scholarly journals Characteristics and Mechanism of the Environmental Capacity Changes in Haizhou Bay, Northern Jiangsu, China from 2006 to 2016

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2990
Author(s):  
Lei Sun ◽  
Jing Wang ◽  
Haifeng Zhang ◽  
Min Xu
Keyword(s):  
Water Quality ◽  
Influencing Factor ◽  
Coastal Development ◽  
Future Research ◽  
Environmental Capacity ◽  
Haizhou Bay ◽  
Influencing Mechanism ◽  
Sea Reclamation ◽  
And Control

Haizhou Bay is an open bay located in northern Jiangsu Province, China. This study analyzes the changes in the coastline, coastal development, and water quality of Haizhou Bay between 2006 and 2016. The box model method and numerical simulation are adopted to calculate the environmental capacities of Haizhou Bay in 2006 and 2016, analyze changes to environmental capacity features, and assess the influencing factors over this period. The scenario analysis method is used to discuss the influencing mechanism and degree of influence of factors (e.g., the water quality difference inside and outside the bay, and sea reclamation) on the environmental capacity and calculate the contribution of each influencing factor. The changes in terrain triggered by sea reclamation and water quality from 2006 to 2016 reduced the total environmental capacity of Haizhou Bay, with an influencing ratio of 0.198:0.802. In other words, poorer water quality inside the bay reduces the environmental capacity by a degree of 4.05 times that of sea reclamation. This study can offer guidance on related future research aiming to protect the marine environment of Haizhou Bay and control the total amount of pollutants discharged into the sea.

Trends and Research of Wikis' Quality and Governance Based on Bibliometric and Content Analysis

2014 ◽  
pp. 148-166
Author(s):  
Qinghua Zhu ◽  
Linghe Huang ◽  
Jia Tina Du ◽  
Hua Liu
Keyword(s):  
Content Analysis ◽  
Information Science ◽  
Rapid Development ◽  
Active Role ◽  
Future Research ◽  
Organization Management ◽  
Future Research Agenda ◽  
The Status ◽  
And Control

Wiki is a typical representative of the User-Generated Content. Its appearance greatly promotes the creation, organization, management, and sharing of knowledge on the Internet. As articles grow rapidly in Wikis, the quality of the articles has aroused many people’s concerns. The topics on how to assess and control the quality of articles have attracted many researchers. However, few studies have been conducted to investigate the status of this research topic. This chapter explores the current research status and trends of wikis' quality and governance. The authors selected papers from the databases of ISI, EI, IEEE, and other widely used databases. They reported the trends and research of wikis’ quality and governance using bibliometric analysis and content analysis of a total of 99 relevant papers. The results show that although the research topics in the field have experienced a very rapid development, they are still at an early age that lacks theories to support them. The discipline of Library and Information Science was found to play a very active role in this new area. Future research agenda and directions are also discussed.

Minimizing health risks during secondary effluent application via subsurface drip irrigation

2010 ◽  
Vol 62 (10) ◽  
pp. 2330-2337 ◽  
Author(s):  
Gideon Oron ◽  
Lieonid Gillerman ◽  
Avraham Lael ◽  
Yossi Manor ◽  
Erez Braude ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Water Quality ◽  
Health Risks ◽  
Treated Wastewater ◽  
Exposure Model ◽  
Future Research ◽  
Secondary Effluent ◽  
Wastewater Reclamation ◽  
Reclaimed Wastewater

Health risks posed on consumers due to the use of agricultural products irrigated with reclaimed wastewater were assessed by numerical simulation. The analysis is based on defining of an Exposure Model (EM) which takes into account several parameters: (i) the quality of the applied wastewater, (ii) the irrigation method, (iii) the elapsed times between irrigation, harvest, and product consumption, and; (iv) the consumers' habits. The exposure model is used for numerical simulation of human consumers' risks by running the Monte Carlo simulation method. Although some deviations in the numerical simulation which are probably due to uncertainty (impreciseness in quality of input data) and variability due to diversity among populations reasonable results were accepted. Accordingly, there is a several orders of magnitude difference in the risk of infection between the different exposure scenarios with the same water quality. The variability indicates the need for setting risk-based criteria for wastewater reclamation, including the application method and environmental conditions, rather than single water quality guidelines. Extra data is required to decrease uncertainty in the risk assessment. Future research needs to include definite acceptable risk criteria, more accurate dose-response modeling, information regarding pathogen survival in treated wastewater, additional data related to the passage of pathogens into and in the plants during irrigation, and information referring to the consuming habits of the human community.

