Archive for ‘create’

01/06/2020

Update: Xi extends Int’l Children’s Day greetings

Children from Hejiazhuang primary school paint in Hejiazhuang Village of Wangba Township in Kangxian County, northwest China’s Gansu Province, May 30, 2020. (Xinhua/Chen Bin)

BEIJING, May 31 (Xinhua) — Chinese President Xi Jinping has greeted children of all ethnic groups across the country on International Children’s Day, which falls on June 1.

Xi, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, called on children to study hard, firm up their ideals and convictions and develop strong bodies and minds to prepare for realizing the Chinese Dream of national rejuvenation.

Xi noted that children nationwide have experienced a special period during the country’s fight against COVID-19 as all Chinese people stand united.

Children paint elephants at the Chimelong Safari Park in Guangzhou, south China’s Guangdong Province, May 27, 2020. Two female Asian elephants gave birth to two babies respectively on April 30 and May 12 in the Chimelong Safari Park in Guangzhou, adding the total number of the Asian elephants here to 27. (Xinhua/Liu Dawei)

Witnessing the great feats of Chinese people working together and rising to challenges, the children have followed the call of the Party and the government to support the anti-epidemic battle with their concrete actions, demonstrating the fine spirit of the country’s children, Xi said.

He stressed that China’s children today are not only undergoing and witnessing the realization of the country’s first centenary goal, they are also a new force for achieving the second centenary goal and building China into a great modern socialist country.

Xi urged Party committees and governments at all levels as well as the society to care for children and create favorable conditions for their growth.

Source: Xinhua

02/11/2019

Chinese scientists create tiny battery capable of working in ultra-low temperatures

  • Team from Dalian Institute of Chemical Physics says its goal is to ‘develop an all-season battery that is low cost but high safety for consumer products’
  • Researchers make breakthrough by using hard carbon and lithium vanadium phosphate
Chinese researchers say they have made a breakthrough in the development of small lithium batteries that can withstand low temperatures. Photo: Xinhua
Chinese researchers say they have made a breakthrough in the development of small lithium batteries that can withstand low temperatures. Photo: Xinhua

Chinese researchers say they have found a way to produce a tiny, lightweight lithium battery for use in mobile phones and electric cars that can hold up to 80 per cent of its charge in temperatures as low as minus 40 degrees Celsius.

The breakthrough came by using a combination of a new material called hard carbon along with lithium vanadium phosphate, the team from the Dalian Institute of Chemical Physics said in a paper published in this month’s edition of the scientific journal Nano Energy.

“Our goal is to develop an all-season battery that is low-cost but high-safety for consumer products,” said Song Zihan, its lead author.

It was an unprecedented approach, but “we proved it works”, he said.

The idea of a battery that can withstand extreme cold is not new. Photo: Shutterstock
The idea of a battery that can withstand extreme cold is not new. Photo: Shutterstock

The idea of a battery that can withstand extreme cold is not new, and they are already in use in space and in the Arctic and Antarctic.

But they tend to be very bulky because of the heating system and large amount of insulation they need to function properly at sub-zero temperatures.

Such measures are neither physically nor economically viable for applications like smartphones, cameras, laptops or electric cars. The trick, Song said, was replacing the soft graphite in normal lithium batteries with hard carbon.

Graphite is a good conductor and often used for the anode at the bottom of a battery, where electrons are generated. But the performance of graphite drops as the mercury slides.

How military tech sparked a robot revolution in firework factories

Song said that hard carbon was a new material that had attracted a lot of research interest in recent years, and compared with graphite, it had a much higher tolerance for the cold.

That was because of its highly irregular and “almost messy” structure, comprising layers of carbon atoms that are interconnected with each other, he said.

However, hard carbon also caused a rapid depletion of the lithium ions that served as an agent carrying the electric flow in battery, he said.

The researchers want to make battery suitable for use in consumer products. Photo: EPA-EFE
The researchers want to make battery suitable for use in consumer products. Photo: EPA-EFE

In the past, researchers have tried adding lithium powders or flakes to improve battery life, but the approach has proven costly and dangerous, mostly because pure lithium is highly reactive.

So Song and his colleagues used a composite material called lithium vanadium phosphate as the positive cathode on top of the battery.

The composite was capable of providing enough extra lithium ions for the hard carbon’s need without increasing the risk of fire or explosion, and it was cheap, he said.

“The pairing of hard carbon and lithium vanadium phosphate worked a charm,” Song said.

But the technology is still a long way from being commercially viable.

The battery Song’s team made is far too small for any real-life applications, and enlarging it would require some “innovative engineering solutions”, he said.

Another scientist involved in the project said the team was working with battery manufacturers to see if the technology could be commercialised.

Source: SCMP

09/05/2019

India’s incredulous data: Economists create own benchmarks

NEW DELHI (Reuters) – Economists and investors are increasingly showing that they have little or no confidence in India’s official economic data – presenting whoever is elected as the next prime minister with an immediate problem.

There have been questions for many years about whether Indian government statistics were telling the full story but two recent controversies over revisions and delays of crucial numbers have taken those concerns to new heights.

The government itself has admitted there are deficiencies in its data collection.

A study conducted by a division of the statistics ministry in the 12 months ending June 2017 found that as much as 36 percent of the companies in the database used in India’s GDP calculations could not be traced or were wrongly classified.

But the ministry said there was no impact on GDP estimates as due care was taken to adjust corporate filings at the aggregate level.

