Papers by Keyword: CIP

Abstract: In case of underground construction affected by groundwater, CIP (Cast-In-Place Pile) method is generally used to solve the geo-hydraulic problem. However, as this method has poor connectivity between piles, an auxiliary method for cut-off is required in many cases. In this study, a newly-developed cut-off wall (H-CIP) with no auxiliary method, by using surfactant grout (Hi-FA), which improves anti-washout and infiltration ability, is introduced, and the field applicability of H-CIP method is evaluated. CIP and H-CIP piles were installed with same ground conditions, and field and laboratory tests were conducted to verify the performance, respectively. As results, newly-contrived H-CIP method shows higher field performance for cut-off and strength than conventional CIP method.

Abstract: The paper explains the Ethernet/IP and CIP communication protocol and its application in the industrial automation systems, and designs a software system based on many construction cases,which can be transplanted to variety of the medium.

Abstract: Through the analysis on the type of deposition of dirt which is produced from the beer, beverage and dairy production devices. And through the discussion on physicochemical analysis and the principle of cleaning, the test of inorganic dirt cleaning and organic dirt cleaning was conducted. The formula for cleaning was optimized at the same time. From the results of the test, it suggested that it is possible for the single-phase CIP acidic cleaning agent and the developed CIP cleaning process to replace the traditional five-step CIP cleaning process.

Abstract: In this paper, a scheme of remote control equipment based on Industrial Ethernet is designed, which provides a communication interface selection of remote control for self-development users. This design has the characteristics of simple, flexibility, reliability, and it can be run in Linux system.

Abstract: In this paper, two-dimensional laminar natural-convection heat transfer of air has been numerically solved by Cubic Interpolated Method known as CIP which is based on the Eulerian mesh grid generation. For this investigation a cavity has been selected as a geometry which is being heated from bottom of the cavity at three different positions, the sides of the cavity are cold and the top of the cavity is adiabatic and no heat exchange exist there. The cavity is being heated from three different position of the bottom which is equal in length and equal but in three different position of left, center and right in equally distance. The whole simulation takes place in two various Grasshof number and air has been taken as fluid inside cavity. Prantl number has been set to 0.7 throughout the simulation. Results are presented in the form of streamlines and isothermal plots inside the cavity. The results illustrate the heat for middle heated plate is distributed symmetrically through the cavity.

Abstract: The cross section of Permanent Uni-Wall System (PUS) is formed by circular casing and special casing. As for the special casing cross section of PUS, it is difficult to calculate the shear strength because of atypical section. This study conducted a shear test for three specimens, the variable of which is the shape of the PUS cross section, without the shear reinforcing bar. The test results showed that the shear strength of the specimens had a resisting force larger than the nominal shear strength by ACI318. It was also found that the specimens of PUS’s special casing cross section and the specimen of the equivalent rectangular cross section had a similar level of shear strength.

Abstract: For bone implant NiTi foams with a structure (69.3-69.9% porosity and 150-400μm pore size) were fabricated by CIP and sintering with NaCl space-holders. A maximum compressive strength of 30.90Mpa and a ultimate compressive ductility of 33.5% were obtained. Moreover, 81-89% of the strain recovered after inducing shape-memory effect. In particular, the pores completely replicate the shape and size of the NaCl powders. It provides a powerful tool to tailor the pore structure and mechanical properties of NiTi foams to match the demand of bone implant. Simple processing route and low cost allow these foams to be a suitable candidate for bone implant applications.

Abstract: Recently, the surface mounting devices (SMD) have been rapidly developed for miniaturisation of electronic applications such as cellular phones, cameras, computers, etc. Low temperature sintering NiCuZn and MnCuZn ferrite was employed at most cases due to its co-firability with Ag (below 960OC).The purpose of this study is to fabricate NiCuZn and MnCuZn ferrite sintered body with high-strength and high-frequency magnetic properties. Following is the procedure: firstly, NiCuZn and MnCuZn ferrite powder were synthesized under CO2 atmosphere at 500 OC from the mixed doxalate synthesized by liquid phase deposition method; then a small amount of boric acid [H3BO3] was added to the powder, and the NiCuZn and MnCuZn ferrite powder compact were prepared with Newton press and CIP methods; finally, NiCuZn and MnCuZn ferrite sintered body was fabricated by sintering at 900 OC under CO2 atmosphere. The effect of boric acid additives on growth of particle and sintering temperature were discussed. The high frequency magnetic properties and density as well as bending strength of the NiCuZn and MnCuZn sintered magnet with various adding of H3BO3 as well as at various sintered temperatures were evaluated by using Impedance analyzer, TMA (Thermo Mechanical Analyzer), TEM (Transmission Electronic Microscopy) and 3-point bending test. From the evaluated results, the most suitable producing conditions were determined and NiCuZn ferrite with wider scope of high frequency and high bending strength were obtained.

Abstract: In this paper, Experimental results on the measurement of mechanical properties of fine patterns in the MEMS structure are described. The mechanical properties of embossing patterns on metallic thin foil is measured using the nano indentation system, that is developed by Korea Institute of Industrial Technology(KITECH). These micro embossing patterns are fabricated using CIP(Cold Isostatic Press) process on micro metallic thin foils(Al-1100) that are made by rolling process. These embossing patterned metallic thin foils(Al-1100) are used in the reflecting plate of BLU(Back Light Unit) and electrical/mechanical MEMS components. If these mechanical properties of fine patterns are utilized in a design procedure, the optimal design can be achieved in aspects of reliability as well as economy.

Abstract: Low temperature sintering NiCuZn ferrite was employed at most cases due to its co-firability with Ag (below 960°C). The purpose of this study is to fabricate NiCuZn ferrite sintered body with high-strength and high-frequency magnetic properties. Following is the procedure: firstly, NiCuZn ferrite powder was synthesized under CO2 atmosphere at 500°C from the mixed doxalate synthesized by liquid phase deposition method; then a small amount of boric acid [H3BO3] was added to the powder, and the NiCuZn ferrite powder compact was prepared with Newton press and CIP methods; finally, NiCuZn ferrite sintered body was fabricated by sintering at 900°C under CO2 atmosphere. By this method, NiCuZn ferrite sintered body with 0.5 mass% boric acid was obtained, which was additive with strength 340 MPa, high frequency applied scope below 20MHz and initial permeability 38.