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| 1 | Prediction of cavity growth rate during underground coal gasification using multiple regression analysis显示文摘 | Mehdi Najafi Seyed Mohammad Esmaiel Jalali Reza KhaloKakaie Farrokh Forouhandeh | 2015 | International Journal of Coal Science & Technology2015,2,4: | 7 |
| 2 | Power systems wide-area voltage stability assessment considering dissimilar load variations and credible contingencies显示文摘This paper reveals that the existing techniques have some deficiencies in the proper estimation of voltage stability margin(VSM) when applied to a power system with different load change scenarios.The problem gets worse when credible contingencies occur.This paper proposes a real-time wide-area approach to estimate VSM of power systems with different possible load change scenarios under normal and contingency operating conditions.The new method is based on an artificial neural network(ANN) whose inputs are bus voltage phasors captured by phasor measurement units(PMUs) and rates of change of active power loads.A new input feature is also accommodated to overcome the inability of trained ANN in prediction of VSM under N-1 and N-2 contingencies.With a new algorithm, the number of contingencies is reduced for the effective training of ANN.Robustness of the proposed technique is assured through adding a random noise to input variables.To deal with systems with a limited number of PMUs, a search algorithm is accomplished to identify the optimal placement of PMUs.The proposed method is examined on the IEEE 6-bus and the New England 39-bus test system.Results show that the VSM could be predicted with less than 1% error. | Bahram SHAKERIGHADI Farrokh AMINIFAR Saeed AFSHARNIA | 2019 | Journal of Modern Power Systems and Clean Energy2019,7,1: | 7 |
| 3 | A capillary force model for interactions between two spheres显示文摘Based on the method of energy principle, an analytical approach for computing the capillary force for sphere/sphere geometry is presented in this paper. In modeling the capillary force, we consider spheres with both equal and non-equal radii, for both symmetric and asymmetric conflgurations at liquid/solid interfaces. We use numerical analysis to investigate the validity and efflciency of the derived model. The effect of various parameters including humidity, distance between two spheres, radii of spheres and contact angles on the meniscus force are investigated. Finally the results obtained from the model are compared with experimental measurements, and the accuracy and precision of the presented approach is verifled. | Amir Farrokh Payam Morteza Fathipour | 2011 | Particuology2011,9,4: | 7 |
| 4 | Comparison of ultrasonography and radiography in diagnosis of rib fractures显示文摘肋骨破裂是源于钝胸损伤的最普通的骨胳的胸的损害。肋骨破裂的一半没在精确物理评估和拍之上被检测。最近, ultrasonography (USG ) 被调查了检测肋骨破裂。但是基于文学, USG 的实用性广泛地变化。这研究被进行与这代表性的研究,有次要的钝胸损伤的连续病人和怀疑的肋骨折断在位于马什哈德伊朗的阿訇 Reza 医院里介绍的 radiography.MethodsIn 比较在可能的肋骨破裂的察觉调查 USG 的角色,被 USG 和X光线照相术在2013年4月和2013年10月之间估计。X 光线照相术在胸设计和倾斜的肋骨看法在损伤的区域上集中了的 posteroanterior (PA ) 被执行。在拿 USG 和 X 光线照相术花的时间持续时间被记录。破裂的流行和地点由 USG 表明病人们被估计, X 光线照相术是怀疑的 compared.ResultsSixty 一个。到女比率的男性与一个平均数是 2.4:1 (43 个男人和 18 个女人)? 潲楳? | Elham Pishbin Koorosh Ahmadi Molood Foogardi Maryam Salehi Farrokh Seilanian Toosi Vafa Rahimi-Movaghar | 2017 | Chinese Journal of Traumatology2017,20,4: | 5 |
| 5 | Resonant pitch and roll silicon gyroscopes with sub-micron-gap slanted electrodes:Breaking the barrier toward high-performance monolithic inertial measurement units显示文摘This paper presents the design,fabrication,and characterization of a novel high quality factor(Q)resonant pitch/roll gyroscope implemented in a 40μm(100)silicon-on-insulator(SOI)substrate without using the deep reactive-ion etching(DRIE)process.The featured silicon gyroscope has a mode-matched operating frequency of 200 kHz and is the first out-of-plane pitch/roll gyroscope with electrostatic quadrature tuning capability to fully