The electronic journal of human sexuality最新文献_第2页

Phase Diagrams, Superdomains, and Superdomain Walls in K xNa 1-xNbo 3 Epitaxial Thin Films kxna1 - xnbo3外延薄膜的相图、超畴和超畴壁

The electronic journal of human sexuality Pub Date : 2021-04-01 DOI: 10.2139/ssrn.3817078

Menghan Zhou, Bo Wang, A. Ladera, L. Bogula, Han Liu, Long-qing Chen, C. Nan

{"title":"Phase Diagrams, Superdomains, and Superdomain Walls in K xNa 1-xNbo 3 Epitaxial Thin Films","authors":"Menghan Zhou, Bo Wang, A. Ladera, L. Bogula, Han Liu, Long-qing Chen, C. Nan","doi":"10.2139/ssrn.3817078","DOIUrl":"https://doi.org/10.2139/ssrn.3817078","url":null,"abstract":"Domains and domain walls play a critical role in determining the functional properties of ferroelectric thin films for various applications. Understanding the formation and structures of the domains and domain walls is of vital importance to manipulating their configurations and exploring their dynamics. When domains assemble into hierarchical structures, the superdomains and superdomain walls emerge, which exhibits exotic morphology and may lead to distinct new behaviors. Here, taking the K0.5Na0.5NbO3 thin films as a model system, we establish the misfit strain-misfit strain phase diagram at different temperatures and study the formation condition, morphological features, and polarization configurations of two types of superdomain structures by using phase-field simulations, which compare well with prior experiments. We show how the superdomain structures can be viewed as superposition of two sets of polytwin structures along well-defined planes. Several types of superdomain walls are identified, which possess different energies and finite thickness in analogy to conventional domain walls. We also show that some superdomain walls can be anomalously wide and electrically conductive. This work can generate new interests in exploring the structures and functionalities of superdomain and superdomain walls in ferroelectric thin films, which can potentially be utilized for next-generation electronic devices.","PeriodicalId":89488,"journal":{"name":"The electronic journal of human sexuality","volume":"86 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76165921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

The Creep and Fracture Properties of Additively Manufactured Inconel 625 增材制造Inconel 625的蠕变和断裂性能

The electronic journal of human sexuality Pub Date : 2021-03-01 DOI: 10.2139/ssrn.3737313

K. Son, T. Phan, L. Levine, Kyu‐Sik Kim, Kee‐Ahn Lee, M. Ahlfors, M. E. Kassner

{"title":"The Creep and Fracture Properties of Additively Manufactured Inconel 625","authors":"K. Son, T. Phan, L. Levine, Kyu‐Sik Kim, Kee‐Ahn Lee, M. Ahlfors, M. E. Kassner","doi":"10.2139/ssrn.3737313","DOIUrl":"https://doi.org/10.2139/ssrn.3737313","url":null,"abstract":"Abstract High temperature creep tests of additively manufactured (AM) nickel-based superalloy 625 (IN625) and wrought IN625 were conducted at 650 ˚C and 800 ˚C over the stress range of 65 MPa to 658 MPa. Thermal treatments were conducted for both AM and wrought IN625 samples prior to creep testing: either solution heat-treated or hot isostatically pressed and, additionally, long-term cyclic heat-treatments (LHT) at 650 ˚C for 6 months and 1 year. AM IN625 showed equal or even higher creep strength than wrought IN625 for all heat treatments. However, AM IN625 exhibited poor ductility compared to wrought IN625 under all creep testing conditions, and the ductility decreased after the LHT. Both AM and wrought IN625 obtained some additional strength after the LHT. The amount of extra strength in the alloys was generally proportional to the matrix volume fraction of γ’’ phase (650 ˚C) and δ phase (800 ˚C). The creep analysis suggests that dislocation climb is the rate controlling mechanism for creep. Atomic probe tomography revealed that oxygen content at the grain boundaries of creep-deformed AM IN625 was too small to cause any embrittlement. Nano-secondary ion mass spectrometer analysis found strong sulfur segregation at Al2O3/matrix interfaces. Fracture is intergranular where Al2O3 (that forms as a result of oxygen absorption by the powder particles before additive manufacturing) is sometimes located. Cracking can occur from these interfaces and repeated sulfur diffusion to the crack tip was the foremost possibility to explain the poor ductility of AM IN625 within the temperature range tested.","PeriodicalId":89488,"journal":{"name":"The electronic journal of human sexuality","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80583993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

