bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS GGE BIPLOT PADA HASIL KLON-KLON UBI KAYU MENGGUNAKAN METODE RESTRICTED MAXIMUM LIKELIHOOD
Authors: Noerwijati Kartika , Nasrullah NFn , Taryono NFn , Prajitno Djoko 
Published: September 2017

The study was conducted in five locations i.e Kediri, Ponorogo, Probolinggo, Malang, and Mojokerto, from November 2010 until August 2011. The planting materials used were 15 cassava clones. The research objective was to compare analysis methods of the genotype × environment interaction, namely: a) GGE technique using REML without A matrix by assuming homogeneous residual error variance, b) GGE technique using REML with A matrix by assuming homogeneous residual error variance, c) GGE technique using REML without A matrix by assuming heterogeneous residual error variance, and d) GGE technique using REML with A matrix by assuming heterogeneous residual error variance. The results showed that GGE technique using REML without A matrix by assuming heterogeneous residual error variance was more appropriate. Clones CMM 03038-7 (G8) had a wide adaptability and high yield potential, and its clone was closest to the ideal criteria for genotype compared with other genotypes. Clones CMM 03094-4 (G10) had specific adaptability in the environments S2 (Malang) and S5 (Mojokerto), and it had higher yield potential than the control varieties UJ5, Malang 6, and Adira 4. Environment Kediri (S1) had the highest yield among other environments and Kediri was a suitable environment for the growth and selection of cassava.<p align="center"> </p>
2018 SPE President Darcy Spady
Authors: Spady Darcy 
Published: September 2017

Darcy Spady, the 2018 SPE president, is the first Canadian to have been elected to this position. Spady, who works with Calgary-based Broadview Energy, has been an active SPE member since graduating from university. Most recently, he served on the SPE International Board as regional director for Canada; he is also a member of the Vancouver and Calgary sections. Spady has held officer positions in the Calgary, Illinois Basin, and Appalachian sections. In 2012, he won a Regional Service Award for his work in the Canada region.
Spady has an extensive background in the natural gas, oil, and heavy oil segments of the industry, having worked a decade for Schlumberger across North America in its wireline and pressure pumping segments, as well as with Columbia Natural Resources/Triana Energy group in the Appalachians, and Atlantic Canada. He has also served as CEO of Calgary-based Contact Exploration and more recently as head of sales for Sanjel Corporation.
He is an active independent director, serving as board chairman for Green Imaging Technologies, Crestwynd Exploration, and as a board member of MNP Petroleum. He previously served on the boards of Edge Resources, Contact Exploration, Guildhall Minerals, and Poplar Point Exploration. Spady holds a BS degree in petroleum engineering from the University of Alberta.
What are the main goals you would like to accomplish?
I have five main goals:
The first one is revising the SPE Strategic Plan, which has not been updated in 5 years, and which charts the course of SPE. Times have changed dramatically, and it is a different industry and a different SPE.
The second comes from my background in the industry and the company I am with, Broadview Energy. I have a special interest in heavy oil technology and would like to promote the importance of that.
The third goal is something I have been talking about in the past year since I was nominated: the importance of increasing awareness about the need for community consensus and corporate social responsibility. Previous SPE presidents have talked about it, but my flavor is a little different. I am actually a farmer and do field work around wellheads, so I look at the issue from a landowner point of view.
The fourth is to ensure that SPE’s new sections and sections that may be in remote areas receive the same quality of programs and services that the larger, better-established sections receive. I think equality in what SPE delivers is very important. We need to grow equitably in a global sense as well, making sure we are a diverse organization that reflects our membership.
The fifth is to represent and support the independent and small producers around the world. My experience on the producer side has been with small companies, and I sit at some board tables with small companies, so I feel an obligation to ensure better attention from SPE to this group.
Angola: Does Recent Change Mean Economic Development?
Authors: Carpenter Chris 
Published: September 2017

