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Technologies for Pipelining High-Pour-Point and Viscous Crudes and Their Development

Zhang Jinjun

Strategic Study of CAE 2002, Volume 4, Issue 6,   Pages 71-76

Abstract: 80% of crude produced in China are those crudes with poor flowability, either waxy crudes with high pourChina, and significant technology development has been made in the past over 40 years, typically the pour-pointThe up-to-date research and application of technologies for pour point depression and drag reduction

Keywords： pipelining     paraffin-base crude     heavy crude     pour point depression     drag reduction     chemical additives    

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Astrocytes in depression and Alzheimer’s disease

Frontiers of Medicine 2021, Volume 15, Issue 6,   Pages 829-841 doi: 10.1007/s11684-021-0875-0

Abstract: clinical cases, multiple chronic brain diseases may cause psychosocial and cognitive impairment, such as depressionFor years, complex pathological conditions driven by depression and AD have been widely perceived toInterestingly, correlational research on depression and AD has shown that depression might be a prodromeMounting evidence has shown that astrocytic dysfunction is involved in the progression of depressionherein review the current findings on the roles and mechanisms of astrocytes in the development of depression

Keywords： astrocytes     depression     Alzheimer’s disease     roles     mechanisms    

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Type 2 diabetes is causally associated with depression: a Mendelian randomization analysis

Liping Xuan, Zhiyun Zhao, Xu Jia, Yanan Hou, Tiange Wang, Mian Li, Jieli Lu, Yu Xu, Yuhong Chen, Lu Qi, Weiqing Wang, Yufang Bi, Min Xu

Frontiers of Medicine 2018, Volume 12, Issue 6,   Pages 678-687 doi: 10.1007/s11684-018-0671-7

Abstract:

Type 2 diabetes (T2D) has been associated with a high prevalence of depression.The T2D_GRS was found to be associated with depression with an OR of 1.21 (95% CI: 1.07–1.37) after adjustmentsT2D_GRS as the IV, we similarly found a causal relationship between genetically determined T2D and depressionThough we found no association between the combined effect of the genetic IVs for T2D and depressionwith Egger MR (OR: 0.95, 95% CI: 0.42–2.14), we found an association for T2D and depression with IVW

Keywords： causal modeling     depression     Mendelian randomization     type 2 diabetes    

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Association of maternal depression with dietary intake, growth, and development of preterm infants: a

Han Wang, Hong Zhou, Yan Zhang, Yan Wang, Jing Sun

Frontiers of Medicine 2018, Volume 12, Issue 5,   Pages 533-541 doi: 10.1007/s11684-017-0591-y

Abstract:

This study aimed to explore the association of maternal depression with nutrient intake, growth, and(64), non-depression-preterm (70), depression-fullterm (36), and depression-preterm (31).A multivariate analysis was used to evaluate the effects of maternal depression and preterm birth onThe energy, protein, and carbohydrate intake in the depression group was lower than the recommended amountsThe depression preterm groups indicated the lowest Z-scores for length and weight and the lowest Bayley-III

Keywords： maternal depression     preterm     infant     nutrition     growth     development    

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Dihydroartemisinin increased the abundance of by YAP1 depression that sensitizes hepatocellular carcinoma

Frontiers of Medicine 2023, Volume 17, Issue 4,   Pages 729-746 doi: 10.1007/s11684-022-0978-2

Abstract: The effect of anti-programmed cell death 1 (anti-PD-1) immunotherapy is limited in patients with hepatocellular carcinoma (HCC). Yes-associated protein 1 (YAP1) expression increased in liver tumor cells in early HCC, and Akkermansia muciniphila abundance decreased in the colon. The response to anti-PD-1 treatment is associated with A. muciniphila abundance in many tumors. However, the interaction between A. muciniphila abundance and YAP1 expression remains unclear in HCC. Here, anti-PD-1 treatment decreased A. muciniphila abundance in the colon, but increased YAP1 expression in the tumor cells by mice with liver tumors in situ. Mechanistically, hepatocyte-specific Yap1 knockout (Yap1LKO) maintained bile acid homeostasis in the liver, resulting in an increased abundance of A. muciniphila in the colon. Yap1 knockout enhanced anti-PD-1 efficacy. Therefore, YAP1 inhibition is a potential target for increasing A. muciniphila abundance to promote anti-PD-1 efficacy in liver tumors. Dihydroartemisinin (DHA), acting as YAP1 inhibitor, increased A. muciniphila abundance to sensitize anti-PD-1 therapy. A. muciniphila by gavage increased the number and activation of CD8+ T cells in liver tumor niches during DHA treatment or combination with anti-PD-1. Our findings suggested that the combination anti-PD-1 with DHA is an effective strategy for liver tumor treatment.

