A5041764259- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Spacecraft and Cryogenic Technologies
- Air Quality Monitoring and Forecasting
- Biodiesel Production and Applications
- Air Quality and Health Impacts
- Radioactive element chemistry and processing
- Water Quality Monitoring and Analysis
- Nuclear Physics and Applications
- Electrochemical Analysis and Applications
- Analytical Chemistry and Sensors
- Radiation Detection and Scintillator Technologies
- Geochemistry and Geologic Mapping
- Nuclear reactor physics and engineering
- Atmospheric chemistry and aerosols
- Radioactive contamination and transfer
- Enzyme Catalysis and Immobilization
- Laser-Plasma Interactions and Diagnostics
- Chemical and Environmental Engineering Research
- Process Optimization and Integration
- Adsorption and biosorption for pollutant removal
- Vehicle Noise and Vibration Control
- Hearing Loss and Rehabilitation
- Water Quality and Resources Studies
National University of Engineering
2018-2023
Centro Peruano de Estudios Sociales
2021
Universidad Nacional Agraria La Molina
2018
Lawrence Livermore National Laboratory
1994
Sharp Memorial Hospital
1994
Lawrence Berkeley National Laboratory
1979-1982
University of California, Berkeley
1981-1982
Fusion Academy
1982
Fusion (United States)
1982
Weatherford College
1982
The Weather Research and Forecasting-Chemistry (WRF-Chem) model was used to develop an operational air quality forecast system for the Metropolitan Area of Lima-Callao (MALC), Peru, that is affected by high particulate matter concentrations episodes.In this work, we describe implementation quality-forecasting platform be in elaboration public policies decision makers, as a research tool evaluate formation transport pollutants MALC.To examine skills new system, pollution event April 2016...
Cadmium (Cd) is a highly toxic heavy metal considered carcinogenic to humans. The adsorption behavior of cadmium using untreated and chemically modified rice husk was investigated. Experimental tests were carried out evaluate the influence variables pH, initial concentration cadmium, dosage adsorbent in process. In optimal experimental conditions, maximum efficiency 92.65%. Fourier-transform infrared spectroscopy (FTIR) scanning electron microscope (SEM) used allowing identification main...
Lima is the capital of Republic Peru. It most important city in country and as other Latin America metropolises have multiple problems, including air pollution due to particulate material above quality standards, emitted by 1.6 million vehicles. The "on-line" coupled model meteorology chemistry transport meteorological/chemistry, WRF/Chem (Weather Research Forecasting with Chemistry) has been used Metropolitan Area, validated against data observed at ground level ten stations National...
The electrocoagulation process is an electrochemical technique that has demonstrated wide potential because it can be applied to wastewater from different industrial sectors considering the principles of electrolysis and coagulation.It a low-cost method easy installation.Effluents with high concentrations oils grease chemical oxygen demand (COD) treated successfully obtaining removal efficiencies.The purpose this study was analyze effect current density on performance oil/grease (OG), COD,...
Objectives. To characterize the total content of heavy metals (Cd, Cr, Cu, Hg, Mo, Ni, Pb, and Zn) trace elements (As Se) interest, their bioavailability solubility during composting cow manure tree litter in piles inoculated with beneficial microorganism (IBM), or not (NBM), on university campus Universidad Nacional Agraria La Molina (UNALM). Methods. The investigation evaluated six piles, three IBM NBM for 120 days. Every 30 days, a composite sample was taken from each pile. raw materials...
This research focused on analyzing the behavior of hourly average concentrations PM10 and PM2.5 in relation to vehicular traffic, as well effect relative humidity these concentrations. Measurements particulate matter were recorded by National Meteorology Hydrology Service Peru (SENAMHI) at five surface air quality stations. The profiles are related traffic behavior, showing high levels peak hours, while flatter better February (summer). decrease between 80 65% mornings has a greater increase...
The magnet has two symmetric and independent halves, each containing a cold mass assembly operating nominally at 4.5 K, set of vapor cooled leads, support system, liquid nitrogen shield vacuum vessel. Also included in half is forward field shaper which provides component magnetic induction normal to the path low angle muons region, thereby improving their resolution. unique features this are conductor design itself large coil diameter, demands an on-site winding operation. use natural...
