bluuebunny/crossref_metadata_2025 huggingface dataset:
Improving Precipitation Estimation Using Convolutional Neural Network
Authors: Pan Baoxiang , Hsu Kuolin , AghaKouchak Amir , Sorooshian Soroosh
Published: January 2019

Precipitation process is generally considered to be poorly represented in numerical weather/climate models. Statistical downscaling (SD) methods, which relate precipitation with model resolved dynamics, often provide more accurate precipitation estimates compared to model's raw precipitation products. We introduce the convolutional neural network model to foster this aspect of SD for daily precipitation prediction. Specifically, we restrict the predictors to the variables that are directly resolved by discretizing the atmospheric dynamics equations. In this sense, our model works as an alternative to the existing precipitation‐related parameterization schemes for numerical precipitation estimation. We train the model to learn precipitation‐related dynamical features from the surrounding dynamical fields by optimizing a hierarchical set of spatial convolution kernels. We test the model at 14 geogrid points across the contiguous United States. Results show that provided with enough data, precipitation estimates from the convolutional neural network model outperform the reanalysis precipitation products, as well as SD products using linear regression, nearest neighbor, random forest, or fully connected deep neural network. Evaluation for the test set suggests that the improvements can be seamlessly transferred to numerical weather modeling for improving precipitation prediction. Based on the default network, we examine the impact of the network architectures on model performance. Also, we offer simple visualization and analyzing approaches to interpret the models and their results. Our study contributes to the following two aspects: First, we offer a novel approach to enhance numerical precipitation estimation; second, the proposed model provides important implications for improving precipitation‐related parameterization schemes using a data‐driven approach.
Quantifying non-specific interactionsvialiquid chromatography
Authors: Shimizu Seishi , Abbott Steven , Adamska Katarzyna , Voelkel Adam
Published: January 2019

Statistical thermodynamics enables the quantification of non-specific cosolute interactions, overcoming the problems caused by the previous stoichiometric binding models.
Colorimetric method for glucose detection with enhanced signal intensity using ZnFe2O4–carbon nanotube–glucose oxidase composite material
Authors: Wang Chengke , Li Jiangyu , Tan Rong , Wang Qingqing , Zhang Zexiang
Published: January 2019

Preparation of peroxidase-mimic ZnFe2O4–carbon nanotube (CNT)–glucose oxidase (GOD) composite material for sensitive detection of glucose.
A dual signal amplification method for exosome detection based on DNA dendrimer self-assembly
Authors: Gao Mei-Ling , He Fang , Yin Bin-Cheng , Ye Bang-Ce
Published: January 2019

An increasing number of studies have found that circulating exosomes play a vital role in the occurrence and metastasis of cancer.
Chitosan sulfate inhibits angiogenesisviablocking the VEGF/VEGFR2 pathway and suppresses tumor growthin vivo
Authors: Li Yingying , Wang Wei , Zhang Yapei , Wang Xinyu , Gao Xuefeng , Yuan Zhi , Li Yu
Published: January 2019

SCTS inhibits neovascularization by blocking the VEGF/VEGFR2 signal pathway and exerts anti-tumor effects.
Energy and orientation independence of the channel branching in Ne* + ND3 chemi-ionisation
Authors: Gordon Sean D. S. , Osterwalder Andreas
Published: January 2019

Collisions between metastable neon and ammonia result in either dissociative or Penning ionisation. Neither process exhibits a steric effect.
Pyruvic acid proton and hydrogen transfer reactions in clusters
Authors: Grygoryeva Kateryna , Ončák Milan , Pysanenko Andriy , Fárník Michal
Published: January 2019

We investigate ion chemistry in pyruvic acid (PA) clusters in a molecular beam experiment.
The effect of two types of dibenzoannulation of pentalene on molecular energies and magnetically induced currents
Authors: Baranac-Stojanović Marija , Stojanović Milovan
Published: January 2019

DFT calculations provide insight into the factors responsible for the energy trend of two isomeric dibenzopentalenes and the types of magnetically induced currents.
Mechanism of the toxic action of cationic G5 and G7 PAMAM dendrimers in the cyanobacteriumAnabaenasp. PCC7120
Authors: Tamayo-Belda Miguel , González-Pleiter Miguel , Pulido-Reyes Gerardo , Martin-Betancor Keila , Leganés Francisco , Rosal Roberto , Fernández-Piñas Francisca
Published: January 2019

Cyanobacterial physiology is impaired by high-generation dendrimers.
Comparative studies of DHA-enriched phosphatidylcholine and recombination of DHA-ethyl ester with egg phosphatidylcholine on ameliorating memory and cognitive deficiency in SAMP8 mice
Authors: Wang Cheng-Cheng , Guo Ying , Zhou Miao-Miao , Xue Chang-Hu , Chang Yao-Guang , Zhang Tian-Tian , Wang Yu-Ming
Published: January 2019

DHA-PLs (DHA-PC) could not be substituted by recombination of commercial fish oil with DHA-free PC in alleviating age-related memory loss and cognitive deficiency in SAMP8 mice.
Impact of the partial replacement of fish meal with a chloroplast rich fraction on the growth and selected nutrient profile of zebrafish (Danio rerio)
Authors: Gedi Mohamed A. , Magee Kieran J. , Darwish Randa , Eakpetch Patchaniya , Young Iain , Gray David A.
Published: January 2019

