This paper, with the training of the international talents possessing remarkable English listening and speaking ability,mainly discusses the specific application of the cognitive strategy in different stages of colleg...This paper, with the training of the international talents possessing remarkable English listening and speaking ability,mainly discusses the specific application of the cognitive strategy in different stages of college English listening comprehension.It is expected that the paper can bring some useful enlightenments on the international talents training.展开更多
Under the background of industrial 4.0, due to the emergence of intelligent factory, end-to-end digital network can better service to create intelligent products, procedures and process, and able to manage complex thi...Under the background of industrial 4.0, due to the emergence of intelligent factory, end-to-end digital network can better service to create intelligent products, procedures and process, and able to manage complex things, and manufacture products more effi ciently. In industrial 4.0 era, people and technology constant interaction becomes possible. People will be the variable instead of constant in the production process. Each producer is likely to provide creative contributions to the fi nal shape of the individualized product, instead of changing mechanically a few innovators design into product. Therefore, exploring the industrial background of applied talents training mode, cultivating real talents to meet the needs of the intelligent technology become the priority of the development of advanced manufacturing technology under the background of industrial 4.0.展开更多
Heilongjiang reclamation area has made great progress since its development and construction, among which the agricultural and forestry colleges in China have played a key role in the input of talents for the producti...Heilongjiang reclamation area has made great progress since its development and construction, among which the agricultural and forestry colleges in China have played a key role in the input of talents for the production of reclamation area, and the spirit of the Great Wilderness has important strategic significance for the cultivation of agricultural and forestry talents. Taking Heilongjiang Bayi Agricultural University as an example, this paper analyzes the ways of the Great Northern Wilderness Spirit for cultivating application-oriented undergraduate talents in agricultural and forestry colleges, improving the curriculum system of undergraduate talents through innovation, strengthening the cultivation of students’ innovative ability, leading students’ scientific research and academic level, and enhancing students’ practical ability. To innovate the cultivation mode of application-oriented undergraduate talents in agricultural and forestry colleges under the guidance of the spirit of the Great Northern Wilderness, and to provide a reference mode for the cultivation of undergraduate talents in agricultural and forestry colleges in China.展开更多
Complex concentrated alloys(CCAs)containing the L2_(1)phase are recognized for their exceptional strength and thermal stability,positioning them as strong candidates for transformative applications in aerospace,energy...Complex concentrated alloys(CCAs)containing the L2_(1)phase are recognized for their exceptional strength and thermal stability,positioning them as strong candidates for transformative applications in aerospace,energy,and structural sectors.This investigation delves into the AlFexNiTiV_(40-x)(x=0,10,20,30,35,40;at%)CCAs,aiming to unlock the synergistic potential of BCC and L2_(1)phases.By conducting an in-depth analysis of microstructure,phase behavior,and mechanical properties,the intricate relationships between chemistry,structure,and properties are illuminated within this alloy system.The Al_(15)Fe_(35)Ni_(3)0Ti_(15)V_(5)alloy demonstrates remarkable mechanical properties,achieving a yield strength of 2140.9 MPa and ultimate compressive strength of 2699.7 MPa,primarily through solid solution strengthening and precipitation hardening.Notably,its low lattice mismatches and nanoprecipitate strengthening yield an impressive specific yield strength at 600℃(245.2 MPa(g·cm^(-3))^(-1)).Phase modulation achieves the synergistic optimization of specific strengths at both room and high temperatures in CCAs containing the L2_(1)phase,opening new avenues for designing advanced lightweight and high strength alloys for elevated-temperature applications.展开更多
In order to accelerate the construction of green production mode for tea in Hubei Province, improve the yield of tea and use efficiency of fertilizers, and improve the quality of tea, application effects of special sl...In order to accelerate the construction of green production mode for tea in Hubei Province, improve the yield of tea and use efficiency of fertilizers, and improve the quality of tea, application effects of special slow-release formula fertilizer in tea plants were investigated in Wuhan. The results showed that compared with conventional fertilization, application of tea plant-specific slow-release formula fertilizer improved the yield of tea by more than 30%. The amino acid content in tea was increased by 21.05% and 30.82%, respectively, and the income was increased 27 696 （33.88%） and 27 624 （33.79%） yuan/hm2, respectively.展开更多
English grammar is at any time the important part of English learning,even if under the implementation of the New Course Standard.However,English grammar is considered to be difficult due to its complexity.My paper he...English grammar is at any time the important part of English learning,even if under the implementation of the New Course Standard.However,English grammar is considered to be difficult due to its complexity.My paper here is to explore and study the application of mathematic ideas and methods in English grammar teaching and learning,helping to facilitate the students to master the regularities,accuracy and systematization of English grammar,to improve learning efficiency,to enhance the learners' logic thinking,and at the same time,pointing out the specific strategies in practical use,which can be of great significance to the students' innovation and creativity and the students' development of the ability of cross-subject study advocated by both the Quality-Education and New Curriculum Standard.展开更多
