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Jameshom

15 Nov 2024 - 12:12 pm

Scientists say skeletal remains found in castle well belong to figure from 800-year-old saga
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Researchers have connected the identity of skeletal remains found in a well at Norway’s Sverresborg castle to a passage in a centuries-old Norse text.

The 800-year-old Sverris saga, which follows the story of the real-life King Sverre Sigurdsson, includes the tossing of the body of a dead man — later known as “Well-man” — down a well during a military raid in central Norway in 1197.
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It’s likely, according to the text, that raiders lobbed the body into the well to poison the main water source for locals, but little else is said about the man or who he was in the saga.

Researchers initially uncovered the bones in the castle’s well in 1938, but they were only able to carry out a visual analysis at the time. Now, scientists have an array of analytical techniques at their disposal, including genetic sequencing and radiocarbon dating.

A new study on the remains, published Friday in the Cell Press journal iScience, reveals unprecedented insights into Well-man’s appearance based on in-depth research on samples of his teeth.

“This is the first time that a person described in these historical texts has actually been found,” said study coauthor Michael D. Martin, a professor in the department of natural history at the Norwegian University of Science and Technology’s University Museum in Trondheim, in a statement.

“There are a lot of these medieval and ancient remains all around Europe, and they’re increasingly being studied using genomic methods.”

The findings not only shed fresh light on what Well-man looked like but also who he was, with a surprising twist about how he ended up in a Norse saga.

Hollisneire

15 Nov 2024 - 11:25 am

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Balanset-1A: Revolutionizing Rotor Balancing

Balanset-1A is a state-of-the-art tool for rotor balancing, developed by Vibromera, designed to optimize the performance of various mechanical systems. Whether you're dealing with crushers, fans, or turbines, the Balanset-1A ensures precision and efficiency in balancing rotors. In this article, we'll explore the key steps involved in the balancing process using the Balanset-1A and discuss the methods used to calibrate balancing equipment.

Understanding the Balancing Process with Balanset-1A

The process of rotor balancing with Balanset-1A involves several meticulous steps:

1. Equipment Preparation

The first step is to prepare the equipment. Vibration sensors are mounted perpendicularly to the rotor's axis of rotation. A laser tachometer, attached to a magnetic stand, is aimed at a reflective tape on the pulley. These sensors are then connected to the Balanset-1A device, which interfaces with a laptop via USB. The Balanset software is launched, selecting the two-plane balancing mode.

2. Initial Vibration Measurement

Before starting the balancing process, a test weight is measured and its weight and installation radius are recorded. The rotor is then run to measure the initial vibration level, determining the amplitude and phase of the initial imbalance.

3. Balancing in the First Plane

The test weight is placed in the first balancing plane, corresponding to the location of the first sensor. The rotor is run again to measure vibration levels. A change in amplitude or phase of at least 20% indicates partial correction of the imbalance.

4. Balancing in the Second Plane

The test weight is moved to the second plane, where the second sensor is located. The rotor is run once more, and measurements are taken. The software uses these measurements to calculate the precise position and weight of corrective masses.

5. Correcting the Imbalance

Based on the data obtained, the Balanset software suggests corrective weights and angles for both planes. The test weight is removed, and corrective weights are prepared and installed at the recommended angles in the rotor's direction of rotation.

6. Verification and Completion

The rotor is run for a final balance check. If the vibration is reduced to an acceptable level, the process is complete. If further correction is needed, the software provides guidance on additional weight placement.

Methods for Calibrating Balancing Equipment

Calibration of balancing equipment is crucial for accurate measurements and results. Here are some common methods:

Static Balancing

This method involves manually rotating the rotor to identify any static imbalance. If a rotor is statically unbalanced, it will rotate to its equilibrium position. A counterweight is then added to maintain stability in any position, reducing vibration during initial runs.

Dynamic Balancing

Dynamic balancing is performed using advanced equipment like Balanset-1A. It involves measuring the rotor's vibration and using corrective weights to balance in two planes, addressing both static and dynamic imbalances.

