scholarly journals ENERGY BALANCE EVALUATION OF INDUSTRIAL BUILDINGS WITH AN OFFICE COMPLEX / GAMYBINIO PASTATO SU ADMINISTRACINIU KORPUSU ENERGIJOS BALANSO TYRIMAS

2015 ◽  
Vol 7 (4) ◽  
pp. 493-498
Author(s):  
Juozas Bielskus ◽  
Giedrius Šiupšinskas ◽  
Dovydas Rimdžius ◽  
Kęstutis Kuzminskas ◽  
Šarūnas Gruzda
Keyword(s):  
Statistical Analysis ◽  
Energy Balance ◽  
System Analysis ◽  
Energy Savings ◽  
Energy Flows ◽  
Industrial Buildings ◽  
System Analysis Approach ◽  
Statistical Analysis Method ◽  
Evaluation Problem ◽  
One Year

While evaluating the energy savings potential in buildings of different function we face the energy balance of current situation evaluation problem. Generally the data of energy flows quantities and the nature of their dynamics are agregated and do not reflect the indicators of the achieved microclimate. Therefore this article analyses the energy balance following the example of one-year data collection analysis in a company’s building complex. The investigated problem is evaluated by the system analysis approach, i.e. the analysed object system is divided into separate subsystems which have been simulated individually but considering the subsystems joint relations in the system. The methods applied in this work are heat and mass balance of separate subsystems and statistical analysis method. The statistical analysis was used for the evaluation of the statistical reliability of the accumulated indicators (temperature, relative humidity, etc.). Siekiant įvertinti energijos taupymo potencialą skirtingos paskirties pastatuose susiduriama su esamos padėties energijos balanso įvertinimo problema. Dažniausiai duomenys apie energijos srautų kiekius ir jų kitimo pobūdį yra suminiai ir netspindi komforto rodiklių. Todėl šiame straipsinyje kaip pavyzdį pateikiant vienos įmonės pastatų komplekse atliktą vienų metų duomenų kaupimo tyrimą analizuojamas detalesnio energijos balanso sudarymas. Vertinimas atliktas sisteminės analizės požiūriu, tai yra objekto sistema buvo skaidoma į atskiras posistemes, kurios buvo atskirai modeliuojamos energyPRO kompiuterine programa, atsižvelgiant į šių posistemių tarpusavio ryšį. Šio darbo metu taikyti atskirų posistemių šilumos ir masės balansų bei statistinės analizės metodai. Statistinė analizė buvo taikoma vertinant metus trukusių matavimų sukauptų rodmenų (temperatūros, santykinės drėgmės ir kt.) statistinį patikimumą.

A system analysis approach to Kinetic School Drawings (KSD)

2010 ◽  
Vol 65 (3) ◽  
pp. 495-527 ◽  
Author(s):  
Zoltán Vass
Keyword(s):  
System Analysis ◽  
Analysis Approach ◽  
System Analysis Approach

A tanulmány a kinetikus iskolarajz (Kinetic School Drawings, KSD) értelmezését mutatja be a rendszerszemléletű konfigurációelemzés (SSCA) módszerével. A bevezetőben kifejezéspszichológiai szemléleti keretet vázol fel, amelyben a rajzot a kifejező viselkedés részének tekinti, elhelyezi a tesztet a rajzvizsgálatok rendszerében és röviden kitér a teszt előzményeire. A tesztfelvétel módszere után részletesen ismerteti a kinetikus iskolarajzok rendszerszemléletű konfigurációelemzési módszerét. Célja, hogy olyan értelmezési módszert adjon a gyakorló pszichológusok kezébe, amely szótárszerű jelentésadás nélkül vezet el a kinetikus iskolarajz megértéséhez és olyan összefüggések hálózatát eredményezi, amelyek mindig egyedi módon szólnak a gyermekről. A tanulmány befejező része a kinetikus iskolarajzokkal végzett, hazai kutatási eredményekről ad összefoglalót.

