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Market Economy Requires Wise Government Intervention
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作者 金碚 《China Economist》 2007年第5期1-1,共1页
In China where there is a profound influence of "local magistrates as citizens’ parents" in the traditional sense, people are naturally inclined to rely on government authorities
关键词 In Market Economy requires Wise Government Intervention HIGH
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A Regime of Inequality Requires Compensation
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作者 Li Linghua(National Marine Data & Information Service, SOA) 《Marine Science Bulletin》 CAS 1999年第2期96-96,共1页
"... As was argued by many disadvantaged states during UNCLOS III:The establishment of an economic zone benefiting a limited number of coastal states would lead to inequality de jureand de facto....The institutio... "... As was argued by many disadvantaged states during UNCLOS III:The establishment of an economic zone benefiting a limited number of coastal states would lead to inequality de jureand de facto....The institution of a regime of a right to participate directly or indirectly in the exploration and exploration ... and adisregard for that right would only further widen the economic disparities ...’- Barbara Kwiatkowska: The 200 EEZ in the New Law of the Sea, 1989. 展开更多
关键词 A Regime of Inequality requires Compensation
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Balancing Industrial Competitiveness with Regional Value Requires Policy Wisdom
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作者 金碚 《China Economist》 2016年第6期1-1,共1页
Industrial competitiveness and regional value are fundamentally consistent yet different in that the former relates to businesses while the latter is concerned with households(regional employment,taxes and the environ... Industrial competitiveness and regional value are fundamentally consistent yet different in that the former relates to businesses while the latter is concerned with households(regional employment,taxes and the environment).In a market-based economy,most enterprises are able to'vote with their feet'and move to regions that are favorable to them.For a region,enterprises contribute to regional value only when they set 展开更多
关键词 REAL Balancing Industrial Competitiveness with Regional Value requires Policy Wisdom
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Sustainability Requires Unity
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作者 Jessica Frommer 《ChinAfrica》 2011年第10期37-37,共1页
The world eyes Africa’s agricultural sector to ensure Millennium Development Goals are met GLOBAL leaders united,in 2000,to establish the Millennium Development Goals(MDGs),setting priorities of global proportions to... The world eyes Africa’s agricultural sector to ensure Millennium Development Goals are met GLOBAL leaders united,in 2000,to establish the Millennium Development Goals(MDGs),setting priorities of global proportions to ensure poverty elimination.Eight objectives were established:eradicate extreme poverty and hunger;achieve universal primary education;promote gender equality and empower women;reduce child mortality rates;improve maternal health;combat HIV/AIDS,malaria and other diseases;ensure environmental sustainability;and develop a global partnership for development. 展开更多
关键词 PRO Sustainability requires Unity
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Solving an Age Old Problem A new law requires children to visit their aging parents
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作者 Ni Yanshuo 《ChinAfrica》 2013年第8期28-29,共2页
MORE than 10 years ago, the song Come Home As Often As You Can to See Your Parents became popular in China, reminding young people of their obli- gation to set aside their hectic lives and return to their hometowns to... MORE than 10 years ago, the song Come Home As Often As You Can to See Your Parents became popular in China, reminding young people of their obli- gation to set aside their hectic lives and return to their hometowns to visit their aging parents. Today, the idea expressed in this song has been codified in Chinese law. 展开更多
关键词 Solving an Age Old Problem A new law requires children to visit their aging parents
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Porphyromonas gingivalis-induced glucose intolerance during periapical lesions requires its LPS throught a Th17 immune response
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作者 Sylvie Lê Emma Sturaro +14 位作者 Charlotte Thomas Thibault Canceill Bertrand Ekambi Nawel Fellouah Claude Knauf Anne Abot Christophe Tenailleau Benjamin Duployer Pascale Loubieres Alison Prosper Swann Diemer Rémy Burcelin Franck Diemer Matthieu Minty Vincent Blasco-Baque 《International Journal of Oral Science》 2025年第6期798-810,共13页
