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Impact of technology advances on China's CO_2 emission reduction

Chinese Science Bulletin 2010年第19期55卷 1983-1992页

作者： ZHENG YouFei LI HaiTao WU RongJun WANG lianxi The Key Laboratory of Meteorological Disaster of Ministry of Education Nanjing University oflnformation Science &Technology Nanjing 210044 China The College of Environmental Science and Engineering Nanjing University oflnformation Science & Technology Nanjing 210044 China

Global warming tends to be the major characteristics of the dramatic global climate *** deal with these changes,the impact of reducing greenhouse gas(GHG) emission on Chinese future economic and social development has to be *** this paper,a Regional Integrated model of Climate and the Economy(RICE),which is well known and accepted widely,has been used for Chinese economic assessment of climate change after introduction,assimilation and *** on a sensitivity analysis of technical parameters in the RICE model and constrained targets proposed for energy saving and emissions reduction technological advance programs of China from 2000 to 2050,the economic impact of the programs is *** results indicate that when technology advances,Chinese CO2 emission,climate loss,and the growth rate of atmospheric CO2 concentration and temperature will all *** is assumed that in 2010,the CO2 emission is 20% lower than in 2005,CO2 emission in 2050 would only double the level in 2000,the accumulative CO2 emission would be decreased by 12.4 GtC,and the atmospheric CO2 concentration and temperature in 2050 would reduce by 35 GtC and 0.04°C respectively from 2000 to *** accumulative climate loss from 2000 to 2050 will drop down by 4.6 billion dollar,which only accounts for 6% of the global total ***,the economic benefit the developed countries will obtain is 10 times that for China under such a technological advance *** decrease of the CO2 emission control rate is 1% in cooperation policy while 4.6% in non-cooperation policy,which would relieve China's burden in the control of CO2 total emission and thereby benefit China in participation of the international cooperation for CO2 emission reduction.

关键词：二氧化碳排放量减排技术中国大气二氧化碳浓度全球气候变化经济评估排放总量控制灵敏度分析

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A facile method for preparing thiocyanato-functionalized porous silica nanospheres

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Particuology 2016年第1期14卷 183-190页

作者： Jie Li lianxi Chen Xi Li Chaocan Zhang Zhenhui Liu School of Chemistry Chemical Engineering and Life Science Wuhan University of Technology Wuhan 430070 China School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China

In this study, we present a facile method to prepare thiocyanato-functionalized porous silica nanospheres. Thiocyanato functionalized silica shells were coated on positively charged cetyltrimethylammonium bromide （CTAB） micelles via hydrolysis and condensation of （3-thiocyanatopropyl）triethoxysilane （TCPTES）, the CTAB cores were removed subsequently to form thiocyanato-functionalized porous sil- ica nanospheres. We demonstrate that the contents of the thiocyanato groups within the functionalized porous silica nanosphere frameworks gradually diminished as a function ofhydrothermal treatment time at 100~C until complete removal, confirmed by TGA and FTIR spectra. The data indicate that extended operation at relatively elevated temperatures may lead to the decomposition of the thiocyanato functional groups. In addition, at a lower CTAB concentration （0.0009 M）, non-porous thiocyanato functionalized sil- ica nanospheres were formed. However, increasing the CrAB concentration to 0.01 M resulted in porous nanospheres inferring that a CTAB concentration threshold is needed to form thiocyanato-functionalized porous silica nanospheres.

关键词： Thiocyanato Functionalization Silica nanospheres Porous Micellar template

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Hsa-miR-214-3p inhibits breast cancer cell growth and improves the tumor immune microenvironment by downregulating B7H3

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Oncology Research 2025年第1期33卷 103-121页

作者： YAN LU KANG WANG YUANHONG PENG MENG CHEN LIN ZHONG LUJI HUANG FU CHENG XINDAN sheng XIN YANG MANZHAO OUYANG GEORGE A.CALIN ZHIWEI HE China-America Cancer Research Institute Guangdong Medical UniversityDongguan523808China GCP Center Shunde HospitalSouthern Medical University(The First People’s Hospital of Shunde Foshan)Shunde528300China Department of Gastrointestinal Surgery Shunde HospitalSouthern Medical University(The First People’s Hospital of Shunde Foshan)Shunde528300China The Second School of Clinical Medicine Southern Medical UniversityGuangzhou510080China Department of Translational Molecular Pathology The University of Texas MD Anderson Cancer CenterHoustonTX 77030USA Department of Oncology Shunde HospitalSouthern Medical University(The First People’s Hospital of Shunde Foshan)Shunde528300China