Energy Flows in Industrial Buildings and Machines using the Example of a Node Model

2012 ◽  
Vol 22 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Mirko Schäfer ◽  
Johannes Wagner ◽  
Alexander Schlüter ◽  
Jens Hesselbach
Keyword(s):  
Energy Flows ◽  
Industrial Buildings

scholarly journals Financial Performance of Non-oil Manufacturing Companies Listed on the Libyan Stock Market (LSM): Mixed Methods Study

2019 ◽  
Vol 9 (4) ◽  
pp. 77
Author(s):  
Khalifa Mohamed Khalifa Omar
Keyword(s):  
Statistical Analysis ◽  
Stock Market ◽  
Financial Performance ◽  
Manufacturing Companies ◽  
Analysis Method ◽  
Affecting Factors ◽  
Structured Interviews ◽  
Turnover Ratio ◽  
Statistical Effect ◽  
Statistical Analysis Method

The major objective of this study is to assess the financial performance and identify the affecting factors in this performance of non-oil manufacturing companies from 1999 to 2008. The study sample consisted of all non-oil manufacturing companies' enlisted at Libyan stock market which count (8). The data collected was analyzed by using statistical analysis method such as descriptive statistics, correlation test, Multiple- regression, as well as semi-structured interviews method. The results regarding to the statistical analysis method (net working capital, inventory turnover ratio, selling and general administrative expenses ratio, and company size and company age), have a positive statistical effect on the financial performance(ROA), while the variables of (current ratio, quick ratio and account receivable turnover ratio), have a negative statistical effect on the financial performance (ROA). The results regarding to semi-structured interviews method, reveal that the respondents in the interviews were confirmed that the selected factors have a significant effect on financial performance (ROA). The researcher recommended that the selected companies must consider the listed decision on the Libyan stock market; even when their financial performance is good.

scholarly journals Variability of Prognostic Results Based on Biological Parameters in Sickle Cell Disease Cohort Studies in Children: What Should Clinicians Know?

Children ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 143
Author(s):  
Julie Sommet ◽  
Enora Le Roux ◽  
Bérengère Koehl ◽  
Zinedine Haouari ◽  
Damir Mohamed ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Sickle Cell Disease ◽  
Cohort Studies ◽  
Statistical Methods ◽  
Sickle Cell ◽  
Biological Parameters ◽  
Analysis Method ◽  
Cell Disease ◽  
Statistical Analysis Method

Background: Many pediatric studies describe the association between biological parameters (BP) and severity of sickle cell disease (SCD) using different methods to collect or to analyze BP. This article assesses the methods used for collection and subsequent statistical analysis of BP, and how these impact prognostic results in SCD children cohort studies. Methods: Firstly, we identified the collection and statistical methods used in published SCD cohort studies. Secondly, these methods were applied to our cohort of 375 SCD children, to evaluate the association of BP with cerebral vasculopathy (CV). Results: In 16 cohort studies, BP were collected either once or several times during follow-up. The identified methods in the statistical analysis were: (1) one baseline value per patient (2) last known value; (3) mean of all values; (4) modelling of all values in a two-stage approach. Applying these four different statistical methods to our cohort, the results and interpretation of the association between BP and CV were different depending on the method used. Conclusion: The BP prognostic value depends on the chosen statistical analysis method. Appropriate statistical analyses of prognostic factors in cohort studies should be considered and should enable valuable and reproducible conclusions.

scholarly journals Temporal load resolution impact on PV/grid system energy flows

2018 ◽  
Vol 240 ◽  
pp. 04003 ◽  
Author(s):  
Marek Jaszczur ◽  
Qusay Hassan ◽  
Janusz Teneta
Keyword(s):  
Temporal Resolution ◽  
System Analysis ◽  
Estimation Error ◽  
Energy System ◽  
Photovoltaic System ◽  
Acquisition Time ◽  
Storage Unit ◽  
Time Step ◽  
Energy Flows ◽  
Pv Grid

In this paper, an investigation of the electrical load temporal resolution on the PV/Grid energy system flows, and self-consumption is done in order to determine the optimum parameters for modelling and simulation. The analysed PV/Grid power systems include a photovoltaic system with the nominal power of Pmax@STC=1.5, 2.5, 3.5 kW without storage unit connected to the grid. The results show that the temporal load resolution may have a high impact on energy flows as well as can be a critical issue for the system analysis accuracy even for the single household. It has been found that the load temporal resolution for energy consumption of 1-min yields reliable results, while data resolutions of 5 and 15 min are still sufficient, however, in that case, the daily electrical energy flows and in consequence energy self-consumption estimation error for selected days may exceed 15%. Acquisition time step longer than 15-minutes may increase error above 20% and from the designer’s point of view should not be used. The high and low temporal resolution experimental data of the electricity consumption (load) for a household are available in digital form on the author’s website http://home.agh.edu.pl/jaszczur.

