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| 1 | The impacts of conservation agriculture on crop yield in China depend on specific practices, crops and cropping regions显示文摘For smooth and wide application of conservation agriculture(CA), remaining uncertainties about its impacts on crop yield need to be reduced. Based on previous field experiments in China, a meta-analysis was performed to quantify the actual impacts of CA practices(NT: no/reduced-tillage only, CTSR: conventional tillage with straw retention, NTSR: NT with straw retention) on crop yields as compared to conventional tillage without straw retention(CT).Although CA practices increased crop yield by 4.6% on average, there were large variations in their impacts. For each CA practice, CTSR and NTSR significantly increased crop yield by 4.9%and 6.3%, respectively, compared to CT. However, no significant effect was found for NT. Among ecological areas, significant positive effects of CA practices were found in areas with an annual precipitation below 600 mm. Similar effects were found in areas with annual mean air temperature above 5 °C. For cropping regions, CA increased crop yield by 6.4% and 5.5%compared to CT in Northwest and South China, respectively, whereas no significant effects were found in the North China and Northeast China regions. Among crops, the positive effects of CA practices were significantly higher in maize(7.5%) and rice(4.1%) than in wheat(2.9%). NT likely decreased wheat yield. Our results indicate that there are great differences in the impacts of CA practices on crop yield, owing to regional variation in climate and crop types. CA will most likely increase maize yield but reduce wheat yield. It is strongly recommended to apply CA with crop straw retention in maize cropping areas and seasons with a warm and dry climate pattern. | Chengyan Zheng Yu Jiang Changqing Chen Yanni Sun Jinfei Feng Aixing Deng Zhenwei Song Weijian Zhang | 2014 | The Crop Journal2014，2，5： | 15 |
| 2 | Response of grain yield to plant density and nitrogen rate in spring maize hybrids released from 1970 to 2010 in Northeast China显示文摘The objective of this study was to identify the response of grain yield to plant density and nitrogen rate in spring maize hybrids released from 1970 to 2010 and grown extensively in Northeast China.Twenty-one hybrids were grown for 2 years in Northeast China at densities of 30,000,52,500,75,000,and 97,500 plants ha^(-1)and N application levels of 0,150,300,and 450 kg N ha^(-1).Irrespective of density or nitrogen application rate,grain yields both per plant and per unit area were significantly higher for newer than older hybrids.As plant density increased from 30,000 to 97,500 plant ha^(-1),yield per plant of 1970 s,1980 s,1990 s,and 2000 s hybrids decreased by 50%,45%,46%,and 52%,respectively.The response of grain yield per unit area to plant density was curvilinear.The estimated optimum plant densities were about 58,000,49,000,65,000,and 65,000 plants ha^(-1)for hybrids released in the 1970 s,1980s,1990 s,and 2000 s,respectively.The theoretical optimum densities for the hybrids released from the 1970 s to the 2000 s increased by 1750 plants ha^(-1)decade^(-1).Nitrogen fertilization significantly increased grain yields per plant and per unit area for all hybrids.The theoretical optimum N application rates for high yield for hybrids released in the 1970 s and 1980 s were about 280 and 360 kg ha^(-1),and the hybrids from the 1990 s and 2000 s showed highest yield at 330 kg ha^(-1)N.No significant difference in the grain yields of 2000 s hybrids between the N levels of 150 to 450 kg ha^(-1)was found.Significant yield gains per plant and per unit area were found,with average increases of 17.9 g plant^(-1)decade^(-1)and936 kg ha^(-1)decade^(-1)over the period 1970–2010,respectively.Yield gains were attributed mainly to increased yield per plant,contributed by increases in kernel number per ear and1000-kernel weight.The rates of lodging and barren plants of newer hybrids were significantly lower than those of older ones,especially at high plant density. | Chunrong Qian Yang Yu Xiujie Gong Yubo Jiang Yang Zhao Zhongliang Yang Yubo Hao Liang Li Zhenwei Song Weijian Zhang | 2016 | The Crop Journal2016，4，6： | 15 |
