By generating a Brillouin laser in an optical microresonator, we realize soliton Kerr microcomb through exciting the frequency comb using generated same cavity. The intracavity pumping scheme enables us to access states with blue-detuned input pump. Because of ultranarrow linewidth and low-noise properties laser, observed exhibits narrow-linewidth lines stable repetition rate. Also, demonstrate microwave signal phase noise $\ensuremath{-}49\text{ }\text{ }\mathrm{dBc}/\mathrm{Hz}$ at 10 Hz,...

Purpose Digital transformation misalignment refers to disparities in digital levels between suppliers and buyers across the production operation process. It has negatively affected supply chain stability. However, existing research concerning economic consequences not been adequately addressed. Therefore, this paper aims investigate whether such increases supplier financial risk identify factors influencing relationship. Design/methodology/approach This examines binary combinations of listed...

This paper employs panel data from Chinese A-share listed firms between 2008 and 2022 to quantitatively assess the fixed effects of executive financial backgrounds on corporate digital transformation across multiple dimensions, as well mediating effect financialisation threshold green technology innovation. The marginal contribution this lies in analysing mechanism impact executives' background transformation, expanding boundaries research field, increasing dimensions revealing current...

We present a lattice QCD calculation of the transversity isovector- and isoscalar-quark parton distribution functions (PDFs) proton utilizing perturbative matching at next-to-leading-order (NLO) accuracy. Additionally, we determine isovector isoscalar tensor charges for proton. In both calculations, disconnected contributions to matrix elements have been ignored. The calculations are performed using single ensemble <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"...

ABSTRACT Could building the Internet improve green growth of production in cities and thereby realize economic progress high quality? Utilizing a quasi‐natural experiment from implementation “Broadband China,” study explores role construction propelling urban regions China. Its consequences illuminate that could significantly elevate transformation development. Furthermore, this advancement is facilitated via mechanisms technological innovation, optimized industrial structure, as well...

We realize a chip-based Brillouin microlaser with remarkable features of high power and low noise using microtoroid resonator. Our is able to output up 126 mW fundamental linewidth down 245 mHz. Additionally, in the course lasing we observe an intriguing saturation-like effect, which can be attributed complex thermo-optic-effect-induced mode mismatch between pump modes. To have quantitative understanding this phenomenon, develop model by simultaneously considering thermo-optic effect...

The world is undergoing major changes unseen in a century. profound and complex the international trade landscape since China's accession to WTO have put foreign enterprises test as they embarked on path of transformation upgrade. As barometer sector, Yiwu has progressed through three stages development: rapid development after accession, adaptation innovation following global financial crisis, coordinated amid deepening reforms. This paper explores such an evolutionary journey from...

We present the results of a Lattice QCD computation pion generalized parton distribution (GPD), employing perturbative matching up to next-to-next-to-leading order (NNLO). The computations are based on an ensemble $N_f=2+1$ highly improved staggered quarks (HISQ) with mass 300 MeV and lattice spacing 0.04 fm. Centered zero-skewness limit, we utilize recently proposed Lorentz-invariant definition GPD, which is derived from amplitudes. analyze compare these amplitudes in both Breit non-Breit...

We demonstrate the fabrication of ultrahigh quality ( Q ) factor silica microdisk resonators on a silicon chip by inductively coupled plasma (ICP) etching. achieve dry-etched optical microresonator with an intrinsic as high <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="m1"> <mml:mrow> <mml:mn>1.94</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> </mml:mrow> <mml:mn>8</mml:mn> </mml:msup> </mml:math> from 1-mm-diameter thickness 4 μm. Our work...

Innovation is the driving force of social and economic development, there a certain consensus that financing constraints inhibit enterprise innovation. However, role Other People's Money strategy in link between innovation largely ignored. Using sample A-share non-financial listed companies from 2008 to 2017, this study first examines relationship then investigates link. In addition, we explore how impact varies with firm type (state-owned [SOE] vs. non-SOE) level regional financial...

We present a lattice QCD calculation of the transversity isovector- and isoscalar-quark parton distribution functions (PDFs) proton utilizing perturbative matching at next-to-leading-order (NLO) accuracy. Additionally, we determine isovector isoscalar tensor charges for proton. In both calculations, disconnected contributions to matrix elements have been ignored. The calculations are performed using single ensemble $N_f = 2 +1$ highly-improved staggered quarks simulated with physical-mass...

We present a first Lattice Quantum Chromodynamics (QCD) prediction for the electromagnetic form factors (EMFFs) of pion and kaon up to very large momentum transfers, i.e., $Q^2\sim$ 10 28 GeV$^2$, respectively. Our calculations utilize Wilson-clover fermions within $N_f=2+1$ Highly Improved Staggered Quark (HISQ) ensemble at physical point. For pion, we employ lattice spacing $a=0.076$ fm, kaon, use two spacings, $a=0.04$ $0.076$ mitigate discretization effects. The renormalized results...

We report the first lattice QCD computation of pion and kaon electromagnetic form factors, $F_M(Q^2)$, at large momentum transfer up to 10 28 $\mathrm{GeV}^2$, respectively. Utilizing physical masses two fine lattices, we achieve good agreement with JLab experimental results $Q^2 \lesssim 4~\mathrm{GeV}^2$. For \gtrsim 4~\mathrm{GeV}^2$, our provide $\textit{ab-initio}$ benchmarks for forthcoming experiments 12 GeV future electron-ion colliders. also test collinear factorization framework...

In this work, we report a lattice calculation of $x$-dependent valence pion generalized parton distributions (GPDs) at zero skewness with multiple values the momentum transfer $-t$. The calculations are based on an $N_f=2+1$ gauge ensemble highly improved staggered quarks Wilson-Clover fermion. spacing is 0.04 fm, and mass tuned to be 300 MeV. We determine Lorentz-invariant amplitudes quasi-GPD matrix elements for both symmetric asymmetric momenta transfers similar show equivalence frames....

The orientation of higher vocational colleges in the new era is to cultivate students' practical operation ability and innovation entrepreneurship ability. article consults draws on theories related ability, organizes research results a large number experts scholars uses literature methods such as data, expert interviews, logical analysis conduct in-depth cultivation students from awareness, thinking establishment, knowledge reserve practice. Based problems existing process cultivating...

The pion and tensor vacuum susceptibilities are calculated in the framework of renormalizable Dyson–Schwinger equations. A comparison with results other nonperturbative QCD approaches is given.

The financial structure of a firm is often regarded as the most essential factor influencing its operating performance. real estate industry, an important part China's current national economy, typical capital-intensive industry with large demand for capital. However, industry's characteristics lead to relatively slow return capital in putting pressure on financing capacity and structure. This paper divides into two components: gearing ratio debt structure, takes listed companies from 2010...

With the changing and development of time, computers have been widely used in pharmaceutical field China.This paper mainly analyzes summarizes application pharmacy.For example: The processing experimental data, analysis drug structures, many large-scale devices need computer assistance.The combination o f pharmacy brings great convenience to researchers.This introduces several technologies field, advantages combining with these technologies.Through aid computers, it reflects computer's...

With the continuous development of society, human beings are in midst profound changes. The new information thinking has penetrated into study, work and life. application technology become an important direction for teaching reform chemistry. By analyzing status education teaching, this paper concludes that construction resources needs to be improved, still strengthened, proposes idea integrating it with innovation development, using technology. Improve concepts chemistry subjects, improve...

A new approach for calculating vacuum susceptibilities from an effective quark-quark interaction model is derived. As a special case, the vector susceptibility calculated. comparison with results of previous approaches given.