Physics Open最新文献

{"title":"Extraction of newly soliton wave structure of generalized stochastic NLSE with standard Brownian motion, quintuple power law of nonlinearity and nonlinear chromatic dispersion","authors":"Islam Samir ,&nbsp;Karim K. Ahmed ,&nbsp;Hamdy M. Ahmed ,&nbsp;Homan Emadifar ,&nbsp;Wafaa B. Rabie","doi":"10.1016/j.physo.2024.100232","DOIUrl":"10.1016/j.physo.2024.100232","url":null,"abstract":"<div><p>Stochastic optical solitons are a fascinating phenomenon in nonlinear optics where soliton-like behavior emerges in systems affected by stochastic noise. This study investigates the influence of Brownian motion on wave propagation in optical fibers. The propagation is modeled using a stochastic nonlinear Schrödinger equation incorporating quintuple power-law nonlinearity and nonlinear chromatic dispersion. To explore this, the improved modified extended tanh (IMET) scheme, leveraging the extended Riccati equation, is employed. This technique facilitates the extraction of various stochastic solutions, including bright, dark, and singular solitons. Furthermore, solutions in the shapes of exponential, singular periodic, and Weierstrass elliptic forms are investigated. The study looks at how the strength of noise impacts various solutions, and Matlab software is used to create 2D and 3D graphs that show the results. It has been noted that when noise intensity rises, signal level falls and surface flattens.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"21 ","pages":"Article 100232"},"PeriodicalIF":0.0,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000309/pdfft?md5=1acca1101224d75e7ff6bbc824135b23&pid=1-s2.0-S2666032624000309-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Compact Ion Beam System for Fusion Demonstration","authors":"Allan Xi Chen ,&nbsp;Nai-Wei Liu ,&nbsp;Alexander Gunn ,&nbsp;Zhe Su ,&nbsp;Benjamin F. Sigal ,&nbsp;Matthew Salazar ,&nbsp;Nawar Abdalla ,&nbsp;James Chen ,&nbsp;Alfred Y. Wong ,&nbsp;Qiong Wang","doi":"10.1016/j.physo.2024.100234","DOIUrl":"10.1016/j.physo.2024.100234","url":null,"abstract":"<div><p>We demonstrate a compact ion beam device capable of accelerating H⁺ and D⁺ ions up to 75 keV energy, onto a solid target, with sufficient beam current to study fusion reactions. The ion beam system uses a microwave driven plasma source to generate ions that are accelerated to high energy with a direct current (DC) acceleration structure. The plasma source is driven by pulsed microwaves from a solid-state radiofrequency (RF) amplifier, which is impedance matched to the plasma source chamber at the S-band frequency in the range of 2.4–2.5 GHz. The plasma chamber is held at high positive DC potential and is isolated from the impedance matching structure (at ground potential) by a dielectric-filled gap. To facilitate the use of high-energy-particle detectors near the target, the plasma chamber is biased to a high positive voltage, while the target remains grounded. A target loaded with deuterium is used to study D-D fusion and a B₄C or LaB₆ target is used to study p-¹¹B fusion. Detectors include solid-state charged particle detector and a scintillation fast neutron detector. The complete ion beam system can fit on a laboratory table and is a useful tool for teaching undergraduate and graduate students about the physics of fusion.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"21 ","pages":"Article 100234"},"PeriodicalIF":0.0,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000322/pdfft?md5=c7e354a190d329111ff6b331a3b4525f&pid=1-s2.0-S2666032624000322-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Embracing innovation and collaboration: A perspective on the National Conference on Radiation Physics (NCRP) 2022","authors":"","doi":"10.1016/j.physo.2024.100218","DOIUrl":"10.1016/j.physo.2024.100218","url":null,"abstract":"","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"20 ","pages":"Article 100218"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000164/pdfft?md5=9acd72cb77dea3f61cd5bf3575d1985d&pid=1-s2.0-S2666032624000164-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141034454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geometric genuine multipartite entanglement for four-qubit systems","authors":"Ansh Mishra ,&nbsp;Soumik Mahanti ,&nbsp;Abhinash Kumar Roy ,&nbsp;Prasanta K. Panigrahi","doi":"10.1016/j.physo.2024.100230","DOIUrl":"10.1016/j.physo.2024.100230","url":null,"abstract":"<div><p>Xie and Eberly introduced a genuine multipartite entanglement (GME) measure ‘concurrence fill’ (Xie and Eberly, 2021) for three-party systems. It is defined as the area of a