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Effect of Low Level Subchronic microwave radiation on Rat Brain

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Biomedical and Environmental Sciences 2016年第12期29卷 858-867页

作者： Pravin Suryakantrao Deshmukh Kanu Megha Namita Nasare Basu Dev Banerjee Rafat Sultana Ahmed Mahesh Pandurang Abegaonkar Ashok Kumar Tripathi Pramod Kumari Mediratta Environmental Biochemistry and Molecular Biology Laboratory Department of Biochemistry.University College of Medical Sciences & G.T.B.Hospital(University of Delhi) Department of Pharmacology University College of Medical Sciences & G.T.B.Hospital(University of Delhi) Centre for Applied Research in Electronics(CARE) Indian Institute of Technology

Objective The present study was designed to investigate the effects of subchronic low level microwave radiation （MWR） on cognitive function, heat shock protein 70 （HSP70） level and DNA damage in brain of Fischer rats. Methods Experiments were performed on male Fischer rats exposed to microwave radiation for 90 days at three different frequencies： 900, 2800, and 2450 MHz. Animals were divided into 4 groups： Group I： Sham exposed, Group I1： animals exposed to microwave radiation at 900 MHz and specific absorption rate （SAR） 5.953 x 10-4 W/kg, Group II1： animals exposed to 1800 MHz at SAR 5.835 x 20-4 W/kg and Group IV： animals exposed to 2450 MHz at SAR 6.672 x 10-4 W/kg. All the animals were tested for cognitive function using elevated plus maze and Morris water maze at the end of the exposure period and subsequently sacrificed to collect brain tissues. HSP70 levels were estimated by ELISA and DNA damage was assessed using alkaline comet assay. Results microwave exposure at 900-2450 MHz with SAR values as mentioned above lead to decline in cognitive function, increase in HSP70 level and DNA damage in brain. Conclusion The results of the present study suggest that low level microwave exposure at frequencies 900, 2800, and 2450 MHz may lead to hazardous effects on brain.

关键词： Brain Cognitive function Comet assay DNA damage HSP70 microwave radiation

Nanoparticles assisted microwave radiation:Fluid-rock interactions in oil reservoirs

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Petroleum Science 2021年第6期18卷 1797-1812页

作者： Hamzeh Shamsi Armandi Arezou Jafari Reza Gharibshahi Faculty of Chemical Engineering Tarbiat Modares UniversityTehranIran

Recently,many researchers have focused on the usage of electromagnetic waves in oil production and well stimulation,but so far the effect of these waves on the fluid and rock interaction and its simultaneous effect with nanoparticles have not been ***-rock interaction is one of the most important factors affecting fluid distribution in the *** this study,the oil reservoir rock wettability alteration under electromagnetic heating and the presence of nanoparticles has been *** nanoparticles of TiO_2,Fe_(3)O_(4),and TiO_2/Fe_(3)O_(4)have been ***_2 nanoparticles are commercially available,and the other mentioned nanoparticles are synthesized via a co-precipitation *** acid has been used to modify surfaces of nanoparticles and stabilize them in water as the base ***,the adsorption of the nanoparticles on the rock surface has been *** the next step,the amount of oil outflow from the rock has been measured and reported as the external fluid *** this process,the nanoparticle performance in wettability alteration was investigated using pH and inductively coupled plasma(ICP)*** better understand the governing mechanisms,oil viscosity was measured by mixing the oil with nanoparticles and put under *** results reveal that the microwave has a great ability to reduce oil contact angle with carbonate *** the presence of0.2 wt%Fe_(3)O_(4)nanoparticles,the contact angle was reduced from 155°to 19°after 28 min of irradiation,indicating strong rock ***,microwave irradiation on Fe_(3)O_(4)nanofluid extracts75%of the oil from the *** microwave radiation,the pH of the nanofluid increases and hence,more nanoparticles are adsorbed on the rock which subsequently causes more rock *** viscosity change results prove that there is an optimal irradiation time of 5 min in which oil viscosity reduces from 481 cP to 410 cP and then increases to 827