This study investigates the role of Interleukin 17(IL-17)in exacerbating periapical lesions caused by Porphyromonas gingivalis(Pg)lipopolysaccharides(LPS)in the context of metabolic disease and its potential impact on... This study investigates the role of Interleukin 17(IL-17)in exacerbating periapical lesions caused by Porphyromonas gingivalis(Pg)lipopolysaccharides(LPS)in the context of metabolic disease and its potential impact on glucose tolerance.Researchers developed a unique mouse model where mice were monocolonized with Pg to induce periapical lesions.After 1 month,they were fed a highfat diet(HFD)for 2 months to simulate metabolic disease and oral microbiota dysbiosis.To explore the role of LPS from Pg,wildtype(WT)mice were challenged with purified LPS from Porphyromonas gingivalis,as well as with LPS-depleted and non-depleted Pg bacteria;IL-17 knockout(KO)mice were also included to assess the role of IL-17 signaling.The impact on bone lysis,periapical injury,glucose intolerance,and immune response was assessed.Results showed that in WT mice,the presence of LPS significantly worsened bone lysis,Th17 cell recruitment,and periapical injury.IL-17 KO mice exhibited reduced bone loss,glucose intolerance,and immune cell infiltration.Additionally,inflammatory markers in adipose tissue were lower in IL-17 KO mice,despite increased dysbiosis.The findings suggest that IL-17 plays a critical role in amplifying Pg-induced periapical lesions and systemic metabolic disturbances.Targeting IL-17 recruitment could offer a novel approach to improving glycemic control and reducing type 2 diabetes(T2D)risk in individuals with periapical disease. 展开更多
关键词 LPS Porphyromonas gingivalis-induced glucose intolerance during periapical lesions requires its LPS throught a Th17 immune response
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Implementing the Rural Vitalization Strategy Requires Patience
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作者 Chen Jie 《Qiu Shi》 2018年第4期125-127,共3页
Implementing the rural vitalization strategy is a long-term task with historic significance,and one that requires both intense and lasting effort.We must have the patience to adapt to local conditions,proceed in incre... Implementing the rural vitalization strategy is a long-term task with historic significance,and one that requires both intense and lasting effort.We must have the patience to adapt to local conditions,proceed in incremental steps,and keep putting in effort as we constantly advance toward the goal of achieving rural and agricultural modernization and the overall vitalization of rural areas. 展开更多
关键词 RURAL Vitalization STRATEGY requires PATIENCE
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Successful Marriage Requires Tolerance
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作者 SHANG YAPING ZHOU GUOPING CHEN SHANSHAN 《Women of China》 1995年第6期48-49,共2页
1 THE question of whether or not the concept of marriage goes against human nature will never be resolved because there is nothing more contradictory in the world than so-called human nature. Everyone should ask a mor... 1 THE question of whether or not the concept of marriage goes against human nature will never be resolved because there is nothing more contradictory in the world than so-called human nature. Everyone should ask a more specific question: What do I want most out of my life? If a person wants peaceful life, he or she should get married. If a person wants freedom, he or she should remain single. Can a person have both a peaceful life and freedom? There is such a thing called an open marriage. But marriage is on the threshold of freedom. In reality, perhaps it is easy or difficult to cross that threshold. But the threshold must be there. Without it, the marriage would be totally open, and the union could not be regarded as a marriage. It is essential that in marriage the idea that the 展开更多
关键词 In Successful Marriage requires Tolerance
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Emerging frontiers in assisted reproductive technology: Balancing innovation and ethics in AI-driven embryo selection and personalized medicine
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作者 Nancy Nair Vaishnavi Mishra +1 位作者 Ankit Badge Sahil Shendre 《Asian pacific Journal of Reproduction》 2025年第4期189-190,共2页
The rapidly evolving environment of assisted reproductive technology(ART)requires consideration of how new innovations are reshaping clinical practice as much as research.In particular,there are three key areas that,w... The rapidly evolving environment of assisted reproductive technology(ART)requires consideration of how new innovations are reshaping clinical practice as much as research.In particular,there are three key areas that,while full of promise,also present significant challenges:the use of artificial intelligence(AI)in embryo selection,the impact of personalized medicine on ART success rates,and the ethical considerations of genetic screening of embryos[1].This letter is meant to provoke further discussion and highlight the need for harmonized global guidelines as these advances continue to reshape the reproductive medicine environment. 展开更多
关键词 embryo selection assisted reproductive technology art requires genetic screening artificial intelligence ai genetic screening embryos embryo selectionthe artificial intelligence personalized medicine
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The energy flexibility potential of short-term HVAC system management in office buildings under both typical and extreme weather conditions in China during the cooling season 被引量:1
