macro etching of welded joints

... cycling (Dickerson and Branco, 1997) 2.4  Types of Welded Joints The current Recommendations apply to the improvement of welded planar joints or welded hollow section connections with plate thickness ... strength of welded joints by grinding – techniques and benefits Metal Construction, 18(7), 432–437 Booth G S (1981): The fatigue life of ground or peened fillet welded steel joints – the effect of ... Repair of Welded Joints by Grinding and Peening, IIW Doc XIII-1510-93 Haagensen P J, Dragen A, Slind T and Orjasaeter O (1987): Prediction of the improvement in fatigue life of welded joints...

Ngày tải lên: 24/03/2014, 02:20

... values of stress intensity factor (KI) increased with the increase in crack size The path of crack propagation in case of root crack is longer than that in cases of toe and cold-lab cracks Values of ... crack size  The path of crack propagation in case of root crack is longer than that in cases of toe and cold-lab cracks 35 Journal of American Science 2014;10(1) http://www.jofamericanscience.org ... Hübner, P.: A Finite Element Calculation of Stress Intensity Factors of Cruciform and Butt Welded Joints for Some Geometrical Parameters Jordan Journal of Mechanical and Industrial Engineering...

Ngày tải lên: 24/05/2014, 20:40

Ngày tải lên: 19/03/2014, 16:48

... curves of three kinds of joints Conclusions Table Fatigue strength of three kinds of joints (R = 0.1) Type of joint Fatigue strength (2 Â 106) Dr (MPa) Slope (m) Increase degree (%) As -welded ... of X-direction of three kinds of joints along path P2 in the same coordinate system From Fig 13 we can see that as -welded joints present large tensile stress in this direction Maximum value of ... distribution of X-direction of three kinds of joints along path P2 In order to further verify the accuracy of simulation results and residual compressive stress effects on fatigue life of welded joint,...

Ngày tải lên: 24/05/2014, 20:34

... wet-chemically etched mesa structures of different shapes and sizes (on the order of 10–100 lm) during HF etching The degree of etching suppression (given by the coverage area of unetched structures remaining ... sustaining etching [34] But if the rate of As production exceeds that of oxide formation, or if the type of oxide is stable in the HF, then the etching will be inhibited From laser-induced etching ... self-limitation of the maximum rolling distance of RUNTs allows for the precise tuning of the number of rotations as a function of the sacrificial layer, the illumination permits the exact positioning of the...

Ngày tải lên: 22/06/2014, 00:20

... mean duration of more than eight years between the start of symptoms and the diagnosis of AS is reported [3,4] Such a delay is increasingly unwarranted because of the availability of effective ... History of inflammatory bowel disease present (%) 15 History of uveitis present (%) 15 History of psoriasis present (%) 24 Family history of ankylosing spondylitis present (%) 37 aForty-five of the ... study, the prevalence of Page of (page number not for citation purposes) chronic changes on MRI was low Because of this low prevalence of structural changes, the reliability of scoring these changes...

Ngày tải lên: 09/08/2014, 07:20

... procedure of photo-thermal etching tunnels were formed within the agarose layer according to the trace of the heating spot of laser To create a precise microchamber design, we checked the position of ... purposes) Journal of Nanobiotechnology 2004, 2:7 http://www.jnanobiotechnology.com/content/2/1/7 Figure Photo-thermal etching procedures Photo-thermal etching procedures (a)-(c), preparation of chip surface ... fixation of cell positions and flexible network pattern rearrangement through photo-thermal etching of the agarose layer This manuscript describes our method for controlling the direction of synaptic...

Ngày tải lên: 11/08/2014, 00:22

... portion of wood failure as a percentage graded as follows: 0, 25, 50, 75, 100 % breakage of wood (mean value of all test pieces); − description of further peculiarities of the appearance of the ... thickness of bond-line b = 20,0 ± 0,2 : width of test piece l1 = 150 ± 5: length of test piece s = 5,0 ± 0,1 : thickness of the panels c = grooves for thick bond-line Figure — Example of a bonded ... top of the other in such a way that the angles of the growth rings run in opposite directions Key l1 = length of test piece (150 ± 2) mm b = width of test piece (20 ± 0,2) mm l3 = length of test...

Ngày tải lên: 30/08/2014, 11:14

... course offered to Freshman students? What is the level of students’ performance in the macro- skills of 12 THAI NGUYEN UNIVERSITY Socialist Republic of Vietnam BATANGAS STATE UNIVERSITY Republic of ... the understanding of phonics and the purpose of phonic instruction It is a set of rules that determines the relationships of letters in the spelling of words and the sounds of the spoken language ... F Letter of Request to the Head of Institution 186 ix THAI NGUYEN UNIVERSITY Socialist Republic of Vietnam BATANGAS STATE UNIVERSITY Republic of the Philippines Appendix G Letter of Request...

Ngày tải lên: 02/12/2014, 22:25

... course offered to Freshman students? What is the level of students’ performance in the macro- skills of 12 THAI NGUYEN UNIVERSITY Socialist Republic of Vietnam BATANGAS STATE UNIVERSITY Republic of ... the understanding of phonics and the purpose of phonic instruction It is a set of rules that determines the relationships of letters in the spelling of words and the sounds of the spoken language ... F Letter of Request to the Head of Institution 186 ix THAI NGUYEN UNIVERSITY Socialist Republic of Vietnam BATANGAS STATE UNIVERSITY Republic of the Philippines Appendix G Letter of Request...

