Building Waste Output Forecasting Model based on Gray Metabolism GM (1,1)

Yabo He,Wang Hongtao,Yang Lin,Qin Wei4 보안공학연구지원센터 2016 International Journal of Smart Home Vol.10 No.2

With the increase of construction investment and urbanization, building waste output in our country is huge. This paper first constructs a set based on the construction area and per unit area of garbage generated quantity of urban building waste estimation method, then using grey system theory prediction and analysis of the next four years of building waste output. By the introduction of metabolic thought, the grey metabolic GM (1,1) forecast model was constructed, overcoming the shortages of conventional GM (1, 1) model. Prediction results show that the model is higher than the conventional GM (1,1) model prediction accuracy, which is suitable for the prediction of the short term of building waste in our country and for the treatment and reuse of building waste to provide certain reference.

The Manifestations, Causes, Impacts and Across Paths of Pan-Securitization

Zong Wei(Wei Zong),He Haiyang(Haiyang He) 아시아사회과학학회 2023 Jornal of Asia Social Science Vol.10 No.2

In recent years, with the decline of globalization, the rise of nationalism in the US and Western countries has become more prominent. They have adopted conservative policies under the pretext of national security, leading to the proliferation of pan-securitization. Facing various and complex security challenges, countries have attached more importance to national security. Anyway, based on the Copenhagen School’s theory of securitization, the process of securitization can result in pansecuritization, which manifests in three aspects: the worship of securitization at the initiation stage; the excessive expansion of issues at the development stage; and the difficulty of de-securitization at the post-securitization stage. On the one hand, pansecuritization can cause problems such as security capital overdraft, radical change cultivation, lack of common security perception and human rights protection impairment within a country. On the other hand, it can also cause problems such as production efficiency reduction and security dilemma induction at the international level. The causes of pan-securitization are complex, but mainly stem from the interconnection of security threats, the monopoly of speech power by agents, the centralist political form and the endogenous defects of the Copenhagen School’s securitization theory. Today, guided by the overall national security concept, national security has received unprecedented attention. In view of the pan-securitization trap that the US and Western countries have fallen into, we should take measures from three aspects: security democratization, security legalization and de-worship of securitization to avoid repeating their mistakes. Only in this way can we enhance the effectiveness of issue securitization and improve the implementation efficiency of security policies.

A Lyapunov Drift-Plus-Penalty-Based Multi-Objective Optimization of Energy Consumption, Construction Period and Benefit

Wei He,Wei Li,Shan Xu 대한토목학회 2020 KSCE Journal of Civil Engineering Vol.24 No.10

Energy consumption and construction period in the construction process have been the focus of experts and researchers in the industry. Income by energy consumption and construction period is the long-term goal of industry managers. However, random events on the construction site are unpredictable, which have a random impact on energy consumption, construction period and its benefits. Therefore, a multi-objective stochastic optimization algorithm is designed to analyze the energy consumption, construction period and its benefits in the construction process, considering the random events. By introducing the idea of Lyapunov drift plus penalty, the construction process is simulated as a network transmission model, starting from the begin of the construction, and a series of construction sections are used as transmission. In this way, a virtual construction queue is constructed, Lyapunov quadratic function is defined, drift function is constructed, and the greedy objective function is punished to the minimum. Through the simulation process, the practicability of the algorithm is verified under the creation of several random events. The simulation accuracy and benefit value discrimination of the algorithm are higher comparing with the situation before optimization.

An Improved Integrative Transformation System for Pichia pastoris with DNA-polyethylenimine-dextran Sulfate Nanoparticles

Wei Xue,Hang Wang,Zuodi Pei,Wei Zhao,Yong-Sheng Tian,Ri-He Peng,Quan-Hong Yao 한국생물공학회 2013 Biotechnology and Bioprocess Engineering Vol.18 No.3

Pichia pastoris is a suitable host for selecting mutant enzymes, since it can secret many gene products to the medium. However, poor transformation efficiency is often encountered. This makes it difficult to obtain a large number of transformants necessary to thoroughly cover a large library. We report here that pre-coating DNA with polyethyleneimine and dextran sulfate increased gene integration significantly in Pichia electroporation. This improvement on integrative efficiency has been proved in different voltage, resistance, cell phase, and DNA concentrations. The condensed DNA nanoparticles make Pichia available as a host for screening large libraries of random mutants.

