|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Soil Organic Carbon Pools in Particle-Size Fractions as Affected by Slope Gradient and Land Use Change in Hilly Regions,Western Iran显示文摘This study was conducted to explore the effects of topography and land use changes on particulate organic carbon(POC),particulate total nitrogen(PTN),organic carbon(OC) and total nitrogen(TN) associated with different size primary particle fractions in hilly regions of western Iran.Three popular land uses in the selected site including natural forest(NF),disturbed forest(DF) and cultivated land(CL) and three slope gradients(0-10 %,S1,10-30 %,S2,and 30-50%,S3) were employed as the basis of soil sampling.A total of 99 soil samples were taken from the 0-10 cm surface layer in the whole studied hilly region studied.The results showed that the POC in the forest land use in all slope gradients was considerably more than the deforested and cultivated lands and the highest value was observed at NF-S1 treatment with 9.13%.The values of PTN were significantly higher in the forest land use and in the down slopes(0.5%) than in the deforested and cultivated counterparts and steep slopes(0.09%) except for the CL land use.The C:N ratios in POC fraction were around 17-18 in the forest land and around 23 in the cultivated land.In forest land,the silt-associated OC was highest among the primary particles.The enrichment factor of SOC,EC,was the highest for POC.For the primary particles,EC of both primary fractions of silt and clay showed following trend for selected land uses and slope gradients:CL> DF> NF and S3 > S2> S1.Slope gradient of landscape significantly affected the OC and TN contents associated with the silt and clay particles,whereas higher OC and TN contents were observed in lower positions and the lowest value was measured in the steep slopes.Overall,the results showed that native forest land improves soil organic carbon storage and can reduce the carbon emission and soil erosion especially in the mountainous regions with high rainfall in west of Iran. | Parisa Mokhtari KARCHEGANI Shamsollah AYOUBI Mohammad Reza MOSADDEGHI Naser HONARJOO | 2012 | Journal of Mountain Science2012，9，1： | 10 |
| 2 | 利用Cryo-SEM和图像处理技术评价老化和再生沥青低温抗裂性的新方法显示文摘高掺量RAP沥青混合料的低温抗裂性是一个受到关注的问题,以前的研究中常使用各种再生剂使温度裂缝的数量达到最小。该文采用傅里叶变换红外光谱测定沥青的氧化程度。为了评价老化沥青和再生沥青的低温抗裂性,首先采用低温扫描电镜(CryoSEM)获取断裂表面的图像,然后使用图像处理技术分析Cryo-SEM图像,结合再生沥青产生的断裂面比老化沥青少。最后根据断裂指数对每种沥青的低温抗裂性进行排序。采用Cryo-SEM技术结合图像处理技术可以更加形象地观察沥青断裂表面,而且可以通过计算断裂指数来评价沥青的低温抗裂性。 | 冯新军 陈旺 Ali Mokhtari Hosin David Lee R.Christopher Williams | 2018 | 中外公路2018，38，5： | 7 |
| 3 | Effect of acupotomy versus electroacupuncture on ethology and morphology in a rabbit model of knee osteoarthritis显示文摘OBJECTIVE: To evaluate the treatment effect of acupotomy(Apo) in a rabbit model of knee osteoarthritis(KOA), compare the results of Apo versus electroacupuncture(E-Apu) on ethology, morphology, and structure of the articular cartilage surface in a rabbit model of KOA, and analyze the differences in the treatment effects of Apo versus E-Apu.METHODS: Twenty-eight male New Zealand white rabbits were randomized into four groups: normal control, blank model, Apo, and E-Apu(n = 7 in each group). Except for the normal control group, the left hindlegs of all rabbits were fixed in an extended position for 5 weeks to establish the KOA model.The passive range of motion(PROM) and Lequesne index were measured before and after the establishment of the KOA model to assess the ethology in all groups. Safranin O-fast green staining and the Mankin score were used to assess the morphological cartilaginous changes to compare the effect of Apo versus E-Apu on the degeneration of articular cartilage, and to identify which therapy was superior in treating KOA.RESULTS: Compared with before the establishment of the KOA model, the Lequesne index of the KOA model rabbits was significantly increased(P <0.01), while the PROM was significantly decreased(P < 0.01). The articular cartilaginous tissue in the three model groups exhibited pathological variations in the form of laminar derangement of cartilage cells, and so the Mankin score was significantly increased compared with the control group(P <0.01). At 1 week after the final treatment session,compared with the blank model group, both the Apo and E-Apu groups showed a