Metaheuristics and Software Engineering: Past, Present, and Future

2021 ◽  
Vol 31 (09) ◽  
pp. 1349-1375
Author(s):  
Enrique Alba ◽  
Javier Ferrer ◽  
Ignacio Villalobos
Keyword(s):  
Software Engineering ◽  
Future Research ◽  
Software Products ◽  
New Class ◽  
Body Of Knowledge ◽  
Search Optimization ◽  
Automatic Search ◽  
The Many ◽  
And Control

This work aims at giving an updated vision on the successful combination between Metaheuristics and Software Engineering (SE). Mostly during the 90s, varied groups of researchers dealing with search, optimization, and learning (SOL) met SE researchers, all of them looking for a quantified manner of modeling and solving problems in the software field. This paper will discuss on the construction, assessment, and exploitation tasks that help in making software programs a scientific object, subject to automatic study and control. We also want to show with several case studies how the quantification of software features and the automatic search for bugs can improve the software quality process, which eases compliance to ISO/IEEE standards. In short, we want to build intelligent automatic tools that will upgrade the quality of software products and services. Since we approach this new field as a cross-fertilization between two research domains, we then need to talk not only on metaheuristics for SE (well known by now), but also on SE for metaheuristics (not so well known nowadays). In summary, we will discuss here with three time horizons in mind: the old times [before the term search-based SE (SBSE) was used for this], the recent years on SBSE, and the many avenues for future research/development. A new body of knowledge in SOL and SE exists internationally, which is resulting in a new class of researchers able of building intelligent techniques for the benefit of software, that is, of modern societies.

scholarly journals The Characteristics and Mechanism of Changes in the Marine Environmental Capacity of the Estuaries of Haizhou Bay in Northern Jiangsu from 2006 to 2016

2020 ◽  
Vol 8 (10) ◽  
pp. 787 ◽  
Author(s):  
Lei Sun ◽  
Jing Wang ◽  
Haifeng Zhang ◽  
Min Xu
Keyword(s):  
Numerical Simulation ◽  
Influencing Factor ◽  
Analysis Method ◽  
Environmental Capacity ◽  
Haizhou Bay ◽  
The Social ◽  
Ratio Approach ◽  
3D Software ◽  
Economic Sustainable Development ◽  
Marine Environmental

To calculate the environmental capacity of the estuaries of Haizhou Bay in northern Jiangsu, China in 2006 and 2016, this study employed the share ratio approach and established a tidal hydrodynamic model and a water quality diffusion model by the Delft 3D software to perform the numerical simulation. The article compared the environmental capacity in 2006 and 2016, and analyzed the changes between these years. The scenario analysis method was used to explore the influence of factors on the environmental capacity and quantify the contribution of each influencing factor. The results show that the theoretical environmental capacity was reduced by 32.718 tons/day (28.56%) from 114.571 tons/day in 2006 to 81.853 tons/day in 2016. The remaining environmental capacity was reduced by 6.955 tons/day (56.92%) from 12.219 tons/day in 2006 to 5.264 tons/day in 2016. The changes in topography and the amount of runoff into the ocean through the estuaries of Haizhou Bay between 2006 and 2016 reduced the total environmental capacity of the estuaries by an influence ratio of 0.363:0.637. The study will provide the management of the marine environment of Haizhou Bay with information to control the aggregate pollutants flowing into the ocean and support the social and economic sustainable development of Haizhou Bay.

