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Production of Charged Scalars from the Littlest Higgs Model Associated with Top Quark at LHC

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Communications in Theoretical Physics 2008年第5期49卷 1279-1282页

作者： LIU Yao-Bei shen jie-fen CUI Xiao-Min REN Xiao-Yan Scholl of Machinery and Electricity Henan Institute of Science and Technology Xinxiang 453003 China Department of Life Science and Technique Xinxiang Medical University Xinxiang 453003 China

The littlest Higgs （LH） model is the most economical one among various little Higgs models, which predicts the existence of the charged scalars Φ^±. In this paper, we study the production of the charged Higgs boson Φ^- with single top quark via the process gb →tΦ^- at the CERN Large Hadron Collider （LHC）. The numerical results show that the production cross section is sma/ler than 0.2 pb in most of the parameters space, it is very difficult to observe the signatures of the charged scalars via the process pp → gb ＋ X → tΦ^- ＋ X at the LHC experiments. However, it can open a window to distinguish the top-pions in the TC2 model or charged Higgs in the MSSM from Φ^±.

关键词： littlest Higgs model charged scalars cross section

Single Production of a Heavy T -Quark in the Left-Right Twin Higgs Model at LHeC

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Chinese Physics Letters 2011年第11期28卷 72-75页

作者： shen jie-fen CUI Xiao-Min LI Yu-Qi GAO Yin-Hao Department of Life Science and Technology Xinxiang Medical UniversityXinxiang 453003 Henan Institute of Science and Technology Xinxiang 453003

In the context of the left-right twin Higgs model,we study single production of a𝑇-quark at the Large Hadron electron Collider based𝑒ep and γpcolliders,which proceed via the processes𝑒e+b𝑏→ˉveT and𝛾γp→W−*** the main decay mode𝑇T→Φ+b𝑏→tbbˉ,these two processes mainly transfer to the final states of 3b+l(e or μ)+missing Et and 3b𝑏+2l𝑙+missing𝐸𝑇,*** the electron energy𝐸Ee=500 GeV and photon energy𝐸Ep=7TeV,we find that the production rates can reach tens fb when the heavy𝑇−quark mass𝑚mt<600 GeV.A simple phenomenological analysis is also given for the decay modeT→W+b𝑏.Our numerical results show that the SM background can be reduced by applying a cut on the transverse momentum of the final𝑏b-quark and the invariant mass of ***,such a channel is only useful for a tiny parameter space.

关键词： space quark Higgs

Remaining Life Prediction Method for Photovoltaic Modules Based on Two-Stage Wiener Process

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Energy Engineering 2025年第1期122卷 331-347页

作者： jie Lin Hongchi shen Tingting Pei Yan Wu School of Electrical Engineering and Information Engineering Lanzhou University of TechnologyLanzhou730050China

Photovoltaic (PV) modules, as essential components of solar power generation systems, significantly influence unitpower generation *** service life of these modules directly affects these costs. Over time, the performanceof PV modules gradually declines due to internal degradation and external environmental *** cumulativedegradation impacts the overall reliability of photovoltaic power generation. This study addresses the complexdegradation process of PV modules by developing a two-stage Wiener process model. This approach accountsfor the distinct phases of degradation resulting from module aging and environmental influences. A powerdegradation model based on the two-stage Wiener process is constructed to describe individual differences inmodule degradation processes. To estimate the model parameters, a combination of the Expectation-Maximization(EM) algorithm and the Bayesian method is employed. Furthermore, the Schwarz Information Criterion (SIC) isutilized to identify critical change points in PV module degradation trajectories. To validate the universality andeffectiveness of the proposed method, a comparative analysis is conducted against other established life predictiontechniques for PV modules.

