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Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1807-1817 doi: 10.1007/s11705-022-2243-2

Abstract: i> reduced Ru/C-n catalyst was higher than that of the <i>in-situi> reduced Ru/C-y catalyst.Therefore, an <i>in-situi> H2 reduction and moderate oxidation method was developed to increaseof the <i>in-situi> H2 reduction and moderate oxidized Ru/C-i2 catalyst, the interactionThe developed <i>in-situi> H2 reduction and moderate oxidation method eliminated the stepof the non-<i>in-situi> reduction of catalyst outside the trickle bed reactor.

Keywords: Ru/C catalyst     <i>in-situi> H2 reduction and moderate oxidation     <i>in-situi> reduction     non-<i>in-situi> reduction     hydrogenation of 3     5-dimethylpyridine    

Room temperature preparation of hydrazine-linked covalent organic frameworks coated capillaries for separation and determination of polycyclic aromatic hydrocarbons

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 548-556 doi: 10.1007/s11705-022-2252-1

Abstract: DHzDS: 2,5-bis(3-(ethylthio)propoxy)terephthalohydrazide) was first synthesized by a simpler and easier methodThe TFPB-DHzDS coated capillaries were prepared by an <i>in-situi> growth process at room temperatureAnd the established method was used successfully to determine PAHs in natural water and soil samples.polycyclic aromatic hydrocarbons in these samples ranged from 90.01% to 111.0%, indicating that the method

Keywords: hydrazine-linked TFPB-DHzDS     <i>in-situi> growth method     open-tubular capillary electrochromatography    

Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation of methyl palmitate to hydrocarbons using methanol as the hydrogen donor

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 443-460 doi: 10.1007/s11705-021-2079-1

Abstract: carbonization of the metal doped resorcinol-formaldehyde resins synthesized by the one-pot extended Stöber methodCompared with those of metallic Ni and Co, the <i>di>-band center of the Ni-Co alloy shifted away fromIn the <i>in-situi> aqueous phase hydrodeoxygenation of methyl palmitate with methanol as the hydrogenThe Ni-Co@C catalysts gave higher activity than the Ni@C and Co@C catalysts, and the yields of <i>ni>-pentadecane and <i>ni>-C6–<i>ni>-C16 reached 71.6% and 92.6%, respectively

Keywords: Stöber method     carbon-coated Ni-Co alloy     <i>in-situi> hydrodeoxygenation     methyl palmitate     decarbonylation    

density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: Therefore, <i>in-situi> density measurement is of great interest and has significant application valueThis study is the first to propose an <i>in-situi> density measurement method using ultrasonic technologyThe analyses of the time-domain and frequency-domain signals are combined in the proposed method.Results show that the proposed method has good agreement with the PVT method.The proposed method has the advantages of <i>in-situi> measurement, non-destructive, high accuracy,

Keywords: ultrasonic measurement     melt density     <i>in-situi> measurement     injection molding    

Efficient hydrothermal deoxygenation of methyl palmitate to diesel-like hydrocarbons on carbon encapsulated Ni–Sn intermetallic compounds with methanol as hydrogen donor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 139-155 doi: 10.1007/s11705-022-2217-4

Abstract: carbon-encapsulated Ni and Ni–Sn intermetallic compound catalysts were prepared by the one-pot extended Stöber methodfollowed by carbonization and tested for <i>in-situi> hydrothermal deoxygenation of methyl palmitateDuring the <i>in-situi> hydrothermal deoxygenation, the synergism between Ni and Sn favors palmitic/i>-pentadecane.The <i>ni>-pentadecane and <i>ni>-hexadecane yields reached 88.1% and 92.8% on carbon-encapsulated

Keywords: extended Stöber method     carbon encapsulated Ni–Sn intermetallic compounds     confinement     <i>in-situi    

><i>In situi> growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1430-1439 doi: 10.1007/s11705-023-2320-1

Abstract: Herein, we report an <i>in situi> phosphorization of zeolitic imidazole frameworks (ZIF-67) to generateFirst-principle calculations illustrated that benefit from the construction of CoP/ZIF-67 heterojunction, the <i>di>-band center of CoP downshifted after bonding with ZIF-67 and the Gibbs free energy (Δ<i>Gi>

Keywords: CoP/Cu2O@CF     electrocatalyst     phosphorization     HER     DFT    

A novel six-legged walking machine tool for

Jimu LIU, Yuan TIAN, Feng GAO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 351-364 doi: 10.1007/s11465-020-0594-2

Abstract: The manufacture and maintenance of large parts in ships, trains, aircrafts, and so on create an increasing demand for mobile machine tools to perform operations. However, few mobile robots can accommodate the complex environment of industrial plants while performing machining tasks. This study proposes a novel six-legged walking machine tool consisting of a legged mobile robot and a portable parallel kinematic machine tool. The kinematic model of the entire system is presented, and the workspace of different components, including a leg, the body, and the head, is analyzed. A hierarchical motion planning scheme is proposed to take advantage of the large workspace of the legged mobile platform and the high precision of the parallel machine tool. The repeatability of the head motion, body motion, and walking distance is evaluated through experiments, which is 0.11, 1.0, and 3.4 mm, respectively. Finally, an application scenario is shown in which the walking machine tool steps successfully over a 250 mm-high obstacle and drills a hole in an aluminum plate. The experiments prove the rationality of the hierarchical motion planning scheme and demonstrate the extensive potential of the walking machine tool for operations on large parts.

