Spinal cord injury（SCI）is a devastating pathology,with significant physical,psychosocial,and financial burdens.Despite the severity of this disease,and our deepening understanding of the pathophysiology,we remain li...Spinal cord injury（SCI）is a devastating pathology,with significant physical,psychosocial,and financial burdens.Despite the severity of this disease,and our deepening understanding of the pathophysiology,we remain limited in our treatment options.Recent well-publicized studies have focused on the benefit of early surgical decompression in this patient population,展开更多
Evaluating performance of individual features of WiMAX technology is a topic of widespread discussion. Currently, there is no quantitative way of measuring WiMAX technology so that wireless operators can meet their de...Evaluating performance of individual features of WiMAX technology is a topic of widespread discussion. Currently, there is no quantitative way of measuring WiMAX technology so that wireless operators can meet their design objectives. This paper outlines a set of design criteria for WiMAX and provides a decision-making aid that ranks the importance of criteria using Analytic Hierarchy Process （AHP）. This ranking should sufficiently reflect market expectations of the relative importance of various design criteria. A model integrating AHP priorities with enhanced Data Envelopment Analysis （DEA） is the basis for formulating a technological value in simple, comparable format. A case study is provided to show how this technological value is used to evaluate a three year network deployment plan. In the future, this model could be extended to WiMAX equipment suppliers for the purpose of validating performance targets of individual criteria, and enhancing supplier roadmaps for future network development.展开更多
Corrosion control engineer: In the wilderness of the vast desert, accompanied by blowing sand, Chang Shuqiang has spent 14 of his youthful years along with the colorful paint that mirrors his splendid and sparkling li...Corrosion control engineer: In the wilderness of the vast desert, accompanied by blowing sand, Chang Shuqiang has spent 14 of his youthful years along with the colorful paint that mirrors his splendid and sparkling life. With the spray gun as his "weapon" and the brush as his "painting brush", he applies warm and anti-aging "masks" on field facilities with wisdom and effort.展开更多
College English teaching aims to cultivate the students＇ language applying competence, to help them broaden their mind, to absorb in foreign cultural essence and to improve cultural accomplishment. For college studen...College English teaching aims to cultivate the students＇ language applying competence, to help them broaden their mind, to absorb in foreign cultural essence and to improve cultural accomplishment. For college students, acquiring reading comprehension ability plays an essential part in understanding cultural distinctions and communicating effectively. However, the truth is that their reading comprehension ability and language applying competence prove not very optimistic. Therefore, the Present paper gives some insight to teachers on how reading English should be taught more effectively to college students.展开更多
Objective To test the practical effect of Decosept on surgical hand disinfection. Methods The operators were divided into two groups, 30 persons at random in each group. One group applied Decosept and the other one ap...Objective To test the practical effect of Decosept on surgical hand disinfection. Methods The operators were divided into two groups, 30 persons at random in each group. One group applied Decosept and the other one applied iodine to surgical hand disinfection according to Disinfection Technology Criteria. Neutralizer was affirmed by the test of neutralizer. Results The killing rate was 99.43% in Decosept group,and 99.26% in iodine group. There was no obvious difference between the two groups. June 2003 Vol12 No2 Conclusion When the operator brushed hands strictly according to the regulations on sugical hand disinfection, there was no bacteria on the two hands and no poison and side-effect. 4 refs,2 tabs.展开更多
There is growing interest in applying machine learning techniques in the research of materials science.However,although it is recognized that materials datasets are typically smaller and sometimes more diverse compare...There is growing interest in applying machine learning techniques in the research of materials science.However,although it is recognized that materials datasets are typically smaller and sometimes more diverse compared to other fields,the influence of availability of materials data on training machine learning models has not yet been studied,which prevents the possibility to establish accurate predictive rules using small materials datasets.Here we analyzed the fundamental interplay between the availability of materials data and the predictive capability of machine learning models.Instead of affecting the model precision directly,the effect of data size is mediated by the degree of freedom(DoF)of model,resulting in the phenomenon of association between precision and DoF.The appearance of precision–DoF association signals the issue of underfitting and is characterized by large bias of prediction,which consequently restricts the accurate prediction in unknown domains.We proposed to incorporate the crude estimation of property in the feature space to establish ML models using small sized materials data,which increases the accuracy of prediction without the cost of higher DoF.In three case studies of predicting the band gap of binary semiconductors,lattice thermal conductivity,and elastic properties of zeolites,the integration of crude estimation effectively boosted the predictive capability of machine learning models to state-of-art levels,demonstrating the generality of the proposed strategy to construct accurate machine learning models using small materials dataset.展开更多
