With the advent of big data era, centers (DCs) related energy use accounts for approximately 3% global electric power consumption. As augmentation data-processing performance and thermal density in DCs, its will undoubtedly continuously burst. Meanwhile, potential safety hazards, caused by IT equipment local overheating, threaten safe operation restrict further development DCs. Thus, efficient ...

In this paper, concrete specimens are immersed in ultrapure water, to study the evolutions of surface permeability, pore structure and paste microstructure following the prolonging of immersion period. According to the results, after 30-day immersion, the surface permeability of concrete becomes higher as compared with the value before immersion. However, further immersion makes the surface per...

Data centers are recognized as one of the most important aspects fourth industrial revolution since conventional data inefficient and have dependency on high energy consumption, in which cooling is responsible for 40% usage. Therefore, this research proposes immersion method to solving consumption by its component using two types dielectric fluids. Four stages experimental methods used, such fl...

Welding is a process of joining two or more metals into form connection using heat process. This study aims to determine the value bending test strength on SMAW welding E6013 electrode, variations electric current, namely 100A, 110A, 120A and cooling media. The method used with AISI 1037/ST37 material. type seam V-slope slope 600 according AWS d1.1:2000 standardization. carried out Three Point ...

I . The effects of 4-6 h of water immersion on the renal excretion of water and electrolytes were studied in thirteen normal male subjects in balance on a constant diet containing 150 mEq of Na and 100 mEq of K per day. Each subject was studied during a control period, consisting of quiet sitting, and during water immersion to the neck. 2. Immersion resulted in a natriuresis beginning within th...

In the final paper of the Graph Minors series N. Robertson and P. Seymour proved that graphs are well-quasi-ordered under the immersion ordering. A direct implication of this theorem is that each class of graphs that is closed under taking immersions can be fully characterized by forbidding a finite set of graphs (immersion obstruction set). However, as the proof of the well-quasi-ordering theo...

in this paper we will determine the multiple point manifolds of certain self-transverse immersions in euclidean spaces. following the triple points, these immersions have a double point self-intersection set which is the image of an immersion of a smooth 5-dimensional manifold, cobordant to dold manifold $v^5$ or a boundary. we will show there is an immersion of $s^7times p^2$ in $mathbb{r}^{13...