For high-efficiency NH3 synthesis via ambient-condition electrohydrogenation of inert N2, it is pivotal to ingeniously design an active electrocatalyst with multiple features abundant surfacial deficiency, good conductivity and large surface area. Here, oxygen-deficient SnO2 nanoparticles encapsulated by ultrathin carbon layer (d-SnO2@C) are developed hydrothermal deposition coupled annealing p...

We propose a public key infrastructure framework, inspired by modern distributed cryptocurrencies, that allows for tunable key escrow, where the availability of key escrow is only provided under strict conditions and enforced through cryptographic measures. We argue that any key escrow scheme designed for the global scale must be both inert — requiring considerable effort to recover a key — and...

The action of inert automorphisms on finite sets of periodic points of mixing subshifts of finite type is characterized in terms of the sign-gyrationcompatibility condition. The main technique used is variable length coding combined with a “nonnegative algebraic K-theory” formulation of state splitting and merging. One application gives a counterexample to the Finite Order Generation Conjecture...

abstract wenner direct contact method is a method of estimating apparent electrical conductivity (eca) of agricultural soils in situ. this method can be affected by factors such as quality of electrodes in contact with soil, type of employed electric current, moisture content, clay content and compaction of soil. in this research, the effect of electrode type (rod and plate) and electric curren...

The ballast water treatment method consists of bubbling the inert gas via a row of pipes (orifices at the bottom of the pipes) located at the bottom of the tank, while maintaining a negative pressures of -2 psi at the ullage space. The inert gas from a standard shipboard inert gas generator is composed of 84% Nitrogen, 12-14% CO2 and 2% Oxygen. The ballast water will be equilibrated with gas fr...

a modified electrode was prepared by modification of the carbon paste electrode (cpe) with graphene nano-sheets. the fabricated modified electrode exhibited an electrocatalytic activity toward gallic acid (ga) oxidation because of good conductivity, low electron transfer resistance and catalytic effect. the graphene modified cpe had a lower overvoltage and enhanced electrical current respect to...

The effect of an inert solid deposit on uniform CO2 corrosion of mild steel is modeled based on a mechanistic electrochemical CO2 corrosion model. Laboratory testing has shown that the dominant factors introduced by the inert solids deposit are related to surface coverage, where both anodic and cathodic reaction rates are decreased because of less active surface area being exposed. The inert so...

The review focused on the applications of tungsten inert gas a (TIG) metal (MIG) welding processes. Each process was critical studied to understand operations and need maintain safety reliable weld with adequate mechanical properties. In addition, various in aerospace, aeronautic, automotive food packaging industries were critically highlighted. However, there potentials as well problems highli...

Welding is a technique used for joining metal parts usually during the application of heat. There are many types of welding, including an electric arc welding this means that process in which forms metal work piece and electrode, leads to heat metals cause them melt, connect with inert metallic gas (MIG). This study clarifies conclusion parameters such as travel speed, current wire feeding spee...