scholarly journals Intracystic Haemorrhage in a Non-Endometriotic Mullerian Vaginal Cyst: An Unexpected Phenomenon

2016 ◽  
Vol 6 (1) ◽  
pp. 35-38
Author(s):  
Ng Beng Kwang ◽  
Keyword(s):  
Intracystic Haemorrhage ◽  
Unexpected Phenomenon

Characterization of surge superposition following 2-stage load rejection in hydroelectric power plant

2016 ◽  
Vol 43 (9) ◽  
pp. 844-850 ◽  
Author(s):  
Sheng Chen ◽  
Jian Zhang ◽  
Xichen Wang
Keyword(s):  
Power Plant ◽  
Analytical Formula ◽  
Hydroelectric Power Plant ◽  
Hydroelectric Power ◽  
Surge Tank ◽  
Time Intervals ◽  
Interval Time ◽  
Unexpected Phenomenon

When calculating the maximum upsurge in surge tank due to load rejection in a hydroelectric power plant, it has been natural and customary to believe that the maximum surge amplitude occurs in simultaneous load rejection of all units at 100% load. As 2-stage load rejection (2-stage LR), involving a step-wise reduction in load, is not considered since it is assumed to produce less severe surge conditions. This study formulates the surge superposition associated with 2-stage LR and shows, surprisingly but significantly, that such 2-stage LR sometimes produces more severe surge conditions than simultaneous and complete load rejection (SCLR). The results indicate that this unexpected phenomenon is ascribable to the resistant effect of throttled surge tank, whose increase will lead to a greater difference in the maximum upsurges between 2-stage LR and SCLR conditions. Different time intervals during 2-stage LR correspond to different maximum upsurges. The analytical formula predicting the worst interval time is derived exactly and verified with two numerical cases.

Unexpected Artifacts in a Digital Photograph

2011 ◽  
pp. 211-223
Author(s):  
Matthew J. Sorell
Keyword(s):  
Image Enhancement ◽  
Football Player ◽  
Jpeg Compression ◽  
Digital Photograph ◽  
Image Tampering ◽  
Unexpected Phenomenon

This chapter investigates an unexpected phenomenon observed in a recent digital photograph, in which the logo of a non-sponsoring sports company appears on the jersey of a famous football player in just one of a sequence of images. After eliminating deliberate image tampering as a cause, a hypothetical sequence of circumstances is proposed, concerning the lighting, dominant colours, infrared sensitivity, optical pre-processing, image enhancement and JPEG compression. The hypotheses are tested using a digital SLR camera. The investigation is of interest in a forensic context, firstly as a possible explanation in case such a photograph is observed, and secondly to be able to confirm or refute claims of such artifacts put forward claiming that a hypothetical image is not really what it claims to be.

scholarly journals Liver haematoma as a presentation of peliosis hepatis

2019 ◽  
Vol 12 (2) ◽  
pp. e226737 ◽  
Author(s):  
Yatee A Dave ◽  
Alisha Gupta ◽  
Mihir M Shah ◽  
Darren Carpizo
Keyword(s):  
Liver Parenchyma ◽  
Peliosis Hepatis ◽  
Liver Lesions ◽  
Postoperative Course ◽  
Intracystic Haemorrhage ◽  
Hepatic Haematoma ◽  
Liver Haematoma

Peliosis hepatis (PH) is an uncommon, benign hepatic vascular condition involving liver lesions consisting of dilated sinusoidal spaces that ultimately lead to numerous blood-filled cavities within the liver parenchyma. We detail the case of a 62-year-old woman who presented with a large hepatic haematoma resulting from intracystic haemorrhage. She was subsequently diagnosed with PH via arteriogram. Her symptoms were successfully treated surgically with open fenestration. Patient’s postoperative course was unremarkable, with no recurrence of symptoms to date.

Unexpected phenomenon in a conventional system: synthesis of raspberry-like hollow periodic mesoporous organosilica with controlled structure in one continuous step

2021 ◽  
Vol 45 (15) ◽  
pp. 6651-6660
Author(s):  
Chao Wang ◽  
Guolong Sang ◽  
Yedong Rong ◽  
Boran Zhang ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Conventional System ◽  
Periodic Mesoporous Organosilica ◽  
Interesting Phenomenon ◽  
System Synthesis ◽  
Mesoporous Organosilica ◽  
Controlled Structure ◽  
Tunable Morphology ◽  
Unexpected Phenomenon

We put forward a facile method to fabricate raspberry-like hollow PMO with tunable morphology, derived from an interesting phenomenon in preparing conventional PMO.

Cystic fibrous dysplasia of the skull with intracystic haemorrhage

2004 ◽  
Vol 18 (4) ◽  
pp. 401-402 ◽  
Author(s):  
A Ahmed ◽  
S Sgouros ◽  
S Scotcher
Keyword(s):  
Fibrous Dysplasia ◽  
Intracystic Haemorrhage

Cell pinball: phenomenon and mechanism of inertia-like cell motion in a microfluidic channel

Lab on a Chip ◽  
2015 ◽  
Vol 15 (16) ◽  
pp. 3307-3313 ◽  
Author(s):  
Ryo Murakami ◽  
Chia-Hung Dylan Tsai ◽  
Makoto Kaneko ◽  
Shinya Sakuma ◽  
Fumihito Arai
Keyword(s):  
Laminar Flow ◽  
Microfluidic Channel ◽  
Flow Channel ◽  
Cell Motion ◽  
Unexpected Phenomenon

