Background: Polymer composites when reinforced with heavy metals in the form of micro/nano particles are efficient gamma- and X-ray shielding materials providing such advantageous features as cost-effectiveness, light-weight factor, flexibility, non-toxicity, conformability over conventional shields. Materials and Methods: In this paper the influence of weight percentages and particle sizes of ...

A homogeneous α-cellulose film was prepared by a regeneration method from ZnCl2/CaCl2/cellulose mixed system and further combined with sodium lignosulfonate (SLS) via crosslinking through intermolecular hydrogen bonds “bridge linkages”. The physicochemical antibacterial performance of films were investigated results showed that the modified exhibited stronger tensile strength, higher thermal st...

Crack tip shielding phenomena, whereby the "effective crack-driving force" actually experienced at the crack tip is locally reduced, are examined with reference to fatigue crack propagation behavior in metals, composites and ceramics. Sources of shielding are briefly described in terms of mechanisms relying on the production of elastically constrained zones which envelop the crack (zone shieldi...

Effective radiation shielding is imperative to safe operation of modern Medical Cyclotrons producing large activities of short-lived radioisotopes on a commercial basis. Like the containment shielding of Medical Linear Accelerators (1), the optimal shielding design of Medical Cyclotrons demands a careful balance between the radiological, economical and often the sociopolitical factors. One is r...

Radar reflectivity (Zh), differential reflectivity (Zdr), and specific differential phase (Kdp) measured from the operational, polarimetric weather radar located in Trappes, France, were used to examine the effects of radar beam shielding on rainfall estimation. The objective of this study is to investigate the degree of immunity of Kdp-based rainfall estimates to beam shielding for C-band rada...

Action of electric and magnetic fields and their interaction effects are the basis of operation of every electrical and electronic instrument. But such action fields could also cause serious problems to the functioning of those instruments if they act on them unnecessarily, to the extreme, failure of the system may also occur. To avoid such unpleasant consequences arising out of unwanted electr...

Bright debris discs can contain large amounts of CO gas. This gas was thought to be a protoplanetary remnant until it recently shown that could released in collisions volatile-rich solids. As is released, interstellar UV radiation photodissociates producing CI, which shield allowing mass accumulate. However, this picture challenged because CI inefficient at shielding if and are vertically mixed...

The chemical composition of the inner region protoplanetary disks can trace planetary building material. exact elemental disk has not yet been measured and tensions between models observations still exist. Recent advancements have shown UV-shielding to be able increase emission organics. Here, we expand on these investigate how may impact in 5 au. In this work, use model from arxiv:2204.07108 i...

While shielding in collisional, strongly magnetized (one-dimensional) plasmas obeys the standard Debye result, shielding in collisionless, immobile ion plasmas is far more complex than commonly believed. In some circumstances, the plasma will antishield a positive test charge; i.e., the plasma becomes more positive in the neighborhood of a positive test charge. When shielding does occur, it res...

In this paper, we propose alternate self shielding to remove critical transitions of on-chip global interconnect. Our proposed method alternates shield and signal wires cycle by cycle. The conventional self-shielding methods need additional wires to remove critical transition by encoding. The proposed alternate self-shielding, however, requires no additional wires. We evaluate our method by sim...