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| 1 | Use of acoustic intensity measurements in underwater acoustics (Modern state and prospects)显示文摘This paper discusses scalar and vector characteristics of underwater ambient noise which were explored by the authors and their colleagues in different regions of the Earth Ocean.The measurements presented were performed in 6 Hz - 1000 Hz band, at depths up to 1000 m and wind speeds less than 15 m/s. The following questions are addressed: ratio between edsotropic (coherent) and isotropic (diffusive) parts of ambient noise; noise energy transport and its cotmection with surface waves propagation direction; noise energy flow cancenation by opposite energy flow of signal; signal-to-noise ratio for combined receiver in dynamic noise field. It follows from the results presellted, that further development of underwater intensity measurements opens new opportunities for investigations in the fields of underwater acoustics and oceanology. | Vladimir A. Shchurov Marianna V. Kuyanova(Pacific Oceanological Institute, Far Eastern Branch of Russian Academg of Sciences Russia) | 1999 | Chinese Journal of Acoustics1999,18,4: | 9 |
| 2 | Effect of melting temperature on microstructural evolutions, behavior and corrosion morphology of Hadfield austenitic manganese steel in the casting process显示文摘In this study, the effect of melting temperature on the microstructural evolutions, behavior, and corrosion morphology of Hadfield steel in the casting process is investigated. The mold was prepared by the sodium silicate/CO_2 method, using a blind riser, and then the desired molten steel was obtained using a coreless induction furnace. The casting was performed at melting temperatures of 1350, 1400, 1450, and 1500°C, and the cast blocks were immediately quenched in water. Optical microscopy was used to analyze the microstructure, and scanning electron microscopy(SEM) and X-ray diffractrometry(XRD) were used to analyze the corrosion morphology and phase formation in the microstructure, respectively. The corrosion behavior of the samples was analyzed using a potentiodynamic polarization test and electrochemical impedance spectroscopy(EIS) in 3.5 wt% NaCl. The optical microscopy observations and XRD patterns show that the increase in melting temperature led to a decrease of carbides and an increase in the austenite grain size in the Hadfield steel microstructure. The corrosion tests results show that with increasing melting temperature in the casting process, Hadfield steel shows a higher corrosion resistance. The SEM images of the corrosion morphologies show that the reduction of melting temperature in the Hadfield steel casting process induced micro-galvanic corrosion conditions. | Masoud Sabzi Sadegh Moeini Far Saeid Mersagh Dezfuli | 2018 | International Journal of Minerals,Metallurgy and Materials2018,25,12: | 5 |
| 3 | 放电等离子烧结添加TiC开孔钛基复合材料的磨损模式(英文)显示文摘采用放电等离子烧结法制备具有开孔隙的钛基复合材料(TMCs),研究添加TiC增强颗粒对材料摩擦性能的影响。材料中含有同等摩尔比的Ti和TiH2以及不同体积分数的TiC(0、3%、10%和30%),烧结温度为850℃。采用纳米压痕和磨损试验评估材料的纳米硬度和耐磨性能,摩擦试验采用球-平面接触往复滑动模式。结果显示,随着TiC含量的增加,材料的纳米硬度从5 GPa增加到14 GPa。当TiC含量为10%时,材料的摩擦因数最低(0.2),磨损率也最低。当TiC含量较低时,样品发生粘着磨损,并伴随严重的塑性变形;当TiC含量适中时,样品表面形成机械混合层(MML);当TiC含量较高时,样品的主要磨损机制为磨粒磨损。总之,随着TiC含量的变化,材料的磨损机制、摩擦因数和磨损量也随之变化。 | I. FARíAS L. OLMOS O. JIMéNEZ M. FLORES A. BRAEM J. VLEUGELS | 2019 | Transactions of Nonferrous Metals Society of China2019,29,8: | 5 |
