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EFFECT OF ELECTRIC FERTILIZER ON SOIL PROPERTIES

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Chinese Geographical Science 2004年第1期14卷 71-74页

作者： WANGYa-qin WANGJi-hong VocationalandTechnologicalCollege ChangchunUniversityChangchun130022P.R.China DepartmentofSoilChemistry JilinAgriculturalUniversityChangchun130118P.R.China

Electric fertilizer, i. e. exerting electric field on plants during growing season instead of chemical fertilizer, is a kind of physical fertilizer, and the third kind of fertilizer with developmental prospect after inorganic fertilizer and organic fertilizer. For the purpose of studying the changes of physical and chemical properties of soil after exerting electric field, five treatments with different applications of chemical fertilizer were arranged on the black soil in Yushu City of Jilin Province by randomized block method, and electric field was exerted on plants every ten days during the growing season. Through sample analysis the paper arrives at following conclusions: 1) Exerting electric field can make soil′s granular structure increase, bulk density decrease, moisture capacity increase, thus improving the perviousness of soil. 2) Exerting electric field can make microorganism′s number increase and activity strengthen, thus activating nutrient and increasing organic matter content. 3) Exerting electric field with 0.1A medium has the best effect. So the chemical fertilizer can be saved. Therefore, we can say that the application of electric fertilizer is favorable for decreasing chemical poison, improving soil, relaxing the contradiction between the supply and demand of chemical fertilizer, and decreasing production cost of agriculture and forestry.

关键词： electric fertilizer soil property rival action black soil

An efficient and balanced feature pyramid network: shared-FPN

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Optoelectronics Letters 2025年

作者： Tian Sulong qin Longfei Pang Wenchao Gao Ying Zhao Dexin School of Computer Science and Engineering， Tianjin University of Technology Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology， Tianjin University of Technology

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-FPN(Shared Feature Pyramid Network). Our design aims to effectively address the trade-off between these two factors. Neck modules are crucial for effectively fusing multi-scale information in neural network models. However， traditional neck designs， with their single structure， have struggled to significantly improve detection performance. In recent years， the incorporation of neural architecture search techniques in neck design has led to an increase in model complexity. This trade-off between model complexity and detection performance highlights the need for more efficient neck design approaches. Not only does Shared-FPN not increase the number of model parameters and FLOPs， but it also can be easily ported to any of the detection models. It improves on 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， which contains mostly large objects， Shared-FPN's mAP was improved by 11.2% compared to FPN with YOLOX-s as the detector. On the COCO dataset， which contains mostly small objects， Shared-FPN's mAP was improved by 7.8% compared to FPN and 7.1% compared to PAFPN with Faster RCNN as the detector. Shared-FPN can be easily inserted into any of the detectors for better performance in various scenarios， such as small， medium or large objects.

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Whole-infrared-band camouflage with dual-band radiative heat dissipation

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Light(Science & Applications) 2023年第11期12卷 2391-2401页

作者： Bing qin Yining Zhu Yiwei Zhou Min qiu Qiang Li State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake University18 Shilongshan RoadHangzhou 310024 ZhejiangChina Institute of Advanced Technology Westlake Institute for Advanced Study18 Shilongshan RoadHangzhou 310024 ZhejiangChina

Advanced multispectral detection technologies have emerged as a significant threat to objects,necessitating the use of multiband ***,achieving effective camouflage and thermal management across the entire infrared spectrum,especially the short-wave infrared(SWIR)band,remains *** paper proposes a multilayer wavelength-selective emitter that achieves effective camouflage across the entire infrared spectrum,including the near-infrared(NIR),SWIR,mid-wave infrared(MWIR),and long-wave infrared(LWIR)bands,as well as the visible(VIS)***,the emitter enables radiative heat dissipation in two non-atmospheric windows(2.5-3μm and 5-8μm).The emitter’s properties are characterized by low emittance of 0.270/0.042/0.218 in the SWIR/MWIR/LWIR bands,and low reflectance of 0.129/0.281 in the VIS/NIR ***,the high emittance of 0.742/0.473 in the two non-atmospheric windows ensures efficient radiative heat dissipation,which results in a temperature decrement of 14.4℃ compared to the Cr reference at 2000Wm^(−2) input power *** work highlights the role of solar radiance in camouflage,and provides a comprehensive guideline for developing multiband camouflage compatible with radiative heat dissipation,from the visible to LWIR.