Last December, the government held back the release of jobs data but an official report leaked to an Indian newspaper showed the unemployment rate had touched its highest level in 45 years.

Economists and investors are now voting with their feet – by using alternative sources of data and in some cases creating their own benchmarks to measure the Indian economy.

Ten economists and analysts at banks, think-tanks and foreign funds interviewed by Reuters said they were moving to use alternative data sources, or at least official data of a different kind.

Among the numbers they prefer are fast-moving indicators like car sales, air and rail cargo levels, purchasing managers’ index data, and proprietary indices created by the institutions themselves to track the economy.

Many economists said they were stunned when the government upwardly revised GDP growth for 2016/17 to 8.2 percent from 6.7 percent, although the demonetization of high value notes hit businesses and jobs in that financial year.

“Our response has been to spend time developing an Indian Activity Index, which takes a range of time series data that in the past were strongly correlated with real GDP growth and extract the common signal from them,” said Jeremy Lawson, chief economist at Aberdeen Standard Investments, which manages more than $700 billion in assets.
The preliminary evidence from the index, which includes components like car sales, air cargo and purchasing managers’ index data suggests the government has over-estimated GDP growth, he said.
Our index would suggest that there was stable growth, rather than the rapid acceleration suggested by the GDP figures,” he said, referring to three years of data from 2014.
Even those close to the government have said the lack of accuracy in the official data makes it much more likely that authorities will miss major swings in activity and be unable to react quickly to head off a crisis. It is also a problem for investors who may be misled into thinking the economy is more robust than it really is.
India data conundrum: tmsnrt.rs/2VOwQsy

MISSED FARM CRISIS

The economic wing of the Rashtriya Swayemsewak Sangh, the fountainhead of the ruling Hindu nationalist Bharatiya Janata Party, said the government and the Indian central bank missed anticipating a farm crisis that has now gripped the countryside, with low crop prices driving down farmers’ incomes.

“The fact is the government advisers and the monetary policy committee of the central bank could not diagnose the farm crisis, deflationary conditions in rural economy, and ignored the need to boost growth,” said Ashwani Mahajan, the co-convenor of the group, Swadeshi Jagran Manch, adding the government was now taking steps to address the problem.

The delayed response has cost Prime Minister Narendra Modi at least some support in the countryside in the current general election – although most political strategists still think he can probably hang onto power.

The opposition and other critics have said Modi suppressed jobs data and “massaged” economic growth numbers in an attempt to show that his government has done better than the previous administration.

A spokesman at Modi’s office said no official was available for comment as they were busy with the election while a finance ministry spokesman referred to Finance Minister Arun Jaitley’s previous comments.

In a blog in March, Jaitley criticized economists for doubting the credibility of data and accused them of running a fake campaign against the government.

IDLE CAPACITY

Some investors have been burned by believing in India’s high growth story.

Private power producers invested billions of dollars based on expectations of electricity demand that didn’t pan out in the rural economy. With economic growth pegged at over 8 percent a year, they had expected a pick up in demand by small businesses and household.

Many of the power producers are now facing bankruptcy and legal disputes as many of the new plants they built are working at about 60 percent of capacity.

In the real estate sector, developers said, it could take 3-4 years to clear about 500,000 unsold flats in and around New Delhi that were built on the assumption of higher income jobs in urban areas.

To be sure, the proportion of the Indian economy that is based on the unofficial sector, such as household enterprises, makes it a nightmare to assess economic activity.

P. C. Mohanan, former acting chairman of the national oversight body for statistics, who resigned to protest government interference over the release of the jobs figures and back series data on GDP, said the government hasn’t allocated the resources it needs to measure activity given the growth in the economy.

Gita Gopinath, the International Monetary Fund’s chief economist, told an Indian TV channel last month the IMF had raised the issue of “transparency” with Indian officials in data collection and, in particular, measurement of the GDP deflator – the adjusted inflation rate used to estimate real GDP.

In a statement, the statistics ministry said it was working to address the issue.

A senior official earlier said they were open to suggestions for improvement, just not “politically motivated” criticism.

There are already plans to revamp data compilation and capture the nuanced relationship between prices and real GDP, he said.

Source: Reuters

07/03/2019

Chinese companies in Africa create great development opportunities

BEIJING, March 6 (Xinhua) — Chinese companies operating in Africa have created huge opportunities for the continent’s development, a senior political advisor said Wednesday at a press conference on the sidelines of the annual sessions of the top legislative and political advisory bodies.

There are more than 10,000 Chinese companies in Africa and over 90 percent of them are private businesses, said Nan Cunhui, a member of the Standing Committee of the Chinese People’s Political Consultative Conference National Committee, citing a recent survey.

These companies have built roads, railways, airports, ports and other infrastructure projects in Africa, addressing the bottleneck in development, said Nan, also a vice chairman of the All-China Federation of Industry and Commerce. They have also invested in green energy development, including photovoltaic power stations, to boost local power supply.

The Chinese companies have also brought advanced technologies, development concepts and management to the continent, Nan said.

Citing the operation of an industrial park in Egypt as an example, Nan said over 95 percent of the employees are locals who develop professional skills and gain managerial know-how through their work.

“Chinese companies in Africa have contributed a lot to the local economic development through infrastructure construction, job creation and tax payment,” Nan said. “I believe China-Africa cooperation will go from strength to strength.”

Source: Xinhua

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