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Integrating GPT into the Journalism and Communication Industries:The Technological Logic,Ecosystem Reconstruction,and Ethical Chal enges
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作者 Chen Yuxia 《Contemporary Social Sciences》 2024年第3期106-119,共14页
Generative AI,represented by GPT(Generative Pre-trained Transformer),is now leading the technological revolution and is reconstructing the journalism and communication industries'ecosystems because of its powerful... Generative AI,represented by GPT(Generative Pre-trained Transformer),is now leading the technological revolution and is reconstructing the journalism and communication industries'ecosystems because of its powerful generative capacity and diverse range of outputs.While GPT is busy revolutionizing and innovating the production of news content,working patterns,and operation modes,it has also given rise to ethical concerns in regard to news authenticity,data security,humanistic values,and other related aspects.Therefore,it is imperative to initiate strategies and approaches,such as establishing a mechanism for verifying information authenticity,enhancing data security and privacy regulations,and instituting an ethical supervision and governance framework for AI,in order to facilitate the systematic advancement of AI-based news production while reinstating public trust. 展开更多
关键词 GPT model journalism and communication technological revolution ecosystem reconstruction ethical concerns
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Optimal synthesis of heat-integrated distillation configurations using the two-column superstructure 被引量:1
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作者 Xiaodong Zhang Lu Jin Jinsheng Sun 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2024年第2期238-249,共12页
In the realm of the synthesis of heat-integrated distillation configurations,the conventional approach for exploring more heat integration possibilities typically entails the splitting of a single column into a twocol... In the realm of the synthesis of heat-integrated distillation configurations,the conventional approach for exploring more heat integration possibilities typically entails the splitting of a single column into a twocolumn configuration.However,this approach frequently necessitates tedious enumeration procedures,resulting in a considerable computational burden.To surmount this formidable challenge,the present study introduces an innovative remedy:The proposition of a superstructure that encompasses both single-column and multiple two-column configurations.Additionally,a simultaneous optimization algorithm is applied to optimize both the process parameters and heat integration structures of the twocolumn configurations.The effectiveness of this approach is demonstrated through a case study focusing on industrial organosilicon separation.The results underscore that the superstructure methodology not only substantially mitigates computational time compared to exhaustive enumeration but also furnishes solutions that exhibit comparable performance. 展开更多
关键词 SUPERSTRUCTURE Process synthesis Heat integration Simulation-based optimization Industrial organosilicon separation
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High-chromium vanadium-titanium magnetite all-pellet integrated burden optimization and softening-melting behavior based on flux pellets 被引量:1
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作者 Bojian Chen Tao Jiang +4 位作者 Jing Wen Guangdong Yang Tangxia Yu Fengxiang Zhu Peng Hu 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第3期498-507,共10页
High-chromium vanadium-titanium magnetite(HVTM)is a crucial polymetallic-associated resource to be developed.The allpellet operation is a blast furnace trend that aims to reduce carbon dioxide emissions in the future.... High-chromium vanadium-titanium magnetite(HVTM)is a crucial polymetallic-associated resource to be developed.The allpellet operation is a blast furnace trend that aims to reduce carbon dioxide emissions in the future.By referencing the production data of vanadium-titanium magnetite blast furnaces,this study explored the softening-melting behavior of high-chromium vanadium-titanium magnetite and obtained the optimal integrated burden based on flux pellets.The results show that the burden with a composition of 70wt%flux pellets and 30wt%acid pellets exhibits the best softening-melting properties.In comparison to that of the single burden,the softening-melting characteristic temperature of this burden composition was higher.The melting interval first increased from 307 to 362℃and then decreased to 282℃.The maximum pressure drop(ΔPmax)decreased from 26.76 to 19.01 kPa.The permeability index(S)dropped from 4643.5 to 2446.8 kPa·℃.The softening-melting properties of the integrated burden were apparently improved.The acid pellets played a role in withstanding load during the softening process.The flux pellets in the integrated burden exhibited a higher slag melting point,which increased the melting temperature during the melting process.The slag homogeneity and the TiC produced by over-reduction led to the gas permeability deterioration of the single burden.The segregation of the flux and acid pellets in the HVTM proportion and basicity mainly led to the better softening-melting properties of the integrated burden. 展开更多
