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Removal of Nitrogen, Phosphorus, and Organic Pollutants From Water Using Seeding Type Immobilized Microorganisms

Biomedical and Environmental sciences 2008年第2期21卷 150-156页

作者： LIN WANG LI-JING HUANG luo-JIA YUN FEI TANG JING-HUI ZHAO YAN-QUN LIU XIN zeng {2.-FANG luo Institute of Environmental Medicine School of Public Health Tongji Medical College Huazhong University of Science ＆ Technology MOE Key Laboratory of Environment and Health Wuhan 430030 Hubei China

Objective To study the possibility of removing nitrogen, phosphorus, and organic pollutants using seeding type immobilized microorganisms. Methods Lakes P and M in Wuhan were chosen as the objects to study the removal of nitrogen, phosphorus, and organic pollutants with the seeding type immobilized microorganisms. Correlations between the quantity of heterotrophic bacteria and the total nitrogen （TN）, total phosphorus （TP）, and total organic carbon （TOC） in the two lakes were studied. The dominant bacteria were detected, inoculated to the sludge and acclimated by increasing nitrogen, phosphorus and decreasing carbon source in an intermittent, time-controlled and fixed-quantity way. The bacteria were then used to prepare the seeding type immobilized microorganisms, selecting diatomite as the adsorbent cartier. The ability and influence factors of removing nitrogen, phosphorus, and organic pollutant from water samples by the seeding type immobilized microorganisms were studied. Results The coefficients of the heterotrophic bacterial quantity correlated with TOC, TP, and TN were 0.9143. 0.82.9, 0.7954 in Lake P and 0.9168, 0.7187, 0.602. in Lake M. Ten strains of dominant heterotrophic bacteria belonging to Pseudomonas, Coccus, Aeromonas, Bacillus, and Enterobateriaceae, separately, were isolated. The appropriate conditions for the seeding type immobilized microorgansims in purifying the water sample were exposure time=2. h, pH=7.0-8.0, and quantity of the immobilized microorganisms=0.75-1g/50 mL. The removal rates of TOC, TP, and TN under the above conditions were 80.2., 81.6%, and 86.8%, respectively. Conclusion The amount of heterotrophic bacteria in the two lakes was correlated with TOC, TP, and TN. These bacteria could be acclimatized and prepared for the immobilized microorganisms which could effectively remove nitrogen, phosphorus, and mixed organic pollutants in the water sample.

关键词： Heterotrophic bacteria Acclimation Immobilized microorganisms Nitrogen Phosphorus Mixed organic pollutants

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Phase-matching-induced near-chirp-free solitons in normal-dispersion fiber lasers

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Light(science & Applications) 2022年第2期11卷 230-241页

作者： Dong Mao Zhiwen He Yusong Zhang Yueqing Du Chao zeng Ling Yun Zhichao {2. Tijian Li Zhipei Sun Jianlin Zhao Key Laboratory of Light Field Manipulation and information Acquisition Ministry of Industry and Information TechnologySchool of Physical Science and TechnologyNorthwestern Polytechnical University710129 Xi’anChina college of Electronic and Optical Engineering&college of Microelectronics Nanjing University of Posts and Telecommunications210046 NanjingChina Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices&Guangzhou Key Laboratory for Special Fiber Photonic Devices and Applications South China Normal University510006 GuangzhouChina Department of Electronics and Nanoengineering and QTF Centre of Excellence Aalto UniversityAaltoFinland

Direct generation of chirp-free solitons without external compression in normal-dispersion fiber lasers is a long-term challenge in ultrafast *** demonstrate near-chirp-free solitons with distinct spectral sidebands in normaldispersion hybrid-structure fiber lasers containing a few meters of polarization-maintaining *** bandwidth and duration of the typical mode-locked pulse are 0.74 nm and 1.95 ps,respectively,giving the time-bandwidth product of 0.41 and confirming the near-chirp-free *** results and theoretical analyses fully reproduce and interpret the experimental observations,and show that the fiber birefringence,normal-dispersion,and nonlinear effect follow a phase-matching principle,enabling the formation of the near-chirp-free ***,the phasematching effect confines the spectrum broadened by self-phase modulation and the saturable absorption effect slims the pulse stretched by normal *** pulse is termed as birefringence-managed soliton because its two orthogonal-polarized components propagate in an unsymmetrical“X”manner inside the polarization-maintaining fiber,partially compensating the group delay difference induced by the chromatic dispersion and resulting in the selfconsistent *** property and formation mechanism of birefringence-managed soliton fundamentally differ from other types of pulses in mode-locked fiber lasers,which will open new research branches in laser physics,soliton mathematics,and their related applications.