triangle whose side lengths represent squared concurrence in each bi-partition. However, it has been recently shown that concurrence fill is not monotonic under LOCC, hence not a faithful measure of entanglement. Though it is not a faithful entanglement measure, it encapsulates an elegant geometric interpretation of bipartite squared concurrences. There have been a few attempts to generalize GME quantifier to four-party settings and beyond. However, some of them are not faithful, and others simply lack an elegant geometric interpretation. The recent proposal from Xie et al.. constructs a concurrence tetrahedron, whose volume gives the amount of GME for four-party systems; with generalization to more than four parties being the hypervolume of the simplex structure in that dimension. Here, we show by construction that to capture all aspects of multipartite entanglement, one does not need a more complex structure, and the four-party entanglement can be demonstrated using <em>2D geometry only</em>. The subadditivity together with the Araki-Lieb inequality of linear entropy is used to construct a direct extension of the geometric GME quantifier to four-party systems resulting in quadrilateral geometry. Our quantifier can be geometrically interpreted as a combination of three quadrilaterals whose sides result from the concurrence in one-to-three bi-partition, and diagonal as concurrence in two-to-two bipartition.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"20 ","pages":"Article 100230"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000280/pdfft?md5=e50dd2beea5b132b6a7895c0562463ed&pid=1-s2.0-S2666032624000280-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141951375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two types of cooperation between the photons in multiple scattering lasing and their possible application","authors":"Nicolae A. Enaki","doi":"10.1016/j.physo.2024.100231","DOIUrl":"10.1016/j.physo.2024.100231","url":null,"abstract":"<div><p>The two types of cooperative effects between the converted photons in the multiple steps of Raman lasing are proposed. The first type involves the cooperative process between the photons of one of the steps of Raman conversion. The second cooperative effect appears between the photons belonging to different steps of multiple conversions. This new type of generated coherent state is proposed by novel bimodal entangled sources, which take into consideration both the coherence and collective phenomena between the photons belonging to the system of the bimodal field obtained in multiple Raman emissions. For this, the creation and annihilation operators of the new resonator quasi-particle ware introduced taking into consideration the Hilbert space of field vectors at frequency differences, <span><math><mrow><msub><mrow><mi>ω</mi></mrow><mrow><mi>p</mi><mo>+</mo><mn>1</mn></mrow></msub><mo>−</mo><msub><mrow><mi>ω</mi></mrow><mrow><mi>p</mi></mrow></msub></mrow></math></span> between the anti-Stokes components of multiple Raman lasing. The application of higher-order multiple Roman bimodal coherent field quantum information is described in accordance with the definition of quantum amplitude and phase of such entangled states of light. The cooperative properties of the bimodal field in the multiple scattering processes of Raman lasing in the cavity/fiber and its interaction with ensemble of atoms prepared in <em>coherent state</em> are proposed. We introduced the new characteristics of bi-modes field in which the multiple Raman scattering takes into consideration the interaction with coherent excitation and non-stationary quantum fluctuations of the generation rate of the introduced quasi particles. Here, we represent the rate moments through the annihilation and generation operators of the cavity quasi-parties.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"21 ","pages":"Article 100231"},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000292/pdfft?md5=db49c49861cd9a87d00dd3f71a45d8f3&pid=1-s2.0-S2666032624000292-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pressure induced impact on mechanical, electrical, optical, and thermal properties of Li4OX2 (X = Cl, Br and I): DFT study","authors":"M.S. Ali ,&nbsp;R. Parvin ,&nbsp;M.A.H. Chowdhury ,&nbsp;M. Sabah ,&nbsp;M. Saiful Islam ,&nbsp;M. Hasan ,&nbsp;M.S. Islam ,&nbsp;A. Adhikary ,&nbsp;M.T. Ahmed ,&nbsp;M.H.S. Shanto ,&nbsp;M.N. Hossain","doi":"10.1016/j.physo.2024.100229","DOIUrl":"10.1016/j.physo.2024.100229","url":null,"abstract":"<div><p>We investigate the pressure effect on Li₄O<em>X</em>₂ (<em>X</em> = Cl, Br, and I) for the