Results 91 to 100 of about 1,583,866 (313)

Measurement, testing, and safety technology: A compilation [PDF]

Methods and techniques in the related areas of measurement, testing, and safety are presented. Measuring techniques and devices and testing methods and devices are described. Articles on equipment modifications or procedures are included.

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The Prevalence and Control of Bacillus and Related Spore-Forming Bacteria in the Dairy Industry [PDF]

, 2015
peer-reviewedMilk produced in udder cells is sterile but due to its high nutrient content, it can be a good growth substrate for contaminating bacteria. The quality of milk is monitored via somatic cell counts and total bacterial counts, with prescribed ...
Beresford, Tom, Cotter, Paul D., Fenelon, Mark, Gopal, Nidhi, Hill, Colin, Ross, R Paul   +5 more
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Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

A Review of Wind Turbine Icing and Anti/De-Icing Technologies

Energies
The development and utilization of clean energy is becoming more extensive, and wind power generation is one of the key points of this. Occasionally, wind turbines are faced with various extreme environmental impacts such as icing, lightning strikes and ...
Zhijin Zhang, Hang Zhang, Xu Zhang, Qin Hu, Xingliang Jiang   +4 more
doaj   +1 more source

The NASA role in major areas of human concern: Safety [PDF]

The role of NASA in the national attempt to minimize the occurrence and severity of accidents is described.

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An Ultrafast Self‐Gelling Versatile Hydrogel for Rapid Infected Burn Wound Repair in Military Medicine

Advanced Functional Materials, EarlyView.
A self‐gelling PG@PAC (POD/Gel‐CDH@PA/CHX) powder is developed for infected burn care in austere settings. Upon contact with wound exudate, it instantly forms an adhesive hydrogel, providing simultaneous hemostasis, broad‐spectrum antibacterial activity, reactive oxygen species scavenging, and immunomodulation. In a murine model of S.
Liping Zhang, Zhangrui Wu, Xiansheng Zhao, Geng Wang, Quyang Yang, Minxia zhang, Xiaowei Wang, Xiujun Cheng, Changyue Wu, Dan Wu, Yutian Yang, Canbin Dong, Tao Zhang, Weiqiang Tan, Ningwen Zhu   +14 more
wiley   +1 more source

Study on the Impact of Contamination Containing High Proportions of Metals on the AC Flashover Characteristics of Insulators

High Voltage
In heavy metal industrial areas, the issue of insulation flashover caused by metal contamination on the external insulation of transmission lines has become increasingly prominent.
Zhijin Zhang, Dong Zeng, Bingbing Wang, Xingliang Jiang, Jianlin Hu, Qin Hu   +5 more
doaj   +1 more source

Dual-objective optimization and parameter design for thermoelectric deicing systems via support vector machine models optimized using coati algorithm

Case Studies in Thermal Engineering
This paper proposes an optimization strategy based on vector machine models optimized using coati algorithm to refine the geometric and operational parameters of thermoelectric de-icing devices for atmospheric structures.
Li Wang, Qin Hu, Yunlong Lv, Xingliang Jiang, Lie Ma   +4 more
doaj   +1 more source

Aerospace medicine and biology: A continuing bibliography with indexes (supplement 320) [PDF]

This bibliography lists 125 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during January, 1989. Subject coverage includes: aerospace medicine and psychology, life support systems and controlled

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Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Karl Jonas Riisnaes, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source