关键词 high-chromium vanadium-titanium magnetite softening-melting properties all pellets integrated burden flux pellets
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3D‑Printed Carbon‑Based Conformal Electromagnetic Interference Shielding Module for Integrated Electronics 被引量:1
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作者 Shaohong Shi Yuheng Jiang +5 位作者 Hao Ren Siwen Deng Jianping Sun Fangchao Cheng Jingjing Jing Yinghong Chen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第5期87-101,共15页
Electromagnetic interference shielding(EMI SE)modules are the core com-ponent of modern electronics.However,the tra-ditional metal-based SE modules always take up indispensable three-dimensional space inside electroni... Electromagnetic interference shielding(EMI SE)modules are the core com-ponent of modern electronics.However,the tra-ditional metal-based SE modules always take up indispensable three-dimensional space inside electronics,posing a major obstacle to the integra-tion of electronics.The innovation of integrating 3D-printed conformal shielding(c-SE)modules with packaging materials onto core electronics offers infinite possibilities to satisfy ideal SE func-tion without occupying additional space.Herein,the 3D printable carbon-based inks with various proportions of graphene and carbon nanotube nanoparticles are well-formulated by manipulating their rheological peculiarity.Accordingly,the free-constructed architectures with arbitrarily-customized structure and multifunctionality are created via 3D printing.In particular,the SE performance of 3D-printed frame is up to 61.4 dB,simultaneously accompanied with an ultralight architecture of 0.076 g cm^(-3) and a superhigh specific shielding of 802.4 dB cm3 g^(-1).Moreover,as a proof-of-concept,the 3D-printed c-SE module is in situ integrated into core electronics,successfully replacing the traditional metal-based module to afford multiple functions for electromagnetic compatibility and thermal dissipa-tion.Thus,this scientific innovation completely makes up the blank for assembling carbon-based c-SE modules and sheds a brilliant light on developing the next generation of high-performance shielding materials with arbitrarily-customized structure for integrated electronics. 展开更多
关键词 3D printing Carbon-based nanoparticles Conformal electromagnetic interference shielding integrated electronics
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Journal of Integrative Agriculture(JIA) Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第3期I0002-I0002,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAAsS).JIAis a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA Editorial Board consists of 289 well-respected scholars of agricultural scientific fields.CAAS President,Academician WU Kong-ming is the Chairman of the Board,and CAAS Vice President,Academician CHEN Hua-lan is the Editor-in-Chief.JIA has been published by Elsevier B.V.since 2006 and is a leading academic journal in agricultural sciences in China.As released by JCR,the latest IF of the journal is 4.8. 展开更多
关键词 ACADEMICIAN journal JIA
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Journal of Integrative Agriculture (JIA) Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第6期I0001-I0001,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAAss).JIA is a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA Editorial Board consists of 289 well-respected scholars of agricultural scientific fields.CAAs President,Academician WU Kong-ming is the Chairman of the Board,and CAAS Vice President,Academician CHEN Hua-lan is the Editor-in-Chief.JIA has been published by Elsevier B.V.since 2006 and is a leading academic journal in agricultural sciences in China.As released by JCR,the latest IF of the journal is 4.8. 展开更多
关键词 ACADEMICIAN journal JIA
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Journal of Integrative Agriculture (JIA) Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第5期I0001-I0001,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAAsS).JIA is a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA'Editorial Board consists of 289 well-respected scholars of agricultural scientific fields.CAAs President,Academician WU Kong-ming is the Chairman of the Board,and CAAS Vice President,Academician CHEN Hua-lan is the Editor-in-Chief.JIA has been published by Elsevier B.V.since 2006 and is a leading academic journal in agricultural sciences in China.As released by JCR,the latest IF of the journal is 4.8. 展开更多
