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Comprehensible Technique in Solving Consecutive Number Problems in Algebra
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作者 Gener Santiago Subia 《Journal of Applied Mathematics and Physics》 2018年第3期447-457,共11页
This research paper evaluated and investigated the effectiveness of the comprehensible technique (CT) introduced by the researcher as an alternative solution to Algebra’s linear equations in solving consecutive numbe... This research paper evaluated and investigated the effectiveness of the comprehensible technique (CT) introduced by the researcher as an alternative solution to Algebra’s linear equations in solving consecutive number problems. The CT is a proposed easy and efficient way of solving number problems which aimed to help the learners reduce their difficulties in using variables since the technique only uses basic arithmetic and mental Mathematics. Evaluation research was utilized in this study where 20 people, from various ages and professions, were chosen purposively as respondents of the study. The study found out that CT was very effective for the respondents especially in unlocking difficulties in solving consecutive number problems. Moreover, according to them, the CT is easy to use, it is engaging and enjoyable, direct and simple and can be utilized as shortcut way of solving consecutive number problems when competing in Math quiz bees or taking board examinations where time is of the essence. 展开更多
关键词 ALGEBRA comprehensible TECHNIQUE Consecutive NUMBER PROBLEMS Linear EQUATION
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Is Comprehensible Input Necessary and Sufficient for SLA?
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作者 李斌 《疯狂英语(教师版)》 2013年第1期80-85,共6页
This paper mainly focus on the literature concerning comprehensible input so as to find the arguments from the researchers,as well as its implication for teaching.
关键词 comprehensible input SLA
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LISTENING COMPREHENSION: MORE THAN JUST COMPREHENSIBLE INPUT 被引量:2
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作者 Robert Courchene Second Language Institute, University of Ottawa 《Chinese Journal of Applied Linguistics》 1994年第0期12-25,共14页
In the ten years since the publication of Krashen’s theory on second language acquisition (SLA), the role of comprehensible input (CI) in the learning/acquiring of a language has received considerable attention (Kras... In the ten years since the publication of Krashen’s theory on second language acquisition (SLA), the role of comprehensible input (CI) in the learning/acquiring of a language has received considerable attention (Krashen, 1982, 1985; Ellis, 1991, 1992; Long, 1983, 1985). As a result of these studies researchers now agree on the following points. Exposure to a language does not lead to acquisition; the personal accounts of so many language learners who have spent many years in a country or who have listened to endless hours of radio and television without being able to understand or speak the language attest to this fact. 展开更多
关键词 LISTENING COMPREHENSION MORE THAN JUST comprehensible INPUT
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Optimal combination of substrate supply amount coupled with nutrient solution management program for cucumber planting
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作者 Zhen Kang Zhaoxi Jiang +5 位作者 Zhaolong Liu Peng Wang Caihong Zhang Maozhou Yuan Mengqi Bai Xiaohui Hu 《Horticultural Plant Journal》 2026年第1期136-148,共13页
Substrate and nutrient supply are essential for vegetable cultivation in greenhouse.The strategies for plant nutrient supply vary depending on the cultivation methods or substrate dosages employed.With the development... Substrate and nutrient supply are essential for vegetable cultivation in greenhouse.The strategies for plant nutrient supply vary depending on the cultivation methods or substrate dosages employed.With the development of mechanization,wide-row spacing substrate cultivation became an optimize mode of the greenhouse cucumber cultivation,aligning with the trend of intelligent agriculture.To determine the optimal nutrient solution supply amount(NS)and supply frequency(SF)for promoting the integrated growth of cucumber under wide-row spacing substrate cultivation,we explored the effects of substrate supply amount(SS),NS,and SF on cucumber yield,quality,and element utilization efficiency.A five-level quadratic orthogonal rotation combination design with three experimental factors(NS,SF,and SS)was