7 CFR 3575.88 - Transfers and assumptions.

Code of Federal Regulations, 2011 CFR

2011-01-01

... requirements: (1) All transfers to ineligible borrowers will include a one-time nonrefundable transfer fee to... fees. Transfer fees are a one-time nonrefundable cost to be collected by the lender at the time of... time of transfer, and (ii) The lender must certify that the transferor has cooperated in good faith...

Test results of the STI GPS time transfer receiver

NASA Technical Reports Server (NTRS)

Hall, D. L.; Handlan, J.; Wheeler, P.

1983-01-01

Global time transfer, or synchronization, between a user clock and USNO UTC time can be performed using the Global Positioning System (GPS), and commercially available time transfer receivers. This paper presents the test results of time transfer using the GPS system and a Stanford Telecommunications, Inc. (STI) Time Transfer System (TTS) Model 502. Tests at the GPS Master Control Site (MCS) in Vandenburg, California and at the United States Naval Observatory (USNO) in Washington, D.C. are described. An overview of GPS, and the STI TTS 502 is presented. A discussion of the time transfer process and test concepts is included.

77 FR 6310 - Electronic Fund Transfers (Regulation E)

Federal Register 2010, 2011, 2012, 2013, 2014

2012-02-07

... a one-time transfer or the first in a series of preauthorized transfers to occur more than 10 days... disclosures and receipts where a consumer schedules a one-time transfer or the first in a series of... where a consumer schedules a one-time transfer or the first in a series of preauthorized transfers to...

Preliminary Comparison of Two-Way Satellite Time and Frequency Transfer and GPS Common-View Time Transfer During the INTELSAT Field Trial

NASA Technical Reports Server (NTRS)

Davis, John A.; Lewandowski, W.; DeYoung, James A.; Kirchner, Dieter; Hetzel, Peter; deJong, Gerrit; Soering, A.; Baumont, F.; Klepczynski, William; McKinley, Angela Davis;

12 CFR 1005.36 - Transfers scheduled in advance.

Code of Federal Regulations, 2013 CFR

2013-01-01

...: § 1005.36 Transfers scheduled before the date of transfer. (a) Timing. (1) For a one-time transfer...) For a one-time transfer scheduled five or more business days in advance or for the first in a series... 12 Banks and Banking 8 2013-01-01 2013-01-01 false Transfers scheduled in advance. 1005.36 Section...

26 CFR 1.504-2 - Certain transfers made to avoid section 504(a).

Code of Federal Regulations, 2014 CFR

2014-04-01

... transferee commonly controlled. A transfer is described in this paragraph (b)(3) only if, at the time of the transfer or at any time during the transferee's ten taxable years following the year in which the transfer... section, by the same person or persons who control the transferor. (4) Time of transfer. A transfer is...

26 CFR 1.504-2 - Certain transfers made to avoid section 504(a).

Code of Federal Regulations, 2011 CFR

2011-04-01

... transferee commonly controlled. A transfer is described in this paragraph (b)(3) only if, at the time of the transfer or at any time during the transferee's ten taxable years following the year in which the transfer... section, by the same person or persons who control the transferor. (4) Time of transfer. A transfer is...

26 CFR 1.504-2 - Certain transfers made to avoid section 504(a).

Code of Federal Regulations, 2012 CFR

2012-04-01

... transferee commonly controlled. A transfer is described in this paragraph (b)(3) only if, at the time of the transfer or at any time during the transferee's ten taxable years following the year in which the transfer... section, by the same person or persons who control the transferor. (4) Time of transfer. A transfer is...

26 CFR 1.504-2 - Certain transfers made to avoid section 504(a).

Code of Federal Regulations, 2010 CFR

2010-04-01

... transferee commonly controlled. A transfer is described in this paragraph (b)(3) only if, at the time of the transfer or at any time during the transferee's ten taxable years following the year in which the transfer... section, by the same person or persons who control the transferor. (4) Time of transfer. A transfer is...

12 CFR 1005.3 - Coverage.

Code of Federal Regulations, 2014 CFR

2014-01-01

...-time electronic fund transfer from a consumer's account. The consumer must authorize the transfer. (ii... one-time electronic fund transfer (in providing a check to a merchant or other payee for the MICR... transfer. A consumer authorizes a one-time electronic fund transfer from his or her account to pay the fee...

Time Transfer Methodologies for International Atomic Time (TAI)

DTIC Science & Technology

2007-01-01

International Atomic Time (TAI) and Coordinated Universal Time (UTC) involve either GPS or Two Way Satellite Time and Frequency Transfer ( TWSTFT ). This paper...NRCan, provide real-time carrier-phase based time transfer as well [3,4] Beginning in 2000, time-transfer links using TWSTFT replaced some GPS...links as the primary operational link, and currently over half the clocks used for TAI-generation are linked to other sites via a direct TWSTFT link

33 CFR 156.150 - Declaration of inspection.

Code of Federal Regulations, 2014 CFR

2014-07-01

... operation if not at a facility; (3) The date and time the transfer operation is started; (4) A list of the... transfer operations on the transferring vessel or facility and a space for the date, time of signing... transferring product; and (6) The date and time the transfer operation is completed. (d) The form for the...

33 CFR 156.150 - Declaration of inspection.

Code of Federal Regulations, 2010 CFR

2010-07-01

... operation if not at a facility; (3) The date and time the transfer operation is started; (4) A list of the... transfer operations on the transferring vessel or facility and a space for the date, time of signing... transferring product; and (6) The date and time the transfer operation is completed. (d) The form for the...

33 CFR 156.150 - Declaration of inspection.

Code of Federal Regulations, 2012 CFR

2012-07-01

... operation if not at a facility; (3) The date and time the transfer operation is started; (4) A list of the... transfer operations on the transferring vessel or facility and a space for the date, time of signing... transferring product; and (6) The date and time the transfer operation is completed. (d) The form for the...

33 CFR 156.150 - Declaration of inspection.

Code of Federal Regulations, 2011 CFR

2011-07-01

... operation if not at a facility; (3) The date and time the transfer operation is started; (4) A list of the... transfer operations on the transferring vessel or facility and a space for the date, time of signing... transferring product; and (6) The date and time the transfer operation is completed. (d) The form for the...

33 CFR 156.150 - Declaration of inspection.

Code of Federal Regulations, 2013 CFR

2013-07-01

... operation if not at a facility; (3) The date and time the transfer operation is started; (4) A list of the... transfer operations on the transferring vessel or facility and a space for the date, time of signing... transferring product; and (6) The date and time the transfer operation is completed. (d) The form for the...

Optimal ballistically captured Earth-Moon transfers

NASA Astrophysics Data System (ADS)

Ricord Griesemer, Paul; Ocampo, Cesar; Cooley, D. S.

2012-07-01

The optimality of a low-energy Earth-Moon transfer terminating in ballistic capture is examined for the first time using primer vector theory. An optimal control problem is formed with the following free variables: the location, time, and magnitude of the transfer insertion burn, and the transfer time. A constraint is placed on the initial state of the spacecraft to bind it to a given initial orbit around a first body, and on the final state of the spacecraft to limit its Keplerian energy with respect to a second body. Optimal transfers in the system are shown to meet certain conditions placed on the primer vector and its time derivative. A two point boundary value problem containing these necessary conditions is created for use in targeting optimal transfers. The two point boundary value problem is then applied to the ballistic lunar capture problem, and an optimal trajectory is shown. Additionally, the problem is then modified to fix the time of transfer, allowing for optimal multi-impulse transfers. The tradeoff between transfer time and fuel cost is shown for Earth-Moon ballistic lunar capture transfers.

Effect of atmospheric anisoplanatism on earth-to-satellite time transfer over laser communication links.

PubMed

Belmonte, Aniceto; Taylor, Michael T; Hollberg, Leo; Kahn, Joseph M

2017-07-10

The need for an accurate time reference on orbiting platforms motivates study of time transfer via free-space optical communication links. The impact of atmospheric turbulence on earth-to-satellite optical time transfer has not been fully characterized, however. We analyze limits to two-way laser time transfer accuracy posed by anisoplanatic non-reciprocity between uplink and downlink. We show that despite limited reciprocity, two-way time transfer can still achieve sub-picosecond accuracy in realistic propagation scenarios over a single satellite visibility period.

Does time of transfer from critical care to the general wards affect anxiety? A pragmatic prospective cohort study.

PubMed

McCairn, Amanda J; Jones, Christina

2014-08-01

To examine prospectively the impact of transfer time on patient anxiety. A pragmatic prospective cohort study. 14 bed adult intensive care unit (ICU) in a National Health Service teaching hospital trust in the United Kingdom. Critically ill patients staying on the ICU for at least 24 hours and clinically ready for transfer to the general ward completed the Hospital Anxiety and Depression Scale questionnaire (Zigmond and Snaith, 1983) at: pre-transfer - on the critical care (when they were clinically ready for transfer to the general ward), post-transfer - on the general ward. The post-transfer median (range) score for anxiety was 6 (4-10) for day time and higher at 12.5 (9-16) for night time; this was found to be statistically significant U=80, p=0.011, r=0.37 and the post-transfer incidence of anxiety cases was 22% (8/36) for day time and higher at 64% (7/11) for night time; this was found to be statistically significant U=91, p=0.007, r=0.39. This study suggests that transfers at night time are more anxiety provoking for patients than transfers in the day time. Copyright © 2014 Elsevier Ltd. All rights reserved.

Time transfer using NAVSTAR GPS

NASA Technical Reports Server (NTRS)

Vandierendock, A. J.; Hua, Q. D.; Mclean, J. R.; Denz, A. R.

1982-01-01

A time transfer unit (TTU) developed for the U.S. Naval Observatory (USNO) has consistently demonstrated the transfer of time with accuracies much better than 100 nanoseconds. A new time transfer system (TTS), the TTS 502 was developed. The TTS 502 is a relatively compact microprocessor-based system with a variety of options that meet each individual's requirements, and has the same performance as the USNO system. The time transfer performance of that USNO system and the details of the new system are presented.

Evaluation of Time Transfer Units for Time and Frequency Transfer in Optical Fibers Utilizing a Passive Technique Based on SONET/SDH

DTIC Science & Technology

2012-01-01

precision and accuracy. For instance, in international time metrology, two-way satellite time and frequency transfer ( TWSTFT ) (see e.g. [1] and...can act as a time transfer system that is complementary to other high quality systems such as TWSTFT and GPS. REFERENCES [1] J. Levine. “A

The impact of precipitation on land interfacility transport times.

PubMed

Giang, Wayne C W; Donmez, Birsen; Ahghari, Mahvareh; MacDonald, Russell D

2014-12-01

Timely transfer of patients among facilities within a regionalized critical-care system remains a large obstacle to effective patient care. For medical transport systems where dispatchers are responsible for planning these interfacility transfers, accurate estimates of interfacility transfer times play a large role in planning and resource-allocation decisions. However, the impact of adverse weather conditions on transfer times is not well understood. Precipitation negatively impacts driving conditions and can decrease free-flow speeds and increase travel times. The objective of this research was to quantify and model the effects of different precipitation types on land travel times for interfacility patient transfers. It was hypothesized that the effects of precipitation would accumulate as the distance of the transfer increased, and they would differ based on the type of precipitation. Urgent and emergent interfacility transfers carried out by the medical transport system in Ontario from 2005 through 2011 were linked to Environment Canada's (Gatineau, Quebec, Canada) climate data. Two linear models were built to estimate travel times based on precipitation type and driving distance: one for transfers between cities (intercity) and another for transfers within a city (intracity). Precipitation affected both transfer types. For intercity transfers, the magnitude of the delays increased as driving distance increased. For median-distance intercity transfers (48 km), snow produced delays of approximately 9.1% (3.1 minutes), while rain produced delays of 8.4% (2.9 minutes). For intracity transfers, the magnitude of delays attributed to precipitation did not depend on distance driven. Transfers in rain were 8.6% longer (1.7 minutes) compared to no precipitation, whereas only statistically marginal effects were observed for snow. Precipitation increases the duration of interfacility land ambulance travel times by eight percent to ten percent. For transfers between cities, snow is associated with the longest delays (versus rain), but for transfers within a single city, rain is associated with the longest delays.

Evaluation of a GPS Receiver for Code and Carrier-Phase Time and Frequency Transfer

DTIC Science & Technology

2010-11-01

2], and carrier-phase [3]. NIST also employs GPS time transfer as the backup link to Two Way Satellite Time and Frequency Transfer ( TWSTFT ) [4...4] D. Kirchner, 1999, “Two-Way Satellite Time and Frequency Transfer ( TWSTFT ): Principle, Implementation, and Current Performance,” Review of

12 CFR 380.9 - Treatment of fraudulent and preferential transfers.

Code of Federal Regulations, 2012 CFR

2012-01-01

... provided in paragraph (c)(2) of this section, a transfer shall be deemed to have been made (i) At the time...) At the time such transfer takes effect between the transferor and the transferee, with respect to a...) At the time such transfer is perfected, if such transfer is perfected after the 30-day period...

Time Transfer from Combined Analysis of GPS and TWSTFT Data

DTIC Science & Technology

2008-12-01

40th Annual Precise Time and Time Interval (PTTI) Meeting 565 TIME TRANSFER FROM COMBINED ANALYSIS OF GPS AND TWSTFT DATA...bipm.org Abstract This paper presents the time transfer results obtained from the combination of GPS data and TWSTFT data. Two different methods...view, constrained by TWSTFT data. Using the Vondrak-Cepek algorithm, the second approach (named PPP+TW) combines the TWSTFT time transfer data with

Timed Transfer : An Evaluation of Its Structure, Performance and Cost

DOT National Transportation Integrated Search

1983-08-01

Timed transfer is a transit operating strategy in which vehicles from different routes are routed and scheduled to meet simultaneously at common stops to facilitate no-wait or minimum-wait passenger transfers. Timed transfers are being used primarily...

Coordinating Transit Transfers in Real Time

DOT National Transportation Integrated Search

2016-05-06

Transfers are a major source of travel time variability for transit passengers. Coordinating transfers between transit routes in real time can reduce passenger waiting times and travel time variability, but these benefits need to be contrasted with t...

Evaluation of the Time and Frequency Transfer Capabilities of a Network of GNSS Receivers Located in Timing Laboratories

DTIC Science & Technology

2009-11-01

metrology, different techniques are used for time and frequency transfer, basically TWSTFT (Two-Way Satellite Time and Frequency Transfer), GPS CV (Common...traditional GPS/GLONASS CV/AV receivers and TWSTFT equipment. Time and frequency transfer using GPS code and carrier-phase is an important...or mixing GPS geodetic results with other independent techniques, such as the TWSTFT . 41 st Annual Precise Time and Time Interval (PTTI

Relativistic theory for picosecond time transfer in the vicinity of Earth

NASA Technical Reports Server (NTRS)

Petit, G.; Wolf, P.

1994-01-01

The problem of light propagation is treated in a geocentric reference system with the goal of ensuring picosecond accuracy for time transfer techniques using electromagnetic signals in the vicinity of the Earth. We give an explicit formula for a one way time transfer, to be applied when the spatial coordinates of the time transfer stations are known in a geocentric reference system rotating with the Earth. This expression is extended, at the same accuracy level of one picosecond, to the special cases of two way and LASSO time transfers via geostationary satellites.

26 CFR 1.684-2 - Transfers.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 1, 2007, at a time when the fair market value of the property is 1100X, I transfers the property to... market value of 500X and an adjusted basis of 100X to FT. At the time of the transfer, FT has no U.S... time of the transfer by DT to FT. Example 2. Transfer by a foreign trust. On January 1, 2001, A...

26 CFR 1.684-2 - Transfers.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 1, 2007, at a time when the fair market value of the property is 1100X, I transfers the property to... market value of 500X and an adjusted basis of 100X to FT. At the time of the transfer, FT has no U.S... time of the transfer by DT to FT. Example 2. Transfer by a foreign trust. On January 1, 2001, A...

26 CFR 1.684-2 - Transfers.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 1, 2007, at a time when the fair market value of the property is 1100X, I transfers the property to... market value of 500X and an adjusted basis of 100X to FT. At the time of the transfer, FT has no U.S... time of the transfer by DT to FT. Example 2. Transfer by a foreign trust. On January 1, 2001, A...

Optimal transfers between libration-point orbits in the elliptic restricted three-body problem

NASA Astrophysics Data System (ADS)

Hiday, Lisa Ann

1992-09-01

A strategy is formulated to design optimal impulsive transfers between three-dimensional libration-point orbits in the vicinity of the interior L(1) libration point of the Sun-Earth/Moon barycenter system. Two methods of constructing nominal transfers, for which the fuel cost is to be minimized, are developed; both inferior and superior transfers between two halo orbits are considered. The necessary conditions for an optimal transfer trajectory are stated in terms of the primer vector. The adjoint equation relating reference and perturbed trajectories in this formulation of the elliptic restricted three-body problem is shown to be distinctly different from that obtained in the analysis of trajectories in the two-body problem. Criteria are established whereby the cost on a nominal transfer can be improved by the addition of an interior impulse or by the implementation of coastal arcs in the initial and final orbits. The necessary conditions for the local optimality of a time-fixed transfer trajectory possessing additional impulses are satisfied by requiring continuity of the Hamiltonian and the derivative of the primer vector at all interior impulses. The optimality of a time-free transfer containing coastal arcs is surmised by examination of the slopes at the endpoints of a plot of the magnitude of the primer vector over the duration of the transfer path. If the initial and final slopes of the primer magnitude are zero, the transfer trajectory is optimal; otherwise, the execution of coasts is warranted. The position and timing of each interior impulse applied to a time-fixed transfer as well as the direction and length of coastal periods implemented on a time-free transfer are specified by the unconstrained minimization of the appropriate variation in cost utilizing a multivariable search technique. Although optimal solutions in some instances are elusive, the time-fixed and time-free optimization algorithms prove to be very successful in diminishing costs on nominal transfer trajectories. The inclusion of coastal arcs on time-free superior and inferior transfers results in significant modification of the transfer time of flight caused by shifts in departure and arrival locations on the halo orbits.

Sources of Instabilities in Two-Way Satellite Time Transfer

DTIC Science & Technology

2005-08-01

Frequency Division 325 Broadway Boulder, CO USA Abstract -- Two-Way Satellite Time and Frequency Transfer ( TWSTFT ) has become an important...stability of TWSTFT a more complete understanding of the sources of instabilities is required. This paper analyzes several sources of instabilities...Frequency Transfer ( TWSTFT ) regularly delivers subnanosecond time transfer stability at 1 day as measured by the time deviation (TDEV) statistic

Comparison of LASSO and GPS time transfers

NASA Technical Reports Server (NTRS)

Lewandowski, W.; Petit, G.; Baumont, F.; Fridelance, P.; Gaignebet, J.; Grudler, P.; Veillet, C.; Wiant, J.; Klepczynski, W. J.

1994-01-01

The LASSO is a technique which should allow the comparison of remote atomic clocks with sub-nanosecond precision and accuracy. The first successful time transfer using LASSO has been carried out between the Observatoire de la Cote d'Azur in France and the McDonald Observatory in Texas, United States. This paper presents a preliminary comparison of LASSO time transfer with GPS common-view time transfer.

The Accuracy of Two-Way Satellite Time Transfer Calibrations

DTIC Science & Technology

2005-01-01

20392, USA Abstract Results from successive calibrations of Two-Way Satellite Time and Frequency Transfer ( TWSTFT ) operational equipment at...USNO and five remote stations using portable TWSTFT equipment are analyzed for internal and external errors, finding an average random error of ±0.35...most accurate means of operational long-distance time transfer are Two-Way Satellite Time and Frequency Transfer ( TWSTFT ) and carrier-phase GPS

European two-way satellite time transfer experiments using the INTELSAT (VA-F13) satellite at 307{degree}E

DOE Office of Scientific and Technical Information (OSTI.GOV)

Davis, J.A.; Pearce, P.R.; Kirchner, D.

1994-12-31

A Two Way Satellite Time and Frequency Transfer (TWSTFT) experiment performed between six European laboratories is reported. The characteristics of the time transfers undertaken between each pair of laboratory earth stations has been determined. Multiple time transfer and ranging experiments were performed to determine both systematic errors and delay instabilities in the TWSTFT system.

Continuous time transfer using GPS carrier phase.

PubMed

Dach, Rolf; Schildknecht, Thomas; Springer, Tim; Dudle, Gregor; Prost, Leon

2002-11-01

The Astronomical Institute of the University of Berne is hosting one of the Analysis Centers (AC) of the International GPS Service (IGS). A network of a few GPS stations in Europe and North America is routinely analyzed for time transfer purposes, using the carrier phase observations. This work is done in the framework of a joint project with the Swiss Federal Office of Metrology and Accreditation (METAS). The daily solutions are computed independently. The resulting time transfer series show jumps of up to 1 ns at the day boundaries. A method to concatenate the daily time transfer solutions to a continuous series was developed. A continuous time series is available for a time span of more than 4 mo. The results were compared with the time transfer results from other techniques such as two-way satellite time and frequency transfer. This concatenation improves the results obtained in a daily computing scheme because a continuous time series better reflects the characteristics of continuously working clocks.

Advances in Time and Frequency Transfer From Dual-Frequency GPS Pseudorange and Carrier-Phase Observations

DTIC Science & Technology

2008-12-01

collocated independent time transfer techniques such as Two-Way Satellite Time and Frequency Transfer ( TWSTFT ) [10,11]. The issue of pseudorange errors...transfer methods, e.g. TWSTFT . There is a side benefit that far exceeds just meeting the objective we have set. The new model explicitly reveals, on

26 CFR 25.2701-5 - Adjustments to mitigate double taxation.

Code of Federal Regulations, 2012 CFR

2012-04-01

... time of the initial transfer (or the remaining portion thereof). (b) Amount of reduction. Except as...) duplicated in the transfer tax base at the time of the transfer of the section 2701 interest (the duplicated... tax value of the section 2701 interest at the time of the subsequent transfer exceeds the value of...

26 CFR 25.2701-5 - Adjustments to mitigate double taxation.

Code of Federal Regulations, 2013 CFR

2013-04-01

... time of the initial transfer (or the remaining portion thereof). (b) Amount of reduction. Except as...) duplicated in the transfer tax base at the time of the transfer of the section 2701 interest (the duplicated... tax value of the section 2701 interest at the time of the subsequent transfer exceeds the value of...

The school bus routing and scheduling problem with transfers

PubMed Central

Doerner, Karl F.; Parragh, Sophie N.

2015-01-01

In this article, we study the school bus routing and scheduling problem with transfers arising in the field of nonperiodic public transportation systems. It deals with the transportation of pupils from home to their school in the morning taking the possibility that pupils may change buses into account. Allowing transfers has several consequences. On the one hand, it allows more flexibility in the bus network structure and can, therefore, help to reduce operating costs. On the other hand, transfers have an impact on the service level: the perceived service quality is lower due to the existence of transfers; however, at the same time, user ride times may be reduced and, thus, transfers may also have a positive impact on service quality. The main objective is the minimization of the total operating costs. We develop a heuristic solution framework to solve this problem and compare it with two solution concepts that do not consider transfers. The impact of transfers on the service level in terms of time loss (or user ride time) and the number of transfers is analyzed. Our results show that allowing transfers reduces total operating costs significantly while average and maximum user ride times are comparable to solutions without transfers. © 2015 Wiley Periodicals, Inc. NETWORKS, Vol. 65(2), 180–203 2015 PMID:28163329

Recent Results with Transatlantic GeTT Campaign

DTIC Science & Technology

1999-12-01

which are driven by H-masers. Frequent comparisons between GPS CP and TWSTFT throughout the campaign allow a comparison of the long-term stability of...the two entirely independent techniques. Small discrepancies between the time transfer by GPS CP and the time transfer by TWSTFT have been observed...density for the GeTT values in comparison to the other time-transfer methods: two-way satellite time and frequency transfer ( TWSTFT ) and Circular T

Sub-picosecond timing fluctuation suppression in laser-based atmospheric transfer of microwave signal using electronic phase compensation

NASA Astrophysics Data System (ADS)

Chen, Shijun; Sun, Fuyu; Bai, Qingsong; Chen, Dawei; Chen, Qiang; Hou, Dong

2017-10-01

We demonstrated a timing fluctuation suppression in outdoor laser-based atmospheric radio-frequency transfer over a 110 m one-way free-space link using an electronic phase compensation technique. Timing fluctuations and Allan Deviation are both measured to characterize the instability of transferred frequency incurred during the transfer process. With transferring a 1 GHz microwave signal over a timing fluctuation suppressed transmission link, the total root-mean-square (rms) timing fluctuation was measured to be 920 femtoseconds in 5000 s, with fractional frequency instability on the order of 1 × 10-12 at 1 s, and order of 2 × 10-16 at 1000 s. This atmospheric frequency transfer scheme with the timing fluctuation suppression technique can be used to fast build an atomic clock-based frequency free-space transmission link since its stability is superior to a commercial Cs and Rb clock.

Comparison of VLBI, TV and traveling clock techniques for time transfer

NASA Technical Reports Server (NTRS)

Spencer, J. H.; Waltman, E. B.; Johnston, K. J.; Santini, N. J.; Klepczynski, W. J.; Matsakis, D. N.; Angerhofer, P. E.; Kaplan, G. M.

1982-01-01

A three part experiment was conducted to develop and compare time transfer techniques. The experiment consisted of (1) a very long baseline interferometer (VLBI), (2) a high precision portable clock time transfer system between the two sites, and (3) a television time transfer. A comparison of the VLBI and traveling clock shows each technique can perform satisfactorily at the five nsec level. There was a systematic offset of 59 nsec between the two methods, which we attributed to a difference in epochs between VLBI formatter and station clock. The VLBI method had an internal random error of one nsec at the three sigma level for a two day period. Thus, the Mark II system performed well, and VLBI shows promise of being an accurate method of time transfer. The TV system, which had technical problems during the experiment, transferred time with a random error of about 50 nsec.

Automatic detection of health changes using statistical process control techniques on measured transfer times of elderly.

PubMed

Baldewijns, Greet; Luca, Stijn; Nagels, William; Vanrumste, Bart; Croonenborghs, Tom

2015-01-01

It has been shown that gait speed and transfer times are good measures of functional ability in elderly. However, data currently acquired by systems that measure either gait speed or transfer times in the homes of elderly people require manual reviewing by healthcare workers. This reviewing process is time-consuming. To alleviate this burden, this paper proposes the use of statistical process control methods to automatically detect both positive and negative changes in transfer times. Three SPC techniques: tabular CUSUM, standardized CUSUM and EWMA, known for their ability to detect small shifts in the data, are evaluated on simulated transfer times. This analysis shows that EWMA is the best-suited method with a detection accuracy of 82% and an average detection time of 9.64 days.

Note: electronic circuit for two-way time transfer via a single coaxial cable with picosecond accuracy and precision.

PubMed

Prochazka, Ivan; Kodet, Jan; Panek, Petr

2012-11-01

We have designed, constructed, and tested the overall performance of the electronic circuit for the two-way time transfer between two timing devices over modest distances with sub-picosecond precision and a systematic error of a few picoseconds. The concept of the electronic circuit enables to carry out time tagging of pulses of interest in parallel to the comparison of the time scales of these timing devices. The key timing parameters of the circuit are: temperature change of the delay is below 100 fs/K, timing stability time deviation better than 8 fs for averaging time from minutes to hours, sub-picosecond time transfer precision, and a few picoseconds time transfer accuracy.

34 CFR 682.421 - Funds transferred from the Federal Fund to the Operating Fund by a guaranty agency.

Code of Federal Regulations, 2011 CFR

2011-07-01

... receiving the Secretary's approval, the agency may transfer the requested funds at any time within 6 months... request within 30 days after receiving it, the agency may transfer the requested funds at any time within... deposited into the agency's Operating Fund. The amount transferred and outstanding at any time during the...

26 CFR 1.615-7 - Effect of transfer of mineral property.

Code of Federal Regulations, 2010 CFR

2010-04-01

... made an election under either section 615(e) or 617(a) at the time of the transfer, no election made by... either section. (b) Transfer after election by transferor. If a transferee who at the time of the... transferor had in effect at the time of the transfer an election under section 615(e), an amount equal to the...

26 CFR 1.615-7 - Effect of transfer of mineral property.

Code of Federal Regulations, 2014 CFR

2014-04-01

... made an election under either section 615(e) or 617(a) at the time of the transfer, no election made by... either section. (b) Transfer after election by transferor. If a transferee who at the time of the... transferor had in effect at the time of the transfer an election under section 615(e), an amount equal to the...

26 CFR 1.615-7 - Effect of transfer of mineral property.

Code of Federal Regulations, 2011 CFR

2011-04-01

... made an election under either section 615(e) or 617(a) at the time of the transfer, no election made by... either section. (b) Transfer after election by transferor. If a transferee who at the time of the... transferor had in effect at the time of the transfer an election under section 615(e), an amount equal to the...

34 CFR 682.421 - Funds transferred from the Federal Fund to the Operating Fund by a guaranty agency.

Code of Federal Regulations, 2013 CFR

2013-07-01

... receiving the Secretary's approval, the agency may transfer the requested funds at any time within 6 months... request within 30 days after receiving it, the agency may transfer the requested funds at any time within... deposited into the agency's Operating Fund. The amount transferred and outstanding at any time during the...

26 CFR 1.615-7 - Effect of transfer of mineral property.

Code of Federal Regulations, 2012 CFR

2012-04-01

... made an election under either section 615(e) or 617(a) at the time of the transfer, no election made by... either section. (b) Transfer after election by transferor. If a transferee who at the time of the... transferor had in effect at the time of the transfer an election under section 615(e), an amount equal to the...

28 CFR 570.35 - Transfer furlough eligibility requirements.

Code of Federal Regulations, 2012 CFR

2012-07-01

... facility based on the inmate's security designation and custody classification at the time of transfer. (d... security designation and custody classification at the time of transfer. ... 28 Judicial Administration 2 2012-07-01 2012-07-01 false Transfer furlough eligibility...

28 CFR 570.35 - Transfer furlough eligibility requirements.

Code of Federal Regulations, 2011 CFR

2011-07-01

... facility based on the inmate's security designation and custody classification at the time of transfer. (d... security designation and custody classification at the time of transfer. ... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Transfer furlough eligibility...

28 CFR 570.35 - Transfer furlough eligibility requirements.

Code of Federal Regulations, 2014 CFR

2014-07-01

... facility based on the inmate's security designation and custody classification at the time of transfer. (d... security designation and custody classification at the time of transfer. ... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Transfer furlough eligibility...

28 CFR 570.35 - Transfer furlough eligibility requirements.

Code of Federal Regulations, 2013 CFR

2013-07-01

... facility based on the inmate's security designation and custody classification at the time of transfer. (d... security designation and custody classification at the time of transfer. ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Transfer furlough eligibility...

12 CFR 1228.1 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-01-01

... continuing basis each time a property is transferred (except for transfers specifically excepted) for a period of time or indefinitely. A private transfer fee does not include fees, charges, payments, or other... SECURITY INTERESTS IN, MORTGAGES ON PROPERTIES ENCUMBERED BY CERTAIN PRIVATE TRANSFER FEE COVENANTS AND...

Stable fiber-optic time transfer by active radio frequency phase locking.

PubMed

Yin, Feifei; Wu, Zhongle; Dai, Yitang; Ren, Tianpeng; Xu, Kun; Lin, Jintong; Tang, Geshi

2014-05-15

In this Letter we demonstrate a fiber link capable of stable time signal transfer utilizing our active long-distance radio frequency (RF) stabilization technology. Taking advantage of the chromatic dispersion in optical fiber, our scheme compensates dynamically the link delay variation by tuning the optical carrier wavelength to phase lock a round-trip RF reference. Since the time signal and the RF reference are carried by the same optical carrier, a highly stable time transfer is achieved at the same time. Experimentally, we demonstrate a stability of the time signal transfer over 50-km fiber with a time deviation of 40 ps at 1-s average and 2.3 ps at 1000-s average. The performance of the RF reference delivery is also tested, with an Allan deviation of 2×10(-15) at 1000-s average. According to our proposal, a simultaneous stable time and frequency transfer is expected.

26 CFR 1.1015-4 - Transfers in part a gift and in part a sale.

Code of Federal Regulations, 2014 CFR

2014-04-01

... property, or (ii) The transferor's adjusted basis for the property at the time of the transfer, and (2) The... greater than the fair market value of the property at the time of such transfer. For determination of gain... examples: Example 1. If A transfers property to his son for $30,000, and such property at the time of the...

Impact of atmospheric anisoplanaticity on earth-to-satellite time transfer over laser communication links

NASA Astrophysics Data System (ADS)

Belmonte, Aniceto; Taylor, Michael T.; Hollberg, Leo; Kahn, Joseph M.

2017-02-01

The need for an accurate time and position reference on orbiting platforms motivates the study of time transfer over satellite optical communication links. The transfer of precise optical clock signals to space would benefit many fields in fundamental science and applications. However, the precise role of atmospheric turbulence during the optical time transfer process is not well-known and documented. In free-space optical links, atmospheric turbulence represents a major impairment, since it causes degradation of the spatial and temporal coherence of the optical signals. We present possible link scenarios in which the atmospheric channel behavior for time transfer between ground and space can be investigated, and have identified the major challenges to be overcome. We found in our analysis that, despite the limited reciprocity in uplink and downlink propagation, partial two-way cancellation of atmospheric effects still occurs. We established that laser communication links make possible high-quality time transfer in most practical propagation scenarios and over a single satellite visibility period. Our results demonstrate that sharing of optical communication resources for optical time transfer and range determination is an effective and relevant scheme for space clock developments and enabling for future space missions.

[Influence of three-level collaboration network of pediatric burns treatment in Anhui province on treatment effects of burn children].

PubMed

Xia, Z G; Zhou, X L; Kong, W C; Li, X Z; Song, J H; Fang, L S; Hu, D L; Cai, C; Tang, Y Z; Yu, Y X; Wang, C H; Xu, Q L

2018-03-20

Objective: To explore the influence of three-level collaboration network of pediatric burns in Anhui province on treatment effects of burn children. Methods: The data of medical records of pediatric burn children transferred from Lu'an People's Hospital and Fuyang People's Hospital to the First Affiliated Hospital of Anhui Medical University from January 2014 to December 2015 and January 2016 to September 2017 (before and after establishing three-level collaboration network of pediatric burns treatment) were analyzed: percentage of transferred burn children to hospitalized burn children in corresponding period, gender, age, burn degree, treatment method, treatment result, occurrence and treatment result of shock, and operative and non-operative treatment time and cost. Rehabilitation result of burn children transferred back to local hospitals in 2016 and 2017. Data were processed with t test, chi-square test, Mann-Whitney U test, and Fisher's exact test. Results: (1) Percentage of burn children transferred from January 2014 to December 2015 was 34.3% (291/848) of the total number of hospitalized burn children in the same period of time, which was close to 30.4% (210/691) of burn children transferred from January 2016 to September 2017 ( χ (2)=2.672, P >0.05). (2) Gender, age, burn degree, and treatment method of burn children transferred from the two periods of time were close ( χ (2)=3.382, Z =-1.917, -1.911, χ (2)=3.133, P >0.05). (3) Cure rates of children with mild, moderate, and severe burns transferred from January 2016 to September 2017 were significantly higher than those of burn children transferred from January 2014 to December 2015 ( χ (2)=11.777, 6.948, 4.310, P <0.05). Cure rates of children with extremely severe burns transferred from the two periods of time were close ( χ (2)=1.181, P >0.05). (4) Children with mild and moderate burns transferred from the two periods of time were with no shock. The incidence of shock of children with severe burns transferred from January 2014 to December 2015 was 6.0% (4/67), and 3 children among them were cured. The incidence of shock of children with severe burns transferred from January 2016 to September 2017 was 3.9% (2/51), and both children were cured. The incidences and cures of shock of children with severe burns transferred from the two periods of time were close ( χ (2)=0.006, P >0.05). Incidence of shock of children with extremely severe burns transferred from January 2014 to December 2015 was 57.1% (32/56), significantly higher than that of burn children transferred from January 2016 to September 2017 [34.5% (10/29), χ (2)=3.925, P <0.05]. Shock of 25 children with extremely severe burns transferred from January 2014 to December 2015 were cured, and shock of 9 children with extremely severe burns transferred from January 2016 to September 2017 were cured. The cures of shock of children with extremely severe burns transferred from the two periods of time were close ( χ (2)=0.139, P >0.05). (5) Time of operative treatment of children with moderate, severe, and extremely severe burns transferred from January 2014 to December 2015 was obviously longer than that of burn children transferred from January 2016 to September 2017 ( t =2.335, 2.065, 2.310, P <0.05). Time of operative treatment of children with mild burns transferred from the two periods of time was close ( Z =-0.417, P >0.05). Costs of operative treatment of children with moderate and severe burns transferred from January 2014 to December 2015 were significantly more than those of burn children transferred from January 2016 to September 2017 ( Z =-3.324, t =2.167, P <0.05). Costs of operative treatment of children with mild and extremely severe burns transferred from the two periods of time were close ( t =0.627, 0.808, P >0.05). (6)Time of non-operative treatment of children with mild, moderate, and severe burns transferred from January 2014 to December 2015 was obviously longer than that of burn children transferred from January 2016 to September 2017 ( t =2.335, Z =-2.095, t =2.152, P <0.05). Time of non-operative treatment of children with extremely severe burns transferred from the two periods of time was close ( t =0.450, P >0.05). Costs of non-operative treatment of children with moderate and severe burns transferred from January 2014 to December 2015 were obviously higher than those of burn children transferred from January 2016 to September 2017 ( Z =-2.164, t =2.040, P <0.05). Costs of non-operative treatment of children with mild and extremely severe burns transferred from the two periods of time were close ( t =0.146, 1.235, P >0.05). (7) Sixty-seven burn children transferred from January 2016 to September 2017 were transferred back to local hospitals for rehabilitation under the guidance of experts of the First Affiliated Hospital of Anhui Medical University, with 25 patients in 2016 and 42 patients in 2017. Effective rehabilitation rates of burn children transferred back to local hospitals for rehabilitation in 2016 and 2017 were both 100%. Conclusions: The three-level collaboration network of pediatric burns treatment in Anhui province can effectively increase cure rate of children with mild, moderate, and severe burns, reduce incidence of shock of children with extremely severe burns, shorten time of operative treatment of burn children with moderate, severe, and extremely severe burns, and time of non-operative treatment of children with mild, moderate, and severe burns, reduce treatment costs of children with moderate and severe burns, and improve rehabilitation effectiveness of children transferred from Lu'an People's Hospital and Fuyang People's Hospital to the the First Affiliated Hospital of Anhui Medical University.

12 CFR 1228.1 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-01-01

... of title to real estate, and payable on a continuing basis each time a property is transferred (except for transfers specifically excepted) for a period of time or indefinitely. A private transfer fee... SECURITY INTERESTS IN, MORTGAGES ON PROPERTIES ENCUMBERED BY CERTAIN PRIVATE TRANSFER FEE COVENANTS AND...

Improving TWSTFT short-term stability by network time transfer.

PubMed

Tseng, Wen-Hung; Lin, Shinn-Yan; Feng, Kai-Ming; Fujieda, M; Maeno, H

2010-01-01

Two-way satellite time and frequency transfer (TWSTFT) is one of the major techniques to compare the atomic time scales between timing laboratories. As more and more TWSTFT measurements have been performed, the large number of point-to-point 2-way time transfer links has grown to be a complex network. For future improvement of the TWSTFT performance, it is important to reduce measurement noise of the TWSTFT results. One method is using TWSTFT network time transfer. The Asia-Pacific network is an exceptional case of simultaneous TWSTFT measurements. Some indirect links through relay stations show better shortterm stabilities than the direct link because the measurement noise may be neutralized in a simultaneous measurement network. In this paper, the authors propose a feasible method to improve the short-term stability by combining the direct and indirect links in the network. Through the comparisons of time deviation (TDEV), the results of network time transfer exhibit clear improved short-term stabilities. For the links used to compare 2 hydrogen masers, the average gain of TDEV at averaging times of 1 h is 22%. As TWSTFT short-term stability can be improved by network time transfer, the network may allow a larger number of simultaneously transmitting stations.

Long-Term Instability of GPS-Based Time Transfer and Proposals for Improvements

DTIC Science & Technology

2011-01-01

receiver, or use of a completely independent technique such as Two-Way Satellite Time and Frequency Transfer ( TWSTFT ), helps to identify which receiver...is generated using not only the PTB’s Two-Way Satellite Time and Frequency Transfer ( TWSTFT or TW) links, but also links based on other PTB GNSS...including the PTB by X WX [1,2]; delay variations in other PTB time transfer systems would have an additive effect whether they were TWSTFT or GNSS

Evaluation of ceiling lifts: transfer time, patient comfort and staff perceptions.

PubMed

Alamgir, Hasanat; Li, Olivia Wei; Yu, Shicheng; Gorman, Erin; Fast, Catherine; Kidd, Catherine

2009-09-01

Mechanical lifting devices have been developed to reduce healthcare worker injuries related to patient handling. The purpose of this study was to evaluate ceiling lifts in comparison to floor lifts based on transfer time, patient comfort and staff perceptions in three long-term care facilities with varying ceiling lift coverage. The time required to transfer or reposition patients along with patient comfort levels were recorded for 119 transfers. Transfers performed with ceiling lifts required on average less time (bed to chair transfers: 156.9 seconds for ceiling lift, 273.6 seconds for floor lift) and were found to be more comfortable for patients. In the three facilities, 143 healthcare workers were surveyed on their perceptions of patient handling tasks and equipment. For both transferring and repositioning tasks, staff preferred to use ceiling lifts and also found them to be less physically demanding. Further investigation is needed on repositioning tasks to ensure safe practice.

Quantum state transfer through time reversal of an optical channel

NASA Astrophysics Data System (ADS)

Hush, M. R.; Bentley, C. D. B.; Ahlefeldt, R. L.; James, M. R.; Sellars, M. J.; Ugrinovskii, V.

2016-12-01

Rare-earth ions have exceptionally long coherence times, making them an excellent candidate for quantum information processing. A key part of this processing is quantum state transfer. We show that perfect state transfer can be achieved by time reversing the intermediate quantum channel, and suggest using a gradient echo memory (GEM) to perform this time reversal. We propose an experiment with rare-earth ions to verify these predictions, where an emitter and receiver crystal are connected with an optical channel passed through a GEM. We investigate the effect experimental imperfections and collective dynamics have on the state transfer process. We demonstrate that super-radiant effects can enhance coupling into the optical channel and improve the transfer fidelity. We lastly discuss how our results apply to state transfer of entangled states.

Nanosecond time transfer via shuttle laser ranging experiment

NASA Technical Reports Server (NTRS)

Reinhardt, V. S.; Premo, D. A.; Fitzmaurice, M. W.; Wardrip, S. C.; Cervenka, P. O.

1978-01-01

A method is described to use a proposed shuttle laser ranging experiment to transfer time with nanosecond precision. All that need be added to the original experiment are low cost ground stations and an atomic clock on the shuttle. It is shown that global time transfer can be accomplished with 1 ns precision and transfer up to distances of 2000 km can be accomplished with better than 100 ps precision.

26 CFR 1.684-1 - Recognition of gain on transfers to certain foreign trusts and estates.

Code of Federal Regulations, 2010 CFR

2010-04-01

... recognize gain at the time of the transfer equal to the excess of the fair market value of the property... portion of FT. Under paragraph (a)(1) of this section, A recognizes gain at the time of the transfer equal... of 1000X, and property R, with a fair market value of 2000X, to FT. At the time of the transfer, A's...

Long-term comparisons between two-way satellite and geodetic time transfer systems.

PubMed

Plumb, John F; Larson, Kristine M

2005-11-01

Global Positioning System (GPS) observations recorded in the United States and Europe were used to evaluate time transfer capabilities of GETT (geodetic time transfer). Timing estimates were compared with two-way satellite time and frequency transfer (TWSTFT) systems. A comparison of calibrated links at the U.S. Naval Observatory, Washington, D.C., and Colorado Springs, CO, yielded agreement of 2.17 ns over 6 months with a standard deviation of 0.73 ns. An uncalibrated link between the National Institute of Standards and Technology (NIST) and Physikalisch-Technische Bundesanstalt, Braunschweig, Germany, has a standard deviation of 0.79 ns over the same time period.

Improvement of the Asia-Pacific TWSTFT network solutions by using DPN results.