Increasing global aquaculture production, is putting pressure on fishmeal and fish oil supply. There is therefore a growing search for more sustainable sources of proteins and polyunsaturated fatty acids as fish feed ingredients.
Correction: A UV digital micromirror spectrometer for dispersive AFS: spectral interference in simultaneous determination of Se and Pb
Authors: Tao Chen , Li Chunsheng , Li Yingchao , Wang Hongxia , Zhang Yaru , Zhou Zhiheng , Mao Xuefei , Ma Zhenyu , Tian Di
Published: January 2019

Correction for ‘A UV digital micromirror spectrometer for dispersive AFS: spectral interference in simultaneous determination of Se and Pb’ by Chen Tao et al., J. Anal. At. Spectrom., 2018, 33, 2098–2106.
The influence of liquid crystals on the properties of sisal fibre polyurethanes with multi-shape memory effects
Authors: Pan Lulu , Ban Jianfeng , Ren Li , Zhang Zuocai , Peng Qingyuan , Lu Shaorong
Published: January 2019

LC-SF-SMPUs show excellent multi-shape memory properties.
Sustainable synthesis of nitrogen-doped porous carbon with improved electrocatalytic performance for hydrogen evolution
Authors: Sang Xinxin , Chen Jianping , Jing Mingxiao , Shi Gang , Ni Caihua , Wang Dawei , Jin Wei
Published: January 2019

The rational design of a sustainable synthetic pathway to develop carbonaceous materials with efficient electrocatalytic activity for energy conversion is a great challenge.
Thermoelectric terahertz photodetectors based on selenium-doped black phosphorus flakes
Authors: Viti Leonardo , Politano Antonio , Zhang Kai , Vitiello Miriam Serena
Published: January 2019

We here demonstrate terahertz detection activated by photo-thermoelectric effect in selenium-doped black phosphorus flakes.
Healing of osteoporotic bone defects by micro-/nano-structured calcium phosphate bioceramics
Authors: Zhao Rui , Chen Siyu , Yuan Bo , Chen Xuening , Yang Xi , Song Yueming , Tang Hai , Yang Xiao , Zhu Xiangdong , Zhang Xingdong
Published: January 2019

The micro-/nano-structured calcium phosphate bioceramic exhibited a higher new bone substitution rate in an osteoporotic bone defect rat model.
Ultra-large optical modulation of a size-tunable flexible electrochromic honeycomb mesoporous tungsten oxide film
Authors: Xu Shan , Li Xingyun , Ou Yan , Xu Qingchi , Zhang Xiu Ming , Xu Jun , Weng Jian
Published: January 2019

A size tunable flexible electrochromic honeycomb mesoporous tungsten oxide film with ultra-large optical modulation is achieved by breath figure self-assembly of polymer-like ultrathin W18O49 nanowires.
Polymer–silica hybrid self-healing nano/microcapsules with enhanced thermal and mechanical stability
Authors: Zhou Xin , Li Weiping , Zhu Liqun , Ye Hui , Liu Huicong
Published: January 2019

Robust polymer–silica hybrid nano/microcapsules are prepared and characterized; they have excellent mechanical property and self-healing ability in a coating.
DNA–affibody nanoparticle delivery system for cisplatin-based breast cancer chemotherapy
Authors: Zhang Chao , Zhang HongLei , Han MengNan , Yang XueLi , Pei ChaoHong , Xu ZhiDong , Du Jie , Li Wei , Chen Shengxi
Published: January 2019

The novel nano-drug cisplatin-DNA tetrahedron-affibody has high specificity, high efficacy, and low toxicity for the treatment of HER2-overexpressing breast cancers.
An accurate ground state potential surface for the scattering reaction F− + F2(v,j) → F2(v′,j′) + F−
Authors: Wang Dequan , Wang Deguo , Fu Liwei , Wang Jianyu , Shi Guang , Li Yanchun , Huang Xuri
Published: January 2019

The accuracy of three-dimensional adiabatic potential energies for F3− ions is reduced with higher level ab initio methods.
Site-specific labeling of an anti-MUC1 antibody: probing the effects of conjugation and linker chemistry on the internalization process
Authors: Xu Hongjiao , Gan Lu , Han Ying , Da Yifan , Xiong Jiale , Hong Sihua , Zhao Qian , Song Nazi , Cai Xiaoqing , Jiang Xianxing
Published: January 2019

Four antibody conjugates were prepared to investigate how the conjugation and linker chemistry would impact ADC endocytosis and intracellular trafficking.
Strategies for the synthesis of fluorinated polyesters
Authors: Zhao Xiaoman , Noro Jennifer , Fu Jiajia , Silva Carla , Cavaco-Paulo Artur
Published: January 2019

In this work we synthetized three fluorinated polyesters from dimethyl tetrafluorosuccinate (DMTFS), dimethyl hexafluoroglutarate (DMHFG), and dimethyl octafluoroadipate (DMOFA) and ethylene glycol.
Tunable enzyme responses in amphiphilic nanoassemblies through alterations in the unimer–aggregate equilibrium
Authors: Gao Jingjing , Wang Hui , Zhuang Jiaming , Thayumanavan S.
Published: January 2019

Developing design rules that offer tailorability in materials' response to enzymes is of great importance, as such materials are of interest in a variety of biomedical applications including sensing, diagnostics and drug delivery.
Programmable intracellular DNA biocomputing circuits for reliable cell recognitions
Authors: Gong Xue , Wei Jie , Liu Jing , Li Ruomeng , Liu Xiaoqing , Wang Fuan
Published: January 2019

