Analisa Daya Dukung Pondasi Dangkal pada Tanah Lempung Menggunakan Perkuatan Anyaman Bambu dan Grid Bambu dengan Bantuan Program Plaxis

Berbagai metode perbaikan tanah dewasa ini telah banyak dikembangkan, salah satunya dengan perkuatan tanah sebagai alternative pemecahan masalah terhadap penurunan dan daya dukung tanah yang rendah, namun banyak yang menggunkan bahan dari geosintetik yang dari segi biaya tentu lebih tinggi. Salah satu alternatif yang diberikan pada pemodelan ini yaitu grid bambu dan anyaman bambu sebagai pengganti geosintetik untuk bahan perkuatan pondasi dangkal pada tanah lempung. Tujuan dari pemodelan ini untuk mengetahui nilai daya dukung tanah dan BCR dengan perkuatan grid bambu dan anyaman bambu. Pemodelan pondasi dangkal dilakukan dengan menggunakan bantuan program Plaxis versi 8.2. Parameter yang diteliti adalah pengaruh variasi jarak dan jumlah lapis perkuatan dengan menggunakan lebar perkuatan yang sama terhadap nilai daya dukung tanah dengan melihat dari grafik hubungan penurunan dan beban hasil output program Plaxis. Dari hasil penelitian didapatkan bahwa penambahan jumlah 3 lapis perkuatan pada variasi jarak perkuatan dari dasar pondasi 0,25 B memberikan daya dukung tanah tertinggi yaitu sebesar 409,537 kPa. Dari pemodelan ini dapat diketahui bahwa semakin dekat jarak perkuatan dari dasar pondasi maka daya dukung tanah juga akan semakin besar

Studi Analisis Potensi Penghematan Konsumsi Energi melalui Audit dan Konservasi Energi Listrik di Rumah Sakit Universitas Riau

The cost of electrical bill in most of hospital in this big cities indicates getting high. This phenomenal can be anticipated through auditing. By doing this audit will be able to determine the cost factor and the related issue. This paper purposes audit energy to a hospital to evaluate the potential energy saving to reduce wastes of energy for unnecessary things. In this analysis will be obtained the hospital operational cost in the efficient way. The raw data is findout by observation and direct measurement in the respective hospital. The measurement of power quality in the electricity panel main by using the instrumention of power quality analyzer (PQA). The output of this instrumen has managed to figure out the following parameters i.e. output of voltage (V) , the current (ampere) , power factor (cosphi) , active power (W) , power reactive (VAR) and power imaginery (VA). Base on the measuremant result, the power quality status the hospital is obtained. In the overall, the following results are describing i.e. energy consumtion intensity (ECI) is 6,1 kWh/m2/month for non ac room and considered as inefficient criteria and 12,89 kWh/m2/month for ac room considered as efficient criteria .The measurement also to include the lighting component to get the intensity of light to compare the condition a standard value. For lighting in health the department of health, the Republic of Indonesia .This is to be increased consideration lighting done in order to meet standards , with the type of Fluorescent Lamp with light LED(Light Emitting Diode

Kontruksi Realitas Sosial Manjopuik Limau Pada Masyarakat Kenegerian Lubuk Jambi Kecamatan Kuantan Mudik Kabupaten Kuantan Singingi Provinsi Riau

Tradition Manjopuik Limau (picked limes) is a tradition-laden society norms and values in each set of the procession. Messages in a procession Manjopuik Limau (picked limes) that are transmitted through symbols, objects, musical instruments all have meaning. In Kenegerian Lubuk Jambi, Manjopuik Limau (picked limes) has always been an annual event for the community, that is exactly on the eve of Idul Fitri. The existence of a tradition Manjopuik Limau as local wisdom raises a variety of views and meanings of society against the tradition. Daripenelitian destination is to know the process of externalization, objectification, and internalization of society Kenegerian Lubuk Jambi.This study uses qualitative research methods with the presentation of descriptive analysis. The informants are perpetrators of tradition, community, traditional leaders, government and traditional leaders as a supporter informant, the informant election tradition by choosing actors who have participated in Limau Manjopuik more than three times and through other considerations. Informants selected by purposive sampling. Data collection techniques used were observation, interviews, and documentation. technical validity of the data used in this study is an extension of participation and triangulation. The results obtained suggests that the process of externalization of the government which supports the tradition Manjopuik Limau this tradition by making the national agenda. Externalization process of society that they assume Manjopuik Limau important to continue to be preserved as a valuable asset. Community considers this tradition as upara as well as an entertainment center. The process of objectification of society explains that the tradition Manjopuik Lemons has experienced a shift, but even so the community. There is an organization that continues to support the Nature Batobo the continuity of tradition Manjopuik Limau to socialize about how the importance of maintaining the existing potential of cultural assets. Kenegerian Lubuk Jambi community also participated in the success of every implementation Manjopuik Limau tradition by providing assistance in the form of material and equipment required and lend. The internalization process Kenegerian society Lubuk Jambi namely Manjopuik Limau interpret tradition as tradition formed by the union and unity, as a venue for young people as well friendship society. Tradition Manjopuik Limau can also embrace young people in shaping socially correc

