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1861
Alterations of diffusion kurtosis measures in gait-related white matter in the “ON–OFF state” of Parkinson’s disease
Published 2025-05-01“…This study aimed to explore alterations in brain microstructure in PD patients and healthy controls (HCs) and to identify the correlation of gait impairment in the ON and OFF states of patients with PD, respectively. …”
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1862
Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel
Published 2015-01-01“…In the processing maps, both power dissipation ratio and unstable region increased with increasing N concentration. In terms of microstructure evolution, N promoted dynamic recrystallization kinetic and decreased dynamic recrystallization grain size. …”
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1863
Assessment of Mechanical Properties and Damage of High Performance Concrete Subjected to Magnesium Sulfate Environment
Published 2017-01-01“…The microstructure, porosity, mass loss, dimensional variation, compressive strength, and splitting tensile strength of HPC were investigated at various erosion times up to 392 days. …”
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1864
Methodological approach to development of dosimetric models of the human skeleton for beta-emitting radionuclides
Published 2019-06-01“…This article describes the modeling methodology which takes into account the individual variability of the macro- and microstructure of bone tissue.Materials and methods: it is proposed to model bone sites with active hematopoiesis by dividing them into small segments described by simple geometric shapes. …”
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1865
Fabrication effect on SLM and cast Inconel 718 properties for energy conversion
Published 2025-09-01“…This study investigates the effect of fabrication methods on the microstructural, mechanical, and electrochemical durability of nickel alloy IN718, aiming to establish it as a cost-effective electrode material for direct seawater electrolysis using renewable energy sources. …”
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1866
Loading of a porous rock with constant micro-seismic event rate suppresses seismicity and promotes subcritical failure
Published 2025-06-01“…We develop a new model that explains this observation, based on the observed evolution of microstructural damage and the fracture mechanics of subcritical crack growth. …”
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1867
Synergistically enhanced cryogenic strength and ductility in 304L stainless steel made by directed energy deposition additive manufacturing
Published 2025-05-01“…We find that regardless of the printing strategy, DED AM 304L exhibits synergistically enhanced strength and ductility from room temperature down to cryogenic temperature (77 K); that surpasses the mechanical performance of 304L synthesized via conventional processes. We follow the evolution of statistically representative microstructure regions using electron microscopy during quasi in-situ tensile tests interrupted at different strain levels and reveal the deformation mechanisms responsible for this behavior. …”
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1868
Copulatory mechanism and genital coupling of the longhorn beetle Moechotypa diphysis (Coleoptera, Cerambycidae)
Published 2025-04-01“…Male genital structures are closely connected to female genital structures: the apical phallomere and flagellum on the male endophallus contacting the bursa copulatrix duct and the spermathecal duct of the female, and the abundant microstructures on the surface of the everted male endophallus directly anchoring the female genital tract. …”
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1869
Damage of bamboo and wooden materials based on linear elastic fracture mechanics in garden design
Published 2016-01-01“…Wooden materials and bamboo materials with clear microstructure are composite biomaterials which can be studied under multiple scales. …”
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1870
Monolithic conversion of AZ31 Mg alloy plates to struvite in saturated ammonium dihydrogen phosphate solutions
Published 2025-10-01“…Close examination of the cross section by SEM revealed formation of mainly prismatic crystals of struvite perpendicular to the rolling direction of the plates, thus intercalating and simultaneously densifying the microstructure. However such long term struvite growth could not be sustained in any of the studied multicomponent solutions of ADP, which highlights the unique pH evolution of saturated ADP solution that is suitable for continuous struvite formation. …”
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1871
Seismic Velocities of Subducted Serpentinites Through the Lizardite‐Antigorite Transition
Published 2025-07-01“…To understand the effects of the metamorphic conditions and the associated microstructural evolution on the serpentinite velocity, we collected seven natural serpentinite rocks with different metamorphic imprints in the Western Alps, from blueschists to eclogite facies conditions. …”
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1872
Constitutive Model and Hot Processing Map of Ni-Cr-Fe Heat-resistant Alloy for Advanced Ultra-Supercritical Boilers
Published 2025-08-01“…Based on the Arrhenius hyperbolic sine model, strain factor is innovatively introduced to construct an improved constitutive model suitable for heat-resistant alloys, and two indexes, correlation coefficient R and absolute error δ, are used to evaluate the accuracy of the model's prediction of rheological stress; At the same time, by constructing the hot processing map of the heat-resistant alloy and the microstructure analysis, the optimal range of hot working process parameters of the alloy is systematically evaluated and determined. …”
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1873
Effects of Incorporating Carboxymethyl Chitosan into PMMA Bone Cement Containing Methotrexate.
