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Inter-Regional Tech Complementarity:A Mechanism for Balanced Development and GVC Upgrading 认领 引用
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作者 Zheng Jianghuai Jin Shengnan 《中国经济学人（中英文）》 2026年第1期2-32,共31页
In the complex architecture of global value-chain(GVC)trade,firms’technological content increasingly reflects external knowledge flows.This study examines how inter-regional technological complementarity shapes firms... In the complex architecture of global value-chain(GVC)trade,firms’technological content increasingly reflects external knowledge flows.This study examines how inter-regional technological complementarity shapes firms’GVC advancement,measured by the domestic value-added rate(DVAR)in exports.Using integrated Chinese microdata(2000-2014),we find this complementarity significantly boosts export DVAR,explaining about one-quarter of its observed growth.Two mechanisms drive this effect:increased use of domestic intermediates and gains in firm productivity.The benefits are especially large for firms with lower human capital and for those in accessible,innovation-peripheral regions,helping narrow productivity gaps across firms and space.Affected firms also exhibit broader export scopes,higher product quality,more diversified destinations,and greater markups-firm-level evidence of GVC upgrading.These findings highlight how external technological linkages drive upgrading and underscore the importance of fostering inter-regional synergies for balanced development. 展开更多
关键词 technological complementarity global value chains domestic value-added rate(DVAR) balanced regional development
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Unveiling Solidification Mechanism and Balanced Strength-Ductility Synergy of Eutectic High-Entropy Alloys 认领 引用 被引量：1
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作者 Yi Qin Yi Li +13 位作者 Xin Jiang Junfeng Duan Ziyu Peng Jingran Huang Yifan Lin Xuwei Qin Bodong Tan Yiheng Ruan Xiaohan Wang Hongxuan Xu Honglei Wang Tianlong Zhang Peijian Shi Yunbo Zhong 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期330-340,共11页
Eutectic high-entropy alloys(EHEAs)have attracted significant attention due to their balanced mechanical properties and promising applications.Nonetheless,the correlation between the solidification mechanism of eutect... Eutectic high-entropy alloys(EHEAs)have attracted significant attention due to their balanced mechanical properties and promising applications.Nonetheless,the correlation between the solidification mechanism of eutectic microstructures and their mechanical properties remains elusive.In this study,we report an Al1.19CoFeNi2.86 EHEA composed of typical regular and irregular lamellar colonies.Both colonies exhibit a dual-phase structure containing face-centered cubic(FCC)and bodycentered cubic(BCC)phases,which collectively induce balanced as-cast strength-ductility synergy.Tensile experiments reveal an as-cast yield strength of~618 MPa,an ultimate tensile strength of~1015 MPa,and a fracture elongation of~9.7%.Through multiscale probing of deformation processes,we unveil that the mixed,regular and irregular,eutectic lamellar microstructure is critical for balancing strength and ductility,stemming from persistent hetero-deformation-induced strain hardening spanning across a wide strain scope.The hybrid structure of regular and irregular lamellar eutectics arises from solute diffusion and associated thermophysical factors during solidification.These findings provide insights into clarifying the structure-property correlation in as-cast EHEAs as well as optimizing their properties. 展开更多
关键词 balanced mechanical properties deformation processes eutectic high-entropy alloys regular and irregular lamellar colonies solidification mechanism
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Rational design of a quasi-0D tungsten tellurite nonlinear optical crystal with exceptionally balanced properties 认领 引用
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作者 Shijie Zhao Lili Li +4 位作者 Tinghui Zhang Huijian Zhao Ning Ye Zhanggui Hu Conggang Li 《Science China Chemistry》 SCIE EI CAS CSCD 2026年第7期3469-3476,共8页
Transition-metal-oxygen polyhedra and heavy p-block motifs typically undergo polymerization into chains,layers,or three-dimensional networks via corner-or edge-sharing,driven by thermodynamic stability,which makes the... Transition-metal-oxygen polyhedra and heavy p-block motifs typically undergo polymerization into chains,layers,or three-dimensional networks via corner-or edge-sharing,driven by thermodynamic stability,which makes the isolation of discrete polyhedral units exceptionally challenging.Breaking with this conventional paradigm,we report a dimensionality engineering strategy that disrupts covalent bridging-oxygen networks to achieve the targeted synthesis of a tungsten tellurite nonlinear optical(NLO)crystal,Ca7(TeO3)6(WO4)(CTWO),which features an unprecedented zero-dimensional(0D)structure composed of fully isolated[WO4]tetrahedra and[TeO3]trigonal pyramids.This unique 0D topological configuration endows CTWO with an ultrawide bandgap of 4.62 eV,the largest reported among acentric tungsten tellurites,corresponding to a UV cutoff at 268 nm.Additionally,CTWO exhibits exceptional NLO properties,including strong SHG efficiency of 6.0×KDP,a high laser-induced damage threshold(LIDT)value of 50×AGS,a sufficient birefringence of 0.12 at 1064 nm,and extended infrared(IR)cutoffs beyond 7.0μm.This work not only demonstrates the efficacy of dimensionality control in modulating band structures and enhancing functional properties in mid-IR NLO materials,but also opens a viable pathway for the rational design of isolated functional units in extended solid-state frameworks. 展开更多