关键词 ACADEMICIAN journal JIA
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Journal of Integrative Agriculture(JIA)Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第10期I0001-I0001,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(AsC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAASS).JIAis a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA Editorial Board consists of 289 well-respected scholars of agricultural scientific fields. 展开更多
关键词 AGRICULTURAL journal JIA
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Journal of Integrative Agriculture Instruction to Authors
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《Journal of Integrative Agriculture》 SCIE CSCD 2024年第1期I0001-I0001,F0003,共2页
Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(ASC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Ag... Description Journal of Integrative Agriculture(JIA),formerly Agricultural Sciences in China(ASC),founded in 2002,is sponsored by Chinese Academy of Agricultural Sciences(CAAS),co-sponsored by Chinese Association of Agricultural Science Societies(CAASS).JIA is a peer-reviewed and multi-disciplinary international journal and published monthly in English.JIA Editorial Board consists of 289 well-respected scholars of agricultural scientific fields. 展开更多
关键词 AGRICULTURAL journal AGRICULTURE
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Development and Validation of Integrated Nutrient Management Practices of Industrial Processing Varieties: Asterix and Courage in Bangladesh
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作者 Azizul Hoque Md. Maniruzzaman Sikder Abul Khair 《Agricultural Sciences》 2024年第7期780-799,共20页
An experiment was meticulously conducted at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh, during the 2011-2012 potato growing season to develop integrat... An experiment was meticulously conducted at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh, during the 2011-2012 potato growing season to develop integrated crop management practices for the potato seed production of industrial processing varieties Asterix and Courage. Significantly, higher growth and yield parameters were found in the BADC-recommended practice. Later, another experiment was conducted to validate the BADC practice during the 2013-2014 potato growing season in two locations in Bangladesh. Results showed that the production of tuber per hill, tuber weight per hill as well as gross tuber yield per plot, higher proportion of storable seed tubers, and more quality seed potatoes (A-grade and B-grade) seed tubers were found significantly higher in the “BADC developed practice” compared to other treatments. Viral diseases (PLRV and PVY) prevalence was lower in “BADC developed practice”. Moreover, “BADC developed practice” contributed more economic yield by minimizing input cost compared to “Munshiganj advanced farmers’ practice”. Therefore, the “BADC developed practice” was found “superior” regarding yield, quality, and profitability in seed potato production of industrial varieties—Asterix and Courage in Bangladesh. 展开更多
关键词 integrated NUTRIENT Industrial Processing POTATOES
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Impacts of Integrated Multi-Trophic Aquaculture on Phytoplankton in Sanggou Bay
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作者 HAN Jichang LIU Xing +5 位作者 PAN Kehou LIU Jiaojiao SUN Yan JIN Guiyong LI Yun LI Yuhang 《Journal of Ocean University of China》 SCIE CAS CSCD 2024年第3期835-843,共9页
Integrated multi-trophic aquaculture(IMTA)has been considered as an ecofriendly culture system providing a potential solution to environmental risks caused by intensive monoculture system.However,the impact of IMTA on... Integrated multi-trophic aquaculture(IMTA)has been considered as an ecofriendly culture system providing a potential solution to environmental risks caused by intensive monoculture system.However,the impact of IMTA on phytoplankton remains unclear.In this study,the spatial and temporal variations of phytoplankton in Sanggou Bay were investigated seasonally based on 21 sampling sites covering three cultivation zones(bivalve zone,IMTA zone,and kelp zone)and one control zone(without aquatic cultivation).In total,128 phytoplankton species,with diatoms and dinoflagellates as the dominant groups,were obtained across the whole year,and the mean Shannon diversity index(H')and species richness(SR)were determined as 1.39 and 9.39,respectively.The