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
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
Pulpotomy,which belongs to vital pulp therapy,has become a strategy for managing pulpitis in recent decades.This minimally invasive treatment reflects the recognition of preserving healthy dental pulp and optimizing l...Pulpotomy,which belongs to vital pulp therapy,has become a strategy for managing pulpitis in recent decades.This minimally invasive treatment reflects the recognition of preserving healthy dental pulp and optimizing long-term patient-centered outcomes.Pulpotomy is categorized into partial pulpotomy(PP),the removal of a partial segment of the coronal pulp tissue,and full pulpotomy(FP),the removal of whole coronal pulp,which is followed by applying the biomaterials onto the remaining pulp tissue and ultimately restoring the tooth.Procedural decisions for the amount of pulp tissue removal or retention depend on the diagnostic of pulp vitality,the overall treatment plan,the patient’s general health status,and pulp inflammation reassessment during operation.This statement represents the consensus of an expert committee convened by the Society of Cariology and Endodontics,Chinese Stomatological Association.It addresses the current evidence to support the application of pulpotomy as a potential alternative to root canal treatment(RCT)on mature permanent teeth with pulpitis from a biological basis,the development of capping biomaterial,and the diagnostic considerations to evidence-based medicine.This expert statement intends to provide a clinical protocol of pulpotomy,which facilitates practitioners in choosing the optimal procedure and increasing their confidence in this rapidly evolving field.展开更多
Objective:To explore the obstructive factors in the behavior of medical staff during the implementation of respiratory rehabilitation process,and to provide a basis for the rehabilitation management intervention of CO...Objective:To explore the obstructive factors in the behavior of medical staff during the implementation of respiratory rehabilitation process,and to provide a basis for the rehabilitation management intervention of COPD.Methods:A descriptive nature research method was adopted.An interview outline was formulated based on the theoretical domain framework.From October to December 2024,15 medical staff from the respiratory department of a tertiary hospital in Shaanxi Province were selected for semi-structured interviews.The interview data were analyzed using the Colaizzi 7-step analysis method.Result:The analysis of this study found that the obstructive factors for medical staff to implement respiratory rehabilitation include five theoretical domains.The problems are respectively the lack of knowledge about respiratory rehabilitation and insufficient training intensity,the insufficient self-recognition of implementing respiratory rehabilitation,the low awareness rate of patients and the low cooperation degree,the insufficient provision of instruments and facilities,the lack of rehabilitation training venues and respiratory rehabilitation clinics,and the lack of scientific and standardized respiratory rehabilitation management processes.Conclusion:There are many obstructive factors affecting the implementation of respiratory rehabilitation by medical staff.Clinical managers should take corresponding measures,continuously improve the rehabilitation management strategies for COPD,and promote the clinical application of the best evidence for respiratory rehabilitation.展开更多
With the continuous emergence of new energy storage technology innovation in the field of electrochemical energy storage in China,different megawatt-grade lithium-ion battery energy storage projects have been implemen...With the continuous emergence of new energy storage technology innovation in the field of electrochemical energy storage in China,different megawatt-grade lithium-ion battery energy storage projects have been implemented,promoting the high-quality development of the energy storage industry.In the context of vigorously promoting the energy consumption revolution and enhancing the green transformation and development momentum,strengthening the safety construction of lithium-ion battery energy storage is of great importance to realize the transformation of energy structure and improve the utilization efficiency of renewable energy.However,in recent years,frequent safety accidents of lithium-ion battery energy storage power stations,such as fires,have aroused the public’s high attention to the construction of lithium-ion battery energy storage power stations,affecting the large-scale development of energy storage power stations.Based on this,this paper analyzes the safety risks of lithium-ion battery energy storage power stations and focuses on how to improve their safety performance.展开更多