关键词 dimensionality engineering strategy zero-dimensional units tellurite tungstates mid-IR nonlinear optical crystal balanced properties
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Peripheral host engineering in TADF dendrimers:integrating radiative promotion and well-balanced bipolar transport for high-luminance,low-roll-off solution-processable OLEDs 认领 引用
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作者 Yuying Wu Wenkang Shi +6 位作者 Wenbo Yuan Yaotian Zhang Tao Wang Youtian Tao Jingsheng Wang Yunlong Guo Yunqi Liu 《Science China Chemistry》 SCIE EI CAS CSCD 2026年第7期3767-3774,共8页
Single-component solution-processed organic light-emitting diodes(OLEDs)that simultaneously achieve high luminance,high efficiency,and low efficiency roll-off represent a significant challenge.Herein,we report a serie... Single-component solution-processed organic light-emitting diodes(OLEDs)that simultaneously achieve high luminance,high efficiency,and low efficiency roll-off represent a significant challenge.Herein,we report a series of thermally activated delayed fluorescence(TADF)dendrimers(m-CzBr,m-CzPhCz,m-CzCzPh and m-CzTPA)featuring a 4CzIPN emissive core tethered to diverse peripheral host units via flexible alkoxy linkers.The localized LUMO on the 4CzIPN core ensures efficient electron transport,while systematic peripheral host modulation precisely tunes photophysical properties,HOMO levels,and charge transport properties.This molecular design leads to a dramatic improvement in device performance,with external quantum efficiency(EQE)rising from 0.76%(m-CzTPA)to 26.5%(m-CzPhCz)and the maximum luminance(Lmax)increasing from 4407 to 59812 cd m-2.The optimized dendrimer,m-CzPhCz,integrates a high photoluminescence quantum yield,satisfactory charge-transport capability,and highly balanced bipolar carrier transport.These synergistic characteristics facilitate the realization of solution-processed,non-doped TADF-OLEDs that exhibit high external quantum efficiency,together with record-breaking luminance and the smallest efficiency roll-off under high brightness.Impressively,the device achieves unprecedented EQE retention of 25.4%at 5000 cd m-2 and 24%at 10000 cd m-2. 展开更多
关键词 solution-processed organic light-emitting diodes thermally activated delayed fluorescence dendrimers host luminance balanced charge transport
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Balanced mode filtering for scalable Pauli-X gates in high-dimensional OAM space 认领 引用
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作者 Jing Wang Xiang Lu +7 位作者 Yiming Zhao Jiafu Chen Yu Chen Huapeng Ye Xinxing Zhou Shuqing Chen Dianyuan Fan Qingji Zeng 《Frontiers of physics》 SCIE CSCD 2026年第6期179-188,共10页
The orbital angular momentum(OAM)of photons provides a pivotal resource for carrying out high-dimensional quantum Pauli-X operations due to its unique discrete infinite orthogonality,which opens enticing perspectives ... The orbital angular momentum(OAM)of photons provides a pivotal resource for carrying out high-dimensional quantum Pauli-X operations due to its unique discrete infinite orthogonality,which opens enticing perspectives for high-capacity quantum communication and multi-parallel quantum computation.However,the state-of-the-art Pauli-X gates that require cyclic transformation of OAM modes are mostly limited to four modes,face scalability challenges owing to the system redundancy and fidelity degradation induced by increased processing modes.Here,we propose a general strategy to design scalable quantum Pauli-X gates in high-dimensional OAM space by taking full advantage of the order-correlated spatial divergence property of OAM modes.Leveraging the mechanism of balance mode filtering,partitioned phase is embedded between two structurally symmetric Q-plate elements that enable bidirectional mode shifting to filter out the highest-order OAM mode for spatially selective phase modulation.Derived from radial matching between modes and partitioned phase profiles,this design of parallel mode transformation underpins the extension to higher dimensions by merely adjusting filter parameters.We demonstrate the five-mode cyclic transformation with mode purity and diffraction efficiency higher than 92%and 92.7%,respectively.By incorporating polarization-entangled photon sources,we further realize five-dimensional quantum Pauli-X gates encoded on OAM space and experimentally verify the entanglement of output mode states.Low modulation loss and efficient quantum state tomography(QST)techniques endow the reconstructed density matrices with fidelities exceeding 92.3%±0.1%,indicating the well-performed entanglement preservation of output states.These results confirm that our approach achieves scalable quantum Pauli-X gate operations through a simple balanced architecture with high coherence,consolidating a theoretical and experimental foundation for large-scale quantum computation encoded on high-dimensional OAM space. 展开更多