PubMed

Lin, Huang-Tien; Huang, Yi-Jiun; Liao, Chia-Shu; Chu, Fang-Dar; Tseng, Wen-Hung

2012-03-01

Two major time and frequency transfer techniques, two-way satellite time and frequency transfer (TWSTFT) and global navigation satellite systems (GNSS: GPS, GALILEO, GLONASS, etc.), are used for the generation of Coordinated Universal Time (UTC)/International Atomic Time (TAI). These time and frequency transfer links comprise a worldwide network and the utilization of the highly redundant time and frequency data is an important topic. Two methods, either TW-only network (i.e., TWSTFT) or single-link combination of TW and Global Positioning System (GPS), have been developed for combining the redundant data from different techniques. In our previous study, we have proposed a feasible method, utilizing full time-transfer network data, to improve the results of TWSTFT network. The National Institute of Information and Communications Technology (NICT) has recently developed a software-based two-way time-transfer modem using a dual pseudo-random noise (DPN) signal. The first international DPN TWSTFT experiment, using these modems, was performed between NICT (Japan) and Telecommunication Laboratories (TL; Taiwan)and its ability to improve the time transfer precision was demonstrated. In comparison with the conventional NICT–TLTWSTFT link, the DPN time transfer results have higher precision and lower diurnal effects. The estimation also shows that DPN is comparable to GPS precise point positioning (PPP).Because the DPN results show better performance than the conventional TWSTFT results, we would adopt the DPN data for the NICT–TL link and solve the TW+DPN network solutions by using our proposed method. The concept of this application is similar to the so-called multi-technique-network time/frequency transfer. The encouraging results confirm that the TWSTFT network performance can benefit from DPN data by improving short-term stabilities and reducing diurnal effects.The results of TW+PPP network solutions are also illustrated.

Are Model Transferability And Complexity Antithetical? Insights From Validation of a Variable-Complexity Empirical Snow Model in Space and Time

NASA Astrophysics Data System (ADS)

Lute, A. C.; Luce, Charles H.

2017-11-01

The related challenges of predictions in ungauged basins and predictions in ungauged climates point to the need to develop environmental models that are transferable across both space and time. Hydrologic modeling has historically focused on modelling one or only a few basins using highly parameterized conceptual or physically based models. However, model parameters and structures have been shown to change significantly when calibrated to new basins or time periods, suggesting that model complexity and model transferability may be antithetical. Empirical space-for-time models provide a framework within which to assess model transferability and any tradeoff with model complexity. Using 497 SNOTEL sites in the western U.S., we develop space-for-time models of April 1 SWE and Snow Residence Time based on mean winter temperature and cumulative winter precipitation. The transferability of the models to new conditions (in both space and time) is assessed using non-random cross-validation tests with consideration of the influence of model complexity on transferability. As others have noted, the algorithmic empirical models transfer best when minimal extrapolation in input variables is required. Temporal split-sample validations use pseudoreplicated samples, resulting in the selection of overly complex models, which has implications for the design of hydrologic model validation tests. Finally, we show that low to moderate complexity models transfer most successfully to new conditions in space and time, providing empirical confirmation of the parsimony principal.

Time and Frequency Activities at SP in Sweden

DTIC Science & Technology

2009-11-01

in Sweden and is traceable to UTC via BIPM and time transfer using the GPS and TWSTFT techniques. This paper describes the generation and...is interfaced using IP networking. Long-haul measurement time transfer instrumentation at SP consists of: • a TimeTech Satre TWSTFT ground...time transfer equipment. The clock room contains also sensible measurement equipment such as a femtosecond phase comparator, the TWSTFT modem, the

38 CFR 21.5743 - Transfer of entitlement.

Code of Federal Regulations, 2012 CFR

2012-07-01

...) Has thereafter reenlisted. (4) The servicemember or veteran may revoke at any time a transfer... servicemember may transfer entitlement to only one person at a time. (Authority: 10 U.S.C. 2147) (d) Effect of... 38 Pensions, Bonuses, and Veterans' Relief 2 2012-07-01 2012-07-01 false Transfer of entitlement...

19 CFR 146.61 - Constructive transfer to Customs territory.

Code of Federal Regulations, 2012 CFR

2012-04-01

... constructively transferred to Customs territory at that time, even though the merchandise remains physically in... time to be constructively transferred back into the zone in its previous zone status. ... 19 Customs Duties 2 2012-04-01 2012-04-01 false Constructive transfer to Customs territory. 146.61...

19 CFR 146.61 - Constructive transfer to Customs territory.

Code of Federal Regulations, 2014 CFR

2014-04-01

... constructively transferred to Customs territory at that time, even though the merchandise remains physically in... time to be constructively transferred back into the zone in its previous zone status. ... 19 Customs Duties 2 2014-04-01 2014-04-01 false Constructive transfer to Customs territory. 146.61...

19 CFR 146.61 - Constructive transfer to Customs territory.

Code of Federal Regulations, 2013 CFR

2013-04-01

... constructively transferred to Customs territory at that time, even though the merchandise remains physically in... time to be constructively transferred back into the zone in its previous zone status. ... 19 Customs Duties 2 2013-04-01 2013-04-01 false Constructive transfer to Customs territory. 146.61...

38 CFR 21.5743 - Transfer of entitlement.

Code of Federal Regulations, 2010 CFR

2010-07-01

...) Has thereafter reenlisted. (4) The servicemember or veteran may revoke at any time a transfer... servicemember may transfer entitlement to only one person at a time. (Authority: 10 U.S.C. 2147) (d) Effect of... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Transfer of entitlement...

19 CFR 146.61 - Constructive transfer to Customs territory.

Code of Federal Regulations, 2011 CFR

2011-04-01

... constructively transferred to Customs territory at that time, even though the merchandise remains physically in... time to be constructively transferred back into the zone in its previous zone status. ... 19 Customs Duties 2 2011-04-01 2011-04-01 false Constructive transfer to Customs territory. 146.61...

38 CFR 21.5743 - Transfer of entitlement.

Code of Federal Regulations, 2013 CFR

2013-07-01

...) Has thereafter reenlisted. (4) The servicemember or veteran may revoke at any time a transfer... servicemember may transfer entitlement to only one person at a time. (Authority: 10 U.S.C. 2147) (d) Effect of... 38 Pensions, Bonuses, and Veterans' Relief 2 2013-07-01 2013-07-01 false Transfer of entitlement...

19 CFR 146.61 - Constructive transfer to Customs territory.

Code of Federal Regulations, 2010 CFR

2010-04-01

... constructively transferred to Customs territory at that time, even though the merchandise remains physically in... time to be constructively transferred back into the zone in its previous zone status. ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Constructive transfer to Customs territory. 146.61...

38 CFR 21.5743 - Transfer of entitlement.

Code of Federal Regulations, 2014 CFR

2014-07-01

...) Has thereafter reenlisted. (4) The servicemember or veteran may revoke at any time a transfer... servicemember may transfer entitlement to only one person at a time. (Authority: 10 U.S.C. 2147) (d) Effect of... 38 Pensions, Bonuses, and Veterans' Relief 2 2014-07-01 2014-07-01 false Transfer of entitlement...

38 CFR 21.5743 - Transfer of entitlement.

Code of Federal Regulations, 2011 CFR

2011-07-01

...) Has thereafter reenlisted. (4) The servicemember or veteran may revoke at any time a transfer... servicemember may transfer entitlement to only one person at a time. (Authority: 10 U.S.C. 2147) (d) Effect of... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Transfer of entitlement...

Transfer effects of manipulating temporal constraints on learning a two-choice reaction time task with low stimulus-response compatibility.

PubMed

Chen, David D; Pei, Laura; Chan, John S Y; Yan, Jin H

2012-10-01

Recent research using deliberate amplification of spatial errors to increase motor learning leads to the question of whether amplifying temporal errors may also facilitate learning. We investigated transfer effects caused by manipulating temporal constraints on learning a two-choice reaction time (CRT) task with varying degrees of stimulus-response compatibility. Thirty-four participants were randomly assigned to one of the three groups and completed 120 trials during acquisition. For every fourth trial, one group was instructed to decrease CRT by 50 msec. relative to the previous trial and a second group was instructed to increase CRT by 50 msec. The third group (the control) was told not to change their responses. After a 5-min. break, participants completed a 40-trial no-feedback transfer test. A 40-trial delayed transfer test was administered 24 hours later. During acquisition, the Decreased Reaction Time group responded faster than the two other groups, but this group also made more errors than the other two groups. In the 5-min. delayed test (immediate transfer), the Decreased Reaction Time group had faster reaction times than the other two groups, while for the 24-hr. delayed test (delayed transfer), both the Decreased Reaction Time group and Increased Reaction Time group had significantly faster reaction times than the control. For delayed transfer, both Decreased and Increased Reaction Time groups reacted significantly faster than the control group. Analyses of error scores in the transfer tests indicated revealed no significant group differences. Results were discussed with regard to the notion of practice variability and goal-setting benefits.

Comparison of GLONASS and GPS Time Transfers Between Two West European Time Laboratories and VNIIFTRI

DTIC Science & Technology

1991-12-01

COMPARISON OF GLONASS AND GPS TIME TRANSFERS BETWEEN TWO WEST EUROPEAN TIME LABORATORIES AND VNIIFTRI P. Daly Department of Electronic and...Radiotechnical Measurements - VNIIFTRI Mendeleevo, Moscow region, 141570, USSR and W. Lewandowski, G. Petit, C. Thomas Bureau International des Poids et...00-1991 to 00-00-1991 4. TITLE AND SUBTITLE Comparison of GLONASS and GPS Time Transfers Between Two West European Time Laboratories and VNIIFTRI

TWSTFT Data Treatment for UTC Time Transfer

DTIC Science & Technology

2009-11-01

41 st Annual Precise Time and Time Interval (PTTI) Meeting 409 TWSTFT DATA TREATMENT FOR UTC TIME TRANSFER Z. Jiang, W...Abstract TWSTFT (TW) is the primary technique of time and frequency transfers used at BIPM for the UTC/TAI generations. At present, some 19...number. 1. REPORT DATE NOV 2009 2. REPORT TYPE 3. DATES COVERED 00-00-2009 to 00-00-2009 4. TITLE AND SUBTITLE TWSTFT Data Treatment for UTC Time

Long-Term Stability of Remote Clock Comparisons with IGS Clock Products

DTIC Science & Technology

2007-11-01

in-view (AV) time and frequency transfer and the two-way satellite time and frequency transfer ( TWSTFT ) techniques are used in the daily operations of...multichannel CV and AV can reach subnanosecond at 1 day as measured by the time deviation (TDEV). TWSTFT uses communication satellites for...simultaneously exchanging timing signals among the pairs of timing laboratories [4]. TWSTFT regularly delivers time transfer stability at a few hundreds of

results obtained by the application of two different methods for the calculation of optimal coplanar orbital maneuvers with time limit

NASA Astrophysics Data System (ADS)

Rocco, Emr; Prado, Afbap; Souza, Mlos

In this work, the problem of bi-impulsive orbital transfers between coplanar elliptical orbits with minimum fuel consumption but with a time limit for this transfer is studied. As a first method, the equations presented by Lawden (1993) were used. Those equations furnishes the optimal transfer orbit with fixed time for this transfer, between two elliptical coplanar orbits considering fixed terminal points. The method was adapted to cases with free terminal points and those equations was solved to develop a software for orbital maneuvers. As a second method, the equations presented by Eckel and Vinh (1984) were used, those equations provide the transfer orbit between non-coplanar elliptical orbits with minimum fuel and fixed time transfer, or minimum time transfer for a prescribed fuel consumption, considering free terminal points. But in this work only the problem with fixed time transfer was considered, the case of minimum time for a prescribed fuel consumption was already studied in Rocco et al. (2000). Then, the method was modified to consider cases of coplanar orbital transfer, and develop a software for orbital maneuvers. Therefore, two software that solve the same problem using different methods were developed. The first method, presented by Lawden, uses the primer vector theory. The second method, presented by Eckel and Vinh, uses the ordinary theory of maxima and minima. So, to test the methods we choose the same terminal orbits and the same time as input. We could verify that we didn't obtain exactly the same result. In this work, that is an extension of Rocco et al. (2002), these differences in the results are explored with objective of determining the reason of the occurrence of these differences and which modifications should be done to eliminate them.

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2012-01-01

Satellite Time Transfer (TWSTT), also referred to as Two-Way Satellite Time and Frequency Transfer ( TWSTFT ) The most accurate means of operational long...satellite broadcasts, and the BIPM uses that reported by the Observatory of Paris (OP), transferred to the BIPM via TWSTFT . This is compared to...Frequency Transfer ( TWSTFT ),” Review of Radio Science (Oxford Science Publications), pp. 27-44. [25] L. A. Breakiron, A. L. Smith, B. C. Fonville

Optical determination of charge transfer times from indoline dyes to ZnO in solid state dye-sensitized solar cells

NASA Astrophysics Data System (ADS)

Meyenburg, I.; Hofeditz, N.; Ruess, R.; Rudolph, M.; Schlettwein, D.; Heimbrodt, W.

2018-05-01

We studied the electron transfer at the interface of organic-inorganic hybrids consisting of indoline derivatives (D149 and D131) on ZnO substrates using a new optical method. We revealed the electron transfer times from the excited dye, e.g. the excitons formed in the dye aggregates to the ZnO substrate by analyzing the photoluminescence transients of the excitons after femtosecond excitation and applying kinetic model calculations. We reveal the changes of the electron transfer times by applying electrical bias. Pushing the Fermi energy of the ZnO substrate towards the excited dye level the transfer time gets longer and eventually the electron transfer is suppressed. The level alignment between the excited dye state and the ZnO Fermi-level is estimated. The excited state of D131 is about 100 meV higher than the respective state of D149 compared to the ZnO conduction band. This leads to shorter electron transfer times and eventually to higher quantum efficiencies of the solar cells.

12 CFR 205.3 - Coverage.

Code of Federal Regulations, 2014 CFR

2014-01-01

... to initiate a one-time electronic fund transfer from a consumer's account. The consumer must...-time electronic fund transfer (in providing a check to a merchant or other payee for the MICR encoding... information for the transfer shall also provide a notice to the consumer at the same time it provides the...

12 CFR 205.3 - Coverage.

Code of Federal Regulations, 2011 CFR

2011-01-01

... to initiate a one-time electronic fund transfer from a consumer's account. The consumer must...-time electronic fund transfer (in providing a check to a merchant or other payee for the MICR encoding... information for the transfer shall also provide a notice to the consumer at the same time it provides the...

12 CFR 205.3 - Coverage.

Code of Federal Regulations, 2013 CFR

2013-01-01

... to initiate a one-time electronic fund transfer from a consumer's account. The consumer must...-time electronic fund transfer (in providing a check to a merchant or other payee for the MICR encoding... information for the transfer shall also provide a notice to the consumer at the same time it provides the...

WHO TAKES CARE OF WHOM IN THE U.S.? EVIDENCE FROM MATRICES OF TIME TRANSFERS BY AGE AND SEX

PubMed Central

Dukhovnov, Denys; Zagheni, Emilio

2015-01-01

Non-monetary intergenerational transfers of time, such as informal care time transfers, represent a largely unknown, yet pivotal component of the support system in a country. In this article, we offer estimates of time transfers, by age and sex, related to informal childcare and adult care in the United States. We developed methods to extract both intra-household and inter-household time transfers from the American Time Use Survey (2011–2013) and the recently-added Eldercare Roster. We then summarized the results in matrices of time flows by age and sex for the general U.S. population, as well as for the so-called “sandwich generation.” We observed that most time transfers flow downwards from parents to young children. Grandmothers spend more time with newborn grandchildren than grandfathers, who, on the other hand, spend more time with slightly older grandchildren. The time produced by the sandwich generation is directed towards a more diverse population spectrum, including substantial intra-generational transfers to spouses. Estimates of time produced and consumed by the population with various demographic characteristics establish a foundation for extrapolating the degree to which the demand for care services will be met in the years to come. Extrapolation based on our findings reveals a steady rise in demand, relative to supply, of informal care lasting decades into the future. This projection indicates that, to maintain current levels of care, our society will have to either rely more heavily on the market or on an increased effort of caregivers. PMID:26508807

Two-Way Satellite Time and Frequency Transfer (TWSTFT) Calibration Constancy From Closure Sums

DTIC Science & Technology

2008-12-01

40th Annual Precise Time and Time Interval (PTTI) Meeting 587 TWO-WAY SATELLITE TIME AND FREQUENCY TRANSFER ( TWSTFT ) CALIBRATION...Paris, France Abstract Two-way Satellite Time and Frequency Transfer ( TWSTFT ) is considered to be the most accurate means of long-distance...explanations for small, but non-zero, biases observed in the closure sums of uncalibrated data are presented. I. INTRODUCTION TWSTFT [1] has

26 CFR 5f.103-1 - Obligations issued after December 31, 1982, required to be in registered form.

Code of Federal Regulations, 2011 CFR

2011-04-01

... particular time if it can be transferred at that time or at any time until its maturity by any means not... period beginning with a later time and ending with the maturity of the obligation, can be transferred... obligation on January 4, 1983 to Bank M provided that (i) Bank M will not at any time transfer any interest...

26 CFR 5f.103-1 - Obligations issued after December 31, 1982, required to be in registered form.

Code of Federal Regulations, 2012 CFR

2012-04-01

... particular time if it can be transferred at that time or at any time until its maturity by any means not... period beginning with a later time and ending with the maturity of the obligation, can be transferred... obligation on January 4, 1983 to Bank M provided that (i) Bank M will not at any time transfer any interest...

26 CFR 5f.103-1 - Obligations issued after December 31, 1982, required to be in registered form.

Code of Federal Regulations, 2013 CFR

2013-04-01

... particular time if it can be transferred at that time or at any time until its maturity by any means not... period beginning with a later time and ending with the maturity of the obligation, can be transferred... obligation on January 4, 1983 to Bank M provided that (i) Bank M will not at any time transfer any interest...

26 CFR 5f.103-1 - Obligations issued after December 31, 1982, required to be in registered form.

Code of Federal Regulations, 2014 CFR

2014-04-01

... particular time if it can be transferred at that time or at any time until its maturity by any means not... period beginning with a later time and ending with the maturity of the obligation, can be transferred... obligation on January 4, 1983 to Bank M provided that (i) Bank M will not at any time transfer any interest...

26 CFR 5f.103-1 - Obligations issued after December 31, 1982, required to be in registered form.

Code of Federal Regulations, 2010 CFR

2010-04-01

... particular time if it can be transferred at that time or at any time until its maturity by any means not... period beginning with a later time and ending with the maturity of the obligation, can be transferred... obligation on January 4, 1983 to Bank M provided that (i) Bank M will not at any time transfer any interest...

20 CFR 725.454 - Time and place of hearing; transfer of cases.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 20 Employees' Benefits 4 2012-04-01 2012-04-01 false Time and place of hearing; transfer of cases... TITLE IV OF THE FEDERAL MINE SAFETY AND HEALTH ACT, AS AMENDED Hearings § 725.454 Time and place of hearing; transfer of cases. (a) The Chief Administrative Law Judge shall assign a definite time and place...

20 CFR 725.454 - Time and place of hearing; transfer of cases.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Time and place of hearing; transfer of cases... OF THE FEDERAL MINE SAFETY AND HEALTH ACT, AS AMENDED Hearings § 725.454 Time and place of hearing; transfer of cases. (a) The Chief Administrative Law Judge shall assign a definite time and place for a...

20 CFR 725.454 - Time and place of hearing; transfer of cases.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 20 Employees' Benefits 4 2013-04-01 2013-04-01 false Time and place of hearing; transfer of cases... TITLE IV OF THE FEDERAL MINE SAFETY AND HEALTH ACT, AS AMENDED Hearings § 725.454 Time and place of hearing; transfer of cases. (a) The Chief Administrative Law Judge shall assign a definite time and place...

20 CFR 725.454 - Time and place of hearing; transfer of cases.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 20 Employees' Benefits 4 2014-04-01 2014-04-01 false Time and place of hearing; transfer of cases... TITLE IV OF THE FEDERAL MINE SAFETY AND HEALTH ACT, AS AMENDED Hearings § 725.454 Time and place of hearing; transfer of cases. (a) The Chief Administrative Law Judge shall assign a definite time and place...

20 CFR 725.454 - Time and place of hearing; transfer of cases.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 20 Employees' Benefits 3 2011-04-01 2011-04-01 false Time and place of hearing; transfer of cases... TITLE IV OF THE FEDERAL MINE SAFETY AND HEALTH ACT, AS AMENDED Hearings § 725.454 Time and place of hearing; transfer of cases. (a) The Chief Administrative Law Judge shall assign a definite time and place...

Definitions of Frequency and Timing Terms, Satellite Navigation and Timing Systems, and the Behavior and Analyses of Precision Crystal and Atomic Frequency Standards and their Characteristics

DTIC Science & Technology

2009-05-01

time transfer techniques has largely been due to the improvement in frequency standards. In this document, an effort was made to provide substantial...of RCC Document 214-94, contains definitions of frequency and timing terms, time transfer techniques and analysis, and behavior of crystal and atomic...Characteristics, May 2009 viii TTG Telecommunications and Timing Group TWSTFT Two-Way Satellite Time and Frequency Transfer U.S. United States USNO

Comparison of GLONASS and GPS Time Transfers

NASA Astrophysics Data System (ADS)

Daly, P.; Koshelyaevsky, N. B.; Lewandowski, W.; Petit, G.; Thomas, C.

1993-01-01

The Russian global space navigation system GLONASS could provide a technique similar to GPS for international time comparison. The main limitation to its use for time transfer is the lack of commercially available time receivers. The University of Leeds built a GPS/GLONASS receiver five years ago and since then has provided continuous information about GLONASS time and its comparison with GPS time. For the last two years the VNIIFTRI and several other Russian time laboratories have used Russian-built GLONASS navigation receivers for time comparisons. Since June 1991, the VNIIFTRI has operated a GPS time receiver which offers, for the first time, an opportunity for the direct comparison of time transfers using GPS and GLONASS. This seven-month experiment shows that even with relatively imprecise data recording and processing, in terms of time metrology, GLONASS can provide continental time transfer at a level of several tens of nanoseconds.

22 CFR 62.76 - Transfer procedures.

Code of Federal Regulations, 2012 CFR

2012-04-01

... at a time specified by the transfer sponsor, and shall provide updated U.S. address information. (v... sponsor in a manner and at a time specified by the transfer sponsor and shall provide updated U.S. address... 22 Foreign Relations 1 2012-04-01 2012-04-01 false Transfer procedures. 62.76 Section 62.76...

22 CFR 62.76 - Transfer procedures.

Code of Federal Regulations, 2011 CFR

2011-04-01

... at a time specified by the transfer sponsor, and shall provide updated U.S. address information. (v... sponsor in a manner and at a time specified by the transfer sponsor and shall provide updated U.S. address... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Transfer procedures. 62.76 Section 62.76...

33 CFR 127.1319 - Transfer of LHG.

Code of Federal Regulations, 2014 CFR

2014-07-01

... operator of a waterfront facility handling LHG shall notify the COTP of the time and place of each transfer...) The person in charge supervises transfers only to or from one vessel at a time unless authorized by... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Transfer of LHG. 127.1319 Section...

33 CFR 127.1319 - Transfer of LHG.

Code of Federal Regulations, 2012 CFR

2012-07-01

... operator of a waterfront facility handling LHG shall notify the COTP of the time and place of each transfer...) The person in charge supervises transfers only to or from one vessel at a time unless authorized by... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Transfer of LHG. 127.1319 Section...

33 CFR 127.1319 - Transfer of LHG.

Code of Federal Regulations, 2011 CFR

2011-07-01

... operator of a waterfront facility handling LHG shall notify the COTP of the time and place of each transfer...) The person in charge supervises transfers only to or from one vessel at a time unless authorized by... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Transfer of LHG. 127.1319 Section...

22 CFR 62.76 - Transfer procedures.

Code of Federal Regulations, 2013 CFR

2013-04-01

... at a time specified by the transfer sponsor, and shall provide updated U.S. address information. (v... sponsor in a manner and at a time specified by the transfer sponsor and shall provide updated U.S. address... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Transfer procedures. 62.76 Section 62.76...

7 CFR 1779.88 - Transfers and assumptions.

Code of Federal Regulations, 2013 CFR

2013-01-01

... borrowers will include a one-time nonrefundable transfer fee to the Agency of no more than 1 percent... reasonable debt-paying ability considering their assets and income at the time of transfer, and (ii) The... 7 Agriculture 12 2013-01-01 2013-01-01 false Transfers and assumptions. 1779.88 Section 1779.88...

33 CFR 127.1319 - Transfer of LHG.

Code of Federal Regulations, 2010 CFR

2010-07-01

... operator of a waterfront facility handling LHG shall notify the COTP of the time and place of each transfer...) The person in charge supervises transfers only to or from one vessel at a time unless authorized by... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Transfer of LHG. 127.1319 Section...

22 CFR 62.76 - Transfer procedures.

Code of Federal Regulations, 2010 CFR

2010-04-01

... at a time specified by the transfer sponsor, and shall provide updated U.S. address information. (v... sponsor in a manner and at a time specified by the transfer sponsor and shall provide updated U.S. address... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Transfer procedures. 62.76 Section 62.76...

45 CFR 211.7 - Transfer and release of eligible person.

Code of Federal Regulations, 2014 CFR

2014-10-01

... Transfer and release of eligible person. (a) Transfer and release to relative. If at the time of arrival from a foreign country or any time during temporary or continuing care and treatment the Administrator... 45 Public Welfare 2 2014-10-01 2012-10-01 true Transfer and release of eligible person. 211.7...

22 CFR 62.76 - Transfer procedures.

Code of Federal Regulations, 2014 CFR

2014-04-01

... at a time specified by the transfer sponsor, and shall provide updated U.S. address information. (v... sponsor in a manner and at a time specified by the transfer sponsor and shall provide updated U.S. address... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Transfer procedures. 62.76 Section 62.76...

33 CFR 127.1319 - Transfer of LHG.

Code of Federal Regulations, 2013 CFR

2013-07-01

... operator of a waterfront facility handling LHG shall notify the COTP of the time and place of each transfer...) The person in charge supervises transfers only to or from one vessel at a time unless authorized by... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Transfer of LHG. 127.1319 Section...

Using Six Sigma methodology to reduce patient transfer times from floor to critical-care beds.

PubMed

Silich, Stephan J; Wetz, Robert V; Riebling, Nancy; Coleman, Christine; Khoueiry, Georges; Abi Rafeh, Nidal; Bagon, Emma; Szerszen, Anita

2012-01-01

In response to concerns regarding delays in transferring critically ill patients to intensive care units (ICU), a quality improvement project, using the Six Sigma process, was undertaken to correct issues leading to transfer delay. To test the efficacy of a Six Sigma intervention to reduce transfer time and establish a patient transfer process that would effectively enhance communication between hospital caregivers and improve the continuum of care for patients. The project was conducted at a 714-bed tertiary care hospital in Staten Island, New York. A Six Sigma multidisciplinary team was assembled to assess areas that needed improvement, manage the intervention, and analyze the results. The Six Sigma process identified eight key steps in the transfer of patients from general medical floors to critical care areas. Preintervention data and a root-cause analysis helped to establish the goal transfer-time limits of 3 h for any individual transfer and 90 min for the average of all transfers. The Six Sigma approach is a problem-solving methodology that resulted in almost a 60% reduction in patient transfer time from a general medical floor to a critical care area. The Six Sigma process is a feasible method for implementing healthcare related quality of care projects, especially those that are complex. © 2011 National Association for Healthcare Quality.

Inter-satellite time transfer: Techniques and applications

NASA Technical Reports Server (NTRS)

Detoma, Edoardo; Wardrip, S. Clark

1990-01-01

A brief review is presented of the well known time transfer techniques that have been studied and tested throughout the years. The applicability of time transfer techniques to a timing service as provided through a TDRS/DRS System, the problems related to the choice of the timing signal within the constraints imposed by the existing systems, and the possible practical implementations, including a description of the time synchronization support via TDRSS to the Gamma Ray Observatory (GRO) are discussed.

Chirped frequency transfer: a tool for synchronization and time transfer.

PubMed

Raupach, Sebastian M F; Grosche, Gesine

2014-06-01

We propose and demonstrate the phase-stabilized transfer of a chirped frequency as a tool for synchronization and time transfer. Technically, this is done by evaluating remote measurements of the transferred, chirped frequency. The gates of the frequency counters, here driven by a 10-MHz oscillation derived from a hydrogen maser, play a role analogous to the 1-pulse per second (PPS) signals usually employed for time transfer. In general, for time transfer, the gates consequently must be related to the external clock. Synchronizing observations based on frequency measurements, on the other hand, only requires a stable oscillator driving the frequency counters. In a proof of principle, we demonstrate the suppression of symmetrical delays, such as the geometrical path delay. We transfer an optical frequency chirped by around 240 kHz/s over a fiber link of around 149 km. We observe an accuracy and simultaneity, as well as a precision (Allan deviation, 18,000 s averaging interval) of the transferred frequency of around 2 × 10(-19). We apply chirped frequency transfer to remote measurements of the synchronization between two counters' gate intervals. Here, we find a precision of around 200 ps at an estimated overall uncertainty of around 500 ps. The measurement results agree with those obtained from reference measurements, being well within the uncertainty. In the present setup, timing offsets up to 4 min can be measured unambiguously. We indicate how this range can be extended further.

Optimal Low Energy Earth-Moon Transfers

NASA Technical Reports Server (NTRS)

Griesemer, Paul Ricord; Ocampo, Cesar; Cooley, D. S.

2010-01-01

The optimality of a low-energy Earth-Moon transfer is examined for the first time using primer vector theory. An optimal control problem is formed with the following free variables: the location, time, and magnitude of the transfer insertion burn, and the transfer time. A constraint is placed on the initial state of the spacecraft to bind it to a given initial orbit around a first body, and on the final state of the spacecraft to limit its Keplerian energy with respect to a second body. Optimal transfers in the system are shown to meet certain conditions placed on the primer vector and its time derivative. A two point boundary value problem containing these necessary conditions is created for use in targeting optimal transfers. The two point boundary value problem is then applied to the ballistic lunar capture problem, and an optimal trajectory is shown. Additionally, the ballistic lunar capture trajectory is examined to determine whether one or more additional impulses may improve on the cost of the transfer.

PTB’s Time and Frequency Activities in 2008 and 2009

DTIC Science & Technology

2009-11-01

techniques (C/A code, P3, carrier phase, PPP). Two-way satellite time and fre- quency transfer ( TWSTFT ) is made routinely with several stations in...and frequency transfer ( TWSTFT ) is routinely per- formed with several European and US stations. PTB provides services to disseminate time and...years 2008 and 2009 are pre- sented. TWSTT AND GPS ACTIVITIES PTB uses TWSTFT and GPS Time Transfer to compare the local time scale UTC (PTB

AATA AOS evaluation : transfer and on-time performance study : before and after AOS implementation, October 1996 - May 1999

DOT National Transportation Integrated Search

1999-01-01

This study develops, using data before AOS in 1996 and 1997 and after AOS in 1998 and 1999, implementation data on AATAs on-time performance and vehicle-to-vehicle timing of transfers at four major transfer location. Systematic evaluation of on-ti...

Data and Time Transfer Using SONET Radio

NASA Technical Reports Server (NTRS)

Graceffo, Gary M.

1996-01-01

The need for precise knowledge of time and frequency has become ubiquitous throughout our society. The areas of astronomy, navigation, and high speed wide-area networks are among a few of the many consumers of this type of information. The Global Positioning System (GPS) has the potential to be the most comprehensive source of precise timing information developed to date; however, the introduction of selective availability has made it difficult for many users to recover this information from the GPS system with the precision required for today's systems. The system described in this paper is a 'Synchronous Optical NetWORK (SONET) Radio Data and Time Transfer System'. The objective of this system is to provide precise time and frequency information to a variety of end-users using a two-way data and time-transfer system. Although time and frequency transfers have been done for many years, this system is unique in that time and frequency information are embedded into existing communications traffic. This eliminates the need to make the transfer of time and frequency informatio a dedicated function of the communications system. For this system SONET has been selected as the transport format from which precise time is derived. SONET has been selected because of its high data rates and its increasing acceptance throughout the industry. This paper details a proof-of-concept initiative to perform embedded time and frequency transfers using SONET Radio.

SB 1440 (2010): The Effect of Transfer Degrees on Time to Degree Conferral, Unit Accumulation, and Transfer Attainment for California Community College Students

ERIC Educational Resources Information Center

Wright, Maria

2017-01-01

The purpose of this study was to examine the impact of the Student Transfer Reform Act of 2010 (SB1440) on student success. For the purpose of this study, student success metrics were identified as time to degree conferral, unit accumulation, and transfer attainment. Associate Degrees for Transfer (ADT) were systematized as a result of the Student…

Comparison of GPS and GLONASS common-view time transfers

NASA Technical Reports Server (NTRS)

Lewandowski, W.; Petit, G.; Thomas, C.; Cherenkov, G. T.; Koshelyaevsky, N. B.; Pushkin, S. B.

1993-01-01

It was already shown than even with a simple daily averaging of GLONASS data at each site, continental GLONASS time transfer can be achieved at a level of several tens of nanoseconds. A further step is to carry out observations of GLONASS satellites by the common-view method. A comparison of GPS and GLONASS common-view time transfers between Russia and Western Europe are reported. At each site, a GPS receiver and a GLONASS receiver are connected to the same atomic clock. Both GPS receivers are of NBS type and the GLONASS receivers are of type A-724. As GPS common-view time transfer between Sevres and Mendeleevo is accomplished at a level of a few nanoseconds in precision, it gives an excellent reference with which to evaluate the performance of GLONASS common-view time transfer.

33 CFR 156.118 - Advance notice of transfer.

Code of Federal Regulations, 2014 CFR

2014-07-01

... COTP of the time and place of each transfer operation at least 4 hours before it begins for facilities... the time and place of each transfer operation, as specified by the COTP, at least 4 hours before it... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Advance notice of transfer. 156...

33 CFR 127.1317 - Declaration of Inspection.

Code of Federal Regulations, 2010 CFR

2010-07-01

...— (1) The name of the vessel and that of the facility; (2) The date and time that the transfer begins... to begin transfer; and (5) The signature of each relief person in charge and the date and time of... Inspection. (a) Each person in charge of transfer for the facility shall ensure that no person transfers LHG...

33 CFR 127.1317 - Declaration of Inspection.

Code of Federal Regulations, 2013 CFR

2013-07-01

...— (1) The name of the vessel and that of the facility; (2) The date and time that the transfer begins... to begin transfer; and (5) The signature of each relief person in charge and the date and time of... Inspection. (a) Each person in charge of transfer for the facility shall ensure that no person transfers LHG...

33 CFR 156.118 - Advance notice of transfer.

Code of Federal Regulations, 2011 CFR

2011-07-01

... COTP of the time and place of each transfer operation at least 4 hours before it begins for facilities... the time and place of each transfer operation, as specified by the COTP, at least 4 hours before it... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Advance notice of transfer. 156...

33 CFR 156.118 - Advance notice of transfer.

Code of Federal Regulations, 2013 CFR

2013-07-01

... COTP of the time and place of each transfer operation at least 4 hours before it begins for facilities... the time and place of each transfer operation, as specified by the COTP, at least 4 hours before it... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Advance notice of transfer. 156...

33 CFR 156.118 - Advance notice of transfer.

Code of Federal Regulations, 2010 CFR

2010-07-01

... COTP of the time and place of each transfer operation at least 4 hours before it begins for facilities... the time and place of each transfer operation, as specified by the COTP, at least 4 hours before it... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Advance notice of transfer. 156...

33 CFR 156.118 - Advance notice of transfer.

Code of Federal Regulations, 2012 CFR

2012-07-01

... COTP of the time and place of each transfer operation at least 4 hours before it begins for facilities... the time and place of each transfer operation, as specified by the COTP, at least 4 hours before it... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Advance notice of transfer. 156...

A proposed time transfer experiment between the USA and the South Pacific

NASA Technical Reports Server (NTRS)

Luck, John; Dunkley, John; Armstrong, Tim; Gifford, Guy A.; Landis, Paul; Rasmussen, Scott; Wheeler, Paul J.; Bartholomew, Thomas R.; Stein, Samuel R.

1992-01-01

Described here are the concept, architecture and preliminary details of an experiment directed towards providing continuous Ultra High Precision (UHP) time transfer between Washington, DC; Salisbury, SA Australia; Orroral Valley, ACT Australia; and Lower Hutt, New Zealand. A proposed method of distributing UTC(USNO) at a high level of precision to passive users over a broad area of the South Pacific is described. The concept is based on active two-way satellite time transfer from the United States Naval Observatory (USNO) to the proposed USNO Master Clock West (MCW) in Wahiwa, HI at the 1 nanosecond level using active satellite two-way time transfer augmented by Precise Positioning Service (PPS) of the Global Positioning System (GPS). MCW would act as an intermediate transfer/reference station, again linked to Salisbury at the 1 nanosecond level using active satellite two-way time transfer augmented by PPS GPS. From this point, time would be distributed within the region by two methods. The first is an existing TV line sync system using an Australian communications satellite (AUSSAT K1) which is useful to the 20 nanosecond level. The second approach is RF ranging and multilateration between Salisbury, Orroral Observatory, Lower Hutt and the AUSSAT B1 and B2 to be launched in 1992. Orroral Observatory will provide precise laser ranging to the AUSSAT B1/B2 retro reflectors which will reduce ephemeris related time transfer errors to below 1 nanosecond. The corrected position will be transmitted by both the time transfer modem and the existing TV line sync dissemination process. Multilateration has the advantage of being an all weather approach and when used with the laser ranging technique will provide a precise measurement of the propagation path delays. This will result in time transfer performance levels on the order of 10 nanoseconds to passive users in both Australia and New Zealand.

Effect of the timing of first cleavage on in vitro developmental potential of nuclear-transferred bovine oocytes receiving cumulus and fibroblast cells.

PubMed

Amarnath, Dasari; Kato, Yoko; Tsunoda, Yukio

2007-06-01

The aim of the present study was to examine whether cumulus and fibroblast cell nuclear-transferred oocytes, which have high and low potential to develop into normal calves, respectively, are different in terms of in their patterns of timing of first cleavage and in their relationships between timing of first cleavage and in vitro developmental potential. The timing of first cleavage was similar in both types of nuclear-transferred and in vitro fertilized oocytes. More than 86% of the oocytes cleaved within 24 h after activation or in vitro fertilization; these oocytes contributed to more than 98% of the total number of blastocysts in all three groups. The potential of oocytes that cleaved at different intervals to develop into blastocysts differed among the groups. The developmental potential of the cumulus cell nuclear-transferred oocytes and in vitro fertilized oocytes decreased with the increase in time required for cleavage. Fibroblast cell nuclear-transferred oocytes that cleaved at 20 h, an intermediate cleaving time, had higher potential to develop into blastocysts. The results of the present study suggest that the type of donor nucleus used for nuclear transfer affects the timing of first cleavage.

A method of time transfer between remote stations via LRO

NASA Astrophysics Data System (ADS)

Hoffman, Evan; Sun, Xiaoli; Skillman, David R.; McGarry, Jan F.; Mao, Dandan

2014-05-01

Satellite Laser Ranging (SLR) is a standard geodetic technique that uses the round trip time of light from a ground station to a satellite to determine distance. When combined with a spacecraft detector and timing system, this technique can also be used to transfer time between ground stations, demonstrated by the Time Transfer by Laser Link (T2L2) project by the Centre National d'Etudes Spatiaes (CNES) and Observatorire de la Cote d'Azur (OCA) as well as the Laser Time Transfer (LTT) project by the Shanghai Astronomical Observatory. We describe an additional method of time transfer using simultaneous one-way laser ranging (LR) by two or more ground stations to the Lunar Reconnaissance Orbiter (LRO). A one way ranging is necessary, as two way ranging via retroreflectors for time transfer becomes impractical at lunar distances. The method will utilize the one-way LR currently being performed as a part of the LRO mission, allowing time transfer to be a by-product of the conventional usage of the data. Each ground station is referenced to a Master Clock using a multifrequency all-view GPS receiver at both the ground station and Master Clock locations.The Master Clock is located close enough to the ground station to make ionospheric differences in signal path negligible. Two or more stations range to LRO at the same time and their times of arrival are compared. Results from a ground-based experiment are shown, with sub-nanosecond precision shown to be achievable. Ultimately this measurement will provide a more precise and accurate relation of timing standards between stations, leading to a marked improvement in orbit determination.

Impact of transfer distance and time on rural brain injury outcomes.

PubMed

Gale, Stephen C; Peters, Joann; Hansen, Ashley; Dombrovskiy, Viktor Y; Detwiler, Paul W

2016-01-01

After rural injury, evaluation at local hospitals with transfer to regional trauma centres may delay definitive care. This study sought to determine the impact of such delays on outcomes in patients with TBI within a mature regional trauma system. The ETMC Level 1 Trauma registry was queried from 2008-2013 for patients with blunt TBI, aged ≥ 18 and admitted ≤ 24 hours from injury and stratified them as 'transfer' vs 'direct' admission. Demographics, transfer distance, transfer times and outcomes were compared using Chi-square, t-test and multivariable logistic regression; p < 0.05 was significant. During the study period, 1845 patients met inclusion criteria: 947 'direct' and 898 'transfers'. For transfers, median distance was 60.1 miles; mean time to initial care was 1.2 ± 2.7 hours and time to Level 1 care was 5.0 ± 2.4 hours. Transfer patients were older (56 vs 49 years; p < 0.01) and had more comorbidities, but had lower mean ISS (15.9 vs 18.8; p < 0.01) and lower mortality (7.0 vs 10.3%; p < 0.03), complications and LOS. Neurosurgical intervention was comparable (p = 0.88), as was mortality for patients with ISS ≥ 15 (12.4% vs 14.8%; p = 0.28). After regression analysis, advanced age and increasing ISS, not distance or time, predicted mortality. Neither transfer distance nor time independently contributed to mortality for TBI after rural injury. An established regional trauma system, with initial local stabilization using ATLS principles, may help reduce negative outcomes for injured patients in rural settings.

Decreasing Postanesthesia Care Unit to Floor Transfer Times to Facilitate Short Stay Total Joint Replacements.

PubMed

Sibia, Udai S; Grover, Jennifer; Turcotte, Justin J; Seanger, Michelle L; England, Kimberly A; King, Jennifer L; King, Paul J

2018-04-01

We describe a process for studying and improving baseline postanesthesia care unit (PACU)-to-floor transfer times after total joint replacements. Quality improvement project using lean methodology. Phase I of the investigational process involved collection of baseline data. Phase II involved developing targeted solutions to improve throughput. Phase III involved measured project sustainability. Phase I investigations revealed that patients spent an additional 62 minutes waiting in the PACU after being designated ready for transfer. Five to 16 telephone calls were needed between the PACU and the unit to facilitate each patient transfer. The most common reason for delay was unavailability of the unit nurse who was attending to another patient (58%). Phase II interventions resulted in transfer times decreasing to 13 minutes (79% reduction, P < .001). Phase III recorded sustained transfer times at 30 minutes, a net 52% reduction (P < .001) from baseline. Lean methodology resulted in the immediate decrease of PACU-to-floor transfer times by 79%, with a 52% sustained improvement. Our methods can also be used to improve efficiencies of care at other institutions. Copyright © 2016 American Society of PeriAnesthesia Nurses. Published by Elsevier Inc. All rights reserved.

Resting EEG and behavioural correlates of interhemispheric transfer times.

PubMed

Simon-Dack, Stephanie L; Holtgraves, Thomas; Hernandez, Kristina; Thomas, Christopher

2015-01-01

Correlations between the relative speeds of left-to-right and right-to-left interhemispheric transfer times and resting quantitative electroencephalography activity were examined in order to determine if variability in interhemispheric transfer was related to individual variability in resting neural firing patterns. Resting electroencephalograph frequencies for 32 participants were regressed for 4 frequency bands at 8 different locations calculated for asymmetrical activation through subtracting the left from right average spectral power of each. Participants also completed a series of behavioural tasks that are typically localized to the right hemisphere (RH). Results indicate that the frontal medial average spectral power of the beta band is correlated with the speed of transfer such that larger resting beta values in the right as compared to left location are associated with faster right-to-left interhemispheric transfer times and that larger resting beta values in the left as compared to right location are associated with faster left-to-right interhemispheric transfer times. Furthermore, enhanced performance on tasks typically localized to the RH is correlated with slower right-to-left interhemispheric transfer times, suggesting that the dominance of one hemisphere may come at a cost to interhemispheric communication.

