scholarly journals The Centripetal Force of Expression: Drawing Embodied Histories into Glassblowing

2022 ◽  
Vol 3 (3) ◽  
pp. 113-134
Author(s):  
Erin O’Connor
Keyword(s):  
Problem Solving ◽  
Current Practice ◽  
Ethnographic Research ◽  
Centripetal Force ◽  
Personal Style ◽  
A Current

Getting at the tacit understandings of an artful practice is critical in coming to understand the processes of creativity. To achieve this, the researcher, specifically the ethnographer, must place herself in the position of the maker, that is she must herself, make and create. This article provides an account of arriving at the methodological imperative of in situ ethnographic research through actual ethnographic research on the relation of maker and material. From an in situ position, it theorizes the modalities of expression in practice, from problem-solving, to personal style, to the intentional drawing in of embodied histories in practice. This incorporation of varying embodied histories into a current practice is then explored as the possibility for affecting what is recognized in the field as ”new” or ”innovative”. We will see, however, that is affect is grounded more in the corporeal revealing of unexpected aspects of the material worked up.

scholarly journals A TECHNIQUE FOR MOUNTING AND PRESERVING PEAT SOIL MONOLITHS

1983 ◽  
Vol 63 (4) ◽  
pp. 753-755 ◽  
Author(s):  
HENRI DINEL
Keyword(s):  
Current Practice ◽  
Peat Soil ◽  
Organic Soils ◽  
Soil Profiles ◽  
Soil Material ◽  
Color Structure ◽  
Teaching Aids ◽  
Mineral Soils ◽  
A Current

The mounting and. preserving of soil profiles is a current practice to keep reference soils for scientific needs, teaching aids and display purposes. Techniques described in the literature (Berger and Muckenhirn 1945; Bushnell 1930; Day 1968; van Baren and Bomer 1979; Hammond 1974) have been proven satisfactory for mineral soils. However, when applied to organic soils, they have failed to minimize changes to the physical (shrinkage) and chemical (oxydation) nature of the soil material. The proposed technique offers an alternative which reduces shrinkage on drying and fixes the physical and morphological features such as color, structure and appearance in their in situ state. Key words: Peat, organic soils, monoliths, polyester mounting

Structure of Palladium Single-Crystal Films Prepared by Flash Evaporation onto (001) NaCl Substrates

1970 ◽  
Vol 28 ◽  
pp. 456-457
Author(s):  
L. E. Murr ◽  
G. Wong
Keyword(s):  
Single Crystal ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
High Rate ◽  
Flash Evaporation ◽  
Optimum Load ◽  
Single Crystal Films ◽  
Crystal Films ◽  
A Current

Palladium single-crystal films have been prepared by Matthews in ultra-high vacuum by evaporation onto (001) NaCl substrates cleaved in-situ, and maintained at ∼ 350° C. Murr has also produced large-grained and single-crystal Pd films by high-rate evaporation onto (001) NaCl air-cleaved substrates at 350°C. In the present work, very large (∼ 3cm2), continuous single-crystal films of Pd have been prepared by flash evaporation onto air-cleaved (001) NaCl substrates at temperatures at or below 250°C. Evaporation rates estimated to be ≧ 2000 Å/sec, were obtained by effectively short-circuiting 1 mil tungsten evaporation boats in a self-regulating system which maintained an optimum load current of approximately 90 amperes; corresponding to a current density through the boat of ∼ 4 × 104 amperes/cm2.

Sample Preparation of Aluminum Bridge Test Vehicles for Tem In-Situ Crystallographic Studies of Electromigration

1987 ◽  
Vol 115 ◽  
Author(s):  
W. E. Rhoden ◽  
J. V. Maskowitz ◽  
D. R. Kitchen ◽  
R. E. Omlor ◽  
P. F. Lloyd
Keyword(s):  
High Temperature ◽  
Sample Preparation ◽  
Integrated Circuit ◽  
Circuit Reliability ◽  
Test Vehicle ◽  
Aluminum Films ◽  
Current Densities ◽  
Integrated Circuit Reliability ◽  
A Current

IntroductionElectromigration in aluminum films has been identified as an increasing concern for integrated circuit reliability. Electromigration is the mass transport of atoms in a conductor under a current stress. Electromigration occurs in conductors experiencing current densities greater than 105 A/cm2 and is accelerated by high temperature. The damage to aluminum films manifests itself in the formation of voids, hillocks and whiskers along the conductor. This paper presents a test vehicle preparation procedure which can be used to investigate electromigration.

