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| 1 | 胶质气体泡沫基泡沫水泥体系显示文摘为了解决常规泡沫水泥存在的密度高、泡沫不稳定、抗压强度低、孔隙度高、有效期短等缺点,研发了一种新型的胶质气体泡沫(CGA)基泡沫水泥体系并进行性能评价。将CGA作为泡沫组分加入基浆,从优化粒度分布的角度考虑加入空心球和微硅石继续优化配方。通过孔隙度、渗透率、强度、脆性、弹性、自由水含量、泡沫稳定性和密度测试等评价CGA基泡沫水泥体系性能,实验结果表明:泡沫占比为10%时,水泥密度降到1040 kg/m3;水泥体系中形成了稳定的微泡网络结构且不受高温高压影响;最优CGA基泡沫水泥自由水含量为零,孔隙度为24%,渗透率为0.7×103μm^2,弹性模量低、泊松比高,抗压强度合理,表现出韧性特征,具有更强的弹性和柔性,可承受区域地应力。 | VELAYATI Arian ROOSTAEI Morteza RASOOLIMANESH Rasool SOLEYMANI Mohammad FATTAHPOUR Vahidoddin | 2019 | 石油勘探与开发2019，46，6： | 3 |
| 2 | Insight into selection of appropriate formulation for colloidal gas aphron(CGA)-based drilling fluids显示文摘Application of light-weight drilling fluids is essential to develop depleted hydrocarbon reservoirs.Recently,colloidal gas aphron(CGA)-based fluids have been introduced for such applications due to their ability in controlling fluid losses.In this work,a comprehensive experimental study was performed to choose the best formulation for CGA fluids by implementing static stability tests,rheological behavior measurements,and bubble size analyses of CGAs.Xanthan gum polymer and sodium dodecyl benzene sulfonate(SDBS),an anionic surfactant,and cetyl trimethyl ammonium bromide(CTAB),a cationic surfactant,were utilized to prepare CGAs.For the range of experiments conducted,the performance of CGA fluids prepared with SDBS was improved by increasing the polymer and surfactant concentrations.However,for CTAB,it was improved by an increase in the polymer concentration and a decrease in the surfactant concentration.The formation of white,long hair-like precipitates observed at high levels of CTAB caused CGA fluid to become rapidly unstable.Also,it was observed that the size of CGAs was significantly influenced by the polymer and surfactant concentrations.The most stable bubbles were formed at 6.86 g/L of polymer concentration.The results of this study provide insights into appropriate formulation for CGA-based fluids which could be potentially applicable in drilling operations. | Mohsen Pasdar Ezatallah Kazemzadeh Ehsan Kamari Mohammad Hossein Ghazanfari Mohammad Soleymani | 2020 | Petroleum Science2020，17，3： | 2 |
| 3 | Regulations and ethical codes for clinical cell therapy trials in Iran显示文摘Objective: The local regulations for conducting experimental and clinical cell therapy studies are dependent on the national and cultural approach to the issue, and may have many common aspects as well as differences with the regulations in other countries.The study reflects the latest national aspects of cell therapy in Iran and relevant regulations. Methods: The following topics are discussed in the article including sources of cell harvest, regulations for cell disposal, stem cell manufacturing, and economic aspects of stem cell, based on current practice in Iran. Results: All cell therapy trials in Iran are required to strictly abide with the ethical codes, national and local regulations, and safety requirements, as well as considering human rights and respect. Adherence to these standards has facilitated the conduct of human cell therapy trials for research, academic advancement, and therapy. Conclusions: The cell therapy trials based on the aforementioned regulations may be assumed to be ethical and they are candidates for clinical translations based on safety and efficacy issues. | Hooshang Saberi Nazi Derakhshanrad Babak Arjmand Jafar Ai Masoud Soleymani Amir Ali Hamidieh Mohammad Taghi Joghataei Zahid Hussain Khan Seyed Hassan Emami Razavi | 2015 | Translational Neuroscience and Clinics2015，1，2： | 0 |
| 4 | Real-Time and Intelligent Flood Forecasting Using UAV-Assisted Wireless Sensor Network显示文摘The Wireless Sensor Network(WSN)is a promising technology that could be used to monitor rivers’water levels for early warning flood detection in the 5G context.However,during a flood,sensor nodes may be washed up or become faulty,which seriously affects network connectivity.To address this issue,Unmanned Aerial Vehicles(UAVs)could be integrated with WSN as routers or data mules to provide reliable data collection and flood prediction.In light of this,we propose a fault-tolerant multi-level framework comprised of a WSN and a UAV to monitor river levels.The framework is capable to provide seamless data collection by handling the disconnections caused by the failed nodes during a flood.Besides,an algorithm hybridized with Group Method Data Handling(GMDH)and Particle Swarm Optimization(PSO)is proposed to predict forthcoming floods in an intelligent collaborative environment.The proposed water-level prediction model is trained based on the real dataset obtained fromthe Selangor River inMalaysia.The performance of the work in comparison with other models has been also evaluated and numerical results based on different metrics such as coefficient of determination(R2),correlation coefficient(R),RootMean Square Error(RMSE),Mean Absolute Percentage Error(MAPE),and BIAS are provided. | Shidrokh Goudarzi Seyed Ahmad Soleymani Mohammad Hossein Anisi Domenico Ciuonzo Nazri Kama Salwani Abdullah Mohammad Abdollahi Azgomi Zenon Chaczko Azri Azmi | 2022 | Computers, Materials & Continua2022，，1： | 0 |
| 5 | Computational evaluation concerning the deviation of the atoms in 1-and 4-postions on the six-member ring and the effects on ^(1)HNMR chemical shift显示文摘Density functional theory(DFT)calculations were carried out on some cyclohexane derivatives to investigate the deviation atoms on the 1-and 4-positions of chair plane.The deviations of chair plane of two position in the cyclohexane derivatives were calculated at the B3LYP/6–31++G(d,p)level.Furthermore,we investigated the correlation between deviations of two positions from chair plane on the chemical shift hydrogen atoms on the 4-position. | Asadollah FARHADI Mohammad Ali TAKASSI Hamid Reza MEMARIAN Mousa SOLEYMANI | 2011 | Frontiers of Chemistry in China2011，6，2： | 0 |
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