Formative evaluation is relatively more scientific and accurate as compared to traditional teaching evaluation.Formative evaluation is a method of professional evaluation of students’learning process,which is very im...Formative evaluation is relatively more scientific and accurate as compared to traditional teaching evaluation.Formative evaluation is a method of professional evaluation of students’learning process,which is very important in the entire course of teaching.In the actual teaching process,formative evaluation can better help teachers understand the situation of students,and take effective improvement measures to address the problems existing in the process of learning.As a contribution to the teaching of foreign languages in the colleges and universities,this paper will start with an introduction of formative evaluation,and then the application of formative evaluation in teaching.展开更多
The discovery of induced pluripotent stem cells (iPSCs) unraveled a mystery in stem cell research, after identification of four re-programming factors for generating pluripotent stem cells without the need of embryos....The discovery of induced pluripotent stem cells (iPSCs) unraveled a mystery in stem cell research, after identification of four re-programming factors for generating pluripotent stem cells without the need of embryos. This breakthrough in generating iPSCs from somatic cells has overcome the ethical issues and immune rejection involved in the use of human embryonic stem cells. Hence, iPSCs form a great potential source for developing disease models, drug toxicity screening and cell-based therapies. These cells have the potential to differentiate into desired cell types, including hepatocytes, under in vitro as well as under in vivo conditions given the proper microenvironment. iPSC-derived hepatocytes could be useful as an unlimited source, which can be utilized in disease modeling, drug toxicity testing and producing autologous cell therapies that would avoid immune rejection and enable correction of gene defects prior to cell transplantation. In this review, we discuss the induction methods, role of reprogramming factors, and characterization of iPSCs, along with hepatocyte differentiation from iPSCs and potential applications. Further, we discuss the location and detection of liver stem cells and their role in liver regeneration. Although tumor formation and genetic mutations are a cause of concern, iPSCs still form a promising source for clinical applications.展开更多
The water Cherenkov detector array(WCDA) is an important part of the large high-altitude air shower observatory(LHAASO),which is in a research and development phase.The central scientific goal of LHAASO is to explore ...The water Cherenkov detector array(WCDA) is an important part of the large high-altitude air shower observatory(LHAASO),which is in a research and development phase.The central scientific goal of LHAASO is to explore the origin of high-energy cosmic rays of the universe and to push forward the frontier of new physics.To simplify the WCDA's readout electronics,a prototype of a front-end readout for an application-specific integrated circuit(ASIC) is designed based on the timeover-threshold method to achieve charge-to-time conversion.High-precision time measurement and charge measurement are necessary over a full dynamic range[1-4000photoelectrons(P.E.)].To evaluate the performance of this ASIC,a test system is designed that includes the front-end ASIC test module,digitization module,and test software.The first module needs to be customized for different ASIC versions,whereas the digitization module and test software are tested for general-purpose use.In the digitization module,a field programmable gate array-based time-todigital converter is designed with a bin size of 333 ps,which also integrates an inter-integrated circuit to configure the ASIC test module,and a universal serial bus interface is designed to transfer data to the remote computer.Test results indicate that the time resolution is better than 0.5 ns,and the charge resolution is better than 30%root mean square(RMS) at 1 P.E.and 3%RMS at 4000 P.E.,which are beyond the application requirements.展开更多
The single reference second order Brillouin-Wigner perturbation theory recently developed, which eliminates its size-extensivity error, has been generalized to state-specific, multi-reference （SS-MR）, BWPT2 providin...The single reference second order Brillouin-Wigner perturbation theory recently developed, which eliminates its size-extensivity error, has been generalized to state-specific, multi-reference （SS-MR）, BWPT2 providing a size-extensive correction to the electron correlation problem for systems that demand the use of a multi-reference function. Illustrative numerical tests of the size-extensivity corrections are made for widely used molecules in their ground states, which are pronounced multi-reference characteristics. We have implemented two-reference and three-reference cases for CH2, BH and bond breaking process in the ground states of HF molecules. The results are compared with the rigorously size-extensive methods such as the M^ller-Plesset perturbation theory, i.e., MP2, full configuration interaction （Full-CI） and allied methods using the same basis sets.展开更多
The great evolution of the mobile market during the last years caused some fragmentation of the mobile platforms namely through the existence of different programming languages and software development tools for each ...The great evolution of the mobile market during the last years caused some fragmentation of the mobile platforms namely through the existence of different programming languages and software development tools for each platform. This fact can be an obstacle and increases the development complexity and costs when we want to develop mobile applications for multiple platforms. The XIS-Mobile domain specific language (defined as a UML profile) and its MDD-based framework address this problem by proposing platform-independent models to describe mobile applications and from them automatically generate the application’s source code. Many issues arose during an iterative process of evaluation which originated changes and the evolution of XIS-Mobile. This paper presents the results of the evaluation of XIS-Mobile (both the language and the companion framework) obtained through the implementation of a case study and by conducting a user session, and discusses its benefits and challenges.展开更多