Implementation of Modified GSO Based Magic Cube Keys Generation in Cryptography 基于改进GSO的魔方密钥生成在密码学中的实现

The electronic journal of human sexuality Pub Date : 2021-02-26 DOI: 10.15587/1729-4061.2021.225508

A. N. Mazher, Jumana Waleed

{"title":"Implementation of Modified GSO Based Magic Cube Keys Generation in Cryptography","authors":"A. N. Mazher, Jumana Waleed","doi":"10.15587/1729-4061.2021.225508","DOIUrl":"https://doi.org/10.15587/1729-4061.2021.225508","url":null,"abstract":"Over the last few decades, tremendous and exponential expansion in digital contents together with their applications has emerged. The Internet represents the essential leading factor for this expansion, which provides low-cost communication tools worldwide. However, the main drawback of the Internet is related to security problems. In order to provide secure communication, enormous efforts have been spent in the cryptographic field. Recently, cryptographic algorithms have become essential for increasing information safety. However, these algorithms require random keys and can be regarded as compromised when the random keys are cracked via the attackers. Therefore, it is substantial that the generation of keys should be random and hard to crack. In this paper, this is guaranteed via one of the most efficient nature-inspired algorithms emerged by inspiring the movements of stars, galaxies, and galaxy superclusters in the cosmos that can be utilized with a mathematical model (magic cube) for generating hardly cracking random number keys. In the proposed cryptographic system, the Modified Galactic Swarm Optimization (GSO) algorithm has been utilized in which every row and column of magic cube faces are randomly rotated until reaching the optimal face, and the optimal random elements are selected as optimal key from the optimal face. The generated optimized magic cube keys are used with several versions of RC6 algorithms to encrypt various secret texts. Furthermore, these generated keys are also used for encrypting images using the logical XOR operation. The obtained results of NIST tests proved that the generated keys are random and uncorrelated. Moreover, the security of the proposed cryptographic system was proved.","PeriodicalId":89488,"journal":{"name":"The electronic journal of human sexuality","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86822766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Partial Oxidation of High Entropy Alloys. A Route Towards Nanostructured Ferromagnets? 高熵合金的部分氧化。通向纳米结构铁磁体的道路?

The electronic journal of human sexuality Pub Date : 2021-01-01 DOI: 10.2139/ssrn.3910599

J. Mayandi, M. Dias, M. Stange, A. Lind, M. Sunding, A. C. Cerdeira, M. Schrade, B. Belle, T. Finstad, L. Pereira, S. Diplas, P. Carvalho

引用次数: 0

Method Development on Automated Sample Preparation System for Cu and Assay Testing in a Product with Multiple Apis and New Strategy for Quick Development and Application 铜和多原料药产品自动制样系统的方法开发及快速开发应用新策略

The electronic journal of human sexuality Pub Date : 2021-01-01 DOI: 10.2139/ssrn.3873691

L. Liu, Ariel Mouallem, Kangping Xiao

{"title":"Method Development on Automated Sample Preparation System for Cu and Assay Testing in a Product with Multiple Apis and New Strategy for Quick Development and Application","authors":"L. Liu, Ariel Mouallem, Kangping Xiao","doi":"10.2139/ssrn.3873691","DOIUrl":"https://doi.org/10.2139/ssrn.3873691","url":null,"abstract":"Automation of analytical sample preparation and testing is always attractive due to its high efficiency and continuous operation, but it can also be very challenging due to the operational complexity and method development. Studies focused on method development in automated systems are extremely rare and little has been published on the subject. In this paper, we investigate several unique and advanced aspects of this subject. The example product is selected containing two APIs to be tested by a single method. The product strengths of the two APIs are significantly different, making development of the single method much more challenging. In addition, we apply the additional challenge of using a “green chemistry” approach, avoiding any organic solvent in the dissolving media in order to achieve an environmentally friendly solution. A thorough study on the selection and optimization of several key operational parameters are then discussed. The successful method is achieved using a new strategy called “Automated Online Standard” methodology. This novel approach is compared to the conventional procedure in several scenarios, demonstrating its high effectiveness with significantly improved recovery. The proposed approach can substantially reduce the method development time, generally considered the biggest obstacle to practical deployment of automated systems. The automated system applied in this paper is most suitable for content uniformity testing, but is also applicable for blend uniformity testing, potency assays and degradation product tests.","PeriodicalId":89488,"journal":{"name":"The electronic journal of human sexuality","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90933785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid Chaotic Method for Medical Images Ciphering 医学图像加密的混合混沌方法

