dynamic material properties of solder specimens

Dynamic material characterisation of solder interconnects in microelectronic packaging

Ngày tải lên : 04/10/2015, 17:06

... Modulus of Solder Specimens 51 4.4.1 Comparing Materials 4.4.2 Comparing Microstructure 52 52 iii Table of Contents 4.5 Chapter Summary 56 CHAPTER DYNAMIC MATERIAL PROPERTIES OF SOLDER SPECIMENS ... Compressed Solder Specimens 4.2 Young’s Modulus of Solder Specimens 4.2.1 Comparing Materials 4.2.2 Comparing Microstructure 4.3 Yield of Solder Specimens 46 47 47 48 4.3.1 Comparing Materials 4.3.2 ... Lead-Free Solder 1.3 Objective 1.4 Scope CHAPTER LITERATURE REVIEW 2.1 Solder Material 2.2 Dynamic Material Properties of Solder 2.3 Split Hopkinson Pressure Bar Experiment (SHPB) 10 2.4 Solder...

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The interference of mother tongue as vietnames in learning english souds and stress at high school = ảnh hưởng của tiếng mẹ đẻ đối với việc học âm và trọng âm tiếng anh ở trường phổ thông

Ngày tải lên : 18/12/2013, 21:45

... Pronunciation of Grammatical Endings 30 5.1 Pronunciation of Grammatical Endings in English 30 2.5.1.1 The Importance of Pronunciation of Grammatical Endings .30 5.1.2 Types of Grammatical ... Table of Contents Page Part I: Introduction The Reasons for Choosing the Study The Aims of the Study The Scope of the Study The Methods of the Study ... is defined as the use of elements from ones native language while learning the second language It is one of the causes of error When we learn a foreign language, there are, of course, many other...

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Báo cáo khoa học: Variants of b2-microglobulin cleaved at lysine-58 retain the main conformational features of the native protein but are more conformationally heterogeneous and unstable at physiological temperature potx

Ngày tải lên : 23/03/2014, 11:20

... decrease of the intensity of the diagnostic peaks of Leu23, Ile35, Val37 and Leu40, even after some days The presence of one or more conformational isomers, indicated by the resonance splitting of ... residues of strands D and E, and the facing residues of loop B–C Unfortunately, this analysis could not be extended to dK58-b2m, because of the ambiguous assignment of residues from these regions of ... similarity of the resonance doubling patterns of the two variants This analogy is visualized in Fig 10, where details of NOESY spectra are shown In spite of the different conditions of temperature...

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Báo cáo y học: "A prospective observational study of the relationship of critical illness associated hyperglycaemia in medical ICU patients and subsequent development of type 2 diabetes"

Ngày tải lên : 25/10/2012, 10:02

... of the data Page of Author Details 1Department of Intensive Care Medicine, University Hospital Centre Rebro, Kispaticeva 12, Zagreb 10000, Croatia and 2Division of endocrinology, Department of ... the cut-off value in the Recommendations of the American Heart Association [35] and the trigger for initiation of insulin treatment for ICU patients recommended by the American College of Endocrinology ... prevalence of hyperglycaemic conditions (over 40% of adult Americans [53]) has reached epidemic proportions Recognising conditions that unveil the risk of developing diabetes and prediabetes is thus of...

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Tài liệu The Development of the Feeling for Nature in the Middle Ages and Modern Times doc

Ngày tải lên : 21/02/2014, 20:20

... suggestive myth of Baldur, god of light and spring, killed by blind Hửdur, was the expression of general grief at the passing of beauty The Edda has a touching picture of the sorrow of Nature, of her ... collective picture of heaven and earth, of cloud movement, of the mute life of plants that side of Nature which had almost escaped the eye of antiquity occupied the Northerner most of all 'The Edda ... little Octavius of Minucius Felix, a writing full of genuine human feeling of the time of Commodus, the mixture of the heathen culture and opinions of antiquity with the Christian way of thinking...

