A photo collage celebrating 35 Diamond Years with De Beers, African Diamonds, West African Diamonds, Lucara Diamond, Rockwell Diamonds and Botswana Diamonds.
De Beers was a company active in the diamond industry from 1985 to 2006, primarily involved in activities related to AFD and WAD as well as LUC and RDI programs. From 2006 to 2015, the individual worked for 30 years total in various roles within the diamond industry.
Diamond exploration, mining, financing and driving entrepreneurial behaviour.James AH Campbell
A presentation entitled:
"Diamond exploration, mining, financing and driving entrepreneurial behaviour".
to the Antwerp World Diamond Council and Gordon Institute of Business ('GIBS') global seminar entitled "From Mine to Finger. A deep dive into the world of diamonds". 7 February 2024 at GIBS.
Most of the participants are either entrepreneurs in the diamond downstream space or academics from both institutions.
Corporate Governance for South African Mining Companies (a practitioner's view)James AH Campbell
Corporate Governance for South African Mining Companies (a practitioner's view).
Compliance & Reporting in the Minerals Industry
15th September 2023
University of the Witwatersrand
(MINN7052A)
Attracting Funds to Develop the Diamond Potential of Southern AfricaJames AH Campbell
Attracting Funds to Develop the Diamond Potential of Southern Africa
JAHCampbell
24 Aug 2023
Presentation to the Kimberely International Diamond Conference.
The document argues that forecasts for demand growth in green metals are overhyped and unrealistic. It cites forecasts showing growth rates as high as 42x for lithium over the next 20 years, and claims these forecasts will not come to fruition. It also notes that there has not been enough capital investment or exploration, especially grassroots exploration, to support achieving the forecasted demand levels. The document concludes that the case for overhyped forecasts of green metals demand has been made.
Prospecting for Solutions: Challenges facing the South African Mining IndustryJames AH Campbell
Prospecting for Solutions: Challenges facing the South African Mining Industry
James Campbell
Presentation to Drexel University MBA group in Johannesburg on 11 May 2023.
This technical report summarizes exploration and mining activities on the Tirisano alluvial diamond project in South Africa. The project includes three contiguous prospecting rights totaling approximately 5,000 hectares. Previous exploration included remote sensing, geophysics, drilling and bulk sampling programs. Bulk sampling recovered grades between 20-60 carats per hundred tons from six pits. Diamond recovery was between 1.1 and 2.5 carats per hundred tons. Diamonds were mostly small, with a few stones over 2 carats. Based on drilling and sampling, an inferred resource of 27.5 million tons at 40 carats per hundred tons was estimated, containing about 11 million carats. Further exploration is recommended to expand resources.
De Beers was a company active in the diamond industry from 1985 to 2006, primarily involved in activities related to AFD and WAD as well as LUC and RDI programs. From 2006 to 2015, the individual worked for 30 years total in various roles within the diamond industry.
Diamond exploration, mining, financing and driving entrepreneurial behaviour.James AH Campbell
A presentation entitled:
"Diamond exploration, mining, financing and driving entrepreneurial behaviour".
to the Antwerp World Diamond Council and Gordon Institute of Business ('GIBS') global seminar entitled "From Mine to Finger. A deep dive into the world of diamonds". 7 February 2024 at GIBS.
Most of the participants are either entrepreneurs in the diamond downstream space or academics from both institutions.
Corporate Governance for South African Mining Companies (a practitioner's view)James AH Campbell
Corporate Governance for South African Mining Companies (a practitioner's view).
Compliance & Reporting in the Minerals Industry
15th September 2023
University of the Witwatersrand
(MINN7052A)
Attracting Funds to Develop the Diamond Potential of Southern AfricaJames AH Campbell
Attracting Funds to Develop the Diamond Potential of Southern Africa
JAHCampbell
24 Aug 2023
Presentation to the Kimberely International Diamond Conference.
The document argues that forecasts for demand growth in green metals are overhyped and unrealistic. It cites forecasts showing growth rates as high as 42x for lithium over the next 20 years, and claims these forecasts will not come to fruition. It also notes that there has not been enough capital investment or exploration, especially grassroots exploration, to support achieving the forecasted demand levels. The document concludes that the case for overhyped forecasts of green metals demand has been made.