While traditional Chinese medicine has displayed a positive and effective role in saving lives of COVID‑19 patients,Tuina,which is an important component in Chinese medicine,has also shown its merits in enhancing the ...While traditional Chinese medicine has displayed a positive and effective role in saving lives of COVID‑19 patients,Tuina,which is an important component in Chinese medicine,has also shown its merits in enhancing the immune function and relieving symptoms in COVID‑19 patients.This article elaborates the long history of Tuina in treating and preventing epidemic diseases and its effect in improving the immune function.It also introduces some special Tuina methods,for instance,sputum drainage by the back‑patting method to enable the discharge of sputum;slant‑scrubbing method applied on the hypochondriac regions to bring the effect of soothing the liver to regulate qi,which may also relieve anxiety of patients with COVID‑19;and spine‑pinching method to enhance human resistance to diseases,which is more suitable for the elderly and for children with mild or common types of COVID‑19 and can also be used for health care and disease prevention among the general population.Tuina methods for children using the common children’s specific Tuina points and manipulations to improve children’s body constitution are also mentioned in the article.Self‑acupoint Tuina for health care,including acupoints for prevention purposes,acupoints for early clinical stage(mild stage)and recovery stage,as well as acupoints for children health care and specific operations,is also illustrated in the article.Moreover,basic exercises for health care,such as eight‑section brocade,Shaolin internal exercises,six‑character formula,and change of tendons,are also presented.In the final analysis,this article is aimed at some ideas and feasible applications of Tuina therapy in the prevention and treatment of COVID‑19,in the hope to provide some worthy experience and introduce methods in preventing and fighting against COVID‑19 to people all over the world.展开更多
Surface distribution and seasonal variation of alkalinity and specific alkalinity in Kuroshio area of the East ChinaSea and their application to the water mass tracing are discussed in this paper. Results show a disti...Surface distribution and seasonal variation of alkalinity and specific alkalinity in Kuroshio area of the East ChinaSea and their application to the water mass tracing are discussed in this paper. Results show a distinct seasonal variation of the alkalinity, which is concerned with the process of vertical mixing. Different specific alkalinity in various water masses has been found. On the basis of the difference of the specific alkalinity and the distribution of alkalinity, two water fronts in summer season, located at 27°-30°N and 124°-1 27°E, (Ⅰ), and at the northern waters about one latitude from the Taiwan Island, (Ⅱ); one in winter season at about one longitude from coast of mainland of China and 26°-30°N were found. In summer season, about 1-2 longitudes eastward shift of front (Ⅰ) is found by comparison of data in May and August. And the high alkalinity of the northern East China Sea in summer season may be caused by the Huanghe River runoff flowing southward along with the Huanghai Sea Coastal Current.展开更多
This paper will provide some insights on the application of Field Programmable Gate Array (FPGA) in process tomography. The focus of this paper will be to investigate the performance of the technology with respect to ...This paper will provide some insights on the application of Field Programmable Gate Array (FPGA) in process tomography. The focus of this paper will be to investigate the performance of the technology with respect to various tomography systems and comparison to other similar technologies including the Application Specific Integrated Circuit (ASIC), Graphics Processing Unit (GPU) and the microcontroller. Fundamentally, the FPGA is primarily used in the Data Acquisition System (DAQ) due to its better performance and better trade-off as compared to competitor technologies. However, the drawback of using FPGA is that it is relatively more expensive.展开更多
While traditional Chinese medicine has displayed a positive and effective role in saving lives of COVID-19 patients,Tuina,which is an important component in Chinese medicine,has also shown its merits in enhancing the ...While traditional Chinese medicine has displayed a positive and effective role in saving lives of COVID-19 patients,Tuina,which is an important component in Chinese medicine,has also shown its merits in enhancing the immune function and relieving symptoms in COVID-19 patients.This article elaborates the long history of Tuina in treating and preventing epidemic diseases and its effect in improving the immune function.It also introduces some special Tuina methods,lor instance,sputum drainage by the back-patting method to enable the discharge of sputum;slant-scrubbing method applied on the hypochondriac regions to bring the effect of soothing the liver to regulate qi,which may also relieve anxiety of patients with COVID-19;and spine-pinching method to enhance human resistance to diseases,which is more suitable for the elderly and for children with mild or common types of COVID-19 and can also be used for health care and disease prevention among the general population.Tuina methods for children using the common childreifs specific Tuina points and manipulations to improve children’s body constitution are also mentioned in the article.Self-acupoint Tuina for health care,including acupoints for prevention purposes,acupoints for early clinical stage(mild stage)and recovery stage,as well as acupoints for children health care and specific operations,is also illustrated in the article.Moreover,basic exercises for health care,such as eight-section brocade,Shaolin internal exercises,six-character formula,and change of tendons,are also presented.In the final analysis,this article is aimed at some ideas and feasible applications of Tuina therapy in the prevention and treatment of COVID-19,in the hope to provide some worthy experience and introduce methods in preventing and fighting against COVID-19 to people all over the world.展开更多
