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Increasing the performance of energy harvesting in vibration mode shapes
Jabbari, Majid,Ghayour, Mostafa,Mirdamadi, Hamid Reza Techno-Press 2016 Advances in computational design Vol.1 No.2
This paper presents a method of design for the energy harvesting of a piezoelectric cantilever beam. Vibration modes have strain nodes where the strain distribution changes in the direction of the beam length. Covering the strain nodes of the vibration modes with continuous electrodes effects a cancellation of the voltages outputs. The use of segmented electrodes avoids cancellations of the voltage for multi-mode vibration. The resistive load affects the voltage and generated power. The optimum resistive load is considered for segmented and continuous electrodes, and then the power output is verified. One of the effective parameters on energy harvesting performance is the existence of concentrated mass. This topic is studied in this paper. Resonance and off-resonance cases are considered for the harvester. In this paper, both theoretical and experimental methods are used for satisfactory results.
Homaei-Shandiz, Fatemeh,Mehrad-Majd, Hassan,Tasbandi, Mojtaba,Aledavood, Amir,Afshari, Jalil Tavakol,Ghavami, Vahid,Ghayour-Mobarhan, Majid Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.10
Background and Aim: Breast cancer is a major healthcare problem in women. There are many reports about up-regulation of Hsp27 in cancer tissues but less is known about the potential relationship between Hsp27 antibody levels and breast cancer complications. We here investigated concentrations of serum Hsp27 antigen and antibodies in subjects with and without breast cancer and assessed potential associations with two-year disease-free survival, histological grade and number of lymph nodes. Materials and Methods: Specifically, serum Hsp27 antigen and antibody levels from 97 patients with breast cancer, and 65 healthy controls were determined by enzyme-linkedimmunosorbent assays (ELISAs). Results: Serum Hsp27 and antibody levels were significantly (p<0.001) higher in patients with breast cancer compared to the control group, but no relationship were found with two-year disease free survival, histological grade or number of lymph nodes (p> 0.6, 0.2 and 0.9 respectively). Conclusions: Elevated levels of Hsp27 antibody occur with women with breast cancer but do not appear to be associated with the presence of disease clinical complications.
LETTER TO THE EDITOR : High Levels of Anti-Heat Shock Protein 27 Antibody in Pemphigus Vulgaris
Mohammad Javad Yazdanpanah,Ali Reza Taji,Zari Javidi,Fakhrozaman Pezeshkpoor,Amir Ali Rahsepar,Shima Tavallaie,Akram Momenzadeh,Saber Shojaie Noori,Mohsen Khoddami,Sara Rahsepar,Majid Ghayour M 대한피부과학회 2013 Annals of Dermatology Vol.25 No.2