Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 5
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

This paper presents an original method of designing reversible circuits. This method is destined to most popular gate set with three types of gates CNT (Control, NOT and Toffoli). The presented algorithm based on graphical representation of the reversible function is called s-maps. This algorithm allows to find optimal or quasi-optimal reversible circuits. The paper is organized as follows. Section 1 recalls basic concepts of reversible logic. Especially the cascade of the gates as realization of reversible function is presented. In Section 2 there is introduced a classification of minterms distribution. The s-maps are the representation of the reversible functions where the minterms distribution is presented. The choice of the first gate in the cascade depends on possibility of improving the distribution. Section 3 describes the algorithm, namely how to find the optimal or quasi-optimal solutions of the given function.

Go to article

Authors and Affiliations

Andrzej Skorupski
Download PDF Download RIS Download Bibtex

Abstract

This paper presents a simulation study of the simultaneous reconstruction of the non-smooth strain distribution of an optical fiber Bragg grating and its temperature, which is based on the reflection spectrum of the reflected beam of the grating. The transition matrix method was used to model the reflection spectrum of the grating, and the nonlinear Nelder- Mead optimization method was used to simultaneously reconstruct the strain distribution along the grating and its temperature. The results of simulations of simultaneous reconstruction of the strain profile and temperature indicate good accord with the strain profiles and temperature set. The reconstruction errors of the strain profiles are less than 1.2 percent and the temperature change errors are less than 0.2 percent, with a noise level of 5 percent.
Go to article

Authors and Affiliations

Małgorzata Detka
1
Cezary Kaczmarek
2

  1. Faculty of Electrical Engineering, Automatic Control and Computer Science, Kielce University of Technology, Poland
  2. Faculty of Electrical Engineering and ComputerScience, Lublin University of Technology, Poland
Download PDF Download RIS Download Bibtex

Abstract

The paper presents the impact of exceeding the railway rails lifespan which usually causes a railway structural failure, thus an accident. The research highlights the rails’s high degradation, especially on the running area, consisting in 60-70% weight loss by advanced wear of the rail, followed by fatigue fracture caused by alternating cyclic stresses that initiates the crack and also by tensile stresses resulting in the crack growth. The chemical composition, structural and mechanical properties were analyzed in order to establish the causes that led to the railway rails rupture.
Go to article

Authors and Affiliations

A.C. Berbecaru
1
ORCID: ORCID
G. Coman
1
ORCID: ORCID
S. Ciucă
1
ORCID: ORCID
I.A. Gherghescu
1
ORCID: ORCID
M.G. Sohaciu
1
ORCID: ORCID
C. Grădinaru
1
ORCID: ORCID
C. Predescu
1
ORCID: ORCID

  1. Politehnica University of Bucharest, Faculty of Materials Science and Engineering, 313 Splaiul Independenței, 060042 Bucharest, Romania
Download PDF Download RIS Download Bibtex

Abstract

Obesity, which is generally seen in adults, is a serious health problem. Diseases caused by obesity are among the leading causes of death worldwide. Liraglutide (LG) is an analogue of glucagon-like peptide-1, which slows gastrointestinal motility, resulting in decreased food consumption. Gastric plication (GP) and sleeve gastrectomy (SG) is the reduction of stomach volume by surgical means. We examined and compared the body mass index (BMI) changes, metabolic changes and changes in gastric histology in obese rats after LG injection with surgical methods such as SG and GP.
In this research, 35 Wistar Albino female rats were used. Rats were divided into 5 groups with 7 rats in each group. Group (G) 1: The control group, fed with a normal calorie diet for 8 weeks. G 2: Sham group, G 3: SG group, G 4: GP group and G 5: LG group, fed with high-calorie feed for 4 weeks. At the end of the 4th week, the study was terminated by making appropriate interventions for the groups.
When the blood glucose (BG) levels measured at the beginning, 4 th week and 8 th week of the experiment were evaluated, it was monitored that the BG level at the 8 th week was the lowest in the LG group (p<0.05). It was observed that the preop Ghrelin and Leptin levels of the LG group were lower than those of the SG and GP groups (p<0.05). As a consequenc
As a consequence of our metabolic investigations, we observed that the use of LG is at least as effective as SG.