Exploring the characteristics of high-performing hospitals that influence trauma triage and transfer.

PubMed

Gagliardi, Anna R; Nathens, Avery B

2015-02-01

Many trauma patients might be first cared for at nondesignated centers before transfer to a trauma center. Limited research has investigated determinants of timely triage and transfer to identify those amenable to quality improvement. This study explored factors influencing timely triage and transfer in a regional trauma system. Centers (n = 15) with both long and short transfer times (emergency department length of stay before transfer) in Ontario were identified using a regional trauma registry. Physicians and nurses in these centers were interviewed with a view to determining factors that either impeded or enabled rapid decisions regarding the need for transfer to a trauma center. A grounded theory approach and constant comparative technique were used to collect and analyze data. Nineteen physicians and eight nurses participated. Clinician level (experience, training, personality, fear of judgment, nursing role), institutional level (guidelines, continuing education, trauma infrastructure, human resources) and system-level (bed availability, referral center, air transport, communication with trauma centers) factors influenced timely decision making. Participants offered several recommendations to improve care. These included guidelines for transfer, a "no refusal" policy at trauma centers, improved air transport and referral center services, as well as further regionalization. Additional features of hospitals with shorter transfer times included coaching of new staff, team meetings, leadership engagement, sharing of performance data, and minimum work hours for physicians. Numerous interacting factors that may influence trauma triage and transfer were identified. These findings can be used by policy makers, health care managers, and clinicians in emergency departments or trauma centers to evaluate and improve trauma triage and transfer, or plan new services. The findings can also be used by researchers to examine the relevance of these factors in other settings or to implement and evaluate the impact of interventions informed by recommendations generated here.

Timing Activities at INRIM in the Frame of the Galileo Project

DTIC Science & Technology

2008-12-01

PTTI) Meeting 651 • Time Transfer S/S, including TWSTFT Station, CV Rx, OSPF/GSS I/F (to acquire the Galileo onboard and ground “remote” clocks...and Frequency Transfer ( TWSTFT ) [15] and GPS P3 [16] techniques. Clock and time transfer raw data are sent to the GTSPF for further processing on a

Accuracy and Precision of USNO GPS Carrier-Phase Time Transfer

DTIC Science & Technology

2010-01-01

values. Comparison measures used include estimates obtained from two-way satellite time/frequency transfer ( TWSTFT ), and GPS-based estimates obtained...the IGS are used as a benchmark in the computation. Frequency values have a few times 10 -15 fractional frequency uncertainty. TWSTFT values confirm...obtained from two-way satellite time/frequency transfer ( TWSTFT ), BIPM Circular T, and the International GNSS Service (IGS). At present, it is known that

New Trends in Two-Way Time and Frequency Transfer via Satellite

DTIC Science & Technology

1999-12-01

Recent developments performed with SATRE two-way time transfer ( TWSTFT ) modems resulted in significant performance upgrades and operational...improvements of the TWSTFT method These are aimed to reduce : manpower effort and to provide reliable, real-time data via a centralized monitoring and...collection have been used throughout the experiment INTRODUCTION Two-Way Time and Frequency Transfer via Satellite ( TWSTFT ) is a well established method to

Constructing Episodes of Inpatient Care: How to Define Hospital Transfer in Hospital Administrative Health Data?

PubMed

Peng, Mingkai; Li, Bing; Southern, Danielle A; Eastwood, Cathy A; Quan, Hude

2017-01-01

Hospital administrative health data create separate records for each hospital stay of patients. Treating a hospital transfer as a readmission could lead to biased results in health service research. This is a cross-sectional study. We used the hospital discharge abstract database in 2013 from Alberta, Canada. Transfer cases were defined by transfer institution code and were used as the reference standard. Four time gaps between 2 hospitalizations (6, 9, 12, and 24 h) and 2 day gaps between hospitalizations [same day (up to 24 h), ≤1 d (up to 48 h)] were used to identify transfer cases. We compared the sensitivity and positive predictive value (PPV) of 6 definitions across different categories of sex, age, and location of residence. Readmission rates within 30 days were compared after episodes of care were defined at the different time gaps. Among the 6 definitions, sensitivity ranged from 93.3% to 98.7% and PPV ranged from 86.4% to 96%. The time gap of 9 hours had the optimal balance of sensitivity and PPV. The time gaps of same day (up to 24 h) and 9 hours had comparable 30-day readmission rates as the transfer indicator after defining episode of care. We recommend the use of a time gap of 9 hours between 2 hospitalizations to define hospital transfer in inpatient databases. When admission or discharge time is not available in the database, a time gap of same day (up to 24 h) can be used to define hospital transfer.

Problems with multiple use of transfer buffer in protein electrophoretic transfer.

PubMed

Dorri, Yaser; Kurien, Biji T; Scofield, R Hal

2010-04-01

Two-dimensional gel electrophoresis (2DE) and SDS-PAGE are the two most useful methods in protein separation. Proteins separated by 2DE or SDS-PAGE are usually transferred to membranes using a variety of methods, such as electrophoretic transfer, heat-mediated transfer, or nonelectrophoretic transfer, for specific protein detection and/or analysis. In a recent study, Pettegrew et al. claim to reuse transfer buffer containing methanol for at least five times for transferring proteins from SDS-PAGE to polyvinylidene difluoride. They add 150-200 ml fresh transfer solution each time for extended use as a result of loss of transfer buffer. Finally, they test efficiency of each protein transfer by chemiluminescence detection. Here, we comment on this report, as we believe this method is not accurate and useful for protein analysis, and it can cause background binding as well as inaccurate protein analysis.

Two Way Time Transfer via geostationary communication satellite between Shannxi Astronomical Observatory and communications research laboratory.

NASA Astrophysics Data System (ADS)

Li, Huanxin; Song, Jin'an; Li, Zhigang; Liang, Shuangyou

2000-06-01

The time synchronisation is important link for high time service. In radio links to transfer time, the signal delays are changing with distance. Using Two-Way Time Transfer via geostationary satellites can cancel those influence for the most part. In order to establish real international atomic time scale with high precision and to improve time synchronization worldwide, the BIPM proposes the project of global time comparison via TWSTT. The TWSTT project between CSAO and CRL has processed about one year and got some joyful result at first step.

Monitoring data transfer latency in CMS computing operations

DOE PAGES

Bonacorsi, Daniele; Diotalevi, Tommaso; Magini, Nicolo; ...

2015-12-23

During the first LHC run, the CMS experiment collected tens of Petabytes of collision and simulated data, which need to be distributed among dozens of computing centres with low latency in order to make efficient use of the resources. While the desired level of throughput has been successfully achieved, it is still common to observe transfer workflows that cannot reach full completion in a timely manner due to a small fraction of stuck files which require operator intervention.For this reason, in 2012 the CMS transfer management system, PhEDEx, was instrumented with a monitoring system to measure file transfer latencies, andmore » to predict the completion time for the transfer of a data set. The operators can detect abnormal patterns in transfer latencies while the transfer is still in progress, and monitor the long-term performance of the transfer infrastructure to plan the data placement strategy.Based on the data collected for one year with the latency monitoring system, we present a study on the different factors that contribute to transfer completion time. As case studies, we analyze several typical CMS transfer workflows, such as distribution of collision event data from CERN or upload of simulated event data from the Tier-2 centres to the archival Tier-1 centres. For each workflow, we present the typical patterns of transfer latencies that have been identified with the latency monitor.We identify the areas in PhEDEx where a development effort can reduce the latency, and we show how we are able to detect stuck transfers which need operator intervention. Lastly, we propose a set of metrics to alert about stuck subscriptions and prompt for manual intervention, with the aim of improving transfer completion times.« less

Monitoring data transfer latency in CMS computing operations

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bonacorsi, Daniele; Diotalevi, Tommaso; Magini, Nicolo

During the first LHC run, the CMS experiment collected tens of Petabytes of collision and simulated data, which need to be distributed among dozens of computing centres with low latency in order to make efficient use of the resources. While the desired level of throughput has been successfully achieved, it is still common to observe transfer workflows that cannot reach full completion in a timely manner due to a small fraction of stuck files which require operator intervention.For this reason, in 2012 the CMS transfer management system, PhEDEx, was instrumented with a monitoring system to measure file transfer latencies, andmore » to predict the completion time for the transfer of a data set. The operators can detect abnormal patterns in transfer latencies while the transfer is still in progress, and monitor the long-term performance of the transfer infrastructure to plan the data placement strategy.Based on the data collected for one year with the latency monitoring system, we present a study on the different factors that contribute to transfer completion time. As case studies, we analyze several typical CMS transfer workflows, such as distribution of collision event data from CERN or upload of simulated event data from the Tier-2 centres to the archival Tier-1 centres. For each workflow, we present the typical patterns of transfer latencies that have been identified with the latency monitor.We identify the areas in PhEDEx where a development effort can reduce the latency, and we show how we are able to detect stuck transfers which need operator intervention. Lastly, we propose a set of metrics to alert about stuck subscriptions and prompt for manual intervention, with the aim of improving transfer completion times.« less

Targeting Low-Energy Ballistic Lunar Transfers

NASA Technical Reports Server (NTRS)

Parker, Jeffrey S.

2010-01-01

Numerous low-energy ballistic transfers exist between the Earth and Moon that require less fuel than conventional transfers, but require three or more months of transfer time. An entirely ballistic lunar transfer departs the Earth from a particular declination at some time in order to arrive at the Moon at a given time along a desirable approach. Maneuvers may be added to the trajectory in order to adjust the Earth departure to meet mission requirements. In this paper, we characterize the (Delta)V cost required to adjust a low-energy ballistic lunar transfer such that a spacecraft may depart the Earth at a desirable declination, e.g., 28.5(white bullet), on a designated date. This study identifies the optimal locations to place one or two maneuvers along a transfer to minimize the (Delta)V cost of the transfer. One practical application of this study is to characterize the launch period for a mission that aims to launch from a particular launch site, such as Cape Canaveral, Florida, and arrive at a particular orbit at the Moon on a given date using a three-month low-energy transfer.

Using a Cloud Computing System to Reduce Door-to-Balloon Time in Acute ST-Elevation Myocardial Infarction Patients Transferred for Percutaneous Coronary Intervention.

PubMed

Ho, Chi-Kung; Chen, Fu-Cheng; Chen, Yung-Lung; Wang, Hui-Ting; Lee, Chien-Ho; Chung, Wen-Jung; Lin, Cheng-Jui; Hsueh, Shu-Kai; Hung, Shin-Chiang; Wu, Kuan-Han; Liu, Chu-Feng; Kung, Chia-Te; Cheng, Cheng-I

2017-01-01

This study evaluated the impact on clinical outcomes using a cloud computing system to reduce percutaneous coronary intervention hospital door-to-balloon (DTB) time for ST segment elevation myocardial infarction (STEMI). A total of 369 patients before and after implementation of the transfer protocol were enrolled. Of these patients, 262 were transferred through protocol while the other 107 patients were transferred through the traditional referral process. There were no significant differences in DTB time, pain to door of STEMI receiving center arrival time, and pain to balloon time between the two groups. Pain to electrocardiography time in patients with Killip I/II and catheterization laboratory to balloon time in patients with Killip III/IV were significantly reduced in transferred through protocol group compared to in traditional referral process group (both p < 0.05). There were also no remarkable differences in the complication rate and 30-day mortality between two groups. The multivariate analysis revealed that the independent predictors of 30-day mortality were elderly patients, advanced Killip score, and higher level of troponin-I. This study showed that patients transferred through our present protocol could reduce pain to electrocardiography and catheterization laboratory to balloon time in Killip I/II and III/IV patients separately. However, this study showed that using a cloud computing system in our present protocol did not reduce DTB time.

Assessing transfer property and reliability of urban bus network based on complex network theory

NASA Astrophysics Data System (ADS)

Zhang, Hui; Zhuge, Cheng-Xiang; Zhao, Xiang; Song, Wen-Bo

Transfer reliability has an important impact on the urban bus network. The proportion of zero and one transfer time is a key indicator to measure the connectivity of bus networks. However, it is hard to calculate the transfer time between nodes because of the complicated network structure. In this paper, the topological structures of urban bus network in Jinan are constructed by space L and space P. A method to calculate transfer times between stations has been proposed by reachable matrix under space P. The result shows that it is efficient to calculate the transfer time between nodes in large networks. In order to test the transfer reliability, a node failure process has been built according to degree, clustering coefficient and betweenness centrality under space L and space P. The results show that the deliberate attack by betweenness centrality under space P is more effective compared with other five attack modes. This research could provide a power tool to find hub stations in bus networks and give a help for traffic manager to guarantee the normal operation of urban bus systems.

The influence of dielectric relaxation on intramolecular electron transfer

NASA Astrophysics Data System (ADS)

Heitele, H.; Michel-Beyerle, M. E.; Finckh, P.

1987-07-01

An unusually strong temperature dependence on the intramolecular electron-transfer rate has been observed for bridged donor-acceptor compounds in propylene glycol solution. In the frame of recent electron-transfer theories this effect reflects the influence of dielectric relaxation dynamics on electron transfer. With increasing dielectric relaxation time a smooth transition from non-adiabatic to solvent-controlled adiabatic behaviour is observed. The electron transfer rate in the solvent-controlled adiabatic limit is dominated by an inhomogeneous distribution of relaxation times.

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2010-01-01

TWSTT, ALSO REFERRED TO AS TWO-WAY SATELLITE TIME AND FREQUENCY TRANSFER ( TWSTFT ) The most accurate means of operational long-distance time...Frequency Transfer ( TWSTFT ),” Review of Radio Science (Oxford Science Publications), pp. 27-44. [25] L. A. Breakiron, A. L. Smith, B. C. Fonville, E...Breakiron, A. Bauch, D. Piester, D., and Z. Jiang, 2009, “Two-Way Satellite Time and Frequency ( TWSTFT ) Transfer Calibration Constancy from Closure

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2009-11-01

Massachusetts, USA (Institute of Navigation, Alexandria, Virginia). [22] D. Kirchner, 1999, “Two Way Satellite Time and Frequency Transfer ( TWSTFT ...Piester, D., and Z. Jiang, 2009, “Two-Way Satellite Time and Frequency ( TWSTFT ) Transfer Calibration Constancy from Closure Sums,” in Proceedings of...Shäfer, and A. Pawlitzki, 2005, “Development of Carrier- Phase-Based Two-Way Satellite Time and Frequency Transfer ( TWSTFT ),” in Proceedings of the 36 th

26 CFR 1.707-3 - Disguised sales of property to partnership; general rules.

Code of Federal Regulations, 2010 CFR

2010-04-01

... time of an earlier transfer; (ii) That the transferor has a legally enforceable right to the subsequent... of transfers at different times as a sale. (i) The facts are the same as in Example 1, except that... building on the land. At the time the land is transferred to the partnership, it is unencumbered and has an...

26 CFR 1.707-3 - Disguised sales of property to partnership; general rules.

Code of Federal Regulations, 2013 CFR

2013-04-01

... time of an earlier transfer; (ii) That the transferor has a legally enforceable right to the subsequent... of transfers at different times as a sale. (i) The facts are the same as in Example 1, except that... building on the land. At the time the land is transferred to the partnership, it is unencumbered and has an...

20 CFR 416.1246 - Disposal of resources at less than fair market value.

Code of Federal Regulations, 2013 CFR

2013-04-01

... the time of transfer or contract of sale, if earlier. See § 416.1101 for definition of current market... enforceable) agreement in effect at the time of transfer. Compensation also includes all money, real or...—General. The uncompensated value is the fair market value of a resource at the time of transfer minus the...

Process techniques of charge transfer time reduction for high speed CMOS image sensors

NASA Astrophysics Data System (ADS)

Zhongxiang, Cao; Quanliang, Li; Ye, Han; Qi, Qin; Peng, Feng; Liyuan, Liu; Nanjian, Wu

2014-11-01

This paper proposes pixel process techniques to reduce the charge transfer time in high speed CMOS image sensors. These techniques increase the lateral conductivity of the photo-generated carriers in a pinned photodiode (PPD) and the voltage difference between the PPD and the floating diffusion (FD) node by controlling and optimizing the N doping concentration in the PPD and the threshold voltage of the reset transistor, respectively. The techniques shorten the charge transfer time from the PPD diode to the FD node effectively. The proposed process techniques do not need extra masks and do not cause harm to the fill factor. A sub array of 32 × 64 pixels was designed and implemented in the 0.18 μm CIS process with five implantation conditions splitting the N region in the PPD. The simulation and measured results demonstrate that the charge transfer time can be decreased by using the proposed techniques. Comparing the charge transfer time of the pixel with the different implantation conditions of the N region, the charge transfer time of 0.32 μs is achieved and 31% of image lag was reduced by using the proposed process techniques.

A model for the transfer of perceptual-motor skill learning in human behaviors.

PubMed

Rosalie, Simon M; Müller, Sean

2012-09-01

This paper presents a preliminary model that outlines the mechanisms underlying the transfer of perceptual-motor skill learning in sport and everyday tasks. Perceptual-motor behavior is motivated by performance demands and evolves over time to increase the probability of success through adaptation. Performance demands at the time of an event create a unique transfer domain that specifies a range of potentially successful actions. Transfer comprises anticipatory subconscious and conscious mechanisms. The model also outlines how transfer occurs across a continuum, which depends on the individual's expertise and contextual variables occurring at the incidence of transfer

High School Transfer Students and the Transition to College: Timing and the Structure of the School Year

ERIC Educational Resources Information Center

Sutton, April; Muller, Chandra; Langenkamp, Amy G.

2013-01-01

The timing of a high school transfer may shape students' transitions to college through its (mis)alignment with the structure of the school year. A transfer that occurs during the summer interrupts the four-year high school career, whereas a transfer that occurs midyear disrupts both the four-year high school career and the structure of the school…

26 CFR 1.1015-3 - Gift or transfer in trust before January 1, 1921.

Code of Federal Regulations, 2014 CFR

2014-04-01

... the time of the gift or at the time of the transfer in trust. (b) The principles stated in paragraph... 26 Internal Revenue 11 2014-04-01 2014-04-01 false Gift or transfer in trust before January 1... Gift or transfer in trust before January 1, 1921. (a) In the case of property acquired by gift or...

43 CFR 2807.15 - How is grant administration affected if the land my grant encumbers is transferred to another...

Code of Federal Regulations, 2013 CFR

2013-10-01

... effective prior to the time the land is transferred out of Federal ownership. The BLM may then, in... new grant terms and conditions any time after the land encumbered by your grant is transferred out of... the land my grant encumbers is transferred to another Federal agency or out of Federal ownership? 2807...

26 CFR 1.684-1 - Recognition of gain on transfers to certain foreign trusts and estates.

Code of Federal Regulations, 2012 CFR

2012-04-01

... required to recognize gain at the time of the transfer equal to the excess of the fair market value of the...) of this section, A recognizes gain at the time of the transfer equal to 800X. Example 4. Exchange of... 26 Internal Revenue 8 2012-04-01 2012-04-01 false Recognition of gain on transfers to certain...

43 CFR 2807.15 - How is grant administration affected if the land my grant encumbers is transferred to another...

Code of Federal Regulations, 2012 CFR

2012-10-01

... effective prior to the time the land is transferred out of Federal ownership. The BLM may then, in... new grant terms and conditions any time after the land encumbered by your grant is transferred out of... the land my grant encumbers is transferred to another Federal agency or out of Federal ownership? 2807...

26 CFR 1.684-1 - Recognition of gain on transfers to certain foreign trusts and estates.

Code of Federal Regulations, 2013 CFR

2013-04-01

... required to recognize gain at the time of the transfer equal to the excess of the fair market value of the...) of this section, A recognizes gain at the time of the transfer equal to 800X. Example 4. Exchange of... 26 Internal Revenue 8 2013-04-01 2013-04-01 false Recognition of gain on transfers to certain...

43 CFR 2807.15 - How is grant administration affected if the land my grant encumbers is transferred to another...

Code of Federal Regulations, 2011 CFR

2011-10-01

... effective prior to the time the land is transferred out of Federal ownership. The BLM may then, in... new grant terms and conditions any time after the land encumbered by your grant is transferred out of... the land my grant encumbers is transferred to another Federal agency or out of Federal ownership? 2807...

Special Issue on Time Scale Algorithms

DTIC Science & Technology

2008-01-01

are currently Two Way Satellite Time and Frequency Transfer ( TWSTFT ) and GPS carrier phase time transfer. The interest in time scale algorithms and...laboratory-specific innovations and practices, GNSS applications, UTC generation, TWSTFT applications, GPS applications, small-ensemble applications

Towards a TWSTFT network time transfer

NASA Astrophysics Data System (ADS)

Jiang, Z.

2008-12-01

TWSTFT (Two Way Satellite Time and Frequency Transfer, TW hereafter) is a major technique used in TAI (International Atomic Time) generation. More than two-thirds of TAI clocks and almost all the primary frequency standards are transferred using TW. Up to now, the only geometry in TAI time transfer is single-link. However, the TAI TW time transfer data are highly redundant. In general, for an N-point network, there are N(N - 1)/2 independently measured links. Among them, only N - 1 will be used. We then have (N2 - 3N + 2)/2 redundant links. As a function of N, the redundant measurements increase quickly (cf figure 1 and table 1). At present, for the European-American network N = 13, but only 12 out of a total of 78 measured links are used in TAI. For the Asia-Pacific regions, N = 8. Full use of the high redundancy is an effective way to improve TAI without new cost. The sum of three TW links that form a closed triangle is the triangle closure. Theoretically a closure is expected to be zero if there are no measurement errors, namely the triangle closure condition. A non-zero closure is a true error and an index of the time link quality. A redundant link sets a geometric constraint. There are (N2 - 3N + 2)/2 independent conditions in a network. In 2006, Jiang and Petit (Proc. EFTF 2006 pp 468-75) proposed a mathematical model to adjust the closures to zero by global network processing. In consequence, time transfer between any two points through any link(s) in the network gives exactly the same result with the same uncertainty. This is the so-called network time transfer. In this paper, the author introduces his recent works on completing the network model by adding the calibration, the uncertainty estimation and the quality assessment using GPS PPP (time transfer by precise point positioning (PPP hereafter)) (Kouba and Héroux 2001 GPS Solut. 5 12-28, Ray and Senior 2005 Metrologia 42 215-32, Orgiazzi et al 2005 Proc. IEEE FCS 2005 pp 337-45, Defraigne et al 2007 Proc. EFTF 2007 pp 909-13, Petit and Jiang 2008 Int. J. Navig. Obs. 2008 1-8). As an independent technique with higher short-term stability, PPP is then a good reference to evaluate the improvement in the network time transfer. The gain is at least 30%. The new method also gives a solution for the high redundancy in the TAI international TW time transfer network. The TAI software Tsoft is operational to perform the network time transfer.

Bilateral transfer for learning to control timing but not for learning to control fine force.

PubMed

Yao, Wan X; Cordova, Alberto; Huang, Yufei; Wang, Yan; Lu, Xing

2014-04-01

This study examined the characteristics of bilateral transfer of learning to control timing and fine force from a dominant limb to a nondominant limb. 20 right-handed college students (12 women, 8 men; M age = 21.5 yr., SD = 2.3) learned a sequential task consisting of timing and force control. Each participant completed a pre-test of the task with both hands and then performed 100 practice trials with the dominant hand. A post-test was conducted 1 hr. later. The results showed that after training, participants learned to control the timing and force. Nevertheless, only the time-control learning was transferred to the untrained hand, whereas the force-control learning did not transfer to the untrained hand.

12 CFR 205.7 - Initial disclosures.

Code of Federal Regulations, 2014 CFR

2014-01-01

... TRANSFERS (REGULATION E) § 205.7 Initial disclosures. (a) Timing of disclosures. A financial institution shall make the disclosures required by this section at the time a consumer contracts for an electronic fund transfer service or before the first electronic fund transfer is made involving the consumer's...

12 CFR 205.7 - Initial disclosures.

Code of Federal Regulations, 2010 CFR

2010-01-01

... TRANSFERS (REGULATION E) § 205.7 Initial disclosures. (a) Timing of disclosures. A financial institution shall make the disclosures required by this section at the time a consumer contracts for an electronic fund transfer service or before the first electronic fund transfer is made involving the consumer's...

Conceptual models governing leaching behavior and their long-term predictive capability

USGS Publications Warehouse

Claassen, Hans C.

1981-01-01

Six models that may be used to describe the interaction of radioactive waste solids with aqueous solutions are as follows:Simple linear mass transfer;Simple parabolic mass transfer;Parabolic mass transfer with the formation of a diffusion-limiting surface layer at an arbitrary time;Initial parabolic mass transfer followed by linear mass transfer at an arbitrary time;Parabolic (or linear) mass transfer and concomitant surface sorption; andParabolic (or linear) mass transfer and concomitant chemical precipitation.Some of these models lead to either illogical or unrealistic predictions when published data are extrapolated to long times. These predictions result because most data result from short-term experimentation. Probably for longer times, processes will occur that have not been observed in the shorter experiments. This hypothesis has been verified by mass-transfer data from laboratory experiments using natural volcanic glass to predict the composition of groundwater. That such rate-limiting mechanisms do occur is reassuring, although now it is not possible to deduce a single mass-transfer limiting mechanism that could control the solution concentration of all components of all waste forms being investigated. Probably the most reasonable mechanisms are surface sorption and chemical precipitation of the species of interest. Another is limiting of mass transfer by chemical precipitation on the waste form surface of a substance not containing the species of interest, that is, presence of a diffusion-limiting layer. The presence of sorption and chemical precipitation as factors limiting mass transfer has been verified in natural groundwater systems, whereas the diffusion-limiting mechanism has not been verified yet.

Femtosecond-level timing fluctuation suppression in atmospheric frequency transfer with passive phase conjunction correction.

PubMed

Sun, Fuyu; Hou, Dong; Zhang, Danian; Tian, Jie; Hu, Jianguo; Huang, Xianhe; Chen, Shijun

2017-09-04

We demonstrate femtosecond-level timing fluctuation suppression in indoor atmospheric comb-based frequency transfer with a passive phase conjunction correction technique. Timing fluctuations and Allan deviations are both measured to characterize the excess frequency instability incurred during the frequency transfer process. By transferring a 2 GHz microwave over a 52-m long free-space link in 5000 s, the total root-mean-square (RMS) timing fluctuation was measured to be about 280 fs with a fractional frequency instability on the order of 3 × 10 -13 at 1 s and 6 × 10 -17 at 1000 s. This atmospheric comb-based frequency transfer with passive phase conjunction correction can be used to build an atomic clock-based free-space frequency transmission link because its instability is less than that of a commercial Cs or H-master clock.

Robust wireless power transfer using a nonlinear parity-time-symmetric circuit.

PubMed

Assawaworrarit, Sid; Yu, Xiaofang; Fan, Shanhui

2017-06-14

Considerable progress in wireless power transfer has been made in the realm of non-radiative transfer, which employs magnetic-field coupling in the near field. A combination of circuit resonance and impedance transformation is often used to help to achieve efficient transfer of power over a predetermined distance of about the size of the resonators. The development of non-radiative wireless power transfer has paved the way towards real-world applications such as wireless powering of implantable medical devices and wireless charging of stationary electric vehicles. However, it remains a fundamental challenge to create a wireless power transfer system in which the transfer efficiency is robust against the variation of operating conditions. Here we propose theoretically and demonstrate experimentally that a parity-time-symmetric circuit incorporating a nonlinear gain saturation element provides robust wireless power transfer. Our results show that the transfer efficiency remains near unity over a distance variation of approximately one metre, without the need for any tuning. This is in contrast with conventional methods where high transfer efficiency can only be maintained by constantly tuning the frequency or the internal coupling parameters as the transfer distance or the relative orientation of the source and receiver units is varied. The use of a nonlinear parity-time-symmetric circuit should enable robust wireless power transfer to moving devices or vehicles.

Robust wireless power transfer using a nonlinear parity-time-symmetric circuit

NASA Astrophysics Data System (ADS)

Assawaworrarit, Sid; Yu, Xiaofang; Fan, Shanhui

2017-06-01

Considerable progress in wireless power transfer has been made in the realm of non-radiative transfer, which employs magnetic-field coupling in the near field. A combination of circuit resonance and impedance transformation is often used to help to achieve efficient transfer of power over a predetermined distance of about the size of the resonators. The development of non-radiative wireless power transfer has paved the way towards real-world applications such as wireless powering of implantable medical devices and wireless charging of stationary electric vehicles. However, it remains a fundamental challenge to create a wireless power transfer system in which the transfer efficiency is robust against the variation of operating conditions. Here we propose theoretically and demonstrate experimentally that a parity-time-symmetric circuit incorporating a nonlinear gain saturation element provides robust wireless power transfer. Our results show that the transfer efficiency remains near unity over a distance variation of approximately one metre, without the need for any tuning. This is in contrast with conventional methods where high transfer efficiency can only be maintained by constantly tuning the frequency or the internal coupling parameters as the transfer distance or the relative orientation of the source and receiver units is varied. The use of a nonlinear parity-time-symmetric circuit should enable robust wireless power transfer to moving devices or vehicles.

7 CFR 932.54 - Transfers.

Code of Federal Regulations, 2014 CFR

2014-01-01

..., the transferring handler shall comply with all applicable regulations up to the time of such transfer... 7 Agriculture 8 2014-01-01 2014-01-01 false Transfers. 932.54 Section 932.54 Agriculture... Regulating Handling Regulations § 932.54 Transfers. Transfers within the area of olives from one handler to...

7 CFR 932.54 - Transfers.

Code of Federal Regulations, 2010 CFR

2010-01-01

..., the transferring handler shall comply with all applicable regulations up to the time of such transfer... 7 Agriculture 8 2010-01-01 2010-01-01 false Transfers. 932.54 Section 932.54 Agriculture... Regulating Handling Regulations § 932.54 Transfers. Transfers within the area of olives from one handler to...

7 CFR 932.54 - Transfers.

Code of Federal Regulations, 2012 CFR

2012-01-01

..., the transferring handler shall comply with all applicable regulations up to the time of such transfer... 7 Agriculture 8 2012-01-01 2012-01-01 false Transfers. 932.54 Section 932.54 Agriculture... Regulating Handling Regulations § 932.54 Transfers. Transfers within the area of olives from one handler to...

7 CFR 932.54 - Transfers.

Code of Federal Regulations, 2013 CFR

2013-01-01

..., the transferring handler shall comply with all applicable regulations up to the time of such transfer... 7 Agriculture 8 2013-01-01 2013-01-01 false Transfers. 932.54 Section 932.54 Agriculture... Regulating Handling Regulations § 932.54 Transfers. Transfers within the area of olives from one handler to...

7 CFR 932.54 - Transfers.

Code of Federal Regulations, 2011 CFR

2011-01-01

..., the transferring handler shall comply with all applicable regulations up to the time of such transfer... 7 Agriculture 8 2011-01-01 2011-01-01 false Transfers. 932.54 Section 932.54 Agriculture... Regulating Handling Regulations § 932.54 Transfers. Transfers within the area of olives from one handler to...

On Optimizing the Configuration of Time-Transfer Links Used to Generate TAI

DTIC Science & Technology

2007-01-01

TAI be generated through combinations of Two Way Satellite Time and Frequency Transfer ( TWSTFT ) links and GPS links. It is assumed that Study Group I...the lack of low-noise connectivity between the Asian and American-European TWSTFT links may require two pivot sites instead of one. We recommend...band Two Way Satellite Time and Frequency Transfer ( TWSTFT ), and X-band TWSTFT [1]. In order to improve TAI-generation, the BIPM Time Section asked

Estimation of interhemispheric dynamics from simple unimanual reaction time to extrafoveal stimuli.

PubMed

Braun, C M

1992-12-01

This essay reviews research on interhemispheric transfer time derived from simple unimanual reaction time to hemitachistoscopically presented visual stimuli. Part 1 reviews major theoretical themes including (a) the significance of the eccentricity effect on interhemispheric transfer time in the context of proposed underlying neurohistological constraints; (b) the significance of gender differences in interhemispheric transfer time and findings in dyslexics and left-handers in the context of a fetal brain testosterone model; and (c) the significance of complexity effects on interhemispheric transfer time in a context of "dynamic" vs. "hard-wired" concepts of the underlying interhemispheric communication systems. Part 2 consists of a meta-analysis of 49 published behavioral experiments, in view of drawing a portrait of the best set of experimental conditions apt to produce salient, reliable, and statistically significant measures of interhemispheric transfer time, namely (a) index rather than thumb response, (b) low rather than high target luminance, (c) short rather than prolonged target display, and (d) very eccentric rather than near-foveal stimulus location. Part 3 proposes a theoretical model of interhemispheric transfer time, postulating the measurable existence of fast and slow interhemispheric channels. The proposed mechanism's evolutionary adaptive value, the neurophysiological evidence in its support, and favorable functional evidence from studies of callosotomized patients are then presented followed by proposals for critical experimental tests of the model.

Specificity and transfer effects in time production skill: examining the role of attention.

PubMed

Wohldmann, Erica L; Healy, Alice F; Bourne, Lyle E

2012-05-01

Two experiments examined transfer of a prospective, time production skill under conditions involving changes in concurrent task requirements. Positive transfer of the time production skill might be expected only when the attentional demands of the concurrent task were held constant from training to test. However, some positive transfer was found even when the concurrent task at retraining was made either easier or more difficult than the concurrent task learned during training. The amount and direction of transfer depended more on the pacing of the stimuli in the secondary task than on the difficulty of the secondary task, even though difficulty affects attentional demands more. These findings are consistent with the procedural reinstatement principle of skill learning, by which transfer from one task to another depends on an overlap in procedures required by the two skills.

Reduction in STEMI transfer times utilizing a municipal "911" ambulance service.

PubMed

Tennyson, Joseph C; Quale, Mark R

2014-02-01

The time interval from diagnosis to reperfusion therapy for patients experiencing ST-segment elevation myocardial infarction (STEMI) has a significant impact on morbidity and mortality. It is hypothesized that the time required for interfacility patient transfers from a community hospital to a regional percutaneous coronary intervention (PCI) center using an Advanced Life Support (ALS) transfer ambulance service is no different than utilizing the "911" ALS ambulance. Quality assurance data collected by a tertiary care center cardiac catheterization program were reviewed retrospectively. Data were collected on all patients with STEMI requiring interfacility transfer from a local community hospital to the tertiary care center's PCI suite, approximately 16 miles away by ground, 12 miles by air. In 2009, transfers of patients with STEMI were redirected to the municipal ALS ambulance service, instead of the hospital's contracted ALS transfer service. Data were collected from January 2007 through May 2013. Temporal data were compared between transports initiated through the contracted ALS ambulance service and the municipal ALS service. Data points included time of initial transport request and time of ambulance arrival to the sending facility and the receiving PCI suite. During the 4-year study period, 63 patients diagnosed with STEMI and transferred to the receiving hospital's PCI suite were included in this study. Mean times from the transport request to arrival of the ambulance at the sending hospital's emergency department were six minutes (95% CI, 4-7 minutes) via municipal ALS and 13 minutes (95% CI, 9-16 minutes) for the ALS transfer service. The mean times from the ground transport request to arrival at the receiving hospital's PCI suite when utilizing the municipal ALS ambulance and hospital contracted ALS ambulance services were 48 minutes (95% CI, 33-64 minutes) and 56 minutes (95% CI 52-59 minutes), respectively. This eight-minute period represented a 14% (P = .001) reduction in the mean transfer time to the PCI suite for patients transported via the municipal ALS ambulance. In the appropriate setting, the use of the municipal "911" ALS ambulance service for the interfacility transport of patients with STEMI appears advantageous in reducing door-to-catheterization times.

Lossless data compression for improving the performance of a GPU-based beamformer.

PubMed

Lok, U-Wai; Fan, Gang-Wei; Li, Pai-Chi

2015-04-01

The powerful parallel computation ability of a graphics processing unit (GPU) makes it feasible to perform dynamic receive beamforming However, a real time GPU-based beamformer requires high data rate to transfer radio-frequency (RF) data from hardware to software memory, as well as from central processing unit (CPU) to GPU memory. There are data compression methods (e.g. Joint Photographic Experts Group (JPEG)) available for the hardware front end to reduce data size, alleviating the data transfer requirement of the hardware interface. Nevertheless, the required decoding time may even be larger than the transmission time of its original data, in turn degrading the overall performance of the GPU-based beamformer. This article proposes and implements a lossless compression-decompression algorithm, which enables in parallel compression and decompression of data. By this means, the data transfer requirement of hardware interface and the transmission time of CPU to GPU data transfers are reduced, without sacrificing image quality. In simulation results, the compression ratio reached around 1.7. The encoder design of our lossless compression approach requires low hardware resources and reasonable latency in a field programmable gate array. In addition, the transmission time of transferring data from CPU to GPU with the parallel decoding process improved by threefold, as compared with transferring original uncompressed data. These results show that our proposed lossless compression plus parallel decoder approach not only mitigate the transmission bandwidth requirement to transfer data from hardware front end to software system but also reduce the transmission time for CPU to GPU data transfer. © The Author(s) 2014.

Study on solid liquid interface heat transfer of PCM under simultaneous charging and discharging (SCD) in horizontal cylinder annulus

NASA Astrophysics Data System (ADS)

Omojaro, Adebola Peter; Breitkopf, Cornelia

2017-07-01

Heat transfer performance during the simultaneous charging and discharging (SCD) operation process for phase change materials (PCM) contained inside the annulus of concentric horizontal cylinder was investigated. In the experimental set-up, the PCM inside the annulus serves as the heat sink along with an externally imposed forced cooling air. The obtained time wise temperature profile was used to determine the effects of different heat fluxes and the imposed forced convection cooling on the melt fraction values and the transition shift time from the observed conduction to natural convection heat transfer patterns. Furthermore, non-dimensional analysis was presented for the heat transfer at the interface to enable generalizing the result. Comparison of the results show that the SCD operation mode establish the condition that enables much PCM phase transition time and thus longer time of large latent heat transfer effect than the Partial and non simultaneous operations. Analysis results show that the variation of the heat flux for the SCD mode did not change the dominance of the natural convection over conduction heat transfers in the PCM. However, it significantly influences the commencement/transition shift time and melting rate while higher heat fluxes yields melt fraction that was 38-63% more for investigated process time. Variation with different cooling air flow rate shows more influences on the melt fraction than on the mode of heat transfer occurring in the PCM during melting. Available non-SCD modes correlation was shown to be insufficient to accurately predict interface heat transfer for the SCD modes.

75 FR 51867 - Self-Regulatory Organizations; National Securities Clearing Corporation; Order Approving Proposed...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-08-23

... Enhance the Process for Transfers Through the Automated Customer Account Transfer Service August 16, 2010... Transfer Service (``ACATS'') system enables Members to effect automated transfers of customer accounts... transfer services and to effect customer account transfers within specified time frames. \\4\\ CNS is an...

38 CFR 36.4377 - Transfer of insured loans.

Code of Federal Regulations, 2014 CFR

2014-07-01

... the time of transfer there shall be transferred from the insurance account of the transferor to the... 38 Pensions, Bonuses, and Veterans' Relief 2 2014-07-01 2014-07-01 false Transfer of insured loans... Transfer of insured loans. (a) In cases involving the transfer from one insured financial institution to...

38 CFR 36.4377 - Transfer of insured loans.

Code of Federal Regulations, 2011 CFR

2011-07-01

... the time of transfer there shall be transferred from the insurance account of the transferor to the... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Transfer of insured loans... Transfer of insured loans. (a) In cases involving the transfer from one insured financial institution to...

40 CFR 152.135 - Transfer of registration.

Code of Federal Regulations, 2011 CFR

2011-07-01

... wishes to transfer data rights at the same time as he transfers the registration, he may submit a single... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Transfer of registration. 152.135... Transfer of registration. (a) A registrant may transfer the registration of a product to another person...

38 CFR 36.4377 - Transfer of insured loans.

Code of Federal Regulations, 2010 CFR

2010-07-01

... the time of transfer there shall be transferred from the insurance account of the transferor to the... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Transfer of insured loans... Transfer of insured loans. (a) In cases involving the transfer from one insured financial institution to...

38 CFR 36.4377 - Transfer of insured loans.

Code of Federal Regulations, 2012 CFR

2012-07-01

... the time of transfer there shall be transferred from the insurance account of the transferor to the... 38 Pensions, Bonuses, and Veterans' Relief 2 2012-07-01 2012-07-01 false Transfer of insured loans... Transfer of insured loans. (a) In cases involving the transfer from one insured financial institution to...

40 CFR 152.135 - Transfer of registration.

Code of Federal Regulations, 2014 CFR

2014-07-01

... wishes to transfer data rights at the same time as he transfers the registration, he may submit a single... 40 Protection of Environment 24 2014-07-01 2014-07-01 false Transfer of registration. 152.135... Transfer of registration. (a) A registrant may transfer the registration of a product to another person...

38 CFR 36.4377 - Transfer of insured loans.

Code of Federal Regulations, 2013 CFR

2013-07-01

... the time of transfer there shall be transferred from the insurance account of the transferor to the... 38 Pensions, Bonuses, and Veterans' Relief 2 2013-07-01 2013-07-01 false Transfer of insured loans... Transfer of insured loans. (a) In cases involving the transfer from one insured financial institution to...

Energy transfer of highly vibrationally excited biphenyl.

PubMed

Hsu, Hsu Chen; Dyakov, Yuri; Ni, Chi-Kung

2010-11-07

The energy transfer between Kr atoms and highly vibrationally excited, rotationally cold biphenyl in the triplet state was investigated using crossed-beam/time-of-flight mass spectrometer/time-sliced velocity map ion imaging techniques. Compared to the energy transfer of naphthalene, energy transfer of biphenyl shows more forward scattering, less complex formation, larger cross section for vibrational to translational (V→T) energy transfer, smaller cross section for translational to vibrational and rotational (T→VR) energy transfer, larger total collisional cross section, and more energy transferred from vibration to translation. Significant increase in the large V→T energy transfer probabilities, termed supercollisions, was observed. The difference in the energy transfer of highly vibrationally excited molecules between rotationally cold naphthalene and rotationally cold biphenyl is very similar to the difference in the energy transfer of highly vibrationally excited molecules between rotationally cold naphthalene and rotationally hot naphthalene. The low-frequency vibrational modes with out-of-plane motion and rotationlike wide-angle motion are attributed to make the energy transfer of biphenyl different from that of naphthalene.

43 CFR 3216.15 - When must I file my transfer request?

Code of Federal Regulations, 2014 CFR

2014-10-01

... complete the transfer. (b) There is no specific time deadline for filing estate transfers, corporate... 43 Public Lands: Interior 2 2014-10-01 2014-10-01 false When must I file my transfer request? 3216... Transfers § 3216.15 When must I file my transfer request? (a) File a request to transfer record title or...

43 CFR 3216.15 - When must I file my transfer request?

Code of Federal Regulations, 2012 CFR

2012-10-01

... complete the transfer. (b) There is no specific time deadline for filing estate transfers, corporate... 43 Public Lands: Interior 2 2012-10-01 2012-10-01 false When must I file my transfer request? 3216... Transfers § 3216.15 When must I file my transfer request? (a) File a request to transfer record title or...

43 CFR 3216.15 - When must I file my transfer request?

Code of Federal Regulations, 2011 CFR

2011-10-01

... complete the transfer. (b) There is no specific time deadline for filing estate transfers, corporate... 43 Public Lands: Interior 2 2011-10-01 2011-10-01 false When must I file my transfer request? 3216... Transfers § 3216.15 When must I file my transfer request? (a) File a request to transfer record title or...

43 CFR 3216.15 - When must I file my transfer request?

Code of Federal Regulations, 2013 CFR

2013-10-01

... complete the transfer. (b) There is no specific time deadline for filing estate transfers, corporate... 43 Public Lands: Interior 2 2013-10-01 2013-10-01 false When must I file my transfer request? 3216... Transfers § 3216.15 When must I file my transfer request? (a) File a request to transfer record title or...

