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  • Chapter 10 Representations and couplings

    2001-6-7 · 10.1 What is coupling? 239 <3> Example. Suppose {Pn} is a sequence of probability measures on the real line, for which Pn P. Write Fn and F for the corresponding distribution functions, and qn and q for the quantile functions. From Section 7.1 we know that Fn(x) F(x) at each x for which P{x}=0, which implies (Problem [1]) that qn(u) q(u) at

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  • Biological couplings: Function, characteristics and ...

    2010-2-21 · Ren, L., Liang, Y. Biological couplings: Function, characteristics and implementation mode. Sci. China Technol. Sci. 53, 379–387 (2010). https://doi.org/10.1007/s11431-010-0043-2. Download citation. Received: 20 March 2009. Accepted: 28 June 2009. Published: 21 February 2010. Issue Date: February 2010. DOI: https://doi.org/10.1007/s11431-010-0043-2

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  • Biological couplings: Function, characteristics and ...

    [1][2][3][4][5][6][7][8] When an organism combines a number of factors such as morphology, structure and materials in a process known as biological coupling, …

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  • Self-Couplings and the concentration function | SpringerLink

    The concentration function of a random variable may be estimated using couplings of the variable with itself.

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  • Coupling Matrix Optimization Synthesis for Filters with ...

    2019-3-12 · of couplings allows generating additional transmission zeros. Combining cross-couplings with frequency- variant couplings allows reducing the overall number of couplings for a given set of transmission zeros.

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  • Phys. Rev. B 103, 125413 (2021) - Magnetization dynamics ...

    2021-3-11 · Figure 10 The quantum dot magnetization S z ( t ) as a function of time and ɛ after the quench in the couplings to ferromagnetic leads and in the coupling to (a) MBS and (b) FBS. The corresponding cross sections are shown in (c), where solid lines are for the case of quench in the coupling to MBS, while dashed lines correspond to the quench in the coupling to FBS V F .

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  • 3D RNA and Functional Interactions from Evolutionary

    2016-5-5 · Evolutionary couplings (ECs) between pairs of nucleotides were evaluated by their ability to recover RNA 3D contacts in the known structure of a representative sequence from each of 22 RFAM families . To assess the accuracy of predicted contacts, we define contacts as true positives if their minimum-atom-distance is < 8 Å. All 22 RNAs with known structures had a true …

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  • Integrable Couplings of the Generalized AKNS Hierarchy ...

    2007-6-27 · Then a new integrable couplings of the generalized AKNS hierarchy is derived, which possesses bi-Hamiltonian structure and contains an arbitrary spatial function. As its reduction, we gain the integrable couplings of the Schrödinger equation. Furthermore, many conserved quantities of the integrable couplings are obtained.

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  • Phosphorus-mediated sp2–sp3 couplings for C–H ...

    2021-4-28 · Salt formation is complete within 1 h when using 10; then adding TfOH, methanol and water directly to the reaction mixture and stirring for 12 …

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  • Application of the renormalization group technique to the ...

    The first approximation is equivalent to the summation of leading logarithmic terms carried out by Bychkovet al., and correspondingly the vertex function displays a singularity at a finite value of ω. The second approximation accounts for the next leading logarithmic terms as well, and by this means the singularity is shown to be pushed down to ω=0.

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  • About Shaft Couplings | NBK | The Motion Control

    2016-7-8 · About Shaft Couplings. A shaft coupling is a mechanical component that connects the drive shaft and driven shaft of a motor, etc., in order to transmit power. Shaft couplings introduce mechanical flexibility, providing tolerance for shaft misalignment. As a result, this coupling flexibility can reduce uneven wear on the bearing, equipment ...

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  • Coupling Matrix Optimization Synthesis for Filters with ...

    2019-3-12 · constant couplings. Then, the cost function is constructed as a least squares problem involving both the eigenvalues of the new coupling matrix with constant couplings and that of the transversal coupling matrix. The solution is found via the solvopt optimization method. ... until the value of the cost function drops below 10 ...

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  • Phys. Rev. B 96, 115415 (2017) - Thermoelectrics in ...

    2017-9-8 · Electric current and heat currents. (a) Electric current in System 1 as a function of gate detuning V 2 − V 1 and total gating V 2 + V 1 at low temperature, k B T ℓ = 10 − 2 U. (b) Heat current in lead A, J A, at high temperature, k B T ℓ = 10 − 1 U (contours indicate where J A and J B are zero). (c) Heat current in lead C, J C, for k ...

