User blogs
Radiation shielding: MAPbI3/epoxy composites exhibit superior performance
Gamma rays can cause serious damage to the human body. Therefore, it is very important to develop gamma-ray shielding materials with excellent radiation shielding properties. To reach this goal, scientists in China invented a lightweight perovskite/epoxy composite that can effectively attenuate gamma rays by regulating its crystal plane. The technique will open new avenues for the effective mitigation of radiation risks in the aerospace and nuclear industries.Get more news about Shielding material,you can vist our website!
As a result of the rapid development of aerospace and nuclear industries, higher requirements are needed for the service life of detectors and the safety of staff. Gamma rays with extremely short wavelengths and strong penetration would cause serious damage to the detectors and staff. Therefore, gamma ray shielding materials with outstanding radiation shielding performance are essential.
However, the traditional lead shielding material is not suitable for further commercial applications due to its heavy weight and high toxicity. So, alternative lightweight materials with excellent radiation shielding performance that alleviate the radiation risks and reduce the costs have to be found.
In a new paper published in Light: Advanced Manufacturing, a team of scientists, led by Professor Xiaohong Wu from School of Chemistry and Chemical Engineering, Harbin Institute of Technology, China, and co-workers have developed a lightweight MAPbI3/epoxy composite prepared via a crystal plane engineering strategy.
These composites delivered excellent radiation shielding performance against gamma rays that were 10 times higher than the epoxy. MAPbI3 with altered crystal planes plays a determining role in the gamma-ray shielding performance of the corresponding composites.
Crystal plane engineering was shown to be an effective strategy to regulate the electron density of MAPbI3/epoxy composites, thereby controlling the possibility of collision between the incident gamma rays and MAPbI3/epoxy composites. The reported method and technique will open new avenues for designing and developing high-efficiency radiation shielding materials.
These scientists summarize the mechanism whereby crystal plane engineering regulates the gamma-ray shielding performance of MAPbI3/epoxy composites:
"When gamma rays (59.5 keV) reach the MAPbI3/epoxy composites, interaction between the incident gamma ray and the (110) plane or (220) plane induces the photoelectric effect. The electron density of the (110) plane is higher than that of the (220) plane.
Through Conduit Gate Valve
Through conduit gate valve is a sliding valve whose closing parts are parallel gates. The closing member may be a single ram or a double ram with a split mechanism in between.Ram for a rectangular parallel-plate, its open a hole is the same as the channel diameter (with flow guide hole), also don't open hole (not with flow guide hole), the rev, smooth channel for the straight pipe section, low flow resistance coefficient and the pressure loss is small, open and close the gate and seat contact each other all the time, you can wipe the adhesion between the sealing pair particles of dirt, and can make the sealing face protected without being directly eroded by medium.Get more news about through conduit gate valve,you can vist our website!
Through conduit gate valve is suitable for natural gas, petroleum, chemical industry, environmental protection, urban pipeline, gas pipeline and other transportation pipeline, vent system and steam storage device, used as opening and closing equipment.The plate gate valve is driven by manual, gear drive, pneumatic or electric.Flat gate valves are generally flanged or butt welded.
Through conduit gate valve working principle: gate management pressure, the pressure acting on the gate, force plate gate valve gate close to the export of PTFE seat ring, compress it until the ram stops in the steel seat, so, to form a double seal, PTFE is first and foremost to metal seal, and then the metal to metal seal, valve seat is fixed to the grooves, o-ring to prevent any medium flow.After the valve body pressure is released, the inlet seal is formed. The pipe pressure ACTS on the inlet seat and makes it move to the gate plate. At this time, PTFE seals the metal and the o-ring forms a tight seal with the seat groove.
The through conduit gate valve developed and produced by ZhengFeng valve has the characteristics of elastic pre-tightening force, upper and lower sealing seat sealing structure seat at the same time, the seat has self-cleaning function, the valve actuator is independent of the valve and so on. The flow resistance of the slab gate valve is small. The flow resistance of the non-shrink mouth is similar to that of the short tube.The slab gate valve with orifice is installed on the pipeline and can be pigged directly with the pig.
Flexible drive - a variety of drive options, remote control and automation can be achieved.
Stem lengthening - the stem may be lengthened for use in buried and low temperature applications.
Full bore - full bore, low flow resistance design, slab gate valve with orifice for pipeline ball cleaning.
All-weather - the whole closed structure, good protection performance, set up the valve stem protection cover, can adapt to all-weather requirements.
