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Toward better understanding vacuum ultraviolet–iodide induced photolysis via hydrogen peroxide formation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-021-1489-0

Abstract:

• UV/VUV/I^– induces substantial H₂O₂ and IO₃^– formation, but UV/I^– does not.

Keywords： Vacuum ultraviolet Hydrogen peroxide Iodate Hydroxyl radical Redox transition

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Advances in deep ultraviolet laser based high-resolution photoemission spectroscopy Review Articles

Zu-yan XU, Shen-jin ZHANG, Xing-jiang ZHOU, Feng-feng ZHANG, Feng YANG, Zhi-min WANG, Nan ZONG, Guo-dong LIU, Lin ZHAO, Li YU, Chuang-tian CHEN, Xiao-yang WANG, Qin-jun PENG

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 7, Pages 885-913 doi: 10.1631/FITEE.1800744

Abstract:

We briefly review recent results on photoemission spectroscopy based on the deep and vacuum ultravioletCascaded second harmonic generation with the nonlinear crystal KBe2BO3F2 (KBBF) is used to generate deepultraviolet and vacuum ultraviolet laser radiation, which complements traditional incoherent light sourcesThese laser systems have revived the field of photoemission spectroscopy and provided a new platform

Keywords： Deep and vacuum ultraviolet laser Second harmonic generation KBe2BO3F2 nonlinear crystal Photoelectron

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Development Strategy of Free Electron Laser Technology in China

Li Peng, Li Ming, Wu Dai, Zhou Zheng, Tang Chun

Strategic Study of CAE 2020, Volume 22, Issue 3, Pages 35-41 doi: 10.15302/J-SSCAE-2020.03.006

Abstract:

Free electron laser (FEL) is a large-scale scientific research deviceChina should focus on making breakthroughs in long-wave FEL, X-ray FEL, new FEL, and FEL-based extreme ultraviolet

Keywords： free electron laser infrared-terabertz FEL extreme ultraviolet-FEL X-ray FEL

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Ultraviolet exposure enhanced silicon direct bonding

Guanglan LIAO, Xuekun ZHANG, Xiaohui LIN, Canghai MA, Lei NIE, Tielin SHI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1, Pages 87-92 doi: 10.1007/s11465-009-0078-x

Abstract: Ultraviolet (UV) exposure, as an additional technique following the traditional wet chemical activation

Keywords： ultraviolet (UV) exposure silicon direct bonding bonding strength reliability

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Lateral displacement of soft ground under vacuum pressure and surcharge load

Chin-Yee ONG, Jin-Chun CHAI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2, Pages 239-248 doi: 10.1007/s11709-011-0110-1

Abstract: Surcharge load (e.g. embankment fill) will induce settlement and outward lateral displacement, while vacuumIdeally, combination of surcharge load and vacuum pressure can reduce or minimize the lateral displacementthe main influencing factors on lateral displacement of a soft clayey ground under the combination of vacuumthat the outward lateral displacement increases with the increase of the ratio of surcharge load to vacuumTo predict the lateral displacement of a ground under the combination of surcharge load and vacuum pressure

Keywords： vacuum consolidation lateral displacement PVD finite element analysis surcharge load

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Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers

Dongqiang LEI, Yucong REN, Zhifeng WANG

Frontiers in Energy 2022, Volume 16, Issue 6, Pages 1048-1059 doi: 10.1007/s11708-020-0670-7

Abstract: Parabolic trough receiver is a key component to convert solar energy into thermal energy in the parabolic trough solar system. The heat loss of the receiver has an important influence on the thermal efficiency and the operating cost of the power station. In this paper, conduction and radiation heat losses are analyzed respectively to identify the heat loss mechanism of the receiver. A 2-D heat transfer model is established by using the direct simulation Monte Carlo method for rarefied gas flow and heat transfer within the annulus of the receiver to predict the conduction heat loss caused by residual gases. The numerical results conform to the experimental results, and show the temperature of the glass envelope and heat loss for various conditions in detail. The effects of annulus pressure, gas species, temperature of heat transfer fluid, and annulus size on the conduction and radiation heat losses are systematically analyzed. Besides, the main factors that cause heat loss are analyzed, providing a theoretical basis for guiding the improvement of receiver, as well as the operation and maintenance strategy to reduce heat loss.

Keywords： parabolic trough receiver vacuum annulus rarefied gas DSMC (direct simulation Monte Carlo) heat loss

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interconnected nano-channels into polyvinylidene fluoride membranes for desalination applications by vacuum

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9, Pages 1162-1182 doi: 10.1007/s11705-022-2276-6

Abstract: to fabricate lycopodium/polyvinylidene fluoride flat-sheet membrane for desalination applications by vacuumIn vacuum membrane distillation experiments, using a 15000 ppm NaCl solution as a feed at 70 °C, the

Keywords： lycopodium hydrophobicity vacuum membrane distillation desalination

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Patterned wafer bonding using ultraviolet adhesive

Rui ZHUO, Guanglan LIAO, Wenliang LIU, Lei NIE, Tielin SHI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2, Pages 214-218 doi: 10.1007/s11465-011-0130-5

Abstract:

The process of patterned wafer bonding using ultraviolet (UV) adhesive as the intermediate layer was

Keywords： ultraviolet (UV) adhesive intermediate layer patterned wafer bonding

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Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Frontiers in Energy 2015, Volume 9, Issue 2, Pages 142-147 doi: 10.1007/s11708-015-0357-7

