bluuebunny/crossref_metadata_2025_split huggingface dataset:
The onset of parametric decay of lower hybrid waves during lower hybrid current drive experiments on Experimental Advanced Superconducting Tokamak
Authors: Li Gen , Zhou Taotao , Li Miaohui , Ding Bojiang , Gan Chunyun , Yan Ning , Xiang Nong 
Published: September 2024

Abstract
An ad hoc calculation is presented to interpret the growth of sideband waves during lower hybrid current drive (LHCD) experiments on Experimental Advanced Superconducting Tokamak (EAST). We adopt the solution of the non-linear dispersion relation for parametric instabilities to describe the growth rate of ion cyclotron quasi-modes (ICQMs) in the peripheral plasma, and use the WKB solution of the propagation of electrostatic waves in two dimensions to model the variation of the electric field in the scrape-off-layer (SOL). We then calculate the growth rates and amplification factors of the sideband waves associated with ICQM in the parallel and perpendicular coupling limits. The onset and substantial growth of the first down-shifted sideband of lower hybrid waves (LHWs) are associated with elevation of the plasma density in the outer SOL where the growth rate of ICQM in the parallel coupling limit increases sharply after the density is elevated. The peak frequencies associated with the first harmonic of ICQM obtained from calculating the amplification factors in the parallel coupling limit (

A

para

) agree very well with the observed frequencies of the first down-shifted sideband of 2.45 GHz LHWs in EAST pulse 43 772 and 86 521. The consistency between the calculation and the observation indicates that the sideband waves are associated with parametric decay instability of ICQM excited in the outer SOL through parallel coupling. The amplitude of

A

para

obtained from a single pass of LHWs through the SOL of EAST is, however, one order of magnitude smaller than unity, meaning that it remains elusive whether the substantial growth of sideband waves mainly occurs in front of the antenna or requires multiple passes of LHWs across the SOL region.
Effects of Mutual Coupling for Bistatic Airborne Radar with End-fire Array in Clutter Environment
Authors: Jiang Longwei , Chen Yufeng , Lin Yi , Yue Yaxing , Liao Guisheng 
Published: September 2024

Abstract
The end-fire array is widely used in airborne radar systems for its specific physical configuration. However, mutual coupling is usually inevitable in the close-spaced end-fire array, which brings a great challenge for target detection in a clutter environment. In this paper, we investigate the effect of mutual coupling for the bistatic airborne radar with the end-fire array. Firstly, the signal model of the bistatic airborne radar with the end-fire array is presented. Then, the beam pattern and clutter model with mutual coupling are constructed. Furthermore, we analyze the clutter spectra with mutual coupling for different terrain types of the glistening zone. Finally, the simulation results validate the negative impact of the mutual coupling on target detection in clutter environment.
Design of Nested Linear/Lattice Code using Field-size Reduction
Authors: Qiu Xinzhe , Yang Tao 
Published: September 2024

Abstract
It has been demonstrated that lattice-code based communication strategies are beneficial to multi-user multi-hop networks. This paper considers a practical nested linear/lattice code design that achieves near-capacity performance. We propose a new field-size reduction method to realize code nesting for users with different rates. Then, a multi-code extrinsic information transfer (EXIT) chart is executed to design optimized degree distributions. Simulation results demonstrate enhanced BER performance compared to the existing method, and the nested code is less than 0.8 dB to capacity limits. The performance improvement in multi-user systems is demonstrated with linear physical-layer network coding multiple access (LPNC-MA) framework.
Research and Implementation of Aurora Protocol NFC System
Authors: Wang Lei , Liang Guan Yan , Jun Li Yan , Dong Xu Guo , Ping Li Jin 
Published: September 2024