Potential for Meta-Scientific Inquiry to Improve the Usefulness of HRD Research Outcomes for Practice

2019 ◽  
Vol 21 (4) ◽  
pp. 409-420
Author(s):  
David L. Passmore ◽  
Chungil Chae
Keyword(s):  
Human Resource Development ◽  
Scientific Inquiry ◽  
Scientific Method ◽  
Scientific Work ◽  
Future Research ◽  
Research Outcomes ◽  
Scientific Principles ◽  
And Control ◽  
Field Of Inquiry

The Problem Meta-science, that is, science about science, is an application of scientific method to explain and control the methods and enterprise of science. The field of inquiry of meta-science emerged originally in reaction to problems with reproducibility and replicability of seemingly settled science. These same problems could affect research evidence conducted by human resource development (HRD) researchers and, as a result, could limit the applicability of HRD research outcomes to HRD practice. The Solution Discussed in this article are examples of meta-scientific issues and solutions that ultimately affect the transition of knowledge derived through research to practice in the field of HRD. Problems with the reproducibility and replication of research conducted in the field are detailed as are meta-scientific issues involved in judging the quality of scientific work, methodology-agnostic applications of meta-scientific inquiry, requirements for sharing data and code, and the need to let theory guide research. The Stakeholders Researchers would benefit from the considerations of meta-scientific concerns in the design, conduct, and reporting of research to improve the replicability and reproducibility of research outcomes. Knowledge of meta-scientific principles and cautions by adopters of research outcomes would inject healthy skepticism into decisions about whether research outcomes are worthy for application in practice or to guide future research.

scholarly journals ASSESSMENT OF SURFACE WATER QUALITY OF ERO DAM FOR IRRIGATION PURPOSE

2019 ◽  
Vol 31 (3) ◽  
Author(s):  
Olorunwa Eric Omofunmi ◽  
Folasade Atinuade Fasiku ◽  
Kayode Samuel Ogunleye
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Samples ◽  
Surface Water Quality ◽  
Sodium Percentage ◽  
Health Association ◽  
Acceptance Limits ◽  
Magnesium Adsorption Ratio ◽  
And Control

The physicochemical parameters of surface water surface of Ero Dam for irrigation were assessed. Water samples were selected from three locations (upstream, downstream and control). Tested parameters for water samples are pH, electrical conductivity (EC), total dissolved solids (TDS), calcium (Ca2+), magnesium (Mg2+), sodium (Na+), potassium (K+), chloride (Cl-), carbonate (C03-), bicarbonate (HC03-), boron (B), sulphate (S042-), nitrate (NO3-N) and phosphate (PO4-P). The samples were determined in accordance with the American Public Health Association standards. Data were analysed using descriptive statistics. Evaluation of surface water quality of Ero Dam was carried out using different irrigation indices methods such as sodium adsorption ratio (SAR), residual sodium carbonate (RSC), sodium percentage (Na %), potential salinity (PS), The Soluble sodium percentage  (SSP), Kelly ratio (KR), magnesium adsorption ratio (MAR) and permeability index (PI) and compared with standard limits. The findings indicated that the concentrations of the Ca2+,  Mg2+, Na+, K+, Cl-, C03-, HC03-, B, S042-, NO3-N and PO4-P were within the acceptance limits for irrigation purposes except K+ that above the limits specified. Results indicated that majority, 87.5% of irrigation indices fall under excellent or suitable and classified as salinity (C1) and SAR (S1) which was known as (CISI). Hence, there are none degree of restriction in the application Ero Dam water quality for irrigation. Therefore, the results were concluded, that the study area surface water quality was suitable for irrigation.

Effect of the performance of physical and non-physical facilities on higher institutional facilities

2018 ◽  
Vol 16 (4) ◽  
pp. 374-386 ◽  
Author(s):  
Isa Abdullahi ◽  
Wan Zahari Wan Yusoff
Keyword(s):  
Structural Equation ◽  
Teaching And Learning ◽  
Influencing Factor ◽  
Relevant Information ◽  
Facility Management ◽  
The Body ◽  
Future Research ◽  
Content Type ◽  
National University