PLC technology in the specific application of electrical engineering automation control, mainly as the existence of the processor. Compared with the traditional system, it has incomparable advantages, which are embodi...PLC technology in the specific application of electrical engineering automation control, mainly as the existence of the processor. Compared with the traditional system, it has incomparable advantages, which are embodied in relatively high automation and reliability. So the effective application of PLC technology in electrical engineering automation control can play a very important role, give full play to and use the important role of PLC technology, help to realize the development of electrical engineering automation. This paper mainly focuses on the specific application of PLC technology in electrical engineering automation control.展开更多
With the continuous development and progress of society, geological prospecting and resource exploration have also put forward new requirements. At present, the most critical technology in geological prospecting and r...With the continuous development and progress of society, geological prospecting and resource exploration have also put forward new requirements. At present, the most critical technology in geological prospecting and resource exploration is geophysical exploration technology. The level of geophysical exploration technology itself has a very direct relationship with the ability of engineers and technicians, and will also directly affect the accuracy of geological resource exploration. Therefore, relevant operators and technicians should also strengthen the operation and application of geophysical exploration technology, fully grasp and utilize its principles, improve work efficiency, select scientific and reasonable geophysical exploration technology, and carry out exploration and analysis of resources. This paper mainly analyzes the basic principles of geophysical exploration technology, as well as the principles and techniques of the specific application of geophysical exploration technology in geological exploration, and carefully analyzes and explores the relevant principles.展开更多
In recent years, China's air quality has declined seriously, and the reserves of various resources are also decreasing. The ecological environment has been seriously threatened, and people's living environment...In recent years, China's air quality has declined seriously, and the reserves of various resources are also decreasing. The ecological environment has been seriously threatened, and people's living environment is deteriorating. Based on this, the relevant technical personnel must pay attention to the damage to the environment caused by the design and construction of construction projects, and constantly develop new materials to improve the environmental protection of architectural design. At the same time, construction personnel can optimize and improve construction technology in combination with the development of science and technology, so as to improve the utilization rate of various resources and reduce environmental pollution. The application of new materials and new technologies can effectively improve the current ecological environment, effectively improve people's living and working environment, and promote the sustainable development of the construction industry to a great extent. Next, the article discusses the application of new technology and new materials in architectural design.展开更多
In the current building construction, BIM technology is very widely used, because it has a strong visual, virtual operation function, as long as the building model is established, and you can complete a variety of opt...In the current building construction, BIM technology is very widely used, because it has a strong visual, virtual operation function, as long as the building model is established, and you can complete a variety of optimization design. In recent years, the construction of expressways has become an important part of urban expansion and development. The number of expressways built has gradually increased, which has brought a strong promotion to the country and played a role in ensuring the goal of building a moderately prosperous society in an all-round way. When BIM technology is combined with highway construction, it shows the incomparable advantages of other information technology, which not only optimizes the design of prefabricated components, but also improves the technical level of the overall construction. Based on this, this paper takes the BIM technology as the core, the highway construction as the background, the application of the application of BIM technology for in-depth analysis, and combined with the practice, to explore the advantages of simulation and modeling.展开更多
Senior high school is an important stage for students to learn and a key time for students to enter the desired university. For junior high school knowledge, the difficulty of senior high school knowledge also rises s...Senior high school is an important stage for students to learn and a key time for students to enter the desired university. For junior high school knowledge, the difficulty of senior high school knowledge also rises sharply compared with junior high school. All subjects require stronger logical thinking and divergent thinking. As an important subject in senior high school, chemistry is very comprehensive and experimental. For high school students, they are facing great pressure from the college entrance examination and their studies. Therefore, excellent problem-solving skills can help students to learn more efficiently, and can also promote the cultivation of logical thinking ability, eventually forming a virtuous circle, making learning easier. As a common method in chemical problem solving, conservation method can greatly save students' time and improve the correct rate of problem solving, thus improving learning efficiency. This paper gives a brief introduction to the application of conservation method in high school chemistry problem solving, hoping to be helpful to the students.展开更多
文摘This paper, with the training of the international talents possessing remarkable English listening and speaking ability,mainly discusses the specific application of the cognitive strategy in different stages of college English listening comprehension.It is expected that the paper can bring some useful enlightenments on the international talents training.