| 4 | Hot Deformation Characteristics of 34CrMo4 Steel显示文摘The 34CrMo4(AISI 4130)steel is extensively utilized in the compressed natural gas cylinders.Due to the importance of thermomechanical processing in the production of these cylinders,the dynamic recrystallization(DRX)characteristics of 34CrMo4 steel were investigated.The effect of hot deformation parameters such as temperature and strain rate on the dynamic restoration processes of a 34CrMo4 alloy was studied.Hot compression tests were performed in the temperature range of 900 to 1100 ℃ and the strain rate range of 0.001 to 0.1 s-1.Hot workability of this alloy has been analyzed by employing flow localization parameter.The flow curves observed are typical of occurrence of dynamic recrystallization and have exhibited single or multiple peaks in flow stress curve before reaching steady state,depending on the temperature and strain rates.The flow stress decreases with the increase of deformation temperature and the decrease of strain rate.Finally the activation energy obtained in this research is 490.749 kJ/mol. | S V Sajadi Far M Ketabchi M R Nourani | 2010 | Journal of Iron and Steel Research(International)2010,17,12: | 4 |
| 5 | 纳米氧化铝作为第三层对热障涂层中热生长氧化物层的改善(英文)显示文摘在热障涂层的顶层与连接层界面之间会生成热生长氧化物层。当涂层热暴露在空气中时,这种热生长氧化物的生长会导致陶瓷层与连接层的剥落。研究了4种大气等离子喷涂热障涂层在空气中的耐高温氧化性能。将这4种涂层放在1000°C的电炉中在空气下分别保温24、48和120h。组织观察表明,在纳米NiCrAlY/YSZ/纳米Al2O3涂层中,热生长氧化物层的生长速率远比其它3种涂层中的低。EDS和XRD分析表明,在热生长氧化物(Al2O3)涂层上,生成了Ni(Cr,Al)2O4混合氧化物(尖晶石型)和NiO,在纳米NiCrAlY/YSZ/纳米Al2O3涂层中,这种生长在Al2O3层上的有害混合氧化物层的厚度比在其它涂层中的低很多。 | Mohammadreza DAROONPARVAR Muhamad Azizi Mat YAJID Noordin Mohd YUSOF Saeed FAR AHANY Mohammad Sakhawat HUSSAIN Hamid Reza BAKHSHESHIRAD Z.VALEFI Ahmad ABDOLAHI | 2013 | Transactions of Nonferrous Metals Society of China2013,23,5: | 4 |
| 6 | Quantitative risk of positive family history in developing colorectal cancer: A meta-analysis显示文摘BACKGROUND Positive family history is a risk factor for development of colorectal cancer.Despite numerous studies on the topic,the absolute risk in patients with a positive family history remains unclear and therefore studies are lacking to validate non-invasive screening methods in individuals with positive family history.AIM To quantify the risk of colorectal cancer in individuals with a positive family history.METHODS A comprehensive electronic literature search was performed using PubMed from January 1955 until November 2017,EMBASE from 1947 until 2018,and Cochrane Library without date restrictions.Two independent reviewers conducted study selection,data extraction and quality assessment.A meta-analysis of Mantel-Haenzel relative risks was performed using the random effects model.Newcastle-Ottawa scale was used to score the quality of selected papers.Funnel plot and Egger’s regression test was performed to detect publication bias.Subgroup analysis was performed comparing Asian and non-Asian studies.Sensitivity analyses were performed to rule out the effect of the timing of the study,overall quality,the main outcome and the effect of each individual study in overall result.RESULTS Forty-six out of 3390 studies,including 906981 patients were included in the final analysis.41 of the included studies were case-control and 5 were cohort.A positive family history of colorectal cancer in first-degree relatives was associated with significantly increased risk of colorectal cancer with a relative risk of 1.87(95%CI:1.68-2.09;P<0.00001).Cochrane Q test was significant(P<0.00001,I2=90%).Egger’s regression test showed asymmetry in the funnel plot and therefore the Trim and Fill method was used which confirmed the validity of the results.There was no difference