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Quantitative research for improving respiratory.muscle contraction by.breathing exercise

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中华医学杂志(英文版) 1996年第10期109卷 775-775页

作者： Q y.n y.sun Department of Rehabilitation Beijing China-Japan Friendship Hospital.

OBJECTIVE To investigate the effects of breathing exercise on chronic obstructive pulmonary.disease (COPD).PATIENTS AND METHODS 324 patients stable COPD were randomly.assigned to either the breathing exercise group (Group I) or control group consisting of placebo (Group II). The maximum respiratory.pressure (320 cases) and transdiaphragmatic pressure (129 cases) were monitored via RMS-I and Ty.e-2 pressure measurements. The breathing exercises were taught and checked by.experienced specialists periodically. Comparison was made between Group I and Group II using maximum inspiratory.pressure (MIP), maximum expiratory.pressure (MEP), diaphragmatic pressure (Pdi) and maximum transdiaphragmatic pressure (Pdimax) after 1 to 20 *** In Group I MIP increased by.30.42%, MEP 32.10%, Pdi 30.94% and Pdimax 65.59% (Py.(P>0.05).CONCLUSIONS Breathing exercise has a potent and long lasting effect on respiratory.muscle contraction. The methods mentioned above can be used as standard quantitative index for contractile properties of respiratory.muscle.

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Fluorine Ion Influence on the Corrosion of P110 Steel in High-mineralized Solution

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中国腐蚀与防护学报 2010年第5期30卷 410-412页

作者： A.TIMONIN M.KOSTERINA C.X.y.N y.R.FENG Tubular Goods Research Center of CNPC Xian 710065 Corrosion Research Institute(VNIIK) MoscowRussia

Current research was held to check the influence of the fluorine ion injection on the corrosion rate of the API PllO steel in the high-mineralized solution simulating Puguang process *** concentrations of the fluoride... 详细信息

关键词：侵蚀腐蚀状态氟化碘保护功效溶液

Correlation between an Independent Electronic Health Record &External Ranking of Children’s Hospitals

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Health 2021年第2期13卷 81-89页

作者： Lane F. Donnelly.David Scheinker Natalie M. Pageler Andrew y. Shin Lucile Packard Children’s Hospital Stanford Stanford Children’s Health Stanford California USA Department of Pediatrics School of Medicine Stanford University Stanford California USA Department of Radiology School of Medicine Stanford University Stanford California USA

Introduction: To evaluate the correlation between the presence of an independent EHR (compared to a shared EHR sy.tem within an adult hospital sy.tem) and an externally.derived third party.ranking of children’s hospitals. Methods: Children’s hospitals that ranked in the top fifty.of the 2019-2020 US News and World Report (USNWR) were included in the analy.is. The mean and median ranking of children’s hospitals with independent versus a shared EHR was evaluated. The 2019-2020 USNWR rankings of the top twenty.adult hospitals in the United States were then evaluated. For each children’s hospital with an associated adult hospital that was both ranked, it was noted as to whether the EHR for the children’s hospital was independent or shared and statistical differences in rankings compared. Results: Among the top 50 children’s hospitals included, the median USNWR ranking for hospitals was statistically.different with an independent EHR than with a shared EHR (13 vs. 30.0) (p = 0.002). The 21 top ranked adult hospitals were associated with 17 children’s hospitals ranked in the top 50. The median ranking for those with an independent EHR was statistically.different for those with independent EHR versus shared EHR (7 vs. 28) (p = 0.002). Conclusion: Children’s hospitals with an independent EHR are associated with higher scores on an independent external ranking of hospital quality.compared to those which share an EHR with a partner adult hospital.

关键词： Electronic Health Record Quality Pediatrics

Light People:Professor Che Ting Chan,curiosity.drives to create the impossibilities

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Light(Science & Applications) 2024年第7期13卷 1229-1233页

作者： Tingting sun y.ng Xiong Light Publishing Group Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesNo.3888 Dong Nanhu RoadChangchun 130033China College of Intelligence Science and Technology National University of Defense TechnologyNo.109 Deya RoadChangsha 410073China