Prospecting for Solutions: Challenges facing the South African Mining IndustryJames AH Campbell
Prospecting for Solutions: Challenges facing the South African Mining Industry
James Campbell
Presentation to Drexel University MBA group in Johannesburg on 11 May 2023.
This technical report summarizes exploration and mining activities on the Tirisano alluvial diamond project in South Africa. The project includes three contiguous prospecting rights totaling approximately 5,000 hectares. Previous exploration included remote sensing, geophysics, drilling and bulk sampling programs. Bulk sampling recovered grades between 20-60 carats per hundred tons from six pits. Diamond recovery was between 1.1 and 2.5 carats per hundred tons. Diamonds were mostly small, with a few stones over 2 carats. Based on drilling and sampling, an inferred resource of 27.5 million tons at 40 carats per hundred tons was estimated, containing about 11 million carats. Further exploration is recommended to expand resources.
This document provides an analysis of Botswana Diamonds plc by First Equity Limited. It values Botswana Diamonds' key projects including Thorny River, KX36, and Ghaghoo based on their resource estimates and development risks. For Thorny River, the analyst estimates a risked valuation of $44.5 million based on an open pit mining plan and exploration upside. For Ghaghoo, the value is lowered to $7.2 million given lapsed sales agreements but potential for redeals. For KX36, the value is $23.5 million due to increased development risk without Ghaghoo restart. Based on these values, the company's enterprise valuation is estimated at
Is there any overlap between Corporate Governance & Public Reporting?James AH Campbell
Is there any overlap between Corporate Governance & Public Reporting?
Presentation to the Geological Society of South Africa.
10th October 2022, Johannesburg.
Prospecting for Solutions: Challenges facing the South African Mining IndustryJames AH Campbell
Prospecting for Solutions: Challenges facing the South African Mining Industry.
Society of Economic Geologists, SA Chapter.
6th October 2022, University of the Witwatersrand.
Corporate Governance for South African Mining Companies (a practitioner's view)James AH Campbell
This document provides an overview of corporate governance for South African mining companies from the perspective of a practitioner in the industry. It discusses key topics such as the King IV Code, directors' duties, ethics, integrated reporting, socially responsible investment, and the importance of having a social license to operate. The document also examines issues specific to junior mining companies and the role of corporate governance indices and custodians in promoting transparency and accountability.
1) The AK6 kimberlite in Botswana was discovered in 1969 but considered low interest until improved exploration technologies allowed reexamination in 1998.
2) Advanced exploration from 2005-2006 involved large diameter drilling, sampling, and diamond recovery to evaluate the deposit. This led to an initial inferred resource of 11.6 million carats from 48.5 million tons at 24 carats per hundred tons.
3) Further work including trenching and more drilling was planned to upgrade the resource to the indicated classification required for a bankable feasibility study and potential future mining.
The Future of Botswana's Diamond Resources
James AH Campbell
Botswana Resources Infrastructure and Energy Forum ('BRIEF')
Gaborone, Botswana
16-17 May 2022
James Campbell, the father of the bride Nosky, gives a speech at her wedding to Douglas. He welcomes Douglas to the family and recalls how Douglas became part of their family during the COVID lockdown. James wishes the couple a life of partnership, love, and shared responsibility. He provides advice such as learning to attack problems together rather than each other, making time for each other, and never letting the sun go down on an argument. James toasts to the couple's future together with blessings from the Irish, Ndebele, and English traditions.
This Competent Persons Report summarizes the exploration work conducted to date on the Bat Shelomo gemstone project located in northern Israel. Drilling and sampling programs between 2009-2021 identified volcanic rock units and sedimentary deposits containing gemstone minerals such as garnet, spinel, and sapphire. A 54.03 carat garnet was recovered from a bulk sample in 2020. Volume block modeling using drilling data estimated a preliminary resource. Further exploration including additional drilling is recommended to fully evaluate the economic potential of the project.
Volcanoes Presentation with material chiefly drawn from the Geological Society of the UK.
Presented to Reddam House Waterfall learners on 14 March 2022
This document provides a list of reports, presentations, videos, articles, and social media links from 2021 that relate to Botswana Diamonds PLC. It includes annual reports, brokers notes, presentations on various diamond exploration projects in South Africa and Botswana, podcasts and interviews, and articles in mining publications. The links cover topics such as effective investment in early-stage diamond projects, corporate governance, and the acquisition of the Ghaghoo diamond mine. Social media links are also provided for Botswana Diamonds and its CEO James Campbell.