A reconfigurable hybridization-based chain reaction was introduced to assemble enzyme-free DNA logic gates and advanced logic circuits for analyzing multiple endogenous miRNA expressions and discriminating different living cells.
Multi-stimuli responsive supramolecular gels based on a D–π–A structural cyanostilbene derivative with aggregation induced emission properties
Authors: Wang Xiaoxu , Ding Zeyang , Ma Yao , Zhang Yuping , Shang Hongxing , Jiang Shimei
Published: January 2019

Reversible gel–sol transitions accompanied by fluorescence switching of BAPBIA gel upon multiple stimuli including heat, light, TBAF and TFA.
Hydrogels composed of hyaluronic acid and dendritic ELPs: hierarchical structure and physical properties
Authors: Shmidov Yulia , Zhou Mingjun , Yosefi Gal , Bitton Ronit , Matson John B.
Published: January 2019

Hydrogels that mimic the native extracellular matrix were prepared from hyaluronic acid (HA) and amine-terminated dendritic elastin-like peptides (denELPs) of generations 1, 2, and 3 (G1, 2, and 3) as crosslinking units.
Preparation of near-infrared laser responsive hydrogels with enhanced laser marking performance
Authors: Cao Zheng , Chen Yuyuan , Zhang Cheng , Cheng Junfeng , Wu Dun , Ma Wenzhong , Liu Chunlin , Fu Zhisheng
Published: January 2019

Polystyrene modified bismuth oxide particles (PS@Bi2O3) were prepared and characterized by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM).
Simulation of H2/CH4 mixture permeation through MOF membranes using non-equilibrium molecular dynamics
Authors: Velioglu Sadiye , Keskin Seda
Published: January 2019

External field non-equilibrium molecular dynamics (NEMD) simulations were used to directly compute gas permeation through MOF membranes.
Achieving long-term anticorrosionviathe inhibition of graphene's electrical activity
Authors: Ding Jiheng , Zhao Hongran , Ji Dong , Xu Beiyu , Zhao Xinpeng , Wang Zhen , Wang Donglin , Zhou Qingbo , Yu Haibin
Published: January 2019

Novel B-doped functionalized graphene: an excellent filler for enhancing the long-term barrier properties of polyurethane coatings.
Exfoliation of amorphous phthalocyanine conjugated polymers into ultrathin nanosheets for highly efficient oxygen reduction
Authors: Liu Wenping , Wang Chiming , Zhang Lijie , Pan Houhe , Liu Wenbo , Chen Jun , Yang Dongjiang , Xiang Yanjuan , Wang Kang , Jiang Jianzhuang , Yao Xiangdong
Published: January 2019

Defects and disorders in the individual layers of phthalocyanine CPs diminish interlayer π–π stacking interaction, favoring the exfoliation of the CPs into ultrathin nanosheets with a high yield.
A water-soluble two-dimensional supramolecular organic framework with aggregation-induced emission for DNA affinity and live-cell imaging
Authors: Liu Hui , Zhang Zhaohui , Zhao Yingjie , Zhou Yongxin , Xue Bo , Han Yuchun , Wang Yilin , Mu Xueluer , Zang Shaoli , Zhou Xianfeng , Li Zhibo
Published: January 2019

A water-soluble two-dimensional supramolecular organic framework (2D SOF) with AIE effect was prepared and exhibited excellent live-cell imaging behavior.
Synaptotagmin-7, a binding protein of P53, inhibits the senescence and promotes the tumorigenicity of lung cancer cells
Authors: Fei Zhenhua , Gao Wei , Xie Raoying , Feng Ganzhu , Chen Xiaolin , Jiang Yiyan
Published: January 2019

Lung cancer has been one of the most common malignancies in the world. Cell senescence has been recognized as the avenue to inhibit tumor progression. However, the mechanisms remain poorly understood. In the present study, we have shown that synaptotagmin-7 (SYT7) expression was up-regulated in lung cancer. SYT7 also promoted the growth and colony formation of lung cancer cells and inhibited their senescence. In a molecular mechanism study, SYT7 was shown to interact with P53 and to potentiate the interaction between P53 and MDM2. Taken together, the present study demonstrates the oncogenic roles of SYT7 in lung cancer, and suggests that SYT7 may be a good therapeutic target for lung cancer treatment.
Hybrid interconnect network for on‐chip low‐power clock distribution
Authors: Ding Q. , Mak T.
Published: January 2019

Clock is regarded as the heartbeat of modern synchronous digital integrated circuits. However, with the CMOS technology shrinking, it becomes critical to deliver high‐quality global clock signal with low propagation delay and hence conventional metallic interconnect seems to meet its bottleneck, as a clock distribution network (CDN) might consume up to 50% of the overall power. To address these problems, this Letter proposes a novel combination of wireless and conventional metallic interconnect to improve the performance of on‐chip clock distribution. By incorporating integrated wireless clock transceivers and efficient modulation technique, overall performance has been increased significantly with a total delay reduction of 66.8% compared with a new cornerstone tapered H‐tree model from 400 to 130 ps. In addition, clock uncertainties are now predictable according to the displacement of transceivers, 33 ps of clock skew at 2.5 GHz input with highly unbalanced loads could be found within the proposed CDN, and hence, indicates a promising potential of future high‐performance on‐chip clock distribution.
Optimal and efficient designs of Gaussian‐tailed non‐linearity in symmetric α‐stable noise
Authors: Luo Zhongtao , Guo Renming , Zhang Xinshu , Nie Yaqin
Published: January 2019

