Rainwater harvesting potentials for drought mitigation in Iran

Tabatabaee, J.,Han, M. Y. IWA Publishing 2010 Water Science & Technology Vol.62 No.4

<P>In order to evaluate the potential of rainwater harvesting (RWH) for mitigating water scarcity in a semi-arid zone of the country (Mashhad-Iran), three typical RWH systems were installed and monitored. The first system consists of 5,000 m2 natural ground catchment which was leveled and covered with plastic sheets allowing for maximum possible runoff generation. Surface runoff was conducted into a 500 m3 ground reservoir via a series of draining ditches and an end collection channel. The water collected from a plastic covered catchment was used for irrigation of dryland wheat cultivation. According to the result of two years measurements, grain yield was almost doubled in irrigated plots when compared to conventional rainfed cultivation. In the second RWH system, runoff generated from about 2 ha asphaltic road and parking was diverted into a 1,200 m3 ground reservoir. The results of 2 years measurement for reservoir inflow and outflow indicated that runoff generated during rainy season was sufficient to produce necessary water for irrigating 900 planted fruit trees during successive dry seasons. The last experiment reported here is about a 40 m2 roof area which was connected to a plastic tank for runoff measurement. The conclusion was that the proposed RWH system can produce enough water for building's toilets' flashes and other sanitary purposes so that the potable water could be saved considerably. In general, the results of three rainwater harvesting experiments showed the importance of using rainwater for compensating the effect of water shortages which is repeatedly occurring due to the effect of current climate change and ever increasing water utilization for drinking and food production.</P>

Artificial Rainwater Harvesting For Dryland Farming

( J. Tabatabaee ),( S. A. Haghayeghi ),( M. Ghocsi ),( M. Y. Han ) 한국물환경학회 ( 구 한국수질보전학회 ) 2008 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2008 No.-

Ce 3+ -Doped LaF3 Nanoparticles: Wet-Chemical Synthesis and Photo-Physical Characteristics “Optical Properties of LaF3:Ce Nanomaterials”

F. Tabatabaee,A.A. Sabbagh Alvani,H. Sameie,S. Moosakhani,R. Salimi,M. Taherian 대한금속·재료학회 2014 METALS AND MATERIALS International Vol.20 No.1

The most effective process parameters were determined to synthesize spherical LaF3 nanoparticles with controlla-ble size based on ethylenediaminetetraacetic acid (EDTA) via co-precipitation technique. Thermogravimetric-differential thermal analysis, X-ray diffraction, scanning electron microscopy, dynamic light scattering and FT-IRspectroscopy were used to characterize the resulting powders. Detailed investigations revealed that the optimalLaF3 host nano-material was obtained when NH4F was used as a fluoride source in the presence of EDTAat pH = 5. Furthermore, photoluminescence spectra showed an intense double emission peak at 289 and 302nm for cerium-doped LaF3 nanocrystals excited at 253 nm, which was assigned to the well-known 5d→4f(2F5/2 and2F7/2) transitions of Ce3+levels due to luminescence center mechanism. The experimental resultsindicate that the synthesized LaF3:0.05Ce powders with a band gap of 5.3 eV are promising phosphors for highdensity scintillators.

Geomechanical study of well stability in high-pressure, high-temperature conditions

Moradi, Seyyed Shahab Tabatabaee,Nikolaev, Nikolay I.,Chudinova, Inna V.,Martel, Aleksander S. Techno-Press 2018 Geomechanics & engineering Vol.16 No.3

Worldwide growth in hydrocarbon and energy demand is driving the oil and gas companies to drill more wells in complex situations such as areas with high-pressure, high-temperature conditions. As a result, in recent years the number of wells in these conditions have been increased significantly. Wellbore instability is one of the main issues during the drilling operation especially for directional and horizontal wells. Many researchers have studied the wellbore stability in complex situations and developed mathematical models to mitigate the instability problems before drilling operation. In this work, a fully coupled thermoporoelastic model is developed to study the well stability in high-pressure, high-temperature conditions. The results show that the performance of the model is highly dependent on the truly evaluated rock mechanical properties. It is noted that the rock mechanical properties should be evaluated at elevated pressures and temperatures. However, in many works, this is skipped and the mechanical properties, which are evaluated at room conditions, are entered into the model. Therefore, an accurate stability analysis of high-pressure, high-temperature wells is achieved by measuring the rock mechanical properties at elevated pressures and temperatures, as the difference between the model outputs is significant.

