|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A Closer Look at the Design of Cutterheads for Hard Rock Tunnel-Boring Machines显示文摘在隧道项目中,隧道掘进机(TBM)能否顺利施工取决于TBM系统所有部件(从刀具到后备系统)能否正常运转,并取决于全部机车车辆的配合。而在整个TBM系统中,刀盘是影响TBM施工效率最为关键的因素。刀盘的设计影响到掘削效率、刀盘平衡、刀具使用寿命、主轴承/齿轮箱维护、出渣效果、面刀和边刀/排渣铲斗的磨损情况。总体来说,刀盘设计对掘进速度(ROP)、机器利用率(U)及每日进尺(AR)有重要影响。尽管当前可用文献中已就盘形滚刀、切削力、刀盘的某些设计特征做了讨论,但与本论题相关的文献却十分有限,这是因为刀盘的设计主要由隧道掘进机制造商负责,大部分设计工艺都属制造商专有,虽然本论题当前大受关注,但岩石隧道掘进机的设计对终端客户而言仍是个谜题。本文将试着阐明设计中的基本概念,虽不足以帮助读者进行成熟设计,却可助工程师与承包商理解设计步骤中的构思过程、合理设计中应注意的事项以及刀盘设计对于隧道掘进机运行及寿命周期的意义。 | Jamal Rostami Soo-Ho Chang | 2017 | Engineering2017，3，6： | 12 |
| 2 | Examining the effect of adverse geological conditions on jamming of a single shielded TBM in Uluabat tunnel using numerical modeling显示文摘Severe shield jamming events have been reported during excavation of Uluabat tunnel through adverse geological conditions, which resulted in several stoppages at advancing a single shielded tunnel boring machine(TBM). To study the jamming mechanism, three-dimensional(3D) simulation of the machine and surrounding ground was implemented using the finite difference code FLAC3D. Numerical analyses were performed for three sections along the tunnel with a higher risk for entrapment due to the combination of overburden and geological conditions. The computational results including longitudinal displacement contours and ground pressure profiles around the shield allow a better understanding of ground behavior within the excavation. Furthermore, they allow realistically assessing the impact of adverse geological conditions on shield jamming. The calculated thrust forces, which are required to move the machine forward, are in good agreement with field observations and measurements. It also proves that the numerical analysis can effectively be used for evaluating the effect of adverse geological environment on TBM entrapments and can be applied to prediction of loads on the shield and preestimating of the required thrust force during excavation through adverse ground conditions. | Rohola Hasanpour Jürgen Schmitt Yilmaz Ozcelik Jamal Rostami | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，6： | 8 |
| 3 | Supported N-propylsulfamic acid on magnetic nanoparticles used as recoverable and recyclable catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones in water显示文摘An efficient and eco-friendly method is reported for the synthesis of 2-substituted-2,3-dihydroquinazolin -4(1 H)-ones from direct cyclocondensation of anthranilamide with aldehydes and ketones using N-propylsulfamic acid supported onto magnetic Fe_3O_4 nanoparticles(MNPs-PSA) as a recoverable and recyclable nanocatalyst in good to excellent yields in water at 70℃.The catalyst was readily separated using an external magnet and reusable without significant loss of their catalytic efficiency. | Amin Rostami Bahman Tahmasbi Hoshyar Gholami Hajir Taymorian | 2013 | Chinese Chemical Letters2013，24，3： | 7 |
| 4 | Progress in the development of vaccines for hepatitis C virus infection显示文摘The hepatitis C virus(HCV), first described in 1989, is now a leading cause of liver cirrhosis and hepatocellular carcinoma. With more than 170 million people infected globally, this virus is a major public health issue. The current standard therapy is based on interferon in combination with ribavirin. This costly therapy often fails to completely clear the infection and is associated with adverse side effects. Recent anti-HCV therapies are interferon-free direct-acting antiviral(DAA) regimens for HCV, including simeprevir, sofosbuvir, and ledipasvir, which have effects on non-structural proteins. DAA regimens have several advantages, such as specifically targeting HCV viral replication, accompanied by very high sustained virological response rates and lower side effects like flu-like syndrome. These facts plus the fact that most HCV cases progress to chronic infection suggest the potential need for an efficient HCV vaccine. Different innovative methods, including methods based on peptide, recombinant protein, DNA, vector-based, and virus-like particles, have been introduced for the development of HCV vaccines. An extensive number of studies have been published on these vaccines, and some vaccines were even tested in clinical trials. In the current review, progress in the development of preventive and therapeutic vaccines against the HCV is reviewed in the context of peptide vaccines, recombinant protein vaccines, HCV-like particle, DNA vaccines and viral vectors expressing HCV genes. | Faezeh Ghasemi Sina Rostami Zahra Meshkat | 2015 | World Journal of Gastroenterology2015，21，42： | 6 |
