Efforts to map atomic-scale chemistry at low doses with minimal noise using electron microscopes are fundamentally limited by inelastic ***,fused multi-modal electron microscopy offers high signal-to-noise ratio(SNR)r...
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Efforts to map atomic-scale chemistry at low doses with minimal noise using electron microscopes are fundamentally limited by inelastic ***,fused multi-modal electron microscopy offers high signal-to-noise ratio(SNR)recovery of material chemistry at nano-and atomic-resolution by coupling correlated information encoded within both elastic scattering(high-angle annular dark-field(HAADF))and inelastic spectroscopic signals(electron energy loss(EELS)or energy-dispersive x-ray(EDX)).By linking these simultaneously acquired signals,or modalities,the chemical distribution within nanomaterials can be imaged at significantly lower doses with existing detector *** many cases,the dose requirements can be reduced by over one order of *** high SNR recovery of chemistry is tested against simulated and experimental atomic resolution data of heterogeneous nanomaterials.
In this work, we demonstrated upconversion imagers integrated with shortwave infrared photodetectors paired with an electron blocking layer. The use of electron blocking layer screened charge injection to prevent reco...
In this work, we demonstrated upconversion imagers integrated with shortwave infrared photodetectors paired with an electron blocking layer. The use of electron blocking layer screened charge injection to prevent recombination in photosensitive layer. The characteristics of each electron blocking layer were analyzed in aspects of noise and detectivity. For the optimized device, the parasitic luminance in the dark was efficiently suppressed, and the photon-to-photon efficiency was increased. The electron blocking layer used in this work is generally applicable for upconversion imagers using different absorption and emitting materials.
This study presents a novel CSRR-loaded stepped-CPW sensor to detect adulteration levels of glycol in medical-grade solvents. The proposed RF system comprising the stepped-CPW resonant sensor and specially designed mo...
This study presents a novel CSRR-loaded stepped-CPW sensor to detect adulteration levels of glycol in medical-grade solvents. The proposed RF system comprising the stepped-CPW resonant sensor and specially designed molded glass capillary tube as a sample holder, is well suited for detecting small levels of adulteration in bio-grade glycerol. The main advantage of the proposed sensor is its strong field confinement in the sensing region, defined in terms of the shift in the resonance frequency resulting from changes in the dielectric constant. It is demonstrated that the two-ring CSRR topology, excited by the stepped-CPW and designed on a 0.8 mm thick FR-4 substrate operating at 8 GHz, provides improved sensitivity and high Q-factor compared to its single-ring counterpart. The proposed sensor is tested to detect the adulteration level of EG in medical glycerol. Various adulteration levels of EG in glycerol can be detected using the proposed device due to a substantial shift in the resonant frequency with even a small change in the adulteration level. This study introduces a comprehensive theoretical framework, including vital factors to be considered during the design phase, and explores the usage of the proposed sensor for quality monitoring of various types of medical-grade fluids.
Utilizing biomass waste as a potential resource for cellulose production holds promise in mitigating environmental *** current study aims to utilize pineapple biowaste extract in producing bacterial cellulose acetate-...
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Utilizing biomass waste as a potential resource for cellulose production holds promise in mitigating environmental *** current study aims to utilize pineapple biowaste extract in producing bacterial cellulose acetate-based membranes with magnetic nanoparticles(Fe_(3)O_(4)nanoparticles)through the fermentation and esterification process and explore its *** bacterial cellulose fibrillation used a high-pressure homogenization procedure,and membranes were developed incorporating 0.25,0.50,0.75,and 1.0 wt.%of Fe3O4 nanoparticles as magnetic nanoparticle for *** membrane characteristics were measured in terms of Scanning Electron Microscope,X-ray diffraction,Fourier Transform Infrared,Vibrating Sample Magnetometer,antibacterial activity,bacterial adhesion and dye adsorption *** results indicated that the surface morphology of membrane changes where the bacterial cellulose acetate surface looks *** crystallinity index of membrane increased from 54.34%to 68.33%,and the functional groups analysis revealed that multiple peak shifts indicated alterations in membrane functional ***,adding Fe_(3)O_(4)-NPs into membrane exhibits paramagnetic behavior,increases tensile strength to 73%,enhances activity against *** and ***,and is successful in removing bacteria from wastewater of the river to 67.4%and increases adsorption for anionic dyes like Congo Red and Acid Orange.