Abstract
Aurora protocol is a high-speed serial communication protocol with characteristics such as high speed, low latency, open source and free. It is widely used in application fields that require a large amount of data transmission. However, Aurora communication systems also has the problem of data loss, making flow control a challenge; This paper analyzes the problem of data loss, finds out the root cause, and designs an NFC(Native Flow Control) system for the Aurora protocol. The system uses AXI4-Stream bus for communication and solves the problem by controlling the Aurora module to send NFC PAUSE code at the sending end. At the same time, by setting a reasonable upper limit value in the flow control program, the problem of data loss caused by NFC Latency is solved, and effective flow control is achieved.
Traffic Speed Prediction Based on Dynamic Spatial-Temporal Attention Graph Convolutional Network
Authors: Wang Chenxu , Ren Qianqian 
Published: September 2024

Abstract
The prediction of traffic speed represents a crucial branch within the broader field of traffic forecasting. Its objective is to forecast the average speed or speed distribution on road segments or within a network for a designated future time period . The prediction results can provide scientific decision support for traffic management departments to effectively control and guide traffic flow. However, given the limitations of urban road network topology and its dynamic temporal shifts, traffic prediction has consistently been deemed a perpetual scientific challenge. To simultaneously encapsulate both spatial and temporal dependencies, we introduce an innovative Dynamic Spatio-Temporal Attention Network (DSTANet). This model integrates spatio-temporal attention with graph convolutional networks and temporal convolution to enhance its analytical capabilities. Specifically, the graph convolutional network is leveraged to learn the intricate topology for capturing spatial relations, while temporal convolution is employed to ascertain the dynamic fluctuations of traffic data, thereby acquiring temporal dependencies. Subsequently, we implement our model to forecast traffic patterns within the framework of road networks. Experimental results demonstrate that our model effectively captures the spatio-temporal dependencies among roadway junctions derived from traffic data, outperforming state-of-the-art benchmarks on real-world traffic datasets in terms of predictive accuracy.
Application of Rotor UAV LiDAR in Marine Beach Mapping
Authors: Li Tong , Wang Fengjiao , Ding Shijun 
Published: September 2024

Abstract
This paper based on the Jiangsu Provincial Offshore Underwater Geographic Information Data Acquisition Pilot (North) project, uses the Dajiang M600 Pro six rotor UAV equipped with the Haida Digital Cloud ARS-200 airborne LiDAR equipment to acquire topographic data of the marine mudflats, and then Terrasolid software is used to process the data to obtain the point cloud results and DEM results of the marine mudflats, and finally, GPS-RTK is used to collect the check points of the surveyed area to check the accuracy of the results. The results show that the precision of point cloud results is better than ± 10cm, which verifies the feasibility of rotary-wing UAV LiDAR technology applied to marine beach mapping, and provides a new technical scheme for marine beach mapping.
Design of an infrared/visible endoscope system for HL-3 divertor observation
Authors: He Z. , Liu L. , Gao J. , Hao G. , Ma H. 
Published: September 2024

Abstract
This paper presents the design and test results of an
infrared/visible endoscope system for diagnosing divertor in HL-3
tokamak. The system is designed to view the plasmas tangentially
with multi-imaging systems including two infrared imaging systems
and three visible imaging systems. Several filters based visible
imaging measurements are thus available simultaneously for divertor
physics investigation. The performance of the optical design is
explored, and the manufacture of the system and the test results are
presented. The characteristics of the advanced divertor
configurations, such as multi-strike points and two X-points, are
observed clearly with the endoscope system.
ISM band CPW-fed antenna for detection of skin cancer
Authors: Jagadish Chandra Prasad Devu , Venkata Ravi Kiran Kalepalli , Syamala Neeli , Kiran Kumar Bandi , Jagadeesh Babu Kamili , Shyam Prasad D. 
Published: September 2024

