scholarly journals Presenting an Energy-Efficient Model for the Envelope of High-Rise Office Buildings Case Study: Cold and Dry Climate

Author(s):  
Behnoosh Khosravani Majd ◽  
Seyyed Mehdi Maddahi ◽  
Farzaneh Soflaei

The expansion of high-rise buildings and vertical cities has made room for a significant potential for large areas in the envelope (façade) of buildings to produce the required energy. This opens the opportunity to conduct research about the city of Mashhad-Iran. This study aims to provide an optimal model of the envelope of an office building and maximum utilization of sunlight in providing energy and indoor lighting in cold and dry climates. DesignBuilder software, version 6.1.0.006, to simulate the building and Energy plus 8.9 simulator engine was used to compare the amount of energy consumed, and electricity generated. We evaluated the data by the analytical-comparative method. The results showed that ,in one year, the energy produced by model number one (#1) (27.6%) and model number two (#2) (18.7%), among other simulated models with 15% efficiency (base efficiency rate) regarding all solar factors used in them, the amount of the electricity generated manifests a significant difference from the total electricity consumption of the building studied, assuming that the percentage of electricity supply with the actual efficiency of the proposed solar factors, are 17.99% and 17.88%, in model (#1) and model (#2). Once compared the given results of the models used for the photovoltaic panels, photovoltaic solar glasses, and the occupied area by them, a direct impact on the efficiency and energy generation of the building model envelope was seen. So, this study paves the road for further use of new technologies of building-integrated photovoltaic (BIPV) for locations that have similar climate.

2019 ◽  
Vol 65 (No. 3) ◽  
pp. 113-119
Author(s):  
Mahsa Hashemi ◽  
Ramin Naghdi ◽  
Mehrdad Nikooy ◽  
Vahid Hemmati

The main purpose of this study was evaluating indicators of forest road pavement degradation and their relation with different longitudinal slope classes after one year.  Therefore, 30 plots of 100 m<sup>2</sup> (10×10 m) area at a distance of 100 meters from each other were selected by a systematic method in the study forest road in the north of Iran. All effective factors on pavement degradation, like longitudinal and transverse slope, crown canopy on top of plots, azimuth and shape of road bed were measured. Additionally, to evaluate the mechanical characteristics of soil, 4 kg soil samples of pavement surface materials were taken from each mentioned plot. Regarding the results of average sifting through various sieves, we can state that in higher slope classes it is reduced by employing a bigger size of sieves. The percentage passing through sieve number 40 because of increasing slope in 4–7% slope classes was increased. There is a significant difference in the coefficient of uniformity between control treatment and classes 4–7% and above 7%. The treatments did not have an appropriate coefficient of curvature either. Totally, regarding negligible changes that were observed in class 4–7% in comparison with the other classes, we can figure out that this class is more suitable for the road construction.


VASA ◽  
2017 ◽  
Vol 46 (6) ◽  
pp. 484-489 ◽  
Author(s):  
Tom Barker ◽  
Felicity Evison ◽  
Ruth Benson ◽  
Alok Tiwari

Abstract. Background: The invasive management of varicose veins has a known risk of post-operative deep venous thrombosis and subsequent pulmonary embolism. The aim of this study was to evaluate absolute and relative risk of venous thromboembolism (VTE) following commonly used varicose vein procedures. Patients and methods: A retrospective analysis of secondary data using Hospital Episode Statistics database was performed for all varicose vein procedures performed between 2003 and 2013 and all readmissions for VTE in the same patients within 30 days, 90 days, and one year. Comparison of the incidence of VTEs between procedures was performed using a Pearson’s Chi-squared test. Results: In total, 261,169 varicose vein procedures were performed during the period studied. There were 686 VTEs recorded at 30 days (0.26 % incidence), 884 at 90 days (0.34 % incidence), and 1,246 at one year (0.48 % incidence). The VTE incidence for different procedures was between 0.15–0.35 % at 30 days, 0.26–0.50 % at 90 days, and 0.46–0.58 % at one year. At 30 days there was a significantly lower incidence of VTEs for foam sclerotherapy compared to other procedures (p = 0.01). There was no difference in VTE incidence between procedures at 90 days (p = 0.13) or one year (p = 0.16). Conclusions: Patients undergoing varicose vein procedures have a small but appreciable increased risk of VTE compared to the general population, with the effect persisting at one year. Foam sclerotherapy had a lower incidence of VTE compared to other procedures at 30 days, but this effect did not persist at 90 days or at one year. There was no other significant difference in the incidence of VTE between open, endovenous, and foam sclerotherapy treatments.


1997 ◽  
Vol 78 (05) ◽  
pp. 1327-1331 ◽  
Author(s):  
Paul A Kyrle ◽  
Andreas Stümpflen ◽  
Mirko Hirschl ◽  
Christine Bialonczyk ◽  
Kurt Herkner ◽  
...  

