Results 201 to 210 of about 5,813,438 (253)

Dynamic Etching‐Induced Cl‐Terminated Ti3C2Clx/Ti3ZnC2 Heterostructure for Ammonia Electrosynthesis and Zinc‐Nitrogen Batteries

Advanced Science, EarlyView.
A stable Ti3C2Clx/Ti3ZnC2 heterostructure, fabricated by dynamic etching, exhibits outstanding electrocatalytic NRR activity (NH3 yield: 20.1 µg h−1 mg−1, FE: 38.1%) in alkaline media. The corresponding Zn‐N2 battery achieves a peak power density of 36.5 µW cm−2 and an NH3 yield of 13.1 µg h−1 mg−1, providing an advanced strategy for NH3 and ...
Yu Wang, Ying Sun, Liqun Ye, Jichi Liu, Hui Li, Yang Fu, Fengzhan Sun, Jieshan Qiu, Chang Yu, Tianyi Ma   +9 more
wiley   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

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The impulse characteristics of porcelain insulators

Journal of the Institution of Electrical Engineers - Part I: General, 1941
This report deals with the flashover voltage of insulators and gaps subjected to impulse voltages of different wave-shapes, with the relation between crest voltage and time to flashover at voltages above the minimum required for flashover, with breakdown while the voltage is rising rapidly, with the simultaneous application of impulse and alternating ...
G.W. Bowdler, W.G. Standring
openaire   +1 more source

Characteristics of Impulsive Suicide Attempts and Attempters

Suicide and Life-Threatening Behavior, 2002
Suicide attempts often are impulsive, yet little is known about the characteristics of impulsive suicide. We examined impulsive suicide attempts within a population‐based, case‐control study of nearly lethal suicide attempts among people 13–34 years of age.
O R, Simon, A C, Swann, K E, Powell, L B, Potter, M J, Kresnow, P W, O'Carroll   +5 more
openaire   +2 more sources

Complex Impulses and Their Shear Characteristics

Cybernetics and Systems Analysis, 2016
The authors introduce the concepts of complex impulse, shear measure of intersection of two impulses, comb impulse, and chaotic impulse. The upper and lower estimates of the probability of at least one intersection are given, and the theorem about the upper estimates in intersection of comb impulses is formulated and proved.
O. V. Koba, O. M. Kucheryava
openaire   +1 more source

Impulse Characteristics in Rapid Movement

Journal of Motor Behavior, 1986
Three untested assumptions of the impulse-variability model were examined in two experiments utilizing rapid, uni-planar limb movements. Experiment 1 varied movement distance (A) and movement time (MT) in a rapid-timing paradigm where the subject moved a lever through a certain distance in a certain time.
openaire   +2 more sources

Impulse radio multipath characteristics and diversity reception

ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220), 2002
Delay-and-sum beamforming is applied to both ideal and measured ultra-wideband (UWB) signals. The results of propagation measurements are also used directly to estimate the performance of an UWB communication system and to characterize design tradeoffs.
R. Jean-Marc Cramer, Moe Z. Win, Robert A. Scholtz   +2 more
openaire   +1 more source

Evaluation of the multipath characteristics of the impulse radio channel

Ninth IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (Cat. No.98TH8361), 2002
In order to estimate the performance of impulse radio communication systems, a characterization of the channel is required. In particular, knowledge of the multipath angle and time-of-arrival distributions is useful for predicting the performance of diversity reception schemes. In this paper, the CLEAN algorithm is applied to ultra-wide bandwidth (UWB)
R. Jean-Marc Cramer, Moe Z. Win, Robert A. Scholtz   +2 more
openaire   +2 more sources

Impulse voltage characteristics of circuit breakers

Electrical Engineering, 1954
Insulation co-ordination is a major consideration in the cost and design of a complete electric power system and of all individual pieces of apparatus. Basic impulse levels have been standardized so that apparatus and protective equipment can be co-ordinated. These levels are measured by withstands on specified test waves.
V. E. Phillips, R. H. Miller
openaire   +1 more source

Impulse Characteristics of Aerial Spacer Cable

IEEE Transactions on Power Apparatus and Systems, 1967
Although the overall performance record of aerial spacer cable on the Public Service Electric and Gas Company system has been excellent, the number of failures caused by lightning appears to be disproportionately high. To determine the optimum design criteria of this type of distribution system, a program of laboratory impulse tests was established ...
J. Gill, R. Stys, R. Seely
openaire   +1 more source