scholarly journals Sustaining a temperature difference

2020 ◽  
Vol 9 (3) ◽  
Author(s):  
Matteo Polettini ◽  
Alberto Garilli

We derive an expression for the minimal rate of entropy that sustains two reservoirs at different temperatures T_0T0 and T_\ellTℓ. The law displays an intuitive \ell^{-1}ℓ−1 dependency on the relative distance and a characterisic \log^2 (T_\ell/T_0)log2(Tℓ/T0) dependency on the boundary temperatures. First we give a back-of-envelope argument based on the Fourier Law (FL) of conduction, showing that the least-dissipation profile is exponential. Then we revisit a model of a chain of oscillators, each coupled to a heat reservoir. In the limit of large damping we reobtain the exponential and squared-log behaviors, providing a self-consistent derivation of the FL. For small damping “equipartition frustration” leads to a well-known ballistic behaviour, whose incompatibility with the FL posed a long-time challenge.

Author(s):  
مها بنت منصور الصائغ

شهد تاريخ الأمة الإسلامية حضارة ونهضة عالمية في جميع مجالات الحياة الإنسانية، ومما كان له كبير الأثر في ذلك هو الأوقاف التي بدأت مع سيد البشرية محمد صلى الله عليه وسلم واستمرت بتنوع وشمولية إلى عصرنا الحالي؛ ولكن ما تعرضت إليه الأوقاف من إهمال وإقصاء وضياع يرجع لأسباب عديدة من أهمها غياب التوثيق الوقفي. تقوم الدراسة على تتبع مفهوم الوقف والتوثيق، والوقف في الإمارات العربية المتحدة ول سيما في إمارة الشارقة. توصلت الدراسة إلى نتائج منها: أن الأوقاف قائمة منذ زمن بعيد، وأن رغبة الواقف بالوقف وإقدامه عليها لم ينقصها سوى وثيقة، وأنه لا وثائق لها ولا مستندات، كما أن العرض الموجز لنشأة دائرة الأوقاف بالشارقة وسعيها لإحياء سنة الوقف ونشر ثقافته نراه يتضح شيئاً فشيئاً من خلال تفعيل مواد القانون والبحث حول الأنسب والأصح لحماية الأوقاف، ولم يكن هذا الاهتمام بالوقف إلا انعكاساً لتوجه الواقفين وتماشياً لرؤية الحكام وامتثالاً لنهج خير الأنام ورغبة في تكافل الأرواح وحباً للسلام. الكلمات المفتاحيّة: الوقف، التوثيق، المقارنة، الشارقة. Abstract The history of Islamic nation has witnessed a global civilization and it has had a great impact in all areas of human life, including the endowments that began with the master of humankind; Muhammad S.A.W. and it was continuing in diversity and comprehensively until our epoch. However, there are some problems related to endowment management such as negligence, exclusion and loss that due to many reasons. Among the most important reasons is the absence of endowment documentations. Therefore, the study aims to discuss the concept of endowment and documentation, as well as the endowment in United Arabic Emirates, especially in the Emirate of Sharjah. The study concluded that the practice of endowment has been existed for a long time, yet there are in need of endowment documentations. This study also found that the information related to the establishment of institution of endowment in Sharjah and its role has   spread widely to the people through the enforcement of the law and the implementation of the research related to the practice of endowment in order to sustain them in a good way. This documentation system was only a reflection of what has  stated in Shariah laws regarding the practice of endowment among the donors, so that it will be in line with the approach of good intentions and love of peace. Keywords: Endowment, Documentation, Comparison, Sharjah.   


Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2889
Author(s):  
Przemyslaw Dopieralski ◽  
Iryna V. Omelchenko ◽  
Zdzislaw Latajka

Despite significant progress in conformational analysis of cyclic molecules, the number of computational studies is still limited while most of that available in the literature data have been obtained long time ago with outdated methods. In present research, we have studied temperature driven conformational changes of the furan ring at three different temperatures. Additionally, the effect of deuteration on the ring dynamics is discussed; in addition, the aromaticity indices following the Bird and HOMA schemes are computed along all trajectories. Our ab initio molecular dynamic simulations revealed that deuteration has changed the furan ring dynamics and the obvious consequences; in addition, the shape and size of molecule are expected to be different.