Keywords: legged robot     parallel mechanism     mobile machine tool     <i>in-situi> machining    

Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots for aero-engine maintenance

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0756-0

Abstract: <i>In-situi> maintenance is of great significance for improving the efficiency and ensuring the safetyin-situi> aero-engine maintenance.in-situi> maintenance.in-situi> aero-engine maintenance.The compact continuum robot system could be considered a novel solution to perform <i>in-situi> maintenance

Keywords: kinetostatic modeling     morphology characterization     variable friction     continuum robots     <i>in-situi> maintenance    

grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 721-731 doi: 10.1007/s11708-021-0766-8

Abstract: decorated N-doped titania (N-TiO2) composite (TiN/N-TiO2) is fabricated via an <i>in situ i>nitridation using a hydrothermally synthesized TiO2 and melamine (MA) as raw materialsThe results indicate that the superior activity is mainly caused by the <i>in i><i>situ i>formationThe present study provides a fascinating approach to <i>in situi> forming nonmetallic plasmonic material

Keywords: photocatalytic H2 evolution     TiN/N-TiO2 composite     plasmonic effect     <i>in-situi> nitridation    

Study on the growth of platinum nanowires as cathode catalysts in proton exchange membrane fuel cells

Ruiqing Wang, Xiaolan Cao, Sheng Sui, Bing Li, Qingfeng Li

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 364-375 doi: 10.1007/s11705-021-2052-z

Abstract: In this paper, accurately controlled growth of nanowires in a carbon matrix is achieved for reducingA mechanism of the Pt nanowires growth is proposed.

Keywords: Pt nanowires     morphology     structure control     <i>in situi> growth mechanism     proton exchange membrane fuel    

Frontier of continuous structural health monitoring system for short & medium span bridges and condition assessment

Ayaho MIYAMOTO, Risto KIVILUOMA, Akito YABE

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 569-604 doi: 10.1007/s11709-018-0498-y

Abstract: The kernel of such bridge management is to develop a method of safety(condition) assessment on itemsstructural safety(performance) and derive optimal strategies for maintenance using reliability based methodThe second is a long term health monitoring method by using the public buses as part of a public transit

Keywords: collection     system     maintenance     bridge performance     information technology     loading vehicle(public bus)     <i>in-situi> loading    

Carbon-doped surface unsaturated sulfur enriched CoS@rGO aerogel pseudocapacitive anode and biomass-derived porous carbon cathode for advanced lithium-ion capacitors

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1500-1513 doi: 10.1007/s11705-021-2086-2

Abstract: For the anode, we introduced <i>in situi> carbon-doped and surface-enriched unsaturated sulfur into

Keywords: <i>in-situi> carbon-doped     surface unsaturated sulfur enriched     pseudocapacitive energy storage     biomass-derived    

Comparison of growth and lipid accumulation properties of two oleaginous microalgae under different nutrient

Qiao ZHANG,Yu HONG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 703-709 doi: 10.1007/s11783-014-0649-x

Abstract: This study compared the growth and lipid accumulation properties of two oleaginous microalgae, namelyIn summary, low-nutrient conditions favour the growth and lipid production of both algae, but sp.

Keywords: <i>Scenedesmusi> sp. LX1     <i>Chlorellai> sp.HQ     growth rate     algal biomass     lipid accumulation     triacylglycerols (TAGs)    

Remediation of soil and groundwater contaminated with organic chemicals using stabilized nanoparticles: Lessons from the past two decades

Zhengqing Cai, Xiao Zhao, Jun Duan, Dongye Zhao, Zhi Dang, Zhang Lin

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1263-8

Abstract: . ▪ Examined various in situ remediation technologies based on stabilized nanoparticles. ▪ Summarizeddeliverability and high reactivity, stabilized nanoparticles have been studied for nearly two decades for in situmechanisms in nanoparticle stabilization; 2) summarize key applications of stabilized nanoparticles for in situ

Keywords: Stabilized nanoparticle     <i>In-situi> remediation     Organic contaminant     Soil remediation     Groundwater     Fate    

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 555-563 doi: 10.1007/s11705-018-1715-x

Abstract:

Exceptionally strong polyolefin nanocomposites are synthesized by <i>in-situi> polymerization using

Keywords: polyolefin nanocomposites     metallocenes     methylaluminoxane    

Title Author Date Type Operation

Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Journal Article

Room temperature preparation of hydrazine-linked covalent organic frameworks coated capillaries for separation and determination of polycyclic aromatic hydrocarbons

Journal Article

Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation of methyl palmitate to hydrocarbons using methanol as the hydrogen donor

Journal Article

density measurement for plastic injection molding via ultrasonic technology

Journal Article

Efficient hydrothermal deoxygenation of methyl palmitate to diesel-like hydrocarbons on carbon encapsulated Ni–Sn intermetallic compounds with methanol as hydrogen donor

Journal Article

><i>In situi> growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Journal Article

A novel six-legged walking machine tool for

Jimu LIU, Yuan TIAN, Feng GAO

Journal Article

Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots for aero-engine maintenance

Journal Article

grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity

Journal Article

Study on the growth of platinum nanowires as cathode catalysts in proton exchange membrane fuel cells

Ruiqing Wang, Xiaolan Cao, Sheng Sui, Bing Li, Qingfeng Li

Journal Article

Frontier of continuous structural health monitoring system for short & medium span bridges and condition assessment

Ayaho MIYAMOTO, Risto KIVILUOMA, Akito YABE

Journal Article

Carbon-doped surface unsaturated sulfur enriched CoS@rGO aerogel pseudocapacitive anode and biomass-derived porous carbon cathode for advanced lithium-ion capacitors

Journal Article

Comparison of growth and lipid accumulation properties of two oleaginous microalgae under different nutrient

Qiao ZHANG,Yu HONG

Journal Article

Remediation of soil and groundwater contaminated with organic chemicals using stabilized nanoparticles: Lessons from the past two decades

Zhengqing Cai, Xiao Zhao, Jun Duan, Dongye Zhao, Zhi Dang, Zhang Lin

Journal Article

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Journal Article