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Resolution of Hardy’s Paradox within Spacetime Physics and the Ithaca Interpretation of Quantum Mechanics
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作者 Mohamed S. El Naschie 《World Journal of Condensed Matter Physics》 2018年第2期23-29,共7页
By religiously adhering to physics in spacetime and taking the final verdict of N.D. Mermin’s Ithaca interpretation of quantum mechanics seriously, Hardy’s paradox is completely resolved. It is then concluded that l... By religiously adhering to physics in spacetime and taking the final verdict of N.D. Mermin’s Ithaca interpretation of quantum mechanics seriously, Hardy’s paradox is completely resolved. It is then concluded that logical and mathematically consistent physical theories must be put in spacetime related formalism such as noncommutative geometry and E-infinity theory to avoid quantum paradoxes. At a minimum, we should employ the philosophy behind consistent quantum interpretation such as that of the famous Ithaca interpretation of D. Mermin. 展开更多
关键词 Hardy’s PARADOX Mermin’s Ithaca Interpretation Hardy’s Quantum ENTANGLEMENT NONCOMMUTATIVE Geometry E-INFINITY Fractal-Cantorian SPACETIME GOLDEN Mean Number System
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Properties of Flare Events on M Stars from LAMOST Spectral Survey Based on Kepler and TESS Light Curves
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作者 Gang Meng Li-Yun Zhang +7 位作者 Tianhao Su Zilu Yang Xianming LHan Prabhakar Misra Liu Long Qingfeng Pi Zhongzhong Zhu Linyan Jiang 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2023年第5期1-18,共18页
A catalog of M stars has been published from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope data release 7(LAMOST DR7).We cross-matched the LAMOST M catalog with Kepler,Kepler 2(K2)and Transiting Exopla... A catalog of M stars has been published from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope data release 7(LAMOST DR7).We cross-matched the LAMOST M catalog with Kepler,Kepler 2(K2)and Transiting Exoplanet Survey Satellite(TESS)surveys.We obtained the light curves from the Kepler and TESS surveys.We detected 20,047 flare events from 4053 M stars and calculated their durations,amplitudes,and energies.We analyzed the distribution of the flare durations and energies.The distributions of flare duration for Kepler,K2 and TESS peak are at 3–3.5 hr,4–6 hr and 1–1.5 hr,respectively.This may be the result of the different cadences for the three data sets.The highest regions of the flare energies of Kepler,K2 and TESS are 32–32.5,32–32.5 and31–31.5 erg in Log format,respectively.A linear relationship between flare duration and energy emerges from our analysis.The ratio of flare duration to total observational time is approximately 0.2%–0.3%for the Kepler,K2 and TESS surveys.The occurrence rate of a star with a flare event increases from the M0 to M4 subtypes.We also determined the spatial distribution of the flare rate of M stars in the Milky Way.It seems that the flare rate decreases as the vertical height increases.The power index of the flare energies is in the region of 1.53–2.32,which is similar to previous result for solar type star(2.0).Further,we examined the relationship between the flare amplitude and chromospheric intensity.The flare activity increases rapidly with the increase in the HαEW at the lower values(less approximately 2?)and it increases slowly at the higher values. 展开更多
关键词 STARS activity-stars flare-stars LOW-MASS
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物理学中的负质量和虚质量问题 被引量:3