Background: This research deals with the manufacture of sodium sulphides and sulfhydrate in an isothermal multiphase chemical reactor to produce concentrated aqueous solutions (greater than 43%) through Gas-Liquid-Solid reactions from hydrogen sulfide hydroxide at 50%. Methods: A method is proposed that integrates recovery industrial process where H 2 S gas generated as a sub product, strategy developed was integrated into manufacturing plant dithiophosphoric acids (ADTF) it possible recover...
Objectives: The Pb non-biodegradability results in bioaccumulation living organisms causing serious health disorders. present study aimed to investigate the capacity of (II) adsorption aqueous solutions using Brassica nigra species as biosorbent. Methods: was conducted a synthetic solution with three concentrations (5, 15, and 30 ppm). B. suitably treated until it became dry particles. After sifting it, ranges grain sizes were obtained. Samples particles analyzed before after biosorption...
Three model superconducting dipole magnet 1m long, without iron, having a bore diameter of 76 mm have been built epoxy resins or other adhesives and tested in He I II. The conductor is the 23-strand Rutherford-type cable used Fermilab Doubler Saver magnets, insulated with Mylar Kapton. two-layer winding highly compressed by system structural support rings tapered collets. Little "training" was required to reach quench currents greater than 95 percent "short sample" Helium I. maximum current...
In order to study the treatment of wastewater from a meat plant in batch reactor, electrocoagulation (EC) process with aluminum and iron electrodes was applied.Foams formed show brown, greenish, reddish colors, foams mainly whitish color.The effects applied voltages (6, 8, 10 V) were analyzed over time on parameters such as current density (A/m 2 ), pH, temperature, removal percentage ionic conductivity (µS/cm), turbidity (nephelometric units), chemical oxygen demand (COD), thermotolerant...
Three model superconducting dipole magnets, lm length and having a bore diameter of 76mm, fabricated without epoxy resins or other adhesives, have been built the first two tested in He I II. The conductor is 23-strand Rutherford-type cable used Fermilab Doubler/Saver insulated with Mylar Kapton. two-layer winding highly compressed by system structural support rings tapered collets. Little "training" was required. Quench currents greater than 95 percent "short sample" were obtained rise-times...
Abstract The present study is intended to get know the levels of perimeter diurnal environmental noise four hospitals in city Lima. measurement mode used at each hospital was A-weighting, with an integration time five minutes per recording. It measured FAST calibrations made beginning and end day. Statistical analysis consisted mean comparison T test which applied all considered study. At hospitals, hours both on working days non-working (Sunday), LAeq values are higher than 83 dBA. On days,...
The removal of chemical oxygen demand (COD) from the wash water trucks transporting diesel by electrocoagulation using Al-Al and Fe-Fe electrode arrays with a spacing 0.03 m is promising alternative.The experiments in batch mode were carried out three current densities 80.2, 121.97, 138.68 A/m 2 .The initial pH washing was 7.3.During process it experienced changes 0.6 -0.8 Al-and-Fe electrodes, respectively.With density 80.2 , COD efficiency stabilized 20 min, reaching removals 99.21% 97.9%...
The ESCAR magnet cooling system has been successfully demonstrated. This two-phase helium includes a CTI-Sulzer gas-bearing turbine refrigerator with two-stage compression by oil-lubricated screw compressors, 120 m of 5-cm-diameter vacuum-insulated transfer line and twelve series-connected cryostats weirs for liquid level control. refrigeration plant provides up to 1900 W at 4.5 K mass flow 113 g/s. Heat load within the measured 0.25 W/m in sub-system testing. Cool-down times 12 warm-iron...
The current study aims to discover the chemical-morphological characteristics of PM10 through analysis Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) and Scanning Electron Microscopy (SEM), respectively, in Metropolitan Area Lima (MEAL) period from January 04 18, 2019. also analyze aerosol optical depth (AOD) 1, 2014 October 15, 2020. effect PM2.5 concentrations on health 2016 has been quantified. results indicate that daily value 50 μg/m3 recommended by World Health...
Data from tests in He II of four 1-meter-long magnets are presented. The maximum quench current is increased up to 30 percent, compared with I. calorimetric measurements heat generated during cyclic operation Quenches were induced by heaters placed near the conductor, and energy required induce quenches I compared.
The NIF Target Area is designed for ICF experiments with the goal of fusion ignition. must provide appropriate conditions before, during, and after each shot. repeated introduction large amounts laser energy into chamber emission from a cryogenic target represent new challenges in facility design. Prior to shot, provides proper illumination geometry, vacuum, stable platform its diagnostics. During impact introduced minimized, workers public are protected excessive prompt radiation doses....