implemented for 23 coupling treatments over three growing seasons,including spring(2022S and 2023S)and autumn(2022A).The technique for order preference by similarity to ideal solution(TOPSIS)combining weights based on game theory was applied to construct cucumber comprehensive growth evaluation model.Single and two experimental factors analyses revealed significant effects of single factors and the coupling of NS-SS,NS-SF and SS-SF on the integrated growth of cucumber for all three growing seasons.For the NS-SF-SS combination,the optimal parameters for comprehensive cucumber growth were determined as follows:levels of^(-1).68 for NS,-0.7 for SF,and^(-1).682 for SS in 2022A;-0.43 for NS,-0.06 for SF,and 0.34 for SS in 2022S;0.3 for NS,-0.02 for SF,and 0.04 for SS in 2023S.Furthermore,for SS ranges of 2.00-3.01,3.01-4.50,4.50-5.99,5.99-7.00(L·plant^(-1)),the corresponding NS and SF intervals maximizing cucumber integrated growth in spring were:0.28-0.30(L·plant^(-1))and 6(times·d^(-1)),0.26-0.30(L·plant^(-1))and 6(times·d^(-1)),0.25-0.30(L·plant^(-1))and 6(times·d^(-1)),0.23-0.30(L·plant^(-1))and 6(times·d^(-1)),respectively.With the same SS,the corresponding NS and SF intervals that maximized cucumber integrated growth in autumn were:0.10(L·plant^(-1))and 8(times·d^(-1)),0.18(L·plant^(-1))and 7(times·d^(-1)),0.30(L·plant^(-1))and 6(times·d^(-1)),0.49(L·plant^(-1))and 5(times·d^(-1)),respectively.The results provide a theoretical basis for solution management,and further in-depth research on cucumber cultivation. 展开更多
关键词 Cucumis sativus L. Comprehensive growth Irrigation frequency Nutrient solution Substrate supply amount Wide row spacing
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Correction: Optimizing Exciton and Charge-Carrier Behavior in Thick-Film Organic Photovoltaics: A Comprehensive Review
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作者 Lu Wei Yaxin Yang +2 位作者 Lingling Zhan Shouchun Yin Hongzheng Chen 《Nano-Micro Letters》 2026年第1期608-608,共1页
Correction to:Nano-Micro Letters(2026)18:10.https://doi.org/10.1007/s40820-025-01852-8 Following publication of the original article[1],the authors reported that the last author’s name was inadvertently misspelled.Th... Correction to:Nano-Micro Letters(2026)18:10.https://doi.org/10.1007/s40820-025-01852-8 Following publication of the original article[1],the authors reported that the last author’s name was inadvertently misspelled.The published version showed“Hongzhen Chen”,whereas the correct spelling should be“Hongzheng Chen”.The correct author name has been provided in this Correction,and the original article[1]has been corrected. 展开更多
关键词 charge carrier behavior exciton behavior comprehensive review thick film organic photovoltaics nano micro letters
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Multi-objective spatial optimization by considering land use suitability in the Yangtze River Delta region
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作者 CHENG Qianwen LI Manchun +4 位作者 LI Feixue LIN Yukun DING Chenyin XIAO Lishan LI Weiyue 《Journal of Geographical Sciences》 2026年第1期45-78,共34页
Rapid urbanization in China has led to spatial antagonism between urban development and farmland protection and ecological security maintenance.Multi-objective spatial collaborative optimization is a powerful method f... Rapid urbanization in China has led to spatial antagonism between urban development and farmland protection and ecological security maintenance.Multi-objective spatial collaborative optimization is a powerful method for achieving sustainable regional development.Previous studies on multi-objective spatial optimization do not involve spatial corrections to simulation results based on the natural endowment of space resources.This study proposes an Ecological Security-Food Security-Urban Sustainable Development(ES-FS-USD)spatial optimization framework.This framework combines the non-dominated sorting genetic algorithm II(NSGA-II)and patch-generating land use simulation(PLUS)model with an ecological protection importance evaluation,comprehensive agricultural productivity evaluation,and urban sustainable development potential assessment and optimizes the territorial space in the Yangtze River Delta(YRD)region in 2035.The proposed sustainable development(SD)scenario can effectively reduce the destruction of landscape patterns of various land-use types while considering both ecological and economic benefits.The simulation results were further revised by evaluating the land-use suitability of the YRD region.According to the revised spatial pattern for the YRD in 2035,the farmland area accounts for 43.59%of the total YRD,which is 5.35%less than that in 2010.Forest,grassland,and water area account for 40.46%of the total YRD—an increase of 1.42%compared with the case in 2010.Construction land accounts for 14.72%of the total YRD—an increase of 2.77%compared with the case in 2010.The ES-FS-USD spatial optimization framework ensures that spatial optimization outcomes are aligned with the natural endowments of land resources,thereby promoting the sustainable use of land resources,improving the ability of spatial management,and providing valuable insights for decision makers. 展开更多
