Results 61 to 70 of about 305,462 (305)

Kajian Faktor Fisik Lingkungan Kerja yang Berhubungan dengan Tingkat Kelelahan pada Tenaga Kerja di Unit Spinning IV PT. Sinar Pantja Djaja Semarang [PDF]

open access: yes, 2007
Background : Production process in a textile industry may cause adverse effect on health of workes. One adverse effect is from machines and working environment that may produce noise and hot environment that can give negative impact on worker. Noise
Joko, T. (Tri)   +2 more
core  

PEDOT‐Based Eutectogel Electrode Arrays for Enhanced High‐Resolution Electrogastrography: Fabrication, Stability, and Wearable Performance

open access: yesAdvanced Functional Materials, EarlyView.
Here, we present a high‐density PEDOT eutectogel electrode array for enhanced body surface gastric mapping. Silver electrodes are blade‐coated onto flexible substrates, followed by electrogelation of PEDOT:PSS and the deposition of a PEDOT:LS eutectogel.
Christopher Slaughter   +8 more
wiley   +1 more source

Photothermal effects in ultra-precisely stabilized tunable microcavities

open access: yes, 2016
We study the mechanical stability of a tunable high-finesse microcavity under ambient conditions and investigate light-induced effects that can both suppress and excite mechanical fluctuations.
Brachmann, Johannes F. S.   +3 more
core   +1 more source

Formation of Stable Amorphous Calcium Phosphate and Collagen Assemblies by a Versatile Spray‐Drying Approach

open access: yesAdvanced Functional Materials, EarlyView.
Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani   +13 more
wiley   +1 more source

Influence of Ambient Noise Source Distributions on Cross-correlation Derived Seismic Waveforms and Dispersion Curve Retrieval

open access: yesCT Lilun yu yingyong yanjiu
Dense-array observation has become a key method for obtaining high-resolution subsurface structures. However, the spatiotemporal heterogeneity of the noise source distribution significantly reduces the signal-to-noise ratio (SNR) of noise correlation ...
Weiyu FENG   +3 more
doaj   +1 more source

The Benefits of Sleep During Hospitalization: A Survey to Determine the Utility of Quiet Hours on a Med-Surg Floor [PDF]

open access: yes, 2017
Florence Nightingale said, “Unnecessary noise is the cruelest absence of care.” During inpatient hospitalizations, frequent awakenings and a high level of ambient noise prevent restful sleep in many patients.
Cole, Marissa   +3 more
core   +1 more source

Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors

open access: yesAdvanced Functional Materials, EarlyView.
π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato   +10 more
wiley   +1 more source

Design and Preliminary Testing of Demand-Responsive Transverse Rumble Strips [PDF]

open access: yes, 2019
Transverse rumble strips are common practice to alert drivers by engaging their auditory and tactile senses in addition to visual senses by traffic signals.
Hossen, Md Shakhawat   +5 more
core   +2 more sources

Contact Lens with Moiré Patterns for High‐Precision Eye Tracking

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a passive contact lens for high‐precision eye tracking, integrating a microscopic moiré grating label. The parallax‐induced shift of macroscopic moiré patterns enables angle measurement with 0.28° precision using a standard camera under ambient light.
Ilia M. Fradkin   +11 more
wiley   +1 more source

Accurate Indoor Sound Level Measurement on a Low-Power and Low-Cost Wireless Sensor Node

open access: yesSensors, 2018
Wireless sensor networks can provide a cheap and flexible infrastructure to support the measurement of noise pollution. However, the processing of the gathered data is challenging to implement on resource-constrained nodes, because each node has its own ...
Vladimir Risojević   +4 more
doaj   +1 more source

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