Filters
total: 1920
filtered: 1387
displaying 1000 best results Help
Search results for: INJECTOR OPENING PRESSURE
-
THERMODYNAMIC ANALYSIS OF A GENERATION IV SCWR NUCLEAR POWER PLANT CYCLE
PublicationThis article presents a flow and thermodynamic analysis of a Generation IV nuclear cycle. An SCWR (Supercritical water reactor) is a high temperature and high pressure reactor that uses water at a temperature above its thermodynamic critical point as the working fluid. The cycle used for the calculations consists of one interstage superheater and 7 regenerative heat exchangers. Division pressure was optimized in view of the cycle efficiency,...
-
Initial Investigation of Wave Interactions During Simultaneous Valve Closures in Hydraulic Piping Systems
PublicationThe effects of interference of pressure waves in simple piping systems were studied. A freeware computer code Allievi developed at the University of Valencia was used to simulate dynamic waveforms in simple and complex networks. The tests were carried out according to three scenarios. No pressure increases significantly exceeding the Joukowsky pressure in simple cases were noticed. When the effects of the simultaneous closing of...
-
The forming and emission of high power electromagnetic pulses
PublicationAn impulse energy source, a power conditioning system and an electromagnetic field emitter are essential to generate an electromagnetic field pulse (EMFP) with a specific frequency bandwidth. Selected simulation results for a power conditioning system consisting of a fuse opening switch and a paraboloidal electromagnetic emitter have been presented in this article. The synthetic system examined in the simulation is powered by...
-
Modelowanie bezpiecznika rozłącznikowego w układach formowania impulsów wielkiej mocy
PublicationProblem modelowania bezpieczników o dużej dynamice wyłączania prądu jest zagadnieniem szeroko opisywanym w literaturze. Układy takie mogą być wykorzystane w szczególności do formowania impulsów wysokiego napięcia o wartościach rzędu setek kV, charakteryzujących się czasem trwania rzędu ułamka μs. W niniejszej pracy przedstawiono empiryczny model bezpiecznika wielotopikowego, rozszerzony w oparciu o wyniki badań eksperymentalnych.
-
Effect of Some Sulphur Additives on The Degradation of 9Cr-1Mo Steel After Its 10 Years Service in The CCR Platforming Unit
PublicationThe work shows the results of the tests of 9Cr-1Mo steel, which was for 10 years operated in the CCR platforming unit in Group Lotos SA in Gdańsk, and then in the laboratory was sulphidised during 166 h at a temperature of 600 °C. Sulphidation was performed in a mixture of H2-H2S gases at the vapour pressure of sulphur 4.1·10-14 atm, so the order of magnitude of vapour pressure was less than that of the dissociation pressure of...
-
Exergy analysis of a negative CO2 emission gas power plant based on water oxy-combustion of syngas from sewage sludge gasification and CCS
PublicationA power cycle with water-injected oxy-combustion (water cycle) is investigated by exergy analysis. It is fueled with syngas (aka. producer gas) from gasification of sewage sludge. The cycle is equipped with a spray-ejector condenser (SEC). CO2 is separated and compressed for transportation and storage. The net delivered electric power is 31% of the fuel exergy. The task efficiency is 39% when the flue gas bleed to gasification...
-
Molecular mechanism and energetics of coupling between substrate binding and product release in the F 1 -ATPase catalytic cycle
PublicationF1-ATPase is a motor protein that couples the rotation of its rotary γ subunit with ATP synthesis or hydrolysis. Single-molecule experiments indicate that nucleotide binding and release events occur almost simultaneously during the synthesis cycle, allowing the energy gain due to spontaneous binding of ADP to one catalytic β subunit to be directly harnessed for driving the release of ATP from another rather than being dissipated...