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  • Use of a nonlinear controller with dynamic couplings in ...

    2021-5-21 · Function F ∼ η is defined in ... As can be observed in Figure 13(a) and (b), linear velocity couplings are more than 10 times less than for vehicle 1, but angular velocity couplings have comparable values. The velocities x ...

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  • Beyond Traditional Cross Couplings: The Scope of the

    2010-2-22 · 1. Introduction. Cross-coupling reactions have proven very useful tools for organic and organometallic chemists allowing the selective coupling of C C bonds. However, there is one major drawback in terms of environmental cost, that is, many cross-coupling reactions requiring a transmetallation step concurrently generate a stoichiometric amount of metal salt as waste, for …

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  • Engineering couplings for exciton transport using ...

    2021-3-11 · The steady-state absorbance spectra of the chromophore-DNA constructs indicate the formation of aggregates (Figure 1B).The linear absorption spectrum of the monomer features a peak at 18,150 cm −1 and a pronounced vibronic progression from the strong coupling between the S 0 S 1 electronic transition and a C–C stretching mode. 56 The linear absorption spectra of the …

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  • Programmable Self‐Locking Micromachines with Tunable

    of locking couplings can be modulated by changing the exposure dosage of femtosecond laser pulses of DLW. Self-locking function of micromachines with tunable couplings offers various potential applications at the microscale, such as cell grasping and binding. From a broader perspective, this strategy of deformation coordi-

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  • [1603.03164] Classical Integrability for Three-point ...

    2016-3-10 · Abstract: In this paper, we develop a new method of computing three-point functions in the SU(2) sector of the mathcal{N}=4 super Yang-Mills theory in the semi-classical regime at weak coupling, which closely parallels the strong coupling analysis. The structure threading two disparate regimes is the so-called monodromy relation, an identity connecting the three-point …

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  • Heck Couplings at Room Temperature in Nanometer

    2021-3-12 · A nonionic amphiphile such as Triton X-100 or the vitamin E-based PTS, both of which form nanomicelles in water, promotes Heck cross-couplings of non-water-soluble partners at ambient temperatures. These are the first examples of Heck reactions conducted in water (as the only solvent) at room temperature.

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  • About Shaft Couplings | NBK | The Motion Control

    2016-7-8 · About Shaft Couplings. A shaft coupling is a mechanical component that connects the drive shaft and driven shaft of a motor, etc., in order to transmit power. Shaft couplings introduce mechanical flexibility, providing tolerance for shaft misalignment. As a result, this coupling flexibility can reduce uneven wear on the bearing, equipment ...

    Get Price
  • flexible couplings - RS Components

    2019-10-13 · the coupling’s main function. This is known as the Compliance mechanism where compliance is the capacity for allowing relative displacement. Several factors should always be taken into consideration when looking to specify flexible shaft couplings. These are torsional stiffness, backlash, torque, life and attachment system. All of these have

    Get Price
  • Hydraulic Couplings - cejn.su

    2021-6-11 · pneumatic couplings to function with-out failure. CEJN coupling products in the high-pressure hydraulic market include quick connect cou-plings with operating pressures up to 300 MPa, porting blocks, pressure gauges, and adapters for a wide variety of fluid applications.

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  • Geared variable speed couplings | Voith

    Function – Low output speeds. The R..B geared variable speed coupling serves to convert the motor speed to a lower output speed just like the R.. A type. A bevel-gear is located at the output of the hydrodynamic variable speed coupling. The driven machine is arranged at a …

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  • Coupling Credible Failure Modes and Owner Options to Intervene

    2021-5-15 · catastrophic failure. These couplings can be classified two ways, either by how they function or how they are used. The two functional distinctions of couplings are mechanical sliding element (e.g. Gear) and flexible metallic element (e. g. Disc, Diaphragm) and their usage can be separated into either general purpose or special purpose couplings.

    Get Price
  • Use of a nonlinear controller with dynamic couplings in ...

    2021-5-21 · Function F ∼ η is defined in ... As can be observed in Figure 13(a) and (b), linear velocity couplings are more than 10 times less than for vehicle 1, but angular velocity couplings have comparable values. The velocities x ...

    Get Price
  • Hydraulic Quick Couplers | Parker - MFCP

    2021-6-28 · Parker Hydraulic Straight-Thru couplings. Parker Hydraulic Straight-Thru couplings have no valves in either half and are ideal for maximum flow application. Their smooth, open bore offers the lowest pressure drop of any quick disconnect coupling, and allows them to be thoroughly cleaned. Since there are no valves in either half, fluid flow ...

