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Numerical simulation and experimental research on heat transfer and flow resistance characteristics ofasymmetric plate heat exchangers

Shaozhi ZHANG, Xiao NIU, Yang LI, Guangming CHEN, Xiangguo XU

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 267-282 doi: 10.1007/s11708-020-0662-7

Abstract: The asymmetric plate heat exchanger (APHE) has the possibility of achieving balanced pressure drops onboth hot and cold sides for situations with unbalanced flow, which may in turn enhance the heat transferIn this paper, the single-phase water flow and heat transfer of an APHE consisted of two types of platesSimulations are conducted to study the effects of , an asymmetric index proposed to describe the geometryIt is found that an optimal exists where the pressure drops are balanced and the heat transfer area

Keywords： plate heat exchanger     asymmetric     simulation     correlation     heat transfer enhancement    

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Asymmetric transfer hydrogenation of prochiral ketone catalyzed over Fe-CS/SBA-15 catalyst

XUE Ping, WU Tao

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 251-255 doi: 10.1007/s11705-007-0045-1

Abstract: The asymmetric transfer hydrogenations of prochiral acetophenone and 4-methyl-2-pentanone to correspondingwith 2.2% mass fraction Fe exhibits considerable enantioselectivity and catalytic activity for the asymmetrictransfer hydrogenations of aromatic ketone and aliphatic ketone.

Keywords： asymmetric transfer     enantioselectivity     Fe-CS/SBA-15     aliphatic     aromatic    

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Ensemble-transfer-learning-based channel parameter prediction in asymmetric massive MIMO systems Research Article

Zunwen HE, Yue LI, Yan ZHANG, Wancheng ZHANG, Kaien ZHANG, Liu GUO, Haiming WANG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 2,   Pages 275-288 doi: 10.1631/FITEE.2200169

Abstract: However, in the asymmetric massive MIMO system, reciprocity between the uplink (UL) and downlink (DL)In this paper we propose an ensemble-transfer-learning-based channel method for asymmetric massive MIMOAdditionally, the proposed instance-transfer-based method outperforms the method without transfer learning

Keywords： Asymmetric massive multiple-input multiple-output (MIMO) system     Channel model     Ensemble learning     Instancetransfer     Parameter prediction    

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Bifunctional Asymmetric Fabric with Tailored Thermal Conduction and Radiation for Personal Cooling and Article

Yucan Peng, Hiang Kwee Lee, David S. Wu, Yi Cui

Engineering 2022, Volume 10, Issue 3,   Pages 167-173 doi: 10.1016/j.eng.2021.04.016

Abstract: A bifunctional asymmetric fabric (BAF) offering both a cooling and a warming effect is demonstrated.

Keywords： Textiles     Personal thermal management     Bifunctional asymmetric fabric     Heat conduction     Radiative heattransfer    

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A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1208-1220 doi: 10.1007/s11705-023-2304-1

Abstract: Due to the resulting rational interfacial structure and stable ion-electron transport, the asymmetricThese properties are superior to other reported cases of asymmetric energy enrichment.

Keywords： molecular synergy     pseudocapacitive lignosulfonate     flexible electronic devices     asymmetric supercapacitor    

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Synthesis of iron(II) complexes with asymmetric N

Wolfgang Bauer, Tanja Ossiander, Birgit Weber

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 400-408 doi: 10.1007/s11705-018-1753-4

Abstract:

The synthesis of new Schiff base-like ligands with asymmetric substituents pattern and their iron

Keywords： iron     Schiff base-like ligands     magnetism     spin crossover     X-ray structures    

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Preparation of D-lysine by chemical reaction and microbial asymmetric transformation

LIU Yi, JIAO Qingcai, YIN Xiaoxing

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 40-43 doi: 10.1007/s11705-008-0023-2

Abstract: The DL-lysine crystals from the racemization of L-lysine was treated as substrate with AS1.1009 intact cells as biocatalysts to produce crystalline D-lysine with a yield of 56.6% from the reaction mixture after simple purification. In the presence of 0.10 molar equivalent of salicylaldehyde, L-lysine racemization can be completed within 4 h in 1.0 mol/L of NaOH at 100°C. The activation energy of the processes was 62187.86 J/mol. The characteristics of AS1.1009 decarboxylase were studied. Under the conditions of pH 8.0, temperature 37°C, cell concentration 10 g/L, tween-80 0.5 g/L, substrate concentration 30 g/L, and the specific activity of up to 3840 U, L-lysine can be completely degraded by the decarboxylase for 12 h under the optimal conditions.

Keywords： substrate     temperature     specific activity     presence     decarboxylase    

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Evaluation of a novel Asymmetric Genetic Algorithm to optimize the structural design of 3D regular and

Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1110-1130 doi: 10.1007/s11709-020-0643-2

Abstract: We propose a new algorithm, named Asymmetric Genetic Algorithm (AGA), for solving optimization problems

Keywords： optimization     steel frame     Asymmetric Genetic Algorithm     constraints of ultimate load     constraints of serviceability    

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Preparation and characterization of asymmetric ultrafiltration membrane for effective recovery of proteases

Nora’aini ALI, Fadhilati HASSAN, Sofiah HAMZAH

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 184-191 doi: 10.1007/s11705-012-1288-z

Abstract: Asymmetric polysulfone and polyethersulfone ultrafiltration (PSf-UF and PES-UF) membranes with three

