oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 2 )

2019 ( 281 )

2018 ( 1901 )

2017 ( 1799 )

Custom range...

Search Results: 1 - 10 of 120083 matches for " Wang Haijing "
All listed articles are free for downloading (OA Articles)
Page 1 /120083
Display every page Item
A possible important CO2 sink by the global water cycle
ZaiHua Liu,Wolfgang Dreybrodt,HaiJing Wang
Chinese Science Bulletin , 2008, DOI: 10.1007/s11434-008-0096-9
Abstract: The locations, magnitudes, variations and mechanisms responsible for the global CO2 sink are uncertain and under debate. Here, we show, based on theoretical calculations and evidences from field monitoring results, that there is a possible important CO2 sink (as DIC-dissolved inorganic carbon) by the global water cycle. The sink constitutes up to 0.8013 Pg C/a (or 10.1% of the total anthropogenic CO2 emission, or 28.6% of the missing CO2 sink), and is formed by the CO2 absorption of water and subsequent enhanced consumption by carbonate dissolution and aquatic plant photosynthesis. Of the sink, 0.5188 Pg C/a goes to sea via precipitation over sea (0.2748 Pg C/a) and continental rivers (0.244 Pg C/a), 0.158 Pg C/a is released to the atmosphere again, and 0.1245 Pg C/a is stored in the continental aquatic ecosystem. Therefore, the net sink could be 0.6433 Pg C/a. This sink may increase with the global-warming-intensified global water cycle, the increase in CO2 and carbonate dust in atmosphere, and reforestation/afforestation, the latter increasing soil CO2, and thus the concentration of the DIC in water.
A possible important CO2 sink by the global water cycle
LIU ZaiHua,Wolfgang DREYBRODT,WANG HaiJing,
LIU
,ZaiHua,Wolfgang,DREYBRODT,WANG,HaiJing

