scholarly journals TIME INTERVAL SWITCHING DEVICE

2020 ◽  
Vol 10 (1) ◽  
pp. 12-15
Author(s):  
Ruslan Politanskyi ◽  
Andrij Veryga
Keyword(s):  
Time Interval ◽  
Switching Device ◽  
Electronic Switching ◽  
The Status

The proposed electronic switching device, which is a replacement (analogue) of the electromechanical switch KEP-12. The status and time settings are set for each channel separately through the device menu. It is characterized by less time and ease of reconfiguration.

scholarly journals Electrical read-out of light-induced spin transition in thin film spin crossover/graphene heterostructures

2021 ◽  
Author(s):  
Nikita Konstantinov ◽  
Arthur Tauzin ◽  
Ulrich Nguetchuissi Noumbé ◽  
Diana Dragoe ◽  
Bohdan Kundys ◽  
...  
Keyword(s):  
Thin Film ◽  
Spin Crossover ◽  
Spin Transition ◽  
Switching Device ◽  
Electronic Switching ◽  
Spin Transitions

An opto-electronic switching device made from an evaporated spin crossover thin film over a graphene sensor is presented. The electrical transduction of both temperature and light-induced reversible spin transitions are demonstrated.

scholarly journals Different bottom trawl fisheries have a differential impact on the status of the North Sea seafloor habitats

2020 ◽  
Vol 77 (5) ◽  
pp. 1772-1786 ◽  
Author(s):  
A D Rijnsdorp ◽  
J G Hiddink ◽  
P D van Denderen ◽  
N T Hintzen ◽  
O R Eigaard ◽  
...  
Keyword(s):  
North Sea ◽  
Management Strategies ◽  
Demersal Fish ◽  
Time Interval ◽  
The North ◽  
The Status ◽  
Fisheries Conservation ◽  
The North Sea ◽  
The Impact ◽  
Trawl Fisheries

Abstract Fisheries using bottom trawls are the most widespread source of anthropogenic physical disturbance to seafloor habitats. To mitigate such disturbances, the development of fisheries-, conservation-, and ecosystem-based management strategies requires the assessment of the impact of bottom trawling on the state of benthic biota. We explore a quantitative and mechanistic framework to assess trawling impact. Pressure and impact indicators that provide a continuous pressure–response curve are estimated at a spatial resolution of 1 × 1 min latitude and longitude (∼2 km2) using three methods: L1 estimates the proportion of the community with a life span exceeding the time interval between trawling events; L2 estimates the decrease in median longevity in response to trawling; and population dynamic (PD) estimates the decrease in biomass in response to trawling and the recovery time. Although impact scores are correlated, PD has the best performance over a broad range of trawling intensities. Using the framework in a trawling impact assessment of ten métiers in the North Sea shows that muddy habitats are impacted the most and coarse habitats are impacted the least. Otter trawling for crustaceans has the highest impact, followed by otter trawling for demersal fish and beam trawling for flatfish and flyshooting. Beam trawling for brown shrimps, otter trawling for industrial fish, and dredging for molluscs have the lowest impact. Trawling is highly aggregated in core fishing grounds where the status of the seafloor is low but the catch per unit of effort (CPUE) per unit of impact is high, in contrast to peripheral grounds, where CPUE per unit of impact is low.

National survey on delta checks in clinical laboratories in China

2020 ◽  
Vol 58 (4) ◽  
pp. 569-576 ◽  
Author(s):  
Shukang He ◽  
Fengfeng Kang ◽  
Wei Wang ◽  
Bingquan Chen ◽  
Zhiguo Wang
Keyword(s):  
Online Survey ◽  
Clinical Chemistry ◽  
Physiological State ◽  
Nationwide Survey ◽  
General Situation ◽  
Time Interval ◽  
Check Calculation ◽  
Clinical Laboratories ◽  
The Status ◽  
Wbc Count

