The battery technology progress has been a contradictory process in which performance improvement and hidden risks coexist.Now the battery is still a“black box”,thus requiring a deep understanding of its internal st...The battery technology progress has been a contradictory process in which performance improvement and hidden risks coexist.Now the battery is still a“black box”,thus requiring a deep understanding of its internal state.The battery should“sense its internal physical/chemical conditions”,which puts strict requirements on embedded sensing parts.This paper summarizes the application of advanced optical fiber sensors in lithium-ion batteries and energy storage technologies that may be mass deployed,focuses on the insights of advanced optical fiber sensors into the processes of one-dimensional nano-micro-level battery material structural phase transition,electrolyte degradation,electrode-electrolyte interface dynamics to three-dimensional macro-safety evolution.The paper contributes to understanding how to use optical fiber sensors to achieve“real”and“embedded”monitoring.Through the inherent advantages of the advanced optical fiber sensor,it helps clarify the battery internal state and reaction mechanism,aiding in the establishment of more detailed models.These advancements can promote the development of smart batteries,with significant importance lying in essentially promoting the improvement of system consistency.Furthermore,with the help of smart batteries in the future,the importance of consistency can be weakened or even eliminated.The application of advanced optical fiber sensors helps comprehensively improve the battery quality,reliability,and life.展开更多
On April 11th, the 12th Asian Chemical Fiber Conference, the high-est-level professional meeting of the Asian chemical fibre industry, was held in Bali, Indonesia. The theme of the conference was “Sustainable develop...On April 11th, the 12th Asian Chemical Fiber Conference, the high-est-level professional meeting of the Asian chemical fibre industry, was held in Bali, Indonesia. The theme of the conference was “Sustainable development of chemical fibers”. It was represented by chemical fibre associations from nine countries and regions in China, India, Indonesia, Japan, Korea, Malaysia, Pakistan, Taiwan China and Thailand attended the meeting.展开更多
From January to September,2017,the operation of the chemical fiber industry continued to keep an upward situation.As the textile industry got warmer,the demand of the chemical fiber industry had significant improvemen...From January to September,2017,the operation of the chemical fiber industry continued to keep an upward situation.As the textile industry got warmer,the demand of the chemical fiber industry had significant improvement.The entire operation rate of the industry has improved from that of the same period in the previous year.It was not slack in the chemical fiber market even in off seasons.In the third quarter。展开更多
In the second quarter,with the gradual improvement of the domestic pandemic,the process of resuming production of chemical fiber enterprises accelerated,and the demand in the textile terminal market has rebounded.The ...In the second quarter,with the gradual improvement of the domestic pandemic,the process of resuming production of chemical fiber enterprises accelerated,and the demand in the textile terminal market has rebounded.The decline in major operating indicators such as production,investment and quality efficiency of the chemical fiber industry has been significantly narrower than that from January to March.However,due to the spread of the pandemic abroad,China’s chemical fiber import and export volume have declined significantly,especially the export volume of major products have turned from a positive growth in January to March to a negative growth.International oil prices began to fluctuate upwards after the plunge in April,which supported the cost of chemical fiber products to a certain extent.However,insufficient demand was still the biggest problem faced by the chemical fiber industry in the first half of the year.展开更多
The 15th China’s International Chemical Fiber Conference was held at Hangzhou, Zhejiang Province on June 10th-12th, 2009. The theme of the conference is "Financial Crisis and Chemical Fiber Industry". Hundr...The 15th China’s International Chemical Fiber Conference was held at Hangzhou, Zhejiang Province on June 10th-12th, 2009. The theme of the conference is "Financial Crisis and Chemical Fiber Industry". Hundreds of delegates展开更多
