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Association of the glycemic background patterns and the diabetes management efficacy in poorly controlled type 2 diabetes
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作者 Ayşe N Erbakan Müzeyyen Arslan Bahadır +6 位作者 FatoşN Kaya Büşra Güleç MiraçVural Keskinler Ümmügülsüm AktemurÇelik Özge Faydalıel Banu Mesçi Aytekin Oğuz 《World Journal of Diabetes》 SCIE 2025年第1期74-90,共17页
BACKGROUND Inadequate glycemic control in patients with type 2 diabetes(T2DM)is a major public health problem and a significant risk factor for the progression of diabetic complications.AIM To evaluate the effects of ... BACKGROUND Inadequate glycemic control in patients with type 2 diabetes(T2DM)is a major public health problem and a significant risk factor for the progression of diabetic complications.AIM To evaluate the effects of intensive and supportive glycemic management strategies over a 12-month period in individuals with T2DM with glycated hemoglobin(HbA1c)≥10%and varying backgrounds of glycemic control.METHODS This prospective observational study investigated glycemic control in patients with poorly controlled T2DM over 12 months.Participants were categorized into four groups based on prior glycemic history:Newly diagnosed,previously well controlled with recent worsening,previously off-target but now worsening,and HbA1c consistently above 10%.HbA1c levels were monitored quarterly,and patients received medical,educational,and dietary support as needed.The analysis focused on the success rates of good glycemic control and the associated factors within each group.RESULTS The study showed significant improvements in HbA1c levels in all participants.The most significant improvement was observed in individuals newly diagnosed with diabetes:65%achieved an HbA1c target of≤7%.The results varied between participants with different glycemic control histories,followed by decreasing success rates:39%in participants with previously good glycemic control,21%in participants whose glycemic control had deteriorated compared to before,and only 10%in participants with persistently poor control,with mean HbA1c levels of 6.3%,7.7%,8.2%,and 9.7%,respectively.After one year,65.2%of the“newly diagnosed patients”,39.3%in the“previously controlled group”,21.9%in the“previously off-target but now worsened'”group and 10%in the“poorly controlled from the start”group had achieved HbA1c levels of 7 and below.CONCLUSION In poorly controlled diabetes,the rate at which treatment goals are achieved is associated with the glycemic background characteristics,emphasizing the need for tailored strategies.Therefore,different and comprehensive treatment approaches are needed for patients with persistent uncontrolled diabetes. 展开更多
关键词 Type 2 diabetes mellitus Glycated hemoglobin Glycemic control Patient-centered care Diabetes management glycemic background
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BG-Trap法在伊蚊成蚊监测中的应用研究
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作者 段丽琼 黄谊 +2 位作者 姚松银 龙浩宇 戴携 《中华卫生杀虫药械》 CAS 2024年第2期139-141,共3页
目的采用BG-Trap法进行伊蚊监测,探讨该方法应用于登革热蚊媒常规监测和应急监测的可行性。方法在伊蚊监测场所用BG-Trap法分时段进行监测,用非参数统计分析的Chi-Square过程和t检验对监测结果进行统计和分析。结果应用BG-Trap法对伊蚊... 目的采用BG-Trap法进行伊蚊监测,探讨该方法应用于登革热蚊媒常规监测和应急监测的可行性。方法在伊蚊监测场所用BG-Trap法分时段进行监测,用非参数统计分析的Chi-Square过程和t检验对监测结果进行统计和分析。结果应用BG-Trap法对伊蚊进行监测,15:00—17:00监测效果明显高于9:00—11:00(雌:χ^(2)=18963,df=1,P<0001;雄:χ^(2)=18667,df=1,P<0001;总体:χ^(2)=37500,df=1,P<0001);从12:00开始,按每小时一段统计诱蚊效果,以15:00—19:00时段对伊蚊引诱效果最好,平均捕蚊量为(618±21)只/h,平均小时诱蚊量与12:00—15:00有极显著的差异(雌:t=275,df=146,P<0001;雄:t=678,df=156,P<0001;总体:t=1016,df=304,P<0001)。结论可将BG-Trap法引入伊蚊的常规监测和应急监测。 展开更多
关键词 bg-Trap法 白纹伊蚊 常规监测 应急监测
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BG-Trap法与双层叠帐法对登革热媒介白纹伊蚊监测效果的比较
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作者 田野 褚宏亮 +4 位作者 吴治明 张守刚 曹淦 葛小伍 黄立业 《寄生虫与医学昆虫学报》 CAS 2024年第1期28-32,共5页
