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秸秆还田和耕作方式对玉米光合特性及产量的影响

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山东农业科学 2024年第6期56卷 30-39页

作者：高鹏举李发桥唐国荣石达金谭贤杰程伟东周勋波吕巨智广西大学农学院广西南宁530004 广西壮族自治区农业科学院玉米研究所广西南宁530007

探究秸秆还田和耕作方式对玉米光合特性及产量的影响,为玉米产量提高提供合理的耕作方式。本试验采用裂区设计,在主区秸秆还田和传统种植模式下,设置深松后旋耕(SS-RT)、旋耕(RT)、深松(SS)和免耕(NT)4个耕作方式副区处理,对其2022年春... 详细信息

探究秸秆还田和耕作方式对玉米光合特性及产量的影响,为玉米产量提高提供合理的耕作方式。本试验采用裂区设计,在主区秸秆还田和传统种植模式下,设置深松后旋耕(SS-RT)、旋耕(RT)、深松(SS)和免耕(NT)4个耕作方式副区处理,对其2022年春秋两季玉米的光合特性、叶绿素相对含量、叶面积指数、干物质积累和产量进行测定和比较分析。结果表明,较传统种植模式,秸秆还田模式下SS-RT、RT、SS和NT处理的叶面积指数分别提高11.01%、6.48%、8.24%、8.75%,叶绿素相对含量分别提高5.96%、5.14%、5.27%、6.49%,净光合速率分别提高7.57%、9.04%、8.90%、9.39%,穗干物质量分别提高9.03%、5.40%、6.73%、8.78%,周年产量分别提高2.92%、4.73%、2.28%、3.52%;且秸秆还田模式下SS-RT处理的春秋季产量均值较RT、SS和NT分别提高2.38%、12.26%、17.01%。综上可知,秸秆还田模式下深松后旋耕、旋耕、深松和免耕均可提高玉米的光合性能、干物质积累量和周年产量,且以秸秆还田结合深松后旋耕的效果更佳。

关键词：玉米秸秆还田耕作方式光合特性产量

China-EU Relations Forge Ahead

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China Today 2015年第5期64卷 40-43页

作者： cheng weidong Institute of European Studies Chinese Academy of Social Sciences

THE year 2015 marks the 40th anniversary of the establishment of diplomatic relations between China and the *** the past 40years these bilateral ties have made sustained headway and astonishing *** one expected that the bilateral relationship,first established on May 6,1975 between China and the then European Community,would become one of the most important and influential in the world *** the two

关键词：中国经济改革开放经济增长国民收入民生问题

Generalized Demodulation Transform for Bearing Fault Diagnosis Under Nonstationary Conditions and Gear Noise Interferences

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Chinese Journal of Mechanical Engineering 2019年第1期32卷 79-89页

作者： Dezun Zhao Jianyong Li weidong cheng Zhiyang He Department of Mechanical Engineering Tsinghua University School of Mechanical Electronic and Control Engineering Beijing Jiaotong University Key Laboratory of Vehicle Advanced Manufacturing Measuring and Control Technology Ministry of Education

It is a challenging issue to detect bearing fault under nonstationary conditions and gear noise interferences. Meanwhile, the application of the traditional methods is limited by their deficiencies in the aspect of computational accuracy and e ciency, or dependence on the tachometer. Hence, a new fault diagnosis strategy is proposed to remove gear interferences and spectrum smearing phenomenon without the tachometer and angular resampling technique. In this method, the instantaneous dominant meshing multiple(IDMM) is firstly extracted from the time-frequency representation(TFR) of the raw signal, which can be used to calculate the phase functions(PF) and the frequency points(FP). Next, the resonance frequency band excited by the faulty bearing is obtained by the band-pass filter. Furthermore, based on the PFs, the generalized demodulation transform(GDT) is applied to the envelope of the filtered signal. Finally, the target bearing is diagnosed by matching the peaks in the spectra of demodulated signals with the theoretical FPs. The analysis results of simulated and experimental signal demonstrate that the proposed method is an e ective and reliable tool for bearing fault diagnosis without the tachometer and the angular resampling.