between Asian versus non-Asian studies.Results remained robust in sensitivity analyses.CONCLUSION Individuals with a positive family history of colorectal cancer are 1.87 times more likely to develop colorectal cancer.Screening guidelines should pay specific attention to individuals with positive family history and further studies need to be done on validating current screening methods or developing new modalities in this high-risk population. | Parsa Mehraban Far Abdulaziz Alshahrani Mohammad Yaghoobi | 2019 | World Journal of Gastroenterology2019,25,30: | 4 |
| 7 | Mass budgets of the Lambert, Mellor and Fisher Glaciers and basal fluxes beneath their flowbands on Amery Ice Shelf显示文摘We used in situ measurements and remote-sensing data sets to evaluate the mass budgets of the Lambert, Mellor and Fisher Glaciers and the basal melting and freezing rates beneath their flowbands on the Amery Ice Shelf. Our findings show the Lambert and Mellor Glaciers upstream of the ANARE Lambert Glacier Basin (LGB) traverse may have positive imbalances of 3.9±2.1 Gt a-1 and 2.1±2.4 Gt a-1, respectively, while the Fisher Glacier is approximately in balance. The upstream region as a whole has a positive imbalance of 5.9±4.9 Gt a-1. The three same glaciers downstream of the ANARE LGB traverse line are in negative imbalance, where the whole downstream region has a negative imbalance of -8.5±5.8 Gt a-1. Overall the mass budgets of the Lambert, Mellor, and Fisher Glaciers are close to bal-ance, and the collective three-glacier system is also nearly in balance with a mass budget of -2.6±6.5 Gt a-1. The significant positive imbalances for the interior basin upstream of the ice-movement stations established in the early 1970s (GL line) reported previously are possibly due to an overestimate of the total accumulation and an underestimate of the ice flux through the GL line. The mean melting rate is -23.0±3.5 m ice a-1 near the southern grounding line, which decreases rapidly downstream, and transitions to refreezing at around 300 km from the southern extremity of the Amery Ice Shelf. Freezing rates along the flowbands are around 0.5±0.1 to 1.5±0.2 m ice a-1. The per-centage of ice lost from the interior by basal melting beneath the flowbands is about 80%±5%. The total basal melting and refreezing beneath the three flowbands is 50.3±7.5 Gt ice a-1 and 7.0±1.1 Gt ice a-1, respectively. We find a much larger total basal melting and net melting than the results for the whole Amery Ice Shelf derived from previous modeling and oceanographic measurements. | Kenneth C. JEZEK Beata M. CSATHó Ute C. HERZFELD Katy L. FARNESS Philippe HUYBRECHTS | 2007 | Science China Earth Sciences2007,50,11: | 4 |
| 8 | Impacts of the precision agricultural technologies in Iran: An analysis experts’ perception & their determinants显示文摘Nowadays agricultural methods developments that are productively,economically,environmentally and socially sustainable are required immediately.The concept of precision agriculture is becoming an attractive idea for managing natural resources and realizing modern sustainable agricultural development.The purpose of this study was to investigate factors influencing impacts of precision agriculture from the viewpoints of Boushehr Province experts.The research method was a cross sectional survey and multi-stage random sampling was used to collect data from 115 experts in Boushehr province.According to the results,experts found underground and surface waters conservation,rural areas development,increase of productivity and increasing income as the most important impacts of precision agricultural technologies.Experts’attitudes indicate their positive view toward these kinds of impacts.Also behavioral attitude has the most effect on impacts. | Somayeh Tohidyan Far Kurosh Rezaei-Moghaddam | 2018 | Information Processing in Agriculture2018,5,1: | 3 |
