121-132,Vancouver, bc, canada (2008) Hengartner,.: Hiding location information from location-based services:Proceedings of the 2007 International Conference on Mobile data management,. 245-264, (2007) sion,.: On the computational practicality of private information retrieval: Proceedings of the network and Distributed Systems Security symposium. Stony Brook network security and Applied Cryptography lab. (2007) Samet., sankaranarayanan., Alborzi., Scalable network distance browsing in spatial databases, Proceedings of the 2008 acm sigmod international conference on Management of data,.43-54, vancouver, canada june ( 2008). Gertz, a kwong, Charles. Martel, Glen n, premkumar.
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62-76, 2007 Zhong,., li,., liu,. R.: Privacy-preserving location-based services for mobile users in wireless networks. Technical report, yale University, pp 1-13 2004) Indyk,., woodruff,. P.: Polylogarithmic story private approximations and efficient matching. In: Halevi,., rabin,. (eds.) Lecture notes in Computer Science, volume 3876/2006, Theory of Cryptography,. 245-264 (2006) Khoshgozaran., Shirani-mehr., Shahabi.: spiral, a scalable private information retrieval approach to location privacy: The 2nd International Workshop on Privacy-Aware location-based Mobile services (palms) in conjunction with mdm 2008, beijing, China (2008) avinahs Kumar Sahu Spatial Data security methods References:. Iyer, hakan., Executing sql over vita encrypted data in the database-service-provider model, Proceedings of the acm sigmod international conference on Management of data,. 59-83, (2002) Ghinita., kalnis., Khoshgozaran., Shahabi., tan. L.: Private queries in location based services: anonymizers are not necessary: sigmod 2008,.
239- 257, (2007) avinahs Kumar Sahu Spatial Data security paper methods References: yiu,. S., huang,., lu,.: Spacetwist: Managing the trade-offs among location privacy, query performance, and query accuracy in mobile services: icde, pp 366- 375 2008) Lung. M., Ghinita., jensen. Outsourcing search Services on Private Spatial Data. Icde,., (2009) yiu1. L., Ghinita., jensen. Enabling search services on outsourced private spatial data. The vldb journal,. Zhong,., goldberg,., hengartner,.: louis, lester and pierre: Three protocols for location privacy: Borisov,., golle,.
(eds.) lncs sdm, pp 2005) Gedik,., liu,.: A customizable k-anonymity model for protecting location privacy. In:icdcs 2005, columbus, oh,. 620- 629, (2005) Beresford,. R., Stajano,.: Location privacy in pervasive computing. Ieee pervasive computing 2(1. 46-55, (2003) Kido., yanagisawa., satoh. Protection of Location Privacy using Dummies for Location-based Services. Icdew (2005) Khoshgozaran,., Shahabi,.: Blind evaluation of nearest neighbor queries using space transformation to preserve location privacy. Symposium on Spatial and Temporal Databases (sstd),.
Symposium on Spatial and Temporal Databases, pp. 98-116 (2009) Gruteser,., Grunwald,.: Anonymous usage of location-based services through spatial and temporal cloaking. In: MobiSys 2003, san Francisco, ca,. 31-42, (2003) mokbel,. G.: The new casper: query processing for location services without compromising privacy: vldb,. 763.774 2006) Bettini,., wang,. S., jajodia,.: Protecting privacy against location-based personal identification. In: Jonker,., petkovi´c,.
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Under guidance of, prof. Venkatachalam, centre of Studies in Resources Engineering. Indian Institute of Technology, bombay, first Stage Project Presentation 18th October 2010, avinahs Kumar Sahu. Spatial Data security methods, outline, introduction, problem Statement. Related italiano Work, proposed Approach, experiment, summary and Future work, avinahs Kumar Sahu.
Spatial Data security methods, introduction, introduction, problem Statement. Spatial Data security methods, problem Statement, data Owner. Service Provider, transformed Data returned, transformation Parameters, transformed query. User Inverse Transformation Original Data avinahs Kumar Sahu Spatial Data security methods Related Work Anonymization, dummies and Cloaking-Based Approaches Transformation-Based Approaches Cryptographic-Based Approaches pir-based Approaches Authentic publication Approaches Execute sql over encrypted Data avinahs Kumar Sahu Spatial Data security methods Related Work Anonymization, dummies and. A hybrid Technique for Private location- based queries with Database Protection.