Design of Sliding Mode Controller with Auto-tuning Method

Wei He,Yujia Zhai 한국융합학회 2013 한국융합학회논문지 Vol.4 No.2

Effects of wind barriers on running safety of trains for urban rail cable-stayed bridge

Wei He,Xiang-Rong Guo,Zhi-hui Zhu,Pengru Deng,Xu-hui He 한국풍공학회 2020 Wind and Structures, An International Journal (WAS Vol.31 No.1

Considering the wind barriers induced aerodynamic characteristic variations of both bridge deck and trains, this paper studies the effects of wind barriers on the safety and stability of trains as they run through an urban rail transit cable-stayed bridge which tends to be more vulnerable to wind due to its relatively low stiffness and lightweight. For the bridge equipped with wind barriers of different characteristics, the aerodynamic coefficients of trains and bridge decks are obtained from wind tunnel test firstly. And then, the space vibration equations of the wind-train-bridge system are established using the experimentally obtained aerodynamic coefficients. Through solving the dynamic equations, one can calculate the dynamic responses both the trains and bridge. The results indicate that setting wind barriers can effectively reduce the dynamic responses of both the trains and bridge, even though more wind forces acting on the bridge are caused by wind barriers. In addition, for urban rail transit cable-stayed bridges located in strong wind environment, the wind barriers are recommended to be set with 20% porosity and 2.5 m height according to the calculation results of cases with wind barriers porosity and height varying in two wide ranges, i.e., 10% - 40% and 2.0 m to 4.0 m, respectively.

Appropriate nitrogen application enhances saponin synthesis and growth mediated by optimizing root nutrient uptake ability

Wei, Wei,Ye, Chen,Huang, Hui-Chuan,Yang, Min,Mei, Xin-Yue,Du, Fei,He, Xia-Hong,Zhu, Shu-Sheng,Liu, Yi-Xiang The Korean Society of Ginseng 2020 Journal of Ginseng Research Vol.44 No.4

Background: Cultivation of medicinal crops, which synthesize hundreds of substances for curative functions, was focused on the synthesis of secondary metabolites rather than biomass accumulation. Nutrition is an important restrict factor for plant growth and secondary metabolites, but little attention has been given to the plasticity of nutrient uptake and secondary metabolites synthesis response to soil nitrogen (N) change. Methods: Two year-field experiments of Sanqi (Panax notoginseng), which can synthesize a high level of saponin in cells, were conducted to study the effects of N application on the temporal dynamics of biomass, nutrient absorption, root architecture and the relationships between these parameters and saponin synthesis. Results: Increasing N fertilizer rates could improve the dry matter yields and nutrient absorption ability through increasing the maximum daily growth (or nutrient uptake) rate. Under suitable N level (225 kg/ha N), Sanqi restricted the root length and surface and enhanced the root diameter and N uptake rate per root length (NURI) to promote nutrient absorption, but the opposite status of Sanqi root architecture and NURI was found when soil N was deficient. Furthermore, increasing N rates could promote the accumulation of saponin in roots through improving the NURI, which showed a significant positive relationship with the content of saponin in the taproots. Conclusion: Appropriate N fertilizer rates could optimize both root architecture and nutrient uptake efficiency, then promote both the accumulation of dry matter and the synthesis of saponins.

Anthropogenic signature of sediment organic matter probed by UV–Visible and fluorescence spectroscopy and the association with heavy metal enrichment