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作者 HUANG Bingjie LIU Meng LI Ziqiao 《土木与环境工程学报(中英文)》 北大核心 2025年第4期157-171,共15页
To meet the challenge of mismatches between power supply and demand,modern buildings must schedule flexible energy loads in order to improve the efficiency of power grids.Furthermore,it is essential to understand the ... To meet the challenge of mismatches between power supply and demand,modern buildings must schedule flexible energy loads in order to improve the efficiency of power grids.Furthermore,it is essential to understand the effectiveness of flexibility management strategies under different climate conditions and extreme weather events.Using both typical and extreme weather data from cities in five major climate zones of China,this study investigates the energy flexibility potential of an office building under three short-term HVAC management strategies in the context of different climates.The results show that the peak load flexibility and overall energy performance of the three short-term strategies were affected by the surrounding climate conditions.The peak load reduction rate of the pre-cooling and zone temperature reset strategies declined linearly as outdoor temperature increased.Under extreme climate conditions,the daily peak-load time was found to be over two hours earlier than under typical conditions,and the intensive solar radiation found in the extreme conditions can weaken the correlation between peak load reduction and outdoor temperature,risking the ability of a building’s HVAC system to maintain a comfortable indoor environment. 展开更多
关键词 energy flexibility demand-side management extreme weather HVAC systems thermal requirements
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Hybrid Deep Learning Approach for Automating App Review Classification:Advancing Usability Metrics Classification with an Aspect-Based Sentiment Analysis Framework
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作者 Nahed Alsaleh Reem Alnanih Nahed Alowidi 《Computers, Materials & Continua》 SCIE EI 2025年第1期949-976,共28页
App reviews are crucial in influencing user decisions and providing essential feedback for developers to improve their products.Automating the analysis of these reviews is vital for efficient review management.While t... App reviews are crucial in influencing user decisions and providing essential feedback for developers to improve their products.Automating the analysis of these reviews is vital for efficient review management.While traditional machine learning(ML)models rely on basic word-based feature extraction,deep learning(DL)methods,enhanced with advanced word embeddings,have shown superior performance.This research introduces a novel aspectbased sentiment analysis(ABSA)framework to classify app reviews based on key non-functional requirements,focusing on usability factors:effectiveness,efficiency,and satisfaction.We propose a hybrid DL model,combining BERT(Bidirectional Encoder Representations from Transformers)with BiLSTM(Bidirectional Long Short-Term Memory)and CNN(Convolutional Neural Networks)layers,to enhance classification accuracy.Comparative analysis against state-of-the-art models demonstrates that our BERT-BiLSTM-CNN model achieves exceptional performance,with precision,recall,F1-score,and accuracy of 96%,87%,91%,and 94%,respectively.Thesignificant contributions of this work include a refined ABSA-based relabeling framework,the development of a highperformance classifier,and the comprehensive relabeling of the Instagram App Reviews dataset.These advancements provide valuable insights for software developers to enhance usability and drive user-centric application development. 展开更多
关键词 Requirements Engineering(RE) app review analysis usabilitymetrics hybrid deep learning BERT-BiLSTM-CNN
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东南大学白如帆在《Artificial Intelligence》上发表最新研究成果
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《信息网络安全》 北大核心 2025年第3期402-402,共1页
近日,东南大学计算机与科学工程学院白如帆在人工智能领域国际期刊《Artificial Intelligence》(AIJ,CCF A)上发表题为“On the Computation of Mixed Strategies for Security Games with General Defending Requirements”的论文,介... 近日,东南大学计算机与科学工程学院白如帆在人工智能领域国际期刊《Artificial Intelligence》(AIJ,CCF A)上发表题为“On the Computation of Mixed Strategies for Security Games with General Defending Requirements”的论文,介绍该团队在智能体安全博弈领域内的最新研究成果,白如帆老师为论文唯一第一作者,这也是东南大学第二次以第一、通信单位身份在该期刊发表论文。 展开更多
关键词 Mixed Strategies 智能体 安全博弈 Defending Requirements
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An Improved Hybrid Deep Learning Approach for Security Requirements Classification
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作者 Shoaib Hassan QianmuLi +2 位作者 Muhammad Zubair Rakan AAlsowail Muhammad Umair 《Computers, Materials & Continua》 2025年第3期4041-4067,共27页
