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The midas touch on copper into palladium

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s.ience China Chemistry 2020年第12期63卷 1740-1741页

作者： jie Zeng Hefei National Laboratory for Physical s.iences at the Microscale Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026China

The catalytic semi-hydrogenation of alkynes(C≡C) to alkenes(C=C) has long been a crucial and challenging step in industry as.it restrains the tendency of over-hydrogenation towards substrates [1]. Up to now, Pd-based catalysts show ultrahigh activity and selectivity towards the semihydrogenation of alkynes and are commonly used in industry, while metals such as Cu, Ag and Au exhibit relatively low activity due to their poor hydrogen activation ability.

关键词： hydrogenation palladium semi

Practical Exponential stability of Two Dimensional Nonlinear s.itched Positive systems.in the Roesser Model

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Journal of systems s.ience & Complexity 2023年第3期36卷 1103-1115页

作者： zhANG jie sUN Yuangong school of Mathematical s.iences University of JinanJinan 250022China

This paper deals with the practical exponential stability of two-dimensional(2-D)nonlinear s.itched positive systems with impulse,disturbance and all modes *** the mode-dependent interval dwell time s.itching,new criteria such that 2-D nonlinear s.itched positive systems achieve practical exponential stability are ***,the explicit upper bound and convergence rate of the system state are es.imated *** examples.indicate the correctness and effectiveness of the obtained results.

关键词： Disturbance impulse mode-dependent interval dwell-time(MDiDT)s.itching practical exponential stability roesser model

Protein-protein complexation in bioluminescence

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Protein & Cell 2011年第12期2卷 957-972页

作者： Maxim s.Titus.in Yingang Feng John Lee Eugene s.Vysots.i zhi-jie Liu National Laboratory of Biomacromolecules Institute of BiophysicsChinese Academy of SciencesBeijing 100101China Qingdao ins.itute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China Department of Biochemistry and Molecular Biology University of GeorgiaAthensGA 30602USA Laboratory of Photobiology Institute of Biophysics Russian Academy of SciencesSiberian BranchKrasnoyarsk 660036Russia

in this review we summarize the progress made towards understanding the role of protein-protein interactions.in the function of various bioluminescence systems of marine organisms.including bacteria,jellyfish and soft corals,with particular focus on methodology used to detect and characterize these *** some bioluminescence systems,protein-protein interactions.involve an“accessory protein”whereby a stored substrate is efficiently delivered to the bioluminescent enzyme *** types of complexation mediate energy transfer to an“antenna protein”altering the color and quantum yield of a bioluminescence *** structures of the complexes reveal an important role of electrostatic forces.in governing the corresponding weak interactions and define the nature of the interaction *** most reliable structural model is available for the protein-protein complex of the Ca2+-regulated photoprotein clytin and green-fluorescent protein(GFP)from the jellyfish Clytia gregaria,solved by means of Xray crystallography,NMR mapping and molecular *** provides an example of the potential strategies.in studying the transient complexes.involved in *** is emphasized that structural studies such as these can provide valuable insight into the detailed mechanism of bioluminescence.

关键词： green-fluorescent protein(GFP) photoprotein luciferase lumazine protein Förster resonance energy transfer(FRET) docking

Energy-Efficient Minimum Mobile Charger Coverage for Wireless sensor Networks

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Journal of Computer s.ience & Technology 2022年第4期37卷 869-887页

作者： Abdalaziz sawwan jie Wu Department of Computer and information s.iences Temple UniversityPhiladelphia 19122U.S.A.

sustaining an operational wireless sensor network (WsN) is challenging due to the persistent need of the battery-powered sensors to be charged from time to time. The procedure of exploiting mobile chargers (MCs) that traverse to the fixed sensors of the network and wirelessly transfer energy in an efficient matter has been considered widely as a promising way to tackle this challenge. An optimization problem, called the mobile charger coverage problem, arises naturally to keep all of the sensors alive with an objective of determining both the minimum number of MCs required meeting the sensor recharge frequency and the schedule of these MCs. it is shown that this optimization problem becomes NP-hard in high-dimensional spaces. Moreover, the special case of the homogeneous recharge frequency of the sensors has already been proven to have a tractable algorithm if we consider whether the 1-dimensional space is a line or a ring. in this work, we seek to find a delicate border between the tractable and the intractable problem space. specifically, we study the special case of heterogeneous sensors that take frequencies of 1's and 2's (lifetime of 1 and 0.5 time units) on a line, conjecture the special case's NP-hardness, propose a novel brute-force optimal algorithm, and present a linear-time greedy algorithm that gives a 1.5-approximation solution for the problem. Afterwards, we introduce the energy optimization problem of the MCs with the minimized number and solve it optimally. Comprehensive simulation is conducted to verify the efficiency of using our proposed algorithms that minimize the number of MCs.