maximum chlorophyll a(Chl-a)(6.32μg L^(-1))and plankton diversity(H'of 1.97)occurred in summer and autumn,respectively.Compared to other zones,the bivalve zone displayed significantly higher Chl-a and lower H'in majority of time.Pairwise PERMANOVA analysis indicated that the phytoplankton assemblage in the bivalve zone was significantly different with the control and kelp zones,while the IMTA zone maintained close to other three zones.Based on generalized additive models,temperature,NO_(2)^(-)-N,N/P ratio,SiO_(3)^(2-)-Si,and salinity were determined as the key factors underlying Chl-a and phytoplankton diversity.Addi-tionally,the results of redundancy analysis further indicated that the phytoplankton assemblage in the bivalve zone is positively re-lated with nutrients such as NO_(3)^(-)-N and NH_(4)^(+)-N as well as water depth,while the phytoplankton assemblages in the kelp,control,and IMTA zones are associated with NO_(2)^(-)-N,SiO_(3)^(2-)-Si,and salinity.Taken all observations into consideration together,it can be inferred that IMTA can effectively reduce Chl-a level compared to bivalve monoculture by reducing the nutrients.However,the SR,H’,and species composition of phytoplankton are primarily determined by local environment factors such as temperature,water depth,salinity and SiO_(3)^(2-)-Si. 展开更多
关键词 PHYTOPLANKTON DIVERSITY Sanggou Bay integrated multi-trophic aquaculture
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Carbon nanotube integrated circuit technology:purification,assembly and integration
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作者 Jianlei Cui Fengqi Wei Xuesong Mei 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2024年第3期120-138,共19页
As the manufacturing process of silicon-based integrated circuits(ICs)approaches its physical limit,the quantum effect of silicon-based field-effect transistors(FETs)has become increasingly evident.And the burgeoning ... As the manufacturing process of silicon-based integrated circuits(ICs)approaches its physical limit,the quantum effect of silicon-based field-effect transistors(FETs)has become increasingly evident.And the burgeoning carbon-based semiconductor technology has become one of the most disruptive technologies in the post-Moore era.As one-dimensional nanomaterials,carbon nanotubes(CNTs)are far superior to silicon at the same technology nodes of FETs because of their excellent electrical transport and scaling properties,rendering them the most competitive material in the next-generation ICs technology.However,certain challenges impede the industrialization of CNTs,particularly in terms of material preparation,which significantly hinders the development of CNT-based ICs.Focusing on CNT-based ICs technology,this review summarizes its main technical status,development trends,existing challenges,and future development directions. 展开更多
关键词 carbon nanotubes integrated circuits field-effect transistors post-Moore
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Command filtered integrated estimation guidance and control for strapdown missiles with circular field of view
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作者 Wei Wang Jiaqi Liu +2 位作者 Shiyao Lin Baokui Geng Zhongjiao Shi 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第5期211-221,共11页
In this paper,an integrated estimation guidance and control(IEGC)system is designed based on the command filtered backstepping approach for circular field-of-view(FOV)strapdown missiles.The threedimensional integrated... In this paper,an integrated estimation guidance and control(IEGC)system is designed based on the command filtered backstepping approach for circular field-of-view(FOV)strapdown missiles.The threedimensional integrated estimation guidance and control nonlinear model with limited actuator deflection angle is established considering the seeker's FOV constraint.The boundary time-varying integral barrier Lyapunov function(IBLF)is employed in backstepping design to constrain the body line-of-sight(BLOS)in IEGC system to fit a circular FOV.Then,the nonlinear adaptive controller is designed to estimate the changing aerodynamic parameters.The generalized extended state observer(GESO)is designed to estimate the acceleration of the maneuvering targets and the unmatched time-varying disturbances for improving tracking accuracy.Furthermore,the command filters are used to solve the"differential expansion"problem during the backstepping design.The Lyapunov theory is used to prove the stability of the overall closed-loop IEGC system.Finally,the simulation results validate the integrated system's effectiveness,achieving high accuracy strikes against maneuvering targets. 展开更多
关键词 integrated estimation guidance and control Circular field-of-view Time-varying integral barrier Lyapunov function Command filtered backstepping control Nonlinear adaptive control Extended state observer