关键词： microwave radiation Wettability alteration Nanoparticle adsorption Rock-fluid interaction

Two-step method to extract seismic microwave radiation anomaly:Case study of M_s8.0 Wenchuan earthquake

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Earthquake Science 2011年第6期24卷 577-582页

作者： Yuntao Ma Shanjun Liu Lixin Wu Zhongyin Xu College of Resources and Civil Engineering Northeastern University Shenyang 110004 China School of Civil Engineering Shenyang Jianzhu University Shenyang 110004 China Academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs Ministry of Education （Beijing Normal University） Beijing 100875 China

The satellite remote sensing has become a promising technique for detecting earthquake and fault activities. But it is still very difficult to exactly extract the earthquake anomaly from the complicated remote sensing information. This paper presented a two-step method to extract the seismic microwave radiation anomaly related with earthquake, which could eliminate the stable influence of geography, terrain, coversphere and seasons, as well as the random influence of weather. Furthermore the two-step method was applied to analyze the anomaly of Wenchuan earthquake based on the data of AMSR-E. microwave radiation anomalies were effectively detected related to the main shock and aftershocks. The extracted microwave radiation variation showed general features of three-stage： the positive radiation anomaly appeared around the epicenter in the first stage, quiet variation in the second stage, and abnormal area gradually moved to the epicenter in the third stage. After the main shock the microwave radiation anomalies distributed along the Longmenshan faults, and the epicenters of aftershocks were coincident with the anomaly area in space.

关键词： Wenchuan earthquake AMSR-E microwave radiation brightness temperature anomalyextraction

Kinetics of Oxidative Dearsenication of Niccolite Ore with microwave radiation

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Journal of Materials Science & Technology 1992年第2期8卷 115-118页

作者：陶东平刘纯鹏 Dept.of Metallurgy Kunming Institute of TechnologyKunming650093China Dept.of Metallurgy Kunming Institute of TechnologyKunming650093ChinaTo whom correspondence should be addressed

The rate processes of oxidative dearsenication of niccolite ore in microwave oven and in conventional furnace were measured with thermogravimetric *** results show that the dearsenication rate of niccolite ore with microwave heating becomes faster than that with conventional heating. Under the conditions of an approximate linear heating and a definite air flow,the oxidative dearsenication process of niccolite ore is mainly controlled by interfacial chemical *** ex- perimental data are in agreement with the kinetic model of linear heating as follows: In{[1-(1-α)^(1/3)]/T}= In (PAM)/(r_oρφE)(1-(RT)/E)-E/(RT) Thus the apparent activation energies of oxidative dearsenication of the niccolite ore containing differ- ent additions have been obtained from the model.

关键词： kinetics dearsenication niccolite ore microwave radiation

Application of microwave radiation to Extractive Metallurgy

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Journal of Materials Science & Technology 1990年第2期6卷 121-124页

作者：刘纯鹏徐有生华一新 Kunming Institute of Technology Kunming650093China

In applying the microwave radiation to extractive me- tallurgy,it is essential first of all to find the extent of microwave energy absorbed by various minerals experi- *** this paper,more than 25 kinds of common useful minerals have been individually irradiated by a 500 W,2450 MHz microwave source in an enclosed quartz crucible to ascertain their heating temperature in a definite *** addition,the reduction and cbloridization tests were also carried out on the titanomagnetite concentrate and pentlandite with microwave heating,respectively. These experiments indicate potential applications of util- izing microwave energy in extractive metallurgy.