Using a Cloud Computing System to Reduce Door-to-Balloon Time in Acute ST-Elevation Myocardial Infarction Patients Transferred for Percutaneous Coronary Intervention

PubMed Central

Ho, Chi-Kung; Wang, Hui-Ting; Lee, Chien-Ho; Chung, Wen-Jung; Lin, Cheng-Jui; Hsueh, Shu-Kai; Hung, Shin-Chiang; Wu, Kuan-Han; Liu, Chu-Feng; Kung, Chia-Te

2017-01-01

Background This study evaluated the impact on clinical outcomes using a cloud computing system to reduce percutaneous coronary intervention hospital door-to-balloon (DTB) time for ST segment elevation myocardial infarction (STEMI). Methods A total of 369 patients before and after implementation of the transfer protocol were enrolled. Of these patients, 262 were transferred through protocol while the other 107 patients were transferred through the traditional referral process. Results There were no significant differences in DTB time, pain to door of STEMI receiving center arrival time, and pain to balloon time between the two groups. Pain to electrocardiography time in patients with Killip I/II and catheterization laboratory to balloon time in patients with Killip III/IV were significantly reduced in transferred through protocol group compared to in traditional referral process group (both p < 0.05). There were also no remarkable differences in the complication rate and 30-day mortality between two groups. The multivariate analysis revealed that the independent predictors of 30-day mortality were elderly patients, advanced Killip score, and higher level of troponin-I. Conclusions This study showed that patients transferred through our present protocol could reduce pain to electrocardiography and catheterization laboratory to balloon time in Killip I/II and III/IV patients separately. However, this study showed that using a cloud computing system in our present protocol did not reduce DTB time. PMID:28900621

Metro passengers’ route choice model and its application considering perceived transfer threshold

PubMed Central

Jin, Fanglei; Zhang, Yongsheng; Liu, Shasha

2017-01-01

With the rapid development of the Metro network in China, the greatly increased route alternatives make passengers’ route choice behavior and passenger flow assignment more complicated, which presents challenges to the operation management. In this paper, a path sized logit model is adopted to analyze passengers’ route choice preferences considering such parameters as in-vehicle time, number of transfers, and transfer time. Moreover, the “perceived transfer threshold” is defined and included in the utility function to reflect the penalty difference caused by transfer time on passengers’ perceived utility under various numbers of transfers. Next, based on the revealed preference data collected in the Guangzhou Metro, the proposed model is calibrated. The appropriate perceived transfer threshold value and the route choice preferences are analyzed. Finally, the model is applied to a personalized route planning case to demonstrate the engineering practicability of route choice behavior analysis. The results show that the introduction of the perceived transfer threshold is helpful to improve the model’s explanatory abilities. In addition, personalized route planning based on route choice preferences can meet passengers’ diversified travel demands. PMID:28957376

Theory and computation of optimal low- and medium-thrust transfers

NASA Technical Reports Server (NTRS)

Chuang, C.-H.

1994-01-01

This report presents two numerical methods considered for the computation of fuel-optimal, low-thrust orbit transfers in large numbers of burns. The origins of these methods are observations made with the extremal solutions of transfers in small numbers of burns; there seems to exist a trend such that the longer the time allowed to perform an optimal transfer the less fuel that is used. These longer transfers are obviously of interest since they require a motor of low thrust; however, we also find a trend that the longer the time allowed to perform the optimal transfer the more burns are required to satisfy optimality. Unfortunately, this usually increases the difficulty of computation. Both of the methods described use small-numbered burn solutions to determine solutions in large numbers of burns. One method is a homotopy method that corrects for problems that arise when a solution requires a new burn or coast arc for optimality. The other method is to simply patch together long transfers from smaller ones. An orbit correction problem is solved to develop this method. This method may also lead to a good guidance law for transfer orbits with long transfer times.

Time course influences transfer of visual perceptual learning across spatial location.

PubMed

Larcombe, S J; Kennard, C; Bridge, H

2017-06-01

Visual perceptual learning describes the improvement of visual perception with repeated practice. Previous research has established that the learning effects of perceptual training may be transferable to untrained stimulus attributes such as spatial location under certain circumstances. However, the mechanisms involved in transfer have not yet been fully elucidated. Here, we investigated the effect of altering training time course on the transferability of learning effects. Participants were trained on a motion direction discrimination task or a sinusoidal grating orientation discrimination task in a single visual hemifield. The 4000 training trials were either condensed into one day, or spread evenly across five training days. When participants were trained over a five-day period, there was transfer of learning to both the untrained visual hemifield and the untrained task. In contrast, when the same amount of training was condensed into a single day, participants did not show any transfer of learning. Thus, learning time course may influence the transferability of perceptual learning effects. Copyright © 2017 Elsevier Ltd. All rights reserved.

TWSTFT Network Status in the Pacific Rim Region and Development of a New Time Transfer Modem for TWSTFT

DTIC Science & Technology

2000-01-01

32nd Annual Precise T ime and Time Interval ( P T T I ) Meeting TWSTFT NETWORK STATUS IN THE PACIFIC RIM REGION AND DEVELOPMENT OF A NEW TIME...TRANSFER MODEM FOR TWSTFT M. Imael, M. Hosokawal, Y . Hanadol, 2. Li2, P. Fisk3, Y . Nakadan4, and C. S. Liao5 ’Communications Research Laboratory...Metrology (NRLM), Japan 5Telecommunication Laboratories (TL) , Taipei, Taiwan Abstract Iko-Way Satellite Time and Frequency Transfer ( TWSTFT ) is one

Impulsive time-free transfers between halo orbits

NASA Astrophysics Data System (ADS)

Hiday, L. A.; Howell, K. C.

1992-08-01

A methodology is developed to design optimal time-free impulsive transfers between three-dimensional halo orbits in the vicinity of the interior L1 libration point of the sun-earth/moon barycenter system. The transfer trajectories are optimal in the sense that the total characteristics velocity required to implement the transfer exhibits a local minimum. Criteria are established whereby the implementation of a coast in the initial orbit, a coast in the final orbit, or dual coasts accomplishes a reduction in fuel expenditure. The optimality of a reference two-impulse transfer can be determined by examining the slope at the endpoints of a plot of the magnitude of the primer vector on the reference trajectory. If the initial and final slopes of the primer magnitude are zero, the transfer trajectory is optimal; otherwise, the execution of coasts is warranted. The optimal time of flight on the time-free transfer, and consequently, the departure and arrival locations on the halo orbits are determined by the unconstrained minimization of a function of two variables using a multivariable search technique. Results indicate that the cost can be substantially diminished by the allowance for coasts in the initial and final libration-point orbits.

Impulsive Time-Free Transfers Between Halo Orbits

NASA Astrophysics Data System (ADS)

Hiday-Johnston, L. A.; Howell, K. C.

1996-12-01

A methodology is developed to design optimal time-free impulsive transfers between three-dimensional halo orbits in the vicinity of the interior L 1 libration point of the Sun-Earth/Moon barycenter system. The transfer trajectories are optimal in the sense that the total characteristic velocity required to implement the transfer exhibits a local minimum. Criteria are established whereby the implementation of a coast in the initial orbit, a coast in the final orbit, or dual coasts accomplishes a reduction in fuel expenditure. The optimality of a reference two-impulse transfer can be determined by examining the slope at the endpoints of a plot of the magnitude of the primer vector on the reference trajectory. If the initial and final slopes of the primer magnitude are zero, the transfer trajectory is optimal; otherwise, the execution of coasts is warranted. The optimal time of flight on the time-free transfer, and consequently, the departure and arrival locations on the halo orbits are determined by the unconstrained minimization of a function of two variables using a multivariable search technique. Results indicate that the cost can be substantially diminished by the allowance for coasts in the initial and final libration-point orbits.

Energy transfer of highly vibrationally excited phenanthrene and diphenylacetylene.

PubMed

Hsu, Hsu Chen; Tsai, Ming-Tsang; Dyakov, Yuri; Ni, Chi-Kung

2011-05-14

The energy transfer between Kr atoms and highly vibrationally excited, rotationally cold phenanthrene and diphenylacetylene in the triplet state was investigated using crossed-beam/time-of-flight mass spectrometer/time-sliced velocity map ion imaging techniques. Compared to the energy transfer between naphthalene and Kr, energy transfer between phenanthrene and Kr shows a larger cross-section for vibrational to translational (V → T) energy transfer, a smaller cross-section for translational to vibrational and rotational (T → VR) energy transfer, and more energy transferred from vibration to translation. These differences are further enlarged in the comparison between naphthalene and diphenylacetylene. In addition, less complex formation and significant increases in the large V → T energy transfer probabilities, termed supercollisions in diphenylacetylene and Kr collisions were observed. The differences in the energy transfer between these highly vibrationally excited molecules are attributed to the low-frequency vibrational modes, especially those vibrations with rotation-like wide-angle motions.

Minimal Model of Quantum Kinetic Clusters for the Energy-Transfer Network of a Light-Harvesting Protein Complex.

PubMed

Wu, Jianlan; Tang, Zhoufei; Gong, Zhihao; Cao, Jianshu; Mukamel, Shaul

2015-04-02

The energy absorbed in a light-harvesting protein complex is often transferred collectively through aggregated chromophore clusters. For population evolution of chromophores, the time-integrated effective rate matrix allows us to construct quantum kinetic clusters quantitatively and determine the reduced cluster-cluster transfer rates systematically, thus defining a minimal model of energy-transfer kinetics. For Fenna-Matthews-Olson (FMO) and light-havrvesting complex II (LCHII) monomers, quantum Markovian kinetics of clusters can accurately reproduce the overall energy-transfer process in the long-time scale. The dominant energy-transfer pathways are identified in the picture of aggregated clusters. The chromophores distributed extensively in various clusters can assist a fast and long-range energy transfer.

A Proposed Time Transfer Experiment Between the USA and the South Pacific

DTIC Science & Technology

1991-12-01

1 nanosecond, The corrected position will be traris~nitted by both the time transfer modem and the existing TV line sync dissemination process...communications satellite (AUSSAT K1) (Figure 5), With after-the- fact ephemeris correction , this is useful to the 20 nanosecond level. The second...spheric corrections will ultimately reduce ephemeris related time transfer errors to the 1 nanosecond level. The corrected position will be transmitted

Signal Delay Stability of a Ku-Band Two-Way Satellite Time Transfer Terminal

NASA Technical Reports Server (NTRS)

Kirchner, Dieter; Robnik, R.

1996-01-01

A fully automated two-way time and frequency transfer (TWSTFT) system including a satellite simulator, which allows the user to carry out signal delay measurements in conjunction with each time transfer measurement, is operated at the Technical University of Graz (TUG). After a brief description of the system, results obtained during fifteen months of operation are presented and discussed. Finally, envisaged experiments are mentioned.

31 CFR 363.203 - After I purchase my marketable Treasury security in TreasuryDirect ®, is there a period of time...

Code of Federal Regulations, 2012 CFR

2012-07-01

... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the security? Once you purchase a marketable Treasury security in TreasuryDirect, you may not transfer that...

31 CFR 363.203 - After I purchase my marketable Treasury security in TreasuryDirect ®, is there a period of time...

Code of Federal Regulations, 2014 CFR

2014-07-01

... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the security? Once you purchase a marketable Treasury security in TreasuryDirect, you may not transfer that...

31 CFR 363.203 - After I purchase my marketable Treasury security in TreasuryDirect ®, is there a period of time...

Code of Federal Regulations, 2011 CFR

2011-07-01

... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the security? Once you purchase a marketable Treasury security in TreasuryDirect, you may not transfer that...

31 CFR 363.203 - After I purchase my marketable Treasury security in TreasuryDirect ®, is there a period of time...

Code of Federal Regulations, 2010 CFR

2010-07-01

... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the security? Once you purchase a marketable Treasury security in TreasuryDirect, you may not transfer that...

31 CFR 363.203 - After I purchase my marketable Treasury security in TreasuryDirect ®, is there a period of time...

Code of Federal Regulations, 2013 CFR

2013-07-01

... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the... Treasury security in TreasuryDirect ®, is there a period of time during which I may not transfer the security? Once you purchase a marketable Treasury security in TreasuryDirect, you may not transfer that...

Time-transfer experiments between satellite laser ranging ground stations via one-way laser ranging to the Lunar Reconnaissance Orbiter

NASA Astrophysics Data System (ADS)

Mao, D.; Sun, X.; Skillman, D. R.; Mcgarry, J.; Hoffman, E.; Neumann, G. A.; Torrence, M. H.; Smith, D. E.; Zuber, M. T.

2014-12-01

Satellite laser ranging (SLR) has long been used to measure the distance from a ground station to an Earth-orbiting satellite in order to determine the spacecraft position in orbit, and to conduct other geodetic measurements such as plate motions. This technique can also be used to transfer time between the station and satellite, and between remote SLR sites, as recently demonstrated by the Time Transfer by Laser Link (T2L2) project by the Centre National d'Etudes Spatiaes (CNES) and Observatorire de la Cote d'Azur (OCA) as well as the Laser Time Transfer (LTT) project by the Shanghai Astronomical Observatory, where two-way and one-way measurements were obtained at the same time. Here we report a new technique to transfer time between distant SLR stations via simultaneous one-way laser ranging (LR) to the Lunar Reconnaissance Orbiter (LRO) spacecraft at lunar distance. The major objectives are to establish accurate ground station times and to improve LRO orbit determination via these measurements. The results of these simultaneous LR measurements are used to compare the SLR station times or transfer time from one to the other using times-of-flight estimated from conventional radio frequency tracking of LRO. The accuracy of the time transfer depends only on the difference of the times-of-flight from each ground station to the spacecraft, and is expected to be at sub-nano second level. The technique has been validated by both a ground-based experiment and an experiment that utilized LRO. Here we present the results to show that sub-nanosecond precision and accuracy are achievable. Both experiments were carried out between the primary LRO-LR station, The Next Generation Satellite Laser Ranging (NGSLR) station, and its nearby station, Mobile Laser System (MOBLAS-7), both at Greenbelt, Maryland. The laser transmit time from both stations were recorded by the same event timer referenced to a Hydrogen maser. The results have been compared to data from a common All-View GPS, and showed < 1 nanosecond precision and accuracy over 6 months. Time transfer experiments between NGSLR and McDonald Observatory SLR station at Fort Davis, Texas have also been conducted and analysis of the data will be presented.

5 CFR 1600.33 - Treatment accorded transferred funds.

Code of Federal Regulations, 2011 CFR

2011-01-01

...'s contribution allocation on file at the time the transfer is completed. (c) Funds transferred to... 5 Administrative Personnel 3 2011-01-01 2011-01-01 false Treatment accorded transferred funds... CONTRIBUTION ELECTIONS, CONTRIBUTION ALLOCATIONS, AND AUTOMATIC ENROLLMENT PROGRAM Transfers From Other...

5 CFR 1600.32 - Treatment accorded transferred funds.

Code of Federal Regulations, 2013 CFR

2013-01-01

...'s contribution allocation on file at the time the transfer is completed. (c) Funds transferred to... 5 Administrative Personnel 3 2013-01-01 2013-01-01 false Treatment accorded transferred funds... CONTRIBUTION ELECTIONS, CONTRIBUTION ALLOCATIONS, AND AUTOMATIC ENROLLMENT PROGRAM Transfers From Other...

5 CFR 1600.33 - Treatment accorded transferred funds.

Code of Federal Regulations, 2012 CFR

2012-01-01

...'s contribution allocation on file at the time the transfer is completed. (c) Funds transferred to... 5 Administrative Personnel 3 2012-01-01 2012-01-01 false Treatment accorded transferred funds... CONTRIBUTION ELECTIONS, CONTRIBUTION ALLOCATIONS, AND AUTOMATIC ENROLLMENT PROGRAM Transfers From Other...

5 CFR 1600.32 - Treatment accorded transferred funds.

Code of Federal Regulations, 2014 CFR

2014-01-01

...'s contribution allocation on file at the time the transfer is completed. (c) Funds transferred to... 5 Administrative Personnel 3 2014-01-01 2014-01-01 false Treatment accorded transferred funds... CONTRIBUTION ELECTIONS, CONTRIBUTION ALLOCATIONS, AND AUTOMATIC ENROLLMENT PROGRAM Transfers From Other...

Tendon transfer to reconstruct wrist extension in children with obstetric brachial plexus palsy.

PubMed

Al-Qattan, M M

2003-04-01

This study reports on 20 children with obstetric brachial plexus palsy who underwent a tendon transfer to reconstruct wrist extension. The mean age at the time of tendon transfer was 8 years. There were seven patients with Erb's palsy and the remaining 13 had total palsy. The flexor carpi ulnaris was utilized 15 times and the flexor carpi radialis five times. The transferred tendon was sutured to the tendon of the extensor carpi radialis brevis. The result of the transfer was assessed according to a modified Medical Research Council (MRC) muscle grading system. A good result was obtained in 18 patients (modified MRC grade of 4) and a fair result (modified MRC grade of 3) in two. The choice of tendon transfer to reconstruct the wrist drop deformity in various conditions including adult traumatic brachial plexus injuries is discussed.

Simultaneous Heat and Mass Transfer Model for Convective Drying of Building Material

NASA Astrophysics Data System (ADS)

Upadhyay, Ashwani; Chandramohan, V. P.

2018-04-01

A mathematical model of simultaneous heat and moisture transfer is developed for convective drying of building material. A rectangular brick is considered for sample object. Finite-difference method with semi-implicit scheme is used for solving the transient governing heat and mass transfer equation. Convective boundary condition is used, as the product is exposed in hot air. The heat and mass transfer equations are coupled through diffusion coefficient which is assumed as the function of temperature of the product. Set of algebraic equations are generated through space and time discretization. The discretized algebraic equations are solved by Gauss-Siedel method via iteration. Grid and time independent studies are performed for finding the optimum number of nodal points and time steps respectively. A MATLAB computer code is developed to solve the heat and mass transfer equations simultaneously. Transient heat and mass transfer simulations are performed to find the temperature and moisture distribution inside the brick.

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2004-12-01

325-332. [15] D. Kirchner, 1999, “Two Way Satellite Time and Frequency Transfer ( TWSTFT ),” Review of Radio Science (Oxford Science Publications...Time and Frequency Transfer ( TWSTFT ),” in Proceedings of the 36th Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting, 7-9

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2005-01-01

Naval Observatory, Washington, D.C.), pp. 325-332. [15] D. Kirchner, 1999, “Two Way Satellite Time and Frequency Transfer ( TWSTFT ),” Review of...of Carrier- Phase-Based Two-Way Satellite Time and Frequency Transfer ( TWSTFT ),” in Proceedings of the 36th Annual Precise Time and Time Interval

On the physics of electron transfer (drift) in the substance: about the reason of “abnormal” fast transfer of electrons in the plasma of tokamak and at known Bohm’s diffusion

NASA Astrophysics Data System (ADS)

Boriev, I. A.

2018-03-01

An analysis of the problem of so-called “abnormal” fast transfer of electrons in tokamak plasma, which turned out much faster than the result of accepted calculation, is given. Such transfer of hot electrons leads to unexpectedly fast destruction of the inner tokamak wall with ejection of its matter in plasma volume, what violates a condition of plasma confinement for controlled thermonuclear fusion. It is shown, taking into account real physics of electron drift in the gas (plasma) and using the conservation law for momentum of electron transfer (drift), that the drift velocity of elastically scattered electrons should be significantly greater than that of accepted calculation. The reason is that the relaxation time of the momentum of electron transfer, to which the electron drift velocity is proportional, is significantly greater (from 16 up to 4 times) than the electron free path time. Therefore, generally accepted replacement of the relaxation time, which is unknown a priori, by the electron free path time, leads to significant (16 times for thermal electrons) underestimation of electron drift velocity (mobility). This result means, that transfer of elastically (and isotropically) scattered electrons in the gas phase should be so fast, and corresponds to multiplying coefficient (16), introduced by D. Bohm to explain the observed by him “abnormal” fast diffusion of electrons.

Thunder-induced ground motions: 1. Observations

NASA Astrophysics Data System (ADS)

Lin, Ting-L.; Langston, Charles A.

2009-04-01

Acoustic pressure from thunder and its induced ground motions were investigated using a small array consisting of five three-component short-period surface seismometers, a three-component borehole seismometer, and five infrasound microphones. We used the array to constrain wave parameters of the incident acoustic and seismic waves. The incident slowness differences between acoustic pressure and ground motions suggest that ground reverberations were first initiated somewhat away from the array. Using slowness inferred from ground motions is preferable to obtain the seismic source parameters. We propose a source equalization procedure for acoustic/seismic deconvolution to generate the time domain transfer function, a procedure similar to that of obtaining teleseismic earthquake receiver functions. The time domain transfer function removes the incident pressure time history from the seismogram. An additional vertical-to-radial ground motion transfer function was used to identify the Rayleigh wave propagation mode of induced seismic waves complementing that found using the particle motions and amplitude variations in the borehole. The initial motions obtained by the time domain transfer functions suggest a low Poisson's ratio for the near-surface layer. The acoustic-to-seismic transfer functions show a consistent reverberation series at frequencies near 5 Hz. This gives an empirical measure of site resonance that depends on the ratio of the layer velocity to layer thickness for earthquake P and S waves. The time domain transfer function approach by transferring a spectral division into the time domain provides an alternative method for studying acoustic-to-seismic coupling.

OPTRAN- OPTIMAL LOW THRUST ORBIT TRANSFERS

NASA Technical Reports Server (NTRS)

Breakwell, J. V.

1994-01-01

OPTRAN is a collection of programs that solve the problem of optimal low thrust orbit transfers between non-coplanar circular orbits for spacecraft with chemical propulsion systems. The programs are set up to find Hohmann-type solutions, with burns near the perigee and apogee of the transfer orbit. They will solve both fairly long burn-arc transfers and "divided-burn" transfers. Program modeling includes a spherical earth gravity model and propulsion system models for either constant thrust or constant acceleration. The solutions obtained are optimal with respect to fuel use: i.e., final mass of the spacecraft is maximized with respect to the controls. The controls are the direction of thrust and the thrust on/off times. Two basic types of programs are provided in OPTRAN. The first type is for "exact solution" which results in complete, exact tkme-histories. The exact spacecraft position, velocity, and optimal thrust direction are given throughout the maneuver, as are the optimal thrust switch points, the transfer time, and the fuel costs. Exact solution programs are provided in two versions for non-coplanar transfers and in a fast version for coplanar transfers. The second basic type is for "approximate solutions" which results in approximate information on the transfer time and fuel costs. The approximate solution is used to estimate initial conditions for the exact solution. It can be used in divided-burn transfers to find the best number of burns with respect to time. The approximate solution is useful by itself in relatively efficient, short burn-arc transfers. These programs are written in FORTRAN 77 for batch execution and have been implemented on a DEC VAX series computer with the largest program having a central memory requirement of approximately 54K of 8 bit bytes. The OPTRAN program were developed in 1983.

Simultaneously precise frequency transfer and time synchronization using feed-forward compensation technique via 120 km fiber link.

PubMed

Chen, Xing; Lu, Jinlong; Cui, Yifan; Zhang, Jian; Lu, Xing; Tian, Xusheng; Ci, Cheng; Liu, Bo; Wu, Hong; Tang, Tingsong; Shi, Kebin; Zhang, Zhigang

2015-12-22

Precision time synchronization between two remote sites is desired in many applications such as global positioning satellite systems, long-baseline interferometry, coherent radar detection and fundamental physics constant measurements. The recently developed frequency dissemination technologies based on optical fiber link have improved the transfer instability to the level of 10(-19)/day at remote location. Therefore it is possible to keep clock oscillation at remote locations continuously corrected, or to reproduce a "virtual" clock on the remote location. However the initial alignment and the correction of 1 pps timing signal from time to time are still required, besides the highly stabilized clock frequency transfer between distant locations. Here we demonstrate a time synchronization based on an ultra-stable frequency transfer system via 120-km commercial fiber link by transferring an optical frequency comb. Both the phase noise compensation in frequency dissemination and temporal basis alignment in time synchronization were implemented by a feed-forward digital compensation (FFDC) technique. The fractional frequency instability was measured to be 6.18 × 10(-20) at 2000 s. The timing deviation of time synchronization was measured to be 0.6 ps in 1500 s. This technique also can be applied in multi-node fiber network topology.

Simultaneously precise frequency transfer and time synchronization using feed-forward compensation technique via 120 km fiber link

PubMed Central

Chen, Xing; Lu, Jinlong; Cui, Yifan; Zhang, Jian; Lu, Xing; Tian, Xusheng; Ci, Cheng; Liu, Bo; Wu, Hong; Tang, Tingsong; Shi, Kebin; Zhang, Zhigang

2015-01-01

Precision time synchronization between two remote sites is desired in many applications such as global positioning satellite systems, long-baseline interferometry, coherent radar detection and fundamental physics constant measurements. The recently developed frequency dissemination technologies based on optical fiber link have improved the transfer instability to the level of 10−19/day at remote location. Therefore it is possible to keep clock oscillation at remote locations continuously corrected, or to reproduce a “virtual” clock on the remote location. However the initial alignment and the correction of 1 pps timing signal from time to time are still required, besides the highly stabilized clock frequency transfer between distant locations. Here we demonstrate a time synchronization based on an ultra-stable frequency transfer system via 120-km commercial fiber link by transferring an optical frequency comb. Both the phase noise compensation in frequency dissemination and temporal basis alignment in time synchronization were implemented by a feed-forward digital compensation (FFDC) technique. The fractional frequency instability was measured to be 6.18 × 10−20 at 2000 s. The timing deviation of time synchronization was measured to be 0.6 ps in 1500 s. This technique also can be applied in multi-node fiber network topology. PMID:26691731

Effect of the timing of the first cleavage on the developmental potential of nuclear-transferred mouse oocytes receiving embryonic stem cells.

PubMed

Kobayashi, T; Kato, Y; Tsunoda, Y

2004-09-01

The present study examined whether the timing of the first cleavage has an effect on the in vitro and in vivo developmental potential of nuclear-transferred mouse oocytes receiving embryonic stem cells. First, the timing of the first cleavage and the developmental potential of nuclear-transferred oocytes were examined every hour from 12 to 24 h after the start of culture and compared with in vitro-fertilized oocytes. The developmental potential of in vitro-fertilized oocytes decreased gradually according to the time required for cleavage (84% (32/38) for 15 h to 50% (1/2) for 20 h), but intermediate-cleaved (15-16 h) nuclear-transferred oocytes had a higher potential to develop into blastocysts (55% (17/31) to 67% (45/67) versus 0-43% (6/14)]. Second the nuclear-transferred oocytes were divided into three groups according to the timing of the first cleavage; each group was cultured to blastocysts in vitro, and then transferred to recipients. The potential of intermediate-cleaved oocytes (15-16 h) to develop into blastocysts was significantly higher than fast-cleaved (before 15 h) and slow-cleaved (after 16 h) oocytes (65, 46, and 37%). The proportion of fetuses on Day 10.5 of pregnancy was highest in the intermediate-cleaved group (4 versus 2 and 1%, respectively) and a full-term fetus was obtained from this group. The present study demonstrated that the timing of the first cleavage could be used to determine the potential of nuclear-transferred oocytes with embryonic stem cells to develop to the blastocyst stage in vitro, but not to determine post-implantation viability after transfer to recipients.

Effects of Transferring to the Rehabilitation Ward on Long-Term Mortality Rate of First-Time Stroke Survivors: A Population-Based Study.

PubMed

Chen, Chien-Min; Yang, Yao-Hsu; Chang, Chia-Hao; Chen, Pau-Chung

2017-12-01

To assess the long-term health outcomes of acute stroke survivors transferred to the rehabilitation ward. Long-term mortality rates of first-time stroke survivors during hospitalization were compared among the following sets of patients: patients transferred to the rehabilitation ward, patients receiving rehabilitation without being transferred to the rehabilitation ward, and patients receiving no rehabilitation. Retrospective cohort study. Patients (N = 11,419) with stroke from 2005 to 2008 were initially assessed for eligibility. After propensity score matching, 390 first-time stroke survivors were included. None. Cox proportional hazards regression model was used to assess differences in 5-year poststroke mortality rates. Based on adjusted hazard ratios (HRs), the patients receiving rehabilitation without being transferred to the rehabilitation ward (adjusted HR, 2.20; 95% confidence interval [CI], 1.36-3.57) and patients receiving no rehabilitation (adjusted HR, 4.00; 95% CI, 2.55-6.27) had significantly higher mortality risk than the patients transferred to the rehabilitation ward. Mortality rate of the stroke survivors was affected by age ≥65 years (compared with age <45y; adjusted HR, 3.62), being a man (adjusted HR, 1.49), having ischemic stroke (adjusted HR, 1.55), stroke severity (Stroke Severity Index [SSI] score≥20, compared with SSI score<10; adjusted HR, 2.68), and comorbidity (Charlson-Deyo Comorbidity Index [CCI] score≥3, compared with CCI score=0; adjusted HR, 4.23). First-time stroke survivors transferred to the rehabilitation ward had a 5-year mortality rate 2.2 times lower than those who received rehabilitation without transfer to the rehabilitation ward and 4 times lower than those who received no rehabilitation. Copyright © 2016 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

Applying Toyota Production System principles to a psychiatric hospital: making transfers safer and more timely.

PubMed

Young, John Q; Wachter, Robert M

2009-09-01

Health care organizations have increasingly embraced industrial methods, such as the Toyota Production System (TPS), to improve quality, safety, timeliness, and efficiency. However, the use of such methods in psychiatric hospitals has been limited. A psychiatric hospital applied TPS principles to patient transfers to the outpatient medication management clinics (MMCs) from all other inpatient and outpatient services within the hospital's system. Sources of error and delay were identified, and a new process was designed to improve timely access (measured by elapsed time from request for transfer to scheduling of an appointment and to the actual visit) and patient safety by decreasing communication errors (measured by number of failed transfers). Complexity was substantially reduced, with one streamlined pathway replacing five distinct and more complicated pathways. To assess sustainability, the postintervention period was divided into Period 1 (first 12 months) and Period 2 (next 24 months). Time required to process the transfer and schedule the first appointment was reduced by 74.1% in Period 1 (p < .001) and by an additional 52.7% in Period 2 (p < .0001) for an overall reduction of 87% (p < .0001). Similarly, time to the actual appointment was reduced 31.2% in Period 1 (p < .0001), but was stable in Period 2 (p = .48). The number of transfers per month successfully processed and scheduled increased 95% in the postintervention period compared with the pre-implementation period (p = .015). Finally, data for failed transfers were only available for the postintervention period, and the rate decreased 89% in Period 2 compared with Period 1 (p = .017). The application of TPS principles enhanced access and safety through marked and sustained improvements in the transfer process's timeliness and reliability. Almost all transfer processes have now been standardized.

Precise and continuous time and frequency synchronisation at the 5×10⁻¹⁹ accuracy level.

PubMed

Wang, B; Gao, C; Chen, W L; Miao, J; Zhu, X; Bai, Y; Zhang, J W; Feng, Y Y; Li, T C; Wang, L J

2012-01-01

The synchronisation of time and frequency between remote locations is crucial for many important applications. Conventional time and frequency dissemination often makes use of satellite links. Recently, the communication fibre network has become an attractive option for long-distance time and frequency dissemination. Here, we demonstrate accurate frequency transfer and time synchronisation via an 80 km fibre link between Tsinghua University (THU) and the National Institute of Metrology of China (NIM). Using a 9.1 GHz microwave modulation and a timing signal carried by two continuous-wave lasers and transferred across the same 80 km urban fibre link, frequency transfer stability at the level of 5×10⁻¹⁹/day was achieved. Time synchronisation at the 50 ps precision level was also demonstrated. The system is reliable and has operated continuously for several months. We further discuss the feasibility of using such frequency and time transfer over 1000 km and its applications to long-baseline radio astronomy.

Precise and Continuous Time and Frequency Synchronisation at the 5×10-19 Accuracy Level

PubMed Central

Wang, B.; Gao, C.; Chen, W. L.; Miao, J.; Zhu, X.; Bai, Y.; Zhang, J. W.; Feng, Y. Y.; Li, T. C.; Wang, L. J.

2012-01-01

The synchronisation of time and frequency between remote locations is crucial for many important applications. Conventional time and frequency dissemination often makes use of satellite links. Recently, the communication fibre network has become an attractive option for long-distance time and frequency dissemination. Here, we demonstrate accurate frequency transfer and time synchronisation via an 80 km fibre link between Tsinghua University (THU) and the National Institute of Metrology of China (NIM). Using a 9.1 GHz microwave modulation and a timing signal carried by two continuous-wave lasers and transferred across the same 80 km urban fibre link, frequency transfer stability at the level of 5×10−19/day was achieved. Time synchronisation at the 50 ps precision level was also demonstrated. The system is reliable and has operated continuously for several months. We further discuss the feasibility of using such frequency and time transfer over 1000 km and its applications to long-baseline radio astronomy. PMID:22870385

Time-fixed rendezvous by impulse factoring with an intermediate timing constraint. [for transfer orbits

NASA Technical Reports Server (NTRS)

Green, R. N.; Kibler, J. F.; Young, G. R.

1974-01-01

A method is presented for factoring a two-impulse orbital transfer into a three- or four-impulse transfer which solves the rendezvous problem and satisfies an intermediate timing constraint. Both the time of rendezvous and the intermediate time of a alinement are formulated as any element of a finite sequence of times. These times are integer multiples of a constant plus an additive constant. The rendezvous condition is an equality constraint, whereas the intermediate alinement is an inequality constraint. The two timing constraints are satisfied by factoring the impulses into collinear parts that vectorially sum to the original impulse and by varying the resultant period differences and the number of revolutions in each orbit. Five different types of solutions arise by considering factoring either or both of the two impulses into two or three parts with a limit for four total impulses. The impulse-factoring technique may be applied to any two-impulse transfer which has distinct orbital periods.

Modeling and Assessment of Precise Time Transfer by Using BeiDou Navigation Satellite System Triple-Frequency Signals.

PubMed

Tu, Rui; Zhang, Pengfei; Zhang, Rui; Liu, Jinhai; Lu, Xiaochun

2018-03-29

This study proposes two models for precise time transfer using the BeiDou Navigation Satellite System triple-frequency signals: ionosphere-free (IF) combined precise point positioning (PPP) model with two dual-frequency combinations (IF-PPP1) and ionosphere-free combined PPP model with a single triple-frequency combination (IF-PPP2). A dataset with a short baseline (with a common external time frequency) and a long baseline are used for performance assessments. The results show that IF-PPP1 and IF-PPP2 models can both be used for precise time transfer using BeiDou Navigation Satellite System (BDS) triple-frequency signals, and the accuracy and stability of time transfer is the same in both cases, except for a constant system bias caused by the hardware delay of different frequencies, which can be removed by the parameter estimation and prediction with long time datasets or by a priori calibration.

Light-Cone Effect of Radiation Fields in Cosmological Radiative Transfer Simulations

NASA Astrophysics Data System (ADS)

Ahn, Kyungjin

2015-02-01

We present a novel method to implement time-delayed propagation of radiation fields in cosmo-logical radiative transfer simulations. Time-delayed propagation of radiation fields requires construction of retarded-time fields by tracking the location and lifetime of radiation sources along the corresponding light-cones. Cosmological radiative transfer simulations have, until now, ignored this "light-cone effect" or implemented ray-tracing methods that are computationally demanding. We show that radiative trans-fer calculation of the time-delayed fields can be easily achieved in numerical simulations when periodic boundary conditions are used, by calculating the time-discretized retarded-time Green's function using the Fast Fourier Transform (FFT) method and convolving it with the source distribution. We also present a direct application of this method to the long-range radiation field of Lyman-Werner band photons, which is important in the high-redshift astrophysics with first stars.

Conditional Cash Transfers and School Dropout Rates

ERIC Educational Resources Information Center

Dearden, Lorraine; Emmerson, Carl; Frayne, Christine; Meghir, Costas

2009-01-01

This paper evaluates a United Kingdom pilot study designed to test whether a means-tested conditional cash transfer paid to 16- to 18-year-olds for staying in full-time education is an effective way of reducing the proportion of school dropouts. The transfer's impact is substantial: In the first year, full-time education participation rates…

33 CFR 127.317 - Declaration of inspection.

Code of Federal Regulations, 2014 CFR

2014-07-01

... handling LNG; (2) The date and time that transfer operations begin; (3) A list of the requirements in § 127... operations and the date and time of signing, indicating that he or she is ready to begin transfer operations... inspection. (a) After the preliminary transfer inspection under § 127.315 has been satisfactorily completed...

26 CFR 26.6081-1 - Automatic extension of time for filing generation-skipping transfer tax returns.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 26 Internal Revenue 14 2011-04-01 2010-04-01 true Automatic extension of time for filing generation-skipping transfer tax returns. 26.6081-1 Section 26.6081-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) ESTATE AND GIFT TAXES GENERATION-SKIPPING TRANSFER TAX...

33 CFR 127.317 - Declaration of inspection.

Code of Federal Regulations, 2011 CFR

2011-07-01

... handling LNG; (2) The date and time that transfer operations begin; (3) A list of the requirements in § 127... operations and the date and time of signing, indicating that he or she is ready to begin transfer operations... inspection. (a) After the preliminary transfer inspection under § 127.315 has been satisfactorily completed...

26 CFR 26.6081-1 - Automatic extension of time for filing generation-skipping transfer tax returns.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 26 Internal Revenue 14 2010-04-01 2010-04-01 false Automatic extension of time for filing generation-skipping transfer tax returns. 26.6081-1 Section 26.6081-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) ESTATE AND GIFT TAXES GENERATION-SKIPPING TRANSFER TAX...

26 CFR 26.6081-1 - Automatic extension of time for filing generation-skipping transfer tax returns.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 26 Internal Revenue 14 2013-04-01 2013-04-01 false Automatic extension of time for filing generation-skipping transfer tax returns. 26.6081-1 Section 26.6081-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) ESTATE AND GIFT TAXES GENERATION-SKIPPING TRANSFER TAX...

33 CFR 127.317 - Declaration of inspection.

Code of Federal Regulations, 2012 CFR

2012-07-01

... handling LNG; (2) The date and time that transfer operations begin; (3) A list of the requirements in § 127... operations and the date and time of signing, indicating that he or she is ready to begin transfer operations... inspection. (a) After the preliminary transfer inspection under § 127.315 has been satisfactorily completed...

33 CFR 127.317 - Declaration of inspection.

Code of Federal Regulations, 2013 CFR

2013-07-01

... handling LNG; (2) The date and time that transfer operations begin; (3) A list of the requirements in § 127... operations and the date and time of signing, indicating that he or she is ready to begin transfer operations... inspection. (a) After the preliminary transfer inspection under § 127.315 has been satisfactorily completed...

26 CFR 26.6081-1 - Automatic extension of time for filing generation-skipping transfer tax returns.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 26 Internal Revenue 14 2014-04-01 2013-04-01 true Automatic extension of time for filing generation-skipping transfer tax returns. 26.6081-1 Section 26.6081-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) ESTATE AND GIFT TAXES GENERATION-SKIPPING TRANSFER TAX...

26 CFR 26.6081-1 - Automatic extension of time for filing generation-skipping transfer tax returns.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 26 Internal Revenue 14 2012-04-01 2012-04-01 false Automatic extension of time for filing generation-skipping transfer tax returns. 26.6081-1 Section 26.6081-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) ESTATE AND GIFT TAXES GENERATION-SKIPPING TRANSFER TAX...

33 CFR 127.317 - Declaration of inspection.

Code of Federal Regulations, 2010 CFR

2010-07-01

... handling LNG; (2) The date and time that transfer operations begin; (3) A list of the requirements in § 127... operations and the date and time of signing, indicating that he or she is ready to begin transfer operations... inspection. (a) After the preliminary transfer inspection under § 127.315 has been satisfactorily completed...

Abort Options for Human Missions to Earth-Moon Halo Orbits

NASA Technical Reports Server (NTRS)

Jesick, Mark C.

2013-01-01

Abort trajectories are optimized for human halo orbit missions about the translunar libration point (L2), with an emphasis on the use of free return trajectories. Optimal transfers from outbound free returns to L2 halo orbits are numerically optimized in the four-body ephemeris model. Circumlunar free returns are used for direct transfers, and cislunar free returns are used in combination with lunar gravity assists to reduce propulsive requirements. Trends in orbit insertion cost and flight time are documented across the southern L2 halo family as a function of halo orbit position and free return flight time. It is determined that the maximum amplitude southern halo incurs the lowest orbit insertion cost for direct transfers but the maximum cost for lunar gravity assist transfers. The minimum amplitude halo is the most expensive destination for direct transfers but the least expensive for lunar gravity assist transfers. The on-orbit abort costs for three halos are computed as a function of abort time and return time. Finally, an architecture analysis is performed to determine launch and on-orbit vehicle requirements for halo orbit missions.

Time and Frequency Activities at The U.S. Naval Observatory

DTIC Science & Technology

2011-01-01

TWSTFT ) The most accurate means of operational long-distance time transfer is generally believed to be TWSTT [15-18], although the most precise...Frequency Transfer ( TWSTFT ),” Review of Radio Science (Oxford Science Publications), pp. 27-44. [16] L. A. Breakiron, A. L. Smith, B. C. Fonville...Matsakis, L. Breakiron, A. Bauch, D. Piester, D., and Z. Jiang, 2009, “Two-Way Satellite Time and Frequency ( TWSTFT ) Transfer Calibration Constancy from

41 CFR 102-36.135 - How much time do we have to pick up excess personal property that has been approved for transfer?

Code of Federal Regulations, 2012 CFR

2012-01-01

... Excess Personal Property For Our Agency Processing Transfers § 102-36.135 How much time do we have to... 41 Public Contracts and Property Management 3 2012-01-01 2012-01-01 false How much time do we have to pick up excess personal property that has been approved for transfer? 102-36.135 Section 102-36...

41 CFR 102-36.135 - How much time do we have to pick up excess personal property that has been approved for transfer?

Code of Federal Regulations, 2011 CFR

2011-01-01

... Excess Personal Property For Our Agency Processing Transfers § 102-36.135 How much time do we have to... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false How much time do we have to pick up excess personal property that has been approved for transfer? 102-36.135 Section 102-36...

41 CFR 102-36.135 - How much time do we have to pick up excess personal property that has been approved for transfer?

Code of Federal Regulations, 2010 CFR

2010-07-01

... Excess Personal Property For Our Agency Processing Transfers § 102-36.135 How much time do we have to... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false How much time do we have to pick up excess personal property that has been approved for transfer? 102-36.135 Section 102-36...

41 CFR 102-36.135 - How much time do we have to pick up excess personal property that has been approved for transfer?

Code of Federal Regulations, 2014 CFR

2014-01-01

... Excess Personal Property For Our Agency Processing Transfers § 102-36.135 How much time do we have to... 41 Public Contracts and Property Management 3 2014-01-01 2014-01-01 false How much time do we have to pick up excess personal property that has been approved for transfer? 102-36.135 Section 102-36...

26 CFR 1.684-3 - Exceptions to general rule of gain recognition.

Code of Federal Regulations, 2013 CFR

2013-04-01

... to 400X to FT. At the time of the transfer, FT has a U.S. beneficiary within the meaning of § 1.679-2... not cause A to recognize gain at the time of the transfer. See § 1.684-2(e) for rules that may require... gain at that time under § 1.684-1. Example 4. Transfer of property for fair market value to an...

26 CFR 1.684-3 - Exceptions to general rule of gain recognition.

Code of Federal Regulations, 2012 CFR

2012-04-01

... to 400X to FT. At the time of the transfer, FT has a U.S. beneficiary within the meaning of § 1.679-2... not cause A to recognize gain at the time of the transfer. See § 1.684-2(e) for rules that may require... gain at that time under § 1.684-1. Example 4. Transfer of property for fair market value to an...

41 CFR 102-36.135 - How much time do we have to pick up excess personal property that has been approved for transfer?

Code of Federal Regulations, 2013 CFR

2013-07-01

... Excess Personal Property For Our Agency Processing Transfers § 102-36.135 How much time do we have to... 41 Public Contracts and Property Management 3 2013-07-01 2013-07-01 false How much time do we have to pick up excess personal property that has been approved for transfer? 102-36.135 Section 102-36...

Infrared laser driven double proton transfer. An optimal control theory study

NASA Astrophysics Data System (ADS)

Abdel-Latif, Mahmoud K.; Kühn, Oliver

2010-02-01

Laser control of ultrafast double proton transfer is investigated for a two-dimensional model system describing stepwise and concerted transfer pathways. The pulse design has been done by employing optimal control theory in combination with the multiconfiguration time-dependent Hartree wave packet propagation. The obtained laser fields correspond to multiple pump-dump pulse sequences. Special emphasis is paid to the relative importance of stepwise and concerted transfer pathways for the driven wave packet and its dependence on the parameters of the model Hamiltonian as well as on the propagation time. While stepwise transfer is dominating in all cases considered, for high barrier systems concerted transfer proceeding via tunneling can make a contribution.

