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A Comprehensive Pipeline for Complex Text-to-Image Synthesis

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Journal of Computer Science & Technology 2020年第3期35卷 522-537页

作者： Fei Fang Fei Luo hong-Pan Zhang Hua-Jian Zhou Alix L.H.Chow chun-xia xiao School of Computer Science Wuhan UniversityWuhan 430072China xiaomi Technology Co.LTD Beijing 100085China

Synthesizing a complex scene image with multiple objects and background according to text description is a challenging *** needs to solve several difficult tasks across the fields of natural language processing and computer *** model it as a combination of semantic entity recognition,object retrieval and recombination,and objects’status *** reach a satisfactory result,we propose a comprehensive pipeline to convert the input text to its visual *** pipeline includes text processing,foreground objects and background scene retrieval,image synthesis using constrained MCMC,and ***,we roughly divide the objects parsed from the input text into foreground objects and background ***,we retrieve the required foreground objects from the foreground object dataset segmented from Microsoft COCO dataset,and retrieve an appropriate background scene image from the background image dataset extracted from the ***,in order to ensure the rationality of foreground objects’positions and sizes in the image synthesis step,we design a cost function and use the Markov Chain Monte Carlo(MCMC)method as the optimizer to solve this constrained layout ***,to make the image look natural and harmonious,we further use Poisson-based and relighting-based methods to blend foreground objects and background scene image in the post-processing *** synthesized results and comparison results based on Microsoft COCO dataset prove that our method outperforms some of the state-of-the-art methods based on generative adversarial networks(GANs)in visual quality of generated scene images.

关键词： image synthesis scene generation text-to-image conversion Markov Chain Monte Carlo(MCMC)

Cathepsin B protease is required for metamorphism in silkworm, Bombyx moil

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Insect Science 2008年第3期15卷 201-208页

作者： Gen-hong Wang chun Liu Qing-You xia Xing-Fu Zha Jie Chen Liang Jiang Key Sericultural Laboratory of the Agricultural Ministry College of Biotechnology Southwest University Chongqing China

Cathepsin B belongs to lysosomal cysteine protease of the papain family. Temporal and spatial expression analysis of cathepsin B of Bombyx mori （BmCtB） was carried out based on Expression Sequence Tags （ESTs） data, oligonucleotide microarray, reverse transcription polymerase chain reaction （RT-PCR） and quantitative real-time PCR. Expression of BmCtB was observed in all of the tissues and stages. Among the 10 tested tissues, the fat body and posterior silk gland are the two most enriched tissues with BmCtB. During Bombyx development, there was an expression fastigium of BmCtB during metamorphosis. RNA interference was used to suppress the expression of cathepsin B during metamorphosis. Significant developmental defective phenotypes were obtained in the RNAi treated group. The dramatically reduced expression of BmCtB was con^rmed by Northern blot and quantitative real-time PCR. These evidences strongly suggest cathepsin B proteinase was predominantly involved in the metabolism process of fat body and the posterior silk gland and was critical for metamorphism and development of silkworm, Bombyx mori.

关键词： cathepsin B RNA interference quantitative real-time PCR Bombyx mori

Sub-nanometer supramolecular rectifier based on the symmetric building block with destructive σ-interference

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Science China Chemistry 2021年第8期64卷 1426-1433页

作者： Longfeng Huang Yu Zhou Yaorong Chen Jingyao Ye Junyang Liu Zongyuan xiao chun Tang Haiping xia Wenjing hong State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China Shenzhen Grubbs Institute Department of ChemistrySouthern University of Science and TechnologyShenzhen518055China

Molecular rectifier, as a basic function of molecular electronic devices, has attracted extensive attention for the opportunity in constructing sub-nanometer electronic devices. However, tunneling leakage current has a significant contribution as electronic devices shrink in size, which leads to a challenge in fabricating molecular rectifiers at the sub-nanometer scale. Here, we experimentally demonstrate a sub-nanometer molecular rectifier based on the supramolecular junction assembled between water and 1,4-diazabicyclo[2.2.2]octane (DABCO) molecule. The charge transport through DABCO and corresponding supramolecular junctions exhibits destructive σ-interference, ensuring a sharp conductance variation for transmission modulation. The supramolecular interaction between DABCO and water readily introduces the asymmetric electrode-molecule interaction, which combines with the destructive σ-interference to support the sub-nanometer rectification.

关键词： electron transport single-molecule studies conducting material molecular devices quantum interference

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Recursive Least Squares Semi-blind Beamforming for MIMO Using Decision Directed Adaptation and Constant Modulus Criterion

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International Journal of Automation and computing 2017年第4期14卷 442-449页

作者： xia hong Sheng Chen Department of Computer Science School of Mathematical Physical and Computational Sciences University of Reading Reading RG6 6AY UK School of Electronics and Computer Science University of Southampton Southampton SO17 1B J UK King Abdulaziz University Jeddah 21589 Saudi Arabia

A new semi-blind adaptive beamforming scheme is proposed for multi-input multi-output （MIMO） induced and spacedivision multiple-access based wireless systems that employ high order phase shift keying signaling. A minimum number of training symbols, very close to the number of receiver antenna elements, are used to provide a rough initial least squares estimate of the beamformer＇s weight vector. A novel cost function combining the constant modulus criterion with decision-directed adaptation is adopted to adapt the beamformer weight vector. This cost function can be approximated as a quadratic form with a closed-form solution, based on which we then derive the recursive least squares （RLS） semi-blind adaptive beamforming algorithm. This semi-blind adaptive beamforming scheme is capable of converging fast to the minimum mean-square-error beamforming solution, as demonstrated in our simulation study. Our proposed semi-blind RLS beamforming algorithm therefore provides an efficient detection scheme for the future generation of MIMO aided mobile communication systems.

