Results in Physics最新文献_第4页

A comprehensive study of physical properties of TMP2 (TM = Fe, Ru, Os): As semiconductors for optoelectronic and thermoelectronic applications

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-17 DOI: 10.1016/j.rinp.2025.108211

A. Almeshal , M. Musa Saad H.-E. , B.O. Alsobhi

{"title":"A comprehensive study of physical properties of TMP2 (TM = Fe, Ru, Os): As semiconductors for optoelectronic and thermoelectronic applications","authors":"A. Almeshal , M. Musa Saad H.-E. , B.O. Alsobhi","doi":"10.1016/j.rinp.2025.108211","DOIUrl":"10.1016/j.rinp.2025.108211","url":null,"abstract":"<div><div>Herein, we have performed a comprehensive study on the electronic, structural, optical, and thermoelectric characteristics of TMP<sub>2</sub> (TM = Fe, Ru, Os). The optimized parameters reveal that TMP<sub>2</sub> crystallize in an orthorhombic (Pnnm; #58). Both DOSs and BSs within PBE, mBJ and SOC depict that TMP<sub>2</sub> possess semiconductor nature with a narrow bandgap (<span><math><msub><mi>E</mi><mi>g</mi></msub></math></span> = 0.414, 0.553 and 0.775 eV), respectively. The calculated DOS confirm that the Fe-3d, Ru-4d, and Os-5d orbitals have the dominant contribution at the top of valence bands. In addition, TMP<sub>2</sub> show unique optical characteristics such as strong absorption, high conductivity, and fit refractivity in the visible region. Finally, the thermoelectric characteristics, Seebeck power, figure of merit, power factor, electrical and thermal conductivities, and heat capacity are described at different <span><math><mi>T</mi></math></span>. Notably, the obtained characteristics and (<span><math><mrow><mi>ZT</mi></mrow></math></span> = 1.0; 60–300 K) highlight the huge potential of semiconductors TMP<sub>2</sub> and their perfect suitability for various optoelectronic and thermoelectronic applications.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"72 ","pages":"Article 108211"},"PeriodicalIF":4.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-level DLD microfluidic chip for plasma separation: A novel approach using Cu-ACE

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-15 DOI: 10.1016/j.rinp.2025.108209

Milad Darboui , Meysam Fatehi , Reza Zareifar , Hamid Reza Taheri Tolgari , Hadi Esmaeili Khoshmardan

{"title":"Multi-level DLD microfluidic chip for plasma separation: A novel approach using Cu-ACE","authors":"Milad Darboui , Meysam Fatehi , Reza Zareifar , Hamid Reza Taheri Tolgari , Hadi Esmaeili Khoshmardan","doi":"10.1016/j.rinp.2025.108209","DOIUrl":"10.1016/j.rinp.2025.108209","url":null,"abstract":"<div><div>This paper presents the design and fabrication of an innovative microfluidic chip inspired by the intricate mechanism of fish gills. The main objective of this study is to develop an efficient microfluidic chip for the selective separation of blood plasma. To this end, numerical simulations in COMSOL Multiphysics software have been employed to optimize geometric and operational parameters, thereby achieving optimal separation efficiency. The fabrication of this chip employed the copper-assisted chemical etching (Cu-ACE) technique, resulting in the formation of a well-ordered array of crescent-shaped micro holes on a silicon wafer. The micro holes were molded using polydimethylsiloxane (PDMS), resulting in the production of PDMS pillars in a deterministic lateral displacement (DLD) structure. These filters were integrated into a copper reservoir with a depth of 10 μm, then strong bond between the PDMS structure and copper substrate was established using a new self-assembled silane layer. To assess the surface morphology and quality of the fabricated structures, field emission scanning electron microscopy (FE-SEM) and optical microscopy (OM) were utilized to observe the separation of the cells from the plasma. A hemocytometer was provided to determine the purity percentage for validation and assessment of the results. The results indicated that the adhesion between PDMS and copper is acceptable. Additionally, the crescent-shaped pillars have an efficient effect on the separation, achieving a plasma purity of 98 % from experimental test.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"71 ","pages":"Article 108209"},"PeriodicalIF":4.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Learning-based super-resolution for remote sensing images via adaptive reconstruction regularization

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-15 DOI: 10.1016/j.rinp.2025.108206

Ruolin Ruan , Fanghua Liu , Hao Ni

{"title":"Learning-based super-resolution for remote sensing images via adaptive reconstruction regularization","authors":"Ruolin Ruan , Fanghua Liu , Hao Ni","doi":"10.1016/j.rinp.2025.108206","DOIUrl":"10.1016/j.rinp.2025.108206","url":null,"abstract":"<div><div>Dictionary learning has made a great breakthrough in single image super-resolution (SR) for remote sensing images. Most of these learning-based methods adopt the empirical training regularized parameter and reconstruction regularized parameter for all input images. This ignores the feature differences among the input low-resolution (LR) images and finally limits the SR performance. To address this problem, we propose an adaptive reconstruction regularization (ARR) algorithm. The reconstruction regularized parameter is adaptively solved by the U-curve algorithm corresponding to each LR remote sensing image, leading to the optimal reconstruction sparse coefficients. To enhance the edges and corners, the high-frequency patches are separately reconstructed after feature extraction. The final SR image is obtained by the superposition of the high-frequency part and the Bicubic up-scaling part. According to the experimental results, our proposed ARR can obtain sharper edges and crispier textures in the recovered SR images than several state-of-the-art methods, demonstrating superior SR performances.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"71 ","pages":"Article 108206"},"PeriodicalIF":4.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and characterization of Zn doped CoFe2O4 magnetic nanoparticles and their antimicrobial and wound healing assay