关键词： Bearing fault diagnosis Generalized demodulation transform Nonstationary conditions Gear noise

Chlorfenapyr poisoning:mechanisms,clinical presentations,and treatment strategies

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World Journal of Emergency Medicine 2024年第3期15卷 214-219页

作者： Ji cheng Yulu Chen weidong Wang Xueqi Zhu Zhenluo Jiang Peng Liu Liwen Du Emergency Department Ningbo No.2 HospitalNingbo 315010China

BACKGROUND:Chlorfenapyr is used to kill insects that are resistant to organophosphorus *** poisoning has a high mortality rate and is difficult to *** article aims to review the mechanisms,clinical presentations,and treatment strategies for chlorfenapyr *** RESOURCES:We conducted a review of the literature using PubMed,Web of Science,and SpringerLink from their beginnings to the end of October *** inclusion criteria were systematic reviews,clinical guidelines,retrospective studies,and case reports on chlorfenapyr poisoning that focused on its mechanisms,clinical presentations,and treatment *** references in the included studies were also examined to identify additional ***:We included 57 studies in this *** can be degraded into tralopyril,which is more toxic and reduces energy production by inhibiting the conversion of adenosine diphosphate to adenosine *** fever and altered mental status are characteristic clinical presentations of chlorfenapyr *** it occurs,respiratory failure occurs immediately,ultimately leading to cardiac arrest and *** poisoning is diflcult to treat,and there is no specific ***:Chlorfenapyr is a new pyrrole *** it has been identified as a moderately toxic pesticide by the World Health Organization(WHO),the mortality rate of poisoned patients is extremely *** is no specific antidote for chlorfenapyr ***,based on the literature review,future efforts to explore rapid and effective detoxification methods,reconstitute intracellular oxidative phosphorylation couplings,identify early biomarkers of chlorfenapyr poisoning,and block the conversion of chlorfenapyr to tralopyril may be helpful for emergency physicians in the diagnosis and treatment of this disease.

关键词： Chlorfenapyr poisoning Mechanism Clinical presentation Treatment

Enhancing cancer immunotherapy:Nanotechnology-mediated immunotherapy overcoming immunosuppression

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Acta Pharmaceutica Sinica B 2024年第9期14卷 3834-3854页

作者： Yunna Chen Qianqian Zhou Zongfang Jia Nuo cheng Sheng Zhang weidong Chen Lei Wang Key Laboratory of Molecular Biology(Brain diseases) Anhui University of Chinese MedicineHefei 230012China MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials Hefei 230012China Anhui Province Key Laboratory of Chinese Medicinal Formul1 Hefei 230012China

Immunotherapy is an important cancer treatment method that offers hope for curing cancer *** immunotherapy has achieved initial success,a major obstacle to its widespread adoption is the inability to benefit the majority of *** success or failure of immunotherapy is closely linked to the tumor’s immune ***,there has been significant attention on strategies to regulate the tumor immune microenvironment in order to stimulate anti-tumor immune responses in cancer *** distinctive physical properties and design flexibility of nanomedicines have been extensively utilized to target immune cells(including tumor-associated macrophages(TAMs),T cells,myeloid-derived suppressor cells(MDSCs),and tumor-associated fibroblasts(TAFs)),offering promising advancements in cancer *** this article,we have reviewed treatment strategies aimed at targeting various immune cells to regulate the tumor immune *** focus is on cancer immunotherapy models that are based on nanomedicines,with the goal of inducing or enhancing anti-tumor immune responses to improve *** is worth noting that combining cancer immunotherapy with other treatments,such as chemotherapy,radiotherapy,and photodynamic therapy,can maximize the therapeutic ***,we have identified the challenges that nanotechnology-mediated immunotherapy needs to overcome in order to design more effective nanosystems.

