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基于OpenAL的三维音效技术的研究 被引量:5
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作者 杨珠敏 陈定方 《湖北工业大学学报》 2009年第2期43-46,共4页
三维音效是一组声音效果的集合,用来加强由扬声器或耳机等声音输出设备所产生的立体感,或使听众产生一种错觉,即声音来自于三维空间的各个方位,包括听众的前后左右及上方、下方.在虚拟环境中,使用3D音效模拟音源的位置与运动,以物理运... 三维音效是一组声音效果的集合,用来加强由扬声器或耳机等声音输出设备所产生的立体感,或使听众产生一种错觉,即声音来自于三维空间的各个方位,包括听众的前后左右及上方、下方.在虚拟环境中,使用3D音效模拟音源的位置与运动,以物理运动学、物理声学、人的生理声学、心理声学等的研究成果为理论基础,以数字信号分析、处理、合成为实现手段,以耳机或扬声器为输出工具,实时合成能反映等效三维真实空间中运动物体特性的音频信号.讨论了三维音效的关键技术,包括声音的定位、头相关传输函数,以及相关的编程工具OpenAL的特性,并与DirectX DirectSound进行比较,最后给出一个OpenAL的实例. 展开更多
关键词 三维音效 环境音效扩展 openal
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创新声卡上的OpenAL标志是何物?
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作者 颜东成 《微型计算机》 北大核心 2001年第23期17-18,共2页
关键词 声卡 openal 计算机
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Call for Papers from Agricultural Products Processing and Storage
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《肉类研究》 北大核心 2026年第1期I0017-I0017,共1页
Agricultural Products Processing and Storage(ISSN 3059-4510,Owner:Hunan Academy of Agricultural Sciences,China.Production and hosting:Springer Nature)is an international,peer-reviewed open access journal with the aim ... Agricultural Products Processing and Storage(ISSN 3059-4510,Owner:Hunan Academy of Agricultural Sciences,China.Production and hosting:Springer Nature)is an international,peer-reviewed open access journal with the aim to offer a platform for the rapid dissemination of signifi cant,novel,and high-impact research in the fi elds of agricultural product processing science,technology,engineering,and nutrition.Additionally,supplemental issues are curated and published to facilitate in-depth discussions on special topics. 展开更多
关键词 NUTRITION SCIENCE open access journal agricultural products processing STORAGE technology ENGINEERING agricultural product
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Call for Papers from Journal of Future Foods
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《食品科学》 北大核心 2026年第2期I0027-I0027,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Scicnces.Production and Hosting:Elsevier B.V.on bchalf of KeAi Communications Co.,Ltd)is an international,peer reviewed open access joumal belonging... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Scicnces.Production and Hosting:Elsevier B.V.on bchalf of KeAi Communications Co.,Ltd)is an international,peer reviewed open access joumal belonging to the discipline of food science and technology.The aim of the joumal is to report latest research results of high-tech in food science.We welcone submissions that drive the ficld of food scicnce towards whole food nutrition,intelligence and high technology. 展开更多
关键词 high technology open access ficld food scicnce JOURNAL whole food nutrition technology future foods food science
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Call for Papers from Journal of Future Foods
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《食品科学》 北大核心 2026年第4期I0027-I0027,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belongi... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 whole food nutritionintelligence high technology high tech open access journal whole food nutrition food science technology INTELLIGENCE
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Call for Papers from Journal of Future Foods
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《肉类研究》 北大核心 2026年第1期I0012-I0012,共1页
Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belongi... Journal of Future Foods(ISSN 2772-5669.Owner:Beijing Academy of Food Sciences.Production and Hosting:Elsevier B.V.on behalf of KeAi Communications Co.,Ltd.)is an international,peer-reviewed open access journal belonging to the discipline of food science and technology.The aim of the journal is to report latest research results of high-tech in food science.We welcome submissions that drive the field of food science towards whole food nutrition,intelligence and high technology. 展开更多
关键词 whole food nutritionintelligence high technology high tech open access journal whole food nutrition food science technology INTELLIGENCE
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Hainan's Bold Experiment Why China is redefining openness by drawing a line
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作者 Antony Hardi 《China Report ASEAN》 2026年第3期36-37,共2页
When China announced that it would “seal customs operations” in Hainan,the phrase travelled poorly beyond its borders. To many foreign readers, the term sounds defensive, even restrictive—as if an island were being... When China announced that it would “seal customs operations” in Hainan,the phrase travelled poorly beyond its borders. To many foreign readers, the term sounds defensive, even restrictive—as if an island were being closed off at a time when the global economy urgently needs openness.From Southeast Asia, however, the policy looks less like retreat and more like revelation.It shines light on how China’s understanding of openness has evolved—shaped not by slogans, but by the trade frictions of recent years. What is unfolding in Hainan is not an attempt to close an island, but an effort to define,with unusual precision, where openness begins and how it is sustained. 展开更多
关键词 trade frictions customs operations OPENNESS HAINAN economic openness
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What Can Europe Learn from a More Open China?