Go to article

Bibliography

1. Altunkaynak ME, Ozbek E, Altunkaynak BZ, Can I, Unal D, Unal B (2008) The effects of high-fat diet on the renal structure and mor-phometric parametric of kidneys in rats. J Anat 212: 845-852.
2. Aroda VR, Henry RR, Han J, Huang W, DeYoung MB, Darsow T, Hoogwerf BJ (2012) Efficacy of GLP-1 receptor agonists and DPP-4 inhibitors: meta-analysis and systematic review. Clin Ther 34: 1247-58.
3. Astrup A, Rössner S, Van Gaal L, Rissanen A, Niskanen L, Al Hakim M, Madsen J, Rasmussen MF, Lean ME (2009) Effects of lirag-lutide in the treatment of obesity: a randomised, double-blind, placebo controlled study. Lancet 374: 1606-1616.
4. Borrell LN, Samuel L (2014) Body mass index categories and mortality risk in US adults: the effect of overweight and obesity on ad-vancing death. Am J Public Health 104: 512-519.
5. Brinkman AK (2017) Management of type 1 diabetes. Nurs Clin North Am 52: 499-511.
6. Dag OZ, Dilbaz B (2015) Impact of obesity on infertility in women. J Turk Ger Gynecol Assoc 16: 111-117.
7. Domienik-Karlowicz J, Dzikowska-Diduch O, Lisik W, Chmura A, Pruszczyk P (2015) Short-term cardiometabolic risk reduction after bariatric surgery. Hellenic J Cardiol 56: 61-65.
8. Ewing BT, Thompson MA, Wachtel MS, Frezza EE (2011) A cost-benefit analysis of bariatric surgery on the South Plains region of Texas. Obes Surg 21: 644-649.
9. Gulcicek OB, Ozdogan K, Solmaz A, Yigitbas H, Altınay S, Gunes A, Celik DS, Yavuz E, Celik A, Celebi F (2016) Metabolic and histopathological effects of sleeve gastrectomy and gastric plication: an experimental rodent model. Food Nutr Res 60: 30888.
10. Gunbatar N, Bayiroglu F (2015) The effect of a highly saturated fat diet and ıntermittent fasting diet on experimental colon cancer development and some serum ınflammation markers in rats 1 adiponectin and lipid metabolism. Van Vet J 26: 123-127.
11. Hirth DA, Jones EL, Rothchild KB, Mitchell BC, Schoen JA (2015) Laparoscopic sleeve gastrectomy: long-term weight loss outcomes. Surg Obes Relat Dis 11: 1004-1007.
12. López-Nava BG, Bautista-Castaño I, Jimenez A, de Grado T, Fernandez-Corbelle JP (2015) The Primary Obesity Surgery Endolumenal (POSE) procedure: one-year patient weight loss and safety outcomes. Surg Obes Relat Dis 11: 861-865.
13. Guimarães M, Nora M, Ferreira T, Andrade S, Ribeiro AM, Oliveira V, Carreira MC, Casanueva FF, Monteiro MP (2013) Sleeve gastrectomy and gastric plication in the rat result in weight loss with different endocrine profiles. Obes Surg 23: 710-717.
14. Masarone M, Federico A, Abenavoli L, Loguercio C, Persico M (2014) Non alcoholic fatty liver: epidemiology and natural history. Rev Recent Clin Trials 9: 126-133.
15. Saber SM, Abd El-Rahman HA (2019) Liraglutide treatment effects on rat ovarian and uterine tissues. Reprod Biol 19: 237-244
16. Shi X, Karmali S, Sharma AM, Birch DW (2010) A review of laparoscopic sleeve gastrectomy for morbid obesity. Obes Surg 20: 1171-1177.
17. Sturis J, Gotfredsen CF, Rømer J, Rolin B, Ribel U, Brand CL, Wilken M, Wassermann K, Deacon CF, Carr RD, Knudsen LB (2003) GLP-1 derivative liraglutide in rats with beta-cell deficiencies: influence of metabolic state on beta-cell mass dynamics. Br J Pharmacol 140: 123-132.
18. Tadokoro S, Ide S, Tokuyama R, Umeki H, Tatehara S, Kataoka S, Satomura K (2015) Leptin promotes wound healing in the skin. PLoS One 10: e0121242.
19. Talebpour M, Sadid D, Talebpour A, Sharifi A, Davari FV (2017) Comparison of short term effectiveness and postoperative complications: laparoscopic gastric plication vs laparoscopic sleeve gastrectomy. Obes Surg 28: 996-1001.
20. Zhou SJ, Bai L, Lv L, Chen R, Li CJ, Liu XY, Yu DM, Yu P (2014) Liraglutide ameliorates renal injury in streptozotocin induced diabetic rats by activating endothelial nitric oxide synthase activity via the downregulation of the nuclear factor kappaB pathway. Mol Med Rep 10: 2587-2594.
Go to article

Authors and Affiliations

H. Bilge
1
O. Basol
1
E. Yıldızhan
2
B.V. Ulger
3
H. Temiz
4
M. Akkus
2
I. Yıldızhan
5

  1. Department of General Surgery, SBU Gazi Yaşargil Training and research Hospital, Elazığ Road 10.Km Üçkuyular location 21070, Diyarbakır, Turkey
  2. Dicle University, Faculty of Medicine, Department of Histology and Embryology, Kıtılbıl Mah. 21280, Diyarbakır, Turkey
  3. Dicle University, Faculty of Medicine, Department of General Surgery, Kıtılbıl Mah. 21280, Diyarbakır, Turkey
  4. Dicle University, Faculty of Medicine, Department of Microbiology, Kıtılbıl Mah. 21280, Diyarbakır, Turkey
  5. Iğdır University, Faculty of Agricultural Technology, Department of Agricultural Technology, Şehit Bülent Yurtseven Kampüsü, & Karaağaç Kampüsü, 76000 Iğdır, Turkey

This page uses 'cookies'. Learn more