关键词： microwave radiation extractive metallurgy titanomagnetite pentlandite

Synthesis and Investigation of the Activity of Cu-Cr-Co/Al₂O₃/Al-Catalysts in the microwave radiation-Stimulated Reaction Joint Deep Oxidation of Hydrocarbons and Carbon Monoxide

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Modern Research in Catalysis 2016年第1期5卷 11-18页

作者： Peri A. Muradova Yuriy N. Litvishkov Institute of Catalysis and Inorganic Chemistry Named after M. Nagiyev of Azerbaijan National Academy of Sciences Baku Azerbaijan

This article shows main principles and presents ideas described in the scientific and technical literature, on the mechanism of interaction of microwave radiation with a solid phase materials, which were used as a basis of creation of new perspective, energy efficient and environmentally safe technologies of preparation of heterogeneous catalysts for the reactions which were carried out under the influence of electro-magnetic radiation of microwave radiation. Author’s research results confirm possibilities of practical use of proposed method of hydrothermal oxidation of industrial low-dispersing of aluminum powders with presence of bulk phase of Al(ОН)3·nH2O, with further thermal treatment in microwave field for acquisition of armored А1/А12О33 compositions, which effectively consume energy of microwave radiation. Due to the textured characteristics and thermo-transforming ability, synthesized components can be used as potential universal bearings of catalysts for reactions stimulated by electromagnetic radiation of (2.45 GHz) microwave frequency.

关键词： microwave radiation Heterogeneous Catalysis γ-A12O3/Al-Carrier Conversion of Exhaust Gas Carbon Monoxide Oxides of Metals with Variable Valence

Effects of microwave radiation on brain energy metabolism and related mechanisms

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Journal of Medical Colleges of PLA(China) 2014年第4期29卷 235-243页

作者： Yan-Hui Hao Li Zhao Rui-Yun Peng Beijing Institute of radiation Medicine

With the rapid development of electronic technologies, anxiety regarding the potential health hazards induced by microwave radiation(MW) has been growing in recent years. The brain is one of the most sensitive target organs for microwave radiation, where mitochondrial injury occurs earlier and more severely than in other organs. Energy metabolism disorders do play an important role during the process of microwave radiation-induced brain damage. In this paper, we will review the biological effects of microwave radiation, the features of brain energy supply and consumption and the effects of microwave radiation on mitochondrial energy metabolism and potential related mechanisms.

关键词： microwave radiation Brain Energy metabolism Mitochondria Mechanisms

Degradation of Methylene Blue by Cu2+ Catalitic Wet Oxidation under microwave radiation

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Degradation of Methylene Blue by Cu2+ Catalitic Wet Oxidatio...

Low-intensity microwave radiation of Natural Substances for Physiotherapy

亚太绿色氧化还原技术国际研讨会

作者： Yan Yongsheng* Wang Zhibo Wang Liangming Department of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013

Methylene blue was treated by catalyst Cu under microwave radiated Catalytic Wet Oxidation. various effect were studied by single factor method which of treating condition, including the treatment tim

关键词： microwave radiation Catalytic Wet Oxidation methylene blue perhydrol Copper- containing catalyst.

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Journal of Human Physiology 2020年第2期2卷 1-5页

作者： Yanenko O. Peregudov S. Shevchenko K. Grubnik B. Golovchanska O. National Technical University of Ukraine“Igor Sikorsky Kyiv Polytechnic Institute” KyivUkraine Physiotherapeutic polyclinic KyivUkraine O.Bogomolets National Medical University KyivUkraine

The mechanisms of influence of physiotherapy procedures in ozokeriteparaffin therapy are considered in this *** is shown that microwave electromagnetic radiation formed by heated ozokerite-paraffin mixture is an important component of physiotherapy *** the experimental setup developed by the authors,the radiative abilities of ozokerite,paraffin and their mixtures in the microwave range were *** was found that in the process of cooling the ozokerite-paraffin mixture,during the procedure,negative microwave fluxes occur,affecting the inflammatory processes in the patient’s *** dependences of the microwave radiation level on the composition of the ozokerite-paraffin mixture are *** results of experimental studies allowed us to evaluate the interaction of electromagnetic radiation of ozokerite-paraffin mixtures with human own electromagnetic radiation and to approach the choice of modes of therapeutic interaction more carefully.

关键词： Physiotherapy Ozokerite Paraffin microwave radiation Radiometer Measurement Negative currents