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作者 THOMAS KARLSSON 《China Today》 2026年第2期40-42,共3页
China’s commitment to high-standard opening-up during its 15th Five-Year Plan period offers Europe an alternative approach to economic resilience.IN medical practice,a wise doctor does not treat a fever by plunging t... China’s commitment to high-standard opening-up during its 15th Five-Year Plan period offers Europe an alternative approach to economic resilience.IN medical practice,a wise doctor does not treat a fever by plunging the patient into an ice bath.The sudden shock may lower the temperature,but it risks systemic collapse.Instead,the proper treatment should support the body’s own resilience,combat the infection. 展开更多
关键词 systemic collapse OPENNESS high standard opening up economic resilience ice baththe medical practice economic resiliencein
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Enhancing High-Level Opening Up
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《ChinAfrica》 2026年第3期2-2,共1页
Hainan Province in south China is the country’s second-largest island and the largest free trade port by area.It has entered a historic phase in China’s drive to promote high-level institutional opening up.On 18 Dec... Hainan Province in south China is the country’s second-largest island and the largest free trade port by area.It has entered a historic phase in China’s drive to promote high-level institutional opening up.On 18 December 2025,Hainan officially launched island-wide special customs operations,commonly referred to as“customs closure.”From that date,goods entering or leaving the island,except those traded with the Chinese mainland,are subject to simplified customs procedures and potentially reduced or zero tariffs. 展开更多
关键词 free trade port Hainan Province reduced zero tariff high level opening up simplified customs procedures customs closure institutional opening up
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Aims and Scope
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《CAAI Transactions on Intelligence Technology》 2026年第1期F0002-F0002,共1页
Sponsored by Chongqing University of Technology(CQUT)and the Chinese Association for Artificial Intelligence(CAAI),CAAI Transactions on Intelligence Technology is a gold Open Access journal that publishes articles on ... Sponsored by Chongqing University of Technology(CQUT)and the Chinese Association for Artificial Intelligence(CAAI),CAAI Transactions on Intelligence Technology is a gold Open Access journal that publishes articles on the theoretical and experimental aspects of artificial intelligence technology.This journal is a high-quality international platform for the exchange of the latest academic developments from the global artificial intelligence community. 展开更多
关键词 artificial intelligence caai caai experimental aspects gold open access journal gold open access theoretical aspects academic developments artificial intelligence
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Fueling the Future: AAetok’s New Road to Openness
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作者 Xu Lindi(Text/Photos) Zhang Xu(Text/Photos) +1 位作者 Li Yilei(Text/Photos) Li Nan(Translated) 《China's Tibet》 2026年第1期29-35,共7页
Metok,located in Nyingchi,the Xizang Autonomous Region,is known as the last county in China to be connected by road.Poor transportation and limited access to petroleum were two obstacles to its development.As soon as ... Metok,located in Nyingchi,the Xizang Autonomous Region,is known as the last county in China to be connected by road.Poor transportation and limited access to petroleum were two obstacles to its development.As soon as the highway connecting Metok and the outside world was completed in 2014,China National Petroleum Corporation’s(CNPC)first gas station in the county was put into operation,providing the momentum for this"secret land of Lotus"and helping it embark on a journey toward openness and prosperity. 展开更多