Author(s):  
S Rambabu ◽  
N Ramesh Babu

This article covers the efforts on characterising ice-bonded abrasive polishing tool in terms of the mechanical and tribological properties such as hardness, coefficient of friction, and wear rate. These studies were attempted on the tools prepared at different temperatures ranging from −10 °C to 0 °C with a view to identify the condition suitable to prepare ice-bonded abrasive polishing tool for effective polishing of Ti–6Al–4V alloy specimen. It also presents the methods adopted to determine various properties of ice-bonded abrasive polishing tool. Hardness was estimated from the measured penetration depth of cone shape indenter into the tool, coefficient of friction was determined from the change in power drawn by the motor rotating the tool mould, and wear behaviour of tool was assessed from the melting rate of the tool determined from the change in height of ice-bonded abrasive polishing tool at different stages of polishing. From the results of this study, it is clear that ice-bonded abrasive polishing tool prepared at −4 °C has possessed sufficient hardness, coefficient of friction, and reasonable wear rate suitable for polishing of Ti–6Al–4V specimens. This article also covers the details of low-temperature coolant supply unit developed to prepare the ice-bonded abrasive polishing tool at any desired temperature between 0 °C and −40 °C and thus to maintain it for a long time. Polishing studies with such ice-bonded abrasive polishing tool showed 72% improvement in finish after 90 min of polishing of Ti–6Al–4V specimen with tool, prepared at −4 °C.


2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Gualtiero Calboli

AbstractI started from the relative clause which occurs in Hittite, and in particular with the enclitic position of the relative pronoun. This is connected with the OV position and this position seems to have been prevailing in Hittite and PIE. The syntactic structure usually employed in Hittite between different clauses is the parataxis. Nevertheless, also the hypotaxis begins to be employed and the best occasion to use it was the diptych as suggested by Haudry, though he didn't consider the most natural and usual diptych: the law, where the crime and the sanction build a natural diptych already in old Hittite. Then I used Justus' and Boley's discussion on the structure of Hittite sentence and found a similarity with Latin, namely the use of an animate subject as central point of a sentence. With verbs of action in ancient languages the subject was normally an animate being, whereas also inanimate subject is employed in modern languages. This seems to be the major difference between ancient and modern structure of a sentence, or, better to say, in Hittite and PIE the subject was an animate being and this persisted a long time, and remained as a tendency in Latin, while in following languages and in classical grammar the subject became a simple nominal “entity” to be predicated and precised with verb and other linguistic instruments. A glance has been cast also to pronouns and particles (sometimes linked together) as instruments of linking nominal variants of coordinate or subordinate clauses and to the development of demonstrative/deictic pronouns. Also in ancient case theory a prevailing position was assured to the nominative case, the case of the subject.


2001 ◽  
Vol 64 (2) ◽  
Author(s):  
M-C. Firpo ◽  
F. Doveil ◽  
Y. Elskens ◽  
P. Bertrand ◽  
M. Poleni ◽  
...  

1995 ◽  
Vol 09 (16) ◽  
pp. 985-988 ◽  
Author(s):  
A.M. JAYANNAVAR

We have solved analytically a simple model of evolution of particles driven by identical noise. We show that the trajectories of all particles collapse into a single trajectory at long time. This synchronization also leads to violation of the law of large numbers.