As the trend to use the latestmachine learning models to automate requirements engineering processes continues,security requirements classification is tuning into the most researched field in the software engineering ... As the trend to use the latestmachine learning models to automate requirements engineering processes continues,security requirements classification is tuning into the most researched field in the software engineering community.Previous literature studies have proposed numerousmodels for the classification of security requirements.However,adopting those models is constrained due to the lack of essential datasets permitting the repetition and generalization of studies employing more advanced machine learning algorithms.Moreover,most of the researchers focus only on the classification of requirements with security keywords.They did not consider other nonfunctional requirements(NFR)directly or indirectly related to security.This has been identified as a significant research gap in security requirements engineering.The major objective of this study is to propose a security requirements classification model that categorizes security and other relevant security requirements.We use PROMISE_exp and DOSSPRE,the two most commonly used datasets in the software engineering community.The proposed methodology consists of two steps.In the first step,we analyze all the nonfunctional requirements and their relation with security requirements.We found 10 NFRs that have a strong relationship with security requirements.In the second step,we categorize those NFRs in the security requirements category.Our proposedmethodology is a hybridmodel based on the ConvolutionalNeural Network(CNN)and Extreme Gradient Boosting(XGBoost)models.Moreover,we evaluate the model by updating the requirement type column with a binary classification column in the dataset to classify the requirements into security and non-security categories.The performance is evaluated using four metrics:recall,precision,accuracy,and F1 Score with 20 and 28 epochs number and batch size of 32 for PROMISE_exp and DOSSPRE datasets and achieved 87.3%and 85.3%accuracy,respectively.The proposed study shows an enhancement in metrics values compared to the previous literature studies.This is a proof of concept for systematizing the evaluation of security recognition in software systems during the early phases of software development. 展开更多
关键词 Requirements engineering security requirements deep learning CNN XGBoost CLASSIFICATION
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Re-Exploration for Dietary Iodine Intake in Chinese Adults using the Obligatory Iodine Loss Hypothesis
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作者 Xiaobing Liu Jun Wang +10 位作者 Yajie Li Hongxing Tan Deqian Mao Yanyan Liu Weidong Li Wei Yu Junan Yan Jianhua Piao Chongzheng Guo Xiaoli Liu Xiaoguang Yang 《Biomedical and Environmental Sciences》 2025年第8期952-960,共9页
Objective This study aimed to reexplore minimum iodine excretion and to build a dietary iodine recommendation for Chinese adults using the obligatory iodine loss hypothesis.Methods Data from 171 Chinese adults(19–21 ... Objective This study aimed to reexplore minimum iodine excretion and to build a dietary iodine recommendation for Chinese adults using the obligatory iodine loss hypothesis.Methods Data from 171 Chinese adults(19–21 years old)were collected and analyzed based on three balance studies in Shenzhen,Yinchuan,and Changzhi.The single exponential equation was accordingly used to simulate the trajectory of 24 h urinary iodine excretion as the low iodine experimental diets offered(iodine intake:11-26μg/day)and to further deduce the dietary reference intakes(DRIs)for iodine,including estimated average requirement(EAR)and recommended nutrient intake(RNI).Results The minimum iodine excretion was estimated as 57,58,and 51μg/day in three balance studies,respectively.Moreover,it was further suggested as 57,58,and 51μg/day for iodine EAR,and 80,81,and 71μg/day for iodine RNI or expressed as 1.42,1.41,and 1.20μg/(day·kg)of body weight.Conclusion The iodine DRIs for Chinese adults were established based on the obligatory iodine loss hypothesis,which provides scientific support for the amendment of nutrient requirements. 展开更多
关键词 Iodine requirement Obligatory iodine loss Dietary reference intakes(DRIs) Estimated average requirement(EAR) Recommended nutrient intake(RNI)
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Management of sessile oak(Quercus petraea(Matt.)Liebl.),a major forest species in Europe
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作者 Valeriu‑Norocel Nicolescu Torsten Vor +19 位作者 Robert Brus Martina Đodan Sanja Perić Vilém Podrázský Siniša Andrašev Evgeni Tsavkov Sezgin Ayan Cengiz Yücedağ Pande Trajkov Dana Dina Kolevska Cornelia Buzatu‑Goanță Michal Pástor Vladimír Mačejovský Juraj Modranský Marcin Klisz Wojciech Gil Vasyl Lavnyy Palle Madsen Nicola La Porta Debbie Bartlett 《Journal of Forestry Research》 2025年第5期23-59,共37页