| 3 | Integrated(de)multiplexer for orbital angular momentum fiber communication显示文摘The quickly increasing data transfer load requires an urgent revolution in current optical communication. Orbital angular momentum(OAM) multiplexing is a potential candidate with its ability to considerably enhance the capacity of communication. However, the lack of a compact, efficient, and integrated OAM(de)multiplexer prevents it from being widely applied. By attaching vortex gratings onto the facets of a few-mode fiber, we demonstrate an integrated fiber-based OAM(de)multiplexer. A vortex grating fabricated on the fiber facet enables the direct multiplexing of OAM states at one port and the demultiplexing of OAM states at the other port. The measured bit error rate of the carrier signal after propagating through a 5-km few-mode fiber confirms the validity and effectiveness of the proposed approach. The scheme offers advantages in future high-capacity OAM communication based on optical fiber. | ZHENWEI XIE SHECHENG GAO TING LEI SHENGFEI FENG YAN ZHANG FAN LI JIANBO ZHANG ZHAOHUI LI XIAOCONG YUAN | 2018 | Photonics Research2018，6，7： | 13 |
| 4 | Less than 6 GHz resolution THz spectroscopy of water vapor显示文摘在许多的技术象石油工业一样回答的兆兆赫(THz ) 的申请要求高分辨率和多功能认识到不同材料的精确察觉。在这学习水里,在空气的蒸汽与 shortand 被扫描有不同扫描范围的长路径的 THz 分光计。在在长路径的系统的 THz 典型的线的半最大值的完整的宽度到达了不到 7 GHz 和那在突然完成了 5.5 GHz,显示水蒸汽的 THz 光谱学能被用来校准 THz 设备。有正确扫描范围的 THz 系统能是为有由于高分辨率的很类似的结构的固体,液体和气体的材料的鉴定的一种有希望的选择。研究证明多功能的 THz 测试能在许多领域里通过分辨率和采样空格的平衡被认识到,例如油气体工业。 | ZHAN HongLei SUN ShiNing ZHAO Kun LENG WenXiu BAO RiMa XIAO LiZhi ZHANG ZhenWei | 2015 | Science China(Technological Sciences)2015，58，12： | 10 |
| 5 | Temperature-dependent THz vibrational spectra of clenbuterol hydrochloride显示文摘Using the high-resolution Terahertz Time-domain spectroscopy (THz-TDS) and the standard sample pellet technique, the far-infrared vibrational spectra of clenbuterol hydrochloride (CH), a 2 -adrenergic agonist for decreasing fat deposition and enhancing protein accretion, were measured in temperature range of 77-295 K. Between 0.2 and 3.6 THz (6.6-120.0 cm-1 ), seven highly resolved spectral features, strong line-narrowing and a frequency blue-shift were observed with cooling. However, ractopamine hydrochloride, with some structural and pharmacological similarities to clenbuterol hydrochloride, showed no spectral features, indicating high sensitivity and strong specificity of THz-TDS. These results could be used for the rapid and nondestructive CH residual detection in food safety control. | YANG YuPing LEI XiangYun YUE Ai ZHANG ZhenWei | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，4： | 9 |
| 6 | Organic amendments increase corn yield by enhancing soil resilience to climate change显示文摘A 22-year field experiment was conducted in Gongzhuling, Jilin province, China to investigate corn yield response to fertilization practice. Compared to an unfertilized control(CK), all fertilization treatments, including inorganic nitrogen fertilizer only(N), balanced inorganic fertilizers(NPK), NPK plus corn straw(SNPK), and NPK plus farmyard manure(MNPK), resulted in significant increases in corn yield. However, only organic matter amendments sustained increasing yield trends, with annual rates of 0.137 and 0.194 t ha-1for the SPNK and MNPK treatments, respectively(P < 0.05). During the 22 years, the daily mean, maximum and minimum temperatures increased by 0.50, 0.53, and 0.46 °C per decade, whereas precipitation displayed no significant change but showed large seasonal variation. According to a regression analysis, increased air temperature exerted positive effects on corn yields under the SNPK and the MNPK treatments. Under both treatments,soil organic carbon contents and soil nutrient availabilities increased significantly compared to their initial levels in 1990, whereas soil bulk density and total porosity changed slightly under the two treatments, which showed higher soil water