first time using DFT simulation. Li₄OCl₂ shows mechanical stability up to 8 GPa, whereas Li₄OBr₂ has stability up to 30 GPa pressure according to the Born stability criteria. In contrast, Li₄Ol₂ becomes unstable above 3.0 GPa pressure. Hence, anomalies were observed for Li₄O<em>X</em>₂ (<em>X</em> = Cl, Br, and I) solid electrolyte for elastic parameters, <em>C</em>_ij under pressure study. The elastic moduli are isotropic in the <em>xy</em> plane, conversely, along the <em>xz</em> and <em>yz</em> plane anisotropic behavior is observed. There is a band gap that exists at zero temperature and pressure. The contribution at the fermi level mainly comes from the O 2<em>p</em> states. The highest reflectivity (∼98 %) was observed for Li₄OCl₂ at ∼ 17 eV in the IR-visible-UV region showing that this material under study may be considered as a potential coating material to avoid solar heating. The smaller value of the volume thermal expansion coefficient for Li₄OCl₂ indicates stronger atomic bonding exists, which was also observed from the elastic parameter analysis.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"20 ","pages":"Article 100229"},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000279/pdfft?md5=dfd70ef656fb1a2c0062f3cf754e953d&pid=1-s2.0-S2666032624000279-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141692097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"X-ray crystallography derived diffraction properties of cuprite crystal as revealed by transmission electron microscopy","authors":"Md. Ashraful Alam ,&nbsp;Raton Kumar Bishwas ,&nbsp;Sabrina Mostofa ,&nbsp;Debasish Sarkar ,&nbsp;Shirin Akter Jahan","doi":"10.1016/j.physo.2024.100228","DOIUrl":"https://doi.org/10.1016/j.physo.2024.100228","url":null,"abstract":"<div><p>To produce high crystalline and unified cuprite nano single crystals from copper sulfate pentahydrate a unique bi-polarized methanol-water mixture reduces surface energy and enhances capping efficiency. Exhaustive significance lattice parameters, crystal volume, peak profiling, lattice constant, percent of crystallinity and crystal strain were analyzed by the whole powder pattern fitting (WFPP) Rietveld refinement method. A red shift at 636.0 nm in UV spectrophotometry is associated with a high surface plasmon effect and the zeta potential of 89.0 mV confirms the excellent stability of the cuprite crystal. Crystallographic data, d-spacing 0.25188 nm, lattice parameters a = b = c = 3.78 Å, α = β = γ = 90° of cuprite single crystal was further established by the selected area electron diffraction (SAED) in TEM. Energy dispersive spectroscopy (EDS) reveals the formation of the 100.0 % unified cuprite single crystal.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"20 ","pages":"Article 100228"},"PeriodicalIF":0.0,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000267/pdfft?md5=aa91c5ed57ed65b31cfe50d192e26326&pid=1-s2.0-S2666032624000267-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141479482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bi-planar magnetic stabilisation coils for an inertial sensor based on atom interferometry","authors":"A. Davis ,&nbsp;P.J. Hobson ,&nbsp;T.X. Smith ,&nbsp;C. Morley ,&nbsp;H.G. Sewell ,&nbsp;J. Cotter ,&nbsp;T.M. Fromhold","doi":"10.1016/j.physo.2024.100227","DOIUrl":"https://doi.org/10.1016/j.physo.2024.100227","url":null,"abstract":"<div><p>Inertial sensors that measure the acceleration of ultracold atoms promise unrivalled accuracy compared to classical equivalents. However, atomic systems are sensitive to various perturbations, including magnetic fields, which can introduce measurement inaccuracies. To address this challenge, we have designed, manufactured, and validated a magnetic field stabilisation system for a quantum sensor based on atom interferometry. We solve for the magnetic field generated by surface currents in-between a pair of bi-rectangular coils and approximate the surface current using discrete wires. The wires are wound by-hand onto machined panels which are retrofitted onto the existing mounting structure of the sensor without interfering with any experimental components. Along the central <span><math><mrow><mn>60</mn><mspace></mspace><mi>mm</mi></mrow></math></span> of the <span><math><mi>y</mi></math></span>-axis, which aligns with the trajectory of the atoms during interferometry, the coils are measured to generate an independent uniform axial magnetic field with a strength of <span><math><mrow><msub><mrow><mi>B</mi></mrow><mrow><mi>z</mi></mrow></msub><mo>=</mo><mfenced><mrow><mn>22</mn><mo>.</mo><mn>81</mn><mo>±</mo><mn>0</mn><mo>.