Sessile oak(Quercus petraea(Matt.)Liebl.)is widely distributed across most of Europe particularly the hills and lower mountain ranges,so is considered“the oak of the mountains”.This species grows on a wide variety o... Sessile oak(Quercus petraea(Matt.)Liebl.)is widely distributed across most of Europe particularly the hills and lower mountain ranges,so is considered“the oak of the mountains”.This species grows on a wide variety of soils and at altitudes ranging from sea level to 2200 m,especially in Atlantic and sub-Mediterranean climates,and it is sensitive to low winter temperatures,early and late frosts,as well as high summer temperatures.Sessile oak forms both pure and mixed stands especially with broadleaves such as European beech,European hornbeam,small-leaved lime and Acer spp.These form the understorey of sessile oak stands,promoting the natural shedding of lower branches of the oak and protecting the trunk against epicormic branches.Sessile oak is a long-lived,light-demanding and wind-firm species,owing to its taproot and heart-shaped root system.Its timber,one of the most valuable in Europe,is important for fur-niture-making(both solid wood and veneer),construction,barrels,railway sleepers,and is also used as fuelwood.It is one of the few major tree species in Europe that is regener-ated by seed(naturally or artificially)and by stump shoots in high forest,coppice-with-standards and coppice forests.Sessile oak forests are treated in both regular and irregular systems involving silvicultural techniques such as uniform shelterwood,group shelterwood,irregular shelterwood,irregular high forest,coppice-with-standards and simple coppice.Young naturally regenerated stands are managed by weeding,release cutting and cleaning-respacing,keeping the stands quite dense for good natural pruning.Plantations are based on(1)2-4-year old bare-root or container-grown seedlings produced in nurseries using seeds from genetic resources,seed stands and seed orchards.The density of sessile oak plantations(mostly in rows,but also in clusters)is usually between 4000 and 6000 ind.ha^(−1).Sessile oak silviculture of mature stands includes crown thinning,focus-ing on final crop trees(usually a maximum of 100 ind.ha^(−1))and targeting the production of large-diameter and high quality trees at long rotation ages(mostly over 120 years,sometimes 250-300 years).In different parts of Europe,conversion of simple coppices and coppice-with-standards to high forests is continuing.Even though manage-ment of sessile oak forests is very intensive and expensive,requiring active human intervention,the importance of this species in future European forests will increase in the con-text of climate change due to its high resistance to distur-bance,superior drought tolerance and heat stress resistance. 展开更多
关键词 Sessile oak Ecological requirements Timber VULNERABILITIES MANAGEMENT
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Exporting Perfumes to China:Key Compliance and Import Requirements
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作者 Jarius Ji 《China Detergent & Cosmetics》 2025年第2期12-15,共4页
China's perfume market has been experiencing significant growth.The “2024 China Perfume and Fragrance White Paper”,jointly published by Eternal Group,DSM-Firmenich,and Ipsos in September 2024,reveals that the ma... China's perfume market has been experiencing significant growth.The “2024 China Perfume and Fragrance White Paper”,jointly published by Eternal Group,DSM-Firmenich,and Ipsos in September 2024,reveals that the market surged from 11.4 billion yuan in 2018 to 22.9 billion yuan in 2023,achieving a compound annual growth rate(CAGR) of 15%.With projections estimating a rise to 44 billion yuan by 2028 at a 14% CAGR,the sector's long-term growth prospects remain strong. 展开更多
关键词 growth prospects white paper China COMPLIANCE perfumes perfume market import requirements
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INSTRUCTIONS FOR AUTHORS
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《Applied Mathematics and Mechanics(English Edition)》 2025年第11期I0001-I0002,共2页
1Legal requirements.The author(s)guarantee(s)that the manuscript will not be published elsewhere in any language without the consent of the copyright holders,that the rights of third parties will not be violated,and t... 1Legal requirements.The author(s)guarantee(s)that the manuscript will not be published elsewhere in any language without the consent of the copyright holders,that the rights of third parties will not be violated,and that the publisher will not be held legally responsible should there be any claims for compensation.Authors wishing to include figures or text passages that have already been published elsewhere are required to obtain permission from the copyright holder(s)and to include evidence that such permission has been granted when submitting their papers.Any material received without such evidence will be assumed to originate from the authors. 展开更多
关键词 permissions COPYRIGHT third parties manuscript submission figures text passages publisher liability legal requirements
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Special Issue:Questions&Data for Better Science and Innovation Call for submissions
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《Journal of Data and Information Science》 2025年第2期I0001-I0001,共1页
Editors Yang Wang,Xi'an Jiaotong University Dongbo Shi,Shanghai Jiaotong University Ye Sun,University College London Zhesi Shen,National Science Library,CAS Topic of the Special Issue What are the top questions to... Editors Yang Wang,Xi'an Jiaotong University Dongbo Shi,Shanghai Jiaotong University Ye Sun,University College London Zhesi Shen,National Science Library,CAS Topic of the Special Issue What are the top questions towards better science and innovation and the required data to answer these questions? 展开更多