关键词 multi-objective spatial optimization multi-scenario simulation ecological protection importance comprehensive agricultural productivity urban sustainable development land-use suitability
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Combing the Entropy Weight Method with Fuzzy Mathematics for Assessing the Quality and Post-Ripening Mechanism of High-Temperature Daqu during Storage 被引量:1
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作者 YANG Junlin YANG Shaojuan +8 位作者 WU Cheng YIN Yanshun YOU Xiaolong ZHAO Wenyu ZHU Anran WANG Jia HU Feng HU Jianfeng WANG Diqiang 《食品科学》 北大核心 2025年第9期48-62,共15页
This study investigated the physicochemical properties,enzyme activities,volatile flavor components,microbial communities,and sensory evaluation of high-temperature Daqu(HTD)during the maturation process,and a standar... This study investigated the physicochemical properties,enzyme activities,volatile flavor components,microbial communities,and sensory evaluation of high-temperature Daqu(HTD)during the maturation process,and a standard system was established for comprehensive quality evaluation of HTD.There were obvious changes in the physicochemical properties,enzyme activities,and volatile flavor components at different storage periods,which affected the sensory evaluation of HTD to a certain extent.The results of high-throughput sequencing revealed significant microbial diversity,and showed that the bacterial community changed significantly more than did the fungal community.During the storage process,the dominant bacterial genera were Kroppenstedtia and Thermoascus.The correlation between dominant microorganisms and quality indicators highlighted their role in HTD quality.Lactococcus,Candida,Pichia,Paecilomyces,and protease activity played a crucial role in the formation of isovaleraldehyde.Acidic protease activity had the greatest impact on the microbial community.Moisture promoted isobutyric acid generation.Furthermore,the comprehensive quality evaluation standard system was established by the entropy weight method combined with multi-factor fuzzy mathematics.Consequently,this study provides innovative insights for comprehensive quality evaluation of HTD during storage and establishes a groundwork for scientific and rational storage of HTD and quality control of sauce-flavor Baijiu. 展开更多
关键词 microbial community high-temperature Daqu comprehensive quality evaluation entropy weight method maturation process
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基于不同前处理方法结合全二维气相色谱飞行时间质谱解析红星二锅头白酒的风味成分 被引量:4
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作者 于立娟 田红云 +3 位作者 单群 孟士皓 冯思雨 邹弯 《食品与发酵工业》 北大核心 2025年第8期332-340,I0021-I0047,共36页
采用顶空固相微萃取(headspace solid-phase microextraction,HS-SPME)和液液萃取(liquid-liquid extraction,LLE)结合全二维气相色谱飞行时间质谱(comprehensive two-dimensional gas chromatography time of flight mass spectrometry... 采用顶空固相微萃取(headspace solid-phase microextraction,HS-SPME)和液液萃取(liquid-liquid extraction,LLE)结合全二维气相色谱飞行时间质谱(comprehensive two-dimensional gas chromatography time of flight mass spectrometry,GC×GC-TOF-MS)以及香气活度值(odour active value,OAV),对红星二锅头白酒的挥发性成分进行全面解析。研究发现,HS-SPME、LLE分别定性出928、802种挥发性化合物,共计定性出1304种挥发性化合物,共同定性出426种挥发性化合物。基于HS-SPME数据,通过香气数据库筛选出具有香气特征的382种香气化合物,其中酯类相对百分含量占比最高,其次是醇类、酸类和醛类。计算得到了49种香气化合物OAV>1,其中酯类(辛酸乙酯、异戊酸乙酯等)和萜烯类(β-大马酮)对白酒风味的贡献最大,醛类(异戊醛、己醛等)和含硫类(二甲基三硫)其次,醇类(1-辛烯-3-醇)和含氮类(2,3,5-三甲基吡嗪)也有一定风味贡献。该研究丰富了红星二锅头白酒的风味研究,也为下一步生产研究及调控提供了理论和数据支撑。 展开更多
关键词 红星二锅头白酒 全二维气相色谱飞行时间质谱(comprehensive two-dimensional gas chromatography time of flight mass spectrometry GC×GC-TOF-MS) 挥发性化合物 顶空固相微萃取(headspace solid-phase microextraction HS-SPME) 液液萃取(liquid-liquid extraction LLE)
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Knockdown of SlEMS1 causes male sterility in tomato 被引量:1
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作者 Yu He Juan Wang +5 位作者 Jingang Hu Jinhui Zheng Ziyi Guo Qinghui Yu Qinghua Shi Yan Zhang 《Horticultural Plant Journal》 2025年第2期939-942,共4页