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作者 倪光炯 《中国传媒大学学报(自然科学版)》 2004年第S1期1-9,共9页
由引力论中“负质量佯谬”的讨论可导致牛顿引力定律推广到有反物质和反引力的情形,使理论对m→(-m)变换具有不变性。由质量的解析延拓mo→ims看出超光速粒子的存在,进而为超光速中微子建立一个“三味振荡”的最小模型,它可能解释最近... 由引力论中“负质量佯谬”的讨论可导致牛顿引力定律推广到有反物质和反引力的情形,使理论对m→(-m)变换具有不变性。由质量的解析延拓mo→ims看出超光速粒子的存在,进而为超光速中微子建立一个“三味振荡”的最小模型,它可能解释最近发表的太阳中微子等实验结果。这两种对称性反映了物理中引入i的必要以及i与(-i)的对称性。最后对中微子在天体物理研究中的地位也作了一些猜测性的讨论。 展开更多
关键词 负质量 虚质量 反引力 超光速粒子 中微子振荡
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激波后接触面上湍流参数的实验研究
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作者 卢筱楠 J.A.Johnson 《浙江大学学报(自然科学版)》 CSCD 1991年第1期53-58,共6页
藉助现代快速A/D转换技术,采用光平均吸收法,在激波后接触面整个范围内,通过分段对脉动密度时间序列的检测,得到了在该接触面自由剪切层中不同位置的湍流自相关函数和频谱曲线,并计算了脉动时间积分比尺和频谱指数等相应的湍流结构参数... 藉助现代快速A/D转换技术,采用光平均吸收法,在激波后接触面整个范围内,通过分段对脉动密度时间序列的检测,得到了在该接触面自由剪切层中不同位置的湍流自相关函数和频谱曲线,并计算了脉动时间积分比尺和频谱指数等相应的湍流结构参数,获得了一维流场内较为详细的流动信息。 展开更多
关键词 激波 接触面 湍流 脉动密度 频谱
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多层准地转流体的对应于Arnold第二定理的非线性稳定性判据
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作者 穆穆 曾庆存 +1 位作者 T.G.Shepherd 刘永明 《自然科学进展(国家重点实验室通讯)》 1992年第6期551-554,共4页
一、模式多层准地转模式是地球流体力学中的一个重要模式.对于由该模式描述的多层准地转运动,文献得到了若干对应于Aanold第一定理的非线性稳定性判据,文献也成功地建立了对应于Arnold第二定理的非线性稳定性判据.本文利用精细的先验估... 一、模式多层准地转模式是地球流体力学中的一个重要模式.对于由该模式描述的多层准地转运动,文献得到了若干对应于Aanold第一定理的非线性稳定性判据,文献也成功地建立了对应于Arnold第二定理的非线性稳定性判据.本文利用精细的先验估计方法,建立了该类运动的一个新的对应于Arnold第二定理的非线性稳定性判据,它优于文献中的判据4.2. 将流体在垂直方向分成N层,在每一层中密度为ρ_i(常数),其密度自上而下递增:ρ_1<…<ρ_N·在每相邻两层之间的密度跃度相等的条件下(即ρ_k-ρ_(k-1)=ρ_(k-1)-ρ_(k-2),k=3,…,N),N层准地转模式为: 展开更多
关键词 多层准地转 流体 稳定性 地球
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用化学热解沉积法制备硫化镉薄膜的微结构(英文) 被引量:2
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作者 Cha DeoKjoon Kim Sunmi +2 位作者 黄宁康 刘金蓉 陈剑 《红外与毫米波学报》 SCIE EI CAS CSCD 北大核心 2004年第1期1-5,共5页
在载玻片或ITO涂覆的玻璃上采用化学热解法沉积CdS固体薄膜 ,沉积温度在 35 0~ 5 4 0℃之间 .部分制备的CdS薄膜进行 2 0 0~ 6 0 0℃的退火热处理 .由SEM ,AFM和XRD分析测量退火热处理前后的CdS薄膜的微观结构 .结果表明 ,沉积温度低... 在载玻片或ITO涂覆的玻璃上采用化学热解法沉积CdS固体薄膜 ,沉积温度在 35 0~ 5 4 0℃之间 .部分制备的CdS薄膜进行 2 0 0~ 6 0 0℃的退火热处理 .由SEM ,AFM和XRD分析测量退火热处理前后的CdS薄膜的微观结构 .结果表明 ,沉积温度低于 5 4 0℃以下制备的CdS薄膜具有类六方结构相 ,当高于 5 4 0℃沉积的CdS薄膜则显示纤锌矿相 .在 4 0 0℃化学热解沉积的CdS薄膜经高于 5 0 0℃的后热处理也可获得纤锌矿相 . 展开更多
关键词 化学热解沉积 硫化镉薄膜 微结构 沉积温度 X射线衍射分析 退火处理
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激光激发的Y_bF_3晶体的荧光光谱及高灵敏度的上转换荧光 被引量:1
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作者 张合义 何雪华 +1 位作者 赵良 William M.Yen 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 1990年第2期1-4,71,共5页
我们研究了4.2K温度下氟化镱(YbF_3)晶体的吸收光谱与荧光光谱。由吸收光谱及荧光光谱定出了YbF_3晶体中Yb^(3+)离子的斯塔克子能阶。利用红外可调谐激光器共振激发Yb^(3+)离子时观察到可见荧光。这种可见荧光是激发态的yb^(3+)离子通... 我们研究了4.2K温度下氟化镱(YbF_3)晶体的吸收光谱与荧光光谱。由吸收光谱及荧光光谱定出了YbF_3晶体中Yb^(3+)离子的斯塔克子能阶。利用红外可调谐激光器共振激发Yb^(3+)离子时观察到可见荧光。这种可见荧光是激发态的yb^(3+)离子通过能量转移过程激发的微量含量汉0.2ppm的Tm^(3+)与Er^(3+)上转换荧光。这是首次报导的灵敏度这样高的上转换荧光。经速率方程的分析与实验结果符合得较好。 展开更多
关键词 激光 YbF3 荧光 光谱 晶体
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The Role of β-effect and a Uniform Current on Tropical Cyclone Intensity 被引量:9
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作者 端义宏 伍荣生 +2 位作者 余晖 梁旭东 陈仲良 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2004年第1期75-86,共12页