storage than other treatments. In contrast, significant increases in soil bulk density and decreases in soil total porosity and soil nutrient availability were observed under the CK, N and NPK treatments. The contributions of soil fertility to corn yield were 28.4%, 37.9%, 38.4%, 39.0%,and 42.9% under CK, N, NPK, SNPK, and MNPK treatments, respectively, whereas climate changes accounted for 27.0%, 14.6%, 12.4%, 11.8%, and 10.8%. These results indicate that, in Northeast China, organic matter amendments can mitigate negative and exploit positive effects of climate change on crop production by enhancing soil quality. | Zhenwei Song Hongjun Gao Ping Zhu Chang Peng Aixing Deng Chengyan Zheng Md Abdul Mannaf Md Nurul Islam Weijian Zhang | 2015 | The Crop Journal2015，3，2： | 8 |
| 7 | Non-destructive detection of pigments in oil painting by using terahertz tomography显示文摘Dear Editors,Terahertz technology has been applied in many fields[1–3].The protection and restoration of historical relics and cultural heritage,which is a new application area of terahertz technology,have been attracting much attention recently[4,5]because of its social significance and market prospects.The most important premise is to obtain information of the cultural relics without damaging them again.Therefore the appropriate non-destructively testing methods are | ZHANG ZhenWei WANG KeJia LEI Yong ZHANG ZhuoYong ZHANG ZhenWei WANG KeJia LEI Yong ZHANG ZhuoYong ZHAO YuanMeng LI ChenYu GU An SHI NingChang ZHAO Kun ZHAN HongLei ZHANG CunLin | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，12： | 8 |
| 8 | Upconversion nano-photosensitizer targeting into mitochondria for cancer apoptosis induction and cyt c fluorescence monitoring显示文摘反应的氧种类(mitoROS ) 玩的 mitochondrial 的混乱在癌症房间 apoptosis 的一个主要角色。这里,我们设计了 core/shell-structured 有由 photosensitizer (PS ) 涂的核心合并了的做 lanthanide 的 upconversion nanoparticle (UCNP ) 的指向线粒体的基于 upconversion 的使 nano 具有感光性(TPP-UC (PS )) 稠密的硅石壳。有外部在红外线附近的激光(NIR ) 的后面的照耀,在引起为激活的基于 upconversion 的光力学的治疗(UC 太平洋夏季时间) 胀大的严肃的 mitochondrial 矩阵的线粒体的 TPP-UC (PS ) ,和细胞色素 c (cyt c ) 的动员响应增加的 mitoROS 被放大。明确地,这包含 heme cyt c 能被改变 TPP-UC (PS ) s upconversion 光信号(UCL ) 监视,它可以便于在里面为 apoptosis 研究的 cyt c 的 situ 察觉。作为概念的一个证明,我们的设计 TPP-UC (PS ) 可以为在 NIR 刺激下面控制癌症房间 apoptosis 并且为用动态 UCL 学习 apoptosis 提供重要机会,它被本地 cyt c 影响。 | Yanyan Liu Jiawen Zhang Changjing Zuo Zhen Zhang Dalong Ni Chen Zhang Jing Wang Hui Zhang Zhenwei Yao Wenbo Bu | 2016 | Nano Research2016，9，11： | 8 |
| 9 | Ultra-broadband on-chip twisted light emitter for optical communications显示文摘On-chip twisted light emitters are essential components of orbital angular momentum(OAM)communication devices1,2.These devices address the growing demand for high-capacity communication systems by providing an additional degree of freedom for wavelength/frequency division multiplexing(WDM/FDM).Although whispering-gallery-mode-enabled OAM emitters have been shown to possess some advantages3–5,such as compactness and phase accuracy,their inherent narrow bandwidths prevent them from being compatible with WDM/FDM techniques.Here,we demonstrate an ultra-broadband multiplexed OAM emitter that utilizes a novel joint path-resonance phase control concept.The emitter has a micron-sized radius and nanometer-sized features.Coaxial OAM beams are emitted across the entire telecommunication band from 1,450 to 1,650 nm.We applied the emitter to an OAM communication with a data rate of 1.2 Tbit/s assisted by 30-channel optical frequency combs(OFCs).The emitter provides a new solution to further increase capacity in the OFC communication scenario. | Zhenwei Xie Ting Lei Fan Li Haodong Qiu Zecen Zhang Hong Wang Changjun Min Luping Du Zhaohui Li Xiaocong Yuan | 2018 | Light(Science & Applications)2018，7，1： | 7 |