Abstract
A CPW-fed antenna sensor with high quality factor is
designed to identify the skin cancer. The proposed antenna operates
in the ISM band at 2.47 GHz frequency. The proposed antenna aims to
exploit the variations in dielectric constants of skin, fat, and
muscle tissues to enable non-invasive and early detection of skin
cancer. The antenna design process involves considerations for
achieving a high frequency shift and quality factor to discern
subtle variations in dielectric properties. Electromagnetic
simulations, utilizing advanced numerical techniques are employed to
analyze the antenna's performance in different tissue
environments. The proposed antenna design is optimized for enhancing
its sensitivity to changes in the dielectric constants associated
with healthy and cancerous skin tissues. To validate the antenna's
effectiveness, experimental setups using tissue-mimicking phantoms
are utilized. This research not only emphasizes the technical
aspects of antenna design but also underscores the potential
clinical applications for non-invasive skin cancer detection.
Combined effect of total ionizing dose and electromagnetic pulse on MOSFET devices
Authors: Wu W.B. , Zhou H.J. , Zhang H.T. , Liu Y. , Liu Q. , Xu F.K. , Zhao Z.G. 
Published: September 2024

Abstract
Theoretical and experimental research on the combined effect
of total ionizing dose (TID) and electromagnetic pulses (EMP) is
helpful to develop hardening techniques for semiconductor devices.
In this work, a numeric model for the comprehension of the combined
effect of TID and EMP on MOSFET devices is developed with the
semiconductor device simulation software TCAD. Simulation results
show that the NMOS and PMOS devices will exhibit more severe leakage
current increase and sub-threshold characteristics degradation in
the combined environment. In addition, the potential influence of
doping concentration and gate length on the performance of the
MOSFET in the combined environment is discussed.
An off-energy multipole kicker injection scheme designed with an acceptance analysis method for a diffraction-limited storage ring
Authors: Wang Peining , Yang Penghui , Liu Gangwen , Bai Zhenghe , Wang Lin , Li Weimin 
Published: September 2024

Abstract
Diffraction-limited storage rings (DLSRs) have restricted
dynamic apertures (DAs) due to their ultralow emittances and very
strong nonlinearity. Off-energy multipole kicker injection (MKI)
scheme, in which off-energy beam is injected onto the corresponding
off-energy orbit, can reduce the requirement of DAs. However, it
requires relatively large energy acceptance and high dispersion
bumps. For a DLSR lattice with relatively large energy acceptance
and off-momentum DAs, off-energy beam can be injected into the
off-momentum DA but with an additional offset from the off-energy
closed orbit to increase the total offset of the injected beam from
the on-energy closed orbit, which is favorable to the application of
the off-energy MKI. In this paper, such an off-energy MKI is
designed for a DLSR, and an acceptance analysis method based on 6D
particle tracking is utilized to design and optimize this injection
scheme. Detailed simulation is carried out, and the results
demonstrate the feasibility of this injection scheme.
Global assessment of interannual variability in coastal urban areas and ecosystems
Authors: Odériz I , Losada I J , Silva R , Mori N 
Published: September 2024

Abstract
Both seasonal and extreme climate conditions are influenced by long-term natural internal variability. However, in general, long-term hazard variation has not been incorporated into coastal risk assessments. There are coastal regions of high interest, such as urban areas, where a large number of people are exposed to hydrometeorological hazards, and ecosystems, which provide protection, where long-term natural variability should be considered a design factor. In this study, we systematized climate analysis to identify high-interest regions where hazard long-term variability should be considered in risk assessment, disaster reduction, and future climate change adaptation and protection designs. To achieve this goal, we examined the effect of the leading modes of climate variability (Arctic Oscillation, Southern Annular Mode, and El Niño–Southern Oscillation) on the variation in the recurrence of extreme coastal hazard events, including as a first step sea surface temperature, winds, and waves. Neglecting long-term variability could potentially lead to the underperformance of solutions, or even irreversible damage that compromises the conditions of ecosystems for which nature-based solutions are designed.
Social inequalities shape climate change adaptation among Indian farmers
Authors: Vallury Sechindra , Cook Nathan J , Nelson Donald R 
Published: September 2024