目的比较BG-trap法与双层叠帐法对登革热媒介白纹伊蚊的监测效果,进一步探讨BG-trap法用于登革热媒介伊蚊监测的可能性,为制定更有效的登革热防控策略提供参考依据。方法实验选取江苏省3个设区市的6个户外监测点,于8—9月的3天时间中,... 目的比较BG-trap法与双层叠帐法对登革热媒介白纹伊蚊的监测效果,进一步探讨BG-trap法用于登革热媒介伊蚊监测的可能性,为制定更有效的登革热防控策略提供参考依据。方法实验选取江苏省3个设区市的6个户外监测点,于8—9月的3天时间中,分别于每日16:00-16:30、17:00-17:30、18:00-18:30三个时段同步开展BG-Trap法和双层叠帐法监测。结果BG-Trap法和双层叠帐法均能够有效地捕获白纹伊蚊的雌蚊,双层叠账法捕获的白纹伊蚊占比高于BG-Trap法(χ^(2)=16.034,P<0.01),两种方法捕获的白纹伊蚊雌蚊构成比之间差异无统计学意义(χ^(2)=0.162,P=0.687)。BG-Trap法捕获的白纹伊蚊平均密度指数为7.85±5.23只/(台·h),低于双层叠帐法的27.04±13.86只/(顶·h),差异有统计学意义(t=6.73,P<0.001)。结论BG-Trap法对登革热媒介白纹伊蚊监测效果不及双层叠帐法,其能否应用于登革热媒介伊蚊监测有待于进一步研究。 展开更多
关键词 bg-Trap法 双层叠帐法 白纹伊蚊 监测
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蚊媒监测BG-trap法的研究进展
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作者 毛赛彩 刘昊 +1 位作者 李苑 唐广心 《中华卫生杀虫药械》 CAS 2024年第6期590-593,共4页
蚊媒密度监测是蚊媒传染病控制的基础。高效的蚊媒监测工具对评估环境蚊媒密度,进而准确评估蚊媒传染病传播风险具有重要意义。BG-trap作为新型的蚊媒监测工具,具有高效、操作简单的优点,目前对BG-trap的研究主要包括引诱剂优化,如优化... 蚊媒密度监测是蚊媒传染病控制的基础。高效的蚊媒监测工具对评估环境蚊媒密度,进而准确评估蚊媒传染病传播风险具有重要意义。BG-trap作为新型的蚊媒监测工具,具有高效、操作简单的优点,目前对BG-trap的研究主要包括引诱剂优化,如优化模拟人体气味引诱剂,二氧化碳及产生途径,生物诱饵等;BG-trap的适用性;BG-trap在蚊媒控制方面的作用。本文通过系统阐述BG-trap的研究进展,以期为进一步优化BG-trap,开发优良的蚊媒监测工具,评估、控制蚊媒传染病传播风险方面研究提供参考。 展开更多
关键词 蚊媒 监测工具 bg-trap
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The CCD instrument background of the SMILE SXI 被引量:2
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作者 M.W.J.Hubbard O.Hetherington +6 位作者 D.J.Hall T.W.Buggey S.Parsons T.Arnold A.Holland C.Pagani S.Sembay 《Earth and Planetary Physics》 EI CSCD 2024年第1期15-24,共10页
The ESA and CAS SMILE mission orbit is highly elliptical and will pass through multiple radiation environments.The Soft X-ray Imager(SXI)instrument aboard has a radiation shutter door designed to close when the surrou... The ESA and CAS SMILE mission orbit is highly elliptical and will pass through multiple radiation environments.The Soft X-ray Imager(SXI)instrument aboard has a radiation shutter door designed to close when the surrounding radiation flux is high.The shutter door will close when passing below an altitude threshold to protect against trapped particles in the Earth’s Van Allen Belts.Therefore,two radiation environments can be approximated based on the shutter door position:open and closed.The instrument background for the CCDs(Charge-Coupled Devices)that form the focal plane array of the SXI were evaluated for the two environments.Due to the correlation of the space environment with the solar cycle,the solar minima and maxima,the background was also evaluated at these two extremes.The results demonstrated that the highest instrument background will occur during solar minima due to the main contributing source being Galactic Cosmic Rays(GCRs).It was also found that the open background was highest for solar minima and that the closed background was highest during solar maxima.This is due to the radiation shutter door acting as a scattering centre and the changes in the energy flux distribution of the GCRs between the two solar extremes. 展开更多
关键词 instrument background X-ray astronomy space radiation
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STABILITY OF TRANSONIC SHOCKS TO THE EULER-POISSON SYSTEM WITH VARYING BACKGROUND CHARGES
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作者 Yang CAO Yuanyuan XING Na ZHANG 《Acta Mathematica Scientia》 SCIE CSCD 2024年第4期1487-1506,共20页
This paper is devoted to studying the stability of transonic shock solutions to the Euler-Poisson system in a one-dimensional nozzle of finite length.The background charge in the Poisson equation is a piecewise consta... This paper is devoted to studying the stability of transonic shock solutions to the Euler-Poisson system in a one-dimensional nozzle of finite length.The background charge in the Poisson equation is a piecewise constant function.The structural stability of the steady transonic shock solution is obtained by the monotonicity argument.Furthermore,this transonic shock is proved to be dynamically and exponentially stable with respect to small perturbations of the initial data.One of the crucial ingredients of the analysis is to establish the global well-posedness of a free boundary problem for a quasilinear second order equation with nonlinear boundary conditions. 展开更多
