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Practical numerical simulation of the effect of TBM process pressures on soil displacements through 3D shift iteration

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Underground Space 2018年第4期3卷 297-309页

作者： Benno ring Marc Comulada ring–Consultancy in Tunnelling Alpenstr.582131 StockdorfGermany Maidl Tunnelconsultants Goethestr.7480336 MunichGermany

A 3D-finite element model is illustrated that allows for the iterative simulation of the shield drive with its face and grouting pressures by shifting the determined stresses and displacements after each calculation *** are performed for the tunneling of Rio de Janeiro’s Line 4 and compared to the results of analytical limit equilibrium analyses and monitoring results of the actual TBM-drive.

关键词： Settlements TBM pressures 3D-Finite element method Numerical simulation Shift iteration

A rotating α-chain in the nucleus 12C

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Science China(Physics,Mechanics & Astronomy) 2019年第11期62卷 14-15页

作者： Peter ring Physics Department Technical University Munich State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University

Because of the strong nuclear force among protons and neutrons,α-particles form a stable configuration not only in free space, but also in very light nuclei. Even in unstable configurations of heavy and super-heavy nuclei,α-decay is often observed. Obviously there is a high probability for the formation of anα-particle in such systems, which tunnels through the Coulomb barrier as a combined particle.

关键词： A rotating chain in the nucleus

Carnobacteria in fish

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Aquaculture and Fisheries 2024年第2期9卷 193-205页

作者： Einar ring Norwegian College of Fishery Science Faculty of BioscienceFisheries and EconomicsUiT The Arctic University of NorwayTromsø9010Norway

Carnobacterium is a genus of Gram-positive bacteria,within family Carnobacteriaceae,and they are catalase-and oxidase-negative,non-sporing bacteria with properties such as CO_(2)and L(+)-lactic acid production from glucose,but they are not able to grow on acetate *** are ubiquitous lactic acid bacteria and have been isolated from both cold and temperate environments,and they are identified as components of the microbiota in the gastrointestinal(GI)tract of salmonids and several other fish species of which Carnobacterium(piscicola)maltaromaticum,Carnobacterium mobile,Carnobacterium divergens,Carnobacterium alterfunitum,and Carnobacterium inhibens are *** the last two decades several studies have revealed that carnobacteria can act as probiotics to promote health benefits of fish,as well as they in ex vivo studies to some extent can out-compete *** addition to beneficial effects,information is available that some carnobacteria species causing fish *** aim of the present review is to present an updated overview of Carnobacterium in fish,with focus on their presence in the GI tract,their use as probiotic supplement and general information on pathogenic carnobacteria.

关键词： Carnobacterium Gastrointestinal tract Probiotics Fish health Pathogenic

Probiotics in shellfish aquaculture

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Aquaculture and Fisheries 2020年第1期5卷 1-27页

作者： Einar ringΦ Norwegian College of Fishery Science Faculty of BiosciencesFisheries and EconomicsUiTThe Arctic University of NorwayTromso 9037Norway A R

The shellfish aquaculture industry has dramatically developed during the last two ***,this de-velopment has,in some cases,resulted in environmental degradation,emergence of diseases and low *** need for improving disease resistance,growth performance,feed efficiency,and safe aquatic production for human consumption has stimulated development and applications of probiotics in *** used in shellfish aquaculture include genera of Lactobacillus,Enterococcus,Bacillus,Aeromonas,Alteromonas,Arthrobacter,Bifidobacterium,Clostridium,Parnibaillus,Phaeobacter,Pseudoalteromonas,Pseudomonas,Rhodosporidium,Roseobacter,Streptomyces and *** beneficial effects of these probiotics include improved growth performance,enzymatic contribution to nutrition,inhibition of adherence and colo-nization of pathogenic bacteria in the digestive tract,modulation of the gut microbiota,and increase haema-tological parameters and immune *** present review addressed insight into the application of probiotics in shellfish aquaculture,methods of administration,mode of actions,and their enhancing effects,and discuss research gaps and issues that merit further investigations.

关键词： Probiotics Shellfish Aquaculture

g factors of nuclear low-lying states:A covariant description

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Science China(Physics,Mechanics & Astronomy) 2011年第2期54卷 198-203页

作者： YAO JiangMing PENG Jing MENG Jie ring Peter School of Physical Science and Technology Southwest University Chongqing 400715 China Department of Physics Beijing Normal University Beijing 100875 China State Key Laboratory for Nuclear Physics and Technology School of Physics Peking University Beijing 100871 China School of Physics and Nuclear Energy Engineering Beihang University Beijing 100191 China Department of Physics University of Stellenbosch Stellenbosh South Africa Physik-Department der Technischen Universitat Munchen D-85748 Garching Germany

The g factors and spectroscopic quadrupole moments of low-lying excited states 2+1,…,81+ in 24Mg are studied in a covariant density functional *** wave functions are constructed by configuration mixing of axially deformed mean-field states projected on good angular *** mean-field states are obtained from the constraint relativistic point-coupling model plus BCS calculations using the PC-F1 parametrization for the particle-hole channel and a density-independent delta-force for the particle-particle *** available experimental g factor and spectroscopic quadrupole moment of 21+ state are reproduced quite *** angular momentum dependence of g factors and spectroscopic quadrupole moments,as well as the effects of pairing correlations are investigated.