| 5 | Prediction of flyrock distance induced by mine blasting using a novel Harris Hawks optimization-based multi-layer perceptron neural network显示文摘In mining or construction projects,for exploitation of hard rock with high strength properties,blasting is frequently applied to breaking or moving them using high explosive energy.However,use of explosives may lead to the flyrock phenomenon.Flyrock can damage structures or nearby equipment in the surrounding areas and inflict harm to humans,especially workers in the working sites.Thus,prediction of flyrock is of high importance.In this investigation,examination and estimation/forecast of flyrock distance induced by blasting through the application of five artificial intelligent algorithms were carried out.One hundred and fifty-two blasting events in three open-pit granite mines in Johor,Malaysia,were monitored to collect field data.The collected data include blasting parameters and rock mass properties.Site-specific weathering index(WI),geological strength index(GSI) and rock quality designation(RQD)are rock mass properties.Multi-layer perceptron(MLP),random forest(RF),support vector machine(SVM),and hybrid models including Harris Hawks optimization-based MLP(known as HHO-MLP) and whale optimization algorithm-based MLP(known as WOA-MLP) were developed.The performance of various models was assessed through various performance indices,including a10-index,coefficient of determination(R^(2)),root mean squared error(RMSE),mean absolute percentage error(MAPE),variance accounted for(VAF),and root squared error(RSE).The a10-index values for MLP,RF,SVM,HHO-MLP and WOA-MLP are 0.953,0.933,0.937,0.991 and 0.972,respectively.R^(2) of HHO-MLP is 0.998,which achieved the best performance among all five machine learning(ML) models. | Bhatawdekar Ramesh Murlidhar Hoang Nguyen Jamal Rostami XuanNam Bui Danial Jahed Armaghani Prashanth Ragam Edy Tonnizam Mohamad | 2021 | Journal of Rock Mechanics and Geotechnical Engineering2021，13，6： | 6 |
| 6 | Accumulation of heavy metal in Platanus orientalis, Robinia pseudoacacia and Fraxinus rotundifolia显示文摘Plants are capable of reducing environmental pollutions through uptaking contaminants in their tissues. In the study site, twenty one-year-old leaves and shoots as well as twenty soil samples were sampled and analyzed by Inductively Coupled Plasma (ICP). We investigated the uptaking ability of lead (Pb) and cadmium (Cd) by the leaves and shoots of Platanus orientalis, Robinia pseudoacacia and Fraxinus rotundifolia in Karaj city, the western Tehran, Iran. We also evaluated the total metal accumulation capacity by using metal accumulation index (MAI). Results indicated that there was no significant difference in uptaking contents of Cd and Pb in the leaves among the trees. However accumulation of Cd in shoots of F. rotundifolia and R. pseudoacacia was significantly higher than that of P. orientalis. The accumulation of Pb in shoots of R. pseudoacacia was significantly higher than the other species. The amount of Pb in the soil of the study area was significantly higher than Cd. Concentrations of Cd and Pb in leaves of the three species are in the ranges of 2.4 2.7 mg Kg-1 and 7.1 14.4 mg Kg-1 , respectively. R. pseudoacacia had the highest MAI value for leaves (2.21) and F. rotundifolia had the highest MAI value for shoots (2.4). | Sajjad Hosseinzadeh Monfared Mohammad Matinizadeh Anoushirvan Shirvany Ghavamedin Zahedi Amiri Reza Mousavi Fard Fariba Rostami | 2013 | Journal of Forestry Research2013，24，2： | 5 |
