in situ photography of picosecond laser ablation of nickel
in situ photography of picosecond laser ablation of nickel
... In situ photography of picosecond laser ablation of nickel D.A. Willis 1 ,X.Xu * School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA Abstract This ... reserved. Keywords: Picosecond laser; Ablation; Heat transfer; Homogeneous nucleation; Phase explosion 1. Introduction Ablation of materials using short pulsewidth lasers is a topic...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of ultrafast laser ablation of fused silica film
... study the interaction between ultrafast laser pulses and fused sil- ica and the resulting ablation. The main goal of this study is to investigate the ultrafast laser ablation process of fused silica, ... 2008 Abstract Ultrafast laser ablation of fused silica is studied using molecular dynamics simulations. Ionization and gen- eration of free electrons, absorption of the...
Ngày tải lên: 06/05/2014, 08:54
Si nanowires synthesized by laser ablation of mixed sic and sio2 powders
... fringes are 111 lattice planes with a spacing of 0.25 nm. found in the SiNWs products by using other starting wx materials 13 . The results of HRTEM show that the green web is a mixture of SiNWs ... are shown in Fig. 3b. In this figure, the Ä4 fringes are 111 crystalline planes with a lattice spacing of 0.25 nm. This value fits with the standard Ä4 111 crystalline plane of b-S...
Ngày tải lên: 16/03/2014, 15:08
molecular dynamics simulation of thermal and thermomechanical phenomena in picosecond laser material interaction
... simulation of thermal and thermomechanical phenomena in picosecond laser material interaction Xinwei Wang a, * , Xianfan Xu b a Department of Mechanical Engineering, N104 Walter Scott Engineering Center, ... in ul- trafast laser materials interaction are of great impor- tance for ultrafast laser processing and non-destructive detection. In recent years, a large amount of...
Ngày tải lên: 06/05/2014, 08:54
Báo cáo y học: " Experimental ablation of the pancreas with high intensity focused ultrasound (HIFU) in a porcine model"
... , Chongqing HaifuTech Co., Ltd, Chongqing City, China). The in- strument was composed of three parts: a firing system located in a degassed water tank, an imaging system consisting of an ultrasound ... safe for the ablation of the pan- cr e a s in a swine model. Our results provide evidence supporting the clinical application of HIFU in patients with pancreatic cancer....
Ngày tải lên: 25/10/2012, 11:18
ANALYSIS OF MICROBIAL COMMUNITY STRUCTURE AND IN SITU ACTIVITY OF NITRIFYING BIOFILMS
... occurrence of specific microorganisms in biofilms. As an example of the combined study, we will illustrate the in situ spatial organization of ammonia-oxidizing and nitrite-oxidizing bacteria on fine ... performed. In situ hybridization of vertical biofilm thin sections clearly indicated that the numbers of probe NEU-stained NH 4 + -oxidizing bacteria (i.e., Nitrosomonas...
Ngày tải lên: 05/09/2013, 08:40
Báo cáo khoa học: In situ proton NMR analysis of a-alkynoate biotransformations ppt
... characterization of the strain We isolated a strain from rotten fruits by aerobic enrichment cultures in liquid minimal medium containing 2-butynedio- ate as the sole carbon source. The bacterial strain was classified ... characterization of the initial acetylene hydratase is inevitable. In case of the other, more common enzymes, which are involved a genomic sequence analysis and a c...
Ngày tải lên: 08/03/2014, 08:20
Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation
... paid recently to the investigation of SiNWs. Until now, a variety of techniques on synthesizing SiNWs have been developed, including lithography and etching techniques [10,11], scanning tunneling mi- croscopy ... powders showed that the temperature of substrate for col- lecting SiNWs played a dominant role in control- ling the diameter of SiNWs and the formation of various kinds...
Ngày tải lên: 16/03/2014, 15:09
micelle-assisted synthesis of polyaniline magnetite nanorods by in situ self - assembly process
... China. a multitude of applications, such as in gas sensitivity, sensors, and inductors [11–13]. In recent years, there has been increas- ing interest in the synthesis of conductive organic/inorganic nanocomposites. ... 2008 Abstract Polyaniline/magnetite nanocomposites consisting of polyaniline (PANI) nanorods surrounded by magnetite nanoparticles were prepared via an in situ...
Ngày tải lên: 20/03/2014, 13:04
Báo cáo khoa học: Identification of a preferred substrate peptide for transglutaminase 3 and detection of in situ activity in skin and hair follicles pdf
... to act cooperatively in the cross-linking of proteins, including involucrin, loricrin and small proline-rich proteins (SPRs). Such concerted reactions result in formation of the cornified envelope ... consisting of covalent cross- links of proteins beneath the plasma membrane of terminally differentiated keratinocytes [23,24]. Further- more, TGase 3 in hair follicles is involve...
Ngày tải lên: 29/03/2014, 21:20