RFID(Radio Frequency Identification,射频识别)通过自动识别帮助机器或计算机识别对象,记录元数据或通过无线电波控制单个目标等。当RFID阅读器与Internet终端相连接时,阅读器可以根据需要全局、自动、实时地识别,跟踪和监视带有标签...RFID(Radio Frequency Identification,射频识别)通过自动识别帮助机器或计算机识别对象,记录元数据或通过无线电波控制单个目标等。当RFID阅读器与Internet终端相连接时,阅读器可以根据需要全局、自动、实时地识别,跟踪和监视带有标签的对象。研究从基于FPGA(Field Programmable Gate Array,现场可编程逻辑门阵列)的RFID阅读器三个方面入手进行阐述:整体、硬件部分和软件部分。首先论述阅读器的整体构成、天线以及数字基带结构,然后从硬件部分和软件部分细致地对阅读器进行剖析阐述,最后进行了仿真模拟。展开更多
The statistics of the China matural gas industry prosperity index showed that the China natural gas industry prosperity index was 302.84 in the 1st quarter of 2024,up 3.6%from the 4th quarter of 2023,a stably prospero...The statistics of the China matural gas industry prosperity index showed that the China natural gas industry prosperity index was 302.84 in the 1st quarter of 2024,up 3.6%from the 4th quarter of 2023,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 428.78 in the 1st quarter of 2024.展开更多
Global media attention has recently riveted on China’s economic data for the first quarter(Q1)of 2024.The 5.3 percent year-on-year expansion of the country’s gross domestic product(GDP)having dominated headlines,Ch...Global media attention has recently riveted on China’s economic data for the first quarter(Q1)of 2024.The 5.3 percent year-on-year expansion of the country’s gross domestic product(GDP)having dominated headlines,China’s dynamic growth has clearly set the Western media back on its heels.This is only to be expected,given the past few months of their relentless“China peak”rhetoric.展开更多
New textile materials are being developed at a rapid pace,breaking the boundaries between traditional textile technologies and offering new functional,environmental and comfort benefits.In the first quarter of 2024,th...New textile materials are being developed at a rapid pace,breaking the boundaries between traditional textile technologies and offering new functional,environmental and comfort benefits.In the first quarter of 2024,the textile industry has ushered in a wave of innovation.These new materials not only bring new development opportunities for the textile industry,but also more possibilities for our lives.This article summarizes some of the recently released new textile materials,their application prospects and impact on the industry.展开更多
On January 8th,the China Chamber of Commerce for Import and Export of Textiles released data showing that in the fourth quarter,China’s textile and clothing exports gradually stabilised.The proportion of intermediate...On January 8th,the China Chamber of Commerce for Import and Export of Textiles released data showing that in the fourth quarter,China’s textile and clothing exports gradually stabilised.The proportion of intermediate exports in textile and clothing exports continued to rise,providing a new impetus for the substantial expansion of exports to traditional markets and international supply chain cooperation.展开更多
Highlights of key developments in China-Africa relations in 2023.Africa CDC Headquarters Phase I Completed On 11 January,the China-aided Africa Centres for Disease Control and Prevention(Africa CDC)Headquarters Buildi...Highlights of key developments in China-Africa relations in 2023.Africa CDC Headquarters Phase I Completed On 11 January,the China-aided Africa Centres for Disease Control and Prevention(Africa CDC)Headquarters Building Project(Phase I)was officially inaugurated in Addis Ababa,Ethiopia.(XINHUA).展开更多
Increasing Bicycle Exports China’s bicycle exports expanded in the first quarter of this year,continuing the recovery momentum since the second half of 2023,according to an industry association.In the first quarter,t...Increasing Bicycle Exports China’s bicycle exports expanded in the first quarter of this year,continuing the recovery momentum since the second half of 2023,according to an industry association.In the first quarter,the country’s bicycle exports reached nearly 11 million units,an increase of 13.7 percent compared to the fourth quarter of last year,according to data from the China Bicycle Association.In breakdown,China exported about 2.3 million bicycles to the US during the period,surging 47.2 percent year on year.The country’s exports to Russia climbed 52.1 percent year on year to 930,000 units.The value of bicycle parts and accessories from China reached$746 million,up 10.8 percent from the same period in 2019.展开更多