In a gathering,some so-called successful businessmen are talking happily.Among them is a famous chemical fiber manufacturer Chen Jianhua.Chen recalled his past in his memoir "My Endeavor"-"I was born in...In a gathering,some so-called successful businessmen are talking happily.Among them is a famous chemical fiber manufacturer Chen Jianhua.Chen recalled his past in his memoir "My Endeavor"-"I was born in a remote town Shengze in 1971, suffering an impoverished life when I was very young.My family is hard to afford tuition fee when I was a pupil,…."But a hero is known in the time of misfortune,Chen owns a total asset of 13 billion Yuan at this moment with his unremitting efforts year by year,mastering a kingdom of chemical fiber-Hengli Group..As an old saying goes "Suffering is wealth",the early experience steeled Chen,endowing the wealth and fortitude to him. After skimming over Chen's memoir,I continued a further face to face interview with him in order to understand his course of struggle more deeply.All the success have their own highlights in their characters,therefore,we cannot make an exception of Chen's case.展开更多
Under the pressure of the lasting-high prices of world oil and raw materials of chemical fiber, the increasingly serious environment of international textile trade, and the fluctuation of RMB exchange rate, China’s c...Under the pressure of the lasting-high prices of world oil and raw materials of chemical fiber, the increasingly serious environment of international textile trade, and the fluctuation of RMB exchange rate, China’s chemical fiber industry suffered some embarrassments in the first half year of 2005, but redeveloped in the other half.展开更多
On Jun. 10-12, 2009, The 15th China’s International Chemical Fiber Conference, with the theme of "Financial Crisis and Chemical Fiber Industry", was held at Hangzhou, Zhejiang Province. During the conferenc...On Jun. 10-12, 2009, The 15th China’s International Chemical Fiber Conference, with the theme of "Financial Crisis and Chemical Fiber Industry", was held at Hangzhou, Zhejiang Province. During the conference, the China Chemical Fiber Association released a speech on "The Impact of Global Financial Crisis on China Chemical Fiber Industry and Response Strategies". Here in the following part, we will focus on the part of the impact of financial crisis on Chinese chemical fiber industry. In our next issue, we will go on with the part of Response Strategies.展开更多
Prospects of Global Financial Crisis and Economic Crisis The widely spreading global financial crisis has halted the fast growth of world economy in five consecutive years,and heavily stricken the financial and econom...Prospects of Global Financial Crisis and Economic Crisis The widely spreading global financial crisis has halted the fast growth of world economy in five consecutive years,and heavily stricken the financial and economic sectors worldwide.It’s second only to the "Great Depression" in the 1930’s.Governments展开更多
A news briefing held on May 13 by local government in Jilin city of Jilin province released that 161 workers got sick symptoms as a result of their contact with an unidentified gas emitting from Jilin Chemical Fiber G...A news briefing held on May 13 by local government in Jilin city of Jilin province released that 161 workers got sick symptoms as a result of their contact with an unidentified gas emitting from Jilin Chemical Fiber Group Corp.展开更多
The coconut palm tree leaf sheath fibers were analyzed by FTIR spectral analysis, Chemical, X-ray and thermo gravimetric methods to assess their suitability as reinforcements in the preparation of green composites. Th...The coconut palm tree leaf sheath fibers were analyzed by FTIR spectral analysis, Chemical, X-ray and thermo gravimetric methods to assess their suitability as reinforcements in the preparation of green composites. The morphology of the untreated and alkali treated fibers was studied by scanning electron microscopic method. The FTIR and chemical analyses indicated lowering of hemi-cellulose content by alkali treatment of the fibers. The X-ray diffraction revealed an increase in crystallinity of the fibers on alkali treatment. The thermal stability of the fibers was found to increase slightly by alkali treatment. The tensile properties of these fibers increased on alkali treatment. The mechanical and other physical properties indicated that these fibers were suitable as reinforcements for making the green composites.展开更多
The optical properties of graphene coated D-shaped single mode fiber and photonic crystal fiber are numerically analyzed. Enhancement of the graphene-light interaction is found in graphene coated D-shaped photonic cry...The optical properties of graphene coated D-shaped single mode fiber and photonic crystal fiber are numerically analyzed. Enhancement of the graphene-light interaction is found in graphene coated D-shaped photonic crystal fiber,which introduces a tunable polarization of the D-shaped fiber by changing the chemical potential of the coated graphene.An optimal polarizer model is demonstrated with the extinction ratio of 66.26 dB/mm and the insertion loss of 9.4 dB/mm.The modulator extinction ratios of the TE mode and TM mode are 11.5 dB and 5 dB, respectively, with a device length of100 μm. This paper provides a theoretical reference for the optical property research of the graphene fiber.展开更多
