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改进BIM模型的高层办公建筑节能优化仿真

计算机仿真 2024年第8期41卷 281-285页

作者：赵利军白硕李欣刚赵娜河北工程技术学院土木工程学院河北石家庄050091 河北工程大学土木工程学院河北邯郸056000

办公建筑节能优化时,若不能及时了解影响建筑能耗的影响因素,会直接降低建筑的节能优化效果,考虑上述因素提出一种基于BIM模型的办公建筑节能优化方法。建立办公建筑的BIM有限元模型,根据建立的模型对影响建筑能耗的影响因素展开具体分... 详细信息

办公建筑节能优化时,若不能及时了解影响建筑能耗的影响因素,会直接降低建筑的节能优化效果,考虑上述因素提出一种基于BIM模型的办公建筑节能优化方法。建立办公建筑的BIM有限元模型,根据建立的模型对影响建筑能耗的影响因素展开具体分析;在BIM模型中导入DesignBuilder软件对影响因素参数实施模拟样本采集,实施样本训练并将训练好的回归函数作为建筑能耗优化的目标之一;在此基础上,引入建筑室内舒适度适应度函数作为另一优化目标,采用NSGA-II实施目标的优化,获取建筑节能优化目标的最优解,实现办公建筑的节能优化。仿真结果表明,使用该方法开展建筑节能优化时,优化效果好,有利于提升建筑节能效果。

关键词：模型办公建筑节能优化方法影响因素分析优化目标函数

A Middle Triassic stem-neopterygian fish from China shows remarkable secondary sexual characteristics

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Science Bulletin 2016年第4期61卷 338-344页

作者： Guang-Hui Xu li-jun zhao Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing 100044 China Zhejiang Museum of Natural History Hangzhou 310014 China

Secondary sexual characteristics are features that appear at sexual maturity and distinguish the two sexes of a species. They are readily observed and studied in living animals, but the phenomenon is rather more difficult to identify in fossil taxa. Here we report a new sexually dimorphic stem-neopterygian fish, Venusichthys comptus gen. et sp. nov., based on 30 exceptionally well-preserved specimens from the Middle Triassic （Pelsonian, Anisian） Luoping Lagerst^itte of eastern Yunnan, China. The discovery represents the oldest known secondary sexual characteristics in Neopterygii. These characteristics, including pointed tubercles on cranial bones, scales and fins, and hook-like contact organ anterior to the anal fin, have three inferred primary functions： maintenance of body contact between the sexes during prespawning behavior or spawning; stimulation of the females during breeding; and defense of nests and territories. Lacking a specialized anal fin in the presumed males, Venusichthys would likely have a different reproductive strategy from peltopleurids and other potentially viviparous stem-neopterygians. Moreover, Venusichthys shows a unique character combination distinguished from any other stem-neopterygian families and consequently represents a new family of this clade. Assuch, the new finding provides an important addition for understanding the behavior, reproduction, and early diversification of Neopterygii.

关键词： Sexual dimorphism Breeding tuberclesVenusichthyidae Neopterygii Actinopterygii

Applicability of anoxic-oxic process in treating petrochemical wastewater

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第1期10卷 133-141页

作者： li-jun zhao Fang MA Jing-bo GUO School of Chemical Engineering China University of Petroleum Beijing 102249 China School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China

To explore the applicability of anoxic-oxic (A/O) activated sludge process for petrochemical wastewater treatment,the relationship between bacterial community structure and pollutants loading/removal efficiencies was investigated by gas chromatograph-mass spectrometry (GC-MS),polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and other conventional *** showed that when the concentrations of the influent chemical oxygen demand (COD) and ammonia nitrogen (NH4+-N) were 420～560mg/L and 64～100mg/L,respectively,the corresponding average effluent concentra-tions were 160mg/L and 55mg/L,which were 1.6 and 2.2times higher than those of the national standards in China,respectively,demonstrating the inefficient performances of A/O *** of GC-MS indicated that refractory pollutants were mainly removed by sludge adsorption,but not by ***-DGGE profile analysis suggested that the biological system was species-rich,but there was apparent succession of the bacterial community structure in different locations of the A/O *** of bacterial community structure and pollutant loadings had obvious influences on pollutants removal ***,A/O process was inapplicable for the treatment of complicated petrochemical wastewater,and strategies such as the reinforcement of pre-treatment and two-stage A/O process were suggested.