Quantitative data are essential to an appro-priate characterization of vegetation.In the past few years,considerable attention has been paid to vegetation sampling techniques.A number of methods have been developed fo...Quantitative data are essential to an appro-priate characterization of vegetation.In the past few years,considerable attention has been paid to vegetation sampling techniques.A number of methods have been developed for plant density estimations that utilize spacing distances instead of fixed-area quadrats.In this paper,we review the main distance methods for estimating density and propose a new distance method denominated the quartered neighbor method.In this method,the sampling point is considered the center,and the area around it is divided into four quadrants.The distance from the closest individual in each quadrant to its closest neighbor in the same quadrant is measured,and the average of them is the distance we need.It is actually an integration of two old distance methods,the nearest neighbor method,and the point-centered quarter method.With our new method and an old distance method(the point-centered quarter method),we calculated the average spacing distances of the Larix principis-rupprechtii population in the larch forests of the Donglingshan Mountain.Comparing the two methods with the quadrat method,we found they were almost the same in accuracy,but the precision of the new one was better.Meanwhile,it is adequate in sampling intensity and adaptable for general use in rapid ecological survey work.展开更多
The identification of ship collision risks is an important element in maritime safety and management.The concept of the ship domain has also been studied and developed since it was proposed.Considering the existing tr...The identification of ship collision risks is an important element in maritime safety and management.The concept of the ship domain has also been studied and developed since it was proposed.Considering the existing trend that the ship domain is increasingly widely used in collision risk-related research,a new domain-oriented collision risk factor,i.e.,the current state of domain(CSD),is introduced in this paper,which can effectively reflect the current state and show a certain predictability of collision risk from the perspective of the ship domain.To further prove the rationality of the CSD,a series of different simulations consisting of three typical encounter scenarios were conducted,verifying the superiority of the proposed parameter.展开更多
According to public data,about 255 million smart phones were sold in China’s market in 2022,down 19% from the year of 2021.This situation was not specific to China alone,because according to the IDC’s research repor...According to public data,about 255 million smart phones were sold in China’s market in 2022,down 19% from the year of 2021.This situation was not specific to China alone,because according to the IDC’s research report,the global smartphone sales in 2022 were not ideal.The global shipment volume in the fourth quarter of 2022 was only300.3 million units,down 18.3%from 367.6 million units in the fourth quarter of 2021.展开更多
According to the newest Vietnam Macro Monitoring,an economic report released by World Bank,Vietnam’s economy slowed to 3.32 percent year-on-year in the first quarter,falling short of the anticipated 4.8 percent.The f...According to the newest Vietnam Macro Monitoring,an economic report released by World Bank,Vietnam’s economy slowed to 3.32 percent year-on-year in the first quarter,falling short of the anticipated 4.8 percent.The figure stands as the second-lowest first-quarter data in the past 12 years.展开更多
The statistics of the China Natural Gas Industry Prosperity Index showed that the China Natural Gas Industry Prosperity Index was 257.42 in the 1st quarter of 2023,up 4.7%from the 4th quarter of 2022,a stably prospero...The statistics of the China Natural Gas Industry Prosperity Index showed that the China Natural Gas Industry Prosperity Index was 257.42 in the 1st quarter of 2023,up 4.7%from the 4th quarter of 2022,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 353.73 in the 1st quarter of 2023,up 6.3%from the 4th quarter of 2022,an increasingly prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas sales companies was 174.44 in the 1st quarter of 2023,up 3.3%from the 4th quarter of 2022,a recovery in the short term and a prosperous state in the medium to long term;the prosperity trend index of the natural gas industry in the coming year for the 1st quarter of 2023 was 462.27,up 6.9%from the 4th quarter of 2022,a very prosperous state,indicating that natural gas industry experts are optimistic about the natural gas industry’s prosperity trend in the coming year.See Fig.1 and Table 1 for details.展开更多
