Cryogenic transmission electron microscopy has revolutionized structural biology and materialsscience, but achieving temperatures below the boiling point of liquid nitrogen remains a long-standing aspiration. We intr...
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Herein, coupling of noble metal-free plasmonic copper nanoparticles with tungsten suboxide and supporting on zeolite nanoclay (Cu/WO3-x@ZNC) composite will be introduced for bi-functional photocatalytic ciprofloxacin ...
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In order to promote the development of the next generation of nano-spintronic devices, it is of great significance to tune the freedom of valley in two-dimensional (2D) materials. Here, we propose a mechanism for mani...
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Silicon(Si)is one of the most promising anode materials for the next generation of lithium-ion battery(LIB)due to its high specific capacity,low lithiation potential,and natural ***,the huge variation in volume during...
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Silicon(Si)is one of the most promising anode materials for the next generation of lithium-ion battery(LIB)due to its high specific capacity,low lithiation potential,and natural ***,the huge variation in volume during the storage of lithium,along with the low conductivity of element,are the main factors hindering its commercial *** micro-nano structures as well as composites of heterogeneous materials have proven to be effective strategies to overcome these *** technology is an affordable and scalablemethod for easily constructing a unique hierarchical micro-nano structurewhile realizing composites of *** far,many efforts have been made to solve the problems of Si-based anodes with general *** review considers the technical fundamental and design strategies for electrospun Si-based nanofibers,including preparation processes,structural engineering,and lithiumstorage *** structure-performance relationship of various materials and the effects of compositing with heterogeneous materials are explored in ***,the remaining challenges are discussed,along with directions for future *** review will provide inspiration for researchers in the design and manufacture of electrospun Si-based nanofibers for LIBs.
Damage and defects that occur in printed circuit board assembly (PCBA) often lead to the disposal of expensive components. In cases where laminate and circuitry have been removed, traditional repairs in the manufactur...
Damage and defects that occur in printed circuit board assembly (PCBA) often lead to the disposal of expensive components. In cases where laminate and circuitry have been removed, traditional repairs in the manufacturing process have not been able to return devices into service. This study examines the use of aerosol jet printing (AJP) and traditional engineering fluid dispensing (EFD) as methods to service repairs of damaged *** mount component failures on PCBAs may occur as a result of a bad solder joint or problems with the component. In order to salvage such a PCBA, the component must be physically removed from the board and a new be attached. During the removal of PCBA components, pad cratering may occur, where the pad and laminate are damaged/removed along with the component. This leaves behind a crater in place of the pad, rendering the board unrepairable and thus, unusable. Trace damage is another common failure in PCBs. A repair to either sort of damage often requires reconnections of intricate circuitry to be made. Trace repair has traditionally been serviced by soldering a wire between the undamaged regions, rerouting the connection. In the case of fine conductive traces, as seen in devices which are becoming smaller as heterogeneous packaging innovations continue to progress, traditional methods will not be able to service this sort of *** jet printing, a direct-write additive manufacturing process commonly used in flexible hybrid electronics, could save expensive PCBs by repairing cratered pads and damaged traces. The use of AJP has been successful in repairing damaged modules, however the process has not been optimized for general repairs on FR4. The use of AJP and EFD to repair damaged circuitry on FR4 laminate and to fill pad craters with copper nanoparticle ink is demonstrated. Copper ink structures are uniformly sintered to achieve a solderable surface and good adhesion to the exposed laminate and remaining copper on the PCB. P
Predictive synthesis of aqueous organic solutions with desired liquid-solid phase equilibria could drive progress in industrial chemistry, cryopreservation, and beyond, but is limited by the predictive power of curren...
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It has long been known that, fundamentally different from a large body of rarefied gas, when a Knudsen gas is immersed in a thermal bath, it may never reach thermal equilibrium. The root cause is nonchaoticity: as the...
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In this study, gallium oxide (Ga2O3) nanorods were deposited onto an indium tin oxide (ITO) glass substrate to develop a real-time living cell viability sensor. Ga2O3 nanorods had characteristics of cell population se...
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Background: Fungicides, like carbendazim, have effects on male fertility. There have been sufficient studies conducted on certain chemical compounds to indicate a selective action at the epididymis level. To prevent c...
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This article offers a distinct survey of a multiphase flow through a uniform channel. The electro-osmotic phenomenon is the main source of the flow. Fourth-grade fluid model is used as the base liquid which is suspend...
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