Keywords： hepatocellular carcinoma     YAP1     Akkermansia muciniphila     anti-PD-1     dihydroartemisinin     bile acid    

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Fischer-Tropsch synthesis by reduced graphene oxide nanosheets supported cobalt catalysts: Role of support and metal nanoparticle size on catalyst activity and products selectivity

Hasan Oliaei Torshizi, Ali Nakhaei Pour, Ali Mohammadi, Yahya Zamani, Seyed Mehdi Kamali Shahri

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 299-309 doi: 10.1007/s11705-020-1925-x

Abstract: In this paper, a series of cobalt catalysts supported on reduced graphene oxide (rGO) nanosheets with the loading of 5, 15 and 30 wt-% were provided by the impregnation method. The activity of the prepared catalysts is evaluated in the Fischer-Tropsch synthesis (FTS). The prepared catalysts were carefully characterized by nitrogen adsorption-desorption, hydrogen chemisorption, X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, temperature programmed reduction, transmission electron microscopy, and field emission scanning electron microscopy techniques to confirm that cobalt particles were greatly dispersed on the rGO nanosheets. The results showed that with increasing the cobalt loading on the rGO support, the carbon defects are increased and as a consequence, the reduction of cobalt is decreased. The FTS activity results showed that the cobalt-time yield and turnover frequency passed from a maximum for catalyst with the Co average particle size of 15 nm due to the synergetic effect of cobalt reducibility and particle size. The products selectivity results indicated that the methane selectivity decreases, whereas the C selectivity raises with the increasing of the cobalt particle size, which can be explained by chain propagation in the primary chain growth reactions.

Keywords： cobalt catalyst     cobalt particle size     Fischer-Tropsch synthesis     reduced graphene oxide     supported catalyst    

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Integration of VR with BIM to facilitate real-time creation of bill of quantities during the design phase: a proof of concept study

DAVIDSON, John FOWLER, Charalampos PANTAZIS, Massimo SANNINO, Jordan WALKER, Moslem SHEIKHKHOSHKAR, Farzad Pour

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 396-403 doi: 10.1007/s42524-019-0039-y

Abstract: As building practices change, procedures that seemed indispensable at one point can be abandoned for

Keywords： virtual reality     bill of quantities     BIM     Revit     real-time synchronisation    

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Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

Frontiers of Medicine 2022, Volume 16, Issue 2,   Pages 227-239 doi: 10.1007/s11684-021-0896-8

Abstract: adult hippocampal neurogenesis (AHN), whereas promoting AHN can increase stress resilience against depressionThe nonpsychoactive phytocannabinoid cannabidiol (CBD) has been shown to be effective against depressionThese results revealed a previously unknown neural mechanism for neural differentiation and AHN in depression

Keywords： cannabidiol     depression     radial neural stem cells     neurogenesis    

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STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 503-509 doi: 10.15302/J-FASE-2023528

Abstract:

STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Keywords： GREEN     AGRICULTURAL     PROMOTE     POLLUTION     SOURCE     DEVELOPMENT     POINT     STRENGTHENING     CONTROL    

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Trajectory planning of mobile robots using indirect solution of optimal control method in generalized point-to-point

M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 23-28 doi: 10.1007/s11465-012-0304-9

Abstract:

This paper presents an optimal control strategy for optimal trajectory planning of mobile robots by considering nonlinear dynamic model and nonholonomic constraints of the system. The nonholonomic constraints of the system are introduced by a nonintegrable set of differential equations which represent kinematic restriction on the motion. The Lagrange’s principle is employed to derive the nonlinear equations of the system. Then, the optimal path planning of the mobile robot is formulated as an optimal control problem. To set up the problem, the nonlinear equations of the system are assumed as constraints, and a minimum energy objective function is defined. To solve the problem, an indirect solution of the optimal control method is employed, and conditions of the optimality derived as a set of coupled nonlinear differential equations. The optimality equations are solved numerically, and various simulations are performed for a nonholonomic mobile robot to illustrate effectiveness of the proposed method.

