Article
Chemistry, Physical
Hongkai Zhang, Jie Huang, Desong Fan
Summary: Maintaining indoor temperature is crucial for modern buildings, but traditional radiative cooling systems fail to prevent heat loss in cold weather. Therefore, we propose a switchable radiative cooler design that can dissipate heat in hot weather and retain indoor heat in cold weather. Theoretical and experimental results demonstrate that this design can effectively regulate the indoor temperature of a building model, providing thermal comfort.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Physics, Multidisciplinary
Alexander Pukhov, Anton Golovanov, Igor Kostyukov
Summary: Electrostatic plasma wakefields radiate efficiently at harmonics of the plasma frequency when the plasma has a positive density gradient along the propagation direction of a driver. The wake can potentially serve as an efficient, narrow-band, and tunable source of terahertz radiation, emitting well-defined harmonics of the plasma frequency in the terahertz band.
PHYSICAL REVIEW LETTERS
(2021)
Article
Engineering, Environmental
Usman H. Dahiru, Faisal Saleem, Farah Talib Al-sudani, Kui Zhang, Adam P. Harvey
Summary: This study investigated the effects of power, carrier gases, and moisture content on the removal of benzene in a plasma reactor. It was found that benzene removal efficiency increased with power, and CO2 selectivity also increased in humidified air. Solid residue formation in the reactor could be eliminated in humidified air.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Optics
Yizhu Zhang, Zhi-Hong Jiao, Tao He, Jingjing Zhao, Xingwang Fan, Taotao Chen, Guo-Li Wang, Tian-Min Yan, Xiao-Xin Zhou, Yuhai Jiang
Summary: A new method is proposed to enhance THz performance in the two-color scheme by separating the foci of two-color beams along the propagation axis to generate cascading plasmas, resulting in significantly improved THz conversion efficiency and bandwidth.
Article
Chemistry, Physical
Bangzheng Wei, Ruizhi Chen, Dang Xu, Gemin Li, Guang Yang, Bing Wang, Pengqi Chen, Qiu Xu, Jigui Cheng
Summary: In this paper, three different W/W-Cu joints were prepared and their microstructure, properties evolution, and damage behavior under thermal shock were studied. It was found that joint 1 and joint 2 exhibited obvious cracks after thermal shock, while joint 3 showed no obvious cracks. Joint 2 had the highest initial shear strength, while joint 3 had the highest residual shear strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nuclear Science & Technology
Bangzheng Wei, Rui Zhou, Dang Xu, Ruizhi Chen, Xinxi Yu, Pengqi Chen, Jigui Cheng
Summary: The thermal stress between W plasma-facing material and Cu heat sink in fusion reactors can be significantly reduced by using a W-Cu functionally graded material interlayer. In this study, W skeletons with continuous gradients in porosity were fabricated, and a W-Cu FGM with composition distribution from pure W to W-20.5wt.% Cu was successfully obtained. The prepared W-Cu FGM may provide a good solution to alleviate the thermal stress in fusion reactors.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yeonghoon Jin, Youngjae Jeong, Kyoungsik Yu
Summary: Passive multilayer coatings for windows can improve energy consumption for indoor temperature regulation by blocking solar IR energy and maintaining visible light transparency, as well as efficiently radiating thermal energy to lower the interior temperature.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Laura Kim, Seyoon Kim, Pankaj K. Jha, Victor W. Brar, Harry A. Atwater
Summary: The discovery of a previously unknown hot plasmon emission pathway in graphene has led to Fermi-level-dependent mid-infrared radiation. Experimental evidence shows that this emission process can be significantly brighter than conventional emission mechanisms, pointing towards new possibilities for future research.
Article
Nanoscience & Nanotechnology
Yongjian Zhang, Ziyang Wang, Ning Li, Zhanxun Che, Xiaoyan Liu, Guo Chang, Jinpeng Hao, Jingjie Dai, Xitao Wang, Fangyuan Sun, Hailong Zhang
Summary: Manipulating the interfacial structure is crucial for enhancing the interfacial thermal conductance in Cu/diamond composites. This study investigates the interfacial thermal conductance between Cu and diamond with an interconnected interlayer and explores the relationship between interfacial structure and conductance. Experimental measurements and molecular dynamics simulations are conducted to analyze the effects of different interlayers on thermal conductance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Multidisciplinary
Lijun Cao, Chao Hou, Fawei Tang, Shuhua Liang, Junhua Luan, Zengbao Jiao, Chao Liu, Xiaoyan Song, Zuoren Nie
Summary: The improvement of high-temperature mechanical properties of W-Cu based composites was achieved through the combined effects of solid solution, dispersed nano-precipitation, and highly stabilized nanostructure in the W-Cu-Cr-ZrC composite. The high thermal stability of the nanostructure endowed the composite with a compressive strength of 1150 MPa at 900 degrees C, approximately four times higher than that of the binary coarse-grained W-Cu composite. The crucial role of microstructural stability of the W phase skeleton in the overall strength of the W-Cu based composites was revealed.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Giacomo Lorenzin, Md Shafkat Bin Hoque, Daniel Ariosa, Lars P. H. Jeurgens, Eric R. Hoglund, John A. Tomko, Patrick E. Hopkins, Claudia C. Cancellieri
Summary: The internal stress and microstructure in nanomultilayers have a significant impact on their performance and thermal stability. The stress state and microstructure can be controlled by adjusting the deposition parameters. The study reveals the correlations between stress state, microstructure, thermal stability and thermal conductivity in Cu/W nanomultilayers.