Keywords： membrane     ultrafiltration     proteases     surimi wash water    

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Isolation of microbe for asymmetric reduction of prochiral aromatic ketone and its reaction characters

YANG Zhonghua, WANG Yu, WANG Guanghui, ZENG Rong, YAO Shanjing

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 416-420 doi: 10.1007/s11705-007-0076-7

Abstract: The favorable microbes for the asymmetric reduction of prochiral aromatic ketones was isolated from soilusing acetophenone as the sole carbon source, when the asymmetric reduction of acetophenone (ACP) toThe product of the asymmetric reduction of ACP catalyzed by was mainly R-PEA and that by was mainly

Keywords： excellent catalytic     prochiral aromatic     enantiomeric     -phenethyl     catalytic activity    

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Asymmetric deformation mechanism in deep soft rock tunnel and controlling countermeasures in Datun Mine

Fu Qingguo and Zou Chaoyang

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 102-106

Abstract: study the distribution of ground displacement field in surrounding rocks when the roadway shows the asymmetricThe results of theoretical study show that the asymmetric deformation is controlled by centralized stressThis research provides a preliminary theoretical basis for the controlling countermeasures of asymmetric

Keywords： deep     soft rock tunnel     asymmetric deformation     controlling countermeasures    

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Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing

Wang Yunlong,Tan Zhongsheng,Chen Ying

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 24-28

Abstract:

The ultra-small spacing tunnel of Jiaozhou Bay seabed tunnel in Qingdao is took for example; the surrounding rock pressure features and support force are analyzed through the field measurement. Results show that the surrounding rock pressure and support force of the after-excavation tunnel are larger than others of the tunnel. This result is different from the theoretical predictions and experimental results of most of the small spacing symmetry tunnel. To alleviate these problems effectively, support parameters are adjusted opportunely; the radial support capacity of the after-excavation tunnel is enhanced, and reinforcement measures of rock pillar are made at the same time. The monitoring results show that the stability of the after-construction tunnel has been effectively controlled, which provides useful reference for the design and construction of similar tunnels with small spacing.

Keywords： tunnel     ultra-small spacing     asymmetric     shallow-buried     field measurement    

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Direct energy rebound effect for road transportation in China

Frontiers of Engineering Management   Pages 597-611 doi: 10.1007/s42524-023-0276-y

Abstract: transportation, this study employed panel cointegration and panel error correction models, accounting for asymmetric

Keywords： road transportation     direct energy rebound effect     asymmetric price effects     panel data model    

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Research on construction optimization of asymmetric double arch section in Jiaozhou Bay Subsea Tunnel

Wang Kai,Zhang Chengping,Wang Mengshu

Strategic Study of CAE 2012, Volume 14, Issue 1,   Pages 90-97

Abstract:

Aiming at the asymmetric double-arch tunnel engineering that lies at

Keywords： subsea tunnel     asymmetric double arch tunnel     construction scheme optimization     construction sequence    

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Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 313-318 doi: 10.1007/s11708-009-0064-3

Abstract: experimental study was conducted to investigate the effects of acoustic cavitation on natural convective heat transferThe experimental results indicated that heat transfer could be enhanced by acoustic cavitation and had

Keywords： heat transfer enhancement     augmentation     acoustic cavitation     acoustic streaming     convective heat transfer    

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Title Author Date Type Operation

Numerical simulation and experimental research on heat transfer and flow resistance characteristics ofasymmetric plate heat exchangers

Shaozhi ZHANG, Xiao NIU, Yang LI, Guangming CHEN, Xiangguo XU

Journal Article

Asymmetric transfer hydrogenation of prochiral ketone catalyzed over Fe-CS/SBA-15 catalyst

XUE Ping, WU Tao

Journal Article

Ensemble-transfer-learning-based channel parameter prediction in asymmetric massive MIMO systems

Zunwen HE, Yue LI, Yan ZHANG, Wancheng ZHANG, Kaien ZHANG, Liu GUO, Haiming WANG

Journal Article

Bifunctional Asymmetric Fabric with Tailored Thermal Conduction and Radiation for Personal Cooling and

Yucan Peng, Hiang Kwee Lee, David S. Wu, Yi Cui

Journal Article

A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

Journal Article

Synthesis of iron(II) complexes with asymmetric N

Wolfgang Bauer, Tanja Ossiander, Birgit Weber

Journal Article

Preparation of D-lysine by chemical reaction and microbial asymmetric transformation

LIU Yi, JIAO Qingcai, YIN Xiaoxing

Journal Article

Evaluation of a novel Asymmetric Genetic Algorithm to optimize the structural design of 3D regular and

Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK

Journal Article

Preparation and characterization of asymmetric ultrafiltration membrane for effective recovery of proteases

Nora’aini ALI, Fadhilati HASSAN, Sofiah HAMZAH

Journal Article

Isolation of microbe for asymmetric reduction of prochiral aromatic ketone and its reaction characters

YANG Zhonghua, WANG Yu, WANG Guanghui, ZENG Rong, YAO Shanjing

Journal Article

Asymmetric deformation mechanism in deep soft rock tunnel and controlling countermeasures in Datun Mine

Fu Qingguo and Zou Chaoyang

Journal Article

Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing

Wang Yunlong,Tan Zhongsheng,Chen Ying

Journal Article

Direct energy rebound effect for road transportation in China

Journal Article

Research on construction optimization of asymmetric double arch section in Jiaozhou Bay Subsea Tunnel

Wang Kai,Zhang Chengping,Wang Mengshu

Journal Article

Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Journal Article