The theoretical and applied characteristics of educational psychology courses in colleges and universities are prominent,and actively promoting curriculum reform is more conducive to promoting the implementation of ta...The theoretical and applied characteristics of educational psychology courses in colleges and universities are prominent,and actively promoting curriculum reform is more conducive to promoting the implementation of talent training goals,which is in line with the practical needs of social development for high-quality talents.However,curriculum reform is a systematic project,which involves the innovation of curriculum content systems,teaching methods,teaching evaluations,and so on.This paper mainly expounds on the curriculum reform path in the period of high-quality development of educational psychology in colleges and universities,hoping to play a reference role in improving the level of education management.展开更多
Objective: Case Teaching Method used in Primary Mathematics Pedagogy course can highlight the characteristics of pedagogy course. This method can transform learning process from the passive one in the conventional cl...Objective: Case Teaching Method used in Primary Mathematics Pedagogy course can highlight the characteristics of pedagogy course. This method can transform learning process from the passive one in the conventional classroom to an active one, so that classroom atmosphere will become active, inspiring students' interest in learning, and students would have the initiative to study. Meanwhile the Case Teaching Method also put forward higher requirements for teachers. This author does some analyses of the meaning of the case teaching method implementation methods and problems based on years of teaching experience. Detailed analyses can be shown as follow展开更多
In cornfields,factors such as the similarity between corn seedlings and weeds and the blurring of plant edge details pose challenges to corn and weed segmentation.In addition,remote areas such as farmland are usually ...In cornfields,factors such as the similarity between corn seedlings and weeds and the blurring of plant edge details pose challenges to corn and weed segmentation.In addition,remote areas such as farmland are usually constrained by limited computational resources and limited collected data.Therefore,it becomes necessary to lighten the model to better adapt to complex cornfield scene,and make full use of the limited data information.In this paper,we propose an improved image segmentation algorithm based on unet.Firstly,the inverted residual structure is introduced into the contraction path to reduce the number of parameters in the training process and improve the feature extraction ability;secondly,the pyramid pooling module is introduced to enhance the network’s ability of acquiring contextual information as well as the ability of dealing with the small target loss problem;and lastly,Finally,to further enhance the segmentation capability of the model,the squeeze and excitation mechanism is introduced in the expansion path.We used images of corn seedlings collected in the field and publicly available corn weed datasets to evaluate the improved model.The improved model has a total parameter of 3.79 M and miou can achieve 87.9%.The fps on a single 3050 ti video card is about 58.9.The experimental results show that the network proposed in this paper can quickly segment corn weeds in a cornfield scenario with good segmentation accuracy.展开更多
High harmonic generation in ZnO crystals under chirped single-color field and static electric field are investigated by solving the semiconductor Bloch equation(SBE). It is found that when the chirp pulse is introduce...High harmonic generation in ZnO crystals under chirped single-color field and static electric field are investigated by solving the semiconductor Bloch equation(SBE). It is found that when the chirp pulse is introduced, the interference structure becomes obvious while the harmonic cutoff is not extended. Furthermore, the harmonic efficiency is improved when the static electric field is included. These phenomena are demonstrated by the classical recollision model in real space affected by the waveform of laser field and inversion symmetry. Specifically, the electron motion in k-space shows that the change of waveform and the destruction of the symmetry of the laser field lead to the incomplete X-structure of the crystal-momentum-resolved(k-resolved) inter-band harmonic spectrum. Furthermore, a pre-acceleration process in the solid four-step model is confirmed.展开更多
The yield of castor is influenced by the type of inflorescence and the proportion of female flowers.However,there are few studies on the genetic mechanism involved in the development and differentiation of castor infl...The yield of castor is influenced by the type of inflorescence and the proportion of female flowers.However,there are few studies on the genetic mechanism involved in the development and differentiation of castor inflorescences.In this study,we performed transcriptomic analyses of three different phenotypes of inflorescences at the five-leaf stage.In comparison to the MI(complete pistil without willow leaves),290 and 89 differentially expressed genes(DEGs)were found in the SFI(complete pistil with willow leaves)and the BI(monoecious inflorescence),respectively.Among the DEGs,104 and 88 were upregulated in the SFI and BI,respectively,compared to the MI.In addition,186 DEGs and 1 DEG were downregulated in the SFI and BI compared to the MI.Moreover,we conducted GO and KEGG enrichment analyses of the DEGs.In comparison to the MI,the SFI and BI exhibited the enrichment of functional branches in DEGs,specifically in pollen wall assembly,pollen development,and cellular component assembly involved in morphogenesis.In our study,RADL5 showed low expression levels between SFI-vs.-MI types.In addition,we found that the expression of NAC in the SFI differed from that in MI and BI,and some genes related to hormonal signaling changed their expression levels during inflorescence differentiation.These results reveal the genetic mechanism of sex genotypes in castor,which will not only guide researchers in the breeding of castor but also provide a reference for genetic research on other flowering plants.展开更多