| 9 | Trauma care system in Iran显示文摘客观在伊朗的损害的高负担要求一个全面损伤照顾系统的建立。这份报纸的目的是关于部件和功能描述损伤系统的当前的地位。在一个损伤系统的所有部件的损伤系统的当前的地位通过与损伤专家和政策制造者一起的专家面板和半结构化的会见被描述的方法。当前结果,各种各样的组织涉及损害,而是损伤的一条综合系统途径的预防,管理和康复是相当缺乏的。在通过媒介,交通规定加强,医院照顾和 prehospital 服务的公共教育的区域有进行中的进步。同时,关于高风险组资助,立法和教育有差距。教育和前面的训练标准上的问题衬里医疗队和持续教育和评估还有待于被探讨。损伤登记在一些省被驾驶了,但是作为它需要开发得好的基础结构(关于职员,维护,金融资源) ,它还没在我们损伤照顾的系统被建立。看起来,有损伤的问题之一在伊朗在乎的结论是在损伤系统组织之中的协作的缺乏。尽管损伤病人的临床的管理在最近的十年在我们的国家改善了,减少损害的负担在一个损伤系统的上下文要求一条组织途径到损伤的预防和管理。 | Moussa Zargar Seyed Mohammad Reza Kalantar Motamedi Mojgan Karbakhsh Seyed Mohammad Ghodsi Vafa Rahimi-Movaghar Farzad Panahi Soheil Saadat Ali Khaji Seyed Mahdi Davachi Sarah Ganji Mahmoud Khodabandeh Shahab Abdollahi Far Morteza Abdollahi Mohammad Reza Zarei | 2011 | Chinese Journal of Traumatology2011,14,3: | 3 |
| 10 | Determination of safe mud window considering time-dependent variations of temperature and pore pressure:Analytical and numerical approaches显示文摘Wellbore stability is a key to have a successful drilling operation.Induced stresses are the main factors affecting wellbore instability and associated problems in drilling operations.These stresses are significantly impacted by pore pressure variation and thermal stresses in the field.In order to address wellbore instability problems,it is important to investigate the mechanisms of rockefluid interaction with respect to thermal and mechanical aspects.In order to understand the induced stresses,different mathematical models have been developed.In this study,the field equations governing the problem have been derived based on the thermo-poroelastic theory and solved analytically in Laplace domain.The results are transferred to time domain using Fourier inverse method.Finite difference method is also utilized to validate the results.Pore pressure and temperature distributions around the wellbore have been focused and simulated.Next,induced radial and tangential stresses for different cases of cooling and heating of formation are compared.In addition,the differences between thermo-poroelastic and poroelastic models in situation of permeable and impermeable wellbores are described.It is observed that cooling and pore pressure distribution reinforce the induced radial stress.Whereas cooling can be a tool to control and reduce tangential stress induced due to invasion of drilling fluid.In the next step,safe mud window is obtained using Mohr-Coulomb,Mogi-Coulomb,and modified Lade failure criteria for different inclinations.Temperature and pore pressure distributions do not change the minimum allowable wellbore pressure significantly.However,upper limit of mud window is sensitive to induced stresses and it seems vital to consider changes in temperature and pore pressure to avoid any failures.The widest and narrowest mud windows are proposed by modified Lade and Mohr-Coulomb failure criteria,respectively. | Alireza Gholilou Pouria Behnoud far Stephanie Vialle Mahyar Madadi | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017,9,5: | 2 |
| 11 | Domiciliary nasal intermittent p ositive pressure ventilation in severe COPD:effects on lung function and qua lity of life显示文摘 | Perrin C El Far Y Vandenbos F | 1997 | Eur Resp J1997,10,: | 2 |
