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| 1 | Elastic properties of chiral,anti-chiral,and hierarchical honeycombs:A simple energy-based approach显示文摘The effects of two geometric refinement strategies widespread in natural structures, chirality and self-similar hierarchy, on the in-plane elastic response of two-dimensional honeycombs were studied systematically. Simple closed-form expressions were derived for the elastic moduli of several chiral, antichiral, and hierarchical honeycombs with hexagon and square based networks. Finite element analysis was employed to validate the analytical estimates of the elastic moduli. The results were also compared with the numerical and experimental data available in the literature. We found that introducing a hierarchical refinement increases the Young's modulus of hexagon based honeycombs while decreases their shear modulus. For square based honeycombs, hierarchy increases the shear modulus while decreasing their Young's modulus. Introducing chirality was shown to always decrease the Young's modulus and Poisson's ratio of the structure. However, chirality remains the only route to auxeticity. In particular, we found that anti-tetra-chiral structures were capable of simultaneously exhibiting anisotropy, auxeticity,and remarkably low shear modulus as the magnitude of the chirality of the unit cell increases. | Davood Mousanezhad Babak Haghpanah Ranajay Ghosh Abdel Magid Hamouda Harold Nayeb-Hashemi Ashkan Vaziri | 2016 | Theoretical & Applied Mechanics Letters2016，6，2： | 11 |
| 2 | Microstructure and mechanical properties of Al/Cu/Mg laminated composite sheets produced by the ARB proces显示文摘In the present study, an Al/Cu/Mg multi-layered composite was produced by accumulative roll bonding(ARB) through seven passes, and its microstructure and mechanical properties were evaluated. The microstructure investigations show that plastic instability occurred in both the copper and magnesium reinforcements in the primary sandwich. In addition, a composite with a perfectly uniform distribution of copper and magnesium reinforcing layers was produced during the last pass. By increasing the number of ARB cycles, the microhardness of the layers including aluminum, copper, and magnesium was significantly increased. The ultimate tensile strength of the sandwich was enhanced continually and reached a maximum value of 355.5 MPa. This strength value was about 3.2, 2, and 2.1 times higher than the initial strength values for the aluminum, copper, and magnesium sheets, respectively. Investigation of tensile fracture surfaces during the ARB process indicated that the fracture mechanism changed to shear ductile at the seventh pass. | Davood Rahmatabadi Moslem Tayyebi Ramin Hashemi Ghader Faraji | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，5： | 10 |
| 3 | Effect of Nano Clay on Corrosion Protection of Zinc-rich Epoxy Coatings on Steel 37显示文摘Epoxy zinc rich coatings containing clay nanoparticles were prepared and the effect of clay content on the cathodic protection performance of the coatings was evaluated by electrochemical impedance spectroscopy(EIS) and immersion test. Open circuit potential(OCP) measurements and immersion tests were also carried out to better understand the behavior of zinc rich coating. EIS and OCP measurements showed that addition of 1 wt% clay improved the cathodic protection duration and sacrificial properties of the epoxy zinc rich coating. Transmission electron microscopy(TEM) photographs confirmed that clay nanoparticles were successfully dispersed in the coating matrix loaded with 1 wt% clay. Immersion test results indicated that addition of 1 wt% clay nanoparticles in zinc rich epoxy coatings increased the cathodic protection ability of coatings. | Farhad Tohidi Shirehjini Iman Danaee Hadi Eskandari Davood Zarei | 2016 | Journal of Materials Science & Technology2016，32，11： | 9 |