SummaryIncreased thrombin generation occurs in many individuals with inherited defects in the antithrombin or protein C anticoagulant pathways and is also seen in patients with thrombosis without a defined clotting abnormality. Hyperhomocysteinemia (H-HC) is an important risk factor of venous thromboembolism (VTE). We prospectively followed 48 patients with H-HC (median age 62 years, range 26-83; 18 males) and 183 patients (median age 50 years, range 18-85; 83 males) without H-HC for a period of up to one year. Prothrombin fragment Fl+2 (Fl+2) was determined in the patient’s plasma as a measure of thrombin generation during and at several time points after discontinuation of secondary thromboprophylaxis with oral anticoagulants. While on anticoagulants, patients with H-HC had significantly higher Fl+2 levels than patients without H-HC (mean 0.52 ± 0.49 nmol/1, median 0.4, range 0.2-2.8, versus 0.36 ± 0.2 nmol/1, median 0.3, range 0.1-2.1; p = 0.02). Three weeks and 3,6,9 and 12 months after discontinuation of oral anticoagulants, up to 20% of the patients with H-HC and 5 to 6% without H-HC had higher Fl+2 levels than a corresponding age- and sex-matched control group. 16% of the patients with H-HC and 4% of the patients without H-HC had either Fl+2 levels above the upper limit of normal controls at least at 2 occasions or (an) elevated Fl+2 level(s) followed by recurrent VTE. No statistical significant difference in the Fl+2 levels was seen between patients with and without H-HC. We conclude that a permanent hemostatic system activation is detectable in a proportion of patients with H-HC after discontinuation of oral anticoagulant therapy following VTE. Furthermore, secondary thromboprophylaxis with conventional doses of oral anticoagulants may not be sufficient to suppress hemostatic system activation in patients with H-HC.


2017 ◽  
Vol 99 (2) ◽  
pp. 184-226
Author(s):  
Barry Read

A sequel to the author’s article in the preceding issue on the origins, purpose, and planners of Los Angeles’s scenic Mulholland Drive, this article traces the phenomenal accomplishment of the 24-mile mountain road’s construction in one year and under budget. It details the supervision and problem-solving by construction engineer DeWitt L. Reaburn, the bureaucratic streamlining, the use of the latest 1920s road-building technology, and the efficient manpower logistics that made this possible.


Author(s):  
Hilman Syarif

Introduction: Student Centered Learning (SCL) is an effective method to develop student's soft skills and hard skills which are very important to support their successful carrier later. This research was conducted to identify the differences of developed soft skills between students who learn with PBL method and lecturing method. Methods: Descriptive comparative method was used in this study. The samples consisted of 15 students who learned with PBL method and 15 students who learned with lecturing method. The sample for this research was selected by random sampling method. Results: The result showed that the average of student's soft skills score in PBL method was 122.63, while student's soft skills score in lecturing method was 116.27. Discussion & Conclusion: There was significant difference of student's soft skills in PBL method and lecturing method (p value = 0.038; α = 0.05). This study recommends nursing program management, faculty of medicine at the University of Syiah Kuala keeps PBL method running and develops other methods which facilitate hard skills and soft skills are development. Keywords: nursing students, soft skill, PBL


2020 ◽  
Vol 4 (02) ◽  
Author(s):  
Metdi Permadi ◽  
Siti Maryam ◽  
Ratna Damayanti

The purpose of this study was to determine differences in purchasing decisions between Abang Ireng UMS geprek chicken and UMS Geprek Kumlot chicken in terms of Brand Image, Price and Variation of the menu. This method is called the comparative and quantitative methods with the aim of the comparative method with the aim of finding out the differences in purchasing decisions between variables. The sample of this study was 100 respondents consisting of 50 consumers of Abang Ireng Geprek chickens and 50 Kumlot geprek consumers. This study uses validity, reliability, to test the instrument using homogeneity analysis and independent sample t-test to test differences between variables. Data obtained from questionnaires for respondents. This study was tested using SPSS 20 software. The results of this study indicate that the Brand Image variable has no difference in purchasing decisions. Namely with the t value of the Brand Image variable of 0.753 with the criteria of t table> 0.05, this shows that there is no significant difference, while for the price variables and menu variations there is each difference to the purchase decision, namely the value of t count in the variable price of 0.018 with the criteria of t table


2020 ◽  
Vol 16 (3) ◽  
Author(s):  
Apar Pokharel ◽  
Naganawalachullu Jaya Prakash Mayya ◽  
Nabin Gautam

Introduction: Deviated nasal septum is one of the most common causes for the nasal obstruction. The objective of this study is to compare the surgical outcomes in patients undergoing conventional septoplasty and endoscopic septoplasty in the management of deviated nasal septum. Methods:  Prospective comparative study was conducted on 60 patients who presented to the Department of ENT, College of Medical sciences, during a period of one year. The severity of the symptoms was subjectively assessed using NOSE score and objectively assessed using modified Gertner plate. Results: There was significant improvement in functional outcome like NOSE Score and area over the Gertner plate among patients who underwent endoscopic septoplasty. Significant difference in incidence of post-operative nasal synechae and haemorrhage was seen in conventional group compared to endoscopic group. Conclusions: Endoscopic surgery is an evolutionary step towards solving the problems related to deviated nasal septum. It is safe, effective and conservative, alternative to conventional septal surgery.