关键词： fiber polarization dispersion

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联合CPD面向复杂场景的自适应激光SLAM算法

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计算机系统应用 2024年第9期33卷 164-173页

作者：孙伟叶健峰张小瑞郭邦祺曾豪霆南京信息工程大学自动化学院南京210044 南京工业大学计算机与信息工程学院南京211816 南京信息工程大学江苏省大气环境与装备技术协同创新中心南京210044 南京信息工程大学电子与信息工程学院南京210044

激光点云匹配是影响激光SLAM系统精度和效率的关键因素.传统激光SLAM算法无法区分场景结构,且在非结构化场景下由于特征提取不佳而出现性能退化.为此,提出一种联合CPD(coherent point drift)面向复杂场景的自适应激光SLAM算法CPD-LOAM.... 详细信息

激光点云匹配是影响激光SLAM系统精度和效率的关键因素.传统激光SLAM算法无法区分场景结构,且在非结构化场景下由于特征提取不佳而出现性能退化.为此,提出一种联合CPD(coherent point drift)面向复杂场景的自适应激光SLAM算法CPD-LOAM.该算法提出一种基于预判和验证相结合的场景结构辨识方法,首先引入场景特征变量对场景结构进行初步判断,然后从几何特征角度通过表面曲率对其进行验证,增强对场景结构辨识的准确性.此外,在非结构化场景下添加CPD算法进行点云预配准,进而利用ICP算法进行再配准,解决该场景下的特征退化问题,从而提高点云配准的精度和效率.实验结果表明,提出的场景特征变量以及表面曲率可以根据设置的阈值有效地区分场景结构,在公开数据集KITTI上的验证结果显示,CPD-LOAM较LOAM算法定位误差降低了84.47%,相较于LeGO-LOAM与LIO-SAM算法定位精度也分别提升了55.88%和3..52.,且具有更高的效率和鲁棒性.

关键词：激光SLAM 场景结构相干点漂移(CPD) 自适应

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Genome-wide identification of cancer-related polyadenylated and non-polyadenylated RNAs in human breast and lung cell lines

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science china(Life sciences) 2013年第5期56卷 503-512,1-4页

作者： ZHAO GuoGuang JIAO Fei liao qi {2. HaiTao LI Hui SUN Liang BU DeChao YU KunTao ZHAO Yi CHEN RunSheng Bioinformatic Research Group Key Laboratory of Intelligent Information ProcessingAdvanced Computing Research LaboratoryInstitute of Computing TechnologyChinese Academy of Sciences University of Chinese Academy of sciences Department of Biochemistry and Molecular Biology Binzhou Medical College Department of Preventive Medicine School of MedicineNingbo University college of Computer science and {2. Jilin University Bioinformatics Laboratory and National Laboratory of Biomacromolecules Institute of BiophysicsChinese Academy of SciencesBeijing 100101China

Eukaryotic mRNAs consist of two forms of transcripts:poly(A)+ and poly(A),based on the presence or absence of poly(A) tails at the 3.***(A)+ mRNAs are mainly protein coding mRNAs,whereas the functions of poly(A) mRNA are largely *** studies have shown that a significant proportion of gene transcripts are poly(A) or bimorphic(containing both poly(A)+ and poly(A) transcripts).We compared the expression levels of poly(A) and poly(A)+ RNA mRNAs in normal and cancer cell *** also investigated the potential functions of these RNA transcripts using an integrative workflow to explore poly(A)+ and poly(A) transcriptome sequences between a normal human mammary gland cell line(HMEC) and a breast cancer cell line(MCF-7),as well as between a normal human lung cell line(NHLF) and a lung cancer cell line(A549).The data showed that normal and cancer cell lines differentially express these two forms of *** ontology(GO) annotation analyses hinted at the functions of these two groups of transcripts and grouped the differentially expressed genes according to the form of their *** data showed that cell cycle-,apoptosis-,and cell death-related functions corresponded to most of the differentially expressed genes in these two forms of transcripts,which were also associated with the ***,translational elongation and translation functions were also found for the poly(A) protein-coding genes in cancer cell *** demonstrate that poly(A) transcripts play an important role in cancer development.

