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1 – 10 of 822
Article
Publication date: 9 October 2009

Meng‐Lung Lin, Cheng‐Wu Chen, Qiu‐Bing Wang, Yu Cao, Jyh‐Yi Shih, Yung‐Tan Lee, Chen‐Yuan Chen and Shin Wang

The growing rate of desertification in Northwestern China and Mongolia that is occurring as a result of the conflict between economic development and natural conservation has been…

Abstract

Purpose

The growing rate of desertification in Northwestern China and Mongolia that is occurring as a result of the conflict between economic development and natural conservation has been demonstrated in many studies. There have, for example, been some large studies using variations in bi‐weekly normalized difference vegetation index (NDVI) satellite images as a parameter for evaluating the vegetation dynamics in these areas. The purpose of this paper is to identify multi‐temporal variation in vegetated and non‐vegetated areas in remotely sensed satellite images to assess the status of desertification in East Asia.

Design/methodology/approach

Spatial data derived from these satellite images are applied to evaluate vegetation dynamics on a regional level, to identify the areas most vulnerable to desertification.

Findings

Analytical results indicate that the desert areas in East Asia are primarily distributed over Southern Mongolia, Central and Western Inner Mongolia, and Western China (the Taklimakan Desert). These desert areas expanded from 2000 to 2002, shrunk in 2003, then expanded again from 2003 to 2005. The areas most at risk for desertification are principally distributed in Southeastern Mongolia, and Eastern Inner Mongolia.

Originality/value

Simulation results based on data for deserts distributed throughout Northwestern China and Mongolia indicate that the proposed fuzzy model‐based method would be helpful for assessing and monitoring desertification. These analytical results will help administrators refine planning processes, define the boundaries of protected areas, and facilitate decisions for prioritizing areas for desertification protection.

Details

Engineering Computations, vol. 26 no. 7
Type: Research Article
ISSN: 0264-4401

Keywords

Open Access
Article
Publication date: 12 April 2018

Chunlan Li, Jun Wang, Min Liu, Desalegn Yayeh Ayal, Qian Gong, Richa Hu, Shan Yin and Yuhai Bao

Extreme high temperatures are a significant feature of global climate change and have become more frequent and intense in recent years. These pose a significant threat to both…

1418

Abstract

Purpose

Extreme high temperatures are a significant feature of global climate change and have become more frequent and intense in recent years. These pose a significant threat to both human health and economic activity, and thus are receiving increasing research attention. Understanding the hazards posed by extreme high temperatures are important for selecting intervention measures targeted at reducing socioeconomic and environmental damage.

Design/methodology/approach

In this study, detrended fluctuation analysis is used to identify extreme high-temperature events, based on homogenized daily minimum and maximum temperatures from nine meteorological stations in a major grassland region, Hulunbuir, China, over the past 56 years.

Findings

Compared with the commonly used functions, Weibull distribution has been selected to simulate extreme high-temperature scenarios. It has been found that there was an increasing trend of extreme high temperature, and in addition, the probability of its indices increased significantly, with regional differences. The extreme high temperatures in four return periods exhibited an extreme low hazard in the central region of Hulunbuir, and increased from the center to the periphery. With the increased length of the return period, the area of high hazard and extreme high hazard increased. Topography and anomalous atmospheric circulation patterns may be the main factors influencing the occurrence of extreme high temperatures.

Originality/value

These results may contribute to a better insight in the hazard of extreme high temperatures, and facilitate the development of appropriate adaptation and mitigation strategies to cope with the adverse effects.

Details

International Journal of Climate Change Strategies and Management, vol. 11 no. 1
Type: Research Article
ISSN: 1756-8692

Keywords

Open Access
Article
Publication date: 22 November 2022

Chunlan Li, Xinwu Xu, Hongyu Du, Debin Du, Walter Leal Filho, Jun Wang, Gang Bao, Xiaowen Ji, Shan Yin, Yuhai Bao and Hossein Azadi

The paper aims to investigate the possible changes in mean temperature in the Mongolian Plateau associated with the 1.5 and 2°C global warming targets and how snow changes in the…

Abstract

Purpose

The paper aims to investigate the possible changes in mean temperature in the Mongolian Plateau associated with the 1.5 and 2°C global warming targets and how snow changes in the Mongolian Plateau when the mean global warming is well below 2°C or limited to 1.5°C.

