Results 111 to 120 of about 387,772 (298)
Apparatus for microbiological sampling [PDF]
, 1974 An automatic apparatus is described for microbiologically sampling surface using a cotton swab which eliminates human error. The apparatus includes a self-powered transport device, such as a motor-driven wheeled cart, which mounts a swabbing motor drive ...
Mills, S. M., Wilkins, J. R.
core +1 more source
Anti‐Slip Material‐Based Strategies and Approaches
Advanced Materials Technologies, EarlyView.This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani +3 more
wiley +1 more source
Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators
Advanced Materials Technologies, EarlyView.Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks +2 more
wiley +1 more source
Prevalence and Predictors of Neurocognitive Impairment in Ethiopian Population Living with HIV
HIV/AIDS: Research and Palliative Care, 2020 Mohammed Salahuddin,1,2 Md Dilshad Manzar,3 Hamid Yimam Hassen,4,5 Aleem Unissa,6 Unaise Abdul Hameed,7 David Warren Spence,8 Seithikurippu R Pandi-Perumal9 1Department of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan ...
Salahuddin M +6 more
doaj
Inverse‐Designed on‐Chip Terahertz Three‐Channel Mode and Wavelength Division Demultiplexer
Advanced Photonics Research, EarlyView.An ultracompact terahertz demultiplexer is developed using a hybrid inverse design that combines genetic algorithms with topology optimization. The device enables simultaneous mode‐ and wavelength‐division multiplexing within a footprint smaller than two wavelengths.
Faqian Chong +5 more
wiley +1 more source
BarekengOvarian cancer can be identified from microarray data using machine learning. Many studies only focus on improving the machine learning classification algorithms to achieve higher performance.
Ni Kadek Emik Sapitri +2 more
doaj +1 more source
An Exploratory Analysis of Father Involvement in Low-Income Families [PDF]
Using data from the Fragile Families study, this paper explores factors that influence paternal involvement in low-income families. 4873 fathers from the Fragile Families study were classified using CART (Classification and Regression Tree Analysis ...
Eric Turkheimer +2 more
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The cart tracks at San Pawl tat-Targa, Naxxar [PDF]
, 1994 A notable concentration of cart tracks occurs at T'Alla u Ommu also known as Naxxar Gap at San Pawl tat-Targa, limits of Naxxar. By focusing on the ancient tracks in one specific area, this paper attempts to illustrate which characteristics can be ...
Tanti, Tony, Ventura, Frank
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On–Off Switchable Micromotors for Use in Steerable Microvehicles
Advanced Robotics Research, EarlyView.Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson +3 more
wiley +1 more source
Analyzing E-Learning Adoption via Recursive Partitioning [PDF]
The paper analyzes factors that influence the adoption of e-learning and gives an example of how to forecast technology adoption based on a post-hoc predictive segmentation using a classification and regression tree (CART).
Christian Schade, Philipp Köllinger
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