#mpa-b

[sunrisesnowfall]

i fucking hate the preds truly

[postseasons]

i think this game is actually going to make me throw up/explode/die

[bumblebeeappletree]

We have deployed 2000 structures to patch up a reef in Indonesia and the results were immediate!

🪸 To support our work you can become a member here: https://mossy.earth

To build this project from the ground up we needed the stability of the constant support that our members give us. Nothing we do is possible without you. We hope you will consider joining us in creating more coral reefs!

🙌 And if you are already a member you can pay for an extra structure (or more!) to be deployed here: https://www.mossy.eart...

MOSSY EARTH MEMBERSHIP

===============================

The rewilding membership that restores nature across a wide range of ecosystems.

🌲 Support a diversity of ecosystems

🐺 Rewild habitats to bring back biodiversity

🦫 Fund neglected species & ecosystems

Learn more and become a member here: https://mossy.earth

⏱️TIMESTAMPS⏱️

===============================

0:00 Intro

1:00 Our project area

4:20 First deployment

9:08 Boat name

9:50 Zip ties!

12:10 Scaling up

🔎 ABOUT THIS PROJECT

===============================

Coral reefs are known as “the rainforests of the sea”. These vibrantly complex ecosystems harbour the highest biodiversity of any ecosystem globally. An estimated 25% of all marine species depend on reefs. They are also crucial for millions of people, providing food, livelihoods, resources and coastal protection.

Major threats, such as over-exploitation and climate change, are jeopardising the future of coral reefs. In the last few decades, sharp declines in reef cover have occurred worldwide. This is our first coral reef project to restore damaged reefs in the northern waters of Nusa Penida, Indonesia.

Our long-term goal is to improve resilience by enhancing connectivity of fragmented reefs whilst protecting and preserving endangered coral species. Led by our local team of expert divers and marine biologists passionate about the preservation of this marine ecosystem, we work with local people to promote positive community involvement in coral reef restoration.

Read more about this project here: https://www.mossy.eart...

CREDITS

===============================

This project is managed by Purnomo Yudhianto, Ellie Jackson-Smith

and Chansa Hilmira

Filming: Julie Schleiss-Andreassen, Duarte de Zoeten, Purnomo Yudhianto and Chansa Hilmira

Writing: Duarte de Zoeten

Editing: Duarte de Zoeten and Thomas Hikin

Scoring: Charlie Hernández

📄 REFERENCES

===============================

Bachman, S. D., Kleypas, J. A., Erdmann, M., & Setyawan, E. (2022). A global atlas of potential thermal refugia for coral reefs generated by internal gravity waves.

Boakes, Z., Hall, A. E., Ampou, E. E., et al. (2022). Coral reef conservation in Bali in light of international best practice: A literature review.

Bowden-Kerby, A. (2023). Coral-Focused Climate Change Adaptation and Restoration: The "Reefs of Hope" Paradigm.

Bruno, J. F., & Selig, E. R. (2007). Regional decline of coral cover in the Indo-Pacific: Timing, extent, and subregional comparisons.

Fox, H., Mous, P. J., Pet, J. S., et al. (2005). Experimental assessment of coral reef rehabilitation following blast fishing.

García-Baciero, A., García-Herrero, A., Horcajo-Berná, E., & Clements, G. R. (2024). The Art of Sticking: Attaching Methods Affect Direct Transplantation Success.

Islam, M. S., Islam, A. R. M. T., Ismail, Z., et al. (2023). Effects of microplastic and heavy metals on coral reefs: A new window for analytical research.

Lamont, T. A. C., Razak, T. B., Djohani, R., et al. (2022). Multi-dimensional approaches to scaling up coral reef restoration.

Lange, I. D., Razak, T. B., Perry, C. T., et al. (2024). Coral restoration can drive rapid reef carbonate budget recovery.

Paxton, A. B., Shertzer, K. W., Bacheler, N. M., et al. (2020). Meta-Analysis Reveals Artificial Reefs Can Be Effective Tools for Fish Community Enhancement.

Ruchimat, T., Basuki, R., & Welly, M. (2013). Nusa Penida Marine Protected Area (MPA) Bali - Indonesia: Why Need to be Protected?.

[nczaversnick]

Alphabet Write Tag

Thanks to @honeybewrites for the tag!

Rules: For every letter of the alphabet, comprise a sentence/short paragraph beginning with that letter

This is gonna be a doozy guys. All from Project Gemini, but pulled from various drafts.

A: And with these results that we’ve calculated, we’re able to connect the final piece in better understanding, diagnosing and healing our patients.”

B; Blip. He tiredly swiped his badge in front of a small, wall-mounted monitor.

C: “Clock out for break.”

D: “Did they not teach you anything about being a ‘good representative of Utristan’ zombie while you were in basic, Private,” he smirked, keeping his voice low.

E: Even after scoring high on the ASAPT exam and being a perfect personality match for his career path, it still took numerous recommendations from teachers and summer volunteer mentors for the school to even consider his application.

F: “From what I’ve seen, I think you’re doing pretty well for yourself.

G: Gemini felt his eyebrow twitch slightly, but he kept his facial expression as neutral as possible, “No need to be.”

