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Combined application of neutron activation analysis using IeCF device and neural network for prediction of cement elements

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Radiation Detection Technology and Methods 2017年第2期1卷 99-105页

作者： G.H.Roshani e.eftekhari-zadeh F.Shama A.Salehizadeh Department of electrical engineering kermanshah university of technologykermanshahiran department of radiation applications shahid beheshti universitytehraniran electrical engineering department kermanshah branchislamic azad universitykermanshahiran young researchers and elite club kermanshah branchislamic azad universitykermanshahiran

Purpose Gamma spectrum of a cement sample is not straightforward to analyze as a result of peak overlapping produced by Compton effect of gamma rays radiated from activated elements in the neutron activation process and also because of the change into the neutron energy spectrum in the target sample during *** Artificial neural network(ANN)is an excellent solution for complex and nonlinear ***,the use of ANN for quantitative analysis of major cement elements including Ca,Si,Al,and Fe would be very *** inertial electrostatic confinement fusion device is a fast,monoenergetic and steady neutron *** was simulated as a high-energy neutron source for performing neutron activation *** the present study,a library of 29 members of delayed gamma-ray spectra of knowing cement samples were generated via MCNPX version *** photo-peaks related to Ca,Si,Al and Fe obtained from these spectra were used as inputs for ANN(21 of them for training and 8 for testing).Then,using MLP architecture,an ANN model has been presented to model the system to predict the percentages of the elements in *** ANN model is optimized to have only a hidden layer with five *** The comparison between modeling data and results of proposed MLP network shows that there is a good consistency between *** MAe of training set for Ca,Si and Fe outputs were 0.0351,0.0656 and 0.0660,respectively,and the MAe of testing set for mentioned outputs were 0.0997,0.3046 and 0.8699,*** Overall,it can be concluded that the defined dispensable errors show that this modeling is a good one as a prediction tool for the mentioned purpose.

关键词： IR-IeCF device Artificial neural network MCNPX Neutron activation analysis Cement

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A study on the form contemporary developments of Tabriz leather and shoe Bazaar(marketplace)from the late Qajar to current period

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Frontiers of Architectural Research 2024年第4期13卷 741-763页

作者： Rana Najjari Nabi Nahideh Rezaei Rahmat Mohammad zadeh Farzin Haghparast Department of Architectural engineering&Urban Design Shahid Rajaee Teacher Training UniversityTehranIran Faculty of Architecture and Urbanism Tabriz Islamic Art UniversityTabrizIran Department of Civil Architecture GroupUniversity of TabrizTabrizIran

Bazaars are considered essential components of a society’s economy and significant features in the urban context of cities,which have emerged based on exchanging goods and meeting people’s *** the late Qajar period,amidst the rapid changes resulting from interaction with modernization,the form of Tabriz Grand Bazaar has undergone significant *** research aims to explain the contemporary transformations of marketplace form in the leather and shoe *** objectives aim to elucidate the contemporary physical,functional,and sementic changes and propose *** research method is qualitative,with a phenomenological *** results indicate that the Bazaar has lost some physical and sementic *** providing goods,it has failed to meet the public’s demands because of eliminating production workshops by changing the productive function to service-oriented and the size and shape of *** decline of religious activities is also one reason for the diminished sementic *** functional and physical aspects,some proposed solutions include preserving the authenticity of the spaces and utilizing suitable Functions with the dominant architectural *** sementic characteristics,suggestions include enhancing the sense of identity.

关键词： Contemporary developments Form Functional_Physical_Semantic factors Marketplace Bazaar

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From entry to evasion:A Comprehensive Analysis of Host-Virus Interactions for Monkeypox

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Infectious Microbes & Diseases 2024年第2期6卷 56-64页

作者： Vahideh Hamidi Sofiani Mohammad Rezaei zadeh Rukerd Javad Charostad Mohammad Pardeshenas Reza Ghazi Nasir Arefinia Sara Shafieipour Faranak Salajegheh Mohsen Nakhaie Department of Microbiology Golestan University of Medical SciencesGorganIran Gastroenterology and Hepatology Research Center Institute of Basic and Clinical Physiology SciencesKerman University of Medical SciencesKermanIran Universal Scientific education and Research Network(USeRN) TehranIran Department of Microbiology Faculty of MedicineShahid Sadoughi University of Medical SciencesYazdIran Department of Microbiology School of MedicineKerman University of Medical SciencesKermanIran Department of Biotechnology Golestan University of Medical SciencesGorganIran Student Research Committee Jiroft University of Medical SciencesJiroftIran Physiology Research Center Institute of NeuropharmacologyKerman University of Medical SciencesKermanIran Clinical Research Development Unit School of MedicineAfzalipour HospitalKerman University of Medical SciencesKermanIran

Monkeypox(Mpox)has posed a novel challenge and emerged as a threat to global public health since the onset of its outbreak in *** is spreading throughout the world in both endemic and non-endemic countries,indicating that its behavior is *** prevalence of Mpox and the risk of a global pandemic necessitate a better understanding of Mpox virus replications and interactions with the ***,we attempted to provide a detailed comprehensive review of Mpox virus behavior at the molecular level from the entry level to the establishment of a successful infection,including attachment and entry,DNA replication,protein expression and viron assembly and *** review also describes its strategies to evade host immune responses and inhibit apoptosis,and uncovers underlying molecular mechanisms such as subverted signaling pathways and cellular factors behind host-viral interactions.