Hierarchy of piecewise non-linear maps with non-ergodicity behavior

We study the dynamics of hierarchy of piecewise maps generated by one-parameter families of trigonometric chaotic maps and one-parameter families of elliptic chaotic maps of $\mathbf{cn}$ and $\mathbf{sn}$ types, in detail. We calculate the Lyapunov exponent and Kolmogorov-Sinai entropy of the these maps with respect to control parameter. Non-ergodicity of these piecewise maps is proven analytically and investigated numerically . The invariant measure of these maps which are not equal to one or zero, appears to be characteristic of non-ergodicity behavior. A quantity of interest is the Kolmogorov-Sinai entropy, where for these maps are smaller than the sum of positive Lyapunov exponents and it confirms the non-ergodicity of the maps.Comment: 18 pages, 8 figure

Late Pleistocene climate of the northern Iberian Peninsula: New insights from palaeoglaciers at Fuentes Carrionas (Cantabrian Mountains)

Producción CientíficaNew Be dates for glacial landforms in the Fuentes Carrionas area (Cantabrian Mountains, nothern Spain) are presented. Mapped and dated landforms in Fuentes Carrionas made possible a palaeoglacier reconstruction for four glacial stages. Results were compared to other nearby palaeoenvironmental proxies, so a final approximation on the mean annual temperature and annual precipitation that caused the four glacial advance stages is proposed. Glaciers reached their maximum extension at 36 ka, in a cold and dry environment. A second advance stage took place between 18.5 and 19.5 ka, during the Last Glacial Maximum (LGM), when glaciers advanced in a wet environment, with positive rainfall anomalies. A third glacial advance was dated during the Oldest Dryas, in which climate shifted to extremely cold and dry conditions. Finally, a last stage has been identified and proposed to the Younger Dryas, in which precipitation anomalies are negligible. Our results confirm some of the previously made palaeoglacial and palaeoenvironmental inferences for the Iberian Peninsula, as well as provide Q4 valuable and accurate anomalies, which are useful for climate modelling.Ministerio de Economía, Industria y Competitividad (project CGL2015-68144-R

River Restoration in Spain: Theoretical and Practical Approach in the Context of the European Water Framework Directive.

River restoration is becoming a priority in many countries because of increasing the awareness of environmental degradation. In Europe, the EU Water Framework Directive (WFD) has significantly reinforced river restoration, encouraging the improvement of ecological status for water bodies. To fulfill the WFD requirements, the Spanish Ministry of the Environment developed in 2006 a National Strategy for River Restoration whose design and implementation are described in this paper. At the same time many restoration projects have been conducted, and sixty of them have been evaluated in terms of stated objectives and pressures and implemented restoration measures. Riparian vegetation enhancement, weir removal and fish passes were the most frequently implemented restoration measures, although the greatest pressures came from hydrologic alteration caused by flow regulation for irrigation purposes. Water deficits in quantity and quality associated with uncontrolled water demands seriously affect Mediterranean rivers and represent the main constraint to achieving good ecological status of Spanish rivers, most of them intensively regulated. Proper environmental allocation of in-stream flows would need deep restrictions in agricultural water use which seem to be of very difficult social acceptance. This situation highlights the need to integrate land-use and rural development policies with water resources and river management, and identifies additional difficulties in achieving the WFD objectives and good ecological status of rivers in Mediterranean countries

Fluctuating fire regimes and their historical effects on genetic variation in an endangered shrubland specialist

The Pleistocene was characterized by worldwide shifts in community compositions. Some of these shifts were a result of changes in fire regimes, which influenced the distribution of species belonging to fire-dependent communities. We studied an endangered juniper–oak shrubland specialist, the black-capped vireo (Vireo atricapilla). This species was locally extirpated in parts of Texas and Oklahoma by the end of the 1980s as a result of habitat change and loss, predation, brood parasitism, and anthropogenic fire suppression. We sequenced multiple nuclear loci and used coalescence methods to obtain a deeper understanding of historical population trends than that typically available from microsatellites or mtDNA. We compared our estimated population history, a long-term history of the fire regime and ecological niche models representing the mid-Holocene, last glacial maximum, and last interglacial. Our Bayesian skyline plots showed a pattern of historical population fluctuation that was consistent with changing fire regimes. Genetic data suggest that the species is genetically unstructured, and that the current population should be orders of magnitude larger than it is at present. We suggest that fire suppression and habitat loss are primary factors contributing to the recent decline of the BCVI, although the role of climate change since the last glacial maximum is unclear at present

The Problem of Signal and Symbol Integration: A Study of Cooperative Mobile Autonomous Agent Behaviors

This paper explores and reasons about the interplay between symbolic and continuous representations. We first provide some historical perspective on signal and symbol integration as viewed by the Artificial Intelligence (AI), Robotics and Computer Vision communities. The domain of autonomous robotic agents residing in dynamically changing environments anchors well different aspects of this integration and allows us to look at the problem in its entirety. Models of reasoning, sensing and control actions of such agents determine three different dimensions for discretization of the agent-world behavioral state space. The design and modeling of robotic agents, where these three aspects have to be closely tied together, provide a good experimental platform for addressing the signal-to-symbol transformation problem. We present some experimental results from the domain of cooperating mobile agents involved in tasks of navigation and manipulation