2018 ◽  
Vol 60 (2) ◽  
pp. 221-232
Author(s):  
Tareq Na’el Al-Tawil ◽  
Prabhakar Gantasala ◽  
Hassan Younies

Purpose This paper aims to discuss the benefits and disadvantages of the law on the expansion of the jurisdiction of the Dubai International Financial Centre (DIFC) Court. The major role of DIFC Courts in the Arab community is to handle cases related to commerce and business. For a long time, the court had been acting only in their geographical area until a new law was enacted to extend their jurisdiction all over the world. Afterward, a lot of criticism emerged as for why and how the court will benefit from such actions. The law has drawn a harsh response, although most benefits have also been experienced since the court received quite a large number of new signings. Interaction at the world business forum has benefited the economy of Dubai thanks to the law. Design/methodology/approach The following study focuses on a description of such benefits and drawbacks. The study does not evaluate a factual process of expansion but indicates the most distinct evidence of positive, as well as negative consequences of the expansion. Findings It is appropriate to make a general comment on the fact that the expansion of DIFC Court is not sufficiently effective at the current stage. Needless to say, it contains numerous positive aspects, but the gaps are evidently essential because they place the entire Court in a hard circumstance. The Court does not have a well-developed legal framework for its new area of jurisdiction as long as its limited volume of prior precedent is a distinct sign of the Court’s dependence on the UAE’s Law. In such way, DIFC Court will not be able to address issues within new fields of jurisdiction, as it simply lacks an expertise and international law in its legal framework. Moreover, the jurisdiction over new areas of international business was not verified with a plain system of mediation, which is why a current expansion of DIFC Court has to be recognized as redundant. However, its advantages are tending to produce their effects provided that the Court manages to address its current problems. Originality/value The study has described the basic benefits and drawbacks of DIFC Court expansion. To speak about the main benefits, they can be depicted as appliance of the common law, unification of English language for proceedings, presence of a preliminary arbitration and guarantees of award enforcement. In a similar way, the drawbacks of the expansion have been issued. The study has identified such drawbacks as lack of international and sophisticated expertise, untested legal framework, strong influence of forum non conveniens, and existence of a limited volume of prior precedent. The paper has not assessed a success of a factual expansion of DIFC Court jurisdiction, but it has managed to fulfill its primary purpose. Thus, the paper has identified a certain tendency concerning the expansion.


Rechtsidee ◽  
2019 ◽  
Vol 7 ◽  
Author(s):  
Hariansi Panimba Sampebulu

The position of women in legal construction in Indonesia today is still difficult to adjust to the circumstances that occur, especially in terms of equality issues. The abortion that has been a problem for so long time, being discussed because of the rules that are considered not in accordance with the existing rules, and the amount of pressure from various things. Law and Women are always placed in objects that are not neutral, especially in terms of discussing reproductive health. The government and legislation feel that they have a stake in integrating reproductive health owned by women. It is the position of women in the law that gives rise to many struggle movements and the diffusion of feminism in Indonesia. The rules of Article 31 paragraph 1 and 2 of Government Regulation Number 61 of 2014 which regulate safe abortion need to be more attention and safeguarded, so that a woman has the right to be based on herself. 


