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Search Results: 1 - 10 of 59292 matches for " Yanjun YANG "
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An Empirical Study on the Determinants of Labor Entering Monopoly Industry in China’s Urban Labor Market
Yanjun YANG,Dan HUANG
Management Science and Engineering , 2012, DOI: 10.3968/j.mse.1913035x20120604.619
Abstract: Industrial segmentation of the labor market is an important factor which causes the wage inequality in China’s urban labor market. This paper aims to investigate the determinants which help people entering monopoly industry by building a logistic model using CHIP data. The results show that the workers’ education, work experience and age are more helpful for labor entering monopoly industry in China’s urban labor market. Compared with the local residents with the same human capital, the probability of the floating population entering the monopoly industry is much smaller. Key words: Industrial segmentation; Urban labor market; Logistic model
Viewing China’s CI Design from Shenzhen
Yanjun Li,Haozhong Yang
Asian Social Science , 2009, DOI: 10.5539/ass.v4n8p90
Abstract: China is expected to start from its realities, to absorb the merits in CI of U.S. and Japan, to rely on conception and to convey enterprises’ operation conception as well as culture to those individuals or organizations related to them with its integrated transimission system. As an image project, CI refers to the packaging and improvement of an enterprise’s image. With our increasing knowldege about CI, we can learn more about an enterprise’s conception and regulations of conduct,and accordingly, base the whole designing process on conception. Besides, an enterprise’s performance should be judged according to scientific statistics instead of perceptual feelings.
Joint Detection for Image Transmission Based on Schur Algorithm over Wireless Sensor Network  [PDF]
Yanjun HU
Communications and Network (CN) , 2009, DOI: 10.4236/cn.2009.12014
Abstract: To achieve much efficient multimedia transmission over an error-prone wireless network, there are still some problem must to be solved, especially in energy limited wireless sensor network. In this paper, we propose a joint detection based on Schur Algorithm for image wireless transmission over wireless sensor network. To eliminate error transmissions and save transmission energy, we combine Schur algorithm with joint dynamic detection for wireless transmission of JPEG 2000 encoded image which we proposed in [1]. Schur algorithm is used to computing the decomposition of system matrix to decrease the computational complexity. We de-scribe our transmission protocol, and report on its performance evaluation using a simulation testbed we have designed for this purpose. Our results clearly indicate that our method could approach efficient images transmission in wireless sensor network and the transmission errors are significantly reduced when compared to regular transmissions.
Separation of the Martensite in TiNi Fiber Reinforced Aluminum Matrix Composite
Yanjun ZHENG,Lishan CU,IYan LI,Dazhi YANG,
Yanjun
,ZHENG,and,Lishan,GUI