H: He turned to him and gave a sympathetic smile, “That’s my cue. Hang in there, Álvarez.”

I: It almost felt lonesome seeing as there really was no need for physical visitors since each room had large screens bolted to the wall opposite of the patients, the surface plastered by faint, glitching images of doctors or presumably loved ones.

J: “Just pay for my dinner.”

K: “Kinda need to get my head in the game, though. I’m just ready to start flying already, you know?”

L:“Listen, I know I’m the worst, but you’re probably just going to be with Bruno for most of the time anyway.”

M: “May I have your attention, please? The MPA-0312 Antiquitrain for the 17:09 CrossCountry service to Dreake will arrive shortly. For the safety of yourself and our other guests, please remain behind the turnstile until the antiquitrian has come to a complete stop.”

N: Naturally, he whipped his head up and around to scan the crowd, but to no avail.

O: “Open your fucking eyes, Audrey,” he suddenly yelled at her.

P: PA: “It’s a wonderful Wednesday evening with a warm temperature of 24 degrees Celsius, perfect for downtown mingling!

Q: Quinn’s eyes widened. They opened their mouth to rebut, but Lucia stopped them with a chuckle.

R: “R-Right,” he quivered.

S: “So, I’m guessing you heard about what happened?”

T: The figure kept a firm press on his chest, which limited his struggles.

U: Unknown, Titania District

V: “Very Important. Understand?”

X: Xenovia, Titania District

Y: “You can because I’m giving it to you, and I’m not really giving you a choice about it,” she smiled and, before he could say anything, took his hand and placed the tablet flat in his palm.

Z: “Zodiacs. That's what they're called.”

Tagging: @wyked-ao3 @kittrrrr @zackprincebooks @the-ellia-west

[squidsquadlove]

T*mpa B*y I really really really really hate you but I'mma need you to get your shit together please. Bagel? Stammer? Some Guy? C'mon. Get with it and score at least 3 more than the Fl*mes do in the third.

[labtroncc]

Tabletop Laboratory Autoclave

Labtron Tabletop Laboratory Autoclave is a portable, computer-controlled class B unit with a 35L capacity. It effectively sterilizes HIV, HBV, mad cow virus, and bacillus with a sterilization pressure of 0.22 MPa and a temperature range of 105–134 °C. Safety features include automatic shutoff, cold air discharge, and protection against high temperatures and pressure.

[coldcrypt]

probs gonna log out of here bc I dont wanna be back thinking its ok to do drugs to suppress appetite or pick up vaping. Haven't vaped in a month, haven't had meth in over 4 months, haven't b/p I think in around the same length of time. Dont wanna get hooked back into hoarding thinspo or haunting mpa and feeling it change my brain. Dont wanna get back to being obsessed with being emaciated just because I've cut down on drink again. Going to rehab probs in a month or two and dont just want to go back to mia behaviours. If I'm gonna cross-addict into something I wanna get fit I think. I wanna be thin maybe if I'm really this stupid I'll just move more into an ortho social media space. Not that that's really more sustainable but at least its socially acceptable right

[reidio-silence]

A quiet neighborhood up to the 1960s, East Boston too had been roused by a populist movement marshaled to defend against powerful outside forces. The defense of East Boston turf had been going on well before 1974, not against desegregation but against the Massachusetts Port Authority (MPA) and nearby, expanding Logan Airport. The community had been fighting battles against airport noise, air pollution, and truck traffic, and already had lost three parks comprising seventy acres of recreational space as well as over one thousand units of housing. In September 1968 some six hundred heavy trucks a day began pounding through Maverick Street, “an old, densely populated street lined with homes,” to and from the airport. This sparked a spontaneous protest, and grandmothers and housewives with baby carriages barricaded the street. State police cleared the roadblock, but by early October the governor and mayor announced the trucks would use an alternate route.

East Bostonians then joined a new organization—The Greater Boston Coalition (GBC)—to lobby to stop highway expansion. Massport renewed its efforts in East Boston in February 1969, but after an April “surprise attack” by the MPA on one tree-lined street, residents pulled down a construction fence and their state representative, George DiLorenzo, got himself arrested. That night 250 residents met and cheered every mention of civil disobedience. The latter soon took the form of activists using their cars to slow traffic to a crawl on arteries leading to the congested airport. While the GBC eventually won its struggle to arrest highway construction, Eastie’s wars with Logan continued into the 1970s.

The veterans of wars with Massport and highways did not move over wholesale into antibusing. One of them, for example, Monsignor Mimie B. Pitaro, initially led a fight against the patronage-ridden administration of the federal poverty program in East Boston. His devotion to the neighborhood and enthusiasm in the struggle against Massport led local citizens to elect him to the state legislature in 1970, the first Catholic priest ever so honored in the state’s history. But Pitaro refused to vote against the Racial Imbalance Act, which led to his defeat for reelection in 1972.

Busing created a deep split in East Boston. Some of Pitaro’s former allies worked to implement the court orders or distanced themselves from militant antibusers. Some were antibusing and the Massport-highway wars had toughened them: “Anyone who is still living here after the loss of Wood Island Park, noise of Logan Airport, and the smells from the oil tanks and large trucks,” wrote one mother to Judge Garrity, “is never going [to move or to bus]. As a life-long resident you will not tell me what to do with my children.” Already East Bostonians had joined demonstrations against the Racial Imbalance Act and the district had voted heavily for hard-liners on the school committee.