AbstractBackgroundThis study aimed to understand the status quo of delta checks in Chinese clinical laboratories through a nationwide online survey.MethodsThe survey was divided into two parts. The first part was a general situation survey in which clinical laboratories had to provide information about the laboratories, including delta checks used. In the second part, clinical laboratories were asked to record the delta check alerts generated in their laboratories from June 1st, 2019 to June 30th, 2019.ResultsThe most frequently used analytes in delta checks were potassium (K), glucose (Glu), creatinine (Cre) for clinical chemistry and hemoglobin (Hgb), platelet (PLT) count and white blood cell (WBC) count for clinical hematology. The median maximum time interval between specimens for all analytes was 5 days. The most commonly used delta check calculation modes in Chinese clinical laboratories were percentage change and absolute change. K and Hgb were the analytes most involved in clinical chemistry and clinical hematology delta check alerts. The most common causes of delta check alerts were that the patients had received treatment, which was followed by the change in the patient’s physiological state and interference from hemolysis, lipemia and icterus. The two most common outcomes of delta check alerts were ‘no problems found, standard report issued’ and ‘no problems found, report issued with comment’.ConclusionsThis study was the first nationwide survey of delta checks in China, the results of which help us to understand the current situation of delta checks in Chinese clinical laboratories.

scholarly journals Phytoremediation of Domestic Wastewater

2022 ◽  
Vol 10 (5) ◽  
pp. 73-75
Author(s):  
Abhijit D. Garad ◽  
Keyword(s):  
Waste Water ◽  
Aquatic Plants ◽  
Aquatic Plant ◽  
Domestic Wastewater ◽  
Time Interval ◽  
Domestic Waste ◽  
Inorganic Pollutant ◽  
Plant Culture ◽  
The Status

Phytoremediation is fresh, well organized, low priced and recycled method for control of environmental pollution. In this phytoremediation technology, plants are used to enhance the status of environment. By using this method, organic and inorganic pollutant can easily eliminate from domestic. An aquatic plant culture was grown in regimented cement tank. Domestic waste Water was filled in this cement tank for specified interval of seven days. Before growth of aquatic plant culture quality of domestic waste water was evaluated. After specified time interval domestic waste water quality was again evaluated to check improvement of quality of waste water. The result of analysis indicates that phytoremediation process improves the quantity of waste water. For this phytoremediation process Canna, Hyacinth colocasia Arabica, Typha etc. aquatic plants are used. These aquatic plants absorb organic and inorganic parameters from waste water.

Psychological peculiarities of auditory cognitive defect when psychopathology

2014 ◽  
Vol 5 (1) ◽  
pp. 37-43
Author(s):  
Kseniya Alekseyevna Belskaya ◽  
Sergey Aleksandrovich Lytayev ◽  
Nikita Yuryevich Kipyatkov
Keyword(s):  
Latent Period ◽  
Functional State ◽  
Paranoid Schizophrenia ◽  
Cognitive Activity ◽  
Original Method ◽  
Control Group ◽  
Time Interval ◽  
Auditory Analyzer ◽  
The Status ◽  
The Brain

Work is executed on faculty of normal physiology of Saint-Petersburg state pediatric medical University of the Ministry of health of Russia and St. Petersburg psycho-neurological dispensary N 1. Of the existing Arsenal of psychophysiological methods in this study, we used the original method of studying perception of auditory images and psychological analysis of the status of higher mental functions in patients suffering from paranoid schizophrenia and control group. With increasing levels of anxiety, both healthy subjects and in patients of any information provided may be assessed as important. In such circumstances, the inhibition processes touch flow reduced and insignificant background is estimated sick longer than healthy. Normal perception clean and noisy auditory images has high identifiability (95 %) and efficiency with latent period of 4.2-8.4 C. Taking into account time for вербализацию a decision and biologically significant effect on the perceived information, this time interval corresponds to the physiological norm. The effectiveness of the perception of auditory images in chronic psychopathology is within 40- 75 %, and the latent period - within 11.2-24.3 with that 2.6-2.9 times exceeds the normative time of identification. Reduction in speed and efficiency of information-analytical activities in psychopathological disorders caused, apparently, by the decrease of the functional state of stem-reticular structures included in the first structural-functional Department of the auditory analyzer. The dependence of the quality of auditory-cognitive activity not only from the functional state of cortical fields, responsible for attention, perception, recognition, remembering, but also on the state of slightly-stem systems of the brain responsible tone and reactivity of the brain. Registered reliable link of functional reduce nonspecific brain systems in violation of the neurophysiological mechanisms of perception.