significant decrease in the Lequesne index(P < 0.01), and attenuation in the degree of morphologic pathological changes(P < 0.05); The Apo improved the PROM significantly compared with the blank model group(P < 0.05), while the E-Apu had no effect(P > 0.05).Furthermore, compared with the E-Apu group, the Apo group had a significantly lower Lequesne index(P < 0.05), and a significantly greater PROM(P <0.05).CONCLUSION: In a rabbit model of KOA, both Apo and E-Apu reduce disorders of ethology and morphology, and improve the condition of the articular cartilage. The results suggest that Apo is more effective than E-Apu in improving the PROM and alleviating symptoms resulting from cartilage damage in a rabbit model of KOA. | Zhang Wei Gao Yang Guo Changqing Ibrahim Zeyad Ali Khattab Farid Mokhtari | 2019 | Journal of Traditional Chinese Medicine2019，39，2： | 6 |
| 4 | Prognostic impact of molecular markers in a series of 220 primary glioblastomas显示文摘 | Houillier C Lejeune J Benouaic h-Amiel A Laigle-Donadey F Criniere E Mokhtari K Thillet J Delattre JY Hoang-Xuan K Sanson M | 2006 | 中国神经肿瘤杂志2006，4，1： | 5 |
| 5 | Effects of radiotherapy with concomitant and adjuvant temozolomide versus radiotherapy alone on survival in glioblastoma in a randomised phase III study: 5-year analysis of the EORTC-NCIC trial显示文摘 | Roger Stupp Monika E Hegi Warren P Mason Martin J van den Bent Martin JB Taphoorn Robert C Janzer Samuel K Ludwin Anouk Allgeier Barbara Fisher Karl Belanger Peter Hau Alba A Brandes Johanna Gijtenbeek Christine Marosi Charles J Vecht Karima Mokhtari Piet | 2009 | Lancet Oncology2009，，5： | 4 |
| 6 | Polyvinylpolypyrrolidone-bromine complex:Mild and efficient polymeric reagent for bromination of activated aromatic compounds显示文摘Mild and efficient method for bromination of electron-rich aromatic compounds is described using polyvinylpolypyrrolidone-bromine complex(PVPP-Br2).The reaction proceeded smoothly with phenols and N,N-alkylated amines to afford the corresponding monobrominated product in good yields at ambient temperature. | Masoud Mokhtary Moslem M.Lakouraj | 2011 | Chinese Chemical Letters2011，22，1： | 4 |
| 7 | Egg consumption and risk of non-alcoholic fatty liver disease显示文摘AIM To evaluate the association between egg consumption and risk of non-alcoholic fatty liver disease(NAFLD) development.METHODS This case-control study was conducted on individuals who were referred to two hepatology clinics in Tehran, Iran in 2015. The study included 169 patients with NAFLD and 782 controls. Egg consumption was estimated using a validated food frequency questionnaire. The participants were categorized according to the frequency of their egg consumption during the previous year: Less than two eggs per week, two to three eggs per week, and four or more eggs per week.RESULTS In the crude model, participants who consumed 2 to 3 eggs per week, were 3.56 times more likely to have NAFLD in comparison to those who consumed less than 2 eggs per week(OR: 3.56; 95%CI: 2.35-5.31). Adjustment for known risk factors of NAFLD strengthenedthis significant association so that individuals have consumed two to three eggs per week had 3.71 times higher risk of NAFLD than those who have eaten less than two eggs per week(OR: 3.71; 95%CI: 1.91, 7.75). CONCLUSION Our data indicate that higher egg consumption in common amount of usage is associated with higher risk of NAFLD. | Zeinab Mokhtari Hossein Poustchi Tannaz Eslamparast Azita Hekmatdoost | 2017 | World Journal of Hepatology2017，9，10： | 3 |
| 8 | 2,4,6-Trichloro-1,3,5-triazine/dimethylformamide as an efficient reagent for one-pot conversion of alcohols into N-alkylphthalimides显示文摘An efficient and mild method for the direct conversion of alcohols into N-alkylphthalimides using 2,4,6-trichloro-1,3,5-triazine and dimethylformamide was described.The reaction was preceded via(alcoxymethylene) dimethylammonium chloride intermediate and produced corresponding N-alkylphthalimides in good-to-excellent yields. | Babak Mokhtari Roya Azadi Aseieh Azhdari | 2010 | Chinese Chemical Letters2010，21，2： | 3 |
