Digital Commons Network^™

Pso-Elm Prediction Model For Surface Deformation Of Mine Slope, Ning Yongxiang, Cui Ximin

Coal Geology & Exploration

During the excavation of the roadway, using reflected in-seam waves detection technique to explore the structure of roadway and accurately interpret the wave impedance interface is of signality for mine production. The method of detecting the position of faults by reflected in-seam waves is usually inaccurate, which is mainly caused by the selected deviation of reflected in-seam waves velocity. In order to reduce the selected deviation of reflected in-seam waves velocity, this paper analyzed the features of reflected in-seam waves velocity of fifteen coal seam in thirteen coal mines and the velocity relationships of reflected in-seam waves, direct in-seam waves …

The Covid Cases: A Preliminary Assessment Of Judicial Review Of Public Health Powers During A Partisan And Polarized Pandemic, Wendy E. Parmet

San Diego Law Review

In response to the very real possibility that there will be insufficient resources to properly respond to the COVID-19 pandemic, states have been developing crisis standard of care plans, which may authorize the prioritization of patients for scarce resources based on changing circumstances and increased demands. Due to the dearth of necessary resources and trained professionals during a public health emergency, the standard of care that clinicians may be able to provide during the COVID-19 pandemic may, by necessity, depart significantly from standard nonemergency medical practice. Adhering to crisis standards of care may expose health care providers and entities to …

Application Of Seismic Waveform Classification Technology In Interpretation Of Geological Abnormal Body, Cheng Yan, Zhao Pu, Lin Jiandong, Zhang Xingping

Coal Geology & Exploration

Nalinhe No.2 coal mine is the first pair of large-scale mines in the Nalinhe mining area. The water inrush events occur from time to time due to its own complex hydrogeological conditions and strong disturbance of excavation in the initial stage of production, which has caused serious threat to the mining activity safety. Finding the source of gushing water quickly and effectively is the key to control the mine water disaster. Based on the water quality analysis of main aquifers and goaf water samples in Nalinhe No.2 coal mine, and drawing the piper trilinear nomograph water samples, the hydrogeochemical characteristics …

Dynamic Modelling And Experimental Results Of A Ray-Type Hybrid Underwater Glider With A Dualbuoyancy Engine, Ngoc-Duc Nguyen, Hyeung-Sik Choi, Sung-Wook Lee, Wen-Hsiang Hsieh, Sang-Ki Jeong, Dae-Hyeong Ji

Journal of Marine Science and Technology–Taiwan

For ocean observation and exploration, underwater gliders (UG) have shown their efficient long-range operation with buoyancy propulsion. The current Torpedo-shape UGs have small buoyancy capacity and insufficient space for batteries and sensors. In this paper, a Ray-type hybrid underwater glider (RHUG) is developed with new hull design, dual-buoyancy engine, and thrusters. The control system of the RHUG is constructed for gliding motion. To understand the characteristic of the RHUG, dynamic modelling of the dual-buoyancy engine was established. To verify the proposed dynamics model, a navigation experiment using the developed RHUG platform was carried out. Through comparison between experiment and simulation …

The Long Shadow Of Jacobson V. Massachusetts: Public Health, Fundamental Rights, And The Courts, Daniel Farber

San Diego Law Review

The COVID-19 pandemic struck the United States in early 2020. The coronavirus prompted public health mandates without precedent for at least a century. Some states almost entirely locked down. These measures inevitably impinged on activities that the Constitution would normally protect. In confronting these cases, many courts have turned to a 1905 Supreme Court case decision, Jacobson v. Massachusetts, often considered the leading case in public health law. There is little agreement, however, about how that decision fits into the current framework of constitutional law. As a result, courts have differed widely in the degree of deference they give …

We Are All Gig Workers Now: Online Platforms, Freelancers & The Battles Over Employment Status & Rights During The Covid-19 Pandemic, Orly Lobel

San Diego Law Review

Since the early days of the Coronavirus pandemic, unemployment rates leapt to the highest they have been since 1975. Congress passed the Coronavirus Aid, Relief, and Economic Security (CARES) Act in March 2020, a $2 trillion relief package, offering augmented unemployment relief not only to employees but also to the self-employed, including gig workers. The Families First Coronavirus Response Act (FFCRA) was passed to provide sick leave in the form of tax credits that also extended to the self-employed. Beyond the governmental responses, platform companies offered new limited relief to their workers in the form of sick leave, even as …

