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Irrigation effects on diameter growth of 2-year-old Paulownia tomentosa saplings

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Journal of Forestry Research 2015年第1期26卷 153-157页

作者： Javad Eshaghi Rad Seyed rostam mousavi Mirkala Department of Forestry Faculty of Natural ResourcesUrmia University

Species of Paulownia are fast-growing trees that are planted in many countries in green spaces and agroforestry systems. We studied the influence of irrigation on the diameter growth of 2-year-old Paulownia tomentosa saplings planted in 3 m 9 3 m grids at Nazlou Campus of Urmia University, Iran. Completely randomized experimental design was used with four irrigation amount, viz.10, 15, 20 and 25 L, and three irrigation intervals, viz. 3-and 6-days, in 8 replications. During the growth season, we measured collar diameters of all saplings at the end of each month. Diameter growth declined with reduced irrigation amount and increased irrigation interval. The lowest average diameter growth（9 mm） was recorded for 10 L water at 6-day intervals and maximum average diameter growth（28.7 mm） was recorded for 25 L volume at 3-day intervals. The latter treatment resulted in significantly greater diameter growth than any other treatment（except20 L at 3-day intervals）. More than 80 % of diameter growth was achieved in the first 3 months. Therefore, it is essential to irrigate with 25 L of water at 3-day intervals during the first three growth months to achieve maximum diameter growth for 2-year-old P. tomentosa saplings.

关键词： Paulownia tomentosa Diameter growth Irrigation interval Iran

Time consumption, productivity, and cost analysis of the motor manual tree felling and processing in the Hyrcanian Forest in Iran

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Journal of Forestry Research 2011年第4期22卷 665-669页

作者： rostam mousavi Mehrdad Nikouy Jori Uusitalo University of Guilan Somea Sara Department of Forestry Guilan Iran Natural Resources Faculty Forestry Department. Urmia University. P.O. Box 165 Urmia Iran Finnish Forest Research Institute Parkano Research Unit Kaironie- mentie 54 FI-39700 Parkano Finland

An empirical time study was cohducted to evaluate the performance of the current felling and tree processing methods used in Northern Iran＇s Hyrcanian forest. Motor-manual felling is done mostly in winter, while tree processing starts when the felling season ends. We identified the elements of felling and processing work phases, and 142 cycles and 110 cycles were respectively recorded for felling and processing. On the basis of data analysis （time study）, we developed statistical models of effective time consumption in the respective work phase and for its total productivity. The production rate of felling with and without delay time was 9.7 and 11.65 trees per hour （0.17 USD.m^-3 and 0.21 USD-m^-3）, and the average production cost with and without delay was 1.21 USD and 1.45 USD per tree, respectively. The average productivity of processing was 35 m^3 per effective hour and the average unit cost of processing was 0.92 USD.m^-3.

关键词： Motor-manual felling time study chainsaw processing cost forest work study

Combined Effects of Exposure to Noise and Vibration on Human Postural Equilibrium under Simulated Driving Conditions

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Sound & Vibration 2022年第1期56卷 37-49页

作者： Seyyed Mohammad Javad Golhosseini Mohsen Aliabadi rostam Golmohammadi Maryam Farhadian Mehdi Akbari Morteza Hamidi Nahrani Mehdi Samavati Department of Occupational Health Engineering School of Public HealthHamadan University of Medical SciencesHamadanIran Center of Excellence for Occupational Health School of Public Health and Occupational Health&Safety Research CenterHamadan University of Medical SciencesHamadanIran Center of Excellence for Occupational Health School of Public Health and Research Center for Health SciencesHamadan University of Medical SciencesHamadanIran Department of Biostatistics School of Public Health and Research Center for Health SciencesHamadan University of Medical SciencesHamadanIran Department of Audiology School of RehabilitationIran University of Medical SciencesTehranIran Department of Audiology School of RehabilitationHamadan University of Medical SciencesHamadanIran Department of Medical Physics and Biomedical Engineering School of MedicineTehran University of Medical SciencesTehranIran