关键词 balanced mode filtering scalable Pauli-X gates high-dimensional OAM space
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An efficient and balanced feature pyramid network:Shared-FPN 认领 引用
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作者 Sulong TIAN Longfei QIN +2 位作者 Wenchao PANG Ying GAO Dexin ZHAO 《Optoelectronics Letters》 EI 2026年第5期295-301,共7页
In the field of object detection,it is challenging to achieve a balance between neck complexity and accuracy.To address this issue,we propose an efficient and decoupled neck module called shared feature pyramid networ... In the field of object detection,it is challenging to achieve a balance between neck complexity and accuracy.To address this issue,we propose an efficient and decoupled neck module called shared feature pyramid network(Shared-FPN).Not only does Shared-FPN not increase the number of model parameters and floating point operations per second(FLOPs),but it also can be easily ported to any of the detection models.It improves on path aggregation feature pyramid network(PAFPN)by using transposed convolution with a large convolution kernel as the upsampling module,designing spatial pyramidal pooling-fast downsampling(SPPFD)based on shared pooling,and designing shared convolution as the right part module.To evaluate the performance of Shared-FPN in object detection tasks,we conducted experiments on object detection datasets.The results show that Shared-FPN achieved excellent performance across all sizes.In particular,on the VOC 2012 dataset,the Shared-FPN’s mean average precision(mAP)was improved by 11.2%compared to FPN with you only look once extended-s(YOLOX-s)as the detector.On the COCO dataset,the Shared-FPN’s mAP was improved by 7.8%compared to FPN and 7.1%compared to PAFPN with faster region-based convolutional neural network(Faster RCNN)as the detector.The Shared-FPN can be easily inserted into any of the detectors for better performance in various scenarios,such as small,medium or large objects. 展开更多
关键词 efficient feature pyramid network object detectionit shared feature pyramid network shared fpn not path aggregation feature pyramid network pafpn balanced transposed convolution floating point
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Balanced Evolution of the Vertical Tilt of Simulated Tropical Cyclone Vortices in a Sheared Environment 认领 引用
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作者 Xingyang ZHOU Liguang WU Yecheng FENG 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2026年第4期751-768,共18页
The development of a vertically aligned vortex is crucial for tropical cyclone(TC)intensification,especially in the presence of environmental vertical wind shear(VWS).In comparison with previous studies,this study pro... The development of a vertically aligned vortex is crucial for tropical cyclone(TC)intensification,especially in the presence of environmental vertical wind shear(VWS).In comparison with previous studies,this study provides more rigorous evidence supporting the role of balanced dynamics in the evolution of vortex tilt by using the potential vorticity(PV)inversion method.Based on two idealized simulations of TCs subjected to nearly constant easterly shear of approximately 6 m s–1 and 10 m s–1,we demonstrate that the wavenumber-1 circulations directly responsible for vortex tilt evolution are predominantly captured by the balanced component,characterized by vortex Rossby waves.Furthermore,the adiabatic lifting resulting from the balanced response of the shear-tilted vortex contributes to enhanced convection in the TC inner core.As an air parcel undergoes cyclonic rotation,it ascends on the right side of the tilt vector,which increases relative humidity,leads to saturation,and drives the development of convective asymmetries,with maximum upward motion aligned with the tilt direction.This study suggests that the response of TC vortices to the environmental VWS involves complex interactions between vortex tilt,asymmetries in TC structure,and convection,all of which can largely be understood within the framework of balanced dynamics. 展开更多
关键词 tropical cyclone vortex tilt balanced dynamics convective asymmetry
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Fluid therapy in acute pancreatitis comparing balanced solutions and normal saline:A systematic review,meta-analysis and trial sequential analysis 认领 引用 被引量：2
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作者 Lin Gao Hsiang-Wei Wang +4 位作者 Zi-Rui Liu Yi-Zhen Xu Lu Ke Wei-Qin Li John A Windsor 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2025年第4期371-380,共10页