Background:Immune checkpoint inhibitors play an important role in the treatment of solid tumors,but the currently used immune checkpoint inhibitors targeting programmed cell death-1(PD-1),programmed cell death ligand-1(PD-L1),and cytotoxic T-lymphocyte antigen-4(CTLA-4)show limited clinical efficacy in many breast cancers.B7H3 has been widely reported as an immunosuppressive molecule,but its immunological function in breast cancer patients remains ***:We analyzed the expression of B7H3 in breast cancer samples using data from the Cancer Genome Atlas Program(TCGA)and the Gene Expression Omnibus(GEO)*** were selected using the TarBase,miRTarBase,and miRBase *** regulatory role of the microRNA hsa-miR-214-3p on B7H3 was investigated through dual-luciferase reporter assays,which identified the specific action sites of *** expression levels of B7H3 and hsa-miR-214-3p in human breast cancer tissues and adjacent normal tissues were quantified using Western blotting and quantitative PCR(qPCR).In vitro experiments were performed to observe the effects of modulating the expression of B7H3 or hsa-miR-214-3p on breast cancer cell proliferation and ***,the regulatory impact of hsa-miR-214-3p on B7H3 was ***-linked immunosorbent assays(ELISA)and flow cytometry were employed to assess the effects of co-cultured breast cancer cells and normal human peripheral blood mononuclear cells(PBMCs)on immune cells and associated ***:In breast cancer tissues,the expression level of B7H3 is inversely correlated with that of hsa-miR-214-3p,as well as with the regulatory effects on breast cancercell ***-miR-214-3p was found to inhibit breast cancer cell growth by downregulating ***,our research identified,for the first time,two binding sites for hsa-miR-214-3p on the 3’UTR of B7H3,both of which exert similar effects ***-culture experiments revealed that hsamiR-214-3p

关键词： Breast cancer B7H3 Hsa-miR-214-3p Immunotherapy

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Positive effect of Mo on mechanical properties of a Ni-42W-10Co-x Mo medium heavy alloy

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China Foundry 2025年

作者： Guo-xin Cao Jian-xin Dong Yong-sheng He He Jiang Fang Hao Zhi-hua Nie Teng-fei Ma Bao-quan Fu School of Materials Science and Engineering University of Science and Technology Beijing Xi'an Superalloy Technology Co. Ltd. School of Materials Science and Engineering Beijing Institute of Technology Key Laboratory of Air-driven Equipment Technology of Zhejiang Province Quzhou University

In this study,a novel Ni-W-Co-Mo medium heavy alloy (MHA) was designed to improve its mechanical strength via Mo *** the Ni-42W-10Co-xM o alloy series,where x represents the weight percent of Mo and varies between 0,1,2,5,and 10,the microstructure transitions from a dendritic structure to a hypoeutectic structure as the Mo content increases from 0 to 5wt.%.Moreover,as the Mo content increases from 0to 10wt.%,the distribution of theμ-phase shifts from being individually dispersed to forming aggregates,and its volume fraction rises from 0.5%to 7.9%.Notably,theμ-phase evolves into an eutectic microstructure,which helps in minimizing the segregation of *** change is accompanied by a substantial enhancement in mechanical properties;specifically,the compressive yield strength at room temperature increases from 350 MPa to 646 MPa,indicating a significant 85%***,the microhardness increases from 230 HV to 304 *** dynamics simulations further reveal that the strengthening mechanism of Ni-42W-10Co-xM o alloys is Mo-induced solid solution strengthening and precipitation strengthening.