scholarly journals The role of scientific research in achieving economic development Applied to White Nile state- Sudan (2015- 2018): دور البحث العلمي في تحقيق التنمية الاقتصادية دراسة ميدانية في ولاية النيل الأبيض – السودان (للفترة من 2015م - 2018م)

2020 ◽  
Vol 4 (7) ◽  
Author(s):  
Mahdi Abdalla Mohamed, Musa Abdalla Mohamed
Keyword(s):  
Economic Development ◽  
Statistical Analysis ◽  
Scientific Research ◽  
Analysis Method ◽  
Important Target ◽  
Statistical Analysis Method ◽  
White Nile ◽  
Descriptive Method

The study is focusing on the factors which are leading to know the weakness link between the scientific research and economic development in the White Nile state. The important target of the study is to determinate the role of scientific research in the economic development. The study dependence on the statistical analysis method, historical and descriptive method. It aims to collect information related to the problem. The most important result of the study that state has significant savings in production. The most important recommendations of the study the necessity of using scientific research to achieve economic development.

scholarly journals Assessment of Gender Differences in Depression- A Cross-Sectional study

2021 ◽  
pp. 28-33
Author(s):  
Tushar Agravat
Keyword(s):  
Gender Differences ◽  
Statistical Analysis ◽  
Major Depression ◽  
Life Events ◽  
Stressful Life Events ◽  
Nuclear Family ◽  
Demographic Characteristics ◽  
Stressful Life ◽  
Significant Difference ◽  
One Year

Background and Aim: Major depression in both women and men is a debilitating disorder that disrupts relationship and daily lives and affects nearly 10% of general populations. The aims and objectives of this study were to determine the gender differences in major depression with respect to following: Demographic characteristics, Clinical manifestations, Stressful life events, Risk factors. Materials and Methods: Total of 100 patients was included in the study. All the included patients meet the criteria for DSM-IV (Diagnostic and Statistical Manual of Mental Disorders) diagnosis of major depression. The included patients were interviewed at the department of Psychiatry, B. J. Medical College & civil hospital Ahmedabad. Based on the Life Events Scale by Holmes and Rahe (1967), its Indian adaptation PSLE (Presumptive stressful life events scale) was done by Gurmeet Singh (1983). The statistical analysis was done by using SPSS IX version. Results: Their ages range from 18 to 70 years. Most of the patients were married, were from urban background, and nuclear family. On Hamilton Depression rating scale when the statistical analysis was done, there was no significant difference between males and females. Men had higher mean life events score than women but this was not statistically significant. In female, there was significant positive correlation between number of life events in one year and severity of depression as well as impact score during one year prior to onset of depression and Hamilton rating scores. Conclusion: Male and female major depression patients did not differ as regards demographic characteristics, except that most women were homemakers and men were employed. Number of stressful life events experienced during 1 year prior to onset of MDD was similar. Early insomnia, middle insomnia and somatic symptoms general were more severely present in female patients.

Test Reliability of Impurity Parameters of Uster AFIS

2011 ◽  
Vol 331 ◽  
pp. 516-527
Author(s):  
Peng Zi Sun ◽  
Ji Peng Cao
Keyword(s):  
Statistical Analysis ◽  
Test Reliability ◽  
Test Time ◽  
Test Results ◽  
Analysis Method ◽  
Sample Weight ◽  
Reliable Test ◽  
Sampling Process ◽  
Statistical Analysis Method ◽  
Card Sliver

This paper presents test reliablity of Uster AFIS for impurity test by calculating the Reliable Test Time (hereinafter referred to as RTT) and CV% of test results. The CV% value of test results of impurity-related parameters in card sliver obtained in 8 experiments totally with 313 different plans were calculated. By statistical analysis method, the reliable test time of AFIS for some impurity-related parameters was estimated. It is concluded that the impurity result obtained by 10-time tests with AFIS was inaccurate. The reasons for this are that the sample weight is too small, the impurity is unevenly distributed and the impurity in card sliver may have some loss in the manually-sampling process.

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