| 9 | Kinetic simulation of oxidative coupling of methane over perovskite catalyst by genetic algorithm:Mechanistic aspects显示文摘The reaction kinetics of oxidative coupling of methane catalyzed by perovskite was studied in a fixed bed flow reactor.At atmospheric pressure,the reactions were carried out at 725,750 and 775 ?C,inlet methane to oxygen ratios of 2 to 4.5 and gas hourly space velocity (GHSV) of 100 min?1.Correlation of the kinetic data has been performed with the proposed mechanisms.The selected equations have been regressed with experimental data accompanied by genetic algorithm (GA) in order to obtain optimized parameters.After investigation the Langmuir-Hinshelwood mechanism was selected as the best mechanism,and Arrhenius and adsorption parameters of this model were obtained by linear regression.In this research the Marquardt algorithm was also used and its results were compared with those of genetic algorithm.It should be noted that the Marquardt algorithm is sensitive to the selection of initial values and there is possibility to trap in a local minimum. | Nastaran Razmi Farooji Ali Vatani Shahrnaz Mokhtari | 2010 | Journal of Natural Gas Chemistry2010，19，4： | 3 |
| 10 | Separation of Salbutamol by Nano-baskets of Calix[4]arene Bearing Sulfonyl-carboxamides in Partial-cone Conformation显示文摘Salbutamol,which increases the muscle mass and decreases the adipose tissue,is misused as nutrient repartitioning agent in the livestock.The novelty of this work is the determination of salbutamol in the livestock meat via new bonded-phases bearing eight derivatives of p-tert-calix[4]arene in partial-cone conformation.The new synthesized bonded-phases were characterized and optimized.The bonding interactions of solute and stationary-phases were examined and the main interactions were reported.The salbutamol levels in six samples of livestock meat were analyzed and the results reveal that for the best bonded-phases,the limit of detection(LOD) and limit of quantitation(LOQ) were 0.02 and 0.06 μg/mL,respectively. | MOKHTARI Bahram POURABDOLLAH Kobra | 2012 | Chemical Research in Chinese Universities2012，28，6： | 3 |
| 11 | Differences in the metacognitive awareness of reading strategies among native and non-native readers显示文摘 | R. Sheorey K. Mokhtari | 2001 | System2001，，4： | 2 |
| 12 | 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 |
| 13 | Effects of Zizyphus jujube Extract on Memory and Learning Impairment Induced by Bilateral Electric Lesions of the Nucleus Basalis of Meynert in Rat显示文摘 | Zahra Rabiei Mahmoud Rafieian-kopaei Esfandiar Heidarian Elham Saghaei Shiva Mokhtari | 2014 | Neurochemical Research2014，，2： | 2 |
| 14 | ELECTROSPINNING OF CYCLODEXTRIN FUNCTIONALIZED CHITOSAN/PVA NANOFIBERS AS A DRUG DELIVERY SYSTEM显示文摘A new type of nanofibrous structure from chitosan bearing carboxymethyl--cyclodextrin(CS-g--CD) as a novel drug delivery system was synthesized by grafting carboxymethyl--cyclodextrin(CM-CD) onto chitosan(CS) in the presence of water soluble 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide(EDC) as the condensing agent and N-hydroxysuccinimide(NHS). Defect free mats containing CS-g--CD have been fabricated using electrospinning of an aqueous solution of poly(vinyl alcohol)(PVA)/CS-g--CD blends. The morphology and diameter of the electrospun nanofibers were examined by scanning electron microscopy(SEM). The average fiber diameter was in the range of 130 210 nm. SEM images showed that the morphology and diameter of the nanofibers were mainly affected by weight ratio of the blend at constant applied voltage. The results revealed that increasing CS-g--CD content in the blends decreases the average fiber diameter. It was observed that the PVA/CS-g--CD nanofibrous mat provided a slower release of the entrapped drug in compare to PVA/CS nanofibrous mat. | Maryam Bazhban Mahdi Nouri Javad Mokhtari | 2013 | Chinese Journal of Polymer Science2013，31，10： | 2 |