关键词： covariant density functional theory magnetic moment g factor spectroscopic quadrupole moment

Current medical management of endocrine-related male infertility

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Asian Journal of Andrology 2016年第3期18卷 357-363,I0007页

作者： Joshua D ring Aye A Lwin Tobias S Kohler Division of Urology Department of Surgery Southern Illinois University Springfield IL 62794 USA.

Male factor contributes to 50%-60% of overall infertility but is solely responsible in only 20% of couples. Although most male factor infertility is ascertained from an abnormal semen analysis, other male factors can be contributory especially if the sample returns normal. Male infertility can be due to identifiable hormonal or anatomical etiologies that may be reversible or irreversible. This manuscript will highlight existing guidelines and our recommendations for hormone evaluation for male infertility and empiric therapies including multivitamins, estrogen receptor modulators （clomiphene）, estrogen conversion blockers （anastrozole）, and hormone replacement.

关键词： anastrazole clomid human chorionic gonadotropin male infertility sex hormone-binding globulin

Phosphorylated Salicylic Acid as Flame Retardant in Epoxy Resins and Composites

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Journal of Renewable Materials 2022年第7期10卷 1931-1950页

作者： Lara Greiner Philipp Kukla Sebastian Eibl Manfred Döring Bundeswehr Research Institute for Materials Fuels and LubricantsErding85435Germany Fraunhofer Institute for Structural Durability and System Reliability LBF Darmstadt64289Germany Schill+Seilacher GmbH Böblingen71032Germany

A novel,versatile flame retardant substructure based on phosphorylated salicylic acid(SCP)is described and used in the synthesis of new flame retardants for HexFlowRTM6,a high-performance epoxy resin used in resin transfer molding processes as composite *** starting material salicylic acid can be obtained from natural *** as reactive phosphorus chloride is converted with a novolak,a novolak containing 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide(DOPO)substituents or DOPO-hydroquinone to flame retardants with sufficient thermal stability and high char ***,these flame retardants are soluble in the resin as well as react into the epoxy *** determined thermal stability and glass transition temperatures of flame retarded neat resin samples as well as the interlaminar shear strength of corresponding carbon fiber reinforced composite materials showed the applicability of these flame *** resin samples and composites were tested for their flammability by UL94 and/or flame-retardant performance by cone *** tested flame retardants decrease the peak of heat release rate by up to 54%for neat resin samples.A combination of DOPO and SCP in one flame retardant shows synergistic effects in char formation and the mode of action adapts to neat resin or fiber-reinforced samples,so there is efficient flame retardancy in both ***,a tailoring of SCP based flame retardants is ***,these flame retardants efficiently reduce fiber degradation during combustion of carbon fiber-reinforced epoxy resins as observed by scanning electron microscopy and energy dispersive X-ray spectroscopy.

关键词： Epoxy resin composite fiber protection bio-based flame retardant

Key materials and future perspective for aqueous rechargeable lithium-ion batteries

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Materials Reports(Energy) 2022年第2期2卷 21-38页

作者： Shigang Chen Soe ring Jeong Shanwen Tao School of Engineering University of WarwickCoventryCV47ALUK Department of Chemical Engineering Monash UniversityClaytonVictoria3800Australia

Aqueous rechargeable lithium-ion battery(ARLiB)is of specific importance due to the low-cost,environmentalfriendly ***,its energy denisty and cyclic life have been significantly enhanced,demonstarting the potential for real *** improvement on key materials of ARLiB,ranging from cathode,anode and electrolyte,can finally ameliorate coresponding performance of full ***,the cathode materials of ARLiBs are summerized as spinel oxides,layered oxides,olivine polyanion compounds olivine and Prussian blue analogues,while anode materials are classified into vanadium-based,polyanion,titanium-based and organic ***,the strategies for better aqueous electrolytes are discussed from the aspects of salt concentration,solvent and *** the last part,issues challenging the commercialization of ARLiBs are provided as well as the suggestions for future research and development.

关键词： Aqueous rechargeable lithium-ion battery Electrode Electrolyte High voltage High energy density

Relativistic Quasiparticle Random Phase Approximation with a Separable Pairing Force

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Chinese Physics Letters 2009年第5期26卷 52-55页

作者：田源马中玉 ring Peter China Institute of Atomic Energy Beijing 102413 Physikdepartment Technische Universitat Munchen D-85748 Garching Germany Center of Theoretical Nuclear Physics National Laboratory of Heavy Collision Lanzhou 730000

In our previous work [Phys. Lett. （to be published）, Chin. Phys. Lett. 23 （2006） 3226], we introduced a separable pairing force for relativistic Hartree-Bogoliubov calculations. This force was adjusted to reproduce the pairing properties of the Gogny force in nuclear matter. By using the well known techniques of Talmi and Moshinsky it can be expanded in a series of separable terms and converges quickly after a few terms. It was found that the pairing properties can be depicted on almost the same footing as the original pairing interaction, not only in nuclear matter, but also in finite nuclei. In this study, we construct a relativistic quasiparticle random phase approximation （RQRPA） with this separable pairing interaction and calculate the excitation energies of the first excited 2^＋ states and reduced B（E2; 0^＋ → 2^＋） transition rates for a chain of Sn isotopes in RQRPA. Compared with the results of the full Gogny force, we find that this simple separable pairing interaction can describe the pairing properties of the excited vibrational states as well as the original pairing interaction.

关键词： gamma-ray bursts gamma-rays relativity