scholarly journals HYDROGEOLOGICAL BREAKING CHARACTERISTICS OF WAVES ABOVE FRESH WATER SUBAQUEOUS SOURCES

2011 ◽  
Vol 1 (5) ◽  
pp. 11
Author(s):  
Agatino D'Arrigo
Keyword(s):  
Potential Energy ◽  
Fresh Water ◽  
Wave Motion ◽  
Vertical Wall ◽  
Short Review ◽  
Circular Motion ◽  
Compressed Air

After a short review of the usefulness of maritime structures, particularly vertical wall breakwaters, long term observations of hydrogeological breaking on the bottom of Italy's Seas, as caused by the subaqueous source of fresh water, are discussed. The correlation between hydrogeological breaking and wave motion perturbation produced by compressed air or by oil is presented. These considerations are related to the observations of Admiral Alessandro Cialdi on the morphological breaking of waves above sand banks, thus producing calmness in the upper water. Therefore, it appears possible to establish a very suggestive analogy between the atomic disintegration of the transformation of potential energy of the oscillatory tide wave into kinematic energy of its components (because of breaking), in accordance with the disintegration of the circular motion.

scholarly journals TWO-DIMENSIONAL SEICHE IN A BASIN SUBJECTED TO INCIDENT WAVES

2011 ◽  
Vol 1 (5) ◽  
pp. 10
Author(s):  
B. Le Mehaute
Keyword(s):  
Wave Motion ◽  
Vertical Wall ◽  
Experimental Studies ◽  
Ocean Waves ◽  
Short Review ◽  
Hydraulic Impedance ◽  
Long Time ◽  
Similar Character ◽  
Incident Waves

Seiche movements in lakes have for a long time been submitted to the calculations of the most competent scientists. Studies of seiche in open basins subject to the action of ocean waves are not so numerous and above all they are less rigorous. However the studies of Lord RAYLEIGH, HONDA, TERADA, YOSHIOA, ISITANI and HANSEN can be mentioned, and the important work by PROUDMAN on tide movements.(which often have a similar character to seiches), the studies of NEUMANN introducing the notion of hydraulic impedance, and those of LAMOEN on the theory of estuaries etc. More recently MC MOWN made theoretical and experimental studies at the Laboratoire Dauphinois d'Hydrauligue, for circular and square harbours. Formulae have been known for a long time giving the resonance period of long basins: basins which are sufficiently long for the oscillations to be considered only in the direction of the basin's length. By analogy with sound tubes two cases have been considered: that of basins completely closed and that of basins completely open. Standing wave; open basin; incident waves After a short review of the usefulness of maritime structures, particularly vertical wall breakwaters, long term observations of hydrogeological breaking on the bottom of Italy's Seas, as caused by the subaqueous source of fresh water, are discussed. The correlation between hydrogeological breaking and wave motion perturbation produced by compressed air or by oil is presented. These considerations are related to the observations of Admiral Alessandro Cialdi on the morphological breaking of waves above sand banks, thus producing calmness in the upper water. Therefore, it appears possible to establish a very suggestive analogy between the atomic disintegration of the transformation of potential energy of the oscillatory tide wave into kinematic energy of its components (because of breaking), in accordance with the disintegration of the circular motion.

Low-Carbon Russia: Prospects after the Crisis

2009 ◽  
pp. 107-120 ◽  
Author(s):  
I. Bashmakov
Keyword(s):  
Economic Growth ◽  
Potential Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Low Carbon ◽  
Modeling Tools ◽  
Gas Emissions ◽  
Scenario Approach

On the eve of the worldwide negotiations of a new climate agreement in December 2009 in Copenhagen it is important to clearly understand what Russia can do to mitigate energy-related greenhouse gas emissions in the medium (until 2020) and in the long term (until 2050). The paper investigates this issue using modeling tools and scenario approach. It concludes that transition to the "Low-Carbon Russia" scenarios must be accomplished in 2020—2030 or sooner, not only to mitigate emissions, but to block potential energy shortages and its costliness which can hinder economic growth.

scholarly journals Clinical case and short review of extreme short bowel syndrome: an update 21 years after

2016 ◽  
Vol 10 (1) ◽  
pp. 45
Author(s):  
Pasquale Mansueto ◽  
Aurelio Seidita ◽  
Salvatore Iacono ◽  
Antonio Carroccio
Keyword(s):  
Small Intestine ◽  
Short Bowel Syndrome ◽  
Clinical Case ◽  
Ileocecal Valve ◽  
Short Review ◽  
Short Bowel ◽  
Massive Resection ◽  
Low Weight ◽  
Clinical Conditions

Short bowel syndrome refers to the malabsorptive state caused by loss of significant portions of the small intestine, whose clinical framework is characterized by malnutrition, diarrhea, dehydration, weight loss, and low-weight-related symptoms/signs. These clinical conditions seem to be related to the length of resection. Twenty-one years ago we reported the clinical case of an infant, who underwent a massive resection of the loops of the small intestine, of the cecum and of part of the ascending colon, due to intestinal malrotation with volvulus. The residual small intestine measured just 11 cm and consisted of the duodenum and a small part of jejunum, in the absence of the ileocecal valve, configuring the case of a <em>ultra-short bowel syndrome</em>. In this report, we update the case, reporting the patient succeeded to obtain a good weight gain and to conduct a quite normal lifestyle, despite the long-term consequences of such resection.

scholarly journals Survival and quality of life following pancreaticoduodenectomy for pancreatic ductal adenocarcinoma