| 10 | Cage slip characteristics of a cylindrical roller bearing with a trilobe-raceway显示文摘Based on dynamic analysis of rolling bearings, the nonlinear dynamic differential equations of a cylindrical roller bearing with a trilobe-raceway were established and solved by the GSTIFF(gear stiff) integer algorithm with a variable step. The influences of structural parameters and the tolerance of the trilobe-raceway, working conditions of the bearing, and the outer ring installation method on cage slip characteristics were investigated. The results show that:(i) The cage slip ratio and bearing rating life of a cylindrical roller bearing with a trilobe-raceway would reduce when the low-radius(radius of the outer raceway contour at the lowest point) and D-value(difference value between the high and low points of the outer raceway contour) decrease, and the former(low-radius) contributes more significantly.(ii) The cage slip ratio of a cylindrical roller bearing with a trilobe-raceway rises with the increase of the bearing speed, and decreases with the increase of the radial force; the variation range increases with the increase of the low-radius.(iii) When the installation angle of the outer ring increases in a period, the cage slip ratio remains unchanged while the bearing rating life rises up a little. Therefore, when installing a cylindrical roller bearing with a trilobe-raceway, the location of the maximum radius shall be under that of the radial force to improve the bearing rating life.(iv) With the increase of the roundness of the base circle where the radius of the lowest points of the trilobe-raceway contour locates, the cage slip ratio rises gradually and the bearing rating life decreases. | Sier DENG Yujia LU Wenhu ZHANG Xue SUN Zhenwei LU | 2018 | Chinese Journal of Aeronautics2018，31，2： | 7 |
| 11 | Optical meta-waveguides for integrated photonics and beyond显示文摘The growing maturity of nanofabrication has ushered massive sophisticated optical structures available on a photonic chip.The integration of subwavelength-structured metasurfaces and metamaterials on the canonical building block of optical waveguides is gradually reshaping the landscape of photonic integrated circuits,giving rise to numerous metawaveguides with unprecedented strength in controlling guided electromagnetic waves.Here,we review recent advances in meta-structured waveguides that synergize various functional subwavelength photonic architectures with diverse waveguide platforms,such as dielectric or plasmonic waveguides and optical fibers.Foundational results and representative applications are comprehensively summarized.Brief physical models with explicit design tutorials,either physical intuition-based design methods or computer algorithms-based inverse designs,are cataloged as well.We highlight how meta-optics can infuse new degrees of freedom to waveguide-based devices and systems,by enhancing light-matter interaction strength to drastically boost device performance,or offering a versatile designer media for manipulating light in nanoscale to enable novel functionalities.We further discuss current challenges and outline emerging opportunities of this vibrant field for various applications in photonic integrated circuits,biomedical sensing,artificial intelligence and beyond. | Yuan Meng Yizhen Chen Longhui Lu Yimin Ding Andrea Cusano Jonathan A.Fan Qiaomu Hu Kaiyuan Wang Zhenwei Xie Zhoutian Liu Yuanmu Yang Qiang Liu Mali Gong Qirong Xiao Shulin Sun Minming Zhang Xiaocong Yuan Xingjie Ni | 2021 | Light(Science & Applications)2021，10，12： | 6 |
| 12 | Nuclear Aurora kinase A switches m^(6)A reader YTHDC1 to enhance an oncogenic RNA splicing of tumor suppressor RBM4显示文摘Aberrant RNA splicing produces alternative isoforms of genes to facilitate tumor progression,yet how this process is regulated by oncogenic signal remains largely unknown.Here,we unveil that non-canonical activation of nuclear AURKA promotes an oncogenic RNA splicing of tumor suppressor RBM4 directed by m^(6)A reader YTHDC1 in lung cancer.Nuclear translocation of AURKA is a prerequisite for RNA aberrant splicing,specifically triggering RBM4 splicing from the full isoform(RBM4-FL)to the short isoform(RBM4-S)in a kinase-independent manner. | SiSi Li YangFan Qi JiaChuan Yu YuChao Hao Bin He MengJuan Zhang ZhenWei Dai TongHui Jiang SuYi Li Fang Huang Ning Chen Jing Wang MengYing Yang DaPeng Liang Fan An JinYao Zhao WenJun Fan YuJia Pan ZiQian Deng YuanYuan Luo Tao Guo Fei Peng ZhiJie Hou ChunLi Wang FeiMeng Zheng LingZhi Xu Jie Xu QingPing Wen BiLian Jin Yang Wang Quentin Liu | 2022 | Signal Transduction and Targeted Therapy2022，7，5： | 4 |
