Photon-counting detector based computed tomography (PCCT) has greatly advanced in recent years. However, the spectral inconsistency is still a serious challenge for PCCT that could directly introduce obvious artifacts and severe inaccuracies. This work attempts to overcome by modeling novel, unified, two-term factorized framework, with skew term independent of energy threshold, an energy-threshold bias analytical characterization term. To solve inconsistency, two-step decomposition algorithm...

ABSTRACT Tungsten delay compositions are widely utilized in ammunition, small detonators, and other devices. In this study, we first explored the changes burning rate of micron‐sized tungsten (W/BaCrO 4 /KClO ) when achieving zero oxygen balance under different material tube walls. Subsequently, SiO 2 , CuO, BN, shellac were added to composition investigate variations samples aluminum tubes. The experimental results reveal that combustion decreases with an increase thermal conductivity wall....

Previous studies have confirmed that intervertebral disc degeneration (IDD) is closely associated with inflammation-induced reactive oxygen species (ROS) and resultant cell mitochondrial membrane potential (MMP) decline. Clearance of ROS in an inflammatory environment essential for breaking the vicious cycle MMP Additionally, re-energizing mitochondria damaged milieu to restore their function, equally important. Herein, we proposed interesting concept mitochondrion-engine equipped coolant,...

Compared with the conventional multi-scroll attractor, multi-wing butterfly chaotic attractors are easier to design and implement through analog circuitry, thus they has more potential applications. In this paper, a system four-wing is designed dynamic behaviors analyzed in terms of phase diagram, bifurcation Lyapunov exponential spectrum C <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> structural complexity. It found that each...

To determine whether the capability of CMIP6 version Beijing Climate Center (BCC) models (BCC-ESM1 and BCC-CSM2-MR) in simulating China summer surface air temperature (SAT) has improved, we presented a multidimensional evaluation SAT including trends, modes, influencing factors. Critical comparisons are also made with results CMIP5 (BCC-CSM1.1 BCC-CSM1.1m). In general, CMIP6, especially BCC-CSM2-MR, smaller deviations means, mutations, maximum centers, variances, spatial patterns dominant...

A two-stage oxidation—alkali leaching—acid leaching method was proposed to recovery Fe, V, and Ti in modified Ti-bearing blast furnace slag. The optimal experiment conditions of iron extraction were one-stage oxidation time 40 s holding 8 min. rate 89.93%. optimum vanadium total 126 s, NaOH concentration 4.0 mol/L, temperature 95 °C, 90 min, the number cycle 4. 92.13%. titanium HCl 4.5 75 TiO2 content synthetic rutile 98.61%.

Because of the small size, controlled mobility, and versatile functionalities, micro-/nanoscale swimmers have drawn great attention shown various potential applications, ranging from biomedicine to environmental remediation, such as minimal invasive surgery, targeted therapy, cell manipulation, heavy metal ions adsorption in waste water, so on. Development meets different challenges compared with traditional large-size robots, because Renyolds number is very (10 - 5–10 2) their movement...

Meniscus, the cushion in knee joint, is a load-bearing tissue that transfers mechanical forces to extracellular matrix (ECM) and resident cells. The mechanoresponse of human stem/progenitor cells meniscus (hMeSPCs) significant homeostasis regeneration but not well understood. This study reports mild cyclic tensile loading regimen ~1,800 loads/day on hMeSPCs seeded 3-dimensional (3D) photocrosslinked gelatin methacryloyl (GelMA) hydrogel critical maintaining cellular homeostasis....

To date, solar cells with efficiency of 12.6% has been demonstrated via a hydrazine-based solution approach.Despite this progress, performance Cu 2 ZnSn(S,Se) 4 remains far lower than the Shockely-Quiser theoretical limit.We performed density functional theory calculations hybrid approach to investigate Mg-related defects in kesterite structure ZnSnS (CZTS) cell material.The substitution energies Mg atom CZTS were calculated consideration atomic chemical potentials constituent elements Cu,...

摘要:

Most conventional air pollutants and carbon dioxide (CO 2 ) are simultaneously emitted from the same sources, providing a sound theoretical basis for synergistic governance of these emissions. At present, China faces severe challenges in protecting eco-environment, such as reducing pollutants, improving environmental quality, peaking CO Internationally, control greenhouse gas (GHG) emissions has been incorporated into comprehensive management system major developed economies United States...

Artificial neural circuits can effectively reproduce the main biophysical properties of neurons when reliable electronic components with unique physical are introduced. Connecting memristor to not only enhances potential controllability under external stimuli but also recognizes effects electromagnetic induction on activity. In this paper, piezoelectric ceramic and embedded in FitzHugh-Nagumo (FHN) circuit, then two kinds functional neuron models magnetic field-control electric obtained,...

While generative models have made significant advancements in recent years, they also raise concerns such as privacy breaches and biases. Machine unlearning has emerged a viable solution, aiming to remove specific training data, e.g., containing private information bias, from models. In this paper, we study the machine problem Image-to-Image (I2I) Previous studies mainly treat it single objective optimization problem, offering solitary thereby neglecting varied user expectations towards...

ABSTRACT In response to issues such as poor accuracy and unstable delay times encountered in the practical use of tungsten‐based compositions, an analysis combustion performance compositions with addition copper oxide was conducted. This study selected five composite prepared by blending at different content, aiming investigate influence varying proportions on characteristics compositions. Microscopic morphologies thermal decomposition behaviors tungsten/copper were analyzed using scanning...

&lt;p&gt;This paper was concerned with the inhomogeneous optical fiber model, which governed by a nonlinear Schrödinger equation variable coefficients. By spectral analysis for Lax pair of equation, corresponding Riemann-Hilbert problem formulated. solving simple poles, formula multi-soliton solutions derived. Finally, we considered soliton control system and obtained one-soliton two-soliton.&lt;/p&gt;

北海道育成のコムギ品種ハルユタカは, 西日本暖地で栽培すると登熟期間を通じて緑色表面積指数（GAI）が高いものの, 純同化率（NAR）が低く, 個体群成長速度（CGR）が低くなるために粒重が低下する. ハルユタカは群落が過繁茂となるため, これら現象がみられると仮定し, 止葉, 第2葉を残して止葉期に下位葉をすべて取り除いた下位葉除去処理と発生した分げつをすべて取り除いた分げつ除去処理を行い, 過繁茂を解消することでNARおよび粒重が増加するかどうかについて検討した. 下位葉除去処理は, 年次によってはハルユタカの千粒重を増加した. その際, 処理により登熟期間のNARが増加し, CGRが増加した. さらに下位葉除去処理はハルユタカの開花期から乳熟期にかけて稈の可溶性炭水化物含有率を高め, 成熟期にこれを子実へと転流させていることが示唆された. 分げつ除去処理は, ハルユタカの千粒重を高めたものの, 穂数が減少して粒数が大きく減少した. 下位葉除去処理の結果は, ハルユタカが粒数を十分に確保し, ソース/シンク比を大きく減少させたとしても,...

The atomic and molecular reaction dynamics for O+DT has been studied on the potential energy function of DTO (¹A₁) by Monte-Carlo quasi-classical trajectory approach. It is shown that O+DT→DTO with a long-lived complex threshold at low collision energy, which agrees surface. interchange reactions are increased increasing, until molecules will decompose into D, T, O completely, these have too. trajectories sections O+DT(0,0)→D+OT O+DT(0,0)→T+OD present asymmetrical...

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