This document provides an overview and schedule for an introduction to geophysics course. It outlines the course structure including exams, homework assignments, and office hours. Key topics that will be covered include seismic refraction, reflection, and inversion methods. Interpretations of geophysical data are described as non-unique, with more than one model potentially explaining observations. Examples of applying these methods to study crustal layering in the ocean basin and across tectonic faults are also presented.
Geological surveys are normally undertaken by private agencies, state government departs of mines and geology, and national geological survey organizations. They maintain the geological inventory of various formations, mineral deposits and resources. They keep all records for the advancement of knowledge of geosciences for the benefit of the nation. Geological mapping are parts of a geological survey. It involves certain procedures. This lesson highlights the methods and procedures of geological mapping.
This Lecture includes the Resistivity survey, field procedure, application advantage, limitaion, Apparant resistivity, VES (Vertical Electrical Sounding), Resistivity Profiling and IP Survey in brief.
the presentation is about Field Astronomy, generally deals with astronomical terms & Co-ordinate system related to field astronomy. Astronomical terms like celestial sphere, Zenith, Nadir & Celestial pole/ equators all are included in these slides; rather than that Celestial latitude & longitude co-ordinate system, Altitude & azimuth co-ordinate system, declination & Right ascension co-ordinate system & Declination & hour angle co-ordinate system are explained in these slides.
Geological surveys are normally undertaken by private agencies, state government departs of mines and geology, and national geological survey organizations. They maintain the geological inventory of various formations, mineral deposits and resources. They keep all records for the advancement of knowledge of geosciences for the benefit of the nation. Geological mapping are parts of a geological survey. It involves certain procedures. This lesson highlights the methods and procedures of geological mapping.
This Lecture includes the Resistivity survey, field procedure, application advantage, limitaion, Apparant resistivity, VES (Vertical Electrical Sounding), Resistivity Profiling and IP Survey in brief.
the presentation is about Field Astronomy, generally deals with astronomical terms & Co-ordinate system related to field astronomy. Astronomical terms like celestial sphere, Zenith, Nadir & Celestial pole/ equators all are included in these slides; rather than that Celestial latitude & longitude co-ordinate system, Altitude & azimuth co-ordinate system, declination & Right ascension co-ordinate system & Declination & hour angle co-ordinate system are explained in these slides.
It covers seismic method, gravity method, electromagnetic method, magnetic method and radiometric method. all these methods help in mineral exploration
Seismic Refraction Test
Subsurface investigation by seismic refraction
Seismic Data Analysis
Seismic refraction instrumental set up and operation
P-waves velocity ranges for different strata
Electrical resistivity a geophysical method and its applications in environm...Oluwaseun Odipe
The common use of Electrical resistivity methods in Environmental Health Science, i.e. safe water aquifer investigation (saline intrusion, groundwater investigation), pollution mapping, site selection (landfill, structures) etc
A helpful presentation for those new to land surveying about the basics and fundamentals of Land Surveying. This presentation is a resource created by Mr. Lacelle and shared for Land Surveyors United members . http://landsurveyorsunited.com
It covers seismic method, gravity method, electromagnetic method, magnetic method and radiometric method. all these methods help in mineral exploration
Seismic Refraction Test
Subsurface investigation by seismic refraction
Seismic Data Analysis
Seismic refraction instrumental set up and operation
P-waves velocity ranges for different strata
Electrical resistivity a geophysical method and its applications in environm...Oluwaseun Odipe
The common use of Electrical resistivity methods in Environmental Health Science, i.e. safe water aquifer investigation (saline intrusion, groundwater investigation), pollution mapping, site selection (landfill, structures) etc
A helpful presentation for those new to land surveying about the basics and fundamentals of Land Surveying. This presentation is a resource created by Mr. Lacelle and shared for Land Surveyors United members . http://landsurveyorsunited.com
Temporal Variations in Earth's Magnetic FieldShivam Shekhar
A presentation discussing various kinds of temporal variations in Earth's magnetic field such as geomagnetic secular variations, geomagnetic excursions, geomagnetic reversals, geomagnetic storms and apparent polar wander along with the genesis of the Sun and the Earth.
“Cis-lunar” space including lunar orbit and the lunar surface is once again a strong focus
as a destination for both robotic and human space exploration
• Multiple nations are now pursuing both robotic exploration programs with spacecraft in
lunar orbit and landers on the lunar surface.
• In addition to these purely robotic exploration programs, NASA has started construction
of the Gateway space station for operations in lunar orbit and development work has
begun on the Human Landing System infrastructure which promises to return humans to
the lunar surface for the first time since the last Apollo missions in the 1970’s.