关键词： Petrochemical wastewater Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) Anoxic-oxic (A/O) process Applicability

银川酿酒葡萄产区不同种植年限土壤重金属分布特征和评价

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中国土壤与肥料 2024年第3期 57-62页

作者：李泽敏王振平赵全胜阿吉古丽·马木提郭雪琦李兆君吉林农业大学资源与环境学院吉林长春130118 宁夏大学农学院宁夏银川750021 北方干旱半干旱耕地高效利用全国重点实验室/中国农业科学院农业资源与农业区划研究所北京100081

评估典型酿酒葡萄产区的土壤重金属污染情况对葡萄酒产业绿色可持续发展尤为重要。采集宁夏银川贺兰山和青铜峡产区的代表性酿酒葡萄园土壤样品124份,测定土壤中Pb、Cd、Cr、As、Hg和Cu等重金属的含量,并采用污染指数法分析评估土壤重... 详细信息

评估典型酿酒葡萄产区的土壤重金属污染情况对葡萄酒产业绿色可持续发展尤为重要。采集宁夏银川贺兰山和青铜峡产区的代表性酿酒葡萄园土壤样品124份,测定土壤中Pb、Cd、Cr、As、Hg和Cu等重金属的含量,并采用污染指数法分析评估土壤重金属在不同种植年限上的分布特征和污染情况。结果表明,受调查的葡萄园土壤重金属含量均未超过土壤重金属污染标准值。土壤中各重金属的单项污染指数和综合污染指数均小于1.0,表明该地区土壤污染等级为安全。就不同种植年限而言,土壤重金属内罗梅综合污染指数表现为6~10年>0~5年>16~20年>11~15年,种植年限为6~10年的葡萄园土壤重金属存在一定的污染风险,其中以As、Cd和Cu较为突出。进一步分析发现,葡萄园行间土壤重金属含量高于行内,尤其As表现较明显,而就土壤不同深度而言,Cu易在行内20~40 cm土层积累。总体而言,银川贺兰山和青铜峡酿酒葡萄产区酿酒葡萄园土壤重金属处于清洁水平;部分种植年限和土层土壤重金属含量处于警戒水平。在酿酒葡萄园管理中应注重As、Cd等重金属输入方面的污染管控。

关键词：酿酒葡萄重金属种植年限分布特征污染评价

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Petrochemical wastewater treatment with a pilot-scale bioaugmented biological treatment system

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第11期8卷 1831-1838页

作者： zhao li-jun MA Fang GUO Jing-bo zhao Qing-liang School of Chemical Engineering China University of Petroleum Beijing 102249 China School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China

In solving the deterioration of biological treatment system treating petrochemical wastewater under low temperatures, bioaugmentation technology was adopted by delivering engineering bacteria into a pilot-scale two-stage anoxic-oxic (A/O) process based on previous lab-scale study. Experimental results showed that when the concentrations of COD and NH4+-N of the influent were 370~910 mg/L and 10~70 mg/L, the corresponding average concentrations of those of effluent were about 80 mg/L and 8 mg/L respectively, which was better than the Level I criteria of the Integrated Wastewater Discharge Standard (GB8978-1996). According to GC-MS analysis of the effluents from both the wastewater treatment plant (WWTP) and the pilot system, there were 68 kinds of persistent organic pollutants in the WWTP effluent, while there were only 32 in that of the pilot system. In addition, the amount of the organics in the effluent of the pilot system reduced by almost 50% compared to that of the WWTP. As a whole, after bioaugmentation, the organic removal efficiency of the wastewater treatment system obviously in- creased.