This Letter proposes two methods for the Gaussian‐tailed zero‐memory non‐linearity (GZMNL) design in symmetric ‐stable noise. The optimal GZMNL is designed by maximising the efficacy via a derivative‐free method. The efficient GZMNL is designed by polynomial fitting with the derived coefficients. Simulated results demonstrate that the GZMNL designs are nearly as optimal as the locally optimal detector, with an advantage of closed‐form formulas.
Clamping diodes failure identification based on the discrete wavelet decomposition of the magnetic near‐field
Authors: Lahouar Ali , Hamouda Mahmoud , Abari Ibtissem , Slama Jaleleddine Ben Hadj
Published: January 2019

Diagnosis of static power converters for distributed power generation systems and electric machines is nowadays a common concern of researchers interested in the reliability of power electronic systems. The conventional diagnosis approaches such as those based on voltage, current, and flux analysis have already been well developed in recent decades. Recently, it was shown that the magnetic near‐field measured above the power converter may carry substantial information about the health state of power components. This study proposes, therefore, a novel non‐invasive diagnosis method based on the discrete wavelet decomposition of the near‐field metered above a static power converter. It is proved that each faulty component can be identified by its appropriate electromagnetic signature. Accordingly, all faulty cases are easily distinguishable, which makes fault classification possible using very simple tools such as envelope detection. The proposed method is validated through experimental tests carried out on a three‐phase three‐level neutral point clamped inverter operating with faulty clamping diodes. Its advantages compared to previous diagnosis methods are also discussed.
Forecasting photovoltaics/concentrated photovoltaics at national level – Portugal experience
Authors: Esteves Joao , Pastor Ricardo , Pinho da Silva Nuno , Pestana Rui , Chen Zhibao
Published: January 2019

The solar power installed capacity all over the world is growing and this renewable energy technology is playing an important role to build a clean energy future. The solar forecast is a necessary tool for the transmission system operator in order to maintain the electricity network safety and reliability. This study aims to report the experience of R&D Nester in the solar forecast at national level in Portugal, forecasting for all solar plants connected to the very high voltage (400, 220 and 150 kV) and high voltage (60 kV) networks, providing this information to the Portuguese transmission system operator, REN. A novel approach to calculate cloud index from images from a sky camera is presented.
New AC & DC hybrid power supply system and its reliability analysis in data centre
Authors: He Jianzong , Xiao Xiang , Zhong Rongfu , Huang Weixiong , Li Donghui , Chen Qingqi
Published: January 2019

This paper designs a new AC & DC hybrid power supply system for data centres, which includes photostatic power generation, wind power generation, solar thermal power generation, storage power systems, and different types of loads. According to the above‐mentioned, the paper first presents the reliability evaluation indicators and analysis methods applicable to the new AC & DC hybrid power supply system for data centres, which are for solving the problem of the reliability evaluation under uncertain parameters and load parameters of the new data centre power supply system. The paper describes the new power supply system reliability indicators and evaluation methods in detail. The problem of the power supply reliability in the new AC & DC hybrid power supply system in the data centre is analysed in a targeted manner by adopting actual examples, then it is verified that the power supply reliability of the new AC & DC hybrid power supply system can perfectly meet the qualification of the A‐class data centre power supply. The reliability of assessment index and analysis methods presented here will be two simple and superior analysing tools.
Novel adapted de‐loading control strategy for PV generation participating in grid frequency regulation
Authors: Yan Gangui , Liang Shuai , Jia Qi , Cai Yuru
Published: January 2019

Existence PV generation mostly operates under the Maximum Power Point Tracking (MPPT) mode and has no ability to increase or decrease active power, accordingly, PV generation does not participate in grid frequency regulation. Due to an increasing penetration of grid‐connected PV generation, when a frequency contingency event occurs, grid may have neither enough inertia response nor governor support and frequency deviation may have a risk of exceeding the limit. Therefore, a novel adapted de‐loading control strategy without MPPT for grid‐connected inverters is proposed here. This control strategy provides a reserve power in PV system to meet the frequency control demand and an online output Active Power‐Voltage Matching (APVM) technique, which is generated as a control flowchart, is implemented in this control strategy to make it possible to adjust PV output voltage performance matching different active power demand with different operation modes. The proposed control strategy of PVs is simulated using PSCAD/EMTDC Software. Results verify the correctness and effectiveness of the proposed adapted de‐loading control strategy under several operating conditions.
Temperature field simulation and ampacity optimisation of 500 kV HVDC cable
Authors: Zhou Boda , Le Yanjie , Fang Yalin , Yang Fan , Dai Tao , Sun Lu , Liu Jiapeng , Zou Lekai
Published: January 2019

The temperature distribution of the submarine cable is an important parameter during the operation. In order to lift the efficiency of heat dissipation during the high‐voltage direct current (HVDC) cable thermal cycling test, this study presents a method of cooling the cable using a cooling pipe with circulating water. A three‐dimensional mode based on the thermal‐fluid coupled model was established for 500 kV HVDC submarine cable by using finite element simulation software COMSOL Multiphysics and Fluent. The temperature field distribution and carrying ampacity of the HVDC submarine cables were analysed and compared under two cooling modes including bipolar double pipe and bipolar single pipe. The results indicate that both cooling modes can lift the current carrying ampacity of the cable; the bipolar double tube cooling mode performs better in cooling, a tiny circulating water velocity can significantly reduce the temperature of the submarine cable. Thus both suitable cooling mode and circulating water velocity were determined to accelerate the heat dissipation of the submarine cable during the thermal cycling test.
Coordinating fault ride through strategy for connection of offshore wind farms using VSC‐HVDC under single polar fault
Authors: Ge Siyang , Liu Kaipei , Qin Liang , Ran Xiaohong , Li Gang , Pu Qingxin , Liu Dong
Published: January 2019