Design/methodology/approach

In total, 30 model simulations of consecutive temperature and precipitation days from Coupled Model Inter-comparison Project Phase 5 (CMIP5) are assessed in comparison with the 111 meteorological monitoring stations from 1961–2005. Multi-model ensemble and model relative error were used to evaluate the performance of CMIP5 models. Slope and the Mann–Kendall test were used to analyze the magnitude of the trends and evaluate the significance of trends of snow depth (SD) from 1981 to 2014 in the Mongolian Plateau.

Findings

Some models perform well, even better than the majority (80%) of the models over the Mongolian Plateau, particularly HadGEM2-CC, CMCC-CM, BNU-ESM and GFDL-ESM2M, which simulate best in consecutive dry days (CDD), consecutive wet days (CWD), cold spell duration indicator (CSDI) and warm spell duration indicator (WSDI), respectively. Emphasis zones of WSDI on SD were deeply analysed in the 1.5 and 2 °C global warming period above pre-industrial conditions, because it alone has a significant negative relation with SD among the four indices. It is warmer than before in the Mongolian Plateau, particularly in the southern part of the Mongolian Plateau, indicating less SD.

Originality/value

Providing climate extremes and SD data sets with different spatial-temporal scales over the Mongolian Plateau. Zoning SD potential risk areas and proposing adaptations to promote regional sustainable development.

Details

International Journal of Climate Change Strategies and Management, vol. 14 no. 5
Type: Research Article
ISSN: 1756-8692

Keywords

Article
Publication date: 23 December 2015

Yue Yuan, Yanheng Li and Jingsen Fan

In this paper, the geochemical characteristics of the trace elements of the No. 6 coal seam from Tanggongta mine, Jungar Coalfield, were studied using the methods of an…

Abstract

In this paper, the geochemical characteristics of the trace elements of the No. 6 coal seam from Tanggongta mine, Jungar Coalfield, were studied using the methods of an energydispersive X-ray spectrometer (SEM-EDX) analysis, X-ray powder diffraction (XRD), inductively coupled plasma mass spectrometry (ICP-MS) and X-ray fluorescence spectrometric (XRF) techniques. The content of sulfur ranges from 0.09% to 2.83% (1.09% on average). The ash is from 11.70% to 31.47% (20.72% on average), and the moisture is from 2.72% to 6.82% (4.72% on average). The main minerals are kaolinite, carbonate minerals and pyrite. Compared with the average values of Chinese coal, the contents of Ga, Cd, Tl, Li, Sr, and Ag are high. Compared with the values of world coal, Li and Sr are found at high levels. The distribution mode of the REE shows that LREE is concentrated, but HREE is relatively low. The Yinshan Oldland should be the most likely source of the coal’s Li. The bauxite of the Benxi formation could be another source of the coal’s Li in the NE Jungar Coalfield.

Details

World Journal of Engineering, vol. 12 no. 6
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 6 June 2020

Hao Chen, Ying Li, Lirong Chen and Jin Yin

While the bring-your-own-device (BYOD) trend provides benefits for employees, it also poses security risks to organizations. This study explores whether and how employees decide…

1674

Abstract

Purpose

While the bring-your-own-device (BYOD) trend provides benefits for employees, it also poses security risks to organizations. This study explores whether and how employees decide to adopt BYOD practices when they encounter information security–related conflict.

Design/methodology/approach

Using survey data from 235 employees of Chinese enterprises and applying partial least squares based structural equation modeling (PLS-SEM), we test a series of hypotheses.

Findings

The results suggest that information security–related conflict elicits information security fatigue among employees. As their information security fatigue increases, employees become less likely to adopt BYOD practices. In addition, information security–related conflict has an indirect effect on employee's BYOD adoption through the full mediation of information security fatigue.