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A stretchable, ionic conductive, and adhesive patch electrode with ultra-low on-skin impedance for electrophysiological signal recording

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Science China(Information Sciences) 2025年

作者： Yang LI Yuzhe GU sheng QIAN Yuncong PANG Aoxi YU Shuwen ZHENG Wenjie XIA Yuan LIAO Baoguang LIU Shujuan LIU Qiang ZHAO College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology) Nanjing University of Posts & Telecommunications (NJUPT) State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications (NJUPT)

Flexible electrodes have significant potential in fields such as healthcare and neuroscience, as they enable comprehensive recording and analysis of human electrical signals, providing deeper insights into physiological conditions and the state of internal organs and tissues [1, 2]. However, commercial Ag/AgCl wet electrodes face issues such as dehydration,poor comfort, and insufficient mechanical strength, while other types of electrodes, like dry and semi-dry electrodes,also have their own limitations, including the higher contact impedance. In contrast, ionically conductive electrodes offer potential advantages such as transparency, stability, and low impedance, making them a promising alternative to existing electrically conductive electrodes [3]. Acrylic acid (AA)and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) are commonly used in the synthesis of ionic gels, as they ionize in water to produce a large number of ions, helping to maintain moisture balance and reduce impedance caused by dehydration [4]. However, the presence of freely moving ions in the gel network can interfere with conductivity, highlighting the need to introduce new conductive networks to enhance performance [5].

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SHA-less architecture with enhanced accuracy for pipelined ADC

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Journal of Semiconductors 2012年第2期33卷 117-121页

作者： Zhao Lei Yang Yintang Zhu Zhangming Liu lianxi School of Microelectronics Xidian UniversityXi’an 710071China

A new design technique for merging the front-end sample-and-hold amplifier（SHA） into the first multiplying digital-to-analog converter（MDAC） is *** reducing the aperture error in the first stage of the pipelined ADC,a symmetrical structure is used in a flash ADC and ***,a variable resistor tuning network is placed at the flash input to compensate for different cutoff frequencies of the input impedances of the flash and *** circuit also has a clear clock phase in the MDAC and separate sampling capacitors in the flash ADC to eliminate the nonlinear charge kickback to the input *** proposed circuit,designed using ASMC 0.35-μm BiCMOS technology,occupies an area of 1.4 x 9 mm^2 and is used as the front-end stage in a 14-bit 125-MS/s pipelined *** the trim circuit is enabled,the measured signal-to-noise ratio is improved from 71.5 to 73.6 dB and the spurious free dynamic range is improved from 80.5 to 83.1 dB with a 30.8 MHz input. The maximum input frequency is up to 150 MHz without steep performance degradations.

关键词： pipelined analog-to-digital converter sample-and-hold amplifier SHA-less aperture error

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Facile synthesis of the dodecahydridododecaborate (B12H122-) from borane Lewis base adducts

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Science China Chemistry 2025年

作者： Yi Jing Xin-Ran Liu Xing-Hua Wang Hui Han Sha-Sha Liang Xi-Meng Chen Dong-Hui Wei Lai-sheng Wang Xue-Nian Chen College of Chemistry Zhengzhou University School of Chemistry and Chemical Engineering Henan Key Laboratory of Boron Chemistry and Advanced MaterialsHenan Normal University Department of Chemistry Brown University

Polyhedral boranes are a class of well-known boron molecular clusters widely used in energy,chemistry,medicine,and materials science because of their unique physical and chemical *** efforts have been made in the past decades to find more effective synthetic methods for this important class of boron ***,existing synthetic methods suffer from low efficiency and low ***,we report a facile one-pot synthesis of[（CH3）3S]2B12H12with moderate yields at mild *** mechanisms for the multi-step chemoselective synthesis of B12H122-without other by-products are elucidated based on theoretical results and our previous *** Lewis base used in B–H bond condensation reaction,which acts as a hydrogen or to balance the newly generated polyhedral borane charges,is proposed and studied in *** current study has led to a more effective and selective synthetic method for B12H122-and has also implicated the syntheses of other new polyhedral boranes.

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文明叙事:习近平文化思想的方法论审视

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新疆师范大学学报（哲学社会科学版） 2025年第1期46卷 34-42页

作者：张明谷生秀南京大学马克思主义学院江苏南京210023

文明是中国共产党百余年推进马克思主义中国化时代化的核心线索,文明叙事是中国共产党历史叙事的重要维度,也是习近平文化思想的重要方法论。习近平文化思想的深厚文明意蕴体现在四个方面:一是从历史纵深出发把握“走自己的路”的文明基... 详细信息