If it is a truism that the nations of the developing world are engaged in the process of developing, it is also clear that, for a variety of reasons, not all nations experience the process at the same rate. In the case of Angola—the populous southern African republic described in some quarters as a dynamic, emerging powerhouse, and in others as a would-be success story stymied by cronyism—the oil industry waits to see whether the effect of recent political shifts will change the economic and social course that the nation has charted in its often-tumultuous 42 years of independence.
The waters off the nation’s Atlantic coast hold enormous exploration and production potential, a fact that has allowed Angola to compete with heavyweight Nigeria as the continent’s top oil producer, even surpassing the Federal Republic for several months in late 2016. After years of working to impress upon the rest of the world that it was prepared to take on a major role in the continent’s future, Angola joined the Organization of the Petroleum-Exporting Countries (OPEC) in 2007. Its proven crude reserves stand at 9.5 billion barrels (at least 1–2 billion more barrels may also rest in its presalt blocks), with another 308 billion cubic meters of natural gas reserves. At its peak in early 2010, its crude oil production reached over 2 million B/D (as of June 2017, its production stood at 1.66 million B/D after the early-2017 OPEC effort to cut production, while crude oil exports reached 1.67 million B/D). Table 1 provides Angola’s oil production in recent years.
Angola is the second-largest African supplier of oil to China, and is a top-10 global producer of vented and flared natural gas. But Angola has, naturally, been subject to the same effects of low oil prices and market instability that have wrought recent havoc on all oil-based economies, especially in light of the fact that Angola’s production is highly dependent upon cost-intensive deepwater production. As the price crash settled into its deepest ebb in 2016, the influx of foreign money from its oil exports dropped a staggering 55%.
Its famously expensive capital Luanda continues to erupt into towering walls of glass and the cranes that hoist them, but skeptics believe that Angola’s growth may be too hollow and one-dimensional to project long-term economic growth. The question now is whether a recent change in leadership, in which longtime President José Eduardo dos Santos stepped down after legislative elections, means a genuine onset of economic diversification and social development for the nation’s 28 million people, and what such a transformation might mean for the industry in Africa.
Water-Injection Operations and Gas-Injection Sensitivities in the Bakken Formation
Authors: Carpenter Chris 
Published: September 2017