文摘Under the background of industrial 4.0, due to the emergence of intelligent factory, end-to-end digital network can better service to create intelligent products, procedures and process, and able to manage complex things, and manufacture products more effi ciently. In industrial 4.0 era, people and technology constant interaction becomes possible. People will be the variable instead of constant in the production process. Each producer is likely to provide creative contributions to the fi nal shape of the individualized product, instead of changing mechanically a few innovators design into product. Therefore, exploring the industrial background of applied talents training mode, cultivating real talents to meet the needs of the intelligent technology become the priority of the development of advanced manufacturing technology under the background of industrial 4.0.
文摘Heilongjiang reclamation area has made great progress since its development and construction, among which the agricultural and forestry colleges in China have played a key role in the input of talents for the production of reclamation area, and the spirit of the Great Wilderness has important strategic significance for the cultivation of agricultural and forestry talents. Taking Heilongjiang Bayi Agricultural University as an example, this paper analyzes the ways of the Great Northern Wilderness Spirit for cultivating application-oriented undergraduate talents in agricultural and forestry colleges, improving the curriculum system of undergraduate talents through innovation, strengthening the cultivation of students’ innovative ability, leading students’ scientific research and academic level, and enhancing students’ practical ability. To innovate the cultivation mode of application-oriented undergraduate talents in agricultural and forestry colleges under the guidance of the spirit of the Great Northern Wilderness, and to provide a reference mode for the cultivation of undergraduate talents in agricultural and forestry colleges in China.
基金supported by the National Natural Science Foundation of China(Nos.52301043 and 51871077)Guangdong Basic and Applied Basic Research Foundation(No.2021A1515012626),Shenzhen Knowledge Innovation Plan-Fundamental Research(Discipline Distribution)(No.JCYJ20180507184623297)+1 种基金Shenzhen Science and Technology Plan-Technology Innovation(No.KQJSCX20180328165656256)the Startup Foundation from Shenzhen(Nos.NA25501001,and NA11409005).
文摘Complex concentrated alloys(CCAs)containing the L2_(1)phase are recognized for their exceptional strength and thermal stability,positioning them as strong candidates for transformative applications in aerospace,energy,and structural sectors.This investigation delves into the AlFexNiTiV_(40-x)(x=0,10,20,30,35,40;at%)CCAs,aiming to unlock the synergistic potential of BCC and L2_(1)phases.By conducting an in-depth analysis of microstructure,phase behavior,and mechanical properties,the intricate relationships between chemistry,structure,and properties are illuminated within this alloy system.The Al_(15)Fe_(35)Ni_(3)0Ti_(15)V_(5)alloy demonstrates remarkable mechanical properties,achieving a yield strength of 2140.9 MPa and ultimate compressive strength of 2699.7 MPa,primarily through solid solution strengthening and precipitation hardening.Notably,its low lattice mismatches and nanoprecipitate strengthening yield an impressive specific yield strength at 600℃(245.2 MPa(g·cm^(-3))^(-1)).Phase modulation achieves the synergistic optimization of specific strengths at both room and high temperatures in CCAs containing the L2_(1)phase,opening new avenues for designing advanced lightweight and high strength alloys for elevated-temperature applications.