关键词 Metok ROAD Nyingchi FUTURE OPENNESS FUELING gas station Xizang
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Call for Papers
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《Geodesy and Geodynamics》 2026年第2期294-294,共1页
Geodesy and Geodynamics focuses on publishing the latest and innovative research findings in Geodesy and Geodynamics.The journal has been indexed in databases,including EI Compendex,Scopus,ESCI,WJCl,CSCD,Geobase,GeoRe... Geodesy and Geodynamics focuses on publishing the latest and innovative research findings in Geodesy and Geodynamics.The journal has been indexed in databases,including EI Compendex,Scopus,ESCI,WJCl,CSCD,Geobase,GeoRef,and NASA ADS.All accepted papers are open access on ScienceDirect,free of charge for readers(http://www.sciencedirect.com/science/journal/16749847). 展开更多
关键词 GEODYNAMICS open access research findings GEODESY geodesy geodynamics SCIENCEDIRECT
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Openness in a Century-Old Community
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作者 XIA YUANYUAN 《China Today》 2026年第3期44-47,共4页
Local residents,artists,and entrepreneurs who converge on Haikou’s historical Qilou Street are contributing to a new chapter in the story of Hainan’s opening-up.MORE than 100 years ago,the area alongQilou(Sotto Port... Local residents,artists,and entrepreneurs who converge on Haikou’s historical Qilou Street are contributing to a new chapter in the story of Hainan’s opening-up.MORE than 100 years ago,the area alongQilou(Sotto Portico)Street in Haikou,capital of Hainan Province,served asthe embarkation point for Hainanesesetting out on their maritime voyages to seek greener pastures. 展开更多
关键词 ARTISTS OPENNESS HAINAN local residents qilou street ENTREPRENEURS Haikou maritime voyages
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沈鼓集团与OPEN MIND:从效率瓶颈到叶轮加工的技术革新
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作者 勾鑫彤 《金属加工(冷加工)》 2026年第1期54-55,共2页
沈鼓集团作为中国装备制造业核心企业,每年需生产2000余个叶轮,面对工件复杂度与精度要求提升带来的效率瓶颈,沈鼓集团引入hyperMILL软件,开发了叶轮自动化编程模块、“3+2直线轴加工三元叶轮”等工艺方案,集成插铣、叶轮摆线铣削等先... 沈鼓集团作为中国装备制造业核心企业,每年需生产2000余个叶轮,面对工件复杂度与精度要求提升带来的效率瓶颈,沈鼓集团引入hyperMILL软件,开发了叶轮自动化编程模块、“3+2直线轴加工三元叶轮”等工艺方案,集成插铣、叶轮摆线铣削等先进技术,借助软件智能避让、刀轨规划、虚拟机床模拟仿真等,提高了加工效率,提升了产品质量的一致性,降低了刀具成本与试错成本,为高端装备制造领域的智能化升级奠定基础。 展开更多
关键词 沈鼓集团 OPEN MIND HYPERMILL 叶轮加工
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Storied Street,Fresh Faces
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作者 XIA YUANYUAN 《ChinAfrica》 2026年第3期31-33,共3页
Local residents,international artists and entrepreneurs are converging on Haikou’s historical Qilou Street,writing a new chapter of openness in Hainan More than 100 years ago,the area along Qilou(Sotto Portico)Street... Local residents,international artists and entrepreneurs are converging on Haikou’s historical Qilou Street,writing a new chapter of openness in Hainan More than 100 years ago,the area along Qilou(Sotto Portico)Street in Haikou,the capital of Hainan Province,served as the embarkation point for Hainanese setting out on their maritime voyages to seek greener pastures. 展开更多
关键词 OPENNESS international artists ENTREPRENEURS Haikou historical Qilou Street maritime voyages embarkation point Hainanprovince
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Visual prognosis following open globe injury:clinical characteristics and risk factors from Vietnam National Eye Hospital
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作者 Phan Thi Thu Huong Tham Truong Khanh Van +2 位作者 Bui Thi Van Anh Hoang Thi Hai Van Pham Ngoc Dong 《International Journal of Ophthalmology(English edition)》 2026年第2期346-353,共8页