The electronic journal of human sexuality Pub Date : 2020-11-30 DOI: 10.5121/ijnsa.2020.12601

Seham Ebrahim

{"title":"Hybrid Chaotic Method for Medical Images Ciphering","authors":"Seham Ebrahim","doi":"10.5121/ijnsa.2020.12601","DOIUrl":"https://doi.org/10.5121/ijnsa.2020.12601","url":null,"abstract":"Healthcare is an essential application of e-services, where for diagnostic testing, medical imaging acquiring, processing, analysis, storage, and protection are used. Image ciphering during storage and transmission over the networks used has seen implemented using many types of ciphering algorithms for security purpose. Current cyphering algorithms are classified into two types: traditional classical cryptography using standard algorithms (DES, AES, IDEA, RC5, RSA, ...) and chaos cryptography using continuous (Chau, Rossler, Lorenz, ...) or discreet (Logistics, Henon, ...) algorithms. The traditional algorithms have struggled to combat image data as compared to regular textual data. Whereas, the chaotic algorithms are more efficient for image ciphering. The Significance characteristics of chaos are its extreme sensitivity to initial conditions and algorithm parameters. In this paper, medical image security based on hybrid/mixed chaotic algorithms is proposed. The proposed method is implemented using MATLAB. Where the image of the Retina of the Eye to detect Blood Vessels is ciphered. The Pseudo-Random Numbers Generators (PRNGs) from the different chaotic algorithms are implemented, and their statistical properties are evaluated using the National Institute of Standards and Technology NIST and other statistical test-suits. Then, these algorithms are used to secure the data, where the statistical properties of the cipher-text are also tested. We propose two PRNGs to increase the complexity of the PRNGs and to allow many of the NIST statistical tests to be passed: one based on two-hybrid mixed chaotic logistic maps and one based on two-hybrid mixed chaotic Henon maps, where each chaotic algorithm runs side-by-side and starts with random initial conditions and parameters (encryption keys). The resulting hybrid PRNGs passed many of the NIST statistical test suits.","PeriodicalId":89488,"journal":{"name":"The electronic journal of human sexuality","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83670087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Observational Studies on Algorithms of Frequent Pattern Mining 频繁模式挖掘算法的观测研究

The electronic journal of human sexuality Pub Date : 2020-11-21 DOI: 10.2139/ssrn.3734733

Hritika Vaishnav, Anamika Choudhary

引用次数: 0

Performance Analysis of Associate Radix-2, Radix-4 and Radix-8 Based SDF FFT 基于关联基数2、基数4和基数8的SDF FFT性能分析

The electronic journal of human sexuality Pub Date : 2020-11-20 DOI: 10.2139/ssrn.3734058

S. Singh, Prashant Purohit

引用次数: 0

Hindi English Mixed Text on Twitter Along with Emoji Prediction 推特上的印地语英语混合文本以及表情符号预测

The electronic journal of human sexuality Pub Date : 2020-11-20 DOI: 10.2139/ssrn.3734049

Abhishek Kori, Jigyasu Dubey

引用次数: 0

Ръководство за провеждане на електронно обучение в среда Office 365 (Guide for e-learning with Office 365)

The electronic journal of human sexuality Pub Date : 2020-11-17 DOI: 10.2139/SSRN.3732306

Bojidar V. Bojinov, Kameliya Emilova Bojinova

引用次数: 0