Covid-19 And Preventing Harm To Vulnerable Children, Jessica K. Heldman, Margaret A. Dalton, Robert C. Fellmeth

San Diego Law Review

Although COVID-19 mercifully seems to affect children less severely than adults, children are far from immune from the impacts of the virus. Public health orders closing schools and businesses, cancelling events, and keeping children at home have been disruptive and distressing to many children and families. But for children who rely on government entities for protection, care, custody, and services, the effects of the public health orders can be devastating. COVID-19 and the response to it has serious implications for the safety, well-being, and development of these vulnerable children—those within the child welfare, juvenile justice, and special education systems. All …

Crisis Standards Of Care And State Liability Shields, Valerie Gutmann Koch

San Diego Law Review

The COVID-19 pandemic has overwhelmed many U.S. systems—including the already-strained medical system—intended to protect and care for its citizens. In the United States, New York became the first epicenter of the pandemic, accounting for approximately five percent of global COVID-19 cases by March 2020. Hospitals, health care providers, and policymakers soon recognized that, in New York and beyond, they faced a bleak reality that—if the spread of the virus could not be controlled—there would soon not be enough ventilators for all patients who needed them, despite hospitals practicing “surge capacity” to reduce the need for ventilators by canceling or postponing …

Speaking Truth To Power And Power Speaking Truth: Accurate And Reliable Information In A Pandemic, Leslie E. Gerwin

San Diego Law Review

In this Article, I offer some preliminary ideas for how we might engage in a collective project to enable our government to improve its capacity to help us understand and respond to a future existential health threat. I first deconstruct the government informing process to analyze the points of information contestation based upon the realities we are experiencing. I then outline a project to create a space in which respected experts mediate knowledge claims and moderate contested opinions regarding the human risk of, and government response to, a public health threat. This idea embraces the ambitious goal of educating and …

Prisons And Pandemics, Camila Strassle, Benjamin E. Berkman

San Diego Law Review

This Article focuses on how to balance public health, public safety, and incarcerated people’s legal rights when implementing a program for early release from confinement. Ethical, epidemiological, and legal arguments all point to a need for an immediate reduction in the incarcerated population. However, this leaves open several points of reasonable disagreement about how to manage early release. These include how to set priorities for processing and releasing individuals across the country. For example, officials could prioritize screening individuals who are housed in facilities that have been hit hard by infection; or by screening individuals who have a safe place …

V.57-4, 2020 Masthead

San Diego Law Review

No abstract provided.

Penggunaan Neurodevelopmental Treatment Pada Kasus Dandy Walker Syndrome, Aditya Denny

Jurnal Sosial Humaniora Terapan

Dandy Walker Syndrome (DWS) is a syndrome that occurs in a child due to a malformation that occurs during the development of the cerebellum and the fourth ventricle. One of the clinical manifestations of DWS is a balance disorder. The purpose of this case study was to determine the effectiveness of Neurodevelopmental Treatment (NDT) on standing balance in DWS cases with the Pediatric Balance Scale (PBS) parameter. The clinical question arises, how is the effectiveness of NDT to improve balance with the parameters of the pediatric balance scale in cases of dandy walker syndrome? To answer clinical problems, online literature …

Diffusing New Media As Know-How Digital Communication In Troubleshoot Maintenance Of Pico Hydro Technology In Bengkulu, Indonesia

Jurnal Sosial Humaniora Terapan

Communication has an important role for spreading messages and ideas through various mediums. This research explains the important role of new media in community engagement activities and the dissemination of new information, innovations and technologies that have been done in 2017, especially for the graphic design via the internet on Pico Hydros information technology in Batu Roto village, Bengkulu province, Indonesia. Community involvement itself is based on a special multidisciplinary perspective of communication and engineering. Pico Hydro is commonly used worldwide to generate electricity in rural areas, making it very useful for rural electrification. We conduct research to meet the …