The Best Sex Dolls For Men YOU Can Buy Cheap!
Erase any 2000-the-real-slim-shady blow-up doll memory because we’re here for some serious 21st-century sex doll business.To get more news about sex toys extreme, you can visit pinkkittytoys.com official website.
I’m talking life-size sex dolls that LOOK and FEEL like a real woman (or man if that’s your thing). Soft skin, squishy breasts and bum, and realistic holes both inside and out.
And if you don’t know where to start, don’t worry. We did all the hard work for you, so you’ll find the perfect sex companion that’ll stand by (or bend for) you whenever you want.
In this article, I cover the nitty-gritty of full-size sex dolls — from the best types to buying and taking care of one. I also got a couple of recos for folks on a budget, willing to dip their toes in sex-doll waters.Kiiroo Keon is hands-down the best interactive automatic male masturbator that costs WAY LESS than a good enough sex doll.
It’s jam-packed with impressive tech, a powerful motor, plus a soft, skin-like vaginal stroker that’s even more realistic than what most sex dolls offer. It’s pretty mind-blowing, TBH.
Simply attach the stroker, add lube, get inside the machine, and let it stroke you off at up to 230 strokes per minute. INTENSE? Hell yeah!!! But it doesn’t stop there.
The Keon has FeelTechnology, meaning it can connect to other Kiiroo devices, work over video calls with your partner, and sync to 2D, 3D, and VR porn, so it strokes you in time with what you see.Sex dolls probably are the most expensive sex toy you’ll ever buy (besides investing in real sex). That’s why there are lots of scammers out there selling cheap junk.
There are lots of customization options, materials, things you should know to save money in the long term.
In the general sex toy market, everyone is informed that TPE is not good material. It’s porous (not 100% cleanable, emits a gas-like odor that makes eyes irritated and has allergy reactions to some people like itchy rashes.
After reading countless people’s opinions I understand that many guys simply have a sentiment for TPE because they were the first affordable sex dolls.Plus, even if you’re not sure you can buy your dream sex doll, use it and you’ll still be able to sell it later for 2/3 of the original price.
Not so with TPE. Most people who want to sell it must give it away for practically free since it’s not safe to use as fuck doll anymore.
To me right now the ONLY real difference is that silicone is a LITTLE BIT pricier, but the benefits FAR outweigh the small increase in price range.
Featured Project: LED Video Wall for Digital Art
Global water solutions company Kurita America recently incorporated a decorative LED display into the lobby of its new headquarters in Minneapolis, Minnesota. The industrial water management company joins a growing number of businesses integrating LED video wall technology in their lobbies to enhance visitor and employee experience.To get more news about led wall panel, you can visit htj-led.com official website.
Kurita America hired The Vomela Companies to oversee procurement and management of the technology update. Vomela selected a 2.5 mm LED screen from SNA Displays to meet Kurita’s needs and overall aesthetic.
The wall-mounted, direct-view LED screen, which features custom media players and content from Fusion CI Studios, serves as an artistic centerpiece. The 7′ X 20′ (900 pixels high by 2,400 wide) digital display covers 145 square feet of wall space and has almost 2.2 million total pixels.Kurita joins the growing number of lobby LED projects we have provided,” says Mikell Senger, project manager at SNA Displays. “Fusion CIS recommended a tight-pitch video wall, and the dynamic digital content Fusion is known for really makes the display stand out.”
In addition to manufacturing the screen, SNA Displays oversaw the installation and provided project management while California-based AV installer Digital Dreams performed numerous services, including installing subframes, diecasts, and panels; mounting the cabinets; connecting the media player; and running power and data connections.
The Vomela Companies is a national network of graphic design and large-format printing specialists offering brand awareness through promotional, store decor, event, and transportation visual solutions.
News brief: Is China poised for a tech recovery?
As the US, the UK, various EU countries and other parts of the western world continue to remove Chinese telecoms equipment from their core networks and refuse to buy from the likes of Huawei and ZTE, China’s technology companies overall have had a torrid time of it, with massive amounts wiped from their balance sheets. For example, Alibaba, Tencent and Baidu have collectively lost more than a $1tn in value since last year, with growth stalling as China’s economy slows and consumers spend less. To get more china tech news, you can visit shine news official website.
The tech sector in China has always been viewed with suspicion by the Politburo, especially after Jack Ma, the founder of Alibaba, publicly criticised government financial and trade policy and then disappeared for a few months of ‘re-education’ and has never been the same man since.