Tomato(Solanum lycopersicum)is one of the most consumed vegetable crops around the world,and its breeding is performed by exploiting heterosis in F1hybrid crosses.Male sterility is one of the most desirable agronomic ... Tomato(Solanum lycopersicum)is one of the most consumed vegetable crops around the world,and its breeding is performed by exploiting heterosis in F1hybrid crosses.Male sterility is one of the most desirable agronomic traits in tomato hybrid seed production,as it can reduce the cost of artificial emasculation and ensure high varietal purity.Abnormal pollen development is a critical factor for male sterility.To date,several genes have been identified to be involved in pollen development,in which EXCESS MICROSPOROCYTES1(EMS1)controls the formation of tapetum,which is necessary for pollen production(Chang et al.,2011).EMS1 encodes a leucine-rich repeat receptor-like kinase that is specifically expressed in the tapetum.In Arabidopsis,the anthers in the ems1mutant lack tapetal cells but can produce excess microsporocytes,which do not undergo cytokinesis,leading to microsporogenesis failure and male sterility(Zhao et al.,2002).However,there is no evidence of the role of EMS1 in tomato pollen development,which limits a comprehensive understanding of the molecular mechanism underlying tomato male fertility. 展开更多
关键词 BREEDING CROPS COMPREHENSIVE
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Geological-engineering comprehensive evaluation model and application of feasibility of hydraulic fracturing in hydrate-bearing sediments 被引量:1
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作者 Tian-Kui Guo Lin-Rui Xue +5 位作者 Ming Chen Bo Zhang Zhen-Tao Li Wen-Jie Huang Xiao-Qiang Liu Zhan-Qing Qu 《Petroleum Science》 2025年第3期1140-1154,共15页
Natural gas hydrates(hereinafter referred to as hydrates)are a promising clean energy source.However,their current development is far from reaching commercial exploitation.Reservoir stimulation tech-nology provides ne... Natural gas hydrates(hereinafter referred to as hydrates)are a promising clean energy source.However,their current development is far from reaching commercial exploitation.Reservoir stimulation tech-nology provides new approaches to enhance hydrate development effectiveness.Addressing the current lack of quantitative and objective methods for evaluating the fracability of hydrate reservoirs,this study clarifies the relationship between geological and engineering fracability and proposes a comprehensive evaluation model for hydrate reservoir fracability based on grey relational analysis and the criteria importance through intercriteria correlation method.By integrating results from hydraulic fracturing experiments on hydrate sediments,the fracability of hydrate reservoirs is assessed.The concept of critical construction parameter curves for hydrate reservoirs is introduced for the first time.Additionally,two-dimensional fracability index evaluation charts and three-dimensional fracability construction condition discrimination charts are established.The results indicate that as the comprehensive fracability index increases,the feasibility of forming fractures in hydrate reservoirs improves,and the required normalized fracturing construction parameters gradually decrease.The accuracy rate of the charts in judging experimental results reached 89.74%,enabling quick evaluations of whether hydrate reservoirs are worth fracturing,easy to fracture,and capable of being fractured.This has significant engineering implications forthehydraulicfracturingof hydratereservoirs. 展开更多
关键词 Hydraulic fracturing HYDRATES Fracability evaluation Comprehensive fracability index Fracability chart
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The “SOOTEST-ICU” bundle for optimizing cerebral hypoxia and reperfusion to minimize brain injury after resuscitation from cardiac arrest 被引量:1
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作者 Rui Shao Chenchen Hang +3 位作者 Xingsheng Wang Luying Zhang Fei Shao Ziren Tang 《World Journal of Emergency Medicine》 2025年第3期206-211,共6页