Instrument Background: typically clean sample holder or planchet is used. Method Blank: deionized water containing all reagents carried through sample preparation measurement procedures duplicates field Duplicate: Extra sample taken from same place, analyzed independently to document sampling precision. Matrix Duplicate: Intralaboratory split sample used to document method precision in a given matrix spikes spike: Known activity/nuclide addition to deionized water. Matrix Spike: Known activity/nuclide addition to sample al"prior to preparation to document bias in a given matrix. (Matrix interference) Matrix Spike duplicate: Intralaboratory split sample with known additions prior to preparation to document precision and bias other qa/qc components continuing Calibration Verification evaluates instrument drift Second source reference materials Different source than used for calibration Certified Reference materials evaluate method bias Various.
That do and report qa data usually produce reliable data issues to consider is the lab. Certified to perform the specific procedure? Using the correct preparation and analysis methods for the dqo? Are qa data (blanks, duplicates, spikes, reference materials, ) within defined limits? Spatial Data security methods PowerPoint Presentation. Download Presentation, spatial Data security methods 1 / 21, spatial Data security methods. Avinash Kumar Sahu Under guidance of Prof. Venkatachalam Centre of Studies in Resources Engineering Indian Institute of Technology, bombay first Stage Project Presentation 18 th October 2010. Presentation Transcript, spatial Data security methods, avinash Kumar Sahu.
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Epa 900.0: Gross Alpha/Beta (evaporation epa 900.1: Gross Alpha (co-precipitation) epa 903.0: Radium 226 nj method: Radium 228 epa 00-07: Uranium epa 913: Radon detection limit definitions instrument Detection Limit (IDL) Lowest observable value above instrument background in the absence of best sample matrix Method Detection. Issues affecting measurement choice regulatory implications/limitations Detection limit needs Potential analytical interferences Cost Time Experience/skill needed to conduct analyses QA/qc components instrument Calibration Blanks Duplicates Spikes Calibration Verification Reference materials calibration epa approves the use of particular isotopes to create attenuation curves. Typically 20 or more planchets of varying weight. Attenuation standards are typically laboratory created using nist traceable materials. They should mimic actual samples. Some methods use internal tracers for calibration. Samples must be within the weight range dictated by the method. Blanks trip Blank: deionized water carried from laboratory to sampling location and back to the laboratory.
Consult dep field Sampling Manual and Laboratory sop manual. Collection of radiological samples - typically 1 gallon plastic for all but Radon-222 and Tritium. Preservation (Where and How? hNO3 to ph 2 is ideal. Filtration before or after h, holding Times within 48 hours for gross alpha/beta (includes collection, transport, preparation and counting). Analyze within 6 months, sample preparation methods caveats, njdep/oqa only certifies for certain thesis preparation methods. You must match the method of preparation to the method of analysis. Sdwa samples must use federally approved methods. Njdhss preparation methods for drinking water.
be conceivable sources of inaccuracy which are biased and not subject to random fluctuations and those which may be due to random cause but cannot be or are not assessed by statistical methods. Propogation of errors, the total error for any analytical scheme involves errors in all steps: sampling, preparation and measurement. If sampling uncertainty is 50, and the analysis only has a 2 error; your total error is still very large. Data quality objectives (DQOs a statement of the overall level of uncertainty that a decision-maker is willing to accept in results derived from environmental data. The level of uncertainty can be defined through defining the uncertainty in each step of the analytical process. Qa data are key in defining the level of uncertainty. Samplecollection preservation in the field.
What well cover today. Copyright Complaint Adult Content Flag as Inappropriate. I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described. Download golf Presentation, an Image/Link below is provided (as is) to download presentation. Download Policy: Content on the website is provided to you as is for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. Presentation Transcript, radiochemical Methods and Data evaluation,. New Jersey department of health senior Services, Environmental Chemical and Laboratory services, radioanalytical Services, what well cover today, the analytical process: sample collection to data reporting and uncertainties. Methods for sample preparation for drinking water samples.
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GmapDoc website, june 2001 7 november 2005 info document :.4 kb 7 november 2005 info document :.4 kb 7 november 2005 info document :.4 kb 7 november 2005 info document :.4 kb 7 november 2005 info document :.8 kb. Combinations of Unlike objects, how many ways can you choose 2 marbles from the 5 different colored marbles above if order does not matter? (g, r g, b g, w g, y) (r, g r, b r, w r, y) (b, g b, r b, w b, y) (w, g w, r w, b w, y) (y, g y, r y, b y, w). Download, skip this Video, loading SlideShow write in 5 Seconds. Radiochemical Methods and Data evaluation PowerPoint Presentation. Download Presentation, radiochemical Methods and Data evaluation 1 / 22, radiochemical Methods and Data evaluation. Kirk nemeth New Jersey department of health amp; Senior Services, Environmental Chemical and Laboratory services, radioanalytical Services.