Now that Xi Jinping has further tightened his grip on power after being elected for an unprecedented third term as president of the People’s Republic of China (PRC), rigid and rigorous new tech policies may well be imposed on ISPs, e-commerce and social media companies.
China’s hated “zero-Covid” policy and lockdowns have had a huge and stagnating effect on the country, although the government, unsettled by recent and widespread open public opposition to it that culminated in demonstrations and outbreaks of violence in cities across the length and breadth of the huge country, recently precipitately abandoned its hitherto inflexible protocol.
Ironically, the Politburo’s panicked reaction, designed to pacify the population while simultaneously boosting the ailing Chinese economy, has further slowed it as Covid-19 is now spreading like wildfire. Estimates are that the ending of “zero-Covid” will mean the deaths from Covid-19 will top one million before successive waves of the pandemic subside and industrial output increases. It would also help if China’s home-manufactured Covid-19 vaccine was more than about 33% effective.
The US broadcaster, CNBC, recently quoted an email by Xin Sun, a senior lecturer in Chinese and East Asian business at King’s College London. He wrote: “I will argue the prospect of a tech rebound next year depends primarily on the extent to which macroeconomy and especially consumption could recover. Given the current extremely suppressed level of consumption, largely due to Covid restrictions and also the lack of confidence among consumers, a tech rebound is indeed likely if China could smoothly exit from zero-Covid and reopen the economy.”
And there’s the rub. If such a smooth recovery from the pandemic actually happens, then it is likely that the tech sector could start to grow again but the heady days of quarterly revenue growth in the region of 20% to 30% plus are likely to be over. Indeed, the latest figures from Alibaba forecast no more than a 2% increase in revenue in the current fourth quarter (and we’ll soon know the reality of that) but place great emphasis on the possibility of 6% revenue growth by Q1 or Q2 2023. On the other hand, Tencent, is expected to achieve just 0.5% year-on-year growth in Q4 this year but reckons that will rise to 7% by Q1 or Q2 2023.
China’s enormously popular (and lucrative) gaming sector has also declined after the government stopped giving permission for the release of a range of new video games. Another new law put a limit on the amount of time under-18-year olds could spend gaming, and provided for the imposition of heavy fines and other punishment for parents who allowed their offspring to flout the rules. That said, in recent weeks, the Chinese government has made a point of emphasising its support for and encouragement of Chinese gaming companies. “The crackdowns have fundamentally changed the business logic these firms need to follow... in the past Chinese tech giants strived to build the so-called ‘ecosystem’ which, by aggressively acquiring and integrating different lines of business, increased customer stickiness and engagement. Now they have to scale back to focus on their main business lines and seek revenue growth from optimised operation and innovation,” said Xin Sun.
Stock valuations of Chinese tech companies are low and investors may be willing to take a gamble and bet that valuations will rise, however, Xi Jinping continues to drive China’s “Common Prosperity” philosophy hard. Politically, China has moved on from Deng Xiaoping's “Get Rich First” ethos to the notion of a “Common Prosperity” that Xi, who is now effectively China’s president-for-life, says will take until at least 2035 to achieve. He has used the policy as justification for imposing new regulations on what he has called “the excesses" of private industries in general and the technology sector, in particular, and has determinedly brought them to heel and under the beady-eyed close scrutiny of the Politburo.
An Ancient Portrait of a Mystery King Has Been Unearthed at the Foot
Archaeologists in China have unearthed what they think could be a portrait of a king carved into the foot of the Shimao Pyramid in the Shaanxi province.To get more news about ancient chinese bedroom, you can visit shine news official website.
The sculpture is one of 70-some stone carvings discovered at the base of the 4,300-year-old archeological site in recent months and years. But according to Professor Shao Jing, the lead scientist on the Shimao dig, the king portrait is among the largest—and perhaps the most revealing.
Three faces are depicted on the newly excavated, six-foot-tall stone sculpture, with each bearing wide mouths and noses, as well as other adornments, such as earrings. One face, the trio’s biggest, boasts a crown atop its head. But it’s another figure that Shao believes to be the leader.
“The eastern face that has been unearthed appears to be in the center of the whole group—and maybe the image of the king of the Shimao ancestors,” the archeologist, who teaches at the Shaanxi Academy of Archaeology, told the Chinese news agency Xinhua this week.Located on the southern edge of the Ordos Desert in northwest China, the Shimao archaeological site covers nearly 1,000 acres and dates back to 2000 BC, or the end of Longshan period.