关键词： Multi-input multi-output (MIMO) space-division multiple-access beamforming semi-blind adaptive algorithm constant modulus criterion decision-directed adaption.

Percutaneous transhepatic cholangioscopy-assisted biliary polypectomy for local palliative treatment of intraductal papillary neoplasm of the bile duct

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 1821-1832页

作者： Xu Ren Yong-Ping Qu chun-Lan Zhu xiao-hong Xu hong Jiang Yi-xia Lu hong-Peng Xue Digestive Disease Hospital of Heilongjiang Provincial Hospital Heilongjiang Provincial Clinical Medical Research Center for Minimally Invasive Diagnosis and Treatment of Pancreaticobiliary DiseasesHarbin 150001Heilongjiang ProvinceChina Digestive Endoscopy Center of Heilongjiang Provincial Hospital Heilongjiang Provincial Clinical Medical Research Center for Minimally Invasive Diagnosis and Treatment of Pancreaticobiliary DiseasesHarbin 150001Heilongjiang ProvinceChina Second Department of Gastroenterology Digestive Disease Hospital of Heilongjiang Provincial Hospitaland Heilongjiang Provincial Clinical Medical Research Center for Minimally Invasive Diagnosis and Treatment of Pancreaticobiliary DiseasesHarbin 150001Heilongjiang ProvinceChina Department of Pathology Heilongjiang Provincial HospitalHarbin 150001Heilongjiang ProvinceChina

BACKGROUND Intraductal papillary neoplasm of the bile duct(IPNB)is a premalignant biliarytype epithelial neoplasm with intraductal papillary or villous *** reported local palliative therapeutic modalities,including endoscopic nasobiliary drainage,stenting and biliary curettage,endoscopic biliary polypectomy,percutaneous biliary drainage,laser ablation,argon plasma coagulation,photodynamic therapy,and radiofrequency ablation to relieve mechanical obstruction are limited with weaknesses and *** have applied percutaneous transhepatic cholangioscopy(PTCS)-assisted biliary polypectomy(PTCS-BP)technique for the management of IPNB including mucin-hypersecreting cast-like and polypoid type tumors since *** To assess the technical feasibility,efficacy,and safety of PTCS-BP for local palliative treatment of *** Patients with mucin-hypersecreting cast-like or polypoid type IPNB and receiving PTCS-BP between September 2010 and December 2019 were ***-BP was performed by using a half-moon type snare with a soft stainless-steel wire,and the tumor was snared and resected with *** primary outcome was its feasibility,indicated by technical *** secondary outcomes were efficacy,including therapeutic success,curative resection,and clinical success,and *** Five patients(four with mucin-hypersecreting cast-like type and one with polypoid type IPNB)were ***-and high-grade intraepithelial neoplasia(HGIN)and recurrent IPNB with invasive carcinoma were observed in one,two,and two patients,*** cholangitis and/or obstructive jaundice were presented in all four patients with mucin-hypersecreting cast-like type *** five patients achieved technical success of *** patients(three with mucin-hypersecreting cast-like type and one with polypoid type IPNB)obtained therapeutic success;one with mucin-hypersecreting cast-like type tumors in the intrahepatic small bile duct and HGIN h

关键词： Intraductal papillary neoplasm of the bile duct Percutaneous transhepatic cholangioscopy Biliary polypectomy Feasibility Efficacy

Abrupt change of winter temperature over the Mongolian Plateau during 1961-2017

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Journal of Mountain Science 2023年第4期20卷 996-1009页

作者： xia Ying-ying chun Xi DAN Dan LIU hong-yu ZHOU Hai-jun WAN Zhi-qiang Inner Mongolia Restoration Engineering Laboratory of Wetland Eco-environment System Inner Mongolia Normal UniversityHohhot010022China Key Laboratory of Mongolian Plateau’s Climate System Inner Mongolia Normal UniversityHohhot010022China College of Geographical Science Inner Mongolia Normal UniversityHohhot010022China College of Resources and Environment Baotou Teachers’CollegeBaotou014030China