scholarly journals Dynamic Reliability Evaluation of Linear Consecutive k-out-of-n0: F System With Multi-State Components

2018 ◽  
Vol 22 ◽  
pp. 01057
Author(s):  
Gökhan GÖKDERE ◽  
Mehmet GÜRCAN
Keyword(s):  
Operating Performance ◽  
Reliability Evaluation ◽  
Technical System ◽  
Time Interval ◽  
Specific Time ◽  
Time Intervals ◽  
Engineering Applications ◽  
Dynamic Reliability ◽  
Reliability Calculation ◽  
The Status

In engineering applications, analyzing a technical system vary according to the operating principles of the system. In some situations, the status of the system is a function of stresses which act on the system and cause degradation. In order to efficiently analysis the reliability of a system which operates under stress, assigning the various states to the components depending on their operating performance is very important. In this paper, we have investigated the linear consecutive k-out-of-n: F system and assigned multiple states to its components. Due to the reason, the operating performance of the components can easily be controlled. Apart from that the reliability of the system depending on the states of its components can be calculated at any time interval. In the numerical example, the states of the components and the reliability calculation of the system at specific time intervals are shown clearly.

scholarly journals Simulating Emergency Department Boarding Using a Difference Equation

2020 ◽  
Author(s):  
Edward G. Brown ◽  
Patricia K. Howard ◽  
Daniel Moore
Keyword(s):  
Emergency Department ◽  
Difference Equation ◽  
Random Variable ◽  
Status Quo ◽  
Time Interval ◽  
Simulation Methods ◽  
The Status ◽  
Relationship Of ◽  
The Relationship ◽  
Patient Presentation

AbstractBackgroundThis paper aims to provide a model that can be used to simulate the effect of patient presentation counts on ED boarder counts and investigate strategies that might be used for managing ED boarding levels.MethodsA boarding simulation model is constructed using a random variable and two regressions that are linked together in a difference equation. The simulation is run under varying constraints, including time interval, presentation counts, and boarder count threshold. Bootstrapping is used to run the simulation a large number of times so that mean and medians can be calculated along with confidence intervals.ResultsThe method outlined in this paper can be used to simulate the effect of presentation levels on ED boarder counts. Using these methods one can derive quantifiable estimates of time that an emergency department might meet or exceed a particular boarder count threshold.ConclusionsThese simulation methods can help an emergency department understand the dynamics of the system in the status quo of normal operations and quantify the relationship of presentation counts and throughput to the hospital. We are hopeful that others may use these methods, adapting, developing, and testing for their own institutions.

scholarly journals Novel Indicator to Ascertain the Status and Trend of COVID-19 Spread: Modeling Study (Preprint)

2020 ◽  
Author(s):  
Takashi Nakano ◽  
Yoichi Ikeda
Keyword(s):  
Early Stage ◽  
Logarithmic Derivative ◽  
Current Status ◽  
Difference Approximation ◽  
Time Interval ◽  
Cumulative Number ◽  
Infected People ◽  
Linear Decrease ◽  
Wide Range ◽  
The Status