Editorial“When something is said to be impossible,there are two points for researchers to initially.clarify.whether it really.is forbidden by.the laws of nature;or whether it is simply.that no material that currently.exists in nature can do that.”Metamaterials are such magical beings,which have phy.ical properties like invisibility.negative refraction,super-resolution,and perfect absorption that are absent from natural *** has been rated by.Science as one of the top ten scientific and technological breakthroughs affecting human beings in the 21st *** this issue of Light People,we spoke with a“magic”creator,Professor Che Ting Chan,the Associate VicePresident(Research&Development)of the Hong Kong University.of Science and Technology.HKUST),Member of the Hong Kong Academy.of Sciences and Fellow of the American Phy.ical *** has researched a number of theoretical problems in material phy.ics,investigated the theory.behind what they.seek to achieve,and modulated light(electromagnetism)and acoustic waves through *** the following,let’s take a closer look at Professor Che Ting Chan’s research life,and appreciate his sty.e and the background of his accomplishment.

关键词： breakthrough closer visibility

Emergent Phy.ics in Metal−Organic Frameworks

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Chinese Journal of Chemistry 2024年第20期42卷 2514-2519页

作者： Shaoze Wang y.ngchao Wang Haozhou sun Lei sun Department of Chemistry School of Science and Research Center for Industries of the FutureWestlake University600 Dunyu RoadHangzhouZhejiang 310030China Key.Laboratory.or Quantum Materials of Zhejiang Province Department of PhysicsSchool of ScienceWestlakeUniversity600 DunyuRoadHangzhouZhejiang 310030China Institute of Natural Sciences Westlake InstituteforAdvanced Study18 Shilongshan RoadHangzhouZhejiang 310024China

Many.body.interactions in condensed matter could lead to emergent phenomena spanning superconductivity.ferromagnetism,exciton condensation,*** emergence of these phenomena often requires highly.ordered spatial arrangements of the interacting species to enforce specific space sy.metries and interacting ***−organic frameworks(MOFs),cry.talline materials formed by.self-assembly.of metal ions and organic ligands,allow for precise design of their cry.tal structures and sophisticated tuning of Coulombic interaction or magnetic coupling among lattice *** atomic-level designability.combined with high cry.tallinity.and versatile ty.es of lattices(e.g.,kagome and honey.omb lattices)render MOFs as a great platform to investigate emergent *** this Emerging Topic,we summarize recent studies evidencing emergent phenomena in MOFs including strong correlations,superconductivity.charge density.wave,long-range magnetic order,and quantum spin *** highlight the great potential of MOFs as quantum materials and discuss challenges including growth of high-quality.single cry.tals and in-depth phy.ical characterizations to reveal insights into the nature of phy.ical properties of MOFs.

关键词： Metal-organic frameworks Emergent phy.ics Strong correlations Superconductors Magnetic properties

Boolean Functions with multiple-Valued Walsh Spectra

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Chinese Journal of Electronics 2019年第6期28卷 1165-1169页

作者： sun Tianfeng HU Bin Information Engineering University

Compared with the method by.Zhang in 2017, an extended one for constructing Boolean functions with multiple-valued Walsh spectra is given, which is derived from a bent function by.complementing the values at some points. Based on which, new classes of Boolean functions with four-valued and five-valued Walsh spectra are presented, and some of their cry.tographic properties are studied.

关键词： Boolean function Bent function multiple-valued Walsh spectra Algebraic degree

Water-use efficiency.in response to simulated increasing precipitation in a temperate desert ecosy.tem of Xinjiang, China

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Journal of Arid Land 2017年第6期9卷 823-836页

作者： HUANG Gang LI y.n mu Xiaohan ZHAO Hongmei CAO y.nfeng State Key.Lab of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Xinjiang Key.Laboratory.of Soil and Plant Ecological Processes College of Grassland and Environmental Sciences Xinjiang Agricultural University Geology.Science Department Shannxi Normal University