| 7 | Effect of water salinity on oil/brine interfacial behaviour during low salinity waterflooding: A mechanistic study显示文摘In recent years,controlling the salinity and composition of the injected water has become an emerging enhanced oil recovery(EOR)technique,often described as low salinity(LS)waterflooding.This work is done with the intention to contribute to the ongoing discussions about LS waterflooding mechanism(s).For this purpose,a series of different experiments were conducted.At first,the effect of salinity on the interfacial tension(IFT)and the contact angle was evaluated with a crude oil sample.Then to achieve more accurate results in observing oil/water interface,similar IFT experiments were also carried out on a synthetic oil containing asphaltenes.Thereafter,microscopic visualization using glass micromodel was performed on the interface of the synthetic oil sample and brines.Four brine solutions including Sea Water(SW),it's dilutions and formation water(FW)were used for various experiments.Finally,to investigate the presented mechanism by other authors,a series of Environmental Scanning Electron Microscopy(ESEM)analysis on the synthetic oil was carried out to understand better the phase behaviour after contacting both synthetic oil and water phases from the micromodel experiment.Based on the existing mechanism,there exists an optimal concentration beyond which dilution is no longer an effective process. | Peyman Rostami Mohammad Fattahi Mehraban Mohammad Sharifi Morteza Dejam Shahab Ayatollahi | 2019 | Petroleum2019，5，4： | 5 |
| 8 | Sulfamic acid as a reusable and green catalyst for efficient and simple synthesis of 2-substituted-2,3-dihydroquinazolin-4(1H)-ones in water or methanol显示文摘A series of 2,3-dihydroquinazolin-4(1H)-ones have been synthesized in good to excellent yields through direct cyclocondensation of anthranilamide and aryl aldehydes or ketones in water or methanol under mild conditions.The reaction was efficiently promoted by 10 mol%sulfamic acid(SA,H2NSO3H) and the catalyst could be recovered easily after the reactions and reused without evident loss of reactivity. | Amin Rostami Ashkan Tavakoli | 2011 | Chinese Chemical Letters2011，22，11： | 4 |
| 9 | p-Toluenesulfonyl chloride as a new and effective catalyst for acetylation and formylation of hydroxyl compounds under mild conditions显示文摘为有处于没有溶剂的条件的醋性的酐的白酒和酚的各种各样的类型的有效 acetylation 的 p-toluenesulfonyl 氯化物的催化申请被报导。另外在结构上多样的白酒基于在没有溶剂的状况下面的 p-toluenesulfonyl 氯化物的催化数量的使用是用蚁的酸的 formylated。反应在短反应时间并且在被执行对在房间温度的优秀收益好。 | Ardeshir Khazaei Amin Rostami Fatemeh Mantashlo | 2010 | Chinese Chemical Letters2010，21，12： | 4 |
| 10 | Disc cutting tests in Colorado Red Granite: Implications for TBM performance prediction显示文摘 | R. Gertsch L. Gertsch J. Rostami | 2006 | International Journal of Rock Mechanics and Mining Sciences2006，，2： | 4 |
| 11 | Rock characterization while drilling and application of roof bolter drilling data for evaluation of ground conditions显示文摘Despite recent advances in mine health and safety, roof collapse and instabilities are still the leading causes of injury and fatality in underground mining operations. Improving safety and optimum design of ground support requires good and reliable ground characterization. While many geophysical methods have been developed for ground characterizations, their accuracy is insufficient for customized ground support design of underground workings. The actual measurements on the samples of the roof and wall strata from the exploration boring are reliable but the related holes are far apart, thus unsuitable for design purposes. The best source of information could be the geological back mapping of the roof and walls, but this is disruptive to mining operations, and provided information is only from rock surface.Interpretation of the data obtained from roof bolt drilling can offer a good and reliable source of information that can be used for ground characterization and ground support design and evaluations. This paper offers a brief review of the mine roof characterization methods, followed by introduction and discussion of the roof characterization methods by instrumented roof bolters. A brief overview of the results of the preliminary study and initial testing on an instrumented drill and summary of the suggested improvements are also discussed. | Jamal Rostami Sair Kahraman Ali Naeimipour Craig Collins | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，3： | 4 |