Keywords： mobile robot     trajectory planning     nonlinear dynamic     optimal control    

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Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0686-2

Abstract: Initially, the point cloud of the material surface is collected and reconstructed by polynomial responseThen, by establishing the dynamical model of the UES, a point to point (PTP) excavation trajectory planning

Keywords： autonomous excavation     unmanned electric shovel     point cloud     excavation trajectory planning    

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Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 81-104 doi: 10.1007/s11708-019-0653-8

Abstract: The melting point is a typical parameter to describe the peculiarity of LM, and a pivotal factor to considerTherefore, the theoretical exploration into the melting point of LM is an essential issue, which can

Keywords： melting point     liquid metal     crystal     thermodynamics     molecular dynamics    

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DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 607-626 doi: 10.15302/J-FASE-2023517

Abstract: agroecosystems, ditches and ponds benefit the irrigation and drainage, as well as intercepting non-point

Keywords： ditches     ponds     non-point source pollution     mountainous areas     nitrogen     phosphorus    

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A multiscale-contour-based interpolation framework for generating a time-varying quasi-dense point cloud

Chu-hua HUANG,Dong-ming LU,Chang-yu DIAO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 422-434 doi: 10.1631/FITEE.1500316

Abstract: the same model, and two contours which belong to the same view at different times, corresponding to pointThe framework formulates the interpolation of two models as point cloud transport rather than non-rigidOur framework speeds up the reconstruction of a dynamic scene while improving the accuracy of point-pairingWe obtain a higher frame rate, spatio-temporal-coherence, and a quasi-dense point cloud sequence with

Keywords： Multi-view video     Free-viewpoint video     Point-pair     Multiscale-contour-based interpolation     Spatio-temporal-contour     Consistency     Time-varying point cloud sequence    

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Ceramic water filter for point-of-use water treatment in developing countries: Principles, challenges

Haiyan Yang, Shangping Xu, Derek E. Chitwood, Yin Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1254-9

Abstract: Point-of-use (POU) water treatment techniques, which improve drinking water quality at the household

Keywords： Point-of-use water treatment     Ceramic water filter     Bacterial removal     Surface modification     Water quality    

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Title Author Date Type Operation

Technologies for Pipelining High-Pour-Point and Viscous Crudes and Their Development

Zhang Jinjun

Journal Article

Astrocytes in depression and Alzheimer’s disease

Journal Article

Type 2 diabetes is causally associated with depression: a Mendelian randomization analysis

Liping Xuan, Zhiyun Zhao, Xu Jia, Yanan Hou, Tiange Wang, Mian Li, Jieli Lu, Yu Xu, Yuhong Chen, Lu Qi, Weiqing Wang, Yufang Bi, Min Xu

Journal Article

Association of maternal depression with dietary intake, growth, and development of preterm infants: a

Han Wang, Hong Zhou, Yan Zhang, Yan Wang, Jing Sun

Journal Article

Dihydroartemisinin increased the abundance of by YAP1 depression that sensitizes hepatocellular carcinoma

Journal Article

Fischer-Tropsch synthesis by reduced graphene oxide nanosheets supported cobalt catalysts: Role of support and metal nanoparticle size on catalyst activity and products selectivity

Hasan Oliaei Torshizi, Ali Nakhaei Pour, Ali Mohammadi, Yahya Zamani, Seyed Mehdi Kamali Shahri

Journal Article

Integration of VR with BIM to facilitate real-time creation of bill of quantities during the design phase: a proof of concept study

DAVIDSON, John FOWLER, Charalampos PANTAZIS, Massimo SANNINO, Jordan WALKER, Moslem SHEIKHKHOSHKAR, Farzad Pour

Journal Article

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

Journal Article

STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Journal Article

Trajectory planning of mobile robots using indirect solution of optimal control method in generalized point-to-point

M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY

Journal Article

Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based

Journal Article

Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Journal Article

DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND

Journal Article

A multiscale-contour-based interpolation framework for generating a time-varying quasi-dense point cloud

Chu-hua HUANG,Dong-ming LU,Chang-yu DIAO

Journal Article

Ceramic water filter for point-of-use water treatment in developing countries: Principles, challenges

Haiyan Yang, Shangping Xu, Derek E. Chitwood, Yin Wang

Journal Article