关键词 Euler-Poisson system transonic shock varying background charges STABILITY
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Characteristics of Lightning Activity in Southeast China and its Relation to the Atmospheric Background
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作者 支树林 朱杰 +1 位作者 刘岩 毛梦妮 《Journal of Tropical Meteorology》 SCIE 2024年第1期76-88,共13页
Based on the lightning observation data from the Fengyun-4A(FY-4A)Lightning Mapping Imager(FY-4A/LMI)and the Lightning Imaging Sensor(LIS)on the International Space Station(ISS),we extract the“event”type data as the... Based on the lightning observation data from the Fengyun-4A(FY-4A)Lightning Mapping Imager(FY-4A/LMI)and the Lightning Imaging Sensor(LIS)on the International Space Station(ISS),we extract the“event”type data as the lightning detection results.These observations are then compared with the cloud-to-ground(CG)lightning observation data from the China Meteorological Administration.This study focuses on the characteristics of lightning activity in Southeast China,primarily in Jiangxi Province and its adjacent areas,from April to September,2017–2022.In addition,with the fifth-generation European Centre for Medium-Range Weather Forecasts reanalysis data,we further delved into the potential factors influencing the distribution and variations in lightning activity and their primary related factors.Our findings indicate that the lightning frequency and density of the FY-4A/LMI,ISS-LIS and CG data are higher in southern and central Jiangxi,central Fujian Province,and western and central Guangdong Province,while they tend to be lower in eastern Hunan Province.In general,the high-value areas of lightning density for the FY-4A/LMI are located in inland mountainous areas.The lower the latitude is,the higher the CG lightning density is.High-value areas of the CG lightning density are more likely to be located in eastern Fujian and southeastern Zhejiang Province.However,the high-value areas of lightning density for the ISS-LIS are more dispersed,with a scattered distribution in inland mountainous areas and along the coast of eastern Fujian.Thus,the mountainous terrain is closely related to the high-value areas of the lightning density.The locations of the high-value areas of the lightning density for the FY-4A/LMI correspond well with those for the CG observations,and the seasonal variations are also consistent.In contrast,the distribution of the high-value areas of the lightning density for the ISS-LIS is more dispersed.The positions of the peak frequency of the FY-4A/LMI lightning and CG lightning contrast with local altitudes,primarily located at lower altitudes or near mountainsides.K-index and convective available potential energy(CAPE)can better reflect the local boundary layer conditions,where the lightning density is higher and lightning seasonal variations are apparent.There are strong correlations in the annual variations between the dew-point temperature(Td)and CG lightning frequency,and the monthly variations of the dew-point temperature and CAPE are also strongly correlated with monthly variations of CG lightning,while they are weakly correlated with the lightning frequency for the FY-4A/LMI and ISS-LIS.This result reflects that the CAPE shows a remarkable effect on the CG lightning frequency during seasonal transitions. 展开更多
关键词 LIGHTNING satellite and ground detections atmospheric background Southeast China
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Gravitational Waves Background, as Well as Some UFO, FRB and Supernova Flares, Are Due to Compressibility of the Spacetime (CoST)
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作者 Evgeny A. Novikov 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第1期67-70,共4页
The recently observed gravitational wave background is explained in terms of the quantum modification of the general relativity (Qmoger). Some UFO, FRB and supernova flares also can be explained in terms of Qmoger.