Since the Fifth Plenary Session of the 19th Central Committee of the Communist Party of China(CPC)held in October 2020,all regions and departments have yielded positive results from their hard work to study,publicize,...Since the Fifth Plenary Session of the 19th Central Committee of the Communist Party of China(CPC)held in October 2020,all regions and departments have yielded positive results from their hard work to study,publicize,and apply the guiding principles from the Session in line with the Central Committee’s requirements.During this special seminar,the Central Committee hopes that we will gain an accurate understanding of the new stage of development through extensive discussions and exchanges of experience,with a view to fully implementing the new development philosophy,accelerating our efforts to create a new development dynamic,and promoting high-quality development during the 14th Five-Year Plan period(2021-2025).Doing so will see us setting the stage for building a modern socialist country in all respects.展开更多
Technology has always existed to mediate understanding of places and artefacts,from the invention of carving tools to make images of the game being hunted or sacred objects within ancient societies,to the digitisation...Technology has always existed to mediate understanding of places and artefacts,from the invention of carving tools to make images of the game being hunted or sacred objects within ancient societies,to the digitisation of places that new technologies have enabled in recent decades.The impetus to interpret the world and using tools to do so is ageold but has new connotations in the current era of Industry 4.0.We are not only digitising.展开更多
1 Introduction Emerging byte-addressable storage technologies,such as NVM(Non-Volatile Memory),provide a more cost-effective and larger-capacity alternative to DRAM(Dynamic Random Access Memory)[1],presenting new oppo...1 Introduction Emerging byte-addressable storage technologies,such as NVM(Non-Volatile Memory),provide a more cost-effective and larger-capacity alternative to DRAM(Dynamic Random Access Memory)[1],presenting new opportunities to address the high cost,limited capacity,and volatility of in-memory key-value(KV)stores.Numerous efforts have been dedicated to redesigning conventional structures on NVM.However,they were challenged by the substantial engineering cost and increased complexity to be integrated into existing systems.Thus,a general framework to apply existing indexes to KV stores on NVM becomes more attractive[2].展开更多
One of the primary goals of the space exploration community is to unambiguously detect past or present life outside of Earth.As such,a number of so-called life detection technologies,instruments,and approaches have be...One of the primary goals of the space exploration community is to unambiguously detect past or present life outside of Earth.As such,a number of so-called life detection technologies,instruments,and approaches have been applied as part of past,current,and future space missions.As astrobiology is a truly interdisciplinary field within the realm of space exploration with major contributions from physical and biological sciences(among others),recently there has been development of a number of relevant techniques from scientific fields that have yet to be fully applied to extraterrestrial life detection.As a culmination of the 2021 Blue Marble Space Institute of Science(BMSIS)Young Scientist Program(YSP),we present a number of techniques drawn from various fields(including,but not limited to,chemistry,materials science,biology,nanotechnology,medical science,astrophysics,and more)that either have been or have the potential to be applied to life detection research.These techniques broadly fall under three categories:instrumentation for in situ measurements of biosignatures within the solar system,calculations or observational techniques for remote measurements of exoplanet biosignatures,and technosignatures.We hope that this primer serves to inspire the field to consider applying more potential technologies from adjacent fields into any of these three categories of life detection.展开更多
As the world financial crisis has taken hold, China’s Central Government moved to increase the value-added tax (VAT) refund rates on several industries in an effort to boost production. For example, China has increas...As the world financial crisis has taken hold, China’s Central Government moved to increase the value-added tax (VAT) refund rates on several industries in an effort to boost production. For example, China has increased the tax rebate on textiles at least four times over the past six months,展开更多
In order to study the physiological or pathophysiological responsiveness, airway smooth muscle cells were isolated from the rat trachea and cultured. The tracheas of adult rats were obtained by autopsy within 30 minut...In order to study the physiological or pathophysiological responsiveness, airway smooth muscle cells were isolated from the rat trachea and cultured. The tracheas of adult rats were obtained by autopsy within 30 minutes after death and placed into a modified Hank’s solution. The experiments were performed on the large branches of the rat bronchi following entry into the lung. At the terminal level of the airway, no cartilage segments were seen. The muscle layer was prepared by careful removal of the connective tissue, cut into small pieces (1 mm3), and dispersed enzymatically (collagenase, elastase) into single cells. Freshly isolated cells could be used the same day. The small muscle pieces and isolated cells were cultured in the modified Hank’s or modified Eagle’s medium with 5% CO2 at 37℃ .展开更多