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  • Two-dimensional spectroscopy of electronic couplings in ...

    title = 'Two-dimensional spectroscopy of electronic couplings in photosynthesis', abstract = 'Time-resolved optical spectroscopy is widely used to study vibrational and electronic dynamics by monitoring transient changes in excited state populations on a femtosecond timescale. Yet the fundamental cause of electronic and vibrational dynamics-the ...

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  • SLE safety coupling - Precision couplings : R+W America ...

    Service life: These couplings are maintenance free and stable over their entire service life if technical limits are not exceeded. Tolerance: Overall clearance between shaft and hub 0.01-0.05mm. Function system: W = single position engagement (standard) D = multi position engagement every 60° (30, 45, 90° optional) Design/Features: extremely ...

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  • Reliable Speed Control. Geared Variable Speed Couplings

    2017-1-25 · of the couplings is 99.97%. The range of application includes powers up to 30 MW and output speeds up to 20,000 rpm. The standard motor and the geared variable speed coupling form a strong pairing ... 10 Function • The hydrodynamic variable speed coupling is fi lled via the working oil control valve.

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  • Hydraulic Couplings - cejn.su

    2021-6-11 · pneumatic couplings to function with-out failure. CEJN coupling products in the high-pressure hydraulic market include quick connect cou-plings with operating pressures up to 300 MPa, porting blocks, pressure gauges, and adapters for a wide variety of fluid applications.

    Get Price
  • flexible couplings - RS Components

    2019-10-13 · the coupling’s main function. This is known as the Compliance mechanism where compliance is the capacity for allowing relative displacement. Several factors should always be taken into consideration when looking to specify flexible shaft couplings. These are torsional stiffness, backlash, torque, life and attachment system. All of these have

    Get Price
  • Coupling Credible Failure Modes and Owner Options to Intervene

    2021-5-15 · catastrophic failure. These couplings can be classified two ways, either by how they function or how they are used. The two functional distinctions of couplings are mechanical sliding element (e.g. Gear) and flexible metallic element (e. g. Disc, Diaphragm) and their usage can be separated into either general purpose or special purpose couplings.

    Get Price
  • Rhythmic Network Modulation to Thalamocortical Couplings ...

    However, little is known of what function the rhythmic dynamic may serve in thalamocortical couplings. This work introduced a general approach to investigate the modulatory contribution of rhythmic scalp network to the thalamo-frontal couplings in juvenile myoclonic epilepsy (JME) and frontal lobe epilepsy (FLE).

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  • EXACT PARTITION FUNCTION FOR THE POTTS MODEL

    2000-1-2 · We present exact calculations of partition function Z of the q-state Potts model with next-nearest-neighbor spin–spin couplings, both for the ferromagnetic and antiferromagnetic case, for arbitrary temperature, on n-vertex ladders with …

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  • (PDF) Nonreciprocal multimode and indirect couplings in ...

    (2) describe two FVMSW modes which induce the couplings, the magenta line indicates the cavity mode frequency located at 10.05 GHz, and orange curves are fit …

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  • Pd-Catalysed carbonylative Suzuki–Miyaura cross

    2021-1-7 · The dual function and role of iron(0) pentacarbonyl [Fe(CO) 5] has been identified in gaseous CO-free carbonylative Suzuki–Miyaura cross-couplings, in which Fe(CO) 5 supplied CO in situ, leading to the propagation of catalytically active Pd–Fe nanoparticles.Compared with typical carbonylative reaction conditions, CO gas (at high pressures), specialised exogenous ligands and …

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  • Critical couplings in topological-insulator waveguide ...

    Selective critical couplings of TI-WGMs to the TI waveguide, serving as perfect absorbers. (a) Sample image and experimental configuration. The left side of the sample is a vertical straight TI waveguide, with a port at the bottom (P1) and a port at the top (P2), a hexagonal TI cavity on the right side and a spacing of eight molecular layers.

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  • What is Coupling? What are main Types of Couplings ...

    2017-1-25 · of the couplings is 99.97%. The range of application includes powers up to 30 MW and output speeds up to 20,000 rpm. The standard motor and the geared variable speed coupling form a strong pairing ... 10 Function • The hydrodynamic variable speed coupling is fi lled via the working oil control valve.

    Get Price
  • Couplings and Their Types – IspatGuru

    2021-6-1 · New method enables nonadiabatic dynamics based on energy-gaps' time-derivatives. In brief: We proposed a novel model for computing approximated nonadiabatic couplings, named time-dependent Baeck-An (TD-BA). In TD-BA, couplings are a function of the energy gaps and their second time-derivatives. TD-BA be directly employed in fewest-switches surface hopping.