English practice teaching has outstanding superiority over the extension and supplementation of English classroom teaching, and practice teaching is an indispensably important part of college English teaching. To stud...English practice teaching has outstanding superiority over the extension and supplementation of English classroom teaching, and practice teaching is an indispensably important part of college English teaching. To students, cultivation of the ability of practice is vital, affecting students' employment and future. To universities, teaching quality has a direct impact on the development prospect of schools and decides the future of schools. Moreover, local normal universities also undertake a more important task to cultivate local high-quality talents teaching primary and junior high schools. These teaching talents undertake the great task of English teaching over primary and junior high school students, and thus the construction and implementation of practice teaching system of English major in normal universities are urgent.展开更多
Supported by the development of computer network technology, multi-media technology and database technology, file information digitalization as a new morphology of file emerges. This new kind of file morphology could ...Supported by the development of computer network technology, multi-media technology and database technology, file information digitalization as a new morphology of file emerges. This new kind of file morphology could exercise a long-term saving of file resources and efficiently utilize it. File management is the most important part of university information management. However, as various universities are different in their specific practice, file digital construction is different in construction manner and content.展开更多
At present, English language teaching for English majors in local normal universities in China has been restricted by many aspects of factors, and the current situation is not optimistic. The main reason for this situ...At present, English language teaching for English majors in local normal universities in China has been restricted by many aspects of factors, and the current situation is not optimistic. The main reason for this situation is that the teachers and students of English majors in some local normal universities have some deviation in understanding the English language. The teachers can not have the right attitude towards English language culture teaching,and they make one-sided emphasis on the skill learning of English language majors,but ignore the normal teaching of professional English language culture. To improve this situation and improve the overall level of English majors in normal univerities, it requires us teachers and students to work together, improving the overall level of this course from the two aspects of "teaching" and "learning" , in order to help students to truly grasp the English language culture and skillfully use English in daily life and work.展开更多
Castor(Ricinus communis L.)is one of ten oil crops in the world and has complex inflorescence styles.Generally,castor has three inflorescence types:single female inflorescence(SiFF),standard female inflorescence(StFF)...Castor(Ricinus communis L.)is one of ten oil crops in the world and has complex inflorescence styles.Generally,castor has three inflorescence types:single female inflorescence(SiFF),standard female inflorescence(StFF)and bisexual inflorescence(BF).StFF is realized as a restorer line and as a maintainer line,which was applied to castor hybrid breeding.However,the developmental mechanism of the three inflorescences is not clear.Therefore,we used proteomic techniques to analyze different inflorescence styles.A total of 72 diferentially abundant protein species(DAPs)were detected.These DAPs are primarily involved in carbon and energy metabolism and carbon fixation in the photosynthetic organism pathway.The results showed that DAPs are involved in photosynthesis to control the distribution of imported carbohydrates and exported photoassimilates and thus affect the inflorescence development of castor.In addition,these DAPs are also involved in cysteine and methionine metabolism.Quantitative real-time PCR(qRT-PCR)results demonstrated that the proteomics data collected in this study were reliable.Our findings indicate that the carbon cycle and amino acid metabolism influence the inflorescence development of castor.展开更多
Castor,scientifically known as Ricinus communis L.,is among the top ten oil crops globally.It is considered a renewable resource and is commonly referred to as‘green oil’.Castor seeds contain castor oil as their mai...Castor,scientifically known as Ricinus communis L.,is among the top ten oil crops globally.It is considered a renewable resource and is commonly referred to as‘green oil’.Castor seeds contain castor oil as their main component,which is predominantly composed of ricinoleic acid.This study utilized RNAi technology to silence the NPC6 gene in NO.2129 castor,resulting in the creation of mutant plants L1 and L2.The weight of 100 dry seed kernels from L1 and L2 exceeds that from NO.2129.The crude fat and ricinoleic acid levels of L1 and L2 were higher than those of NO.2129 at various developmental stages.In the proteomics analysis of 60-day-old castor seeds,a total of 21 differentially expressed proteins were identified,out of which 19 were successfully recognized.Eleven of the differentially expressed proteins identified were legumins,which play a crucial role in nutrient storage within the seed.Silencing the NPC6 gene results in the accumulation of ricinoleic acid in castor seeds.The findings of this study not only enhance our knowledge of NPC6’s role in regulating castor seed oil synthesis but also offer fresh perspectives for investigating oil synthesis and accumulation in other plant species.展开更多
With the rapid development of modern society,the protection and inheritance of traditional culture are becoming increasingly important.As a part of Chinese traditional culture,Tongyu New Year’s Paintings,with their u...With the rapid development of modern society,the protection and inheritance of traditional culture are becoming increasingly important.As a part of Chinese traditional culture,Tongyu New Year’s Paintings,with their unique artistic style and rich cultural connotation,have become an excellent resource for exploring the beauty of tradition and inspiring creativity.Based on this,LH Kindergarten in Baicheng City,Jilin Province,has utilized Tongyu New Year’s Paintings as a curriculum resource to develop a school-based curriculum,“The Beauty of Tongyu New Year’s Paintings:Artistic Exploration for Teachers and Children.”Through diversified learning styles,teachers and children will learn about the history of New Year’s paintings,incorporate certain features of the paintings into their art activities,and cultivate creativity and the spirit of teamwork,so as to pass on the precious essence of traditional culture to children and carry forward the spirit of teamwork in their hearts.This program will lead children to experience the treasures of traditional culture and the rich connotations behind Chinese New Year’s paintings,laying a solid foundation for their growth and lifelong learning.展开更多