AIM:To evaluate the clinical characteristics and risk factors associated with visual prognosis in patients with open globe injuries(OGIs)treated at Vietnam National Eye Hospital.METHODS:A prospective observational stu... AIM:To evaluate the clinical characteristics and risk factors associated with visual prognosis in patients with open globe injuries(OGIs)treated at Vietnam National Eye Hospital.METHODS:A prospective observational study included patients with OGIs treated between June 2023 and June 2024.Data on demographics,injury features,and clinical findings were extracted from medical records.Poor visual outcome was defined as final best-corrected visual acuity(BCVA)worse than 20/400 or no light perception.Multivariable logistic regression was performed to identify independent risk factors.RESULTS:Among 509 patients(636 eyes),the mean age was 35.13y(range 20–51y),and 67.6%were male.After treatment,the proportion of eyes achieving≥20/40 increased from 12.6%to 42.1%,while no light perception decreased from 29.1%to 9.4%.Independent predictors of poor visual outcomes included delayed admission[>4h,odds ratio(OR)=3.33,95%confidence intervals(CI):1.76–6.33,P<0.001],Zone III injury(OR=5.90,95%CI:2.85–12.24,P<0.001),wound length>10 mm(OR=2.59,95%CI:1.60–4.18,P<0.001),relative afferent pupillary defect(RAPD,OR=1.65,95%CI:1.03–2.64,P=0.039),endophthalmitis(OR=1.75,95%CI:1.01–3.03,P=0.047),retinal detachment(OR=3.32,95%CI:2.02–5.45,P<0.001),and eyelid lacerations(OR=1.94,95%CI:1.13–3.33,P=0.016)associated with OGIs.Vitreous hemorrhage(OR=0.44,95%CI:0.22–0.89,P=0.023)was associated with better outcomes,and female gender appeared protective.CONCLUSION:Poor visual outcomes remain common after OGIs,despite improve visual acuity in many cases.Several clinical and injury-related factors are strongly associated with prognosis.Early recognition of these predictors can support risk stratification and improve trauma care in similar settings. 展开更多
关键词 open globe injury visual outcome prognostic factors ocular trauma VIETNAM
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VOF-Based Simulation of Turbulent Air-Water Flow over Gravel Beds in Open Channels
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作者 Abdullah Abdullah Ghulam Mohi Ud Din +2 位作者 Tipu Sultan Muhammad Aleem Muhammad Shareef Shazil 《Fluid Dynamics & Materials Processing》 2026年第3期18-35,共18页
Turbulent flow over gravel beds in open channels is a fundamental yet complex problem in hydraulic engineering,as flow behavior is highly sensitive to channel geometry and bed roughness.In this study,the Volume of Flu... Turbulent flow over gravel beds in open channels is a fundamental yet complex problem in hydraulic engineering,as flow behavior is highly sensitive to channel geometry and bed roughness.In this study,the Volume of Fluid(VOF)method coupled with the standard k-εturbulence model is employed to simulate air-water interactions over gravel beds,with open boundary conditions capturing realistic channel-atmosphere interactions.Numerical simulations are performed to examine how channel design influences the relationship between the friction factor(f)and the Reynolds number(RN).Velocity and VOF contours indicate peak flow near the inlet,with a maximum velocity of 0.64 m/s.The simulations show strong agreement with theoretical predictions,yielding a correlation coefficient of 0.99 for RN,while f and Chezy’s coefficient(C)reach 0.75 and 0.71,respectively.Comparison with experimental measurements shows deviations of approximately 17% for RN,25% for f,and 12% for C.Moreover,further analysis confirms an inverse linear relationship between f and RN,in accordance with classical models such as Bazin’s curves,the Colebrook equation,and Moody’s approximation.Overall,the results demonstrate that the proposed numerical framework reliably captures flow dynamics over gravel beds,offering a robust tool for hydraulic design and performance assessment of open channels. 展开更多