This document is Botswana Diamonds PLC's 2021 annual report. It provides summaries of the company's projects and strategy. In Botswana, the company has conditionally agreed to acquire the Ghaghoo diamond mine through a joint venture. It also owns the nearby KX36 deposit. The company is exploring for new kimberlites through partnerships. In South Africa, the company discovered two diamondiferous blows at its Thorny River project and is evaluating commercial production potential. It also acquired additional interests in the Vutomi Mining project. The company aims to explore and develop diamond deposits in southern Africa, focusing on the geologically prospective Kaapvaal craton region.
Technological approaches to diamond exploration on the Thorny River prospect,...James AH Campbell
Technological approaches to diamond exploration on the Thorny River prospect, South Africa.
Presentation to the Geological Society of South Africa's African Exploration & Technology Showcase.
Johannesburg (virtual) edition.
12 November 2021.
Corporate Governance for South African Mining Companies (a practitioners view)James AH Campbell
Corporate Governance for South African Mining Companies (a practitioners view)
Compliance & Reporting in the Minerals Industry
19th October 2021
University of the Witwatersrand
James Campbell
James Campbell has over 35 years of experience in leadership roles in the diamond industry, including as Managing Director of listed companies. He is currently Managing Director of Botswana Diamonds plc, helping develop projects through joint ventures. Prior roles include executive positions with Rockwell Diamonds Inc, African Diamonds plc, and non-executive roles on other company boards. He has extensive experience exploring for diamonds and developing small-scale mines.
The document summarizes a value engineering study conducted for the development of the AK6 kimberlite diamond mine in Botswana. It describes the resource definition process, terms of the mining license, a phased mining and processing approach using autogenous milling to reduce costs, infrastructure plans that minimize on-site requirements, and capital and operating costs estimated from the value engineering study. Social and environmental responsibilities for the project are also outlined.
I am an accomplished and driven administrative management professional with a proven track record of supporting senior executives and managing administrative teams. I am skilled in strategic planning, project management, and organizational development, and have extensive experience in improving processes, enhancing productivity, and implementing solutions to support business objectives and growth.
This document provides an analysis of Botswana Diamonds plc by First Equity Limited. It values Botswana Diamonds' key projects including Thorny River, KX36, and Ghaghoo based on their resource estimates and development risks. For Thorny River, the analyst estimates a risked valuation of $44.5 million based on an open pit mining plan and exploration upside. For Ghaghoo, the value is lowered to $7.2 million given lapsed sales agreements but potential for redeals. For KX36, the value is $23.5 million due to increased development risk without Ghaghoo restart. Based on these values, the company's enterprise valuation is estimated at
Is there any overlap between Corporate Governance & Public Reporting?James AH Campbell
Is there any overlap between Corporate Governance & Public Reporting?
Presentation to the Geological Society of South Africa.
10th October 2022, Johannesburg.
Prospecting for Solutions: Challenges facing the South African Mining IndustryJames AH Campbell
Prospecting for Solutions: Challenges facing the South African Mining Industry.
Society of Economic Geologists, SA Chapter.
6th October 2022, University of the Witwatersrand.
Corporate Governance for South African Mining Companies (a practitioner's view)James AH Campbell
This document provides an overview of corporate governance for South African mining companies from the perspective of a practitioner in the industry. It discusses key topics such as the King IV Code, directors' duties, ethics, integrated reporting, socially responsible investment, and the importance of having a social license to operate. The document also examines issues specific to junior mining companies and the role of corporate governance indices and custodians in promoting transparency and accountability.
1) The AK6 kimberlite in Botswana was discovered in 1969 but considered low interest until improved exploration technologies allowed reexamination in 1998.
2) Advanced exploration from 2005-2006 involved large diameter drilling, sampling, and diamond recovery to evaluate the deposit. This led to an initial inferred resource of 11.6 million carats from 48.5 million tons at 24 carats per hundred tons.
3) Further work including trenching and more drilling was planned to upgrade the resource to the indicated classification required for a bankable feasibility study and potential future mining.