compensate for fabrication non-idealities and variation in SOI thickness.The quadrature tuning is enabled by slanted electrodes with sub-micron capacitive gaps along the(111)plane created by an anisotropic wet etching.The quadrature cancellation enables a 20-fold improvement in the scale factor for a typical fabricated device.Noise measurement of quadrature-cancelled mode-matched devices shows an angle random walk(ARW)of 0.63°√h^(−1) and a bias instability of 37.7°h^(−1),partially limited by the noise of the interface electronics.The elimination of silicon DRIE in the anisotropically wet-etched gyroscope improves the gyroscope robustness against the process variation and reduces the fabrication costs.The use of a slanted electrode for quadrature tuning demonstrates an effective path to reach high-performance in future pitch and roll gyroscope designs for the implementation of single-chip high-precision inertial measurement units(IMUs). | Haoran Wen Anosh Daruwalla Farrokh Ayazi | 2017 | Microsystems & Nanoengineering2017,3,1: | 4 |
| 6 | Substrate-decoupled,bulk-acoustic wave gyroscopes:Design and evaluation of next-generation environmentally robust devices显示文摘This paper reports on a new type of high-frequency mode-matched gyroscope with significantly reduced dependencies on environmental stimuli such as temperature,vibration,and shock.A novel stress-isolation system is used to effectively decouple an axis-symmetric bulk-acoustic wave(BAW)vibratory gyro from its substrate,minimizing the effect that external sources of error have on the offset and scale factor of the device.Substrate-decoupled(SD)BAW gyros with a resonance frequency of 4.3 MHz and Q values near 60000 were implemented using the high aspect ratio poly and single-crystal silicon(HARPSS)process to achieve ultra-narrow capacitive gaps.Wafer-level packaged sensors were interfaced with a customized application-specific integrated circuit(ASIC)to achieve low variations in the offset across temperature(±26°s^(−1) from−40 to 85℃),supreme random-vibration immunity(0.012°s^(−1) gRMS−1)and excellent shock rejection.With a scale factor of 800μV(°s^(−1))^(−1),the SD-BAW gyro system attains a large full-scale range(±1250°s^(−1))with a non-linearity of less than 0.07%.A measured angle-random walk(ARW)of 0.39°/√h and a bias instability of 10.5°h^(−1) are dominated by the thermal and flicker noise of the integrated circuit(IC),respectively.Additional measurements using external electronics show bias-instability values as low as 3.5°h−1,which are limited by feed-through signals coupled from the drive loop to the sense channel,which can be further reduced through proper re-routing of the gyroscope pin-out configuration. | Diego E.Serrano Mohammad F.Zaman Amir Rahafrooz Peter Hrudey Ron Lipka Duane Younkin Shin Nagpal Ijaz Jafri Farrokh Ayazi | 2016 | Microsystems & Nanoengineering2016,2,1: | 3 |
| 7 | Susceptibility of Anopheles maculipennis to different classes of insecticides in West Azarbaijan Province, Northwestern Iran显示文摘Objective: To determine the susceptibility status of Anopheles maculipennis(An. maculipennis) against the major insecticides used in the health sectors in West Azarbaijan Province, Northwestern Iran.Methods: Unfed 3-5 days old adult females of An. maculipennis were collected across the West Azarbaijan Province and were subjected to evaluation of their susceptibility following World Health Organization recommended protocol against six insecticides(permethrin, deltamethrin, propoxur, bendiocarb, malathion and dieldrin) belonging to four different classes. Results: In this study, 916 specimens of An. maculipennis were examined against the insecticides which indicated that An. maculipennis was tolerant to permethrin, deltamethrin and dielderin, but displayed resistance against propoxur, bendiocarb and malathion. Conclusions: The pattern of resistance in An. maculipennis could be attributed to the agricultural landscapes, agricultural pesticides used and the exposure of the mosquitoes to insecticides. Logical cooperation is needed between the agriculture and health sectors to ensure the judicious use of pesticides in each sector and the management of probable resistance. | Ali Reza Chavshin Farrokh Dabiri Hassan Vatandoost Mulood Mohammadi Bavani | 2015 | Asian Pacific Journal of Tropical Biomedicine2015,5,5: | 2 |