| 4 | Risk factors of gastroesophageal reflux disease in Shiraz,southern Iran显示文摘AIM: To determine the prevalence and symptoms of gastroesophageal reflux disease (GERD) in a healthy general population in relation to demographic,lifestyle and health-seeking behaviors in Shiraz,southern Iran. METHODS: A total of 1978 subjects aged > 35 years who referred to Gastroenterohepatology Research Center and who completed a questionnaire consisting of 27 questions for GERD in relation to demographic,lifestyle and health-seeking behaviors were included in this study for a period of five months. The validity and reliability of the questionnaire were determined. RESULTS: The prevalence of GERD was 15.4%,which was higher in females (17.3%),in rural areas (19.8%),and in illiterate subjects (21.5%) and those with a mean age of 50.25 years. The prevalence was significantly lower in subjects having fried food (14.8%),and fruit and vegetables (14.6%). More symptoms were noticed in subjects consuming pickles (22.1%),taking aspirin (21%) and in subjects with psychological distresses (27.2%) and headaches (22%). The correlation was statistically significant between GERD and halitosis (18.3%),dyspepsia (30.6%),anxiety (19.5%),nightmares (23.9%) and restlessness (18.5%). Their health seeking behavior showed that there was a significant restriction of diet (20%),consumption of herbal medicine (19%),using over-the-counter drugs (29.9%) and consulting with physicians (24.8%). Presence of GERD symptoms was also significantly related to a previous family history of the disease (22.3%).CONCLUSION: GERD is more common in females,rural and illiterate subjects and correlated with consumption of pickles,occurrence of headache,psychological distress,dyspepsia,halitosis,anxiety,nightmare and restlessness,and a family history of GERD and aspirin intake,but the correlation was negative with consumption of fat and fiber intake. | Mehdi Saberi-Firoozi Farnaz Khademolhosseini Maryam Yousefi Davood Mehrabani Najaf Zare Seyed Taghi Heydari | 2007 | World Journal of Gastroenterology2007，13，41： | 7 |
| 5 | 两个多孔水平同心圆柱间的层流传热和纳米流体流动的数值研究(英文)显示文摘研究了在 Re=10,25,50,75,100 和铜纳米粒子体积分数分别为 0, 0.2%,0.5%,2%和 5%,多孔介质孔隙率分别为 0.5 和 0.9 条件下多孔水平同心圆柱间的层流传热和纳米流体流动。在雷诺数分别为 100、75 和 50 时,与第一种几何形式相比,第二种几何形式的对流系数分别增加了 8.3%、7%和 5.5%。对 300 和 1200 W/m^2两种热通量的出口温度进行比较,发现热通量增加 4 倍,温度增加了2.5%。此外,较高的 Nusselt 数与第二种几何形状相关,分别出现在 0.9 和 0.5 的孔隙度。在这两种几何结构中,孔隙度为 0.9 时的 Nusselt 数值较高,这是由于孔隙度较高时纳米流体对流增加所致。在第一几何形状和孔隙度下,纳米流体的出口的速度比进口速度增加 2 倍。同样,在第二个几何图形和两个孔隙度上都实现 3 倍的增长。 | Mehdi MIRZAEYAN Davood TOGHRAIE | 2019 | Journal of Central South University2019，26，7： | 7 |
| 6 | Comparison between Emergency Severity Index and Heart Failure Triage Scale in heart failure patients: A randomized clinical trial显示文摘BACKGROUND:It is not clear whether Emergency Severity Index(ESI)is valid to triage heart failure(HF)patients and if HF patients benefi t more from a customized triage scale or not.The aim of study is to compare the effect of Heart Failure Triage Scale(HFTS)and ESI on mistriage among patients with HF who present to the emergency department(ED).METHODS:A randomized clinical trial was conducted from April to June 2017.HF patients with dyspnea were randomly assigned to HFTS or ESI groups.Triage level,used resources and time to electrocardiogram(ECG)were compared between both groups among HF patients who were admitted to coronary care unit(CCU),cardiac unit(CU)and discharged patients from the ED.Content validity was examined using Kappa designating agreement on relevance(K*).Reliability of both scale was evaluated using inter-observer agreement(Kappa).RESULTS:Seventy-three and 74 HF patients were assigned to HFTS and ESI groups respectively.Time to ECG in HFTS group was signifi cantly shorter than that of ESI group(2.05 vs.16.82 minutes).Triage level between HFTS and ESI groups was signifi cantly different among patients admitted to CCU(1.0 vs.2.8),cardiac unit(2.26 vs.3.06)and discharged patients from the ED(3.53 vs.2.86).Used resources in HFTS group was significantly different among triage levels(H=25.89;df=3;P<0.001).CONCLUSION:HFTS is associated with less mistriage than ESI for triaging HF patients.It is recommended to make use of HFTS to triage HF patients in the ED. | Ahmad Pouyamehr Amir Mirhaghi Mohammad Davood Sharifi Ali Eshraghi | 2019 | World Journal of Emergency Medicine2019，10，4： | 5 |