关键词 better science innovation top questions science innovation required data
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HybridLSTM:An Innovative Method for Road Scene Categorization Employing Hybrid Features
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作者 Sanjay P.Pande Sarika Khandelwal +4 位作者 Ganesh K.Yenurkar Rakhi D.Wajgi Vincent O.Nyangaresi Pratik R.Hajare Poonam T.Agarkar 《Computers, Materials & Continua》 2025年第9期5937-5975,共39页
Recognizing road scene context from a single image remains a critical challenge for intelligent autonomous driving systems,particularly in dynamic and unstructured environments.While recent advancements in deep learni... Recognizing road scene context from a single image remains a critical challenge for intelligent autonomous driving systems,particularly in dynamic and unstructured environments.While recent advancements in deep learning have significantly enhanced road scene classification,simultaneously achieving high accuracy,computational efficiency,and adaptability across diverse conditions continues to be difficult.To address these challenges,this study proposes HybridLSTM,a novel and efficient framework that integrates deep learning-based,object-based,and handcrafted feature extraction methods within a unified architecture.HybridLSTM is designed to classify four distinct road scene categories—crosswalk(CW),highway(HW),overpass/tunnel(OP/T),and parking(P)—by leveraging multiple publicly available datasets,including Places-365,BDD100K,LabelMe,and KITTI,thereby promoting domain generalization.The framework fuses object-level features extracted using YOLOv5 and VGG19,scene-level global representations obtained from a modified VGG19,and fine-grained texture features captured through eight handcrafted descriptors.This hybrid feature fusion enables the model to capture both semantic context and low-level visual cues,which are critical for robust scene understanding.To model spatial arrangements and latent sequential dependencies present even in static imagery,the combined features are processed through a Long Short-Term Memory(LSTM)network,allowing the extraction of discriminative patterns across heterogeneous feature spaces.Extensive experiments conducted on 2725 annotated road scene images,with an 80:20 training-to-testing split,validate the effectiveness of the proposed model.HybridLSTM achieves a classification accuracy of 96.3%,a precision of 95.8%,a recall of 96.1%,and an F1-score of 96.0%,outperforming several existing state-of-the-art methods.These results demonstrate the robustness,scalability,and generalization capability of HybridLSTM across varying environments and scene complexities.Moreover,the framework is optimized to balance classification performance with computational efficiency,making it highly suitable for real-time deployment in embedded autonomous driving systems.Future work will focus on extending the model to multi-class detection within a single frame and optimizing it further for edge-device deployments to reduce computational overhead in practical applications. 展开更多
关键词 HybridLSTM autonomous vehicles road scene classification critical requirement global features handcrafted features
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Pilot plant design and technology performance analysis of pervaporation membrane bioreactor with mechanical vapor compression for bioethanol production
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作者 Jingyun Liu Yin Zhang +4 位作者 Wenda Liu Haoji Jiang Lu Han Zeyi Xiao Senqing Fan 《Chinese Journal of Chemical Engineering》 2025年第6期57-66,共10页
A pilot plant integrating pervaporation membrane bioreactor and mechanical vapor compression for bioethanol production was designed and constructed in the study,with a bioethanol production of 300 t·a^(-1).Key eq... A pilot plant integrating pervaporation membrane bioreactor and mechanical vapor compression for bioethanol production was designed and constructed in the study,with a bioethanol production of 300 t·a^(-1).Key equipment in the process were designed based on bench test data.A pilot-scale fermenter with 20 m^(3) in volume,4 m in height and 2.5 m in diameter was designed based on geometric similarity criterion and power equality criterion.An integrated plate-frame membrane module with 105 plates was newly developed.Compared with conventional batch fermentation,the improvement of equipment utilization efficiency and the cell utilization efficiency can be expected as 1.5-2.0 times and 2-10 times,respectively,with waste water reduced by 70% to 85%.The high-exergy energy requirement for pilot plant was 57.5 k W,of which the broth preheater occupied 85.7%,following by the compressor 1.1%,pump1.9% and fermenter agitator 0.3%.The total energy requirement including distillation for producing 1 kg ethanol(95%(mass)) achieved an energy surplus of 15.6 MJ. 展开更多
关键词 Membrane bioreactor Bioethanol production Technology performances Pilot plant Energy requirement
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