Background:Isotonic crystalloids are recommended as the first choice for fluid therapy in acute pan-creatitis(AP),with normal saline(NS)and lactate Ringer’s(LR)used most often.Evidence based recom-mendations on the t... Background:Isotonic crystalloids are recommended as the first choice for fluid therapy in acute pan-creatitis(AP),with normal saline(NS)and lactate Ringer’s(LR)used most often.Evidence based recom-mendations on the type of fluid are conflicting and generally come from small single-center randomized controlled trials(RCTs).We therefore conducted a systematic review and meta-analysis to compare the effect of balanced solutions(BS)versus NS on patient-centered clinical outcomes in AP.Methods:From four databases searched up to October 2024,we included only RCTs of adult patients with AP that compared the use of BS(including LR,acetate Ringer’s,etc.)with NS.The primary out-come was the disease advances from AP to moderately severe and severe AP(MSAP/SAP).Trial sequential analyses(TSA)were conducted to control for type-I and type-II errors and Grading of Recommendations Assessment,Development,and Evaluation(GRADE)was used to assess the quality of evidence.Results:Six RCTs were identified and included,involving 260 patients treated with BS and 298 patients with NS.Patients who received the BS had less MSAP/SAP[odds ratio(OR)=0.50,95%confidence in-terval(CI):0.29 to 0.85,P=0.01,I2=0%;5 studies,299 patients],reduced the need of ICU admission(OR=0.60,95%CI:0.39 to 0.93,P=0.02,I2=0%;5 studies,507 patients)and shorter length of hospital stay[mean difference(MD)=-0.88,95%CI:-1.48 to-0.28,P=0.004,I2=0%;6 studies,558 patients;confirmed by TSA with high certainty]compared with those who received NS.The evidence for most of the clinical outcomes was rated as moderate to low due to the risk of bias,imprecision and inconsistency.Conclusions:BS,compared with NS,was associated with improved clinical outcomes in patients with AP.However,given the moderate to low quality of evidence for most of the outcomes assessed,further trials are warranted. 展开更多
关键词 Acute pancreatitis Fluid therapy Normal saline Balanced solution Systematic review
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Balanced Optimization of Dimensional Accuracy and Printing Efficiency in FDM Based on Data-Driven Modeling 认领 引用 被引量：3
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作者 Liu Changhui Li Hao +5 位作者 Yu Chunlong Liao Xueru Liu Xiaojia Sun Jianzhi Tang Qirong Yu Min 《Additive Manufacturing Frontiers》 CSCD 2025年第2期97-110,共14页
Additive manufacturing(AM),particularly fused deposition modeling(FDM),has emerged as a transformative technology in modern manufacturing processes.The dimensional accuracy of FDM-printed parts is crucial for ensuring... Additive manufacturing(AM),particularly fused deposition modeling(FDM),has emerged as a transformative technology in modern manufacturing processes.The dimensional accuracy of FDM-printed parts is crucial for ensuring their functional integrity and performance.To achieve sustainable manufacturing in FDM,it is necessary to optimize the print quality and time efficiency concurrently.However,owing to the complex interactions of printing parameters,achieving a balanced optimization of both remains challenging.This study examines four key factors affecting dimensional accuracy and print time:printing speed,layer thickness,nozzle temperature,and bed temperature.Fifty parameter sets were generated using enhanced Latin hypercube sampling.A whale optimization algorithm(WOA)-enhanced support vector regression(SVR)model was developed to predict dimen-sional errors and print time effectively,with non-dominated sorting genetic algorithm Ⅲ(NSGA-Ⅲ)utilized for multi-objective optimization.The technique for Order Preference by Similarity to Ideal Solution(TOPSIS)was applied to select a balanced solution from the Pareto front.In experimental validation,the parts printed using the optimized parameters exhibited excellent dimensional accuracy and printing efficiency.This study comprehensively considered optimizing the printing time and size to meet quality requirements while achieving higher printing efficiency and aiding in the realization of sustainable manufacturing in the field of AM.In addition,the printing of a specific prosthetic component was used as a case study,highlighting the high demands on both dimensional precision and printing efficiency.The optimized process parameters required significantly less printing time,while satisfying the dimensional accuracy requirements.This study provides valuable insights for achieving sustainable AM using FDM. 展开更多
关键词 Fused deposition modeling Dimensional accuracy Process parameters Printing efficiency Balanced optimization Sustainable manufacturing
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Digital twin-based structural health monitoring and measurements of dynamic characteristics in balanced cantilever bridge 认领 引用 被引量：2
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作者 Tidarut Jirawattanasomkul Le Hang +4 位作者 Supasit Srivaranun Suched Likitlersuang Pitcha Jongvivatsakul Wanchai Yodsudjai Punchet Thammarak 《Resilient Cities and Structures》 EI CSCD 2025年第3期48-66,共19页
