Down to the wire: The cultural clock of physicists and the discourse of consensus

1997 ◽  
Vol 26 (4) ◽  
pp. 479-505 ◽  
Author(s):  
Elinor Ochs ◽  
Sally Jacoby
Keyword(s):  
Experimental Data ◽  
Scientific Discourse ◽  
Time Limit ◽  
Temporal Organization ◽  
Time Limits ◽  
Working Through ◽  
Physical Universe ◽  
The Wire ◽  
University Laboratory

ABSTRACTThis study examines how deadlines and time limits for conference talks organize the discourse of consensus among collaborating experimental and theoretical physicists in a university laboratory Six months of videotaped observations, including two cycles of conference talk preparation, indicate that, as the date of an upcoming conference nears, several things happen (a)Co-authoring physicists usually have not achieved agreement on all aspects of the findings (b)They nevertheless direct their energies to constructing a hybrid presentation rhetoric that satisfies the co-authors and fits the talk to the official conference talk time limit (c) In the process of working through matters of rhetoric – what to say, what to display visually, what to leave out, and in what order the information should be presented – the physicists construct a working consensus on matters of physics theory and experimental data explaining the properties and dynamics of the physical universe (Scientific discourse, consensus, temporal organization, rhetoric )

Efectele pandemiei SARS-CoV-2 asupra activității și procedurii în fața Curții Europene a Drepturilor Omului

2021 ◽  
Vol 2021 (2021) ◽  
pp. 147-163
Author(s):  
Corneliu-Liviu POPESCU ◽  
Keyword(s):  
Human Rights ◽  
Time Limit ◽  
European Convention ◽  
Time Limits ◽  
European Court ◽  
Procedural Time

At the beginning of the SARS-CoV-2 pandemic, the European Court of Human Rights ruled and then extended the decision to suspend part of its activity, as well as certain procedural time-limits, including time-limit for referral to the Court through the means of a state or an individual application. These measures do not comply with the European Convention on Human Rights, nor with the Rules of the Court. The control of the regularity of these measures may be exercised by the judicial formations of the Court, acting in the specific cases.

scholarly journals Influence of Energy Parameters of Micro WEDM on Kerf

2012 ◽  
Vol 576 ◽  
pp. 527-530
Author(s):  
Mohammad Yeakub Ali ◽  
W.Y.H. Liew ◽  
S.A. Gure ◽  
B. Asfana
Keyword(s):  
Experimental Data ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Kerf Width ◽  
Wire Electrical Discharge Machining ◽  
Machining Parameters ◽  
Wire Electrode ◽  
Wire Vibration ◽  
The Wire ◽  
Micro Wedm

This paper presents the estimation of kerf width in micro wire electrical discharge machining (micro WEDM) in terms of machining parameters of capacitance and gap voltage. An empirical model is developed by the analysis of variance (ANOVA) of experimental data. Using a wire electrode of 70 µm diameter, a minimum kerf width is found to be 92 µm for the micro WEDM parameters of 0.01 µF capacitance and 90.25 V gap voltage. Around 30% increament of the kerf is found to be high. The analysis also revealed that the capacitance is more influential parameter than gap voltage on kerf width produced by micro WEDM. As the gap voltage determines the breakdown distance and affects the wire vibration, the wire vibration factor is to be considered in the analysis and in formulation of model in future study.

Measurement of Pressure Drop in a Liquid Metal Reactor Fuel Assembly

2002 ◽  
Author(s):  
Seok Ki Choi ◽  
Il Kon Choi ◽  
Kil Yong Lee ◽  
Ho Yun Nam ◽  
Jong Hyeun Choi ◽  
...  
Keyword(s):  
Experimental Data ◽  
Pressure Drop ◽  
Liquid Metal ◽  
Fuel Assembly ◽  
Diameter Ratio ◽  
Pressure Drops ◽  
Liquid Metal Reactor ◽  
The Wire ◽  
Measured Pressure ◽  
Reactor Fuel Assembly

An experimental study has been carried out to measure the pressure drop in a 271-pin fuel assembly of a liquid metal reactor. The rod pitch to rod diameter ratio (P/D) of the fuel assembly is 1.2 and the wire lead length to rod diameter ratio (H/D) is 24.84. Measurements are made for five different sections in a fuel assembly; inlet orifice, fuel assembly inlet, wire-wrapped fuel assembly, fuel assembly outlet and fuel assembly upper region. A series of water experiments have been conducted changing flow rate and water temperature. It is shown that the pressure drops in the inlet orifice and in the wire-wrapped fuel assembly are much larger than those in other regions. The measured pressure drop data in a wire-wrapped fuel assembly region is compared with the existing four correlations. It is shown that the correlation proposed by Cheng and Todreas fits the best with the present experimental data among the four correlations considered.