A limited-area primitive equation model is used to study the role of the β-effect and a uniform current on tropical cyclone (TC) intensity. It is found that TC intensity is reduced in a non-quiescent environment comp... A limited-area primitive equation model is used to study the role of the β-effect and a uniform current on tropical cyclone (TC) intensity. It is found that TC intensity is reduced in a non-quiescent environment compared with the case of no uniform current. On an f-plane, the rate of intensification of a tropical cyclone is larger than that of the uniform flow. A TC on a β-plane intensifies slower than one on an f-plane. The main physical characteristic that distinguishes the experiments is the asymmetric thermodynamic (including convective) and dynamic structures present when either a uniform flow or β-effect is introduced. But a fairly symmetric TC structure is simulated on an f-plane. The magnitude of the warm core and the associated subsidence are found to be responsible for such simulated intensity changes. On an f-plane, the convection tends to be symmetric, which results in strong upper-level convergence near the center and hence strong forced subsidence and a very warm core. On the other hand, horizontal advection of temperature cancels part of the adiabatic heating and results in less warming of the core, and hence the TC is not as intense. This advective process is due to the tilt of the vortex as a result of the β-effect. A similar situation occurs in the presence of a uniform flow. Thus, the asymmetric horizontal advection of temperature plays an important role in the temperature distribution. Dynamically, the asymmetric angular momentum (AM) flux is very small on an f-plane throughout the troposphere. However, the total AM exports at the upper levels for a TC either on a β-plane or with a uniform flow environment are larger because of an increase of the asymmetric as well as symmetric AM export on the plane at radii >450 km, and hence there is a lesser intensification. 展开更多
关键词 β-effect uniform current asymmetric structure tropical cyclone intensity change
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ENERGY LEVELS OF STRONG COUPLING MAGNETOPOLARON IN QUANTUM WIRE 被引量:7
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作者 ZHOU Hai-yang(周海阳) +1 位作者 GU Shi-wei(顾世洧) 《Journal of Shanghai Jiaotong university(Science)》 EI 2002年第1期100-104,共5页
With the use of variational method of Pekar type, this paper studied the energy levels of magnetopolaron in quantum wire with strong electron phonon interaction. The magnetopolaron binding energy in the ground state a... With the use of variational method of Pekar type, this paper studied the energy levels of magnetopolaron in quantum wire with strong electron phonon interaction. The magnetopolaron binding energy in the ground state and in the excited state, as well as the resonance frequency of magnetopolaron were calculated. Their dependence on the cyclotron frequency and the confinement strength of quantum wire was depicted. The limiting case of bulk type and strict two dimensional type was discussed. 展开更多
关键词 STRONG COUPLING MAGNETOPOLARON QUANTUM WIRE
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Theoretical analysis of polarization recognition between chaff cloud and ship 被引量:2
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作者 邵仙鹤 李爱芝 乔晓林 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第4期457-459,共3页
Aimed at the difficulty in finding an efficient method to depress and recognize chaff in both time and frequency domain,this paper tries to recognize chaff and target such as warship in polarization domain under the t... Aimed at the difficulty in finding an efficient method to depress and recognize chaff in both time and frequency domain,this paper tries to recognize chaff and target such as warship in polarization domain under the theoretical analysis of the polarization scattering cross section of chaff.In order to find target more exactly,non-linear polarization transformation and polarization smoothness are applied to process the polarization information of chaff and ship target.The resulting recognition is proved to be effective by simulation. 展开更多