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  • Sealing Function - CavMac

    Morris couplings provide an economical connecting method of joining conveying pipes together. The Morris coupling range is serving the pneumatic conveying industry with a complete line of precision quality coupling and tubing products. They can be used in both pressure and vacuum applications. Installation usually requires no special preparation of the pipe ends.

    Get Price
  • Reliable Speed Control. Geared Variable Speed Couplings

    Selective critical couplings of TI-WGMs to the TI waveguide, serving as perfect absorbers. (a) Sample image and experimental configuration. The left side of the sample is a vertical straight TI waveguide, with a port at the bottom (P1) and a port at the top (P2), a hexagonal TI cavity on the right side and a spacing of eight molecular layers.

    Get Price
  • Surface Hopping with Baeck-An Couplings – Light and

    2021-1-14 · Excitonic systems in the condensed phase are controlled by electrodynamic couplings between the chromophores and between the chromophores and the surrounding environment. Here, we develop a DNA-based platform for excitonic systems with tunable couplings that we characterize using ultrafast multidimensional spectroscopy, single-molecule spectroscopy, and …

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  • Morris Couplings - DMN-WESTINGHOUSE

    2020-4-1 · The intrinsic damping rates of the cavity mode and the magnon mode are 15 MHz and 1.1 MHz, respectively. The external damping rate of the cavity mode is 880 MHz. Top panel: coherent coupling strength J 2π = 0 MHz and dissipative coupling strength Γ 2π = 10 MHz. Middle panel: J 2π = 10 MHz and Γ 2π = 0 MHz.

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  • Critical couplings in topological-insulator waveguide ...

    2021-6-30 · This function iterates through all possible couplings up to a given cutoff distance and then determines the possible pairs at fixed distances (up to round-off errors). Parameters. max_dx – Maximal index for each index of dx to iterate over. You need large enough values to include every possible coupling up to the desired distance, but ...

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  • What is Coupling? What are main Types of Couplings ...

    Morris couplings provide an economical connecting method of joining conveying pipes together. The Morris coupling range is serving the pneumatic conveying industry with a complete line of precision quality coupling and tubing products. They can be used in both pressure and vacuum applications. Installation usually requires no special preparation of the pipe ends.

    Get Price
  • Couplings and Their Types – IspatGuru

    2020-4-1 · The intrinsic damping rates of the cavity mode and the magnon mode are 15 MHz and 1.1 MHz, respectively. The external damping rate of the cavity mode is 880 MHz. Top panel: coherent coupling strength J 2π = 0 MHz and dissipative coupling strength Γ 2π = 10 MHz. Middle panel: J 2π = 10 MHz and Γ 2π = 0 MHz.

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  • What are Couplings? | Types of Couplings and their ...

    This is a value under the condition where the static torsional stiffness at 20°C is 100%. The change of MFB and MFBS in torsional stiffness due to temperature is small and the change in responsiveness is extremely small. If the unit is used under higher temperature, be careful about misalignment due to elongation or deflection of the shaft ...

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  • Morris Couplings - DMN-WESTINGHOUSE

    Temperature range: -30° C to +120°C (-22° F to +248° F) Service life: These couplings are maintenance free and stable over their entire service life if technical limits are not exceeded. Tolerance: Overall clearance between shaft and hub 0.01-0.05mm. Design/Features: extremely lightweight construction.

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  • Dissipative couplings in cavity magnonics: Journal of ...

    正在查看 10,共 11 显示更多 关闭 SCFF Couplers Heavy duty Screw-to-Connect type of couplings for demanding applications with flat face valves to avoid spillage and protect the environment. Best in class flow and burst values, integrated swivel function. ...

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  • MFB-20_Flexible Couplings - Bellows Type|NBK | The

    Predict protein structure, function and mutations using evolutionary sequence covariation. Installation and setup Installing the Python package. If you are simply interested in using EVcouplings as a library, installing the Python package is all you need to do (unless you use functions that depend on external tools).

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  • SLP : R+W Couplings

    2019-5-20 · 1983年11月获北京师范大学理学博士学位,是我国自己培养的第一批博士之一。自1980年起任教于北京师范大学数学系(今数学学院),从事概率论研究。1985年起任教授,1990年起为博士生导师,期间1986年10月至1987年9月曾任英国Edinburgh大学海外研究员。

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