| 15 | Dissociation of polar oil components in low salinity water and its impact on crude oil-brine interfacial interactions and physical properties显示文摘Despite many efforts into the study of fluids interaction in low salinity water flooding, they are not probing the basics of transport phenomena between the involved phases. This work is aimed to bring new understanding of fluid-fluid interaction during low salinity water flooding through a series of organized experiments in which a crude oil sample with known properties was kept in contact with different brine solutions of various ionic strengths. Measuring brine pH, conductivity and crude oil viscosity and density for a period of 45 days illustrates the strong effect of the contact time and ionic strength on the dissociation of polar components and physical properties of the crude oil and brine. Besides, the interfacial tension(IFT) measurements show that the interfacial interactions are affected by several competitive interfacial processes. By decreasing the ionic strength of the brine, the solubility of naphthenic acids in the aqueous solution increases, and hence,the conductivity and the pH of the aqueous phase decrease. To verify this important finding, UV-Vis spectroscopy and 'H NMR analysis were also performed on aged brine samples. Notably, there is an ionic strength of brine in which the lowest IFT is observed, while the other physical properties are remained relatively unchanged. | Rasoul Mokhtari Shahab Ayatollahi | 2019 | Petroleum Science2019，16，2： | 2 |
| 16 | New Biobased Polyurethane Materials from Modified Vegetable Oil显示文摘Bio-based polyurethanes(PUs)have been occurred a large attention nowadays.It was found to be an alternative to the petrochemical based materials to the fact of their weak environmental influence,availability,good price and biodegradability.In addition,the nature shows several bio-derived compounds as raw materials for the synthesis of polyols,including the vegetable oils,polyphenol,terpene,and other bio-renewable sources.With the aim to develop a new family of biobased polyurethanes(PUs)via vegetable oils,the elaboration of new Jojoba-based PUs was performed by catalyst-free polycondensation reaction of a synthesized Jojoba diol with various diisocyanates such us toluene diisocyanate(TDI)and isophorone diisocyanate(IPDI).All the compounds were characterized by FTIR and NMR spectroscopies,and their properties were determined by gel permeation chromatography,differential scanning calorimetry and thermogravimetric analysis.The obtained results show renewable vegetable oils-based PUs materials can be preparing using a new environmentally ways and giving various good properties performances. | Chakib Mokhtari Fouad Malek Sami Halila Mohamed Naceur Belgacem Ramzi Khiari | 2021 | Journal of Renewable Materials2021，9，7： | 2 |
| 17 | Comparative study of kinetic modeling for the oxidative coupling of methane by genetic and marquardt algorithms显示文摘Overall kinetic studies on the oxidative coupling of methane,OCM,have been conducted in a tubular fixed bed reactor,using perovskite titanate as the reaction catalyst.The appropriate operating conditions were found to be:temperature 750-775 ℃,total feed flow rate of 160 ml/min,CH4 /O2 ratio of 2 and GHSV of 100·min-1 .Under these conditions,C 2 yield of 28% was achieved.Correlations of the kinetic data have been performed with lumped rate equations for C2 and COx formation as functions of temperature,O2 and CH4 partial pressures.Six models have been selected among the common lumped kinetic models.The selected models have been regressed with the experimental data which were obtained from the Catatest system by genetic algorithm in order to obtain optimized parameters.The kinetic coefficients in the overall reactions were optimized by different numerical optimization methods such as:the Levenberg-Marquardt and genetic algorithms and the results were compared with one another.It has been found that the Santamaria model is in good agreement with the experimental data.The Arrhenius parameters of this model have been obtained by linear regression.It should be noted that the Marquardt algorithm is sensitive to the first guesses and there is possibility to trap in the relative minimum. | Shahrnaz Mokhtari Ali Vatani Nastaran Razmi Farooji | 2010 | Journal of Natural Gas Chemistry2010，19，3： | 2 |
| 18 | Time-cost tradeoff analysis in project management: An ant system approach 显示文摘 | Mokhtari H Baradaran Kazemzadeh R Salmasnia A | 2011 | Engineering Management IEEE Transactions on2011，58，1： | 1 |
| 19 | Decision support frame-work for risk management on sea ports and terminals using fuzzy set theory and eviden-tial reasoning approach显示文摘 | Kambiz Mokhtari Ju n Ren Charles Roberts Jin Wang | | 0，，： | 1 |
| 20 | Selfaligning gas/liquid micropump显示文摘 | Schabmueller C G J Koch M Mokhtari M E | 2002 | J Micromech Microeng2002，12，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员