Abstract
Agricultural technologies are vital for farmers adapting to climate change. However, while efforts have focused on improving access and initial adoption, little attention has been given to social disparities in rates of adoption and the benefits derived from these technologies. Our study investigates the adoption of groundwater irrigation technology in India, a transformative innovation that has historically enhanced productivity and food security, and helped agricultural households adapt to a changing climate. We use a nationwide household survey sample that spans nearly a decade, capturing a key period of groundwater expansion in India. Our analysis reveals that members of highly marginalized social groups are less likely to adopt groundwater irrigation technologies, and less likely to sustain their use of the technologies for long periods of time. Furthermore, the household-level benefits of the technologies–operationalized through the relationship between technology adoption and income–appear lower for households belonging to historically marginalized groups compared to the historically advantaged. Our study underscores the importance of addressing social inequalities in both adoption as well as the sustained utilization of agricultural technologies and other climate adaptation tools. Disparities in the utilization of these technologies can hinder farmers’ ability to access new innovations and adapt to increasing threats from climate change. Targeted policies and interventions are essential to not only provide historically marginalized groups access to technological innovations, but also facilitate their effective utilization.
Sedimentation analysis in the shipping lanes of Tanjung Rhu Port, Belitung
Authors: Sujantoko  , Mustain M , Ekianto B P P 
Published: September 2024

Abstract

Ports are a vital infrastructure needed to optimize the transportation and utilization of marine resources. As an essential means, shipping lanes must be in good condition so that the sea transportation process runs smoothly. This paper analyzes the sedimentation conditions in the shipping lane at the Tanjung Rhu port in Belitung. The investigation used a numerical model with Delft3D to predict shipping channel sedimentation over 10 years. Based on the simulation results, sedimentation occurred at the mouth of the shipping channel because the current speed was low in that area. This fact is due to conditions in the field, namely that it is difficult for ships to enter this route. Negligence can cause a ship to run aground, especially when seawater conditions are low.
Numerical model of changes in current patterns due to reclamation around the Mireng River estuary, Gresik
Authors: Sujantoko  , Mustain M , Narendra G M A 
Published: September 2024

Abstract
The Mireng River is in Gresik Regency and empties into the Madura Strait. Around the mouth of the Mireng River, two industrial areas require construction facilities through reclamation. The consequences of reclamation will cause phenomena due to the interaction of marine and environmental dynamics, which can change current patterns, wave heights, and sedimentation processes, affecting the surrounding environment. This study explicitly discusses the changes in flow patterns that occur due to reclamation. The investigation was performed using numerical model simulations with Delft 3D software. The model results show the movement pattern and current speed during the highest and lowest low tides. There was a change in the average flow speed to 0.18 m/s around the reclamation area due to flow obstruction due to reclamation. This condition has the potential for sedimentation to occur in the area. Therefore, mitigation efforts are needed to reduce this impact.
Gonad development of female tilapia (Oreochromis niloticus) exposed to acid red 88 textile dye
Authors: Triastuti R J , Amelia K 
Published: September 2024

Abstract
Textile dyes are artificial dyes that are widely used by the textile industry because they have many types of colors and are cheap. The azo dye used can be an aromatic compound that has stable properties, so if it is in water, it can be more toxic than the azo dye itself. This study aims to determine the effect of exposure to acid red 88 dye and a minimum dose of acid red 88 dye on the level of gonad maturity and gonadosomal index (GSI) of parent tilapia fish. This research was an experimental study; tilapia fish were kept for 7 days with 5 treatments and 4 repetitions. Data collection was carried out by looking at the TKG of tilapia fish in morphology and histology, and then the GSI of tilapia fish was analyzed using the ANOVA test. The results of this research show that acid red 88 is said to be an endocrine-disrupting chemical and produces excess reproductive hormones, which can affect fish health. Then there was damage to the histology of the TKG of the tilapia. The conclusion of this research is that exposure and dose of acid red 88 dye have an influence on the morphology and histology of TKG and the GSI value of tilapia.
The effect of storage temperature on the quality of natural flavor paste products from white shrimp (Penaeus indicus) by-product
Authors: Shabrina F , Pujiastuti D Y , Saputra E 
Published: September 2024