High-order solution methods for grey discrete ordinates thermal radiative transfer

DOE Office of Scientific and Technical Information (OSTI.GOV)

Maginot, Peter G., E-mail: maginot1@llnl.gov; Ragusa, Jean C., E-mail: jean.ragusa@tamu.edu; Morel, Jim E., E-mail: morel@tamu.edu

This work presents a solution methodology for solving the grey radiative transfer equations that is both spatially and temporally more accurate than the canonical radiative transfer solution technique of linear discontinuous finite element discretization in space with implicit Euler integration in time. We solve the grey radiative transfer equations by fully converging the nonlinear temperature dependence of the material specific heat, material opacities, and Planck function. The grey radiative transfer equations are discretized in space using arbitrary-order self-lumping discontinuous finite elements and integrated in time with arbitrary-order diagonally implicit Runge–Kutta time integration techniques. Iterative convergence of the radiation equation ismore » accelerated using a modified interior penalty diffusion operator to precondition the full discrete ordinates transport operator.« less

High-order solution methods for grey discrete ordinates thermal radiative transfer

DOE Office of Scientific and Technical Information (OSTI.GOV)

Maginot, Peter G.; Ragusa, Jean C.; Morel, Jim E.

This paper presents a solution methodology for solving the grey radiative transfer equations that is both spatially and temporally more accurate than the canonical radiative transfer solution technique of linear discontinuous finite element discretization in space with implicit Euler integration in time. We solve the grey radiative transfer equations by fully converging the nonlinear temperature dependence of the material specific heat, material opacities, and Planck function. The grey radiative transfer equations are discretized in space using arbitrary-order self-lumping discontinuous finite elements and integrated in time with arbitrary-order diagonally implicit Runge–Kutta time integration techniques. Iterative convergence of the radiation equation ismore » accelerated using a modified interior penalty diffusion operator to precondition the full discrete ordinates transport operator.« less

High-order solution methods for grey discrete ordinates thermal radiative transfer

DOE PAGES

Maginot, Peter G.; Ragusa, Jean C.; Morel, Jim E.

2016-09-29

This paper presents a solution methodology for solving the grey radiative transfer equations that is both spatially and temporally more accurate than the canonical radiative transfer solution technique of linear discontinuous finite element discretization in space with implicit Euler integration in time. We solve the grey radiative transfer equations by fully converging the nonlinear temperature dependence of the material specific heat, material opacities, and Planck function. The grey radiative transfer equations are discretized in space using arbitrary-order self-lumping discontinuous finite elements and integrated in time with arbitrary-order diagonally implicit Runge–Kutta time integration techniques. Iterative convergence of the radiation equation ismore » accelerated using a modified interior penalty diffusion operator to precondition the full discrete ordinates transport operator.« less

Quantum transfer energy in the framework of time-dependent dipole-dipole interaction

NASA Astrophysics Data System (ADS)

El-Shishtawy, Reda M.; Haddon, Robert C.; Al-Heniti, Saleh H.; Raffah, Bahaaudin M.; Berrada, K.; Abdel-Khalek, S.; Al-Hadeethi, Yas F.

2018-03-01

In this work, we examine the process of the quantum transfer of energy considering time-dependent dipole-dipole interaction in a dimer system characterized by two-level atom systems. By taking into account the effect of the acceleration and speed of the atoms in the dimer coupling, we demonstrate that the improvement of the probability for a single-excitation transfer energy extremely benefits from the incorporation of atomic motion effectiveness and the energy detuning. We explore the relevance between the population and entanglement during the time-evolution and show that this kind of nonlocal correlation may be generated during the process of the transfer of energy. Our work may provide optimal conditions to implement realistic experimental scenario in the transfer of the quantum energy.

Software engineering technology transfer: Understanding the process

NASA Technical Reports Server (NTRS)

Zelkowitz, Marvin V.

1993-01-01

Technology transfer is of crucial concern to both government and industry today. In this report, the mechanisms developed by NASA to transfer technology are explored and the actual mechanisms used to transfer software development technologies are investigated. Time, cost, and effectiveness of software engineering technology transfer is reported.

Transfer buffer containing methanol can be reused multiple times in protein electrotransfer.

PubMed

Pettegrew, Colin J; Jayini, Renuka; Islam, M Rafiq

2009-04-01

We investigated the feasibility of repeated use of transfer buffer containing methanol in electrotransfer of proteins from sodium dodecyl sulfate-polyacrylamide gels to polyvinylidene difluoride (PVDF) membrane using a prestained protein marker of broad molecular sizes. Transfer of the antitumor protein p53 in HEK293T cell extracts, using fresh and used transfer buffer, followed by detection with anti-p53 antibody was also performed to test detectability in immunoblot. Results from these experiments indicate that the transfer buffer can be reused at least five times and maintain a similar extent of protein transfer to PVDF membrane. Repeated use of the transfer buffer containing methanol will significantly reduce the volume of hazardous waste generated and its disposal cost as well as its adverse effect on environment.

Human motor transfer is determined by the scaling of size and accuracy of movement.

PubMed

Kwon, Oh-Sang; Zelaznik, Howard N; Chiu, George; Pizlo, Zygmunt

2011-01-01

A transfer of training design was used to examine the role of the Index of Difficulty (ID) on transfer of learning in a sequential Fitts's law task. Specifically, the role of the ratio between the accuracy and size of movement (ID) in transfer was examined. Transfer of skilled movement is better when both the size and accuracy of movement are changed by the same factor (ID is constant) than when only size or accuracy is changed. The authors infer that the size-accuracy ratio is capturing the control strategies employed during practice and thus promotes efficient transfer. Furthermore, efficient transfer is not dependent on maintaining relative timing invariance and thus the authors provide further evidence that relative timing is not an essential feature of movement control.

Proceedings of the Sixteenth Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting

NASA Technical Reports Server (NTRS)

1984-01-01

The effects of ionospheric and tropospheric propagation on time and frequency transfer, advances in the generation of precise time and frequency, time transfer techniques and filtering and modeling were among the topics emphasized. Rubidium and cesium frequency standard, crystal oscillators, masers, Kalman filters, and atomic clocks were discussed.

Steering UTC (AOS) and UTC (PL) by TA (PL)

DTIC Science & Technology

2007-01-01

UTC. • A second time-transfer technique ( TWSTFT ) will be introduced at AOS. 38th Annual Precise Time and Time Interval (PTTI) Meeting 387 • AOS will...Deviation TWSTFT – Two-Way Satellite Time and Frequency Transfer UTC – Coordinated Universal Time UTC (i) – Realization of UTC by laboratory i

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2007-01-01

Time and Frequency Transfer ( TWSTFT ),” Review of Radio Science (Oxford Science Publications), pp. 27-44. 14 38th Annual Precise Time and Time Interval...Fonville, D. Matsakis, W. Shäfer, and A. Pawlitzki, 2005, “Development of Carrier- Phase-Based Two-Way Satellite Time and Frequency Transfer ( TWSTFT

Precise GPS ephemerides from DMA and NGS tested by time transfer

NASA Technical Reports Server (NTRS)

Lewandowski, Wlodzimierz W.; Petit, Gerard; Thomas, Claudine

1992-01-01

It was shown that the use of the Defense Mapping Agency's (DMA) precise ephemerides brings a significant improvement to the accuracy of GPS time transfer. At present a new set of precise ephemerides produced by the National Geodetic Survey (NGS) has been made available to the timing community. This study demonstrates that both types of precise ephemerides improve long-distance GPS time transfer and remove the effects of Selective Availability (SA) degradation of broadcast ephemerides. The issue of overcoming SA is also discussed in terms of the routine availability of precise ephemerides.

Multisensory perceptual learning of temporal order: audiovisual learning transfers to vision but not audition.

PubMed

Alais, David; Cass, John

2010-06-23

An outstanding question in sensory neuroscience is whether the perceived timing of events is mediated by a central supra-modal timing mechanism, or multiple modality-specific systems. We use a perceptual learning paradigm to address this question. Three groups were trained daily for 10 sessions on an auditory, a visual or a combined audiovisual temporal order judgment (TOJ). Groups were pre-tested on a range TOJ tasks within and between their group modality prior to learning so that transfer of any learning from the trained task could be measured by post-testing other tasks. Robust TOJ learning (reduced temporal order discrimination thresholds) occurred for all groups, although auditory learning (dichotic 500/2000 Hz tones) was slightly weaker than visual learning (lateralised grating patches). Crossmodal TOJs also displayed robust learning. Post-testing revealed that improvements in temporal resolution acquired during visual learning transferred within modality to other retinotopic locations and orientations, but not to auditory or crossmodal tasks. Auditory learning did not transfer to visual or crossmodal tasks, and neither did it transfer within audition to another frequency pair. In an interesting asymmetry, crossmodal learning transferred to all visual tasks but not to auditory tasks. Finally, in all conditions, learning to make TOJs for stimulus onsets did not transfer at all to discriminating temporal offsets. These data present a complex picture of timing processes. The lack of transfer between unimodal groups indicates no central supramodal timing process for this task; however, the audiovisual-to-visual transfer cannot be explained without some form of sensory interaction. We propose that auditory learning occurred in frequency-tuned processes in the periphery, precluding interactions with more central visual and audiovisual timing processes. Functionally the patterns of featural transfer suggest that perceptual learning of temporal order may be optimised to object-centered rather than viewer-centered constraints.

75 FR 38579 - Self-Regulatory Organizations; National Securities Clearing Corporation; Notice of Filing of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-07-02

... To Enhance the Process for Transfers Through the Automated Customer Account Transfer Service June 25... NSCC's process for transfers through the Automated Customer Account Transfer Service (``ACATS''). II... services and to effect customer account transfers within specified time frames. \\4\\ CNS is an ongoing...

40 CFR 60.4160 - Submission of Hg allowance transfers.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Times for Coal-Fired Electric Steam Generating Units Hg Allowance Transfers § 60.4160 Submission of Hg allowance transfers. An Hg authorized account representative seeking recordation of a Hg allowance transfer... 40 Protection of Environment 6 2010-07-01 2010-07-01 false Submission of Hg allowance transfers...

5 CFR 351.302 - Transfer of employees.

Code of Federal Regulations, 2011 CFR

2011-01-01

... is not identified with an operating function specifically authorized at the time of transfer to... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Transfer of employees. 351.302 Section... FORCE Transfer of Function § 351.302 Transfer of employees. (a) Before a reduction in force is made in...

12 CFR 1005.34 - Procedures for cancellation and refund of remittance transfers.

Code of Federal Regulations, 2014 CFR

2014-01-01

... recipient. (b) Time limits and refund requirements. A remittance transfer provider shall refund, at no... remittance transfers. 1005.34 Section 1005.34 Banks and Banking BUREAU OF CONSUMER FINANCIAL PROTECTION ELECTRONIC FUND TRANSFERS (REGULATION E) Requirements for Remittance Transfers § 1005.34 Procedures for...

33 CFR 156.115 - Person in charge: Limitations.

Code of Federal Regulations, 2011 CFR

2011-07-01

... transfer operations on more than one vessel at a time during transfers between vessels or between two or... (CONTINUED) POLLUTION OIL AND HAZARDOUS MATERIAL TRANSFER OPERATIONS Oil and Hazardous Material Transfer... charge of both a vessel and a facility during transfer operations unless authorized by the COTP. [CGD 75...

33 CFR 156.115 - Person in charge: Limitations.

Code of Federal Regulations, 2012 CFR

2012-07-01

... transfer operations on more than one vessel at a time during transfers between vessels or between two or... (CONTINUED) POLLUTION OIL AND HAZARDOUS MATERIAL TRANSFER OPERATIONS Oil and Hazardous Material Transfer... charge of both a vessel and a facility during transfer operations unless authorized by the COTP. [CGD 75...

A Methodology for Determining the Transferability Rate of Courses

ERIC Educational Resources Information Center

Perez-Vergara, Kelly; Orlowski, Martin

2015-01-01

For transfer students, the transfer of credit between institutions creates a barrier to graduation as students' time and money is ultimately wasted when courses do not successfully transfer as credit applicable toward degree requirements at the receiving institution. Understanding the extent to which courses at your institution transfer to other…

33 CFR 156.115 - Person in charge: Limitations.

Code of Federal Regulations, 2010 CFR

2010-07-01

... transfer operations on more than one vessel at a time during transfers between vessels or between two or... (CONTINUED) POLLUTION OIL AND HAZARDOUS MATERIAL TRANSFER OPERATIONS Oil and Hazardous Material Transfer... charge of both a vessel and a facility during transfer operations unless authorized by the COTP. [CGD 75...

33 CFR 156.115 - Person in charge: Limitations.

Code of Federal Regulations, 2013 CFR

2013-07-01

... transfer operations on more than one vessel at a time during transfers between vessels or between two or... (CONTINUED) POLLUTION OIL AND HAZARDOUS MATERIAL TRANSFER OPERATIONS Oil and Hazardous Material Transfer... charge of both a vessel and a facility during transfer operations unless authorized by the COTP. [CGD 75...

40 CFR 60.4160 - Submission of Hg allowance transfers.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Times for Coal-Fired Electric Steam Generating Units Hg Allowance Transfers § 60.4160 Submission of Hg allowance transfers. An Hg authorized account representative seeking recordation of a Hg allowance transfer... 40 Protection of Environment 6 2011-07-01 2011-07-01 false Submission of Hg allowance transfers...

33 CFR 156.115 - Person in charge: Limitations.

Code of Federal Regulations, 2014 CFR

2014-07-01

... transfer operations on more than one vessel at a time during transfers between vessels or between two or... (CONTINUED) POLLUTION OIL AND HAZARDOUS MATERIAL TRANSFER OPERATIONS Oil and Hazardous Material Transfer... charge of both a vessel and a facility during transfer operations unless authorized by the COTP. [CGD 75...

12 CFR 1005.34 - Procedures for cancellation and refund of remittance transfers.

Code of Federal Regulations, 2013 CFR

2013-01-01

... recipient. (b) Time limits and refund requirements. A remittance transfer provider shall refund, at no... remittance transfers. 1005.34 Section 1005.34 Banks and Banking BUREAU OF CONSUMER FINANCIAL PROTECTION ELECTRONIC FUND TRANSFERS (REGULATION E) Requirements for Remittance Transfers § 1005.34 Procedures for...

17 CFR 190.06 - Transfers.

Code of Federal Regulations, 2011 CFR

2011-04-01

... transfer is made fails to respond within a reasonable time to a margin call for the difference between the... 17 Commodity and Securities Exchanges 1 2011-04-01 2011-04-01 false Transfers. 190.06 Section 190... Transfers. (a) Transfer rules. No self-regulatory organization or clearing organization may adopt, maintain...

17 CFR 190.06 - Transfers.

Code of Federal Regulations, 2010 CFR

2010-04-01

... transfer is made fails to respond within a reasonable time to a margin call for the difference between the... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Transfers. 190.06 Section 190... Transfers. (a) Transfer rules. No self-regulatory organization or clearing organization may adopt, maintain...

5 CFR 1600.33 - Treatment accorded transferred funds.

Code of Federal Regulations, 2010 CFR

2010-01-01

... file at the time the transfer is completed. (c) Funds transferred to the TSP pursuant to §§ 1600.31 and... 5 Administrative Personnel 3 2010-01-01 2010-01-01 false Treatment accorded transferred funds... CONTRIBUTION ELECTIONS AND CONTRIBUTION ALLOCATIONS Transfers From Other Qualified Retirement Plans § 1600.33...

5 CFR 351.302 - Transfer of employees.

Code of Federal Regulations, 2010 CFR

2010-01-01

... is not identified with an operating function specifically authorized at the time of transfer to... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Transfer of employees. 351.302 Section... FORCE Transfer of Function § 351.302 Transfer of employees. (a) Before a reduction in force is made in...

5 CFR 351.302 - Transfer of employees.

Code of Federal Regulations, 2012 CFR

2012-01-01

... is not identified with an operating function specifically authorized at the time of transfer to... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Transfer of employees. 351.302 Section... FORCE Transfer of Function § 351.302 Transfer of employees. (a) Before a reduction in force is made in...

5 CFR 351.302 - Transfer of employees.

Code of Federal Regulations, 2014 CFR

2014-01-01

... is not identified with an operating function specifically authorized at the time of transfer to... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Transfer of employees. 351.302 Section... FORCE Transfer of Function § 351.302 Transfer of employees. (a) Before a reduction in force is made in...

5 CFR 351.302 - Transfer of employees.

Code of Federal Regulations, 2013 CFR

2013-01-01

... is not identified with an operating function specifically authorized at the time of transfer to... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Transfer of employees. 351.302 Section... FORCE Transfer of Function § 351.302 Transfer of employees. (a) Before a reduction in force is made in...

Prediction and uncertainty in human Pavlovian to instrumental transfer.

PubMed

Trick, Leanne; Hogarth, Lee; Duka, Theodora

2011-05-01

Attentional capture and behavioral control by conditioned stimuli have been dissociated in animals. The current study assessed this dissociation in humans. Participants were trained on a Pavlovian schedule in which 3 visual stimuli, A, B, and C, predicted the occurrence of an aversive noise with 90%, 50%, or 10% probability, respectively. Participants then went on to separate instrumental training in which a key-press response canceled the aversive noise with a .5 probability on a variable interval schedule. Finally, in the transfer phase, the 3 Pavlovian stimuli were presented in this instrumental schedule and were no longer differentially predictive of the outcome. Observing times and gaze dwell time indexed attention to these stimuli in both training and transfer. Aware participants acquired veridical outcome expectancies in training--that is, A > B > C, and these expectancies persisted into transfer. Most important, the transfer effect accorded with these expectancies, A > B > C. By contrast, observing times accorded with uncertainty--that is, they showed B > A = C during training, and B < A = C in the transfer phase. Dwell time bias supported this association between attention and uncertainty, although these data showed a slightly more complicated pattern. Overall, the study suggests that transfer is linked to outcome prediction and is dissociated from attention to conditioned stimuli, which is linked to outcome uncertainty.

The use of precise ephemerides, ionospheric data, and corrected antenna coordinates in a long-distance GPS time transfer

NASA Technical Reports Server (NTRS)

Lewandowski, Wlodzimierz W.; Petit, Gerard; Thomas, Claudine; Weiss, Marc A.

1990-01-01

Over intercontinental distances, the accuracy of The Global Positioning System (GPS) time transfers ranges from 10 to 20 ns. The principal error sources are the broadcast ionospheric model, the broadcast ephemerides and the local antenna coordinates. For the first time, the three major error sources for GPS time transfer can be reduced simultaneously for a particular time link. Ionospheric measurement systems of the National Institute of Standards and Technology (NIST) type are now operating on a regular basis at the National Institute of Standards and Technology in Boulder and at the Paris Observatory in Paris. Broadcast ephemerides are currently recorded for time-transfer tracks between these sites, this being necessary for using precise ephemerides. At last, corrected local GPS antenna coordinates are now introduced in GPS receivers at both sites. Shown here is the improvement in precision for this long-distance time comparison resulting from the reduction of these three error sources.

Few-femtosecond-resolution characterization and suppression of excess timing jitter and drift in indoor atmospheric frequency comb transfer.

PubMed

Kang, Jinho; Shin, Junho; Kim, Chur; Jung, Kwangyun; Park, Suhyeon; Kim, Jungwon

2014-10-20

We characterize the timing jitter spectral density of the time-of-flight (TOF) in the indoor atmospheric transfer of optical pulse train over 10 decades of Fourier frequency range (10 μHz - 100 kHz) with sub-100-as resolution using a balanced optical cross-correlator (BOC). Based on the well-known theory for atmospheric transfer of a laser beam, we could fit the measured timing jitter power spectral density to the theory and analyze it with a fairly good agreement from 20 mHz to 10 Hz Fourier frequency range. Moreover, we demonstrate that the BOC-based timing stabilization method can suppress the excess fluctuations in timing from >200 fs (rms) to 2.6 fs (rms) maintained over 130 hours when an optical pulse train is transferred over a 76.2-m long free-space beam path in laboratory environment. The demonstrated stabilization result corresponds to 4 × 10(-20) overlapping Allan deviation at 117,000 s averaging time.

Improved GPS-based time link calibration involving ROA and PTB.

PubMed

Esteban, Héctor; Palacio, Juan; Galindo, Francisco Javier; Feldmann, Thorsten; Bauch, Andreas; Piester, Dirk

2010-03-01

The calibration of time transfer links is mandatory in the context of international collaboration for the realization of International Atomic Time. In this paper, we present the results of the calibration of the GPS time transfer link between the Real Instituto y Observatorio de la Armada (ROA) and the Physikalisch-Technische Bundesanstalt (PTB) by means of a traveling geodetic-type GPS receiver and an evaluation of the achieved type A and B uncertainty. The time transfer results were achieved by using CA, P3, and also carrier phase PPP comparison techniques. We finally use these results to re-calibrate the two-way satellite time and frequency transfer (TWSTFT) link between ROA and PTB, using one month of data. We show that a TWSTFT link can be calibrated by means of GPS time comparisons with an uncertainty below 2 ns, and that potentially even sub-nanosecond uncertainty can be achieved. This is a novel and cost-effective approach compared with the more common calibration using a traveling TWSTFT station.

Two-Way Time Transfer to Airborne Platforms Using Commercial Satellite Modems

DTIC Science & Technology

2002-12-01

on Relativistic Time Transfer . 34th Annual Precise Time and Time Interval (PTTI) Meeting 366 QUESTIONS AND ANSWERS DAVE HOWE (National...Symposium on Frequency Control, 31 May-2 June 1989, Denver, Colorado, USA (IEEE Publication 89CH2690-6), pp. 174-178. [5] R. A. Nelson, 2002, Handbook

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2007-11-01

Institute of Navigation, Alexandria, Virginia). [21] D. Kirchner, 1999, “Two Way Satellite Time and Frequency Transfer ( TWSTFT ),” Review of Radio Science...Transfer ( TWSTFT ),” in Proceedings of the 36th Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting, 7-9 December 2004

National performance on door-in to door-out time among patients transferred for primary percutaneous coronary intervention.

PubMed

Herrin, Jeph; Miller, Lauren E; Turkmani, Dima F; Nsa, Wato; Drye, Elizabeth E; Bernheim, Susannah M; Ling, Shari M; Rapp, Michael T; Han, Lein F; Bratzler, Dale W; Bradley, Elizabeth H; Nallamothu, Brahmajee K; Ting, Henry H; Krumholz, Harlan M

2011-11-28

Delays in treatment time are commonplace for patients with ST-segment elevation acute myocardial infarction who must be transferred to another hospital for percutaneous coronary intervention. Experts have recommended that door-in to door-out (DIDO) time (ie, time from arrival at the first hospital to transfer from that hospital to the percutaneous coronary intervention hospital) should not exceed 30 minutes. We sought to describe national performance in DIDO time using a new measure developed by the Centers for Medicare & Medicaid Services. We report national median DIDO time and examine associations with patient characteristics (age, sex, race, contraindication to fibrinolytic therapy, and arrival time) and hospital characteristics (number of beds, geographic region, location [rural or urban], and number of cases reported) using a mixed effects multivariable model. Among 13,776 included patients from 1034 hospitals, only 1343 (9.7%) had a DIDO time within 30 minutes, and DIDO exceeded 90 minutes for 4267 patients (31.0%). Mean estimated times (95% CI) to transfer based on multivariable analysis were 8.9 (5.6-12.2) minutes longer for women, 9.1 (2.7-16.0) minutes longer for African Americans, 6.9 (1.6-11.9) minutes longer for patients with contraindication to fibrinolytic therapy, shorter for all age categories (except >75 years) relative to the category of 18 to 35 years, 15.3 (7.3-23.5) minutes longer for rural hospitals, and 14.4 (6.6-21.3) minutes longer for hospitals with 9 or fewer transfers vs 15 or more in 2009 (all P < .001). Among patients presenting to emergency departments and requiring transfer to another facility for percutaneous coronary intervention, the DIDO time rarely met the recommended 30 minutes.

National Performance on Door-In to Door-Out Time Among Patients Transferred for Primary Percutaneous Coronary Intervention

PubMed Central

Herrin, Jeph; Miller, Lauren E.; Turkmani, Dima F.; Nsa, Wato; Drye, Elizabeth E.; Bernheim, Susannah M.; Ling, Shari M.; Rapp, Michael T.; Han, Lein F.; Bratzler, Dale W.; Bradley, Elizabeth H.; Nallamothu, Brahmajee K.; Ting, Henry H.; Krumholz, Harlan M.

2015-01-01

Background Delays in treatment time are commonplace for patients with ST-segment elevation acute myocardial infarction who must be transferred to another hospital for per-cutaneous coronary intervention. Experts have recommended that door-in to door-out (DIDO) time(ie, time from arrival at the first hospital to transfer from that hospital to the percutaneous coronary intervention hospital) should not exceed 30 minutes. We sought to describe national performance in DIDO time using a new measure developed by the Centers for Medicare & Medicaid Services. Methods We report national median DIDO time and examine associations with patient characteristics (age, sex, race, contraindication to fibrinolytic therapy, and arrival time) and hospital characteristics (number of beds, geographic region, location [rural or urban], and number of cases reported) using a mixed effects multivariable model. Results Among 13 776 included patients from 1034 hospitals, only 1343 (9.7%) had a DIDO time within 30 minutes, and DIDO exceeded 90 minutes for 4267 patients (31.0%). Mean estimated times (95% CI) to transfer based on multivariable analysis were 8.9 (5.6-12.2) minutes longer for women, 9.1 (2.7-16.0) minutes longer for African Americans, 6.9 (1.6-11.9) minutes longer for patients with contraindication to fibrinolytic therapy, shorter for all age categories (except >75 years) relative to the category of 18 to 35 years, 15.3 (7.3-23.5) minutes longer for rural hospitals, and 14.4 (6.6-21.3) minutes longer for hospitals with 9 or fewer transfers vs 15 or more in 2009 (all P<.001). Conclusion Among patients presenting to emergency departments and requiring transfer to another facility for percutaneous coronary intervention, the DIDO time rarely met the recommended 30 minutes. PMID:22123793

A daily huddle facilitates patient transports from a neonatal intensive care unit

PubMed Central

Hughes Driscoll, Colleen; El Metwally, Dina

2014-01-01

To improve hospital access for expectant women and newborns in the state of Maryland, a quality improvement team reviewed the patient flow characteristics of our neonatal intensive care unit. We identified inefficiencies in patient discharges, including delays in patient transports. Several patient transport delays were caused by late preparation and delivery of the patient transfer summary. Baseline data collection revealed that transfer summaries were prepared on-time by the resident or nurse practitioner only 41% of the time on average, while the same transfer summaries were signed on-time by the neonatologist 5% of the time on average. Our aim was to improve the rate of on-time transfer summaries to 50% over a four month time period. We performed two PDSA cycles based on feedback from our quality improvement team. In the first cycle, we instituted a daily huddle to increase opportunities for communication about patient transports. In the second cycle, we increased computer access for residents and nurse practitioners preparing the transfer summaries. The on-time summary preparation by residents/nurse practitioners improved to an average of 72% over a nine month period. The same summaries were signed on-time by a neonatologist 26% of the time on average over a nine month period. In conclusion, institution of a daily huddle combined with augmented computer resources significantly increased the percentage of on-time transfer summaries. Current data show a trend toward improved ability to accept patient referrals. Further data collection and analysis is needed to determine the impact of these interventions on access to hospital care for expectant women and newborns in our state. PMID:26734275

Time Transfer Through Optical Fibers (TTTOF): First Results of Calibrated Clock Comparisons

DTIC Science & Technology

2009-11-01

satellite time and frequency transfer ( TWSTFT ) scheme. We discuss procedures for a proper calibration of such time transfer through optical fibers links... TWSTFT ground stations, which are currently spread over the PTB campus, to a common location at a Report Documentation Page Form ApprovedOMB No. 0704...PTTI) Meeting 90 new site (see Figure 1 and [6] for details). From late 2010 onwards, the TWSTFT stations will be installed on top of a high

Baccalaureate Time-to-Degree for Montana University System Two-Year College Transfer Students

ERIC Educational Resources Information Center

Gallagher, Thomas Patrick

2017-01-01

Two-year college transfer education has been promoted as a cost-effective path for achieving the baccalaureate, but increased time-to-degree could nullify this assumption. The Montana University System (MUS) recently expanded the mission for its two-year college system by adding the transfer function. This non-experimental quantitative research…

Migration of Undergraduate First-Time Transfers: Snapshot Analysis 2006-2008

ERIC Educational Resources Information Center

South Carolina Commission on Higher Education, 2010

2010-01-01

The Commission on Higher Education had a student intern from USC-Columbia initiate an analysis of data on the migration of undergraduate first-time transfers to compare trends, growth, and proportions of transfers to and from various sectors and institution types over a three-year period, from 2006-2008. Staff have refined the analysis and…

Time to delivery: Transfers for threatened preterm labour and prelabour rupture of membranes in Western Australia.

PubMed

Hollingworth, Jade; Pietsch, Rachel; Epee-Bekima, Mathias; Nathan, Elizabeth

2018-02-01

To describe the outcomes of patients transferred to King Edward Memorial Hospital (KEMH) with signs of labour at preterm gestations. A retrospective observational study of the 69 cases transferred to KEMH during 2015. Patient transfers from all locations across Western Australia (WA) to the sole tertiary perinatal centre in Perth. Pregnant women within WA with threatened or actual preterm labour (PTL) or preterm prelabour rupture of membranes (PPROM) between 23 and 32 weeks gestation. The occurrence of delivery during the admission and time-to-delivery as well as length of admission and association between clinical factors and time-to-delivery. The percentage of the study population delivered during the admission following transfer was 72.5%. Eighty-six per cent of those who delivered did so within 72 hours of transfer. The median time from transfer to delivery was 1 day. Sixty-three per cent of those who did not deliver during the admission progressed to 36 weeks gestation. Patients transferred with PPROM were less likely to deliver during the admission compared to those with uterine activity (50% versus 19.6%, P = 0.007) and nulliparas were more likely to deliver (93.5% versus 55.3%, P < 0.001). The majority of women transferred with signs of PTL progress to delivery during the same admission with the highest risk of delivery being the first 72 hours following transfer. If the pregnancy is ongoing at 72 hours, there is a reasonable chance of progression to late preterm gestation supporting the return of woman to their place of origin for antenatal care following discharge. © 2017 National Rural Health Alliance Inc.

Transfer Function Identification Using Orthogonal Fourier Transform Modeling Functions

NASA Technical Reports Server (NTRS)

Morelli, Eugene A.

2013-01-01

A method for transfer function identification, including both model structure determination and parameter estimation, was developed and demonstrated. The approach uses orthogonal modeling functions generated from frequency domain data obtained by Fourier transformation of time series data. The method was applied to simulation data to identify continuous-time transfer function models and unsteady aerodynamic models. Model fit error, estimated model parameters, and the associated uncertainties were used to show the effectiveness of the method for identifying accurate transfer function models from noisy data.

On the potential of Galileo E5 for time transfer.

PubMed

Martínez-Belda, Mari Carmen; Defraigne, Pascale; Bruyninx, Carine

2013-01-01

The main global navigation satellite systems (GNSS) technique currently used for accurate time and frequency transfer is based on an analysis of the ionosphere-free combinations of dual-frequency code and carrier phase measurements in a precise point positioning (PPP) mode. This technique analyses the observations of one GNSS station using external products for satellite clocks and orbits to determine the position and clock synchronization errors of this station. The frequency stability of this time transfer is limited by the noise and multipath of the Global Positioning System (GPS) and Globalnaya Navigatsionnaya Sputnikovaya Sistema (GLONASS) codes. In the near future, Galileo will offer a broadband signal E5, with low noise in the centimeter range and with the lowest multipath error ever observed. This paper investigates new analysis procedures based on the E5 codeplus- carrier (CPC) combination for time transfer. The CPC combination with E5 provides a noise level 10 times lower than the ionosphere-free combination of Galileo E1 and E5, which is very promising for improving GNSS time transfer performances. From some tests with simulated Galileo data, it is shown here that the use of the CPC combination with E5 does not improve, at present, the medium- and long-term stability of time transfer with respect to the ionosphere-free combination of Galileo E1 and E5 codes, because of the need for a second frequency signal to correct for the ionospheric delays and ambiguities.

Optimal transfers between unstable periodic orbits using invariant manifolds

NASA Astrophysics Data System (ADS)

Davis, Kathryn E.; Anderson, Rodney L.; Scheeres, Daniel J.; Born, George H.

2011-03-01

This paper presents a method to construct optimal transfers between unstable periodic orbits of differing energies using invariant manifolds. The transfers constructed in this method asymptotically depart the initial orbit on a trajectory contained within the unstable manifold of the initial orbit and later, asymptotically arrive at the final orbit on a trajectory contained within the stable manifold of the final orbit. Primer vector theory is applied to a transfer to determine the optimal maneuvers required to create the bridging trajectory that connects the unstable and stable manifold trajectories. Transfers are constructed between unstable periodic orbits in the Sun-Earth, Earth-Moon, and Jupiter-Europa three-body systems. Multiple solutions are found between the same initial and final orbits, where certain solutions retrace interior portions of the trajectory. All transfers created satisfy the conditions for optimality. The costs of transfers constructed using manifolds are compared to the costs of transfers constructed without the use of manifolds. In all cases, the total cost of the transfer is significantly lower when invariant manifolds are used in the transfer construction. In many cases, the transfers that employ invariant manifolds are three times more efficient, in terms of fuel expenditure, than the transfer that do not. The decrease in transfer cost is accompanied by an increase in transfer time of flight.

U-Th and 10Be constraints on sediment recycling in proglacial settings, Lago Buenos Aires, Patagonia

NASA Astrophysics Data System (ADS)

Cogez, Antoine; Herman, Frédéric; Pelt, Éric; Reuschlé, Thierry; Morvan, Gilles; Darvill, Christopher M.; Norton, Kevin P.; Christl, Marcus; Märki, Lena; Chabaux, François

2018-03-01

The estimation of sediment transfer times remains a challenge to our understanding of sediment budgets and the relationships between erosion and climate. Uranium (U) and thorium (Th) isotope disequilibria offer a means of more robustly constraining sediment transfer times. Here, we present new uranium and thorium disequilibrium data for a series of nested moraines around Lago Buenos Aires in Argentine Patagonia. The glacial chronology for the area is constrained using in situ cosmogenic 10Be analysis of glacial outwash. Sediment transfer times within the periglacial domain were estimated by comparing the deposition ages of moraines to the theoretical age of sediment production, i.e., the comminution age inferred from U disequilibrium data and recoil loss factor estimates. Our data show first that the classical comminution age approach must include weathering processes accounted for by measuring Th disequilibrium. Second, our combined data suggest that the pre-deposition history of the moraine sediments is not negligible, as evidenced by the large disequilibrium of the youngest moraines despite the equilibrium of the corresponding glacial flour. Monte Carlo simulations suggest that weathering was more intense before the deposition of the moraines and that the transfer time of the fine sediments to the moraines was on the order of 100-200 kyr. Long transfer times could result from a combination of long sediment residence times in the proglacial lake (recurrence time of a glacial cycle) and the remobilization of sediments from moraines deposited during previous glacial cycles. 10Be data suggest that some glacial cycles are absent from the preserved moraine record (seemingly every second cycle), supporting a model of reworking moraines and/or fluctuations in the extent of glacial advances. The chronological pattern is consistent with the U-Th disequilibrium data and the 100-200 kyr transfer time. This long transfer time raises the question of the proportion of freshly eroded sediments that escape (or not) the proglacial environments during glacial periods.

Backward transfer entropy: Informational measure for detecting hidden Markov models and its interpretations in thermodynamics, gambling and causality

PubMed Central

Ito, Sosuke

2016-01-01

The transfer entropy is a well-established measure of information flow, which quantifies directed influence between two stochastic time series and has been shown to be useful in a variety fields of science. Here we introduce the transfer entropy of the backward time series called the backward transfer entropy, and show that the backward transfer entropy quantifies how far it is from dynamics to a hidden Markov model. Furthermore, we discuss physical interpretations of the backward transfer entropy in completely different settings of thermodynamics for information processing and the gambling with side information. In both settings of thermodynamics and the gambling, the backward transfer entropy characterizes a possible loss of some benefit, where the conventional transfer entropy characterizes a possible benefit. Our result implies the deep connection between thermodynamics and the gambling in the presence of information flow, and that the backward transfer entropy would be useful as a novel measure of information flow in nonequilibrium thermodynamics, biochemical sciences, economics and statistics. PMID:27833120

Transference interventions and the process between therapist and patient.

PubMed

Ulberg, Randi; Amlo, Svein; Critchfield, Kenneth L; Marble, Alice; Høglend, Per

2014-06-01

Interpreting the transference has been considered a core ingredient in psychodynamic psychotherapy. The effects of analyzing the transference are probably dependent on certain characteristics of the interventions themselves and the context in which transference interventions are given. The present study describes the development and use of a therapy process rating scale (Transference Work Scale; TWS) constructed to identify, categorize, and explore work with the transference. TWS has subscales that rate timing, content, and valence of the transference interventions, as well as response from the patient. Transcribed segments (10 min) from 51 different patients were scored with TWS by 2 independent raters. The interrater agreement on the TWS items was good to excellent. Clinical examples of transference work were also rated using the Structural Analysis of Social Behavior (SASB). TWS and SASB supplement each other. TWS might be a potentially useful tool to explore the interaction of timing, category, and valence of transference work in predicting in-session patient response as well as treatment outcome. (c) 2014 APA, all rights reserved.

Backward transfer entropy: Informational measure for detecting hidden Markov models and its interpretations in thermodynamics, gambling and causality

NASA Astrophysics Data System (ADS)

Ito, Sosuke

2016-11-01

The transfer entropy is a well-established measure of information flow, which quantifies directed influence between two stochastic time series and has been shown to be useful in a variety fields of science. Here we introduce the transfer entropy of the backward time series called the backward transfer entropy, and show that the backward transfer entropy quantifies how far it is from dynamics to a hidden Markov model. Furthermore, we discuss physical interpretations of the backward transfer entropy in completely different settings of thermodynamics for information processing and the gambling with side information. In both settings of thermodynamics and the gambling, the backward transfer entropy characterizes a possible loss of some benefit, where the conventional transfer entropy characterizes a possible benefit. Our result implies the deep connection between thermodynamics and the gambling in the presence of information flow, and that the backward transfer entropy would be useful as a novel measure of information flow in nonequilibrium thermodynamics, biochemical sciences, economics and statistics.

A novel methodology to characterize interfacility transfer strategies in a trauma transfer network.

PubMed

Gomez, David; Haas, Barbara; Larsen, Kristian; Alali, Aziz S; MacDonald, Russell D; Singh, Jeffrey M; Tien, Homer; Iwashyna, Theodore J; Rubenfeld, Gordon; Nathens, Avery B

2016-10-01

More than half of severely injured patients are initially transported from the scene of injury to nontrauma centers (NTCs), with many requiring subsequent transfer to trauma center (TC) care. Definitive care in the setting of severe injury is time sensitive. However, transferring severely injured patients from an NTC is a complex process often fraught with delays. Selection of the receiving TC and the mode of interfacility transport both strongly influence total transfer time and are highly amenable to quality improvement initiatives. We analyzed transfer strategies, defined as the pairing of a destination and mode of transport (land vs. rotary wing vs. fixed wing), for severely injured adult patients. Existing transfer strategies at each NTC were derived from trauma registry data. Geographic Information Systems network analysis was used to identify the strategy that minimized transfer times the most as well as alternate strategies (+15 or +30 minutes) for each NTC. Transfer network efficiency was characterized based on optimality and stability. We identified 7,702 severely injured adult patients transferred from 146 NTCs to 9 TCs. Nontrauma centers transferred severely injured patients to a median of 3 (interquartile range, 1-4) different TCs and utilized a median of 4 (interquartile range, 2-6) different transfer strategies. After allowing for the use of alternate transfer strategies, 73.1% of severely injured patients were transported using optimal/alternate strategies, and only 40.4% of NTCs transferred more than 90% of patients using an optimal/alternate transfer strategy. Three quarters (75.5%) of transfers occurred between NTCs and their most common receiving TC. More than a quarter of patients with severe traumatic injuries undergoing interfacility transport to a TC in Ontario are consistently transported using a nonoptimal combination of destination and mode of transport. Our novel analytic approach can be easily adapted to different system configurations and provides actionable data that can be provided to NTCs and other stakeholders. Therapeutic study, level IV.

43 CFR 3216.14 - What filing fees and forms does a transfer require?

Code of Federal Regulations, 2013 CFR

2013-10-01

... for three leases, submit three times the fee for “Assignment and transfer of record title or operating... 43 Public Lands: Interior 2 2013-10-01 2013-10-01 false What filing fees and forms does a transfer... LEASING Transfers § 3216.14 What filing fees and forms does a transfer require? With each transfer request...

43 CFR 3216.14 - What filing fees and forms does a transfer require?

Code of Federal Regulations, 2011 CFR

2011-10-01

... for three leases, submit three times the fee for “Assignment and transfer of record title or operating... 43 Public Lands: Interior 2 2011-10-01 2011-10-01 false What filing fees and forms does a transfer... LEASING Transfers § 3216.14 What filing fees and forms does a transfer require? With each transfer request...

43 CFR 3216.14 - What filing fees and forms does a transfer require?

Code of Federal Regulations, 2012 CFR

2012-10-01

... for three leases, submit three times the fee for “Assignment and transfer of record title or operating... 43 Public Lands: Interior 2 2012-10-01 2012-10-01 false What filing fees and forms does a transfer... LEASING Transfers § 3216.14 What filing fees and forms does a transfer require? With each transfer request...

43 CFR 3216.14 - What filing fees and forms does a transfer require?

Code of Federal Regulations, 2014 CFR

2014-10-01

... for three leases, submit three times the fee for “Assignment and transfer of record title or operating... 43 Public Lands: Interior 2 2014-10-01 2014-10-01 false What filing fees and forms does a transfer... LEASING Transfers § 3216.14 What filing fees and forms does a transfer require? With each transfer request...

The direction of bilateral transfer depends on the performance parameter.

PubMed

Pan, Zhujun; van Gemmert, Arend W A

2013-10-01

To acquire a more comprehensive understanding of the learning benefits associated with bilateral transfer and to gain knowledge of possible mechanisms behind bilateral transfer, we investigated the transfer direction of several parameters which are assumed to represent important features of movement control in a visuo-motor task. During the study, participants learned a multidirectional point-to-point drawing task in which the visual feedback was rotated 45° and the gain was increased. Performance changes of the untrained hand in movement time, trajectory length, normalized jerk, initial direction error, ratio of the primary sub-movement time to the total movement time, and the accuracy of the aiming movement after the primary sub-movement were investigated as indices of learning from bilateral transfer. The results showed that performance parameters related to the initial production of the movement, such as the initial direction, ratio of primary sub-movement to the total movement time, and movement accuracy after the primary sub-movement, only transferred to the non-dominant, while hand performance variables related to the overall outcome, such as movement duration, movement smoothness, and trajectory length, transferred in both directions. The findings of the current study support the basic principle of the "dynamic dominance model" because it is suggested that overall improvements in the non-dominant system are controlled by trajectory parameters in visuo-motor tasks, which resulted in transference of the afore mentioned production parameters to rather occur to the non-dominant hand as opposed to transference to the dominant hand. Published by Elsevier B.V.

Two way time transfer results at NRL and USNO

NASA Technical Reports Server (NTRS)

Galysh, Ivan J.; Landis, G. Paul

1993-01-01

The Naval Research Laboratory (NRL) has developed a two way time transfer modem system for the United States Naval Observatory (USNO). Two modems in conjunction with a pair of Very Small Aperture Terminal (VSAT) and a communication satellite can achieve sub nanosecond time transfer. This performance is demonstrated by the results of testing at and between NRL and USNO. The modems use Code Division Multiple Access (CDMA) methods to separate their signals through a single path in the satellite. Each modem transmitted a different Pseudo Random Noise (PRN) code and received the others PRN code. High precision time transfer is possible with two way methods because of reciprocity of many of the terms of the path and hardware delay between the two modems. The hardware description was given in a previous paper.

Time-free transfers between libration-point orbits in the elliptic restricted problem

NASA Astrophysics Data System (ADS)

Howell, K. C.; Hiday-Johnston, L. A.