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Integrated analysis of plasma rotation effect on HL-3 hybrid scenario
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作者 薛淼 郑国尧 +5 位作者 薛雷 李佳鲜 王硕 杜海龙 朱毅仁 周月 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第8期329-336,共8页
The hybrid scenario,which has good confinement and moderate MHD instabilities,is a proposed operation scenario for international thermonuclear experimental reactor(ITER).In this work,the effect of plasma rotation on t... The hybrid scenario,which has good confinement and moderate MHD instabilities,is a proposed operation scenario for international thermonuclear experimental reactor(ITER).In this work,the effect of plasma rotation on the HL-3 hybrid scenario is analyzed with the integrated modeling framework OMFIT.The results show that toroidal rotation has no obvious effect on confinement with a high line averaged density of n_(bar)~(7)×10^(19)m^(-3).In this case,the ion temperature only changes from 4.7 keV to 4.4 keV with the rotation decreasing from 10^(5) rad/s to 10^(3) rad/s,which means that the turbulent heat transport is not dominant.While in the scenarios characterized by lower densities,such as n_(bar)~4×10^(19)m^(-3),turbulent transport becomes dominant in determining heat transport.The ion temperature rises from 3.8 keV to 6.1 keV in the core as the rotation velocity increases from 10^(3) rad/s to 10^(5) rad/s.Despite the ion temperature rising,the rotation velocity does not obviously affect electron temperature or density.Additionally,it is noteworthy that the variation in rotation velocity does not significantly affect the global confinement of plasma in scenarios with low density or with high density. 展开更多
关键词 HL-3 hybrid scenario toroidal rotation integrated modeling
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Journal of Integrative Nursing Invitation
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《Journal of Integrative Nursing》 2024年第3期F0002-F0002,共1页
Dear,Journal of Integrative Nursing(JIN,p-ISSN 2666-9854,e-ISSN 2663-4481),founded in March 2019,is an international peer reviewed,open-access,quarterly academic journal.JIN is co-sponsored by Association of Integrati... Dear,Journal of Integrative Nursing(JIN,p-ISSN 2666-9854,e-ISSN 2663-4481),founded in March 2019,is an international peer reviewed,open-access,quarterly academic journal.JIN is co-sponsored by Association of Integrative Nursing and Beijing Office of Traditional Chinese Medicine Nursing Competence Improvement Project,and published by Wolters Kluwer Medknow Publications. 展开更多
关键词 NURSING MEDICINE journal
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Journal of Integrative Nursing Invitation
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《Journal of Integrative Nursing》 2024年第2期F0002-F0002,共1页
Dear,Journal of Integrative Nursing(JIN,p-ISSN 2666-9854,e-ISSN 2663-4481),founded in March 2019,is an international peer reviewed,open-access,quarterly academic journal.JIN is co-sponsored by Association of Integrati... Dear,Journal of Integrative Nursing(JIN,p-ISSN 2666-9854,e-ISSN 2663-4481),founded in March 2019,is an international peer reviewed,open-access,quarterly academic journal.JIN is co-sponsored by Association of Integrative Nursing and Beijing Office of Traditional Chinese Medicine Nursing Competence Improvement Project,and published by Wolters Kluwer Medknow Publications. 展开更多
关键词 NURSING MEDICINE journal
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Journal of Integrative Nursing
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《Journal of Integrative Nursing》 2024年第1期F0002-F0002,共1页
Invitation Dear,Journal of Integrative Nursing(JIN,p-ISSN 2666-9854,e-ISSN 2663-4481),founded in March 2019,is an international peer reviewed,open-access,quarterly academic journal.JIN is co-sponsored by Association o... Invitation Dear,Journal of Integrative Nursing(JIN,p-ISSN 2666-9854,e-ISSN 2663-4481),founded in March 2019,is an international peer reviewed,open-access,quarterly academic journal.JIN is co-sponsored by Association of Integrative Nursing and Beijing Office of Traditional Chinese Medicine Nursing Competence Improvement Project,and published by Wolters Kluwer Medknow Publications. 展开更多
关键词 NURSING MEDICINE journal
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Design of compact integrated diamond nitrogen-vacancy center quantum probe
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作者 夏圣开 卢文韬 +10 位作者 赵旭彤 薛雅文 许增博 葛仕宇 汪洋 虞林嫣 卞雨辰 安思瀚 杨博 向建军 杜关祥 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第5期409-415,共7页
