Advanced Materials Research Vols. 287-290

Abstract: The wet picking and wet repellence of offset papers were studied using IGT-gst2 printability tester according to change printing conditions as printing speed and the amount of fountain solutions. It was showed that the phenomena of wet picking and wet repellence occurred in turn on the surface of offset papers with increased printing speed and the amount of fountain solution. In addition, in contrast with fountain solutions, printing speed had greater influence on the phenomena of wet picking and wet repellence of offset papers.

Abstract: Tensile and compressive silicon nitride films as contact etch stop layers (CESL) are deposited on the poly-gate of N/PMOSFETs providing the strains to the channels. Different strained engineering technologies, previously determined by various processes and firmly verified by testing, set up different environments for carriers to transport. It is quite reasonably conclusive that compressive CESL benefits NMOS devices more while tensile CESL favors PMOS devices more. This phenomenon may be also true as the temperature effects are taken into concern. Higher temperatures tend to thermally disturb the carriers making the effective mass modified. The consistency and the known techniques can be applied to the nano-node generation development.

Abstract: By selecting different elasticity coefficients, the result of that the pressure distributions on contact human body and human’s subjective feelings were tested. Through analyzing and comparing, the conclusion was reached: 1) different elasticity coefficients of mattresses would affect the comfort on human body; 2) the medium elasticity coefficient of mattresses would provide maximum comfort; 3)the conclusion was validated by both objective test results and human’s subjective feelings.

Abstract: Electrical energy meter is one of the most important metrology equipments．It is also a kind of metrology apparatus for commercial exchange．Its credibility is important to consumers and corporations of electrical power especially after the legislation of “one meter for each family”．It is related to one’s immediate and vital interests of average masses directly．Therefore，the verification of electrical energy meters becomes more and more important. The context of Electrical energy meter working mechanism, functions, and its technical conditions and detection method introduced.

Abstract: With the speed up of the train, higher performance demands are put forward to the materials which have friction function. The friction materials produced by power metallurgy technology have a lot of advantages, such as good wear resistance, better thermal conductivity, bearing high lord, work reliably and so on. So they are used widely in the fields such as auto industry, aerospace and so on. The application of metal powder metallurgy technology in preparation friction materials of railway vehicles was researched in this paper, such as brake-shoe, brake lining of train braking, pantograph slide of electric locomotive, electrify boots slider of the maglev train and so on. This kind of friction material has superior performance and better prospects.

Abstract: IR micro-imaging technology is a new kind of analytical technology, which combines direct-visualizing image and infrared spectroscopy analysis. Each pixel in the IR micro-image is a whole IR spectrum, therefore, IR micro-image contains not only the information of spatial distribution but also the information of spectrum with hundreds of wavelength points. In this study, the feasibility of using IR micro-imaging to detect cypermethrin on the surface of apple skin was discussed, both cypermethrin single substance powder and the apple skin that was sprayed with cypermethrin single substance solution were used as research objects, IR micro-image and infrared spectrum were all analyzed. The results showed that IR micro-image of cypermethrin single substance powder could effectively reflect the information of spatial distribution, and the characteristic peak corresponding to molecular structure of cypermethrin could also be observed in the IR spectrum which extracted from IR micro-image of cypermethrin single substance powder. In the infrared spectrum of the apple skin that sprayed with cypermethrin single substance solution, four characteristic absorption peaks corresponding to cypermethrin which were located at 1591 cm^-1, 1489 cm^-1 , 1290 cm^-1and 801 cm^-1 were observed, which confirmed that there was cypermethrin existed on the apple skin. The present study indicated that the detection of cypermethrin on the surface of apply by IR micro-imaging technology was feasible, which provided a good foundation for the detection of fruit and vegetable pesticide residues by IR micro-imaging technology.

Abstract: A novel method termed field activated and low pressure assisted combustion synthesis (FALPCS) was developed for an in situ fabrication of TiC-Al composite from Ti, C and Al elemental powders. With the Al content of 30 wt% and application of a pressure as low as 2 MPa, a highly dense sample was successfully obtained on a versatile Gleeble thermal simulation instrument. The TiC particles are fine in the order of ~0.5 µm, with a uniform dispersion in aluminum. The study on un-lubricated sliding wear of the synthesized material revealed a wear mechanism that combines the characteristics of both adhesive and three-body abrasions.

Abstract: Compared with the traditional upstream dam slope construction method, the extrusion side wall technology has many advantages. such as less process steps, little interference, quick construction speed etc ,So it arouse more and more attention in the engineer design and construction fields . The technology of extrusion concrete side wall applied to the construction of concrete face rockfill dam in the Bailian river storage power station, machinery and equipment were used on the cushion material to form a concrete wall extrusion , which avoid the traditional process of Ultra-filled cushion material, rolling slopes, cut slopes and other complicated process, not only ensure the quality, but also improve the stress state of the panel.

Abstract: In order to control the print-through, the value of print-through resistance (PTR for short) was put forward to predict the print-through of lithograph. For 5 given paper samples, the relationships between their PTR and print-through (expressed with ΔD) was explored under three sets of printing condition in this paper. The results showed that the PTR increase could lead to decrease of the print-through value. In particular, no matter what kind of conditions, the print-through value was almost smaller than 0.04 when the PTR of those paper samples was larger than 72%, which seems to be the absence of print-through phenomenon.

Abstract: The cymbal piezoelectric energy conversion device is set in the sole in this system. Using positive piezoelectric effect, it can convert vibration energy into electric energy when people walking. It exports AC (Alternating Current) voltage. AC voltage is rectified to DC (Direct Current) voltage and steadied to 4.2. The mobile telephone Li charger is charged by DC voltage. The max charge current is 300, and the min charge current is 100 . A Li battery that is discharged to 3.2 can be charged up to 3.6 through 2 hours when a human whose weight is 60is walking with the speed of 23 steps/sec.