Insufficient domestic demand remains a challenge Better-than-expected,recovery,hard-won results... these are the key words that constitute China’s economic performance in the first quarter (QI) of 2023,laying a found...Insufficient domestic demand remains a challenge Better-than-expected,recovery,hard-won results... these are the key words that constitute China’s economic performance in the first quarter (QI) of 2023,laying a foundation for achieving the country’s growth target for this year-set at around 5 percent.展开更多
The statistics of the China Natural Gas Industry Prosperity Index showed that the China Natural Gas Industry Prosperity Index was 292.43 in the 4th quarter of2023,up 5.6% from the 3rd quarter of 2023,a stably prospero...The statistics of the China Natural Gas Industry Prosperity Index showed that the China Natural Gas Industry Prosperity Index was 292.43 in the 4th quarter of2023,up 5.6% from the 3rd quarter of 2023,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 412.81 in the 4th quarter of 2023,up 5.6% from the 3rd quarter of 2023,an increasingly prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas sales companies was 192.67 in the 4th quarter of 2023,up 5.9% from the 3rd quarter of 2023,a recovery in the short term and a prosperous state in the medium to long term;the prosperity trend index of the natural gas industry in the coming year for the 4th quarter of 2023 was 575.96,up 6.9% from the 3rd quarter of 2023,a very prosperous state,indicating that natural gas industry experts are optimistic about the natural gas industry's prosperity trend in the coming year.展开更多
The statistics of the China natural gas industry prosperity index showed that the China natural gas industry prosperity index was 277.03 in the 3rd quarter of 2023,up 4.0%from the 2nd quarter of 2023,a stably prospero...The statistics of the China natural gas industry prosperity index showed that the China natural gas industry prosperity index was 277.03 in the 3rd quarter of 2023,up 4.0%from the 2nd quarter of 2023,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 390.88 in the 3rd quarter of 2023,up 5.2%from the 2nd quarter of 2023,an increasingly prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas sales companies was 181.91 in the 3rd quarter of 2023,up 3.3%from the 2nd quarter of 2023,a recovery in the short term and a prosperous state in the medium to long term;the prosperity trend index of the natural gas industry in the coming year for the 3rd quarter of 2023 was 538.84,up 6.4%from the 2nd quarter of 2023,a very prosperous state,indicating that natural gas industry experts are optimistic about the natural gas industry’s prosperity trend in the coming year(Fig.1 and Table 1).展开更多
Sino-African health cooperation grows with the completion of the Africa CDC Headquarters building The new gleaming headquarters building of the Africa Centres for Disease Control and Prevention(Africa CDC) was inaugur...Sino-African health cooperation grows with the completion of the Africa CDC Headquarters building The new gleaming headquarters building of the Africa Centres for Disease Control and Prevention(Africa CDC) was inaugurated by the African Union Commission(AUC) in January 2023, with the special guest being the new Chinese Foreign Minister Qin Gang.展开更多
The Africa Centres for Disease Control and Prevention(Africa CDC)on 10 November unveiled a China-aided reference laboratory at its headquarters in Ethiopia.Senior offcials from the AU Commission and the Africa CDC,dip...The Africa Centres for Disease Control and Prevention(Africa CDC)on 10 November unveiled a China-aided reference laboratory at its headquarters in Ethiopia.Senior offcials from the AU Commission and the Africa CDC,diplomats from the Chinese mission to the AU and high-level dignitaries witnessed the unveiling ceremony inside the premises of the Africa CDC headquarters in the southern suburb of Addis Ababa,the Ethiopian capital.展开更多
文摘The statistics of the China matural gas industry prosperity index showed that the China natural gas industry prosperity index was 302.84 in the 1st quarter of 2024,up 3.6%from the 4th quarter of 2023,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 428.78 in the 1st quarter of 2024.