This study developed a digital twin(DT)and structural health monitoring(SHM)system for a balanced cantilever bridge,utilizing advanced measurement techniques to enhance accuracy.Vibration and dynamic strain measuremen... This study developed a digital twin(DT)and structural health monitoring(SHM)system for a balanced cantilever bridge,utilizing advanced measurement techniques to enhance accuracy.Vibration and dynamic strain measurements were obtained using accelerometers and piezo-resistive strain gauges,capturing low-magnitude dynamic strains during operational vibrations.3D-LiDAR scanning and Ultrasonic Pulse Velocity(UPV)tests captured the bridge's as-is geometry and modulus of elasticity.The resulting detailed 3D point cloud model revealed the structure's true state and highlighted discrepancies between the as-designed and as-built conditions.Dynamic properties,including modal frequencies and shapes,were extracted from the strain and acceleration measurements,providing critical insights into the bridge's structural behavior.The neutral axis depth,indicating stress distribution and potential damage,was accurately determined.Good agreement between vibration measurement data and the as-is model results validated the reliability of the digital twin model.Dynamic strain patterns and neutral axis parameters showed strong correlation with model predictions,serving as sensitive indicators of local damage.The baseline digital twin model and measurement results establish a foundation for future bridge inspections and investigations.This study demonstrates the effectiveness of combining digital twin technology with field measurements for real-time monitoring and predictive maintenance,ensuring the sustainability and safety of the bridge infrastructure,thereby enhancing its overall resilience to operational and environmental stressors. 展开更多
关键词 Digital twin Structural health monitoring Balanced cantilever bridge 3D-LiDAR Dynamic strain measurement
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Narrowing Regional Gaps:A Study on the Strategies for Balanced Development of Regional Education in China 认领 引用
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作者 Siqi Wang Yuanyuan Jia +3 位作者 Geman Gao Chang Tian Feng Yu Yu Cai 《Journal of Contemporary Educational Research》 2025年第10期37-41,共5页
By comprehensively analyzing the current status of education development and the achievements of economic development in China,this paper reveals the synergistic effect between the overall improvement of education lev... By comprehensively analyzing the current status of education development and the achievements of economic development in China,this paper reveals the synergistic effect between the overall improvement of education levels and economic growth.The paper points out that although the increase in educational investment has provided talent support for economic development,the imbalance in regional education development still exists.Furthermore,the paper explores the two-way promotion mechanism between education and economic development,and proposes a series of strategies,including balanced layout,targeted support,and innovation-driven development,to achieve the coordinated and balanced development of regional education and narrow regional gaps.These strategies aim to optimize the allocation of educational resources,improve the quality of education,and promote the all-round progress of the economy and society. 展开更多
关键词 Regional gaps Regional education Coordinated and balanced development
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A prototype of 2μm balanced detector for space-borne Coherent Doppler Wind Lidar 认领 引用 被引量：1
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作者 CHEN Bao-Lin JIN Ge +2 位作者 WANG Chong CHEN Lian 无 《红外与毫米波学报》 SCIE EI CAS CSCD 北大核心 2025年第6期1021-1029,共9页
Despite rapid advancements in lidar technology,extremely long-range observation remains a signifi⁃cant challenge.Recently,2μm lasers have demonstrated a potential to be applied in CDWL(Coherent Doppler Wind Lidar)sys... Despite rapid advancements in lidar technology,extremely long-range observation remains a signifi⁃cant challenge.Recently,2μm lasers have demonstrated a potential to be applied in CDWL(Coherent Doppler Wind Lidar)system,for its high atmospheric penetration capability through the atmosphere and high potential la⁃ser power.In this study,we present a 2μm balanced detector that consists of a pair of commercial positive-intrin⁃sic-negative(PIN)diodes with a low-noise transimpedance circuit.To meet the high bandwidth requirements,the highspeed transimpedance circuit and bias voltage tuning method were utilized to overcome the large capaci⁃tance of PIN diodes.The circuit transfer function,stability analysis and noise calculation have been studied.The detector was co-packaged with a data acquisition module for convenient data transmission and bias voltage con⁃trol.The characteristics of the detector,including bandwidth,noise and bias voltage influence,are evaluated in laboratory.Results show that the RMS value of the balanced detector background noise is 539μV and the band⁃widths of the two diodes are 110.8 MHz and 110.3 MHz,respectively.The evaluation results show that the bal⁃anced detector meets the wind measurement requirements and allows for a 1.45×increase in bandwidth through bi⁃as voltage tuning.Our work offers insights into lidar detector design and bandwidth enhancement,providing a valuable reference for researchers and professionals in the field.More importantly,it lays a critical foundation for fu⁃ture ultra-long-range and space-borne 2μm coherent wind lidar systems by addressing key device-level challenges. 展开更多