Studying the abrupt change of winter temperature(ACWT)over the Mongolian Plateau(MP,including Inner Mongolia Autonomous Region and State of Mongolia)is of great significance for understanding the spatiotemporal distribution of temperature and the mechanism of global climate *** temperature data during 1961–2017was collected,and the abrupt change point was determined by the Mann–Kendall test and sliding ttest,to analyze the characteristics and causes of *** results showed that(a)The winter temperature has rapidly increased with a trend of 0.41℃/10a,which was significantly higher than that of the rest area of Chinese mainland,indicating that climate change in the MP was more sensitive to global warming.(b)The abrupt change point occurred in 1988,with temperature of-15.5℃and-14.1℃before and after abrupt change,*** ACWT in 50°N was 1–3 years later than that in 40°N,and the isotherms of different temperatures moved northward by 10–200 km,especially-16℃isotherms moved approximately 200 km northward after 1988.(c)The Arctic Oscillation(AO)and Mongolian High(MH)anomaly affects winter temperature over the *** the AO is unusually strong,the MH and East Asian winter monsoon are weak,and southerly winds prevail in most regions,which is not conducive to the cold air developing southward,leading to higher winter temperature in the ***,abnormally northerly winds prevail and temperature is ***,the abrupt change time of AO occurred in 1987 before winter *** shows that the AO indirectly causes winter temperatures to rise by influencing the MH and is also the main driving factor of ACWT.

关键词： Abrupt temperature change Spatiotemporal distribution Arctic Oscillation Winter temperature Mongolian Plateau

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转化生长因子β在肺癌组织中表达的意义

山东医科大学学报 2001年第2期39卷 119-120,123页

作者：王春霞王洪云李怀臣雷茂禄山东省立医院中心实验室山东胸科医院山东省立医院呼吸内科

目的 :研究肺癌组织中转化生长因子 β(TGF β1、TGF β2 )与肺癌发生、淋巴结转移之间的关系。方法 :用SABC免疫组化染色法检测 84例肺癌组织标本中TGF β的表达。结果 :肺癌组织中TGF β1、TGF β2 表达显著高于正常肺组织 (P <0 .0 ... 详细信息

目的 :研究肺癌组织中转化生长因子 β(TGF β1、TGF β2 )与肺癌发生、淋巴结转移之间的关系。方法 :用SABC免疫组化染色法检测 84例肺癌组织标本中TGF β的表达。结果 :肺癌组织中TGF β1、TGF β2 表达显著高于正常肺组织 (P <0 .0 1) ;有淋巴结转移和Ⅲ期肺癌的表达显著高于无淋巴结转移和Ⅰ期 +Ⅱ期肺癌 (P <0 .0 5)。结论 :TGF β与肺癌的发生、发展、转移密切相关。

关键词：肺肿瘤转化生长因子免疫组织化学肺癌

[O-(4-乙氧基)-丁基]-小檗胺诱导肺癌细胞凋亡的初探

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山西师范大学学报（自然科学版） 2001年第4期15卷 55-58页

作者：段江燕袁丽环刘胡艳杨春霞张金红山西师范大学生物系山西临汾041004 南开大学分子生物学研究所天津300071

过去的研究表明 ,作为新型半天然钙调蛋白拮抗剂的小檗胺衍生物 (O- 4- Ethoxyl-Butyl- Berbamine) EBB,无论是在体内 ,还是在体外都具有显著的强抑制肿瘤细胞和对正常细胞毒性小的特点 .但就 EBB使细胞死亡的方式未进行深入的研究 ,本... 详细信息

过去的研究表明 ,作为新型半天然钙调蛋白拮抗剂的小檗胺衍生物 (O- 4- Ethoxyl-Butyl- Berbamine) EBB,无论是在体内 ,还是在体外都具有显著的强抑制肿瘤细胞和对正常细胞毒性小的特点 .但就 EBB使细胞死亡的方式未进行深入的研究 ,本文就 EBB诱导人肺癌细胞 (PG)进行了初探 ,从电泳图谱出现的 6 0 0 bp～ 80 0 bp之间的一条带说明 ,EBB诱导 PG-cell凋亡且诱导凋亡的过程中 ,还存在其他的生化反应 ,有待人们进一步的研究与探讨 .

关键词：细胞凋亡梯状图谱肺癌 [0-(4-乙氧基)-丁基]-小檗胺肿瘤治疗肿瘤抑制机制

A pilot-scale study of selective desulfurization via urea addition in iron ore sintering

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International Journal of Minerals,Metallurgy and Materials 2016年第11期23卷 1239-1243页

作者： hong-ming Long Xue-jian Wu Tie-jun chun Zhan-xia Di Ping Wang Qing-min Meng School of Metallurgical Engineering Anhui University of Technology

The iron ore sintering process is the main source of SO_2 emissions in the iron and steel industry. In our previous research, we proposed a novel technology for reducing SO_2 emissions in the flue gas in the iron ore sintering process by adding urea at a given distance from the sintering grate bar. In this paper, a pilot-scale experiment was carried out in a commercial sintering plant. The results showed that, compared to the SO_2 concentration in flue gas without urea addition, the SO_2 concentration decreased substantially from 694.2 to 108.0 mg/m^3 when 0.10wt% urea was added. NH_3 decomposed by urea reacted with SO_2 to produce（NH_4）_2SO_4, decreasing the SO_2 concentration in the flue gas.

关键词： iron ore sintering urea flue gas desulphurization