• Because the Moon has very little atmosphere and no strong intrinsic magnetic field to
protect the surface from meteoroid impacts and charge particles, respectively, the space
environments that need to be considered when designing and operating lunar
exploration missions are essentially the free-field environments used in design of
interplanetary missions
Outline
• Atmosphere
• Lunar regolith and dust
• Illumination and thermal
• Solar UV/EUV
• Ionizing radiation
o GCR
o SPE
o Albedo neutrons
• Space plasma and charging
• Meteoroid environments
o Primary impacts
o Ejecta
• DSNE Lunar Environments
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
When stars align: studies in data quality, knowledge graphs, and machine lear...
Geophysics: Overview
1. Introduction to Geophysics Ali O. Oncel [email_address] Department of Earth Sciences KFUPM Lecture 1 Overview Introduction to Seismology-KFUPM
2. Dr. Ali O. Oncel: Building 26, Room:319 (oncel@kfupm.edu.sa) Saturday : 8:00-9:00 PM room 319 Monday : 8:00-9:00 PM room 319 Wednesday : 8:00-9:00 PM room 319 Any time you can ask me an appointment through e-mail. Scheduled Office Hours Introduction to Seismology-KFUPM
3. Parasnis, P principles of Applied Geophysics 5E , 1997 R.J. Lillie , Whole Earth Geophysics , Prentice Hall, 1999. Recommended Text and Grading Introduction to Seismology-KFUPM GEOP 204: % Final Exam 35 Comprehensive Exam 30 Quiz 15 Homework 15 Class Participation on time 5 Monday is day for weekly exam. Wednesday is day for field-trip or work.
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6. Geology + Physics Geophysics Geophysics aims to interpret the subsurface by combining observations of the Earth Materials (geology) with observations of physical phenomena (physics). Introduction to Seismology-KFUPM
7. Forward Modeling (1) what the cause of our observations? By adjusting the model parameters, we try to find the best model that fit the predictions with observations. Introduction to Seismology-KFUPM
8. Applied Seismology Refraction Reflection Seismic refraction • Used to study large scale crustal layering: thickness and velocity Seismic reflection • “ Imaging” of subsurface reflectors • Difficult to determine accurate velocities and depths Introduction to Seismology-KFUPM
10. Interpretations As for the interpretations of geophysical data, I just want emphasize that most interpretations are actually “ non-unique”. That means more than one interpretation can explain the data. The problem is like that of the “blind men and the elephant;” Thus, all the available information must be synthesized in order to obtain a better picture of the subsurface structure. It is wise to use the words like “uncertain, possibly, unclear suggestions…” when you describe your interpretations. However in the real literature, you may see that a lot of authors still use the words like “ certain, undoubtedly, positive proof, strongly suggested …” Introduction to Seismology-KFUPM
11. Seismic refraction profile recorded in ocean basin, Sheriff and Geldart, 1995 S – Reflections from bottom of water Refraction Interpretation D D - Direct Arrival P P - Lower Crustal Refraction within the crust and from the Moho S Introduction to Seismology-KFUPM
13. Reflection Interpretation Bowen and White, 1986 A migrated seismic-reflection profile across the Vema Transform Fault on the Mid-Atlantic Ridge at 6°N, approximately midway between the African and South American plates. Introduction to Seismology-KFUPM
Editor's Notes
Geophysics aims to interpret the subsurface by combining observations of the Earth Materials (geology) with observations of physical phenomena (physics). A cross section illustrating the surface geology, with no subsurface information. Model of a physical parameter, the change in Earth’s gravity field that would result from a sphere of radius R and density contrast of ( δρ The mathematical equation predicts the change in gravity caused by such a mass buried at a depth, z, below the surface. Observed change in gravity field, along with a model of subsurface density distribution that might cause such a change. The model agrees with the observed surface geology and shows density distributions that results in a predicted gravity anomaly close to that observed.
Both forward and inverse methods are used to interpret geophysical observations. In each case, we want to know “what the cause of our observations”. A forward modeling method assumes a subsurface model and calculates its predictions. By adjusting the model parameters, we try to find the best model that fit the predictions with observations.
While inversion uses mathematical equations to calculate a subsurface model from observation data. For example, shown in the upper left are observed seismograms. The arrival times of both direct and critically refracted waves can be picked from seismograms. (b) A two-layer model showing parameters that can be read from the observed data: slope of the direct arrival; T-axis intercept time; slope of the refracted arrival. c) The mathematical equations that related the observed data with model parameters (v1, v2, h). d) The result from solving the equations in c).
![Introduction to Geophysics Ali O. Oncel [email_address] Department of Earth Sciences KFUPM Lecture 1 Overview Introduction to Seismology-KFUPM](https://image.slidesharecdn.com/lecture1-1-091220220403-phpapp02/85/Geophysics-Overview-1-320.jpg)
