Into Hair Shafts Based on Charge Conversion

Advanced Healthcare Materials, EarlyView.
We have developed a smart hair‐repair ingredient based on β‐carboxylic acid amide that undergoes negative‐to‐positive charge conversion under mildly acidic conditions. The initial negative charge facilitates deep penetration into the hair fiber, while the subsequent positive charge enables re‐bonding with sulfonate groups in damaged hair keratin.
Sunyoung Kang, Serena Serin Park, Sugyeong Jeong, Seoyeon Kyung, Minjae Kim, Seok Kyun Yun, Hyun‐Na Kim, Seunghyun Kang, Yan Lee   +8 more
wiley   +1 more source

Triazine‐Trione Thermosets with High Processability for Scaffold Applications in Bone Tissue Engineering

Advanced Healthcare Materials, EarlyView.
Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen, Shuntaro Yamada, Daniel J. Hutchinson, Mohammed A. Yassin, Samih Mohamed‐Ahmed, Cecilie Gjerde, Michael Malkoch, Kamal Mustafa   +7 more
wiley   +1 more source

Sub-Nyquist Sampling: Bridging Theory and Practice [PDF]

, 2011
Sampling theory encompasses all aspects related to the conversion of continuous-time signals to discrete streams of numbers. The famous Shannon-Nyquist theorem has become a landmark in the development of digital signal processing. In modern applications,
Eldar, Yonina C., Mishali, Moshe
core   +1 more source

Optimized Performance Evaluation of LTE Hard Handover Algorithm with Average RSRP Constraint

, 2011
Hard handover mechanism is adopted to be used in 3GPP Long Term Evolution (3GPP LTE) in order to reduce the complexity of the LTE network architecture. This mechanism comes with degradation in system throughput as well as a higher system delay.
Basukala, Riyaj, Lin, Cheng-Chung, Ramli, Huda Adibah Mohd, Sandrasegaran, Kumbesan   +3 more
core   +1 more source

Kidney Organoids in Drug Development: Integrating Technological Advances and Standardization for Effective Implementation

Advanced Healthcare Materials, EarlyView.
This review examines how emerging enabling technologies enhance the physiological relevance, scalability, and reproducibility of kidney organoids, while advanced analytical approaches support model validation and deepen mechanistic insight into nephrotoxicity.
Helen Kearney, Silvia M. Mihăilă, Lorenzo Moroni, Carlos Mota   +3 more
wiley   +1 more source

Injectable Stimuli‐Responsive Amphiphilic Hydrogel for Rapid Hemostasis, Robust Tissue Adhesion, and Controlled Drug Delivery in Trauma and Surgical Care

Advanced Healthcare Materials, EarlyView.
Fast‐acting hydrogel seals bleeding wounds as the illustrated injectable, pH‐responsive network rapidly gels in situ to stop hemorrhage, adhere strongly to wet tissue, and release antibiotics in a controlled, pH‐dependent manner. The material withstands high pressures, shows excellent biocompatibility, and degrades safely, offering a versatile platform
Arvind K. Singh Chandel, Runali Patil, Abrar Ali Khan, Deeksha Pandit, Kaushik Chatterjee, Maurice N. Collins   +5 more
wiley   +1 more source

Scrambled UFMC and OFDM Techniques With APSK Modulation in 5G Networks Using Particle Swarm Optimization

IEEE Access
This research addresses the challenges of high Peak-to-Average Power Ratio (PAPR), sideband leakage, and spectrum efficiency in 5G wireless networks. We compare Universal Filtered Multi-Carrier (UFMC), Scrambled UFMC (S-UFMC), and Orthogonal Frequency ...
K. Krishna Kishore, Jami Venkata Suman, Madhavi Mallam, Mamidipaka Hema, Venkataramana Guntreddi   +4 more
doaj   +1 more source

Compressive channel estimation for universal filtered multi‐carrier system in high‐speed scenarios

IET Communications, 2017
Due to the high mobility of communication, channel times can vary rapidly and system performance can be decreased. In this study, pseudo‐random noise is used as the guard interval and the training sequence in the time domain in order to estimate the channel‐based compressive sensing scheme.
Rong Wang, Jingye Cai, Xiang Yu, Sirui Duan   +3 more
openaire   +1 more source

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

A Real-Time Millimeter-Wave Phased Array MIMO Channel Sounder

, 2017
In this paper, we present a novel real-time MIMO channel sounder for 28 GHz. Until now, the common practice to investigate the directional characteristics of millimeter-wave channels has been using a rotating horn antenna.
Bas, C. Umit, Henige, Thomas, Molisch, Andreas F., Monroe, Robert, Park, Jeongho, Psychoudakis, Dimitris, Wang, Rui, Zhang, Jianzhong   +7 more
core   +1 more source