| 8 | Earthquake Disaster Risk Reduction in Iran:Lessons and 'Lessons Learned' from Three Large Earthquake Disasters——Tabas 1978,Rudbar 1990,and Bam 2003显示文摘This article addresses three large earthquake disasters in Iran: Tabas in 1978, Rudbar in 1990, and Bam in 2003. Lessons and 'Lessons Learned' from these three earthquake disasters were investigated together with their contributions over time towards earthquake disaster risk reduction in Iran. Many lessons from 1978 Tabas, 1990 Rudbar, and 2003 Bam did not become 'Lessons Learned' and they were identified again within the dramatic context of other earthquake disasters in various places of Iran. Both lessons and 'Lessons Learned' from Tabas, Rudbar, Bam,and other earthquake disasters in Iran require a sustainable long-term framework—an earthquake culture. | Michaela Ibrion Mohammad Mokhtari Farrokh Nadim | 2015 | International Journal of Disaster Risk Science2015,6,4: | 2 |
| 9 | Grain size, strain rate, and temperature dependence of flow stress in ultra-fine grained and nanocrystalline Cu and Al: Synthesis, experiment, and constitutive modeling显示文摘 | Babak Farrokh Akhtar S. Khan | 2008 | International Journal of Plasticity2008,,5: | 2 |
| 10 | Diffusion‐weighted MRI for staging and evaluation of response in diffuse large B‐cell lymphoma: a pilot study显示文摘 | Marilyn J. Siegel Clint E. Jokerst Dhana Rajderkar Charles F. Hildebolt Sagun Goyal Farrokh Dehdashti Nina Wagner Johnston Barry A. Siegel | 2014 | NMR Biomed2014,,: | 2 |
| 11 | Gold nanoparticle imaging and radiotherapy of brain tumors in mice显示文摘 | James F Hainfeld Henry M Smilowitz Michael J O&rsquor Connor Farrokh Avraham Dilmanian Daniel N Slatkin | 2013 | Nanomedicine2013,,10: | 1 |
| 12 | The automated breast volume scanner(AB~S):initial experiences in lesion detection compared with conventional handheld B-mode uhrasound:a pilot study of 50 cases显示文摘 | Wojcinski S Farrokh A Hille U | 2011 | Int J Women'' s Health2011,3,11: | 1 |
| 13 | Product platform design:method and application 显示文摘 | Timothy W Simpson Jonathan R A Maier Farrokh Mistree | 2001 | Engineering Design2001,13,1: | 1 |
| 14 | A memetic algorithm for the flexi- ble flow line scheduling problem with processor blocking 显示文摘 | REZA T M NIMA S FARROKH S | 2009 | Com- puters & Operations Research2009,36,2: | 1 |
| 15 | Process and temperature compensation in a 7 MHz CMOS clock oscillator显示文摘 | Krishnakumar Sundaresan Phillip E Allen Farrokh Ayazi | | 0,,02: | 1 |
| 16 | Evaluation of real time tissue sono-elastography in the Assessment of 214 breast lesions: limitations of this method Resulting from dif- ferent histologic subtypes, tumor size and tumor localization显示文摘 | Farrokh A Wojeinski S Degenhardt F | 2013 | Ultrasound IVied Biol2013,39,12: | 1 |
| 17 | Trypanblue induces apoptosis in human retinal pigment epithelial cells显示文摘 | REZAI KA FARROKH SIAR L GASYNA EM | 2004 | Am J Ophthalmol2004,138,3: | 1 |
| 18 | The automated breast volume scanner (AB- VS): initial experiences in lesion detection compared with conventional handheld B - mode ultrasound: a pilot study of 50 cases 显示文摘 | Wojcinski S Farrokh A Hille U | 2011 | IntJWomensHealth2011,3,1: | 1 |
| 19 | Grid of the Future-Are We Ready to Transition to a Smart Grid?显示文摘 | Ahipakchi Farrokh Albuyeh | 2009 | IEEE Power & Energy Magazine2009,7,2: | 1 |
| 20 | Grain size, strain rate, and temperature dependence of flow stress in ultra-fine grained and nanocrystalline Cu and AI: Synthesis, experiment, and constitutive modeling 显示文摘 | Farrokh Babak Khan Akhtar S | 2009 | International Journal of Plasticity2009,25,: | 1 |