In order to improve the properties by chemical modification and to optimize the alkali concentration, we treated Borassus fruit fine fibers with aqueous sodium hydroxide solutions of different concentra- tions. In eac...In order to improve the properties by chemical modification and to optimize the alkali concentration, we treated Borassus fruit fine fibers with aqueous sodium hydroxide solutions of different concentra- tions. In each case, the tensile properties of the fibers were determined. The morphology of the untreated and alkali treated fibers was observed using scanning electron microscope. The surface of the fibers became rough on alkali treatment. The tensile properties of the fibers improved on alkali treatment. The fibers attained maximum tensile properties when treated with 15% aqueous sodium hydroxide solution and decreased thereafter. The crystallinity index of the fibers showed a similar trend. The thermal stability of the alkali treated fibers was found to be higher than that of untreated fibers. Further, the char content was maximum for fibers treated with alkali having concentration of 15% and above. The chemical composition indicated that the percentageof a-cellulose was maximum when the fibers were treated with 15% aqueous sodium hydroxide solution and then decreased thereafter thus indicating the beginning of degradation of the fibers at higher concentrations. Thus, the optimum concentration of NaOH was established as 15% for alkali treatment of the Borassus fibers.展开更多
Poplar is raw material for various panel, paper and fiber products. The 12 sample trees of clone Nanlin-895 from four spacings were destructively harvested after thirteen growing seasons to assess the influence of spa...Poplar is raw material for various panel, paper and fiber products. The 12 sample trees of clone Nanlin-895 from four spacings were destructively harvested after thirteen growing seasons to assess the influence of spacing on radial growth and wood properties. Spacing significantly affected tree-ring width and wood basic density (p < 0.05) but not fiber traits. The highest diameter and wood basic density at breast height (1.3 m) was in 6 m × 6 m and 3 m × 8 m spacings, respectively. However, no significant differences in tree-ring width, wood basic density and fiber traits were observed among the four sampling directions in discs taken at 1.3 m for each spacing. Growth rings from the pith and tree heights had significant effects on wood basic density and fiber anatomical characteristics, highlighting obvious temporal-spatial variations. Pearson correlation analysis showed a significantly negative relationship of tree-ring width to wood basic density, fiber length and fiber width, but a significantly positive relationship to hemicellulose. There was no relationship with cellulose and lignin contents. Based on a comprehensive assessment by the TOPSIS method, the 6 m × 6 m spacing is recommended for producing wood fiber at similar sites in the future.展开更多
基金the National Natural Science Foundation of China(No.52307245[Y.D.Li],No.U21A20170[X.He],22279070[L.Wang],and 52206263[Y.Song])the China Postdoctoral Science Foundation(No.2022M721820[Y.D.Li])the Ministry of Science and Technology of China(No.2019YFA0705703[L.Wang])。
文摘The battery technology progress has been a contradictory process in which performance improvement and hidden risks coexist.Now the battery is still a“black box”,thus requiring a deep understanding of its internal state.The battery should“sense its internal physical/chemical conditions”,which puts strict requirements on embedded sensing parts.This paper summarizes the application of advanced optical fiber sensors in lithium-ion batteries and energy storage technologies that may be mass deployed,focuses on the insights of advanced optical fiber sensors into the processes of one-dimensional nano-micro-level battery material structural phase transition,electrolyte degradation,electrode-electrolyte interface dynamics to three-dimensional macro-safety evolution.The paper contributes to understanding how to use optical fiber sensors to achieve“real”and“embedded”monitoring.Through the inherent advantages of the advanced optical fiber sensor,it helps clarify the battery internal state and reaction mechanism,aiding in the establishment of more detailed models.These advancements can promote the development of smart batteries,with significant importance lying in essentially promoting the improvement of system consistency.Furthermore,with the help of smart batteries in the future,the importance of consistency can be weakened or even eliminated.The application of advanced optical fiber sensors helps comprehensively improve the battery quality,reliability,and life.
