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Chen Zhang
Department of Information Systems and Analytics, Bryant University, Smithfield, RI 02917, USA

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Journal article
Published: 10 February 2020 in Sustainability
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With the imminent need of regional environmental protection and sustainable economic development, the concept of virtual water is widely used to solve the problem of regional water shortage. In this paper, nine provinces, namely Qinghai, Sichuan, Gansu, Ningxia, Inner Mongolia, Shaanxi, Shanxi, Henan, and Shandong in the Yellow River Basin (YRB), are taken as the research objects. Through the analysis of input-output tables of 30 provinces in China in 2012, the characteristics of virtual water trade in this region are estimated by using a multi-regional input-output (MRIO) model. The results show that: (1) The YRB had a net inflow of 17.387 billion m³ of virtual water in 2012. In interprovincial trade, other provinces outside the basin export 21.721 billion m³ of virtual water into the basin. In international trade, the basin exports 4334 million m³ of virtual water to the international market. (2) There are different virtual flow paths in the basin. Shanxi net inputs virtual water by interprovincial trade and international trade, while Gansu and Ningxia net output virtual water by interprovincial trade and international trade. The other six provinces all net output virtual water through international trade, and obtain the net input of virtual water from other provinces outside the basin. (3) From the industrial structure of the provinces in the basin, the provinces with a relatively developed economy, such as Shandong and Shanxi, mostly import virtual water in the agricultural sector, while relatively developing provinces, such as Gansu and Ningxia, mostly import virtual water in the industrial sector. In order to sustain the overall high-quality development of the YRB, we propose the virtual water trade method to quantify the net flow of virtual water in each province and suggest the compensation responsibility of the virtual water net inflow area, and the compensation need of the virtual water net outflow area, in order to achieve efficient water resources utilization.

ACS Style

Guiliang Tian; Xiaosheng Han; Chen Zhang; Jiaojiao Li; Jining Liu. Virtual Water Flows Embodied in International and Interprovincial Trade of Yellow River Basin: A Multiregional Input-Output Analysis. Sustainability 2020, 12, 1251 .

AMA Style

Guiliang Tian, Xiaosheng Han, Chen Zhang, Jiaojiao Li, Jining Liu. Virtual Water Flows Embodied in International and Interprovincial Trade of Yellow River Basin: A Multiregional Input-Output Analysis. Sustainability. 2020; 12 (3):1251.

Chicago/Turabian Style

Guiliang Tian; Xiaosheng Han; Chen Zhang; Jiaojiao Li; Jining Liu. 2020. "Virtual Water Flows Embodied in International and Interprovincial Trade of Yellow River Basin: A Multiregional Input-Output Analysis." Sustainability 12, no. 3: 1251.

Journal article
Published: 08 June 2013 in Information Systems Frontiers
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Firms are increasingly employing social media to manage relationships with partner organizations, yet the role of institutional pressures in social media assimilation has not been studied. We investigate social media assimilation in firms using a model that combines the two theoretical streams of IT adoption: organizational innovation and institutional theory. The study uses a composite view of absorptive capacity that includes both previous experience with similar technology and the general ability to learn and exploit new technologies. We find that institutional pressures are an important antecedent to absorptive capacity, an important measure of organizational learning capability. The paper augments theory in finding the role and limits of institutional pressures. Institutional pressures are found to have no direct effect on social media assimilation but to impact absorptive capacity, which mediates its influence on assimilation.

ACS Style

P. Bharati; C. Zhang; A. Chaudhury. Social media assimilation in firms: Investigating the roles of absorptive capacity and institutional pressures. Information Systems Frontiers 2013, 16, 257 -272.

AMA Style

P. Bharati, C. Zhang, A. Chaudhury. Social media assimilation in firms: Investigating the roles of absorptive capacity and institutional pressures. Information Systems Frontiers. 2013; 16 (2):257-272.

Chicago/Turabian Style

P. Bharati; C. Zhang; A. Chaudhury. 2013. "Social media assimilation in firms: Investigating the roles of absorptive capacity and institutional pressures." Information Systems Frontiers 16, no. 2: 257-272.

Journal article
Published: 01 January 2011 in International Journal of Communications, Network and System Sciences
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Moving object database (MOD) engine is the foundation of Location-Based Service (LBS) information systems. Continuous queries are important in spatial-temporal reasoning of a MOD. The communication costs were the bottleneck for improving query efficiency until the rectangular safe region algorithm partly solved this problem. However, this algorithm can be further improved, as we demonstrate with the dynamic interval based continuous queries algorithm on moving objects. Two components, circular safe region and dynamic intervals were adopted by our algorithm. Theoretical proof and experimental results show that our algorithm substantially outperforms the traditional periodic monitoring and the rectangular safe region algorithm in terms of monitoring accuracy, reducing communication costs and server CPU time. Moreover, in our algorithm, the mobile terminals do not need to have any computational ability.

ACS Style

Shengsheng Wang; Chen Zhang. A Dynamic Interval Based Circular Safe Region Algorithm for Continuous Queries on Moving Objects. International Journal of Communications, Network and System Sciences 2011, 04, 313 -322.

AMA Style

Shengsheng Wang, Chen Zhang. A Dynamic Interval Based Circular Safe Region Algorithm for Continuous Queries on Moving Objects. International Journal of Communications, Network and System Sciences. 2011; 04 (05):313-322.

Chicago/Turabian Style

Shengsheng Wang; Chen Zhang. 2011. "A Dynamic Interval Based Circular Safe Region Algorithm for Continuous Queries on Moving Objects." International Journal of Communications, Network and System Sciences 04, no. 05: 313-322.

Journal article
Published: 23 June 2006 in Real-Time Systems
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Many of today’s complex computer applications are being modeled and constructed using the principles inherent to real-time distributed object systems. In response to this demand, the Object Management Group’s (OMG) Real-Time Special Interest Group (RT SIG) has worked to extend the Common Object Request Broker Architecture (CORBA) standard to include real-time specifications. This group’s most recent efforts focus on the requirements of dynamic distributed real-time systems. One open problem in this area is resource access synchronization for tasks employing dynamic priority scheduling.

ACS Style

Chen Zhang; David Cordes. Resource access control for dynamic priority distributed real-time systems. Real-Time Systems 2006, 34, 101 -127.

AMA Style

Chen Zhang, David Cordes. Resource access control for dynamic priority distributed real-time systems. Real-Time Systems. 2006; 34 (2):101-127.

Chicago/Turabian Style

Chen Zhang; David Cordes. 2006. "Resource access control for dynamic priority distributed real-time systems." Real-Time Systems 34, no. 2: 101-127.

Journal article
Published: 12 October 2004 in Concurrency and Computation: Practice and Experience
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ACS Style

Chen Zhang; David Cordes. Simulation of resource synchronization in a dynamic real-time distributed computing environment. Concurrency and Computation: Practice and Experience 2004, 16, 1433 -1451.

AMA Style

Chen Zhang, David Cordes. Simulation of resource synchronization in a dynamic real-time distributed computing environment. Concurrency and Computation: Practice and Experience. 2004; 16 (14):1433-1451.

Chicago/Turabian Style

Chen Zhang; David Cordes. 2004. "Simulation of resource synchronization in a dynamic real-time distributed computing environment." Concurrency and Computation: Practice and Experience 16, no. 14: 1433-1451.