Bipolar VSC‐HVDC scheme is one of the most feasible transmission technologies to integrate offshore wind energy source. While one pole stops by suffering even a transient fault, the other pole will block soon due to the overcurrent, then the wind turbines will trip which would cause a critical impact on power system. A novel coordinating fault ride through strategy is proposed to solve the problem here. First, the operational behaviour of DFIG under the integration voltage regulation is analysed; Second, based on the power generation characteristics of DFIG with different terminal voltage, a coordinating strategy without any additional communications requirements is presented, utilising the flexibility power electronics converters both in DFIG and VSC‐HVDC; Finally, the adaptive control scheme considering the constraints of both wind farms and DC system is verified by PSCAD/EMTDC, and the results show that the strategy can effectively regulate the current through the non‐fault pole and provide active support for the AC grid during transient faults.
Improved Ni II oscillator strengths from quasar absorption systems
Authors: Boissé P. , Bergeron J.
Published: January 2019

Aims. We wish to improve the accuracy of oscillator strength values for several Ni II UV transitions and measure for the first time the f-value of a few other weak transitions for which no laboratory nor astronomical measurement is presently available.

Methods. Four quasars displaying five damped Lyman α systems with relatively strong Ni II lines were selected. From the analysis of the excellent high resolution spectra available, we determined the relative f-value of Ni II transitions by comparing the strength of the corresponding absorption profiles. To quantify the latter, we used the apparent optical depth method for resolved features, equivalent width measurements for optically thin lines and line fitting with VPFIT. Absolute f-values were then derived by relating our determinations to the available laboratory measurements.

Results. Thanks to the good signal-to-noise ratio of the spectra and to the suitable properties of the absorption systems investigated, we are able to significantly improve the determination of the f-value for 13 Ni II transitions falling in the 1317–1804 Å interval. Our results are found to be consistent with other earlier determinations for ten of these transitions; our median relative accuracy for these f-values is 6.5%. For three weak transitions near 1502, 1773, and 1804 Å, which have not been detected previously in astronomical spectra, we can get a first measurement of their f-value.

Conclusions. Our work illustrates that, thanks to the redshift and the absence of variations of physical constants on cosmological scales, the analysis of absorption lines induced by remote gas in quasar spectra can nowadays provide valuable constraints on atomic data in the UV range.
Theoretical investigation of energy levels and transition data for P II
Authors: Rynkun P. , Radžiūtė L. , Gaigalas G. , Jönsson P.
Published: January 2019

Aims. The main goal of this paper is to present accurate and extensive transition data for the P II ion. These data are useful in various astrophysical applications.

Methods. The multiconfiguration Dirac–Hartree–Fock (MCDHF) and relativistic configuration interaction (RCI) methods, which are implemented in the general-purpose relativistic atomic structure package GRASP2K, were used in the present work. In the RCI calculations the transverse-photon (Breit) interaction, the vacuum polarization, and the self-energy corrections were included.

Results. Energy spectra are presented for 48 even states of the 3s23p2, 3s23p{4p, 4f, 5p, 5f, 6p}, 3s3p23d configurations, and for 58 odd states of the 3s3p3, 3s23p{3d, 4s, 4d, 5s, 5d, 6s} configurations in the P II ion. Electric dipole (E1) transition data are computed between these states along with the corresponding lifetimes. The average uncertainty of the computed transition energies is between five and ten times smaller than the uncertainties from previous calculations. The computed lifetimes for the 3s23p4s3Po states are within the error bars of the most current experimental values.
On the construction of nearly time optimal continuous feedback laws around switching manifolds
Authors: Ancona Fabio , Hermosilla Cristopher
Published: January 2019

In this paper, we address the question of the construction of a nearly time optimal feedback law for a minimum time optimal control problem, which is robust with respect to internal and external perturbations. For this purpose we take as starting point an optimal synthesis, which is a suitable collection of optimal trajectories. The construction we exhibit depends exclusively on the initial data obtained from the optimal feedback which is assumed to be known.
Hydrograph modeling with rational modified method
Authors: Widasmara Mega Yulisetya , Hadi Pramono , Christanto Nugroho
Published: January 2019

Water, a vital natural resource for a human being, could bring negative effects such as flood and landslides. The best way to show the hydrological process is called “model”. One of them is Modified Rational Method (MRM). There are several types of MRM base on its equation modification. Hydrological mass balance or kinematic wave in order to route the flow. With this model modification, the output of the model is not only peak discharge but also unit hydrograph. Model modification was done in the calculation of peak discharges by assigning the C value (coefficient runoff), A value (area) and land characteristic (soil texture, Manning roughness coefficient, and saturation coefficient in the pixel basis. PCRaster software allows us to perform discharge calculation on each pixel. Flow accumulation by using kinematic wave was done to get the unit hydrograph. Three (3) flood events were used to run the model validation, i.e. January 21, January 22, and February 10, 2016. Each event has different rainfall characteristics. The result of this model was DRO hydrograph. Based on the baseflow separation of the observed hydrograph as well as the hydrograph from the model, we found that the flow through the outlet during discharge recession is the base flow. The accuracy value is quite good, i.e. 10–30 %. The result of the model shows a different response between direct runoff and base flow, while time to peak was faster than the recession time.
The improvement of solidwaste management in Cibodas Botanical Garden through environmental economic valuation using the travel cost method
Authors: Juwana Iwan , Albar Muhammad Sirdar
Published: January 2019