Breast Cancer Risk Factors in Women Participating in a Breast Screening Program: a Study on 11,850 Iranian Females

Sepandi, Mojtaba,Akrami, Majid,Tabatabaee, Hamidreza,Rajaeefard, Abdolreza,Tahmasebi, Sedigheh,Angali, Kambiz Ahmadi,Rezaianzadeh, Abbas,Talei, Abdolrasoul Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.19

The incidence rate of breast cancer in developed countries is almost three-fold higher than in developing countries. Iran has had one of the lowest incidence rates for breast cancer in the world, but during the recent decades a marked increase has been seen. The purpose of this study was to investigate some established risk factors of breast cancer in Iranian women. A study of 11,850 women participating in abreast screening program was conducted. The 197 women diagnosed with breast cancer and 11,653 healthy women were compared. Logistic regression was performed to investigate associations of reproductive and anthropometric factors with breast cancer risk. Family history of breast cancer (OR=1.94, 95%CI=1.35-2.78), occupation (OR= 1.65,95%CI=1.20-2.25), education level (OR=0.50,95%CI=0.28-0.91), parity (OR=0.27, 95%CI=0.12-0.59), menopausal status (OR=3.15, 95%CI=2.35-4.21), age at menarche (OR=0.33, 95%CI=0.15-0.70), and age at the first pregnancy (OR=4.10, 95%CI=1.13-14.77) were related to the risk of breast cancer. Decrease in parity may to some extent explain the rising trend of incidence of breast cancer incidence in Iranian women.

Joint Routing, Scheduling and Power Control for Large Interference Wireless Networks

Javad Kazemitabar,Vahid Tabatabaee,Hamid Jafarkhani 한국통신학회 2017 Journal of communications and networks Vol.19 No.4

We consider the problem of joint routing, scheduling andpower control in multi-hop wireless networks. We use a linear relationbetween link capacity and signal to interference noise ratio inour formulation. In a previous work, using a duality approach, theoptimal link scheduling and power control that minimizes the totalaverage transmission power is found. We formulate this problemas a linear programming problem with exponential number of constraints. To cope with the exponential number of constraints, wepropose an iterative algorithm based on the cutting plane method. The separation oracle for the cutting plane algorithm turns out tobe an element-wise concave optimization problem that can be effectivelysolved using branch and bound algorithm. We extend thesame method to find the optimal routing scheduling and powercontrol. Simulation results show that this methodology is more efficientand scalable compare to the previously proposed algorithm.

Relationship between meiotic spindles visualization and intracytoplasmic sperm injection outcomes in human oocytes

Elham Asa,Reza Tabatabaee,Ahmad Farrokhi,Reza Nejatbakhsh 대한해부학회 2017 Anatomy & Cell Biology Vol.50 No.1

In assisted reproductive techniques, the operator attempts to select morphologically best embryos to predict embryo viability. Development of polarized light microscope, which evaluates the oocytes’ spindles according to birefringence of living cells, had been helpful in oocyte selection. The aim of this study is evaluating the relationship between meiotic spindles visualization and intracytoplasmic sperm injection (ICSI) outcomes in human oocytes. In this study, 264 oocytes from 24 patients with an average age of 30.5±7.5 years with infertility duration of 1 to 10 years were collected. The oocytes were randomly allocated to the control injection group (n=126) and the oocyte imaging group (spindle-aligned group) (n=138). In the spindle-aligned group, the meiotic spindle was identified by means of polarized light microscope to align the spindle at 6 or 12 o’clock. Then the spindle-aligned group was divided into three sub-groups based on spindle morphology: fine, average, and (poor). After ICSI, embryos were checked every 24 hours and scored; 72 hours later, high-grade embryos were transferred intravaginally to uterus. This study showed that the fertilization rate in the spindle-aligned group was higher than the control group (P<0.05). After cleavage, a positive correlation was observed between spindle morphology and embryo morphology. Among the sub-groups of spindle-aligned group, the embryos’ morphology of the fine group was better than the other subgroups and embryos of the poor group had lower quality and more fragmentation. The results revealed that the selection of oocytes based on meiotic spindle imaging can significantly improve the rate of fertilization and embryo cleavage and certainly increase the rate of implantation.