关键词 箔条云 识别 船舶 分化 极化变换 散射截面 极化信息 非线性
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Physical and geometrical parameters of VCBS XIII: HIP 105947 被引量:2
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作者 Suhail Gumaan Masda Mashhoor Ahmed Al-Wardat Jiyaulla Khan Moula Khan Pathan 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2018年第6期109-120,共12页
The best physical and geometrical parameters of the main sequence close visual binary system(CVBS), HIP 105947, are presented. These parameters have been constructed conclusively using Al-Wardat’s complex method for ... The best physical and geometrical parameters of the main sequence close visual binary system(CVBS), HIP 105947, are presented. These parameters have been constructed conclusively using Al-Wardat’s complex method for analyzing CVBSs, which is a method for constructing a synthetic spectral energy distribution(SED) for the entire binary system using individual SEDs for each component star. The model atmospheres are in its turn built using the Kurucz(ATLAS9) line-blanketed plane-parallel models. At the same time, the orbital parameters for the system are calculated using Tokovinin’s dynamical method for constructing the best orbits of an interferometric binary system. Moreover, the mass-sum of the components, as well as the ?θ and ?ρ residuals for the system, is introduced. The combination of Al-Wardat’s and Tokovinin’s methods yields the best estimations of the physical and geometrical parameters. The positions of the components in the system on the evolutionary tracks and isochrones are plotted and the formation and evolution of the system are discussed. 展开更多
关键词 binaries: close binaries: visual stars: fundamental parameters stars: individual(HIP 105947)
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Feature Abstracting and Identification of Acoustic Target in the Battle Field Based on EMD 被引量:1
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作者 蔡少川 张国伟 《Journal of Shanghai Jiaotong university(Science)》 EI 2007年第4期525-529,共5页
The method of empirical mode decomposition(EMD) was used for the signal processing and featureing of acoustic target of battle field. According to the signal's characteristics of different targets, some feature ve... The method of empirical mode decomposition(EMD) was used for the signal processing and featureing of acoustic target of battle field. According to the signal's characteristics of different targets, some feature vectors in token of the target properties were constructed and abstracted. In the basis of feature abstracting and statistic analysis for large amount of sample signal of the targets, using the maximum subjection classification method based on the fuzzy synthesis judgment, the three typical acoustic target helicopter, tank and traffic vehicle were recognized. 展开更多
关键词 empirical mode DECOMPOSITION (EMD) acoustic TARGET fuzzy synthesis JUDGMENT
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热退火对分子束外延生长的高纯GaAs薄膜中深能级的影响
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作者 徐鸿达 T.G.Andersson 《Journal of Semiconductors》 EI CAS CSCD 北大核心 1989年第12期912-916,共5页
用深能级瞬态谱(DLTS)研究了分子束外延生长的高纯GaAs薄膜中的深能级.带金电极的高纯GaAs薄膜经不同温度的热退火,其DLTS峰谱的位置和幅度均发生变化.这是由于在热退火中金电极与GaAs反应,从而出现各种各样的DLTS峰谱.来用器件制造的... 用深能级瞬态谱(DLTS)研究了分子束外延生长的高纯GaAs薄膜中的深能级.带金电极的高纯GaAs薄膜经不同温度的热退火,其DLTS峰谱的位置和幅度均发生变化.这是由于在热退火中金电极与GaAs反应,从而出现各种各样的DLTS峰谱.来用器件制造的台面腐蚀工艺去除反应物后的DLTS峰谱退化为一个单峰谱.本文结合伏安特性的测量结果对DLTS峰谱的变化进行了分析和讨论. 展开更多