Purpose The role of institutional facilities is of paramount importance to ensure quality of teaching and learning with respect to achieving quality of education in any given higher educational institutions (HEIs). The purpose of this paper is to determine the performance of physical and non-physical facilities of higher institutional facilities. Design/methodology/approach The data were collected from respondents using a closed-end questionnaire. In total, 1,000 questionnaires were administered to students and 735 were returned and valid for analysis. Partial least squares-structural equation modelling was adopted for analysis. Findings It was found that the exogenous constructs [physical facilities (PPE) and non-physical facilities (PNE)] scored 32.7 per cent (R2 = 0.327) of the variance of the facility’s performance. It was also found that the physical facility is the most significant factor that determines facility performance. Research limitations/implications This paper is limited to investigating the performance of physical and non-physical facilities; it is not in any way a measure for the students’ views about other services offered by the institutions. Future research is needed to use relevant information from HEIs’ facilities for validating factors that determine the facility’s performance. Practical implications Physical facility was identified as the most influencing factor that determines the facility performance based on the information provided by respondents. This research should help the facility management department at HEIs when designing the academic facility management. The study will also serve as a yardstick for the Federal Ministry of Education, the National University Commission in academic facility accreditation. This paper contributes to both the body of knowledge in facility management by considering the performance of facilities at HEIs. Originality/value This paper demonstrates the duality of HEIs’ facilities into physical and non-physical facilities and their distinct contribution to the overall facility’s performance.

scholarly journals Perhitungan Beban Pencemaran Air Sungai Cibabat Kota Cimahi Provinsi Jawa Barat

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Mochammad Azhar Rais Alfaroby ◽  
Eka Wardhani
Keyword(s):  
Water Quality ◽  
Secondary Data ◽  
Domestic Wastewater ◽  
Quality Analysis ◽  
Wastewater Management ◽  
Pollutant Load ◽  
Effective Technology ◽  
Different Seasons ◽  
And Control

The lack of domestic wastewater management services in the Cibabat River Basin has resulted in the Cibabat River being a place to collect domestic wastewater. This of course can reduce water quality  as well as reduce the function of the river itself.  The Cibabat river is known to be a sub-watershed of the Citarum River with a surface   area of  1,855 km2. Activities in the Cibabat watershed  contribute  to the pollution load that  causes the water quality of the Cibabat River to decline, which of course has an impact on the decrease  in the quality of the river and increase  in the polluting  load that the river will receive. The research method uses the calculation of the pollutant  load based on Permen LH 115/2003. The data used are  secondary data from DLH Cimahi City, which  conducted a water quality analysis at three points during  three different seasons in 2019. One of the steps to overcome and control the pollution that occurs is to determine the actual pollutant load so that it can easily determine the application of effective technology  for controlling river water pollution  in the Cibabat River at theCimahi City.

scholarly journals Monitoring the water quality of Jiu River in Dolj County

2021 ◽  
Vol 280 ◽  
pp. 10002
Author(s):  
Florin Faur ◽  
Maria Lazăr ◽  
Izabela-Maria Apostu ◽  
Oleg Pinchuk ◽  
Serhii Klimov
Keyword(s):  
Water Quality ◽  
Control Method ◽  
Water Sampling ◽  
Management Activity ◽  
Sources Of Pollution ◽  
Balanced Distribution ◽  
Renewable Natural Resource ◽  
And Control

Water is a renewable natural resource, but vulnerable and limited in terms of quantity and quality, which is why its exploitation must be done rationally, so as to ensure a complex recovery and a balanced distribution, depending on needs. The water management activity, which has as object the establishment and application of measures for rational use and control of water resources, quantitative and qualitative, is closely related to meeting the requirements of current legislation on exploitation and protection of water and aquatic ecosystems. In this context, the present paper presents a study carried out during 2019, having as the main objective the qualitative characterization of the Jiu River on the administrative territory of Dolj County (Romania). For this purpose, several water sampling campaigns (12, one for each month) from three control sections, established in partnership with the Jiu - Craiova Water Basin Administration, were carried out. The collected samples were analyzed in the analytical laboratory of the same institution and, on the basis of the obtained results, also considering the main existing sources of pollution, conclusions were drawn regarding the Jiu River water quality in the analyzed sector. Also, we applied an alternative control method whose purpose was to validate the initial conclusions.

Sign in / Sign up

Export Citation Format

Share Document