Cauchy Completeness of κ-frames

M. M. Ebrahimi,M. Mahmoudi,M. Vojdani Tabatabaee 경북대학교 자연과학대학 수학과 2004 Kyungpook mathematical journal Vol.44 No.4

Considering general Cauchy filters for κ-frames, we prove some results about completeness, given by Banaschewski, for κ-frames. In particular, we show that a uniform-frame L is complete if and only if every general regular Cauchy filter of L is convergent.

Spatial Analysis of Common Gastrointestinal Tract Cancers in Counties of Iran

Soleimani, Ali,Hassanzadeh, Jafar,Motlagh, Ali Ghanbari,Tabatabaee, Hamidreza,Partovipour, Elham,Keshavarzi, Sareh,Hossein, Mohammad Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.9

Background: Gastrointestinal tract cancers are among the most common cancers in Iran and comprise approximately 38% of all the reported cases of cancer. This study aimed to describe the epidemiology and to investigate spatial clustering of common cancers of the gastrointestinal tract across the counties of Iran using full Bayesian smoothing and Moran I Index statistics. Materials and Methods: The data of the national registry cancer were used in this study. Besides, indirect standardized rates were calculated for 371 counties of Iranand smoothed using Winbug 1.4 software with a full Bayesian method. Global Moran I and local Moran I were also used to investigate clustering. Results: According to the results, 75,644 new cases of cancer were nationally registered in Iran among which 18,019 cases (23.8%) were esophagus, gastric, colorectal, and liver cancers. The results of Global Moran's I test were 0.60 (P=0.001), 0.47 (P=0.001), 0.29 (P=0.001), and 0.40 (P=0.001) for esophagus, gastric, colorectal, and liver cancers, respectively. This shows clustering of the four studied cancers in Iran at the national level. Conclusions: High level clustering of the cases was seen in northern, northwestern, western, and northeastern areas for esophagus, gastric, and colorectal cancers. Considering liver cancer, high clustering was observed in some counties in central, northeastern, and southern areas.

Pathological Profile of Patients with Breast Diseases in Shiraz

Rezaianzadeh, Abbas,Sepandi, Mojtaba,Akrami, Majid,Tabatabaee, Hamidreza,Rajaeefard, Abdolreza,Tahmasebi, Sedigheh,Talei, Abdolrasoul Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.19

Background: Around 200,000 breast disorders are annually diagnosed all over the world. Fibrocystic changes are the most common breast disorder and fibroadenoma is the most prevalent benign breast tumor. The present study aimed to determine the spectrum, type and prevalence of breast masses in women referred to Shiraz University of Medical Sciences between 2004 and 2012. Materials and Methods: A cross-sectional study was conducted on the diagnostic reports data. Results: A total of 640 samples were studied. Most 57.3% of masses were detected in the left breast, 65%, 28.2% and 6.1% of cases presenting with benign, malignant, and inflammatory lesions, respectively. Among all the samples the most prevalent diagnosis (37.7%) was fibroadenoma and fibrocystic lesions (17%). 174 samples (96% of the malignant cases) were invasive. 6.5% of the benign, and 37% of the malignant cases occurred in post menopause women and the differences were statistically significant. Among those with malignant tumors lymph nodes were involved in 25.6% of menopausal women and 44.2% of non-menopausal ones, and the difference was statistically significant. Conclusions: Regular clinical breast examination beside mammographic follow-ups, especially during menopause, should be carried out as a priority and a national organized program should be designed for screening breast disorders.