关键词 balanced detector transimpedance circuit CDWL laser detection
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A novel optimization scheme for structure and balance of compound balanced beam pumping units using the PSO, GA, and GWO algorithms 认领 引用
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作者 Jie Wang Quan-Ying Guo +3 位作者 Cheng-Long Fu Gang Dai Cheng-Yu Xia Li-Qin Qian 《Petroleum Science》 SCIE EI CAS CSCD 2025年第3期1340-1359,共20页
The beam pumping unit(BPU)remains the most stable and reliable equipment for crude oil lifting.Despite its simple four-link mechanism,the structural design of the BPU presents a constrained single-objective optimizati... The beam pumping unit(BPU)remains the most stable and reliable equipment for crude oil lifting.Despite its simple four-link mechanism,the structural design of the BPU presents a constrained single-objective optimization problem.Currently,a comprehensive framework for the structural design and optimization of compound balanced BPUs is lacking.Therefore,this study proposes a novel structural design scheme for BPUs,aiming to meet the practical needs of designers and operators by sequentially optimizing both the dynamic characteristics and balance properties of the BPUs.A dynamic model of compound balanced BPU was established based on D'Alembert's principle.The constraints for structural dimensions were formulated based on the actual operational requirements and design experience with BPUs.To optimize the structure,three algorithms were employed:the particle swarm optimization(PSO)algorithm,the genetic algorithm(GA),and the gray wolf optimization(GWO)algorithm.Each newly generated individuals are regulated by constraints to ensure the rationality of the outcomes.Furthermore,the integration of three algorithms ensures the increased likelihood of attaining the global optimal solution.The polished rod acceleration of the optimized structure is significantly reduced,and the dynamic characteristics of the up and down strokes are essentially symmetrical.Additionally,these three algorithms are also applied to the balance optimization of BPUs based on the measured dynamometer card.The calculation results demonstrate that the GWO-based optimization method exhibits excellent robustness in terms of structural optimization by enhancing the operational smoothness of the BPU,as well as in balance optimization by achieving energy conservation.By applying the optimization scheme proposed in this paper,the CYJW7-3-23HF type of BPU was designed,achieving a maximum polished rod acceleration of±0.675 m/s2 when operating at a stroke of 6 min−1.When deployed in two wells,the root-mean-square(RMS)torque was minimized,reaching values of 7.539 kN·m and 12.921 kN·m,respectively.The proposed design method not only contributes to the personalized customization but also improves the design efficiency of compound balanced BPUs. 展开更多
关键词 Compound balanced BPU Dynamic model Structural optimization Balance optimization Constraints
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High-Order Common-Mode and Differential-Mode Reflectionless Balanced Bandpass Filters with Improved Selectivity and Out-of-Band Rejection 认领 引用
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作者 Zhang Yifan Wu Yongle +2 位作者 Wang Weimin Xu Ruoxi Cai Yuanlong 《China Communications》 SCIE EI CSCD 2025年第8期87-101,共15页
High-selectivity common-mode(CM)and differential-mode(DM)reflectionless balanced bandpass filters(BBPFs)are proposed in this article.By loading absorption networks at single/both ends of the basic ring resonator,input... High-selectivity common-mode(CM)and differential-mode(DM)reflectionless balanced bandpass filters(BBPFs)are proposed in this article.By loading absorption networks at single/both ends of the basic ring resonator,input-wo-port wideband CM and DM reflectionless performance,wideband filtering performance and all-stop CM suppression are obtained.The absorption network composed of K-sections of coupled-lines(CLs)terminated with grounded resistors can not only extend the filtering performance to high order,but also realize wideband absorption of CM noise and out-of-band DM signals.Absorptive stubs are loaded at ports to increase the design flexibility and enhance the absorption.As for the input-reflectionless type,multiple independently controlled transmission zeros(TZs)are obtained by the TZ control network to improves the selectivity and out-of-band rejection.A set of 2 GHz micro-strip BBPFs are designed and measured,which shows simultaneous CM and DM absorption performance. 展开更多
关键词 balanced filter grounded resistors highorder high-selectivity reflectionless filter ring resonator
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Effect of amino acid-balanced diet-based nutritional-psychological intervention on muscle wasting and quality of life in cirrhosis patients 认领 引用
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作者 Wei-Wei Zhuge Lin-Xiu Zheng +2 位作者 Li-Juan Xu Si-Fang Zhou Hai-Xin Yao 《World Journal of Psychiatry》 SCIE 2025年第11期231-239,共9页