2021 ◽  
Vol 6 (2) ◽  
Keyword(s):  
Quality Of Life ◽  
Pancreatic Ductal Adenocarcinoma ◽  
Short Review ◽  
Mortality Rates ◽  
Ductal Adenocarcinoma ◽  
Term Survival ◽  
Long Term Survival ◽  
Dismal Prognosis

Pancreatic ductal adenocarcinoma (PDAC) most commonly affects the head of the pancreas. This condition has a dismal prognosis. Patients with early disease may be candidates for pancreaticoduodenectomy (PD). This is a high-risk operation which is associated with considerable morbidity. Whilst perioperative mortality rates have fallen in recent times, the risk remains significant and long-term survival is poor, even in those who make an uncomplicated recovery. Furthermore, PD is known to affect quality of life (QoL) negatively. Most studies suggest it takes up to six months before a patient’s QoL returns to baseline. This is a considerable amount of time for a patient who is unlikely to achieve long-term survival. This short review discusses the recent literature surrounding mortality rates, long-term survival and QoL following PD for PDAC. A comprehensive understanding of these topics will allow clinicians and patients to consider the risks and benefits before surgical resection is considered.

Our Efforts for Ideal Stroke Prevention and Treatment in Japan

Stroke ◽  
2022 ◽  
Author(s):  
Takenori Yamaguchi
Keyword(s):  
Cardiovascular Disease ◽  
Primary Prevention ◽  
Acute Treatment ◽  
Low Dose ◽  
Dual Antiplatelet Therapy ◽  
Intravenous Thrombolysis ◽  
Short Review ◽  
Prevention And Treatment ◽  
Cardiovascular Center

In the present short review for the Sherman Award, Dr Yamaguchi introduces studies at the National Cerebral and Cardiovascular Center, Osaka, which included development of intravenous thrombolysis using low-dose alteplase that was officially approved in Japan, long-term dual antiplatelet therapy using cilostazol together with aspirin or clopidogrel, and others. He also discusses efforts to ensure the passage of the “Stroke and Cardiovascular Disease Control Act,” the aims of which are better primary prevention, better acute treatment, rehabilitation, and secondary prevention of stroke for people living in Japan.

Intravenous albumin for spontaneous bacterial peritonitis and renal dysfunction in patients with cirrhosis-short review

2021 ◽  
Vol 5 (1) ◽  
pp. 01-03
Author(s):  
Marilena Stoian
Keyword(s):  
Renal Dysfunction ◽  
Spontaneous Bacterial Peritonitis ◽  
Cost Effective ◽  
Short Review ◽  
Decompensated Cirrhosis ◽  
Optimal Dosage ◽  
Bacterial Peritonitis ◽  
Beneficial Effects ◽  
Albumin Administration

Current clinical guidelines for albumin use in decompensated cirrhosis recommend the use of intravenous albumin infusions for management of ascites-related symptoms and paracentesis (removal of ascitic fluid) and for the management of spontaneous bacterial peritonitis (SBP), renal dysfunction and variceal bleeding. Routine albumin use is not recommended for the management of non-SBP infections. The aim of this review is to improve our understanding of the effects of albumin use in cirrhosis by reviewing the currently available and quantifying the effectiveness of intravenous albumin therapy to prevent specific cirrhosis complications, spontaneous bacterial peritonitis (SBP) and renal dysfunction. Long-term albumin administration to patients with decompensated cirrhosis improves survival, prevents complications, eases the management of ascites and reduces hospitalizations, thus being cost-effective. However, variant results indicate that further investigations are needed, aiming at confirming the beneficial effects of albumin, clarifying its optimal dosage and administration schedule and identify patients who would benefit most from long-term albumin administration.

scholarly journals Treatment of penile lichen sclerosus with topical corticosteroids for over 25 years’ duration: A case report

2018 ◽  
Vol 6 ◽  
pp. 2050313X1879504 ◽  
Author(s):  
Matthew Howard ◽  
Anthony Hall
Keyword(s):  
Case Report ◽  
Relevant Literature ◽  
Lichen Sclerosus ◽  
Short Review ◽  
Short Term ◽  
Topical Corticosteroids ◽  
Long Term Follow Up ◽  
Term Management

Topical corticosteroids are currently recommended only for short-term management of flares of lichen sclerosus, with efficacy in halting disease progression. Given the chronic nature of this condition, there is a lack of literature surrounding the chronic effects of topical corticosteroids on the male genitalia with many dermatologists avoiding prescribing long term. This case report aims to provide anecdotal observation for the long-term use of topical corticosteroids and details the long-term follow-up of an individual who used potent and superpotent topical corticosteroids for over 25 years without significant demonstrable side effects. A short review on relevant literature is provided.

Influence of Volumetric Capacity on Energy Consumption in Oil-Lubricated Compressed Air Systems

2016 ◽  
Vol 8 (4) ◽  
Author(s):  
Pawel Olszewski ◽  
Claus Borgnakke
Keyword(s):  
Mathematical Model ◽  
Energy Efficiency ◽  
Energy Consumption ◽  
Potential Energy ◽  
Uncertainty Analysis ◽  
Control Strategy ◽  
Energy Savings ◽  
Compressed Air ◽  
Numerical Code ◽  
Volumetric Capacity

The aim of this research is to estimate the influence of compressed air volumetric capacity on the energy consumption in systems equipped with oil-lubricated screw compressors. A mathematical model of oil-lubricated screw compressors has been proposed. The model is verified by comparing with real measurements, and overall uncertainty analysis is estimated. An in-house developed numerical code (c++) is used to calculate the energy consumption in 252,000 combinations. The final result can be used to estimate the energy efficiency of existing air systems and to assess potential energy savings due to changes in the operation of the system and its control strategy.

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