文摘On April 11th, the 12th Asian Chemical Fiber Conference, the high-est-level professional meeting of the Asian chemical fibre industry, was held in Bali, Indonesia. The theme of the conference was “Sustainable development of chemical fibers”. It was represented by chemical fibre associations from nine countries and regions in China, India, Indonesia, Japan, Korea, Malaysia, Pakistan, Taiwan China and Thailand attended the meeting.
文摘From January to September,2017,the operation of the chemical fiber industry continued to keep an upward situation.As the textile industry got warmer,the demand of the chemical fiber industry had significant improvement.The entire operation rate of the industry has improved from that of the same period in the previous year.It was not slack in the chemical fiber market even in off seasons.In the third quarter。
文摘In the second quarter,with the gradual improvement of the domestic pandemic,the process of resuming production of chemical fiber enterprises accelerated,and the demand in the textile terminal market has rebounded.The decline in major operating indicators such as production,investment and quality efficiency of the chemical fiber industry has been significantly narrower than that from January to March.However,due to the spread of the pandemic abroad,China’s chemical fiber import and export volume have declined significantly,especially the export volume of major products have turned from a positive growth in January to March to a negative growth.International oil prices began to fluctuate upwards after the plunge in April,which supported the cost of chemical fiber products to a certain extent.However,insufficient demand was still the biggest problem faced by the chemical fiber industry in the first half of the year.
文摘The 15th China’s International Chemical Fiber Conference was held at Hangzhou, Zhejiang Province on June 10th-12th, 2009. The theme of the conference is "Financial Crisis and Chemical Fiber Industry". Hundreds of delegates
文摘In a gathering,some so-called successful businessmen are talking happily.Among them is a famous chemical fiber manufacturer Chen Jianhua.Chen recalled his past in his memoir "My Endeavor"-"I was born in a remote town Shengze in 1971, suffering an impoverished life when I was very young.My family is hard to afford tuition fee when I was a pupil,…."But a hero is known in the time of misfortune,Chen owns a total asset of 13 billion Yuan at this moment with his unremitting efforts year by year,mastering a kingdom of chemical fiber-Hengli Group..As an old saying goes "Suffering is wealth",the early experience steeled Chen,endowing the wealth and fortitude to him. After skimming over Chen's memoir,I continued a further face to face interview with him in order to understand his course of struggle more deeply.All the success have their own highlights in their characters,therefore,we cannot make an exception of Chen's case.
文摘Under the pressure of the lasting-high prices of world oil and raw materials of chemical fiber, the increasingly serious environment of international textile trade, and the fluctuation of RMB exchange rate, China’s chemical fiber industry suffered some embarrassments in the first half year of 2005, but redeveloped in the other half.
文摘On Jun. 10-12, 2009, The 15th China’s International Chemical Fiber Conference, with the theme of "Financial Crisis and Chemical Fiber Industry", was held at Hangzhou, Zhejiang Province. During the conference, the China Chemical Fiber Association released a speech on "The Impact of Global Financial Crisis on China Chemical Fiber Industry and Response Strategies". Here in the following part, we will focus on the part of the impact of financial crisis on Chinese chemical fiber industry. In our next issue, we will go on with the part of Response Strategies.
文摘Prospects of Global Financial Crisis and Economic Crisis The widely spreading global financial crisis has halted the fast growth of world economy in five consecutive years,and heavily stricken the financial and economic sectors worldwide.It’s second only to the "Great Depression" in the 1930’s.Governments
文摘A news briefing held on May 13 by local government in Jilin city of Jilin province released that 161 workers got sick symptoms as a result of their contact with an unidentified gas emitting from Jilin Chemical Fiber Group Corp.