He, Wei,Lee, Jong-Hyun,Hur, Jin Elsevier 2016 CHEMOSPHERE - Vol.150 No.-

<P><B>Abstract</B></P> <P>Sediment organic matter (SOM) was extracted in an alkaline solution from 43 stream sediments in order to explore the anthropogenic signatures. The SOM spectroscopic characteristics including excitation-emission matrix (EEM)–parallel factor analysis (PARAFAC) were compared for five sampling site groups classified by the anthropogenic variables of land use, population density, the loadings of organics and nutrients, and metal enrichment. The conventional spectroscopic characteristics including specific UV absorbance, absorbance ratio, and humification index did not properly discriminate among the different cluster groups except in the case of metal enrichment. Of the four decomposed PARAFAC components, humic-like and tryptophan-like fluorescence responded negatively and positively, respectively, to increasing degrees of the anthropogenic variables except for land use. The anthropogenic enrichment of heavy metals was positively associated with the abundance of tryptophan-like component. In contrast, humic-like component, known to be mostly responsible for metal binding, exhibited a decreasing trend corresponding with metal enrichment. These conflicting trends can be attributed to the overwhelmed effects of the coupled discharges of heavy metals and organic pollutants into sediments. Our study suggests that the PARAFAC components can be used as functional signatures to probe the anthropogenic influences on sediments.</P> <P><B>Highlights</B></P> <P> <UL> <LI> PARAFAC could probe low to moderate levels of anthropogenic signature of SOM. </LI> <LI> Metal enrichment was positively associated with tryptophan-like substances of SOM. </LI> <LI> High metal binding affinity of humic-like component was not evident in sediments. </LI> <LI> Probing SOM for metal enrichment revealed coupled discharge of metals and organics. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Zhizhu Decoction Promotes Gastric Emptying and Protects the Gastric Mucosa

Wei He,Yi Zhang,Xinrui Wang,Lingling Guo,Lifeng Han,Erwei Liu,Tao Wang 한국식품영양과학회 2013 Journal of medicinal food Vol.16 No.4

The aim of this study was to evaluate the effects of the Zhizhu decoction on gastric emptying and gastric mucosal protection. The Zhizhu decoction is composed of Aurantii fructus and Atractylodes macrocephala Rhizoma. Results showed that oral administration of the Zhizhu decoction accelerated gastric emptying in mouse and protected gastric mucosa from ethanol-induced ulcers in rat. Our investigations demonstrated that the Zhizhu decoction accelerated gastric emptying, at least in part, by activating the muscarinic and 5-HT3 receptors. The gastroprotective effect is involved in its antioxidant effects and increased vascular endothelial growth factor expression.

중국 대학생의 성취동기, 자기주도적 학습능력과 교수의 수업의 질 인식의 관계

He, Wei,전춘련 학습자중심교과교육학회 2020 학습자중심교과교육연구 Vol.20 No.16

This study aims to look into how Chinese university students tend to perceive the class quality of Chinese professors along with how the perceptions of university students on class quality differ according to their achievement motivations and self-directed learning abilities and how their perceptions of class quality affect their perceptions on their own university grades and university satisfaction. To this end, 275 undergraduate students from three universities in Zhejiang Province were studied from May 1 to May 18, 2019. Research results showed that no differences were shown among perceptions on the class quality of professors, achievement motivations, and self-directed learning abilities between genders or grades but satisfaction was higher for those with higher grades so students with excelling grades perceived class quality to be good. Therefore, this implies that improvement efforts such as class attitude, class preparation, and class methods are important but that they are meaningless if such efforts do not lead to class satisfaction and more than anything else, professors must focus on providing class services that students can be satisfied with for the enhancement of class quality. 본 연구는 중국 교수의 수업의 질에 대하여 중국 대학생은 어떻게 인식하고 있는지 그 경향성을 파악하고, 대학생들의 성취동기, 자기 주도적 학습능력에 따라 그들의 수업의 질 인식이 다른지, 그리고 수업의 질 인식은 자신들의 대학성적 인식과 대학 만족에 영향을 주는지를 밝히는 데에 목적이 있다. 이를 위해 2019년 5월 1일부터 5월 18일까지 중국 절강성에 소재하는 3개 대학의 학부생 275명을 대상으로 연구를 진행하였다. 연구결과, 교수의 수업의 질, 성취동기, 자기 주도적 학습능력에 대한 인식은 남녀 간, 학년 간은 차이가 없었으나, 성적이 좋을수록 만족도가 높아 성적이 우수한 학생일수록 수업의 질을 좋게 인식하였다. 따라서 대학은 수업 태도, 수업 준비, 수업 방법 등의 개선 노력도 중요하지만 결국 이러한 노력은 수업 만족으로 이어지지 않으면 의미가 없다는 것을 시사함으로 교수는 무엇보다 수업의 질 향상을 위한 학생들이 만족하는 수업 서비스를 제공하는 데에 초점을 맞추어야 한다.