关键词： Bioaugmentation Petrochemical wastewater Pilot-scale study GC/MS

One-way quantum deficit and quantum coherence in the anisotropic X Y chain

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Science China(Physics,Mechanics & Astronomy) 2017年第3期60卷 42-47页

作者： Biao-liang Ye Bo li li-jun zhao Hai-jun Zhang Shao-Ming Fei School of Physics and Electronic Information Shangrao Normal University Shangrao 334001 China School of Mathematics & Computer Science Shangrao Normal University Shangrao 334001 China School of Mathematical Sciences Capital Normal University Beijing 100048 China Max-Planck-lnstitute for Mathematics in the Sciences Leipzig 04103 Germany

In this study, we investigate pairwise non-classical correlations measured using a one-way quantum deficit as well as quantum coherence in the XY spin-1/2 chain in a transverse magnetic field for both zero and finite temperatures. The analytical and numerical results of our investigations are presented. In the case when the temperature is zero, it is shown that the one-way quantum deficit can characterize quantum phase transitions as well as quantum coherence. We find that these measures have a clear critical point at λ = 1. When λ 1, the one-way quantum deficit has an analytical expression that coincides with the relative entropy of coherence. We also study an XX model and an Ising chain at the finite temperatures.

关键词： one-way quantum deficit quantum coherence quantum phase transitions XY chain

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不同乳粉中优势芽孢杆菌的检测与分析

中国调味品 2024年第8期49卷 7-11页

作者：徐丽娜刘世杰朱瑶迪赵莉君梁栋赵改名李苗云河南农业大学食品科学技术学院郑州450002 河南九豫全食品有限公司博士后创新基地河南新乡453500

为研究乳粉中菌落总数和芽孢杆菌种属的组成,分析乳粉在运输、销售、贮藏过程中的风险菌,该研究以国内某品牌的6种不同产地的乳粉为研究对象,采用传统的平板培养方法结合非热处理和热处理两种处理方式对6种乳粉中菌落总数、芽孢菌数量... 详细信息

为研究乳粉中菌落总数和芽孢杆菌种属的组成,分析乳粉在运输、销售、贮藏过程中的风险菌,该研究以国内某品牌的6种不同产地的乳粉为研究对象,采用传统的平板培养方法结合非热处理和热处理两种处理方式对6种乳粉中菌落总数、芽孢菌数量进行统计分析,并通过形态学、革兰氏染色镜检结合16S rDNA鉴定样品中的优势芽孢杆菌。6种样品中的菌落总数主要在10^(2)~10^(3) CFU/g范围内,均小于国家标准5.0×10^(4) CFU/g,符合GB 19644—2010的安全范围。芽孢杆菌在6种样品中均有检出,检出值在10^(1)~10^(2) CFU/g范围内。根据形态学观察分类得到7种革兰氏阳性芽孢杆菌,经16S rDNA和BLAST比对鉴定,芽孢杆菌分别为Bacillus licheniformis、Bacillus amyloliquefaciens、Bacillus circulans、Bacillus paramycoides、Bacillus subtilis、Bacillus velezensis和Bacillus cereus。不同乳粉的菌落总数符合国家标准要求范围,但其中芽孢杆菌种类繁多,是乳粉中微生物的主要优势菌。该研究为我国乳粉质量的监督与监测提供了数据支撑,为乳粉的安全风险评估提供了科学依据。

关键词：乳粉细菌总数芽孢杆菌 16S rDNA 分离鉴定

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不同通风策略下大规模鸭粪堆肥的腐熟和光谱特征

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植物营养与肥料学报 2024年第3期30卷 575-586页

作者： Zubair Muhammad 柳夏艳李兆君王建才朱荣生山东省农业科学院畜牧兽医研究所山东济南250100 北京林业大学/水体污染源控制技术重点实验室北京100083 中国农业科学院农业资源与农业区划研究所北京100081

[目的]鉴于鸭粪处理的固有挑战,有效的通风措施是鸭粪工业堆肥过程成功的关键。这项开创性的研究旨在评估来自鸭粪和蘑菇废弃物堆肥的腐熟度和稳定性。本研究进一步探讨了各种通风策略在促进堆肥过程中有机物分解和转化方面的有效性和... 详细信息