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Báo cáo khoa học: Identiﬁcation and characterization of B¢¢-subunits of protein phosphatase 2 A in Xenopus laevis oocytes and adult tissues Evidence for an independent N-terminal splice variant of PR130 and an extended human PR48 protein pot

Ngày tải lên : 08/03/2014, 08:20

... 14693–14698 Van Hoof, C., Ingels, F., Cayla, X., Stevens, I., Merlevede, W & Goris, J (1995) Molecular cloning and developmental regulation of expression of two isoforms of the catalytic subunit of protein ... orthologue of PR48 Moreover, analysis of the structure of the latter made it possible to improve the current knowledge of the mammalian PR48 cDNA To extend these ﬁndings, the genomic structures of the ... analysis of the exon–intron boundaries revealed that a large part of the 5¢-UTR and the complete N-terminal Ó FEBS 2003 speciﬁc part of HPR130 reside in one exon of 2435 bp (exon 2a) Comparison of...

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Báo cáo khoa học: Fatty acid composition of chylomicron remnant-like particles inﬂuences their uptake and induction of lipid accumulation in macrophages pot

Ngày tải lên : 16/03/2014, 12:20

... differential rates of uptake of CRLPs of different fatty acid compositions by macrophages observed in the present study is due to differences in the oxidative state of the particles Evaluation of the lipid ... degree of unsaturation of dietary fatty acids and the development of atherosclerosis (review) J Nutr Biochem 14, 182–195 Lambert MS, Botham KM & Mayes PA (1996) Modiﬁcation of the composition of ... concentrations of cholesterol and TG accumulated were determined In addition, the effects of varying fatty acid composition on the uptake of the CRLPs by the cells was studied using the four types of particle...

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Báo cáo khoa học: Initiation of JC virus DNA replication in vitro by human and mouse DNA polymerase a-primase ppt

Ngày tải lên : 17/03/2014, 03:20

... specificity of SV40 DNA replication is probably the consequence of a failure of SV40 TAg to undergo a productive functional interaction with C-terminal elements of the murine p180 subunit of DNA polymerase ... positions of linearized template DNAs are indicated by arrows characterize further these processes we made use of purified systems Firstly we examined the efficiency of primer formation at the origin of ... was measured after spotting lL of a 200-fold dilution of the replication assay onto GF52 filters (Schleicher & Schull, Dassel, Germany) ¨ EcoRI and DpnI digestion of product DNA was carried out...

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Báo cáo Y học: The role of hydrophobic active-site residues in substrate speciﬁcity and acyl transfer activity of penicillin acylase pdf

Ngày tải lên : 17/03/2014, 23:20

... the performance of PA in the formation of semisynthetic b-lactam antibiotics The X-ray structure of the complex of PA with PAA shows that the acyl binding site of PA is made up of several hydrophobic ... group of the substrate The reduced afﬁnity of the mutants for the phenyl moiety of the substrate was also evident from the twofold to 100-fold increased Ki values for PAA From analysis of the ... because the high value of a of bF24A for synthesis from the amide counteracts the effects of the improved Vs/ Vh ratio of the bF24A mutant DISCUSSION The PA-catalysed synthesis of b-lactam antibiotics...

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state university of new york press dreams in exile rediscovering science and ethics in nineteenth-century social theory apr 2009

Ngày tải lên : 11/06/2014, 12:51

... example of exchanging a surplus of wine for corn is offered by Aristotle “Members of a single household shared all the belongings of that house, but members of different households shared many of ... view of the rise of a market economy based on technical knowledge for material production The resulting alienation of labor, rationalization of social institutions through the virulent spread of ... beauty of the soul He concludes Book of the Politics with the comment that the true concern of the economic management of the household is not the acquisition of commodities but the cultivation of...