| 12 | 真三轴卸载–动力扰动下自然与饱水砂岩破坏特性试验研究显示文摘为探讨不同含水状态红砂岩试样在动静组合状态下的失稳破裂特征,采用QKX-YB200真三轴岩爆试验系统、声发射监测系统以及高速摄像仪对自然和饱水状态下的红砂岩立方体试样开展真三轴卸载–动力扰动试验。研究结果表明:在真三轴卸载–动力扰动条件下,自然状态砂岩破坏模式为张拉–剪切混合型破坏,而饱水状态砂岩的破坏模式为张拉型破坏,不同含水状态砂岩的裂纹扩展程度与初始轴向静应力和动力扰动频率密切相关;相比于饱水状态砂岩,自然状态砂岩试样在动力扰动阶段出现了不同程度的块片弹射和飞溅现象,体现为典型的应变型岩爆特征;轴向静应力以及动力扰动频率对于不同含水状态砂岩的力学响应特征具有显著的差异性,其对于自然状态砂岩的力学响应主要体现为岩样的破坏剧烈程度,而对于饱水状态砂岩的力学响应则主要体现为岩样的破碎程度;对含水砂岩试样建立了真三轴卸载–动力扰动下裂纹扩展模型,认为水楔效应、中间主应力效应以及开挖卸荷效应是诱发饱水砂岩产生张拉型破坏的本质原因;基于室内试验结果,从能量转化、力学、物理以及化学的角度初步揭示了真三轴卸载–动力扰动下水弱化岩爆机制。 | 冯帆 陈绍杰 王琦 ROSTAMI J KHORESHOK A A 盛守前 卞壮 丁屹松 | 2022 | 岩石力学与工程学报2022，41，11： | 4 |
| 13 | The effect of nanoparticles on wettability alteration for enhanced oil recovery: micromodel experimental studies and CFD simulation显示文摘The applications of nanotechnology in oilfields have attracted the attention of researchers to nanofluid injection as a novel approach for enhanced oil recovery. To better understand the prevailing mechanisms in such new displacement scenarios,micromodel experiments provide powerful tools to visually observe the way that nanoparticles may mobilize the trapped oil.In this work, the e ect of silicon oxide nanoparticles on the alteration of wettability of glass micromodels was investigated in both experimental and numerical simulation approaches. The displacement experiments were performed on the original water-wet and imposed oil-wet(after aging in stearic acid/n-heptane solution) glass micromodels. The results of injection of nanofluids into the oil-saturated micromodels were then compared with those of the water injection scenarios. The flooding scenarios in the micromodels were also simulated numerically with the computational fluid dynamics(CFD) method. A good agreement between the experimental and simulation results was observed. An increase of 9% and 13% in the oil recovery was obtained by nanofluid flooding in experimental tests and CFD calculations, respectively. | Peyman Rostami Mohammad Shari Babak Aminshahidy Jalal Fahimpour | 2019 | Petroleum Science2019，16，4： | 4 |
| 14 | Sulfamic acid:An efficient,cost-effective and green catalyst for crossed-aldol condensation of ketones with aromatic aldehydes under solvent-free显示文摘芳香的醛面对 sulfamic 酸(SA ) 的催化数量与酉同类经历生气丁间醇醛的冷凝作用在没有溶剂的条件下面负担得起相应、不饱和的丁间醇醛产品在对在 4580 点的高收益好 ? | Amin Rostami Firoz Ahmad-Jangi | 2011 | Chinese Chemical Letters2011，22，9： | 3 |
| 15 | Effect of Gd3+-,Pr3+-or Sm3+-substituted cobalt-zinc ferrite on photodegradation of methyl orange and cytotoxicity tests显示文摘Gd3+-,Pr3+-or Sm3+-doped Co-Zn(Co0.5Zn0.5Fe2 O4)magnetic ferrites(i.e.,Co0.5Zn0.5Gd0.1Fe1.9O4,Co0.5Zn0.5Pr0.1Fe1.9O4 and Co0.5Zn0.5Sm0.1Fe1.9O4)were prepared using a facile sol-gel approach,and the structure,surface morphology and chemical composition of the products were studied by means of scanning electron microscopy(SEM),energy dispersive X-ray analysis(EDX),X-ray diffraction(XRD),UVvisible diffuse reflectance spectroscopy(DRS),photoluminescence(PL)spectroscopy,Fourier transform infrared spectroscopy(FT-IR)and vibrating sample magnetometer(VSM)spectroscopy.XRD patterns show the Co-Zn product is composed of cubic spinel phases with few impurities or secondary phases,and the average crystallite sizes of the samples are determined to be approximately^51—80,~99—181,~68—103 and^83—133 nm.Also the coercivity and remnant and saturation magnetizations,evaluated by vibrating sample magnetometer(VSM),are found to increase linearly with the incorporation of Gd3+,Pr3+and Sm3+in the product formulation.The CO1-xZnxFe2-yRyO4 photocatalyst sample is found to display a red shift in its absorption,and exhibits outstanding photocatalytic effects in the degradation of MO under ultraviolet(UV)light.This is attributed to the reduction of the band gap of cobalt-zinc ferrite due to the presence of rare earth ions.Further in vitro evaluations of the cytotoxic effects of the synthesized nanoparticles were performed on a HeLa cell line. | Seyed Mahdi Peymani-Motlagh Nadia Moeinian Mojtaba Rostami Mahdi Fasihi-Ramandi Ali Sobhani-Nasab Mehdi Rahimi-Nasrabadi Mohammad Eghbali-Arani Mohammad Reza Ganjali Teofil Jesionowski Hermann Ehrlich Mohammad Ali Karimi Narges Ajami | 2019 | Journal of Rare Earths2019，37，12： | 3 |