文摘Global media attention has recently riveted on China’s economic data for the first quarter(Q1)of 2024.The 5.3 percent year-on-year expansion of the country’s gross domestic product(GDP)having dominated headlines,China’s dynamic growth has clearly set the Western media back on its heels.This is only to be expected,given the past few months of their relentless“China peak”rhetoric.
文摘New textile materials are being developed at a rapid pace,breaking the boundaries between traditional textile technologies and offering new functional,environmental and comfort benefits.In the first quarter of 2024,the textile industry has ushered in a wave of innovation.These new materials not only bring new development opportunities for the textile industry,but also more possibilities for our lives.This article summarizes some of the recently released new textile materials,their application prospects and impact on the industry.
文摘On January 8th,the China Chamber of Commerce for Import and Export of Textiles released data showing that in the fourth quarter,China’s textile and clothing exports gradually stabilised.The proportion of intermediate exports in textile and clothing exports continued to rise,providing a new impetus for the substantial expansion of exports to traditional markets and international supply chain cooperation.
文摘Highlights of key developments in China-Africa relations in 2023.Africa CDC Headquarters Phase I Completed On 11 January,the China-aided Africa Centres for Disease Control and Prevention(Africa CDC)Headquarters Building Project(Phase I)was officially inaugurated in Addis Ababa,Ethiopia.(XINHUA).
文摘Increasing Bicycle Exports China’s bicycle exports expanded in the first quarter of this year,continuing the recovery momentum since the second half of 2023,according to an industry association.In the first quarter,the country’s bicycle exports reached nearly 11 million units,an increase of 13.7 percent compared to the fourth quarter of last year,according to data from the China Bicycle Association.In breakdown,China exported about 2.3 million bicycles to the US during the period,surging 47.2 percent year on year.The country’s exports to Russia climbed 52.1 percent year on year to 930,000 units.The value of bicycle parts and accessories from China reached$746 million,up 10.8 percent from the same period in 2019.
基金The study was supported by the National Natural Science Foundation of China(Grant No.30870399)the Teachers’Foundation of Education Ministry of China.
文摘Quantitative data are essential to an appro-priate characterization of vegetation.In the past few years,considerable attention has been paid to vegetation sampling techniques.A number of methods have been developed for plant density estimations that utilize spacing distances instead of fixed-area quadrats.In this paper,we review the main distance methods for estimating density and propose a new distance method denominated the quartered neighbor method.In this method,the sampling point is considered the center,and the area around it is divided into four quadrants.The distance from the closest individual in each quadrant to its closest neighbor in the same quadrant is measured,and the average of them is the distance we need.It is actually an integration of two old distance methods,the nearest neighbor method,and the point-centered quarter method.With our new method and an old distance method(the point-centered quarter method),we calculated the average spacing distances of the Larix principis-rupprechtii population in the larch forests of the Donglingshan Mountain.Comparing the two methods with the quadrat method,we found they were almost the same in accuracy,but the precision of the new one was better.Meanwhile,it is adequate in sampling intensity and adaptable for general use in rapid ecological survey work.
基金The National Natural Science Foundation of China(Grant No.51909022)Natural Science Foundation of Liaoning Province(Grant No.2019-BS-024)+1 种基金Research Program of Maritime Safety Administration of China(Grant No.0706-14400004N010)the Fundamental Research Funds for the Central Universities(Grant No.3132019347).
文摘The identification of ship collision risks is an important element in maritime safety and management.The concept of the ship domain has also been studied and developed since it was proposed.Considering the existing trend that the ship domain is increasingly widely used in collision risk-related research,a new domain-oriented collision risk factor,i.e.,the current state of domain(CSD),is introduced in this paper,which can effectively reflect the current state and show a certain predictability of collision risk from the perspective of the ship domain.To further prove the rationality of the CSD,a series of different simulations consisting of three typical encounter scenarios were conducted,verifying the superiority of the proposed parameter.