Kepatuhan Petugas Terhadap Spo Penyediaan Berkas Rekam Medis Di Ugd Rs X

Jurnal Sosial Humaniora Terapan

Ketepatan dan kecepatan penyediaan berkas rekam medis di unit gawat darurat sebuah rumah sakit menjadi point perhatian khusus karena menentukan citra awal pelayanan. Penelitian ini bertujuan untuk memotret gambaran kepatuhan petugas filing unit rekam medis RS X menggunakan desain penelitian mix kuantitatif dan kualitatif. Teknik pengambilan sampel dilakukan secara purposive sampling terhadap petugas yang bertanggungjawab atas ketersediaan berkas rekam medis yaitu koordinator penyediaan dan pengiriman berkas rekam medis serta petugas operasional atau petugas filing yang berjumlah 10 orang pada Maret 2020. Hasil penelitian menunjukkan bahwa pelaksanaan distribusi rekam medis di RS X belum sesuai dengan SPO. Hal itu terjadi karena …

Literasi Akuntansi Dan Keuangan Untuk Meningkatkan Kapasitas Dan Kualitas Sumber Daya Manusia Pada Koperasi Simpan Pinjam, Titis Wahyuni

Jurnal Sosial Humaniora Terapan

Sharia savings and loan cooperatives provide benefits for Muslims who need fast funds to invest and develop business without being subject to usury. Improvement of accounting and financial skills is needed for cooperative managers to avoid financial failures that can lead to the closure of cooperatives. This can be achieved by providing a series of accounting and finance training to cooperative managers. The health condition of the savings and loan cooperatives has to be healthy so that they can continue to provide services to people in need. However, many savings and loan cooperatives find it difficult to carry out health …

Pengaruh Asosiasi Merek Terhadap Keputusan Pembelian Konsumen Iphone (Studi Kasus Mahasiswa/I Program Pendidikan Vokasi Ui), Arius Krypton

Jurnal Sosial Humaniora Terapan

No abstract provided.

Strategi Kampanye Sosial Anti Stigma Dan Perilaku Hidup Sehat Terhadap Penderita Kusta Dan Orang Yang Pernah Mengalami Kusta (Oypmk)

Jurnal Sosial Humaniora Terapan

This study describes a social campaign conducted by university academics. The social campaign that is being carried out is an anti-stigma campaign to counteract the negative stigma for people affected by leprosy (OYPMK) and a campaign for healthy living habits, especially for oral and dental health. The research was conducted descriptively to see what social campaign strategies were implemented in an effort to eliminate negative stigma and encourage healthy living behaviors. The data displayed is descriptive quantitative and qualitative from the observations and interviews result. The findings show that there are key messages that are used in the campaign to …

Vokhum Fest: A Specialized Integrated Marketing Communication Event Towards Small Medium Enterprises Brand Management And Youth Social Welfare

Jurnal Sosial Humaniora Terapan

Integrated Marketing Communication is an essential concept in marketing field. It is used worldwide to marketing and communicating in vary kind of business both in big enterprise or small enterprise. This article describes the implementation of IMC on an event marketing called Vokhum Fest as a community engagement program. The event is a collaboration between Vocational Education Program Universitas Indonesia lecturers, assistant lecturers, students and 12 Small Medium Enterprises (SMEs) in Jakarta Greater Area ranging from products to services also for the most part organized by youth. The purpose and benefits of this research are to see the impact of …

Perbandingan Empat Jalur Distribusi Pada Pemasukan Premi Asuransi

Jurnal Sosial Humaniora Terapan

This study aims to discuss the distribution of insurance sales. In addition, researchers will also calculate the contribution of each distribution channel to premium income in PT X. The data used are secondary data from 2017-2019. The data obtained is analyzed statistically as descriptive to provide information on the contribution to each lane. The best achievement is measured from the target presentation with the realization of sales results. PT X has 4 sales distribution channels, namely Agency, Bancassurance, Direct Marketing TeleMarketing (DMTM), and Corporate Solution. The results of the study explained that the highest achievement was DMTM and the lowest …

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.

Reception Test And Analysis Of Different Geophones In Coal Mining Districts Seismic Exploration, Zhang Libing, Dong Shouhua

