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Quadrupole-Linear Ion Trap Tandem Mass Spectrometry System for Clinical Biomarker Analysis Article

Xiang Fang, Jie Xie, Shiying Chu, You Jiang, Yuting An, Chang Li, Xiaoyun Gong, Rui Zhai, Zejian Huang, Chunling Qiu, Xinhua Dai

Engineering 2022, Volume 16, Issue 9,   Pages 56-64 doi: 10.1016/j.eng.2020.10.021

Abstract: and then injected, trapped, and fragmented simultaneously in the linear ion trap (LIT) to reduce the spacecharge effect, enrich the target product ions, and promote sensitivity.Ions with a mass-to-charge ratio (m/z) ranging from 195 to 2022 were demonstrated.The dimensionless Mathieu parameter (q) value used in this study was 0.40 for collision-induced dissociationThe developed method can reduce matrix interference, minimize space charge effects, and avoid the chromatographic

Keywords： Linear ion trap     Quadrupole     Space charge effect Collision-induced dissociation     Biomarker    

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Charge-carrier photogeneration and extraction dynamics of polymer solar cells probed by a transient photocurrentnearby the regime of the space charge-limited current

Boa Jin, Hyunmin Park, Yang Liu, Leijing Liu, Jongdeok An, Wenjing Tian, Chan Im

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 164-179 doi: 10.1007/s11705-020-1976-z

Abstract: To understand the complex behaviors of photogenerated charge carriers within polymer-based bulk-heterojunction-typesolar cells, the charge-carrier photogeneration and extraction dynamics are simultaneously estimatedcorrection for the saturation behavior at a high excitation-intensity range nearby the regime of the spacewell as the extraction quantum efficiencies of the charge-carrier collection during a laser-pulse-inducedduring the charge-carrier extraction that also affects the photocurrent-trace shape.

Keywords： charge-carrier photogeneration     transient photocurrent     polymer solar cells     charge-carrier extraction     spacecharge-limited current    

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membranes using SPES as a hydrophilic polymer for the effective removal of dyes via steric hindrance and chargeeffect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1555-1567 doi: 10.1007/s11705-023-2338-4

Abstract: sulfonated polyethersulfone (SPES) as a hydrophilic polymer and adipic acid as a porogen via non-solvent inducedseparation method for effective fractionation of dyes based on the influence of steric hindrance and chargeeffect.This was attributed to the size effect and the synergistic effect between steric hindrance and chargeNotably, the synergistic impact decreased with dye molecular weight, while greater membrane negative charge

Keywords： adipic acid     loose nanofiltration membrane     dye/salt selective separation     steric hindrance     charge effect    

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A density functional theory study of methane activation on MgO supported NiM cluster: role of M on C–H activation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1485-1492 doi: 10.1007/s11705-022-2169-8

Abstract: To illustrate the adsorptive dissociation behaviors of CH4 at different Ni–M clusters, theMulliken atomic charge was analyzed.

Keywords： CH4 dissociation     Ni–M     C–H bond activation     charge transfer    

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Effect of ligand chain length on hydrophobic charge induction chromatography revealed by molecular dynamics

Lin ZHANG, Yan SUN

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 456-463 doi: 10.1007/s11705-013-1357-y

Abstract: Hydrophobic charge induction chromatography (HCIC) is a mixed-mode chromatography which is advantageousThe effect of the ligand chain length on protein behavior in HCIC was studied.The ligand chain length has a significant effect on both the probability and the irreversibility of theThe simulation results elucidated the effect of the ligand chain length, which is beneficial for the

Keywords： adsorption     desorption     irreversibility     protein conformational transition     molecular dynamics simulation    

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Arsenic trioxide induced rhabdomyolysis, a rare but severe side effect, in an APL patient: a case report

Haiyan He, Ran An, Jian Hou, Weijun Fu

Frontiers of Medicine 2017, Volume 11, Issue 2,   Pages 284-286 doi: 10.1007/s11684-017-0514-y

Abstract: In this report, we present a rare side effect, rhabdomyolysis, in a 68-year-old female APL patient whoThis report describes the first case of ATO-induced rhabdomyolysis.