Nonlinear filtering of impulse response obtained by M-sequence correlation method under strong background noise is presented. The research shows that the new method works very efficiently without the need ...Nonlinear filtering of impulse response obtained by M-sequence correlation method under strong background noise is presented. The research shows that the new method works very efficiently without the need to cut off impulse response data. Even if the ratio of signal to noise is below -15 dB, the same decay curve ranges can still be obtained as when S/N > 40 dB展开更多
文摘Spinal cord injury（SCI）is a devastating pathology,with significant physical,psychosocial,and financial burdens.Despite the severity of this disease,and our deepening understanding of the pathophysiology,we remain limited in our treatment options.Recent well-publicized studies have focused on the benefit of early surgical decompression in this patient population,
文摘Evaluating performance of individual features of WiMAX technology is a topic of widespread discussion. Currently, there is no quantitative way of measuring WiMAX technology so that wireless operators can meet their design objectives. This paper outlines a set of design criteria for WiMAX and provides a decision-making aid that ranks the importance of criteria using Analytic Hierarchy Process （AHP）. This ranking should sufficiently reflect market expectations of the relative importance of various design criteria. A model integrating AHP priorities with enhanced Data Envelopment Analysis （DEA） is the basis for formulating a technological value in simple, comparable format. A case study is provided to show how this technological value is used to evaluate a three year network deployment plan. In the future, this model could be extended to WiMAX equipment suppliers for the purpose of validating performance targets of individual criteria, and enhancing supplier roadmaps for future network development.
文摘Corrosion control engineer: In the wilderness of the vast desert, accompanied by blowing sand, Chang Shuqiang has spent 14 of his youthful years along with the colorful paint that mirrors his splendid and sparkling life. With the spray gun as his "weapon" and the brush as his "painting brush", he applies warm and anti-aging "masks" on field facilities with wisdom and effort.
文摘College English teaching aims to cultivate the students＇ language applying competence, to help them broaden their mind, to absorb in foreign cultural essence and to improve cultural accomplishment. For college students, acquiring reading comprehension ability plays an essential part in understanding cultural distinctions and communicating effectively. However, the truth is that their reading comprehension ability and language applying competence prove not very optimistic. Therefore, the Present paper gives some insight to teachers on how reading English should be taught more effectively to college students.
文摘Objective To test the practical effect of Decosept on surgical hand disinfection. Methods The operators were divided into two groups, 30 persons at random in each group. One group applied Decosept and the other one applied iodine to surgical hand disinfection according to Disinfection Technology Criteria. Neutralizer was affirmed by the test of neutralizer. Results The killing rate was 99.43% in Decosept group,and 99.26% in iodine group. There was no obvious difference between the two groups. June 2003 Vol12 No2 Conclusion When the operator brushed hands strictly according to the regulations on sugical hand disinfection, there was no bacteria on the two hands and no poison and side-effect. 4 refs,2 tabs.
文摘There is growing interest in applying machine learning techniques in the research of materials science.However,although it is recognized that materials datasets are typically smaller and sometimes more diverse compared to other fields,the influence of availability of materials data on training machine learning models has not yet been studied,which prevents the possibility to establish accurate predictive rules using small materials datasets.Here we analyzed the fundamental interplay between the availability of materials data and the predictive capability of machine learning models.Instead of affecting the model precision directly,the effect of data size is mediated by the degree of freedom(DoF)of model,resulting in the phenomenon of association between precision and DoF.The appearance of precision–DoF association signals the issue of underfitting and is characterized by large bias of prediction,which consequently restricts the accurate prediction in unknown domains.We proposed to incorporate the crude estimation of property in the feature space to establish ML models using small sized materials data,which increases the accuracy of prediction without the cost of higher DoF.In three case studies of predicting the band gap of binary semiconductors,lattice thermal conductivity,and elastic properties of zeolites,the integration of crude estimation effectively boosted the predictive capability of machine learning models to state-of-art levels,demonstrating the generality of the proposed strategy to construct accurate machine learning models using small materials dataset.