— Ronald P. Formisano, Boston Against Busing (1991)

[softrobotcritics]

Magnetoactive liquid-solid phase transitional matter

https://www.cell.com/matter/fulltext/S2590-2385(22)00693-2#articleInformation

Magnetically actuated miniature machines can perform multimodal locomotion and programmable deformations. However, they are either solid magnetic elastomers with limited morphological adaptability or liquid material systems with low mechanical strength. 

Here, we report magnetoactive phase transitional matter (MPTM) composed of magnetic neodymium-iron-boron microparticles embedded in liquid metal. MPTMs can reversibly switch between solid and liquid phase by heating with alternating magnetic field or through ambient cooling. 

In this way, they uniquely combine high mechanical strength (strength, 21.2 MPa; stiffness, 1.98 GPa), high load capacity (able to bear 30 kg), and fast locomotion speed (>1.5 m/s) in the solid phase with excellent morphological adaptability (elongation, splitting, and merging) in the liquid phase. We demonstrate the unique capabilities of MPTMs by showing their dynamic shape reconfigurability by realizing smart soldering machines and universal screws for smart assembly and machines for foreign body removal and drug delivery in a model stomach.

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Printing ferromagnetic domains for untethered fast-transforming soft materials.Nature. 2018; 558: 274-279https://doi.org/10.1038/s41586-018-0185-0View in Article

Magnetic/pH-sensitive double-layer microrobots for drug delivery and sustained release.Appl. Mater. Today. 2020; 19: 100583https://doi.org/10.1016/j.apmt.2020.100583View in Article

Triple-configurational magnetic robot for targeted drug delivery and sustained release.ACS Appl. Mater. Interfaces. 2021; 13: 45315-45324https://doi.org/10.1021/acsami.1c14610View in Article

Recent progress in flexible tactile sensor systems: from design to application.Soft Sci. 2021; 1: 3https://doi.org/10.20517/ss.2021.02View in Article

A brief review of mechanical designs for additive manufactured soft materials.Soft Sci. 2021; 2: 2https://doi.org/10.20517/ss.2021.22View in Article

Tattoo-like epidermal electronics as skin sensors for human machine interfaces.Soft Sci. 2021; 1: 10https://doi.org/10.20517/ss.2021.09View in Article

A brief review on miniature flexible and soft tactile sensors for interventional catheter applications.Soft Sci. 2021; 2: 6https://doi.org/10.20517/ss.2022.05View in Article

Endoscopy-assisted magnetic navigation of biohybrid soft microrobots with rapid endoluminal delivery and imaging.Sci. Robot. 2021; 6: eabd2813https://doi.org/10.1126/scirobotics.abd2813View in Article

Reconfigurable magnetic liquid metal robot for high-performance droplet manipulation.Nano Lett. 2022; 22: 2923-2933https://doi.org/10.1021/acs.nanolett.2c00100View in Article

Reconfigurable magnetic slime robot: deformation, adaptability, and multifunction.Adv. Funct. Mater. 2022; 32: 2112508https://doi.org/10.1002/adfm.202112508View in Article

Hard-magnetic liquid metal droplets with excellent magnetic field dependent mobility and elasticity.J. Mater. Sci. Technol. 2021; 92: 60-68https://doi.org/10.1016/j.jmst.2021.04.004View in Article

Programmable digital liquid metal droplets in reconfigurable magnetic fields.ACS Appl. Mater. Interfaces. 2020; 12: 37670-37679https://doi.org/10.1021/acsami.0c08179View in Article

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Swarming microdroplets to a dexterous micromanipulator.Adv. Funct. Mater. 2021; 31: 2011193https://doi.org/10.1002/adfm.202011193View in Article

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Octopus arms exhibit exceptional flexibility.Sci. Rep. 2020; 10: 20872https://doi.org/10.1038/s41598-020-77873-7View in Article

Beyond muscles: role of intramuscular connective tissue elasticity and passive stiffness in octopus arm muscle function.J. Exp. Biol. 2021; 224: 242644https://doi.org/10.1242/jeb.242644View in Article

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Thermoset shape memory polymer variable stiffness 4D robotic catheters.Adv. Sci. 2022; 9: e2103277https://doi.org/10.1002/advs.202103277View in Article

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Article info

Publication history

Published: January 25, 2023

Accepted: December 5, 2022

Received in revised form: October 28, 2022

Received: August 18, 2022

[usafphantom2]

Newest U.S. Navy aircraft carrier arrives in Norway, generating discontent from Russia 🇷🇺

Fernando Valduga By Fernando Valduga 05/26/23 - 08:07am in Military

The USS Gerald R. Ford (CVN 78), the newest and most advanced U.S. Navy aircraft carrier, arrived in Oslo, Norway, as part of its planned visit to the port on May 24.

During the visit of the USS Gerald R. Ford, which marked the first visit of a U.S. aircraft carrier to Norway in 65 years, the ship held a reception in Oslo to honor the U.S.-Norway relationship, welcoming local authorities and important leaders.