Keywords： arsenic trioxide     APL     rhabdomyolysis    

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Application of MoS in the space environment: a review

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0755-1

Abstract: A considerable portion of space mechanism failures are related to space tribological problems.Cold welding in high vacuum; surface erosion and collision damage caused by various radiations, highTraditional lubricants can no longer meet the lubrication requirements of the space environment.The friction properties of MoS2, a solid lubricant widely used in space, are discussed.Advances in research on the friction properties of collision sliding contacts in the space environment

Keywords： MoS2     soft metal     space environment     surface texture     synergistic effect     vibration    

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Determination of the dissociation constants of polyepoxysuccinic acid

ZHANG Lihua, ZHU Zhiliang, QIU Yanling, ZHANG Ronghua, ZHAO Jianfu

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 505-508 doi: 10.1007/s11783-008-0077-x

Abstract: The dissociation constants of polyepoxysuccinic acid (PESA) were investigated in this study.Based on the potentiometric titration and the BEST program, the dissociation constants of PESA were determinedto simulate the dissociation process of PESA.By comparison, the dissociation constants of PESA were obtained with model 4.It showed that the HL model with five basic structure units to describe the dissociation of PESA was

Keywords： function     comparison     relevant     corresponding     dissociation    

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Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 287-291 doi: 10.1007/s11465-011-0230-2

Abstract: differential model is constructed for the coupled hysteretic dynamics via modeling the orientation switching induceddifferential equations by employing the Euler-Lagrange equation, and can be easily recast into a state spaceHysteresis loops associated with stress induced polarization switching and butterfly-shaped behaviorThe effects of mechanical loadings on the electrically induced switching are numerically investigated, as well as the mechanically-induced switching with various bias electric fields.

Keywords： differential model     state space     electromechanical switching     butterfly effects     hysteresis    

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Anti-collision monitoring based on detecting casing head vibration induced by drill movements

He Baosheng,Liu Gang,Wang Shuangping,Wen Min

Strategic Study of CAE 2011, Volume 13, Issue 5,   Pages 74-78

Abstract: justify;">Now encryption adjustment wells are getting widely used in offshore, and the risk of well collisionWell anti-collision is becoming more and more important.An anti-collision monitoring system based on detecting casing head vibration induced by drilling movementsIt also indicates that the anti-collision monitoring system for detecting casing head vibration is practicable

Keywords： encryption adjustment well     anti-collision     risk well     vibration signal     time domain analysis     frequency    

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Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 506-510 doi: 10.1007/s11708-013-0275-5

Abstract: The collision frequency function for aerosol particles has already been calculated for the free moleculemagnetic force, electric force and molecular forces, created by particles themselves, recalculated the collisionAttractive forces increase naturally the collision frequency, while repulsive forces decrease it.

Keywords： aerosol particles     collision frequency function     coagulation    

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A method of determining flame radiation fraction induced by interaction burning of tri-symmetric propanefires in open space based on weighted multi-point source model

Jie JI, Junrui DUAN, Huaxian WAN

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1017-1026 doi: 10.1007/s11708-020-0716-x

Abstract: The interaction of multiple fires may lead to a higher flame height and more intense radiation flux than a single fire, which increases the possibility of flame spread and risks to the surroundings. Experiments were conducted using three burners with identical heat release rates (HRRs) and propane as the fuel at various spacings. The results show that flames change from non-merging to merging as the spacing decreases, which result in a complex evolution of flame height and merging point height. To facilitate the analysis, a novel merging criterion based on the dimensionless spacing / was proposed. For non-merging flames ( / >0.368), the flame height is almost identical to a single fire; for merging flames ( / ≤0.368), based on the relationship between thermal buoyancy and thrust (the pressure difference between the inside and outside of the flame), a quantitative analysis of the flame height, merging point height, and air entrainment was formed, and the calculated merging flame heights show a good agreement with the measured experimental values. Moreover, the multi-point source model was further improved, and radiation fraction of propane was calculated. The data obtained in this study would play an important role in calculating the external radiation of propane fire.