2020 ◽  
Vol 5 (2) ◽  
pp. 75-93
Author(s):  
Prabowo Prabowo

It’s long time, churches debate on the application of the law to believers today. Some of the figures found grace is no longer relevant in the church. But some Christian leaders argue otherwise, saying that the law is still relevant and should be done. But, now a days many interpretations that are not right about Paul's theology on the application of the law in a period of grace. False interpretations of verses taken from Paul's letters caused God's people to be confused. Therefore, there is a need for proper interpretation through the process of exegesis of the Book of Romans 2-8, resulting in the existence of the correct interpretation of the law in a period of grace.From the background and the problems, this research focused to sharpen understanding of the problems related to the application of grace in the church today. Researchers used descriptive method to describe it. Then the authors conducted a study exegesis consisting of an observational analysis, textual analysis, structural analysis, grammatical analysis, lexical analysis, historical analysis or conceptual, analytical theological and exegetical analysis of Romans 2-8. The purpose of this study is the first, to understand the interrelationships of the law and grace; second, to understand the uniqueness of Paul's theology in describing the application of the law in a period of grace; Third, investigate exegesis mean passages from Paul's Letter to the Romans chapters 2-8 which discusses the relevance of the law and grace. The results of the discussion found several things: First, the assumption that Paul abolishes the law is not correct. Paul did not abolish the Law in a period of grace. Second, the law still relevant in the church today. Jesus fulfill the law for believers, so that believers can do the latter by the power of the Holy Spirit. And keep in mind that God has put His laws are no longer in tablets of stone dead, but in the mind of his people. Third, the law has a unique role and functions in the day of grace. The Law was God's will for believers because it still remains a self-revelation of God.Recommended for ministers, pastors, and teachers of theology seriously investigate the truth about the existence of the law in the church today, so that people are not confused by every falseteaching. Abstrak Indonesia  Sudah lama sekali, gereja berdebat tentang penerapan hukum kepada orang percaya hari ini. Beberapa tokoh menemukan kasih karunia tidak lagi relevan di gereja. Tetapi beberapa pemimpin Kristen berpendapat sebaliknya, dengan mengatakan bahwa hukum masih relevan dan harus dilakukan. Namun, sekarang ini banyak tafsir yang tidak benar tentang teologi Paulus tentang penerapan hukum dalam masa kasih karunia. Penafsiran yang salah dari ayat-ayat yang diambil dari surat-surat Paulus menyebabkan umat Tuhan menjadi bingung. Oleh karena itu, diperlukan penafsiran yang tepat melalui proses penafsiran Kitab Roma 2-8, sehingga terjadi penafsiran hukum yang benar dalam masa rahmat.Dari latar belakang dan permasalahan tersebut, penelitian ini difokuskan untuk mempertajam pemahaman tentang permasalahan terkait penerapan anugerah di gereja saat ini. Peneliti menggunakan metode deskriptif untuk mendeskripsikannya. Kemudian penulis melakukan studi tafsir yang terdiri dari analisis observasional, analisis tekstual, analisis struktural, analisis gramatikal, analisis leksikal, analisis historis atau konseptual, analisis teologis dan analisis eksegetik Roma 2-8. Tujuan dari studi ini adalah yang pertama, untuk memahami keterkaitan antara hukum dan rahmat; kedua, memahami keunikan teologi Paulus dalam menjelaskan penerapan hukum dalam masa kasih karunia; Ketiga, menyelidiki eksegesis yang berarti bagian-bagian dari Surat Paulus kepada Roma pasal 2-8 yang membahas relevansi hukum dan kasih karunia.Hasil diskusi menemukan beberapa hal: Pertama, anggapan bahwa Paulus menghapus hukum adalah tidak tepat. Paulus tidak menghapus Hukum dalam masa kasih karunia. Kedua, hukum masih relevan di gereja saat ini. Yesus menggenapi hukum untuk orang percaya, sehingga orang percaya dapat melakukan yang terakhir dengan kuasa Roh Kudus. Dan perlu diingat bahwa Tuhan telah meletakkan hukum-hukum-Nya tidak lagi di loh batu mati, tetapi di benak umat-Nya. Ketiga, hukum memiliki peran dan fungsi yang unik di hari kasih karunia. Hukum adalah kehendak Tuhan bagi orang percaya karena itu tetap merupakan wahyu Tuhan. Dianjurkan agar pendeta, pendeta, dan guru teologi menyelidiki dengan serius kebenaran tentang keberadaan hukum di gereja saat ini, agar masyarakat tidak dibingungkan oleh setiap kesalahan pengajaran.


Author(s):  
M. M. Dzera ◽  
R. Y. Pasichnyy ◽  
A. M. Ostapchuk

The place and international position of Lebanon in the world political arena today is changing and transforming under the influence of globalization. Thus, this is not deprive, but changes the vector on the international arena and does not exclude the already acquired conservative character. Prime Minister Tamam Salam, who is the executive of the President of the Republic of Lebanon, is reforming and liberalizing the law and changing the vector of foreign policy. He doing this without leaving the traditions and religious views, also without rejecting the conservative nature of foreign and domestic policies. Although Lebanon is part of the League of Arab States, which is accused of non-democracies, it has a democratic regime for a long time. Balancing the policy of the Lebanese Republic between conservatism, traditionalism, democracy and liberalization makes Lebanon a great country for analysis, since it provides an opportunity to reflect the coexistence of democracy with the stereotyped vision of the “Islamic world”.


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