Prior to arrival, the Gerald R. Ford Strike Group (GRFCSG) integrated Her Majesty's Ship Norwegian (HNoMS) Roald Amundsen (F311) as GRFCSG Surface War Commander, demonstrating strong interoperability between the U.S. Navy and the Royal Norwegian Navy.

“Norway is a strategic partner in ongoing efforts to maintain a safe and stable Arctic and North Atlantic region that benefits global order,” said Rear Admiral Erik J. Eslich, commander of Carrier Strike Group 12.

PLEASE TAP RELOAD TO VIEW👆

"We are committed to our NATO ally and promoting our strong relationship built on a basis of shared values, experiences and vision," he added.

However, as press reports indicate, Russian authorities criticized the aircraft carrier's visit during the stopover, referring to it as "illogical and harmful".

“There are no issues in the North that require a military solution, nor issues that require external intervention,” Russian embassy spokesman Timur Chekanov told AFP by email.

“Considering that Oslo admits that Russia does not represent a direct military threat to Norway, such demonstrations of force seem illogical and harmful,” he added.

As the leading Ford-class ship, the CVN 78 represents a step forward in the Navy's global power projection capabilities, as demonstrated during combat system qualification tests.

Featuring 23 new technologies, including the electromagnetic aircraft launch system, stop equipment and weapon lifts, Ford-class aircraft carriers allow higher assorted rates with a 20% reduction in crew size compared to Nimitz-class aircraft carriers.

Since the departure from Norfolk, Virginia, on May 2, Gerald R. Ford has been involved in training, exercises and joint and combined operations aimed at mitigating maritime safety risks in the upper northern region, in response to increased activity in the area.

Tags: Military Aviationaircraft carriersUSN - United States Navy/U.S. Navy

Fernando Valduga

Fernando Valduga

Aviation photographer and pilot since 1992, has participated in several events and air operations, such as Cruzex, AirVenture, Daytona Airshow and FIDAE. He has works published in specialized aviation magazines in Brazil and abroad. Uses Canon equipment during his photographic work around the world of aviation.

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[ahoist]

how the hell we gonna let t*mpa b*y beat us

[squidsquadlove]

not just one but TWO points!! GOD that was satisfying, I hate T*mpa B*y SO MUCH, SO SO MUCH, and Canner kissed that goalie, yay

[darko-china]

Efficient Roller Press Solutions

What is a roller press used for?

The roller press, also known as a squeeze mill, roller mill, or double roller machine.A roller press is a grinding device used in industrial applications, particularly in cement production. It consists of two counter-rotating rollers that compress and grind the material. This process significantly reduces the particle size of the material, making it an efficient alternative to traditional grinding methods.

The roller press has high grinding efficiency, low energy consumption, and high output, making it widely used in the cement industry. However, during operation, various issues arise due to factors such as design, usage, and external conditions. These problems lead to poor working conditions, inadequate feed control, and hydraulic system failures, all of which negatively affect the performance of the roller press. To address these challenges, we analyze the root causes and implement improvements across multiple aspects, including design and usage. As a result, we optimize the modification process, enhance efficiency, and achieve better operational results.

 

I.Role of the Roller Press in Cement Plants

In cement plants, operators use the roller press to grind clinker and other raw materials into fine powder. Typically, they employ it alongside other grinding systems, such as ball mills, to enhance overall efficiency and reduce energy consumption. Furthermore, the roller press's capacity to manage high pressure and produce fine products makes it an essential component of modern cement production.

 

II.Differences Between Roller Press and Ball Mill

The primary difference between a roller press and a ball mill lies in their grinding mechanisms. A roller press compresses the material between two rollers under high pressure, resulting in lower energy consumption and higher efficiency. In contrast, a ball mill relies on the impact and friction of balls to grind the material, which typically consumes more energy. Therefore, roller presses usually perform better in terms of energy efficiency and product fineness.

 

III.Skew Issues in Roller Presses

Skew refers to the misalignment between the rollers of the roller press and may arise from mechanical wear or improper installation. This misalignment can lead to uneven pressure distribution, which ultimately reduces grinding efficiency. Therefore, regular maintenance and proper alignment are crucial for minimizing skew and ensuring the optimal performance of the roller press.

 

IV.Analysis of Issues with Roller Presses

1. Fine Powder Content at the Outlet

The fine powder content at the outlet of the roller press, also known as first-pass yield, directly reflects the effectiveness of the pressing process. However, many companies overlook this critical aspect. Testing samples from various enterprises revealed that the German BHS roller press achieved an outlet fineness of 33% on a 0.9mm sieve and 64% on a 0.08mm sieve (with 36% below 0.08mm). In contrast, many of these machines do not reach similar results.

