Results 31 to 40 of about 135,478 (173)

超声与其他技术联合在废水处理中的应用

open access: yesGongye shui chuli, 2003
超声是一种处理有机污染物废水的新型技术,近10a来,超声降解水体中有机污染物的研究十分活跃,但由于此技术存在着费用高、降解效率低等一些局限性,而更有效的方法是将超声技术与其他水处理技术联合使用.所以作者系统地介绍了超声/臭氧法、超声/紫外/臭氧法、超声/过氧化氢法、超声/Fenton试剂法、超声/光化学法、超声/电化学法、超声/磁化学法、超声/湿法氧化法、超声/生物法、超声/脱附法等联用技术在水处理中的应用研究现状,并展望了今后的重点研究方向.
郭照冰, 郑正, 袁守军, 唐登勇
doaj  

Surface‐Embedded Ag@Multilayer Graphene for Photothermal‐Enhanced Superhydrophobic Anti‐Icing Coatings

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang   +7 more
wiley   +1 more source

Comparison of ultrasound with computed tomography and whole‐body diffusion‐weighted MRI in prediction of surgical outcome using ESMO‐ESGO criteria in patients with tubo‐ovarian carcinoma: prospective ISAAC study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 207-219, February 2026.
ABSTRACT Objective To test the non‐inferiority of extended abdominopelvic ultrasound examination compared with contrast‐enhanced computed tomography (CT) and whole‐body diffusion‐weighted magnetic resonance imaging (WB‐DWI/MRI) in discriminating preoperatively between resectable and non‐resectable disease based on the European Society for Medical ...
D. Fischerova   +26 more
wiley   +1 more source

Whose Voices Are Heard? Parliamentary Committee Witnesses as Gendered Representatives

open access: yesPolitics &Policy, Volume 54, Issue 1, February 2026.
ABSTRACT Are women sources of expertise for parliamentary policy discussions? In most parliaments, committees are the only venue where citizens can speak directly to the legislature; we argue that the proportion of women witnesses has implications for gender equality in policymaking. We present an original dataset of over 52,000 parliamentary committee
Elizabeth McCallion   +1 more
wiley   +1 more source

Transvaginal ultrasound for detecting parametrial involvement in suspected deep pelvic endometriosis: updated meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 7-14, January 2026.
ABSTRACT Objective To perform an updated meta‐analysis evaluating the diagnostic performance of transvaginal ultrasound (TVS) for detecting lateral parametrial involvement in women with suspected deep pelvic endometriosis. Methods A literature search was performed in the Web of Science, PubMed and Scopus databases from January 2021 to May 2024 for ...
J. L. Alcázar   +7 more
wiley   +1 more source

Endometrial assessment in abnormal uterine bleeding: transvaginal ultrasound alone may not be good enough

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 79-88, January 2026.
ABSTRACT Objective To evaluate the proportion of optimal assessments of endometrial thickness (ET) achieved by transvaginal ultrasound (TVS) compared with a multimodal (MM) sonographic approach in women with abnormal uterine bleeding (AUB). Methods This prospective observational study was a subset of the EPI‐SURE study conducted between June and ...
S. Nijjar   +5 more
wiley   +1 more source

Undetected cases after implementation of first‐trimester anomaly scan in low‐risk population: insights from the IMITAS study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 27-33, January 2026.
ABSTRACT Objective To assess the effectiveness of the first‐trimester anomaly scan (FTAS) performed as part of a centrally steered national screening program in The Netherlands by investigating false‐negative cases with a fetal structural anomaly that was not detected at the FTAS.
K. Bronsgeest   +18 more
wiley   +1 more source

超声速和高超声速进气道的数值模拟

open access: yes, 1992
本文讨论超声速和高超声速进气道的数值模拟问题,其中包括国内外对进气道问题的一些主要进展、方向和今后预研的动态,目的在于弄清流场形成的机理 ...
王保国, 卞荫贵
core  

Performance of non‐invasive prenatal testing in vanishing‐twin and multiple pregnancies: results of TRIDENT‐2 study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 738-746, December 2025.
ABSTRACT Objective To evaluate the performance of non‐invasive prenatal testing (NIPT) in vanishing‐twin and multiple pregnancies. Methods This study was conducted as part of the TRIDENT‐2 study, in which NIPT was offered as a first‐tier screening test to women with a multiple pregnancy or vanishing‐twin pregnancy between 1 June 2020 and 31 March 2023 ...
J. C. A. van Eekhout   +86 more
wiley   +1 more source

发展高超声速推进技术的探讨

open access: yes, 2002
发展高超声速技术的关键是高超声速推进技术,即“动力先行”。而超燃冲压发动机可谓是如今高超声速推进技术的代名词。在几经起落之后,伴随美国X-43的飞行实验以及美国HyTech计划的不断深入 ...
张新宇
core  

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