Results 131 to 140 of about 330,769 (355)

Payload/burned-out motor case separation system Patent [PDF]

open access: yes, 1970
Payload/spent rocket engine case separation ...
Watson, N. D.
core   +1 more source

Chronic Low‐Dose Unsymmetrical Dimethylhydrazine Exposure in Rats: Multiorgan Mechanisms and Biomarker Identification

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Unsymmetrical dimethylhydrazine (UDMH), a highly toxic rocket propellant with known multiorgan effects, requires urgent characterization of its chronic low‐dose toxicity. Using an integrated approach including exploratory transcriptomics (n = 3/group) and metabolomic (n = 4/group) approaches in male Sprague–Dawley rats exposed to high‐dose ...
Fuzhou Liu   +6 more
wiley   +1 more source

Takotsubo cardiomyopathy during armed conflict: A case series

open access: yes
ESC Heart Failure, Volume 12, Issue 2, Page 1494-1498, April 2025.
Sharon Bruoha   +13 more
wiley   +1 more source

A Comparative Study of Ultrasonography and CT Venography in the Diagnosis of Budd‐Chiari Syndrome

open access: yesJournal of Clinical Ultrasound, EarlyView.
Budd‐Chiari syndrome (BCS) is characterized by hepatic venous outflow obstruction from the hepatic veins to the junction of the inferior vena cava (IVC) and right atrium. Ultrasound (US) and CT venography (CTV) are used as imaging techniques for the diagnosis of BCS, and We compared the diagnostic efficacy of the two modalities. The results showed that
Tiling Jiang   +6 more
wiley   +1 more source

Gyro-System for Guidance with Magnetically Suspended Gyroscope, Using Control Laws Based on Dynamic Inversion

open access: yesActuators
The authors have designed a gyro-system for orientation (guidance) and stabilization, with two gimbals and a rotor in magnetic suspension (AMB—Active Magnetic Bearing) usable for self-guided rockets.
Romulus Lungu   +2 more
doaj   +1 more source

Longest survivor of pulmonary atresia with ventricular septal defect without surgical intervention

open access: yes
ESC Heart Failure, Volume 12, Issue 2, Page 1499-1507, April 2025.
Sang Zhou   +5 more
wiley   +1 more source

Ultrasonography Sliding Sign as a Predictor for Intraabdominal Adhesions in Repeated Cesarean Deliveries: Retrospective Cross Sectional Study

open access: yesJournal of Clinical Ultrasound, EarlyView.
This retrospective cohort study included 350 individuals who underwent cesarean section. Data from 198 participants who met the inclusion criteria were analyzed. The region below ROC curves for the sliding sign was 0.717 (95% CI: 0.645–0.789). The sensitivity was 58.9%, specificity was 84.6%, positive predictive value (PPV) was 81.7%, negative ...
Can Ata   +3 more
wiley   +1 more source

Intent Arabic text categorisation based on different machine learning and term frequency

open access: yesIET Networks, EarlyView., 2022
Abstract The complexity of Internet network configurations has made managing networks a complicated undertaking. Intent‐Based Networking (IBN) is a potential solution to this issue. In contrast to conventional networks, where a concrete description of the settings typically conveys a network administrator's goal kept on each device, an administrator's ...
Mohammad Fadhil Mahdi   +1 more
wiley   +1 more source

Effect of Sodium Sulfate Treatment on the Modulation of Aliphatic Glucosinolates in Eruca sativa Mill Organs at Flowering Stage

open access: yesApplied Sciences
Glucosinolates are secondary metabolites of the Brassicales, playing a role in plant protection and as health-promoting compounds. Here, Na2SO4 was used to modulate the aliphatic glucosinolate content in different organs of Eruca sativa Mill. In flowers,
Eleonora Pagnotta   +11 more
doaj   +1 more source

Developments in REDES: The Rocket Engine Design Expert System [PDF]

open access: yes
The Rocket Engine Design Expert System (REDES) was developed at NASA-Lewis to collect, automate, and perpetuate the existing expertise of performing a comprehensive rocket engine analysis and design.
Davidian, Kenneth O.
core   +2 more sources

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