Benzene is a major industrial air pollutant and can cause serious human health disorders. In this paper an investigation on benzene destruction, in an atmospheric-pressure fast-flow pulsed DC-discharge by means of las...Benzene is a major industrial air pollutant and can cause serious human health disorders. In this paper an investigation on benzene destruction, in an atmospheric-pressure fast-flow pulsed DC-discharge by means of laser ionization combined with time-of-flight (TOF) mass spectrometry, is reported. Most by-products including transient reactive species from the benzene discharge were characterized by molecular beam sampling combined with TOF mass spectrometry. It is showed that, with a gas mixture of 0.5% C6H6 in Ar, benzene can be effectively destroyed by discharge plasma. The intermediate species consisted of small fragments of CnHm (n=3-5, m = 1-11), cycle-chain species of CnHm (n =6-9, m = 7-10) and polycyclic species CnHm (n ≥9, m = 8-12). The alternation of mass peaks (intensity) with even/odd electrons was observed in the measured mass spectra. The results indicated that the alternation is mainly due to the different ionization potentials of the open shell and close shell species. Based on the examination of the features of the species' composition, the primary reaction pathways are proposed and discussed.展开更多
A new Pb(Ⅱ) coordination polymer, [Pb(1,4-chdc)(L)]_n·nH_2O(1), was synthesized under hydrothermal condition(1,4-H2 chdc = 1,4-cyclohexanedicarboxylic acid and L = 2-(3-fluorophenyl)-1H-imidazo[4,5-f]...A new Pb(Ⅱ) coordination polymer, [Pb(1,4-chdc)(L)]_n·nH_2O(1), was synthesized under hydrothermal condition(1,4-H2 chdc = 1,4-cyclohexanedicarboxylic acid and L = 2-(3-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline). Its crystal structure was determined by singlecrystal X-ray diffraction. Compound 1 crystallizes in triclinic, space group P1 with a = 9.1182(8), b = 11.3249(10), c = 12.7326(12) A, α = 77.897(2), β = 81.644(2), γ = 84.491(2)°, V = 1269.0(2) A^3, Z = 2, C_(27)H_(24)FN_4O_5Pb, M_r = 710.69, D_c = 1.860 g/cm^3, F(000) = 690, μ(MoKa) = 6.701 mm^(-1), R = 0.0349 and wR = 0.0746. In 1, each 1,4-chdc anion bridges two neighboring Pb(Ⅱ) atoms in a bidentate chelating coordination mode to give a chain structure. The L ligands are attached on one side of the chain through chelating the Pb(Ⅱ) atoms, and are stacked with those of an adjacent chain through π-π interactions, yielding a layer structure. The O-H···O and N-H···O hydrogen bonding interactions further stabilize the supramolecular layer structure of 1. Moreover, solid state luminescent property of 1 was also studied.展开更多
<div style="text-align:justify;"> In this study, a two-dimensional model describing thermal stress on a charge-coupled device (CCD) induced by ms laser pulses was examined. Considering the nonlinearity...<div style="text-align:justify;"> In this study, a two-dimensional model describing thermal stress on a charge-coupled device (CCD) induced by ms laser pulses was examined. Considering the nonlinearity of the CCD’s material parameters and the melting phase transition process of aluminum electrode materials was considered by using equivalent specific heat capacity method, the physical process where a laser pulse irradiating a CCD pixel array was simulated using COMSOL Multiphysics software. The temperature field and thermal stress field were calculated and analyzed. In order to clarify the mechanism producing damage on the CCD detector, Raman spectra from silicon were measured with a micro-Raman spectrometer to determine stress change in the CCD chip. The procedure presented herein illustrates a method for evaluating strain in a CCD after laser irradiation. </div>展开更多
In today' s society, there are increasingly more new requirements on English education in local colleges and universities, and also there are some problems to be exposed. A great difference exists between the languag...In today' s society, there are increasingly more new requirements on English education in local colleges and universities, and also there are some problems to be exposed. A great difference exists between the language application ability of learners and the actual conditions of teaching; great investments are put by both schools and teachers into teaching, but the teaching quality is not improved and also the teaching effect is not very ideal; the pass rate and excellent rate of CET4 and CET6 are pursued by many Chinese colleges and universities, and the strategy with an ocean of paper and examination-oriented intensive training methods are even applied, so that the internal rules of language teaching are seriously damaged.展开更多
Changbai Mountain,central in the distribution of Pinus koraiensis,supports a virgin Korean pine forest with vertical gradient distribution.Soil extracellular enzyme activity(EEA) and enzyme stoichiometry(ES) are relia...Changbai Mountain,central in the distribution of Pinus koraiensis,supports a virgin Korean pine forest with vertical gradient distribution.Soil extracellular enzyme activity(EEA) and enzyme stoichiometry(ES) are reliable indicators of the energy and nutrients utilized by microbial communities and of soil nutrient changes.We measured four representative soil EEAs(sucrase,cellulase,urease,acid phosphatase) at two soil layers(A:0-5 cm and B:5-10 cm)beneath Korean pine forest at five elevations on Changbai Mountain during growing season.The vertical and seasonal variations of EEAs were analyzed by soil enzyme stoichiometry to quantify the role of soil microorganism in the nutrient cycling process.The activities of four soil extracellular enzymes and the ratios of enzyme activity to soil microbial biomass carbon(EA/SMBC) did not vary with elevation.The first partition point of