关键词： Photovoltaic modules degradation stochastic processes lifetime prediction

Ru doping triggering reconstruction of cobalt phosphide for coupling glycerol electrooxidation with seawater electrolysis

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Journal of Energy Chemistry 2025年第1期100卷 317-326页

作者： Binglu Deng jie shen Jinxing Lu Chuqiang Huang Zhuoyuan Chen feng Peng Yunpeng Liu School of Materials Science and Hydrogen Energy Foshan University School of Chemistry and Chemical Engineering Guangzhou University Guangdong Key Laboratory for Hydrogen Energy Technologies

Seawater electrolysis is a promising approach for sustainable energy without relying on precious ***,the large-scale seawater electrolysis is hindered by low catalytic efficiency and severe anode corrosion caused by the harmful *** contrast to the oxygen evolution reaction （OER）and chlorin ion oxidation reaction （ClOR）,glycerol oxidation reaction （GOR） is more thermodynamically and kinetically favorable ***,a Ru doping cobalt phosphide （Ru-CoP2） is proposed as a robust bifunctional electrocatalyst for seawater electrolysis and GOR,for the concurrent productions of hydrogen and value-added *** in situ and ex situ characterization analyses demonstrated that Ru doping featured in the dynamic reconstruction process from Ru-CoP2to Ru-CoOOH,accounting for the superior GOR *** coupling GOR with hydrogen evolution was realized by employing Ru-CoP2as both anode and cathode,requiring only a low voltage of 1.43 V at 100 mA cm-2,which was 250 m V lower than that in alkaline *** work guides the design of bifunctional electrocatalysts for energy-efficient seawater electrolysis coupled with biomass resource upcycling.

关键词： Anodes

小Higgs模型对顶夸克在eγ对撞机上产生的影响(英文)

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高能物理与核物理 2007年第7期31卷 607-611页

作者：刘要北申杰奋王学雷河南科技学院新乡453003 新乡医学院新乡453003 河南师范大学物理与信息工程学院新乡453007

在最小Higgs模型和T宇称下的最小Higgs模型中,计算了单个顶夸克的产生过程e^-γ→v_eb(?)的产生截面,并讨论了这两种模型对该过程产生截面的贡献．发现在合适的参数范围内,来自T宇称下的最小Higgs模型中对Wtb耦合的修正项对该过程产生... 详细信息

在最小Higgs模型和T宇称下的最小Higgs模型中,计算了单个顶夸克的产生过程e^-γ→v_eb(?)的产生截面,并讨论了这两种模型对该过程产生截面的贡献．发现在合适的参数范围内,来自T宇称下的最小Higgs模型中对Wtb耦合的修正项对该过程产生截面的相对修正大于5%,这种影响能在将来的直线对撞机实验中探测到．然而,在最小Higgs模型中,新的规范玻色子W_H~±对该过程的贡献非常小．

关键词：最小Higgs模型 T宇称产生截面

结合雌激素对去势雌性大鼠骨量和血脂代谢的影响

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上海医科大学学报 2000年第3期27卷 208-210页

作者：沈婕张绍芬上海医科大学妇产科医院妇科上海200011

目的　了解结合雌激素倍美力对去势雌性大鼠的骨量和血脂的影响。方法　鼠龄 6月的Wistar雌鼠30只 ,分为假手术 (SHAM )组、卵巢切除 (OVX)组、卵巢切除加倍美力 (OVX +E)组。双侧卵巢去势或假手术后7d ,每天予倍美力 0 .5mg/kg体重或... 详细信息

目的　了解结合雌激素倍美力对去势雌性大鼠的骨量和血脂的影响。方法　鼠龄 6月的Wistar雌鼠30只 ,分为假手术 (SHAM )组、卵巢切除 (OVX)组、卵巢切除加倍美力 (OVX +E)组。双侧卵巢去势或假手术后7d ,每天予倍美力 0 .5mg/kg体重或安慰剂 ,共 3月。处死大鼠时 ,测定 3组全身骨密度、股骨骨密度、股骨去脂干重、灰重、骨钙含量、抗弯力强度、子宫湿重、血清碱性磷酸酶AKP、血清钙、尿Ca/Cr及总胆固醇 (TC)、三酰甘油 (TG)、血浆高密度脂蛋白 (HDL c)、低密度脂蛋白 (LDL c)、载脂蛋白A(ApoA)、载脂蛋白B(ApoB)。结果　OVX +E组的全身骨密度、去脂干重、灰重、子宫湿重、血浆HDL c、TG水平明显高于OVX组 ,而血浆LDL c、TC水平明显低于OVX组 ,其TG水平也明显高于SHAM组 ,其他骨量及血脂指标各组之间差异无显著性。结论　结合雌激素能抑制Wistar雌鼠去势后的骨丢失 ,升高血浆HDL c水平 ,降低血浆LDL c和TC水平 ,对骨骼和心血管系统有保护作用。

关键词：骨密度脂蛋白大鼠结合雌激素绝经后