Fiber optic sensing technology,with its low transmission loss,wide bandwidth,and broad dynamic range,offers significant advantages for high-sensitivity measurements.In this study,a multi-band soliton modulation system...Fiber optic sensing technology,with its low transmission loss,wide bandwidth,and broad dynamic range,offers significant advantages for high-sensitivity measurements.In this study,a multi-band soliton modulation system for stress sensing is proposed,utilizing Ti_(3)C_(2)T_(x)to generate ultrashort pulses.By applying stress to microfibers,dichromatic periodic multisoliton mode-locking at 1530 nm and 1555.2 nm is achieved.Vibrational mechanical stress further modulates cross-phase interactions between solitons,inducing higher-order bound solitons with small-amplitude oscillations.These dynamic processes reveal complex nonlinear optical behaviors and enhance sensing capabilities.Additionally,the feasibility of stable mode-locking of Ti_(3)C_(2)T_(x)in a 1µm multimode cavity is analyzed using the multimode nonlinear Schrodinger equation,and multisoliton states are experimentally demonstrated by integrating a 1µm narrow-linewidth ultrafast multimode laser with a stressed microfiber.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
To study the influence of silicon(Si)on 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane(CL-20),NC/CL-20 composite explosives and Si/NC/CL-20 composite explosives were prepared by the electrostatic spraying ...To study the influence of silicon(Si)on 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane(CL-20),NC/CL-20 composite explosives and Si/NC/CL-20 composite explosives were prepared by the electrostatic spraying method.The morphology,structure and thermal decomposition properties of the samples were analyzed using scanning electron microscopy(SEM),X-ray energy spectroscopy(EDS),infrared spectroscopy(FT-IR),and simultaneous thermal analyzer(TG-DSC).Additionally,the combustion process of the samples was tested using a high-speed camera.The results show that the addition of nano-Si contributes to the formation of composite explosives with regular morphology and smaller particle size.The Si/NC/CL-20 composite explosive has better and more uniform sphericity,with an average particle size of 73.4 nm,compared to the NC/CL-20 composite explosive.The Si/NC/CL-20 composite explosive which produced by the electrostatic spraying method,achieves physically uniform distribution of the components including NC,CL-20,Si.The addition of Si promotes the thermal decomposition of CL-20.In comparison to the NC/CL-20 composite explosive,the activation energy of the Si/NC/CL-20 composite explosive decreases by 16.78 kJ/mol,and the self-accelerated decomposition temperature and the critical temperature of thermal explosion decreases by 3.12 K and 2.61 K,respectively.Furthermore,Si/NC/CL-20 composite explosive has shorter ignition delay time and faster combustion rate compared to the NC/CL-20 composite explosive,which shows that Si can improve the combustion performance of CL-20.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.
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supported by the National Natural Science Foundation of China(82170941 and 82370948 to Lu Zhang,82071110 and 82230029 to Zhi Chen)the National Key R&D Program of China(2018YFC1105100)。
文摘Pulpotomy,which belongs to vital pulp therapy,has become a strategy for managing pulpitis in recent decades.This minimally invasive treatment reflects the recognition of preserving healthy dental pulp and optimizing long-term patient-centered outcomes.Pulpotomy is categorized into partial pulpotomy(PP),the removal of a partial segment of the coronal pulp tissue,and full pulpotomy(FP),the removal of whole coronal pulp,which is followed by applying the biomaterials onto the remaining pulp tissue and ultimately restoring the tooth.Procedural decisions for the amount of pulp tissue removal or retention depend on the diagnostic of pulp vitality,the overall treatment plan,the patient’s general health status,and pulp inflammation reassessment during operation.This statement represents the consensus of an expert committee convened by the Society of Cariology and Endodontics,Chinese Stomatological Association.It addresses the current evidence to support the application of pulpotomy as a potential alternative to root canal treatment(RCT)on mature permanent teeth with pulpitis from a biological basis,the development of capping biomaterial,and the diagnostic considerations to evidence-based medicine.This expert statement intends to provide a clinical protocol of pulpotomy,which facilitates practitioners in choosing the optimal procedure and increasing their confidence in this rapidly evolving field.