Coal Geology & Exploration

During the development process of coalbed methane, the aggregation and sedimentation of coal fines can block the migration channel of coalbed methane and lead to accidents such as stuck pump and buried pump. In order to find out the aggregation and sedimentation characteristics of coal fines with different particle sizes, the aggregation and sedimentation experiments of coal fines with the particle size>140 mesh(<106 μm), 70 to 140 mesh(106-212 μm) and 50 to 70 mesh(212-300 μm) in deionized water were carried out. The aggregation and sedimentation characteristics of coal fines with different particle sizes in deionized water suspension were investigated from the suspension observation, the concentration characteristics of coal fines and the particle size distribution of coal fines in suspension. The results show that with the increase of the time, the color of coal fines suspension becomes lighter to different degrees, and the stratification of coal fines suspension gradually appears, and the suspension of coal fines with the particle size more than 140 mesh was the first to stratify among three suspensions. The smaller the particle sizes of coal fines, the more coal fines float on the top of the suspension, and the larger the particle sizes of coal fines, the more coal fines sink to the bottom of the suspension. The concentration of coal fines in the suspensions decreased to different degrees with the increase of the time. The concentration of coal fines decreased the fastest within 3 minutes after stopping the stirring. The concentration of coal fines with the particle sizes of 70 to 140 mesh in suspension was the largest among three suspensions. According to the particle size distribution curves, the process of aggregation and sedimentation of coal fines was divided into three stages: single peak to double peak(rapid floating and settlement of coal fines), double peak to single peak(rapid accumulation and settlement of coal fines) and single peak(slow sedimentation of coal fines). Coal fines with particle size more than 140 mesh in the suspension was the first to reach the stage of slow sedimentation, and coal fines with particle size of 70-140 mesh in the suspension reached the stage of slow sedimentation at the latest among three suspensions. The mechanism of aggregation and sedimentation of coal fines was discussed from the aspects of the force of coal fines, the extended DLVO theory, and the organic molecular structure of coal fines. The coal samples contain a large number of hydrophobic groups, such as aliphatic hydrocarbon and aromatic hydrocarbon, therefore, they have strong hydrophobicity and low wettability. With the decrease of particle sizes of coal fines, its specific surface area increases significantly, and a large amount of air is absorbed on the surface of coal fines, forming an air film. At the same time, particles of coal fines are adsorbed and aggregated with each other, and many micro pores are formed inside, resulting in that coal fines with small particle size is easy to aggregate and float on the suspension surface.

Application Of Broadband And Wide Azimuth Processing Technology In Full Digital High Density Seismic Exploration In Huaibei Mining Area, Yang Guangming, Jin Xueliang, Zhang Xianxu, Zhi Min, Shan Rui

Coal Geology & Exploration

During coalbed methane well drilling, the drilling fluid contaminates and blocks the pores and fractures of coal seam. In order to find out the difference of pollution degree of drilling fluid coal and the contribution rate of the pores and fractures of different scale to permeability, the coal of Changping mine was taken as the research object, the scanning electron microscopy(SEM) and the Image Pro Plus(IPP) processing technology were used, the parameters such as the average length, the average width, the total area and the total perimeter of the fractures of different scales in coal before and after contamination were …

Characteristics And Monitoring Method Of The Trajectory Of The Radial Cbm Well, Xin Kai, Ji Changjiang, Xiao Chun

Coal Geology & Exploration

The in-situ stress of 3-1 coal seam in Hongqingliang coal mine was measured by hollow core inclusion measurement, and distribution characteristics of in-situ stress field were obtained in order to solve the problem of serious deformation in mining roadway. Fault structures of grade Ⅰ-Ⅴ in Hongqingliang coal mine were divided by geo-dynamic division method, and the stress areas were divided and the stability of roadways was analysis by rock stress state analysis system. The research showed that the in-situ stress field in Hongqingliang coal mine belongs to the horizontal tectonic stress field, which is dominated by horizontal compressive stress. The …

Late Pleistocene Sedimentary Features And The Palaeoclimatic Background In Hongsibao Basin, Li Zhenhong, Cui Jiawei, Li Chaozhu, Jiang Boyu, Huang Ting

Coal Geology & Exploration

The chuck is an important part of the coal mine tunnel drilling rig. The performance of the chuck directly affects the efficiency and quality of drilling. Aiming at the problems of the rubber cylinder hydraulic chuck. a new radial piston hydraulic chuck is studied. The objective of this paper is to devise a new radial piston hydraulic chuck instead of rubber-sleeve hydraulic chuck. Then, the motion mathematical model of radial piston hydraulic chuck was established based on the radial piston chuck clamping and loosening of system structure and working principle. At the same time, a dynamic co-simulation of chuck hydraulic …

Development Of Collision Avoidance Algorithm Based On Consciousness Of Ship Operator, Eunkyu Lee, Young-Soo Park, Minjeong Park, Myoung-Ki Lee, Eunbi Park, In-Young Gong