multiple regression trees was in September,and the second branch was split by elevation.Seasonal change had more influence on soil enzyme activity(A layer:75.6%;B layer:71.3%) than did change in elevation(A layer:7.8%;B layer:7.5%).Over one entire growing season,both vector length and vector angle were unchanged by elevation,but varied significantly by month.Among the soil physicochemical factors,available phosphorus and pH were the main factors affecting the four soil EE As.The ratio of basal area of the coniferous tree to broad-leaved tree species(S_(con)/S_(br)),soil microbial biomass carbon(MBC) and nitrogen(MBN) influenced the four soil EE As.The results of vector analysis revealed that C and N sources were generally sufficient,but P was limiting(vector angle> 45°).The vector angle for September was significantly higher than for other months.This result verified that phosphorus was the limiting factor affecting soil microorganism function in nutrient metabolism and cycling.Soil enzyme stoichiometry proved to be an efficient index for quantifying soil microorganismmediated nutrient cycling in the Korean pine ecosystem.展开更多
The unconventional photon blockade(UPB)for low-frequency mode is investigated in a three-mode system with double second-order nonlinearity.By analyzing the Hamiltonian of the system,the optimal analytic condition of U...The unconventional photon blockade(UPB)for low-frequency mode is investigated in a three-mode system with double second-order nonlinearity.By analyzing the Hamiltonian of the system,the optimal analytic condition of UPB in low-frequency mode is obtained.The numerical results are calculated by solving the master equation in a truncated Fock space,which agrees well with the analytic conditions.Through the numerical analysis of the system,it is found that the weak driving strength is favorable for the system to realize the UPB effect,and the system is insensitive to the changes of attenuation rate and environmental temperature.The comparison with the two-mode system and another similar threemode system shows that,under similar system parameters,the UPB effect of this double two-order nonlinear system is more obvious.展开更多
In order to solve the problems of poor informationflow,low energy utilization rate and energy consumption data reuse in the heavy equipment industrial park,the Internet of Things(IoT)technology is applied to construct...In order to solve the problems of poor informationflow,low energy utilization rate and energy consumption data reuse in the heavy equipment industrial park,the Internet of Things(IoT)technology is applied to construct the intelligent energy management and control system(IEMCS).The application architecture and function module planning are analyzed and designed.Furthermore,the IEMCS scheme is not unique due to the fuzziness of customer demand and the understanding deviation of designer to customer demand in the design stage.Scheme assessment is of great significance for the normal subsequent implementation of the system.A fuzzy assessment method for IEMCS scheme alternatives is proposed to achieve scheme selection.Fuzzy group decision using triangular fuzzy number to express the vague assessment of experts is adopted to determine the index value.TOPSIS is modified by replacing Euclidean distance with contact vector distance in IEMCS scheme alternative assessment.An experiment with eight IEMCS scheme alternatives in a heavy equipment industrial park is given for the validation.The experiment result shows that eight IEMCS scheme alternatives can be assessed.Through the comparisons with other methods,the reliability of the results obtained by the proposed method is discussed.展开更多
Tongyu year painting has an important influence on national folk painting field, and the works have stronger culture and art research value, In 60s of 20th Century, Tongyu year painting has entered its prosperous peri...Tongyu year painting has an important influence on national folk painting field, and the works have stronger culture and art research value, In 60s of 20th Century, Tongyu year painting has entered its prosperous period, with many authors, lots of creation amount, large circulation and high winning level has become the major influence reason. Thus, in 1991, Tongyu County was awarded as "Chinese modem folk painting village" by the Ministry of Culture. Tongyu year painting is to reflect the meaning and connotation of year culture background, which is an important organization part of Jilin western Horqin grassland year culture, which shows the thick black soil land, Kanto feeling hot, the northeast wind rough, forming its own unique artistic style.展开更多
In this paper, we conduct theoretical research on design and implementation on wind and light complementary LED lighting controller based on the novel base board packaging technology. LED, as a kind of device can conv...In this paper, we conduct theoretical research on design and implementation on wind and light complementary LED lighting controller based on the novel base board packaging technology. LED, as a kind of device can convert electric power into visible light directly the homomorphism of semiconductor devices, with high efficiency and small energy consumption, good light quality, use safety, long service life, green environmental protection, flexible control as this is common lamps and lanterns is incomparable advantage. Therefore, it is considered to be 21 century of a new generation of lighting source. Based on the superiority of LED, it is widely applied in many fields of lighting. To enhance the traditional solar based pure LED system, we enhance it with the combination of the wind power and the optimized controller that holds specific meaning.展开更多
文摘The theoretical and applied characteristics of educational psychology courses in colleges and universities are prominent,and actively promoting curriculum reform is more conducive to promoting the implementation of talent training goals,which is in line with the practical needs of social development for high-quality talents.However,curriculum reform is a systematic project,which involves the innovation of curriculum content systems,teaching methods,teaching evaluations,and so on.This paper mainly expounds on the curriculum reform path in the period of high-quality development of educational psychology in colleges and universities,hoping to play a reference role in improving the level of education management.