文摘Since the Fifth Plenary Session of the 19th Central Committee of the Communist Party of China(CPC)held in October 2020,all regions and departments have yielded positive results from their hard work to study,publicize,and apply the guiding principles from the Session in line with the Central Committee’s requirements.During this special seminar,the Central Committee hopes that we will gain an accurate understanding of the new stage of development through extensive discussions and exchanges of experience,with a view to fully implementing the new development philosophy,accelerating our efforts to create a new development dynamic,and promoting high-quality development during the 14th Five-Year Plan period(2021-2025).Doing so will see us setting the stage for building a modern socialist country in all respects.
文摘Technology has always existed to mediate understanding of places and artefacts,from the invention of carving tools to make images of the game being hunted or sacred objects within ancient societies,to the digitisation of places that new technologies have enabled in recent decades.The impetus to interpret the world and using tools to do so is ageold but has new connotations in the current era of Industry 4.0.We are not only digitising.
基金grant funded by the Ministry of Education(Singapore)(Title:inPMdb:An in-Persistent Memory Database System,WBS NO:A8000082-00-00)Shanghai Engineering Research Center of Big Data Management.
文摘1 Introduction Emerging byte-addressable storage technologies,such as NVM(Non-Volatile Memory),provide a more cost-effective and larger-capacity alternative to DRAM(Dynamic Random Access Memory)[1],presenting new opportunities to address the high cost,limited capacity,and volatility of in-memory key-value(KV)stores.Numerous efforts have been dedicated to redesigning conventional structures on NVM.However,they were challenged by the substantial engineering cost and increased complexity to be integrated into existing systems.Thus,a general framework to apply existing indexes to KV stores on NVM becomes more attractive[2].
基金the primary outcome of a summer research intern-ship with the Blue Marble Space Institute of Science(BMSIS)2021 Young Scientist Program(YSP)G.E.L.is partially funded through the NASA Shared Services Center grant“An Integrated Approach Towards Understanding Planetary Environments For The Origin And Detectability Of Life”(grant number 80NSSC18M0064)。
文摘One of the primary goals of the space exploration community is to unambiguously detect past or present life outside of Earth.As such,a number of so-called life detection technologies,instruments,and approaches have been applied as part of past,current,and future space missions.As astrobiology is a truly interdisciplinary field within the realm of space exploration with major contributions from physical and biological sciences(among others),recently there has been development of a number of relevant techniques from scientific fields that have yet to be fully applied to extraterrestrial life detection.As a culmination of the 2021 Blue Marble Space Institute of Science(BMSIS)Young Scientist Program(YSP),we present a number of techniques drawn from various fields(including,but not limited to,chemistry,materials science,biology,nanotechnology,medical science,astrophysics,and more)that either have been or have the potential to be applied to life detection research.These techniques broadly fall under three categories:instrumentation for in situ measurements of biosignatures within the solar system,calculations or observational techniques for remote measurements of exoplanet biosignatures,and technosignatures.We hope that this primer serves to inspire the field to consider applying more potential technologies from adjacent fields into any of these three categories of life detection.
文摘As the world financial crisis has taken hold, China’s Central Government moved to increase the value-added tax (VAT) refund rates on several industries in an effort to boost production. For example, China has increased the tax rebate on textiles at least four times over the past six months,
文摘In order to study the physiological or pathophysiological responsiveness, airway smooth muscle cells were isolated from the rat trachea and cultured. The tracheas of adult rats were obtained by autopsy within 30 minutes after death and placed into a modified Hank’s solution. The experiments were performed on the large branches of the rat bronchi following entry into the lung. At the terminal level of the airway, no cartilage segments were seen. The muscle layer was prepared by careful removal of the connective tissue, cut into small pieces (1 mm3), and dispersed enzymatically (collagenase, elastase) into single cells. Freshly isolated cells could be used the same day. The small muscle pieces and isolated cells were cultured in the modified Hank’s or modified Eagle’s medium with 5% CO2 at 37℃ .
文摘Nonlinear filtering of impulse response obtained by M-sequence correlation method under strong background noise is presented. The research shows that the new method works very efficiently without the need to cut off impulse response data. Even if the ratio of signal to noise is below -15 dB, the same decay curve ranges can still be obtained as when S/N > 40 dB