关键词： dissipation visible radiative

Clinicopathological features and prognosis assessment of extranodal follicular dendritic cell sarcoma

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World Journal of Gastroenterology 2010年第20期16卷 2504-2519页

作者： Li, Lan Shi, Yong-hong Guo, Zhi-Juan qiu, Tian Guo, Lei Yang, hong-Ying Zhang, Xun Zhao, Xin-Ming Su, qin Chinese Acad Med Sci Inst Canc Dept Pathol Beijing 100021 Peoples R China Chinese Acad Med Sci Canc Hosp Dept Pathol Beijing 100021 Peoples R China Peking Union Med Coll Beijing 100021 Peoples R China Inner Mongolia Med Coll Affiliated Hosp 1 Dept Pathol Hohhot 010059 Inner Mongolia Peoples R China Inner Mongolia Med Coll Renmin Hosp Dept Pathol Hohhot 010059 Inner Mongolia Peoples R China Chinese Acad Med Sci Inst Canc Dept Radiol Beijing 100021 Peoples R China Chinese Acad Med Sci Canc Hosp Dept Radiol Beijing 100021 Peoples R China

AIM: To establish a model for prognosis assessment of extranodal follicular dendritic cell (FDC) ***: Nine lesions were examined by routine and molecular *** factors from the new cases and 97 reported cases were analyzed for their prognostic ***: The current lesions were found in f ive male and four female patients,located mainly in the head and neck area and averaging 7.2 cm in *** patients had recurrence or metastasis and three remained free of *** 106 patients (male/female ratio,1.1:1) were aged from 9 to 82 years (median,44 years).The tumor sizes ranged from 1.5 to 21 cm (mean,7.4 cm).Abdominal/pelvic region was affected most frequently (43%).Surgical resection was performed in 100 patients,followed by radiation and/or chemotherapy in 35 of ***-up data were available in 91 cases,covering a period of 3-324 mo (mean,27 mo;median,19 mo).Of the informative cases,38 (42%) had recurrence or metastasis,and 12 (13%) died of the *** tumors were classif ied histologically into lowand high-grade lesions.A size ≥ 5 cm (P = 0.003),highgrade histology (P = 0.046) and a mitotic count ≥ 5/10 HPF (P = 0.013) were associated with tumor *** lesions were def ined as low-,intermediateand high-risk tumors,and their recurrence rates were 16%,46% and 73%,and their mortality rates 0%,4% and 45%,***: Extranodal FDC tumors behave like soft tissue *** clinical outcomes are variable and can be evaluated according to their sizes and grades.

关键词： Extranodal follicular dendritic cell sarcoma Prognosis assessment Histologic grade Immunohistochemistry In situ hybridization Mutation detection

青海省黄南藏族自治州四区县4～17岁人群先天性心脏病的流行病学调查

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中国心血管病研究 2008年第3期6卷 170-172页

作者：陈秋红王晓勤童有福曲毅祝存奎祁生贵青海省心血管病专科医院心胸外科西宁市810012

目的调查青海省黄南藏族自治州4县4～17岁少年儿童先天性心脏病流行病学特征,以及时发现、诊断先天性心脏病,使确诊患者得到早期治疗。方法对33235名少年儿童按初筛、复筛、彩超多普勒确定三个阶段进行调查。分析病种分布,比较性别及各... 详细信息

目的调查青海省黄南藏族自治州4县4～17岁少年儿童先天性心脏病流行病学特征,以及时发现、诊断先天性心脏病,使确诊患者得到早期治疗。方法对33235名少年儿童按初筛、复筛、彩超多普勒确定三个阶段进行调查。分析病种分布,比较性别及各民族之间的患病差异。结果检出先心病222例,总患病率为6.67‰。女性患病率明显高于男性(x2=18.55,P<0.01)。不同县别之间发病率差异有统计学意义,其中河南县发病率最高,为12.40‰,尖扎4.49‰,同仁6.39‰,泽库6.10‰(x2=30.10,P<0.01),不同民族间患病率差异无统计学意义。CHD的类型前三位分别是房缺41.44%,动脉导管未闭30.63%,室间隔缺损22.07%。结论青海省黄南藏族自治州的CHD以房间隔缺损为主。女性患病率明显高于男性。各民族之间患病率差异无统计学意义。

关键词：心脏病/先天性流行病学调查患病率

A clinical trial of combined use of rosiglitazone and 5-aminosalicylate for ulcerative colitis

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World Journal of Gastroenterology 2008年第1期14卷 114-119页

作者： hong-Liang Liang qin Ouyang Department of Gastroen-terology West China Hospital Sichuan University Chengdu610041 Sichuan Province China

AIM: To investigate the therapeutic effects of the combined use of rosiglitazone and aminosalicylate on mild or moderately active ulcerative colitis (UC).METHODS: According to the national guideline for diagnosis and treatment of inflammatory bowel disease (IBD) in China, patients with mild or moderately active UC in our hospital were selected from July to November, 2004. Patients with infectious colitis, amoebiasis, or cardiac, renal or hepatic failure and those who had received corticosteroid or immunosuppressant treatment within the last month were excluded. Following a quasi-randomization principle, patients were allocated alternatively into the treatment group (TG) with rosiglitazone 4 mg/d plus 5-ASA 2 g/d daily or the control group (CG) with 5-ASA 2 g/d alone, respectively, for 4 wk. Clinical changes were evaluated by Mayo scoring system and histological changes by Truelove-Richards' grading system at initial and final point of ***: Forty-two patients completed the trial, 21 each in TG and CG. The Mayo scores in TG at initial and final points were 5.87 (range: 4.29-7.43) and 1.86 (range: 1.03-2.69) and those in CG were 6.05 (range: 4.97-7.13) and 2.57 (range: 1.92-3.22) respectively. The decrements of Mayo scores were 4.01 in TG and 3.48 in CG, with a remission rate of 71.4% in TG and 57.1% in CG, respectively. Along with the improvement of disease activity index (DAI), the histological grade improvement was more significant in TG than in CG (P < 0.05).CONCLUSION: Combined treatment with rosiglitazone and 5-ASA achieved better therapeutic effect than 5-ASA alone without any side effects. Rosiglitazone can alleviate colonic inflammation which hopefully becomes a novel agent for UC treatment.