Keywords： flame interaction     air entrainment     flame height     multi-point source model     thermal radiation    

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Trauma-induced “Macklin effect” with pneumothorax and large pneumomediastinum, disguised by allergy

Salomone Di Saverio, Kenji Kawamukai, Andrea Biscardi, Silvia Villani, Luca Zucchini, Gregorio Tugnoli

Frontiers of Medicine 2013, Volume 7, Issue 3,   Pages 386-388 doi: 10.1007/s11684-013-0278-y

Abstract: The Macklin effect involves alveolar ruptures with air dissection along bronchovascular sheaths to the

Keywords： thoracic trauma     differential diagnosis     critical care     pneumothorax     pneumomediastinum     CT scan     pitfalls     lung and airways physiology    

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Effect of succinic acid deamidation-induced modification on wheat gluten

Lan LIAO, Mouming ZHAO, Haifeng ZHAO, Jiaoyan REN, Chun CUI, Xiao HU,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 386-392 doi: 10.1007/s11705-009-0250-1

Abstract: The effect of succinic acid deamidation-induced modification on wheat gluten was investigated in theMoreover, succinic acid deamidation-induced modification resulted in little change in molecular weight

Keywords： pH     isoelectric     conformation     deamidation-induced modification     molecular flexibility    

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Synthesis and ultraviolet/aggregation-induced emission investigation of novel tetraphenylvinyl hydrazone

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2061-2073 doi: 10.1007/s11705-023-2366-0

Abstract: incorporated into the sensors for better colorimetric responses, whereas the tetraphenyl unit is in chargeof the aggregation-induced emission effect.All the tetrahydrofuran/H2O solutions of the three compounds exhibit aggregation-induced emissioneffect, whereby the fluorescence emission increases by varying degrees with the volume of poor solventMoreover, good aggregation-induced emission effects are observed in the self-assembly of SC16

Keywords： organogelator     tetraphenylvinyldrazone     single crystal     aggregation-induced emission effect     ion sensing    

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Quadrupole-Linear Ion Trap Tandem Mass Spectrometry System for Clinical Biomarker Analysis

Xiang Fang, Jie Xie, Shiying Chu, You Jiang, Yuting An, Chang Li, Xiaoyun Gong, Rui Zhai, Zejian Huang, Chunling Qiu, Xinhua Dai

Journal Article

Charge-carrier photogeneration and extraction dynamics of polymer solar cells probed by a transient photocurrentnearby the regime of the space charge-limited current

Boa Jin, Hyunmin Park, Yang Liu, Leijing Liu, Jongdeok An, Wenjing Tian, Chan Im

Journal Article

membranes using SPES as a hydrophilic polymer for the effective removal of dyes via steric hindrance and chargeeffect

Journal Article

A density functional theory study of methane activation on MgO supported NiM cluster: role of M on C–H activation

Journal Article

Effect of ligand chain length on hydrophobic charge induction chromatography revealed by molecular dynamics

Lin ZHANG, Yan SUN

Journal Article

Arsenic trioxide induced rhabdomyolysis, a rare but severe side effect, in an APL patient: a case report

Haiyan He, Ran An, Jian Hou, Weijun Fu

Journal Article

Application of MoS in the space environment: a review

Journal Article

Determination of the dissociation constants of polyepoxysuccinic acid

ZHANG Lihua, ZHU Zhiliang, QIU Yanling, ZHANG Ronghua, ZHAO Jianfu

Journal Article

Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Journal Article

Anti-collision monitoring based on detecting casing head vibration induced by drill movements

He Baosheng,Liu Gang,Wang Shuangping,Wen Min

Journal Article

Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Journal Article

A method of determining flame radiation fraction induced by interaction burning of tri-symmetric propanefires in open space based on weighted multi-point source model

Jie JI, Junrui DUAN, Huaxian WAN

Journal Article

Trauma-induced “Macklin effect” with pneumothorax and large pneumomediastinum, disguised by allergy

Salomone Di Saverio, Kenji Kawamukai, Andrea Biscardi, Silvia Villani, Luca Zucchini, Gregorio Tugnoli

Journal Article

Effect of succinic acid deamidation-induced modification on wheat gluten

Lan LIAO, Mouming ZHAO, Haifeng ZHAO, Jiaoyan REN, Chun CUI, Xiao HU,

Journal Article

Synthesis and ultraviolet/aggregation-induced emission investigation of novel tetraphenylvinyl hydrazone

Journal Article