BACKGROUND:Post-cardiac arrest brain injury remains the leading cause of mortality and longterm disability in patients following cardiac arrest(CA).However,optimizing clinical management strategies for bundled therapy... BACKGROUND:Post-cardiac arrest brain injury remains the leading cause of mortality and longterm disability in patients following cardiac arrest(CA).However,optimizing clinical management strategies for bundled therapy after CA still faces challenges.METHODS:For this literature review,we searched PubMed,Web of Science,and SpringerLink databases for high-quality studies published between December 1982 and July 1,2024.The search included randomized clinical trials,meta-analyses,systematic reviews,and observational studies.References in included studies were also checked to identify additional sources.RESULTS:Many studies have identified potential targets for interventions to mitigate brain injury and improve outcomes for post-resuscitated patients.To optimize clinical management strategies to minimize brain injury after CA,we developed the acronym “SOOTEST-ICU” bundle,which includes “SOOTEST” therapy to optimize peripheral oxygen delivery and “ICU” intervention to optimize the cerebral oxygen cascade.The order of the “SOOTEST” treatment was organized based on the severity and importance of brain oxygen aff ecting brain injury.It includes systolic blood pressure and mean arterial pressure management,oxygenation and ventilation management,original etiological treatment,temperature control,electrolytes and acid basic status,seizure control,and targeted substrate delivery.The acronym “ICU” intervention includes intracerebral oxygen delivery,cerebral oxygen diff usion,and oxygen utilization.CONCLUSION:The “SOOTEST-ICU” therapy is developed to optimize oxygen and substrate cascades to minimize brain injury after CA. 展开更多
关键词 Cardiac arrest Brain injury Comprehensive therapy Cerebral oxygen cascade
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A comprehensive analysis method for adverse geology in tunnels based on geological information and multi-source geophysical data 被引量:1
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作者 Peng Wang Shi-shu Zhang +5 位作者 Wei-dong Chen Yi-guo Xue Zi-ming Qu Hua-bo Xiao Mao-xin Su Kai Zhang 《Applied Geophysics》 2025年第1期43-52,232,共11页
Advanced geological prediction is a crucial means to ensure safety and efficiency in tunnel construction.However,diff erent advanced geological forecasting methods have their own limitations,resulting in poor detectio... Advanced geological prediction is a crucial means to ensure safety and efficiency in tunnel construction.However,diff erent advanced geological forecasting methods have their own limitations,resulting in poor detection accuracy.Using multiple methods to carry out a comprehensive evaluation can eff ectively improve the accuracy of advanced geological prediction results.In this study,geological information is combined with the detection results of geophysical methods,including transient electromagnetic,induced polarization,and tunnel seismic prediction,to establish a comprehensive analysis method of adverse geology.First,the possible main adverse geological problems are determined according to the geological information.Subsequently,various physical parameters of the rock mass in front of the tunnel face can then be derived on the basis of multisource geophysical data.Finally,based on the analysis results of geological information,the multisource data fusion algorithm is used to determine the type,location,and scale of adverse geology.The advanced geological prediction results that can provide eff ective guidance for tunnel construction can then be obtained. 展开更多
关键词 Advanced geological prediction Comprehensive analysis Geological information Transient electromagnetic Induced polarization Tunnel seismic prediction
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Association of ZWINT Expression with Clinicopathologic Characteristics and Prognosis in Breast Cancer Patients 被引量:1
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作者 Bei Liu Qin Wang +6 位作者 Xiao-hong Min Han-han Liu Huan Wu Hui Xu Jun-bo Hu Yong-qing Tong Zi-ming Huang 《Current Medical Science》 2025年第4期775-788,共14页
Objective ZW10 interacting kinetochore protein(ZWINT)has been demonstrated to play a pivotal role in the growth,invasion,and migration of cancers.Nevertheless,whether the expression levels of ZWINT are significantly c... Objective ZW10 interacting kinetochore protein(ZWINT)has been demonstrated to play a pivotal role in the growth,invasion,and migration of cancers.Nevertheless,whether the expression levels of ZWINT are significantly correlated with clinicopathological characteristics and prognostic outcomes of patients with breast cancer remains elusive.This study systematically investigated the clinical significance of ZWINT expression in breast cancer through integrated molecular subtyping and survival analysis.Methods We systematically characterized the spatial expression pattern of ZWINT across various breast cancer subtypes and assessed its prognostic