关键词： Peroxisome proliferators-activated receptor γ Rosiglitazone Ulcerative colitis

REVERSE ATOM TRANSFER RADICAL POLYMERIZATION OF STYRENE WITH COPPER-BASED CATALYST

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Chinese Journal of Polymer Science 2001年第1期19卷 59-64页

作者： Dong-qi qin Shu-hui qin Kun-yuan qiu Department of Polymer Science and Engineering College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China Department of Polymer Science and Engineering College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China Department of Polymer Science and Engineering College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China

'Living'/controlled radical polymerization of styrene was carried out with diethyl 2,3-dicyano-2,3-diphenylsuccinate (DCDPS)/CuCl2/bipyridine (bipy) initiation system at 120 degreesC. The molecular weights of resultant PSt increased with the monomer conversion and the polydispersities were in the range of 1.37 similar to1.52. A linear ln([M](o)/[M]) versus time plot was also obtained indicating the constant concentration of growing radicals during the polymerization with this initiation system. End group analysis by H-1-NMR spectroscopic studies showed that the end groups of the polymer obtained is omega -functionalized by a chlorine group from the catalyst and alpha -functionalized by a (carbethoxy-cyano-phenyl)methyl group from the fragments of the initiator. Having CI atom at the chain end, the PSt obtained can be used as a macroinitiator to promote a chain-extension reaction with fresh St and block copolymerization reaction with a second monomer, such as methyl methacrylate, in the presence of CuCl/bipy catalyst via a conventional ATRP process.

关键词： 'living'/controlled radical polymerization reverse ATRP styrene DCDPS/CuCl2/bipy initiation system

Uniformity in Double Designs

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Acta Mathematicae Applicatae Sinica 2014年第3期30卷 773-780页

作者： Yi-ju LEI hong qin Department of Mathematics Xinxiang University Faculty of Mathematics and Statistics Central China Normal University

In constructing two-level fractional factorial designs, the so-called doubling method has been employed. In this paper, we study the problem of uniformity in double designs. The centered L2-discrepancy is employed as a measure of uniformity. We derive results connecting the centered L2-discrepancy value of D（X） and generalized wordlength pattern of X, which show the uniformity relationship between D（X） and X. In addition, we also obtain lower bounds of centered L2-discrepancy value of D（X）, which can be used to assess uniformity of D（X）.

关键词： double design generalized wordlength pattern uniform design uniformity pattern

Neutralization of SARS-CoV-2 pseudovirus using ACE2-engineered extracellular vesicles

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Acta Pharmaceutica Sinica B 2022年第3期12卷 1523-1533,F0004页

作者： Canhao Wu qin Xu Huiyuan Wang Bin Tu Jiaxin Zeng Pengfei Zhao Mingjie Shi hong qiu Yongzhuo Huang Artemisinin Research Center First Clinical SchoolGuangzhou University of Chinese MedicineGuangzhou 510450China State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China Zhongshan Institute for Drug Discovery SIMMCASZhongshan 528437China Center of Clinical Pharmacology The Second Affiliated Hospital of Zhejiang UniversitySchool of MedicineHangzhou 310009China NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients Shanghai 201203China Taizhou University School of Advanced StudyInstitute of Natural Medicine and Health ProductTaizhou 318000China

The spread of coronavirus disease 2019(COVID-19)throughout the world has resulted in stressful healthcare burdens and global health *** an effective measure to protect people from infection is an urgent *** blockage of interaction between angiotensin-converting enzyme 2(ACE2)and S protein is considered an essential target for anti-severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)drugs.A full-length ACE2 protein could be a potential drug to block early entry of SARS-Co V-2 into host *** this study,a therapeutic strategy was developed by using extracellular vesicles(EVs)with decoy receptor ACE2 for neutralization of SARS-Co *** EVs embedded with engineered ACE2(EVs-ACE2)were prepared;the EVs-ACE2 were derived from an engineered cell line with stable ACE2 *** potential effect of the EVs-ACE2 on anti-SARS-Co V-2 was demonstrated by both in vitro and in vivo neutralization experiments using the pseudovirus with the S protein(S-pseudovirus).EVs-ACE2 can inhibit the infection of S-pseudovirus in various cells,and importantly,the mice treated with intranasal administration of EVs-ACE2 can suppress the entry of S-pseudovirus into the mucosal ***,the intranasal EVs-ACE2 could be a preventive medicine to protect from SARS-Co V-2 *** EVs-based strategy offers a potential route to COVID-19 drug development.

关键词： SARS-CoV-2 COVID-19 Spike protein Pseudovirus Extracellular vesicles ACE2 Intranasal administration Neutralization