Water-use efficiency.WUE） is a key.plant functional trait that play. a central role in the global cy.les of water and carbon. Although increasing precipitation may.cause vegetation changes, few studies have explored the linkage between alteration in vegetation and WUE. Here, we analy.ed the responses of leaf WUE, ecosy.tem carbon and water exchanges, ecosy.tem WUE, and plant community.composition changes under normal conditions and also under extra 15% or 30% increases in annual precipitation in a temperate desert ecosy.tem of Xinjiang, China. We found that leaf WUE and ecosy.tem WUE showed inconsistent responses to increasing precipitation. Leaf WUE consistently.decreased as precipitation increased. By.contrast, the responses of the ecosy.tem WUE to increasing precipitation are different in different precipitation regimes： increasing by.33.9% in the wet y.ar（i.e., the normal precipitation y.ars）and decreasing by.4.1% in the dry.1}ar when the precipitation was about 30% less than that in the wet *** sy.tematically.assessed the herbaceous community.dy.amics, community.composition, and vegetation coverage to explain the responses of ecosy.tem WUE, and found that the between-y.ar discrepancy.in ecosy.tem WUE was consistent with the extent to which plant biomass was stimulated by.the increase in precipitation. Although there was no change in the relative significance of ephemerals in the plant community. its greater overall plant biomass drove an increased ecosy.tem WUE under the conditions of increasing precipitation in 2011. However, the slight increase in plant biomass exerted no significant effect on ecosy.tem WUE in 2012. Our findings suggest that an alteration in the dominant species in this plant community.can induce a shift in the carbon-and water-based economics of desert ecosy.tems.

关键词： desert ecosy.tem ecosy.tem water-use efficiency.gross carbon exchange increasing precipitation leaf water-use efficiency.net carbon exchange Gurbantunggut Desert

Theil Utility.Based multi-Device Cooperation Mechanism for Service Quality.Equilibrium in Ubiquitous Stub Environments

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China Communications 2014年第6期11卷 140-150页

作者： RUI Lanlan mu Nan GUO Shaoy.ng QIU Xuesong ZHANG Jie State Key.Laboratory.of Networking and Switching Technology Beijing University of Posts and Telecommunications AsiaInfo-Linkage Inc.

An approach to make heterogeneous devices cooperate with each other to provide ubiquitous service remains a longstanding challenge in ubiquitous environments. In addition, when multi-user request ubiquitous services simultaneously. the arbitrariness in resource allocation process easily.leads to non-equilibrium of qualities of multiuser's services. Thus, How to design an effective heterogeneous devices cooperation mechanism that meet the QoS requirements and also equilibrate QoS among multi-user's services becomes a very.tough problem. In the paper, Equilibrium Index and Theil Utility.function are imported to establish a multidevice equilibrium cooperation model, which is benefit for resource allocation in ubiquitous environments. Then a Theil-Equilibrium based Cooperation Mechanism for multi-service is proposed. Firstly. in order to simplify.calculating, a dimensionless processing is introduced. After that, a cooperation approach with Theil-Utility.Heuristic algorithm is designed to choose the best solution for the simplified model. At last, the mechanism is simulated in a smart home scenario. The simulation results show that this mechanism outperforms non-equilibrium method by.improving almost 40% in internal equilibrium with just reducing 0-2% in the total utility.ofall the requested ubiquitous services. These data show that the proposed mechanism performs well in equilibrating qualities of multi-user's ubiquitous services.

关键词： ubiquitousstub environments cooperation among multi-device QoS equilibrium equilibrium index theil utility

The application of biomacromolecules to improve oral absorption by.enhanced intestinal permeability.A mini-review

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Chinese Chemical Letters 2020年第7期31卷 1729-1736页

作者： Min sun Hankun Hu Leming sun Zhen Fan Department of Poly.eric Materials School of Materials Science and EngineeringTongji University.Shanghai 201804China Department of Pharmacy Zhongnan Hospital of Wuhan UniversityWuhan 430071China School of Life Sciences Northwestern Polytechnical UniversityXi'an 710072China Institute for Advanced Study Tongji UniversityShanghai 200092China

Oral administration has been widely.regarded as the most conve nient,quick and safe approach compared to other routes of drug ***,oral absorption of drugs is often limited due to rigorous environments and complex obstacles in gastrointestinal *** received considerable attention,biomacromolecules have been applied for oral drug delivery.to improve the bioavailability.which could be attributed to its stability.and unique bioactivities,including intestinal adhesion,opening of epithelial tight junctions,inhibiting cell efflux and regulating relative protein ***,enhancing intestinal permeability.has been regarded as a promising strategy.for improving bioavailability.of oral drug *** this review,a series of biomacromolecules and the related mechanisms of increasing intestinal permeability.for enhanced oral bioavailability.are comprehensively.classified and *** addition,recent advances in biomacromolecules based oral delivery.and related future directions are mentioned and predicted in this review article.

关键词： Biomacromolecules Intestinal permeability Oral administration Transported ratio Delivery.barriers