文摘Objective: Case Teaching Method used in Primary Mathematics Pedagogy course can highlight the characteristics of pedagogy course. This method can transform learning process from the passive one in the conventional classroom to an active one, so that classroom atmosphere will become active, inspiring students' interest in learning, and students would have the initiative to study. Meanwhile the Case Teaching Method also put forward higher requirements for teachers. This author does some analyses of the meaning of the case teaching method implementation methods and problems based on years of teaching experience. Detailed analyses can be shown as follow
文摘In cornfields,factors such as the similarity between corn seedlings and weeds and the blurring of plant edge details pose challenges to corn and weed segmentation.In addition,remote areas such as farmland are usually constrained by limited computational resources and limited collected data.Therefore,it becomes necessary to lighten the model to better adapt to complex cornfield scene,and make full use of the limited data information.In this paper,we propose an improved image segmentation algorithm based on unet.Firstly,the inverted residual structure is introduced into the contraction path to reduce the number of parameters in the training process and improve the feature extraction ability;secondly,the pyramid pooling module is introduced to enhance the network’s ability of acquiring contextual information as well as the ability of dealing with the small target loss problem;and lastly,Finally,to further enhance the segmentation capability of the model,the squeeze and excitation mechanism is introduced in the expansion path.We used images of corn seedlings collected in the field and publicly available corn weed datasets to evaluate the improved model.The improved model has a total parameter of 3.79 M and miou can achieve 87.9%.The fps on a single 3050 ti video card is about 58.9.The experimental results show that the network proposed in this paper can quickly segment corn weeds in a cornfield scenario with good segmentation accuracy.
基金supported by the Natural Science Foundation of Jilin Province (Grant No.20220101010JC)the National Natural Science Foundation of China (Grant No.12074146)。
文摘High harmonic generation in ZnO crystals under chirped single-color field and static electric field are investigated by solving the semiconductor Bloch equation(SBE). It is found that when the chirp pulse is introduced, the interference structure becomes obvious while the harmonic cutoff is not extended. Furthermore, the harmonic efficiency is improved when the static electric field is included. These phenomena are demonstrated by the classical recollision model in real space affected by the waveform of laser field and inversion symmetry. Specifically, the electron motion in k-space shows that the change of waveform and the destruction of the symmetry of the laser field lead to the incomplete X-structure of the crystal-momentum-resolved(k-resolved) inter-band harmonic spectrum. Furthermore, a pre-acceleration process in the solid four-step model is confirmed.
基金the following agencies:the Natural Science Foundation of Jilin Province(YDZJ202201ZYTS453)the Scientific Research Project of the Jilin Provincial Department of Education(JJKH20220010KJ)+6 种基金the Program for Innovative Research Team of Baicheng Normal University,the National Natural Science Foundation of China(31860071)the Inner Mongolia Autonomous Region Natural Science Foundation Project(2021MS03008)the Inner Mongolia Autonomous Region Grassland Talent Innovation Team(2022)the 2022 Basic Scientific Research Business Cost Project of Universities Directly under the Autonomous Region(237)the Open Fund Project of Inner Mongolia Castor Industry Collaborative Innovation Center(MDK2021011,MDK2022014,MDK2022008,MDK2021008,MDK2022009,MDK2023003)Fundamental Research Funds for Universities Directly under the Autonomous Region in 2023 of Inner Mongolia University for Nationalities(225,227,243,244)New Agricultural Science Research and Reform Practice Project of the Ministry of Education(2020114)。
文摘The yield of castor is influenced by the type of inflorescence and the proportion of female flowers.However,there are few studies on the genetic mechanism involved in the development and differentiation of castor inflorescences.In this study,we performed transcriptomic analyses of three different phenotypes of inflorescences at the five-leaf stage.In comparison to the MI(complete pistil without willow leaves),290 and 89 differentially expressed genes(DEGs)were found in the SFI(complete pistil with willow leaves)and the BI(monoecious inflorescence),respectively.Among the DEGs,104 and 88 were upregulated in the SFI and BI,respectively,compared to the MI.In addition,186 DEGs and 1 DEG were downregulated in the SFI and BI compared to the MI.Moreover,we conducted GO and KEGG enrichment analyses of the DEGs.In comparison to the MI,the SFI and BI exhibited the enrichment of functional branches in DEGs,specifically in pollen wall assembly,pollen development,and cellular component assembly involved in morphogenesis.In our study,RADL5 showed low expression levels between SFI-vs.-MI types.In addition,we found that the expression of NAC in the SFI differed from that in MI and BI,and some genes related to hormonal signaling changed their expression levels during inflorescence differentiation.These results reveal the genetic mechanism of sex genotypes in castor,which will not only guide researchers in the breeding of castor but also provide a reference for genetic research on other flowering plants.
