The impermeability of concrete the exterior wall underground tunnel in water-rich stratum is a key concern engineers. Taking Aixihu highway Nanchang city as an example, side tested, through multiple tests, such embedded steel pipe, water injection, and field observation. results show that, under action 2mpa pressure, no flow permeates from tunnel, indicating that impermeable performance this se...

Mathematical treatment of massive wall systems is a useful tool for investigation of these solar applications. The objectives of this work are to develop (and validate) a numerical solution model for predication the thermal behaviour of passive solar systems with massive wall, to improve knowledge of using indirect passive solar systems and assess its energy efficiency according to climatic con...

A novel approach based on the Poisson spot effect in a conventional optical lithography system is presented for fabricating large-scale ordered ring patterns at low cost, in which the pattern geometries are tuned by controlling the exposure dose and deliberate design of the mask patterns. Following this by cryogenic deep etching, the ring patterns are transferred into Si substrates, resulting i...

Thin stone wall cladding systems used on exterior building envelopes typically consist of stone panels made of granite. There is a risk of detachment if the cement used to stack the panels is defective. There is awide range of destructive techniques to evaluate the state of the facades, but they are scarcely practical. Infrared thermography (IRT) offers a cost-effective alternative to tradition...

Developing a vision for an economically competitive fusion energy system remains the grand challenge for fusion researchers. Meeting this challenge requires advances in plasma physics and in fusion technology, a key element of which is Fusion Power Technology (FPT), also called Fusion Nuclear Technology (FNT). FPT is concerned with all reactor components in the immediate exterior of the plasma,...