The cofferdam method is generally applied in the construction of underwater pier foundation bridge engineering, and pouring bottom sealing concrete one important links cofferdam. can prevent water seepage balance main body cofferdam, its structural size quality have a great influence on above functions. Under condition large level difference, it difficult to determine reasonable thickness concr...

Foundation paper piecing is a popular technique for constructing fabric patchwork quilts using printed patterns. But, the construction process imposes constraints on geometry of pattern and order in which pieces are attached to quilt. Manually designing foundation pieceable patterns that meet all these challenging. In this work we mathematically formalize use formalization develop an algorithm ...

lack of sewage collection systems, percolation of surface waters, and seepage of wells have raised the groundwater table in shiraz area in the south of iran. the growing population generates environmental pollution resulting in the degradation of the quality of surface and groundwaters used for agriculture. inorganic and organic pollutants have been traced in shiraz water resources. heavy metal...

To study the mechanical characteristics of complex pile-cap foundations and distribution law hydrodynamic pressure acting on piles cap in deep-water environments, 60 m foundation Xihoumen rail-cum-road bridge was considered for this investigation. This paper focused introducing design implementation process simulating an earthquake using underwater shaking-table test a 1 : model systematically ...

The settlement behavior of composite foundations plays an important role in the serviceability and stability subgrade or other infrastructures supporting foundation. However, water-rich flood plains, due to complexity soft soil properties, has not been well understood. objective this study is investigate effects various key factors on with deep mixed piles highway plains. investigated operation...

We have investigated laser ablation as a microfabrication approach to produce micro fuel cells (MFCs) in silicon. Picosecond pulses (15 ps) at a wavelength of 355 nm are used to make all of the MFC structures. To assess the benefits and drawbacks of laser ablation, reference cells have been produced by deep reactive ion etching (DRIE) using matching geometries. Ablated and etched cells have bee...