关键词 Friction factor Reynolds number gravel bed open channel VOF modelling
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Aims&Scope
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《Contemporary Social Sciences》 2026年第1期F0002-F0002,共1页
Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and ... Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.The scopes of research fields for consideration include,but not limited to political science,economics,literature,linguistics,journalism and communication,education,sociology,philosophy,history,law,and interdisciplinary research. 展开更多
关键词 global community academic achievements ECONOMICS social sciences China political science reform opening up western regions
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Machine Learning-Based Analysis of Contributing Factors Affecting Autonomous Driving Behavior in Urban Mixed Traffic
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作者 Hoyoon Lee Jeonghoon Jee +1 位作者 Hoseon Kim Cheol Oh 《Computers, Materials & Continua》 2026年第5期1409-1430,共22页
Analyzing the driving behavior of autonomous vehicles(AV)in mixed traffic conditions at urban intersections has become increasingly important for improving intersection design,providing infrastructure-based guidance i... Analyzing the driving behavior of autonomous vehicles(AV)in mixed traffic conditions at urban intersections has become increasingly important for improving intersection design,providing infrastructure-based guidance information,and developing capability-enhanced AV perception systems.This study investigated the contributing factors affecting AV driving behavior using theWaymo Open Dataset.Binarized autonomous driving stability metrics,derived via a kernel density estimation,served as the target variables for a random forest classification model.The model’s input variables included 15 factors divided into four types:intersection-related,surrounding object-related,road infrastructure-related,and time-of-day-related types.The random forest classification model was employed to identify the key factors affecting autonomous driving behavior.In addition,the identified factors were further ranked based on feature importance.SHAP analysis was utilized to enhance model interpretability by quantifying the contribution of each factor and identifying their directional impacts.The type of intersection factor was found to have an importance of 0.243 and was the most influential factor on autonomous driving behavior.On average,intersection-related factors had an importance of 0.196,which is approximately a 31.1%margin over the average importance of surrounding object-related factors.Additionally,the surrounding object-related factors that were collected through sensors on the autonomous vehicle had a high degree of feature importance,especially with the number of pedestrians having the highest importance(0.107)of the types of objects.The correlation between these findings can contribute to the development of various treatments to improvemore harmonized AVs’maneuvering with other road users and facilities in urban mixed traffic environments. 展开更多
关键词 Waymo open dataset autonomous driving stability principal component analysis randomforest SHAP
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空中魔术师的新控盘:变稳机技术资产解密
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作者 王慧婷 南方 邵翥 《中国科技信息》 2026年第5期27-30,共4页
01技术背景:试飞员的“操作难题”与破局关键“空中魔术师”变稳机(实时重构飞控参数、调整飞行品质的试飞平台),可模拟不同机型特性。构型控制器作为核心终端,为试飞员提供构型选择、参数调整及状态指示,是切换飞行特性的关键。国内现... 01技术背景:试飞员的“操作难题”与破局关键“空中魔术师”变稳机(实时重构飞控参数、调整飞行品质的试飞平台),可模拟不同机型特性。构型控制器作为核心终端,为试飞员提供构型选择、参数调整及状态指示,是切换飞行特性的关键。国内现有技术短板显著:中国飞行试验研究院的IFSTA变稳机靠8个拨动开关选参,灵活性不足;基于Open GL的图形化界面,又存在开发复杂、维护成本高的问题。 展开更多
关键词 Open GL 灵活性 技术资产 试飞员 实时重构
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