Cibodas Botanical Garden (CBG) is believed to have high environmental value for its function as conservation area and beautiful scenery. However, prior to this research, there is lack of economic valuation to determine the total value of CBG, including its environment. The local government, on the other hand, needs such environmental economic valuation to execute better decisions related to the CBG. This study aims at providing the mostly-needed economic valuation through the application of Travel Cost Method. The Travel Cost Method (TCM) is a method to calculate the economic value of products or services that do not own market value. This method utilises total cost of consumers who travel to certain places, preferably tourist destinations. The cost spent by consumers are considered as their willingness to pay (WTP) for the visited destination(s). In this study, TCM is used by preparing questionnaires for Cibodas visitors, analysing the results of the questionnaires, calculating the total economic value (TEV) of Cibodas, determining the consumer surplus, and proposing environmental programs at CBG. At the end, it was calculated that the TEV of Cibodas Botanical Garden is IDR113,072,532,700 with average WTP of the visitors IDR202,484 per visitor and the consumer surplus of IDR32,344 per visitor. Also, this study reveals that solid waste management improvement at CBG can be funded by potential income from the consumer surplus.
Landuse change monitoring and population density analysis of Penjaringan, Cengkareng, and Cakung Urban Area in Jakarta Province
Authors: Putri Ratih Fitria , Wibirama Sunu , Giyarsih Sri Rum , Pradana Aditya , Kusmiati Yanti
Published: January 2019

Rapid landuse change in an urban area is inevitable. Jakarta as the capital city of Indonesia is experiencing rapid landuse change. Jakarta is the centre of administration, economic activities, and entertainment pull people coming in to Jakarta. The dynamics of demography in Jakarta influences landuse change strongly. This research use three districts in Jakarta to see how landuse change over period of time. They are Penjaringan, Cengkareng, and Cakungsubdistrict. By combining landuse data, demographic features, and spatial data, such as satellite imagery, landuse change can be monitored and explained. The most significant landuse changes are industrial area and settlements. Both landuses are expanding. Meanwhile open spaces are decresing in size. This happens due to high demand of settlements caused by migrants coming in to work in industrial are. The result of this phenomenon is slum area in the city and lack of opened green spaces that can degrade environmental quality.
Multi-channel analysis of surface wave method for geotechnical site characterization in Yogyakarta, Indonesia
Authors: Le Ngal Nwai , Pramumijoyo Subagyo , Satyarno Iman , Brotopuspito Kirbani Sri , Kiyono Junji , Hartantyo Eddy
Published: January 2019

On May 27th2006, Yogyakarta earthquake happened with 6.3 Mw. It was causing widespread destruction and loss of life and property. The average shear wave velocity to 30 m (Vs30) is useful parameter for classifying sites to predict their potential to amplify seismic shaking (Boore, 2004) [1]. Shear wave velocity is one of the most influential factors of the ground motion. The average shear wave velocity for the top 30 m of soil is referred to as Vs30. In this study, the Vs30 values were calculated by using multichannel analysis of surface waves (MASW) method. The Multichannel Analysis of Surface Waves (MASW) method was introduced by Park et al. (1999). Multi-channel Analysis of Surface Waves (MASW) is non-invasive method of estimating the shear-wave velocity profile. It utilizes the dispersive properties of Rayleigh waves for imaging the subsurface layers. MASW surveys can be divided into active and passive surveys. In active MASW method, surface waves can be easily generated by an impulsive source like a hammer, sledge hammer, weight drops, accelerated weight drops and explosive. Seismic measurements were carried out 44 locations in Yogyakarta province, in Indonesia. The dispersion data of the recorded Rayleigh waves were processed by using Seisimager software to obtain shear wave velocity profiles of the studied area. The average shear wave velocities of the soil obtained are ranging from 200 ms-1 to 988 ms-1, respectively.
Accident risk management strategy at un-signalized intersection
Authors: da Costa Don Gaspar Noesaku , Malkhamah Siti , Suparma Latif Budi
Published: January 2019

The increasing of traffic sign and/or light violations is a commonly views in many countries. Even it was occurred intentionally which indicates that drivers accept its possible consequences. The constant fatality index of motorcyclist strongly indicates that determinant variables behind their risky behaviour and/or accident involvement should be further investigated and managed systematically. Accordingly, this paper focuses on motorcyclist accident risk management, particularly at un-signalized segment, by combining the aggregated-individual and expert expectancy approaches. Therefore a questionnaire and braking manoeuver test were undertaken at closed circuit course. The result shows that speeding behaviour was caused by trip purpose and triggered by perception about their braking and hazard detection abilities. In addition, only 24 % of 56 % of riders who believed that their braking capability was above average could apply high braking capability so that most riders might involve in crash due to the average critical crossing gap choice at the monitored intersection. This explains that their speed choice should be deal with their braking capability. However, the overlay policy at the monitored intersection indicates that the unbalanced between mobility and safety still to be a latent issue, which virtually could be bridged by using a standardized braking capability.
Analysis of Java Island’s ozone layer and ultra violet index variability based on satellite data
Authors: Komala Ninong
Published: January 2019