The walls surrounding much of the site were once believed to have been part of the Great Wall of China, but, the recent discovery of jade at the site suggests they were erected earlier, during the Neolithic age, per National Geographic.
Shimao’s stepped pyramid stands at roughly 230 feet, making it nearly half the height of Egypt’s Giza pyramids, which were built just a few centuries prior.
At the foot of the pyramid is a sprawling palace that stretches across more than 800,000 square feet and overlooks a walled city that’s even bigger—50 times so. There, researchers have uncovered roadways, courtyards, and public squares, providing a glimpse into how the ancient civilization operated.
According to the Xinhua report, DNA studies have shown that the majority of the walled city’s occupants were Chinese. As for the ruling class, their identity remains unknown. The community is believed to have died out suddenly 3,800 years ago.
Chinese Men Still Get a Pass on Domestic Labor. Even From Their Wives.
Over the past half-century, women around the world have made enormous strides in education and the workforce. Within the home, however, the cause of sexual equality seems to have stagnated, as women continue to shoulder a much greater share of housework than men in both developed and developing countries, regardless of whether they work full-time or make a significant contribution to household earnings.To get more news about traditional chinese women, you can visit shine news official website.
In other words, women must juggle work and housework; for men, it is enough to be a breadwinner. This unequal division of labor has not gone unnoticed by women, and academics like Theodore N. Greenstein, Yoav Lavee, and Ruth Katz have found strong correlations between the amount of housework done by husbands and their wives’ satisfaction with their marriages.One of the few exceptions is Peking University’s semiannual China Family Panel Studies survey, which has tracked a nationally representative sample since 2010. In 2014, researchers asked participants to rate their marital satisfaction; my research team and I were able to use that data to analyze the impact of different gendered divisions of labor on women’s marital satisfaction. Our findings suggest that traditional gender roles are not always easily overturned, even in a country that has modernized as quickly as China.
To start, the vast majority of married women surveyed by CFPS reported being satisfied with their marriage, with just 4.4% stating they were either dissatisfied or extremely dissatisfied. Despite the fact that married women reported spending nearly double the amount of time on housework each day as married men — 2.9 hours to 1.5 hours, respectively — 68.1% of married women reported being satisfied with their husband’s contributions to household chores, compared to just 12.1% who said they were dissatisfied.
Expectations regarding housework in China reflect the influence of entrenched gender norms. Almost 72% of surveyed women agreed with the statement “men should focus on their careers, while women should focus on their families.” Just 9.8% disagreed. Meanwhile, 80% of married women reported being either satisfied or extremely satisfied with their husband’s economic contributions to the family.
This should come as no surprise, as husbands’ contributions make up over 60% of the total income of married couples in China. Since 1949, but especially since the advent of reform and opening-up in the late 1970s, female educational attainment has risen steadily, and now even exceeds that of males. Women’s participation in the labor force is also among the highest in the world. Yet, this is not reflected in the pay that men and women receive. In 2014, the average married male CFPS respondent reported a salary of 23,000 yuan — significantly higher than the average of 13,000 yuan reported by married women. This gender pay gap has grown since the 1990s.
As a result, women are increasingly reliant on their husbands for economic support, which has solidified the traditional view that men are the breadwinners of the family. Indeed, women’s views on gender roles have shown signs of regressing in recent years.
Nevertheless, there is evidence that women’s marital satisfaction is affected by how much housework her husband does, even if it is not as important to her as his economic contributions to the family. This is especially true of women in urban areas, who live in the country’s more developed eastern and central regions, are younger and better-educated, or who report higher incomes and more modern ideas regarding gender roles.
Thus, we can say that China’s modernization has influenced married women’s views regarding the division of housework between couples, even if this change has not occurred evenly or among all women. Interestingly, women who attach more value to their husbands’ contributions to housework do not place a correspondingly lower value on their husbands’ financial contributions. Instead, their expectations come on top of the traditional belief that men should be the family breadwinners. Their definition of the ideal husband, in other words, reflects a mix of traditional and modern elements.
This combination of tradition and modernity may be related to China’s rapid modernization process. The South Korean sociologist Kyung-Sup Chang has argued that, in contrast with the long process of modernization the rise in gender equality found in the West, many societies in East Asia show signs of a “compressed” modernization. Because modernization has happened in such a short period of time, traditional cultural values have not yet fully disappeared, even as new ideas have begun to emerge.
Is The Smell Of BOPP Packing Tape Jumbo Roll Toxic?