基金Supported by National Key Research and Development Project of China(2016YFD0200900)Earmarked Fund for China Agriculture Research System(CARS-23)~~
文摘In order to accelerate the construction of green production mode for tea in Hubei Province, improve the yield of tea and use efficiency of fertilizers, and improve the quality of tea, application effects of special slow-release formula fertilizer in tea plants were investigated in Wuhan. The results showed that compared with conventional fertilization, application of tea plant-specific slow-release formula fertilizer improved the yield of tea by more than 30%. The amino acid content in tea was increased by 21.05% and 30.82%, respectively, and the income was increased 27 696 （33.88%） and 27 624 （33.79%） yuan/hm2, respectively.
文摘English grammar is at any time the important part of English learning,even if under the implementation of the New Course Standard.However,English grammar is considered to be difficult due to its complexity.My paper here is to explore and study the application of mathematic ideas and methods in English grammar teaching and learning,helping to facilitate the students to master the regularities,accuracy and systematization of English grammar,to improve learning efficiency,to enhance the learners' logic thinking,and at the same time,pointing out the specific strategies in practical use,which can be of great significance to the students' innovation and creativity and the students' development of the ability of cross-subject study advocated by both the Quality-Education and New Curriculum Standard.
文摘Formative evaluation is relatively more scientific and accurate as compared to traditional teaching evaluation.Formative evaluation is a method of professional evaluation of students’learning process,which is very important in the entire course of teaching.In the actual teaching process,formative evaluation can better help teachers understand the situation of students,and take effective improvement measures to address the problems existing in the process of learning.As a contribution to the teaching of foreign languages in the colleges and universities,this paper will start with an introduction of formative evaluation,and then the application of formative evaluation in teaching.
基金Supported by Asian Healthcare Foundation, Hyderabad, India
文摘The discovery of induced pluripotent stem cells (iPSCs) unraveled a mystery in stem cell research, after identification of four re-programming factors for generating pluripotent stem cells without the need of embryos. This breakthrough in generating iPSCs from somatic cells has overcome the ethical issues and immune rejection involved in the use of human embryonic stem cells. Hence, iPSCs form a great potential source for developing disease models, drug toxicity screening and cell-based therapies. These cells have the potential to differentiate into desired cell types, including hepatocytes, under in vitro as well as under in vivo conditions given the proper microenvironment. iPSC-derived hepatocytes could be useful as an unlimited source, which can be utilized in disease modeling, drug toxicity testing and producing autologous cell therapies that would avoid immune rejection and enable correction of gene defects prior to cell transplantation. In this review, we discuss the induction methods, role of reprogramming factors, and characterization of iPSCs, along with hepatocyte differentiation from iPSCs and potential applications. Further, we discuss the location and detection of liver stem cells and their role in liver regeneration. Although tumor formation and genetic mutations are a cause of concern, iPSCs still form a promising source for clinical applications.
基金supported by the Knowledge Innovation Program of the Chinese Academy of Sciences(KJCX2-YW-N27)the CAS Center for Excellence in Particle Physics(CCEPP)
文摘The water Cherenkov detector array(WCDA) is an important part of the large high-altitude air shower observatory(LHAASO),which is in a research and development phase.The central scientific goal of LHAASO is to explore the origin of high-energy cosmic rays of the universe and to push forward the frontier of new physics.To simplify the WCDA's readout electronics,a prototype of a front-end readout for an application-specific integrated circuit(ASIC) is designed based on the timeover-threshold method to achieve charge-to-time conversion.High-precision time measurement and charge measurement are necessary over a full dynamic range[1-4000photoelectrons(P.E.)].To evaluate the performance of this ASIC,a test system is designed that includes the front-end ASIC test module,digitization module,and test software.The first module needs to be customized for different ASIC versions,whereas the digitization module and test software are tested for general-purpose use.In the digitization module,a field programmable gate array-based time-todigital converter is designed with a bin size of 333 ps,which also integrates an inter-integrated circuit to configure the ASIC test module,and a universal serial bus interface is designed to transfer data to the remote computer.Test results indicate that the time resolution is better than 0.5 ns,and the charge resolution is better than 30%root mean square(RMS) at 1 P.E.and 3%RMS at 4000 P.E.,which are beyond the application requirements.