| 13 | Probing the limits of plasmonic enhancement using a two-dimensional atomic crystal probe显示文摘Achieving larger electromagnetic enhancement using a nanogap between neighboring metallic nanostructures has been long pursued for boosting light–matter interactions.However,the quantitative probing of this enhancement is hindered by the lack of a reliable experimental method for measuring the local fields within a subnanometer gap.Here,we use layered MoS2 as a two-dimensional atomic crystal probe in nanoparticle-on-mirror nanoantennas to measure the plasmonic enhancement in the gap by quantitative surface-enhanced Raman scattering.Our designs ensure that the probe filled in the gap has a well-defined lattice orientation and thickness,enabling independent extraction of the anisotropic field enhancements.We find that the field enhancement can be safely described by pure classical electromagnetic theory when the gap distance is no<1.24 nm.For a 0.62 nm gap,the probable emergence of quantum mechanical effects renders an average electric field enhancement of 114-fold,38.4%lower than classical predictions. | Wen Chen Shunping Zhang Meng Kang Weikang Liu Zhenwei Ou Yang Li Yexin Zhang Zhiqiang Guan Hongxing Xu | 2018 | Light(Science & Applications)2018，7，1： | 4 |
| 14 | Field experimental study on pullout forces of rice seedlings and barnyard grasses for mechanical weed control in paddy field显示文摘Pullout forces of rice seedling and barnyard grass were tested by universal testing machine controlled by WDW-5 type microcomputer to obtain the pullout forces of rice seedling and barnyard grass.The measured pullout force was used to improve the weeding rate and reduce the rice seedling damage rate caused by mechanical weeding device.According to the measured continuous curve of pullout forces of rice seeding and barnyard grasses in weeding period,the best range of force required to pull out barnyard grasses from soil with no injury and damage to rice seedlings was discussed.Reasons for the difference in the pulling force were analyzed.Results show that,with the increment of the number of single cell rice seedlings the pullout force increases.The pullout forces of single cell rice seedlings and barnyard grasses at first increased slowly reaching the maximum value followed by rapid drop and finally it remained steady.The minimum pullout forces recorded during rice seedlings at the first and the second weeding periods were 2.57 N and 9.70 N,respectively,while the minimum forces during the first and second weeding periods were recorded as 1.24 N and 7.51 N,respectively,for barnyard grasses.The results show that the pullout forces of weeding to rice seedlings and barnyard grasses should be within 1.24 N to 2.57 N and 7.51 N to 9.70 N respectively in the first and second weeding periods. | Wang Jinwu Tao Guixiang Liu Yongjun Pan Zhenwei Zhang Chunfeng | 2014 | International Journal of Agricultural and Biological Engineering2014，7，6： | 4 |
| 15 | LncDACH1 promotes mitochondrial oxidative stress of cardiomyocytes by interacting with sirtuin3 and aggravates diabetic cardiomyopathy显示文摘Diabetic cardiomyopathy(DCM)is a common complication in diabetic patients.The molecular mechanisms of DCM remain to be fully elucidated.The intronic long noncoding RNA of DACH1(lnc DACH1)has been demonstrated to be closely associated with heart failure and cardiac regeneration.In this study,we investigated the role of lnc DACH1 in DCM and the underlying molecular mechanisms.The expression of lnc DACH1 was increased in DCM hearts and in high glucose-treated cardiomyocytes.Knockout of lnc DACH1 reduced mitochondrial oxidative stress,cell apoptosis,cardiac fibrosis and hypertrophy,and improved cardiac function in DCM mice.Overexpression of lnc DACH1 exacerbated mitochondria-derived reactive oxygen species(ROS)level and apoptosis,decreased activity of manganese superoxide dismutase(Mn-SOD);while