FFT Spectrum Analysis

Balanset-1A provides FFT (Fast Fourier Transform) spectrum analysis, which offers a detailed view of the vibration frequency spectrum. This analysis helps in identifying the root causes of imbalance, such as harmonic frequencies.

Balanset-1A is equipped with features like a tolerance calculator (ISO 1940) and a visual polar graph representation, ensuring precise weight placement and adherence to international standards.

Conclusion

Balancing rotors is a critical task for maintaining machinery efficiency and longevity. The Balanset-1A, with its comprehensive features and advanced calibration methods, provides an unparalleled solution for both single and two-plane balancing. By ensuring proper calibration and following the outlined steps, operators can achieve optimal performance and reduced downtime, safeguarding their investments in industrial machinery.


Contact Information:

For more information about our Balanset balancing devices and other products, please visit our website: https://vibromera.eu.

Subscribe to our YouTube channel, where you will find instructional videos and examples of completed work: https://www.youtube.com/@vibromera.

Stay updated with our latest news and promotions on Instagram, where we also showcase examples of our work: https://www.instagram.com/vibromera_ou/.
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Stephenvok

15 Nov 2024 - 11:24 am

This teen became the youngest person to summit the world’s highest peaks. Now he wants others to follow in his footsteps
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Nima Rinji Sherpa’s ears are still tinged black from wind chill, an occupational hazard of climbing to heights where humans struggle to breathe, and where the weather can turn deadly in an instant.

This month, Nima became the youngest person to summit all 14 of the world’s highest peaks, but the 18-year-old Nepalese mountaineer is already getting ready for his next big feat.
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Speaking to CNN via video call from the Nepali capital Kathmandu last week, Nima said he’s taking a couple weeks’ rest before preparing to climb the world’s eighth-highest mountain, Manaslu, with Italian mountaineer Simone Moro – in winter, alpine-style.

“That means we’re climbing an 8,000-meter mountain in winter… There’s no fixed ropes for us, there’s no (supplemental) oxygen for us, there is no support for us. So, it’s like pure human endurance,” Nima said. “It has never been done in the history of mountaineering.”

After that, “I’ll take some rest,” Nima laughed.

On October 9, Nima reached the top of the 8,027-meter (26,335-foot) Shishapangma along with his partner Pasang Nurbu Sherpa. For Nima, it was the final of the “eight-thousanders,” the 14 peaks recognized by the International Climbing and Mountaineering Federation as standing more than 8,000 meters above sea level.

Describing the moment of summiting the final peak as “pure joy,” Nima said his motivation comes from his family, many of whom are renowned mountaineers.

His father, Tashi Lakpa Sherpa, has climbed Everest nine times, and at age 19 became the youngest person to summit without bottled oxygen. His uncle Mingma Sherpa became the first South Asian climber to summit the 14 peaks in 2011.

“My uncles and my father, they are way more successful than I would ever be because they came from a very small village. To even dream about being this successful, for them it was really hard,” Nima said. “I have the privilege that they didn’t have.”

Kerrygat

15 Nov 2024 - 11:23 am

He served with the US Army in Iraq. Now he’s one of Asia’s top chefs and a Netflix ‘Culinary Class Wars’ judge
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From a warzone in Iraq to a Michelin-starred kitchen and a hit Netflix show, chef Sung Anh’s path to the top of Asia’s fine dining scene has been anything but ordinary.

“Just like I did in the US Army, where I volunteered to go to the war, wanting to do something different — I decided to come here to Korea to try something different,” says the Korean-American chef and judge on hit reality cooking show “Culinary Class Wars,” which has just been green-lit for a second season.
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Sung, 42, is the head chef and owner of South Korea’s only three-Michelin-starred restaurant, Mosu Seoul. In recent weeks, he has gained a new legion of fans as the meticulous and straight-talking judge on the new Netflix series. It’s this passion and unwavering drive to forge his own path that’s helped reshape fine dining in his birth home.
Born in Seoul, South Korea’s capital, Sung and his family emigrated to San Diego, California when he was 13.