BACKGROUND Patients with liver cirrhosis often experience muscle wasting that significantly affects their quality of life.AIM To investigate the effects of comprehensive nutritional and psychological interventions bas... BACKGROUND Patients with liver cirrhosis often experience muscle wasting that significantly affects their quality of life.AIM To investigate the effects of comprehensive nutritional and psychological interventions based on an amino acid-balanced diet on muscle wasting and quality of life in patients with liver cirrhosis.METHODS A retrospective study of 130 patients with liver cirrhosis(May 2023 to June 2024)was divided into control(conventional treatment,n=65)and observational groups(conventional+amino acid-balanced nutrition and psychological intervention,n=65).Anxiety(Self-Rating Anxiety Scale),depression(Self-Rating Depression Scale),lower limb muscle strength,and quality of life(Chronic Liver Disease Questionnaire)were assessed pre-intervention,and 3/6 months postintervention.RESULTS At baseline,no significant differences were observed between the two groups in terms of age,sex,etiology of cirrhosis,disease duration,disease severity,or any other measured outcome(P>0.05).At 3 months and 6 months post-intervention,the observational group exhibited significantly lower Self-Rating Anxiety Scale and Self-Rating Depression Scale scores than the control group(P<0.05),indicating reduced anxiety and depression as well as higher grip strength and increased lower limb muscle strength(P<0.05).Additionally,the observational group demonstrated superior Chronic Liver Disease Questionnaire scores across all domains, reflecting an improved quality of life (P < 0.05).CONCLUSIONAn amino acid-balanced diet and psychological intervention can effectively alleviate anxiety and depression andimprove muscle strength and quality of life in patients with cirrhosis and are worthy of clinical promotion. 展开更多
关键词 Cirrhosis Sarcopenia Amino acid balanced diet Nutritional psychological intervention Quality of life
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Prenatal diagnosis of balanced translocation from three families:Six case reports 认领 引用
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作者 Xun Kan Yu-Xin Xie +6 位作者 Lan Yao Lu-Yao Wang Yu-Xin Xia Jian-Qiao Sun Ming-Lei Bian Liang Yu Ying-Li Lu 《World Journal of Clinical Cases》 2025年第20期35-41,共7页
BACKGROUND Carriers of chromosomal balanced translocations are often physically healthy with no obvious developmental problems.However,potential chromosomal imbalance in their gametes can lead to implantation failure,... BACKGROUND Carriers of chromosomal balanced translocations are often physically healthy with no obvious developmental problems.However,potential chromosomal imbalance in their gametes can lead to implantation failure,miscarriage,or the birth of a child with a chromosomal abnormality.CASE SUMMARY We report six cases of chromosomal translocations involving three families,including the specific Robertson(Roche)translocation.Case 1:The karyotype of the proband was 46,XX,t(18;19)(q22;p12).Case 2:Interventional prenatal diagnosis at 18 weeks of gestation confirmed that the karyotype of the fetus was 46,XY,t(18;19)(q22;p12).Case 3:The karyotype of the proband was 46,XY,t(5;18)(p13;p11).Case 4:Interventional prenatal diagnosis at 14+6 weeks confirmed that the karyotype of the fetus was 46,XX,der(18)t(5;18)(p13;p11)pat.Case 5:The karyotype of the proband was 45,XY,der(14;22)(q10;q10).Case 6:Interventional prenatal diagnosis at 19+4 weeks confirmed that the karyotype of the fetus was 45,XX,rob(14;22)(q10;q10).CONCLUSION Carriers of chromosomal translocations have a high risk of adverse pregnancy outcomes,though they can still have normal offspring.This report on six cases of chromosomal translocations from three families could serve as a reference for future prenatal diagnosis of chromosomal translocations and decision-making on whether to continue the pregnancy. 展开更多
关键词 Chromosomal translocation Prenatal diagnosis Balanced translocation Robertson translocation Case report
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Handover management in beyond 5G HetNet topologies with unbalanced user distribution 认领 引用
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作者 Abdussamet Hatipoglu Mehmet Akif Yazici +2 位作者 Mehmet Basaran Mine Ardanuc Lutfiye Durak-Ata 《Digital Communications and Networks》 SCIE EI CSCD 2025年第2期465-472,共8页
The increase in user mobility and density in modern cellular networks increases the risk of overloading certain base stations in popular locations such as shopping malls or stadiums,which can result in connection loss... The increase in user mobility and density in modern cellular networks increases the risk of overloading certain base stations in popular locations such as shopping malls or stadiums,which can result in connection loss for some users.To combat this,the traffic load of base stations should be kept as balanced as possible.In this paper,we propose an efficient load balancing-aware handover algorithm for highly dynamic beyond 5G heterogeneous networks by assigning mobile users to base stations with lighter loads when a handover is performed.The proposed algorithm is evaluated in a scenario with users having different levels of mobility,such as pedestrians and vehicles,and is shown to outperform the conventional handover mechanism,as well as another algorithm from the literature.As a secondary benefit,the overall energy consumption in the network is shown to be reduced with the proposed algorithm. 展开更多