文摘According to public data,about 255 million smart phones were sold in China’s market in 2022,down 19% from the year of 2021.This situation was not specific to China alone,because according to the IDC’s research report,the global smartphone sales in 2022 were not ideal.The global shipment volume in the fourth quarter of 2022 was only300.3 million units,down 18.3%from 367.6 million units in the fourth quarter of 2021.
文摘According to the newest Vietnam Macro Monitoring,an economic report released by World Bank,Vietnam’s economy slowed to 3.32 percent year-on-year in the first quarter,falling short of the anticipated 4.8 percent.The figure stands as the second-lowest first-quarter data in the past 12 years.
文摘The statistics of the China Natural Gas Industry Prosperity Index showed that the China Natural Gas Industry Prosperity Index was 257.42 in the 1st quarter of 2023,up 4.7%from the 4th quarter of 2022,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 353.73 in the 1st quarter of 2023,up 6.3%from the 4th quarter of 2022,an increasingly prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas sales companies was 174.44 in the 1st quarter of 2023,up 3.3%from the 4th quarter of 2022,a recovery in the short term and a prosperous state in the medium to long term;the prosperity trend index of the natural gas industry in the coming year for the 1st quarter of 2023 was 462.27,up 6.9%from the 4th quarter of 2022,a very prosperous state,indicating that natural gas industry experts are optimistic about the natural gas industry’s prosperity trend in the coming year.See Fig.1 and Table 1 for details.
文摘Insufficient domestic demand remains a challenge Better-than-expected,recovery,hard-won results... these are the key words that constitute China’s economic performance in the first quarter (QI) of 2023,laying a foundation for achieving the country’s growth target for this year-set at around 5 percent.
文摘The statistics of the China Natural Gas Industry Prosperity Index showed that the China Natural Gas Industry Prosperity Index was 292.43 in the 4th quarter of2023,up 5.6% from the 3rd quarter of 2023,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 412.81 in the 4th quarter of 2023,up 5.6% from the 3rd quarter of 2023,an increasingly prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas sales companies was 192.67 in the 4th quarter of 2023,up 5.9% from the 3rd quarter of 2023,a recovery in the short term and a prosperous state in the medium to long term;the prosperity trend index of the natural gas industry in the coming year for the 4th quarter of 2023 was 575.96,up 6.9% from the 3rd quarter of 2023,a very prosperous state,indicating that natural gas industry experts are optimistic about the natural gas industry's prosperity trend in the coming year.
文摘The statistics of the China natural gas industry prosperity index showed that the China natural gas industry prosperity index was 277.03 in the 3rd quarter of 2023,up 4.0%from the 2nd quarter of 2023,a stably prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas production companies was 390.88 in the 3rd quarter of 2023,up 5.2%from the 2nd quarter of 2023,an increasingly prosperous state in the short term and a very prosperous state in the medium to long term;the prosperity index of natural gas sales companies was 181.91 in the 3rd quarter of 2023,up 3.3%from the 2nd quarter of 2023,a recovery in the short term and a prosperous state in the medium to long term;the prosperity trend index of the natural gas industry in the coming year for the 3rd quarter of 2023 was 538.84,up 6.4%from the 2nd quarter of 2023,a very prosperous state,indicating that natural gas industry experts are optimistic about the natural gas industry’s prosperity trend in the coming year(Fig.1 and Table 1).
文摘Sino-African health cooperation grows with the completion of the Africa CDC Headquarters building The new gleaming headquarters building of the Africa Centres for Disease Control and Prevention(Africa CDC) was inaugurated by the African Union Commission(AUC) in January 2023, with the special guest being the new Chinese Foreign Minister Qin Gang.
文摘The Africa Centres for Disease Control and Prevention(Africa CDC)on 10 November unveiled a China-aided reference laboratory at its headquarters in Ethiopia.Senior offcials from the AU Commission and the Africa CDC,diplomats from the Chinese mission to the AU and high-level dignitaries witnessed the unveiling ceremony inside the premises of the Africa CDC headquarters in the southern suburb of Addis Ababa,the Ethiopian capital.