There is little information about drivers’body balance responses to combined exposure of noise and *** fill the gap,this study aims to investigate the combined effects of exposure to noise and whole-body vibration(WBV)on the body balance under simulated driving *** this purpose,30 male participants were exposed to noise level at 85 dB(A)and two vibration levels(0.87 and 1.3 m/s^(2))in five *** design of the study was repeated-measures,and it attempted to assess the effects of 40 minutes of exposure to noise and/or ***,the participants’fatigue was measured with the Borg scale(CR 10).The findings revealed there was a significant change in body sway after WBV and combined noise and WBV exposure(p0.05).The effect sizes of exposure to noise,WBV(1.3 m/s^(2)),and combined noise and WBV(1.3 m/s^(2))on body balance were 0.035,0.425,and 0.635,***,single exposure to WBV caused more fatigue than single exposure to noise(p<0.05).Combined noise and WBV exposure descriptively caused more fatigue in comparison with the influence of WBV *** study concluded that the combined effects of exposure to noise and vibration are more than the sum of ***,some synergistic effects may be observed in human body *** is essential to increase drivers’awareness and revise current health care interventions about new possible effects of combined exposures.

关键词： Body balance noise whole-body vibration(WBV) fatigue combined exposure

Precipitation forecasting by large-scale climate indices and machine learning techniques

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Journal of Arid Land 2020年第5期12卷 854-864页

作者： Mehdi GHOLAMI rostam Seyyed Javad SADATINEJAD Arash MALEKIAN University of Tehran Tehran ***Iran

Global warming is one of the most complicated challenges of our time causing considerable tension on our societies and on the *** impacts of global warming are felt unprecedentedly in a wide variety of ways from shifting weather patterns that threatens food production,to rising sea levels that deteriorates the risk of catastrophic *** all aspects related to global warming,there is a growing concern on water resource *** field is targeted at preventing future water crisis threatening human *** very first stage in such management is to recognize the prospective climate parameters influencing the future water resource *** prediction models,methods and tools,in this case,have been developed and applied so *** line with trend,the current study intends to compare three optimization algorithms on the platform of a multilayer perceptron(MLP)network to explore any meaningful connection between large-scale climate indices(LSCIs)and precipitation in the capital of Iran,a country which is located in an arid and semi-arid region and suffers from severe water scarcity caused by mismanagement over years and intensified by global *** situation has propelled a great deal of population to immigrate towards more developed cities within the country especially towards ***,the current and future environmental conditions of this city especially its water supply conditions are of great *** tackle this complication an outlook for the future precipitation should be provided and appropriate forecasting trajectories compatible with this region's characteristics should be *** this end,the present study investigates three training methods namely backpropagation(BP),genetic algorithms(GAs),and particle swarm optimization(PSO)algorithms on a MLP *** frameworks distinguished by their input compositions are denoted in this study:Concurrent Model Framework(CMF)and Integrated Model Framework(

关键词： backpropagation genetic algorithms machine learning multilayer perceptron particle swarm optimization Taylor diagram

Psychological problems as the major cause of fatigue in clients undergoing hemodialysis: A qualitative study

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International Journal of Nursing Sciences 2018年第3期5卷 262-267页

作者： Zahra Rezaei Amir Jalali rostam Jalali Behnam Khaledi-Paveh Student Research Committee School of Nursing and MidwiferyKermanshah University of medical sciencesKermanshahIran Psychiatric Nursing Department School of Nursing and MidwiferyKermanshah University of Medical SciencesKermanshahIran Nursing Department School of Nursing and MidwiferyKermanshah University of Medical SciencesKermanshahIran

Background:It is obvious that hemodialysis is a stressful process,leading to numerous social and psychological problems,and may cause fatigue and ***:This study aimed to explain the experiences of hemodialysis clients regarding the effect of psychological problems on ***:This article was extracted from a qualitative study conducted on clients undergoing hemodialysis in *** this end,a total of 15 participants were purposefully selected using the snowball sampling method and the required data was collected using individual,face to face,detailed and semi-structured *** were 12 client interviewees and one doctor,one nurse and one hemodialysis client's *** analysis was used to analyze the ***:Continuous analysis of data and documents obtained from the interviews on the hemodialysis clients'experiences and comments regarding the main causes of fatigue revealed two main categories:1)Psychological effects with subcategories of psychological stress and exhaustion;2)Needs and constraints with subcategories of individual and social needs and ***:According to the clients'speech and expression analysis,psychological impacts and disease-induced needs and constraints were the most important cause of fatigue and its continuation among these clients.