材料科学技术学报 , 2004,
Abstract: The reverse martensitic transformation of TiNi shape memory alloy fibers embedded in a pure aluminum matrix was studied in this paper. Results showed that the phase composition of the TiNi alloy fibers prior to prestraining at the room temperature had a significant influence on the differential scanning calorimetry (DSC) results of the composites. By a comparison to the high temperature X-ray diffraction (XRD) results, it was confirmed that the martensite was divided into two groups: the self-accommodating martensite (SAM) and the preferentially oriented martensite (POM). The evolving process of the separation of martensite was discussed.
Design of Multilevel Sequential Rotation Feeding Networks Used for Circularly Polarized Microstrip Antenna Arrays
Aixin Chen,Chuo Yang,Zhizhang Chen,Yanjun Zhang,Yingyi He
International Journal of Antennas and Propagation , 2012, DOI: 10.1155/2012/304816
Abstract: Sequential rotation feeding networks can significantly improve performance of the circularly polarized microstrip antenna array. In this paper, single, double, and multiple series-parallel sequential rotation feeding networks are examined. Compared with conventional parallel feeding structures, these multilevel feeding techniques present reduction of loss, increase of bandwidth, and improvement of radiation pattern and polarization purity. By using corner-truncated square patch as the array element and adopting appropriate level of sequential rotation series-parallel feeding structures as feeding networks, microstrip arrays can generate excellent circular polarization (CP) over a relatively wide frequency band. They can find wide applications in phased array radar and satellite communication systems.
A retrospective study on the impact of comorbid depression or anxiety on healthcare resource use and costs among diabetic neuropathy patients
Luke Boulanger, Yang Zhao, Yanjun Bao, Mason W Russell
BMC Health Services Research , 2009, DOI: 10.1186/1472-6963-9-111
Abstract: Over-age-18 individuals with 1+ diagnosis of DN in 2005 were selected. The first observed DN claim was considered the "index date." All individuals had a 12-month pre-index and follow-up period. For both under-age-65 commercially insured and over-age-65 individuals with employer-sponsored Medicare supplemental insurance, we constructed 2 subgroups for individuals with DA (DN-DA) or without (DN-only). Patients' clinical characteristics over pre-index period were compared. Multivariate regressions were performed to assess whether DN-DA patients had higher utilization of healthcare resources and costs than DN-only patients, controlling for demographic and clinical characteristics.We identified 16,831 DN-only and 1,699 DN-DA patients in the Medicare supplemental cohort, as well as 17,205 and 3,105 in the commercially insured. DN-DA patients had higher prevalence of diabetes-related comorbidities for cardiovascular disease, cerebrovascular/peripheral vascular disease, nephropathy, obesity, and hypoglycemic events than DN-only patients (all p < 0.05). Controlling for differences in demographic and clinical characteristics, DN-DA patients had $9,235 (p < 0.05) higher total healthcare costs than patients with DN-only among those with Medicare supplemental coverage ($26,718 vs. $17,483), and $10,389 (p < 0.05) more total costs among commercially insured ($29,775 vs. $19,386). Factors associated with increased costs included insurance type, geographical region, diabetes-related comorbidities, and insulin therapy.These findings indicate that the healthcare costs were significantly higher for DN patients with depression or anxiety relative to those without such comorbid disorders.Diabetes mellitus is a chronic condition that has been estimated to affect over 20 million people or 7% of the total population in the U.S. in 2005 [1]. Diabetic neuropathy (DN) is a common complication of diabetes, in which nerves are damaged as a result of hyperglycemia. Painful DN manifests itself a
Effects of pistachios on body weight in Chinese subjects with metabolic syndrome
Xin Wang, Zhaoping Li, Yanjun Liu, Xiaofeng Lv, Wenying Yang
Nutrition Journal , 2012, DOI: 10.1186/1475-2891-11-20
Abstract: To investigate the impact of different dosages of pistachios on body weight, blood pressure, blood lipids, blood glucose and insulin in subjects with metabolic syndrome.Ninety subjects with metabolic syndrome (consistent with 2005 International Diabetes Federation metabolic syndrome standard without diabetes) were enrolled in three endocrinology outpatient clinics in Beijing. All subjects received dietary counseling according to the guidelines of the American Heart Association Step I diet. After a 4 week run-in, subjects were randomized to consume either the recommended daily serving of 42 g pistachios (RSG), a higher daily serving of 70 g pistachio (HSG) or no pistachios (DCG) for 12 weeks.Subjects in all three groups were matched at baseline for BMI: DCG 28.03 ± 4.3; RSG 28.12 ± 3.22; and HSG 28.01 ± 4.51 kg/m2. There were no significant changes in body weight or BMI in any groups during the study nor any change from baseline at any time point in any group. During the entire study, there were no significant differences in waist-to-hip ratio among the groups or any change from baseline in any group (DCG -0.00 ± 0.03, RSG -0.01 ± 0.02 and HSG 0.01 ± 0.04). There were no significant differences detected among groups in triglycerides, fasting glucose and 2 hour postprandial glucose following a 75 gram glucose challenge. Exploratory analyses demonstrated that glucose values 2 h after a 75 gm glucose challenge were significantly lower at week 12 compared with baseline values in the HSG group (-1.13 ± 2.58 mmol/L, p = 0.02), and a similar trend was noted in the RSG group (-0.77 ± 2.07 mmol/L, p = 0.06), while no significant change was seen in the DCG group (-0.15 ± 2.27 mmol/L, p = 0.530). At the end of study, serum triglyceride levels were significantly lower compared with baseline in the RSG group (-0.38 ± 0.79 mmol/L, p = 0.018), but no significant changes were observed in the HSG or DCG groups.Despite concerns that pistachio nut consumption may promote weight gain, t
Effects of Predeformation on the Reverse Martensitic Transformation of TiNi Shape Memory Alloy
Yanjun ZHENG,Lishan CUI,Fan Zhang,Dazhi YANG,

材料科学技术学报 , 2000,
Abstract: DSC was used to study the effects of predeformation on the reverse martensitic transformation of near-equiatomic TiNi alloy. Both the start temperature A(s) and the finish temperature A(f) of the reverse transformation increased with increasing degree of predeformation, but the algebraic difference between A(s) and A(f) decreased with increasing predeformation until it reached a minimum value, then remained unchanged with further deformation. Transformation heat also increased with increasing predeformation until it reached a maximum value, then decreased with further predeformation. All the phenomena above were considered to be closely related with the release of elastic strain energy during predeformation.
Seasonal variation of sedimentation in the Changjiang Estuary mud area

GUO Zhigang,YANG Zuosheng,FAN Dejiang,PAN Yanjun,

地理学报 , 2003,
Abstract: Seasonal distributions of suspended matter and their sedimentary effect on the Changjiang Estuary mud area of the East China Sea were discussed, based on three cruise data of total suspended matter, temperature and salinity collected from the Changjiang Estuary and its adjacent area in summer and winter. The results show that the basic pattern of distributions of suspended matter in the study area is almost the same in winter and in summer. Sediments from Changjiang (Yangtze River) to the sea are chiefly trapped to the west of 123o15'E due to a strong obstruction of the Taiwan Warm Current. This suggests that these sediments are mainly transported and deposited in the inner shelf. The sediment supply, Taiwan Warm Current, and Zhejiang Coastal Current show a strong seasonal variation, which results in a strong seasonal variation of the sedimentary effect on this mud area. This mud area is a "sink" of the Changjiang's sediment discharge to the sea and its sedimentation is stronger in summer and weaker in winter.
External Shocks, Structural Breaks and Unemployment Hysteresis in China
TONG Guang-rong TONG Guang-rong,Yanjun YANG
Management Science and Engineering , 2010,
Abstract: This paper aims to investigate the unemployment hysteresis hypothesis, in which the endogenously determined break points are incorporated, by using annual data of actual urban unemployment rates during 1978-2009 in China. We treat the break date as unknown and utilize recursive, rolling and sequential tests to determine the endogenous structural breaks which are caused by external shocks. Our empirical findings show that three structural breaks existed in the time series of China’s actual urban unemployment rates and we can not reject the unit-root hypothesis, which is consistent with the hysteresis hypothesis of unemployment. Key words: Structural breaks; Unemployment hysteresis; External shocks
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