2. Working Pressure

The pressing force is the most fundamental parameter determining the effectiveness of the roller press. To calculate the total force F (in kN) of the roller press, we use the formula:

F=n⋅S⋅Pr ​

where:

n= number of hydraulic cylinders

S= effective area of the hydraulic cylinder (m²)

Pr​ = hydraulic system pressure (MPa)

Moreover, the average roller pressure Pcp(in kN/m²) is given by:

​

Pcp=2F/D⋅B⋅sinα

​

Here:

D = diameter of the grinding roller (m)

B = effective width of the grinding roller (m)

α = pressure angle, also known as the bite angle (°)

Projected Pressure Calculation

In addition, the projected pressure PT (in kN/m²) is calculated using:

PT​=F/B⋅D

​

Impact of Maximum Roller Pressure on Pressing Efficiency

In practice, the maximum roller pressure significantly affects the pressing effect. Specifically, when the line connecting the centers of the two rollers is set at 0 degrees, the pressure angle starts at 8.3 degrees and ends at -1.6 degrees. Notably, the maximum peak pressure occurs at 1.5 degrees, slightly exceeding twice the average pressure.

Moreover, the hydraulic system of the roller press plays a crucial role, as it provides the dynamic roller pressure necessary to compress the material. This system consists of various components, including the oil station, hydraulic cylinders, nitrogen bags, solenoid valves, overflow valves, pressure gauges, oil lines, and control cabinet. If the configuration lacks damping adjustment valves and stroke adjustment valves, it cannot achieve optimal pressing results. Therefore, in some cases, adding small nitrogen bags may prevent the displayed pressure from accurately reflecting actual pressure changes.

Nitrogen Bag Configuration and Pressure Management

The size of the nitrogen bags and the piping must be calculated based on the size of the hydraulic cylinders. Furthermore, using pipes that are too small will increase resistance. In a parallel setup, when one large and one small nitrogen bag are used, the small bag activates first, followed by the large bag. As a result, this process repeatedly suppresses the opening of the roller gap, which operates in a cycle of retracting, retracting, and advancing, ultimately resulting in low pressing efficiency.

Moreover, the pressures of the nitrogen bags are set at 8, 10, and 12 MPa, meaning that only one nitrogen bag operates within a specific range while the other two become ineffective. Although this theory of differential pressure was initially proposed by German engineers, it failed to achieve the expected results due to significant variations in material properties. Consequently, the Germans did not pursue this approach further.

In general, it is advisable to set the nitrogen bag pressure at 60-80% of the system’s minimum pressure. This approach ensures that when the system operates at its lowest working pressure, a certain level of safety is maintained between the nitrogen bags and the on-off valve. However, the system’s operational state must be monitored on-site to determine its effectiveness. If the oil temperature is too high or too low, it indicates that the system is not in good working condition, which severely impacts pressing efficiency.

 

3. Roller Speed

The roller speed of the roller press can be expressed in two ways: one is the circumferential linear speed V of the rollers, and the other is the rotational speed of the rollers. The circumferential linear speed is related to output, power consumption, and operational stability. Generally, higher roller speeds lead to increased output; however, excessively high speeds can cause greater relative sliding between the rollers and the material, resulting in poor engagement and increased wear on the roller surfaces, which negatively impacts the output of the roller press.

Currently, the typical roller speed ranges from 1.0 to 1.75 m/s, with some experts suggesting that it should not exceed 1.5 m/s. The linear speed of the rollers usually falls between 1.0 and 1.7 m/s, with most operating around 1.5 to 1.7 m/s, and some even reaching 2.0 to 2.2 m/s. It is crucial to prioritize the squeezing effect when selecting the speed; this effect should be based on actual sampling. If the speed is too high, the pressing time shortens, leading to increased vibrations in the equipment. The significant variations in force become difficult to control, resulting in excessive power consumption without achieving the desired pressing effect.

4. Operating Gap and Material Properties

The operation of the roller gap is influenced by various factors, including the properties of the material (such as hardness, particle size, and moisture content), the form of the roller surface, the speed, the pressure, and the pressure control method. There are two ways to control the hydraulic cylinder pressure: constant pressure control and constant gap control. However, regardless of the method used, both are fundamentally flawed from a hydraulic perspective because pressure and gap continuously fluctuate.

The pressure gauge has a response time of 200 milliseconds, which complicates the control of the oil pump's pressure adjustments. This, in turn, affects the hydraulic cylinder pressure and subsequently the roller gap. As a result, there are two main issues: first, there is a lag in response; second, excessive pressure differentials occur. These factors hinder the stable operation of the roller press and negatively impact pressing efficiency.

5. Feeding Device

Currently, most roller presses use a feeding device that directs material straight from the hopper into the roller gap, pulling the material between the two rollers. This process is commonly referred to as the "pull-in angle" of the roller press. However, controlling the flow from two directions is not feasible, as the adjustment range is limited, making it difficult to achieve precise and stable control. Additionally, the other two directions cannot be adjusted at all. As a result, issues such as material segregation and roller misalignment frequently occur, leading to unmanageable conditions.

V.Roller Press System Modification Plan

1. Replacement of Feeding Device

Replace the roller press feeding device with a new type of four-direction feeding system (patented technology) to control the material feed. This system allows for adjustment and control from two directions, enabling reasonable control of material flow. The other two directions can be adjusted to correct the lateral gap deviation between the rollers, reducing the impact of the material on the roller press and facilitating the formation of a stable material bed. This approach eliminates issues such as material segregation and roller misalignment, and it operates at a low hopper position, making it easier to adjust and control.