Abstract: The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing (VIT), indicatedTo solve this problem, some measures by using non-vacuum materials were proposed and analyzed in this

Keywords： vacuum insulated tubing cyclic steam stimulation insulation material thermal conductivity foam-glass

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Effects of design parameters on performance and cost analysis of combined ultraviolet-biofilter systems

Can WANG, Jinying XI, Hongying HU, Insun KANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4, Pages 588-594 doi: 10.1007/s11783-012-0433-8

Abstract: A conceptual mathematical model was used to evaluate the design parameters of a combined ultraviolet

Keywords： volatile organic compounds ultraviolet (UV) photodegradation biofilter modeling cost analysis

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Effect of ultraviolet irradiation and chlorination on ampicillin-resistant

Yuchen PANG,Jingjing HUANG,Jinying XI,Hongying HU,Yun ZHU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3, Pages 522-530 doi: 10.1007/s11783-015-0779-9

Abstract: in ampicillin resistance for ( ) CGMCC 1.1595 were analyzed after exposure to different doses of ultraviolet

Keywords： antibiotic resistance Escherichia coli ampicillin resistance gene ultraviolet irradiation chlorination

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Research on fuzzy neural network control method for high-frequency vacuum drying of wood

Jiang Bin,Sun Liping,Cao Jun and Zhou Zheng

Strategic Study of CAE 2014, Volume 16, Issue 4, Pages 17-20

Abstract:

High- frequency vacuum combined wood drying is a kind of fast dryingOn the basis of theoretical analysis with high frequency in wood vacuum drying process，the fuzzy controller

Keywords： high-frequency vacuum wood drying fuzzy neural network

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Experimental study on the temperature dependence of ultraviolet absorption cross-sections of sulfur dioxide

ZHANG Shiliang, ZHOU Jie, CHEN Xiaohu

Frontiers in Energy 2008, Volume 2, Issue 2, Pages 183-186 doi: 10.1007/s11708-008-0025-2

Abstract: The photoabsorption cross-sections of sulfur dioxide were measured in the spectral regions of 200–230 nm and 275–315 nm at 298–415 K, using a grating monochromator with a resolution of 0.2 nm. The discrete absorption cross-section is directly correlated with the number of quantum excited from the base state. The absorption cross-sections at the peaks of discrete bands decreased linearly with the increase of temperature, which corresponded to the decrease in the population of vibrational and rotational transitions from the base level to higher excitation levels. The absorption cross-section peaks decreased linearly when the temperature increased from 298 to 415 K, with relative drops of 74.0% and 75.8% at 200–230 nm and 275–315 nm, respectively. Another distinctive feature of sulfur dioxide absorption spectra in the above two spectral regions was the quasiperiodic structure of the absorption peaks, whose equal wavelength intervals were 1.53 nm and 1.95 nm, respectively. Red and blue shifts were not found at the absorption peak positions.

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Development of Laser Cutting and Joining Processing

Chen Li, Gong Shuili, He Enguang

Strategic Study of CAE 2020, Volume 22, Issue 3, Pages 78-84 doi: 10.15302/J-SSCAE-2020.03.012

Abstract:

Laser cutting and joining technology is indispensable as an advancedbe surely promoted by the integration of laser technology and digital manufacturing technology.joining and cutting technology, namely, laser welding, laser cutting, laser drilling, and laser markingThe problems faced by the development of the laser joining and cutting technology are discussed.unit, laser materials processing, and intelligent integration.

Keywords： laser material processing laser welding laser cutting laser drilling laser marking

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Evaluation of a typical plateau deep lake by DOM spectral characteristics

Tian Linfeng,Hu Jiwei,Li Cunxiong,Huang Xianfei,Xie Weifang

Strategic Study of CAE 2010, Volume 12, Issue 6, Pages 80-84

Abstract: Ultraviolet-visible (UVVIS) spectroscopy and fluorescence spectrophotometer are often used as an effectivecharacteristics of DOM were studied in water samples from different locations of the Hongfeng Lake, a man-made deep

Keywords： dissolved organic matter ultraviolet-visible spectral characteristics fluorescence spectroscopy correlations

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Title Author Date Type Operation

Toward better understanding vacuum ultraviolet–iodide induced photolysis via hydrogen peroxide formation

Journal Article

Advances in deep ultraviolet laser based high-resolution photoemission spectroscopy

Zu-yan XU, Shen-jin ZHANG, Xing-jiang ZHOU, Feng-feng ZHANG, Feng YANG, Zhi-min WANG, Nan ZONG, Guo-dong LIU, Lin ZHAO, Li YU, Chuang-tian CHEN, Xiao-yang WANG, Qin-jun PENG

Journal Article

Development Strategy of Free Electron Laser Technology in China

Li Peng, Li Ming, Wu Dai, Zhou Zheng, Tang Chun

Journal Article

Ultraviolet exposure enhanced silicon direct bonding

Guanglan LIAO, Xuekun ZHANG, Xiaohui LIN, Canghai MA, Lei NIE, Tielin SHI,

Journal Article

Lateral displacement of soft ground under vacuum pressure and surcharge load

Chin-Yee ONG, Jin-Chun CHAI

Journal Article

Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers

Dongqiang LEI, Yucong REN, Zhifeng WANG