</mo><mn>01</mn></mrow></mfenced></mrow></math></span> <span><math><mi>μ</mi></math></span>T/A [<span><math><mrow><mi>mean</mi><mo>±</mo><mn>2</mn><mi>σ</mi><mspace></mspace><mi>std. error</mi></mrow></math></span>] and an independent linear axial field gradient of strength <span><math><mrow><mi>d</mi><msub><mrow><mi>B</mi></mrow><mrow><mi>z</mi></mrow></msub><mo>/</mo><mi>d</mi><mi>y</mi><mo>=</mo><mfenced><mrow><mn>10</mn><mo>.</mo><mn>6</mn><mo>±</mo><mn>0</mn><mo>.</mo><mn>1</mn></mrow></mfenced></mrow></math></span> <span><math><mi>μ</mi></math></span>T/Am. The uniform <span><math><msub><mrow><mi>B</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span> field is measured to deviate by a maximum value of 1.3% in the same region, which is a factor of three times more uniform than the previously-used on-sensor rectangular <span><math><msub><mrow><mi>B</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span> compensation set.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"20 ","pages":"Article 100227"},"PeriodicalIF":0.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000255/pdfft?md5=61c5354aa3e42b7600f92881ea484bc3&pid=1-s2.0-S2666032624000255-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141540323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, Dielectric and Magnetic studies of Mixed Ferrites of Co-Zn using combustion method","authors":"Banu S. Razikha ,&nbsp;S.S. Mahesh ,&nbsp;A. Manjunath","doi":"10.1016/j.physo.2024.100226","DOIUrl":"10.1016/j.physo.2024.100226","url":null,"abstract":"<div><p>Using auto-combustion approach, cobalt ferrite nanoparticles doped with Zn⁺² with the basic chemical composition Zn_xCo_1-xFe₂O₄ (x = 0 to 1: in steps of 0.25) were prepared. Phase confirmation of the proposed samples was confirmed through XRD studies. XRD pattern of the calcined ferrites revealed single phase spinel cubic structure. At room temperature, using HIOKI LCR meter (Model no: 3520-50) the dielectric measurements in the frequency range 10² Hz–10⁶ Hz were performed. Dielectric constant (ε′) and dielectric loss tangent (tan δ) of synthesized nano-materials were investigated as a function of frequency and Zn⁺² concentration at ambient temperature and all the samples exhibited dielectric dispersion. Magnetic measurements for Zn_xCo_1-xFe₂O₄ nano-ferrites were carried out at room temperature using a vibrating sample magnetometer (VSM), and all the samples of the system CoZnFe₂O₄ exhibited ferromagnetic behavior.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"20 ","pages":"Article 100226"},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000243/pdfft?md5=1cd96e2ebd3e89512726eb77ece8bfa6&pid=1-s2.0-S2666032624000243-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141399996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dielectric, ferroelectric, and energy storage efficiency of (Ba0.85Ca0.15)Zr0.1Ti0.9O3/BaTiO3 and Ba0.7Ca0.3TiO3/BaZr0.2Ti0.8O3 bilayer ceramic","authors":"Panupong Jaiban ,&nbsp;Nuttapon Pisitpipathsin ,&nbsp;Anucha Watcharapasorn","doi":"10.1016/j.physo.2024.100225","DOIUrl":"10.1016/j.physo.2024.100225","url":null,"abstract":"<div><p>The Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃/BaTiO₃ and Ba_0.7Ca_0.3TiO₃/BaZr_0.2Ti_0.8O₃ bilayer ceramics are fabricated via a solid-state sintering method. The phase, microstructure, and chemical composition of the bilayer ceramics are compared with pure ceramics, i.e., BaTiO₃ (BT), Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ (BCZT), Ba_0.7Ca_0.3TiO₃ (BCT), and BaZr_0.2Ti_0.8O₃ (BZT). The crystal structure of both bilayer ceramics did not differ from that of each pure ceramic. The bilayer structure has a good interface bonding between each layer. The bilayer ceramics have two-phase transition temperatures, which come from BCZT and BT for the BCZT/BT system and BCT and BZT for the BCT/BZT system. Compared with pure ceramic, the interface causes a decrease in <em>ε</em>_m of the bilayer ceramics. The difference between the maximum polarization and remanent polarization (Δ<em>P</em>) has an essential role in improving the energy storage efficiency of these ceramics. The results suggest modification in the ceramic's dielectric and energy storage efficiency by bilayer structure.</p></div>","PeriodicalId":36067,"journal":{"name":"Physics Open","volume":"20 ","pages":"Article 100225"},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666032624000231/pdfft?md5=bab1599dd41eccde887e784dde24f55d&pid=1-s2.0-S2666032624000231-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141141918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}