2011 ◽  
pp. 70-76
Author(s):  

Objectives: To evualate the effects of early intervention program after one year for 33 disabled children in Hue city in 2010. Objects and Methods: Conduct with practical work and assessment on developing levels at different skills of the children with developmental delay under 6 years old who are the objects of the program. Results: With the Portage checklist used as a tool for implementing the intervention at the community and assessing developing skills on Social, Cognition, Motor, Self-help and Language skills for children with developmental delay, there still exists significant difference (p ≤ 0.05) at developing level of all areas in the first assessment (January, 2010) and the second assessment (December, 2010) after 12 months. In comparison among skills of different types of disabilities, there is significant difference of p ≤ 0.05 of social, cognition and language skills in the first assessment and of social, cognition, motor and language skills in the second assessment. Conclusion: Home-based Early Intervention Program for children with developmental delay has achieved lots of progress in improving development skills of the children and enhancing the parents’ abilities in supporting their children at home.


Author(s):  
Tewogbade Adeoye Adedeji ◽  
Simeon Adelani. Adebisi ◽  
Nife Olamide Adedeji ◽  
Olusola Akanni Jeje ◽  
Rotimi Samuel Owolabi

Background: Human immunodeficiency virus (HIV) infection impairs renal function, thereby affecting renal phosphate metabolism. Objectives: We prospectively estimated the prevalence of phosphate abnormalities (mild, moderate to life-threatening hypophosphataemia, and hyperphosphataemia) before initiating antiretroviral therapy (ART). Methods: A cross-sectional analysis was performed on 170 consecutive newly diagnosed ART-naïve, HIV-infected patients attending our HIV/AIDS clinics over a period of one year. Fifty (50) screened HIV-negative blood donors were used for comparison (controls). Blood and urine were collected simultaneously for phosphate and creatinine assay to estimate fractional phosphate excretion (FEPi %) and glomerular filtration rate (eGFR). Results: eGFR showed significant difference between patients’ and controls’ medians (47.89ml/min/1.73m2 versus 60ml/min/1.73m2, p <0.001); which denotes a moderate chronic kidney disease in the patients. Of the 170 patients, 78 (45.9%) had normal plasma phosphate (0.6-1.4 mmol/L); 85 (50%) had hyperphosphataemia. Grades 1, 2 and 3 hypophosphataemia was observed in 3 (1.8%), 3 (1.8%), and 1(0.5%) patient(s) respectively. None had grade 4 hypophosphataemia. Overall, the patients had significantly higher median of plasma phosphate than the controls, 1.4 mmol/L (IQR: 1.0 – 2.2) versus 1.1 mmol/L (IQR: 0.3 – 1.6), p <0.001, implying hyperphosphataemia in the patients; significantly lower median urine phosphate than the controls, 1.5 mmol/L (IQR: 0.7 -2.1) versus 8.4 mmol/L (IQR: 3.4 – 16), p <0.001), justifying the hyperphosphataemia is from phosphate retention; but a non-significantly lower median FEPi% than the controls, 0.96 % (IQR: 0.3 -2.2) versus 1.4% (IQR: 1.2 -1.6), p > 0.05. Predictors of FEPi% were age (Odds ratio, OR 0.9, p = 0.009); weight (OR 2.0, p < 0.001); CD4+ cells count predicted urine phosphate among males (p = 0.029). Conclusion: HIV infection likely induces renal insufficiency with reduced renal phosphate clearance. Thus, hyperphosphataemia is highly prevalent, and there is mild to moderate hypophosphataemia but its life-threatening form (grade 4) is rare among ART-naïve HIV patients.


Author(s):  
Sarah Crabtree

Patience Brayton (1734–94), a Quaker itinerant minister from Rhode Island, completed two extended journeys: one year-long trip covering the American seaboard and a four-year trek through Ireland and Britain. These journeys required her to leave her husband and young children, navigate hazardous travel conditions, endure incapacitating illnesses (often alone), and contend with those hostile to women’s ministry. This chapter contrasts these feats with post-Revolutionary ideas about the weakness of women’s bodies and minds, arguing Brayton’s narrative resolved this conflict by reiterating her own discomfort with these anomalous experiences and by attributing her strength and success to God. Thus, although her journal documented myriad examples of female autonomy and authority, descriptions of her travels, absences, illnesses, and silences conformed to gendered expectations. While ‘in the light’ Quaker women may have stretched gender norms in early America, they could not escape the gendered boundaries of cultural expectations while ‘on the road’.


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