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 185030, “Improved Oil Recovery in Tight Oil Formations: Results of Water-Injection Operations and Gas-Injection Sensitivities in the Bakken Formation of Southeast Saskatchewan,” by S.M. Ghaderi, C.R. Clarkson, and A. Ghanizadeh, University of Calgary, and K. Barry and R. Fiorentino, Crescent Point Energy, prepared for the 2017 SPE Canada Unconventional Resources Conference, Calgary, 15–16 February. The paper has not been peer reviewed.
Although improvement in hydraulic-fracture properties and infill drilling remains the focus of recovery enhancement from the Bakken, low oil recoveries and steep initial decline rates are experienced in primary-recovery operations, even after application of multifractured-horizontal-well technology. Therefore, many pilots have been executed to determine the viability of waterflooding for maintaining oil rates and improving recoveries through reservoir-pressure maintenance and sweep-efficiency enhancement. This paper presents the performance results from one of the waterflood pilots in the Viewfield Bakken.
Numerical-Model Setup
A section of the Bakken reservoir (the geology of which is described in detail in the complete paper) deemed to be representative of the waterflood performance in Viewfield is considered for modeling. This section has been developed by use of multifractured horizontal wells completed in the Middle Bakken (main target reservoir) with a well spacing of 200 m (eight wells per section, named A through H). All eight wells started oil production within a similar time frame, and, after approximately 1 year of production, every other well was converted to a water injector.
Reservoir-Fluid Model. Conventional pressure/volume/temperature (PVT) analysis was conducted by a commercial laboratory on 12 surface-separator oil and gas samples. Recombination of fluids at reservoir temperature (156.2°F) yields a final gas/oil ratio of 810 scf/STB. Subsequently, a series of constant-composition-expansion and differential-liberation tests was conducted on the recombined fluid to determine oil-saturation pressure, oil-formation-volume factor, oil density, and oil and gas viscosity as a function of pressure. The Peng-Robinson equation of state and modified Pedersen viscosity correlation were tuned to replicate the PVT properties of oil and gas as a function of pressure.
Reservoir Grid Model. On the basis of the well tops and reservoir net-pay values, reservoir structure for the study area was generated. It is known that the minimum horizontal stress is aligned in the northwest direction and at approximately 50° with respect to the east/west horizon. Therefore, reservoir gridding is rotated at this angle to mimic the hydraulic-fracture orientation along the horizontal-well laterals. Grid size in the horizontal direction is 65×65 ft, and the total thickness of the reservoir is approximately 28 ft, which is divided into nine layers of equal thickness.
Technique Blends Dimensionless Numbers and Data Mining To Predict Recovery Factors
Authors: Wilson Adam 
Published: September 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 181024, “Recovery-Factor Prediction for Deepwater Gulf of Mexico Oil Fields by Integration of Dimensionless Numbers With Data-Mining Techniques,” by Priyank Srivastava and Xingru Wu, SPE, University of Oklahoma, and Amin Amirlatifi, SPE, Mississippi State University, prepared for the 2016 SPE Intelligent Energy International Conference and Exhibition, Aberdeen, 6–8 September. The paper has not been peer reviewed.
Using attributes from a database of 395 deepwater Gulf of Mexico oil fields, a set of dimensionless numbers is calculated that helps in scaling attributes for all the oil fields. On the basis of these dimensionless numbers, various data-mining techniques are used to classify the oil fields. Subsequently, partial-least-square (PLS) regression is used to relate the dimensionless numbers to the recovery factor. This study shows that dimensionless numbers, together with data-mining techniques, can predict field behavior in terms of recovery factor for sparse data sets.
Introduction
The digitization of information and the rise of inexpensive sensor technologies have ushered in a new era of computing in which acquired data are used to show hidden patterns and trends. This method of computing is very efficient in solving inverse problems where parameters affecting system characteristics are not completely known. Hydrocarbon reservoirs provide a classic case of a natural system where engineers have limited control on the design of the system that they work with; thus, they have to rely on indirect measurements to determine properties of the reservoir and use these properties for prediction of future trends. Performance prediction is usually accomplished with either analytical material-balance equations or numerical reservoir simulation. However, both methods use a bottom-up work flow, which suffers from a drawback: the need for accurate representation of subsurface geology. Data mining, on the other hand, provides an alternative top-down intelligent-reservoir-modeling approach, which uses measured reservoir properties as the basis for modeling.
Using publicly available information—including information on geology, geophysics, reserves, production, and infrastructure—the complete paper applies various data-mining and predictive-analytics algorithms to estimate recovery factor. Classical reservoir engineering assumes that recovery factor is dependent on rock properties, fluid properties, geological structures, and mode of production. Instead of using traditional deterministic methods, such as material balance or numerical simulation, this study uses data-driven analytics to estimate the recovery factor.
Application of response surface methodology as a new PID tuning method in an electrocoagulation process control case
Authors: Camcıoğlu Ş. , Özyurt B. , Doğan İ. C. , Hapoğlu H. 
Published: September 2017

Abstract
In this work the application of response surface methodology (RSM) to proportional-integral-derivative (PID) controller parameter tuning for electrocoagulation (EC) treatment of pulp and paper mill wastewater was researched. Dynamic data for two controlled variables (pH and electrical conductivity) were obtained under pseudo random binary sequence (PRBS) input signals applied to manipulated variables (acid and supporting electrolyte flow rates). Third order plus time delay model parameters were evaluated through System Identification Toolbox™ in MATLAB®. Four level full factorial design was applied to form a design matrix for three controller tuning parameters as factors and to evaluate statistical analysis of the system in terms of integral of square error (ISE), integral of absolute error (IAE), integral of time square error (ITSE) and integral of time absolute error (ITAE) performance criteria as response. Numerical values of the responses for the runs in the design matrices were determined using closed-loop PID control system simulations designed in Simulink®. Optimum proportional gain, integral action and derivative action values for electrical conductivity control were found to be 1,500 s, 0 s and 16.4636 s respectively. Accordingly, the same optimization scheme was followed for pH control and optimum controller parameters were found to be −8.6970 s, 0.0211 s and 50 s, respectively. Theoretically optimized controller parameters were applied to batch experimental studies. Chemical oxygen demand (COD) removal efficiency and energy consumption of pulp and paper mill wastewater treatment by EC under controlled action of pH at 5.5 and electrical conductivity at 2.72 mS/cm was found to be 85% and 3.87 kWh/m3 respectively. Results showed that multi input–multi output (MIMO) control action increased removal efficiency of COD by 15.41% and reduced energy consumption by 6.52% in comparison with treatment under uncontrolled conditions.
Quality of Life in Dementia Sufferers: The Role of Diet and Exercise
Authors: Ricci Pasquale , Massoni Francesco , Ricci Lidia , Onofri Emanuela , Donato Giuseppe , Ricci Serafino 
Published: September 2017