significance using an integrated bioinformatics approach that involved multi-omics analysis.The approach included the Breast Cancer Gene-Expression Miner v5.1(bc-GenExMiner v5.1),TNMplot,MuTarget,PrognoScan database,and Database for Annotation,Visualization,and Integrated Discovery(DAVID).Results Our analysis revealed consistent upregulation of ZWINT mRNA and protein expression across distinct clinicopathological subtypes of breast cancer.ZWINT overexpression demonstrated significant co-occurrence with truncating mutations in cadherin 1(CDH1)and tumor protein p53(TP53),suggesting potential functional crosstalk in tumor progression pathways.The overexpression of ZWINT correlated with adverse clinical outcomes,showing 48%increased mortality risk(overall survival:HR 1.48,95%CI 1.23–1.79),66%higher recurrence probability(relapse-free survival:1.66,95%CI 1.50–1.84),and 63%elevated metastasis risk(distant metastasis-free survival:HR 1.63,95%CI 1.39–1.90).Multivariate Cox regression incorporating TNM staging and molecular subtypes confirmed ZWINT as an independent prognostic determinant(P<0.001,Harrell’s C-index=0.7827),which was validated through bootstrap resampling(1000 iterations).Conclusion ZWINT may serve as a potential biomarker for prognosis and a possible therapeutic target alongside TP53/CDH1 in breast cancer. 展开更多
关键词 ZW10 interacting kinetochore protein(ZWINT) Breast cancer PROGNOSIS Public databases Prognostic value Comprehensive analysis
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The serum fascin-1 and tumor components containing this protein in patients with head and neck squamous cell carcinoma:A pilot study 被引量:1
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作者 Gelena V.Kakurina Elena E.Sereda +4 位作者 Marina N.Stakheeva Liubov Tashireva Olga V.Cheremisina Irina V.Kondakova Evgeny L.Choinzonov 《Journal of Biomedical Research》 2025年第5期534-537,I0046,I0047,共6页
Dear Editor,Local recurrence and cervical lymph node metastases are major causes of mortality in patients with head and neck squamous cell carcinoma(HNSCC).To date,none of the proposed strategies for predicting outcom... Dear Editor,Local recurrence and cervical lymph node metastases are major causes of mortality in patients with head and neck squamous cell carcinoma(HNSCC).To date,none of the proposed strategies for predicting outcomes in this disease have proven fully effective,and a comprehensive physical examination remains the primary method for early detection and monitoring of HNSCC. 展开更多
关键词 serum fascin cervical lymph node metastases tumor components comprehensive physical examination head neck squamous cell carcinoma hnscc head neck squamous cell carcinoma pilot study local recurrence
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Brief Introduction to “Journal of Jilin University(Science Edition)”
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《吉林大学学报(理学版)》 北大核心 2025年第4期F0003-F0003,共1页
“Journal of Jilin University(Science Edition)”is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the People,s Republic of Chi... “Journal of Jilin University(Science Edition)”is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the People,s Republic of China.The journal started publication in 1955.The original name at starting publication was“Journal of Natural Science of Northeast People University”,which was changed into “Acta Scientiarum Naturalium Universitatis Jilinensis”in 1958owing to the name change of the university. 展开更多
关键词 comprehensive academic journal name change SCIENCE Jilin University Academic Journal scientiarum naturalium Ministry Education JOURNAL
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Brief Introduction to“Journal of Jilin University(Science Edition)”
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《吉林大学学报(理学版)》 北大核心 2025年第6期F0003-F0003,共1页
“Journal of Jilin University(Science Edition)”is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the People s Republic of Chi... “Journal of Jilin University(Science Edition)”is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the People s Republic of China.The journal started publication in 1955.The original name at starting publication was“Journal of Natural Science of Northeast People University”,which was changed into“Acta Scientiarum Naturalium Universitatis Jilinensis”in 1958 owing to the name change of the university. 展开更多
关键词 comprehensive academic journal name change SCIENCE Jilin University Academic Journal scientiarum naturalium Ministry Education Journal
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Discussion on Methods and Influence Factors for Minimum Propulsion Power Assessment