Tape is closely related to our life. Although it is very inconspicuous in life, it is inseparable from it. People often say that Scotch tape can't bite and is poisonous. Today, BOPP Tape Jumbo Roll Supplier will take everyone to understand Scotch tape. Is the smell toxic:To get more news about Bopp Packing Tape, you can visit senpinghz.com official website.
Tape is often used for some packaging and packaging work. Some tapes give off a pungent glue. Is this taste toxic?
BOPP Packing Tape Jumbo Roll is made of adhesive and film. It has the taste of glue or glue additive. It has very little poison, but it generally does not affect the user. Many tape manufacturers can wear masks without any mask. Some people use the tape to break between them when they use the tape. They have never heard of such poisoning. It can be seen that the smell of high-quality scotch tape is almost negligible, and it is harmless to the human body; generally we have to look at it. What kind of tape is there, there is no ROHS mark on the tape packaging, but now it is basically environmentally friendly. Only the tape manufacturer uses the inferior glue to reduce the cost, so the smell is big. If it is a special sealing tape, it will come normally. Said to be non-toxic.
3M VHB Structural Glazing Tape Expands Reach With New Partnership
Not too long ago, construction workers lived in a world where architectural possibilities and creativity were limited by rivets, bolts, screws and welds. For more than 25 years, 3M™ VHB™ Tape has served as an industry-changing replacement for mechanical fasteners, structural silicone sealants and spacer tape for commercial window systems. Continuing to reignite the industry, 3M™ has announced partnership with Project Vision Dynamics (PVD) to promote 3M™ VHB™ Structural Glazing Tapes into the US glazing market. The new partnership will connect contract glazers and architects to 3M™ VHB.To get more news about Glazing Tape, you can visit senpinghz.com official website.
3M™ VHB™ Structural Glazing Tape effectively bonds glass to aluminum framing without expensive equipment, expansive warehouse requirements or extended cure times. This accessibility allows the revolutionary tape to provide high-level technology and quality assurance for both large and small scale building projects.
“As a long-time user and advocate of 3M™ VHB™ Structural Glazing Tapes, I know firsthand the value this product brings to the marketplace. 3M™ VHB™ Tape is truly in a league of its own,” said Steve Sherman, president of PVD. “Through 3M’s new partnership with PVD, 3M™ VHB™ Structural Glazing Tape will maintain its vast presence throughout the United States, creating unique opportunities and providing increased value for customers.”
“With more than 30 years of industry experience, Steve Sherman is highly regarded in the industry, and we are excited to have him at the helm in creating a superior customer experience,” said John Skildum, 3M™ VHB™ Tape Business Manager. “With Steve’s level of expertise, PVD will allow 3M to grow in new ways and enhance how our customers can meet their challenges.”
PVD is a technical services support company with extensive design, fabrication, and field experience. The company specializes in training glazing contractors and delivering innovative solutions to construction professionals.
Led by Sherman, PVD will collaborate with 3M™ and 3M’s select distributors to serve contract glazers, systems providers, and architects providing 3M™ VHB™ Tape solutions for bonding glass or metal panels to cassette and unitized curtain walls, as well as commercial window, door and architectural panel systems.
BUTYL SEALANT AND THERMOPLASTIC, ELASTOMERIC SEALANT
General purpose sealant; ideal for liner panel and other interior / exterior gaps and openings. Remains flexible, resists hardening and cracking. Resilient and paintable.To get more news about Butyl Mastic Tape, you can visit senpinghz.com official website.
Our best sealant, can be used for face bedding and cap bead in glazing applications. Seals joints in window miter profiles. For siding, it is used in metal and PVC applications, j-trim and perimeter sealing of windows and doors.
Butyl caulking tape is used for side and end lap sealing between panels such as steel, aluminum and porcelain where joints are subject to shear between similar and dissimilar materials. Butyl tape is 100% solid polyisobutylene cross linked butyl, non-skinning and non-drying preformed sealant.
The butyl tape butyl putty tape butyl mastic tape butyl waterproof tape is a double sided no hardening, butyl based sealant tape. It has an aggressive surface tack and high tensile strength. It no need of a primer. It is ideal for the joining and sealing together of a variety of other surfaces including polyethylene, polypropylene , PVC, Concrete, metal, glass, wood and cadwelds.
The butyl putty tape butyl mastic tape butyl tape butyl waterproof tape (butyl sealant tape) is a 100% solids butyl rubber filler tape, it is a double sided butyl tape.