关键词： polyadenylation non-polyadenylation function annotation high throughput sequencing cancer bioinformatics

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米香型毛葡萄配制酒的开发及品质分析

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中国酿造 2024年第6期43卷 218-224页

作者：郝俊光莫维侯慧杨金海唐越庞庭才韦木兰祁岑罗东伟北部湾大学食品工程学院广西高校北部湾海产品高值化利用与预制食品重点实验室广西钦州535011 北部湾大学食品工程学院钦州市食品风味分析与调控重点实验室广西钦州535011 广西大学轻工与食品工程学院广西南宁535000 罗城仫佬族自治县科技情报研究所广西河池546400 广西大益生态食品有限公司广西河池546400

为拓宽罗城毛葡萄深加工方式,充分利用广西米香型白酒资源,该试验开发了一款米香型毛葡萄配制酒。通过色泽对比试验确定终止毛葡萄果酒发酵的米香型白酒的添加比例为果酒(11%vol)∶米香型白酒(70%vol)=2.∶3.(V/V),此时混合酒液的酒精度... 详细信息

为拓宽罗城毛葡萄深加工方式,充分利用广西米香型白酒资源,该试验开发了一款米香型毛葡萄配制酒。通过色泽对比试验确定终止毛葡萄果酒发酵的米香型白酒的添加比例为果酒(11%vol)∶米香型白酒(70%vol)=2.∶3.(V/V),此时混合酒液的酒精度为44%vol,将其陈化后作为配制酒的基酒。以感官评分为响应值,进行单因素和响应面试验,得到配制酒的优化配方为基酒57.0%、纯净水3..0%、香草精0.03.、毛葡萄汁3.0%(V/V)、蔗糖67.0 g/L。所得米香型毛葡萄配制酒酸甜适口、果香甜香浓郁,酒体色泽鲜红,酒精度为2.%vol、总酸含量为3.4 g/L、总糖含量为87.0 g/L、花色苷含量为48.4 mg/L,感官评分为86.2.分。共检出2.种香气物质、10种有机酸、14种酚类物质及5种氨基酸。该产品的开发可为毛葡萄和米香型白酒产业的健康发展提供了新动力。

关键词：毛葡萄米香型白酒配制酒响应面法高效液相色谱气相色谱-质谱联用

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广西沃柑果实横径生长动态及模型构建

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果树学报 2024年第4期41卷 764-776页

作者：黄其椿汪妮娜黄燕晓张海平黄爱星谭颂玥韦正林梁增韦琮韦炳安陈亮罗增桂胡承孝陈东奎覃泽林曾志康广西壮族自治区农业科学院园艺研究所南宁530007 华中农业大学资源与环境学院武汉430070 桂林市农业科学研究中心桂林541006 广西南宁市武鸣区气象局南宁530199 广西鸣鸣果业有限公司南宁530199 广西桂洁农业开发有限公司南宁530041 广西来宾市红河农场有限公司广西来宾546100 广西金竹坡农业科技有限公司南宁530047 广西南宁市武鸣嘉沃农业专业合作社南宁530104 广西起凤橘洲生态农业有限公司南宁530199 国家种质资源武鸣观测站南宁530107 广西壮族自治区农业科学院农业科技信息研究所南宁530007

【目的】研究广西沃柑果实横径的生长动态并构建数学模型,为提升其品质和产量提供科学依据。【方法】以沃柑为材料,于稳果后,连续两年每月1日、15日通过“定园、定点、定果、定期”的方法测量并记录广西桂南、桂中、桂北15个果园的沃柑... 详细信息