Practical implications

This study provides practical implications to adopt BYOD in the workplace through conflict management measures and emotion management strategies. Conflict management measures focused on the reducing of four facets of information security–related conflict, such as improve organization's privacy policies and help employees to build security habits. Emotion management strategies highlighted the solutions to reduce fatigue through easing conflict, such as involving employees in the development or update of information security policies to voice their demands of privacy and other rights.

Originality/value

Our study extends knowledge by focusing on the barriers to employees' BYOD adoption when considering information security in the workplace. Specifically, this study takes a conflict perspective and builds a multi-faceted construct of information security–related conflict. Our study also extends information security behavior research by revealing an emotion-based mediation effect, that of information security fatigue, to explore the mechanism underlying the influence of information security–related conflict on employee behavior.

Details

Journal of Enterprise Information Management, vol. 34 no. 3
Type: Research Article
ISSN: 1741-0398

Keywords

Article
Publication date: 14 September 2022

Jing Zhao, Xin Wang, Biyun Xie and Ziqiang Zhang

This paper aims to present a new kinematics mapping method based on dynamic equivalent points. In teleoperation, this method enables a robotic (follower) arm to mimic human…

Abstract

Purpose

This paper aims to present a new kinematics mapping method based on dynamic equivalent points. In teleoperation, this method enables a robotic (follower) arm to mimic human (leader) arm postures and avoid obstacles in a human-like manner.

Design/methodology/approach

The information of the human arm is extracted based on the characteristics of human arm motion, and the concept of equivalent points is introduced. Then, an equivalent point is determined to transform the robotic arm with a nonhuman-like kinematic structure into an anthropomorphic robotic arm. Based on this equivalent point, a mapping method is developed to ensure that the two arms are similar. Finally, the similarity between the human elbow angle and robot elbow angle is further improved by using this method and an augmented Jacobian matrix with a compensation coefficient.

Findings

Numerical simulations and physical prototype experiments are conducted to verify the effectiveness and feasibility of the proposed method. In environments with obstacles, this method can adjust the position of the equivalent point in real time to avoid obstacles. In environments without obstacles, the similarity between the human elbow angle and robot elbow angle is further improved at the expense of the end-effector accuracy.

Originality/value

This study presents a new kinematics mapping method, which can realize the complete mapping between the human arm and heterogeneous robotic arm in teleoperation. This method is versatile and can be applied to various mechanical arms with different structures.

Details

Industrial Robot: the international journal of robotics research and application, vol. 50 no. 2
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 23 August 2013

Yuan Lu, Shaodong Hu, Qiang Liang, Danming Lin and Changgui Peng

The purpose of this study of Google and Baidu in mainland China is to identify the key contingencies to firm strategic responses to technical and institutional pressures. From an…

2282

Abstract

Purpose

The purpose of this study of Google and Baidu in mainland China is to identify the key contingencies to firm strategic responses to technical and institutional pressures. From an institutional logic perspective and Hirschman's model of exit, voice, and loyalty, this research proposes a few propositions which are intended to explain why foreign and local companies adopt different responses to similar institutional requirements or under similar institutional pressures.

Design/methodology/approach

This study applies a historical chronological method by the recognition of certain types of events and key strategic activities conducted by two sample organizations from their foundations in mainland China till March 2010 when Google exited from China's internet search market. These activities were identified as the measurement of firm strategic responses to institutional pressures. Data were gathered from various sources, including documents published by sample organizations, online and media reports, etc.

Findings

It is found that firms adopted similar responses to technical pressures which were determined by characteristics of the internet industry. However, their responses to institutional pressures, which were driven by the state logic for control of the internet, were dramatically different. As a multinational corporation, Google was faced with inherent tensions between home and host institutional requirements. When the state control pressures increased, Google eventually selected a voice and exit strategy. Baidu, as a local leading player in China's internet market, adopted a loyalty strategy through closer collaboration with local institutional constituents, including government agencies and clients, in addition to its investment in creating corporate images and reputation among local internet users.

Originality/value

This research explores the dynamic and diverse responses of foreign and local companies to institutional pressures and advances our understanding of political properties in firm strategies and the importance of firm nationality in strategy making.

