Results 41 to 50 of about 2,112,118 (259)

Research on space focusing virtual coverage based on orthogonal frequency time reversal method

Tongxin xuebao, 2019
To solve the problem of information leakage and coverage efficiency in ultra-dense wireless network,the orthogonal frequency-time reversal virtual coverage scheme was proposed.At first,different wireless reversal channels with lower correlation were ...
Yifang NIE, Fangwei LI
doaj   +2 more sources

Research of frequency division starting method based on six-pulse-wave AC/AC frequency converter

Gong-kuang zidonghua, 2013
Based on analysis of six-pulse-wave AC/AC frequency converter and according to principle of dual-slope voltage soft starting method, a frequency division starting method based on six-pulse-wave AC/AC frequency converter was put forward.
LI Gao-ju, DU Qing-nan, GUO Hong-liang, LIANG Jing   +3 more
doaj  

Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari, Regina Hadi Putri, Fatimah Assyifa, Judith Spijkerman, Gertjan Johannes Kaspers, Susi Susanah   +5 more
wiley   +1 more source

Venetoclax‐Based Therapy as a Bridge to Hematopoietic Stem Cell Transplantation in Relapsed or Refractory Pediatric Acute Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Relapsed and/or refractory (R/R) pediatric acute leukemia carries a dismal prognosis, largely driven by chemoresistance to conventional salvage therapy. The BH3‐mimetic venetoclax, combined with chemotherapy or hypomethylating agents, has demonstrated efficacy in small clinical trials.
Katherine S. Colman, Deborah Meyran, Vajiranee Malalasekera, Heather Weerdenburg, Janine Campbell, Rachel Conyers, Stacie Wang, Hannah Walker, Seong Lin Khaw, Diane Hanna   +9 more
wiley   +1 more source

Research on load frequency control system attack detection method based on multi-model fusion

Energy Informatics
Load frequency control (LFC) in power systems faces increasingly complex cyber-physical attack threats, while existing detection methods have limited capability to identify intelligent attacks.
Feng Zheng, Weixun Li, Huifeng Li, Libo Yang, Zengjie Sun   +4 more
doaj   +1 more source

Research on the method for control of three-phase unbalanced load based on variable frequency power

Dianzi Jishu Yingyong, 2019
A method for control of three-phase unbalanced load based on variable frequency power was proposed in this paper. The general idea was introduced firstly, and then the implementation of the scheme and the design method of variable frequency power supply ...
Wei Na, Zhao Ergang, Li Yadong, Yu Mei, Li Chunming, Zhang Jianjun   +5 more
doaj   +1 more source

Language, Culture, and Cancer: Qualitative Insights Into Communication Disparities Among Spanish‐Speaking Caregivers of Children With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Latino children are projected to make up nearly one‐third of United States (US) children by 2060, and many of their caregivers speak Spanish. Prior survey research has documented communication difficulties for Spanish‐speaking caregivers of children with cancer, but contemporary qualitative data are limited.
Jenny Ruiz, Alejandra Curbelo‐Paz, Sonia Morales, Elizabeth Contreras, Amy Houtrow, Scott H. Maurer, Judy C. Chang   +6 more
wiley   +1 more source

Research on primary frequency regulation and VSC-HVDC frequency synchronization control coordination method for large-scale hydropower DC export regional grid

International Journal of Electrical Power & Energy Systems
In asynchronous grid connection mode, the rotational inertia of the partitioned synchronized grid decreases, leading to prominent frequency stability issues.
Hongchun Shu, Huaibin Gao, Zongxue Shao, Yongzan Cui, Wei Zhao   +4 more
doaj   +1 more source

Bone Mineral Density After Contemporary Treatment for Acute Lymphoblastic Leukaemia: A Matched Cross‐Sectional Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen, Mette Tiedemann Skipper, Niels Holtum Birkebæk, Kjeld Schmiegelow, Thomas Leth Frandsen, Bente Langdahl, Rikke Beck Jensen, Asger Roer Pedersen, Christian Mølgaard, Liv Andrés‐Jensen, Birgitte Klug Albertsen   +10 more
wiley   +1 more source

High accuracy humidity measurements using the standardized frequency method with a research upper-air sounding system

Meteorologische Zeitschrift, 2001
Water vapour is the most important greenhouse gas in the atmosphere. The knowledge of water vapour distribution is of great importance for both operational purposes and climatological investigations.
Dagmar Nagel, Ulrich Leiterer, Horst Dier, Alexander Kats, Jens Reichardt, Andreas Behrendt   +5 more
doaj   +1 more source