This work is part of a larger research effort directed toward the formulation of a strategy to design optimal time-free impulsive transfers between three-dimensional libration-point orbits in the vicinity of the interior LI libration point of the Sun-Earth/Moon barycenter system. Inferior transfers that move a spacecraft from a large halo orbit to a smaller halo orbit are considered here. Primer vector theory is applied to non-optimal impulsive trajectories in the elliptic restricted three-body problem in order to establish whether the implementation of a coast in the initial orbit, a coast in the final orbit, or dual coasts accomplishes a reduction in fuel expenditure. The addition of interior impulses is also considered. Results indicate that a substantial savings in fuel can be achieved by the allowance for coastal periods on the specified libration-point orbits. The resulting time-free inferior transfers are compared to time-free superior transfers between halo orbits of equal z-amplitude separation.

Time-free transfers between libration-point orbits in the elliptic restricted problem

NASA Astrophysics Data System (ADS)

Howell, K. C.; Hiday, L. A.

1992-08-01

This work is directed toward the formulation of a strategy to design optimal time-free impulsive transfers between 3D libration-point orbits in the vicinity of the interior L1 libration point of the sun-earth/moon barycenter system. Inferior transfers that move a spacecraft from a large halo orbit to a smaller halo orbit are considered here. Primer vector theory is applied to nonoptimal impulsive trajectories in the elliptic restricted three-body problem in order to establish whether the implementation of a coast in the initial orbit, a coast in the final orbit, or dual coasts accomplishes a reduction in fuel expenditure. The addition of interior impulses is also considered. Results indicate that a substantial savings in fuel can be achieved by the allowance for coastal periods on the specified libration-point orbits. The resulting time-free inferior transfers are compared to time-free superior transfers between halo orbits of equal z-amplitude separation.

Heat Transfer and Fluid Transport of Supercritical CO 2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model

DOE PAGES

Zhang, Le; Luo, Feng; Xu, Ruina; ...

2014-12-31

The heat transfer and fluid transport of supercritical CO 2 in enhanced geothermal system (EGS) is studied numerically with local thermal non-equilibrium model, which accounts for the temperature difference between solid matrix and fluid components in porous media and uses two energy equations to describe heat transfer in the solid matrix and in the fluid, respectively. As compared with the previous results of our research group, the effect of local thermal non-equilibrium mainly depends on the volumetric heat transfer coefficient ah, which has a significant effect on the production temperature at reservoir outlet and thermal breakthrough time. The uniformity ofmore » volumetric heat transfer coefficient ah has little influence on the thermal breakthrough time, but the temperature difference become more obvious with time after thermal breakthrough with this simulation model. The thermal breakthrough time reduces and the effect of local thermal non-equilibrium becomes significant with decreasing ah.« less

Multiple burn fuel-optimal orbit transfers: Numerical trajectory computation and neighboring optimal feedback guidance

NASA Technical Reports Server (NTRS)

Chuang, C.-H.; Goodson, Troy D.; Ledsinger, Laura A.

1995-01-01

This report describes current work in the numerical computation of multiple burn, fuel-optimal orbit transfers and presents an analysis of the second variation for extremal multiple burn orbital transfers as well as a discussion of a guidance scheme which may be implemented for such transfers. The discussion of numerical computation focuses on the use of multivariate interpolation to aid the computation in the numerical optimization. The second variation analysis includes the development of the conditions for the examination of both fixed and free final time transfers. Evaluations for fixed final time are presented for extremal one, two, and three burn solutions of the first variation. The free final time problem is considered for an extremal two burn solution. In addition, corresponding changes of the second variation formulation over thrust arcs and coast arcs are included. The guidance scheme discussed is an implicit scheme which implements a neighboring optimal feedback guidance strategy to calculate both thrust direction and thrust on-off times.

Charge Transfer Inefficiency in Pinned Photodiode CMOS image sensors: Simple Montecarlo modeling and experimental measurement based on a pulsed storage-gate method

NASA Astrophysics Data System (ADS)

Pelamatti, Alice; Goiffon, Vincent; Chabane, Aziouz; Magnan, Pierre; Virmontois, Cédric; Saint-Pé, Olivier; de Boisanger, Michel Breart

2016-11-01

The charge transfer time represents the bottleneck in terms of temporal resolution in Pinned Photodiode (PPD) CMOS image sensors. This work focuses on the modeling and estimation of this key parameter. A simple numerical model of charge transfer in PPDs is presented. The model is based on a Montecarlo simulation and takes into account both charge diffusion in the PPD and the effect of potential obstacles along the charge transfer path. This work also presents a new experimental approach for the estimation of the charge transfer time, called pulsed Storage Gate (SG) method. This method, which allows reproduction of a ;worst-case; transfer condition, is based on dedicated SG pixel structures and is particularly suitable to compare transfer efficiency performances for different pixel geometries.

The fluorescence resonance energy transfer (FRET) gate: a time-resolved study.

PubMed

Xu, Qing-Hua; Wang, Shu; Korystov, Dmitry; Mikhailovsky, Alexander; Bazan, Guillermo C; Moses, Daniel; Heeger, Alan J

2005-01-18

The two-step energy-transfer process in a self-assembled complex comprising a cationic conjugated polymer (CCP) and a dsDNA is investigated by using pump-dump-emission spectroscopy and time-correlated single-photon counting; energy is transferred from the CCP to an ethidium bromide (EB) molecule intercalated into the dsDNA through a fluorescein molecule linked to one terminus of the DNA. Time-dependent anisotropy measurements indicate that the inefficient direct energy transfer from the CCP to the intercalated EB results from the near orthogonality of their transition moments. These measurements also show that the transition moment of the fluorescein spans a range of angular distributions and lies between that of the CCP and EB. Consequently, the fluorescein acts as a fluorescence resonance energy-transfer gate to relay the excitation energy from the CCP to the EB.

The fluorescence resonance energy transfer (FRET) gate: A time-resolved study

PubMed Central

Xu, Qing-Hua; Wang, Shu; Korystov, Dmitry; Mikhailovsky, Alexander; Bazan, Guillermo C.; Moses, Daniel; Heeger, Alan J.

2005-01-01

The two-step energy-transfer process in a self-assembled complex comprising a cationic conjugated polymer (CCP) and a dsDNA is investigated by using pump-dump-emission spectroscopy and time-correlated single-photon counting; energy is transferred from the CCP to an ethidium bromide (EB) molecule intercalated into the dsDNA through a fluorescein molecule linked to one terminus of the DNA. Time-dependent anisotropy measurements indicate that the inefficient direct energy transfer from the CCP to the intercalated EB results from the near orthogonality of their transition moments. These measurements also show that the transition moment of the fluorescein spans a range of angular distributions and lies between that of the CCP and EB. Consequently, the fluorescein acts as a fluorescence resonance energy-transfer gate to relay the excitation energy from the CCP to the EB. PMID:15642946

Radiation exposure and performance of multiple burn LEO-GEO orbit transfer trajectories

NASA Technical Reports Server (NTRS)

Gorland, S. H.

1985-01-01

Many potential strategies exist for the transfer of spacecraft from low Earth orbit (LEO) to geosynchronous (GEO) orbit. One strategy has generally been utilized, that being a single impulsive burn at perigee and a GEO insertion burn at apogee. Multiple burn strategies were discussed for orbit transfer vehicles (OTVs) but the transfer times and radiation exposure, particularly for potentially manned missions, were used as arguments against those options. Quantitative results concerning the trip time and radiation encountered by multiple burn orbit transfer missions in order to establish the feasibility of manned missions, the vulnerability of electronics, and the shielding requirements are presented. The performance of these multiple burn missions is quantified in terms of the payload and propellant variances from the minimum energy mission transfer. The missions analyzed varied from one to eight perigee burns and ranged from a high thrust, 1 g acceleration, cryogenic hydrogen-oxygen chemical prpulsion system to a continuous burn, 0.001 g acceleration, hydrogen fueled resistojet propulsion system with a trip time of 60 days.

31 CFR 306.15 - Transfers and exchanges of securities-closed periods.

Code of Federal Regulations, 2014 CFR

2014-07-01

..., may be used.) Denominational exchanges may be made at any time. Securities presented for transfer must... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false Transfers and exchanges of securities... REGULATIONS GOVERNING U.S. SECURITIES Transfers, Exchanges and Reissues § 306.15 Transfers and exchanges of...

45 CFR 2530.80 - Under what circumstances is a transfer revocable?

Code of Federal Regulations, 2012 CFR

2012-10-01

... FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.80 Under what circumstances is a transfer revocable? (a) Revocation. An individual may revoke a transfer at any time and for any... 45 Public Welfare 4 2012-10-01 2012-10-01 false Under what circumstances is a transfer revocable...

47 CFR 73.865 - Assignment and transfer of LPFM licenses.

Code of Federal Regulations, 2012 CFR

2012-10-01

... transfer an LPFM construction permit at any time. (e) Transfers of control involving a sudden change of... 47 Telecommunication 4 2012-10-01 2012-10-01 false Assignment and transfer of LPFM licenses. 73... SERVICES RADIO BROADCAST SERVICES Low Power FM Broadcast Stations (LPFM) § 73.865 Assignment and transfer...

45 CFR 2530.80 - Under what circumstances is a transfer revocable?

Code of Federal Regulations, 2010 CFR

2010-10-01

... FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.80 Under what circumstances is a transfer revocable? (a) Revocation. An individual may revoke a transfer at any time and for any... 45 Public Welfare 4 2010-10-01 2010-10-01 false Under what circumstances is a transfer revocable...

40 CFR 82.23 - Transfers of allowances of class II controlled substances.

Code of Federal Regulations, 2011 CFR

2011-07-01

... section. (2) Inter-pollutant transfers will be permitted at any time during the control period and during... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Transfers of allowances of class II... § 82.23 Transfers of allowances of class II controlled substances. (a) Inter-company transfers...

45 CFR 2530.80 - Under what circumstances is a transfer revocable?

Code of Federal Regulations, 2011 CFR

2011-10-01

... FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.80 Under what circumstances is a transfer revocable? (a) Revocation. An individual may revoke a transfer at any time and for any... 45 Public Welfare 4 2011-10-01 2011-10-01 false Under what circumstances is a transfer revocable...

40 CFR 80.106 - Product transfer documents.

Code of Federal Regulations, 2012 CFR

2012-07-01

... gasoline being transferred; (iv) The location of the gasoline at the time of the transfer; (v) The date of... 40 Protection of Environment 17 2012-07-01 2012-07-01 false Product transfer documents. 80.106... (CONTINUED) REGULATION OF FUELS AND FUEL ADDITIVES Anti-Dumping § 80.106 Product transfer documents. (a)(1...

45 CFR 2530.80 - Under what circumstances is a transfer revocable?

Code of Federal Regulations, 2013 CFR

2013-10-01

... FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.80 Under what circumstances is a transfer revocable? (a) Revocation. An individual may revoke a transfer at any time and for any... 45 Public Welfare 4 2013-10-01 2013-10-01 false Under what circumstances is a transfer revocable...

31 CFR 306.15 - Transfers and exchanges of securities-closed periods.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., may be used.) Denominational exchanges may be made at any time. Securities presented for transfer must... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Transfers and exchanges of securities... REGULATIONS GOVERNING U.S. SECURITIES Transfers, Exchanges and Reissues § 306.15 Transfers and exchanges of...

40 CFR 82.23 - Transfers of allowances of class II controlled substances.

Code of Federal Regulations, 2014 CFR

2014-07-01

... section. (2) Inter-pollutant transfers will be permitted at any time during the control period and during... 40 Protection of Environment 18 2014-07-01 2014-07-01 false Transfers of allowances of class II... § 82.23 Transfers of allowances of class II controlled substances. (a) Inter-company transfers...

31 CFR 306.15 - Transfers and exchanges of securities-closed periods.

Code of Federal Regulations, 2013 CFR

2013-07-01

..., may be used.) Denominational exchanges may be made at any time. Securities presented for transfer must... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false Transfers and exchanges of securities... REGULATIONS GOVERNING U.S. SECURITIES Transfers, Exchanges and Reissues § 306.15 Transfers and exchanges of...

Understanding Indiana's Reverse Transfer Students: A Case Study in Institutional Research

ERIC Educational Resources Information Center

Hillman, Nick; Lum, Tim; Hossler, Don

2008-01-01

Among all the students who transfer from one institution to another during their academic careers, a distinct group of "reverse transfer" students has emerged over time. Reverse transfer occurs when students begin their college careers at 4-year institutions but eventually transfer into 2-year institutions. Using student unit record data…

45 CFR 2530.80 - Under what circumstances is a transfer revocable?

Code of Federal Regulations, 2014 CFR

2014-10-01

... FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.80 Under what circumstances is a transfer revocable? (a) Revocation. An individual may revoke a transfer at any time and for any... 45 Public Welfare 4 2014-10-01 2014-10-01 false Under what circumstances is a transfer revocable...

Transfers between libration-point orbits in the elliptic restricted problem

NASA Astrophysics Data System (ADS)

Hiday, L. A.; Howell, K. C.

The present time-fixed impulsive transfers between 3D libration point orbits in the vicinity of the interior L(1) libration point of the sun-earth-moon barycenter system are 'optimal' in that the total characteristic velocity required for implementation of the transfer exhibits a local minimum. The conditions necessary for a time-fixed, two-impulse transfer trajectory to be optimal are stated in terms of the primer vector, and the conditions necessary for satisfying the local optimality of a transfer trajectory containing additional impulses are addressed by requiring continuity of the Hamiltonian and the derivative of the primer vector at all interior impulses.

Direct Observation of Excimer-Mediated Intramolecular Electron Transfer in a Cofacially-Stacked Perylene Bisimide Pair.

PubMed

Sung, Jooyoung; Nowak-Król, Agnieszka; Schlosser, Felix; Fimmel, Benjamin; Kim, Woojae; Kim, Dongho; Würthner, Frank

2016-07-27

We have elucidated excimer-mediated intramolecular electron transfer in cofacially stacked PBIs tethered by two phenylene-butadiynylene loops. The electron transfer between energetically equivalent PBIs is revealed by the simultaneous observation of the PBI radical anion and cation bands in the transient absorption spectra. The fluorescence decay time of the excimer states is in good agreement with the rise time of PBI radical bands in transient absorption spectra suggesting that the electron transfer dynamics proceed via the excimer state. We can conclude that the excimer state effectuates the efficient charge transfer in the cofacially stacked PBI dimer.

Primary propulsion of electrothermal, ion, and chemical systems for space-based radar orbit transfer

NASA Technical Reports Server (NTRS)

Wang, S.-Y.; Staiger, P. J.

1985-01-01

An orbit transfer mission concept has been studied for a Space-Based Radar (SBR) where 40 kW required for radar operation is assumed available for orbit transfer propulsion. Arcjet, pulsed electrothermal (PET), ion, and storable chemical systems are considered for the primary propulsion. Transferring two SBR per shuttle flight to 1112 km/60 deg using eiectrical propulsion systems offers an increased payload at the expense of increased trip time, up to 2000 kg each, which may be critical for survivability. Trade offs between payload mass, transfer time, launch site, inclination, and height of parking orbits are presented.

Resolution of concerted versus sequential mechanisms in photo-induced double-proton transfer reaction in 7-azaindole H-bonded dimer

PubMed Central

Catalán, Javier; del Valle, Juan Carlos; Kasha, Michael

1999-01-01

The experimental and theoretical bases for a synchronous or concerted double-proton transfer in centro-symmetric H-bonded electronically excited molecular dimers are presented. The prototype model is the 7-azaindole dimer. New research offers confirmation of a concerted mechanism for excited-state biprotonic transfer. Recent femtosecond photoionization and coulombic explosion techniques have given rise to time-of-flight MS observations suggesting sequential two-step biprotonic transfer for the same dimer. We interpret the overall species observed in the time-of-flight experiments as explicable without conflict with the concerted mechanism of proton transfer. PMID:10411876

Primary propulsion of electrothermal, ion and chemical systems for space-based radar orbit transfer

NASA Technical Reports Server (NTRS)

Wang, S. Y.; Staiger, P. J.

1985-01-01

An orbit transfer mission concept has been studied for a Space-Based Radar (SBR) where 40 kW required for radar operation is assumed available for orbit transfer propulsion. Arcjet, pulsed electrothermal (PET), ion, and storable chemical systems are considered for the primary propulsion. Transferring two SBR per shuttle flight to 1112 km/60 deg using electrical propulsion systems offers an increased payload at the expense of increased trip time, up to 2000 kg each, which may be critical for survivability. Trade offs between payload mass, transfer time, launch site, inclination, and height of parking orbits are presented.

[Low back load reduction using mechanical lift during transfer of patients].

PubMed

Tomioka, Kimiko; Sakae, Kenichiro; Yasuda, Junko

2008-07-01

In Japanese care-work sites, care-workers (CWs) have lacked basic health risk awareness for transferring patients. Knowledge of lifting equipment and skills for transfer of patients have not been disseminated and many CWs have suffered from work-related musculoskeletal disorders, especially low back pain (LBP). In order to find better ways of patient transfer which reduce and prevent LBP, we conducted a study of low back loads and operation time during the transfer of a simulated patient, who was totally dependent from bed to wheelchair, using a mechanical lift (Lift) and manual handling (handling). Moreover we examined the levels of skill which CWs had acquired in transfer by Lift and the effects of acquired skill on low back loads and operation time. We explored low back load using surface electromyography (EMG) of the lumbar paraspinals between L3 and L4 and the trunk inclination angle (TIA) measurement method. The subjects were 5 caregivers who performed the task of transferring a simulated patient from lying on the bed to sitting in a wheelchair using the Lift and by handling. Handling transfer was assisted by two-persons at the head and foot. A 'simulated' patient (a 70 kg healthy male; instructed to keep whole body relaxed) was used in all transfer tasks. When subjects used the Lift, we made an ergonomics checklist for reduction of low back load of caregivers. Subjects performed the task 4 times and were evaluated with the checklist. The level of acquired skill was significantly improved by the guidance of the checklist. TIA was observed to be significantly lower in Lift than in handling, but with EMG no significant differences were seen between Lift and handling. The effects of acquired skill on low back loads showed that TIA was statistically reduced at high skill as compared to low skill. However, there were no significant differences between both skills in Lift and handling by EMG. Operation time of Lift showed significant shortening of operation time with high skill as compared to low skill. Operation time of Lift was about 10 times longer than handling. Thus, we suggest that transfer by Lift is a valid way of reducing the burden on CWs low back. Additionally, this study found that for reduction of LBP risk for CWs, it will be important not only to use the Lift but also to observe proper procedure and raise CW skill levels in patient transfer.

Signal Delay-Stability of a Ku-Band Two-Way Satellite Time Transfer Terminal

DTIC Science & Technology

1995-12-01

Robnik Space Research Institute, Graz, Austria Abstract A filly automated huo-way time and frequency transfer ( TWSTFT ) system including a sateme...station. Such a system has been operated for longer than a year together with the two-way satellite time and frequency transfer ( TWSTFT ) station of...accuracy. MEASUREMENT SETUP A detailed description of the TWSTFT system used at TUG is given in [I]. The SATSIM used is of the de Jong type13,41 - this

A Coordinated Patient Transport System for ICU Patients Requiring Surgery: Impact on Operating Room Efficiency and ICU Workflow.

PubMed

Brown, Michael J; Kor, Daryl J; Curry, Timothy B; Marmor, Yariv; Rohleder, Thomas R

2015-01-01

Transfer of intensive care unit (ICU) patients to the operating room (OR) is a resource-intensive, time-consuming process that often results in patient throughput inefficiencies, deficiencies in information transfer, and suboptimal nurse to patient ratios. This study evaluates the implementation of a coordinated patient transport system (CPTS) designed to address these issues. Using data from 1,557 patient transfers covering the 2006-2010 period, interrupted time series and before and after designs were used to analyze the effect of implementing a CPTS at Mayo Clinic, Rochester. Using a segmented regression for the interrupted time series, on-time OR start time deviations were found to be significantly lower after the implementation of CPTS (p < .0001). The implementation resulted in a fourfold improvement in on-time OR starts (p < .01) while significantly reducing idle OR time (p < .01). A coordinated patient transfer process for moving patient from ICUs to ORs can significantly improve OR efficiency, reduce nonvalue added time, and ensure quality of care by preserving appropriate care provider to patient ratios.

Risk-based transfer responses to climate change, simulated through autocorrelated stochastic methods

NASA Astrophysics Data System (ADS)

Kirsch, B.; Characklis, G. W.

2009-12-01

Maintaining municipal water supply reliability despite growing demands can be achieved through a variety of mechanisms, including supply strategies such as temporary transfers. However, much of the attention on transfers has been focused on market-based transfers in the western United States largely ignoring the potential for transfers in the eastern U.S. The different legal framework of the eastern and western U.S. leads to characteristic differences between their respective transfers. Western transfers tend to be agricultural-to-urban and involve raw, untreated water, with the transfer often involving a simple change in the location and/or timing of withdrawals. Eastern transfers tend to be contractually established urban-to-urban transfers of treated water, thereby requiring the infrastructure to transfer water between utilities. Utilities require the tools to be able to evaluate transfer decision rules and the resulting expected future transfer behavior. Given the long-term planning horizons of utilities, potential changes in hydrologic patterns due to climate change must be considered. In response, this research develops a method for generating a stochastic time series that reproduces the historic autocorrelation and can be adapted to accommodate future climate scenarios. While analogous in operation to an autoregressive model, this method reproduces the seasonal autocorrelation structure, as opposed to assuming the strict stationarity produced by an autoregressive model. Such urban-to-urban transfers are designed to be rare, transient events used primarily during times of severe drought, and incorporating Monte Carlo techniques allows for the development of probability distributions of likely outcomes. This research evaluates a system risk-based, urban-to-urban transfer agreement between three utilities in the Triangle region of North Carolina. Two utilities maintain their own surface water supplies in adjoining watersheds and look to obtain transfers via interconnections to a third utility with access to excess supply. The stochastic generation method is adapted to maintain the cross-correlation of inflows between watersheds. Risk-based decision rules are developed to govern transfers based upon the current level of risk to the water supply. This work determines how expected transfer behavior changes under four future climate scenarios assuming several different risk-thresholds.

Longer Contact Times Increase Cross-Contamination of Enterobacter aerogenes from Surfaces to Food.

PubMed

Miranda, Robyn C; Schaffner, Donald W

2016-11-01

Bacterial cross-contamination from surfaces to food can contribute to foodborne disease. The cross-contamination rate of Enterobacter aerogenes on household surfaces was evaluated by using scenarios that differed by surface type, food type, contact time (<1, 5, 30, and 300 s), and inoculum matrix (tryptic soy broth or peptone buffer). The surfaces used were stainless steel, tile, wood, and carpet. The food types were watermelon, bread, bread with butter, and gummy candy. Surfaces (25 cm 2 ) were spot inoculated with 1 ml of inoculum and allowed to dry for 5 h, yielding an approximate concentration of 10 7 CFU/surface. Foods (with a 16-cm 2 contact area) were dropped onto the surfaces from a height of 12.5 cm and left to rest as appropriate. Posttransfer, surfaces and foods were placed in sterile filter bags and homogenized or massaged, diluted, and plated on tryptic soy agar. The transfer rate was quantified as the log percent transfer from the surface to the food. Contact time, food, and surface type all had highly significant effects (P < 0.000001) on the log percent transfer of bacteria. The inoculum matrix (tryptic soy broth or peptone buffer) also had a significant effect on transfer (P = 0.013), and most interaction terms were significant. More bacteria transferred to watermelon (∼0.2 to 97%) than to any other food, while the least bacteria transferred to gummy candy (∼0.1 to 62%). Transfer of bacteria to bread (∼0.02 to 94%) was similar to transfer of bacteria to bread with butter (∼0.02 to 82%), and these transfer rates under a given set of conditions were more variable than with watermelon and gummy candy. The popular notion of the "five-second rule" is that food dropped on the floor and left there for <5 s is "safe" because bacteria need time to transfer. The rule has been explored by a single study in the published literature and on at least two television shows. Results from two academic laboratories have been shared through press releases but remain unpublished. We explored this topic by using four different surfaces (stainless steel, ceramic tile, wood, and carpet), four different foods (watermelon, bread, bread with butter, and gummy candy), four different contact times (<1, 5, 30, and 300 s), and two bacterial preparation methods. Although we found that longer contact times result in more transfer, we also found that other factors, including the nature of the food and the surface, are of equal or greater importance. Some transfer takes place "instantaneously," at times of <1 s, disproving the five-second rule. Copyright © 2016, American Society for Microbiology. All Rights Reserved.

Longer Contact Times Increase Cross-Contamination of Enterobacter aerogenes from Surfaces to Food

PubMed Central

Miranda, Robyn C.

2016-01-01

ABSTRACT Bacterial cross-contamination from surfaces to food can contribute to foodborne disease. The cross-contamination rate of Enterobacter aerogenes on household surfaces was evaluated by using scenarios that differed by surface type, food type, contact time (<1, 5, 30, and 300 s), and inoculum matrix (tryptic soy broth or peptone buffer). The surfaces used were stainless steel, tile, wood, and carpet. The food types were watermelon, bread, bread with butter, and gummy candy. Surfaces (25 cm2) were spot inoculated with 1 ml of inoculum and allowed to dry for 5 h, yielding an approximate concentration of 107 CFU/surface. Foods (with a 16-cm2 contact area) were dropped onto the surfaces from a height of 12.5 cm and left to rest as appropriate. Posttransfer, surfaces and foods were placed in sterile filter bags and homogenized or massaged, diluted, and plated on tryptic soy agar. The transfer rate was quantified as the log percent transfer from the surface to the food. Contact time, food, and surface type all had highly significant effects (P < 0.000001) on the log percent transfer of bacteria. The inoculum matrix (tryptic soy broth or peptone buffer) also had a significant effect on transfer (P = 0.013), and most interaction terms were significant. More bacteria transferred to watermelon (∼0.2 to 97%) than to any other food, while the least bacteria transferred to gummy candy (∼0.1 to 62%). Transfer of bacteria to bread (∼0.02 to 94%) was similar to transfer of bacteria to bread with butter (∼0.02 to 82%), and these transfer rates under a given set of conditions were more variable than with watermelon and gummy candy. IMPORTANCE The popular notion of the “five-second rule” is that food dropped on the floor and left there for <5 s is “safe” because bacteria need time to transfer. The rule has been explored by a single study in the published literature and on at least two television shows. Results from two academic laboratories have been shared through press releases but remain unpublished. We explored this topic by using four different surfaces (stainless steel, ceramic tile, wood, and carpet), four different foods (watermelon, bread, bread with butter, and gummy candy), four different contact times (<1, 5, 30, and 300 s), and two bacterial preparation methods. Although we found that longer contact times result in more transfer, we also found that other factors, including the nature of the food and the surface, are of equal or greater importance. Some transfer takes place “instantaneously,” at times of <1 s, disproving the five-second rule. PMID:27590818

Assessing segment- and corridor-based travel-time reliability on urban freeways tech transfer summary : tech transfer summary.

DOT National Transportation Integrated Search

2016-09-01

Travel time and travel-time reliability have been used as performance : measures to evaluate traffic system conditions and develop advanced : traveler information and traffic management systems. The objectives of this research were to: : - Quantify s...

Modeling and Assessment of Precise Time Transfer by Using BeiDou Navigation Satellite System Triple-Frequency Signals

PubMed Central

Zhang, Pengfei; Zhang, Rui; Liu, Jinhai; Lu, Xiaochun

2018-01-01

This study proposes two models for precise time transfer using the BeiDou Navigation Satellite System triple-frequency signals: ionosphere-free (IF) combined precise point positioning (PPP) model with two dual-frequency combinations (IF-PPP1) and ionosphere-free combined PPP model with a single triple-frequency combination (IF-PPP2). A dataset with a short baseline (with a common external time frequency) and a long baseline are used for performance assessments. The results show that IF-PPP1 and IF-PPP2 models can both be used for precise time transfer using BeiDou Navigation Satellite System (BDS) triple-frequency signals, and the accuracy and stability of time transfer is the same in both cases, except for a constant system bias caused by the hardware delay of different frequencies, which can be removed by the parameter estimation and prediction with long time datasets or by a priori calibration. PMID:29596330

Ultrafast Interlayer Electron Transfer in Incommensurate Transition Metal Dichalcogenide Homobilayers.

PubMed

Li, Yuanyuan; Cui, Qiannan; Ceballos, Frank; Lane, Samuel D; Qi, Zeming; Zhao, Hui

2017-11-08

Two-dimensional materials, such as graphene, transition metal dichalcogenides, and phosphorene, can be used to construct van der Waals multilayer structures. This approach has shown potentials to produce new materials that combine novel properties of the participating individual layers. One key requirement for effectively harnessing emergent properties of these materials is electronic connection of the involved atomic layers through efficient interlayer charge or energy transfer. Recently, ultrafast charge transfer on a time scale shorter than 100 fs has been observed in several van der Waals bilayer heterostructures formed by two different materials. However, information on the transfer between two atomic layers of the same type is rare. Because these homobilayers are essential elements in constructing multilayer structures with desired optoelectronic properties, efficient interlayer transfer is highly desired. Here we show that electron transfer between two monolayers of MoSe 2 occurs on a picosecond time scale. Even faster transfer was observed in homobilayers of WS 2 and WSe 2 . The samples were fabricated by manually stacking two exfoliated monolayer flakes. By adding a graphene layer as a fast carrier recombination channel for one of the two monolayers, the transfer of the photoexcited carriers from the populated to the drained monolayers was time-resolved by femtosecond transient absorption measurements. The observed efficient interlayer carrier transfer indicates that such homobilayers can be used in van der Waals multilayers to enhance their optical absorption without significantly compromising the interlayer transport performance. Our results also provide valuable information for understanding interlayer charge transfer in heterostructures.

An Elegant Sufficiency: Load-Aware Differentiated Scheduling of Data Transfers

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kettimuthu, Rajkumar; Vardoyan, Gayane; Agrawal, Gagan

2015-11-15

We investigate the file transfer scheduling problem, where transfers among different endpoints must be scheduled to maximize pertinent metrics. We propose two new algorithms that exploit the fact that the aggregate bandwidth obtained over a network or at a storage system tends to increase with the number of concurrent transfers—but only up to a certain limit. The first algorithm, SEAL, uses runtime information and data-driven models to approximate system load and adapt transfer schedules and concurrency so as to maximize performance while avoiding saturation. We implement this algorithm using GridFTP as the transfer protocol and evaluate it using real transfermore » logs in a production WAN environment. Results show that SEAL can improve average slowdowns and turnaround times by up to 25% and worst-case slowdown and turnaround times by up to 50%, compared with the best-performing baseline scheme. Our second algorithm, STEAL, further leverages user-supplied categorization of transfers as either “interactive” (requiring immediate processing) or “batch” (less time-critical). Results show that STEAL reduces the average slowdown of interactive transfers by 63% compared to the best-performing baseline and by 21% compared to SEAL. For batch transfers, compared to the best-performing baseline, STEAL improves by 18% the utilization of the bandwidth unused by interactive transfers. By elegantly ensuring a sufficient, but not excessive, allocation of concurrency to the right transfers, we significantly improve overall performance despite constraints.« less

5 CFR 843.210 - Transfers between retirement systems.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 5 Administrative Personnel 2 2013-01-01 2013-01-01 false Transfers between retirement systems. 843... REGULATIONS (CONTINUED) FEDERAL EMPLOYEES RETIREMENT SYSTEM-DEATH BENEFITS AND EMPLOYEE REFUNDS One-time Payments § 843.210 Transfers between retirement systems. Transfers of employees' contributions between the...

5 CFR 843.210 - Transfers between retirement systems.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 5 Administrative Personnel 2 2011-01-01 2011-01-01 false Transfers between retirement systems. 843... REGULATIONS (CONTINUED) FEDERAL EMPLOYEES RETIREMENT SYSTEM-DEATH BENEFITS AND EMPLOYEE REFUNDS One-time Payments § 843.210 Transfers between retirement systems. Transfers of employees' contributions between the...

5 CFR 843.210 - Transfers between retirement systems.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 5 Administrative Personnel 2 2014-01-01 2014-01-01 false Transfers between retirement systems. 843... REGULATIONS (CONTINUED) FEDERAL EMPLOYEES RETIREMENT SYSTEM-DEATH BENEFITS AND EMPLOYEE REFUNDS One-time Payments § 843.210 Transfers between retirement systems. Transfers of employees' contributions between the...

5 CFR 843.210 - Transfers between retirement systems.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 5 Administrative Personnel 2 2012-01-01 2012-01-01 false Transfers between retirement systems. 843... REGULATIONS (CONTINUED) FEDERAL EMPLOYEES RETIREMENT SYSTEM-DEATH BENEFITS AND EMPLOYEE REFUNDS One-time Payments § 843.210 Transfers between retirement systems. Transfers of employees' contributions between the...

High School Transfer Students and the Transition to College: Timing and the Structure of the School Year

PubMed Central

Sutton, April; Muller, Chandra; Langenkamp, Amy G.

2013-01-01

The timing of a high school transfer may shape students’ transitions to college through its (mis)alignment with the structure of the school year. A transfer that occurs during the summer interrupts the four-year high school career, whereas a transfer that occurs midyear disrupts both the four-year high school career and the structure of the school year. Using the Education Longitudinal Study of 2002 (ELS), the investigators find that the penalty suffered after the transfer depends on the degree to which students’ high school pathways synchronize with the curricular and extracurricular structure of the school year. Midyear transfer students appear to suffer the greatest postsecondary matriculation penalty. Students who transfer midyear are less likely to attend a four-year college compared with nontransfer and summer transfer students, whereas summer transfer students are less likely to attend a highly selective four-year college compared with their nontransfer counterparts. Curricular and extracurricular disruptions that transfer students experience after their school move explain some, but not all, of the negative associations observed between transferring and the transition to college. Directions for future research and the theoretical and policy implications of the results are discussed. PMID:24683277

Structural integrity of callosal midbody influences intermanual transfer in a motor reaction-time task.

PubMed

Bonzano, Laura; Tacchino, Andrea; Roccatagliata, Luca; Mancardi, Giovanni Luigi; Abbruzzese, Giovanni; Bove, Marco

2011-02-01

Training one hand on a motor task results in performance improvements in the other hand, also when stimuli are randomly presented (nonspecific transfer). Corpus callosum (CC) is the main structure involved in interhemispheric information transfer; CC pathology occurs in patients with multiple sclerosis (PwMS) and is related to altered performance of tasks requiring interhemispheric transfer of sensorimotor information. To investigate the role of CC in nonspecific transfer during a pure motor reaction-time task, we combined motor behavior with diffusion tensor imaging analysis in PwMS. Twenty-two PwMS and 10 controls, all right-handed, were asked to respond to random stimuli with appropriate finger opposition movements with the right (learning) and then the left (transfer) hand. PwMS were able to improve motor performance reducing response times with practice with a trend similar to controls and preserved the ability to transfer the acquired motor information from the learning to the transfer hand. A higher variability in the transfer process, indicated by a significantly larger standard deviation of mean nonspecific transfer, was found in the PwMS group with respect to the control group, suggesting the presence of subtle impairments in interhemispheric communication in some patients. Then, we correlated the amount of nonspecific transfer with mean fractional anisotropy (FA) values, indicative of microstructural damage, obtained in five CC subregions identified on PwMS's FA maps. A significant correlation was found only in the subregion including posterior midbody (Pearson's r = 0.74, P = 0.003), which thus seems to be essential for the interhemispheric transfer of information related to pure sensorimotor tasks. Copyright © 2010 Wiley-Liss, Inc.

Integrated locating of helicopter stations and helipads for wounded transfer under demand location uncertainty.

PubMed

Bozorgi-Amiri, Ali; Tavakoli, Shayan; Mirzaeipour, Hossein; Rabbani, Masoud

2017-03-01

Health emergency medical service (HEMS) plays an important role in reducing injuries by providing advanced medical care in the shortest time and reducing the transfer time to advanced treatment centers. In the regions without ground relief coverage, it would be faster to transfer emergency patients to the hospital by a helicopter. In this paper, an integer nonlinear programming model is presented for the integrated locating of helicopter stations and helipads by considering uncertainty in demand points. We assume three transfer modes: (1) direct transfer by an ambulance, (2) transfer by an ambulance to a helicopter station and then to the hospital by a helicopter, (3) transfer by an ambulance to a predetermined point and then to the hospital by a helicopter. We also assume that demands occur in a square-shaped area, in which each side follows a uniform distribution. It is also assumed that demands in an area decrease errors in the distances between each two cities. The purpose of this model is to minimize the transfer time from demand points to the hospital by considering different modes. The proposed model is examined in terms of validity and applicability in Lorestan Province and a sensitivity analysis is also conducted on the total allocated budget. Copyright © 2016 Elsevier Inc. All rights reserved.

The effect of modeled absolute timing variability and relative timing variability on observational learning.

PubMed

Grierson, Lawrence E M; Roberts, James W; Welsher, Arthur M

2017-05-01

There is much evidence to suggest that skill learning is enhanced by skill observation. Recent research on this phenomenon indicates a benefit of observing variable/erred demonstrations. In this study, we explore whether it is variability within the relative organization or absolute parameterization of a movement that facilitates skill learning through observation. To do so, participants were randomly allocated into groups that observed a model with no variability, absolute timing variability, relative timing variability, or variability in both absolute and relative timing. All participants performed a four-segment movement pattern with specific absolute and relative timing goals prior to and following the observational intervention, as well as in a 24h retention test and transfers tests that featured new relative and absolute timing goals. Absolute timing error indicated that all groups initially acquired the absolute timing, maintained their performance at 24h retention, and exhibited performance deterioration in both transfer tests. Relative timing error revealed that the observation of no variability and relative timing variability produced greater performance at the post-test, 24h retention and relative timing transfer tests, but for the no variability group, deteriorated at absolute timing transfer test. The results suggest that the learning of absolute timing following observation unfolds irrespective of model variability. However, the learning of relative timing benefits from holding the absolute features constant, while the observation of no variability partially fails in transfer. We suggest learning by observing no variability and variable/erred models unfolds via similar neural mechanisms, although the latter benefits from the additional coding of information pertaining to movements that require a correction. Copyright © 2017 Elsevier B.V. All rights reserved.

Early-Life Parent-Child Relationships and Adult Children's Support of Unpartnered Parents in Later Life.

PubMed

Lin, I-Fen; Wu, Hsueh-Sheng

2018-02-08

The proportion of older adults who are unpartnered has increased significantly over the past 25 years. Unpartnered older adults often rely on their adult children for support. Most previous studies have focused on proximal factors associated with adult children's support of their parents, while few have examined distal factors, such as parent-child relationships formed during childhood. This study fills the gap by investigating the direct and indirect associations between early-life parent-child relationships and adult children's upward transfers to unpartnered parents. Data came from two supplements to the Panel Study of Income Dynamics, in which respondents were asked about their relationships with mothers and fathers before age 17 and their transfers of time and money to parents in 2013. Path models were estimated for unpartnered mother-adult child dyads and father-adult child dyads separately. For adult children of unpartnered mothers, psychological closeness has a direct, positive association with time transfer, while physical violence has an indirect association with time transfer through adult children's marital status. For adult children of unpartnered fathers, psychological closeness has neither a direct nor an indirect association with time or money transfer, but physical violence has a direct, negative association with time transfer. Early-life parent-child relationships play a pivotal role in influencing adult children's caregiving behavior, both directly and indirectly. Our findings suggest that by improving their relationships with children early in life, parents may be able to increase the amount of time transfer that they receive in late life. © The Author(s) 2018. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

26 CFR 25.2511-1 - Transfers in general.

Code of Federal Regulations, 2013 CFR

2013-04-01

... decedent's property within a reasonable time after learning of the existence of the transfer, he will be... 26 Internal Revenue 14 2013-04-01 2013-04-01 false Transfers in general. 25.2511-1 Section 25.2511... TAXES GIFT TAX; GIFTS MADE AFTER DECEMBER 31, 1954 Transfers § 25.2511-1 Transfers in general. (a) The...

26 CFR 25.2511-1 - Transfers in general.

Code of Federal Regulations, 2012 CFR

2012-04-01

... decedent's property within a reasonable time after learning of the existence of the transfer, he will be... 26 Internal Revenue 14 2012-04-01 2012-04-01 false Transfers in general. 25.2511-1 Section 25.2511... TAXES GIFT TAX; GIFTS MADE AFTER DECEMBER 31, 1954 Transfers § 25.2511-1 Transfers in general. (a) The...

26 CFR 25.2511-1 - Transfers in general.

Code of Federal Regulations, 2014 CFR

2014-04-01

... decedent's property within a reasonable time after learning of the existence of the transfer, he will be... 26 Internal Revenue 14 2014-04-01 2013-04-01 true Transfers in general. 25.2511-1 Section 25.2511... TAXES GIFT TAX; GIFTS MADE AFTER DECEMBER 31, 1954 Transfers § 25.2511-1 Transfers in general. (a) The...

45 CFR 1610.7 - Transfers of LSC funds.

Code of Federal Regulations, 2011 CFR

2011-10-01

... receiving a transfer of LSC funds are required to maintain records of time spent on each case or matter... 45 Public Welfare 4 2011-10-01 2011-10-01 false Transfers of LSC funds. 1610.7 Section 1610.7...-LSC FUNDS, TRANSFERS OF LSC FUNDS, PROGRAM INTEGRITY § 1610.7 Transfers of LSC funds. (a) If a...

45 CFR 1610.7 - Transfers of LSC funds.

Code of Federal Regulations, 2013 CFR

2013-10-01

... receiving a transfer of LSC funds are required to maintain records of time spent on each case or matter... 45 Public Welfare 4 2013-10-01 2013-10-01 false Transfers of LSC funds. 1610.7 Section 1610.7...-LSC FUNDS, TRANSFERS OF LSC FUNDS, PROGRAM INTEGRITY § 1610.7 Transfers of LSC funds. (a) If a...

17 CFR 240.17Ac2-2 - Annual reporting requirement for registered transfer agents.

Code of Federal Regulations, 2014 CFR

2014-04-01

... inaccurate, incomplete, or misleading. A transfer agent may file an amendment at any time; however, in order... for registered transfer agents. 240.17Ac2-2 Section 240.17Ac2-2 Commodity and Securities Exchanges... Organizations § 240.17Ac2-2 Annual reporting requirement for registered transfer agents. (a) Every transfer...

45 CFR 1610.7 - Transfers of LSC funds.

Code of Federal Regulations, 2010 CFR

2010-10-01

... receiving a transfer of LSC funds are required to maintain records of time spent on each case or matter... 45 Public Welfare 4 2010-10-01 2010-10-01 false Transfers of LSC funds. 1610.7 Section 1610.7...-LSC FUNDS, TRANSFERS OF LSC FUNDS, PROGRAM INTEGRITY § 1610.7 Transfers of LSC funds. (a) If a...

45 CFR 1610.7 - Transfers of LSC funds.

Code of Federal Regulations, 2012 CFR

2012-10-01

... receiving a transfer of LSC funds are required to maintain records of time spent on each case or matter... 45 Public Welfare 4 2012-10-01 2012-10-01 false Transfers of LSC funds. 1610.7 Section 1610.7...-LSC FUNDS, TRANSFERS OF LSC FUNDS, PROGRAM INTEGRITY § 1610.7 Transfers of LSC funds. (a) If a...

45 CFR 1610.7 - Transfers of LSC funds.

Code of Federal Regulations, 2014 CFR

2014-10-01

... receiving a transfer of LSC funds are required to maintain records of time spent on each case or matter... 45 Public Welfare 4 2014-10-01 2014-10-01 false Transfers of LSC funds. 1610.7 Section 1610.7...-LSC FUNDS, TRANSFERS OF LSC FUNDS, PROGRAM INTEGRITY § 1610.7 Transfers of LSC funds. (a) If a...

Ergonomics and patient handling.

PubMed

McCoskey, Kelsey L

2007-11-01

This study aimed to describe patient-handling demands in inpatient units during a 24-hour period at a military health care facility. A 1-day total population survey described the diverse nature and impact of patient-handling tasks relative to a variety of nursing care units, patient characteristics, and transfer equipment. Productivity baselines were established based on patient dependency, physical exertion, type of transfer, and time spent performing the transfer. Descriptions of the physiological effect of transfers on staff based on patient, transfer, and staff characteristics were developed. Nursing staff response to surveys demonstrated how patient-handling demands are impacted by the staff's physical exertion and level of patient dependency. The findings of this study describe the types of transfers occurring in these inpatient units and the physical exertion and time requirements for these transfers. This description may guide selection of the most appropriate and cost-effective patient-handling equipment required for specific units and patients.