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Báo cáo khoa học nông nghiệp " Effects of Stocking Biomass on Growth, Survival and Production of the Two Sizes of Clam Meretrix lyrata Cultured in the Intertidal Areas And Notes on Hatchery Production of Clam Spat " pot

Ngày tải lên : 21/06/2014, 05:20

... highest net profit and investment return of the treatment T3 The stocking biomass of 0.2 kg.m2 therefore, was recommended to maximize profit of the clam cultivation Establishment of commercial ... The objective of this research was to evaluate the effect of stocking biomass of the two sizes of M lyrata on growth performance and survival to enhance the production and profit of cultivation ... maximize profit of the cultivation Quality of the clam expressed as the meat ratio of clam was similar regardless of different stocking size or stocking biomass In addition, the fatty acids of clam...

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Báo cáo lâm nghiệp: "Spatio-temporal patterns of the Norway spruce decline in the Beskid Śląski and Żywiecki (Western Carpathians) in southern Poland" pot

Ngày tải lên : 07/08/2014, 03:22

... conditions MATERIAL AND METHODS The assessment of the intensity and dynamics of the dying of stands was carried out on the basis of the data collected in the SILP System (the Information System of State ... increase of the size of salvage cuttings (including the removal of infested trees) the area of stands affected by the forest decline increased too (Fig 2) In 2003 (the first year of the last “wave” of ... more than 30% of the total area of stands, while the serious mortality (over 2.41 m3/ha – “high” and “catastrophic” level) – on about 40% of the area In 2006 the percentage of the area of stands...

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Báo cáo khoa học: "Survival of avirulent thermostable Newcastle disease virus (strain I-2) in raw, baked, oiled, and cooked white rice at ambient temperatures" pps

Ngày tải lên : 07/08/2014, 23:22

... fo esoprup eht rof laitnesse era seniccav desab-doof devorpmI seirtnuoc gnipoleved ni eniccav a sa desu gnieb yltnerruc si VDN fo 2-I niartS derrucco gol 9.0 fo ssol a ,h 42 rof egarots retfA ... lortnoc a roF gol 0.1 yb deppord retit eht ,lio elbategev htiw dexim ecir htiw tub ,lm 1.0/gol 7.0 05 05 fo ssol rehtruf a saw ereht ,ecir dekooc eht roF ylevitcepser ,ecir dekab dna dekoocnu rof gol ... retitorcim ni demrofrep diulf ciotnalla no tset AH yb syad retfa derusaem saw ytivitca gnitanitulggameh lariv ehT syad rof yliad deldnac dna detabucni erew soyrbme ehT noitulid hcae rof desu erew...

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Báo cáo lâm nghiệp: "Allozyme variation of Pinus pallasiana D. Don in Natural Crimean populations and in plantations in technogenously-polluted areas of the Ukraine steppes" ppsx

Ngày tải lên : 08/08/2014, 01:21

... estimation * Significance level of 95%, ** significance level of 99%, *** significance level of 99.9%, a number of degrees of freedom is stated in brackets Table V Mean values of Wright’s F- and Nei’s ... degree of genetic differentiation of selected groups (TC, TA, TK) and of plantations (A1, A2 and K1, K2) was lower than the natural populations of P pallasiana (C1, C2, C3) Consequently, values of ... genetic potential of possible basic materials needs to be investigated and compared to a reference system of natural populations This comparison can also be very important in the case of Pinus pallasiana,...

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Báo cáo y học: "Differential Constitutive and Cytokine-Modulated Expression of Human Toll-like Receptors in Primary Neutrophils, Monocytes, and Macrophages" docx

Ngày tải lên : 08/08/2014, 16:23

... expression of TLRs was normalized to expression of 18s RNA The final normalized results were calculated by dividing the relative transcript levels of the test genes by the relative amount of the ... in a variety of tissues.[16, 17, 22, 23] This study examined the expression of TLR2, TLR4, TLR5, and TLR9 in normal primary human professional phagocytes Constitutive expression of TLR2, TLR4, ... presence of these cytokines, and realtime rt-PCR technology was employed to quantitatively measure relative transcription of TLR2, TLR4, TLR5 and TLR9 Methods Isolation and culture of cells Human...