International Court of Justice

1962 ◽  
Vol 16 (1) ◽  
pp. 217-217 ◽  
Keyword(s):  
United Kingdom ◽  
Time Limit ◽  
International Court Of Justice ◽  
Time Limits ◽  
The United Kingdom ◽  
Court Of Justice ◽  
International Court ◽  
The Republic ◽  
The Government

Case concerning the Northern Cameroons (Cameroun v. United Kingdom): In an order of July 6, 1961, the International Court of Justice fixed the time limits for the filing of pleadings in the case concerning the Northern Cameroons as follows: for the memorial of the Republic of Cameroun, November 1, 1961; and for the countermemorial of the United Kingdom, March 1, 1962. Subsequently, in an order of November 2, 1961, the Court, in accordance with a request from the agent of the government of the Republic of Cameroun, extended to January 3, 1962, the time limit for the filing of the memorial of the Republic of Cameroun and to May 2, 1962, the time limit for the filing of the countermemorial of the United Kingdom.

Transient kinetics of nucleation and crystallization: Part II. Crystallization

1991 ◽  
Vol 6 (10) ◽  
pp. 2097-2102 ◽  
Author(s):  
G. Shi ◽  
J.H. Seinfeld
Keyword(s):  
Experimental Data ◽  
Large Time ◽  
Volume Fraction ◽  
Time Dependent ◽  
Transient Kinetics ◽  
Amorphous Phases ◽  
Time Limits ◽  
The Stability ◽  
Analytical Expressions ◽  
Kinetics Of

Analytical expressions for the time-dependent crystallized volume fraction are derived from new results for the transient rate of nucleation reported in Part I. Conventional formulations that have been used in interpreting crystallization experimental data and for assessing the stability of amorphous phases are shown to be large time limits of the newly derived expressions. An approach for assessing the stability of an amorphous phase is proposed.

scholarly journals THE SMALL AND LARGE TIME IMPLIED VOLATILITIES IN THE MINIMAL MARKET MODEL

2012 ◽  
Vol 15 (08) ◽  
pp. 1250057
Author(s):  
ZHI JUN GUO ◽  
ECKHARD PLATEN
Keyword(s):  
Interest Rates ◽  
Implied Volatility ◽  
Large Time ◽  
Time Limit ◽  
Market Model ◽  
Explicit Formulas ◽  
Time Limits ◽  
Long Run ◽  
Minimal Market Model ◽  
Short Time

This paper derives explicit formulas for both the small and the large time limits of the implied volatility in the minimal market model. It is shown that interest rates do impact on the implied volatility in the long run, even though they are negligible in the short time limit.

Porosity and Effective Thermal Conductivity of Wire Screens

1990 ◽  
Vol 112 (1) ◽  
pp. 5-9 ◽  
Author(s):  
Won Soon Chang
Keyword(s):  
Experimental Data ◽  
Thermal Conductivity ◽  
Theoretical Model ◽  
Effective Thermal Conductivity ◽  
Present Model ◽  
Model Based ◽  
Wire Screen ◽  
Simple Theoretical Model ◽  
Parallel Conduction ◽  
The Wire

A simple theoretical model based on combined series and parallel conduction for the effective thermal conductivity of fluid-saturated screens has been developed. The present model has been compared with the existing correlations and experimental data available in literature, and it has been found that the model is effective in predicting thermal conductivity. The study also demonstrates that it is important to include the actual thickness of the wire screen in order to calculate the porosity accurately.

The Superposition of Longitudinal Sonic Oscillations on the Wire Drawing Process

1968 ◽  
Vol 183 (1) ◽  
pp. 545-562 ◽  
Author(s):  
C. E. Winsper ◽  
D. H. Sansome
Keyword(s):  
Experimental Data ◽  
Torsional Oscillation ◽  
Longitudinal Mode ◽  
Wire Drawing ◽  
Drawing Process ◽  
Drawing Force ◽  
The Coefficient Of Friction ◽  
The Wire ◽  
Oscillatory Energy ◽  
Good Agreement