基金Shaanxi Provincial People’s Hospital Science and Technology Development Incubation Fund Program 2023(Project No.:2023HL-12)。
文摘Objective:To explore the obstructive factors in the behavior of medical staff during the implementation of respiratory rehabilitation process,and to provide a basis for the rehabilitation management intervention of COPD.Methods:A descriptive nature research method was adopted.An interview outline was formulated based on the theoretical domain framework.From October to December 2024,15 medical staff from the respiratory department of a tertiary hospital in Shaanxi Province were selected for semi-structured interviews.The interview data were analyzed using the Colaizzi 7-step analysis method.Result:The analysis of this study found that the obstructive factors for medical staff to implement respiratory rehabilitation include five theoretical domains.The problems are respectively the lack of knowledge about respiratory rehabilitation and insufficient training intensity,the insufficient self-recognition of implementing respiratory rehabilitation,the low awareness rate of patients and the low cooperation degree,the insufficient provision of instruments and facilities,the lack of rehabilitation training venues and respiratory rehabilitation clinics,and the lack of scientific and standardized respiratory rehabilitation management processes.Conclusion:There are many obstructive factors affecting the implementation of respiratory rehabilitation by medical staff.Clinical managers should take corresponding measures,continuously improve the rehabilitation management strategies for COPD,and promote the clinical application of the best evidence for respiratory rehabilitation.
基金This research was supported by the Science Foundation of Yantai Vocational College(No.2023XBYB008).
文摘With the continuous emergence of new energy storage technology innovation in the field of electrochemical energy storage in China,different megawatt-grade lithium-ion battery energy storage projects have been implemented,promoting the high-quality development of the energy storage industry.In the context of vigorously promoting the energy consumption revolution and enhancing the green transformation and development momentum,strengthening the safety construction of lithium-ion battery energy storage is of great importance to realize the transformation of energy structure and improve the utilization efficiency of renewable energy.However,in recent years,frequent safety accidents of lithium-ion battery energy storage power stations,such as fires,have aroused the public’s high attention to the construction of lithium-ion battery energy storage power stations,affecting the large-scale development of energy storage power stations.Based on this,this paper analyzes the safety risks of lithium-ion battery energy storage power stations and focuses on how to improve their safety performance.
基金supported by the National Natural Science Foundation of China(Grant Nos.12275240,12261131495,and 12475008)the Natural Science Foundation of Zhejiang Province(Grant No.LY24A050002).
文摘Fiber optic sensing technology,with its low transmission loss,wide bandwidth,and broad dynamic range,offers significant advantages for high-sensitivity measurements.In this study,a multi-band soliton modulation system for stress sensing is proposed,utilizing Ti_(3)C_(2)T_(x)to generate ultrashort pulses.By applying stress to microfibers,dichromatic periodic multisoliton mode-locking at 1530 nm and 1555.2 nm is achieved.Vibrational mechanical stress further modulates cross-phase interactions between solitons,inducing higher-order bound solitons with small-amplitude oscillations.These dynamic processes reveal complex nonlinear optical behaviors and enhance sensing capabilities.Additionally,the feasibility of stable mode-locking of Ti_(3)C_(2)T_(x)in a 1µm multimode cavity is analyzed using the multimode nonlinear Schrodinger equation,and multisoliton states are experimentally demonstrated by integrating a 1µm narrow-linewidth ultrafast multimode laser with a stressed microfiber.
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National Natural Science Foundation of China(No.22275150)。
文摘To study the influence of silicon(Si)on 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane(CL-20),NC/CL-20 composite explosives and Si/NC/CL-20 composite explosives were prepared by the electrostatic spraying method.The morphology,structure and thermal decomposition properties of the samples were analyzed using scanning electron microscopy(SEM),X-ray energy spectroscopy(EDS),infrared spectroscopy(FT-IR),and simultaneous thermal analyzer(TG-DSC).Additionally,the combustion process of the samples was tested using a high-speed camera.The results show that the addition of nano-Si contributes to the formation of composite explosives with regular morphology and smaller particle size.The Si/NC/CL-20 composite explosive has better and more uniform sphericity,with an average particle size of 73.4 nm,compared to the NC/CL-20 composite explosive.The Si/NC/CL-20 composite explosive which produced by the electrostatic spraying method,achieves physically uniform distribution of the components including NC,CL-20,Si.The addition of Si promotes the thermal decomposition of CL-20.In comparison to the NC/CL-20 composite explosive,the activation energy of the Si/NC/CL-20 composite explosive decreases by 16.78 kJ/mol,and the self-accelerated decomposition temperature and the critical temperature of thermal explosion decreases by 3.12 K and 2.61 K,respectively.Furthermore,Si/NC/CL-20 composite explosive has shorter ignition delay time and faster combustion rate compared to the NC/CL-20 composite explosive,which shows that Si can improve the combustion performance of CL-20.