| 16 | Performance prediction of hard rock TBM using Rock Mass Rating (RMR) system显示文摘 | Jafar Khademi Hamidi Kourosh Shahriar Bahram Rezai Jamal Rostami | 2010 | Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2010，，4： | 3 |
| 17 | Performance prediction of hard rock TBM using Rock Mass Rating (RMR) system显示文摘 | Jafar Khademi Hamidi Kourosh Shahriar Bahram Rezai Jamal Rostami | 2010 | Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2010，，4： | 2 |
| 18 | Ground characterization and roof mapping: Online sensor signal-based change detection显示文摘Measurement while drilling systems are becoming an important part of excavation operations for rock characterization and ground support design that require reliable information on rock strength and location & frequency of joints or voids. This paper focuses on improving rock characterization algorithms for instrumented roof-bolter systems. For this purpose, an improved void detection algorithm is proposed,where the underlying theory is built upon the concept of mean change detection based on the feed pressure signals. In addition, the application of acoustic sensing for void detection is examined and it is shown that the variance of the filtered acoustic signal is correlated to the strength of the material being drilled. The proposed algorithm has been validated on the data collected from full-scale drilling tests in various concrete and rock samples at the J. H. Fletcher facility. | Bahrampour Soheil Rostami Jamal Ray Asok Naeimipour Ali Collins Craig | 2015 | International Journal of Mining Science and Technology2015，25，6： | 2 |
| 19 | 中枢神经系统炎性脱髓鞘损伤髓鞘再生的细胞学治疗显示文摘多发性硬化(MS)损伤的病理特征是髓鞘脱失。髓鞘再生近年来被认为是自身免疫性脱髓鞘疾病,尤其是MS治疗中非常有前景的方向。髓鞘再生治疗可分为内源性和外源性,所以大量的临床和实验研究都集中于通过外源性移植细胞或通过促进内源性再生机制来获得中枢神经系统脱髓鞘区域的髓鞘再生,并均取得一定的成功。本文对近年来MS髓鞘再生的细胞学治疗的现状和神经科学背景及再生髓鞘治疗的将来可能发展方向进行了评述。 | 管阳太 张广先 Abdolmohamad Rostami | 2005 | 神经科学通报2005，21，5： | 2 |
| 20 | Gene-diet interaction of FTO-rs9939609 gene variant and hypocaloric diet on glycemic control in overweight and obese adults: a systematic review and meta-analysis of clinical trials显示文摘Background:The hypocaloric diets improve glycemic status in obese individuals,but the response to hypocaloric diets in fat mass and obesity-associated gene(FTO)-rs9939609 gene variant is unknown.This systematic review and meta-analysis aimed to assess the gene-diet interaction of FTO-rs9939609 gene variant and hypocaloric diets on glycemic control in overweight and obese adults.Methods:Cochrane Central Register of Controlled Trials,PubMed,ISI Web of Science,Embase,Scopus,and Google scholar were searched up to December 2018,for relevant clinical trials.Mean changes in fasting blood sugar(FBS),serum insulin,and homeostasis model assessment of insulin resistance(HOMA-IR)were extracted.Results:The pooled analysis of nine studies showed that there was no significant difference between AA/AT and TT genotypes in FBS(weighted mean difference[WMD]=0.01,95%confidence interval[CI]:-1.08,1.10,P=0.984)and serum insulin(WMD=0.20,95%CI:-0.85,1.26;P=0.707)after intervention hypocaloric diets.The overweight/obese participants in AA/AT group showed the greatest reduction in HOMA-IR compared with TT genotype following intervention,and this difference was not statistically significant(WMD=-0.38,95%CI:-0.94,0.16,P=0.167).Conclusion:This meta-analysis suggests that there was no significant difference between AA/AT and TT genotypes of FTO-rs9939609 on FBS,serum insulin level,and insulin resistance in response to hypocaloric diets. | Karim Parastouei Hosein Rostami Amirhossein Ahmadi Ramezani Hamidreza Tavakoli Meysam Alipour | 2020 | Chinese Medical Journal2020，，3： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员