-
Need for multiple risk reduction strategies in clinical trials enrolling high risk patients - FOURIER investigating PCSK-9 inhibitor to lower cholesterol revisited
Publication -
Masked arterial hypertension in a 64-year-old man with primary aldosteronism
Publication -
Prevalence and distribution of left ventricular diastolic dysfunction in treated patients with long-lasting hypertension
Publication -
2018 Practice guidelines for the management of arterial hypertension of the European Society of Cardiology and the European Society of Hypertension
Publication -
Women’s health, cardiovascular risk and hypertension: the perspective still needs to improve
Publication -
The PARAGON Heart Failure trial – ongoing investigation of the angiotensin receptor antagonist/neprilysin inhibitor sacubitril/valsartan in heart failure patients with hypertension and preserved ejection fraction
Publication -
New data on antihypertensive drugs and risk of cancer: should we worry?
Publication -
Treatment strategies for comorbid conditions lower residual risk in patients with treated hypertension: FOURIER and other randomized outcome trials
Publication -
2013 ESH/ESC Practice Guidelines for the Management of Arterial Hypertension
Publication -
2018 Practice guidelines for the management of arterial hypertension of the European Society of Hypertension
Publication -
Novel approaches: targeting sympathetic outflow in the carotid sinus
Publication -
Peter Meredith
Publication -
The INTERSTROKE Study: hypertension is by far the most important modifiable risk factor for stroke
Publication -
Hypertension Management by Practice Guidelines
Publication -
Hypertension and cochlear hearing loss
Publication -
The Health Outcomes Prevention and Evaluation 4 (HOPE 4) project: A successful community-based intervention to lower cardiovascular risk in people with hypertension
Publication -
The PARAGON-Heart failure trial – another disappointment for heart failure patients with hypertension and preserved ejection fraction
Publication -
Insufficiency of the zona glomerulosa of the adrenal cortex and progressive kidney insufficiency following unilateral adrenalectomy – case report and discussion
Publication -
HOPE-3, SPRINT, VALUE and a meta-analysis of trials in patients with diabetes support treatment of hypertension to a target below 140 mmHg
Publication -
How to measure retinal microperfusion in patients with arterial hypertension
Publication -
TIME to face the reality about evening dosing of antihypertensive drugs in hypertension
Publication -
Renal denervation in hypertension: is it the end or the beginning of a SPYRAL?
Publication -
Single-pill combinations, hypertension control and clinical outcomes: potential, pitfalls and solutions
Publication -
Age-dependent sympathetic neural responses to ß1 selective beta-blockade in untreated hypertension-related tachycardia
Publication -
Changes of augmentation index early after ischaemic stroke predict functional outcome
Publication -
Prevention of heart failure mortality and hospitalizations in SPRINT, EMPA-REG, ALLHAT and HYVET: are diuretics the clue?
Publication -
Renal denervation in treatment-resistant hypertension – Oslo RDN, Symplicity HTN-3 and INSPiRED randomized trials
Publication -
The polypill: an emerging treatment alternative for secondary prevention of cardiovascular disease
Publication -
New 2017 American Heart Association and American College of Cardiology guideline for hypertension in the adults: major paradigm shifts, but will they help to fight against the hypertension disease burden?
Publication -
Will we ever use angiotensin receptor neprilysin inhibition (ARNi) for the treatment of hypertension?
Publication -
ONTARGET, TRANSCEND and PROFESS – Clarifying, confusing or misleading
Publication -
Angiotensin receptor blockers and endpoint protection
Publication -
Health economy of the metabolic syndrome pandemic
Publication -
Angiotensin receptor blockers and cancer – Relationship dismissed by VALUE data while waiting for EMA and FDA reports
Publication -
Revisiting the pre-hypertension debate: Increasing evidence for treatment – or not?
Publication -
Hypertension and coronary artery disease: Mechanistic insights and therapeutic challenges
Publication -
Antihypertensive efficacy and safety of olmesartan and ramipril in elderly patients with mild to moderate systolic and diastolic essential hypertension
Publication -
Angiotensin II receptor blocker combinations: From guidelines to clinical practice
Publication -
Antihypertensive therapy and cancer risks?
Publication -
A stunning day in hypertension research – Results of ONTARGET, ACCOMPLISH and HYVET
Publication -
Primary cardiovascular prevention by Mediterranean diet – The PREDIMED trial
Publication -
An appropriate SCORE to assess cardiovascular risk in hypertension?
Publication -
Reappraisal of European guidelines on hypertension management: a European Society of Hypertension Task Force document
Publication