The Future of Botswana's Diamond Resources
James AH Campbell
Botswana Resources Infrastructure and Energy Forum ('BRIEF')
Gaborone, Botswana
16-17 May 2022
James Campbell, the father of the bride Nosky, gives a speech at her wedding to Douglas. He welcomes Douglas to the family and recalls how Douglas became part of their family during the COVID lockdown. James wishes the couple a life of partnership, love, and shared responsibility. He provides advice such as learning to attack problems together rather than each other, making time for each other, and never letting the sun go down on an argument. James toasts to the couple's future together with blessings from the Irish, Ndebele, and English traditions.
This Competent Persons Report summarizes the exploration work conducted to date on the Bat Shelomo gemstone project located in northern Israel. Drilling and sampling programs between 2009-2021 identified volcanic rock units and sedimentary deposits containing gemstone minerals such as garnet, spinel, and sapphire. A 54.03 carat garnet was recovered from a bulk sample in 2020. Volume block modeling using drilling data estimated a preliminary resource. Further exploration including additional drilling is recommended to fully evaluate the economic potential of the project.
Volcanoes Presentation with material chiefly drawn from the Geological Society of the UK.
Presented to Reddam House Waterfall learners on 14 March 2022
This document provides a list of reports, presentations, videos, articles, and social media links from 2021 that relate to Botswana Diamonds PLC. It includes annual reports, brokers notes, presentations on various diamond exploration projects in South Africa and Botswana, podcasts and interviews, and articles in mining publications. The links cover topics such as effective investment in early-stage diamond projects, corporate governance, and the acquisition of the Ghaghoo diamond mine. Social media links are also provided for Botswana Diamonds and its CEO James Campbell.
This document is Botswana Diamonds PLC's 2021 annual report. It provides summaries of the company's projects and strategy. In Botswana, the company has conditionally agreed to acquire the Ghaghoo diamond mine through a joint venture. It also owns the nearby KX36 deposit. The company is exploring for new kimberlites through partnerships. In South Africa, the company discovered two diamondiferous blows at its Thorny River project and is evaluating commercial production potential. It also acquired additional interests in the Vutomi Mining project. The company aims to explore and develop diamond deposits in southern Africa, focusing on the geologically prospective Kaapvaal craton region.
Technological approaches to diamond exploration on the Thorny River prospect,...James AH Campbell
Technological approaches to diamond exploration on the Thorny River prospect, South Africa.
Presentation to the Geological Society of South Africa's African Exploration & Technology Showcase.
Johannesburg (virtual) edition.
12 November 2021.
Corporate Governance for South African Mining Companies (a practitioners view)James AH Campbell
Corporate Governance for South African Mining Companies (a practitioners view)
Compliance & Reporting in the Minerals Industry
19th October 2021
University of the Witwatersrand
James Campbell
James Campbell has over 35 years of experience in leadership roles in the diamond industry, including as Managing Director of listed companies. He is currently Managing Director of Botswana Diamonds plc, helping develop projects through joint ventures. Prior roles include executive positions with Rockwell Diamonds Inc, African Diamonds plc, and non-executive roles on other company boards. He has extensive experience exploring for diamonds and developing small-scale mines.
The document summarizes a value engineering study conducted for the development of the AK6 kimberlite diamond mine in Botswana. It describes the resource definition process, terms of the mining license, a phased mining and processing approach using autogenous milling to reduce costs, infrastructure plans that minimize on-site requirements, and capital and operating costs estimated from the value engineering study. Social and environmental responsibilities for the project are also outlined.
I am an accomplished and driven administrative management professional with a proven track record of supporting senior executives and managing administrative teams. I am skilled in strategic planning, project management, and organizational development, and have extensive experience in improving processes, enhancing productivity, and implementing solutions to support business objectives and growth.
LinkedIn for Your Job Search June 17, 2024Bruce Bennett
This webinar helps you understand and navigate your way through LinkedIn. Topics covered include learning the many elements of your profile, populating your work experience history, and understanding why a profile is more than just a resume. You will be able to identify the different features available on LinkedIn and where to focus your attention. We will teach how to create a job search agent on LinkedIn and explore job applications on LinkedIn.
Parabolic antenna alignment system with Real-Time Angle Position FeedbackStevenPatrick17
Introduction
Parabolic antennas are a crucial component in many communication systems, including satellite communications, radio telescopes, and television broadcasting. Ensuring these antennas are properly aligned is vital for optimal performance and signal strength. A parabolic antenna alignment system, equipped with real-time angle position feedback and fault tracking, is designed to address this need. This document delves into the components, design, and implementation of such a system, highlighting its significance and applications.