关键词 Gravitational Wave background Quantum Modification of the General Relativity Compressibility of the Spacetime (CoST)
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BG公司环境会计信息披露问题研究
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作者 张慧敏 谷卓越 《市场周刊》 2024年第10期113-116,178,共5页
作为16大重污染产业之一,钢铁行业的环境会计信息披露备受重视。基于此,文章将BG公司作为主要研究对象,通过对其环境会计信息披露的现状进行分析,找出BG公司在环境会计信息披露中存在的一些问题及原因,并针对这些问题提出相应的解决办法... 作为16大重污染产业之一,钢铁行业的环境会计信息披露备受重视。基于此,文章将BG公司作为主要研究对象,通过对其环境会计信息披露的现状进行分析,找出BG公司在环境会计信息披露中存在的一些问题及原因,并针对这些问题提出相应的解决办法,以达到提高BG公司环境会计信息披露水平的目的,同时期望为同行业其他公司提供一定的参考。 展开更多
关键词 bg公司 环境会计 信息披露
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Comparative Analysis of Energy Characteristics of Two Southwest Vortices in Sichuan Under Similar Circulation Backgrounds
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作者 周春花 张驹 肖红茹 《Journal of Tropical Meteorology》 SCIE 2024年第2期168-179,共12页
Based on ERA5 reanalysis data,the present study analyzed the thermal energy development mechanism and kinetic energy conversion characteristics of two extreme rainstorm processes in relation to the shallow southwest v... Based on ERA5 reanalysis data,the present study analyzed the thermal energy development mechanism and kinetic energy conversion characteristics of two extreme rainstorm processes in relation to the shallow southwest vortex in the warm-sector during a“rain-generated vortex”process and the deep southwest vortex in a“vortex-generated rain”process.The findings were as follows:(1)During the extreme rainstorm on August 11,2020(hereinafter referred to as the“8·11”process),intense surface heating and a high-energy unstable environment were observed.The mesoscale convergence system triggered convection to produce heavy rainfall,and the release of latent condensation heat generated by the rainfall promoted the formation of a southwest vortex.The significant increase(decrease)in atmospheric diabatic heating and kinetic energy preceded the increase(decrease)in vorticity.By contrast,the extreme rainstorm on August 16,2020(hereinafter referred to as the“8·16”process)involved the generation of southwest vortex in a low-energy and highhumidity environment.The dynamic uplift of the southwest vortex triggered rainfall,and the release of condensation latent heat from rainfall further strengthened the development of the southwest vortex.The significant increase(decrease)in atmospheric diabatic heating and kinetic energy exhibited a delayed progression compared to the increase(decrease)in vorticity.(2)The heating effect around the southwest vortex region was non-uniform,and the heating intensity varied in different stages.In the“8·11”process,the heating effect was the strongest in the initial stage,but weakened during the vortex's development.On the contrary,the heating effect was initially weak in the“8·16”process,and intensified during the development stage.(3)The available potential energy of the“8·11”process significantly increased in kinetic energy converted from rotational and divergent winds through baroclinic action,and the divergent wind energy continued to convert into rotational wind energy.By contrast,the“8·16”process involved the conversion of rotational wind energy into divergent wind energy,which in turn converted kinetic energy back into available potential energy,thereby impeding the further development and maintenance of the southwest vortex. 展开更多
关键词 southwest vortex similar circulation background diabatic heating kinetic energy spatial non-uniform heating effect
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Optimal Insurance with Background Risk under the Ambiguity and Belief Heterogeneity Structure
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作者 Xiaohan Wang 《Journal of Applied Mathematics and Physics》 2024年第6期2160-2171,共12页