关键词： cooperative charging linear network energy optimization mobile charger wireless charging wireless sensor network

Nonlinear Vibration of FGM sandwich Nanoplates with surface Effects

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Acta Mechanica solida sinica 2023年第2期36卷 274-281页

作者： Junhua Xiao jie Wang Department of Engineering Mechanics Yanshan UniversityQinhuangdao 066004China Hebei Key Laboratory of Mechanical Reliability for Heavy Equipments and Large structures Yanshan UniversityQinhuangdao 066004China

Anovel functionally graded material(FGM)sandwich nanoplatemodel with surface effects.is developed in *** using the Gurtin–Murdoch theory of surface elas.icity,surface effects are taken into *** equations for nonlinear vibrations are obtained though the balance of *** Galerkin method is employed to obtain the approximate solutions for nonlinear free and forced vibrations of the FGM *** results show that considering surface effects changes the equivalent Young’s modulus and bending s.iffness of FGM sandwich *** addition,the influences of surface effects are related to the geometric size of the *** examples are proposed to verify the effectiveness of the present results.

关键词： Functionally graded material sandwich nanoplates surface effects Nonlinear vibration

interplay between creeping fat and gut microbiota: A brand-new perspective on fecal microbiota transplantation in Crohn's disease

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World Journal of Gastroenterology 2025年第2期31卷 138-143页

作者： Ying Wang jie Liu Department of Life s.iences and Medicine South District of Endoscopic CenterThe First Affiliated Hospital of University of Science and Technology of ChinaUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Department of Gastroenterology The First Affiliated Hospital of University of Science and Technology of ChinaHefei 230001Anhui ProvinceChina

inflammatory bowel disease,particularly Crohn's disease(CD),has been linked to modifications.in mesenteric adipose tissue(MAT)and the phenomenon known as"creeping fat"(CrF).The presence of CrF is believed to serve as a predictor for early clinical recurrence following surgical intervention in patients with ***,the incorporation of the mesentery during ileocolic resection for CD has been correlated with a decrease in surgical recurrence,indicating the significant role of MAT in the pathogenesis of *** numerous studies have indicated that dys.iosis of the gut microbiota is a critical factor in the development of CD,the functional implications of translocated microbiota within the MAT of CD patients remain *** manuscript commentary discusses a recent basic research conducted by Wu et *** their study,intes.inal bacteria from individuals were transplanted into CD model mice,revealing that fecal microbiota trans-plantation(FMT)from healthy donors alleviated CD symptoms,whereas FMT from CD patients exacerbated these ***,FMT was found to affect intes.inal permeability,barrier function,and the levels of proinflammatory factors and ***,these findings suggest that targeting MAT and CrF may hold therapeutic potential for patients with ***,the study did not evaluate the composition of the intes.inal microbiota of the donors or the subsequent alterations.in the gut ***,the gut microbiota plays a crucial role in the histopathology of CD,and thus,targeting MAT and CrF may represent a promising avenue for treatment in this patient population.

关键词： Crohn's disease Mesenteric adipose tissue Creeping fat Fecal microbiota transplantation Gut microbiota

Linearly Polarization-sensitive Perovs.ite Photodetectors

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Nano-Micro Letters 2023年第6期15卷 428-435页

作者： jie sun Liming Ding Center for Excellence in Nanos.ience(CAs) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190People’s Republic of China University of Chinese Academy of s.iences Beijing 100049People’s Republic of China

Polarization means symmetry loss for light vibration along light propagation direction,which is a particular physical property of *** polarization state is.indecipherable for most polarization-insensitive *** can carry and differentiate light information,and can be used in polarized light detection,polarization imaging and encryption communication[1].Photodetectors are the core component of some photoelectric devices[2]used in biomedical sensing,remote sensing,military field,etc.

关键词： Polarization symmetry polarized

Fixed-Time synchronization of Complex Networks via intermittent Control Without sign Function

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Journal of systems s.ience & Complexity 2022年第5期35卷 1748-1760页

作者： GAo jie zh.o Junchan school of s.ience Southwest Petroleum UniversityChengdu 610500China school of s.ience Hunan University of Technology and BusinessChangsha 410205China Key Laboratory of Hunan Province for statis.ical Learning and intelligent Computation Changsha 410205China

This paper inves.igates the fixed-time synchronization problem of complex networks.A novel s.itching controller is proposed to solve the *** designed controller in this paper only needs.intermittently to pin a few of nodes,which could reduce the control time and save the system’s ***,compared with the exis.ing control methods for the fixed-time synchronization,the novel controller does not use the sign function,which could avoid the chattering *** constructing a Lyapunov function and designing a comparison system,some sufficient conditions are obtained to achieve the fixed-time ***,the numerical simulations could verify the effectiveness and feasibility of the proposed control approaches.

关键词： Chattering behaviors complex networks fixed-time synchronization intermittent control

Precision regulation of plant aromatic amino acid homeostasis

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s.ience China(Life s.iences) 2024年第6期67卷 1316-1317页

作者： jie Luo Yazhouwan National Laboratory(YNL) Sanya 572025China school of Breeding and Multiplication(sanya ins.itute of Breeding and Multiplication) Hainan UniversitySanya 572025China

The aromatic amino acids(AAAs)phenylalanine(Phe),tyrosine(Tyr),and tryptophan(Trp)are not only building blocks of proteins,but also precursors of numerous primary and specialized metabolites(schenck and Maeda,2018).For instance,Trp is a precursor of the phytohormone auxin and the plant defense compounds.indole glucosinolates,while Phe serves as a precursor of lignin,coumarin and *** plant natural products such as morphine and vitamin E are derived from Tyr,and have been employed in human medicine and nutrition(schenck and Maeda,2018;Wu et al.,2022;Yokoyama et al.,2021).

关键词： aromatic instance coumarin