Results 21 to 30 of about 559,013 (263)

Enhancing Performance of Engineering Structures under Dynamic Disasters with ECC–FRP Composites: A Review at Material and Member Levels

Buildings, 2023
Dynamic loadings arising from impact, explosive, and seismic disasters impose high requirements on the performance of engineering structures during service periods.
Debo Zhao, Bin Chen, Jingming Sun
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Comparison of the Effects of Quality Improvement Strategies on Prevention of Mother-to-Child HIV Transmission in a Public and a Private Hospital in Lesotho

Journal of the International Association of Providers of AIDS Care, 2019
We compared quality improvement (QI) interventions for prevention of mother-to-child transmission in a private hospital and a government hospital (GH). From November 2013 to October 2016, data were extracted retrospectively for HIV-positive mothers and ...
Kelello L. M. Lerotholi MD, Manone Rantekoa BSc., N, MPH, Khotso G. Mahlalefa BSc, Lerato Hlehlisi BSN, MPH, Aurora O. Amoah PhD, MPP, MPH   +4 more
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Applying Quality Improvement Approaches to Reduce Mother-to-Child HIV Transmission and Improve Health and Nutrition Care in Five Countries: Lessons from the Partnership for HIV-Free Survival

Journal of the International Association of Providers of AIDS Care, 2019
The World Health Organization guidelines for treating pregnant HIV-positive women and preventing HIV transmission to infants now recommend lifelong antiretroviral treatment for pregnant and breastfeeding women. We applied quality improvement (QI) methods
Amy F. Stern MHS, Anisa Ismail MPH, Esther Karamagi MBChb, MSc, Tamara Nsubuga-Nyombi BSc, MPHDC, Stella Kasindi Mwita MD, MPH, Monica M. Ngonyani MSc, Kevin Kinyua MbCHb, Prisca Muange MBChB, MPH, MSc, Kelello L. M. Lerotholi MD, Manone Rantekoa BScN, MPH, Khotso G. Mahlalefa BSc, Maureen Fatsani Tshabalala RNM, BBA, MPH, Nigel Livesley MD, MPH   +12 more
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Reducing Mother-to-Child Transmission of HIV Using Quality Improvement Approaches

Journal of the International Association of Providers of AIDS Care, 2019
Over half of mother-to-child HIV transmission (MTCT) occurs postdelivery. Keeping mother–infant pairs in care remains challenging. Health workers in 3 countries used quality improvement (QI) approaches to improve data systems, mother–infant retention ...
Nigel Livesley MD, MPH, Astou Coly PhD, MPH, Esther Karamagi MBChb, MSc, Tamara Nsubuga-Nyombi BSc, MPHDC, Stella Kasindi Mwita MD, MPH, Monica M. Ngonyani MSc, Jane Mvungi MD, MPH, Kevin Kinyua MbCHb, Prisca Muange MBChB, MPH, MSc, Anisa Ismail MPH, Timothy Quick PhD, MS, Amy Stern MHS   +11 more
doaj   +1 more source

Salt-Fog Corrosion Behavior of GCr15 Steels Treated by Ultrasonic Strengthening Grinding Process

Applied Sciences, 2022
In this paper, the corrosion resistance of four GCr15 steel samples has been investigated. Three samples were initially surface-treated by ultrasonic shot peening (USP), a dry ultrasonic strengthening grinding process (DUSGP), and a wet ultrasonic ...
Xincheng Xie, Zhongning Guo, Zhuan Zhao, Zhongwei Liang, Jun Wu, Xiaochu Liu, Jinrui Xiao   +6 more
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Strengthening Neighbourhood Substitution [PDF]

, 2020
Domain reduction is an essential tool for solving the constraint satisfaction problem (CSP). In the binary CSP, neighbourhood substitution consists in eliminating a value if there exists another value which can be substituted for it in each constraint.
openaire   +2 more sources

Microstructures and strengthening mechanism of 2D laminated structures in Ni balls after high‐speed collisions with 316 L stainless steel

Engineering Reports, 2023
In many cases, due to high surface stress, stress concentration and wear, the metal material starts to fail from the surface. It is necessary to investigate interface evolution characteristics under high‐speed collisions for widely used metal materials ...
Lv Jinlong, Zhou Zhiping, Zhang Shuye
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Improving tensile strength and impact toughness of plasticized poly(lactic acid) biocomposites by incorporating nanofibrillated cellulose

Nanotechnology Reviews, 2022
Poly(lactic acid) (PLA) biocomposites are usually plasticized to overcome the problem of poor ductility, which decreases the valuable tensile strength.
Tian Jiarong, Cao Zhongqi, Qian Shaoping, Xia Yingbo, Zhang Jiaxi, Kong Yingqi, Sheng Kuichuan, Zhang Ying, Wan Yi, Takahashi Jun   +9 more
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Mechanical property improvement of wire-arc additive manufactured 06Cr19Ni9 steel based on ultrasonic strengthening grinding process

Journal of Materials Research and Technology
Wire-arc additive manufacturing (WAAM) technology offers an effective approach to fabricating complex metallic components. However, the existing WAAM process is limited in producing a metallic component with high mechanical strength.
Jinrui Xiao, Yiteng Zhang, Xincheng Xie, Wenfeng Ding, Zhuan Zhao, Zhongwei Liang   +5 more
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Improvement of the high-temperature oxidation resistance of 254SMo using ultrasonic strengthening grinding

Journal of Materials Research and Technology, 2023
This paper used ultrasonic strengthening grinding (USGP) to process 254SMo welded joints. The mechanical properties of processed and unmachined samples of welded joints, including grain size, dislocation, microhardness, residual stress, and high ...
Jiayi Chen, Xincheng Xie, Tao Zou, Yupeng Zhang, Haiyan Wang, Zhongwei Liang   +5 more
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