In this paper, we discuss the optimal insurance in the presence of background risk while the insured is ambiguity averse and there exists belief heterogeneity between the insured and the insurer. We give the optimal i... In this paper, we discuss the optimal insurance in the presence of background risk while the insured is ambiguity averse and there exists belief heterogeneity between the insured and the insurer. We give the optimal insurance contract when maxing the insured’s expected utility of his/her remaining wealth under the smooth ambiguity model and the heterogeneous belief form satisfying the MHR condition. We calculate the insurance premium by using generalized Wang’s premium and also introduce a series of stochastic orders proposed by [1] to describe the relationships among the insurable risk, background risk and ambiguity parameter. We obtain the deductible insurance is the optimal insurance while they meet specific dependence structures. 展开更多
关键词 Optimal Insurance Monotone Hazard Ratio Order Smooth Ambiguity Model background Risk Belief Heterogeneity Structure
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Ratio of Gravitational Force to Electric Force from Empirical Equations in Terms of the Cosmic Microwave Background Temperature
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 2024年第5期674-689,共16页
Previously, we presented several empirical equations using the cosmic microwave background (CMB) temperature. Next, we propose an empirical equation for the fine-structure constant. Considering the compatibility among... Previously, we presented several empirical equations using the cosmic microwave background (CMB) temperature. Next, we propose an empirical equation for the fine-structure constant. Considering the compatibility among these empirical equations, the CMB temperature (T<sub>c</sub>) and gravitational constant (G) were calculated to be 2.726312 K and 6.673778 × 10<sup>−11</sup> m<sup>3</sup>∙kg<sup>−1</sup>∙s<sup>−2</sup>, respectively. Every equation could be explained in terms of the Compton length of an electron (λ<sub>e</sub>), the Compton length of a proton (λ<sub>p</sub>) and a. Furthermore, every equation could also be explained in terms of Avogadro’s number and the number of electrons in 1 C. However, the ratio of the gravitational force to the electric force cannot be uniquely determined when the unit of the Planck constant (Js) is changed. In this study, we showed that every equation can be described in terms of Planck constant. From the assumption of minimum mass, the ratio of gravitational force to electric force could be elucidated. 展开更多
关键词 Ratio of Gravitational Force to Electric Force Minimum Mass Temperature of the Cosmic Microwave background
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Algorithms for Empirical Equations in Terms of the Cosmic Microwave Background Temperature
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 2024年第10期1567-1585,共19页
Previously, we presented several empirical equations using the cosmic microwave background (CMB) temperature. Next, we propose an empirical equation for the fine-structure constant. Considering the compatibility among... Previously, we presented several empirical equations using the cosmic microwave background (CMB) temperature. Next, we propose an empirical equation for the fine-structure constant. Considering the compatibility among these empirical equations, the CMB temperature (Tc) and gravitational constant (G) were calculated to be 2.726312 K and 6.673778 × 10−11 m3∙kg−1∙s−2, respectively. Every equation can be explained numerically in terms of the Compton length of an electron (λe), the Compton length of a proton (λp) and α. Furthermore, every equation can also be explained in terms of the Avogadro number and the number of electrons at 1 C. We show that every equation can be described in terms of the Planck constant. Then, the ratio of the gravitational force to the electric force can be uniquely determined with the assumption of minimum mass. In this report, we describe the algorithms used to explain these equations in detail. Thus, there are no dimension mismatch problems. 展开更多