关键词 分子束外延 GAAS 薄膜 深能级 热退火
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中性化离子束在横向磁场中的传输
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作者 李仁骏 A.Fisher +3 位作者 范茹玉 A.Ron N.Rostoker F.J.Wessel 《强激光与粒子束》 EI CAS CSCD 1989年第2期118-128,共11页
在真空介质中,由两种磁绝缘离子二极管产生的中性化离子束在横向磁场中B(?)400Gs传输了2m以上的距离 反磁信号以及极化电场测量证实:不论在低β0.01<β<1或在高β情况(1<β<300)下。束传输的机制都是由于的漂移结果。其中... 在真空介质中,由两种磁绝缘离子二极管产生的中性化离子束在横向磁场中B(?)400Gs传输了2m以上的距离 反磁信号以及极化电场测量证实:不论在低β0.01<β<1或在高β情况(1<β<300)下。束传输的机制都是由于的漂移结果。其中β=4πnm_1r_n^2·B^2。是束能量密度与横向磁场能量密度之比。在高β下,我们观察到磁场B向束中的快速扩散。 展开更多
关键词 中性化 离子束 磁场 传输 二极管
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Relationship between magnetic Barkhausen noise and the stresses, the hardness and the phase content of ferromagnetic materials 被引量:1
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作者 祁欣 侯志灵 田建龙 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第1期67-70,共4页
Magnetic Barkhausen Noise (MBN) is a phenomenon of electromagnetic energy emission due to the movement of magnetic domain walls inside ferromagnetic materials when they are locally magnetized by an alternating magneti... Magnetic Barkhausen Noise (MBN) is a phenomenon of electromagnetic energy emission due to the movement of magnetic domain walls inside ferromagnetic materials when they are locally magnetized by an alternating magnetic field. According to Faraday’s law of electromagnetic induction, the noise can be received by the coil attached to the surface of the material being magnetized and the noise carries the message of the characteristics of the material such as stresses, hardness, phase content, etc. Based on the characteristic of the noise, research about the relationship between the welding stresses in the welding assembly and the noise, the fatigue damage of the plate structure and the noise, and the influence of heat treatment and the variation of phase content to the noise are carried out in this paper. 展开更多
关键词 磁性材料 铁磁体 巴克豪森效应 噪音 磁畴 A/D转换
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不变的赋值函数与Cauchy投影公式(英文)
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作者 陈方维 杨丛丽 《数学杂志》 CSCD 北大核心 2012年第2期217-223,共7页
本文研究了Rn中凸集上不变的赋值函数与凸体的投影问题.利用赋值函数的方法,我们获得了凸体在任意维平面上投影的Cauchy公式和Kubota公式,这些结果推广了经典的Cauchy公式和Kubota公式.
关键词 赋值函数 内蕴体积 均值积分 Cauchy公式 Kubota公式
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Preparation, Characterization and Thermal Expansion of Pr Co-Dopant in Samarium Doped Ceria 被引量:1
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作者 V. Venkatesh V. Prashanth Kumar +1 位作者 R. Sayanna C. Vishnuvardhan Reddy 《Advances in Materials Physics and Chemistry》 2012年第4期5-8,共4页
The compositions Ce0.8-xSm0.2O2-δ(X=0, 0.02, 0.04, 0.06) were prepared through the sol–gel route. The effect of Pr addition on the crystal structure, densification and thermal expansion of Ce0.8Sm0.2O2-δ was studie... The compositions Ce0.8-xSm0.2O2-δ(X=0, 0.02, 0.04, 0.06) were prepared through the sol–gel route. The effect of Pr addition on the crystal structure, densification and thermal expansion of Ce0.8Sm0.2O2-δ was studied. The phase identification and morphology was studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM). X-ray diffraction analysis showed that all the samples exhibit a fluorite structure. The lattice parameters? were determined by X-ray powder diffraction. Lattice parameters and volume of the unit cell increases with Pr doping. Density of the all samples is more than 90% of theoretical density. The thermal expansion was measured using dilatometric technique in the temperature range 30–1000°C. It was observed that the thermal expansion increased linearly with increasing temperature for all the samples. 展开更多