Part 1: Characteristics of complete wire drawing apparatus Part 1 describes the wire drawing machine, instrumentation and oscillatory apparatus designed to establish the effects of applying oscillatory energy to the wire drawing process. A theoretical consideration of the vibration of the equipment is included and compared with experimental data. Tests were performed on a 3000 lbf bull-block and the oscillatory energy was supplied in a longitudinal mode from a 3000 lbf electro-hydraulic oscillator. Equipment was designed to measure drawing force, drawing torque, amplitude of die and drum oscillation, and drawing speed. Frequencies of die oscillation in the range 0–125 Hz were studied with amplitudes up to 0.070 in peak to peak. A study of process parameters, such as natural frequency of the system, damping of the bull-block drive, torsional oscillation of the drum, and die assembly inertia, showed that the analysis was in good agreement with experimental data and that it can be used to predict the effect of oscillations on the forces and torques acting during oscillatory wire drawing. Part 2 presents experimental data obtained from mild steel, hard aluminium, stainless steel and hard copper. Results show that there is no reduction in the peak drawing force and negligible reduction in the coefficient of friction. The results also confirm that oscillatory drawing is a mechanical process of straining and unstraining the drawn wire, and that the reduction in mean force can be determined by a mechanism of force superposition.

scholarly journals Safety proposals for freediving time limits should consider the metabolic-rate dependence of oxygen stores depletion

2020 ◽  
Vol 50 (4) ◽  
pp. 356-362
Author(s):  
Charlotte Sadler ◽  
◽  
Kaighley Brett ◽  
Aaron Heerboth ◽  
Austin R Swisher ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Ambient Pressure ◽  
Time Limit ◽  
Rate Dependence ◽  
Breath Hold ◽  
Time Limits ◽  
Oxygen Stores ◽  
Hyperbaric Medicine ◽  
Rate Interaction ◽  
Healthy Participants

(Sadler C, Brett K, Heerboth A, Swisher AR, Mehregani N, Touriel R, Cannon DT. Safety proposals for freediving time limits should consider the metabolic-rate dependence of oxygen stores depletion. Diving and Hyperbaric Medicine. 2020 December 20;50(4):356–362. doi: 10.28920/dhm50.4.356-362. PMID: 33325016.) Introduction: There is no required training for breath-hold diving, making dissemination of safety protocols difficult. A recommended breath-hold dive time limit of 60 s was proposed for amateur divers. However, this does not consider the metabolic-rate dependence of oxygen stores depletion. We aimed to measure the effect of apnoea time and metabolic rate on arterial and tissue oxygenation. Methods: Fifty healthy participants (23 (SD 3) y, 22 women) completed four periods of apnoea for 60 s (or to tolerable limit) during rest and cycle ergometry at 20, 40, and 60 W. Apnoea was initiated after hyperventilation to achieve PETCO2 of approximately 25 mmHg. Pulse oximetry, frontal lobe oxygenation, and pulmonary gas exchange were measured throughout. We defined hypoxia as SpO2 < 88%. Results: Static and exercise (20, 40, 60 W) breath-hold break times were 57 (SD 7), 50 (11), 48 (11), and 46 (11) s (F [2.432, 119.2] = 32.0, P < 0.01). The rise in PETCO2 from initiation to breaking of apnoea was dependent on metabolic rate (time × metabolic rate interaction; F [3,147] = 38.6, P < 0.0001). The same was true for the fall in SpO2 (F [3,147] = 2.9, P = 0.03). SpO2 fell to < 88% on 14 occasions in eight participants, all of whom were asymptomatic. Conclusions: Independent of the added complexities of a fall in ambient pressure on ascent, the effect of apnoea time on hypoxia depends on the metabolic rate and is highly variable among individuals. Therefore, we contend that a universally recommended time limit for breath-hold diving or swimming is not useful to guarantee safety.

scholarly journals Influence of Torsion on Matteucci Effect Signal Parameters in Co-Based Bistable Amorphous Wire

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 532 ◽  
Author(s):  
Tomasz Charubin ◽  
Michał Nowicki ◽  
Roman Szewczyk
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Critical Current ◽  
Output Signal ◽  
Amorphous Wire ◽  
Digital Output ◽  
Magnetic Field Sensors ◽  
Amorphous Wires ◽  
Signal Parameters ◽  
The Wire

The Matteucci effect (ME) is one of the lesser-known magnetomechanical effects and is most prominent in bistable amorphous wires. It has some experimental applications—Matteucci effect-based magnetic field sensors are very easy to produce and have inherently linear, hybrid analog/digital output signal. The effect is still poorly understood, however, and although it relies on torsion of the wire to manifest, there is no available model, or much experimental data, which would quantitatively connect the ME with the sample twist. In this paper, experimental characteristics of ME signal parameters dependence on torsion in Co-based amorphous bistable wire are presented. The results hint at possible applications, such as rotation or critical current sensors, as well as the necessity of torsion control in the development of ME magnetic field sensors.

Sign in / Sign up

Export Citation Format

Share Document