Background:
Among the myriad of factors modulating quality of life assessments estimated
in patients presenting a variety of cognitive impairments, the distinctive and critical influence of diet and
exercise cannot be overestimated.

Objective:
The objective of this study was to review the evidence to confirm the association between
these health-endowering agents and cognitive performance in People With Dementia as well as providing
a correlation between Mini Mental State Examination scores and available anthropometric data.

Methods:
The authors tested the hypothesized correlation on a sample of subjects with instrumentally
confirmed cognitive impairment using parameters as Body Mass Index and calf circumference.

Results:
The results confirm the hypothesis and suggesting the possible use of anthropometric data in the
process of objective evaluation of the patient with cognitive impairment that could also be used for forensic
medicine.
Economic and Political Reform In Post-Mao China
Authors: Brødsgaard Kjeld Erik 
Published: September 2017

The present paper will focus on the evolution of economic and political reform in the post-Mao era. It will be argued that although economic reforms were being introduced and implemented from 1979 onwards, the road toward basic systemic reform was blocked by the absence of a simultaneous change of the political system. That the issue of political reform has resurfaced in China Kjeld Erik Brsdsgaard now, ten years after Mao, may signify that economic and political reformers have joined forces and that major systemic changes are likely.
A postscript has been added to the main body of the article in order to analyze the significance of the fall of General Secretary Hu Yaobang in January this year. It is based on a collection of CCP Central Documents (zhongfa) that have a restricted circulation in China and, in principle, are unavailable to
Western analysts of Chinese politics.
Breaking Through: Literature and Arts in China, 1997-1986
Authors: McDougall Bonnie S. 
Published: September 2017

One of the most notable features of the fifties and sixties in China was the public willingness of the literary and art world to submit to the dictates of the political leadership. The reasons for their cooperation, heavily qualified though it might have been, and the various methods by which the authorities ensured it, have been described elsewhere and are not the topic of this paper.' What I am interested in here is the way in which this cooperation was undermined in the seventies and openly flouted in the eighties. Instead of submission, a sigruficant number of people in literature and the arts offered challenges both within the system and outside it, ranging from flagrant rejection of accepted conventions to a more cautious testing of the limits of tolerance, and from demands for professional autonomy to private arrangements outside existing organisations. The limit-setters and upholders - that is, the overlapping groups of orthodox Party leaders, the entrenched cultural bureaucracy, and writers and artists claiming positions of authority - found
themselves restricted in their response to these challenges by the post-Mao modemisation program. The reform faction in the new leadership, acknowledging a complex relationship between the superstructure and the economic basis, found themselves to a certain extent obliged to yield ground, supporting the challengers and restraining the orthodox. The more detached of the Party intellectuals might also have noticed how, with a keen grasp of Marxist imperatives, the new activists began by establishing their own means of production and distribution.
Japan's Defence: Today and Tomorrow
Authors: Iwashima Hisao 
Published: September 2017