The ozone layer has a very important role in our atmosphere because it can protect every living on the surface of the earth against harmful Ultra Violet-B radiation. This study aims to discuss and analyze the linkages of ozone layer and Ultra Violet index (UVI) in Java Island and using of FFT to find the period that dominates the ozone layer and UVI variation. The results obtained are characteristic of ozone layer and UVI as well as linkage of UVI to ozone layer in Java Island. Using data of the Ozone Monitoring Instrument (OMI) sensor on AURA satellites from 2005—2016 has been obtained monthly, seasonal and annual characteristics for ozone and UVI and the period dominating the variation of the ozone layer and UVI. The ozone layer varied between 238 DU to 277 DU, the annual variation pattern peaked in October and the minimum in January. The UVI varies between 7.8 and 13.6. The annual variation of UVI peaked in October and the minimum in June. Linear regression of the UVI with ozone in December, January and February (DJF) showed a negative correlation coefficient of 0.77 which means there is a strong correlation between decreasing of ozone concentration with increasing of UVI. Variability of Java Island’s ozone layer is dominated by six month, 12-months and 28-months cycles. While UVI most dominated by the cycle of 6 months and 12 months.
The impact of climate variability on tobacco productivity over Temanggung Regency, Indonesia
Authors: Syahid Muttaqin Andi , Suarma Utia , Nurjani Emilya , Kurniadhini Faricha , Prabaningrum Ratna , Wulandari Retno
Published: January 2019

Indonesia is among the most affected regions by climate variability and change. Located between the Pacific and the Indian Ocean, Indonesia is mostly influenced by some climate variabilities, such as the monsoon, El-Nino Southern Oscillation (ENSO), and Indian Ocean Dipole (IOD). These climate variabilities affect significantly on the Indonesian rainfall that further increase the chances of crop failure, specifically on the tobacco yield over Temanggung Regency which is known as the producer of good quality tobacco in Indonesia. Tobacco needs a sufficient dry condition prior to the harvest stage due to maintains its productivity and leaf quality. This ideal condition could be achieved when the dry season, typically in the mid of the year for Temanggung, is not affected by any wet climate variability. Moreover, based on this study, it was found that there was the most remarkable decline in tobacco productivity in 2016 since the required dry condition was interrupted by the prolonged significant rainfall which depicted by strong mid-year negative-IOD indices. The analysis utilized the dataset of tobacco productivity, daily rainfall intensity, and the indices of monsoon, ENSO, and IOD for the period of seven years, from 2010– 2016. This study concludes that the climate variabilities give a huge contribution to the profitable tobacco cultivation. Furthermore, efforts to adapt and to mitigate the impacts of the climate variability in Indonesia, specifically for the agriculture sector, is needed by way of increasing the various stakeholder's knowledge that involved in policy planning and decision-making as well as involving the farmers in the training on climate adaptation and mitigation.
Thermal comfort and settlements quality for eco-settlement based management in Yogyakarta
Authors: Marwasta Djaka , Nurhidayat Muhamad
Published: January 2019

The aims of this research are to know the settlement quality and thermal comfort and to study the prospect of eco-settlement based settlement planning and management in Yogyakarta City. The research method is quantitative method by combines structured interview, field survey, and secondary data analysis. The settlement quality was obtained through satellite imagery processing and structured interview with purposive sampling technique. The thermal comfort of the settlement was obtained through temperature humidity index (THI) analysis, where the data was taken at the temperature and relative humidity on systematic random sampling (grid). Data analysis was done descriptively by looking at spatial aspect. The results of this research showed that the distribution pattern of settlement quality is spreading. The result of thermal comfort analysis showed that THI value was 27 to 29. It also showed that the whole area was included in the uncomfortable category. The direction of settlement arrangement based on eco-settlement in the study area was divided into ecological, socio-economic, and institutional aspects. The ecological aspect emphasis on the direction of green open space planning, environmental sanitation management, and waste management. The settlement arrangement of eco-settlement concept should be supported by a compatible institutional system and program.
MKL-1 regulates the stem cell marker. CD44 in breast cancer cells
Authors: Dai Zhou-Tong , Yao Ao , Xiang Yuan , Li Jia Peng , Guo Wei , Zhang Hui-Min , Zhang Hui-Min , Huang Feng , Li Han-Han , Zhang Zi-Jiang , Li Hui , Liao Xing Hua
Published: January 2019

CD44, cluster of differentiation 44 is a typical marker of stem cells. At present, it has been found that CD44 is prevalent in various human malignant tumors, but its expression regulation mechanism is still not clear. The initiation of gene expression, the modification of RNA levels, and the regulation of protein levels are the main factors affecting the expression level of genes, and the most critical one is the regulation of gene expression by signaling pathways. Up to now, there has been no report on the role of MKL-1 in the cloning of the cd44 promoter. Therefore, this study intends to clone the cd44 gene promoter, construct its luciferase reporter gene vector, transfect the MKL-1 overexpression vector, and analyze how it affects transcriptional activity, in order to further study the expression regulation of cd44. The mechanism provides a powerful tool in the future.
MKL1 and STAT3 activate the activity of the luciferase reporter plasmid containing the CAAP1 gene promoter
Authors: Li Jun-Yan , Yu Zhu , Wang Feng-Yun
Published: January 2019