科学通报(英文版) , 2008,
Abstract: The locations,magnitudes,variations and mechanisms responsible for the global CO2 sink are uncer-tain and under debate.Here,we show,based on theoretical calculations and evidences from field monitoring results,that there is a possible important CO2 sink(as DIC-dissolved inorganic carbon)by the global water cycle.The sink constitutes up to 0.8013 Pg C/a(or 10.1% of the total anthropogenic CO2 emission,or 28.6% of the missing CO2 sink),and is formed by the CO2 absorption of water and subsequent enhanced consumption by carbonate dissolution and aquatic plant photosynthesis.Of the sink,0.5188 Pg C/a goes to sea via precipitation over sea(0.2748 Pg C/a)and continental rivers(0.244 Pg C/a),0.158 Pg C/a is released to the atmosphere again,and 0.1245 Pg C/a is stored in the continental aquatic ecosystem.Therefore,the net sink could be 0.6433 Pg C/a.This sink may increase with the global-warming-intensified global water cycle,the increase in CO2 and carbonate dust in atmosphere,and reforestation/afforestation,the latter increasing soil CO2,and thus the concentration of the DIC in water.
Revealing Topological Organization of Human Brain Functional Networks with Resting-State Functional near Infrared Spectroscopy
Haijing Niu, Jinhui Wang, Tengda Zhao, Ni Shu, Yong He
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0045771
Abstract: Background The human brain is a highly complex system that can be represented as a structurally interconnected and functionally synchronized network, which assures both the segregation and integration of information processing. Recent studies have demonstrated that a variety of neuroimaging and neurophysiological techniques such as functional magnetic resonance imaging (MRI), diffusion MRI and electroencephalography/magnetoencephalog?raphycan be employed to explore the topological organization of human brain networks. However, little is known about whether functional near infrared spectroscopy (fNIRS), a relatively new optical imaging technology, can be used to map functional connectome of the human brain and reveal meaningful and reproducible topological characteristics. Results We utilized resting-state fNIRS (R-fNIRS) to investigate the topological organization of human brain functional networks in 15 healthy adults. Brain networks were constructed by thresholding the temporal correlation matrices of 46 channels and analyzed using graph-theory approaches. We found that the functional brain network derived from R-fNIRS data had efficient small-world properties, significant hierarchical modular structure and highly connected hubs. These results were highly reproducible both across participants and over time and were consistent with previous findings based on other functional imaging techniques. Conclusions Our results confirmed the feasibility and validity of using graph-theory approaches in conjunction with optical imaging techniques to explore the topological organization of human brain networks. These results may expand a methodological framework for utilizing fNIRS to study functional network changes that occur in association with development, aging and neurological and psychiatric disorders.
Factors affecting costs and utilization of type 2 diabetes healthcare: a cross-sectional survey among 15 hospitals in urban China
Weibing Wang, Chaowei Fu, Haijing Zhuo, Jianfeng Luo, Biao Xu
BMC Health Services Research , 2010, DOI: 10.1186/1472-6963-10-244
Abstract: This cross-sectional study was conducted in four major cities in China. Eligible subjects were adult outpatients who received treatment at one of 15 sampled secondary or tertiary hospitals and consecutively enrolled between March 2007 and May 2007. Generalized estimating equations were used to determine impact factors associated with DMC and healthcare utilization.Insurance schemes and receiving insulin therapy were significantly associated with a higher annual DMC of T2DM. For each increase in number of complications, there was about 33% increase in annual DMC. Insurance schemes were significantly associated with the proportions of DMC from pocket. A 7% significantly lower proportion of DMC was paid and 23% more clinic visits (AOR = 1.232, P < 0.001) were made by patients admitted at secondary hospitals than tertiary hospitals. The group with higher income (> 2000 CNY/month) paid 23% less from their pocket, compared with the lower income group. The number of complications also significantly increased the outpatient visits (AOR = 1.064, P < 0.001).It implies that preventing complications through the use of more effective treatment regimens is important in order to control the healthcare expenditures of the diseases. Healthcare reform needs to be focused on the medical insurance system and redistribution of patients in hospitals of different levels.Type 2 Diabetes mellitus (T2DM) affects people at all ages. Nearly, 200 million people (or over 5% of the global adult population) have diabetes worldwide, and this number will increase up to 333 million (or 6.3% of the global adult population) by 2025 [1]. In the developing world, the prevalence was highest in Europe and Central Asia and lowest in Sub-Saharan Africa. In China, the total number of diabetes patients is currently 92.4 million [2,3] and expected to double by 2030 [4].T2DM is also a heavy economic burden on national economies and healthcare systems, especially in developing countries[4]. The direct healthcare
Research on the Legal Liability for Bankcard Deposit Loss
Haijing Yang
Asian Social Science , 2012, DOI: 10.5539/ass.v8n2p276
Abstract: In view of bankcard deposit losses recently reported in newspapers, we should reconsider the legal relationship between the bank and the depositor. The thesis defines the nature of deposit contracts, expounds the rights and obligations of each party, draws the conclusions that: i) deposit contracts are consumer loan contracts in nature; ii) the bank enjoys the ownership of the deposits and undertakes all risks, and analyzes the liabilities of each party for deposit loss under different circumstance.
The vibration research of the AC dipole-girder system for CSNS/RCS
Liu Renhong,Zhang Junsong,Qu Huamin,Kang Ling,Wang Motuo,Wang Guangyuan,Wang Haijing
Physics , 2013,
Abstract: China spallation neutron source(CSNS) is a high intensity proton accelerator based facility, and its accelerator complex includes two main parts: an H- linac and a rapid cycling synchrotron(RCS). The rcs accumulates the 80MeV proton beam, and accelerates it to 1.6GeV, with a repetition rate of 25 Hz. The AC dipole of the RCS is operated at a 25Hz sinusoidal alternating current which causes severe vibration. The vibration will influence the long-term safety and reliable operation of the magnet. The dipole magnet of RCS is active vibration equipment which is different with ground vibration accelerator. It is very important to design and research the dynamic characteristic of the dipole-girder system. This paper takes the dipole and girder as a specific model system, a method for researching the dynamic characteristic of the system is put forward by combining theoretical calculation with experimental testing. The ansys simulation method plays a very important role in the girder structure design stage. With the method the mechanical resonance phenomenon was avoided in the girder design time. At the same time the dipole vibratory force will influence the other equipment through the girder. It is necessary to isolate and decrease the dipole vibration. So a new isolator was designed to isolate the vibratory force and decrease the vibration amplitude of the magnet.