Abstract
Diversification of by-products from the shrimp industry into paste-shaped flavorings is expected to increase the economic value of the waste. Pasta is a semi dry product that is suitable for use as a flavoring product. The purpose of this study was to determine the sensory, microbiological, and proximate content as well as the influence of the difference in storage temperature of natural flavor paste products from the by-products of white shrimp processing. This study used the Complete Randomized Design trial design method with three treatments and three repeats. The treatment provided is storage at chilling temperature (5-10°C), room temperature (20-25°C), and incubation temperature (30-35°C). The main parameters in this study consist of testing TPC (Total Plate Count) and hedonic values (including appearance, aroma, texture, and taste), while the supporting parameters are proximate testing (protein, fat, and water). The data analysis used was a 2-factor fingerprint test (ANOVA) and to find out the best treatment was done with Tukey’s follow-up test. Based on the results of the study showed that different storage temperature treatments gave a noticeable difference (p < 0.05) in TPC, hedonic and proximate values. Chilling storage temperature treatment of 5-10°C (P1) is the best temperature treatment in maintaining the quality of flavor paste products.
New records of the Non-native Amazon sailfin catfish Pterygoplichthys pardalis (Castelnau, 1985) in Bangka Island Indonesia
Authors: Ramadhanu D , Tamam M B , Valen F S , Hasan V 
Published: September 2024

Abstract
The freshwater species known as Pterygoplichthys pardalis (Castelnau, 1985), commonly referred to as the Sailfin catfish, is native to temperate and tropical regions of South America, with a particular prevalence in the Amazon. Due to insufficient regulation of the pet fish industry, certain species from this family have been inadvertently or deliberately introduced to various places worldwide. In Indonesia, the occurrence of the sailfin catfish has been recorded in the natural freshwater habitats of Java and Sumatra. The introduction of non-indigenous fish species into natural aquatic environments has had adverse effects on biodiversity due to factors such as competition for resources, modification of habitats, and transfer of diseases so the presence of the P. pardalis is a danger alert. This study presents the first evidence of the presence of the sailfin catfish P. pardalis on Bangka Island, located in the western region of Indonesia. During the field trip conducted in August 2023, a total of twenty specimens were obtained from the Rangkui River, Pangkal Pinang.
Molecular identification of Nemacheilus sp. from Bangka Island, Indonesia Based on the Cytochrome C oxidase Subunit I (COI) Gene
Authors: Valen F S , Hafidz A M , Islamy R A , Faqih A R , Widodo M S , Hasan V 
Published: September 2024

Abstract

Nemacheilus is a genus of stone loaches native to Asia. There are 13 species of the genus Nemacheilus that can be found in western Indonesia, from 44 species that exist in Asia. During our expedition to Bangka Island, which took place between the 20th and the 25th of January 2023, we discovered 15 live specimens of Nemacheilus sp. These specimens were collected using a fish trap in the Bencah River, Bangka Island, Indonesia. We identified Nemacheilus sp based molecular analysis by using the DNA Barcoding method based on the Cytochrome C oxidase Subunit I (COI) gene. DNA barcoding is a solution to provide accurate, fast, and automatable identification of species and species discovery. Based aon the COI gene, Nemacheilus sp. Nemacheilus from Bangka Island is genetically closest to Nemacheilus pfeifferae, which is found in Sumatra. Sumatra and Bangka Island have a history of river connection before the maximum glacial phase II. However, based on the similarity of DNA base pairs, these two species are only 90% similar. This indicates that the genetic difference between these two species is 10%, which is far below the threshold for what is considered to be an identical species, which is under 3%. Therefore, we hypothesize that the Nemacheilus that was found on the island of Bangka is not the species known as Nemacheilus pfeifferae, but rather another species. Since the data for this other species are not yet available in Genbank, we are referring to it as Nemacheilus sp. Bangka for the time being.