2. Upgrading the Hydraulic System

We replaced the hydraulic system of the roller press, including components such as the oil station, overflow valve, pressure gauge, accumulator (nitrogen bag), and valve assembly. Additionally, we incorporated damping adjustment valves and stroke adjustment valves (patented technology) to make the hydraulic system flexible, rigid, and controllable.

During the research and development process, we conducted extensive field tests using a specialized high-precision pressure measurement device (1000 Hz) to collect and analyze data. We employed dedicated simulation software and complex mathematical models to successfully develop a dual-channel adjustable damping anti-vibration regulation mechanism, achieving a reasonable balance of rigidity and flexibility in the hydraulic system.

3. Implementing PLC Control

We replaced the roller press hydraulic PLC and implemented four-directional control of the feeding device, utilizing a constant power control method for easier centralized operation. We configured the system with Siemens SIMATIC S7-1200, integrating Siemens SINAMICS drive products and SIMATIC human-machine interface products. The CPU comes standard with an Ethernet interface that supports various industrial Ethernet communication protocols, including PROFINET, TCP, UDP, and Modbus TCP.

Our company developed this technology through mathematical modeling, gathering extensive field data during the research and development process. We employed specialized simulation software and complex mathematical models, which have been validated through practical application.

 

VI.Case Studies

1. Chao Lake Hengxin Cement Co., Ltd.

Since the modification in August 2020, production efficiency has increased from 200 tons/hour to 290 tons/hour, with energy consumption controlled at 22 kWh/ton of cement.

2. Hainan Huaren Cement

In June 2022, the roller press was upgraded, increasing hourly output from 150-160 tons to 180-200 tons, with energy consumption reduced to about 23 kWh/ton.

3. Guizhou Southwest

Through the upgrade, output has risen to 180-190 tons/hour, and energy consumption decreased from 32 kWh/ton to 25 kWh/ton.

4. Jiangxi Sanqing Cement Co., Ltd.

After the modification, the output increased to 270-280 tons/hour, with stable operation and nitrogen bag temperatures maintained at 40-60°C.

 

VII.Benefits of Roller Press Technology Upgrade and Modification

The stability of the roller press has improved, with virtually no side leakage. There are three methods for adjusting roller skew: first, four-directional feed adjustment; second, hydraulic system adjustments; and third, separate pressure adjustments for left and right. Control is stable, with minimal occurrences of material collapse and roller skew.

The hydraulic system of the roller press is flexibly adjustable and controllable. The fluctuation of the roller gap has changed from slow retraction and fast advance to fast retraction and slow advance, increasing pressing efficiency. The fine powder content at the roller press outlet has increased by 3-7%, the specific surface area of the input material has improved, and hourly output has increased by 10-20%.

A constant power control method is used, with operational power maintained at 85±5% of the rated power. The efficiency of the roller press has two requirements: first, high operational power; second, high first-pass yield. By improving the efficiency of the roller press and reducing mill power consumption, the overall energy consumption has been lowered by 2-5 kWh/ton.

If you have needs regarding the modification and upgrading of roller press systems, please feel free to contact us at Darko. We will provide you with professional solutions and support.

[amandxddx]

La zona Let-Vand

SECCIÓN 1: La Fosa Abisal de Hadal

La Zona Let-Vand es una anomalía geofísica descubierta en las profundidades del océano Atlántico, al este de Islandia en el Mar de Noruega. Su existencia fue revelada accidentalmente en 1961, tras el hundimiento de un carguero de clase B, "█████████", cuyas circunstancias no fueron completamente esclarecidas. La expedición de recuperación subsecuente, operada por equipos especializados, reveló una fosa abisal previamente desconocida, cuya profundidad supera los 76,400 studs (equivalente a aproximadamente 21,3 km). Para poner esta profundidad en perspectiva, supera en más de dos veces la profundidad de la fosa de las Marianas, el punto más bajo conocido en la corteza terrestre, y se acerca a la frontera entre la corteza oceánica y el manto superior terrestre. A diferencia de otras fosas oceánicas, la fosa abisal de hadal es notablemente ancha, extendiéndose por varios cientos de kilómetros y presentando una estructura irregular con cañones laterales, crestas submarinas y áreas de sedimento denso.

La fosa de Hadal recibe su nombre de la región "Hades", en la mitología griega, que simboliza el inframundo, el reino de los muertos. Esta denominación refleja la oscuridad y lo inexplorado de las profundidades oceánicas, donde la luz nunca llega. La fosa de Hadal es la más profunda de todas las zonas hadales, lo que la convierte en el lugar más bajo y misterioso del océano, un abismo en el que la presión, la oscuridad y la inaccesibilidad la han aislado de la superficie. El descubrimiento de la fosa abisal se mantuvo en secreto debido a la magnitud de las implicaciones geofísicas y biológicas que podría acarrear.