Article
Chemistry, Multidisciplinary
Jin-Woo Cho, Yun-Jo Lee, Jae-Hyun Kim, Run Hu, Eungkyu Lee, Sun-Kyung Kim
Summary: The use of nanophotonics has allowed for the regulation of thermal emission in both the momentum and frequency domains. This study presents the discovery of broadbanded, polarization-irrelevant, amplified directional thermal emission from hollow microcavities covered with deep-subwavelength-thickness oxide shells. The findings suggest potential applications in providing thermal comfort and cooling performance for optoelectronic devices.
Article
Astronomy & Astrophysics
Soren Schlichting, Ismail Soudi
Summary: We study the momentum broadening kernel in high-temperature QCD plasmas using a recent nonperturbative determination and compare it with perturbative determinations and various approximations in the literature.
Article
Construction & Building Technology
Yalin Lu, Jiankai Dong, Hongyong Lu, Dun Niu, Sheng Zhang, Zhaosong Fang, Zhang Lin
Summary: This study proposes a new type of radiant-convective room air conditioner and evaluates its effectiveness for providing thermal comfort under heating mode. The results show that the proposed room air conditioner can increase heat output, improve air distribution, and effectively enhance thermal comfort.
ENERGY AND BUILDINGS
(2022)
Article
Engineering, Multidisciplinary
R. Friedl, C. Froehler-Bachus, U. Fantz
Summary: A flexible device based on a photodiode and optical filters is developed for VUV spectroscopy. The device is characterized against a VUV spectrometer and can provide energy-resolved absolute VUV flux measurements up to photon energies of 27 eV. The photon energy distribution is found to vary drastically with external parameters, highlighting the need for high energy resolution in VUV flux detection.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Article
Physics, Applied
P. Kloc, V. Aubrecht, M. Bartlova, O. Coufal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2015)
Article
Physics, Applied
J. Jenista, H. Takana, S. Uehara, H. Nishiyama, M. Bartlova, V. Aubrecht, A. B. Murphy
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Nadezhda Bogatyreva, Milada Bartlova, Vladimir Aubrecht, Vladimir Holcman
Article
Microscopy
Alexandr Knapek, Josef Sikula, Milada Bartlova
Article
Optics
Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Anthony B. Murphy
EUROPEAN PHYSICAL JOURNAL D
(2020)
Article
Physics, Applied
Jiri Jenista, Shiu-Wu Chau, Sheng-Wei Chien, Oldrich Zivny, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Anthony B. Murphy
Summary: This study introduces a numerical model of a new hybrid-stabilized argon-steam thermal DC plasma torch for efficient abatement of persistent perfluorinated compounds. The results show that the design parameters of the torch significantly affect the characteristics of the plasma jet.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Chemical
Petr Kloc, Vladimir Aubrecht, Milada Bartlova, Roman Fuchs
Summary: Mean Absorption Coefficients (MACs) offer a suitable method for calculating radiation transfer in complex geometries, reducing computation power and time requirements. This study evaluates the accuracy of three different MAC methods in various pressure conditions, suggesting the hybrid MAC method as the most universal option for radiation evaluation.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2023)
Article
Physics, Nuclear
A. Murmantsev, A. Veklich, V Boretskij, M. Bartlova, L. Dostal, J. Piska, D. Simek, A. Tolochyn
Summary: The study investigates the impact of sintering temperature on erosion resistance of Cu-Cr composite electrodes by analyzing plasma parameters through OES investigation of electric arc discharges. Metal vapours content in the discharge gaps was indirectly determined by estimating it in assumption of LTE, based on experimentally obtained radial distributions of plasma temperature and electron density.
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY
(2021)
Article
Physics, Nuclear
A. Murmantsev, A. Veklich, V Boretskij, M. Bartlova, L. Dostal, J. Piska, D. Simek, A. Gajdos, A. Tolochyn
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY
(2020)
Article
Physics, Applied
P. Kloc, V. Aubrecht, M. Bartlova
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2017)
Proceedings Paper
Engineering, Industrial
Bohuslav Busov, Jan Zidek, Milada Bartlova
STRUCTURED INNOVATION WITH TRIZ IN SCIENCE AND INDUSTRY: CREATING VALUE FOR CUSTOMERS AND SOCIETY
(2016)