文摘English practice teaching has outstanding superiority over the extension and supplementation of English classroom teaching, and practice teaching is an indispensably important part of college English teaching. To students, cultivation of the ability of practice is vital, affecting students' employment and future. To universities, teaching quality has a direct impact on the development prospect of schools and decides the future of schools. Moreover, local normal universities also undertake a more important task to cultivate local high-quality talents teaching primary and junior high schools. These teaching talents undertake the great task of English teaching over primary and junior high school students, and thus the construction and implementation of practice teaching system of English major in normal universities are urgent.
文摘Supported by the development of computer network technology, multi-media technology and database technology, file information digitalization as a new morphology of file emerges. This new kind of file morphology could exercise a long-term saving of file resources and efficiently utilize it. File management is the most important part of university information management. However, as various universities are different in their specific practice, file digital construction is different in construction manner and content.
文摘At present, English language teaching for English majors in local normal universities in China has been restricted by many aspects of factors, and the current situation is not optimistic. The main reason for this situation is that the teachers and students of English majors in some local normal universities have some deviation in understanding the English language. The teachers can not have the right attitude towards English language culture teaching,and they make one-sided emphasis on the skill learning of English language majors,but ignore the normal teaching of professional English language culture. To improve this situation and improve the overall level of English majors in normal univerities, it requires us teachers and students to work together, improving the overall level of this course from the two aspects of "teaching" and "learning" , in order to help students to truly grasp the English language culture and skillfully use English in daily life and work.
基金This study was supported by the National Natural Science Foundation of China(31860071)Research and Reform Practice Project in New Agricultural Sciences of the Ministry of Education in 2020(2020114)+7 种基金Natural Science Foundation of Inner Mongolia Autonomous Region(2021MS03008)Inner Mongolia Autonomous Region Grassland Talents Innovation Team—Castor Molecular Breeding Research Innovative Talent Team Rolling Support Project(2022)Higher Education Teaching Reform Research Project of National Ethnic Affairs Commission in 2021(21082)Fundamental Research Funds in Higher Education Institutions of Inner Mongolia in 2022(237)Autonomous Region Basic Scientific Reasearch Business Fee Projest of Inner Mongolia MinZu University in 2023(225,227,244)Inner Mongolia Autonomous Region Castor Industry Collaborative Innovation Center Construction Project(MDK2021011,MDK2022014)Open Fund Project in State Key Laboratory of Castor Breeding of China’s National Ethnic Affairs Commission(MDK2021008)Science and Technology Research Project of Jilin Provincial Department of Education(JJKH20220010KJ).
文摘Castor(Ricinus communis L.)is one of ten oil crops in the world and has complex inflorescence styles.Generally,castor has three inflorescence types:single female inflorescence(SiFF),standard female inflorescence(StFF)and bisexual inflorescence(BF).StFF is realized as a restorer line and as a maintainer line,which was applied to castor hybrid breeding.However,the developmental mechanism of the three inflorescences is not clear.Therefore,we used proteomic techniques to analyze different inflorescence styles.A total of 72 diferentially abundant protein species(DAPs)were detected.These DAPs are primarily involved in carbon and energy metabolism and carbon fixation in the photosynthetic organism pathway.The results showed that DAPs are involved in photosynthesis to control the distribution of imported carbohydrates and exported photoassimilates and thus affect the inflorescence development of castor.In addition,these DAPs are also involved in cysteine and methionine metabolism.Quantitative real-time PCR(qRT-PCR)results demonstrated that the proteomics data collected in this study were reliable.Our findings indicate that the carbon cycle and amino acid metabolism influence the inflorescence development of castor.
基金supported by the following agencies:Natural Science Foundation of Jilin Province (YDZJ202201ZYTS453)Scientific Research Project of the Jilin Provincial Department of Education (JJKH20220010KJ)+6 种基金supported by Program for Innovative Research Team of Baicheng Normal University,National Natural Science Foundation of China (31860071)Inner Mongolia Autonomous Region Natural Science Foundation Project (2021MS03008)Inner Mongolia Autonomous Region Grassland Talent Innovation Team (2022)2022 Basic Scientific Research Business Cost Project of Universities Directly under the Autonomous Region (237)Open Fund Project of Inner Mongolia Castor Industry Collaborative Innovation Center (MDK2021011,MDK2022014,MDK2022008,MDK2021008,MDK2022009)Fundamental Research Funds for Universities Directly under the Autonomous Region in 2023 of Inner Mongolia University for Nationalities (225,227,243,244)New Agricultural Science Research and Reform Practice Project of the Ministry of Education (2020114)。
文摘Castor,scientifically known as Ricinus communis L.,is among the top ten oil crops globally.It is considered a renewable resource and is commonly referred to as‘green oil’.Castor seeds contain castor oil as their main component,which is predominantly composed of ricinoleic acid.This study utilized RNAi technology to silence the NPC6 gene in NO.2129 castor,resulting in the creation of mutant plants L1 and L2.The weight of 100 dry seed kernels from L1 and L2 exceeds that from NO.2129.The crude fat and ricinoleic acid levels of L1 and L2 were higher than those of NO.2129 at various developmental stages.In the proteomics analysis of 60-day-old castor seeds,a total of 21 differentially expressed proteins were identified,out of which 19 were successfully recognized.Eleven of the differentially expressed proteins identified were legumins,which play a crucial role in nutrient storage within the seed.Silencing the NPC6 gene results in the accumulation of ricinoleic acid in castor seeds.The findings of this study not only enhance our knowledge of NPC6’s role in regulating castor seed oil synthesis but also offer fresh perspectives for investigating oil synthesis and accumulation in other plant species.