An unexpected phenomenon of RBCs bouncing back and forth in a laminar flow channel.

scholarly journals ¿Hubo checas en el Madrid de la Guerra Civil? Estudio comparado de la policía política soviética y los comités revolucionarios españoles (verano-otoño 1936) = Were there “Checas” in the Madrid of the Civil War? Comparative study of the Soviet political police and the Spanish revolutionary committees (summer-autumn 1936)

2019 ◽  
pp. 49
Author(s):  
Fernando Jiménez Herrera
Keyword(s):  
Civil War ◽  
Comparative Study ◽  
State Model ◽  
Coup D'etat ◽  
Popular Justice ◽  
Two Systems ◽  
The Government ◽  
Unexpected Phenomenon

Resumen: Ante el fenómeno inesperado que tuvo el golpe de estado y la derrota de la sublevación sobre el Estado republicano, surgieron toda una serie de micropoderes que intentaron y compitieron entre sí por ocupar el espacio que había dejado vacío el Gobierno. Estos micropoderes, comités revolucionarios en su mayoría, no solo persiguieron ganar la guerra, sino iniciar y asentar un proceso revolucionario, contrapuesto al modelo de estado Republicano. Estos centros, al ejercer la justicia popular, fueron catalogados por los sublevados como “checas”, ligando su imagen al modelo de policía política soviético, la Cheká. En este trabajo se va a analizar el término checa, comparando los dos sistemas, el ruso y el español, para valorar si este concepto ayuda o entorpece nuestra comprensión sobre un fenómeno tan complejo como fue el de la revolución.Palabras clave: Guerra civil, Cheká, Violencia, comités, Madrid.Abstract: Faced with the unexpected phenomenon of the coup d'état and the defeat of the revolt against the republican state, a whole series of micro-powers arose that tried and competed with each other to occupy the space left by the government. These micro-powers, revolutionary committees for the most part, not only sought to win the war, but to initiate and settle a revolutionary process, as opposed to the Republican state model. These centers, in exercising popular justice, were labeled by the insurgents as "Checa", linking their image to the Soviet political police model, the Cheká. In this paper we will analyze the Cheká term, comparing the two systems, Russian and Spanish, to assess whether this concept helps or hinders our understanding of a phenomenon as complex as the revolution.Keywords: Civil war, Cheká, Violence, committees, Madrid.

scholarly journals SARS-CoV-2: Remarks on the COVID-19 Pandemic

2020 ◽  
Vol 68 (6) ◽  
Author(s):  
Egbert Piasecki
Keyword(s):  
Risk Groups ◽  
Necessary Condition ◽  
Effective Vaccine ◽  
Human Virus ◽  
The World ◽  
Partial Elimination ◽  
Unexpected Phenomenon

AbstractThe COVID-19 pandemic developing rapidly in 2020 is triggered by the emergence of a new human virus—SARS-CoV-2. The emergence of a new virus is not an unexpected phenomenon and has been predicted for many years. Since the virus has spread all over the world, it will be very difficult or even impossible to eradicate it. A necessary condition for complete or partial elimination of the virus is to have an effective vaccine. It is possible that SARS-CoV-2 will become milder in the next few years and COVID-19 will then only threaten individuals from risk groups.

scholarly journals Ultrasonographic diagnosis, classification, and treatment of cervical lymphatic malformation in paediatric patients: a retrospective study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Jiaoling Li ◽  
Wei Zhong ◽  
Xiuping Geng ◽  
Xiaofang Liu ◽  
Xiangxiang Zhang ◽  
...  
Keyword(s):  
Expectant Management ◽  
Interventional Therapy ◽  
Lymphatic Malformation ◽  
Imaging Features ◽  
Contrast Enhanced ◽  
Intracystic Haemorrhage ◽  
First Choice ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography ◽  
Classification And Treatment

Abstract Background To explore the imaging features, key diagnostic points, classification, treatment, and prognosis of cervical lymphatic malformation. Methods Overall, 320 patients diagnosed with cervical lymphatic malformation were retrospectively analysed in our hospital between 1 January 2014 and 31 December 2017. Imaging modalities included colour Doppler ultrasound, magnetic resonance imaging, and contrast-enhanced computed tomography. Cervical lymphatic malformations were classified by cyst diameter. Treatments included interventional therapy, surgery, and expectant treatment. Results Cervical lymphatic malformation was identified in 320 of 1192 patients with lymphatic malformation. Four were excluded due to misdiagnosis by ultrasonography. Cervical lymphatic malformation was classified as mixed, macrocystic, and microcystic in 184 (57.5%), 117 (36.56%), and 19 (5.94%) patients, respectively. Sixty-four (20%), ten (3.12%), seven (2.19%), and three (0.94%) patients experienced intracystic haemorrhage, infection, concurrent intracystic haemorrhage and infection, and calcification, respectively. Among 260 (81.25%) patients who underwent interventional sclerotherapy, 163 (50.94%) received it once and 96 (30%) received it two or more times. Twenty-eight (8.75%), five (1.56%), and 27 (8.44%) patients underwent surgical resection, interventional sclerotherapy plus surgery, and expectant management, respectively. Conclusions Ultrasonography is useful for diagnosing definite cervical lymphatic malformation. Interventional therapy is the first choice for children with confirmed cervical lymphatic malformation.

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