Condensation of the chromatin at the membrane of an apoptotic nucleus is not associated with activation of an endonuclease

1993 ◽  
Vol 104 (2) ◽  
pp. 317-326 ◽  
Author(s):  
F. Oberhammer ◽  
G. Fritsch ◽  
M. Schmied ◽  
M. Pavelka ◽  
D. Printz ◽  
...  
Keyword(s):  
Dna Fragmentation ◽  
Early Event ◽  
Tgf Beta ◽  
Hoechst 33258 ◽  
Nucleolar Structure ◽  
Nuclear Changes ◽  
Rigorous Test ◽  
A Current ◽  
Mouse Lymphoma

A current hypothesis holds that chromatin fragmentation into oligonucleosomal patterns is an early event during apoptosis. In contrast, induction of apoptosis in cultured hepatocytes by TGF-beta 1 was not associated with DNA fragmentation into oligonucleosomes in hepatocyte monolayers and apoptotic fragments. For a more rigorous test of the hypothesis we performed a number of experiments. We compared nuclear changes resulting from TGF-beta 1 with those induced by Ca2+, a known activator of endonuclease. The morphology of apoptotic and Ca(2+)-treated nuclei was different as judged by DNA staining with Hoechst 33258. Likewise, electron microscopy of apoptotic nuclei showed characteristic condensation of the chromatin as well as dissolution of the nucleolar structure and nuclear fragmentation, changes not seen after Ca2+ treatment, after three hours of incubation. Analysis of DNA fluorescence of nuclei by FACS revealed that treatment with Ca2+ reduced the signal by 20%. In contrast, nuclei from TGF-beta 1-treated hepatocytes did not exhibit a reduced signal and after sorting by FACS, apoptotic nuclei remained in the 2N and 4N fractions. The absence of detectable DNA fragmentation in apoptotic nuclei was further verified by in situ nick translation, not only in hepatocytes but also in a mouse lymphoma cell line. From these findings we conclude that activation of an endonuclease is not an early event on the pathway to morphologically recognizable apoptosis.

scholarly journals ‘In-Situ Split' Liver Resection/ALPPS - Historical Development and Current Practice

2017 ◽  
Vol 33 (6) ◽  
pp. 408-412 ◽  
Author(s):  
Hans J. Schlitt ◽  
Christina Hackl ◽  
Sven Arke Lang
Keyword(s):  
Liver Resection ◽  
Historical Development ◽  
Current Practice ◽  
Split Liver ◽  
In Situ Split

scholarly journals Hermeneutic Inquiry: Paying Heed to History and Hermes An Ancestral, Substantive, and Methodological Tale

2002 ◽  
Vol 1 (3) ◽  
pp. 1-21 ◽  
Author(s):  
Nancy J. Moules
Keyword(s):  
Current Practice ◽  
Living Tradition ◽  
Hermeneutic Inquiry ◽  
Interpretive Inquiry ◽  
The Right ◽  
A Current

Hermeneutic or interpretive inquiry is a living tradition of interpretation with a rich legacy of theory, philosophy, and practice. This paper is not intended to be a treatise on the right way to view and practice this tradition, but an exploration of the legacies that inform the philosophy of practice as the author has taken it up. In this explication, the author examines the ancestral, philosophical, and methodological histories that inform a current practice of hermeneutic inquiry.