基金Supported by the Scientific and Technological Research Council of Turkey(TUBITAK)under Grant No 2219-1/2013
文摘The single reference second order Brillouin-Wigner perturbation theory recently developed, which eliminates its size-extensivity error, has been generalized to state-specific, multi-reference （SS-MR）, BWPT2 providing a size-extensive correction to the electron correlation problem for systems that demand the use of a multi-reference function. Illustrative numerical tests of the size-extensivity corrections are made for widely used molecules in their ground states, which are pronounced multi-reference characteristics. We have implemented two-reference and three-reference cases for CH2, BH and bond breaking process in the ground states of HF molecules. The results are compared with the rigorously size-extensive methods such as the M^ller-Plesset perturbation theory, i.e., MP2, full configuration interaction （Full-CI） and allied methods using the same basis sets.
文摘The great evolution of the mobile market during the last years caused some fragmentation of the mobile platforms namely through the existence of different programming languages and software development tools for each platform. This fact can be an obstacle and increases the development complexity and costs when we want to develop mobile applications for multiple platforms. The XIS-Mobile domain specific language (defined as a UML profile) and its MDD-based framework address this problem by proposing platform-independent models to describe mobile applications and from them automatically generate the application’s source code. Many issues arose during an iterative process of evaluation which originated changes and the evolution of XIS-Mobile. This paper presents the results of the evaluation of XIS-Mobile (both the language and the companion framework) obtained through the implementation of a case study and by conducting a user session, and discusses its benefits and challenges.
文摘While traditional Chinese medicine has displayed a positive and effective role in saving lives of COVID‑19 patients,Tuina,which is an important component in Chinese medicine,has also shown its merits in enhancing the immune function and relieving symptoms in COVID‑19 patients.This article elaborates the long history of Tuina in treating and preventing epidemic diseases and its effect in improving the immune function.It also introduces some special Tuina methods,for instance,sputum drainage by the back‑patting method to enable the discharge of sputum;slant‑scrubbing method applied on the hypochondriac regions to bring the effect of soothing the liver to regulate qi,which may also relieve anxiety of patients with COVID‑19;and spine‑pinching method to enhance human resistance to diseases,which is more suitable for the elderly and for children with mild or common types of COVID‑19 and can also be used for health care and disease prevention among the general population.Tuina methods for children using the common children’s specific Tuina points and manipulations to improve children’s body constitution are also mentioned in the article.Self‑acupoint Tuina for health care,including acupoints for prevention purposes,acupoints for early clinical stage(mild stage)and recovery stage,as well as acupoints for children health care and specific operations,is also illustrated in the article.Moreover,basic exercises for health care,such as eight‑section brocade,Shaolin internal exercises,six‑character formula,and change of tendons,are also presented.In the final analysis,this article is aimed at some ideas and feasible applications of Tuina therapy in the prevention and treatment of COVID‑19,in the hope to provide some worthy experience and introduce methods in preventing and fighting against COVID‑19 to people all over the world.
文摘Surface distribution and seasonal variation of alkalinity and specific alkalinity in Kuroshio area of the East ChinaSea and their application to the water mass tracing are discussed in this paper. Results show a distinct seasonal variation of the alkalinity, which is concerned with the process of vertical mixing. Different specific alkalinity in various water masses has been found. On the basis of the difference of the specific alkalinity and the distribution of alkalinity, two water fronts in summer season, located at 27°-30°N and 124°-1 27°E, (Ⅰ), and at the northern waters about one latitude from the Taiwan Island, (Ⅱ); one in winter season at about one longitude from coast of mainland of China and 26°-30°N were found. In summer season, about 1-2 longitudes eastward shift of front (Ⅰ) is found by comparison of data in May and August. And the high alkalinity of the northern East China Sea in summer season may be caused by the Huanghe River runoff flowing southward along with the Huanghai Sea Coastal Current.
文摘This paper will provide some insights on the application of Field Programmable Gate Array (FPGA) in process tomography. The focus of this paper will be to investigate the performance of the technology with respect to various tomography systems and comparison to other similar technologies including the Application Specific Integrated Circuit (ASIC), Graphics Processing Unit (GPU) and the microcontroller. Fundamentally, the FPGA is primarily used in the Data Acquisition System (DAQ) due to its better performance and better trade-off as compared to competitor technologies. However, the drawback of using FPGA is that it is relatively more expensive.