Low thrust spacecraft transfers optimization method with the stepwise control structure in the Earth-Moon system in terms of the L1-L2 transfer

NASA Astrophysics Data System (ADS)

Fain, M. K.; Starinova, O. L.

2016-04-01

The paper outlines the method for determination of the locally optimal stepwise control structure in the problem of the low thrust spacecraft transfer optimization in the Earth-Moon system, including the L1-L2 transfer. The total flight time as an optimization criterion is considered. The optimal control programs were obtained by using the Pontryagin's maximum principle. As a result of optimization, optimal control programs, corresponding trajectories, and minimal total flight times were determined.

Fail-over file transfer process

NASA Technical Reports Server (NTRS)

Semancik, Susan K. (Inventor); Conger, Annette M. (Inventor)

2005-01-01

The present invention provides a fail-over file transfer process to handle data file transfer when the transfer is unsuccessful in order to avoid unnecessary network congestion and enhance reliability in an automated data file transfer system. If a file cannot be delivered after attempting to send the file to a receiver up to a preset number of times, and the receiver has indicated the availability of other backup receiving locations, then the file delivery is automatically attempted to one of the backup receiving locations up to the preset number of times. Failure of the file transfer to one of the backup receiving locations results in a failure notification being sent to the receiver, and the receiver may retrieve the file from the location indicated in the failure notification when ready.

Coherent Electron Transfer at the Ag / Graphite Heterojunction Interface

NASA Astrophysics Data System (ADS)

Tan, Shijing; Dai, Yanan; Zhang, Shengmin; Liu, Liming; Zhao, Jin; Petek, Hrvoje

2018-03-01

Charge transfer in transduction of light to electrical or chemical energy at heterojunctions of metals with semiconductors or semimetals is believed to occur by photogenerated hot electrons in metal undergoing incoherent internal photoemission through the heterojunction interface. Charge transfer, however, can also occur coherently by dipole coupling of electronic bands at the heterojunction interface. Microscopic physical insights into how transfer occurs can be elucidated by following the coherent polarization of the donor and acceptor states on the time scale of electronic dephasing. By time-resolved multiphoton photoemission spectroscopy (MPP), we investigate the coherent electron transfer from an interface state that forms upon chemisorption of Ag nanoclusters onto graphite to a σ symmetry interlayer band of graphite. Multidimensional MPP spectroscopy reveals a resonant two-photon transition, which dephases within 10 fs completing the coherent transfer.

Femtosecond dynamics of energy transfer in B800-850 light-harvesting complexes of Rhodobacter sphaeroides.

PubMed Central

Trautman, J K; Shreve, A P; Violette, C A; Frank, H A; Owens, T G; Albrecht, A C

1990-01-01

We report femtosecond transient absorption studies of energy transfer dynamics in the B800-850 light-harvesting complex (LHC) of Rhodobacter sphaeroides 2.4.1. For complexes solubilized in lauryldimethylamine-N-oxide (LDAO), the carotenoid to bacteriochlorophyll (Bchl) B800 and carotenoid to Bchl B850 energy transfer times are 0.34 and 0.20 ps, respectively. The B800 to B850 energy transfer time is 2.5 ps. For complexes treated with lithium dodecyl sulfate (LDS), a carotenoid to B850 energy transfer time of less than or equal to 0.2 ps is seen, and a portion of the total carotenoid population is decoupled from Bchl. In both LDAO-solubilized and LDS-treated complexes an intensity-dependent picosecond decay component of the excited B850 population is ascribed to excitation annihilation within minimal units of the LHC. PMID:2404276

Comparison of GLONASS and GPS time transfers between two west European time laboratories and VNIIFTRI

NASA Technical Reports Server (NTRS)

Daly, P.; Koshelyaevsky, N. B.; Lewandowski, Wlodzimierz; Petit, Gerard; Thomas, Claudine

1992-01-01

The University of Leeds built a Global Positioning System/Global Orbiting Navigation Satellite System (GPS/GLONASS) receiver about five years ago and since then has provided continuous information about GLONASS time and its comparison with GPS time. For the last two years, VNIIFTRI (All Union Institute for Physical, Technical and Radiotechnical Measurements) and some other Soviet time laboratories have used Soviet built GLONASS navigation receivers for time comparisons. Since June 1991, VNIIFTIR has been operating a GPS time receiver on loan from the BIPM (Bureau International des Poids et Mesures). This offered, for the first time, an opportunity for direct comparison of time transfers using GPS and GLONASS. This experiment shows that even with relatively imprecise data recording and processing, in terms of time metrology, GLONASS can provide continental time transfer at a level of several tens of nanoseconds.

The contact heat transfer between the heating plate and granular materials in rotary heat exchanger under overloaded condition

NASA Astrophysics Data System (ADS)

Duan, Luanfang; Qi, Chonggang; Ling, Xiang; Peng, Hao

2018-03-01

In the present work, the contact heat transfer between the granular materials and heating plates inside plate rotary heat exchanger (PRHE) was investigated. The heat transfer coefficient is dominated by the contact heat transfer coefficient at hot wall surface of the heating plates and the heat penetration inside the solid bed. A plot scale PRHE with a diameter of Do = 273 mm and a length of L = 1000 mm has been established. Quartz sand with dp = 2 mm was employed as the experimental material. The operational parameters were in the range of ω = 1 - 8 rpm, and F = 15, 20, 25, 30%, and the effect of these parameters on the time-average contact heat transfer coefficient was analyzed. The time-average contact heat transfer coefficient increases with the increase of rotary speed, but decreases with the increase of the filling degree. The measured data of time-average heat transfer coefficients were compared with theoretical calculations from Schlünder's model, a good agreement between the measurements and the model could be achieved, especially at a lower rotary speed and filling degree level. The maximum deviation between the calculated data and the experimental data is approximate 10%.

Closed-loop spontaneous baroreflex transfer function is inappropriate for system identification of neural arc but partly accurate for peripheral arc: predictability analysis

PubMed Central

Kamiya, Atsunori; Kawada, Toru; Shimizu, Shuji; Sugimachi, Masaru

2011-01-01

Abstract Although the dynamic characteristics of the baroreflex system have been described by baroreflex transfer functions obtained from open-loop analysis, the predictability of time-series output dynamics from input signals, which should confirm the accuracy of system identification, remains to be elucidated. Moreover, despite theoretical concerns over closed-loop system identification, the accuracy and the predictability of the closed-loop spontaneous baroreflex transfer function have not been evaluated compared with the open-loop transfer function. Using urethane and α-chloralose anaesthetized, vagotomized and aortic-denervated rabbits (n = 10), we identified open-loop baroreflex transfer functions by recording renal sympathetic nerve activity (SNA) while varying the vascularly isolated intracarotid sinus pressure (CSP) according to a binary random (white-noise) sequence (operating pressure ± 20 mmHg), and using a simplified equation to calculate closed-loop-spontaneous baroreflex transfer function while matching CSP with systemic arterial pressure (AP). Our results showed that the open-loop baroreflex transfer functions for the neural and peripheral arcs predicted the time-series SNA and AP outputs from measured CSP and SNA inputs, with r2 of 0.8 ± 0.1 and 0.8 ± 0.1, respectively. In contrast, the closed-loop-spontaneous baroreflex transfer function for the neural arc was markedly different from the open-loop transfer function (enhanced gain increase and a phase lead), and did not predict the time-series SNA dynamics (r2; 0.1 ± 0.1). However, the closed-loop-spontaneous baroreflex transfer function of the peripheral arc partially matched the open-loop transfer function in gain and phase functions, and had limited but reasonable predictability of the time-series AP dynamics (r2, 0.7 ± 0.1). A numerical simulation suggested that a noise predominantly in the neural arc under resting conditions might be a possible mechanism responsible for our findings. Furthermore, the predictabilities of the neural arc transfer functions obtained in open-loop and closed-loop conditions were validated by closed-loop pharmacological (phenylephrine and nitroprusside infusions) pressure interventions. Time-series SNA responses to drug-induced AP changes predicted by the open-loop transfer function matched closely the measured responses (r2, 0.9 ± 0.1), whereas SNA responses predicted by closed-loop-spontaneous transfer function deviated greatly and were the inverse of measured responses (r, −0.8 ± 0.2). These results indicate that although the spontaneous baroreflex transfer function obtained by closed-loop analysis has been believed to represent the neural arc function, it is inappropriate for system identification of the neural arc but is essentially appropriate for the peripheral arc under resting conditions, when compared with open-loop analysis. PMID:21486839

Transfer and the Part-Time Student: The Gulf Separating Community Colleges and Selective Universities

ERIC Educational Resources Information Center

Handel, Stephen J.

2009-01-01

When representatives from community colleges and selective four-year institutions gather, there is no greater flashpoint than the topic of part-time enrollment. This issue--that students coming from an institution comprising mostly part-time students should be enabled to transfer to selective four-year institutions in which full-time enrollment is…

Transfer of patients with ST-elevation myocardial infarction for primary percutaneous coronary intervention: a province-wide evaluation of "door-in to door-out" delays at the first hospital.

PubMed

Lambert, Laurie J; Brown, Kevin A; Boothroyd, Lucy J; Segal, Eli; Maire, Sébastien; Kouz, Simon; Ross, Dave; Harvey, Richard; Rinfret, Stéphane; Xiao, Yongling; Nasmith, James; Bogaty, Peter

2014-06-24

Interhospital transfer of patients with ST-elevation myocardial infarction (STEMI) for primary percutaneous coronary intervention (PPCI) is associated with longer delays to reperfusion, related in part to turnaround ("door in" to "door out," or DIDO) time at the initial hospital. As part of a systematic, province-wide evaluation of STEMI care, we examined DIDO times and associations with patient, hospital, and process-of-care factors. We performed medical chart review for STEMI patients transferred for PPCI during a 6-month period (October 1, 2008, through March 31, 2009) and linked these data to ambulance service databases. Two core laboratory cardiologists reviewed presenting ECGs to identify left bundle-branch block and, in the absence of left bundle-branch block, definite STEMI (according to both cardiologists) or an ambiguous reading. Median DIDO time was 51 minutes (25th to 75th percentile: 35-82 minutes); 14.1% of the 988 patients had a timely DIDO interval (≤30 minutes as recommended by guidelines). The data-to-decision delay was the major contributor to DIDO time. Female sex, more comorbidities, longer symptom duration, arrival by means other than ambulance, arrival at a hospital not exclusively transferring for PPCI, arrival at a center with a low STEMI volume, and an ambiguous ECG were independently associated with longer DIDO time. When turnaround was timely, 70% of patients received timely PPCI (door-to-device time ≤90 minutes) versus 14% if turnaround was not timely (P<0.0001). Benchmark DIDO times for STEMI patients transferred for PPCI were rarely achieved. Interventions aimed at facilitating the transfer decision, particularly in cases of ECGs that are difficult to interpret, are likely to have the best impact on reducing delay to reperfusion. © 2014 American Heart Association, Inc.

Alkylation effects on the energy transfer of highly vibrationally excited naphthalene.

PubMed

Hsu, Hsu Chen; Tsai, Ming-Tsang; Dyakov, Yuri A; Ni, Chi-Kung

2011-11-04

The energy transfer of highly vibrationally excited isomers of dimethylnaphthalene and 2-ethylnaphthalene in collisions with krypton were investigated using crossed molecular beam/time-of-flight mass spectrometer/time-sliced velocity map ion imaging techniques at a collision energy of approximately 300 cm(-1). Angular-resolved energy-transfer distribution functions were obtained directly from the images of inelastic scattering. The results show that alkyl-substituted naphthalenes transfer more vibrational energy to translational energy than unsubstituted naphthalene. Alkylation enhances the V→T energy transfer in the range -ΔE(d)=-100~-1500 cm(-1) by approximately a factor of 2. However, the maximum values of V→T energy transfer for alkyl-substituted naphthalenes are about 1500~2000 cm(-1), which is similar to that of naphthalene. The lack of rotation-like wide-angle motion of the aromatic ring and no enhancement in very large V→T energy transfer, like supercollisions, indicates that very large V→T energy transfer requires special vibrational motions. This transfer cannot be achieved by the low-frequency vibrational motions of alkyl groups. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Fast Quantum State Transfer and Entanglement Renormalization Using Long-Range Interactions.

PubMed

Eldredge, Zachary; Gong, Zhe-Xuan; Young, Jeremy T; Moosavian, Ali Hamed; Foss-Feig, Michael; Gorshkov, Alexey V

2017-10-27

In short-range interacting systems, the speed at which entanglement can be established between two separated points is limited by a constant Lieb-Robinson velocity. Long-range interacting systems are capable of faster entanglement generation, but the degree of the speedup possible is an open question. In this Letter, we present a protocol capable of transferring a quantum state across a distance L in d dimensions using long-range interactions with a strength bounded by 1/r^{α}. If α

Fast Quantum State Transfer and Entanglement Renormalization Using Long-Range Interactions

NASA Astrophysics Data System (ADS)

Eldredge, Zachary; Gong, Zhe-Xuan; Young, Jeremy T.; Moosavian, Ali Hamed; Foss-Feig, Michael; Gorshkov, Alexey V.

2017-10-01

In short-range interacting systems, the speed at which entanglement can be established between two separated points is limited by a constant Lieb-Robinson velocity. Long-range interacting systems are capable of faster entanglement generation, but the degree of the speedup possible is an open question. In this Letter, we present a protocol capable of transferring a quantum state across a distance L in d dimensions using long-range interactions with a strength bounded by 1 /rα. If α

12 CFR 204.2 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-01-01

... is not a natural person; (ii) A time deposit, including an MMDA or any other savings deposit, that represents funds deposited to the credit of a depositor that is not a natural person, other than a deposit to... one or more natural persons; (iii) A transferable time deposit. A time deposit is transferable unless...

12 CFR 204.2 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-01-01

... is not a natural person; (ii) A time deposit, including an MMDA or any other savings deposit, that represents funds deposited to the credit of a depositor that is not a natural person, other than a deposit to... one or more natural persons; (iii) A transferable time deposit. A time deposit is transferable unless...

Reactivity of propene, n-butene, and isobutene in the hydrogen transfer steps of n-hexane cracking over zeolites of different structure

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lukyanov, D.B.

The reaction of n-hexane cracking over HZSM-5, HY zeolite and mordenite (HM) was studied in accordance with the procedure of the [beta]-test recently proposed for quantitative characterization of zeolite hydrogen transfer activity. It is shown that this procedure allows one to obtain quantitative data on propene, n-butene, and isobutene reactivities in the hydrogen transfer steps of the reaction. The results demonstrate that in the absence of steric constraints (large pore HY and HM zeolites) isobutene is approximately 5 times more reactive in hydrogen transfer than n-butene. The latter, in turn, is about 1.3 times more reactive than propene. With mediummore » pore HZSM-5, steric inhibition of the hydrogen transfer between n-hexane and isobutene is observed. This results in a sharp decrease in the isobutene reactivity: over HZSM-5 zeolites isobutene is only 1.2 times more reactive in hydrogen transfer than n-butene. On the basis of these data it is concluded that the [beta]-test measures the [open quotes]real[close quotes] hydrogen transfer activity of zeolites, i.e., the activity that summarizes the effects of the acidic and structural properties of zeolites. An attempt is made to estimate the [open quotes]ideal[close quotes] zeolite hydrogen transfer activity, i.e., the activity determined by the zeolite acidic properties only. The estimations obtained show that this activity is approximately 1.8 and 1.6 times higher for HM zeolite in comparison with HZSM-5 and HY zeolites, respectively. 16 refs., 4 figs., 2 tabs.« less

Frequency of pubic hair transfer during sexual intercourse.

PubMed

Exline, D L; Smith, F P; Drexler, S G

1998-05-01

This study measured the frequency of pubic hair transfer between a limited number of consenting heterosexual partners. The results derive from controlled experiments with a number of human subjects rather than forensic casework. Standardized collection procedures were observed, situational variables were tracked. Participants (forensic laboratory employees and their spouses) were six Caucasian couples who collected their pubic hair combings immediately following intercourse. Subjects provided informed consent in accordance with the protocol for human subjects approved by the U.A.B. institutional review board. The experiment was replicated ten times for five couples, and five times for another couple (total n = 110). Transfer frequencies were calculated from instances where foreign (exogenous) hairs were observed. Results showed at least one exogenous pubic hair in 17.3% (19/110) of combings. Transfers to males (23.6%, or 13/55) were more prevalent than transfers to females (10.9%, or 6/55). Only once were transfers observed simultaneously between both male and female. A total of 28 exogenous pubic hairs were identified. Subjects reported intercourse duration of 2-25 min, intervening intervals of 1-240 h, pre-coital bathing intervals of 0.25-24 h, and predominantly missionary position (76%). No clear relationship among these other survey variables was observed. The prevalence of female-to-male pubic hair transfers suggests the importance of collecting pubic hair combings from the male suspects as well as from female victims, provided the time interval is not extreme. Even under these optimum collection conditions, pubic hair transfers were observed only 17.3% of the time.

Time Transfer by Laser Link - T2L2: Results of the First Year of Operation

DTIC Science & Technology

2009-11-01

transportable laser ranging system (FTLRS) based at Paris (Syrte). The availability on these sites of both a GPS and a TWSTFT station will allow a direct...on these two sites, of both a GPS and a TWSTFT station will also allow a direct comparison of T2L2 with RF time transfer techniques. T2L2...calibration of various existing radiofrequency time and frequency transfer systems like GPS or TWSTFT , and comparisons of cold-atom clocks at a level

45 CFR 2530.60 - What is the impact of transferring or receiving a transferred education award on an individual's...

Code of Federal Regulations, 2013 CFR

2013-10-01

... received at the time it becomes available for an individual's use. Transferring all or part of an award... 45 Public Welfare 4 2013-10-01 2013-10-01 false What is the impact of transferring or receiving a transferred education award on an individual's eligibility to receive additional education awards? 2530.60...

45 CFR 2530.60 - What is the impact of transferring or receiving a transferred education award on an individual's...

Code of Federal Regulations, 2012 CFR

2012-10-01

... received at the time it becomes available for an individual's use. Transferring all or part of an award... 45 Public Welfare 4 2012-10-01 2012-10-01 false What is the impact of transferring or receiving a transferred education award on an individual's eligibility to receive additional education awards? 2530.60...

45 CFR 2530.60 - What is the impact of transferring or receiving a transferred education award on an individual's...

Code of Federal Regulations, 2014 CFR

2014-10-01

... received at the time it becomes available for an individual's use. Transferring all or part of an award... 45 Public Welfare 4 2014-10-01 2014-10-01 false What is the impact of transferring or receiving a transferred education award on an individual's eligibility to receive additional education awards? 2530.60...

45 CFR 2530.60 - What is the impact of transferring or receiving a transferred education award on an individual's...

Code of Federal Regulations, 2011 CFR

2011-10-01

... received at the time it becomes available for an individual's use. Transferring all or part of an award... 45 Public Welfare 4 2011-10-01 2011-10-01 false What is the impact of transferring or receiving a transferred education award on an individual's eligibility to receive additional education awards? 2530.60...

Pediatric Trauma Transfer Imaging Inefficiencies-Opportunities for Improvement with Cloud Technology.

PubMed

Puckett, Yana; To, Alvin

2016-01-01

This study examines the inefficiencies of radiologic imaging transfers from one hospital to the other during pediatric trauma transfers in an era of cloud based information sharing. Retrospective review of all patients transferred to a pediatric trauma center from 2008-2014 was performed. Imaging was reviewed for whether imaging accompanied the patient, whether imaging was able to be uploaded onto computer for records, whether imaging had to be repeated, and whether imaging obtained at outside hospitals (OSH) was done per universal pediatric trauma guidelines. Of the 1761 patients retrospectively reviewed, 559 met our inclusion criteria. Imaging was sent with the patient 87.7% of the time. Imaging was unable to be uploaded 31.9% of the time. CT imaging had to be repeated 1.8% of the time. CT scan was not done per universal pediatric trauma guidelines 1.2% of the time. Our study demonstrated that current imaging transfer is inefficient, leads to excess ionizing radiation, and increased healthcare costs. Universal implementation of cloud based radiology has the potential to eliminate excess ionizing radiation to children, improve patient care, and save cost to healthcare system.

Dissociable contributions of motor-execution and action-observation to intramanual transfer.

PubMed

Hayes, Spencer J; Elliott, Digby; Andrew, Matthew; Roberts, James W; Bennett, Simon J

2012-09-01

We examined the hypothesis that different processes and representations are associated with the learning of a movement sequence through motor-execution and action-observation. Following a pre-test in which participants attempted to achieve an absolute, and relative, time goal in a sequential goal-directed aiming movement, participants received either physical or observational practice with feedback. Post-test performance indicated that motor-execution and action-observation participants learned equally well. Participants then transferred to conditions where the gain between the limb movements and their visual consequences were manipulated. Under both bigger and smaller transfer conditions, motor-execution and action-observation participants exhibited similar intramanual transfer of absolute timing. However, participants in the action-observation group exhibited superior transfer of relative timing than the motor-execution group. These findings suggest that learning via action-observation is underpinned by a visual-spatial representation, while learning via motor-execution depends more on specific force-time planning (feed forward) and afferent processing associated with sensorimotor feedback. These behavioural effects are discussed with reference to neural processes associated with striatum, cerebellum and motor cortical regions (pre-motor cortex; SMA; pre-SMA).

Launching lunar missions from Space Station Freedom

NASA Technical Reports Server (NTRS)

Friedlander, Alan; Young, Archie

1990-01-01

The relative orbital motion of Space Station Freedom and the moon places practical constraints on the timing of launch/return transfer trajectories. This paper describes the timing characteristics as well as the Delta-V variations over a representative cycle of launch/return opportunities. On average, the minimum-Delta-V transfer opportunities occur at intervals of 9 days. However, there is a significant nonuniform variation in this timing interval, as well as the minimum stay time at the moon, over the short cycle (51 days) and the long cycle (18.6 years). The advantage of three-impulse transfers for extending the launch window is also described.

Dissociable effects of practice variability on learning motor and timing skills.

PubMed

Caramiaux, Baptiste; Bevilacqua, Frédéric; Wanderley, Marcelo M; Palmer, Caroline

2018-01-01

Motor skill acquisition inherently depends on the way one practices the motor task. The amount of motor task variability during practice has been shown to foster transfer of the learned skill to other similar motor tasks. In addition, variability in a learning schedule, in which a task and its variations are interweaved during practice, has been shown to help the transfer of learning in motor skill acquisition. However, there is little evidence on how motor task variations and variability schedules during practice act on the acquisition of complex motor skills such as music performance, in which a performer learns both the right movements (motor skill) and the right time to perform them (timing skill). This study investigated the impact of rate (tempo) variability and the schedule of tempo change during practice on timing and motor skill acquisition. Complete novices, with no musical training, practiced a simple musical sequence on a piano keyboard at different rates. Each novice was assigned to one of four learning conditions designed to manipulate the amount of tempo variability across trials (large or small tempo set) and the schedule of tempo change (randomized or non-randomized order) during practice. At test, the novices performed the same musical sequence at a familiar tempo and at novel tempi (testing tempo transfer), as well as two novel (but related) sequences at a familiar tempo (testing spatial transfer). We found that practice conditions had little effect on learning and transfer performance of timing skill. Interestingly, practice conditions influenced motor skill learning (reduction of movement variability): lower temporal variability during practice facilitated transfer to new tempi and new sequences; non-randomized learning schedule improved transfer to new tempi and new sequences. Tempo (rate) and the sequence difficulty (spatial manipulation) affected performance variability in both timing and movement. These findings suggest that there is a dissociable effect of practice variability on learning complex skills that involve both motor and timing constraints.

12 CFR 611.520 - Plan of transfer.

Code of Federal Regulations, 2013 CFR

2013-01-01

... the stockholders' approval; or, (4) An event occurred between the time of the vote and the transfer... 12 Banks and Banking 7 2013-01-01 2013-01-01 false Plan of transfer. 611.520 Section 611.520 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ORGANIZATION Transfer of Authorities § 611...

12 CFR 611.520 - Plan of transfer.

Code of Federal Regulations, 2010 CFR

2010-01-01

... the stockholders' approval; or, (4) An event occurred between the time of the vote and the transfer... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Plan of transfer. 611.520 Section 611.520 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ORGANIZATION Transfer of Authorities § 611...

46 CFR 13.127 - Service: General.

Code of Federal Regulations, 2013 CFR

2013-10-01

... discharged at the same time, a person may receive credit for only one transfer, one loading, and one... dates, the number and kinds of transfers the applicant has participated in, and the number of transfers... satisfaction of the signer that he or she is fully capable of supervising transfers of liquid cargo, including...

12 CFR 611.520 - Plan of transfer.

Code of Federal Regulations, 2012 CFR

2012-01-01

... the stockholders' approval; or, (4) An event occurred between the time of the vote and the transfer... 12 Banks and Banking 7 2012-01-01 2012-01-01 false Plan of transfer. 611.520 Section 611.520 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ORGANIZATION Transfer of Authorities § 611...

33 CFR 155.750 - Contents of transfer procedures.

Code of Federal Regulations, 2010 CFR

2010-07-01

...) Monitor the level of cargo in the tank; and (ii) Shut down transfer operations in time to ensure that the... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Contents of transfer procedures... (CONTINUED) POLLUTION OIL OR HAZARDOUS MATERIAL POLLUTION PREVENTION REGULATIONS FOR VESSELS Transfer...

46 CFR 13.127 - Service: General.

Code of Federal Regulations, 2012 CFR

2012-10-01

... discharged at the same time, a person may receive credit for only one transfer, one loading, and one... dates, the number and kinds of transfers the applicant has participated in, and the number of transfers... satisfaction of the signer that he or she is fully capable of supervising transfers of liquid cargo, including...

46 CFR 13.127 - Service: General.

Code of Federal Regulations, 2010 CFR

2010-10-01

... discharged at the same time, a person may receive credit for only one transfer, one loading, and one... dates, the number and kinds of transfers the applicant has participated in, and the number of transfers... satisfaction of the signer that he or she is fully capable of supervising transfers of liquid cargo, including...

12 CFR 611.520 - Plan of transfer.

Code of Federal Regulations, 2011 CFR

2011-01-01

... the stockholders' approval; or, (4) An event occurred between the time of the vote and the transfer... 12 Banks and Banking 6 2011-01-01 2011-01-01 false Plan of transfer. 611.520 Section 611.520 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ORGANIZATION Transfer of Authorities § 611...

46 CFR 13.127 - Service: General.

Code of Federal Regulations, 2011 CFR

2011-10-01

... discharged at the same time, a person may receive credit for only one transfer, one loading, and one... dates, the number and kinds of transfers the applicant has participated in, and the number of transfers... satisfaction of the signer that he or she is fully capable of supervising transfers of liquid cargo, including...

Improve the Communication, Decrease the Distance: The Investigation into Problematic Communication and Delays in Inter-Hospital Transfer of Rural Trauma Patients

ERIC Educational Resources Information Center

Avtgis, Theodore A.; Polack, E. Phillips; Martin, Matthew M.; Rossi, Daniel

2010-01-01

Time delays in the treatment and transfer of trauma patients is a contributing factor responsible for many fatalities. Time delays are more characteristic of rural trauma systems due to factors such as greater distance, and delays in accident reporting. Efforts to reduce the trauma transfer process have resulted in many changes in protocol and use…

26 CFR 1.707-6 - Disguised sales of property by partnership to partner; general rules.

Code of Federal Regulations, 2013 CFR

2013-04-01

... transferred property to the partner; by (B) The excess of the fair market value of the property at the time it... property X to A. At the time of the transfer, property X has a fair market value of $1,000,000. One year... similar to those provided in § 1.707-3 apply in determining whether a transfer of property by a...

26 CFR 1.707-6 - Disguised sales of property by partnership to partner; general rules.

Code of Federal Regulations, 2012 CFR

2012-04-01

... transferred property to the partner; by (B) The excess of the fair market value of the property at the time it... property X to A. At the time of the transfer, property X has a fair market value of $1,000,000. One year... similar to those provided in § 1.707-3 apply in determining whether a transfer of property by a...

Time-resolved studies of energy transfer from meso-tetrakis(N-methylpyridinium-4-yl)- porphyrin to 3,3'-diethyl-2,2'-thiatricarbocyanine iodide along deoxyribonucleic acid Chain.

PubMed

Kakiuchi, Toshifumi; Ito, Fuyuki; Nagamura, Toshihiko

2008-04-03

The excitation energy transfer from meso-tetrakis(N-methylpyridinium-4-yl)porphyrin (TMPyP) to 3,3'-diethyl-2,2'-thiatricarbocyanine iodide (DTTCI) along the deoxyribonucleic acid (DNA) double strand was investigated by the steady-state absorption and fluorescence measurements and time-resolved fluorescence measurements. The steady-state fluorescence spectra showed that the near-infrared fluorescence of DTTCI was strongly enhanced up to 86 times due to the energy transfer from the excited TMPyP molecule in DNA buffer solution. Furthermore, we elucidated the mechanism of fluorescence quenching and enhancement by the direct observation of energy transfer using the time-resolved measurements. The fluorescence quenching of TMPyP chiefly consists of a static component due to the formation of complex and dynamic components due to the excitation energy transfer. In a heterogeneous one-dimensional system such as a DNA chain, it was proved that the energy transfer process only carries out within the critical distance based on the Förster theory and within a threshold value estimated from the modified Stern-Volmer equation. The present results showed that DNA chain is one of the most powerful tools for nanoassemblies and will give a novel concepts of material design.

VLBI and GPS-based Time-Transfer Using CONT08 Data

NASA Technical Reports Server (NTRS)

Rieck, Carsten; Haas, Ruediger; Jaldehag, Kenneth; Jahansson, Jan

2010-01-01

One important prerequisite for geodetic Very Long Baseline Interferometry (VLBI) is the use of frequency standards with excellent short term stability. This makes VLBI stations, which are often co-located with Global Navigation Satellite System (GNSS) receiving stations, interesting for studies of time- and frequency-transfer techniques. We present an assessment of VLBI time-transfer based on the data of the two week long consecutive IVS CONT08 VLBI campaign by using GPS Carrier Phase (GPSCP). CONT08 was a 15 day long campaign in August 2008 that involved eleven VLBI stations on five continents. For CONT08 we estimated the worst case VLBI frequency link stability between the stations of Onsala and Wettzell to 1e-15 at one day. Comparisons with GPSCP confirm the VLBI results. We also identify time-transfer related challenges of the VLBI technique as used today.

Improving microalgal growth with small bubbles in a raceway pond with swing gas aerators.

PubMed

Yang, Zongbo; Cheng, Jun; Liu, Jianzhong; Zhou, Junhu; Cen, Kefa

2016-09-01

A novel swing gas aerator was developed to generate small bubbles for improving the mass transfer coefficient and microalgal growth rate in a raceway pond. A high-speed photography system (HSP) was used to measure the bubble diameter and generation time, and online precise dissolved oxygen probes and pH probes were used to measure the mass transfer coefficient and mixing time. Bubble generation time and diameter decreased by 21% and 9%, respectively, when rubber gas aerators were swung in the microalgae solution. When water pump power and gas aeration rate increased in a raceway pond with swing gas aerators and oscillating baffles (SGAOB), bubble generation time and diameter decreased but solution velocity and mass transfer coefficient increased. The mass transfer coefficient increased by 25% and the solution velocity increased by 11% when SGAOB was used, and the microalgal biomass yield increased by 18%. Copyright © 2016 Elsevier Ltd. All rights reserved.

Modeling and Simulation of Bus Dispatching Policy for Timed Transfers on Signalized Networks

NASA Astrophysics Data System (ADS)

Cho, Hsun-Jung; Lin, Guey-Shii

2007-12-01

The major work of this study is to formulate the system cost functions and to integrate the bus dispatching policy with signal control. The integrated model mainly includes the flow dispersion model for links, signal control model for nodes, and dispatching control model for transfer terminals. All such models are inter-related for transfer operations in one-center transit network. The integrated model that combines dispatching policies with flexible signal control modes can be applied to assess the effectiveness of transfer operations. It is found that, if bus arrival information is reliable, an early dispatching decision made at the mean bus arrival times is preferable. The costs for coordinated operations with slack times are relatively low at the optimal common headway when applying adaptive route control. Based on such findings, a threshold function of bus headway for justifying an adaptive signal route control under various time values of auto drivers is developed.

Improving microalgal growth with reduced diameters of aeration bubbles and enhanced mass transfer of solution in an oscillating flow field.

PubMed

Yang, Zongbo; Cheng, Jun; Lin, Richen; Zhou, Junhu; Cen, Kefa

2016-07-01

A novel oscillating gas aerator combined with an oscillating baffle was proposed to generate smaller aeration bubbles and enhance solution mass transfer, which can improve microalgal growth in a raceway pond. A high-speed photography system (HSP) was used to measure bubble diameter and generation time, and online precise dissolved oxygen probes and pH probes were used to measure mass-transfer coefficient and mixing time. Bubble diameter and generation time decreased with decreased aeration gas rate, decreased orifice diameter, and increased water velocity in the oscillating gas aerator. The optimized oscillating gas aerator decreased bubble diameter and generation time by 25% and 58%, respectively, compared with a horizontal tubular gas aerator. Using an oscillating gas aerator and an oscillating baffle in a raceway pond increased the solution mass-transfer coefficient by 15% and decreased mixing time by 32%; consequently, microalgal biomass yield increased by 19%. Copyright © 2016 Elsevier Ltd. All rights reserved.

Temporal modulation transfer functions in auditory receptor fibres of the locust ( Locusta migratoria L.).

PubMed

Prinz, P; Ronacher, B

2002-08-01

The temporal resolution of auditory receptors of locusts was investigated by applying noise stimuli with sinusoidal amplitude modulations and by computing temporal modulation transfer functions. These transfer functions showed mostly bandpass characteristics, which are rarely found in other species at the level of receptors. From the upper cut-off frequencies of the modulation transfer functions the minimum integration times were calculated. Minimum integration times showed no significant correlation to the receptor spike rates but depended strongly on the body temperature. At 20 degrees C the average minimum integration time was 1.7 ms, dropping to 0.95 ms at 30 degrees C. The values found in this study correspond well to the range of minimum integration times found in birds and mammals. Gap detection is another standard paradigm to investigate temporal resolution. In locusts and other grasshoppers application of this paradigm yielded values of the minimum detectable gap widths that are approximately twice as large than the minimum integration times reported here.

Some Operational Aspects of the International Two-Way Satellite Time and Frequency Transfer (TWSTFT) Experiment Using INTELSAT Satellites at 307 Degrees East

NASA Technical Reports Server (NTRS)

DeYoung, J. A.; McKinley, A.; Davis, J. A.; Hetzel, P.; Bauch, A.

1996-01-01

Eight laboratories are participating in an international two-way satellite time and frequency transfer (TWSTFT) experiment. Regular time and frequency transfers have been performed over a period of almost two years, including both European and transatlantic time transfers. The performance of the regular TWSTFT sessions over an extended period has demonstrated conclusively the usefulness of the TWSTFT method for routine international time and frequency comparisons. Regular measurements are performed three times per week resulting in a regular but unevenly spaced data set. A method is presented that allows an estimate of the values of delta (sub y)(gamma) to be formed from these data. In order to maximize efficient use of paid satellite time an investigation to determine the optimal length of a single TWSTFT session is presented. The optimal experiment length is determined by evaluating how long white phase modulation (PM) instabilities are the dominant noise source during the typical 300-second sampling times currently used. A detailed investigation of the frequency transfers realized via the transatlantic TWSTFT links UTC(USNO)-UTC(NPL), UTC(USNO)-UTC(PTB), and UTC(PTB)-UTC(NPL) is presented. The investigation focuses on the frequency instabilities realized, a three cornered hat resolution of the delta (sub y) (gamma) values, and a comparison of the transatlantic and inter-European determination of UTC(PTB)-UTC(NPL). Future directions of this TWSTFT experiment are outlined.

Financial time series analysis based on effective phase transfer entropy

NASA Astrophysics Data System (ADS)

Yang, Pengbo; Shang, Pengjian; Lin, Aijing

2017-02-01

Transfer entropy is a powerful technique which is able to quantify the impact of one dynamic system on another system. In this paper, we propose the effective phase transfer entropy method based on the transfer entropy method. We use simulated data to test the performance of this method, and the experimental results confirm that the proposed approach is capable of detecting the information transfer between the systems. We also explore the relationship between effective phase transfer entropy and some variables, such as data size, coupling strength and noise. The effective phase transfer entropy is positively correlated with the data size and the coupling strength. Even in the presence of a large amount of noise, it can detect the information transfer between systems, and it is very robust to noise. Moreover, this measure is indeed able to accurately estimate the information flow between systems compared with phase transfer entropy. In order to reflect the application of this method in practice, we apply this method to financial time series and gain new insight into the interactions between systems. It is demonstrated that the effective phase transfer entropy can be used to detect some economic fluctuations in the financial market. To summarize, the effective phase transfer entropy method is a very efficient tool to estimate the information flow between systems.

A parallel architecture of interpolated timing recovery for high- speed data transfer rate and wide capture-range

NASA Astrophysics Data System (ADS)

Higashino, Satoru; Kobayashi, Shoei; Yamagami, Tamotsu

2007-06-01

High data transfer rate has been demanded for data storage devices along increasing the storage capacity. In order to increase the transfer rate, high-speed data processing techniques in read-channel devices are required. Generally, parallel architecture is utilized for the high-speed digital processing. We have developed a new architecture of Interpolated Timing Recovery (ITR) to achieve high-speed data transfer rate and wide capture-range in read-channel devices for the information storage channels. It facilitates the parallel implementation on large-scale-integration (LSI) devices.

Energy transfer dynamics in strongly inhomogeneous hot-dense-matter systems

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stillman, C. R.; Nilson, P. M.; Sefkow, A. B.

Direct measurements of energy transfer across steep density and temperature gradients in a hot-dense-matter system are presented. Hot dense plasma conditions were generated by high-intensity laser irradiation of a thin-foil target containing a buried metal layer. Energy transfer to the layer was measured using picosecond time-resolved x-ray emission spectroscopy. Here, the data show two x-ray flashes in time. Fully explicit, coupled particle-in-cell and collisional-radiative atomic kinetics model predictions reproduce these observations, connecting the two x-ray flashes with staged radial energy transfer within the target.

Energy transfer dynamics in strongly inhomogeneous hot-dense-matter systems

DOE PAGES

Stillman, C. R.; Nilson, P. M.; Sefkow, A. B.; ...

2018-06-25

Direct measurements of energy transfer across steep density and temperature gradients in a hot-dense-matter system are presented. Hot dense plasma conditions were generated by high-intensity laser irradiation of a thin-foil target containing a buried metal layer. Energy transfer to the layer was measured using picosecond time-resolved x-ray emission spectroscopy. Here, the data show two x-ray flashes in time. Fully explicit, coupled particle-in-cell and collisional-radiative atomic kinetics model predictions reproduce these observations, connecting the two x-ray flashes with staged radial energy transfer within the target.

Carotenoid-to-bacteriochlorophyll energy transfer through vibronic coupling in LH2 from Phaeosprillum molischianum.

PubMed

Thyrhaug, Erling; Lincoln, Craig N; Branchi, Federico; Cerullo, Giulio; Perlík, Václav; Šanda, František; Lokstein, Heiko; Hauer, Jürgen

2018-03-01

The peripheral light-harvesting antenna complex (LH2) of purple photosynthetic bacteria is an ideal testing ground for models of structure-function relationships due to its well-determined molecular structure and ultrafast energy deactivation. It has been the target for numerous studies in both theory and ultrafast spectroscopy; nevertheless, certain aspects of the convoluted relaxation network of LH2 lack a satisfactory explanation by conventional theories. For example, the initial carotenoid-to-bacteriochlorophyll energy transfer step necessary on visible light excitation was long considered to follow the Förster mechanism, even though transfer times as short as 40 femtoseconds (fs) have been observed. Such transfer times are hard to accommodate by Förster theory, as the moderate coupling strengths found in LH2 suggest much slower transfer within this framework. In this study, we investigate LH2 from Phaeospirillum (Ph.) molischianum in two types of transient absorption experiments-with narrowband pump and white-light probe resulting in 100 fs time resolution, and with degenerate broadband 10 fs pump and probe pulses. With regard to the split Q x band in this system, we show that vibronically mediated transfer explains both the ultrafast carotenoid-to-B850 transfer, and the almost complete lack of transfer to B800. These results are beyond Förster theory, which predicts an almost equal partition between the two channels.

Ultrasound Picture Archiving And Communication Systems

NASA Astrophysics Data System (ADS)

Koestner, Ken; Hottinger, C. F.

1982-01-01

The ideal ultrasonic image communication and storage system must be flexible in order to optimize speed and minimize storage requirements. Various ultrasonic imaging modalities are quite different in data volume and speed requirements. Static imaging, for example B-Scanning, involves acquisition of a large amount of data that is averaged or accumulated in a desired manner. The image is then frozen in image memory before transfer and storage. Images are commonly a 512 x 512 point array, each point 6 bits deep. Transfer of such an image over a serial line at 9600 baud would require about three minutes. Faster transfer times are possible; for example, we have developed a parallel image transfer system using direct memory access (DMA) that reduces the time to 16 seconds. Data in this format requires 256K bytes for storage. Data compression can be utilized to reduce these requirements. Real-time imaging has much more stringent requirements for speed and storage. The amount of actual data per frame in real-time imaging is reduced due to physical limitations on ultrasound. For example, 100 scan lines (480 points long, 6 bits deep) can be acquired during a frame at a 30 per second rate. In order to transmit and save this data at a real-time rate requires a transfer rate of 8.6 Megabaud. A real-time archiving system would be complicated by the necessity of specialized hardware to interpolate between scan lines and perform desirable greyscale manipulation on recall. Image archiving for cardiology and radiology would require data transfer at this high rate to preserve temporal (cardiology) and spatial (radiology) information.

47 CFR 76.502 - Time limits applicable to franchise authority consideration of transfer applications.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Time limits applicable to franchise authority... Cable Systems § 76.502 Time limits applicable to franchise authority consideration of transfer applications. (a) A franchise authority shall have 120 days from the date of submission of a completed FCC Form...

47 CFR 76.502 - Time limits applicable to franchise authority consideration of transfer applications.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 47 Telecommunication 4 2014-10-01 2014-10-01 false Time limits applicable to franchise authority... Cable Systems § 76.502 Time limits applicable to franchise authority consideration of transfer applications. (a) A franchise authority shall have 120 days from the date of submission of a completed FCC Form...

Time and Frequency Activities at the U.S. Naval Observatory

DTIC Science & Technology

2008-12-01

USA (Institute of Navigation, Alexandria, Virginia). [22] D. Kirchner, 1999, “Two Way Satellite Time and Frequency Transfer ( TWSTFT ),” Review of...Shäfer, and A. Pawlitzki, 2005, “Development of Carrier- Phase-Based Two-Way Satellite Time and Frequency Transfer ( TWSTFT ),” in Proceedings of the 36th

29 CFR 101.21 - Procedure after hearing.

Code of Federal Regulations, 2010 CFR

2010-07-01

... entertain motions for oral argument. The Regional Director may at any time transfer the case to the Board... the right to transfer the case to the Board for decision at any time prior to disposition of the... formal hearing; pass upon rulings made at hearings and requests for extensions of time for filing of...

29 CFR 101.21 - Procedure after hearing.

Code of Federal Regulations, 2011 CFR

2011-07-01

... entertain motions for oral argument. The Regional Director may at any time transfer the case to the Board... the right to transfer the case to the Board for decision at any time prior to disposition of the... formal hearing; pass upon rulings made at hearings and requests for extensions of time for filing of...

29 CFR 101.21 - Procedure after hearing.

Code of Federal Regulations, 2014 CFR

2014-07-01

... entertain motions for oral argument. The Regional Director may at any time transfer the case to the Board... or after a hearing, with the right to transfer the case to the Board for decision at any time prior... formal hearing; pass upon rulings made at hearings and requests for extensions of time for filing of...

Factors affecting the efficiency of foal production in a commercial oocyte transfer program.