In-situ measurement of the current transformer burden in a current transformer testing system using a shunt resistor

Measurement ◽  
2007 ◽  
Vol 40 (9-10) ◽  
pp. 876-882 ◽  
Author(s):  
Jae Kap Jung ◽  
Jeon Hong Kang ◽  
Sang Hwa Lee ◽  
Myungsoo Kim
Keyword(s):  
Current Transformer ◽  
In Situ Measurement ◽  
Testing System ◽  
A Current

Electromigration of Electroplated Gold Interconnects

2005 ◽  
Vol 863 ◽  
Author(s):  
Steve Kilgore ◽  
Craig Gaw ◽  
Haldane Henry ◽  
Darrell Hill ◽  
Dieter Schroder
Keyword(s):  
Activation Energy ◽  
Diffusion Mechanism ◽  
Time To Failure ◽  
Ambient Temperatures ◽  
Temperature Coefficients ◽  
Current Stressing ◽  
Monitoring Technique ◽  
The Times ◽  
A Current

AbstractElectromigration tests were performed on passivated electroplated Au four terminal Kelvin line structures using the conventional in situ resistance monitoring technique. The stress conditions were a current density of 2.0 MA/cm2 with ambient temperatures ranging from 325°C to 375°C. The temperature coefficients of resistance (TCR) values were measured prior to current stressing to calculate the Joule heated film temperatures. The times to failure (lifetimes) for the Au line structures were considered as a 50% ΔR/R0 change. The median time to failure (t50%) was plotted against the inverse film temperature to determine the activation energy value as 0.59 ± 0.09 eV. Failure analysis of void location and suggested diffusion mechanism will be discussed.

Problem Solving and Risk Management Methodology

2021 ◽  
pp. 378-395
Author(s):  
Esmeralda Andrade Hernández ◽  
Gregorio Fernández-Lambert ◽  
David Lara Alabazares ◽  
Yesica Mayett Moreno ◽  
Laurent Geneste
Keyword(s):  
Risk Management ◽  
Problem Solving ◽  
Knowledge Base ◽  
Continuous Improvement ◽  
Management Problem ◽  
Current Event ◽  
The Past ◽  
Risk Management Methodology ◽  
Past Experiences ◽  
A Current

Intending to lead organizations to continuous improvement, this chapter proposes a methodology that involves three axes: risk management, problem- solving, and feedback experience. This methodology allows organizations to characterize the experiences they have already confronted, as well as new experiences (which can be risks or problems) with the use of taxonomies established by the organization. It also enables them to capitalize and exploit their knowledge base. This work proposes a best-use approach of the past experiences that are similar to a current event and facilitate their treatment and provide solutions. The authors take the feedback as a point of articulation between the two methodologies because it is a mechanism that offers knowledge where it can be found that the organizations must avoid and take advantage of.

scholarly journals Rapid Synthesis of Metallic Reinforced in Situ Intermetallic Composites in Ti-Al-Nb System via Resistive Sintering

2018 ◽  
Vol 16 (1) ◽  
pp. 869-875
Author(s):  
Mediha İpek ◽  
Tuba Yener ◽  
Gözde Ç. Efe ◽  
Ibrahim Altınsoy ◽  
Cuma Bindal ◽  
...  
Keyword(s):  
High Hardness ◽  
Processing Technique ◽  
Metallic Phase ◽  
Matrix Composites ◽  
Intermetallic Matrix ◽  
One Step ◽  
Intermetallic Matrix Composites ◽  
Hardness Values ◽  
A Current

AbstractIntermetallics are known as a group of materials that draws attention with their features such as ordered structure, high temperature resistance, high hardness and low density. In this paper, it is aimed to obtain intermetallic matrix composites and also to maintain some ductile Nb and Ti metallic phase by using 99.5% purity, 35-44 μm particle size titanium, niobium and aluminium powders in one step via recently developed powder metallurgy processing technique - Electric current activated/assisted sintering system (ECAS). In this way, metallic reinforced intermetallic matrix composites were produced. Dominant phases of TiAl3 and NbAl3 which were the first compounds formed between peritectic reaction of solid titanium, niobium and molten aluminum in Ti-Al-Nb system during 10, 30 and 90 s for 2000 A current and 1.5-2.0 voltage were detected by XRD and SEM-EDS analysis. Hardness values of the test samples were measured by Vickers indentation technique and it was detected that the hardnesses of intermetallic phases as 411 HVN whereas ductile metallic phase as 120 HVN.

Sign in / Sign up

Export Citation Format

Share Document