| 7 | Hepatitis B virus genotypes in southwest Iran: Molecular, serological and clinical outcomes显示文摘AIM: To investigate the associations of hepatitis B virus (HBV) genotype with HBeAg and anti-HBe status, alanine aminotransferase (ALT) levels and HBV-DNA detection in different groups of HBV-infected patients in southwest Iran. METHODS: A total of 89 HBsAg-positive serum samples were collected from the same number of patients. All sera were then investigated to determine HBV DNA and serological markers. For all the polymerase chain reaction (PCR)-positive samples, biochemical, histopathological assays and genotyping were also performed. RESULTS: Genotype D was the only type of HBV foundin different clinical forms of acute and chronic infections. There was a high prevalence of HBeAg-negative HBV- infected patients with chronic hepatitis (52.7%). Out of 55 patients with chronic hepatitis, seven (12.7%) were diagnosed with cirrhosis. A significant association between the presence of anti-HBe antibody and an increase in ALT level, among either HBeAg-negative (P = 0.01) or HBeAg-positive (P = 0.026) patients, was demonstrated. No significant differences were observed between the clinical outcomes of HBeAg-positive and -negative individuals (P = 0.24). CONCLUSION: Genotype D has been recognized as the only type of HBV found in different clinical forms of HBV infections, including cirrhosis, among the residents of southwest Iran. Anti-HBe possibly plays a role in disease progression in some patients with chronic hepatitis, at least for a period of disease. | Anahita Mojiri Abbas Behzad-Behbahani Mehdei Saberifirozi Maryam Ardabili Mahmood Beheshti Marjan Rahsaz Mehrdad Banihashemi Negar Azarpira Bita Geramizadeh Baharak Khadang Afsaneh Moaddeb Mojgan Ghaedi Tahereh Heidari Ardeshir Torab Alireza Salah Saeid Amirzadeh Zahra Jowkar Davood Mehrabani Samad Amini-Bavil-Olyaee Mohammad Ali Dehyadegari | 2008 | World Journal of Gastroenterology2008，14，10： | 4 |
| 8 | Effect of Lorentz forces on forced-convection nanofluid flow over a stretched surface显示文摘 | Mohsen Sheikholeslami M.T. Mustafa Davood Domiri Ganji | 2016 | Particuology2016，14，3： | 3 |
| 9 | Wet 2,4,6-trichloro-1,3,5-triazine(TCT) as an efficient catalyst for the synthesis of 2,4,6-triarylpyridines under solvent-free conditions显示文摘2,4,6-triarylpyridines 的有效一个壶合成被描述了。这在 130 潣普物敭在没有溶剂的状况下面面对湿 2,4,6-trichloro-1,3,5-triazine (TCT ) 的催化数量包含醛,酉同类和铵醋酸盐的三部件的反应吗?? | Behrooz Maleki Davood Azarifar Hojat Veisi Seyede Fatemeh Hojati Hafezeh Salehabadi Razieh Nejat Yami | 2010 | Chinese Chemical Letters2010，21，11： | 3 |
| 10 | Hydrothermal synthesis of star-like and dendritic PbS nanoparticles from new precursors显示文摘Lead sulfide (PbS) nanostructures with different morphologies and particle sizes were obtained via a simple hydrothermal reaction between lead (Ⅱ) salicylate (Pb(Hsal) 2 ) and thiourea (tu). Reaction products were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible (UV-vis) and Fourier transform infrared (FT-IR) spectroscopy. Morphology of the product, varying from star-like to dendritic, depends on the mole ratio of tu to (Pb(Hsal) 2 ), pH, and reaction time. | Masoud Salavati-Niasari Davood Ghanbari | 2012 | Particuology2012，10，5： | 2 |
| 11 | A facile and one-pot electrochemical method for the synthesis of a new anthraquinonethioether显示文摘反应电气化学地与 2-mercaptobenzothiazole 和 2-mercaptobenzoxazole 作为一个迈克尔领受人产生了 anthradiquinone,,在乙醇 / 水混合物的 nucleophiles 借助于周期的 voltammetry 被学习了。我们的 voltammetric 数据显示那生产 anthradiquinone 参予有 nucleophiles 并且经由 ECEC 机制的反应变换成新 anthraquinonethioether 衍生物的迈克尔增加。基于 EC 机制,有 nucleophiles 的 anthradiquinone 的迈克尔反应的观察的同类的率常数被把试验性的周期的 voltammograms 与数字模仿的结果作比较估计。 | Davood Nematollahi Bayan Moradi Fahimeh Varmaghani | 2012 | Chinese Chemical Letters2012，23，5： | 2 |