文明是中国共产党百余年推进马克思主义中国化时代化的核心线索,文明叙事是中国共产党历史叙事的重要维度,也是习近平文化思想的重要方法论。习近平文化思想的深厚文明意蕴体现在四个方面:一是从历史纵深出发把握“走自己的路”的文明基因,即从中华5000多年文明的历史传承中把握中国道路的来龙去脉及其内在逻辑必然;二是以“第二个结合”为根本方法,重塑发展中华文明的使命担当,不断推动建设中华民族现代文明实现传统文明的现代新生;三是坚守文明超越理念,将新文明的建构与中国式现代化的现实实践相互关联,以中国式现代化创造人类文明新形态,打破西方以资本逻辑为核心的形而上学抽象文明观的历史困境;四是坚持文明交流互鉴,推动落实全球文明倡议,构建人类文明交往新范式。

关键词：习近平文化思想文明叙事 “走自己的路” “第二个结合” 文明交流互鉴

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DETERMINATION　OF　THRESHOLD　PRESSURE　FOR　INFILTRATION　OF　LIQUID　ALUMINIUM　INTO　SHORT　ALUMINA　FIBER　PREFORM

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中国有色金属学会会刊：英文版 1996年第4期6卷 133-137页

作者： Hu lianxi Luo Shoujing Huo Wencan(School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001) School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China

ＤＥＴＥＲＭＩＮＡＴＩＯＮＯＦＴＨＲＥＳＨＯＬＤＰＲＥＳＳＵＲＥＦＯＲＩＮＦＩＬＴＲＡＴＩＯＮＯＦＬＩＱＵＩＤＡＬＵＭＩＮＩＵＭＩＮＴＯＳＨＯＲＴＡＬＵＭＩＮＡＦＩＢＥＲＰＲＥＦＯＲＭ￥ＨｕＬｉａｎｘｉ；ＬｕｏＳｈｏ... 详细信息

ＤＥＴＥＲＭＩＮＡＴＩＯＮＯＦＴＨＲＥＳＨＯＬＤＰＲＥＳＳＵＲＥＦＯＲＩＮＦＩＬＴＲＡＴＩＯＮＯＦＬＩＱＵＩＤＡＬＵＭＩＮＩＵＭＩＮＴＯＳＨＯＲＴＡＬＵＭＩＮＡＦＩＢＥＲＰＲＥＦＯＲＭ￥ＨｕＬｉａｎｘｉ；ＬｕｏＳｈｏｕｊｉｎｇ；ＨｕｏＷｅｎｃａｎ（Ｓ...

关键词： liquid infiltration effective capillary tube radius threshold infiltration pressure metal matrix composite

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A self-powered piezoelectric energy harvesting interface circuit with efficiency- enhanced P-SSHI rectifier

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Journal of Semiconductors 2018年第4期39卷 55-65页

作者： lianxi Liu Yanbo Pang Wenzhi Yuan Zhangming Zhu Yintang Yang School of Microelectronics Xidian University Xi'an 710071 China Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices Xi'an 710071 China

The key to self-powered technique is initiative to harvest energy from the surrounding environment. Harvesting energy from an ambient vibration source utilizing piezoelectrics emerged as a popular method. Effi- cient interface circuits become the main limitations of existing energy harvesting techniques. In this paper, an inter- face circuit for piezoelectric energy harvesting is presented. An active full bridge rectifier is adopted to improve the power efficiency by reducing the conduction loss on the rectifying path. A parallel synchronized switch harvesting on inductor （P-SSHI） technique is used to improve the power extraction capability from piezoelectric harvester, thereby trying to reach the theoretical maximum output power. An intermittent power management unit （IPMU） and an output capacitor-less low drop regulator （LDO） are also introduced. Active diodes （AD） instead of tradition- al passive ones are used to reduce the voltage loss over the rectifier, which results in a good power efficiency. The IPMU with hysteresis comparator ensures the interface circuit has a large transient output power by limiting the output voltage ranges from 2.2 to 2 V. The design is fabricated in a SMIC 0.18/~m CMOS technology. Simulation results show that the flipping efficiency of the P-SSHI circuit is over 80% with an off-chip inductor value of 820/zH. The output power the proposed rectifier can obtain is 44.4/~W, which is 6.7x improvement compared to the maximum output power of a traditional rectifier. Both the active diodes and the P-SSHI help to improve the output power of the proposed rectifier. LDO outputs a voltage of 1.8 V with the maximum 90% power efficiency. The proposed P-SSHI rectifier interface circuit can be self-powered without the need for additional power supply.

关键词： self-powered piezoelectric energy harvesting P-SSHI power management active diode LDO

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