Importance of Parabolic Antenna Alignment
The alignment of a parabolic antenna directly affects its performance. Even minor misalignments can lead to significant signal loss, which can degrade the quality of the received signal or cause communication failures. Proper alignment ensures that the antenna's focal point is accurately directed toward the signal source, maximizing the antenna's gain and efficiency. This precision is especially crucial in applications like satellite communications, where the antenna must track geostationary satellites with high accuracy.
Components of a Parabolic Antenna Alignment System
A parabolic antenna alignment system typically includes the following components:
Parabolic Dish: The primary reflector that collects and focuses incoming signals.
Feedhorn and Low Noise Block (LNB): Positioned at the dish's focal point to receive signals.
Stepper or Servo Motors: Adjust the azimuth (horizontal) and elevation (vertical) angles of the antenna.
Microcontroller (e.g., Arduino, Raspberry Pi): Processes sensor data and controls the motors.
Potentiometers: Provide feedback on the antenna's current angle positions.
Fault Detection Sensors: Monitor for potential faults such as cable discontinuities or LNB failures.
Control Software: Runs on the microcontroller, handling real-time processing and decision-making.
Real-Time Angle Position Feedback
Real-time feedback on the antenna's angle position is essential for maintaining precise alignment. This feedback is typically provided by potentiometers or rotary encoders, which continuously monitor the azimuth and elevation angles. The microcontroller reads this data and adjusts the motors accordingly to keep the antenna aligned with the signal source.
Fault Tracking in Antenna Alignment Systems
Fault tracking is vital for the reliability and performance of the antenna system. Common faults include cable discontinuities, LNB malfunctions, and motor failures. Sensors integrated into the system can detect these faults and either notify the user or initiate corrective actions automatically.
Design and Implementation
1. Parabolic Dish and Feedhorn
The parabolic dish is designed to reflect incoming signals to a focal point where the feedhorn and LNB are located. The dish's size and shape depend on the specific application and frequency range.
2. Motors and Position Control
Stepper motors or servo motors are used to control the azimuth and elevation of
Delta International is an ISO Certified top recruiting agency in Pakistan, recognized for its highly experienced recruiters. With a diverse range of international jobs for Pakistani workers, Delta International maintains extensive connections with overseas employers, making it one of the top 10 recruitment agencies in Pakistan. It stands out in the list of recruitment agencies in Pakistan for its exceptional services.
https://www.ditrc.com/
Known for its expertise in the Gulf region, Delta International is among the top 10 international recruitment agencies, specializing in expert headhunting and candidate sourcing. This prominence places it in the list of top 10 overseas recruitment agencies in Pakistan. As one of the best overseas recruitment agencies in Pakistan, Delta International is a trusted name for manpower recruitment, particularly from Pakistan.
The agency is not just a leading name in Karachi but also recognized as one of the best recruitment agencies in Islamabad. Delta International consistently ranks as the top recruitment agency in Pakistan, earning its reputation among the top recruiting agencies in Pakistan. It is also regarded as one of the top overseas employment agencies in Pakistan.
For those seeking foreign jobs, Delta International is listed among the top overseas employment companies in Pakistan. Their extensive network and expertise make them a go-to for anyone looking at the list of overseas employment agencies in Pakistan. As a leading foreign jobs recruitment agency in Pakistan, they offer opportunities across various sectors.
Delta International is consistently listed among the top recruitment companies in Pakistan, known for providing the best recruitment services. It’s considered one of the best recruitment agencies in Pakistan and a prominent recruitment agency in Pakistan. The company excels in international recruitment, making it a key player among international recruitment agencies in Pakistan.
Their inclusion in the list of international recruitment agencies further attests to their excellence. As a top manpower agency in Pakistan, Delta International specializes in recruiting skilled professionals and labor for various industries, including construction, healthcare, IT, engineering, and hospitality.
Delta International is a leader among recruitment agencies in Pakistan, with a particular focus on overseas employment. They are one of the foremost overseas employment agencies in Pakistan, catering to technical jobs and other employment opportunities. Their role as overseas employment promoters highlights their commitment to connecting Pakistani talent with global opportunities.
In summary, Delta International is not only one of the best recruitment agencies in Pakistan but also a distinguished name among overseas employment agencies. Their extensive network and experienced recruiters make them a top choice for anyone seeking employment both locally and internationally.