基金This paper is a stage result of the research of“Tongyu New Year’s Paintings Inheritance and Development Based on the Cultivation of Art Literacy of Early Childhood Teachers”(Project number:GH23649),which is a 2023 project of the 14th Five-Year Plan of Educational Science in Jilin Province.
文摘With the rapid development of modern society,the protection and inheritance of traditional culture are becoming increasingly important.As a part of Chinese traditional culture,Tongyu New Year’s Paintings,with their unique artistic style and rich cultural connotation,have become an excellent resource for exploring the beauty of tradition and inspiring creativity.Based on this,LH Kindergarten in Baicheng City,Jilin Province,has utilized Tongyu New Year’s Paintings as a curriculum resource to develop a school-based curriculum,“The Beauty of Tongyu New Year’s Paintings:Artistic Exploration for Teachers and Children.”Through diversified learning styles,teachers and children will learn about the history of New Year’s paintings,incorporate certain features of the paintings into their art activities,and cultivate creativity and the spirit of teamwork,so as to pass on the precious essence of traditional culture to children and carry forward the spirit of teamwork in their hearts.This program will lead children to experience the treasures of traditional culture and the rich connotations behind Chinese New Year’s paintings,laying a solid foundation for their growth and lifelong learning.
基金supported by National Natural Science Foundation of China (No. 10875023)Scientific and Technical Key Project of Educational Ministry of China (No. 108034)
文摘Benzene is a major industrial air pollutant and can cause serious human health disorders. In this paper an investigation on benzene destruction, in an atmospheric-pressure fast-flow pulsed DC-discharge by means of laser ionization combined with time-of-flight (TOF) mass spectrometry, is reported. Most by-products including transient reactive species from the benzene discharge were characterized by molecular beam sampling combined with TOF mass spectrometry. It is showed that, with a gas mixture of 0.5% C6H6 in Ar, benzene can be effectively destroyed by discharge plasma. The intermediate species consisted of small fragments of CnHm (n=3-5, m = 1-11), cycle-chain species of CnHm (n =6-9, m = 7-10) and polycyclic species CnHm (n ≥9, m = 8-12). The alternation of mass peaks (intensity) with even/odd electrons was observed in the measured mass spectra. The results indicated that the alternation is mainly due to the different ionization potentials of the open shell and close shell species. Based on the examination of the features of the species' composition, the primary reaction pathways are proposed and discussed.
文摘A new Pb(Ⅱ) coordination polymer, [Pb(1,4-chdc)(L)]_n·nH_2O(1), was synthesized under hydrothermal condition(1,4-H2 chdc = 1,4-cyclohexanedicarboxylic acid and L = 2-(3-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline). Its crystal structure was determined by singlecrystal X-ray diffraction. Compound 1 crystallizes in triclinic, space group P1 with a = 9.1182(8), b = 11.3249(10), c = 12.7326(12) A, α = 77.897(2), β = 81.644(2), γ = 84.491(2)°, V = 1269.0(2) A^3, Z = 2, C_(27)H_(24)FN_4O_5Pb, M_r = 710.69, D_c = 1.860 g/cm^3, F(000) = 690, μ(MoKa) = 6.701 mm^(-1), R = 0.0349 and wR = 0.0746. In 1, each 1,4-chdc anion bridges two neighboring Pb(Ⅱ) atoms in a bidentate chelating coordination mode to give a chain structure. The L ligands are attached on one side of the chain through chelating the Pb(Ⅱ) atoms, and are stacked with those of an adjacent chain through π-π interactions, yielding a layer structure. The O-H···O and N-H···O hydrogen bonding interactions further stabilize the supramolecular layer structure of 1. Moreover, solid state luminescent property of 1 was also studied.
文摘<div style="text-align:justify;"> In this study, a two-dimensional model describing thermal stress on a charge-coupled device (CCD) induced by ms laser pulses was examined. Considering the nonlinearity of the CCD’s material parameters and the melting phase transition process of aluminum electrode materials was considered by using equivalent specific heat capacity method, the physical process where a laser pulse irradiating a CCD pixel array was simulated using COMSOL Multiphysics software. The temperature field and thermal stress field were calculated and analyzed. In order to clarify the mechanism producing damage on the CCD detector, Raman spectra from silicon were measured with a micro-Raman spectrometer to determine stress change in the CCD chip. The procedure presented herein illustrates a method for evaluating strain in a CCD after laser irradiation. </div>
文摘In today' s society, there are increasingly more new requirements on English education in local colleges and universities, and also there are some problems to be exposed. A great difference exists between the language application ability of learners and the actual conditions of teaching; great investments are put by both schools and teachers into teaching, but the teaching quality is not improved and also the teaching effect is not very ideal; the pass rate and excellent rate of CET4 and CET6 are pursued by many Chinese colleges and universities, and the strategy with an ocean of paper and examination-oriented intensive training methods are even applied, so that the internal rules of language teaching are seriously damaged.