关键词 Temperature of the Cosmic Microwave background Minimum Mass The Ratio of Gravitational Force to Electric Force Dimension Analysis Redefinition Method Fine Structure Constant
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基于BG-Net手写数学公式计算系统的实现
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作者 李大舟 张小明 +2 位作者 高巍 沈雪雁 孟智慧 《沈阳化工大学学报》 CAS 2024年第3期278-288,共11页
针对手写数学公式识别难度大及计算量高的问题,提出一种基于BG-Net神经网络识别手写数学公式并自动计算的新方法.通过改进的最小外边框与投影法结合算法对数学公式进行分割,解决了数学公式切分不彻底的问题.在传统的VGGNet网络的基础上... 针对手写数学公式识别难度大及计算量高的问题,提出一种基于BG-Net神经网络识别手写数学公式并自动计算的新方法.通过改进的最小外边框与投影法结合算法对数学公式进行分割,解决了数学公式切分不彻底的问题.在传统的VGGNet网络的基础上,引入零填充层控制特征图的大小,有效解决了模型无法获取边缘关键信息的问题.使用全局池化层替代全连接层,减少了网络参数.为了提高网络的训练速度,在卷积操作后添加批量标准化处理.采用较小的卷积核进行特征提取,根据各类型数学公式的二维空间特征和语法逻辑实现公式映射,利用“分组树”的思想实现系统在四则运算、定积分、方程、矩阵、微分及混合运算之间的计算.研究结果表明:BG-Net模型在CROHME 2016数据集上对公式整体识别率达到94.68%,数学公式各模块计算准确率均为95%以上,混合运算准确率为94.7%,验证了该方法的有效性. 展开更多
关键词 词手写公式识别 bg-Net模型 空间解析 数学公式映射 模块计算
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Correspondence Principle for Empirical Equations in Terms of the Cosmic Microwave Background Temperature with Solid-State Ionics
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 2024年第1期51-63,共13页
Previously, we presented several empirical equations using the cosmic microwave background (CMB) temperature that were mathematically connected. Next, we proposed an empirical equation for the fine-structure constant.... Previously, we presented several empirical equations using the cosmic microwave background (CMB) temperature that were mathematically connected. Next, we proposed an empirical equation for the fine-structure constant. Considering the compatibility among these empirical equations, the CMB temperature (T<sub>c</sub>) and gravitational constant (G) were calculated to be 2.726312 K and 6.673778 × 10<sup>-11</sup> m<sup>3</sup>·kg<sup>-1</sup>·s<sup>-2</sup>, respectively. Every equation can be explained in terms of the Compton length of an electron (λ<sub>e</sub>), the Compton length of a proton (λ<sub>p</sub>) and α. However, these equations are difficult to follow. Using the correspondence principle with the thermodynamic principles in solid-state ionics, we propose a canonical ensemble to explain these equations in this report. For this purpose, we show that every equation can be explained in terms of Avogadro’s number and the number of electrons in 1 C. 展开更多
关键词 Temperature of the Cosmic Microwave background
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Innovative Research on Enterprise Marketing Strategies under the Background of New Media
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作者 Haigang Wen 《Proceedings of Business and Economic Studies》 2024年第4期300-304,共5页
Marketing is one of the comprehensive development strategies for production-oriented and service-oriented enterprises, and it is also an effective path to increase income and revenue for enterprises. By operating and ... Marketing is one of the comprehensive development strategies for production-oriented and service-oriented enterprises, and it is also an effective path to increase income and revenue for enterprises. By operating and selling the main products, services, cultural concepts, and many more of the enterprise in a market-oriented manner. We aim to deepen the impression of the enterprise among consumers, enhance its market influence, and seek more opportunities for cooperation and development for the enterprise. However, with increasingly fierce market competition, traditional marketing models are no longer able to maximize their effectiveness. This article firstly analyzes the positive impact of new media background on enterprise marketing in expanding the scope of information release, improving marketing targeting, and creating new marketing platforms. Secondly, it explores the problems faced by enterprises in the current marketing process, such as outdated ideological concepts, insufficient team building, and rigid marketing content. Finally, strategies such as updating marketing concepts, strengthening team building, and innovating marketing content were proposed to provide some reference and inspiration for enterprises to smoothly promote marketing work under the background of new media. 展开更多