关键词： monkeypox immunity apoptosis virus-host interaction

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添加不同量促腐熟菌剂对木屑和黄浆水堆肥的影响

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甘肃农业大学学报 2024年第2期59卷 117-126页

作者：杨娜马亚兰顾欣 eftekhari Ali Reza 李思琦李雪雪宁夏大学农学院宁夏银川750021

【目的】以木屑和黄浆水为原料,探讨促腐熟菌剂不同添加量对堆肥进程的影响。【方法】采用好氧发酵罐堆肥试验,设置不加促腐熟菌剂(T_(0))、加促腐熟菌剂质量分数0.1%(T_(1))、0.3%(T_(2))、0.9%(T_(3))共4个处理,以堆肥温度、pH值、种... 详细信息

【目的】以木屑和黄浆水为原料,探讨促腐熟菌剂不同添加量对堆肥进程的影响。【方法】采用好氧发酵罐堆肥试验,设置不加促腐熟菌剂(T_(0))、加促腐熟菌剂质量分数0.1%(T_(1))、0.3%(T_(2))、0.9%(T_(3))共4个处理,以堆肥温度、pH值、种子发芽指数、养分质量分数作为评价指标。采用主成分分析,研究促腐熟菌剂添加量对物料发酵进程和腐熟度的影响,明确最佳添加量。【结果】与T_(0)比较,添加促腐熟菌剂处理提前2 d进入高温期。发酵结束后,各处理的堆肥p H值介于7.46~7.74。添加不同质量分数的促腐熟菌剂可以不同程度地降低堆肥物料的碳、氮损失。与T_(0)相比,T_(1)、T_(2)、T_(3)氮损失分别降低9.41%、14.12%和4.71%,碳损失分别降低3.06%、7.97%和5.89%,其中T_(2)的氮、碳损失最低,分别为75.26%和7.82%。添加促腐熟菌剂的堆肥腐熟度比T_(0)提高3.64%~9.09%,T_(2)最先达到腐熟。【结论】综上所述,在木屑和黄浆水堆肥中添加质量分数0.3%的促腐熟菌剂,能显著促进物料腐熟,有利于降低氮、碳损失,提高堆肥质量,为木屑和黄浆水的肥料化利用提供了依据。

关键词：木屑促腐熟菌剂黄浆水堆肥发酵

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Simplified seismic scenario analysis of existing masonry buildings accounting for local site effects

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Frontiers of Structural and Civil engineering 2024年第2期18卷 309-318页

作者： Ayşe e.ÖZSOYÖZBAY Işıl SANRI KARAPINAR Zehra N.KUTLU İsmail e.KILIÇ Department of Civil engineering Maltepe UniversityIstanbul 34857Turkey School of engineering and Construction Oryx Universal CollegeDoha 12253Qatar

This study discusses the effects of local sites and hazard amplification on the seismic vulnerability assessment of existing masonry *** this context,a rapid seismic evaluation procedure was implemented on an old masonry building stock in the historical center Galata,located inİstanbul,to determine the seismic risk priority of the built *** scenarios were generated for all soil classes,different moment magnitudes,and source-to-site distances to obtain more accurate results for the seismic vulnerability assessment of the studied building ***,damage distributions estimated under nine different scenarios with/without site effects were compared and illustrated in maps to discuss changes in vulnerability owing to amplification *** this study,by re-examining the rapid seismic evaluation procedure by including geo-hazard-based assessment,the importance of site effects on the vulnerability and risk assessment of built heritage was *** proposed framework integrating field data and local site effects is believed to advance the current applications for vulnerability assessment of masonry buildings and provide an improvement in the application of rapid seismic assessment procedures with more reliable results.

关键词： masonry buildings seismic vulnerability assessment cultural heritage local site effect

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Quantum Correlations in Ising-XYZ Diamond Chain Structure under an external Magnetic Field

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Chinese Physics Letters 2015年第10期32卷 9-13页

作者： Faizi e. eftekhari H. Department of Physics Azerbaijan Shahid Madani University

We consider an entangled Ising-XY Z diamond chain structure. Quantum correlations for this model are inves- tigated by using quantum discord and trace distance discord. Quantum correlations are obtained for different values of the anisotropy parameter, magnetic field and temperature. By comparison between quantum correlations, we show that the trace distance discord is always larger than quantum discord. Finally, some novel effects such as increasing the quantum correlations with temperature and constructive role of anisotropy parameter, which may play to the quantum correlations, are observed.