基金supported by the National Natural Science Foundation of China (No.31670496)。
文摘Changbai Mountain,central in the distribution of Pinus koraiensis,supports a virgin Korean pine forest with vertical gradient distribution.Soil extracellular enzyme activity(EEA) and enzyme stoichiometry(ES) are reliable indicators of the energy and nutrients utilized by microbial communities and of soil nutrient changes.We measured four representative soil EEAs(sucrase,cellulase,urease,acid phosphatase) at two soil layers(A:0-5 cm and B:5-10 cm)beneath Korean pine forest at five elevations on Changbai Mountain during growing season.The vertical and seasonal variations of EEAs were analyzed by soil enzyme stoichiometry to quantify the role of soil microorganism in the nutrient cycling process.The activities of four soil extracellular enzymes and the ratios of enzyme activity to soil microbial biomass carbon(EA/SMBC) did not vary with elevation.The first partition point of multiple regression trees was in September,and the second branch was split by elevation.Seasonal change had more influence on soil enzyme activity(A layer:75.6%;B layer:71.3%) than did change in elevation(A layer:7.8%;B layer:7.5%).Over one entire growing season,both vector length and vector angle were unchanged by elevation,but varied significantly by month.Among the soil physicochemical factors,available phosphorus and pH were the main factors affecting the four soil EE As.The ratio of basal area of the coniferous tree to broad-leaved tree species(S_(con)/S_(br)),soil microbial biomass carbon(MBC) and nitrogen(MBN) influenced the four soil EE As.The results of vector analysis revealed that C and N sources were generally sufficient,but P was limiting(vector angle> 45°).The vector angle for September was significantly higher than for other months.This result verified that phosphorus was the limiting factor affecting soil microorganism function in nutrient metabolism and cycling.Soil enzyme stoichiometry proved to be an efficient index for quantifying soil microorganismmediated nutrient cycling in the Korean pine ecosystem.
基金Project supported by the National Natural Science Foundation of China(Grant No.11647054)the Natural Science Foundation of Jilin Province,China(Grant No.JJKH20181088KJ)。
文摘The unconventional photon blockade(UPB)for low-frequency mode is investigated in a three-mode system with double second-order nonlinearity.By analyzing the Hamiltonian of the system,the optimal analytic condition of UPB in low-frequency mode is obtained.The numerical results are calculated by solving the master equation in a truncated Fock space,which agrees well with the analytic conditions.Through the numerical analysis of the system,it is found that the weak driving strength is favorable for the system to realize the UPB effect,and the system is insensitive to the changes of attenuation rate and environmental temperature.The comparison with the two-mode system and another similar threemode system shows that,under similar system parameters,the UPB effect of this double two-order nonlinear system is more obvious.
文摘In order to solve the problems of poor informationflow,low energy utilization rate and energy consumption data reuse in the heavy equipment industrial park,the Internet of Things(IoT)technology is applied to construct the intelligent energy management and control system(IEMCS).The application architecture and function module planning are analyzed and designed.Furthermore,the IEMCS scheme is not unique due to the fuzziness of customer demand and the understanding deviation of designer to customer demand in the design stage.Scheme assessment is of great significance for the normal subsequent implementation of the system.A fuzzy assessment method for IEMCS scheme alternatives is proposed to achieve scheme selection.Fuzzy group decision using triangular fuzzy number to express the vague assessment of experts is adopted to determine the index value.TOPSIS is modified by replacing Euclidean distance with contact vector distance in IEMCS scheme alternative assessment.An experiment with eight IEMCS scheme alternatives in a heavy equipment industrial park is given for the validation.The experiment result shows that eight IEMCS scheme alternatives can be assessed.Through the comparisons with other methods,the reliability of the results obtained by the proposed method is discussed.
文摘Tongyu year painting has an important influence on national folk painting field, and the works have stronger culture and art research value, In 60s of 20th Century, Tongyu year painting has entered its prosperous period, with many authors, lots of creation amount, large circulation and high winning level has become the major influence reason. Thus, in 1991, Tongyu County was awarded as "Chinese modem folk painting village" by the Ministry of Culture. Tongyu year painting is to reflect the meaning and connotation of year culture background, which is an important organization part of Jilin western Horqin grassland year culture, which shows the thick black soil land, Kanto feeling hot, the northeast wind rough, forming its own unique artistic style.
文摘In this paper, we conduct theoretical research on design and implementation on wind and light complementary LED lighting controller based on the novel base board packaging technology. LED, as a kind of device can convert electric power into visible light directly the homomorphism of semiconductor devices, with high efficiency and small energy consumption, good light quality, use safety, long service life, green environmental protection, flexible control as this is common lamps and lanterns is incomparable advantage. Therefore, it is considered to be 21 century of a new generation of lighting source. Based on the superiority of LED, it is widely applied in many fields of lighting. To enhance the traditional solar based pure LED system, we enhance it with the combination of the wind power and the optimized controller that holds specific meaning.