文摘While traditional Chinese medicine has displayed a positive and effective role in saving lives of COVID-19 patients,Tuina,which is an important component in Chinese medicine,has also shown its merits in enhancing the immune function and relieving symptoms in COVID-19 patients.This article elaborates the long history of Tuina in treating and preventing epidemic diseases and its effect in improving the immune function.It also introduces some special Tuina methods,lor instance,sputum drainage by the back-patting method to enable the discharge of sputum;slant-scrubbing method applied on the hypochondriac regions to bring the effect of soothing the liver to regulate qi,which may also relieve anxiety of patients with COVID-19;and spine-pinching method to enhance human resistance to diseases,which is more suitable for the elderly and for children with mild or common types of COVID-19 and can also be used for health care and disease prevention among the general population.Tuina methods for children using the common childreifs specific Tuina points and manipulations to improve children’s body constitution are also mentioned in the article.Self-acupoint Tuina for health care,including acupoints for prevention purposes,acupoints for early clinical stage(mild stage)and recovery stage,as well as acupoints for children health care and specific operations,is also illustrated in the article.Moreover,basic exercises for health care,such as eight-section brocade,Shaolin internal exercises,six-character formula,and change of tendons,are also presented.In the final analysis,this article is aimed at some ideas and feasible applications of Tuina therapy in the prevention and treatment of COVID-19,in the hope to provide some worthy experience and introduce methods in preventing and fighting against COVID-19 to people all over the world.
文摘PLC technology in the specific application of electrical engineering automation control, mainly as the existence of the processor. Compared with the traditional system, it has incomparable advantages, which are embodied in relatively high automation and reliability. So the effective application of PLC technology in electrical engineering automation control can play a very important role, give full play to and use the important role of PLC technology, help to realize the development of electrical engineering automation. This paper mainly focuses on the specific application of PLC technology in electrical engineering automation control.
文摘With the continuous development and progress of society, geological prospecting and resource exploration have also put forward new requirements. At present, the most critical technology in geological prospecting and resource exploration is geophysical exploration technology. The level of geophysical exploration technology itself has a very direct relationship with the ability of engineers and technicians, and will also directly affect the accuracy of geological resource exploration. Therefore, relevant operators and technicians should also strengthen the operation and application of geophysical exploration technology, fully grasp and utilize its principles, improve work efficiency, select scientific and reasonable geophysical exploration technology, and carry out exploration and analysis of resources. This paper mainly analyzes the basic principles of geophysical exploration technology, as well as the principles and techniques of the specific application of geophysical exploration technology in geological exploration, and carefully analyzes and explores the relevant principles.
文摘In recent years, China's air quality has declined seriously, and the reserves of various resources are also decreasing. The ecological environment has been seriously threatened, and people's living environment is deteriorating. Based on this, the relevant technical personnel must pay attention to the damage to the environment caused by the design and construction of construction projects, and constantly develop new materials to improve the environmental protection of architectural design. At the same time, construction personnel can optimize and improve construction technology in combination with the development of science and technology, so as to improve the utilization rate of various resources and reduce environmental pollution. The application of new materials and new technologies can effectively improve the current ecological environment, effectively improve people's living and working environment, and promote the sustainable development of the construction industry to a great extent. Next, the article discusses the application of new technology and new materials in architectural design.
文摘In the current building construction, BIM technology is very widely used, because it has a strong visual, virtual operation function, as long as the building model is established, and you can complete a variety of optimization design. In recent years, the construction of expressways has become an important part of urban expansion and development. The number of expressways built has gradually increased, which has brought a strong promotion to the country and played a role in ensuring the goal of building a moderately prosperous society in an all-round way. When BIM technology is combined with highway construction, it shows the incomparable advantages of other information technology, which not only optimizes the design of prefabricated components, but also improves the technical level of the overall construction. Based on this, this paper takes the BIM technology as the core, the highway construction as the background, the application of the application of BIM technology for in-depth analysis, and combined with the practice, to explore the advantages of simulation and modeling.
文摘Senior high school is an important stage for students to learn and a key time for students to enter the desired university. For junior high school knowledge, the difficulty of senior high school knowledge also rises sharply compared with junior high school. All subjects require stronger logical thinking and divergent thinking. As an important subject in senior high school, chemistry is very comprehensive and experimental. For high school students, they are facing great pressure from the college entrance examination and their studies. Therefore, excellent problem-solving skills can help students to learn more efficiently, and can also promote the cultivation of logical thinking ability, eventually forming a virtuous circle, making learning easier. As a common method in chemical problem solving, conservation method can greatly save students' time and improve the correct rate of problem solving, thus improving learning efficiency. This paper gives a brief introduction to the application of conservation method in high school chemistry problem solving, hoping to be helpful to the students.