Details

Chinese Management Studies, vol. 7 no. 3
Type: Research Article
ISSN: 1750-614X

Keywords

Book part
Publication date: 13 September 2018

Wenchao Ma, Lina He, Zeng Dan, Guanyi Chen and Xuebin Lu

With the rapid development of China’s urbanisation and market economy, municipal solid waste (MSW) generation is increasing dramatically. In response to the threat of…

Abstract

With the rapid development of China’s urbanisation and market economy, municipal solid waste (MSW) generation is increasing dramatically. In response to the threat of environmental pollution and the potential value of converting waste into energy, both the government and the public are now paying more attention to MSW treatment and disposal methods. In 2014, 178.6 million tonnes of MSW was collected at a safe treatment rate of 84.8%. However, the treatment methods and the composition of MSW are influenced by the collection area, its gross domestic product, population, rainfall and living conditions. This chapter analysed the MSW composition properties of Lhasa, Tibet, compared with other cities, such as Beijing, Guangzhou and so forth. The research showed that the moisture content of MSW in Lhasa approaches 31%, which is much lower than the other cities mentioned previously. The proportion of paper and plastics (rubbers) collected was 25.67% and 19.1%, respectively. This was 1.00–3.17 times and 0.75–2.44 times more than those found in Beijing and Guangzhou, respectively. Non-combustibles can reach up to 22.5%, which was 4.03–9.11 times that of Beijing and Guangzhou, respectively. The net heating values could reach up to 6,616 kilojoule/kilogram. The food residue was only half the proportion found in other cities. Moreover, the disposal method applied in each city has also been studied and compared.

Details

Unmaking Waste in Production and Consumption: Towards the Circular Economy
Type: Book
ISBN: 978-1-78714-620-4

Keywords

Article
Publication date: 1 July 2007

Beverly Milner (Lee) Bisland

The Silk Road is a source of fact and myth. Stretching from Western China to the Middle East, it crossed forbidding deserts and rugged mountains. In this study, students consider…

Abstract

The Silk Road is a source of fact and myth. Stretching from Western China to the Middle East, it crossed forbidding deserts and rugged mountains. In this study, students consider the geography and climate of the region crossed by the silk routes and determine the best route a caravan would take across this region one thousand years ago. The study’s lesson serves as an introduction to the history of the region and the trade routes that crisscrossed it. Students make the same decisions about travel routes that ancient peoples made. The study’s purpose is to determine how elementary students think spatially, the prior knowledge that they bring to their thinking, and the conclusions they draw in critiquing a physical map.

Details

Social Studies Research and Practice, vol. 2 no. 2
Type: Research Article
ISSN: 1933-5415

Article
Publication date: 1 January 2009

Dagula and Lily Kiminami

The purposes of this paper are to examine the actual conditions of the problems of poverty in rural areas in Inner Mongolia, to clarify the problems involved in the measure to…

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Abstract

Purpose

The purposes of this paper are to examine the actual conditions of the problems of poverty in rural areas in Inner Mongolia, to clarify the problems involved in the measure to fight poverty through promotion of dairy farming and to propose policies for future measures to fight poverty.

Design/methodology/approach

Both quantitative and qualitative analyses are employed, such as the estimation of production functions of agriculture in Inner Mongolia over the period 1998‐2004, the interview analysis and questionnaire survey for case studies. The different roles that three models play in poverty reduction such as the government assistant dairy farming, the enterprise entry dairy farming, and the multiple management dairy farming are discussed.

Findings

The paper confirms the growth of the corporate‐participating dairy farming contributes significantly to the development of the regions. It also clarifies the problem of the government‐aided dairy farming with its low profitability caused by insufficient input of fodder and the necessity to select management policies according to the natural conditions and resources available in individual regions, such as a shift toward recycling‐oriented beef cattle management in multiple dairy farming.

Originality/value

The paper adds insight into the promotion of dairy farming and poverty reduction in Inner Mongolia.

Details

China Agricultural Economic Review, vol. 1 no. 1
Type: Research Article
ISSN: 1756-137X

Keywords

1 – 10 of 822