【目的】研究广西沃柑果实横径的生长动态并构建数学模型,为提升其品质和产量提供科学依据。【方法】以沃柑为材料,于稳果后,连续两年每月1日、15日通过“定园、定点、定果、定期”的方法测量并记录广西桂南、桂中、桂北15个果园的沃柑横径数据,直至采收期,研究沃柑横径的变化动态,考察年终横径与各生长节点,月度横径增加值与主要气象信息的相关性并建立数学模型。【结果】各个果园最终的横径差别较大,达到极显著差异水平,多个果园的横径有待提升;对比气象数据,选定2.2.—2.2.年度的沃柑横径数据为正常年份数据,翌年1月15日果实横径平均值为69.85 mm,最高的果园达75.3. mm,最小的61.55 mm;以80、75、70、65、60、55 mm为等级,构建桂南、桂北和桂中沃柑果实横径生长动态对照表、横径月度增加值对照表;分别建立年终沃柑横径数值与各生长节点,横径月度增加值与主要月度气象信息的数学模型,年终横径与7月15日呈显著正相关,与8月15日以后呈极显著正相关,至11月1日达到极显著的0.93. 0;月度增加值与降雨、温度相关系数分别为显著的0.791 8和极显著的0.879 1。【结论】广西沃柑提质增产仍存在较大空间,可结合当期横径生长对照表、定期差值对照表,科学合理安排水肥药的灌溉来进一步加速果实膨大,从而提升效益。

关键词：柑橘广西沃柑果实横径生长动态数学模型

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On 3. face reconstruction via cascaded regression in shape space

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Frontiers of information technology & Electronic Engineering 2017年第12期18卷 1978-1990页

作者： Feng LIU Dan zeng Jing LI qi-jun ZHAO college of Computer science Sichuan University Chengdu 610065 China

Cascaded regression has been recently applied to reconstruct 3. faces from single 2. images directly in shape space, and has achieved state-of-the-art performance. We investigate thoroughly such cascaded regression based 3. face reconstruction approaches from four perspectives that are not well been studied：（1） the impact of the number of 2. landmarks; （2. the impact of the number of 3. vertices; （3. the way of using standalone automated landmark detection methods; （4） the convergence property. To answer these questions, a simplified cascaded regression based 3. face reconstruction method is devised. This can be integrated with standalone automated landmark detection methods and reconstruct 3. face shapes that have the same pose and expression as the input face images, rather than normalized pose and expression. An effective training method is also proposed by disturbing the automatically detected landmarks. Comprehensive evaluation experiments have been carried out to compare to other 3. face reconstruction methods. The results not only deepen the understanding of cascaded regression based 3. face reconstruction approaches, but also prove the effectiveness of the proposed method.

关键词： 3. face reconstruction Cascaded regressor Shape space Real-time

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A modified analytical model of the alkali-metal atomic magnetometer employing longitudinal carrier field

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Chinese Physics B 2021年第5期30卷 302-311页

作者： Chang Chen Yi Zhang Zhi-Guo Wang † qi-Yuan Jiang Hui luo Kai-Yong Yang college of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China Interdisciplinary Center for Quantum information National University of Defense TechnologyChangsha 410073China

Alkali-metal atomic magnetometers employing longitudinal carrier magnetic field have ultrahigh sensitivity to measure transverse magnetic fields and have been applied in a variety of precise-measurement science and *** practice,the magnetometer response is not rigorously proportional to the measured transverse magnetic fields and the existing fundamental analytical model of this magnetometer is effective only when the amplitudes of the measured fields are very *** this paper,we present a modified analytical model to characterize the practical performance of the magnetometer more *** find out how the longitudinal magnetization of the alkali metal atoms vary with larger transverse *** linear-response capacity of the magnetometer is determined by these factors:the amplitude and frequency of the longitudinal carrier field,longitudinal and transverse spin relaxation time of the alkali spins and rotation frequency of the transverse *** give a detailed and rigorous theoretical derivation by using the perturbation-iteration method and simulation experiments are conducted to verify the validity and correctness of the proposed modified *** model can be helpful for measuring larger fields more accurately and configuring a desirable magnetometer with proper linear range.