Por encima de los 67,320 studs, las condiciones en la fosa son similares a las encontradas en otras regiones hadales: temperaturas que rondan los 1-3 °C y una oscuridad absoluta, rota únicamente por la ocasional bioluminiscencia de criaturas adaptadas a la presión aplastante del entorno. A estas profundidades, la presión alcanza magnitudes inimaginables, excediendo las 1,100 atmósferas (más de 100 MPa) en algunos puntos por encima del velo de Let-Vand, lo que normalmente destruiría cualquier forma de vida terrestre o equipo no especializado. En el vasto fondo de la fosa abisal de hadal, se pueden encontrar nodos minerales naturales esparcidos a lo largo de la región. Estos nodos, que se extienden por vastas áreas de la fosa, están saturados de minerales preciosos como el cobre, el zinc y el manganeso, junto con depósitos de petróleo y gas que se encuentran en estado casi puro.

SECCIÓN 2: La Anomalía de la Zona Let-Vand

La zona Let-Vand, situada a 67,320 studs de profundidad (18.84 kilómetros), es un fenómeno anómalo sin precedentes en la oceanografía moderna que sucede en la fosa abisal de hadal. El límite de esta zona, conocido como "el Velo de la zona Let-Vand", marca una transición abrupta en la presión del agua. Mientras que la presión en este punto debería ser suficiente para comprimir cualquier estructura orgánica o inorgánica, se observa un fenómeno inexplicable: al cruzar este umbral, la presión disminuye instantáneamente a niveles comparables a los de una piscina al nivel del mar, aproximadamente 1 atmósfera. El Velo de la zona Let-Vand es una barrera invisible de 800 metros, pero tangible, que separa las condiciones de alta presión de la parte superior de la fosa de la región de baja presión situada debajo. Esta línea es una transición de fuerza devastadora: intentar cruzar el Velo sin el equipo adecuado provocaría la implosión inmediata de cualquier objeto o ser vivo, debido al cambio drástico de presión. El agua en esta región es sorprendentemente liviana, con densidad y presión equivalentes a las que se encuentran en aguas superficiales. Esto significa que, a pesar de la profundidad abismal, los buceadores equipados únicamente con equipos de buceo básicos (sin necesidad de trajes de alta presión) pueden nadar sin riesgo de implosión. Este entorno ha sido descrito como "antinatural", pero las muestras de agua no muestran diferencias químicas notables en comparación con el agua de mar común.

Aunque el presente documento no abordará en detalle la biodiversidad específica que habita en la zona Let-Vand, no podemos evitar mencionar, siquiera de manera superficial, los fascinantes hallazgos preliminares. De alguna forma inexplicable, ciertos organismos han logrado cruzar el velo y, en lugar de sucumbir, han evolucionado para prosperar en el entorno de baja presión que proporciona el interior de la Let-Vand. Los registros actuales confirman la presencia de artrópodos, equinodermos, moluscos y esponjas, todos ellos exhibiendo adaptaciones que aún no logramos comprender del todo. Se cree que las aguas de la Let-Vand albergan una biodiversidad mucho más vasta de lo que se ha documentado, posiblemente oculta en las sombras de cañones submarinos y entre densas formaciones de sedimento.

Aunque la zona es conocida por su ambiente inerte y casi desolado, su ecosistema está alimentado por un proceso continuo y vital: la nieve marina. Esta nieve, compuesta por partículas microscópicas que se desprenden de las capas superiores del océano, se desplaza lentamente hacia las profundidades, proporcionando una fuente constante de nutrientes a las formas de vida que habitan en la fosa.

[hethongnhakhoavenus]

Dịch Vụ Bọc Răng Sứ Thẩm Mỹ Long Thành, Đồng Nai

Giới thiệu về Dịch Vụ Bọc Răng Sứ Thẩm Mỹ tại Nha Khoa Venus Long Thành, Đồng Nai

Khi nhắc đến dịch vụ bọc răng sứ thẩm mỹ, nhiều người nghĩ ngay đến sự cải thiện đáng kể về ngoại hình và sức khỏe răng miệng. Tại Nha khoa Venus Long Thành, Đồng Nai, bọc răng sứ không chỉ đơn thuần là một giải pháp làm đẹp, mà còn giúp phục hồi chức năng ăn nhai, bảo vệ răng và nâng cao sự tự tin trong giao tiếp. Bài viết dưới đây sẽ giúp bạn hiểu rõ hơn về dịch vụ bọc răng sứ Long Thành tại Nha khoa Venus thông qua những phân tích chuyên sâu, số liệu thực tế và những lợi ích thiết thực của việc bọc răng sứ.

1. Lợi Ích Của Bọc Răng Sứ Thẩm Mỹ tại Venus Long Thành

Khôi phục chức năng ăn nhai: Một trong những lợi ích rõ rệt nhất là khả năng cải thiện chức năng nhai. Theo nghiên cứu, hơn 60% khách hàng sau khi bọc răng sứ cho biết họ có thể nhai dễ dàng hơn và không còn cảm giác đau nhức khi ăn. Điều này là nhờ vào sự kết hợp giữa mão sứ chất lượng cao và quy trình chế tác chính xác của Nha khoa Venus.

Ngăn ngừa bệnh lý răng miệng: Bọc răng sứ đóng vai trò như một lớp bảo vệ cho răng thật, giúp giảm thiểu nguy cơ sâu răng, viêm tủy hay viêm nướu. Thống kê từ Hiệp hội Nha khoa Việt Nam cho thấy, có đến 70% trường hợp răng sâu hoặc nứt sau khi bọc sứ được bảo vệ khỏi sự tấn công của vi khuẩn.