关键词： Immunotherapy Nanomedicine Tumor immunosuppressive microenvironment Cancer T cells Immunogenic cell death Immune checkpoint inhibitors Extracellular matrix

Effect of chemical ordering annealing on superelasticity of Ni-Mn-Ga-Fe ferromagnetic shape memory alloy microwires

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Chinese Physics B 2020年第5期29卷 414-419页

作者： Yanfen Liu Xuexi Zhang Hongxian Shen Jianfei Sun Qinan Li Xiaohua Liu Jianjun Li weidong cheng Department of Physics Qiqihar UniversityQiqihar 161006China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China

Ni50Mn25Ga20Fe5 ferromagnetic shape memory alloy microwires with diameters of^30-50μm and grain sizes of^2-5μm were prepared by melt-extraction technique.A step-wise chemical ordering annealing was carried out to improve the superelasticity strain and recovery ratio which were hampered by the internal stress,compositional inhomogeneity,and high-density defects in the as-extracted Ni50Mn25Ga20Fe5 *** annealed microwires exhibited enhanced atomic ordering degree,narrow thermal hysteresis,and high saturation magnetization under a low magnetic *** a result,the annealed microwire showed decreased superelastic critical stress,improved reversibility,and a high superelastic strain(1.9%)with a large recovery ratio(>96%).This kind of filamentous material with superior superelastic effects may be promising materials for minor-devices.

关键词： Ni-Mn-Ga-Fe microwire chemical ordering annealing martensite transformation superelasticity

Identification and validation of novel prognostic fatty acid metabolic gene signatures in colon adenocarcinoma through systematic approaches

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Oncology Research 2024年第2期32卷 297-308页

作者： HENG ZHANG WENJING cheng HAIBO ZHAO weidong CHEN QIUJIE ZHANG QING-QING YU Department of Laboratory Shandong Daizhuang HospitalJining272051China Jining No.1 People’s Hospital Shandong First Medical UniversityJining272000China

Colorectal cancer(CRC)belongs to the class of significantly malignant tumors found in ***,dysregulated fatty acid metabolism(FAM)has been a topic of attention due to its modulation in cancer,specifically ***,the regulatory FAM pathways in CRC require comprehensive ***:The clinical and gene expression data of 175 fatty acid metabolic genes(FAMGs)linked with colon adenocarcinoma(COAD)and normal cornerstone genes were gathered through The Cancer Genome Atlas(TCGA)-COAD corroborating with the Molecular Signature Database v7.2(MSigDB).Initially,crucial prognostic genes were selected by uni-and multi-variate Cox proportional regression analyses;then,depending upon these identified signature genes and clinical variables,a nomogram was ***,to assess tumor immune characteristics,concomitant evaluation of tumor immune evasion/risk scoring were ***:A 8-gene signature,including ACBD4,ACOX1,CD36,CPT2,ELOVL3,ELOVL6,ENO3,and SUCLG2,was generated,and depending upon this,CRC patients were categorized within high-risk(H-R)and low-risk(L-R)***,risk and age-based nomograms indicated moderate discrimination and good *** data confirmed that the 8-gene model efficiently predicted CRC patients’***,according to the conjoint analysis of tumor immune evasion and the risk scorings,the H-R cohort had an immunosuppressive tumor microenvironment,which caused a substandard ***:This investigation established a FAMGs-based prognostic model with substantially high predictive value,providing the possibility for improved individualized treatment for CRC individuals.

关键词： Fatty acid metabolism Colorectal cancer Gene signatures Machine learning

Traditional Sports of Minority Nationalities Bloom

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Women of China 2000年第1期 27-29页

作者： ZHANG PING, cheng weidong and HUANG YINPENG

The Sixth National Games for Traditional Sports of Minority Nationalities opened at Beijing Workers' Stadium in September 1999.

关键词： Traditional Sports of Minority Nationalities Bloom

Unraveling the stereoscopic gene transcriptional landscape of zebrafish using Fish SED,a fish spatial expression database with multispecies scalability

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Science China(Life Sciences) 2024年第4期67卷 843-846页

作者： cheng Guo weidong Ye Danying Cao Mijuan Shi Wanting Zhang Yingyin cheng Yaping Wang Xiao-Qin Xia Institute of Hydrobiology Chinese Academy of SciencesWuhan 430072China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijingChina The Innovative Academy of Seed Design Chinese Academy of SciencesBeijing 100101China

Dear Editor,The expression profile demonstrates how each gene was expressed in the target tissue or cell at a given *** heterogeneity is a biological concept characterized by the presence of numerous cells with varying functions and expression profiles within organ/tissue *** is also cell-to-cell signaling,which implies that the extracellular environment and spatial location influence intracellular transcription,resulting in spatial heterogeneity of gene expression within the same cell type.

关键词： landscape fish database