BACKGROUND In the fight against the pandemic of COVID-19, it is important to ascertain the status and trend of the infection spread quickly and accurately. OBJECTIVE The purpose of our study is to formulate a new and simple indicator that represents the COVID-19 spread rate by using publicly available data. METHODS The new indicator <i>K</i> is a backward difference approximation of the logarithmic derivative of the cumulative number of cases with a time interval of 7 days. It is calculated as a ratio of the number of newly confirmed cases in a week to the total number of cases. RESULTS The analysis of the current status of COVID-19 spreading over countries showed an approximate linear decrease in the time evolution of the <i>K</i> value. The slope of the linear decrease differed from country to country. In addition, it was steeper for East and Southeast Asian countries than for European countries. The regional difference in the slope seems to reflect both social and immunological circumstances for each country. CONCLUSIONS The approximate linear decrease of the <i>K</i> value indicates that the COVID-19 spread does not grow exponentially but starts to attenuate from the early stage. The <i>K</i> trajectory in a wide range was successfully reproduced by a phenomenological model with the constant attenuation assumption, indicating that the total number of the infected people follows the Gompertz curve. Focusing on the change in the value of <i>K</i> will help to improve and refine epidemiological models of COVID-19.

Foreign Body Embolization of the Middle Cerebral Artery: Review of the Literature and Guidelines for Management

Neurosurgery ◽  
1982 ◽  
Vol 11 (4) ◽  
pp. 532-536 ◽  
Author(s):  
James M. Vascik ◽  
John M. Tew
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Neurological Deficit ◽  
Surgical Intervention ◽  
Artery Occlusion ◽  
Surgical Removal ◽  
Time Interval ◽  
The Status ◽  
Vessel Patency ◽  
Cerebral Artery Occlusion

Abstract Two cases of traumatic middle cerebral artery occlusion secondary to migratory intravascular metallic pellets are presented. Surgical removal of the occlusive pellet was achieved in one patient, and vessel patency was restored. One patient recovered from his neurological deficit without surgical intervention. Factors such as the availability of a microvascular surgeon, the status of the neurological deficit resulting from the embolus, the time interval from injury to the proposed operation, and the extent of ancillary injuries sustained concurrently all bear weight on the decision to explore surgically or treat by medical measures. We believe that in cases of trauma an attempt to remove intravascular emboli is warranted to prevent migration of the embolus and distal propagation of thrombus, to avoid chronic sepsis, to prevent arterial erosion, and to restore the integrity of the vascular tree.

scholarly journals Novel Indicator to Ascertain the Status and Trend of COVID-19 Spread: Modeling Study

10.2196/20144 ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. e20144
Author(s):  
Takashi Nakano ◽  
Yoichi Ikeda
Keyword(s):  
Early Stage ◽  
Logarithmic Derivative ◽  
Current Status ◽  
Difference Approximation ◽  
Time Interval ◽  
Cumulative Number ◽  
K Value ◽  
Linear Decrease ◽  
Wide Range ◽  
The Status

Background In the fight against the pandemic of COVID-19, it is important to ascertain the status and trend of the infection spread quickly and accurately. Objective The purpose of our study is to formulate a new and simple indicator that represents the COVID-19 spread rate by using publicly available data. Methods The new indicator K is a backward difference approximation of the logarithmic derivative of the cumulative number of cases with a time interval of 7 days. It is calculated as a ratio of the number of newly confirmed cases in a week to the total number of cases. Results The analysis of the current status of COVID-19 spreading over countries showed an approximate linear decrease in the time evolution of the K value. The slope of the linear decrease differed from country to country. In addition, it was steeper for East and Southeast Asian countries than for European countries. The regional difference in the slope seems to reflect both social and immunological circumstances for each country. Conclusions The approximate linear decrease of the K value indicates that the COVID-19 spread does not grow exponentially but starts to attenuate from the early stage. The K trajectory in a wide range was successfully reproduced by a phenomenological model with the constant attenuation assumption, indicating that the total number of the infected people follows the Gompertz curve. Focusing on the change in the value of K will help to improve and refine epidemiological models of COVID-19.

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