Journal of Marine Science and Technology–Taiwan

Several collision avoidance algorithms employing various methods have been developed to date. In this paper, a collision avoidance algorithm is proposed based on the potential assessment of risk (PARK) model, which is a maritime traffic risk assessment model based on the characteristics of the Korean coastal regions and the consciousness of a ship’s operator. The proposed collision avoidance algorithm is intended to be used in the transition period during which autonomous and human-operated ships sail simultaneously. The algorithm avoids collisions using the PARK model that reflects the International Regulations for Preventing Collisions at Sea. Situations such as head-on, crossing, overtaking, …

Intravenous Infusion Of The Β(3)-Adrenergic Receptor Antagonist Apd418 Improves Left Ventricular Systolic Function In Dogs With Systolic Heart Failure: Β(3)-Adrenergic Receptor Antagonist In Heart Failure, Hani N. Sabbah, Kefei Zhang, Ramesh C. Gupta, Jiang Xu, Vinita Singh-Gupta, Michael Ma, Kathe Stauber, Nathalie Nguyen, John Adams

Cardiology Articles

BACKGROUND: Unlike β(1)- and β(2)-adrenergic receptors (ARs), β(3)-AR stimulation inhibits cardiac contractility and relaxation. In the failing left ventricular (LV) myocardium, β(3)-ARs are upregulated, and can be maladaptive in the setting of decompensation by contributing to LV dysfunction. This study examined the effects of intravenous (i.v.) infusions of the β(3)-AR antagonist APD418 on cardiovascular function and safety in dogs with systolic heart failure (HF).

METHODS AND RESULTS: Three separate studies were performed in 21 dogs with coronary microembolization-induced HF (LV ejection fraction [LVEF] of approximately 35%). Studies 1 and 2 (n = 7 dogs each) were APD418 dose escalation studies …

Vision-Based Size Estimation And Centroid Positioning Of Partially Occluded Fruits, Kyu Mya Thin Kyu, Aung Nay Zar

ASEAN Journal on Science and Technology for Development

The objective of this study was to propose a simple and efficient image processing algorithm for estimating the size and centroid of partially occluded round fruits. In the proposed method, the size and centroid of partially occluded fruit were estimated based on the mathematical properties of the arc-radius. The experimental tests were conducted in a laboratory with orange, Sunkist, apple, and tomato fruits by setting different occlusion conditions. The occlusion percentage was varied between 0% and 90%. The accuracy and processing time of the proposed method were compared with that of the widely-used conic-section circle fitting method. The results showed …

Exploration Of Local Microorganisms From Rumen And Their Potential To Make Silage From Agricultural Waste, Purnamasari Listya, Purnomo Hari, Setyawan Hidayat Bambang

ASEAN Journal on Science and Technology for Development

Agricultural wastes are very diverse in type and have low nutrient values, especially in lignin and cellulose, which are difficult to digest. One way of overcoming this problem is by biological treatment using microorganisms, also known as silage. The availability of bio-activators that are both cost-efficient and easy to make further suggests that using local microorganisms may be an effective possible solution. This study focused on processing food crop waste (corn leaves) into silage using local microorganisms as the bio-activators. Research took place in the Agrotechnology Laboratory, University of Jember. The experimental design was completely randomized with four treatments: Treatment …

Identifying High-Collision Potential Vessel-Bridge Pairs In Vessel Traffic Service, Jeong-Bin Yim, Chun-Ki Lee

Journal of Marine Science and Technology–Taiwan

Collision risk assessment for maritime traffic monitoring in vessel traffic service (VTS) is a key technology for ensuring the safety of both vessels and bridges. This study proposes a risk assessment methodology using a single measure of collision risk ratio that could assist in reducing the cognitive load of VTS operators. To explain the proposed method, we first define the semantic and mathematical relationship of vessel– bridge pier collisions; then, we establish the risk assessment framework using the collision risk ratio by combining deviation angle and stopping distance probabilities. To validate the proposed method, we conducted an experiment in the …

O Holy Night, Eric F. Spina

President's Blog: From the Heart

University of Dayton President Eric F. Spina wishes the UD family "a joyous Christmas, one that brings to mind that Holy Night from so many centuries ago. May your New Year," he wrote, "be filled with good health and the greatest gifts of all — faith, hope, and love."