[目的]鉴于鸭粪处理的固有挑战,有效的通风措施是鸭粪工业堆肥过程成功的关键。这项开创性的研究旨在评估来自鸭粪和蘑菇废弃物堆肥的腐熟度和稳定性。本研究进一步探讨了各种通风策略在促进堆肥过程中有机物分解和转化方面的有效性和效率。[方法]将鸭肥和蘑菇废弃物按干重比为2∶1(C/N约为21.15)混合进行堆肥试验。堆肥采用梯形桩,每桩体积5.6 m^(3),采用管道通风。堆肥试验包括4个通气时间处理,分别为10、20、30、60 min/d(分别记作C1、C2、C3和C4处理)。主要研究了堆肥过程中物理化学特性、紫外-可见光谱、X射线衍射(XRD)和红外光谱(IR)的变化特征。[结果]在堆肥第5天和第6天,堆肥进入嗜热期,持续17天,第15天达到50℃。在堆肥前5天,堆肥pH从8.5迅速上升到12.3,可能是由于鸭粪蛋白质的分解,然后在接下来的20天里逐渐下降,在28~30天急剧下降,之后逐渐下降。在高温期(第17天)后,堆肥C1、C2、C3和C4处理的含水量较堆肥初期分别减少了45.9%、46%、44.7%和43%。C3和C4处理的TC值远低于C1和C2。所有堆肥处理的紫外吸收均随波长的增加而降低。在X射线衍射图中存在部分纤维素特征峰(2θ=26.56°)。这些样品含有更多的结晶和“无定形”纤维素、木聚糖和其他多糖。在200~220 nm光谱范围内,硝酸盐和羧基类化学物质的吸收速度比芳香族或不饱和分子快。堆肥的吸收率随初始碳氮比和堆肥过程的持续时间而变化。相反,在460~480 nm处的吸光度表明有机材料的腐殖质化。Q2/6或Q4/6值越低,表明有机物腐殖化程度越高和越多的有机物缩合成芳香族化合物。在红外光谱中,整个堆肥过程中与有机或无机官能团相关的所有条带的强度都有明显的变化。红外光谱显示出一个宽峰,中心波数为3400 cm^(-1),表明存在与羟基(OH)基团和水分子相关的拉伸振动。在3000~2800 cm^(-1)的光谱范围内,可以观察到一个与有机化合物所表现出的疏水特性相关的现象。在2900~2850 cm^(-1)处存在的条带可以归因于C-H脂肪族基团和醛基基团(CHO)的伸缩振动。初始堆肥样品和C1、C2、C3、C4的红外光谱在堆肥过程中发生了显著变化。由于这些变化,红外光谱吸收带发生了显著的变化,表明相关的物质结构发生了变化。因此,C3和C4在堆肥过程中表现出较高程度的稳定性。[结论]65天的堆肥试验显示,在整个堆肥过程中,温度发生变化,通风60 min/d的堆肥最高温度高于通风10 min/d的堆肥。在堆肥过程中,随着通气量的增加,pH呈下降趋势,因此,日通风30~60 min的堆肥pH较低。堆肥过程中,堆料C/N逐渐降低,表明纤维素活性增加。XRD光谱显示峰值强度降低,反映了纤维素的分解。日通风30~60 min堆肥表现出较高的成熟度,突出了通风对成功堆肥的重要性。

关键词：鸭粪蘑菇废弃物堆肥通风成熟度

A Discriminative Algorithm for Indoor Place Recognition Based on Clustering of Features and Images

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International Journal of Automation and computing 2017年第4期14卷 407-419页

作者： Ke Wang Xue-Xiong Long Rui-Feng li li-jun zhao State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin 150001 China

In order to solve the problem of indoor place recognition for indoor service robot, a novel algorithm, clustering of features and images （CFI）, is proposed in this work. Different from traditional indoor place recognition methods which are based on kernels or bag of features, with large margin classifier, CFI proposed in this work is based on feature matching, image similarity and clustering of features and images. It establishes independent local feature clusters by feature cloud registration to represent each room, and defines image distance to describe the similarity between images or feature clusters, which determines the label of query images. Besides, it improves recognition speed by image scaling, with state inertia and hidden Markov model constraining the transition of the state to kill unreasonable wrong recognitions and achieves remarkable precision and speed. A series of experiments are conducted to test the algorithm based on standard databases, and it achieves recognition rate up to 97% and speed is over 30 fps, which is much superior to traditional methods. Its impressive precision and speed demonstrate the great discriminative power in the face of complicated environment.

关键词： Indoor place recognition locally and globally independent clustering of features and images (CFI) state inertia hidden Markov model.