关键词 Solid OXIDE Fuel Cells SOL-GEL X-Ray DIFFRACTION Scaning Electron MICROSCOPY Thermal EXPANSION
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Negative Norms in Quantized Strings as Dark Energy Density of the Cosmos 被引量:1
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作者 Mohamed S. El Naschie 《World Journal of Condensed Matter Physics》 CAS 2016年第2期63-67,共5页
The present short paper is concerned with accurate explanation as well as quantification of the so called missing dark energy of the cosmos. It was always one of the main objectives of any successful general theory of... The present short paper is concerned with accurate explanation as well as quantification of the so called missing dark energy of the cosmos. It was always one of the main objectives of any successful general theory of high energy particle physics and quantum cosmology to keep non-physical negative norms, the so called ghosts completely out of that theory. The present work takes the completely contrary view by admitting these supposedly spurious states as part of the physical Hilbert space. It is further shown that rethinking the ghost free condition with the two critical spacetime dimensions D<sub>1</sub> = 26 and D<sub>2</sub> = 25 together with the corresponding intercept a<sub>1</sub> = 1 and a<sub>2</sub> ≤ 1 respectively and in addition imposing, as in Gross et al. heterotic superstrings, an overall 496 dimensional exceptional Lie symmetry group, then one will discover that there are two distinct types of energy. The first is positive norm ordinary energy connected to the zero set quantum particles which is very close to the measured ordinary energy density of the cosmos, namely E(O) = mc<sup>2</sup>/22. The second is negative norm (i.e. ghost) energy connected to the empty set quantum wave and is equal to the conjectured dark energy density of the cosmos E(D) = mc<sup>2</sup> (21/22) presumed to be behind the observed accelerated cosmic expansion. That way we were able to not only explain the physics of dark energy without adding any new concepts or novel additional ingredients but also we were able to compute the dark energy density accurately and in full agreement with measurements and observations. 展开更多
关键词 Negative Norms Quantum Ghosts Dark Energy Accelerated Cosmic Expansion SUPERSTRINGS Quantum Field Theory Cantorian-Fractal Spacetime Einstein Relativity Non-Fictional Spurions
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质子转移反应质谱仪的技术改进及其在新领域中的应用 被引量:1
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作者 Philipp SULZER Alfons JORDAN +3 位作者 Lukas MARK Christopher A. MAYHEW Kurt BECKER Tilmann D. MARK 《生命科学仪器》 2011年第5期23-25,共3页
质子转移反应质谱仪(PTR-MS)拥有着独特的发展历程。1995年,世界上只有两个刊物报道这个相对陌生的技术。现在PTR-MS技术已经比较成熟,本文就其最新技术发展和新领域应用进行深入地讨论。
关键词 质子转移反应 技术改进 质谱仪 应用 最新技术
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B货翡翠的漫反射红外傅里叶变换光谱法鉴别 被引量:2
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作者 P.L Quek T.L Tan 黄凤鸣 《地质科学译丛》 1997年第4期1-5,共5页
对酸处理后注蜡和注胶的翡翠(B 货),漫反射红外傅里叶交换(DRIFT)光谱法是一个有用的非破坏的识别手段。因此,DRIFT 光谱法可用来鉴别天然的未经处理的翡翠与打蜡翡翠(A 货)。DRIFT 光谱中表现出的强吸收峰可用于检测胶和蜡的存在。利用... 对酸处理后注蜡和注胶的翡翠(B 货),漫反射红外傅里叶交换(DRIFT)光谱法是一个有用的非破坏的识别手段。因此,DRIFT 光谱法可用来鉴别天然的未经处理的翡翠与打蜡翡翠(A 货)。DRIFT 光谱中表现出的强吸收峰可用于检测胶和蜡的存在。利用 DRIFT 光谱法对10个翡翠样品进行综合研究,结果表明,其中一些翡翠样品已经过了酸处理、注蜡或注胶处理。该研究结果已被基础宝石学测试和 X 射线光电子分光光度法(XPS)检测所证实,并可与类似的傅里叶变换红外(FTIR)透射光谱法研究结果进行对比。通过对比,发现 DRIFT 光谱法在检测很厚(厚度大于12 mm)的翡翠样品和较薄的、但不透过红外光的 A 货时更具优势。同时也更适用于检测罕见的全包镶的翡翠首饰。 展开更多
关键词 B货翡翠 漫反射红外 傅里叶变换 光谱法 翡翠
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