| 12 | Chronic traumatic ankle and foot osteomyelitis: a nationwide case-control study显示文摘Background: Osteomyelitis(OM) is an atypical consequence of ankle-foot trauma which is associated with long-term mental and physical morbidity and persistent pain. This study aimed to assess the health status of OM patients with war-related ankle-foot injuries.Methods: A total of 1129 veterans with ankle-foot injuries participated in a case-control study(2014–2016). Thirty patients with chronic OM of the ankle-foot were compared with 90 non-OM participants as the control group. Quality of life(QOL), life satisfaction and the ability to perform basic and instrumental activities of daily living were measured using the following questionnaires: short-form health survey(SF-36), satisfaction with life scale(SWLS), activity of daily living(ADL) and instrumental activity of daily living(IADL), respectively. OM patients were categorized according to their risk factors as A, B and C hosts using a modified version of the Cierny and Mader classification system. The one sample t-test, 2-independent sample t-test, ANOVA, Pearson correlation coefficient and multiple linear regression analyses were applied to analyze the data.Results: Ankle-foot pain leading to surgery(P <0.001) and orthosis usage(P =0.039) were more common in OM patients. There was no significant difference between the two groups in the prevalence of pulmonary and cardiovascular diseases or kidney failure and other related diseases. OM patients showed a significantly lower level of mental health compared to non-OM respondents(P=0.025). Approximately, 70.0% of ankle-foot injured veterans were dissatisfied with their life, and there was no difference between the two groups(P>0.05). Mobility was significantly lower in the OM patients than in the control group(P=0.023). Life satisfaction(P=0.001) and the ability to perform daily activities were the determinants for poor physical(P=0.018) and mental health-related quality of life(P=0.012). According to the Cierny and Mader classification system, they were all included in the type C host classification, with one major and/or three or more minor risk factors.Conclusion: A low level of quality and satisfaction of life and ability to perform activities of daily living were observed in OM patients with war-related ankle-foot injuries. Surgeries of the ankle and foot due to pain were much more common in OM patients than in non-OM participants. Since all the participants were classified as the C-host, health policy planning seems to be necessary. | Maryam Hosseini Mostafa Allami Mohammadreza Soroush Fateme Babaha Javad Minooeefar Davood Rahimpoor | 2018 | Military Medical Research2018，5，4： | 2 |
| 13 | 甲烷气体还原锰矿和水热沉淀法制备纳米MnO_2(英文)显示文摘采用甲烷气体还原锰矿、溶解和水热沉淀方法制备MnO2纳米棒。甲烷气体还原反应在850、875、900、925和950℃下进行120min,生成α-MnO2纳米棒的沉淀反应在25~90℃下进行90min。采用SEM和X射线衍射对制备的产物形貌和颗粒尺寸进行表征。采用比表面分析仪测定产物的BET和BJH值。结果表明,在反应温度950℃下,MnO相大量生成,而MnO2相消失。所制备的α-MnO2纳米棒的平均直径约为50mm,其BET比表面积为174m2/g。 | Davood MORADKHANI Mahdieh M ALEKZADEH Eltefat AHMADI | 2013 | Transactions of Nonferrous Metals Society of China2013，23，1： | 2 |
| 14 | Azole derivatives embedded in montmorillonite clay nanocarriers as corrosion inhibitors of mild steel显示文摘Azole derivatives such as 2-mercaptobenzothiazole(MBT) and 2-mercaptobenzimidazole(MBI) were introduced as corrosion inhibitors into the interlayer space of sodium montmorillonite clay(Na+-MMT). The corrosion protection behavior of mild steel in solutions containing MBT, MBI, MMT + MBT, MMT + MBI, Na^+-MMT, and NaCl(3.5 wt%) was evaluated using polarization and electrochemical impedance spectroscopy(EIS). Also, the release of penetrated species into the medium from the clay nanocarriers was evaluated using ultraviolet-visible(UV-Vis) spectroscopy. Small-angle X-ray scattering(SAXS) confirmed the insertion of MBT and MBI into the inner space of the clay layers and the interaction between two organic and inorganic phases. Scanning electron microscopy(SEM) was used to assess the morphology of the surface of the steel samples after the samples had been immersed for 24 h in the extraction solution. The corrosion protection in the solutions with clay nanocarriers containing MBT and MBI was better than that in solutions without MMT. The UV-Vis results showed that the release of MBI species from Na+-MMT nanocarriers in neutral pH was far lower than that of MBT species. | Milad Edraki Davood Zaarei | 2019 | International Journal of Minerals,Metallurgy and Materials2019，26，1： | 2 |