silencing of lnc DACH1 attenuated ROS production,mitochondrial dysfunction,cell apoptosis,and increased the activity of Mn-SOD in cardiomyocytes treated with high glucose.Lnc DACH1 directly bound to sirtuin3(SIRT3)and facilitated its degradation by ubiquitination,therefore promoting mitochondrial oxidative injury and cell apoptosis in mouse hearts.In addition,SIRT3 silencing abrogated the protective effects of lnc DACH1 deficiency in cardiomyocytes.In summary,lnc DACH1 aggravates DCM by promoting mitochondrial oxidative stress and cell apoptosis via increasing ubiquitination-mediated SIRT3 degradation in mouse hearts.Inhibition of lnc DACH1 represents a novel therapeutic strategy for the intervention of diabetic cardiomyopathy. | Qi Zhang Danyang Li Xue Dong Xiaowen Zhang Junwu Liu Lili Peng Bo Meng Qi Hua Xinyu Pei Lu Zhao Xiaoxi Hu Yang Zhang Zhenwei Pan Yanjie Lu Baofeng Yang | 2022 | Science China(Life Sciences)2022，65，6： | 4 |
| 16 | CMOS-compatible all-optical modulator based on the saturable absorption of graphene显示文摘Graphene resting on a silicon-on-insulator platform offers great potential for optoelectronic devices.In the paper,we demonstrate all-optical modulation on the graphene-silicon hybrid waveguides(GSHWs)with tens of micrometers in length.Owing to strong interaction between graphene and silicon strip waveguides with compact light confinement,the modulation depth reaches 22.7%with a saturation threshold down to 1.38 pJ per pulse and a 30-μm-long graphene pad.A response time of 1.65 ps is verified by a pump-probe measurement with an energy consumption of 2.1 pJ.The complementary metal-oxide semiconductor compatible GSHWs with the strip configuration exhibit great potential for ultrafast and broadband all-optical modulation,indicating that employing two-dimensional materials has become a complementary technology to promote the silicon photonic platform. | HONG WANG NINGNING YANG LIMIN CHANG CHAOBIAO ZHOU SHIYU LI MENG DENG ZHENWEI LI QIANG LIU CHI ZHANG ZHIYONG LI YI WANG | 2020 | Photonics Research2020，8，4： | 4 |
| 17 | OsbZIP60-mediated unfolded protein response regulates grain chalkiness in rice显示文摘Grain chalkiness,an undesirable trait caused by complex factors,has great negative impacts on the quality and economic value of rice.However,little is known about the regulatory mechanism of grain chalkiness,particularly the effect of endoplasmic reticulum(ER)stress.Here,a genome-wide association study(GWAS)reveals that the transcription factor Osb ZIP60 is a vital regulator of rice grain chalkiness.Genetic analysis demonstrates that knockout of Osb ZIP60 results in extremely high grain chalkiness and aberrant structure of storage substances.Notably,the expression of unfolded protein response(UPR)genes,such as OsbZIP50,Os Bi P1,Os Bi P2 and Os Bi P3,is up-regulated in the endosperm cells of osbzip60,and overexpression of all these UPR genes causes various degrees of chalkiness.Furthermore,Osb ZIP60 is found to activate the expression of key genes related to grain chalkiness,such as GPA3,FSE1,FLO7,Chalk5,Os NF-YB1,and Os PK2,whose expression is significantly suppressed in osbzip60 and overexpression lines of Osb ZIP50,Os Bi P1,Os Bi P2,and Os Bi P3.Our study provides novel insights into the function of Osb ZIP60 and the role of the UPR pathway in the formation of grain chalkiness in rice. | Weiping Yang Pengkun Xu Juncheng Zhang Shuo Zhang Zhenwei Li Ke Yang Xinyuan Chang Yibo Li | 2022 | Journal of Genetics and Genomics2022，49，5： | 4 |
| 18 | Controlling dispersion and morphology of MoS2 nanospheres by hydrothermal method using SiO2 as template显示文摘Monodispersed MoS_2 nanospheres were successfully synthesized by using SiO_2 as hard template. The size and morphology of the MoS_2 nanospheres could be finely controlled by the content of SiO_2 and sulfur precursors. Furthermore, higher surface area of monodispersed MoS_2 nanospheres exhibited high reaction rate for hydrodesulfurization(HDS) of dibenzenethiophene(DBT). | Zhenwei Zhang Peng Wang Fei Wang Yaqing Li Wei Lu Xingmao Jiang Xia Gui Zhi Yun | 2018 | Chinese Journal of Chemical Engineering2018，26，5： | 3 |