关键词： alkali-metal atomic magnetometer longitudinal carrier magnetic field linear-response capacity

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Measurement of solar pp neutrino flux using electron recoil data from PandaX-4T commissioning run

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Chinese Physics C 2024年第9期48卷 1-7,300页

作者： Xiaoying Lu Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Zhaokan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Lisheng Geng Karl Giboni Xuyuan Guo Chencheng Han Ke Han Changda He Jinrong He Di Huang Junting Huang Zhou Huang Ruquan Hou Yu Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shuaijie Li Tao Li qing Lin Jianglai Liu Congcong Lu Lingyin {2. Yunyang {2. Wenbo Ma Yugang Ma Yajun Mao Yue Meng Xuyang Ning Binyu Pang Ningchun qi Zhicheng qian Xiangxiang Ren Nasir Shaheed Xiaofeng Shang Xiyuan Shao Guofang Shen Manbin Shen Lin Si Wenliang Sun Yi Tao Anqing Wang Meng Wang qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Xu Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Yuan Wu Mengjiao Xiao Xiang Xiao Kaizhi Xiong Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Ying Yuan Zhe Yuan Youhui Yun Xinning zeng Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Wei Zhang Yang Zhang Yingxin Zhang Yuanyuan Zhang Li Zhao Jifang Zhou Ning Zhou Xiaopeng Zhou Yubo Zhou Zhizhen Zhou Research Center for Particle science and technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237China School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China New Cornerstone science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China Jinping Deep Underground Frontier science and Dark Matter Key Laboratory of Sichuan Province Liangshan 615000China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and technology Sun Yat-Sen UniversityZhuhai 519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Beihang UniversityBeijing 102206China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 102206China Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Southern Center for Nuclear-science Theory(SCNT) Institute of Modern PhysicsChinese Academy of SciencesHuizhou 516000China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Peking UniversityBeijing 100871Ch

The proton-proton(pp)fusion chain dominates the neutrino production in the *** uncertainty of the predicted pp neutrino flux is at the sub-percent level,whereas that of the best measurement is O(10%).In this study,for the first time,we measure solar pp neutrinos in the electron recoil energy range from 2. to 144 keV using the PandaX-4T commissioning data with 0.63.tonne×year *** pp neutrino flux is determined as(8.0±3.9(stat)±10.0(syst))×1010 s^(-1)cm^(-2.,which is consistent with the Standard Solar Model and existing measurements,corresponding to an upper flux limit of 2.0}3.10^(10)s^(-1)cm^(-2.at 90%C.L..

关键词： solar pp neutrino flux PandaX-4T electron recoil spectrum

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浅析皮具设计的后现代主义思潮及其发展

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皮革科学与工程 2020年第4期30卷 72-76页

作者：罗斯曾琦四川大学轻工科学与工程学院四川成都610065 四川大学制革清洁技术国家工程实验室四川成都610065 四川大学皮革化学与工程教育部重点实验室四川成都610065

2.世纪60年代一场后现代主义的设计运动兴起,它是对现代主义的反动,其中包括了以波普艺术、解构主义、极简主义等各种风格为代表的设计思潮。这场运动影响了设计的各个领域,皮具设计作为时尚设计的一个门类,也积极地回应后现代主义思潮... 详细信息

2.世纪60年代一场后现代主义的设计运动兴起,它是对现代主义的反动,其中包括了以波普艺术、解构主义、极简主义等各种风格为代表的设计思潮。这场运动影响了设计的各个领域,皮具设计作为时尚设计的一个门类,也积极地回应后现代主义思潮。后现代主义是一个不断发展的过程,在当代衍生出的各种设计理念也对皮具设计产生重要影响,其中最主要的影响就是使得设计更加多元化。在这种多元化的趋势中,快时尚与慢时尚分别代表了两种比较对立的设计理念,对当代皮具设计产生了较大的影响。

关键词：后现代主义皮具设计多元化快时尚慢设计

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