When the Pacific War was over, I was taking a training to become a commanding officer of the KORYLI (Seadragon), a five-man midget submarine, modified version of the two-man submarine which penetrated Pearl Harbor in 1941. Missions in these submarines were not suicidal, but very nearly so, because they were automatically forced to the surface after firing one torpedo out of two due to the loss of balance. They would float in
front of the target for about twenty seconds, submerge to normal depth, fire the second torpedo and come up again. It was a "secret weapon" in the hands of the Japanese Imperial Navy before the end of the war. About 150 such submarines were ready to fight against the landing forces of the United States.
I mention this to underline the difference between my feelings at that time, and my feelings now. I had no fear of death during the war. I was not afraid of fighting against a superior force for the sake of the nation. But I am much more afraid of death now. Although 1 have taught for a long time at the National Defence College (currently the National Institute for Defence Studies) about international security, my sentiments are very different from what they were in the prewar period.
The difference in my feelings is also tied to the atomic bombing of Hiroshima. I was in the Submarine School at Otake, 40 kilometers away from Hiroshima when the bomb was dropped, and saw the flash of the explosion and the mushroom cloud, and felt the shockwave. Two days later, I walked through Hiroshima for about two hours. I was told that if I had been there for five hours I would have been fatally affected, but fortunately I was not exposed to the radiation long enough for that. When I came back to Kure, which was near my home port at that time, my group and I got very drunk, to try and expunge the nightmare we had seen. The drinking helped save my life, flushing out the radiation. I do not know whether to believe that or not, but in any case I am still here.
Only someone who had gone through the same experience, I think, could understand the anxieties I had after the war, especially when I was about to Hisao Iwashima have my first child. Even my wife did not really understand. At any rate, these feelings make up a part of my mentality. Frankly speaking, the Japanese "nuclear allergy" is something that ought to persist. It is unacceptable to use atomic weapons for any reason, under any reason, under any conditions. At the same time, I have to acknowledge the effectiveness of nuclear weapons as a deterrent. This is the dilemma I have to confront in my own thinking.
Vélez de Guevara, Reinar después de morir y El Diablo está en Cantillana. Edición, prólogo y notas de Manuel Muñoz Cortés. Colección "Clásicos Castellanos", Espasa-Calpe, Madrid, 1948. lxxiv + 204 págs.
Authors: Gili Gaya Samuel 
Published: September 2017

Se reseñó el libro: Reinar después de morir y El Diablo está en Cantillana. Edición, prólogo y notas de Manuel Muñoz Cortés.
Alejo Carpentier, La música en Cuba. México, Fondo de Cultura Económica, 1946, 282 págs. ilustr. (Colección Tierra Firme, núm. 19). / Oneyda Alvarenga, Música popular brasileña. México, Fondo de Cultura Económica, 1947, 270 págs. ilustr. (Colección Tierra Firme, núm. 33).
Authors: Salazar Adolfo 
Published: September 2017

Se reseñaron: Alejo Carpentier, La música en Cuba, y Oneyda Alvarenga, Música popular brasileña.
Tirso de Molina, La prudencia en la mujer. Critical text of the princeps edition in Parte Tercera de las comedias del Maestro Tirso de Molina, 1634. Introduction and notes by Alice Huntington Bushee and Lorna Lavery Stafford. México, 1948. lii + 172 págs. / I. L. McClelland, Tirso de Molina. Studies in dramatic realism. Liverpool, 1948. 256 págs. (Liverpool Studies in Spanish Literature. Third Series). / Tirso de Molina, La villana de Vallescas, edited, with introduction, notes and vocabulary by Sherman W. Brown. D. C. Heath & Co., Boston, 1948. xxxiv + 238 págs.
Authors: Bruerton Courtney 
Published: September 2017

Se reseñaron: Tirso de Molina, La prudencia en la mujer. Critical text of the princeps edition in Parte Tercera de las comedias del Maestro Tirso de Molina, 1634. Introduction and notes by Alice Huntington Bushee and Lorna Lavery Stafford; I. L. McClelland, Tirso de Molina. Studies in dramatic realism; y Tirso de Molina, La villana de Vallescas, edited, with introduction, notes and vocabulary by Sherman W. Brown.