| 19 | Safety of endovascular therapy for symptomatic intracranial artery stenosis:a national prospective registry显示文摘Introduction The safety outcomes of endovascular therapy for intracranial artery stenosis in a real-world stetting are largely unknown.The Clinical Registration Trial of Intracranial Stenting for Patients with Symptomatic Intracranial Artery Stenosis(CRTICAS)was a prospective,multicentre,real-world registry designed to assess these outcomes and the impact of centre experience.Methods 1140 severe,symptomatic intracranial arterial stenosis(ICAS)patients treated with endovascular therapy were included from 26 centres,further divided into three groups according to the annual centre volume of intracranial angioplasty and stent placement procedures over 2 years:(1)high volume for≥25 cases/year;(2)moderate volume for 10–25 cases/year and(3)low volume for<10 cases/year.Results The rate of 30-day stroke,transient ischaemic attack or death was 9.7%(111),with 5.4%,21.1%and 9.7%in high-volume,moderate-volume and low-volume centres,respectively(p<0.05).Multivariable logistic regression confirmed high-volume centres had a significantly lower primary endpoint compared with moderate-volume centres(OR=0.187,95%CI:0.056 to 0.627;p≤0.0001),while moderate-volume and low-volume centres showed no significant difference(p=0.8456).Conclusion Compared with the preceding randomised controlled trials,this real-world,prospective,multicentre registry shows a lower complication rate of endovascular treatment for symptomatic ICAS.Non-uniform utilisation in endovascular technology,institutional experience and patient selection in different volumes of centres may have an impact on overall safety of this treatment. | Yabing Wang Tao Wang Adam Andrew Dmytriw Kun Yang Liqun Jiao Huaizhang Shi Jie Lu Tianxiao Li Yujie Huang Zhenwei Zhao Wei Wu Jieqing Wan Qinjian Sun Bo Hong Yongli Li Liyong Zhang Jianfeng Chu Qiong Cheng Yiling Cai Pengfei Wang Qi Luo Hua Yang Baijing Dong Yang Zhang Jun Zhao Zuoquan Chen Wei Li Xiaoxin Bai Weiwen He Xueli Cai Maimai Ti Osama O Zaidat | 2022 | Stroke & Vascular Neurology2022，7，2： | 3 |
| 20 | New flame retardant epoxy resins based on cyclophosphazene-derived curing agents显示文摘To obtain high-efficiency flame retardancy of epoxy resins,a cyclophosphazene derivative tri-(ohenylenediamino)cyclotriphosphazene(3 ACP)was successfully synthesized and used as a curing agent for the thermosetting of an epoxy resin system.The flame retardant properties,thermal stability,and pyrolysis mechanism of the resultant thermosets were investigated in detail.The experiments indicated that the synthesized thermoset achieved a UL-94 V-0 rate under a vertical burning test as well as a limiting oxygen index(LOI)of 29.2%,which was able to reach V-0 even when a small amount of 3 ACP was incorporated.Scanning electronic microscopic observation demonstrated that the char residue of the thermosets was extremely expanded after the vertical flame test.Thermal analysis showed that the samples had a lower initial decomposition temperature when 3 ACP was introduced into the epoxy resin systems.This indicates that the carbonization ability of the thermosets was significantly improved at elevated temperatures.In addition,the incorporation of 3 ACP can effectively suppress the release of combustible gases during the pyrolysis process,and the decomposition of E-44/DDS-3 ACP curing systems also promotes the formation of polyphosphoramides charred layer in the condensed phase.The investigation on the chemical structures of both the gaseous and condensed phase pyrolysis process confirmed the flame-retardant mechanism of the 3 ACP-cured epoxy resins.Therefore,the nonflammable halogen-free epoxy resin developed in this study has potential applications in electric and electronic fields for environment protection and human health. | Zhenwei Miao Dongpeng Yan Xiaodong Wang Xinfang Zhang Wenqi Zhou Munan Qiu Fan Yang Zhanpeng Wu | 2022 | Chinese Chemical Letters2022，33，8： | 3 |
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