An integrated quantum probe for magnetic field imaging is proposed,where the nitrogen–vacancy(NV)center fixed at the fiber tip is located on the periphery of flexible ring resonator.Using flexible polyimide(PI)as the... An integrated quantum probe for magnetic field imaging is proposed,where the nitrogen–vacancy(NV)center fixed at the fiber tip is located on the periphery of flexible ring resonator.Using flexible polyimide(PI)as the substrate medium,we design a circular microstrip antenna,which can achieve a bandwidth of 140 MHz at Zeeman splitting frequency of 2.87 GHz,specifically suitable for NV center experiments.Subsequently,this antenna is seamlessly fixed at a three-dimensional-printed cylindrical support,allowing the optical fiber tip to extend out of a dedicated aperture.To mitigate errors originating from processing,precise tuning within a narrow range can be achieved by adjusting the conformal amplitude.Finally,we image the microwave magnetic field around the integrated probe with high resolution,and determine the suitable area for placing the fiber tip(SAP). 展开更多
关键词 nitrogen-vacancy center conformal antenna integrated probe magnetic field imaging
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A Hybrid Integrated and Low-Cost Multi-Chip Broadband Doherty Power Amplifier Module for 5G Massive MIMO Application
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作者 Fei Huang Guansheng Lv +2 位作者 Huibo Wu Wenhua Chen Zhenghe Feng 《Engineering》 SCIE EI CAS CSCD 2024年第7期223-232,共10页
In this paper,a hybrid integrated broadband Doherty power amplifier(DPA)based on a multi-chip module(MCM),whose active devices are fabricated using the gallium nitride(GaN)process and whose passive circuits are fabric... In this paper,a hybrid integrated broadband Doherty power amplifier(DPA)based on a multi-chip module(MCM),whose active devices are fabricated using the gallium nitride(GaN)process and whose passive circuits are fabricated using the gallium arsenide(GaAs)integrated passive device(IPD)process,is proposed for 5G massive multiple-input multiple-output(MIMO)application.An inverted DPA structure with a low-Q output network is proposed to achieve better bandwidth performance,and a single-driver architecture is adopted for a chip with high gain and small area.The proposed DPA has a bandwidth of 4.4-5.0 GHz that can achieve a saturation of more than 45.0 dBm.The gain compression from 37 dBm to saturation power is less than 4 dB,and the average power-added efficiency(PAE)is 36.3%with an 8.5 dB peak-to-average power ratio(PAPR)in 4.5-5.0 GHz.The measured adjacent channel power ratio(ACPR)is better than50 dBc after digital predistortion(DPD),exhibiting satisfactory linearity. 展开更多
关键词 5G Doherty power amplifier Multi-input multi-output Multi-chip modules Hybrid integrated
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Obstacles to the Integrated Care of Children Aged 6 to 59 Months Suffering from Acute and Severe Malnutrition at the Chu-Me and HATC of N’Djamena/Chad
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作者 Madjiadoumbeye Romain Imar Djibrine Soudy 《Open Journal of Nursing》 2024年第4期127-138,共12页
Introduction: the problem of Severe Acute Malnutrition (SAM) and its consequences concern and challenge all social actors worldwide. The objective of the study was to identify the real obstacles that actors face in th... Introduction: the problem of Severe Acute Malnutrition (SAM) and its consequences concern and challenge all social actors worldwide. The objective of the study was to identify the real obstacles that actors face in the integrated management of children aged 6 - 59 months suffering from SAM at the University Hospital of Mother and Child (CHUME) and the Chad-China Friendship Hospital (HATC) of N’Djamena. Methodology: this is a cross-sectional descriptive and interpretative study conducted from January to October 2023 at the CHUME and HATC of N’Djamena. It is based on questionnaires and direct observation of two hundred and thirty-six (236) parents or guardians of malnourished children admitted to these health facilities. All 236 agreed to participate freely in this study. Results: it appears from this study that the obstacles to the integrated management of malnourished children were: poor care-care relationship (26.7%) permanent product breaks (22.9%), the direct costs of services ranged from 30,000 to 60,000 FCFA (41.53%), drugs used for the treatment of patients came from the street (66.10%), malaria and anemia occupy an important place (27.5%), 57.2% respondents had monthly income below 60,000 CFAF. Conclusion: the present study carried out has identified the real bottlenecks to the integrated management of children suffering from SAM in the therapeutic nutritional units of the city of N’Djamena. . 展开更多
关键词 integrated Management Child 6 - 59 Months SAM
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