关键词 New media background ENTERPRISE Marketing strategy
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Research on the Communication and Development of Heilongjiang Cultural and Creative Industry under the Background of“Belt and Road”
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作者 Yingnan Guan Dongyang Zhang 《Journal of Contemporary Educational Research》 2024年第11期69-75,共7页
This paper focuses on the research on the dissemination and development of cultural and creative industries in Heilongjiang Province under the background of“Belt and Road.”Firstly,the paper analyzes the main charact... This paper focuses on the research on the dissemination and development of cultural and creative industries in Heilongjiang Province under the background of“Belt and Road.”Firstly,the paper analyzes the main characteristics of cultural and creative industries in Heilongjiang Province and then puts forward the leading advantages of the government to promote the development of cultural and creative industries.The government gives full play to its regional advantages and creates Longjiang cultural products,while also accelerating regional industrial cooperation and innovative cultural communication forms.In-depth discussion is made on integrating scientific and technological means of the times and strengthening the cultivation of innovative talents.The government optimizes the communication and development path of the Heilongjiang cultural entrepreneurship industry and brings positive influence to the stable development of the Heilongjiang region in the future. 展开更多
关键词 Belt and Road background Heilongjiang Cultural and creative industries Communication and development
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一种前后台结合的Pipelined ADC校准技术
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作者 薛颜 徐文荣 +2 位作者 于宗光 李琨 李加燊 《半导体技术》 CAS 北大核心 2025年第1期46-54,共9页
针对Pipelined模数转换器(ADC)中采样电容失配和运放增益误差带来的非线性问题,提出了一种前后台结合的Pipelined ADC校准技术。前台校准技术通过对ADC量化结果的余量分析,补偿相应流水级的量化结果,后台校准技术基于伪随机(PN)注入的方... 针对Pipelined模数转换器(ADC)中采样电容失配和运放增益误差带来的非线性问题,提出了一种前后台结合的Pipelined ADC校准技术。前台校准技术通过对ADC量化结果的余量分析,补偿相应流水级的量化结果,后台校准技术基于伪随机(PN)注入的方式,利用PN的统计特性校准增益误差。本校准技术在系统级建模和RTL级电路设计的基础上,实现了现场可编程门阵列(FPGA)验证并成功流片。测试结果显示,在1 GS/s采样速率下,校准精度为14 bit的Pipelined ADC的有效位数从9.30 bit提高到9.99 bit,信噪比提高约4 dB,无杂散动态范围提高9.5 dB,积分非线性(INL)降低约10 LSB。 展开更多
关键词 Pipelined模数转换器(ADC) 电容失配 增益误差 前台校准 后台校准
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基于前后景分割的图像情感分析
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作者 高玮军 刘书君 孙子博 《计算机工程与应用》 北大核心 2025年第1期206-213,共8页
图像是生活中重要的信息源之一,对其所表达的内容进行细节分析,可以更充分地利用信息资源。随着信息化的快速发展,针对图像模态开展情感分析工作已成为目前研究的一大热点。图像情感分析的主要环节依次为:情感特征提取、情感空间的选择... 图像是生活中重要的信息源之一,对其所表达的内容进行细节分析,可以更充分地利用信息资源。随着信息化的快速发展,针对图像模态开展情感分析工作已成为目前研究的一大热点。图像情感分析的主要环节依次为:情感特征提取、情感空间的选择、特征融合和情感识别分类。现有的大部分图像情感分析工作以图像整体为单位进行输入,未能充分发挥图像中局部特征的情感作用。如果不能对图像的全局特征和局部特征作出区分,当图像出现清晰度不高、背景噪声较多等问题时,图像的全局特征就会变得较为敏感,特征提取和识别工作将会受到严重干扰,对情感分析的准确性产生一定影响。针对目前图像情感分析存在的不足,提出一种基于前后景分割的图像情感分析方法。该方法以YOLOv5为框架,引入ConvNeXt模块和AFF模块,分别进行特征提取和注意力融合。实验结果表明,与目前比较流行的几种图像情感分析方法相比,该方法对于包含更多情感信息和语义信息的场景更为适用,性能也有所提升。 展开更多
关键词 图像情感分析 前后景分割 特征融合 YOLOv5 局部特征 全局特征
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纯钛表面HA/BG生物复合涂层的组织结构研究 被引量:7
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作者 宁聪琴 周玉 +1 位作者 雷廷权 刘海涛 《材料科学与工艺》 EI CAS CSCD 2000年第3期30-33,共4页
通过高温熔烧法在工业纯钛TA3表面制备出不同羟基磷灰石含量的羟基磷灰石与生物玻璃的复合涂层 (简称HA/BG) .对复合涂层的微观组织结构进行了研究 .结果表明 ,所制生物玻璃在高温处理的过程中会析出六方柱状的HA晶体 ;复合涂层具有粗... 通过高温熔烧法在工业纯钛TA3表面制备出不同羟基磷灰石含量的羟基磷灰石与生物玻璃的复合涂层 (简称HA/BG) .对复合涂层的微观组织结构进行了研究 .结果表明 ,所制生物玻璃在高温处理的过程中会析出六方柱状的HA晶体 ;复合涂层具有粗糙表面 ,存在很多开放性气孔 .随着HA原始含量的增加 ,复合涂层的致密度明显降低 ,而复合涂层中HA相的衍射峰强度变化不大 . 展开更多
关键词 工业纯钛 HA/bg复合涂层 HA晶体 组织结构
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