A strategy that combines experiment and simulation to design and optimize electromagnetic (EM) metamaterial absorbers containing a periodic porous structure is described. The approach provides the ability to produce a...
A strategy that combines experiment and simulation to design and optimize electromagnetic (EM) metamaterial absorbers containing a periodic porous structure is described. The approach provides the ability to produce absorbers that meet multiple user-specified objectives. Using the measured intrinsic properties of the baseline materials as an input to EM-field based computational modelling and optimization, absorption by the studied metamaterials measured by their reflection loss (RL) increases significantly. The resulting metamaterials have the potential for lower cost and lighter weight while providing greater protection than traditional metal gaskets and foams.
Aluminum metal matrix composites (MMC) are potential materials for many applications due to their outstanding physical and mechanical properties. Reinforcements in the metallic matrix enhance the qualities of stiffnes...
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Internet of Things (IoT) technology has widely used in industrial production. Most cases focused on designing new equipment or processes. However, small and medium enterprises especially the powder metallurgy manufact...
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ISBN:
(数字)9798350366501
ISBN:
(纸本)9798350366518
Internet of Things (IoT) technology has widely used in industrial production. Most cases focused on designing new equipment or processes. However, small and medium enterprises especially the powder metallurgy manufacturers in Taiwan would not replace existing production equipment due to the finical problems. In this study, an IoT-based platform is conducted to extract the sintering parameters for technology to augment sintering furnaces by installing sensors and data transmission modules, setting a sintering parameter extraction platform for powder metallurgy sintering furnace. Long-term monitoring and remote control are the main technologies for solving three problems during the sintering process, i.e., temperature, atmosphere, and time. Monitoring targets include checking whether the heaters are damaged, ensuring stable air flow meter readings, and verifying the normal speed of the conveyor belt. Additionally, remote control technology has been developed to execute cooling and reheating processes on the sintering furnace. The staying time on-site for personnel is reduced and the sintering time is increased for production increase during working hours.
The world is eager to find a solution to reduce the phenomenon of climate change and transition to sustainable and renewable resources in all facets of our lives as we live in this period. Climate change and the emiss...
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Conventional thermal barrier coatings (TBCs) composed of yttria-stabilized zirconia (YSZ) ceramic top layers and MCrAlY (M = Ni, Co, or their combination) alloy bond coats are prone to brittle fracture and interfacial...
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abstract-Functionalizing chemotherapeutics-loaded liposomes with monoclonal antibodies can enhance their specificity and minimize side effects. Targeting the human epidermal growth factor receptor 2 (HER2), overexpres...
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ISBN:
(数字)9798331516994
ISBN:
(纸本)9798331517007
abstract-Functionalizing chemotherapeutics-loaded liposomes with monoclonal antibodies can enhance their specificity and minimize side effects. Targeting the human epidermal growth factor receptor 2 (HER2), overexpressed in HER2-positive breast cancer, is achievable by coating liposomes with an anti-HER2 monoclonal antibody. This study focused on synthesizing doxorubicin (DOX)-loaded immunoliposomes functionalized with anti-HER2 (HER-lip). The release of the drug from these immunoliposomes was triggered by high-frequency ultrasound (HFUS) and microbubbles, which acted as exogenous cavitation-enhancing agents. The platform was evaluated for size, lipid content, protein concentration, stability, and controlled release profiles. In vitro assessments were also performed, including the MTT assay for cell viability and flow cytometry to evaluate drug uptake. This innovative drug delivery system shows potential for combined therapeutic and diagnostic applications, improving personalized cancer care and treatment
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