Breast cancer is the leading cause of cancer death in women worldwide. The etiology of the disease is not yet clear. We know that MKL1 and STAT3 play an important part in the development and progression of breast cancer. CAAP1 is a ubiquitous and highly conserved protein that is closely related to the apoptotic process of tumors. However, the definitive transcriptional mechanism of the CAAP1 gene is still unclear. In our study, we constructed a luciferase reporter plasmid for the human CAAP1 gene promoter. Then one or both of the two overexpression vectors of MKL-1 and STAT3 were co-transfected into MCF-7 cells with CAAP1 promoter plasmid, and we then tested activation of the CAAP1 promoter by luciferase reporter assay. The results show that compared with the transfected pcDNA3.1 group, MKL1 can evidently increase the transcription activity of the CAAP1 gene promoter, while the STAT3 group can slightly upregulate the transcription activity of the CAAP1 gene promoter. Our research will further reveal the relationship between CAAP1 and the occurrence and development of breast cancer cells, and provide a new idea and direction for the cures of breast cancer.
Anti-Vibrio Response of CarcininPm 1 from Penaeus monodon and Its Heterologous Expression
Authors: Zhou Liang , Li Guoqiang , Li Anguo , Jiao Yang , Huang Jianhua , Wang Chaogang
Published: January 2019

Crustins are crucial antimicrobial peptides in shrimp and play very important roles in innate immunity. In this research, a Type I crustin from Penaeus monodon (CarcininPm1) contained 108 residues was studied. The first 16 residues are signal peptide. It contained ten cysteines but did not form an intact whey acidic protein (WAP) domain. CarcininPm1 was observed to widely distribute in all tissues, while highly expressed in intestine. The expression level of CarcininPm1 in hepatopancreas was up-regulated 12- 20 times during 4-12h post challenged by Vibrio parahaemolyticus. And the transcription in heart, stomach and gills was also significantly enhanced at 4h post challenge. The mature peptide was expressed successfully in Eschericha coli by fusing to a SUMO protein, with protein production around 8 mg/mL. After cleavage with SUMO protease, carcininPm1 was obtained indicating its potential applications.
Orthogonal Optimization of Polysaccharide Extraction from Millet Bran
Authors: Cai Songling , Pang Min
Published: January 2019

This paper investigated the effects of liquid-solid ratio, extraction time, extraction temperature and alkali concentration on the extraction rate of millet bran polysaccharides by the enzymatic hydrolysis and alkaline extraction method, then the L9 (34) orthogonal test was designed to optimize the extraction process according to the single factor experiment.The optimum parameters were obtained as follow: 15:1 liquid-solid ratio, five hours extraction time, 80° extraction temperature, and 0.7 mol/l concentration of sodium hydroxide. The extraction rate of millet bran polysaccharide reached 11.46% through the verification experiments under these conditions,and the RSD was 1.79%. Therefore, it can provide some experimental basis for the scientific research of millet bran polysaccharides in the future.
Optimization of Enzymatic-assisted Extraction of Polysaccharides from Roxburgh Rose Pomace and its Antioxidant Activity
Authors: Zhou Xiaoli , Zhu Guangxu , Yang Yansheng , Du Bin , Lin Dong
Published: January 2019

In this experiment, at first the roxburgh rose juice was extracted and then roxburgh rose residue was taken as raw material. We have used the enzyme assisted method to study the extraction process of polysaccharides from roxburgh rose pomace. The effects of mesh number, the concentration of the enzyme, temperature and time, pH and solid-liquid ratio on the polysaccharides yield were explored by single factor experiments. And then orthogonal experiment was designed to study the optimal techniques on extracting of polysaccharides from pomace. The in vitro antioxidant activity of the obtained polysaccharides was studied. The results showed that the optimal condition of extracting polysaccharides was as follows: enzyme concentration 2.5%, enzymatic hydrolysis at 60° for 40 min, pH 4.0, mesh number were 100 and solidliquid ratio was 1:25 based on the ratio of cellulase and pectinase was 2: 1. The average polysaccharides yield of enzymatic extraction method reached (4.79±0.07) % under the optimal condition. The antioxidant activity assays in vitro revealed that polysaccharides from roxburgh rose pomace can be used as natural antioxidants in functional foods and pharmaceutical industries.
Development of rose and crabapple compound beverage
Authors: Dan-min Fan , Zhi-long Yang
Published: January 2019

A nutrient-richness rose-crabapple compound beverage was developed using edible rose and crabapple as raw material, and the processing technology of compound beverage was also investigated. Fresh rose petals were mixed with sugar at the mass ratio of 1:1, maturing 3 months at room temperature. Then a unique-flavor rose liquor was extracted from the mature rose-sugar mixture, whereas the flavor crabapple extracts were extracted from 20 grams of crabapple in one liter purified water. The compound beverage processing parameters were identified to ensure the optimum rose beverage processing formula by sensory evaluation and orthogonal test.
Catalytic synthesis of β-sitosterol linolenate by Pickering emulsion-immobilized lipase
Authors: Liu Xinlong , Wang Lihui , Liu Peng , An Na , Chen Guanghui , Zhao Rui , Hang Zhongxia
Published: January 2019

In order to promote the application of phytosterol ester, a new kind of catalyst was developed on the basis of traditional enzymatic synthesis method. Pickering emulsion catalyst (CRL@PE) with two-phase structure was constructed using isoctane and Candida rugosa lipase and employing nanotube as emulsifier. Then the CRL@PE was used to catalyze the synthesis of β-sitosterol linolenic acid ester with β-sitosterol and α-linolenic acid as substrates. The effects of temperature, enzyme dosage, linolenic acid concentration and reaction time on the conversion rate of phytosterols were studied by single factor experiment and central composite design of response surface methodology. The optimal process parameters were obtained as follows: temperature of 29.45 oC, lipase dossage of 10.97 U, linolenic acid concentration of 42.35 mmol/L, reaction time of 350.7 min, and phytosterol conversion rate was 96.8±0.7% at these conditions. After reuse of CRL@PE for 10 times, the phytosterol conversion rate was 96.86%, showing that the catalyst had good stability.