| 12 | Prevalence of depression and anxiety among children with type 1 and type 2 diabetes:a systematic review and meta-analysis显示文摘Background Evaluation of psychiatric disorders in children is essential in timely treatment.Despite individual studies,there is no information on the exact status of psychiatric disorders in children.The present study was conducted to determine the prevalence of depression among children with type 1 and type 2 diabetes.Methods This meta-analysis is registered with PROSPERO(CRD42021231491).Several databases(Web of Science,Scopus,and PubMed)were searched from January 1,2000 to December 15,2020.The key words included:depression,anxiety,children,and diabetes.The steps of search,comprising screening,risk of bias,and extraction of study data,were performed separately by two researchers.Results It was found that a total of 109 studies had been conducted involving 52,493 children with type 1 and type 2 diabetes.These studies were included in the present review study.The prevalence of depression,anxiety among children with type 1 diabetes were 22.2%[95%confidence interval(CI)19.2–25.2],and 17.7%(95%CI 15.2–20.1),respectively.The prevalence of depression was higher among girls(29.7%)than boys(19.7%).The prevalence of depression was higher in lower-middle-income countries at 29.3%(95%CI 18.6–40.0).The prevalence of depression among children with type 2 diabetes was 22.7%(95%CI 17.3–28.0).Conclusion The results of the present study indicate the importance of paying attention to extensive periodic screening and appropriate activities to reduce pediatric depression. | Majidreza Akbarizadeh Mahin Naderi far Fereshteh Ghaljaei | 2022 | World Journal of Pediatrics2022,18,1: | 2 |
| 13 | 可降解镁合金支架聚合物涂层剥离的有限元模型及实验研究(英文)显示文摘可降解镁合金支架(MAS)能够改善商用裸支架和药物洗脱支架的长期治疗效果。由于镁合金支架在人体内降解速度太快,限制了其对病变血管的支撑性能。保护性聚合物涂层为镁合金支架提供了一种降低腐蚀速度的有效方法。然而,聚合物涂层在支架扩张时出现的剥离现象是阻碍其运用的一大障碍。在本研究中,分别运用有限元方法和实验方法对一种优化设计的镁合金支架进行了聚合物涂层剥离问题的研究。首先通过90o剥离实验测试,为粘聚区有限元模型提供了临界能量释放率,以此为基础的90o剥离的模拟结果和实验结果吻合良好。运用可靠的粘聚区模型参数,支架-聚合物涂层有限元模型考察了支架在扩张过程中是否会发生涂层剥离现象。本研究为考察支架聚合物涂层剥离现象提供了一种简单可靠的方法,为改善可降解镁合金支架的聚合物涂层性能提出了相应的建议。 | 吴卫 Lorenza Petrini Lina Altomare Silvia Farè Rosaria Tremamunno 于振涛 Francesco Migliavacca | 2014 | 稀有金属材料与工程2014,43,12: | 2 |
| 14 | Matrix gla protein is regulated by a mechanism functionally related to the calcium-sensing receptor显示文摘 | Farzaneh Far A Proudfoot D Weissberg P L et al | 2000 | Biochem Biophys Res Commun2000,277,3: | 1 |
| 15 | A New Mobile Payment Scheme for Roaming Services显示文摘 | Ren Junn Hwang Sheng Hua Shiau Ding Far Jan | 2007 | Electronic commerce Research and Applications2007,6,3: | 1 |
| 16 | Reduction of fungi and mycotoxins formation in seeds by gamma-radiation显示文摘 | Aziz NH Moussa LAA Far FME | 2004 | Journal of Food Safety2004,24,2: | 1 |
| 17 | Greenhouse gas emissions from the Tubul-Raqui estuary (central Chile 36°S)显示文摘 | Inger Daniel Michael DeGrandpre Laura Farías | 2013 | Estuarine, Coastal and Shelf Science2013,,: | 1 |
| 18 | The activity of siRNA in mammalian cell is related to structural target accessibility:a comparison with antisense oligonucleotides显示文摘 | Far R KK Sczakiel G | 2003 | Nucl Acid Res2003,31,15: | 1 |
| 19 | Gassification of heaign of seases associated with prostatic pan:prar prostatis or p-rost atodynia显示文摘 | Drach GN Far WR Meares | 1978 | Jard1978,120,7: | 1 |
| 20 | Anammox and denitrification in the oxygen minimum zone of the eastern South Pacific显示文摘 | Dalsgaard T Thamdrup B Farías L | 2012 | Limnology and Oceanography2012,57,5: | 1 |