Ngày tải lên: 04/12/2014, 05:10

... items in the macroskill of reading which comprised of six items out of 17, followed by writing composed of items out of 10, and lastly by both Listening consists of one item out of five and speaking ... of a general English course offered to Freshman students, the level of students’ performance in the macro- skills of reading, writing, speaking and listening, the relationships between pairs of ... relationship of the inputprocess-output of the study The input covers the learning contents of the general English course, level of students’ performance in the macro- skills and the difficulties of the...

Ngày tải lên: 04/12/2014, 05:11

... describe general etching methods of Si, followed by a brief overview of MACE 1.2 Etching of Silicon There are two types of etching of Si, wet and dry Wet etching involves the use of liquid chemicals ... the effect of trapped H2 bubbles on the etching profile (b)-(d) SEM cross-sectional views of the etching profile with [H2O2] = 0.017 M, [HF] = 1.73M, for samples with Au strip spacings of 2, 5, ... stability of metal-assisted chemical etching (MACE) of Si in HF and H2O2 using isolated Au catalyst The role of electronic holes on etching of Si underneath Au catalyst is presented The role of excess...

Ngày tải lên: 08/09/2015, 18:39

... of solder joint forces under different loading modes 159 4.2.3 Failure force envelope of solder joints 172 4.3 Constitutive and geometrical modeling of solder joints 184 4.3.1 Variation of ... measurement of solder joint dimensions 145 4.1.2 Finite element model of solder joint 150 4.2 Mechanical properties of solder joints 153 4.2.1 Combined loading on solder joints 153 ... 219 5.2 Preliminary study of bending of PCB strip 225 5.2.1 Static bending of PCB strip 225 5.2.2 FEM simulation of PCB strips 228 5.3 Quasi-static bending of PCB with IC packages...

Ngày tải lên: 11/09/2015, 09:58

... Head of Institution of Vocational college .181 (2) To the Head of Institution of ITC 182 (3) To the Head of Institution of BG Ngo Gia Tu College 183 D Documentations (1) Photographs of the ... Performance of Students in the Skill Area of Writing Test 105 Performance of Students in Listening Skills 108 Performance of Students in Speaking Test………… 110 Percent of Each Pair of Test ... the understanding of phonics and the purpose of phonics instruction These are set of rules that determine the relationships of letters in the spelling of words and the sounds of the spoken language...

Ngày tải lên: 26/11/2015, 13:55

Ngày tải lên: 04/07/2016, 17:26

... carbonated soft drinks to non-carbonate drinks Due to the increases of health concern issue, carbonated soft drinks are indicated as unhealthy beverages The sales growth of the carbonated soft drinks ... of product increase - Soft drinks dominate the Australian beverage market: 2/3 of the beverage market is dominated by the soft drinks and fruit juices comprise 13.1% More of the sales are depending ... increase awareness of the health concern (Food Australia, 2003) Scientists The Lancet mentioned in the British medical journal that consumption of soft drinks would have a high risk of getting obesity...

Ngày tải lên: 17/04/2013, 07:05

... applications of the Rudebusch-Wu model illustrate the range of issues that such a macro nance model can address The first of these is an exploration of the source of the Great Moderation—the period of reduced ... preferences fits all of the macroeconomic variables about as well as the standard utility version of the model Even for relatively high levels of risk aversion, the dynamics of the macroeconomic variables ... macro volatility likely also affected the behavior of the term structure of interest rates, and especially the size and dynamics of risk premiums Therefore, Rudebusch and Wu (2007) use their macro- finance...

Ngày tải lên: 17/02/2014, 03:20

... macrophages are the dominant source of MCP-1 ⁄ CCL2 production [19] The levels of MCP-1 ⁄ CCL2 correlate significantly with the levels of IL-1b, IL-6 and IL-8 ⁄ CXCL8 in culture supernatants of ... in the joints of patients T Iwamoto et al positive chondrocytes results in a specific increase in the release of MMP-3 [10] Pathological concentrations of SDF-1 ⁄ CXCL12 induce the death of human ... the recruitment and retention of monocytes and T lymphocytes into the joints [9,12] Although macrophages and FLS are considered to be the most potent producers of chemokines in the synovial compartment,...

Ngày tải lên: 18/02/2014, 18:20

... peak was Fig XRD patterns of ANWs with etching times of 0, 5, and 15 Fig TEM image of a typical ANW It clearly shows the presence of the inner and outer oxide layer of the ANW ARTICLE IN PRESS ... be composed of the byproducts of the reaction between alumina and the anodization or etching solution Based on the results of this study, we suggest a possible mechanism of formation of the two-oxide-layer ... longitudinal view of a naturally formed ANW bundle, which can be observed in region B of Fig The presence of this naturally formed ANW bundle indicates that it is created in the natural course of etching...

Ngày tải lên: 20/03/2014, 13:08

... 1.5 Concentration of macro- element Fig Growth yield of ginseng cell was affected by concentration of macro elements Values are the quotient of the root dry weight after weeks of culture and the ... discussion Effects of macro elements on biomass and ginsenoside production Table and Figure show how growth and yield of ginseng cell were affected by the concentrations of macro elements in the ... Concentration of macro element NH4NO3 KNO3 Determination and analyses Extraction and determination of ginsenoside production were determined as reported previously [8,9] MgSO4 Determination of cell...

Ngày tải lên: 28/03/2014, 10:20