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-15 DOI: 10.1016/j.rinp.2025.108210

S. Dhivya Bharathi, D. Rajan Babu

引用次数: 0

Freeform reflection imaging system design based on subaperture integrating method

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-15 DOI: 10.1016/j.rinp.2025.108207

Hao Tan , Zhuang Qian , Rundong Fan , Shili Wei , Yan Mo , Huiru Ji , Donglin Ma

{"title":"Freeform reflection imaging system design based on subaperture integrating method","authors":"Hao Tan , Zhuang Qian , Rundong Fan , Shili Wei , Yan Mo , Huiru Ji , Donglin Ma","doi":"10.1016/j.rinp.2025.108207","DOIUrl":"10.1016/j.rinp.2025.108207","url":null,"abstract":"<div><div>We introduce a novel design methodology for freeform reflective imaging systems based on the integration of multiple subapertures. Subapertures are systems with the same aperture as the designed system but only a relevant small field of view (FOV). The method is based on the premise that each subaperture can retain excellent local characteristics within its designated FOV. By assembling these subapertures, we are able to design complex optical systems that achieve high performance with a wide FOV. During the design process, the reflective surfaces of the freeform reflective imaging system are constructed by combining the sampling points of many subapertures and the corresponding normal vectors of these sampling points, to maximize the retention of local characteristics of each subaperture in the combined freeform system. This method can converge at a relatively fast rate compared with traditional design method. The designed optical systems based on the proposed method exhibit good performance and can serve as superior starting structures for further optimization. Furthermore, Practical examples presented validate the effectiveness and practical applicability of our methodology.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"71 ","pages":"Article 108207"},"PeriodicalIF":4.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elastic analysis of uniform pressurized axisymmetric cylindrical shells made of saturated porous materials

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-14 DOI: 10.1016/j.rinp.2025.108194

Hooman Esfandyari, Mohammad Zamani Nejad

引用次数: 0

Comment on the paper “Endo/exothermic chemical processes influences of tri-hybridity nanofluids flowing over wedge with convective boundary constraints and activation energy”, [Tanveer Sajid, Mohammed K. Al Mesfer, Wasim Jamshed, Mohamed R. Eid, Mohd Danish, Kashif Irshad, Rabha W. Ibrahim, Sawera Batool, Sayed M. El Din, Gilder Cieza Altamirano, Results Phys 51 (2023) 106676]

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-14 DOI: 10.1016/j.rinp.2025.108205

Asterios Pantokratoras

引用次数: 0

Nonlinear structures in collisional magnetized plasmas: Impact of regularized Kappa distributed electrons

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-14 DOI: 10.1016/j.rinp.2025.108200

M. Mehdipoor

引用次数: 0

Accurate graphene-based absorber for slight leakage detection of Radon and chloroform air-pollution

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-13 DOI: 10.1016/j.rinp.2025.108196

Bahareh Khodadadi, Pejman Rezaei, Soheil Hadipour

{"title":"Accurate graphene-based absorber for slight leakage detection of Radon and chloroform air-pollution","authors":"Bahareh Khodadadi, Pejman Rezaei, Soheil Hadipour","doi":"10.1016/j.rinp.2025.108196","DOIUrl":"10.1016/j.rinp.2025.108196","url":null,"abstract":"<div><div>Metamaterial absorbers, particularly those tailored for the terahertz (THz) spectrum, are increasingly capturing the attention of engineers and researchers around the globe due to their potential applications in advanced sensing and imaging technologies. This paper presents a comprehensive study of a novel tunable terahertz metamaterial perfect absorber demonstrating remarkable capabilities, making it particularly suitable for various sensing applications. One of the standout features of this design is its high sensitivity to changes in refractive indices. This characteristic is crucial for precise gas detection, which is becoming increasingly important across various fields, including environmental monitoring, industrial safety, and biomedical diagnostics. The ability to accurately identify gases can facilitate early detection of hazards and improve health outcomes. The proposed metamaterial absorber comprises three distinct layers: a gold layer, a silicon dioxide (<span><math><mrow><mi>S</mi><mi>i</mi><msub><mi>O</mi><mn>2</mn></msub></mrow></math></span>) layer, and a graphene layer. As a result, this design structure achieves a perfect absorptivity at 12.99 THz, which boasts a Q-factor of 14.94, which reflects its quality and efficiency in resonating at the desired frequency.</div><div>The advancements detailed in this paper hold notable promise for enhancing gas detection technologies, potentially paving the way for innovative solutions in both industrial applications—such as monitoring emissions and detecting leaks—and biomedical contexts. The findings presented here could lay the groundwork for future research and development.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"71 ","pages":"Article 108196"},"PeriodicalIF":4.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial ordering of spatially indirect excitons in the germanium/silicon nanosystems with germanium quantum dots

IF 4.4 2区物理与天体物理

Results in Physics Pub Date : 2025-03-12 DOI: 10.1016/j.rinp.2025.108191

Serhii I. Pokutnii

引用次数: 0