| 15 | Fuzzy Tuned PID Controller for Envisioned Agricultural Manipulator显示文摘The implementation of image-based phenotyping systems has become an important aspect of crop and plant science research which has shown tremendous growth over the years. Accurate determination of features using images requires stable imaging and very precise processing. By installing a camera on a mechanical arm driven by motor, the maintenance of accuracy and stability becomes non-trivial. As per the state-of-the-art, the issue of external camera shake incurred due to vibration is a great concern in capturing accurate images, which may be induced by the driving motor of the manipulator. So, there is a requirement for a stable active controller for sufficient vibration attenuation of the manipulator. However, there are very few reports in agricultural practices which use control algorithms. Although, many control strategies have been utilized to control the vibration in manipulators associated to various applications, no control strategy with validated stability has been provided to control the vibration in such envisioned agricultural manipulator with simple low-cost hardware devices with the compensation of non-linearities. So, in this work, the combination of proportional-integral-differential(PID) control with type-2 fuzzy logic(T2-F-PID) is implemented for vibration control. The validation of the controller stability using Lyapunov analysis is established. A torsional actuator(TA) is applied for mitigating torsional vibration, which is a new contribution in the area of agricultural manipulators. Also, to prove the effectiveness of the controller, the vibration attenuation results with T2-F-PID is compared with conventional PD/PID controllers, and a type-1 fuzzy PID(T1-F-PID) controller. | Satyam Paul Ajay Arunachalam Davood Khodadad Henrik Andreasson Olena Rubanenko | 2021 | International Journal of Automation and computing2021，18，4： | 2 |
| 16 | Facile and one-pot,electro-organic synthesis of a new bis-quinone by the ECCE mechanism in green media显示文摘Electrochemical oxidation of 4-methyl catechol(1a) is investigated in the presence of 1,3-indandione(3)as nucleophile in phosphate buffer solution(0.2 mol/L,pH 6) mixed with ethanol as organic green solvent(50/50) using cyclic voltammetry and controlled-potential coulometry.The results indicated thatquinones derived from electro-oxidation of 1a,participated in a 1,4-Michael addition reaction with1,3-indandione(3) under ECCE mechanism.In this direction,a new bis-quinone was synthesized in high yield and good purity using a facile and convenient electrochemical pathway by carbon anode electrodes in an undivided cell. | Mohsen Ameri Alireza Asghari Ali Amoozadeh Mohammad Bakherad Davood Nematollahi | 2014 | Chinese Chemical Letters2014，25，12： | 2 |
| 17 | Silica-supported 1,3-dichloro-5,5-dimethylhydantoin(DCH) as a useful reagent for microwave-assisted aromatization of 1,3,5-trisubstituted pyrazolines under solvent-free conditions显示文摘1,3,5-Trisubstituted pyrazolines 被 1,3-dichloro-5,5-dimethylhydantoin (DCH ) 很快并且方便地在微波照耀下面在答案和没有溶剂的条件氧化到他们的相应 pyrazoles。一个支持的代理人被显示在减少反应时间并且增加收益有效的硅石胶化的存在。 | Davood Azarifar Elahe Nadimi Mohammd Mehdi Ghanbari | 2011 | Chinese Chemical Letters2011，22，4： | 2 |
| 18 | Separation of zinc from manganese, magnesium, calcium and cadmium using batch countercurrent extraction simulation followed by scrubbing and stripping显示文摘 | Hossein Kamran Haghighi Davood Moradkhani Mohammad Mehdi Salarirad | 2015 | Hydrometallurgy2015，，： | 2 |
| 19 | 结构特征对沉积岩工程性质的影响显示文摘岩石力学特性的估计在各种岩土工程中非常重要,这些特征主要受岩石微细结构特征的影响。为了将织构系数与力学性能联系起来,测量了干容重、有效孔隙率、点荷载指数、施密特回弹硬度、单轴抗压强度和织构系数。根据ASTM和ISRM标准从Kalidromo(希腊中部)采集了包括9块石灰岩和11块泥岩在内的20块沉积岩样品,进行了全面的实验室测试,对其矿物学和岩石学性质、结构特征及X射线衍射进行了研究,并对所得结果进行了统计描述和分析。纹理系数的最大值为0.13,最小值为0.50。颗粒含量较高岩石的值最高。采用回归分析的方法研究了结构系数与工程性能之间的关系。建立了经验方程并选取了最佳的决定系数,结果表明,所有工程特性与纹理系数具有良好的相关性。 | DIAMANTIS Konstantinos FEREIDOONI Davood KHAJEVAND Reza MIGIROS George | 2021 | Journal of Central South University2021，28，3： | 2 |
| 20 | Analysis and optimization of a composite leaf spring 显示文摘 | Mahmood M S Davood Rezaei | 2003 | Composite Structures2003，60，： | 1 |
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