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作者 ZHAN Xing−yu MAO Xiao−fei LI Ting−qiu 《船舶力学》 北大核心 2025年第6期888-900,共13页
Currently,the International Maritime Organization(IMO)has approved and implemented the assessment requirement for Minimum Propulsion Power(MPP)of ships in adverse sea conditions.The assessment method and relevant infl... Currently,the International Maritime Organization(IMO)has approved and implemented the assessment requirement for Minimum Propulsion Power(MPP)of ships in adverse sea conditions.The assessment method and relevant influence factors will have a vital impact on ship's design and operation.On the other hand,MPP is essentially a criterion for manoeuvring safety at actual seas.However,the practical assessment methods adopted in IMO guidelines do not directly and accurately account for ship's coursekeeping ability in severe seas.A time-domain comprehensive method with supplementary course-keeping ability criteria has been proposed in the authors'preliminary research.Based on an updated mathematical model and criteria,this paper presents more detailed elaborations,results and discussions on the time-domain method,including the comparative analyses with a power line method and two steady-state equilibrium methods based on IMO guidelines and draft.Discussions on the influences of key factors,involving criterion conditions and calculation parameters,are also presented.The results indicate that different methods exhibit varying advantages and complexity in MPP assessment,thus constituting a multi-level assessment framework for MPP.In particular,the time-domain comprehensive assessment has a higher accuracy with more realistic description of manoeuvre behaviors,capable of offering a solution for the ships that cannot meet other assessments,or for the assessment requiring additional course-keeping ability.Furthermore,an expanded range of wave direction sets a stricter but potentially necessary requirement,while using the self-propulsion factors at low speeds can eliminate the unnecessary conservation of assessment result caused by those at design speed. 展开更多
关键词 manoeuvrability in actual seas minimum propulsion power comprehensive assessment manoeuvrability criterion course keeping
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From Manufacturing Giant to Innovation Powerhouse
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《China Today》 2025年第12期22-23,共2页
During the 14th Five-Year Plan period,China has further strengthened its industrial system,making it more complete,efficient,and resilient.Today,China has solidified its position as the world’s largest manufacturer,d... During the 14th Five-Year Plan period,China has further strengthened its industrial system,making it more complete,efficient,and resilient.Today,China has solidified its position as the world’s largest manufacturer,distinguished by its uniquely comprehensive industrial system. 展开更多
关键词 RESILIENCE industrial systemmaking industrial system MANUFACTURING comprehensive industrial system innovation
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First Record of Achalinus juliani Ziegler et al., 2019 (Serpentes: Xenodermidae) from China
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作者 Yanyuan XIE Ruigang YANG +2 位作者 Shengyuan LIU Zhengjun WU Zening CHEN 《Asian Herpetological Research》 2025年第4期392-394,共3页
Dear Editor, The family Xenodermidae encompasses six recognized genera, among which Achalinus Peters, 1869, represents the most species-rich taxon. This genus is extensively distributed across eastern and southeastern... Dear Editor, The family Xenodermidae encompasses six recognized genera, among which Achalinus Peters, 1869, represents the most species-rich taxon. This genus is extensively distributed across eastern and southeastern Asia, from northern Vietnam through southwestern China, with some populations extending into Japan (Zhao, 2006;Li et al., 2024). Recent advancements in comprehensive fieldwork and molecular techniques have facilitated the revelation of previously underestimated biodiversity within the genus Achalinus. Scientific literature has recorded the discovery and description of over 20 new species within the past five years (Li et al., 2024;Xu et al., 2025). Currently, 28 species are recognized within the genus, with a substantial majority (21 species) found in China (Uetz et al., 2025). 展开更多
关键词 Achalinus Xenodermidae molecular techniques China comprehensive fieldwork BIODIVERSITY
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