“We were just a family from Korea, seeking the American Dream,” he says. “As an immigrant family, we didn’t really know English.”

As a teen growing up on the US West Coast, his mind couldn’t have been further from cooking.

“I went to school, got into college, but decided to join the US Army because that’s the only way I thought I could travel,” says the chef.

Over four years of service, he trained in bases across the country, before being deployed to his country of birth, South Korea and — following 9/11 — to the Middle East.

Josephscela

15 Nov 2024 - 10:55 am

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15 Nov 2024 - 10:38 am

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15 Nov 2024 - 09:28 am

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15 Nov 2024 - 09:13 am

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15 Nov 2024 - 09:02 am

Scientists say skeletal remains found in castle well belong to figure from 800-year-old saga
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Researchers have connected the identity of skeletal remains found in a well at Norway’s Sverresborg castle to a passage in a centuries-old Norse text.

The 800-year-old Sverris saga, which follows the story of the real-life King Sverre Sigurdsson, includes the tossing of the body of a dead man — later known as “Well-man” — down a well during a military raid in central Norway in 1197.
https://kra16f.cc
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It’s likely, according to the text, that raiders lobbed the body into the well to poison the main water source for locals, but little else is said about the man or who he was in the saga.

Researchers initially uncovered the bones in the castle’s well in 1938, but they were only able to carry out a visual analysis at the time. Now, scientists have an array of analytical techniques at their disposal, including genetic sequencing and radiocarbon dating.

A new study on the remains, published Friday in the Cell Press journal iScience, reveals unprecedented insights into Well-man’s appearance based on in-depth research on samples of his teeth.

“This is the first time that a person described in these historical texts has actually been found,” said study coauthor Michael D. Martin, a professor in the department of natural history at the Norwegian University of Science and Technology’s University Museum in Trondheim, in a statement.

“There are a lot of these medieval and ancient remains all around Europe, and they’re increasingly being studied using genomic methods.”

The findings not only shed fresh light on what Well-man looked like but also who he was, with a surprising twist about how he ended up in a Norse saga.

Terrytex

15 Nov 2024 - 08:10 am

This teen became the youngest person to summit the world’s highest peaks. Now he wants others to follow in his footsteps
kraken onion

Nima Rinji Sherpa’s ears are still tinged black from wind chill, an occupational hazard of climbing to heights where humans struggle to breathe, and where the weather can turn deadly in an instant.

This month, Nima became the youngest person to summit all 14 of the world’s highest peaks, but the 18-year-old Nepalese mountaineer is already getting ready for his next big feat.
https://kra16f.cc
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Speaking to CNN via video call from the Nepali capital Kathmandu last week, Nima said he’s taking a couple weeks’ rest before preparing to climb the world’s eighth-highest mountain, Manaslu, with Italian mountaineer Simone Moro – in winter, alpine-style.

“That means we’re climbing an 8,000-meter mountain in winter… There’s no fixed ropes for us, there’s no (supplemental) oxygen for us, there is no support for us. So, it’s like pure human endurance,” Nima said. “It has never been done in the history of mountaineering.”

After that, “I’ll take some rest,” Nima laughed.

On October 9, Nima reached the top of the 8,027-meter (26,335-foot) Shishapangma along with his partner Pasang Nurbu Sherpa. For Nima, it was the final of the “eight-thousanders,” the 14 peaks recognized by the International Climbing and Mountaineering Federation as standing more than 8,000 meters above sea level.

Describing the moment of summiting the final peak as “pure joy,” Nima said his motivation comes from his family, many of whom are renowned mountaineers.

His father, Tashi Lakpa Sherpa, has climbed Everest nine times, and at age 19 became the youngest person to summit without bottled oxygen. His uncle Mingma Sherpa became the first South Asian climber to summit the 14 peaks in 2011.

“My uncles and my father, they are way more successful than I would ever be because they came from a very small village. To even dream about being this successful, for them it was really hard,” Nima said. “I have the privilege that they didn’t have.”