PubMed

Riera, Fernando L; Roldán, Jaime E; Gomez, José; Hinrichs, Katrin

2016-04-01

Transfer of donor oocytes to the oviducts of inseminated recipient mares (oocyte transfer, OT) presents a valuable method for production of foals from otherwise infertile mares. Little information is available, however, on factors affecting success of OT in a clinical setting. We report the findings over three breeding seasons in a commercial OT program developed at an equine embryo transfer center in Argentina. Overall, 25 mares were enrolled, and 197 follicle aspiration procedures were performed. The average mare age was 23 years. Follicle aspiration was performed with a needle placed through the flank; the oocyte recovery rate per follicle aspirated was 149 of 227 (66%). Induction of donor ovulation with deslorelin + hCG resulted in a significantly higher oocyte recovery rate than did induction with deslorelin alone (75% vs. 58%). There was no significant effect of mare age (17-20, 21-24, or 25-27 years) on oocyte recovery rate. Twelve oocytes were degenerating or lost during handling; transfer of the remaining 137 oocytes resulted in 42 pregnancies (31%) at 14 days. Of these, 32 (23% per transfer) went on to produce a foal or ongoing pregnancy. Transfer of oocytes recovered with a compact cumulus, without donor follicle induction, or less than 20 hours after induction was associated with a significantly reduced pregnancy rate (1/16, 6%), as was use of noncycling, hormone-treated recipients (2/22, 9%). To evaluate management factors affecting pregnancy rate, noncycling, hormone-treated recipients were disregarded, and only procedures using mature (expanded cumulus) oocytes recovered and transferred on the standard schedule (n = 99) were included. Mare age did not significantly affect rates of pregnancy or pregnancy loss. Similar pregnancy rates were obtained using recipients inseminated from 1 to 27 hours before transfer. Counterintuitively, insemination of recipients immediately (1-2 hours) after aspiration of the recipient follicle was associated with a high pregnancy rate (10/12, 83%). There was no significant effect on pregnancy rate of donor induction agent, the time the oocyte was in culture (2-20 hours) before transfer, time from recipient insemination to transfer, or total time from donor induction to transfer (32-45 hours). These findings establish that OT is robust, in that it is effective over a wide variation in timing of the different components involved, and can be successfully developed in a private embryo transfer practice. Copyright © 2016 Elsevier Inc. All rights reserved.

Revealing the secret life of pre-implantation embryos by time-lapse monitoring: A review

PubMed Central

Faramarzi, Azita; Khalili, Mohammad Ali; Micara, Giulietta; Agha-Rahimi, Azam

2017-01-01

High implantation success following in vitro fertilization cycles are achieved via the transfer of embryos with the highest developmental competence. Multiple pregnancies as a result of the transfer of several embryos per cycle accompany with various complication. Thus, single-embryo transfer (SET) is the preferred practice in assisted reproductive technique (ART) treatment. In order to improve the pregnancy rate for SET, embryologists need reliable biomarkers to aid their selection of embryos with the highest developmental potential. Time-lapse technology is a noninvasive alternative conventional microscopic assessment. It provides uninterrupted and continues the survey of embryo development to transfer day. Today, there are four time-lapse systems that are commercially available for ART centers. In world and Iran, the first time lapse babies were born in 2010 and 2015, respectively, conceived by SET. Here, we review the use of time-lapse monitoring in the observation of embryogenesis as well as its role in SET. Although, the findings from our review support common use of time-lapse monitoring in ART centers; but, future large studies assessing this system in well-designed trials are necessary. PMID:28744520

Energy transfer from InGaN quantum wells to Au nanoclusters via optical waveguiding.

PubMed

Shu, G W; Lin, C C; Lin, H T; Lin, T N; Shen, J L; Chiu, C H; Li, Z Y; Kuo, H C; Lin, C C; Wang, S C; Lin, C A J; Chang, W H

2011-03-14

We present the first observation of resonance energy transfer from InGaN quantum wells to Au nanoclusters via optical waveguiding. Steady-state and time-resolved photoluminescence measurements provide conclusive evidence of resonance energy transfer and obtain an optimum transfer efficiency of ~72%. A set of rate equations is successfully used to model the kinetics of resonance energy transfer.

The Use of the Self-Standing Turning Transfer Device to Perform Bed-To-Chair Transfers Reduces Physical Stress among Caregivers of Older Patients in a Middle-Income Developing Country.

PubMed

Goh, Choon Hian; Muslimah Y; Ng, Siew-Cheok; Subramanian, Pathmawathi; Tan, Maw Pin

2014-01-01

Manual transfer of elderly patients remains commonplace in many developing countries because the use of lifting equipment, such as hoists, is often considered unaffordable luxuries. The aim of this study was, therefore, to evaluate the usage and potential benefits of a low-cost, mechanical turning transfer device among elderly patients and their caregivers on a geriatric ward in a developing country in South East Asia. Fifty-six inpatients, aged 66-92 years, on a geriatric ward, and their caregivers were recruited. Participants were asked to transfer from bed-to-chair transfer with manual assistance, and the task was repeated using the Self-standing Turning Transfer Device (STurDi). The time taken to perform manual transfers and STurDi-assisted transfers was recorded. Physical strain was assessed using the perceived physical stress-rating tool for caregivers with and without the use of the device. User satisfaction was evaluated using the usefulness, satisfaction, and ease of use questionnaire. There was a significant reduction in transfer-time with manual transfers compared to STurDi-assisted transfers [mean (SD) = 48.39 (13.98) vs. 36.23 (10.96); p ≤ 0.001]. The physical stress rating was significantly lower in STurDi-aided transfers compared to manual transfers, shoulder [median (interquartile range) = 0 (1) vs. 4 (3); p = 0.001], upper back [0 (0) vs. 5 (4); p = 0.001], lower back [0 (1) vs. 5 (3), p = 0.001], whole body [1 (2) vs. 4 (3), p = 0.001], and knee [0 (1) vs. 1 (4), p = 0.001]. In addition, majority of patients and caregivers definitely or strongly agreed that the device was useful, saved time, and was easy to use. We have therefore demonstrated in a setting where manual handling was commonly performed that a low-cost mechanical transfer device reduced caregiver strain and was well received by older patients and caregivers.

The Use of the Self-Standing Turning Transfer Device to Perform Bed-To-Chair Transfers Reduces Physical Stress among Caregivers of Older Patients in a Middle-Income Developing Country

PubMed Central

Goh, Choon Hian; Muslimah Y; Ng, Siew-Cheok; Subramanian, Pathmawathi; Tan, Maw Pin

2014-01-01

Manual transfer of elderly patients remains commonplace in many developing countries because the use of lifting equipment, such as hoists, is often considered unaffordable luxuries. The aim of this study was, therefore, to evaluate the usage and potential benefits of a low-cost, mechanical turning transfer device among elderly patients and their caregivers on a geriatric ward in a developing country in South East Asia. Fifty-six inpatients, aged 66–92 years, on a geriatric ward, and their caregivers were recruited. Participants were asked to transfer from bed-to-chair transfer with manual assistance, and the task was repeated using the Self-standing Turning Transfer Device (STurDi). The time taken to perform manual transfers and STurDi-assisted transfers was recorded. Physical strain was assessed using the perceived physical stress-rating tool for caregivers with and without the use of the device. User satisfaction was evaluated using the usefulness, satisfaction, and ease of use questionnaire. There was a significant reduction in transfer-time with manual transfers compared to STurDi-assisted transfers [mean (SD) = 48.39 (13.98) vs. 36.23 (10.96); p ≤ 0.001]. The physical stress rating was significantly lower in STurDi-aided transfers compared to manual transfers, shoulder [median (interquartile range) = 0 (1) vs. 4 (3); p = 0.001], upper back [0 (0) vs. 5 (4); p = 0.001], lower back [0 (1) vs. 5 (3), p = 0.001], whole body [1 (2) vs. 4 (3), p = 0.001], and knee [0 (1) vs. 1 (4), p = 0.001]. In addition, majority of patients and caregivers definitely or strongly agreed that the device was useful, saved time, and was easy to use. We have therefore demonstrated in a setting where manual handling was commonly performed that a low-cost mechanical transfer device reduced caregiver strain and was well received by older patients and caregivers. PMID:25593906

Study on transfer optimization of urban rail transit and conventional public transport

NASA Astrophysics Data System (ADS)

Wang, Jie; Sun, Quan Xin; Mao, Bao Hua

2018-04-01

This paper mainly studies the time optimization of feeder connection between rail transit and conventional bus in a shopping center. In order to achieve the goal of connecting rail transportation effectively and optimizing the convergence between the two transportations, the things had to be done are optimizing the departure intervals, shorting the passenger transfer time and improving the service level of public transit. Based on the goal that has the minimum of total waiting time of passengers and the number of start of classes, establish the optimizing model of bus connecting of departure time. This model has some constrains such as transfer time, load factor, and the convergence of public transportation grid spacing. It solves the problems by using genetic algorithms.

Satellite scheduling considering maximum observation coverage time and minimum orbital transfer fuel cost

NASA Astrophysics Data System (ADS)

Zhu, Kai-Jian; Li, Jun-Feng; Baoyin, He-Xi

2010-01-01

In case of an emergency like the Wenchuan earthquake, it is impossible to observe a given target on earth by immediately launching new satellites. There is an urgent need for efficient satellite scheduling within a limited time period, so we must find a way to reasonably utilize the existing satellites to rapidly image the affected area during a short time period. Generally, the main consideration in orbit design is satellite coverage with the subsatellite nadir point as a standard of reference. Two factors must be taken into consideration simultaneously in orbit design, i.e., the maximum observation coverage time and the minimum orbital transfer fuel cost. The local time of visiting the given observation sites must satisfy the solar radiation requirement. When calculating the operational orbit elements as optimal parameters to be evaluated, we obtain the minimum objective function by comparing the results derived from the primer vector theory with those derived from the Hohmann transfer because the operational orbit for observing the disaster area with impulse maneuvers is considered in this paper. The primer vector theory is utilized to optimize the transfer trajectory with three impulses and the Hohmann transfer is utilized for coplanar and small inclination of non-coplanar cases. Finally, we applied this method in a simulation of the rescue mission at Wenchuan city. The results of optimizing orbit design with a hybrid PSO and DE algorithm show that the primer vector and Hohmann transfer theory proved to be effective methods for multi-object orbit optimization.

Relativistic theory for time and frequency transfer to order c-3

NASA Astrophysics Data System (ADS)

Blanchet, L.; Salomon, C.; Teyssandier, P.; Wolf, P.

2001-04-01

This paper is motivated by the current development of several space missions (e.g. ACES on International Space Station) that will use Earth-orbit laser cooled atomic clocks, providing a time-keeping accuracy of the order of 5 10-17 in fractional frequency. We show that to such accuracy, the theory of frequency transfer between Earth and Space must be extended from the currently known relativistic order 1/c2 (which has been needed in previous space experiments such as GP-A) to the next relativistic correction of order 1/c3. We find that the frequency transfer includes the first and second-order Doppler contributions, the Einstein gravitational red-shift and, at the order 1/c3, a mixture of these effects. As for the time transfer, it contains the standard Shapiro time delay, and we present an expression also including the first and second-order Sagnac corrections. Higher-order relativistic corrections, at least {cal O}(1/c4), are numerically negligible for time and frequency transfers in these experiments, being for instance of order 10-20 in fractional frequency. Particular attention is paid to the problem of the frequency transfer in the two-way experimental configuration. In this case we find a simple theoretical expression which extends the previous formula (Vessot et al. \\cite{VessotLevine}) to the next order 1/c3. In the Appendix we present the detailed proofs of all the formulas which will be needed in such experiments.

Studies on Instabilities in Long-Baseline Two-Way Satellite Time and Frequency Transfer (TWSTFT) Including a Troposphere Delay Model

DTIC Science & Technology

2007-11-01

TRANSFER ( TWSTFT ) INCLUDING A TROPOSPHERE DELAY MODEL D. Piester, A. Bauch Physikalisch-Technische Bundesanstalt (PTB) Bundesallee 100...Abstract Two-way satellite time and frequency transfer ( TWSTFT ) is one of the leading techniques for remote comparisons of atomic frequency standards...nanosecond level. These achievements are due to the fact that many delay variations of the transmitted signals cancel out in TWSTFT because of the

26 CFR 1.707-6 - Disguised sales of property by partnership to partner; general rules.

Code of Federal Regulations, 2010 CFR

2010-04-01

... transferred property to the partner; by (B) The excess of the fair market value of the property at the time it... property X to A. At the time of the transfer, property X has a fair market value of $1,000,000. One year... provided in § 1.707-3 apply in determining whether a transfer of property by a partnership to a partner and...

Facial Performance Transfer via Deformable Models and Parametric Correspondence.

PubMed

Asthana, Akshay; de la Hunty, Miles; Dhall, Abhinav; Goecke, Roland

2012-09-01

The issue of transferring facial performance from one person's face to another's has been an area of interest for the movie industry and the computer graphics community for quite some time. In recent years, deformable face models, such as the Active Appearance Model (AAM), have made it possible to track and synthesize faces in real time. Not surprisingly, deformable face model-based approaches for facial performance transfer have gained tremendous interest in the computer vision and graphics community. In this paper, we focus on the problem of real-time facial performance transfer using the AAM framework. We propose a novel approach of learning the mapping between the parameters of two completely independent AAMs, using them to facilitate the facial performance transfer in a more realistic manner than previous approaches. The main advantage of modeling this parametric correspondence is that it allows a "meaningful" transfer of both the nonrigid shape and texture across faces irrespective of the speakers' gender, shape, and size of the faces, and illumination conditions. We explore linear and nonlinear methods for modeling the parametric correspondence between the AAMs and show that the sparse linear regression method performs the best. Moreover, we show the utility of the proposed framework for a cross-language facial performance transfer that is an area of interest for the movie dubbing industry.

Charge migration and charge transfer in molecular systems

PubMed Central

Wörner, Hans Jakob; Arrell, Christopher A.; Banerji, Natalie; Cannizzo, Andrea; Chergui, Majed; Das, Akshaya K.; Hamm, Peter; Keller, Ursula; Kraus, Peter M.; Liberatore, Elisa; Lopez-Tarifa, Pablo; Lucchini, Matteo; Meuwly, Markus; Milne, Chris; Moser, Jacques-E.; Rothlisberger, Ursula; Smolentsev, Grigory; Teuscher, Joël; van Bokhoven, Jeroen A.; Wenger, Oliver

2017-01-01

The transfer of charge at the molecular level plays a fundamental role in many areas of chemistry, physics, biology and materials science. Today, more than 60 years after the seminal work of R. A. Marcus, charge transfer is still a very active field of research. An important recent impetus comes from the ability to resolve ever faster temporal events, down to the attosecond time scale. Such a high temporal resolution now offers the possibility to unravel the most elementary quantum dynamics of both electrons and nuclei that participate in the complex process of charge transfer. This review covers recent research that addresses the following questions. Can we reconstruct the migration of charge across a molecule on the atomic length and electronic time scales? Can we use strong laser fields to control charge migration? Can we temporally resolve and understand intramolecular charge transfer in dissociative ionization of small molecules, in transition-metal complexes and in conjugated polymers? Can we tailor molecular systems towards specific charge-transfer processes? What are the time scales of the elementary steps of charge transfer in liquids and nanoparticles? Important new insights into each of these topics, obtained from state-of-the-art ultrafast spectroscopy and/or theoretical methods, are summarized in this review. PMID:29333473

36 CFR 9.34 - Transfers of interest.

Code of Federal Regulations, 2011 CFR

2011-07-01

... transfer in accordance with paragraph (a). At that time the Superintendent will prohibit the new owner from... 36 Parks, Forests, and Public Property 1 2011-07-01 2011-07-01 false Transfers of interest. 9.34... MINERALS MANAGEMENT Non-Federal Oil and Gas Rights § 9.34 Transfers of interest. (a) Whenever an owner of...

5 CFR 352.903 - Effecting a detail or transfer.

Code of Federal Regulations, 2014 CFR

2014-01-01

... detail or transfer. (a) Authority to approve. The head of an agency may enter into written agreements with the Commission for the detail or voluntary transfer, for set periods of time, of agency employees... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Effecting a detail or transfer. 352.903...

5 CFR 352.903 - Effecting a detail or transfer.

Code of Federal Regulations, 2010 CFR

2010-01-01

... detail or transfer. (a) Authority to approve. The head of an agency may enter into written agreements with the Commission for the detail or voluntary transfer, for set periods of time, of agency employees... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Effecting a detail or transfer. 352.903...

36 CFR 9.34 - Transfers of interest.

Code of Federal Regulations, 2010 CFR

2010-07-01

... transfer in accordance with paragraph (a). At that time the Superintendent will prohibit the new owner from... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Transfers of interest. 9.34... MINERALS MANAGEMENT Non-Federal Oil and Gas Rights § 9.34 Transfers of interest. (a) Whenever an owner of...

36 CFR 9.34 - Transfers of interest.

Code of Federal Regulations, 2014 CFR

2014-07-01

... transfer in accordance with paragraph (a). At that time the Superintendent will prohibit the new owner from... 36 Parks, Forests, and Public Property 1 2014-07-01 2014-07-01 false Transfers of interest. 9.34... MINERALS MANAGEMENT Non-Federal Oil and Gas Rights § 9.34 Transfers of interest. (a) Whenever an owner of...

31 CFR 205.33 - How are funds transfers processed?

Code of Federal Regulations, 2014 CFR

2014-07-01

... EFFICIENT FEDERAL-STATE FUNDS TRANSFERS Rules Applicable to Federal Assistance Programs Not Included in a Treasury-State Agreement § 205.33 How are funds transfers processed? (a) A State must minimize the time... 31 Money and Finance: Treasury 2 2014-07-01 2014-07-01 false How are funds transfers processed...

23 CFR 1215.7 - Transfer of funds.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 23 Highways 1 2010-04-01 2010-04-01 false Transfer of funds. 1215.7 Section 1215.7 Highways... TRANSPORTATION GUIDELINES USE OF SAFETY BELTS-COMPLIANCE AND TRANSFER-OF-FUNDS PROCEDURES § 1215.7 Transfer of funds. (a) Except as provided in paragraph (b) of this section, if at any time in a fiscal year...

36 CFR 9.34 - Transfers of interest.

Code of Federal Regulations, 2013 CFR

2013-07-01

... transfer in accordance with paragraph (a). At that time the Superintendent will prohibit the new owner from... 36 Parks, Forests, and Public Property 1 2013-07-01 2013-07-01 false Transfers of interest. 9.34... MINERALS MANAGEMENT Non-Federal Oil and Gas Rights § 9.34 Transfers of interest. (a) Whenever an owner of...

31 CFR 205.33 - How are funds transfers processed?

Code of Federal Regulations, 2012 CFR

2012-07-01

... EFFICIENT FEDERAL-STATE FUNDS TRANSFERS Rules Applicable to Federal Assistance Programs Not Included in a Treasury-State Agreement § 205.33 How are funds transfers processed? (a) A State must minimize the time... 31 Money and Finance:Treasury 2 2012-07-01 2012-07-01 false How are funds transfers processed? 205...

36 CFR 9.34 - Transfers of interest.

Code of Federal Regulations, 2012 CFR

2012-07-01

... transfer in accordance with paragraph (a). At that time the Superintendent will prohibit the new owner from... 36 Parks, Forests, and Public Property 1 2012-07-01 2012-07-01 false Transfers of interest. 9.34... MINERALS MANAGEMENT Non-Federal Oil and Gas Rights § 9.34 Transfers of interest. (a) Whenever an owner of...

5 CFR 352.903 - Effecting a detail or transfer.

Code of Federal Regulations, 2011 CFR

2011-01-01

... detail or transfer. (a) Authority to approve. The head of an agency may enter into written agreements with the Commission for the detail or voluntary transfer, for set periods of time, of agency employees... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Effecting a detail or transfer. 352.903...

5 CFR 352.903 - Effecting a detail or transfer.

Code of Federal Regulations, 2012 CFR

2012-01-01

... detail or transfer. (a) Authority to approve. The head of an agency may enter into written agreements with the Commission for the detail or voluntary transfer, for set periods of time, of agency employees... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Effecting a detail or transfer. 352.903...

31 CFR 205.33 - How are funds transfers processed?

Code of Federal Regulations, 2013 CFR

2013-07-01

... EFFICIENT FEDERAL-STATE FUNDS TRANSFERS Rules Applicable to Federal Assistance Programs Not Included in a Treasury-State Agreement § 205.33 How are funds transfers processed? (a) A State must minimize the time... 31 Money and Finance:Treasury 2 2013-07-01 2013-07-01 false How are funds transfers processed? 205...

20 CFR 702.104 - Transfer of individual case file.

Code of Federal Regulations, 2012 CFR

2012-04-01

... Provisions Administration § 702.104 Transfer of individual case file. (a) At any time after a claim is filed... 20 Employees' Benefits 4 2012-04-01 2012-04-01 false Transfer of individual case file. 702.104... Director, transfer such case to the district director in another compensation district for the purpose of...

5 CFR 352.903 - Effecting a detail or transfer.

Code of Federal Regulations, 2013 CFR

2013-01-01

... detail or transfer. (a) Authority to approve. The head of an agency may enter into written agreements with the Commission for the detail or voluntary transfer, for set periods of time, of agency employees... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Effecting a detail or transfer. 352.903...

31 CFR 205.33 - How are funds transfers processed?

Code of Federal Regulations, 2011 CFR

2011-07-01

... EFFICIENT FEDERAL-STATE FUNDS TRANSFERS Rules Applicable to Federal Assistance Programs Not Included in a Treasury-State Agreement § 205.33 How are funds transfers processed? (a) A State must minimize the time... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false How are funds transfers processed? 205...

10 CFR 32.12 - Same: Records and material transfer reports.

Code of Federal Regulations, 2010 CFR

2010-01-01

... product or material at time of transfer of the byproduct material by the licensee. (c)(1) The licensee... 10 Energy 1 2010-01-01 2010-01-01 false Same: Records and material transfer reports. 32.12 Section 32.12 Energy NUCLEAR REGULATORY COMMISSION SPECIFIC DOMESTIC LICENSES TO MANUFACTURE OR TRANSFER...

20 CFR 702.104 - Transfer of individual case file.

Code of Federal Regulations, 2011 CFR

2011-04-01

... Provisions Administration § 702.104 Transfer of individual case file. (a) At any time after a claim is filed... 20 Employees' Benefits 3 2011-04-01 2011-04-01 false Transfer of individual case file. 702.104... Director, transfer such case to the district director in another compensation district for the purpose of...

The Transfer Indicator.

ERIC Educational Resources Information Center

Cohen, Arthur M.

1991-01-01

Inconsistencies in the definition of transfer from two-year to four-year institutions and in the calculation of the transfer rate have given rise to incongruous findings. For example, one researcher in 1989 reported a transfer rate of less than 12% for the colleges in Illinois at the same time that the Chancellor's Office of the California…

New Developments in College Transfer. ERIC/Higher Education Research Currents.

ERIC Educational Resources Information Center

Trivett, David A.

The issues and problems associated with transferring from one educational institution to another have existed for some time. This article reports on developments that may increase the flexibility and improve the efficiency of college-university transfer. Following a discussion of the numbers, types, and problems of transfer students, emphasis is…

Informal Care and Inter-vivos Transfers: Results from the National Longitudinal Survey of Mature Women

PubMed Central

Norton, Edward C.; Nicholas, Lauren H.; Huang, Sean Sheng-Hsiu

2013-01-01

Informal care is the largest source of long-term care for elderly, surpassing home health care and nursing home care. By definition, informal care is unpaid. It remains a puzzle why so many adult children give freely of their time. Transfers of time to the older generation may be balanced by financial transfers going to the younger generation. This leads to the question of whether informal care and inter-vivos transfers are causally related. We analyze data from the 1999 and 2003 waves of National Longitudinal Survey of Mature Women. We examine whether the elderly parents give more inter-vivos monetary transfers to adult children who provide informal care, by examining both the extensive and intensive margins of financial transfers and of informal care. We find statistically significant results that a child who provides informal care is more likely to receive inter-vivos transfers than a sibling who does not. If a child does provide care, there is no statistically significant effect on the amount of the transfer. PMID:25285181

Transient radiative transfer in a scattering slab considering polarization.

PubMed

Yi, Hongliang; Ben, Xun; Tan, Heping

2013-11-04

The characteristics of the transient and polarization must be considered for a complete and correct description of short-pulse laser transfer in a scattering medium. A Monte Carlo (MC) method combined with a time shift and superposition principle is developed to simulate transient vector (polarized) radiative transfer in a scattering medium. The transient vector radiative transfer matrix (TVRTM) is defined to describe the transient polarization behavior of short-pulse laser propagating in the scattering medium. According to the definition of reflectivity, a new criterion of reflection at Fresnel surface is presented. In order to improve the computational efficiency and accuracy, a time shift and superposition principle is applied to the MC model for transient vector radiative transfer. The results for transient scalar radiative transfer and steady-state vector radiative transfer are compared with those in published literatures, respectively, and an excellent agreement between them is observed, which validates the correctness of the present model. Finally, transient radiative transfer is simulated considering the polarization effect of short-pulse laser in a scattering medium, and the distributions of Stokes vector in angular and temporal space are presented.

Clinical impact of an inter-hospital transfer strategy in patients with ST-elevation myocardial infarction undergoing primary angioplasty: the Emilia-Romagna ST-segment elevation acute myocardial infarction network.

PubMed

Manari, Antonio; Ortolani, Paolo; Guastaroba, Paolo; Casella, Gianni; Vignali, Luigi; Varani, Elisabetta; Piovaccari, Giancarlo; Guiducci, Vincenzo; Percoco, Gianfranco; Tondi, Stefano; Passerini, Francesco; Santarelli, Andrea; Marzocchi, Antonio

2008-08-01

This study sought to evaluate the impact of an inter-hospital transfer strategy on treatment times and in-hospital and 1 year cardiac mortality of patients with ST-segment elevation acute myocardial infarction (STEMI) undergoing primary percutaneous intervention (p-PCI) in the Italian region of Emilia-Romagna, where an efficient region-wide system for reperfusion has been established. 3296 patients with STEMI, undergoing on-site p-PCI (2444 patients) (OS group) or p-PCI after inter-hospital transfer (852 patients) (T group) between 1 January 2004 and 30 June 2006 in the Italian region of Emilia-Romagna, were considered. During the study period, the number of patients undergoing p-PCI increased both for patients admitted to interventional centres and for those admitted to peripheral hospitals. At the same time, the proportion of patients with STEMI initially admitted to peripheral hospitals and not transferred and the door-to-balloon time delays of transfer patients decreased. In spite of longer door-to-balloon delay in the transfer group [112 min (86-147) vs. 71 min (46-104)], in-hospital cardiac mortality (OS 7.0 vs. T 5.4%, P = 0.10) did not significantly differ between the two groups. After multivariable adjustment, the transfer strategy was not associated with increased risk of in-hospital [odds ratio 0.956; 95% confidence interval (CI) 0.633-1.442] and 1 year (hazard ratio 0.817; 95% CI 0.617-1.085) cardiac mortality. This study, concerning an established STEMI regional network, suggests that a strategy of inter-hospital transfer for p-PCI, when supported by an organized system of care, may be applied with rapid reperfusion times and favourable short- and long-term clinical outcomes.

Improving the Transition of Care in Patients Transferred Through the Ochsner Medical Center Transfer Center

PubMed Central

Amedee, Ronald G.; Maronge, Genevieve F.; Pinsky, William W.

2012-01-01

Background Patient transfers from other hospitals within the Ochsner Health System to the main campus are coordinated through a Transfer Center that was established in fall 2008. We analyzed the transfer process to assess distinct opportunities to enhance the overall transition of patient care. Methods We surveyed internal medicine residents and nocturnists to determine their satisfaction with transfers in terms of safety, efficiency, and usefulness of information provided at the time of transfer. After a kaizen event at which complementary goals for the institution and members of the study team were recognized and implemented, we resurveyed the group to evaluate improvement in the transfer process. Results The preintervention average satisfaction score was 1.18 (SD=0.46), while the postintervention score was 3.7 (SD=1.01). A t test showed a significant difference in the average scores between the preintervention and postintervention surveys (P<0.0001). Conclusions By including residents in the transfer calls (a result of the kaizen event), data were collected that facilitated fewer and higher quality handoffs that were performed in less time. In addition, the process resulted in increased awareness of the value of resident participation in institutional quality improvement projects. PMID:23267257

Improving the transition of care in patients transferred through the ochsner medical center transfer center.

PubMed

Amedee, Ronald G; Maronge, Genevieve F; Pinsky, William W

2012-01-01

Patient transfers from other hospitals within the Ochsner Health System to the main campus are coordinated through a Transfer Center that was established in fall 2008. We analyzed the transfer process to assess distinct opportunities to enhance the overall transition of patient care. We surveyed internal medicine residents and nocturnists to determine their satisfaction with transfers in terms of safety, efficiency, and usefulness of information provided at the time of transfer. After a kaizen event at which complementary goals for the institution and members of the study team were recognized and implemented, we resurveyed the group to evaluate improvement in the transfer process. The preintervention average satisfaction score was 1.18 (SD=0.46), while the postintervention score was 3.7 (SD=1.01). A t test showed a significant difference in the average scores between the preintervention and postintervention surveys (P<0.0001). By including residents in the transfer calls (a result of the kaizen event), data were collected that facilitated fewer and higher quality handoffs that were performed in less time. In addition, the process resulted in increased awareness of the value of resident participation in institutional quality improvement projects.

The effect of the number of transferred embryos, the interval between nuclear transfer and embryo transfer, and the transfer pattern on pig cloning efficiency.

PubMed

Rim, Chol Ho; Fu, Zhixin; Bao, Lei; Chen, Haide; Zhang, Dan; Luo, Qiong; Ri, Hak Chol; Huang, Hefeng; Luan, Zhidong; Zhang, Yan; Cui, Chun; Xiao, Lei; Jong, Ui Myong

2013-12-01

To improve the efficiency of producing cloned pigs, we investigated the influence of the number of transferred embryos, the culturing interval between nuclear transfer (NT) and embryo transfer, and the transfer pattern (single oviduct or double oviduct) on cloning efficiency. The results demonstrated that transfer of either 150-200 or more than 200NT embryos compared to transfer of 100-150 embryos resulted in a significantly higher pregnancy rate (48 ± 16, 50 ± 16 vs. 29 ± 5%, p<0.05) and average litter size (4.1 ± 2.3, 7 ± 3.6 vs. 2.5 ± 0.5). In vitro culture of reconstructed embryos for a longer time (40 h vs. 20 h) resulted in higher (p<0.05) pregnancy rate (44 ± 9 vs. 31 ± 3%) and delivery rate (44 ± 9 vs. 25 ± 9%). Furthermore, double oviductal transfer dramatically increased pregnancy rate (83 ± 6 vs. 27+8%, p<0.05), delivery rate (75 ± 2 vs. 27+8%, p<0.05) and average litter size (6.5 ± 2.8 vs. 2.6 ± 1.2) compared to single oviductal transfer. Our study demonstrated that an improvement in pig cloning efficiency is achieved by adjusting the number and in vitro culture time of reconstructed embryos as well as the embryo transfer pattern. Copyright © 2013 Elsevier B.V. All rights reserved.

Managing the risk of non-indigenous marine species transfer in Singapore using a study of vessel movement.

PubMed

Lim, Chin Sing; Leong, Yi Lin; Tan, Koh Siang

2017-02-15

Shipping is recognized as a major vector for the global transfer of non-indigenous marine species (NIMS). As a major transshipment port, Singapore can minimize the risk of NIMS transfer by implementing pragmatic management strategies, such as using vessel movement information to assess the risk of NIMS transfer. Findings from vessel movement information in a major port terminal in Singapore showed that vessel residence time is short, with >92% of vessels spending seven days or less. There was little variation in vessel residence time to vessel arrival numbers, while the top three last ports of call were found to be from regional ports. Using two key features obtained from vessel movement records, 1) vessel residence time and 2) biogeographic origin of the vessels' last port of call, a simple risk assessment matrix was constructed and applied to assess the level of risk of NIMS transfer by transiting vessels. Copyright © 2016 Elsevier Ltd. All rights reserved.

Underlying neural alpha frequency patterns associated with intra-hemispheric inhibition during an interhemispheric transfer task.

PubMed

Simon-Dack, Stephanie L; Kraus, Brian; Walter, Zachary; Smith, Shelby; Cadle, Chelsea

2018-05-18

Interhemispheric transfer measured via differences in right- or left-handed motoric responses to lateralized visual stimuli, known as the crossed-uncrossed difference (CUD), is one way of identifying patterns of processing that are vital for understanding the transfer of neural signals. Examination of interhemispheric transfer by means of the CUD is not entirely explained by simple measures of response time. Multiple processes contribute to wide variability observed in CUD reaction times. Prior research has suggested that intra-hemispheric inhibitory processes may be involved in regulation of speed of transfer. Our study examined electroencephalography recordings and time-locked alpha frequency activity while 18 participants responded to lateralized targets during performance of the Poffenberger Paradigm. Our results suggest that there are alpha frequency differences at fronto-central lateral electrodes based on target, hand-of-response, and receiving hemisphere. These findings suggest that early motoric inhibitory mechanisms may help explain the wide range of variability typically seen with the CUD. Copyright © 2018 Elsevier B.V. All rights reserved.

Calibration of Galileo signals for time metrology.

PubMed

Defraigne, Pascale; Aerts, Wim; Cerretto, Giancarlo; Cantoni, Elena; Sleewaegen, Jean-Marie

2014-12-01

Using global navigation satellite system (GNSS) signals for accurate timing and time transfer requires the knowledge of all electric delays of the signals inside the receiving system. GNSS stations dedicated to timing or time transfer are classically calibrated only for Global Positioning System (GPS) signals. This paper proposes a procedure to determine the hardware delays of a GNSS receiving station for Galileo signals, once the delays of the GPS signals are known. This approach makes use of the broadcast satellite inter-signal biases, and is based on the ionospheric delay measured from dual-frequency combinations of GPS and Galileo signals. The uncertainty on the so-determined hardware delays is estimated to 3.7 ns for each isolated code in the L5 frequency band, and 4.2 ns for the ionosphere-free combination of E1 with a code of the L5 frequency band. For the calibration of a time transfer link between two stations, another approach can be used, based on the difference between the common-view time transfer results obtained with calibrated GPS data and with uncalibrated Galileo data. It is shown that the results obtained with this approach or with the ionospheric method are equivalent.

Convection Heat and Mass Transfer in a Power Law Fluid with Non Constant Relaxation Time Past a Vertical Porous Plate in the Presence of Thermo and Thermal Diffusion

NASA Astrophysics Data System (ADS)

Olajuwon, B. I.; Oyelakin, I. S.

2012-12-01

The paper investigates convection heat and mass transfer in power law fluid flow with non relaxation time past a vertical porous plate in presence of a chemical reaction, heat generation, thermo diffu- sion and thermal diffusion. The non - linear partial differential equations governing the flow are transformed into ordinary differential equations using the usual similarity method. The resulting similarity equations are solved numerically using Runge-Kutta shooting method. The results are presented as velocity, temperature and concentration profiles for pseudo plastic fluids and for different values of parameters governing the prob- lem. The skin friction, heat transfer and mass transfer rates are presented numerically in tabular form. The results show that these parameters have significant effects on the flow, heat transfer and mass transfer.

Modification of an impulse-factoring orbital transfer technique to account for orbit determination and maneuver execution errors

NASA Technical Reports Server (NTRS)

Kibler, J. F.; Green, R. N.; Young, G. R.; Kelly, M. G.

1974-01-01

A method has previously been developed to satisfy terminal rendezvous and intermediate timing constraints for planetary missions involving orbital operations. The method uses impulse factoring in which a two-impulse transfer is divided into three or four impulses which add one or two intermediate orbits. The periods of the intermediate orbits and the number of revolutions in each orbit are varied to satisfy timing constraints. Techniques are developed to retarget the orbital transfer in the presence of orbit-determination and maneuver-execution errors. Sample results indicate that the nominal transfer can be retargeted with little change in either the magnitude (Delta V) or location of the individual impulses. Additonally, the total Delta V required for the retargeted transfer is little different from that required for the nominal transfer. A digital computer program developed to implement the techniques is described.

"Call 911" STEMI protocol to reduce delays in transfer of patients from non primary percutaneous coronary intervention referral Centers.

PubMed

Baruch, Terrence; Rock, Alisa; Koenig, William J; Rokos, Ivan; French, William J

2010-09-01

Primary percutaneous coronary intervention (PPCI) is the preferred method of reperfusion for ST-segment elevation myocardial infarction (STEMI), if it can be performed in a timely manner by an experienced interventional cardiologist at a high volume STEMI Receiving Center. However, an estimated 50% of STEMI patients present to STEMI Referral Centers without PPCI capability. Transfer of STEMI patients for PPCI has been shown to improve outcomes as compared with fibrinolysis given at the presenting hospital. Nonetheless, transfer of STEMI patients for PPCI has not been used extensively in the United States and is associated with markedly prolonged transfer times. This study demonstrates that rapid transfer of STEMI patients from community hospitals without PPCI capability to a STEMI Receiving Center is both safe and feasible using a standardized protocol with an integrated transfer system.

Kinetic Monte Carlo modeling of chemical reactions coupled with heat transfer.

PubMed

Castonguay, Thomas C; Wang, Feng

2008-03-28

In this paper, we describe two types of effective events for describing heat transfer in a kinetic Monte Carlo (KMC) simulation that may involve stochastic chemical reactions. Simulations employing these events are referred to as KMC-TBT and KMC-PHE. In KMC-TBT, heat transfer is modeled as the stochastic transfer of "thermal bits" between adjacent grid points. In KMC-PHE, heat transfer is modeled by integrating the Poisson heat equation for a short time. Either approach is capable of capturing the time dependent system behavior exactly. Both KMC-PHE and KMC-TBT are validated by simulating pure heat transfer in a rod and a square and modeling a heated desorption problem where exact numerical results are available. KMC-PHE is much faster than KMC-TBT and is used to study the endothermic desorption of a lattice gas. Interesting findings from this study are reported.

Kinetic Monte Carlo modeling of chemical reactions coupled with heat transfer

NASA Astrophysics Data System (ADS)

Castonguay, Thomas C.; Wang, Feng

2008-03-01

In this paper, we describe two types of effective events for describing heat transfer in a kinetic Monte Carlo (KMC) simulation that may involve stochastic chemical reactions. Simulations employing these events are referred to as KMC-TBT and KMC-PHE. In KMC-TBT, heat transfer is modeled as the stochastic transfer of "thermal bits" between adjacent grid points. In KMC-PHE, heat transfer is modeled by integrating the Poisson heat equation for a short time. Either approach is capable of capturing the time dependent system behavior exactly. Both KMC-PHE and KMC-TBT are validated by simulating pure heat transfer in a rod and a square and modeling a heated desorption problem where exact numerical results are available. KMC-PHE is much faster than KMC-TBT and is used to study the endothermic desorption of a lattice gas. Interesting findings from this study are reported.

BeiDou Time Transfer With the Standard CGGTTS.

PubMed

Huang, Wei; Defraigne, Pascale

2016-07-01

The R2CGGTTS software tool developed at the Royal Observatory of Belgium (ROB) to provide clock solutions in the standard Common GNSS Generic Time Transfer Standard (CGGTTS) has been extended to BeiDou Navigation Satellite System (BDS). The BDS includes satellites in three different orbits: 1) Medium Earth Orbit (MEO); 2) Inclined Geosynchronous Satellite Orbit (IGSO); and 3) Geostationary Earth Orbit (GEO). This paper presents first results obtained with this upgraded software, and a comparison between common view (CV) time transfer solutions obtained with either BDS, or GPS or Galileo. These preliminary results indicate that the BeiDou MEO satellites give time transfer results with a higher noise than the GPS results. This additional noise is shown to be due to some elevation-dependent delay in the BDS code measurements. Some biases were furthermore pointed out between the CV results obtained with the different BeiDou MEO satellites when the receivers used in the two stations are of different make. These biases may reach some nanoseconds, and find most probably their origin in the receiver hardware or firmware. It is shown additionally that using the BeiDou IGSO satellites and the GEO satellites, although increasing the number of observations, especially in the Asia-Pacific region, introduces a significant time transfer noise in the CV results.

Real Time Quantification of Ultrafast Photoinduced Bimolecular Electron Transfer Rate: Direct Probing of the Transient Intermediate.

PubMed

Mukherjee, Puspal; Biswas, Somnath; Sen, Pratik

2015-08-27

Fluorescence quenching studies through steady-state and time-resolved measurements are inadequate to quantify the bimolecular electron transfer rate in bulk homogeneous solution due to constraints from diffusion. To nullify the effect of diffusion, direct evaluation of the rate of formation of a transient intermediate produced upon the electron transfer is essential. Methyl viologen, a well-known electron acceptor, produces a radical cation after accepting an electron, which has a characteristic strong and broad absorption band centered at 600 nm. Hence it is a good choice to evaluate the rate of photoinduced electron transfer reaction employing femtosecond broadband transient absorption spectroscopy. The time constant of the aforementioned process between pyrene and methyl viologen in methanol has been estimated to be 2.5 ± 0.4 ps using the same technique. The time constant for the backward reaction was found to be 14 ± 1 ps. These values did not change with variation of concentration of quencher, i.e., methyl viologen. Hence, we can infer that diffusion has no contribution in the estimation of rate constants. However, on changing the solvent from methanol to ethanol, the time constant of the electron transfer reaction has been found to increase and has accounted for the change in solvent reorganization energy.

A space system for high-accuracy global time and frequency comparison of clocks

NASA Technical Reports Server (NTRS)

Decher, R.; Allan, D. W.; Alley, C. O.; Vessot, R. F. C.; Winkler, G. M. R.

1981-01-01

A Space Shuttle experiment in which a hydrogen maser clock on board the Space Shuttle will be compared with clocks on the ground using two-way microwave and short pulse laser signals is described. The accuracy goal for the experiment is 1 nsec or better for the time transfer and 10 to the minus 14th power for the frequency comparison. A direct frequency comparison of primary standards at the 10 to the minus 14th power accuracy level is a unique feature of the proposed system. Both time and frequency transfer will be accomplished by microwave transmission, while the laser signals provide calibration of the system as well as subnanosecond time transfer.

Time Transfer With the Galileo Precise Timing Facility

DTIC Science & Technology

2007-11-01

being designed on the basis of three techniques: TWSTFT , CV, and use of OSPF products. The last technique implies interfacing an external facility...hydrogen masers (AHM) manufactured by T4S (Switzerland) and the 4 cesiums by Symmetricom. • Time Transfer Subsystem This includes the TWSTFT Station...PTF GACF MUCF TSP GMS UTC(k) BIPM OSPF GSS GalileoSat TWSTFT links Slave PTF CV links 442 39th Annual Precise Time and Time Interval

Satisfaction Levels and Factors Influencing Satisfaction With Use of a Social App for Neonatal and Pediatric Patient Transfer Information Systems: A Questionnaire Study Among Doctors

PubMed Central

Choi, Iee; Kim, Sun Jun; Cho, Soo Chul; Kim, Il Nyeo

2016-01-01

Background The treatment of neonatal and pediatric patients is limited to certain medical institutions depending on treatment difficulty. Effective patient transfers are necessary in situations where there are limited medical resources. In South Korea, the government has made a considerable effort to establish patient transfer systems using various means, such as websites, telephone, and so forth. However, in reality, the effort has not yet been effective. Objective In this study, we ran a patient transfer information system using a social app for effective patient transfer. We analyzed the results, satisfaction levels, and the factors influencing satisfaction. Methods Naver Band is a social app and mobile community application which in Korea is more popular than Facebook. It facilitates group communication. Using Naver Band, two systems were created: one by the Neonatal Intensive Care Unit and the other by the Department of Pediatrics at Chonbuk National University Children's Hospital, South Korea. The information necessary for patient transfers was provided to participating obstetricians (n=51) and pediatricians (n=90). We conducted a survey to evaluate the systems and reviewed the results retrospectively. Results The number of patients transferred was reported to increase by 65% (26/40) obstetricians and 40% (23/57) pediatricians. The time taken for transfers was reported to decrease by 72% (29/40) obstetricians and 59% (34/57) pediatricians. Satisfaction was indicated by 83% (33/40) obstetricians and 89% (51/57) pediatricians. Regarding factors influencing satisfaction, the obstetricians reported communication with doctors in charge (P=.03) and time reduction during transfers (P=.02), whereas the pediatricians indicated review of the diagnosis and treatment of transferred patients (P=.01) and the time reduction during transfers (P=.007). Conclusions The users were highly satisfied and different users indicated different factors of satisfaction. This finding implies that users’ requirements should be accommodated in future developments of patient transfer information systems. PMID:27492978