关键词： Fatigue Hemodialysis Patients Pressure Qualitative research

Three-dimensional oscillation of an acoustic microbubble between two rigid curved plates

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Journal of Hydrodynamics 2021年第5期33卷 1019-1034页

作者： Kawa M.A.Manmi Imad A.Aziz Arun Arjunan rostam K.Saeed Abdolrahman Dadvand Department ofMathematics College of ScienceSalahaddin University-ErbilKurdistan RegionIraq Department of Information Technology College of Engineering and Computer ScienceLebanese French UniversityKurdistan RegionIraq Faculty of Science and Engineering University of WolverhamptonWolverhamptonUK Faculty of Mechanical Engineering Urmia University of TechnologyUrmiaIran Karlsruhe Institute of Technology(KIT) Institute for Chemical Technology and Polymer ChemistryKarlsruheGermany

Understanding the near boundary acoustic oscillation of microbubbles is critical for the effective design of ultrasonic biomedical devices and surface cleaning ***,this study investigates the three-dimensional microbubble oscillation between two curved rigid plates experiencing a planar acoustic field using boundary integral method(BIM).The numerical model is validated via comparison with the nonlinear oscillation of the bubble governed by the modified Rayleigh-Plesset equation and with the axisymmetric model for an acoustic microbubble in infinite fluid ***,the influence of the wave direction and horizontal standoff distance(h)on the bubble dynamics(including jet velocity,jet direction,centroid movement,total energy,and Kelvin impulse)were *** was concluded that the jet velocity,the maximum radius and the total energy of the bubble are not significantly influenced by the wave direction,while the jet direction and the high-pressure region depend strongly on *** importantly,it was found that the jet velocity and the high-pressure region around the jet in acoustic bubble are drastically larger than their counterparts in the gas bubble.

关键词： Acoustic microbubble bubble dynamics boundary integral method(BIM) two curved plates potential flow

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Towards a BRICS Law

China Today 2019年第11期68卷 32-34页

作者： rostam J.NEUWIRTH Department of Global Legal Studies at University of Macao (China)

ON November 13-14,2019,the 11th BRICS annual summit of the heads of state and heads of government of the five member states Brazil,Russia,India,China,and South Africa will be held in Brasilia,*** event marks the anniversary of 10 successful BRICS summits and presents an opportunity to take stock of past achievements and assess present challenges.

关键词： BRICS Brazil anniversary

SO2 REMOVAL FROM COAL COMBUSTION GASES

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SO2 REMOVAL FROM COAL COMBUSTION GASES

Influence of Ca Content on Binding Energy and Cooper Pairing in Y1-xCaxBa2Cu3O7-δCompound

Third Joint China/USA Chemical Engineering Conference

作者： Massoud rostam-Abadi University of Illinois Illinois State Geological Survey 615 E.Peabody Dr.ChampaignIL 61820

＜正＞Coal is a main energy source for China and the Chinese coals have a wide range of sulfur content. Similar to the environmental standards set in Europe and the United States, the Chinese Government is taking steps to reduce SO2 emissions from the flue gas of power and industrial plants. During the past two to three decades, a number of SO2 control technologies have been developed and demonstrated for a range of sulfur removal options, for both new and retrofit plants, and for cost-effective use with

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World Journal of Condensed Matter Physics 2015年第1期5卷 18-26页

作者： Bassam M. Mustafa Abbas H. rostam Department of Physics College of Science Mosul University Mosul Iraq

In this research, the influence of calcium content on the binding energy and Cooper pairing is investigated for the high temperature superconducting Y1-xCaxBa2Cu3O7-δ compound where x = 0 - 0.2). This is done by using model considering that the formation of Cooper pairs happens during tunneling mechanism of holes between the two CuO2 layers in the YCBCO crystal which are considered as forming adjacent potential wells. In this work, we make some modifications on the mentioned model and a modified equation for the binding energy as a function of Ca concentration is formulated to study the effect of Ca content by considering the change in the distance between the CuO2 layer as a function of Ca. The calculated results agree very well with experimental results. This happens because the Ca2+ substitution for Y3+ leads to decreasing the distance between the two CuO2 layers and hence potential energy of the system will be decreased. This leads to decreasing the binding energy between the Cooper pairs, and decreasing the distance between the two CuO2 layers increasing the tunneling probability of holes between the two CuO2 layers and thus increasing conduction mechanism and thus increasing current density, but this will decrease the energy gap and as a result decrease the critical temperature. The calculated results agree very well with experimental results.

关键词： Superconductor Binding Energy Formation of Cooper Pairing Cooper Pairing in HTSC