关键词 Beyond 5G Handover management Load balancing Markov chain Poisson point process Poisson hole process Ultra-dense heterogeneous network
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Development Imbalances in China:An Integrated Analysis with the Tsinghua China Balanced Development Index 认领 引用
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作者 Xu Xianchun Zheng Zhengxi Zhang Zhongwen 《中国经济学人（中英文）》 2020年第3期2-17,共16页
The principal contradiction facing the Chinese society has evolved to be that between imbalanced and inadequate development and the people’s ever-growing needs for a better life.Given China’s vision for achieving mo... The principal contradiction facing the Chinese society has evolved to be that between imbalanced and inadequate development and the people’s ever-growing needs for a better life.Given China’s vision for achieving moderate prosperity,it is relevant to conduct theoretical and empirical studies on the nation’s development imbalances.As a quantitative index,the Tsinghua China Balanced Development Index measures the extent to which development is uneven and insuf ficient across regions,re flecting the progress and shortfalls in China’s efforts to promote balanced development.Our findings provide implications for how policymakers may help people’s expectations for a better life materialize by spurring balanced economic,social,environmental and livelihood development across regions. 展开更多
关键词 Balanced Development Index principal social contradictions needs for a better life imbalanced and inadequate development
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Balanced Subeulerian Signed Graphs and Signed Line Graphs 认领 引用
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作者 Juan LIU Hong YANG +1 位作者 Xindong ZHANG Hongjian LAI 《Journal of Mathematical Research with Applications》 CSCD 2024年第1期7-17,共11页
A signed graph S=(Su,σ)has an underlying graph Suand a functionσ:E(Su)-→{+,-}.Let E-(S)denote the set of negative edges of S.Then S is eulerian signed graph(or subeulerian signed graph,or balanced eulerian... A signed graph S=(Su,σ)has an underlying graph Suand a functionσ:E(Su)-→{+,-}.Let E-(S)denote the set of negative edges of S.Then S is eulerian signed graph(or subeulerian signed graph,or balanced eulerian signed graph,respectively)if Suis eulerian(or subeulerian,or eulerian and|E-(S)|is even,respectively).We say that S is balanced subeulerian signed graph if there exists a balanced eulerian signed graph S′such that S′is spanned by S.The signed line graph L(S)of a signed graph S is a signed graph with the vertices of L(S)being the edges of S,where an edge eiej is in L(S)if and only if the edges eiand ejof S have a vertex in common in S such that an edge eiej in L(S)is negative if and only if both edges ei and ej are negative in S.In this paper,two families of signed graphs S and S′are identified,which are applied to characterize balanced subeulerian signed graphs and balanced subeulerian signed line graphs.In particular,it is proved that a signed graph S is balanced subeulerian if and only if S∈S,and that a signed line graph of signed graph S is balanced subeulerian if and only if S∈S′. 展开更多
关键词 signed graph signed line graph balanced eulerian balanced subeulerian
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A dynamic load-balanced scheme based on flow classification for software-defined data center 认领 引用
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作者 YU Yang JING Zhengjun +1 位作者 CHEN Qianmin WANG Xiumei 《High Technology Letters》 EI CAS 2025年第4期338-346,共9页
Aiming at the problems such as low throughput and unbalanced load of data center network caused by traditional multipath routing strategy,a dynamic load balancing strategy for flow classification oriented to Fat-Tree ... Aiming at the problems such as low throughput and unbalanced load of data center network caused by traditional multipath routing strategy,a dynamic load balancing strategy for flow classification oriented to Fat-Tree topology based on the software defined network(SDN)architecture is proposed,named DLB-FC.Multi-index evaluation methods such as link state information and network traffic characteristics are considered.DLB-FC mechanism can dynamically adjust the flow classification threshold to differentiate between large and small flows.The scheme selects different forwarding paths to meet the transmission performance requirements of different flow characteristics.On this basis,an SDN simulation platform is built for performance testing.The simulation results show that DLB-FC algorithm can dynamically distinguish large flows from small flows and achieve load balancing effectively.Compared with equal-cost multi-path(ECMP),global first fit(GFF)and minmum total delay load routing(MTDLR)algorithms,DLB-FC scheme improves the network throughput and link utilization of the data center network effectively.The transmission delay is also reduced with better load balance. 展开更多
关键词 data center software defined network load balance multi-index evaluation Fat-Tree
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