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Báo cáo y học: "The active metabolite of leflunomide, A77 1726, increases the production of IL-1 receptor antagonist in human synovial fibroblasts and articular chondrocytes" ppsx

Ngày tải lên : 09/08/2014, 01:23

... novo synthesis of pyrimidines [7,8] The inhibition of DHODH activity by A77 1726 might explain part of its mechanism of action in suppressing inflammation Indeed, many effects of A77 1726 can ... inhibit the expression of monocyte-activating factor at the surface of T lymphocytes, which in turn decreased the activation of monocyte/macrophages, and thus their production of IL-1β and matrix ... the effect of A77 1726 was evaluated in 15 independent cultures of synovial fibroblast, 18 independent cultures of freshly isolated primary chondrocytes and 13 independent cultures of de-differentiated...

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báo cáo khoa học: "The role of 18F-FDG-PET/CT in the preoperative staging and posttherapy follow up of gastriccancer:Comparison with spiral CT" docx

Ngày tải lên : 09/08/2014, 02:20

... registery of our hospital in order to reach the reports of their conventional imaging examinations and other investigations We couldn’t get the results of the medical examinations of of these ... node metastasis The evaluation of distant metastasis showed a rate of 50% overall concordance The subgroup analysis of distant metastases was also done The regions of distant metastasis noted were ... preoperative TNM staging of gastric cancers is spiral CT But as an anatomic imaging method, CT is known to have a low sensitivity and spesificity at N staging of the Page of Table The rates of concordance...

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Báo cáo y học: "Analysis of immunoglobulin light chain rearrangements in the salivary gland and blood of a patient with Sjögren’s syndrome" pptx

Ngày tải lên : 09/08/2014, 03:24

... frequency of the nonproductive Vλ gene rearrangements of peripheral blood B cells from the patient with SS and of normal donors Table Mutational frequency of Vκ gene rearrangements of B cells ... each codon of productively rearranged VL genes of B cells isolated from peripheral blood and from the parotid gland of a patient with Sjögren’s syndrome The frequency of mutation of each codon ... salivary glands of patients with SS There is clear evidence of an inflammatory environment with presentation of self-antigens characteristic of SS [22] that may permit the production of autoantibodies...

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Báo cáo y học: " Effects of cyclophosphamide on pulmonary function in patients with scleroderma and interstitial lung disease: a systematic review and meta-analysis of randomized controlled trials and observational prospective cohort studies" ppt

Ngày tải lên : 09/08/2014, 13:22

... 55% and DLCO < 40% of predicted) have a worse prognosis, with a mortality of 42% within 10 years of the onset of disease [5] A number of agents have been evaluated for treatment of SScrelated ILD ... by an improvement of at least 10% of the predicted value of each measure [12,13] The oral or intravenous administration routes of CYC did not influence the mean difference of the FVC or the DLCO ... American College of Rheumatology criteria [19] and a diagnosis of ILD [20] treated with oral or intravenous CYC The dose of CYC administered differed across the various cohorts of patients Some...

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Báo cáo y học: "Expression of cartilage-derived morphogenetic protein in human intervertebral discs and its effect on matrix synthesis in degenerate human nucleus pulposus cells" potx

Ngày tải lên : 09/08/2014, 14:22

... recovered from patients within 18 hours of death consisted of full thickness wedges of IVD of 120° arc removed anteriorly This allowed well-orientated blocks of tissue incorporating AF and NP to ... cause of LBP is degeneration of the IVD, of which proteoglycan loss is a key feature and has been linked to loss in disc height, de-stabilisation of the motion segment and the ingrowth of blood ... proportions of immunopositive cells in the different areas of the discs (i.e NP v/s IAF, NP v/s OAF and IAF v/s OAF) This analysis was performed using all disc sections regardless of level of degeneration...

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