Published 2015-01-01“…The mechanical properties, microstructure, and MTX release of (CMCS+MTX)-PMMA cement were evaluated respectively by universal mechanical testing machine, scanning electron microscopy (SEM), and incubation in simulated body fluid with subsequent HPLC-MS. …”
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1874
Non-Destructive Testing by Magnetic Noise Method of the Quality of Heat Treatment of Steel Samples Obtained by Additive Technology
Published 2022-10-01“…Compared to the hardness measurement method, which is mainly associated with phase-structural changes, the magnetic noise method due to selectivity to other controlled parameters is additionally sensitive to cast samples (at the same time the microstructures of cast and normalized three-dimensional samples are close to each other according to X-ray data).The magnetic noise method can be used as one of the physical methods for evaluation the quality and control of the heat treatment of 3D samples at the manufacturing stage when testing their types and modes, as well as sorting samples.…”
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1875
Impact of Lubrication on Shear Deformation During Asymmetrical Rolling: A Viscoplastic Analysis of Slip System Activity Using an Affine Linearization Scheme
Published 2025-06-01“…Although it is well established that lubrication influences the microstructure and texture of deformed sheets through its effect on shear deformation, the underlying mechanisms remain insufficiently understood. …”
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1876
Brain white matter development in 8-year-old children is associated with maternal mental health during pregnancy
Published 2025-06-01“…Their children underwent a brain MRI examination at age 8 years with multi-shell diffusion imaging analyzed using diffusion tensor imaging (DTI), diffusional kurtosis imaging (DKI), and neurite orientation dispersion and density imaging (NODDI) models for a multi-aspect evaluation of microstructural development. Key diffusion metrics (FA: fractional anisotropy; MD: mean diffusivity; AD: axial diffusivity; RD: radial diffusivity; MK: mean kurtosis; AK: axial kurtosis; RK: radial kurtosis; NDI: neurite density index; ODI: orientation dispersion index; FWF: free water fraction) were extracted from the limbic system white matter structures including cingulum, fornix, and uncinate fasciculus, which are closely associated with emotional and motivational processes.ResultsHigher maternal depression symptom scores were associated with lower FA (R = –0.3126, p = 0.0305, in CGH.R; R = –0.3025, p = 0.0366, in FXC.R) and MK (R = –0.3284, p = 0.0227, in CGG.R) and higher MD (R = 0.2879, p = 0.0472, in CGH.R) and RD (R = 0.3451, p = 0.0163, in CGH.R; R = 0.3456, p = 0.0161, in FXC.R) in predominately right-hemisphere limbic tracts. …”
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1877
The Combined Effect of Nanoclay Powder and Curing Time on the Properties of Class G Cement
Published 2023-01-01“…Nanoclay cement had 76.9% lower permeability than control cement, which can be related to the capacity of the nanoclay particles to fill the microstructure dominating the base samples as curing time increased. …”
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1878
The use of dendritic fibrous nano-titanium to enhance the initial characteristics and durability of lightweight concrete
Published 2025-04-01“…The inclusion of DFNT induces a transformation in the microstructural composition of lightweight concrete, shifting it from a loose needle-like structure to a more compact and cohesive microstructure characteristic of cementitious composites. …”
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1879
Characteristics, origin and significance of chessboard subgrain boundaries in the WAIS divide ice core
Published 2025-01-01“…Observation of thin sections of the WAIS (West Antarctic Ice Sheet) Divide ice core in cross-polarized light reveals a wealth of microstructures and textural characteristics indicative of strain and recovery in an anisotropic crystalline substance undergoing high-temperature plastic deformation. …”
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1880
Elucidating the deformation behaviour of DX54 steel under a continuous strain path change
Published 2025-07-01“…This study investigates the impact of a uniaxial to biaxial continuous strain path change on the microstructure and texture evolution of DX54 steel. Cruciform samples were tested in-situ using electron backscatter diffraction in a scanning electron microscope (SEM), with additional digital image correlation experiments conducted outside the SEM to monitor strain evolution. …”
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