关键词： TDD Quantum Correlations in Ising-XYZ Diamond Chain Structure under an external Magnetic Field

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CLASSIFICATIONS OF DUPIN HYPeRSURFACeS IN LIe SPHeRe GeOMeTRY

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Acta Mathematica Scientia 2024年第1期44卷 1-36页

作者： Thomas e.CeCIL Department of Mathematics and Computer Science College of the Holy CrossWorcesterMA01610USA

This is a survey of local and global classification results concerning Dupin hypersurfaces in S^(n)(or R^(n))that have been obtained in the context of Lie sphere *** emphasis is on results that relate Dupin hypersurfaces to isoparametric hypersurfaces in *** with these classification results,many important concepts from Lie sphere geometry,such as curvature spheres,Lie curvatures,and Legendre lifts of submanifolds of S^(n)(or R^(n)),are described in *** paper also contains several important constructions of Dupin hypersurfaces with certain special properties.

关键词： Dupin hypersurfaces isoparametric hypersurfaces Lie sphere geometry Lie sphere transformations Lie curvatures

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Investigating the impact of the universal function of the nuclear proximity potential in heavy-ion fusion cross sections

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Communications in Theoretical Physics 2024年第5期76卷 86-93页

作者： R Gharaei e Sarvari Department of Physics Sciences FacultyHakim Sabzevari UniversityPO Box 397SabzevarIran Department of Physics Faculty of ScienceFerdowsi University of MashhadPO Box 91775-1436MashhadIran Science Faculty Department of PhysicsTarbiat Modares UniversityTehranIran

The fusion barriers and cross sections of 15 colliding systems with 320≤Z_(1)Z_(2)≤1512 are investigated in detail to understand the influence of the universal function of proximity potential formalism in the heavy-ion fusion *** realize this goal,we select three versions of the phenomenological proximity potentials,including Prox.77,Zhang 2013,and Guo 2013,to calculate the nucleus-nucleus *** experimental fusion cross sections for the selected reactions are analyzed using the standard coupled-channel calculations,including couplings to the low-lying 2^(+)and 3^(-)states in the target and *** calculated results show that the universal functions of the Guo 2013 and Prox.77 models provide the lowest and highest fusion barriers,*** addition,it is found that the height of the fusion barriers is enhanced by increasing the mass number of the projectile from light to heavy *** highest sensitivity to the mass number of the projectile belongs to the results of Prox.77.A discussion is also presented on the influence of the universal function on the radial behavior of the interaction potential in the allowed region for overlapping *** results reveal that the best fit to the experimental data of the fusion cross sections for the reactions involving light and medium nuclei is obtained using the universal function of the Zhang 2013 *** the heavier systems,the results of the Guo 2013 model at sub-barrier energies provide a good description of the available data.

关键词： fusion reactions proximity-type potentials universal function coupled-channel calculations

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Are hydrides under high-pressure-high-temperature superconductors?

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National Science Review 2024年第7期11卷 9-12页

作者： J.e.Hirsch Department of Physics University of California

Contrary to the current consensus, I argue that the existing evidence for high-temperature superconductivity in hydrides under high pressure is not compelling. I suggest that the focus of the field should urgently shift to establish unequivocally experimentally whether or not superconductivity in pressurized hydrides exists, instead of continuing to search for new materials that might show elusive signals of unproven superconductivity at ever higher temperatures. The implications of a negative finding for the theoretical understanding of superconductivity are discussed.

关键词： Hydrides

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FSCIL-eACA: Few-Shot Class-Incremental Learning Network Based on embedding Augmentation and Classifier Adaptation for Image Classification

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Chinese Journal of electronics 2024年第1期33卷 139-152页

作者： Ruru ZHANG Haihong e Meina SONG School of Computer Science Beijing University of Posts and Telecommunications education Department Information Network engineering Research Center Beijing University of Posts and Telecommunications

The ability to learn incrementally is critical to the long-term operation of AI systems. Benefiting from the power of few-shot class-incremental learning(FSCIL), deep learning models can continuously recognize new classes with only a few samples. The difficulty is that limited instances of new classes will lead to overfitting and exacerbate the catastrophic forgetting of the old classes. Most previous works alleviate the above problems by imposing strong constraints on the model structure or parameters, but ignoring embedding network transferability and classifier adaptation(CA), failing to guarantee the efficient utilization of visual features and establishing relationships between old and new classes. In this paper, we propose a simple and novel approach from two perspectives: embedding bias and classifier bias. The method learns an embedding augmented(eA) network with cross-class transfer and class-specific discriminative abilities based on self-supervised learning and modulated attention to alleviate embedding bias. Based on the adaptive incremental classifier learning scheme to realize incremental learning capability,guiding the adaptive update of prototypes and feature embeddings to alleviate classifier bias. We conduct extensive experiments on two popular natural image datasets and two medical datasets. The experiments show that our method is significantly better than the baseline and achieves state-of-the-art results.

关键词： Training Adaptation models Visualization Image recognition Prototypes Self-supervised learning Power capacitors

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