Cải thiện thẩm mỹ và độ bền cao: Một hàm răng đều đặn và trắng sáng là điều mà nhiều người ao ước. Tại Venus, các loại răng sứ được nhập khẩu từ Hàn Quốc, Đức, Mỹ với công nghệ chế tác 3D tiên tiến, đảm bảo độ bền từ 5 đến 20 năm, tùy theo dòng sứ. Ví dụ, răng sứ Orodent Venus có độ bền chịu lực lên đến 1400 MPA, giúp đảm bảo hiệu quả nhai tối ưu mà vẫn duy trì được vẻ thẩm mỹ tự nhiên.

2. Quy Trình Bọc Răng Sứ tại Nha Khoa Venus Long Thành

Quy trình bọc răng sứ tại Venus gồm 6 bước cơ bản, đảm bảo tính chính xác và an toàn. Dưới đây là phân tích chi tiết từng bước:

Bước 1: Khám tổng quan và tư vấn điều trị – Ở bước này, bác sĩ sẽ khám tổng quát và tư vấn cụ thể. Theo khảo sát, 95% khách hàng tại Venus đánh giá cao khâu tư vấn này vì được giải đáp kỹ lưỡng về các phương pháp, chi phí và kết quả mong đợi.

Bước 2: Chụp X-quang và lên phác đồ điều trị – Đây là khâu quan trọng giúp bác sĩ đánh giá toàn diện cấu trúc hàm và xác định phác đồ phù hợp. Thời gian chụp X-quang và lập kế hoạch dao động từ 15-30 phút.

Bước 3: Sửa soạn răng – Bác sĩ sẽ mài mỏng lớp răng bề mặt một cách nhẹ nhàng, không gây đau nhờ có thuốc tê. Độ mài chỉ chiếm 0,5 - 1mm, vừa bảo tồn răng gốc vừa tạo điều kiện cho mão sứ gắn khít.

Bước 4: Lấy dấu hàm và thiết kế mão sứ – Bản mẫu 3D sẽ được thiết kế dựa trên dấu hàm của khách hàng để đảm bảo mão răng sứ vừa vặn và tự nhiên nhất.

Bước 5: Gắn mão sứ lên răng – Bác sĩ kiểm tra và điều chỉnh cẩn thận trước khi gắn cố định mão sứ, quá trình này thường mất 45 phút đến 1 giờ.

Bước 6: Tái khám định kỳ – Khách hàng sẽ được hẹn lịch tái khám mỗi tháng để theo dõi và đảm bảo mão sứ hoạt động tốt. Theo thống kê từ phòng khám, tỷ lệ khách hàng hài lòng sau quá trình tái khám đạt đến 98%.

3. Các Loại Răng Sứ tại Venus Long Thành

Răng Sứ Orodent Venus Chính Hãng Italy có lực nhai lên đến 1400 MPA, đảm bảo độ bền vượt trội và vẻ đẹp tự nhiên. Giá cả hợp lý từ 15.990.000 VNĐ/răng, đi kèm chế độ bảo hành 20 năm.

Răng Toàn Sứ Cercon HT (Đức) là lựa chọn phổ biến với lực nhai 1250 MPA, giá 7.790.000 VNĐ/răng, bảo hành 15 năm. Đây là giải pháp tối ưu cho khách hàng mong muốn độ bền và thẩm mỹ tốt với chi phí hợp lý.

Răng Sứ Titan và Kim Loại thích hợp cho người có ngân sách hạn chế. Với giá từ 980.000 VNĐ/răng (răng kim loại) và 1.990.000 VNĐ/răng (răng Titan), đây là giải pháp tiết kiệm nhưng vẫn đảm bảo hiệu quả cơ bản.

4. Lời Khuyên Chuyên Gia

Lựa chọn bọc răng sứ không chỉ đơn thuần là việc làm đẹp mà còn mang tính bảo vệ sức khỏe răng miệng lâu dài. Để đạt được kết quả tốt nhất, hãy lựa chọn phòng khám uy tín và tuân thủ lịch tái khám định kỳ. Với đội ngũ bác sĩ giàu kinh nghiệm như bác sĩ Chu Thành Danh hay bác sĩ Đức Khang, Nha khoa Venus Long Thành cam kết mang đến trải nghiệm bọc răng sứ an toàn và chất lượng.

Bọc răng sứ thẩm mỹ tại Nha khoa Venus Long Thành không chỉ là dịch vụ làm đẹp mà còn là giải pháp chăm sóc răng miệng bền vững. Hãy cân nhắc kỹ để mang đến nụ cười tự tin nhất cho chính mình.

[hotnew-pt]

Painel da Motion Picture Association em Tóquio discute filmagens no Japão #ÚltimasNotícias

Hot News As tecnologias transformacionais e seus impactos na produção cinematográfica, juntamente com a atração crescente e os desafios remanescentes da filmagem no Japão, foram o foco da edição deste ano do seminário da Motion Picture Association (MPA) no Festival Internacional de Cinema de Tóquio. Diante de uma casa lotada, liderando o evento em 30 de outubro estava Edward B. Neubronner da…