Results 41 to 50 of about 401 (227)

Modeling of spreading of the melted corium jet inside the pool of emergency heat removal during severe accidents at NPP [PDF]

Ядерна фізика та енергетика, 2012
Important nuclear power safety problem in touch with modeling of melted corium jet spreading inside the coolant pool is considered in the paper. It appears by development of the passive protection systems against se-vere accidents.
I. V. Kazachkov, O. V. Konoval
doaj  

Possible in-vessel corium progression way in the Unit 1 of Fukushima Dai-ichi nuclear power plant using a phenomenological analysis

EPJ Nuclear Sciences & Technologies, 2015
In the field of severe accident, the description of corium progression events is mainly carried out by using integral calculation codes. However, these tools are usually based on bounding assumptions because of high complexity of phenomena.
Payot Frédéric, Seiler Jean-Marie
doaj   +1 more source

Evaluation of heat-flux distribution at the inner and outer reactor vessel walls under the in-vessel retention through external reactor vessel cooling condition

Nuclear Engineering and Technology, 2015
Background: A numerical simulation was carried out to investigate the difference between internal and external heat-flux distributions at the reactor vessel wall under in-vessel retention through external reactor vessel cooling (IVR-ERVC). Methods: Total
Jaehoon Jung, Sang Mo An, Kwang Soon Ha, Hwan Yeol Kim   +3 more
doaj   +1 more source

Numerical Simulation and Validation for Early Core Degradation Phase under Severe Accidents

Science and Technology of Nuclear Installations, 2020
Early core degradation determines the amount of hydrogen generated by cladding oxidation as well as the temperature, the mass, and the composition of corium that further relocates into the lower head of reactor pressure vessel (RPV), which is essential ...
Dekui Zhan, Xinhai Zhao, Shaoxiong Xia, Peng Chen, Huandong Chen   +4 more
doaj   +1 more source

Biomimetic Macrophage Cell Membrane‐Based Nanoparticles for Effective Treatment of Glioblastoma Through Boron Neutron Capture Therapy Combined With Immunotherapy

Advanced Science, EarlyView.
ABSTRACT Glioblastoma multiforme (GBM) remains largely incurable due to the blood‐brain barrier (BBB) and immunosuppressive microenvironment. While boron neutron capture therapy (BNCT) selectively eradicates tumor cells via 10B(n, α)‐7Li reactions, its clinical potential in GBM is unrealized because of the suboptimal pharmacokinetics of conventional ...
Jiawen Chen, Haoyu You, Hefa Huang, Huihui Chai, Ruize Zhu, Yun Guan, Qisheng Tang, Tianwen Li, Shan Jiang, Houshi Xu, Peng Wang, Yue Wang, Maoyuan Sun, Beining Liu, Zhen Li, Yulai Zeng, Weiqiu Ping, Yanlin Teng, Songlin Yan, Qinghui Li, Long Gu, Tao Sun, Zhifeng Shi   +22 more
wiley   +1 more source

Problem of corium melt coolability in passive protection systems against severe accidents in the containment [PDF]

Ядерна фізика та енергетика, 2018
Paper is devoted to the development of the mathematical model and analysis of the problem of corium melt interaction with low-temperature melting blocks in the passive protection systems against severe accidents at the NPP, which is of high importance ...
Ali Kalvand, I. V. Kazachkov
doaj  

Mesoporous Catalytic‐Adsorptive Nanoregulator Orchestrates Biofilm eDNA/LPS Disassembly and TLR9/TLR4 Immune Reprogramming to Resolve Diabetic Foot Infections

Advanced Science, EarlyView.
Chronic diabetic wounds are hindered by a “dual trap” of biofilm resistance and hyperinflammation. A mesoporous catalytic‐adsorptive nano‐regulator is developed to dismantle this barrier through simultaneous eDNA degradation and LPS sequestration. By silencing TLR4/9‐mediated signaling, the platform clears resilient pathogens and reprograms the immune ...
Junfeng Song, Yang Song, Xirui Huang, Xingjin Li, Lifei Gao, Yixiang Wang, Tianbao Zhu, Xiaomin Li, Shuai Wang, Tiancong Zhao, Dongyuan Zhao   +10 more
wiley   +1 more source

Longitudinal Single‐Axon‐Resolution Imaging of Peripheral Nerve Injury Response in Mice Using an Optical Window Implant

Advanced Science, EarlyView.
A minimally invasive optical window enables stable, long‐term imaging of peripheral nerves in vivo at single‐axon resolution. Dynamic processes of degeneration, regeneration, and cellular remodeling are visualized across multiple time scales within the same nerve region, providing a unique platform to study a variety of anatomical and molecular events ...
Igor D. Luzhansky, Emma Anisman, Ron Perez, Sophia Zhang, Morgan Hoffman, Daniel Hunter, Abigail Cherian, Jevon Bonner, Emilia Feria, Ahmed Ahmed, Muneeb Malik, Junwei Du, Leland C. Sudlow, David M. Brogan, Matthew D. Wood, Mikhail Y. Berezin   +15 more
wiley   +1 more source

Nanodiamonds as Bioactive Platforms to Modulate Microbial, Mammalian, and Vertebrate Systems

Advanced NanoBiomed Research, EarlyView.
Nanodiamonds (NDs) are biocompatible and antibacterial nanomaterials that support mammalian cell growth while inhibiting bacterial pathogens. NDs showed strong antibacterial activity, with Escherichia coli being more sensitive than Staphylococcus aureus. At 10 mg/mL, both bacteria exhibited ~8% viability.
Aaqil Rifai, Ayushi Priyam, Ahmed Rashed, Gebreselassie Addisu Tilaye, Kamal Poudel, Aaron G. Schultz, Richard J. Williams   +6 more
wiley   +1 more source

Modelling of Severe Accident and In-Vessel Melt Retention Possibilities in BWR Type Reactor

Science and Technology of Nuclear Installations, 2018
One of the severe accident management strategies for nuclear reactors is the melted corium retention inside the reactor pressure vessel. The work presented in this article investigates the application of in-vessel retention (IVR) severe accident ...
Mindaugas Valinčius, Tadas Kaliatka, Algirdas Kaliatka, Eugenijus Ušpuras   +3 more
doaj   +1 more source