基金supported by University Grants Com-mission,India,Major Research Project(No:33-397/2007(SRF))
文摘The coconut palm tree leaf sheath fibers were analyzed by FTIR spectral analysis, Chemical, X-ray and thermo gravimetric methods to assess their suitability as reinforcements in the preparation of green composites. The morphology of the untreated and alkali treated fibers was studied by scanning electron microscopic method. The FTIR and chemical analyses indicated lowering of hemi-cellulose content by alkali treatment of the fibers. The X-ray diffraction revealed an increase in crystallinity of the fibers on alkali treatment. The thermal stability of the fibers was found to increase slightly by alkali treatment. The tensile properties of these fibers increased on alkali treatment. The mechanical and other physical properties indicated that these fibers were suitable as reinforcements for making the green composites.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61575170,61575168,and 61475133)the Basic Research Project of Hebei Province,China(Grant No.16961701D)+2 种基金the Natural Science Foundation of Hebei Province,China(Grant No.F2016203392)the Provincial College and University Natural Science Foundation of Hebei,China(Grant No.QN2016078)the Intramural Doctoral Foundation of Yanshan University,China(Grant No.B1011)
文摘The optical properties of graphene coated D-shaped single mode fiber and photonic crystal fiber are numerically analyzed. Enhancement of the graphene-light interaction is found in graphene coated D-shaped photonic crystal fiber,which introduces a tunable polarization of the D-shaped fiber by changing the chemical potential of the coated graphene.An optimal polarizer model is demonstrated with the extinction ratio of 66.26 dB/mm and the insertion loss of 9.4 dB/mm.The modulator extinction ratios of the TE mode and TM mode are 11.5 dB and 5 dB, respectively, with a device length of100 μm. This paper provides a theoretical reference for the optical property research of the graphene fiber.
文摘In order to improve the properties by chemical modification and to optimize the alkali concentration, we treated Borassus fruit fine fibers with aqueous sodium hydroxide solutions of different concentra- tions. In each case, the tensile properties of the fibers were determined. The morphology of the untreated and alkali treated fibers was observed using scanning electron microscope. The surface of the fibers became rough on alkali treatment. The tensile properties of the fibers improved on alkali treatment. The fibers attained maximum tensile properties when treated with 15% aqueous sodium hydroxide solution and decreased thereafter. The crystallinity index of the fibers showed a similar trend. The thermal stability of the alkali treated fibers was found to be higher than that of untreated fibers. Further, the char content was maximum for fibers treated with alkali having concentration of 15% and above. The chemical composition indicated that the percentageof a-cellulose was maximum when the fibers were treated with 15% aqueous sodium hydroxide solution and then decreased thereafter thus indicating the beginning of degradation of the fibers at higher concentrations. Thus, the optimum concentration of NaOH was established as 15% for alkali treatment of the Borassus fibers.
基金The work was supported by the National Key Research and Development Program of China(Grant Number 2016YFD0600402).
文摘Poplar is raw material for various panel, paper and fiber products. The 12 sample trees of clone Nanlin-895 from four spacings were destructively harvested after thirteen growing seasons to assess the influence of spacing on radial growth and wood properties. Spacing significantly affected tree-ring width and wood basic density (p < 0.05) but not fiber traits. The highest diameter and wood basic density at breast height (1.3 m) was in 6 m × 6 m and 3 m × 8 m spacings, respectively. However, no significant differences in tree-ring width, wood basic density and fiber traits were observed among the four sampling directions in discs taken at 1.3 m for each spacing. Growth rings from the pith and tree heights had significant effects on wood basic density and fiber anatomical characteristics, highlighting obvious temporal-spatial variations. Pearson correlation analysis showed a significantly negative relationship of tree-ring width to wood basic density, fiber length and fiber width, but a significantly positive relationship to hemicellulose. There was no relationship with cellulose and lignin contents. Based on a comprehensive assessment by the TOPSIS method, the 6 m × 6 m spacing is recommended for producing wood fiber at similar sites in the future.