Selenium deficiency impairs host innate immune response and induces susceptibility to Listeria monocytogenes infection
Chengmin Wang, Haijing Wang, Jing Luo, Yi Hu, Lei Wei, Mingxing Duan, Hongxuan He
BMC Immunology , 2009, DOI: 10.1186/1471-2172-10-55
Abstract: Se-deficient mouse models of listeriosis were used to study the innate immune response during the course of L. monocytogenes infection. Blood samples from mouse models were used for Se status. The concentration of MDA, SOD, GPx and CAT in blood has revealed that lower Se level exist in Se-deficient mice. Intestine, mesenteric lymph node, liver, spleen and brain from each mouse were to study the bacterial burden in organs. The analysis of cell types of spleen from Se-deficient mice revealed that the ability of the host to elicit a rapid recruitment and activation of systemic innate immune response to infection was to a certain extent compromised under conditions of Se deficiency. The cytokine levels in the serum and cytokine expression levels in the livers from Se-deficient mice revealed that the innate immune response of Se-deficient mice was impaired throughout the course of infection. These results suggest that innate immune response is altered by Se deficiency after infection with L. monocytogenes.In conclusion, induced susceptibility of host resistance is associated with an impaired innate immune response following infection with L. monocytogenes in C57BL/6 Se-deficient mice.Listeria monocytogenes (L. monocytogenes) is a gram-positive bacterial rod which may cause severe infections, particularly in immunocompromised patients as well as in fetuses, neonates, and the elderly [1]. Congenital infection is the most severe form, usually presenting as granulomatosis infantiseptica, a generalized disease involving the central nervous system (CNS), the gastrointestinal tract, the respiratory system, the lymphatic system, and the kidney. Mortality from neonatal listeriosis is high and virtually 100% if left untreated [2]. L. monocytogenes was recognized as a foodborne pathogen since the 1980s when several outbreaks of listeriosis were identified in Europe and North America [1].Selenium (Se) is of fundamental importance to human health. It is an essential component of seve
Driver Cognitive Distraction Detection Using Driving Performance Measures
Lisheng Jin,Qingning Niu,Haijing Hou,Huacai Xian,Yali Wang,Dongdong Shi
Discrete Dynamics in Nature and Society , 2012, DOI: 10.1155/2012/432634
Abstract: Driver cognitive distraction is a hazard state, which can easily lead to traffic accidents. This study focuses on detecting the driver cognitive distraction state based on driving performance measures. Characteristic parameters could be directly extracted from Controller Area Network-(CAN-)Bus data, without depending on other sensors, which improves real-time and robustness performance. Three cognitive distraction states (no cognitive distraction, low cognitive distraction, and high cognitive distraction) were defined using different secondary tasks. NLModel, NHModel, LHModel, and NLHModel were developed using SVMs according to different states. The developed system shows promising results, which can correctly classify the driver’s states in approximately 74%. Although the sensitivity for these models is low, it is acceptable because in this situation the driver could control the car sufficiently. Thus, driving performance measures could be used alone to detect driver cognitive state. 1. Introduction Driver distraction is a major factor in traffic accidents, and it is estimated that up to 23 percent of crashes and near-crashes are caused by driver distraction. As the use of in-vehicle information systems (IVISs) such as cell phones, navigation systems, and satellite radios, will increase these figures will likely increase [1–6]. Thus enabling drivers to benefit from IVISs without diminishing safety is an important challenge [7]. One way to solve this problem is to detect the driver state in real time, and when distraction occurs, the corresponding warning system works to mitigate the effects of distraction [8]. Obviously, measuring driver state in real time is the core function in such systems. There has been an explosion research on these topics including the definition, classification, and detection of distraction. Donmez et al. [8] proposed a general definition that is “driver distraction is a diversion of attention away from activities critical for safe driving toward a competing activity.” Generally, visual distraction and cognitive distraction are the two major types. Visual distraction can be described as “eye-off-road” and cognitive distraction as “mind-off-road” [9]. Both of them can undermine drivers’ performance. Visual distraction is straightforward, occurring when drivers look away from the roadway (e.g., to adjust a radio), which can be reasonably measured by the length and frequency of glances away from the road [10]. Unlike visual distraction, cognitive distraction occurs when drivers think about something not directly related to the
Analysis of the matrilineal genetic structure of population in the early Iron Age from Tarim Basin, Xinjiang, China
YinQiu Cui,ShiZhu Gao,ChengZhi Xie,QuanChao Zhang,HaiJing Wang,Hong Zhu,Hui Zhou
Chinese Science Bulletin , 2009, DOI: 10.1007/s11434-009-0647-8
Abstract: Ancient mtDNA data of human remains were analyzed from four early Iron Age Tarim Basin sites (Yuansha, Zaghunluq, Sampula and Niya) in the southern Silk Road region. Haplogroup distributions show that ancient Tarim Basin population was comprised of well-differentiated Western and Eastern matrilineal lineages. Some West lineage of Tarim Basin population originated from Near East and Iran region. Of the East lineages, North and Northeast Asia originated lineages were the main components, and a few Southeast Asian lineages also existed, which indicated a more extensive origin and a more complex admixture. The genetic structure of ancient Tarim Basin population is relatively close to the modern populations of Xinjiang, which implied that the early Iron Age is an important period during the formation of the modern Xinjiang population.
Mitochondrial DNA analysis of ancient Sampula population in Xinjiang

Xie Chengzhi,Li Chunxiang,Cui Yinqiu,Cai Dawei,Wang Haijing,Zhu Hong,Zhou Hui,

自然科学进展 , 2007,
Abstract: The archaeological site of Sampula cemetery was located about 14 km to the southwest of the Luo County in Xinjiang Khotan, China, belonging to the ancient Yutian kingdom. 14C analysis showed that this cemetery was used from 217 B.C. to 283 A.D. Ancient DNA was analyzed by 364 bp of the mitochondrial DNA hypervariable region I (mtDNA HVR-I), and by six restriction fragment length polymorphism (RFLP) sites of mtDNA coding region. We successfully extracted and sequenced intact stretches of maternally inherited mtDNA from 13 out of 16 ancient Sampula samples. The analysis of mtDNA haplogroup distribution showed that the ancient Sampula was a complex population with both European and Asian characteristics. Median joining network of U3 sub-haplogroup and multi-dimensional scaling analysis all showed that the ancient Sampula had maternal relationship with Ossetian and Iranian.
Page 1 /120083
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.